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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.156 by root, Tue Jan 9 22:07:08 2007 UTC vs.
Revision 1.401 by root, Mon Dec 17 06:45:53 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
28		39	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
39		59
		60	our $RELOAD; # number of reloads so far
40	our @EVENT;	61	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		62
43	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	79	our $NEXT_TICK;
46	our $NOW;	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
47		87
48	our %CFG;	88	our %CFG;
49		89
50	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
52		93
53	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	96	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		97
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	98	# 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;	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
61		104
62	binmode STDOUT;	105	binmode STDOUT;
63	binmode STDERR;	106	binmode STDERR;
64		107
65	# read virtual server time, if available	108	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
70	}	113	}
71		114
72	mkdir cf::localdir;	115	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		117
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
81		121
82	#############################################################################	122	#############################################################################
83		123
84	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
85		125
…		…
92	=item $cf::RUNTIME	132	=item $cf::RUNTIME
93		133
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	135	every server tick.
96		136
97	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		140
99	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
101		145
102	=item $cf::NOW	146	=item $cf::NOW
103		147
104	The time of the last (current) server tick.	148	The time of the last (current) server tick.
105		149
106	=item $cf::TICK	150	=item $cf::TICK
107		151
108	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
109		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
		163
110	=item %cf::CFG	164	=item %cf::CFG
111		165
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	167	from wherever your confdir points to.
114		168
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		170
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	171	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	172	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	173	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.	174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
121		180
122	=back	181	=back
123		182
124	=cut	183	=cut
125		184
126	BEGIN {	185	BEGIN {
127	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	187	my $msg = join "", @_;
129	utf8::encode $msg;
130		188
131	$msg .= "\n"	189	$msg .= "\n"
132	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
133		193
134	LOG llevError, $msg;	194	LOG llevError, $msg;
135	};	195	};
136	}	196	}
137		197
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		205
145	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	207	# within the Safe compartment.
147	for my $pkg (qw(	208	for my $pkg (qw(
148	cf::global cf::attachable	209	cf::global cf::attachable
…		…
153	)) {	214	)) {
154	no strict 'refs';	215	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	217	}
157		218
158	$Event::DIED = sub {	219	$EV::DIED = sub {
159	warn "error in event callback: @_";	220	warn "error in event callback: @_";
160	};	221	};
161		222
162	my %ext_pkg;	223	#############################################################################
163	my @exts;
164	my @hook;
165		224
166	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
167		226
168	=over 4	227	=over 4
169		228
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	248	$d
190	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
191	}	250	}
192		251
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
196		253
197	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
198		255
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
207		257
208	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
209		259
210	=cut	260	=cut
211		261
212	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
214	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
215	}	265	sub decode_json($) { $json_coder->decode ($_[0]) }
216		266
217	=item cf::lock_wait $string	267	=item cf::lock_wait $string
218		268
219	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
220		270
…		…
223	Wait until the given lock is available and then acquires it and returns	273	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,	274	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	275	for example when the coroutine gets canceled), the lock is automatically
226	returned.	276	returned.
227		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
228	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
230		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
231	=cut	288	=cut
232		289
233	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
234		292
235	sub lock_wait($) {	293	sub lock_wait($) {
236	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
237		300
238	# wait for lock, if any	301	# wait for lock, if any
239	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	304	Coro::schedule;
…		…
247		310
248	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
249	lock_wait $key;	312	lock_wait $key;
250		313
251	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
252		316
253	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
256	}	321	}
257	}	322	}
258		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
259	sub freeze_mainloop {	330	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
261		332
262	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
263	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
264	$guard	337	$guard
		338	}
		339
		340	=item cf::periodic $interval, $cb
		341
		342	Like EV::periodic, but randomly selects a starting point so that the actions
		343	get spread over timer.
		344
		345	=cut
		346
		347	sub periodic($$) {
		348	my ($interval, $cb) = @_;
		349
		350	my $start = rand List::Util::min 180, $interval;
		351
		352	EV::periodic $start, $interval, 0, $cb
		353	}
		354
		355	=item cf::get_slot $time[, $priority[, $name]]
		356
		357	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		358	This call blocks and returns only when you have at least C<$time> seconds
		359	of cpu time till the next tick. The slot is only valid till the next cede.
		360
		361	The optional C<$name> can be used to identify the job to run. It might be
		362	used for statistical purposes and should identify the same time-class.
		363
		364	Useful for short background jobs.
		365
		366	=cut
		367
		368	our @SLOT_QUEUE;
		369	our $SLOT_QUEUE;
		370
		371	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		372	$SLOT_QUEUE = Coro::async {
		373	$Coro::current->desc ("timeslot manager");
		374
		375	my $signal = new Coro::Signal;
		376
		377	while () {
		378	next_job:
		379	my $avail = cf::till_tick;
		380	if ($avail > 0.01) {
		381	for (0 .. $#SLOT_QUEUE) {
		382	if ($SLOT_QUEUE[$_][0] < $avail) {
		383	my $job = splice @SLOT_QUEUE, $_, 1, ();
		384	$job->[2]->send;
		385	Coro::cede;
		386	goto next_job;
		387	}
		388	}
		389	}
		390
		391	if (@SLOT_QUEUE) {
		392	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		393	push @cf::WAIT_FOR_TICK, $signal;
		394	$signal->wait;
		395	} else {
		396	Coro::schedule;
		397	}
		398	}
		399	};
		400
		401	sub get_slot($;$$) {
		402	my ($time, $pri, $name) = @_;
		403
		404	$time = $TICK * .6 if $time > $TICK * .6;
		405	my $sig = new Coro::Signal;
		406
		407	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		408	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		409	$SLOT_QUEUE->ready;
		410	$sig->wait;
265	}	411	}
266		412
267	=item cf::async { BLOCK }	413	=item cf::async { BLOCK }
268		414
269	Currently the same as Coro::async_pool, meaning you cannot use	415	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		420
275	BEGIN { *async = \&Coro::async_pool }	421	BEGIN { *async = \&Coro::async_pool }
276		422
277	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
278		424
279	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
282		429
283	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
286	fast or be very important.	433	fast or be very important.
…		…
289		436
290	sub sync_job(&) {	437	sub sync_job(&) {
291	my ($job) = @_;	438	my ($job) = @_;
292		439
293	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
294	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
296		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
297	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	449	# (but this is cancel-safe)
299	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
300		451
301	my $busy = 1;	452	my $busy = 1;
302	my @res;	453	my @res;
303		454
304	(async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	457	@res = eval { $job->() };
306	warn $@ if $@;	458	warn $@ if $@;
307	undef $busy;	459	undef $busy;
308	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
309		461
310	while ($busy) {	462	while ($busy) {
311	Coro::cede or Event::one_event;	463	if (Coro::nready) {
		464	Coro::cede_notself;
		465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
312	}	467	}
		468	}
		469
		470	$time = EV::time - $time;
		471
		472	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		473	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		474
		475	$tick_start += $time; # do not account sync jobs to server load
313		476
314	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
315	} else {	478	} else {
316	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
317		480
…		…
319	}	482	}
320	}	483	}
321		484
322	=item $coro = cf::async_ext { BLOCK }	485	=item $coro = cf::async_ext { BLOCK }
323		486
324	Like async, but this coro is automcatially being canceled when the	487	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	488	extension calling this is being unloaded.
326		489
327	=cut	490	=cut
328		491
329	sub async_ext(&) {	492	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
338		501
339	$coro	502	$coro
340	}	503	}
341		504
342	sub write_runtime {	505	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		506
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
346	or return;	508	process, returning the results. Everything must be serialisable with
		509	Coro::Storable. May, of course, block. Note that the executed sub may
		510	never block itself or use any form of event handling.
347		511
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	512	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		513
352	aio_fsync $fh	514	sub fork_call(&@) {
353	and return;	515	my ($cb, @args) = @_;
354		516
355	close $fh	517	# we seemingly have to make a local copy of the whole thing,
356	or return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
357		520
358	aio_rename "$runtime~", $runtime	521	my @res = Coro::Util::fork_eval {
359	and return;	522	reset_signals;
		523	&$cb
		524	}, @args;
360		525
		526	wantarray ? @res : $res[-1]
		527	}
		528
		529	=item $value = cf::db_get $family => $key
		530
		531	Returns a single value from the environment database.
		532
		533	=item cf::db_put $family => $key => $value
		534
		535	Stores the given C<$value> in the family. It can currently store binary
		536	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		537
		538	=item $db = cf::db_table "name"
		539
		540	Create and/or open a new database table. The string must not be "db" and must be unique
		541	within each server.
		542
		543	=cut
		544
		545	sub db_table($) {
		546	my ($name) = @_;
		547	my $db = BDB::db_create $DB_ENV;
		548
		549	eval {
		550	$db->set_flags (BDB::CHKSUM);
		551
		552	utf8::encode $name;
		553	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		554	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		555	cf::cleanup "db_open(db): $!" if $!;
		556	};
		557	cf::cleanup "db_open(db): $@" if $@;
		558
		559	$db
		560	}
		561
		562	our $DB;
		563
		564	sub db_init {
		565	cf::sync_job {
		566	$DB ||= db_table "db";
		567	};
		568	}
		569
		570	sub db_get($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
361	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		582	BDB::dbreq_pri 4;
		583	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		584	}
		585
		586	=item cf::cache $id => [$paths...], $processversion => $process
		587
		588	Generic caching function that returns the value of the resource $id,
		589	caching and regenerating as required.
