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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.158 by root, Wed Jan 10 19:52:43 2007 UTC vs.
Revision 1.389 by root, Sat Oct 20 04:39:57 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
39		60
		61	our $RELOAD; # number of reloads so far
40	our @EVENT;	62	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		63
43	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
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 $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
47		89
48	our %CFG;	90	our %CFG;
49		91
50	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	93	our $RUNTIME;
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.
		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.
109		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/crossfire/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 $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
133		194
134	LOG llevError, $msg;	195	LOG llevError, $msg;
135	};	196	};
136	}	197	}
137		198
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		206
145	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	208	# within the Safe compartment.
147	for my $pkg (qw(	209	for my $pkg (qw(
148	cf::global cf::attachable	210	cf::global cf::attachable
…		…
157		219
158	$Event::DIED = sub {	220	$Event::DIED = sub {
159	warn "error in event callback: @_";	221	warn "error in event callback: @_";
160	};	222	};
161		223
162	my %ext_pkg;	224	#############################################################################
163	my @exts;
164	my @hook;
165		225
166	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
167		227
168	=over 4	228	=over 4
169		229
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	249	$d
190	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
191	}	251	}
192		252
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
196		254
197	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
198		256
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
207		258
208	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
209		260
210	=cut	261	=cut
211		262
212	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
214	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
215	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
216		267
217	=item cf::lock_wait $string	268	=item cf::lock_wait $string
218		269
219	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
220		271
…		…
223	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
226	returned.	277	returned.
227		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
228	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
230		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
231	=cut	289	=cut
232		290
233	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
234		293
235	sub lock_wait($) {	294	sub lock_wait($) {
236	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
237		301
238	# wait for lock, if any	302	# wait for lock, if any
239	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	305	Coro::schedule;
…		…
247		311
248	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
249	lock_wait $key;	313	lock_wait $key;
250		314
251	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
252		317
253	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
256	}	322	}
257	}	323	}
258		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
259	sub freeze_mainloop {	331	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
261		333
262	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
263	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
264	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
265	}	397	}
266		398
267	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
268		400
269	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		406
275	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
276		408
277	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
278		410
279	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
282		415
283	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
286	fast or be very important.	419	fast or be very important.
…		…
289		422
290	sub sync_job(&) {	423	sub sync_job(&) {
291	my ($job) = @_;	424	my ($job) = @_;
292		425
293	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
294	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
296		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
297	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	435	# (but this is cancel-safe)
299	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
300		437
301	my $busy = 1;	438	my $busy = 1;
302	my @res;	439	my @res;
303		440
304	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	443	@res = eval { $job->() };
306	warn $@ if $@;	444	warn $@ if $@;
307	undef $busy;	445	undef $busy;
308	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
309		447
310	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
311	Coro::cede or Event::one_event;	452	Event::one_event;
312	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
313		462
314	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
315	} else {	464	} else {
316	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
317		466
…		…
319	}	468	}
320	}	469	}
321		470
322	=item $coro = cf::async_ext { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
323		472
324	Like async, but this coro is automcatially being canceled when the	473	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	474	extension calling this is being unloaded.
326		475
327	=cut	476	=cut
328		477
329	sub async_ext(&) {	478	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
338		487
339	$coro	488	$coro
340	}	489	}
341		490
342	sub write_runtime {	491	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		492
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
346	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
347		497
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		499
352	aio_fsync $fh	500	sub fork_call(&@) {
353	and return;	501	my ($cb, @args) = @_;
354		502
355	close $fh	503	# we seemingly have to make a local copy of the whole thing,
356	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
357		506
358	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
359	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
360		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
361	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	651	}
363		652
364	=back	653	=back
365		654
366	=cut	655	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	use overload
373	'""' => \&as_string;
374
375	# used to convert map paths into valid unix filenames by repalcing / by ∕
376	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
377
378	sub new {
379	my ($class, $path, $base) = @_;
380
381	$path = $path->as_string if ref $path;
382
383	my $self = bless { }, $class;
384
385	# {... are special paths that are not touched
386	# ?xxx/... are special absolute paths
387	# ?random/... random maps
388	# /! non-realised random map exit
389	# /... normal maps
390	# ~/... per-player maps without a specific player (DO NOT USE)
391	# ~user/... per-player map of a specific user
392
393	$path =~ s/$PATH_SEP/\//go;
394
395	if ($path =~ /^{/) {
396	# fine as it is
397	} elsif ($path =~ s{^\?random/}{}) {
398	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
399	$self->{random} = cf::from_json $data;
400	} else {
401	if ($path =~ s{^~([^/]+)?}{}) {
402	$self->{user_rel} = 1;
403
404	if (defined $1) {
405	$self->{user} = $1;
406	} elsif ($base =~ m{^~([^/]+)/}) {
407	$self->{user} = $1;
408	} else {
409	warn "cannot resolve user-relative path without user <$path,$base>\n";
410	}
411	} elsif ($path =~ /^\//) {
412	# already absolute
413	} else {
414	$base =~ s{[^/]+/?$}{};
415	return $class->new ("$base/$path");
416	}
417
418	for ($path) {
419	redo if s{/\.?/}{/};
420	redo if s{/[^/]+/\.\./}{/};
421	}
422	}
423
424	$self->{path} = $path;
425
426	$self
427	}
428
429	# the name / primary key / in-game path
430	sub as_string {
431	my ($self) = @_;
432
433	$self->{user_rel} ? "~$self->{user}$self->{path}"
434	: $self->{random} ? "?random/$self->{path}"
435	: $self->{path}
436	}
437
438	# the displayed name, this is a one way mapping
439	sub visible_name {
440	my ($self) = @_;
441
442	# if (my $rmp = $self->{random}) {
443	# # todo: be more intelligent about this
444	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
445	# } else {
446	$self->as_string
447	# }
448	}
449
450	# escape the /'s in the path
451	sub _escaped_path {
452	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
453	$path
454	}
455
456	# the original (read-only) location
457	sub load_path {
458	my ($self) = @_;
459
460	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
461	}
462
463	# the temporary/swap location
464	sub save_path {
465	my ($self) = @_;
466
467	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
468	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
469	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
470	}
471
472	# the unique path, might be eq to save_path
473	sub uniq_path {
474	my ($self) = @_;
475
476	$self->{user_rel} || $self->{random}
477	? undef
478	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
479	}
480
481	# return random map parameters, or undef
482	sub random_map_params {
483	my ($self) = @_;
484
485	$self->{random}
486	}
487
488	# this is somewhat ugly, but style maps do need special treatment
489	sub is_style_map {
490	$_[0]{path} =~ m{^/styles/}
491	}
492
493	package cf;
494		656
495	#############################################################################	657	#############################################################################
496		658
497	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
498		660
…		…
500	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
501	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
502		664
503	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
504	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
505	crossfire+).	667	Crossfire TRT).
506		668
507	=over 4	669	=over 4
508		670
509	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
510		672
…		…
624	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
625	our @CB_MAP = ();	787	our @CB_MAP = ();
626		788
627	my %attachment;	789	my %attachment;
628		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
629	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
630	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
631		799
632	use sort 'stable';	800	use sort 'stable';
633		801
…		…
667	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
668		836
669	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
670	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
671	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
672	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
673		841
674	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
675	my $pkg = shift @arg;	843	my $pkg = shift @arg;
676		844
677	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
706	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
707	}	875	}
708		876
709	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
710	} else {	878	} else {
711	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
712	}	880	}
713		881
714	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
715	}	883	}
716		884
…		…
718	if (ref $_[0]) {	886	if (ref $_[0]) {
719	_object_attach @_;	887	_object_attach @_;
720	} else {	888	} else {
721	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
722	}	890	}
		891	_recalc_want;
723	};	892	};
724		893
725	# all those should be optimised	894	# all those should be optimised
726	sub cf::attachable::detach {	895	sub cf::attachable::detach {
727	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
730	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
731	reattach ($obj);	900	reattach ($obj);
732	} else {	901	} else {
733	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
734	}	903	}
		904	_recalc_want;
735	};	905	};
736		906
737	sub cf::attachable::attached {	907	sub cf::attachable::attached {
738	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
739		909
…		…
754	";	924	";
755	die if $@;	925	die if $@;
756	}	926	}
757		927
758	our $override;	928	our $override;
759	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
760		930
761	sub override {	931	sub override {
762	$override = 1;	932	$override = 1;
763	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
764	}	934	}
765		935
766	sub do_invoke {	936	sub do_invoke {
767	my $event = shift;	937	my $event = shift;
768	my $callbacks = shift;	938	my $callbacks = shift;
769		939
770	@invoke_results = ();	940	@INVOKE_RESULTS = ();
771		941
772	local $override;	942	local $override;
773		943
774	for (@$callbacks) {	944	for (@$callbacks) {
775	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
792		962
793	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
794		964
795	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
796	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
797	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
798		968
799	=back	969	=back
800		970
801	=cut	971	=cut
802		972
803	#############################################################################	973	#############################################################################
804	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
805		1017
806	sub reattach {	1018	sub reattach {
807	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
808	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
809		1023
810	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
811		1025
812	@$registry = ();	1026	@$registry = ();
813		1027
…		…
854	sub object_freezer_save {	1068	sub object_freezer_save {
855	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
856		1070
857	sync_job {	1071	sync_job {
858	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
859	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
860	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
861		1076
862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
863	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
864	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
865	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
866	close $fh;	1081	close $fh;
867		1082
868	if (@$objs) {	1083	if (@$objs) {
869	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
870	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
871	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
872	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
873	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
874	close $fh;	1089	close $fh;
875	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
876	}	1091	}
877	} else {	1092	} else {
878	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
884	}	1099	}
885	} else {	1100	} else {
886	aio_unlink $filename;	1101	aio_unlink $filename;
887	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
888	}	1103	}
889	}	1104	};
890	}	1105	}
891		1106
892	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
893	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
894		1109
…		…
906	or return;	1121	or return;
907		1122
908	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
909	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
910	or return;	1125	or return;
		1126
911	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
912	}	1129	}
913		1130
		1131	utf8::decode (my $decname = $filename);
914	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
915	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
916	return ($data, $av);	1135	($data, $av)
917	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
918		1143
919	#############################################################################	1144	#############################################################################
920	# command handling &c	1145	# command handling &c
921		1146
922	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
935	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
936	}	1161	}
937		1162
938	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
939		1164
940	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
941		1170
942	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
943	called.	1172	called.