		590
		591	This function can block.
		592
		593	=cut
		594
		595	sub cache {
		596	my ($id, $src, $processversion, $process) = @_;
		597
		598	my $meta =
		599	join "\x00",
		600	$processversion,
		601	map {
		602	aio_stat $_
		603	and Carp::croak "$_: $!";
		604
		605	($_, (stat _)[7,9])
		606	} @$src;
		607
		608	my $dbmeta = db_get cache => "$id/meta";
		609	if ($dbmeta ne $meta) {
		610	# changed, we may need to process
		611
		612	my @data;
		613	my $md5;
		614
		615	for (0 .. $#$src) {
		616	0 <= aio_load $src->[$_], $data[$_]
		617	or Carp::croak "$src->[$_]: $!";
		618	}
		619
		620	# if processing is expensive, check
		621	# checksum first
		622	if (1) {
		623	$md5 =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	cf::cede_to_tick;
		628	($src->[$_], Digest::MD5::md5_hex $data[$_])
		629	} 0.. $#$src;
		630
		631
		632	my $dbmd5 = db_get cache => "$id/md5";
		633	if ($dbmd5 eq $md5) {
		634	db_put cache => "$id/meta", $meta;
		635
		636	return db_get cache => "$id/data";
		637	}
		638	}
		639
		640	my $t1 = Time::HiRes::time;
		641	my $data = $process->(\@data);
		642	my $t2 = Time::HiRes::time;
		643
		644	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		645
		646	db_put cache => "$id/data", $data;
		647	db_put cache => "$id/md5" , $md5;
		648	db_put cache => "$id/meta", $meta;
		649
		650	return $data;
		651	}
		652
		653	db_get cache => "$id/data"
		654	}
		655
		656	=item cf::datalog type => key => value, ...
		657
		658	Log a datalog packet of the given type with the given key-value pairs.
		659
		660	=cut
		661
		662	sub datalog($@) {
		663	my ($type, %kv) = @_;
		664	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	665	}
363		666
364	=back	667	=back
365		668
366	=cut	669	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		670
490	#############################################################################	671	#############################################################################
491		672
492	=head2 ATTACHABLE OBJECTS	673	=head2 ATTACHABLE OBJECTS
493		674
…		…
495	attach callbacks/event handlers (a collection of which is called an "attachment")	676	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
497		678
498	In the following description, CLASS can be any of C<global>, C<object>	679	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	680	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	681	Deliantra).
501		682
502	=over 4	683	=over 4
503		684
504	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
505		686
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	800	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	801	our @CB_MAP = ();
621		802
622	my %attachment;	803	my %attachment;
623		804
		805	sub cf::attachable::thawer_merge {
		806	# simply override everything except _meta
		807	local $_[0]{_meta};
		808	%{$_[0]} = %{$_[1]};
		809	}
		810
624	sub _attach_cb($$$$) {	811	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	812	my ($registry, $event, $prio, $cb) = @_;
626		813
627	use sort 'stable';	814	use sort 'stable';
628		815
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
663		850
664	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		855
669	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	857	my $pkg = shift @arg;
671		858
672	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
702	}	889	}
703		890
704	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
705	} else {	892	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	894	}
708		895
709	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
710	}	897	}
711		898
…		…
713	if (ref $_[0]) {	900	if (ref $_[0]) {
714	_object_attach @_;	901	_object_attach @_;
715	} else {	902	} else {
716	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
717	}	904	}
		905	_recalc_want;
718	};	906	};
719		907
720	# all those should be optimised	908	# all those should be optimised
721	sub cf::attachable::detach {	909	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
726	reattach ($obj);	914	reattach ($obj);
727	} else {	915	} else {
728	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
729	}	917	}
		918	_recalc_want;
730	};	919	};
731		920
732	sub cf::attachable::attached {	921	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
734		923
…		…
749	";	938	";
750	die if $@;	939	die if $@;
751	}	940	}
752		941
753	our $override;	942	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	943	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		944
756	sub override {	945	sub override {
757	$override = 1;	946	$override = 1;
758	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
759	}	948	}
760		949
761	sub do_invoke {	950	sub do_invoke {
762	my $event = shift;	951	my $event = shift;
763	my $callbacks = shift;	952	my $callbacks = shift;
764		953
765	@invoke_results = ();	954	@INVOKE_RESULTS = ();
766		955
767	local $override;	956	local $override;
768		957
769	for (@$callbacks) {	958	for (@$callbacks) {
770	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
787		976
788	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
789		978
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	979	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	980	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		982
794	=back	983	=back
795		984
796	=cut	985	=cut
797		986
798	#############################################################################	987	#############################################################################
799	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
800		1031
801	sub reattach {	1032	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1034	my ($obj) = @_;
		1035
		1036	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1037
805	my $registry = $obj->registry;	1038	my $registry = $obj->registry;
806		1039
807	@$registry = ();	1040	@$registry = ();
808		1041
…		…
823	cf::attachable->attach (	1056	cf::attachable->attach (
824	prio => -1000000,	1057	prio => -1000000,
825	on_instantiate => sub {	1058	on_instantiate => sub {
826	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
827		1060
828	$data = from_json $data;	1061	$data = decode_json $data;
829		1062
830	for (@$data) {	1063	for (@$data) {
831	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
832		1065
833	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1082	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
851		1084
852	sync_job {	1085	sync_job {
853	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
856		1090
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	1094	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	1095	close $fh;
862		1096
863	if (@$objs) {	1097	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1098	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	1102	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	1103	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
871	}	1105	}
872	} else {	1106	} else {
873	aio_unlink "$filename.pst";	1107	aio_unlink "$filename.pst";
…		…
879	}	1113	}
880	} else {	1114	} else {
881	aio_unlink $filename;	1115	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
883	}	1117	}
884	}	1118	};
885	}	1119	}
886		1120
887	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
889		1123
…		…
901	or return;	1135	or return;
902		1136
903	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
905	or return;	1139	or return;
		1140
906	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
907	}	1143	}
908		1144
		1145	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1147	$decname, length $data, scalar @{$av || []};
		1148
911	return ($data, $av);	1149	($data, $av)
912	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
913		1157
914	#############################################################################	1158	#############################################################################
915	# command handling &c	1159	# command handling &c
916		1160
917	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1175	}
932		1176
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1178
935	Register a callbackf ro execution when the client sends an extcmd packet.	1179	Register a callback for execution when the client sends an (synchronous)
		1180	extcmd packet. Ext commands will be processed in the order they are
		1181	received by the server, like other user commands. The first argument is
		1182	the logged-in player. Ext commands can only be processed after a player
		1183	has logged in successfully.
936		1184
937	If the callback returns something, it is sent back as if reply was being	1185	If the callback returns something, it is sent back as if reply was being
938	called.	1186	called.
939		1187
		1188	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1189
		1190	Register a callback for execution when the client sends an (asynchronous)
		1191	exticmd packet. Exti commands are processed by the server as soon as they
		1192	are received, i.e. out of order w.r.t. other commands. The first argument
		1193	is a client socket. Exti commands can be received anytime, even before
		1194	log-in.
		1195
		1196	If the callback returns something, it is sent back as if reply was being
		1197	called.
		1198
940	=cut	1199	=cut
941		1200
942	sub register_extcmd {	1201	sub register_extcmd {
943	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
944		1203
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
949	}	1211	}
950		1212
951	cf::player->attach (	1213	cf::player->attach (
952	on_command => sub {	1214	on_command => sub {
953	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1224	cf::override;
963	},	1225	},
964	on_extcmd => sub {	1226	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
966		1228
967	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1230
969	if (ref $msg) {	1231	if (ref $msg) {
		1232	my ($type, $reply, @payload) =
		1233	"ARRAY" eq ref $msg
		1234	? @$msg
		1235	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1236
		1237	my @reply;
		1238
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
975	} else {	1246	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1248	}
978		1249
979	cf::override;	1250	cf::override;
980	},	1251	},
981	);	1252	);
982		1253
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1254	sub load_extensions {
		1255	cf::sync_job {
		1256	my %todo;
		1257
1060	for my $ext (<$LIBDIR/*.ext>) {	1258	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1259	next unless -r $path;
1062	eval {	1260
1063	load_extension $ext;	1261	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1262	my $base = $1;
		1263	my $pkg = $1;
		1264	$pkg =~ s/[^[:word:]]/_/g;
		1265	$pkg = "ext::$pkg";
		1266
		1267	open my $fh, "<:utf8", $path
		1268	or die "$path: $!";
		1269
		1270	my $source = do { local $/; <$fh> };
		1271
		1272	my %ext = (
		1273	path => $path,
		1274	base => $base,
		1275	pkg => $pkg,
		1276	);
		1277
		1278	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1279	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1280
		1281	$ext{source} =
		1282	"package $pkg; use strict; use utf8;\n"
		1283	. "#line 1 \"$path\"\n{\n"
		1284	. $source
		1285	. "\n};\n1";
		1286
		1287	$todo{$base} = \%ext;
		1288	}
		1289
		1290	my %done;
		1291	while (%todo) {
		1292	my $progress;
		1293
		1294	while (my ($k, $v) = each %todo) {
		1295	for (split /,\s*/, $v->{meta}{depends}) {
		1296	goto skip
		1297	unless exists $done{$_};
		1298	}
		1299
		1300	warn "... loading '$k' into '$v->{pkg}'\n";
		1301
		1302	unless (eval $v->{source}) {
		1303	my $msg = $@ ? "$v->{path}: $@\n"
		1304	: "$v->{base}: extension inactive.\n";
		1305
		1306	if (exists $v->{meta}{mandatory}) {
		1307	warn $msg;
		1308	warn "mandatory extension failed to load, exiting.\n";
		1309	exit 1;
		1310	}
		1311
		1312	warn $msg;
		1313	}
		1314
		1315	$done{$k} = delete $todo{$k};
		1316	push @EXTS, $v->{pkg};
		1317	$progress = 1;
1064	1	1318	}
1065	} or warn "$ext not loaded: $@";	1319
		1320	skip:
		1321	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1322	unless $progress;
		1323	}
1066	}	1324	};
1067	}	1325	}
1068		1326
1069	#############################################################################	1327	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1328
1072	*cf::mapsupport::on_clean = sub {	1329	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1330
1085	=head2 CORE EXTENSIONS	1331	=head2 CORE EXTENSIONS
1086		1332
1087	Functions and methods that extend core crossfire objects.	1333	Functions and methods that extend core crossfire objects.
1088		1334
…		…
1094		1340
1095	=head3 cf::player	1341	=head3 cf::player
1096		1342
1097	=over 4	1343	=over 4
1098		1344
		1345	=item cf::player::num_playing
		1346
		1347	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1348
		1349	=cut
		1350
		1351	sub num_playing {
		1352	scalar grep
		1353	$_->ob->map
		1354	&& !$_->hidden
		1355	&& !$_->ob->flag (cf::FLAG_WIZ),
		1356	cf::player::list
		1357	}
		1358
1099	=item cf::player::find $login	1359	=item cf::player::find $login
1100		1360
1101	Returns the given player object, loading it if necessary (might block).	1361	Returns the given player object, loading it if necessary (might block).
1102		1362
1103	=cut	1363	=cut
1104		1364
1105	sub playerdir($) {	1365	sub playerdir($) {
1106	cf::localdir	1366	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1367	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1368	}
1112		1369
1113	sub path($) {	1370	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1371	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1372
1116	(playerdir $login) . "/$login.pl"	1373	(playerdir $login) . "/playerdata"
1117	}	1374	}
1118		1375
1119	sub find_active($) {	1376	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1377	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1378	and $cf::PLAYER{$_[0]}->active
…		…
1124		1381
1125	sub exists($) {	1382	sub exists($) {
1126	my ($login) = @_;	1383	my ($login) = @_;
1127		1384
1128	$cf::PLAYER{$login}	1385	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1386	or cf::sync_job { !aio_stat path $login }
1130	}	1387	}
1131		1388
1132	sub find($) {	1389	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1390	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1391	my $login = $_[0];
1135		1392
1136	my $guard = cf::lock_acquire "user_find:$login";	1393	my $guard = cf::lock_acquire "user_find:$login";
1137		1394
1138	$cf::PLAYER{$_[0]} || do {	1395	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1396	# rename old playerfiles to new ones
		1397	#TODO: remove when no longer required
		1398	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1399	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1400	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1401	aio_unlink +(playerdir $login) . "/$login.pl";
		1402
		1403	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1404	or return;
		1405
		1406	my $pl = cf::player::load_pl $f
		1407	or return;
		1408	local $cf::PLAYER_LOADING{$login} = $pl;
		1409	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1410	$cf::PLAYER{$login} = $pl
1142	}	1411	}
1143	}	1412	}
1144	}	1413	}
1145		1414
…		…
1155		1424
1156	aio_mkdir playerdir $pl, 0770;	1425	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1426	$pl->{last_save} = $cf::RUNTIME;
1158		1427
1159	$pl->save_pl ($path);	1428	$pl->save_pl ($path);
1160	Coro::cede;	1429	cf::cede_to_tick;
1161	}	1430	}
1162		1431
1163	sub new($) {	1432	sub new($) {
1164	my ($login) = @_;	1433	my ($login) = @_;
1165		1434
…		…
1171	$cf::PLAYER{$login} = $self;	1440	$cf::PLAYER{$login} = $self;
1172		1441
1173	$self	1442	$self
1174	}	1443	}
1175		1444
		1445	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1446
		1447	=cut
		1448
		1449	sub send_msg {
		1450	my $ns = shift->ns
		1451	or return;
		1452	$ns->send_msg (@_);
		1453	}
		1454
1176	=item $pl->quit_character	1455	=item $pl->quit_character
1177		1456
1178	Nukes the player without looking back. If logged in, the connection will	1457	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1458	be destroyed. May block for a long time.
1180		1459
1181	=cut	1460	=cut
1182		1461
1183	sub quit_character {	1462	sub quit_character {
1184	my ($pl) = @_;	1463	my ($pl) = @_;
		1464
		1465	my $name = $pl->ob->name;
1185		1466
1186	$pl->{deny_save} = 1;	1467	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1468	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1469
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1470	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1475	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1476	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1477	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1478	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1479	$pl->destroy;
		1480
		1481	my $prefix = qr<^~\Q$name\E/>;
		1482
		1483	# nuke player maps
		1484	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1485
1199	IO::AIO::aio_rmtree $temp;	1486	IO::AIO::aio_rmtree $temp;
		1487	}
		1488
		1489	=item $pl->kick
		1490
		1491	Kicks a player out of the game. This destroys the connection.
		1492
		1493	=cut
		1494
		1495	sub kick {
		1496	my ($pl, $kicker) = @_;
		1497
		1498	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1499	$pl->killer ("kicked");
		1500	$pl->ns->destroy;
1200	}	1501	}
1201		1502
1202	=item cf::player::list_logins	1503	=item cf::player::list_logins
1203		1504
1204	Returns am arrayref of all valid playernames in the system, can take a	1505	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1506	while and may block, so not sync_job-capable, ever.
1206		1507
1207	=cut	1508	=cut
1208		1509
1209	sub list_logins {	1510	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1511	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1512	or return [];
1212		1513
1213	my @logins;	1514	my @logins;
1214		1515
1215	for my $login (@$dirs) {	1516	for my $login (@$dirs) {
		1517	my $path = path $login;
		1518
		1519	# a .pst is a dead give-away for a valid player
		1520	unless (-e "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1522	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
1219		1525
1220	utf8::decode $login;	1526	utf8::decode $login;
1221	push @logins, $login;	1527	push @logins, $login;
1222	}	1528	}
1223		1529
1224	\@logins	1530	\@logins
1225	}	1531	}
1226		1532
1227	=item $player->maps	1533	=item $player->maps
1228		1534
1229	Returns an arrayref of cf::path's of all maps that are private for this	1535	Returns an arrayref of map paths that are private for this
1230	player. May block.	1536	player. May block.
1231		1537
1232	=cut	1538	=cut
1233		1539
1234	sub maps($) {	1540	sub maps($) {
1235	my ($pl) = @_;	1541	my ($pl) = @_;
		1542
		1543	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1544
1237	my $files = aio_readdir playerdir $pl	1545	my $files = aio_readdir playerdir $pl
1238	or return;	1546	or return;
1239		1547
1240	my @paths;	1548	my @paths;
1241		1549
1242	for (@$files) {	1550	for (@$files) {
1243	utf8::decode $_;	1551	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1552	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1553	next unless /^$PATH_SEP/o;
1246		1554
1247	s/$PATH_SEP/\//g;	1555	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1556	}
1250		1557
1251	\@paths	1558	\@paths
1252	}	1559	}
1253		1560
		1561	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1562
		1563	Expand crossfire pod fragments into protocol xml.
		1564
		1565	=cut
		1566
		1567	use re 'eval';
		1568
		1569	my $group;
		1570	my $interior; $interior = qr{
		1571	# match a pod interior sequence sans C<< >>
		1572	(?:
		1573	\ (.*?)\ (?{ $group = $^N })
		1574	| < (??{$interior}) >
		1575	)
		1576	}x;
		1577
		1578	sub expand_cfpod {
		1579	my ($self, $pod) = @_;
		1580
		1581	my $xml;
		1582
		1583	while () {
		1584	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1585	$group = $1;
		1586
		1587	$group =~ s/&/&amp;/g;
		1588	$group =~ s/</&lt;/g;
		1589
		1590	$xml .= $group;
		1591	} elsif ($pod =~ m%\G
		1592	([BCGHITU])
		1593	<
		1594	(?:
		1595	([^<>]*) (?{ $group = $^N })
		1596	| < $interior >
		1597	)
		1598	>
		1599	%gcsx
		1600	) {
		1601	my ($code, $data) = ($1, $group);
		1602
		1603	if ($code eq "B") {
		1604	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1605	} elsif ($code eq "I") {
		1606	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1607	} elsif ($code eq "U") {
		1608	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1609	} elsif ($code eq "C") {
		1610	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1611	} elsif ($code eq "T") {
		1612	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1613	} elsif ($code eq "G") {
		1614	my ($male, $female) = split /\|/, $data;
		1615	$data = $self->gender ? $female : $male;
		1616	$xml .= expand_cfpod ($self, $data);
		1617	} elsif ($code eq "H") {
		1618	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1619	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1620	"")
		1621	[$self->{hintmode}];
		1622	} else {
		1623	$xml .= "error processing '$code($data)' directive";
		1624	}
		1625	} else {
		1626	if ($pod =~ /\G(.+)/) {
		1627	warn "parse error while expanding $pod (at $1)";
		1628	}
		1629	last;
		1630	}
		1631	}
		1632
		1633	for ($xml) {
		1634	# create single paragraphs (very hackish)
		1635	s/(?<=\S)\n(?=\w)/ /g;
		1636
		1637	# compress some whitespace
		1638	s/\s+\n/\n/g; # ws line-ends
		1639	s/\n\n+/\n/g; # double lines
		1640	s/^\n+//; # beginning lines
		1641	s/\n+$//; # ending lines
		1642	}
		1643
		1644	$xml
		1645	}
		1646
		1647	no re 'eval';
		1648
		1649	sub hintmode {
		1650	$_[0]{hintmode} = $_[1] if @_ > 1;
		1651	$_[0]{hintmode}
		1652	}
		1653
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1654	=item $player->ext_reply ($msgid, @msg)