944		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
945	=cut	1185	=cut
946		1186
947	sub register_extcmd {	1187	sub register_extcmd {
948	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
949		1189
950	my $caller = caller;
951	#warn "registering extcmd '$name' to '$caller'";
952
953	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
954	}	1197	}
955		1198
956	cf::player->attach (	1199	cf::player->attach (
957	on_command => sub {	1200	on_command => sub {
958	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
967	cf::override;	1210	cf::override;
968	},	1211	},
969	on_extcmd => sub {	1212	on_extcmd => sub {
970	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
971		1214
972	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
973		1216
974	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
975	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
976	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
977	$pl->ext_reply ($msg->{msgid}, %reply);
978	}
979	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
980	} else {	1232	} else {
981	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
982	}	1234	}
983		1235
984	cf::override;	1236	cf::override;
985	},	1237	},
986	);	1238	);
987		1239
988	sub register {
989	my ($base, $pkg) = @_;
990
991	#TODO
992	}
993
994	sub load_extension {
995	my ($path) = @_;
996
997	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
998	my $base = $1;
999	my $pkg = $1;
1000	$pkg =~ s/[^[:word:]]/_/g;
1001	$pkg = "ext::$pkg";
1002
1003	warn "loading '$path' into '$pkg'\n";
1004
1005	open my $fh, "<:utf8", $path
1006	or die "$path: $!";
1007
1008	my $source =
1009	"package $pkg; use strict; use utf8;\n"
1010	. "#line 1 \"$path\"\n{\n"
1011	. (do { local $/; <$fh> })
1012	. "\n};\n1";
1013
1014	eval $source
1015	or die $@ ? "$path: $@\n"
1016	: "extension disabled.\n";
1017
1018	push @exts, $pkg;
1019	$ext_pkg{$base} = $pkg;
1020
1021	# no strict 'refs';
1022	# @{"$pkg\::ISA"} = ext::;
1023
1024	register $base, $pkg;
1025	}
1026
1027	sub unload_extension {
1028	my ($pkg) = @_;
1029
1030	warn "removing extension $pkg\n";
1031
1032	# remove hooks
1033	#TODO
1034	# for my $idx (0 .. $#PLUGIN_EVENT) {
1035	# delete $hook[$idx]{$pkg};
1036	# }
1037
1038	# remove commands
1039	for my $name (keys %COMMAND) {
1040	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1041
1042	if (@cb) {
1043	$COMMAND{$name} = \@cb;
1044	} else {
1045	delete $COMMAND{$name};
1046	}
1047	}
1048
1049	# remove extcmds
1050	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1051	delete $EXTCMD{$name};
1052	}
1053
1054	if (my $cb = $pkg->can ("unload")) {
1055	eval {
1056	$cb->($pkg);
1057	1
1058	} or warn "$pkg unloaded, but with errors: $@";
1059	}
1060
1061	Symbol::delete_package $pkg;
1062	}
1063
1064	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
1065	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
1066	next unless -r $ext;	1245	next unless -r $path;
1067	eval {	1246
1068	load_extension $ext;	1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
1069	1	1304	}
1070	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
1071	}	1310	};
1072	}	1311	}
1073		1312
1074	#############################################################################	1313	#############################################################################
1075	# load/save/clean perl data associated with a map
1076		1314
1077	*cf::mapsupport::on_clean = sub {	1315	=back
1078	my ($map) = @_;
1079
1080	my $path = $map->tmpname;
1081	defined $path or return;
1082
1083	unlink "$path.pst";
1084	};
1085
1086	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1087
1088	#############################################################################
1089		1316
1090	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
1091		1318
1092	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
1093		1320
…		…
1099		1326
1100	=head3 cf::player	1327	=head3 cf::player
1101		1328
1102	=over 4	1329	=over 4
1103		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
1104	=item cf::player::find $login	1345	=item cf::player::find $login
1105		1346
1106	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
1107		1348
1108	=cut	1349	=cut
1109		1350
1110	sub playerdir($) {	1351	sub playerdir($) {
1111	cf::localdir	1352	"$PLAYERDIR/"
1112	. "/"
1113	. cf::playerdir
1114	. "/"
1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1116	}	1354	}
1117		1355
1118	sub path($) {	1356	sub path($) {
1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1120		1358
1121	(playerdir $login) . "/$login.pl"	1359	(playerdir $login) . "/playerdata"
1122	}	1360	}
1123		1361
1124	sub find_active($) {	1362	sub find_active($) {
1125	$cf::PLAYER{$_[0]}	1363	$cf::PLAYER{$_[0]}
1126	and $cf::PLAYER{$_[0]}->active	1364	and $cf::PLAYER{$_[0]}->active
…		…
1129		1367
1130	sub exists($) {	1368	sub exists($) {
1131	my ($login) = @_;	1369	my ($login) = @_;
1132		1370
1133	$cf::PLAYER{$login}	1371	$cf::PLAYER{$login}
1134	or cf::sync_job { !aio_stat $login }	1372	or cf::sync_job { !aio_stat path $login }
1135	}	1373	}
1136		1374
1137	sub find($) {	1375	sub find($) {
1138	return $cf::PLAYER{$_[0]} || do {	1376	return $cf::PLAYER{$_[0]} || do {
1139	my $login = $_[0];	1377	my $login = $_[0];
1140		1378
1141	my $guard = cf::lock_acquire "user_find:$login";	1379	my $guard = cf::lock_acquire "user_find:$login";
1142		1380
1143	$cf::PLAYER{$_[0]} || do {	1381	$cf::PLAYER{$_[0]} || do {
1144	my $pl = load_pl path $login	1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
1145	or return;	1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
1146	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1147	}	1397	}
1148	}	1398	}
1149	}	1399	}
1150		1400
…		…
1160		1410
1161	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1162	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1163		1413
1164	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1165	Coro::cede;	1415	cf::cede_to_tick;
1166	}	1416	}
1167		1417
1168	sub new($) {	1418	sub new($) {
1169	my ($login) = @_;	1419	my ($login) = @_;
1170		1420
…		…
1176	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1177		1427
1178	$self	1428	$self
1179	}	1429	}
1180		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
1181	=item $pl->quit_character	1441	=item $pl->quit_character
1182		1442
1183	Nukes the player without looking back. If logged in, the connection will	1443	Nukes the player without looking back. If logged in, the connection will
1184	be destroyed. May block for a long time.	1444	be destroyed. May block for a long time.
1185		1445
1186	=cut	1446	=cut
1187		1447
1188	sub quit_character {	1448	sub quit_character {
1189	my ($pl) = @_;	1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
1190		1452
1191	$pl->{deny_save} = 1;	1453	$pl->{deny_save} = 1;
1192	$pl->password ("*"); # this should lock out the player until we nuked the dir	1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
1193		1455
1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1199	my $path = playerdir $pl;	1461	my $path = playerdir $pl;
1200	my $temp = "$path~$cf::RUNTIME~deleting~";	1462	my $temp = "$path~$cf::RUNTIME~deleting~";
1201	aio_rename $path, $temp;	1463	aio_rename $path, $temp;
1202	delete $cf::PLAYER{$pl->ob->name};	1464	delete $cf::PLAYER{$pl->ob->name};
1203	$pl->destroy;	1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
1204	IO::AIO::aio_rmtree $temp;	1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
1205	}	1487	}
1206		1488
1207	=item cf::player::list_logins	1489	=item cf::player::list_logins
1208		1490
1209	Returns am arrayref of all valid playernames in the system, can take a	1491	Returns am arrayref of all valid playernames in the system, can take a
1210	while and may block, so not sync_job-capable, ever.	1492	while and may block, so not sync_job-capable, ever.
1211		1493
1212	=cut	1494	=cut
1213		1495
1214	sub list_logins {	1496	sub list_logins {
1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1497	my $dirs = aio_readdir $PLAYERDIR
1216	or return [];	1498	or return [];
1217		1499
1218	my @logins;	1500	my @logins;
1219		1501
1220	for my $login (@$dirs) {	1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
1221	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1222	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1223	$buf !~ /^password -------------$/m or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1224		1511
1225	utf8::decode $login;	1512	utf8::decode $login;
1226	push @logins, $login;	1513	push @logins, $login;
1227	}	1514	}
1228		1515
1229	\@logins	1516	\@logins
1230	}	1517	}
1231		1518
1232	=item $player->maps	1519	=item $player->maps
1233		1520
1234	Returns an arrayref of cf::path's of all maps that are private for this	1521	Returns an arrayref of map paths that are private for this
1235	player. May block.	1522	player. May block.
1236		1523
1237	=cut	1524	=cut
1238		1525
1239	sub maps($) {	1526	sub maps($) {
1240	my ($pl) = @_;	1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
1241		1530
1242	my $files = aio_readdir playerdir $pl	1531	my $files = aio_readdir playerdir $pl
1243	or return;	1532	or return;
1244		1533
1245	my @paths;	1534	my @paths;
…		…
1247	for (@$files) {	1536	for (@$files) {
1248	utf8::decode $_;	1537	utf8::decode $_;
1249	next if /\.(?:pl|pst)$/;	1538	next if /\.(?:pl|pst)$/;
1250	next unless /^$PATH_SEP/o;	1539	next unless /^$PATH_SEP/o;
1251		1540
1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1541	push @paths, cf::map::normalise "~$pl/$_";
1253	}	1542	}
1254		1543
1255	\@paths	1544	\@paths
1256	}	1545	}
1257		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	sub expand_cfpod {
		1554	((my $self), (local $_)) = @_;
		1555
		1556	# escape & and <
		1557	s/&/&amp;/g;
		1558	s/(?<![BIUGHT])</&lt;/g;
		1559
		1560	# this is buggy, it needs to properly take care of nested <'s
		1561
		1562	1 while
		1563	# replace B<>, I<>, U<> etc.
		1564	s/B<([^\>]*)>/<b>$1<\/b>/
		1565	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1566	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1567	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1568	# replace G<male|female> tags
		1569	|| s{G<([^>|]*)\|([^>]*)>}{
		1570	$self->gender ? $2 : $1
		1571	}ge
		1572	# replace H<hint text>
		1573	|| s{H<([^\>]*)>}
		1574	{
		1575	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1576	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1577	"")
		1578	[$self->{hintmode}]
		1579	}ge;
		1580
		1581	# create single paragraphs (very hackish)
		1582	s/(?<=\S)\n(?=\w)/ /g;
		1583
		1584	# compress some whitespace
		1585	s/\s+\n/\n/g; # ws line-ends
		1586	s/\n\n+/\n/g; # double lines
		1587	s/^\n+//; # beginning lines
		1588	s/\n+$//; # ending lines
		1589
		1590	$_
		1591	}
		1592
		1593	sub hintmode {
		1594	$_[0]{hintmode} = $_[1] if @_ > 1;
		1595	$_[0]{hintmode}
		1596	}
		1597
1258	=item $player->ext_reply ($msgid, $msgtype, %msg)	1598	=item $player->ext_reply ($msgid, @msg)
1259		1599
1260	Sends an ext reply to the player.	1600	Sends an ext reply to the player.
1261		1601
1262	=cut	1602	=cut
1263		1603
1264	sub ext_reply($$$%) {	1604	sub ext_reply($$@) {
1265	my ($self, $id, %msg) = @_;	1605	my ($self, $id, @msg) = @_;
1266		1606
1267	$msg{msgid} = $id;	1607	$self->ns->ext_reply ($id, @msg)
1268
1269	$self->send ("ext " . cf::to_json \%msg);
1270	}	1608	}
1271		1609
1272	package cf;	1610	=item $player->ext_msg ($type, @msg)
		1611
		1612	Sends an ext event to the client.
		1613
		1614	=cut
		1615
		1616	sub ext_msg($$@) {
		1617	my ($self, $type, @msg) = @_;
		1618
		1619	$self->ns->ext_msg ($type, @msg);
		1620	}
		1621
		1622	=head3 cf::region
		1623
		1624	=over 4
		1625
		1626	=cut
		1627
		1628	package cf::region;
		1629
		1630	=item cf::region::find_by_path $path
		1631
		1632	Tries to decuce the likely region for a map knowing only its path.
		1633
		1634	=cut
		1635
		1636	sub find_by_path($) {
		1637	my ($path) = @_;
		1638
		1639	my ($match, $specificity);
		1640
		1641	for my $region (list) {
		1642	if ($region->{match} && $path =~ $region->{match}) {
		1643	($match, $specificity) = ($region, $region->specificity)
		1644	if $region->specificity > $specificity;
		1645	}
		1646	}
		1647
		1648	$match
		1649	}
1273		1650
1274	=back	1651	=back
1275
1276		1652
1277	=head3 cf::map	1653	=head3 cf::map
1278		1654
1279	=over 4	1655	=over 4
1280		1656
…		…
1283	package cf::map;	1659	package cf::map;
1284		1660
1285	use Fcntl;	1661	use Fcntl;
1286	use Coro::AIO;	1662	use Coro::AIO;
1287		1663
		1664	use overload
		1665	'""' => \&as_string,
		1666	fallback => 1;
		1667
1288	our $MAX_RESET = 3600;	1668	our $MAX_RESET = 3600;
1289	our $DEFAULT_RESET = 3000;	1669	our $DEFAULT_RESET = 3000;
1290		1670
1291	sub generate_random_map {	1671	sub generate_random_map {
1292	my ($path, $rmp) = @_;	1672	my ($self, $rmp) = @_;
1293
1294	# mit "rum" bekleckern, nicht	1673	# mit "rum" bekleckern, nicht
1295	cf::map::_create_random_map	1674	$self->_create_random_map (
1296	$path,
1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1675	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1676	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1677	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1300	$rmp->{exit_on_final_map},	1678	$rmp->{exit_on_final_map},
1301	$rmp->{xsize}, $rmp->{ysize},	1679	$rmp->{xsize}, $rmp->{ysize},
1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1680	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1681	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1682	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1683	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1684	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1307	(cf::region::find $rmp->{region})	1685	(cf::region::find $rmp->{region}), $rmp->{custom}
		1686	)
		1687	}
		1688
		1689	=item cf::map->register ($regex, $prio)
		1690
		1691	Register a handler for the map path matching the given regex at the
		1692	givne priority (higher is better, built-in handlers have priority 0, the
		1693	default).
		1694
		1695	=cut
		1696
		1697	sub register {
		1698	my (undef, $regex, $prio) = @_;
		1699	my $pkg = caller;
		1700
		1701	no strict;
		1702	push @{"$pkg\::ISA"}, __PACKAGE__;
		1703
		1704	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1705	}
		1706
		1707	# also paths starting with '/'
		1708	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1709
		1710	sub thawer_merge {
		1711	my ($self, $merge) = @_;
		1712
		1713	# we have to keep some variables in memory intact
		1714	local $self->{path};
		1715	local $self->{load_path};
		1716
		1717	$self->SUPER::thawer_merge ($merge);
		1718	}
		1719
		1720	sub normalise {
		1721	my ($path, $base) = @_;
		1722
		1723	$path = "$path"; # make sure its a string
		1724
		1725	$path =~ s/\.map$//;
		1726
		1727	# map plan:
		1728	#
		1729	# /! non-realised random map exit (special hack!)