1255		1655
1256	Sends an ext reply to the player.	1656	Sends an ext reply to the player.
1257		1657
1258	=cut	1658	=cut
1259		1659
1260	sub ext_reply($$$%) {	1660	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1661	my ($self, $id, @msg) = @_;
1262		1662
1263	$msg{msgid} = $id;	1663	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1664	}
1267		1665
1268	package cf;	1666	=item $player->ext_msg ($type, @msg)
		1667
		1668	Sends an ext event to the client.
		1669
		1670	=cut
		1671
		1672	sub ext_msg($$@) {
		1673	my ($self, $type, @msg) = @_;
		1674
		1675	$self->ns->ext_msg ($type, @msg);
		1676	}
		1677
		1678	=head3 cf::region
		1679
		1680	=over 4
		1681
		1682	=cut
		1683
		1684	package cf::region;
		1685
		1686	=item cf::region::find_by_path $path
		1687
		1688	Tries to decuce the likely region for a map knowing only its path.
		1689
		1690	=cut
		1691
		1692	sub find_by_path($) {
		1693	my ($path) = @_;
		1694
		1695	my ($match, $specificity);
		1696
		1697	for my $region (list) {
		1698	if ($region->{match} && $path =~ $region->{match}) {
		1699	($match, $specificity) = ($region, $region->specificity)
		1700	if $region->specificity > $specificity;
		1701	}
		1702	}
		1703
		1704	$match
		1705	}
1269		1706
1270	=back	1707	=back
1271
1272		1708
1273	=head3 cf::map	1709	=head3 cf::map
1274		1710
1275	=over 4	1711	=over 4
1276		1712
…		…
1279	package cf::map;	1715	package cf::map;
1280		1716
1281	use Fcntl;	1717	use Fcntl;
1282	use Coro::AIO;	1718	use Coro::AIO;
1283		1719
		1720	use overload
		1721	'""' => \&as_string,
		1722	fallback => 1;
		1723
1284	our $MAX_RESET = 3600;	1724	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1725	our $DEFAULT_RESET = 3000;
1286		1726
1287	sub generate_random_map {	1727	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1728	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1730	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1734	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1735	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1736	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1737	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1738	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1739	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1741	(cf::region::find $rmp->{region}), $rmp->{custom}
		1742	)
		1743	}
		1744
		1745	=item cf::map->register ($regex, $prio)
		1746
		1747	Register a handler for the map path matching the given regex at the
		1748	givne priority (higher is better, built-in handlers have priority 0, the
		1749	default).
		1750
		1751	=cut
		1752
		1753	sub register {
		1754	my (undef, $regex, $prio) = @_;
		1755	my $pkg = caller;
		1756
		1757	no strict;
		1758	push @{"$pkg\::ISA"}, __PACKAGE__;
		1759
		1760	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1761	}
		1762
		1763	# also paths starting with '/'
		1764	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1765
		1766	sub thawer_merge {
		1767	my ($self, $merge) = @_;
		1768
		1769	# we have to keep some variables in memory intact
		1770	local $self->{path};
		1771	local $self->{load_path};
		1772
		1773	$self->SUPER::thawer_merge ($merge);
		1774	}
		1775
		1776	sub normalise {
		1777	my ($path, $base) = @_;
		1778
		1779	$path = "$path"; # make sure its a string
		1780
		1781	$path =~ s/\.map$//;
		1782
		1783	# map plan:
		1784	#
		1785	# /! non-realised random map exit (special hack!)
		1786	# {... are special paths that are not being touched
		1787	# ?xxx/... are special absolute paths
		1788	# ?random/... random maps
		1789	# /... normal maps
		1790	# ~user/... per-player map of a specific user
		1791
		1792	$path =~ s/$PATH_SEP/\//go;
		1793
		1794	# treat it as relative path if it starts with
		1795	# something that looks reasonable
		1796	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1797	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1798
		1799	$base =~ s{[^/]+/?$}{};
		1800	$path = "$base/$path";
		1801	}
		1802
		1803	for ($path) {
		1804	redo if s{//}{/};
		1805	redo if s{/\.?/}{/};
		1806	redo if s{/[^/]+/\.\./}{/};
		1807	}
		1808
		1809	$path
		1810	}
		1811
		1812	sub new_from_path {
		1813	my (undef, $path, $base) = @_;
		1814
		1815	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1816
		1817	$path = normalise $path, $base;
		1818
		1819	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1820	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1821	my $self = bless cf::map::new, $pkg;
		1822	$self->{path} = $path; $self->path ($path);
		1823	$self->init; # pass $1 etc.
		1824	return $self;
		1825	}
		1826	}
		1827
		1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1829	()
		1830	}
		1831
		1832	sub init {
		1833	my ($self) = @_;
		1834
		1835	$self
		1836	}
		1837
		1838	sub as_string {
		1839	my ($self) = @_;
		1840
		1841	"$self->{path}"
		1842	}
		1843
		1844	# the displayed name, this is a one way mapping
		1845	sub visible_name {
		1846	&as_string
		1847	}
		1848
		1849	# the original (read-only) location
		1850	sub load_path {
		1851	my ($self) = @_;
		1852
		1853	"$MAPDIR/$self->{path}.map"
		1854	}
		1855
		1856	# the temporary/swap location
		1857	sub save_path {
		1858	my ($self) = @_;
		1859
		1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1861	"$TMPDIR/$path.map"
		1862	}
		1863
		1864	# the unique path, undef == no special unique path
		1865	sub uniq_path {
		1866	my ($self) = @_;
		1867
		1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1869	"$UNIQUEDIR/$path"
1304	}	1870	}
1305		1871
1306	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1307	# all maps in C++...	1873	# all maps in C++...
1308	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1310		1876
1311	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1313	}	1879	}
1314		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
		1889	sub unlink_save {
		1890	my ($self) = @_;
		1891
		1892	utf8::encode (my $save = $self->save_path);
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1895	}
		1896
1315	sub try_load_header($) {	1897	sub load_header_from($) {
1316	my ($path) = @_;	1898	my ($self, $path) = @_;
1317		1899
1318	utf8::encode $path;	1900	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1320	or return;	1902	or return;
1321		1903
1322	my $map = cf::map::new	1904	$self->_load_header ($f)
1323	or return;	1905	or return;
1324		1906
1325	# for better error messages only, will be overwritten	1907	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1908	$f->resolve_delayed_derefs;
1327		1909
1328	$map->load_header ($path)	1910	$self->{load_path} = $path;
		1911
		1912	1
		1913	}
		1914
		1915	sub load_header_orig {
		1916	my ($self) = @_;
		1917
		1918	$self->load_header_from ($self->load_path)
		1919	}
		1920
		1921	sub load_header_temp {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->save_path)
		1925	}
		1926
		1927	sub prepare_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->last_access ((delete $self->{last_access})
		1931	|| $cf::RUNTIME); #d#
		1932	# safety
		1933	$self->{instantiate_time} = $cf::RUNTIME
		1934	if $self->{instantiate_time} > $cf::RUNTIME;
		1935	}
		1936
		1937	sub prepare_orig {
		1938	my ($self) = @_;
		1939
		1940	$self->{load_original} = 1;
		1941	$self->{instantiate_time} = $cf::RUNTIME;
		1942	$self->last_access ($cf::RUNTIME);
		1943	$self->instantiate;
		1944	}
		1945
		1946	sub load_header {
		1947	my ($self) = @_;
		1948
		1949	if ($self->load_header_temp) {
		1950	$self->prepare_temp;
		1951	} else {
		1952	$self->load_header_orig
1329	or return;	1953	or return;
		1954	$self->prepare_orig;
		1955	}
1330		1956
1331	$map->{load_path} = $path;	1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
1332		1959
1333	$map	1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
		1962
		1963	1
1334	}	1964	}
1335		1965
1336	sub find;	1966	sub find;
1337	sub find {	1967	sub find {
1338	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1339		1969
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1345	cf::lock_wait "map_find:$key";	1973	cf::lock_wait "map_find:$path";
1346		1974
1347	$cf::MAP{$key} || do {	1975	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1976	my $guard1 = cf::lock_acquire "map_find:$path";
		1977	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1349		1978
1350	# do it the slow way	1979	my $map = new_from_path cf::map $path
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1980	or return;
1369		1981
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1382		1983
1383	Coro::cede;	1984	$map->load_header
		1985	or return;
1384		1986
1385	if ($map->should_reset) {	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1988	# doing this can freeze the server in a sync job, obviously
		1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard1;
		1991	undef $guard2;
1386	$map->reset;	1992	$map->reset;
1387	undef $guard;
1388	$map = find $path	1993	return find $path;
1389	or return;
1390	}	1994	}
1391		1995
1392	$cf::MAP{$key} = $map	1996	$cf::MAP{$path} = $map
1393	}	1997	}
1394	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1395		2002
1396	sub load {	2003	sub load {
1397	my ($self) = @_;	2004	my ($self) = @_;