		1730	# {... are special paths that are not being touched
		1731	# ?xxx/... are special absolute paths
		1732	# ?random/... random maps
		1733	# /... normal maps
		1734	# ~user/... per-player map of a specific user
		1735
		1736	$path =~ s/$PATH_SEP/\//go;
		1737
		1738	# treat it as relative path if it starts with
		1739	# something that looks reasonable
		1740	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1741	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1742
		1743	$base =~ s{[^/]+/?$}{};
		1744	$path = "$base/$path";
		1745	}
		1746
		1747	for ($path) {
		1748	redo if s{//}{/};
		1749	redo if s{/\.?/}{/};
		1750	redo if s{/[^/]+/\.\./}{/};
		1751	}
		1752
		1753	$path
		1754	}
		1755
		1756	sub new_from_path {
		1757	my (undef, $path, $base) = @_;
		1758
		1759	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1760
		1761	$path = normalise $path, $base;
		1762
		1763	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1764	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1765	my $self = bless cf::map::new, $pkg;
		1766	$self->{path} = $path; $self->path ($path);
		1767	$self->init; # pass $1 etc.
		1768	return $self;
		1769	}
		1770	}
		1771
		1772	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1773	()
		1774	}
		1775
		1776	sub init {
		1777	my ($self) = @_;
		1778
		1779	$self
		1780	}
		1781
		1782	sub as_string {
		1783	my ($self) = @_;
		1784
		1785	"$self->{path}"
		1786	}
		1787
		1788	# the displayed name, this is a one way mapping
		1789	sub visible_name {
		1790	&as_string
		1791	}
		1792
		1793	# the original (read-only) location
		1794	sub load_path {
		1795	my ($self) = @_;
		1796
		1797	"$MAPDIR/$self->{path}.map"
		1798	}
		1799
		1800	# the temporary/swap location
		1801	sub save_path {
		1802	my ($self) = @_;
		1803
		1804	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1805	"$TMPDIR/$path.map"
		1806	}
		1807
		1808	# the unique path, undef == no special unique path
		1809	sub uniq_path {
		1810	my ($self) = @_;
		1811
		1812	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1813	"$UNIQUEDIR/$path"
1308	}	1814	}
1309		1815
1310	# and all this just because we cannot iterate over	1816	# and all this just because we cannot iterate over
1311	# all maps in C++...	1817	# all maps in C++...
1312	sub change_all_map_light {	1818	sub change_all_map_light {
…		…
1314		1820
1315	$_->change_map_light ($change)	1821	$_->change_map_light ($change)
1316	for grep $_->outdoor, values %cf::MAP;	1822	for grep $_->outdoor, values %cf::MAP;
1317	}	1823	}
1318		1824
		1825	sub decay_objects {
		1826	my ($self) = @_;
		1827
		1828	return if $self->{deny_reset};
		1829
		1830	$self->do_decay_objects;
		1831	}
		1832
		1833	sub unlink_save {
		1834	my ($self) = @_;
		1835
		1836	utf8::encode (my $save = $self->save_path);
		1837	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1839	}
		1840
1319	sub try_load_header($) {	1841	sub load_header_from($) {
1320	my ($path) = @_;	1842	my ($self, $path) = @_;
1321		1843
1322	utf8::encode $path;	1844	utf8::encode $path;
1323	aio_open $path, O_RDONLY, 0	1845	my $f = new_from_file cf::object::thawer $path
1324	or return;	1846	or return;
1325		1847
1326	my $map = cf::map::new	1848	$self->_load_header ($f)
1327	or return;	1849	or return;
1328		1850
1329	# for better error messages only, will be overwritten	1851	local $MAP_LOADING{$self->{path}} = $self;
1330	$map->path ($path);	1852	$f->resolve_delayed_derefs;
1331		1853
1332	$map->load_header ($path)	1854	$self->{load_path} = $path;
		1855
		1856	1
		1857	}
		1858
		1859	sub load_header_orig {
		1860	my ($self) = @_;
		1861
		1862	$self->load_header_from ($self->load_path)
		1863	}
		1864
		1865	sub load_header_temp {
		1866	my ($self) = @_;
		1867
		1868	$self->load_header_from ($self->save_path)
		1869	}
		1870
		1871	sub prepare_temp {
		1872	my ($self) = @_;
		1873
		1874	$self->last_access ((delete $self->{last_access})
		1875	|| $cf::RUNTIME); #d#
		1876	# safety
		1877	$self->{instantiate_time} = $cf::RUNTIME
		1878	if $self->{instantiate_time} > $cf::RUNTIME;
		1879	}
		1880
		1881	sub prepare_orig {
		1882	my ($self) = @_;
		1883
		1884	$self->{load_original} = 1;
		1885	$self->{instantiate_time} = $cf::RUNTIME;
		1886	$self->last_access ($cf::RUNTIME);
		1887	$self->instantiate;
		1888	}
		1889
		1890	sub load_header {
		1891	my ($self) = @_;
		1892
		1893	if ($self->load_header_temp) {
		1894	$self->prepare_temp;
		1895	} else {
		1896	$self->load_header_orig
1333	or return;	1897	or return;
		1898	$self->prepare_orig;
		1899	}
1334		1900
1335	$map->{load_path} = $path;	1901	$self->{deny_reset} = 1
		1902	if $self->no_reset;
1336		1903
1337	$map	1904	$self->default_region (cf::region::find_by_path $self->{path})
		1905	unless $self->default_region;
		1906
		1907	1
1338	}	1908	}
1339		1909
1340	sub find;	1910	sub find;
1341	sub find {	1911	sub find {
1342	my ($path, $origin) = @_;	1912	my ($path, $origin) = @_;
1343		1913
1344	#warn "find<$path,$origin>\n";#d#
1345
1346	$path = new cf::path $path, $origin && $origin->path;	1914	$path = normalise $path, $origin && $origin->path;
1347	my $key = $path->as_string;
1348		1915
		1916	cf::lock_wait "map_data:$path";#d#remove
1349	cf::lock_wait "map_find:$key";	1917	cf::lock_wait "map_find:$path";
1350		1918
1351	$cf::MAP{$key} || do {	1919	$cf::MAP{$path} || do {
1352	my $guard = cf::lock_acquire "map_find:$key";	1920	my $guard1 = cf::lock_acquire "map_find:$path";
		1921	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1353		1922
1354	# do it the slow way	1923	my $map = new_from_path cf::map $path
1355	my $map = try_load_header $path->save_path;
1356
1357	Coro::cede;
1358
1359	if ($map) {
1360	$map->last_access ((delete $map->{last_access})
1361	|| $cf::RUNTIME); #d#
1362	# safety
1363	$map->{instantiate_time} = $cf::RUNTIME
1364	if $map->{instantiate_time} > $cf::RUNTIME;
1365	} else {
1366	if (my $rmp = $path->random_map_params) {
1367	$map = generate_random_map $key, $rmp;
1368	} else {
1369	$map = try_load_header $path->load_path;
1370	}
1371
1372	$map or return;	1924	or return;
1373		1925
1374	$map->{load_original} = 1;
1375	$map->{instantiate_time} = $cf::RUNTIME;
1376	$map->last_access ($cf::RUNTIME);
1377	$map->instantiate;
1378
1379	# per-player maps become, after loading, normal maps
1380	$map->per_player (0) if $path->{user_rel};
1381	}
1382
1383	$map->path ($key);
1384	$map->{path} = $path;
1385	$map->{last_save} = $cf::RUNTIME;	1926	$map->{last_save} = $cf::RUNTIME;
1386		1927
1387	Coro::cede;	1928	$map->load_header
		1929	or return;
1388		1930
1389	if ($map->should_reset) {	1931	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1932	# doing this can freeze the server in a sync job, obviously
		1933	#$cf::WAIT_FOR_TICK->wait;
		1934	undef $guard1;
		1935	undef $guard2;
1390	$map->reset;	1936	$map->reset;
1391	undef $guard;
1392	$map = find $path	1937	return find $path;
1393	or return;
1394	}	1938	}
1395		1939
1396	$cf::MAP{$key} = $map	1940	$cf::MAP{$path} = $map
1397	}	1941	}
1398	}	1942	}
		1943
		1944	sub pre_load { }
		1945	sub post_load { }
1399		1946
1400	sub load {	1947	sub load {
1401	my ($self) = @_;	1948	my ($self) = @_;
1402		1949
		1950	local $self->{deny_reset} = 1; # loading can take a long time
		1951
1403	my $path = $self->{path};	1952	my $path = $self->{path};
		1953
		1954	{
1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1955	my $guard = cf::lock_acquire "map_data:$path";
1405		1956
		1957	return unless $self->valid;
1406	return if $self->in_memory != cf::MAP_SWAPPED;	1958	return unless $self->in_memory == cf::MAP_SWAPPED;
1407		1959
1408	$self->in_memory (cf::MAP_LOADING);	1960	$self->in_memory (cf::MAP_LOADING);
1409		1961
1410	$self->alloc;	1962	$self->alloc;
1411	$self->load_objects ($self->{load_path}, 1)	1963
		1964	$self->pre_load;
		1965	cf::cede_to_tick;
		1966
		1967	my $f = new_from_file cf::object::thawer $self->{load_path};
		1968	$f->skip_block;
		1969	$self->_load_objects ($f)
1412	or return;	1970	or return;
1413		1971
1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1972	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1415	if delete $self->{load_original};	1973	if delete $self->{load_original};
1416		1974
1417	if (my $uniq = $path->uniq_path) {	1975	if (my $uniq = $self->uniq_path) {
1418	utf8::encode $uniq;	1976	utf8::encode $uniq;
1419	if (aio_open $uniq, O_RDONLY, 0) {	1977	unless (aio_stat $uniq) {
		1978	if (my $f = new_from_file cf::object::thawer $uniq) {
1420	$self->clear_unique_items;	1979	$self->clear_unique_items;
1421	$self->load_objects ($uniq, 0);	1980	$self->_load_objects ($f);
		1981	$f->resolve_delayed_derefs;
		1982	}
1422	}	1983	}
1423	}	1984	}
1424		1985
1425	Coro::cede;	1986	$f->resolve_delayed_derefs;
1426		1987
		1988	cf::cede_to_tick;
1427	# now do the right thing for maps	1989	# now do the right thing for maps
1428	$self->link_multipart_objects;	1990	$self->link_multipart_objects;
1429
1430	if ($self->{path}->is_style_map) {
1431	$self->{deny_save} = 1;
1432	$self->{deny_reset} = 1;
1433	} else {
1434	$self->fix_auto_apply;
1435	$self->decay_objects;
1436	$self->update_buttons;
1437	$self->set_darkness_map;
1438	$self->difficulty ($self->estimate_difficulty)	1991	$self->difficulty ($self->estimate_difficulty)
1439	unless $self->difficulty;	1992	unless $self->difficulty;
		1993	cf::cede_to_tick;
		1994
		1995	unless ($self->{deny_activate}) {
		1996	$self->decay_objects;
		1997	$self->fix_auto_apply;
		1998	$self->update_buttons;
		1999	cf::cede_to_tick;
		2000	$self->set_darkness_map;
		2001	cf::cede_to_tick;
1440	$self->activate;	2002	$self->activate;
1441	}	2003	}
1442		2004
1443	Coro::cede;	2005	$self->{last_save} = $cf::RUNTIME;
		2006	$self->last_access ($cf::RUNTIME);
1444		2007
1445	$self->in_memory (cf::MAP_IN_MEMORY);	2008	$self->in_memory (cf::MAP_IN_MEMORY);
		2009	}
		2010
		2011	$self->post_load;
		2012	}
		2013
		2014	sub customise_for {
		2015	my ($self, $ob) = @_;
		2016
		2017	return find "~" . $ob->name . "/" . $self->{path}
		2018	if $self->per_player;
		2019
		2020	# return find "?party/" . $ob->name . "/" . $self->{path}
		2021	# if $self->per_party;
		2022
		2023	$self
1446	}	2024	}
1447		2025
1448	# find and load all maps in the 3x3 area around a map	2026	# find and load all maps in the 3x3 area around a map
1449	sub load_diag {	2027	sub load_neighbours {
1450	my ($map) = @_;	2028	my ($map) = @_;
1451		2029
1452	my @diag; # diagonal neighbours	2030	my @neigh; # diagonal neighbours
1453		2031
1454	for (0 .. 3) {	2032	for (0 .. 3) {
1455	my $neigh = $map->tile_path ($_)	2033	my $neigh = $map->tile_path ($_)
1456	or next;	2034	or next;
1457	$neigh = find $neigh, $map	2035	$neigh = find $neigh, $map
1458	or next;	2036	or next;
1459	$neigh->load;	2037	$neigh->load;
1460		2038
		2039	push @neigh,
1461	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2040	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1462	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2041	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1463	}	2042	}
1464		2043
1465	for (@diag) {	2044	for (grep defined $_->[0], @neigh) {
		2045	my ($path, $origin) = @$_;
1466	my $neigh = find @$_	2046	my $neigh = find $path, $origin
1467	or next;	2047	or next;
1468	$neigh->load;	2048	$neigh->load;
1469	}	2049	}
1470	}	2050	}
1471		2051
…		…
1476	}	2056	}
1477		2057
1478	sub do_load_sync {	2058	sub do_load_sync {
1479	my ($map) = @_;	2059	my ($map) = @_;
1480		2060
		2061	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2062	if $Coro::current == $Coro::main;
		2063
1481	cf::sync_job { $map->load };	2064	cf::sync_job { $map->load };
1482	}	2065	}
1483		2066
1484	our %MAP_PREFETCH;	2067	our %MAP_PREFETCH;
		2068	our $MAP_PREFETCHER = undef;
		2069
		2070	sub find_async {
		2071	my ($path, $origin, $load) = @_;
		2072
		2073	$path = normalise $path, $origin && $origin->{path};
		2074
		2075	if (my $map = $cf::MAP{$path}) {
		2076	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2077	}
		2078
		2079	$MAP_PREFETCH{$path} |= $load;
		2080
1485	our $MAP_PREFETCHER = Coro::async {	2081	$MAP_PREFETCHER ||= cf::async {
1486	while () {	2082	$Coro::current->{desc} = "map prefetcher";
		2083
1487	while (%MAP_PREFETCH) {	2084	while (%MAP_PREFETCH) {
1488	my $key = each %MAP_PREFETCH	2085	while (my ($k, $v) = each %MAP_PREFETCH) {
1489	or next;	2086	if (my $map = find $k) {
		2087	$map->load if $v;
		2088	}
		2089
1490	my $path = delete $MAP_PREFETCH{$key};	2090	delete $MAP_PREFETCH{$k};
1491
1492	my $map = find $path
1493	or next;
1494	$map->load;
1495	}	2091	}
1496	Coro::schedule;	2092	}
		2093	undef $MAP_PREFETCHER;
1497	}	2094	};
1498	};
1499
1500	sub find_async {
1501	my ($path, $origin) = @_;
1502
1503	$path = new cf::path $path, $origin && $origin->path;
1504	my $key = $path->as_string;
1505
1506	if (my $map = $cf::MAP{$key}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1508	}
1509
1510	$MAP_PREFETCH{$key} = $path;
1511	$MAP_PREFETCHER->ready;	2095	$MAP_PREFETCHER->prio (6);
1512		2096
1513	()	2097	()
1514	}	2098	}
1515		2099
1516	sub save {	2100	sub save {
1517	my ($self) = @_;	2101	my ($self) = @_;
1518		2102
1519	my $lock = cf::lock_acquire "map_data:" . $self->path;	2103	my $lock = cf::lock_acquire "map_data:$self->{path}";
1520		2104
1521	$self->{last_save} = $cf::RUNTIME;	2105	$self->{last_save} = $cf::RUNTIME;
1522		2106
1523	return unless $self->dirty;	2107	return unless $self->dirty;
1524		2108
1525	my $save = $self->{path}->save_path; utf8::encode $save;	2109	my $save = $self->save_path; utf8::encode $save;
1526	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2110	my $uniq = $self->uniq_path; utf8::encode $uniq;
1527		2111
1528	$self->{load_path} = $save;	2112	$self->{load_path} = $save;
1529		2113
1530	return if $self->{deny_save};	2114	return if $self->{deny_save};
1531		2115
1532	local $self->{last_access} = $self->last_access;#d#	2116	local $self->{last_access} = $self->last_access;#d#
1533		2117
1534	cf::async {	2118	cf::async {
		2119	$Coro::current->{desc} = "map player save";
1535	$_->contr->save for $self->players;	2120	$_->contr->save for $self->players;
1536	};	2121	};
1537		2122
1538	if ($uniq) {	2123	if ($uniq) {
1539	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2124	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1540	$self->save_objects ($uniq, cf::IO_UNIQUES);	2125	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1541	} else {	2126	} else {
1542	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2127	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1543	}	2128	}
1544	}	2129	}
1545		2130
1546	sub swap_out {	2131	sub swap_out {
1547	my ($self) = @_;	2132	my ($self) = @_;
1548		2133
1549	# save first because save cedes	2134	# save first because save cedes
1550	$self->save;	2135	$self->save;
1551		2136
1552	my $lock = cf::lock_acquire "map_data:" . $self->path;	2137	my $lock = cf::lock_acquire "map_data:$self->{path}";
1553		2138
1554	return if $self->players;	2139	return if $self->players;
1555	return if $self->in_memory != cf::MAP_IN_MEMORY;	2140	return if $self->in_memory != cf::MAP_IN_MEMORY;
1556	return if $self->{deny_save};	2141	return if $self->{deny_save};
1557		2142
		2143	$self->in_memory (cf::MAP_SWAPPED);
		2144
		2145	$self->deactivate;
		2146	$_->clear_links_to ($self) for values %cf::MAP;
1558	$self->clear;	2147	$self->clear;
1559	$self->in_memory (cf::MAP_SWAPPED);
1560	}	2148	}
1561		2149
1562	sub reset_at {	2150	sub reset_at {
1563	my ($self) = @_;	2151	my ($self) = @_;
1564		2152
1565	# TODO: safety, remove and allow resettable per-player maps	2153	# TODO: safety, remove and allow resettable per-player maps
1566	return 1e99 if $self->{path}{user_rel};
1567	return 1e99 if $self->{deny_reset};	2154	return 1e99 if $self->{deny_reset};
1568		2155
1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2156	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2157	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1571		2158
…		…
1576	my ($self) = @_;	2163	my ($self) = @_;
1577		2164
1578	$self->reset_at <= $cf::RUNTIME	2165	$self->reset_at <= $cf::RUNTIME
1579	}	2166	}
1580		2167
1581	sub unlink_save {
1582	my ($self) = @_;
1583
1584	utf8::encode (my $save = $self->{path}->save_path);
1585	aioreq_pri 3; IO::AIO::aio_unlink $save;
1586	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1587	}
1588
1589	sub rename {
1590	my ($self, $new_path) = @_;
1591
1592	$self->unlink_save;
1593
1594	delete $cf::MAP{$self->path};
1595	$self->{path} = new cf::path $new_path;
1596	$self->path ($self->{path}->as_string);
1597	$cf::MAP{$self->path} = $self;
1598
1599	$self->save;
1600	}
1601
1602	sub reset {	2168	sub reset {
1603	my ($self) = @_;	2169	my ($self) = @_;
1604		2170
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2171	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2172
1607	return if $self->players;	2173	return if $self->players;
1608	return if $self->{path}{user_rel};#d#
1609		2174
1610	warn "resetting map ", $self->path;#d#	2175	warn "resetting map ", $self->path;
		2176
		2177	$self->in_memory (cf::MAP_SWAPPED);
		2178
		2179	# need to save uniques path
		2180	unless ($self->{deny_save}) {
		2181	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2182
		2183	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2184	if $uniq;
		2185	}
1611		2186
1612	delete $cf::MAP{$self->path};	2187	delete $cf::MAP{$self->path};
1613		2188
		2189	$self->deactivate;
1614	$_->clear_links_to ($self) for values %cf::MAP;	2190	$_->clear_links_to ($self) for values %cf::MAP;
		2191	$self->clear;
1615		2192
1616	$self->unlink_save;	2193	$self->unlink_save;
1617	$self->destroy;	2194	$self->destroy;
1618	}	2195	}
1619		2196
1620	my $nuke_counter = "aaaa";	2197	my $nuke_counter = "aaaa";
1621		2198
1622	sub nuke {	2199	sub nuke {
1623	my ($self) = @_;	2200	my ($self) = @_;
1624		2201
		2202	{
		2203	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2204
		2205	delete $cf::MAP{$self->path};
		2206
		2207	$self->unlink_save;
		2208
		2209	bless $self, "cf::map";
		2210	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2211	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2212	$self->reset_timeout (1);
1627	$self->rename ("{nuke}/" . ($nuke_counter++));	2213	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2214
		2215	$cf::MAP{$self->path} = $self;
		2216	}
		2217
1628	$self->reset; # polite request, might not happen	2218	$self->reset; # polite request, might not happen
1629	}	2219	}
1630		2220
1631	sub customise_for {	2221	=item $maps = cf::map::tmp_maps
1632	my ($map, $ob) = @_;
1633		2222
1634	if ($map->per_player) {	2223	Returns an arrayref with all map paths of currently instantiated and saved
1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2224	maps. May block.
		2225
		2226	=cut
		2227
		2228	sub tmp_maps() {
1636	}	2229	[
		2230	map {
		2231	utf8::decode $_;
		2232	/\.map$/
		2233	? normalise $_
		2234	: ()
		2235	} @{ aio_readdir $TMPDIR or [] }
		2236	]
		2237	}
1637		2238
1638	$map	2239	=item $maps = cf::map::random_maps
		2240
		2241	Returns an arrayref with all map paths of currently instantiated and saved
		2242	random maps. May block.
		2243
		2244	=cut
		2245
		2246	sub random_maps() {
		2247	[
		2248	map {
		2249	utf8::decode $_;
		2250	/\.map$/
		2251	? normalise "?random/$_"
		2252	: ()
		2253	} @{ aio_readdir $RANDOMDIR or [] }
		2254	]
1639	}	2255	}
1640		2256
1641	=item cf::map::unique_maps	2257	=item cf::map::unique_maps
1642		2258
1643	Returns an arrayref of cf::path's of all shared maps that have	2259	Returns an arrayref of paths of all shared maps that have
1644	instantiated unique items. May block.	2260	instantiated unique items. May block.
1645		2261
1646	=cut	2262	=cut
1647		2263
1648	sub unique_maps() {	2264	sub unique_maps() {
1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2265	[
1650	or return;	2266	map {
1651
1652	my @paths;
1653
1654	for (@$files) {
1655	utf8::decode $_;	2267	utf8::decode $_;
1656	next if /\.pst$/;	2268	/\.map$/
1657	next unless /^$PATH_SEP/o;	2269	? normalise $_
1658		2270	: ()
1659	push @paths, new cf::path $_;	2271	} @{ aio_readdir $UNIQUEDIR or [] }
1660	}	2272	]
1661
1662	\@paths
1663	}	2273	}
1664		2274
1665	package cf;	2275	package cf;
1666		2276
1667	=back	2277	=back
…		…
1685	map { $_, inv_recursive_ $_->inv } @_	2295	map { $_, inv_recursive_ $_->inv } @_
1686	}	2296	}
1687		2297
1688	sub inv_recursive {	2298	sub inv_recursive {
1689	inv_recursive_ inv $_[0]	2299	inv_recursive_ inv $_[0]
		2300	}
		2301
		2302	=item $ref = $ob->ref
		2303
		2304	creates and returns a persistent reference to an objetc that can be stored as a string.
		2305
		2306	=item $ob = cf::object::deref ($refstring)
		2307
		2308	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2309	even if the object actually exists. May block.
		2310
		2311	=cut
		2312
		2313	sub deref {
		2314	my ($ref) = @_;
		2315
		2316	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2317	my ($uuid, $name) = ($1, $2);
		2318	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2319	or return;
		2320	$pl->ob->uuid eq $uuid
		2321	or return;
		2322
		2323	$pl->ob
		2324	} else {
		2325	warn "$ref: cannot resolve object reference\n";
		2326	undef
		2327	}
1690	}	2328	}
1691		2329
1692	package cf;	2330	package cf;
1693		2331
1694	=back	2332	=back
…		…
1713		2351
1714	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2352	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1715		2353
1716	if ($self->{record_replies}) {	2354	if ($self->{record_replies}) {
1717	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2355	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2356
1718	} else {	2357	} else {
		2358	my $pl = $self->contr;
		2359
		2360	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2361	my $dialog = $pl->{npc_dialog};
		2362	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2363
		2364	} else {
1719	$msg = $npc->name . " says: $msg" if $npc;	2365	$msg = $npc->name . " says: $msg" if $npc;
1720	$self->message ($msg, $flags);	2366	$self->message ($msg, $flags);
		2367	}
1721	}	2368	}
		2369	}
		2370
		2371	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2372
		2373	=cut
		2374
		2375	sub cf::object::send_msg {
		2376	my $pl = shift->contr
		2377	or return;
		2378	$pl->send_msg (@_);
1722	}	2379	}
1723		2380
1724	=item $player_object->may ("access")	2381	=item $player_object->may ("access")
1725		2382
1726	Returns wether the given player is authorized to access resource "access"	2383	Returns wether the given player is authorized to access resource "access"
…		…
1739		2396
1740	=item $player_object->enter_link	2397	=item $player_object->enter_link
1741		2398
1742	Freezes the player and moves him/her to a special map (C<{link}>).	2399	Freezes the player and moves him/her to a special map (C<{link}>).