1398		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1399	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2011	my $guard = cf::lock_acquire "map_data:$path";
1401		2012
		2013	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2015
1404	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1405		2017
1406	$self->alloc;	2018	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2019
		2020	$self->pre_load;
		2021	cf::cede_to_tick;
		2022
		2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1408	or return;	2026	or return;
1409		2027
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	2029	if delete $self->{load_original};
1412		2030
1413	if (my $uniq = $path->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2032	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2035	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1418	}	2039	}
1419	}	2040	}
1420		2041
1421	Coro::cede;	2042	$f->resolve_delayed_derefs;
1422		2043
		2044	cf::cede_to_tick;
1423	# now do the right thing for maps	2045	# now do the right thing for maps
1424	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2048	unless $self->difficulty;
		2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1436	$self->activate;	2058	$self->activate;
1437	}	2059	}
1438		2060
1439	Coro::cede;	2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
1440		2063
1441	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_IN_MEMORY);
		2065	}
		2066
		2067	$self->post_load;
		2068	}
		2069
		2070	sub customise_for {
		2071	my ($self, $ob) = @_;
		2072
		2073	return find "~" . $ob->name . "/" . $self->{path}
		2074	if $self->per_player;
		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
		2079	$self
		2080	}
		2081
		2082	# find and load all maps in the 3x3 area around a map
		2083	sub load_neighbours {
		2084	my ($map) = @_;
		2085
		2086	my @neigh; # diagonal neighbours
		2087
		2088	for (0 .. 3) {
		2089	my $neigh = $map->tile_path ($_)
		2090	or next;
		2091	$neigh = find $neigh, $map
		2092	or next;
		2093	$neigh->load;
		2094
		2095	push @neigh,
		2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2098	}
		2099
		2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
		2102	my $neigh = find $path, $origin
		2103	or next;
		2104	$neigh->load;
		2105	}
1442	}	2106	}
1443		2107
1444	sub find_sync {	2108	sub find_sync {
1445	my ($path, $origin) = @_;	2109	my ($path, $origin) = @_;
1446		2110
1447	cf::sync_job { cf::map::find $path, $origin }	2111	cf::sync_job { find $path, $origin }
1448	}	2112	}
1449		2113
1450	sub do_load_sync {	2114	sub do_load_sync {
1451	my ($map) = @_;	2115	my ($map) = @_;
1452		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1453	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
		2121	}
		2122
		2123	our %MAP_PREFETCH;
		2124	our $MAP_PREFETCHER = undef;
		2125
		2126	sub find_async {
		2127	my ($path, $origin, $load) = @_;
		2128
		2129	$path = normalise $path, $origin && $origin->{path};
		2130
		2131	if (my $map = $cf::MAP{$path}) {
		2132	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2133	}
		2134
		2135	$MAP_PREFETCH{$path} |= $load;
		2136
		2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
		2140	while (%MAP_PREFETCH) {
		2141	while (my ($k, $v) = each %MAP_PREFETCH) {
		2142	if (my $map = find $k) {
		2143	$map->load if $v;
		2144	}
		2145
		2146	delete $MAP_PREFETCH{$k};
		2147	}
		2148	}
		2149	undef $MAP_PREFETCHER;
		2150	};
		2151	$MAP_PREFETCHER->prio (6);
		2152
		2153	()
1454	}	2154	}
1455		2155
1456	sub save {	2156	sub save {
1457	my ($self) = @_;	2157	my ($self) = @_;
1458		2158
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1460		2160
1461	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1462		2162
1463	return unless $self->dirty;	2163	return unless $self->dirty;
1464		2164
1465	my $save = $self->{path}->save_path; utf8::encode $save;	2165	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2166	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		2167
1468	$self->{load_path} = $save;	2168	$self->{load_path} = $save;
1469		2169
1470	return if $self->{deny_save};	2170	return if $self->{deny_save};
1471		2171
1472	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1473		2173
1474	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1475	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1476	};	2177	};
1477		2178
1478	if ($uniq) {	2179	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	2181	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	2182	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	2184	}
1484	}	2185	}
1485		2186
1486	sub swap_out {	2187	sub swap_out {
1487	my ($self) = @_;	2188	my ($self) = @_;
1488		2189
1489	# save first because save cedes	2190	# save first because save cedes
1490	$self->save;	2191	$self->save;
1491		2192
1492	my $lock = cf::lock_acquire "map_data:" . $self->path;	2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1493		2194
1494	return if $self->players;	2195	return if $self->players;
1495	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1496	return if $self->{deny_save};	2197	return if $self->{deny_save};
1497		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1498	$self->clear;	2203	$self->clear;
1499	$self->in_memory (cf::MAP_SWAPPED);
1500	}	2204	}
1501		2205
1502	sub reset_at {	2206	sub reset_at {
1503	my ($self) = @_;	2207	my ($self) = @_;
1504		2208
1505	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};
1507	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1508		2211
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		2214
…		…
1516	my ($self) = @_;	2219	my ($self) = @_;
1517		2220
1518	$self->reset_at <= $cf::RUNTIME	2221	$self->reset_at <= $cf::RUNTIME
1519	}	2222	}
1520		2223
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	2224	sub reset {
1543	my ($self) = @_;	2225	my ($self) = @_;
1544		2226
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		2228
1547	return if $self->players;	2229	return if $self->players;
1548	return if $self->{path}{user_rel};#d#
1549		2230
1550	warn "resetting map ", $self->path;#d#	2231	warn "resetting map ", $self->path;
		2232
		2233	$self->in_memory (cf::MAP_SWAPPED);
		2234
		2235	# need to save uniques path
		2236	unless ($self->{deny_save}) {
		2237	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2238
		2239	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2240	if $uniq;
		2241	}
1551		2242
1552	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1553		2244
		2245	$self->deactivate;
1554	$_->clear_links_to ($self) for values %cf::MAP;	2246	$_->clear_links_to ($self) for values %cf::MAP;
		2247	$self->clear;
1555		2248
1556	$self->unlink_save;	2249	$self->unlink_save;
1557	$self->destroy;	2250	$self->destroy;
1558	}	2251	}
1559		2252
1560	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1561		2254
1562	sub nuke {	2255	sub nuke {
1563	my ($self) = @_;	2256	my ($self) = @_;
1564		2257
		2258	{
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
		2261	delete $cf::MAP{$self->path};
		2262
		2263	$self->unlink_save;
		2264
		2265	bless $self, "cf::map";
		2266	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2270
		2271	$cf::MAP{$self->path} = $self;
		2272	}
		2273
1568	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
1569	}	2275	}
1570		2276
1571	sub customise_for {	2277	=item $maps = cf::map::tmp_maps
1572	my ($map, $ob) = @_;
1573		2278
1574	if ($map->per_player) {	2279	Returns an arrayref with all map paths of currently instantiated and saved
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2280	maps. May block.
		2281
		2282	=cut
		2283
		2284	sub tmp_maps() {
1576	}	2285	[
		2286	map {
		2287	utf8::decode $_;
		2288	/\.map$/
		2289	? normalise $_
		2290	: ()
		2291	} @{ aio_readdir $TMPDIR or [] }
		2292	]
		2293	}
1577		2294
1578	$map	2295	=item $maps = cf::map::random_maps
		2296
		2297	Returns an arrayref with all map paths of currently instantiated and saved
		2298	random maps. May block.
		2299
		2300	=cut
		2301
		2302	sub random_maps() {
		2303	[
		2304	map {
		2305	utf8::decode $_;
		2306	/\.map$/
		2307	? normalise "?random/$_"
		2308	: ()
		2309	} @{ aio_readdir $RANDOMDIR or [] }
		2310	]
		2311	}
		2312
		2313	=item cf::map::unique_maps
		2314
		2315	Returns an arrayref of paths of all shared maps that have
		2316	instantiated unique items. May block.
		2317
		2318	=cut
		2319
		2320	sub unique_maps() {
		2321	[
		2322	map {
		2323	utf8::decode $_;
		2324	/\.map$/
		2325	? normalise $_
		2326	: ()
		2327	} @{ aio_readdir $UNIQUEDIR or [] }
		2328	]
1579	}	2329	}
1580		2330
1581	package cf;	2331	package cf;
1582		2332
1583	=back	2333	=back
…		…
1601	map { $_, inv_recursive_ $_->inv } @_	2351	map { $_, inv_recursive_ $_->inv } @_
1602	}	2352	}
1603		2353
1604	sub inv_recursive {	2354	sub inv_recursive {
1605	inv_recursive_ inv $_[0]	2355	inv_recursive_ inv $_[0]
		2356	}
		2357
		2358	=item $ref = $ob->ref
		2359
		2360	creates and returns a persistent reference to an objetc that can be stored as a string.
		2361
		2362	=item $ob = cf::object::deref ($refstring)
		2363
		2364	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2365	even if the object actually exists. May block.
		2366
		2367	=cut
		2368
		2369	sub deref {
		2370	my ($ref) = @_;
		2371
		2372	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2373	my ($uuid, $name) = ($1, $2);
		2374	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2375	or return;
		2376	$pl->ob->uuid eq $uuid
		2377	or return;
		2378
		2379	$pl->ob
		2380	} else {
		2381	warn "$ref: cannot resolve object reference\n";
		2382	undef
		2383	}
1606	}	2384	}
1607		2385
1608	package cf;	2386	package cf;
1609		2387
1610	=back	2388	=back
…		…
1629		2407
1630	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1631		2409
1632	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1633	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1634	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1635	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1636	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1637	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1638	}	2435	}
1639		2436
1640	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1641		2438
1642	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1655		2452
1656	=item $player_object->enter_link	2453	=item $player_object->enter_link
1657		2454
1658	Freezes the player and moves him/her to a special map (C<{link}>).	2455	Freezes the player and moves him/her to a special map (C<{link}>).
1659		2456
1660	The player should be reaosnably safe there for short amounts of time. You	2457	The player should be reasonably safe there for short amounts of time. You
1661	I<MUST> call C<leave_link> as soon as possible, though.	2458	I<MUST> call C<leave_link> as soon as possible, though.
1662		2459
		2460	Will never block.
		2461
1663	=item $player_object->leave_link ($map, $x, $y)	2462	=item $player_object->leave_link ($map, $x, $y)
1664		2463
1665	Moves the player out of the specila link map onto the given map. If the	2464	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	2465	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	2466	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	2467	fails, to the emergency map position.
1669		2468
1670	Might block.	2469	Might block.
1671		2470
1672	=cut	2471	=cut
		2472
		2473	sub link_map {
		2474	unless ($LINK_MAP) {
		2475	$LINK_MAP = cf::map::find "{link}"
		2476	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2477	$LINK_MAP->load;
		2478	}
		2479
		2480	$LINK_MAP
		2481	}
1673		2482
1674	sub cf::object::player::enter_link {	2483	sub cf::object::player::enter_link {
1675	my ($self) = @_;	2484	my ($self) = @_;
1676		2485
1677	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
1678		2487
1679	return if $self->map == $LINK_MAP;	2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		2489
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	2491	if $self->map && $self->map->{path} ne "{link}";
1683		2492
1684	$self->enter_map ($LINK_MAP, 20, 20);	2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	2494	}
1686		2495
1687	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1689		2500
1690	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1691		2502
1692	unless ($map) {	2503	unless ($map) {
1693	# restore original map position	2504	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1710		2521
1711	$map->load;	2522	$map->load;
		2523	$map->load_neighbours;
1712		2524
1713	return unless $self->contr->active;	2525	return unless $self->contr->active;
1714	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1716	}	2530	}
1717		2531
1718	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1719	on_logout => sub {
1720	my ($pl) = @_;
1721		2533
1722	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1723	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1724	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1725	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1726	};	2538	be called at the end of this process.
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731		2539
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)
1751
1752	=cut	2540	=cut
		2541
		2542	our $GOTOGEN;
1753		2543
1754	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	2545	my ($self, $path, $x, $y, $check, $done) = @_;
1756		2546
1757	$path = new cf::path $path;	2547	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	2548	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		2549
1760	$self->enter_link;	2550	$self->enter_link;
1761		2551
1762	(async {	2552	(async {
1763	my $map = cf::map::find $path->as_string;	2553	$Coro::current->{desc} = "player::goto $path $x $y";
		2554
		2555	# *tag paths override both path and x|y
		2556	if ($path =~ /^\*(.*)$/) {
		2557	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2558	my $ob = $obs[rand @obs];
		2559
		2560	# see if we actually can go there
		2561	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2562	$ob = $obs[rand @obs];
		2563	} else {
		2564	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566	# else put us there anyways for now #d#
		2567
		2568	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2569	} else {
		2570	($path, $x, $y) = (undef, undef, undef);
		2571	}
		2572	}
		2573
		2574	my $map = eval {
		2575	my $map = defined $path ? cf::map::find $path : undef;
		2576
		2577	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	2578	$map = $map->customise_for ($self);
1765		2579	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	2580	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
1770		2583
		2584	$map
		2585	};
		2586
		2587	if ($@) {
		2588	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	LOG llevError | logBacktrace, Carp::longmess $@;
		2590	}
		2591
		2592	if ($gen == $self->{_goto_generation}) {
		2593	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1772	})->prio (1);	2598	})->prio (1);
1773	}	2599	}
1774		2600
1775	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1776		2602
…		…
1778		2604
1779	sub parse_random_map_params {	2605	sub parse_random_map_params {
1780	my ($spec) = @_;	2606	my ($spec) = @_;
1781		2607
1782	my $rmp = { # defaults	2608	my $rmp = { # defaults
1783	xsize => 10,	2609	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2610	ysize => (cf::rndm 15, 40),
		2611	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2612	#layout => string,
1785	};	2613	};
1786		2614
1787	for (split /\n/, $spec) {	2615	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2616	my ($k, $v) = split /\s+/, $_, 2;
1789		2617
…		…
1793	$rmp	2621	$rmp
1794	}	2622	}
1795		2623
1796	sub prepare_random_map {	2624	sub prepare_random_map {
1797	my ($exit) = @_;	2625	my ($exit) = @_;
		2626
		2627	my $guard = cf::lock_acquire "exit_prepare:$exit";
1798		2628
1799	# all this does is basically replace the /! path by	2629	# all this does is basically replace the /! path by
1800	# a new random map path (?random/...) with a seed	2630	# a new random map path (?random/...) with a seed
1801	# that depends on the exit object	2631	# that depends on the exit object
1802		2632
1803	my $rmp = parse_random_map_params $exit->msg;	2633	my $rmp = parse_random_map_params $exit->msg;
1804		2634
1805	if ($exit->map) {	2635	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2636	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2637	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2638	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1810	}	2640	}
1811		2641
1812	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1813		2643
1814	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1815	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
		2646	my $meta = "$RANDOMDIR/$md5.meta";
1816		2647
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2648	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2649	aio_write $fh, 0, (length $data), $data, 0;
		2650	undef $fh;
		2651	aio_rename "$meta~", $meta;
1819		2652
1820	$exit->slaying ("?random/$md5");	2653	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2654	$exit->msg (undef);
1822	}	2655	}
1823	}	2656	}
…		…
1825	sub cf::object::player::enter_exit {	2658	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2659	my ($self, $exit) = @_;
1827		2660
1828	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1829		2662
		2663	if ($exit->slaying eq "/!") {
		2664	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2665	# the problem is that $exit might not survive long enough
		2666	# so it needs to be done right now, right here
		2667	cf::sync_job { prepare_random_map $exit };
		2668	}
		2669
		2670	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2671	my $hp = $exit->stats->hp;
		2672	my $sp = $exit->stats->sp;
		2673
1830	$self->enter_link;	2674	$self->enter_link;
1831		2675
		2676	# if exit is damned, update players death & WoR home-position
		2677	$self->contr->savebed ($slaying, $hp, $sp)
		2678	if $exit->flag (FLAG_DAMNED);
		2679
1832	(async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
1833	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
1834	unless (eval {	2684	unless (eval {
1835	prepare_random_map $exit	2685	$self->goto ($slaying, $hp, $sp);
1836	if $exit->slaying eq "/!";
1837
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1840		2686
1841	1;	2687	1;
1842	}) {	2688	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "I'll try to bring you back to the map you were before. "	2690	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2691	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2693
1848	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2695	$self->leave_link;
1850	}	2696	}
1851	})->prio (1);	2697	})->prio (1);
…		…
1864		2710
1865	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1867		2713
1868	utf8::encode $text;	2714	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2716	}
1871		2717
		2718	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2719
		2720	Send a drawinfo or msg packet to the client, formatting the msg for the
		2721	client if neccessary. C<$type> should be a string identifying the type of
		2722	the message, with C<log> being the default. If C<$color> is negative, suppress
		2723	the message unless the client supports the msg packet.