1743		2400
1744	The player should be reaosnably safe there for short amounts of time. You	2401	The player should be reasonably safe there for short amounts of time. You
1745	I<MUST> call C<leave_link> as soon as possible, though.	2402	I<MUST> call C<leave_link> as soon as possible, though.
1746		2403
		2404	Will never block.
		2405
1747	=item $player_object->leave_link ($map, $x, $y)	2406	=item $player_object->leave_link ($map, $x, $y)
1748		2407
1749	Moves the player out of the specila link map onto the given map. If the	2408	Moves the player out of the special C<{link}> map onto the specified
1750	map is not valid (or omitted), the player will be moved back to the	2409	map. If the map is not valid (or omitted), the player will be moved back
1751	location he/she was before the call to C<enter_link>, or, if that fails,	2410	to the location he/she was before the call to C<enter_link>, or, if that
1752	to the emergency map position.	2411	fails, to the emergency map position.
1753		2412
1754	Might block.	2413	Might block.
1755		2414
1756	=cut	2415	=cut
		2416
		2417	sub link_map {
		2418	unless ($LINK_MAP) {
		2419	$LINK_MAP = cf::map::find "{link}"
		2420	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2421	$LINK_MAP->load;
		2422	}
		2423
		2424	$LINK_MAP
		2425	}
1757		2426
1758	sub cf::object::player::enter_link {	2427	sub cf::object::player::enter_link {
1759	my ($self) = @_;	2428	my ($self) = @_;
1760		2429
1761	$self->deactivate_recursive;	2430	$self->deactivate_recursive;
1762		2431
1763	return if $self->map == $LINK_MAP;	2432	return if UNIVERSAL::isa $self->map, "ext::map_link";
1764		2433
1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2434	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1766	if $self->map;	2435	if $self->map && $self->map->{path} ne "{link}";
1767		2436
1768	$self->enter_map ($LINK_MAP, 20, 20);	2437	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1769	}	2438	}
1770		2439
1771	sub cf::object::player::leave_link {	2440	sub cf::object::player::leave_link {
1772	my ($self, $map, $x, $y) = @_;	2441	my ($self, $map, $x, $y) = @_;
		2442
		2443	return unless $self->contr->active;
1773		2444
1774	my $link_pos = delete $self->{_link_pos};	2445	my $link_pos = delete $self->{_link_pos};
1775		2446
1776	unless ($map) {	2447	unless ($map) {
1777	# restore original map position	2448	# restore original map position
…		…
1791	# use -1 or undef as default coordinates, not 0, 0	2462	# use -1 or undef as default coordinates, not 0, 0
1792	($x, $y) = ($map->enter_x, $map->enter_y)	2463	($x, $y) = ($map->enter_x, $map->enter_y)
1793	if $x <=0 && $y <= 0;	2464	if $x <=0 && $y <= 0;
1794		2465
1795	$map->load;	2466	$map->load;
1796	$map->load_diag;	2467	$map->load_neighbours;
1797		2468
1798	return unless $self->contr->active;	2469	return unless $self->contr->active;
1799	$self->activate_recursive;	2470	$self->activate_recursive;
		2471
		2472	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1800	$self->enter_map ($map, $x, $y);	2473	$self->enter_map ($map, $x, $y);
1801	}	2474	}
1802		2475
1803	cf::player->attach (	2476	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1804	on_logout => sub {
1805	my ($pl) = @_;
1806		2477
1807	# abort map switching before logout	2478	Moves the player to the given map-path and coordinates by first freezing
1808	if ($pl->ob->{_link_pos}) {	2479	her, loading and preparing them map, calling the provided $check callback
1809	cf::sync_job {	2480	that has to return the map if sucecssful, and then unfreezes the player on
1810	$pl->ob->leave_link	2481	the new (success) or old (failed) map position. In either case, $done will
1811	};	2482	be called at the end of this process.
1812	}
1813	},
1814	on_login => sub {
1815	my ($pl) = @_;
1816		2483
1817	# try to abort aborted map switching on player login :)
1818	# should happen only on crashes
1819	if ($pl->ob->{_link_pos}) {
1820	$pl->ob->enter_link;
1821	(async {
1822	# we need this sleep as the login has a concurrent enter_exit running
1823	# and this sleep increases chances of the player not ending up in scorn
1824	$pl->ob->reply (undef,
1825	"There was an internal problem at your last logout, "
1826	. "the server will try to bring you to your intended destination in a second.",
1827	cf::NDI_RED);
1828	Coro::Timer::sleep 1;
1829	$pl->ob->leave_link;
1830	})->prio (2);
1831	}
1832	},
1833	);
1834
1835	=item $player_object->goto ($path, $x, $y)
1836
1837	=cut	2484	=cut
		2485
		2486	our $GOTOGEN;
1838		2487
1839	sub cf::object::player::goto {	2488	sub cf::object::player::goto {
1840	my ($self, $path, $x, $y) = @_;	2489	my ($self, $path, $x, $y, $check, $done) = @_;
1841		2490
1842	$path = new cf::path $path;	2491	# do generation counting so two concurrent goto's will be executed in-order
		2492	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1843		2493
1844	$self->enter_link;	2494	$self->enter_link;
1845		2495
1846	(async {	2496	(async {
1847	my $map = cf::map::find $path->as_string;	2497	$Coro::current->{desc} = "player::goto $path $x $y";
		2498
		2499	# *tag paths override both path and x|y
		2500	if ($path =~ /^\*(.*)$/) {
		2501	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2502	my $ob = $obs[rand @obs];
		2503
		2504	# see if we actually can go there
		2505	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2506	$ob = $obs[rand @obs];
		2507	} else {
		2508	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2509	}
		2510	# else put us there anyways for now #d#
		2511
		2512	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2513	} else {
		2514	($path, $x, $y) = (undef, undef, undef);
		2515	}
		2516	}
		2517
		2518	my $map = eval {
		2519	my $map = defined $path ? cf::map::find $path : undef;
		2520
		2521	if ($map) {
1848	$map = $map->customise_for ($self) if $map;	2522	$map = $map->customise_for ($self);
1849		2523	$map = $check->($map) if $check && $map;
1850	# warn "entering ", $map->path, " at ($x, $y)\n"	2524	} else {
1851	# if $map;
1852
1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2525	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2526	}
1854		2527
		2528	$map
		2529	};
		2530
		2531	if ($@) {
		2532	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2533	LOG llevError | logBacktrace, Carp::longmess $@;
		2534	}
		2535
		2536	if ($gen == $self->{_goto_generation}) {
		2537	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2538	$self->leave_link ($map, $x, $y);
		2539	}
		2540
		2541	$done->() if $done;
1856	})->prio (1);	2542	})->prio (1);
1857	}	2543	}
1858		2544
1859	=item $player_object->enter_exit ($exit_object)	2545	=item $player_object->enter_exit ($exit_object)
1860		2546
…		…
1862		2548
1863	sub parse_random_map_params {	2549	sub parse_random_map_params {
1864	my ($spec) = @_;	2550	my ($spec) = @_;
1865		2551
1866	my $rmp = { # defaults	2552	my $rmp = { # defaults
1867	xsize => 10,	2553	xsize => (cf::rndm 15, 40),
1868	ysize => 10,	2554	ysize => (cf::rndm 15, 40),
		2555	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2556	#layout => string,
1869	};	2557	};
1870		2558
1871	for (split /\n/, $spec) {	2559	for (split /\n/, $spec) {
1872	my ($k, $v) = split /\s+/, $_, 2;	2560	my ($k, $v) = split /\s+/, $_, 2;
1873		2561
…		…
1877	$rmp	2565	$rmp
1878	}	2566	}
1879		2567
1880	sub prepare_random_map {	2568	sub prepare_random_map {
1881	my ($exit) = @_;	2569	my ($exit) = @_;
		2570
		2571	my $guard = cf::lock_acquire "exit_prepare:$exit";
1882		2572
1883	# all this does is basically replace the /! path by	2573	# all this does is basically replace the /! path by
1884	# a new random map path (?random/...) with a seed	2574	# a new random map path (?random/...) with a seed
1885	# that depends on the exit object	2575	# that depends on the exit object
1886		2576
1887	my $rmp = parse_random_map_params $exit->msg;	2577	my $rmp = parse_random_map_params $exit->msg;
1888		2578
1889	if ($exit->map) {	2579	if ($exit->map) {
1890	$rmp->{region} = $exit->map->region_name;	2580	$rmp->{region} = $exit->region->name;
1891	$rmp->{origin_map} = $exit->map->path;	2581	$rmp->{origin_map} = $exit->map->path;
1892	$rmp->{origin_x} = $exit->x;	2582	$rmp->{origin_x} = $exit->x;
1893	$rmp->{origin_y} = $exit->y;	2583	$rmp->{origin_y} = $exit->y;
1894	}	2584	}
1895		2585
1896	$rmp->{random_seed} ||= $exit->random_seed;	2586	$rmp->{random_seed} ||= $exit->random_seed;
1897		2587
1898	my $data = cf::to_json $rmp;	2588	my $data = cf::to_json $rmp;
1899	my $md5 = Digest::MD5::md5_hex $data;	2589	my $md5 = Digest::MD5::md5_hex $data;
		2590	my $meta = "$RANDOMDIR/$md5.meta";
1900		2591
1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2592	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1902	aio_write $fh, 0, (length $data), $data, 0;	2593	aio_write $fh, 0, (length $data), $data, 0;
		2594	undef $fh;
		2595	aio_rename "$meta~", $meta;
1903		2596
1904	$exit->slaying ("?random/$md5");	2597	$exit->slaying ("?random/$md5");
1905	$exit->msg (undef);	2598	$exit->msg (undef);
1906	}	2599	}
1907	}	2600	}
…		…
1909	sub cf::object::player::enter_exit {	2602	sub cf::object::player::enter_exit {
1910	my ($self, $exit) = @_;	2603	my ($self, $exit) = @_;
1911		2604
1912	return unless $self->type == cf::PLAYER;	2605	return unless $self->type == cf::PLAYER;
1913		2606
		2607	if ($exit->slaying eq "/!") {
		2608	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2609	# the problem is that $exit might not survive long enough
		2610	# so it needs to be done right now, right here
		2611	cf::sync_job { prepare_random_map $exit };
		2612	}
		2613
		2614	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2615	my $hp = $exit->stats->hp;
		2616	my $sp = $exit->stats->sp;
		2617
1914	$self->enter_link;	2618	$self->enter_link;
1915		2619
		2620	# if exit is damned, update players death & WoR home-position
		2621	$self->contr->savebed ($slaying, $hp, $sp)
		2622	if $exit->flag (FLAG_DAMNED);
		2623
1916	(async {	2624	(async {
		2625	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2626
1917	$self->deactivate_recursive; # just to be sure	2627	$self->deactivate_recursive; # just to be sure
1918	unless (eval {	2628	unless (eval {
1919	prepare_random_map $exit	2629	$self->goto ($slaying, $hp, $sp);
1920	if $exit->slaying eq "/!";
1921
1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1924		2630
1925	1;	2631	1;
1926	}) {	2632	}) {
1927	$self->message ("Something went wrong deep within the crossfire server. "	2633	$self->message ("Something went wrong deep within the crossfire server. "
1928	. "I'll try to bring you back to the map you were before. "	2634	. "I'll try to bring you back to the map you were before. "
1929	. "Please report this to the dungeon master!",	2635	. "Please report this to the dungeon master!",
1930	cf::NDI_UNIQUE | cf::NDI_RED);	2636	cf::NDI_UNIQUE | cf::NDI_RED);
1931		2637
1932	warn "ERROR in enter_exit: $@";	2638	warn "ERROR in enter_exit: $@";
1933	$self->leave_link;	2639	$self->leave_link;
1934	}	2640	}
1935	})->prio (1);	2641	})->prio (1);
…		…
1948		2654
1949	sub cf::client::send_drawinfo {	2655	sub cf::client::send_drawinfo {
1950	my ($self, $text, $flags) = @_;	2656	my ($self, $text, $flags) = @_;
1951		2657
1952	utf8::encode $text;	2658	utf8::encode $text;
1953	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2659	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1954	}	2660	}
1955		2661
		2662	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2663
		2664	Send a drawinfo or msg packet to the client, formatting the msg for the
		2665	client if neccessary. C<$type> should be a string identifying the type of
		2666	the message, with C<log> being the default. If C<$color> is negative, suppress
		2667	the message unless the client supports the msg packet.
		2668
		2669	=cut
		2670
		2671	our %CHANNEL = (
		2672	"c/identify" => {
		2673	id => "infobox",
		2674	title => "Identify",
		2675	reply => undef,
		2676	tooltip => "Items recently identified",
		2677	},
		2678	"c/examine" => {
		2679	id => "infobox",
		2680	title => "Examine",
		2681	reply => undef,
		2682	tooltip => "Signs and other items you examined",
		2683	},
		2684	"c/book" => {
		2685	id => "infobox",
		2686	title => "Book",
		2687	reply => undef,
		2688	tooltip => "The contents of a note or book",
		2689	},
		2690	"c/lookat" => {
		2691	id => "infobox",
		2692	title => "Look",
		2693	reply => undef,
		2694	tooltip => "What you saw there",
		2695	},
		2696	);
		2697
		2698	sub cf::client::send_msg {
		2699	my ($self, $channel, $msg, $color, @extra) = @_;
		2700
		2701	$msg = $self->pl->expand_cfpod ($msg);
		2702
		2703	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2704
		2705	# check predefined channels, for the benefit of C
		2706	if ($CHANNEL{$channel}) {
		2707	$channel = $CHANNEL{$channel};
		2708
		2709	$self->ext_msg (channel_info => $channel)
		2710	if $self->can_msg;
		2711
		2712	$channel = $channel->{id};
		2713
		2714	} elsif (ref $channel) {
		2715	# send meta info to client, if not yet sent
		2716	unless (exists $self->{channel}{$channel->{id}}) {
		2717	$self->{channel}{$channel->{id}} = $channel;
		2718	$self->ext_msg (channel_info => $channel)
		2719	if $self->can_msg;
		2720	}
		2721
		2722	$channel = $channel->{id};
		2723	}
		2724
		2725	return unless @extra || length $msg;
		2726
		2727	if ($self->can_msg) {
		2728	# default colour, mask it out
		2729	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2730	if $color & cf::NDI_DEF;
		2731
		2732	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2733	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2734	} else {
		2735	if ($color >= 0) {
		2736	# replace some tags by gcfclient-compatible ones
		2737	for ($msg) {
		2738	1 while
		2739	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2740	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2741	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2742	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2743	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2744	}
		2745
		2746	$color &= cf::NDI_COLOR_MASK;
		2747
		2748	utf8::encode $msg;
		2749
		2750	if (0 && $msg =~ /\[/) {
		2751	# COMMAND/INFO
		2752	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2753	} else {
		2754	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2755	$self->send_packet ("drawinfo $color $msg")
		2756	}
		2757	}
		2758	}
		2759	}
		2760
		2761	=item $client->ext_msg ($type, @msg)
		2762
		2763	Sends an ext event to the client.
		2764
		2765	=cut
		2766
		2767	sub cf::client::ext_msg($$@) {
		2768	my ($self, $type, @msg) = @_;
		2769
		2770	if ($self->extcmd == 2) {
		2771	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2772	} elsif ($self->extcmd == 1) { # TODO: remove
		2773	push @msg, msgtype => "event_$type";
		2774	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2775	}
		2776	}
		2777
		2778	=item $client->ext_reply ($msgid, @msg)
		2779
		2780	Sends an ext reply to the client.
		2781
		2782	=cut
		2783
		2784	sub cf::client::ext_reply($$@) {
		2785	my ($self, $id, @msg) = @_;
		2786
		2787	if ($self->extcmd == 2) {
		2788	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2789	} elsif ($self->extcmd == 1) {
		2790	#TODO: version 1, remove
		2791	unshift @msg, msgtype => "reply", msgid => $id;
		2792	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2793	}
		2794	}
1956		2795
1957	=item $success = $client->query ($flags, "text", \&cb)	2796	=item $success = $client->query ($flags, "text", \&cb)
1958		2797
1959	Queues a query to the client, calling the given callback with	2798	Queues a query to the client, calling the given callback with
1960	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2799	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1961	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2800	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1962		2801
1963	Queries can fail, so check the return code. Or don't, as queries will become	2802	Queries can fail, so check the return code. Or don't, as queries will
1964	reliable at some point in the future.	2803	become reliable at some point in the future.
1965		2804
1966	=cut	2805	=cut
1967		2806
1968	sub cf::client::query {	2807	sub cf::client::query {
1969	my ($self, $flags, $text, $cb) = @_;	2808	my ($self, $flags, $text, $cb) = @_;
…		…
1977	utf8::encode $text;	2816	utf8::encode $text;
1978	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2817	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1979		2818
1980	$self->send_packet ($self->{query_queue}[0][0])	2819	$self->send_packet ($self->{query_queue}[0][0])
1981	if @{ $self->{query_queue} } == 1;	2820	if @{ $self->{query_queue} } == 1;
		2821
		2822	1
1982	}	2823	}
1983		2824
1984	cf::client->attach (	2825	cf::client->attach (
		2826	on_connect => sub {
		2827	my ($ns) = @_;
		2828
		2829	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2830	},
1985	on_reply => sub {	2831	on_reply => sub {
1986	my ($ns, $msg) = @_;	2832	my ($ns, $msg) = @_;
1987		2833
1988	# this weird shuffling is so that direct followup queries	2834	# this weird shuffling is so that direct followup queries
1989	# get handled first	2835	# get handled first
1990	my $queue = delete $ns->{query_queue}	2836	my $queue = delete $ns->{query_queue}
1991	or return; # be conservative, not sure how that can happen, but we saw a crash here	2837	or return; # be conservative, not sure how that can happen, but we saw a crash here
1992		2838
1993	(shift @$queue)->[1]->($msg);	2839	(shift @$queue)->[1]->($msg);
		2840	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1994		2841
1995	push @{ $ns->{query_queue} }, @$queue;	2842	push @{ $ns->{query_queue} }, @$queue;
1996		2843
1997	if (@{ $ns->{query_queue} } == @$queue) {	2844	if (@{ $ns->{query_queue} } == @$queue) {
1998	if (@$queue) {	2845	if (@$queue) {
…		…
2000	} else {	2847	} else {
2001	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2848	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2002	}	2849	}
2003	}	2850	}
2004	},	2851	},
		2852	on_exticmd => sub {
		2853	my ($ns, $buf) = @_;
		2854
		2855	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2856
		2857	if (ref $msg) {
		2858	my ($type, $reply, @payload) =
		2859	"ARRAY" eq ref $msg
		2860	? @$msg
		2861	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2862
		2863	my @reply;
		2864
		2865	if (my $cb = $EXTICMD{$type}) {
		2866	@reply = $cb->($ns, @payload);
		2867	}
		2868
		2869	$ns->ext_reply ($reply, @reply)
		2870	if $reply;
		2871
		2872	} else {
		2873	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2874	}
		2875
		2876	cf::override;
		2877	},
2005	);	2878	);
2006		2879
2007	=item $client->async (\&cb)	2880	=item $client->async (\&cb)
2008		2881
2009	Create a new coroutine, running the specified callback. The coroutine will	2882	Create a new coroutine, running the specified callback. The coroutine will
…		…
2050	our $safe = new Safe "safe";	2923	our $safe = new Safe "safe";
2051	our $safe_hole = new Safe::Hole;	2924	our $safe_hole = new Safe::Hole;
2052		2925
2053	$SIG{FPE} = 'IGNORE';	2926	$SIG{FPE} = 'IGNORE';
2054		2927
2055	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2928	$safe->permit_only (Opcode::opset qw(
		2929	:base_core :base_mem :base_orig :base_math
		2930	grepstart grepwhile mapstart mapwhile
		2931	sort time
		2932	));
2056		2933
2057	# here we export the classes and methods available to script code	2934	# here we export the classes and methods available to script code
2058		2935
2059	=pod	2936	=pod
2060		2937
2061	The following fucntions and emthods are available within a safe environment:	2938	The following functions and methods are available within a safe environment:
2062		2939
2063	cf::object contr pay_amount pay_player map	2940	cf::object
		2941	contr pay_amount pay_player map x y force_find force_add destroy
		2942	insert remove name archname title slaying race decrease_ob_nr
		2943
2064	cf::object::player player	2944	cf::object::player
2065	cf::player peaceful	2945	player
2066	cf::map trigger	2946
		2947	cf::player
		2948	peaceful
		2949
		2950	cf::map
		2951	trigger
2067		2952
2068	=cut	2953	=cut
2069		2954
2070	for (	2955	for (
2071	["cf::object" => qw(contr pay_amount pay_player map)],	2956	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2957	insert remove inv name archname title slaying race
		2958	decrease_ob_nr destroy)],
2072	["cf::object::player" => qw(player)],	2959	["cf::object::player" => qw(player)],
2073	["cf::player" => qw(peaceful)],	2960	["cf::player" => qw(peaceful)],
2074	["cf::map" => qw(trigger)],	2961	["cf::map" => qw(trigger)],
2075	) {	2962	) {
2076	no strict 'refs';	2963	no strict 'refs';
…		…
2147	=back	3034	=back
2148		3035
2149	=cut	3036	=cut
2150		3037
2151	#############################################################################	3038	#############################################################################
		3039	# the server's init and main functions
2152		3040
2153	=head2 EXTENSION DATABASE SUPPORT	3041	sub load_facedata($) {
		3042	my ($path) = @_;
2154		3043
2155	Crossfire maintains a very simple database for extension use. It can	3044	# HACK to clear player env face cache, we need some signal framework
2156	currently store anything that can be serialised using Storable, which	3045	# for this (global event?)
2157	excludes objects.	3046	%ext::player_env::MUSIC_FACE_CACHE = ();
2158		3047
2159	The parameter C<$family> should best start with the name of the extension	3048	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2160	using it, it should be unique.
2161		3049
2162	=over 4	3050	warn "loading facedata from $path\n";
2163		3051
2164	=item $hashref = cf::db_get $family	3052	my $facedata;
		3053	0 < aio_load $path, $facedata
		3054	or die "$path: $!";
2165		3055
2166	Return a hashref for use by the extension C<$family>, which can be	3056	$facedata = Coro::Storable::thaw $facedata;
2167	modified. After modifications, you have to call C<cf::db_dirty> or
2168	C<cf::db_sync>.
2169		3057
2170	=item $value = cf::db_get $family => $key	3058	$facedata->{version} == 2
		3059	or cf::cleanup "$path: version mismatch, cannot proceed.";
2171		3060
2172	Returns a single value from the database	3061	# patch in the exptable
2173		3062	$facedata->{resource}{"res/exp_table"} = {
2174	=item cf::db_put $family => $hashref	3063	type => FT_RSRC,
2175		3064	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2176	Stores the given family hashref into the database. Updates are delayed, if
2177	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_put $family => $key => $value
2180
2181	Stores the given C<$value> in the family hash. Updates are delayed, if you
2182	want the data to be synced to disk immediately, use C<cf::db_sync>.