		2724
		2725	=cut
		2726
		2727	# non-persistent channels (usually the info channel)
		2728	our %CHANNEL = (
		2729	"c/identify" => {
		2730	id => "infobox",
		2731	title => "Identify",
		2732	reply => undef,
		2733	tooltip => "Items recently identified",
		2734	},
		2735	"c/examine" => {
		2736	id => "infobox",
		2737	title => "Examine",
		2738	reply => undef,
		2739	tooltip => "Signs and other items you examined",
		2740	},
		2741	"c/book" => {
		2742	id => "infobox",
		2743	title => "Book",
		2744	reply => undef,
		2745	tooltip => "The contents of a note or book",
		2746	},
		2747	"c/lookat" => {
		2748	id => "infobox",
		2749	title => "Look",
		2750	reply => undef,
		2751	tooltip => "What you saw there",
		2752	},
		2753	"c/who" => {
		2754	id => "infobox",
		2755	title => "Players",
		2756	reply => undef,
		2757	tooltip => "Shows players who are currently online",
		2758	},
		2759	"c/body" => {
		2760	id => "infobox",
		2761	title => "Body Parts",
		2762	reply => undef,
		2763	tooltip => "Shows which body parts you posess and are available",
		2764	},
		2765	"c/uptime" => {
		2766	id => "infobox",
		2767	title => "Uptime",
		2768	reply => undef,
		2769	tooltip => "How long the server has been running since last restart",
		2770	},
		2771	"c/mapinfo" => {
		2772	id => "infobox",
		2773	title => "Map Info",
		2774	reply => undef,
		2775	tooltip => "Information related to the maps",
		2776	},
		2777	);
		2778
		2779	sub cf::client::send_msg {
		2780	my ($self, $channel, $msg, $color, @extra) = @_;
		2781
		2782	$msg = $self->pl->expand_cfpod ($msg);
		2783
		2784	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2785
		2786	# check predefined channels, for the benefit of C
		2787	if ($CHANNEL{$channel}) {
		2788	$channel = $CHANNEL{$channel};
		2789
		2790	$self->ext_msg (channel_info => $channel)
		2791	if $self->can_msg;
		2792
		2793	$channel = $channel->{id};
		2794
		2795	} elsif (ref $channel) {
		2796	# send meta info to client, if not yet sent
		2797	unless (exists $self->{channel}{$channel->{id}}) {
		2798	$self->{channel}{$channel->{id}} = $channel;
		2799	$self->ext_msg (channel_info => $channel)
		2800	if $self->can_msg;
		2801	}
		2802
		2803	$channel = $channel->{id};
		2804	}
		2805
		2806	return unless @extra || length $msg;
		2807
		2808	if ($self->can_msg) {
		2809	# default colour, mask it out
		2810	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2811	if $color & cf::NDI_DEF;
		2812
		2813	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2814	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2815	} else {
		2816	if ($color >= 0) {
		2817	# replace some tags by gcfclient-compatible ones
		2818	for ($msg) {
		2819	1 while
		2820	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2821	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2822	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2823	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2824	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2825	}
		2826
		2827	$color &= cf::NDI_COLOR_MASK;
		2828
		2829	utf8::encode $msg;
		2830
		2831	if (0 && $msg =~ /\[/) {
		2832	# COMMAND/INFO
		2833	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2834	} else {
		2835	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2836	$self->send_packet ("drawinfo $color $msg")
		2837	}
		2838	}
		2839	}
		2840	}
		2841
		2842	=item $client->ext_msg ($type, @msg)
		2843
		2844	Sends an ext event to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_msg($$@) {
		2849	my ($self, $type, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2853	} elsif ($self->extcmd == 1) { # TODO: remove
		2854	push @msg, msgtype => "event_$type";
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2856	}
		2857	}
		2858
		2859	=item $client->ext_reply ($msgid, @msg)
		2860
		2861	Sends an ext reply to the client.
		2862
		2863	=cut
		2864
		2865	sub cf::client::ext_reply($$@) {
		2866	my ($self, $id, @msg) = @_;
		2867
		2868	if ($self->extcmd == 2) {
		2869	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2870	} elsif ($self->extcmd == 1) {
		2871	#TODO: version 1, remove
		2872	unshift @msg, msgtype => "reply", msgid => $id;
		2873	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2874	}
		2875	}
1872		2876
1873	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1874		2878
1875	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1877	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1878		2882
1879	Queries can fail, so check the return code. Or don't, as queries will become	2883	Queries can fail, so check the return code. Or don't, as queries will
1880	reliable at some point in the future.	2884	become reliable at some point in the future.
1881		2885
1882	=cut	2886	=cut
1883		2887
1884	sub cf::client::query {	2888	sub cf::client::query {
1885	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1893	utf8::encode $text;	2897	utf8::encode $text;
1894	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1895		2899
1896	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
1897	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
1898	}	2904	}
1899		2905
1900	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
1901	on_reply => sub {	2912	on_reply => sub {
1902	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
1903		2914
1904	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
1905	# get handled first	2916	# get handled first
1906	my $queue = delete $ns->{query_queue}	2917	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	2918	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		2919
1909	(shift @$queue)->[1]->($msg);	2920	(shift @$queue)->[1]->($msg);
		2921	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		2922
1911	push @{ $ns->{query_queue} }, @$queue;	2923	push @{ $ns->{query_queue} }, @$queue;
1912		2924
1913	if (@{ $ns->{query_queue} } == @$queue) {	2925	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	2926	if (@$queue) {
…		…
1916	} else {	2928	} else {
1917	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1918	}	2930	}
1919	}	2931	}
1920	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($ns, $buf) = @_;
		2935
		2936	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2937
		2938	if (ref $msg) {
		2939	my ($type, $reply, @payload) =
		2940	"ARRAY" eq ref $msg
		2941	? @$msg
		2942	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2943
		2944	my @reply;
		2945
		2946	if (my $cb = $EXTICMD{$type}) {
		2947	@reply = $cb->($ns, @payload);
		2948	}
		2949
		2950	$ns->ext_reply ($reply, @reply)
		2951	if $reply;
		2952
		2953	} else {
		2954	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2955	}
		2956
		2957	cf::override;
		2958	},
1921	);	2959	);
1922		2960
1923	=item $client->async (\&cb)	2961	=item $client->async (\&cb)
1924		2962
1925	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
…		…
1966	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
1967	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
1968		3006
1969	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
1970		3008
1971	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
1972		3014
1973	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
1974		3016
1975	=pod	3017	=pod
1976		3018
1977	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
1978		3020
1979	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
1980	cf::object::player player	3025	cf::object::player
1981	cf::player peaceful	3026	player
1982	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
1983		3033
1984	=cut	3034	=cut
1985		3035
1986	for (	3036	for (
1987	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
1988	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
1989	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
1990	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
1991	) {	3043	) {
1992	no strict 'refs';	3044	no strict 'refs';
…		…
2063	=back	3115	=back
2064		3116
2065	=cut	3117	=cut
2066		3118
2067	#############################################################################	3119	#############################################################################
		3120	# the server's init and main functions
2068		3121
2069	=head2 EXTENSION DATABASE SUPPORT	3122	sub load_facedata($) {
		3123	my ($path) = @_;
2070		3124
2071	Crossfire maintains a very simple database for extension use. It can	3125	# HACK to clear player env face cache, we need some signal framework
2072	currently store anything that can be serialised using Storable, which	3126	# for this (global event?)
2073	excludes objects.	3127	%ext::player_env::MUSIC_FACE_CACHE = ();
2074		3128
2075	The parameter C<$family> should best start with the name of the extension	3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2076	using it, it should be unique.
2077		3130
2078	=over 4	3131	warn "loading facedata from $path\n";
2079		3132
2080	=item $hashref = cf::db_get $family	3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
2081		3136
2082	Return a hashref for use by the extension C<$family>, which can be	3137	$facedata = Coro::Storable::thaw $facedata;
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085		3138
2086	=item $value = cf::db_get $family => $key	3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
2087		3141
2088	Returns a single value from the database	3142	# patch in the exptable
2089		3143	$facedata->{resource}{"res/exp_table"} = {
2090	=item cf::db_put $family => $hashref	3144	type => FT_RSRC,
2091		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094
2095	=item cf::db_put $family => $key => $value
2096
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107
2108	=cut
2109
2110	our $DB;
2111
2112	{
2113	my $path = cf::localdir . "/database.pst";
2114
2115	sub db_load() {
2116	$DB = stat $path ? Storable::retrieve $path : { };
2117	}
2118
2119	my $pid;
2120
2121	sub db_save() {
2122	waitpid $pid, 0 if $pid;
2123	if (0 == ($pid = fork)) {
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	3146	};
		3147	cf::cede_to_tick;
2141		3148
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}	3149	{
		3150	my $faces = $facedata->{faceinfo};
2146		3151
2147	sub db_get($;$) {	3152	while (my ($face, $info) = each %$faces) {
2148	@_ >= 2	3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2149	? $DB->{$_[0]}{$_[1]}	3154	cf::face::set_visibility $idx, $info->{visibility};
2150	: ($DB->{$_[0]} ||= { })	3155	cf::face::set_magicmap $idx, $info->{magicmap};
2151	}	3156	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3157	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2152		3158
2153	sub db_put($$;$) {	3159	cf::cede_to_tick;
2154	if (@_ >= 3) {
2155	$DB->{$_[0]}{$_[1]} = $_[2];
2156	} else {
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161
2162	cf::global->attach (
2163	prio => 10000,
2164	on_cleanup => sub {
2165	db_sync;
2166	},	3160	}
2167	);
2168	}
2169		3161
2170	#############################################################################	3162	while (my ($face, $info) = each %$faces) {
2171	# the server's main()	3163	next unless $info->{smooth};
		3164	my $idx = cf::face::find $face
		3165	or next;
		3166	if (my $smooth = cf::face::find $info->{smooth}) {
		3167	cf::face::set_smooth $idx, $smooth;
		3168	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3169	} else {
		3170	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3171	}
2172		3172
2173	sub cfg_load {	3173	cf::cede_to_tick;
		3174	}
		3175	}
		3176
		3177	{
		3178	my $anims = $facedata->{animinfo};
		3179
		3180	while (my ($anim, $info) = each %$anims) {
		3181	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3182	cf::cede_to_tick;
		3183	}
		3184
		3185	cf::anim::invalidate_all; # d'oh
		3186	}
		3187
		3188	{
		3189	# TODO: for gcfclient pleasure, we should give resources
		3190	# that gcfclient doesn't grok a >10000 face index.