2183
2184	=item cf::db_dirty
2185
2186	Marks the database as dirty, to be updated at a later time.
2187
2188	=item cf::db_sync
2189
2190	Immediately write the database to disk I<if it is dirty>.
2191
2192	=cut
2193
2194	our $DB;
2195
2196	{
2197	my $path = cf::localdir . "/database.pst";
2198
2199	sub db_load() {
2200	$DB = stat $path ? Storable::retrieve $path : { };
2201	}
2202
2203	my $pid;
2204
2205	sub db_save() {
2206	waitpid $pid, 0 if $pid;
2207	if (0 == ($pid = fork)) {
2208	$DB->{_meta}{version} = 1;
2209	Storable::nstore $DB, "$path~";
2210	rename "$path~", $path;
2211	cf::_exit 0 if defined $pid;
2212	}
2213	}
2214
2215	my $dirty;
2216
2217	sub db_sync() {
2218	db_save if $dirty;
2219	undef $dirty;
2220	}
2221
2222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2223	db_sync;
2224	});	3065	};
		3066	cf::cede_to_tick;
2225		3067
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}	3068	{
		3069	my $faces = $facedata->{faceinfo};
2230		3070
2231	sub db_get($;$) {	3071	while (my ($face, $info) = each %$faces) {
2232	@_ >= 2	3072	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2233	? $DB->{$_[0]}{$_[1]}	3073	cf::face::set_visibility $idx, $info->{visibility};
2234	: ($DB->{$_[0]} ||= { })	3074	cf::face::set_magicmap $idx, $info->{magicmap};
2235	}	3075	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3076	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2236		3077
2237	sub db_put($$;$) {	3078	cf::cede_to_tick;
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {
2241	$DB->{$_[0]} = $_[1];
2242	}
2243	db_dirty;
2244	}
2245
2246	cf::global->attach (
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	3079	}
2251	);
2252	}
2253		3080
2254	#############################################################################	3081	while (my ($face, $info) = each %$faces) {
2255	# the server's main()	3082	next unless $info->{smooth};
		3083	my $idx = cf::face::find $face
		3084	or next;
		3085	if (my $smooth = cf::face::find $info->{smooth}) {
		3086	cf::face::set_smooth $idx, $smooth;
		3087	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3088	} else {
		3089	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3090	}
2256		3091
2257	sub cfg_load {	3092	cf::cede_to_tick;
		3093	}
		3094	}
		3095
		3096	{
		3097	my $anims = $facedata->{animinfo};
		3098
		3099	while (my ($anim, $info) = each %$anims) {
		3100	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3101	cf::cede_to_tick;
		3102	}
		3103
		3104	cf::anim::invalidate_all; # d'oh
		3105	}
		3106
		3107	{
		3108	# TODO: for gcfclient pleasure, we should give resources
		3109	# that gcfclient doesn't grok a >10000 face index.
		3110	my $res = $facedata->{resource};
		3111
		3112	my $soundconf = delete $res->{"res/sound.conf"};
		3113
		3114	while (my ($name, $info) = each %$res) {
		3115	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3116	my $data;
		3117
		3118	if ($info->{type} & 1) {
		3119	# prepend meta info
		3120
		3121	my $meta = $enc->encode ({
		3122	name => $name,
		3123	%{ $info->{meta} || {} },
		3124	});
		3125
		3126	$data = pack "(w/a*)*", $meta, $info->{data};
		3127	} else {
		3128	$data = $info->{data};
		3129	}
		3130
		3131	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3132	cf::face::set_type $idx, $info->{type};
		3133
		3134	cf::cede_to_tick;
		3135	}
		3136
		3137	if ($soundconf) {
		3138	$soundconf = $enc->decode (delete $soundconf->{data});
		3139
		3140	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3141	my $sound = $soundconf->{compat}[$_]
		3142	or next;
		3143
		3144	my $face = cf::face::find "sound/$sound->[1]";
		3145	cf::sound::set $sound->[0] => $face;
		3146	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3147	}
		3148
		3149	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3150	my $face = cf::face::find "sound/$v";
		3151	cf::sound::set $k => $face;
		3152	}
		3153	}
		3154	}
		3155
		3156	1
		3157	}
		3158
		3159	register_exticmd fx_want => sub {
		3160	my ($ns, $want) = @_;
		3161
		3162	while (my ($k, $v) = each %$want) {
		3163	$ns->fx_want ($k, $v);
		3164	}
		3165	};
		3166
		3167	sub reload_regions {
		3168	# HACK to clear player env face cache, we need some signal framework
		3169	# for this (global event?)
		3170	%ext::player_env::MUSIC_FACE_CACHE = ();
		3171
		3172	load_resource_file "$MAPDIR/regions"
		3173	or die "unable to load regions file\n";
		3174
		3175	for (cf::region::list) {
		3176	$_->{match} = qr/$_->{match}/
		3177	if exists $_->{match};
		3178	}
		3179	}
		3180
		3181	sub reload_facedata {
		3182	load_facedata "$DATADIR/facedata"
		3183	or die "unable to load facedata\n";
		3184	}
		3185
		3186	sub reload_archetypes {
		3187	load_resource_file "$DATADIR/archetypes"
		3188	or die "unable to load archetypes\n";
		3189	#d# NEED to laod twice to resolve forward references
		3190	# this really needs to be done in an extra post-pass
		3191	# (which needs to be synchronous, so solve it differently)
		3192	load_resource_file "$DATADIR/archetypes"
		3193	or die "unable to load archetypes\n";
		3194	}
		3195
		3196	sub reload_treasures {
		3197	load_resource_file "$DATADIR/treasures"
		3198	or die "unable to load treasurelists\n";
		3199	}
		3200
		3201	sub reload_resources {
		3202	warn "reloading resource files...\n";
		3203
		3204	reload_regions;
		3205	reload_facedata;
		3206	#reload_archetypes;#d#
		3207	reload_archetypes;
		3208	reload_treasures;
		3209
		3210	warn "finished reloading resource files\n";
		3211	}
		3212
		3213	sub init {
		3214	reload_resources;
		3215	}
		3216
		3217	sub reload_config {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3218	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	3219	or return;
2260		3220
2261	local $/;	3221	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	3222	*CFG = YAML::Syck::Load <$fh>;
2263		3223
…		…
2277		3237
2278	sub main {	3238	sub main {
2279	# we must not ever block the main coroutine	3239	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	3240	local $Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3241	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3242	(async {
		3243	$Coro::current->{desc} = "IDLE BUG HANDLER";
2282	async { Event::one_event };	3244	Event::one_event;
		3245	})->prio (Coro::PRIO_MAX);
2283	};	3246	};
2284		3247
2285	cfg_load;	3248	reload_config;
2286	db_load;	3249	db_init;
2287	load_extensions;	3250	load_extensions;
		3251
		3252	$TICK_WATCHER->start;
2288	Event::loop;	3253	Event::loop;
2289	}	3254	}
2290		3255
2291	#############################################################################	3256	#############################################################################
2292	# initialisation and cleanup	3257	# initialisation and cleanup
2293		3258
2294	# install some emergency cleanup handlers	3259	# install some emergency cleanup handlers
2295	BEGIN {	3260	BEGIN {
2296	for my $signal (qw(INT HUP TERM)) {	3261	for my $signal (qw(INT HUP TERM)) {
2297	Event->signal (	3262	Event->signal (
		3263	reentrant => 0,
2298	data => WF_AUTOCANCEL,	3264	data => WF_AUTOCANCEL,
2299	signal => $signal,	3265	signal => $signal,
		3266	prio => 0,
2300	cb => sub {	3267	cb => sub {
2301	cf::cleanup "SIG$signal";	3268	cf::cleanup "SIG$signal";
2302	},	3269	},
2303	);	3270	);
2304	}	3271	}
2305	}	3272	}
2306		3273
		3274	sub write_runtime {
		3275	my $runtime = "$LOCALDIR/runtime";
		3276
		3277	# first touch the runtime file to show we are still running:
		3278	# the fsync below can take a very very long time.
		3279
		3280	IO::AIO::aio_utime $runtime, undef, undef;
		3281
		3282	my $guard = cf::lock_acquire "write_runtime";
		3283
		3284	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3285	or return;
		3286
		3287	my $value = $cf::RUNTIME + 90 + 10;
		3288	# 10 is the runtime save interval, for a monotonic clock
		3289	# 60 allows for the watchdog to kill the server.
		3290
		3291	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3292	and return;
		3293
		3294	# always fsync - this file is important
		3295	aio_fsync $fh
		3296	and return;
		3297
		3298	# touch it again to show we are up-to-date
		3299	aio_utime $fh, undef, undef;
		3300
		3301	close $fh
		3302	or return;
		3303
		3304	aio_rename "$runtime~", $runtime
		3305	and return;
		3306
		3307	warn "runtime file written.\n";
		3308
		3309	1
		3310	}
		3311
2307	sub emergency_save() {	3312	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	3313	my $freeze_guard = cf::freeze_mainloop;
2309		3314
2310	warn "enter emergency perl save\n";	3315	warn "enter emergency perl save\n";
2311		3316
2312	cf::sync_job {	3317	cf::sync_job {
2313	# use a peculiar iteration method to avoid tripping on perl	3318	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	3319	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/Destroyed asynchronously.	3320	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	3321	warn "begin emergency player save\n";
2317	for my $login (keys %cf::PLAYER) {	3322	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	3323	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	3324	$pl->valid or next;
		3325	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2320	$pl->save;	3326	$pl->save;
2321	}	3327	}
2322	warn "end emergency player save\n";	3328	warn "end emergency player save\n";
2323		3329
2324	warn "begin emergency map save\n";	3330	warn "begin emergency map save\n";
…		…
2326	my $map = $cf::MAP{$path} or next;	3332	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	3333	$map->valid or next;
2328	$map->save;	3334	$map->save;
2329	}	3335	}
2330	warn "end emergency map save\n";	3336	warn "end emergency map save\n";
		3337
		3338	warn "begin emergency database checkpoint\n";
		3339	BDB::db_env_txn_checkpoint $DB_ENV;
		3340	warn "end emergency database checkpoint\n";
2331	};	3341	};
2332		3342
2333	warn "leave emergency perl save\n";	3343	warn "leave emergency perl save\n";
2334	}	3344	}
2335		3345
		3346	sub post_cleanup {
		3347	my ($make_core) = @_;
		3348
		3349	warn Carp::longmess "post_cleanup backtrace"
		3350	if $make_core;
		3351	}
		3352
2336	sub reload() {	3353	sub do_reload_perl() {
2337	# can/must only be called in main	3354	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	3355	if ($Coro::current != $Coro::main) {
2339	warn "can only reload from main coroutine\n";	3356	warn "can only reload from main coroutine";
2340	return;	3357	return;
2341	}	3358	}
2342		3359
2343	warn "reloading...";	3360	warn "reloading...";
2344		3361
2345	my $guard = freeze_mainloop;	3362	warn "entering sync_job";
		3363
		3364	cf::sync_job {
		3365	cf::write_runtime; # external watchdog should not bark
2346	cf::emergency_save;	3366	cf::emergency_save;
		3367	cf::write_runtime; # external watchdog should not bark
2347		3368
2348	eval {	3369	warn "syncing database to disk";
		3370	BDB::db_env_txn_checkpoint $DB_ENV;
		3371
2349	# if anything goes wrong in here, we should simply crash as we already saved	3372	# if anything goes wrong in here, we should simply crash as we already saved
2350		3373
2351	# cancel all watchers	3374	warn "cancelling all WF_AUTOCANCEL watchers";
2352	for (Event::all_watchers) {	3375	for (Event::all_watchers) {
2353	$_->cancel if $_->data & WF_AUTOCANCEL;	3376	$_->cancel if $_->data & WF_AUTOCANCEL;
2354	}	3377	}
2355		3378
		3379	warn "flushing outstanding aio requests";
		3380	for (;;) {
		3381	BDB::flush;
		3382	IO::AIO::flush;
		3383	Coro::cede_notself;
		3384	last unless IO::AIO::nreqs || BDB::nreqs;
		3385	warn "iterate...";
		3386	}
		3387
		3388	++$RELOAD;
		3389
2356	# cancel all extension coros	3390	warn "cancelling all extension coros";
2357	$_->cancel for values %EXT_CORO;	3391	$_->cancel for values %EXT_CORO;
2358	%EXT_CORO = ();	3392	%EXT_CORO = ();
2359		3393
2360	# unload all extensions	3394	warn "removing commands";
2361	for (@exts) {	3395	%COMMAND = ();
		3396
		3397	warn "removing ext/exti commands";
		3398	%EXTCMD = ();
		3399	%EXTICMD = ();
		3400
		3401	warn "unloading/nuking all extensions";
		3402	for my $pkg (@EXTS) {
2362	warn "unloading <$_>";	3403	warn "... unloading $pkg";
2363	unload_extension $_;	3404
		3405	if (my $cb = $pkg->can ("unload")) {
		3406	eval {
		3407	$cb->($pkg);
		3408	1
		3409	} or warn "$pkg unloaded, but with errors: $@";
2364	}	3410	}
2365		3411
		3412	warn "... nuking $pkg";
		3413	Symbol::delete_package $pkg;
		3414	}
		3415
2366	# unload all modules loaded from $LIBDIR	3416	warn "unloading all perl modules loaded from $LIBDIR";
2367	while (my ($k, $v) = each %INC) {	3417	while (my ($k, $v) = each %INC) {
2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3418	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2369		3419
2370	warn "removing <$k>";	3420	warn "... unloading $k";
2371	delete $INC{$k};	3421	delete $INC{$k};
2372		3422
2373	$k =~ s/\.pm$//;	3423	$k =~ s/\.pm$//;
2374	$k =~ s/\//::/g;	3424	$k =~ s/\//::/g;
2375		3425
…		…
2378	}	3428	}
2379		3429
2380	Symbol::delete_package $k;	3430	Symbol::delete_package $k;
2381	}	3431	}
2382		3432
2383	# sync database to disk
2384	cf::db_sync;
2385	IO::AIO::flush;
2386
2387	# get rid of safe::, as good as possible	3433	warn "getting rid of safe::, as good as possible";
2388	Symbol::delete_package "safe::$_"	3434	Symbol::delete_package "safe::$_"
2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3435	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2390		3436
2391	# remove register_script_function callbacks
2392	# TODO
2393
2394	# unload cf.pm "a bit"	3437	warn "unloading cf.pm \"a bit\"";
2395	delete $INC{"cf.pm"};	3438	delete $INC{"cf.pm"};
		3439	delete $INC{"cf/pod.pm"};
2396		3440
2397	# don't, removes xs symbols, too,	3441	# don't, removes xs symbols, too,
2398	# and global variables created in xs	3442	# and global variables created in xs
2399	#Symbol::delete_package __PACKAGE__;	3443	#Symbol::delete_package __PACKAGE__;
2400		3444
2401	# reload cf.pm	3445	warn "unload completed, starting to reload now";
		3446
2402	warn "reloading cf.pm";	3447	warn "reloading cf.pm";
2403	require cf;	3448	require cf;
2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2405		3450
2406	# load config and database again	3451	warn "loading config and database again";
2407	cf::cfg_load;	3452	cf::reload_config;
2408	cf::db_load;
2409		3453
2410	# load extensions
2411	warn "load extensions";	3454	warn "loading extensions";
2412	cf::load_extensions;	3455	cf::load_extensions;
2413		3456
2414	# reattach attachments to objects	3457	warn "reattaching attachments to objects/players";
2415	warn "reattach";	3458	_global_reattach; # objects, sockets
2416	_global_reattach;	3459	warn "reattaching attachments to maps";
2417	reattach $_ for values %MAP;	3460	reattach $_ for values %MAP;
2418	};	3461	warn "reattaching attachments to players";
		3462	reattach $_ for values %PLAYER;
2419		3463
2420	if ($@) {	3464	warn "leaving sync_job";
		3465
		3466	1
		3467	} or do {
2421	warn $@;	3468	warn $@;
2422	warn "error while reloading, exiting.";	3469	warn "error while reloading, exiting.";
2423	exit 1;	3470	exit 1;
2424	}	3471	};
2425		3472
2426	warn "reloaded successfully";	3473	warn "reloaded";
2427	};	3474	};
2428		3475
2429	#############################################################################	3476	our $RELOAD_WATCHER; # used only during reload
2430		3477
2431	unless ($LINK_MAP) {	3478	sub reload_perl() {
2432	$LINK_MAP = cf::map::new;	3479	# doing reload synchronously and two reloads happen back-to-back,
		3480	# coro crashes during coro_state_free->destroy here.
2433		3481
2434	$LINK_MAP->width (41);	3482	$RELOAD_WATCHER ||= Event->timer (
2435	$LINK_MAP->height (41);	3483	reentrant => 0,
2436	$LINK_MAP->alloc;
2437	$LINK_MAP->path ("{link}");
2438	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2439	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2440
2441	# dirty hack because... archetypes are not yet loaded
2442	Event->timer (
2443	after => 10,	3484	after => 0,
		3485	data => WF_AUTOCANCEL,
2444	cb => sub {	3486	cb => sub {
2445	$_[0]->w->cancel;	3487	do_reload_perl;
2446		3488	undef $RELOAD_WATCHER;
2447	# provide some exits "home"
2448	my $exit = cf::object::new "exit";
2449
2450	$exit->slaying ($EMERGENCY_POSITION->[0]);
2451	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2452	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2453
2454	$LINK_MAP->insert ($exit->clone, 19, 19);
2455	$LINK_MAP->insert ($exit->clone, 19, 20);
2456	$LINK_MAP->insert ($exit->clone, 19, 21);
2457	$LINK_MAP->insert ($exit->clone, 20, 19);
2458	$LINK_MAP->insert ($exit->clone, 20, 21);
2459	$LINK_MAP->insert ($exit->clone, 21, 19);
2460	$LINK_MAP->insert ($exit->clone, 21, 20);
2461	$LINK_MAP->insert ($exit->clone, 21, 21);
2462
2463	$exit->destroy;
2464	});	3489	},
2465		3490	);
2466	$LINK_MAP->{deny_save} = 1;
2467	$LINK_MAP->{deny_reset} = 1;
2468
2469	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2470	}	3491	}
2471
2472	register "<global>", __PACKAGE__;
2473		3492
2474	register_command "reload" => sub {	3493	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	3494	my ($who, $arg) = @_;
2476		3495
2477	if ($who->flag (FLAG_WIZ)) {	3496	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("start of reload.");
2479	reload;
2480	$who->message ("end of reload.");	3497	$who->message ("reloading server.");
		3498	async {
		3499	$Coro::current->{desc} = "perl_reload";
		3500	reload_perl;
		3501	};
2481	}	3502	}
2482	};	3503	};
2483		3504
2484	unshift @INC, $LIBDIR;	3505	unshift @INC, $LIBDIR;
		3506
		3507	my $bug_warning = 0;
		3508
		3509	our @WAIT_FOR_TICK;
		3510	our @WAIT_FOR_TICK_BEGIN;
		3511
		3512	sub wait_for_tick {
		3513	return unless $TICK_WATCHER->is_active;
		3514	return if $Coro::current == $Coro::main;
		3515
		3516	my $signal = new Coro::Signal;
		3517	push @WAIT_FOR_TICK, $signal;
		3518	$signal->wait;
		3519	}
		3520
		3521	sub wait_for_tick_begin {
		3522	return unless $TICK_WATCHER->is_active;
		3523	return if $Coro::current == $Coro::main;
		3524
		3525	my $signal = new Coro::Signal;
		3526	push @WAIT_FOR_TICK_BEGIN, $signal;
		3527	$signal->wait;
		3528	}
2485		3529
2486	$TICK_WATCHER = Event->timer (	3530	$TICK_WATCHER = Event->timer (
2487	reentrant => 0,	3531	reentrant => 0,
		3532	parked => 1,
2488	prio => 0,	3533	prio => 0,
2489	at => $NEXT_TICK || $TICK,	3534	at => $NEXT_TICK || $TICK,
2490	data => WF_AUTOCANCEL,	3535	data => WF_AUTOCANCEL,
2491	cb => sub {	3536	cb => sub {
		3537	if ($Coro::current != $Coro::main) {
		3538	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3539	unless ++$bug_warning > 10;
		3540	return;
		3541	}
		3542
		3543	$NOW = $tick_start = Event::time;
		3544
2492	cf::server_tick; # one server iteration	3545	cf::server_tick; # one server iteration
		3546
2493	$RUNTIME += $TICK;	3547	$RUNTIME += $TICK;
2494	$NEXT_TICK += $TICK;	3548	$NEXT_TICK += $TICK;
2495		3549
2496	$WAIT_FOR_TICK->broadcast;	3550	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3551	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3552	Coro::async_pool {
		3553	$Coro::current->{desc} = "runtime saver";
		3554	write_runtime
		3555	or warn "ERROR: unable to write runtime file: $!";
		3556	};
		3557	}
		3558
		3559	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3560	$sig->send;
		3561	}
		3562	while (my $sig = shift @WAIT_FOR_TICK) {
		3563	$sig->send;
		3564	}
		3565
		3566	$NOW = Event::time;
2498		3567
2499	# if we are delayed by four ticks or more, skip them all	3568	# if we are delayed by four ticks or more, skip them all
2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3569	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2501		3570
2502	$TICK_WATCHER->at ($NEXT_TICK);	3571	$TICK_WATCHER->at ($NEXT_TICK);
2503	$TICK_WATCHER->start;	3572	$TICK_WATCHER->start;
		3573
		3574	$LOAD = ($NOW - $tick_start) / $TICK;
		3575	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3576
		3577	_post_tick;
2504	},	3578	},
2505	);	3579	);
2506		3580
		3581	{
		3582	BDB::min_parallel 8;
2507	IO::AIO::max_poll_time $TICK * 0.2;	3583	BDB::max_poll_time $TICK * 0.1;
2508		3584	$BDB_POLL_WATCHER = Event->io (
2509	Event->io (	3585	reentrant => 0,
2510	fd => IO::AIO::poll_fileno,	3586	fd => BDB::poll_fileno,
2511	poll => 'r',	3587	poll => 'r',
2512	prio => 5,	3588	prio => 0,
2513	data => WF_AUTOCANCEL,
2514	cb => \&IO::AIO::poll_cb,
2515	);
2516
2517	Event->timer (
2518	data => WF_AUTOCANCEL,	3589	data => WF_AUTOCANCEL,
		3590	cb => \&BDB::poll_cb,
		3591	);
		3592
		3593	BDB::set_sync_prepare {
		3594	my $status;
		3595	my $current = $Coro::current;
		3596	(
		3597	sub {
		3598	$status = $!;
		3599	$current->ready; undef $current;
		3600	},
		3601	sub {
		3602	Coro::schedule while defined $current;
		3603	$! = $status;
		3604	},
		3605	)
		3606	};
		3607
		3608	unless ($DB_ENV) {
		3609	$DB_ENV = BDB::db_env_create;
		3610	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3611	| BDB::LOG_AUTOREMOVE, 1);
		3612	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3613	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3614
		3615	cf::sync_job {
		3616	eval {
		3617	BDB::db_env_open
		3618	$DB_ENV,
		3619	$BDBDIR,
		3620	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3621	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3622	0666;
		3623
		3624	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3625	};
		3626
		3627	cf::cleanup "db_env_open(db): $@" if $@;
		3628	};
		3629	}
		3630
		3631	$BDB_DEADLOCK_WATCHER = Event->timer (
2519	after => 0,	3632	after => 3,
2520	interval => 10,	3633	interval => 1,
		3634	hard => 1,
		3635	prio => 0,
		3636	data => WF_AUTOCANCEL,
2521	cb => sub {	3637	cb => sub {
2522	(Coro::unblock_sub {	3638	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2523	write_runtime	3639	},
2524	or warn "ERROR: unable to write runtime file: $!";	3640	);
		3641	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3642	after => 11,
		3643	interval => 60,
		3644	hard => 1,
		3645	prio => 0,
		3646	data => WF_AUTOCANCEL,
		3647	cb => sub {
		3648	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3649	},
		3650	);
		3651	$BDB_TRICKLE_WATCHER = Event->timer (
		3652	after => 5,
		3653	interval => 10,
		3654	hard => 1,
		3655	prio => 0,
		3656	data => WF_AUTOCANCEL,
		3657	cb => sub {
		3658	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3659	},
		3660	);
		3661	}
		3662
		3663	{
		3664	IO::AIO::min_parallel 8;
		3665
		3666	undef $Coro::AIO::WATCHER;
		3667	IO::AIO::max_poll_time $TICK * 0.1;
		3668	$AIO_POLL_WATCHER = Event->io (
		3669	reentrant => 0,
		3670	data => WF_AUTOCANCEL,
		3671	fd => IO::AIO::poll_fileno,
		3672	poll => 'r',
		3673	prio => 0,
		3674	cb => \&IO::AIO::poll_cb,
		3675	);
		3676	}
		3677
		3678	my $_log_backtrace;
		3679
		3680	sub _log_backtrace {
		3681	my ($msg, @addr) = @_;
		3682
		3683	$msg =~ s/\n//;
		3684
		3685	# limit the # of concurrent backtraces
		3686	if ($_log_backtrace < 2) {
		3687	++$_log_backtrace;
		3688	async {
		3689	$Coro::current->{desc} = "abt $msg";
		3690
		3691	my @bt = fork_call {
		3692	@addr = map { sprintf "%x", $_ } @addr;
		3693	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3694	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3695	or die "addr2line: $!";
		3696
		3697	my @funcs;
		3698	my @res = <$fh>;
		3699	chomp for @res;
		3700	while (@res) {
		3701	my ($func, $line) = splice @res, 0, 2, ();
		3702	push @funcs, "[$func] $line";
		3703	}
		3704
		3705	@funcs
		3706	};
		3707
		3708	LOG llevInfo, "[ABT] $msg\n";
		3709	LOG llevInfo, "[ABT] $_\n" for @bt;
		3710	--$_log_backtrace;
2525	})->();	3711	};
		3712	} else {
		3713	LOG llevInfo, "[ABT] $msg\n";
		3714	LOG llevInfo, "[ABT] [suppressed]\n";
2526	},	3715	}
2527	);	3716	}
		3717
		3718	# load additional modules
		3719	use cf::pod;
2528		3720
2529	END { cf::emergency_save }	3721	END { cf::emergency_save }
2530		3722
2531	1	3723	1
2532		3724

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