		3191	my $res = $facedata->{resource};
		3192
		3193	my $soundconf = delete $res->{"res/sound.conf"};
		3194
		3195	while (my ($name, $info) = each %$res) {
		3196	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3197	my $data;
		3198
		3199	if ($info->{type} & 1) {
		3200	# prepend meta info
		3201
		3202	my $meta = $enc->encode ({
		3203	name => $name,
		3204	%{ $info->{meta} || {} },
		3205	});
		3206
		3207	$data = pack "(w/a*)*", $meta, $info->{data};
		3208	} else {
		3209	$data = $info->{data};
		3210	}
		3211
		3212	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3213	cf::face::set_type $idx, $info->{type};
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217
		3218	if ($soundconf) {
		3219	$soundconf = $enc->decode (delete $soundconf->{data});
		3220
		3221	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3222	my $sound = $soundconf->{compat}[$_]
		3223	or next;
		3224
		3225	my $face = cf::face::find "sound/$sound->[1]";
		3226	cf::sound::set $sound->[0] => $face;
		3227	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3228	}
		3229
		3230	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3231	my $face = cf::face::find "sound/$v";
		3232	cf::sound::set $k => $face;
		3233	}
		3234	}
		3235	}
		3236
		3237	1
		3238	}
		3239
		3240	register_exticmd fx_want => sub {
		3241	my ($ns, $want) = @_;
		3242
		3243	while (my ($k, $v) = each %$want) {
		3244	$ns->fx_want ($k, $v);
		3245	}
		3246	};
		3247
		3248	sub reload_regions {
		3249	# HACK to clear player env face cache, we need some signal framework
		3250	# for this (global event?)
		3251	%ext::player_env::MUSIC_FACE_CACHE = ();
		3252
		3253	load_resource_file "$MAPDIR/regions"
		3254	or die "unable to load regions file\n";
		3255
		3256	for (cf::region::list) {
		3257	$_->{match} = qr/$_->{match}/
		3258	if exists $_->{match};
		3259	}
		3260	}
		3261
		3262	sub reload_facedata {
		3263	load_facedata "$DATADIR/facedata"
		3264	or die "unable to load facedata\n";
		3265	}
		3266
		3267	sub reload_archetypes {
		3268	load_resource_file "$DATADIR/archetypes"
		3269	or die "unable to load archetypes\n";
		3270	#d# NEED to laod twice to resolve forward references
		3271	# this really needs to be done in an extra post-pass
		3272	# (which needs to be synchronous, so solve it differently)
		3273	load_resource_file "$DATADIR/archetypes"
		3274	or die "unable to load archetypes\n";
		3275	}
		3276
		3277	sub reload_treasures {
		3278	load_resource_file "$DATADIR/treasures"
		3279	or die "unable to load treasurelists\n";
		3280	}
		3281
		3282	sub reload_resources {
		3283	warn "reloading resource files...\n";
		3284
		3285	reload_regions;
		3286	reload_facedata;
		3287	#reload_archetypes;#d#
		3288	reload_archetypes;
		3289	reload_treasures;
		3290
		3291	warn "finished reloading resource files\n";
		3292	}
		3293
		3294	sub init {
		3295	reload_resources;
		3296	}
		3297
		3298	sub reload_config {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	3300	or return;
2176		3301
2177	local $/;	3302	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
2179		3304
…		…
2193		3318
2194	sub main {	3319	sub main {
2195	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3322	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2198	async { Event::one_event };	3323	(async {
		3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3325	EV::loop EV::LOOP_ONESHOT;
		3326	})->prio (Coro::PRIO_MAX);
2199	};	3327	};
2200		3328
2201	cfg_load;	3329	reload_config;
2202	db_load;	3330	db_init;
2203	load_extensions;	3331	load_extensions;
		3332
		3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2204	Event::loop;	3335	EV::loop;
2205	}	3336	}
2206		3337
2207	#############################################################################	3338	#############################################################################
2208	# initialisation and cleanup	3339	# initialisation and cleanup
2209		3340
2210	# install some emergency cleanup handlers	3341	# install some emergency cleanup handlers
2211	BEGIN {	3342	BEGIN {
		3343	our %SIGWATCHER = ();
2212	for my $signal (qw(INT HUP TERM)) {	3344	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2214	data => WF_AUTOCANCEL,
2215	signal => $signal,
2216	cb => sub {
2217	cf::cleanup "SIG$signal";	3346	cf::cleanup "SIG$signal";
2218	},
2219	);	3347	};
		3348	}
		3349	}
		3350
		3351	sub write_runtime {
		3352	my $runtime = "$LOCALDIR/runtime";
		3353
		3354	# first touch the runtime file to show we are still running:
		3355	# the fsync below can take a very very long time.
		3356
		3357	IO::AIO::aio_utime $runtime, undef, undef;
		3358
		3359	my $guard = cf::lock_acquire "write_runtime";
		3360
		3361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3362	or return;
		3363
		3364	my $value = $cf::RUNTIME + 90 + 10;
		3365	# 10 is the runtime save interval, for a monotonic clock
		3366	# 60 allows for the watchdog to kill the server.
		3367
		3368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3369	and return;
		3370
		3371	# always fsync - this file is important
		3372	aio_fsync $fh
		3373	and return;
		3374
		3375	# touch it again to show we are up-to-date
		3376	aio_utime $fh, undef, undef;
		3377
		3378	close $fh
		3379	or return;
		3380
		3381	aio_rename "$runtime~", $runtime
		3382	and return;
		3383
		3384	warn "runtime file written.\n";
		3385
2220	}	3386	1
2221	}	3387	}
2222		3388
2223	sub emergency_save() {	3389	sub emergency_save() {
2224	my $freeze_guard = cf::freeze_mainloop;	3390	my $freeze_guard = cf::freeze_mainloop;
2225		3391
2226	warn "enter emergency perl save\n";	3392	warn "enter emergency perl save\n";
2227		3393
2228	cf::sync_job {	3394	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	3395	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	3396	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	3397	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	3398	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	3399	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	3400	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2236	$pl->save;	3403	$pl->save;
2237	}	3404	}
2238	warn "end emergency player save\n";	3405	warn "end emergency player save\n";
2239		3406
2240	warn "begin emergency map save\n";	3407	warn "begin emergency map save\n";
…		…
2242	my $map = $cf::MAP{$path} or next;	3409	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	3410	$map->valid or next;
2244	$map->save;	3411	$map->save;
2245	}	3412	}
2246	warn "end emergency map save\n";	3413	warn "end emergency map save\n";
		3414
		3415	warn "begin emergency database checkpoint\n";
		3416	BDB::db_env_txn_checkpoint $DB_ENV;
		3417	warn "end emergency database checkpoint\n";
2247	};	3418	};
2248		3419
2249	warn "leave emergency perl save\n";	3420	warn "leave emergency perl save\n";
2250	}	3421	}
2251		3422
		3423	sub post_cleanup {
		3424	my ($make_core) = @_;
		3425
		3426	warn Carp::longmess "post_cleanup backtrace"
		3427	if $make_core;
		3428	}
		3429
2252	sub reload() {	3430	sub do_reload_perl() {
2253	# can/must only be called in main	3431	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	3433	warn "can only reload from main coroutine";
2256	return;	3434	return;
2257	}	3435	}
2258		3436
2259	warn "reloading...";	3437	warn "reloading...";
2260		3438
2261	my $guard = freeze_mainloop;	3439	warn "entering sync_job";
		3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
2262	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
2263		3445
2264	eval {	3446	warn "syncing database to disk";
		3447	BDB::db_env_txn_checkpoint $DB_ENV;
		3448
2265	# if anything goes wrong in here, we should simply crash as we already saved	3449	# if anything goes wrong in here, we should simply crash as we already saved
2266		3450
2267	# cancel all watchers	3451	warn "flushing outstanding aio requests";
2268	for (Event::all_watchers) {	3452	for (;;) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	3453	BDB::flush;
		3454	IO::AIO::flush;
		3455	Coro::cede_notself;
		3456	last unless IO::AIO::nreqs || BDB::nreqs;
		3457	warn "iterate...";
2270	}	3458	}
2271		3459
		3460	++$RELOAD;
		3461
2272	# cancel all extension coros	3462	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	3464	%EXT_CORO = ();
2275		3465
2276	# unload all extensions	3466	warn "removing commands";
2277	for (@exts) {	3467	%COMMAND = ();
		3468
		3469	warn "removing ext/exti commands";
		3470	%EXTCMD = ();
		3471	%EXTICMD = ();
		3472
		3473	warn "unloading/nuking all extensions";
		3474	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	3475	warn "... unloading $pkg";
2279	unload_extension $_;	3476
		3477	if (my $cb = $pkg->can ("unload")) {
		3478	eval {
		3479	$cb->($pkg);
		3480	1
		3481	} or warn "$pkg unloaded, but with errors: $@";
2280	}	3482	}
2281		3483
		3484	warn "... nuking $pkg";
		3485	Symbol::delete_package $pkg;
		3486	}
		3487
2282	# unload all modules loaded from $LIBDIR	3488	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	3489	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3490	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		3491
2286	warn "removing <$k>";	3492	warn "... unloading $k";
2287	delete $INC{$k};	3493	delete $INC{$k};
2288		3494
2289	$k =~ s/\.pm$//;	3495	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	3496	$k =~ s/\//::/g;
2291		3497
…		…
2294	}	3500	}
2295		3501
2296	Symbol::delete_package $k;	3502	Symbol::delete_package $k;
2297	}	3503	}
2298		3504
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	3505	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3507	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		3508
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	3509	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
2312		3512
2313	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
2314	# and global variables created in xs	3514	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
2316		3516
2317	# reload cf.pm	3517	warn "unload completed, starting to reload now";
		3518
2318	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2319	require cf;	3520	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		3522
2322	# load config and database again	3523	warn "loading config and database again";
2323	cf::cfg_load;	3524	cf::reload_config;
2324	cf::db_load;
2325		3525
2326	# load extensions
2327	warn "load extensions";	3526	warn "loading extensions";
2328	cf::load_extensions;	3527	cf::load_extensions;
2329		3528
2330	# reattach attachments to objects	3529	warn "reattaching attachments to objects/players";
2331	warn "reattach";	3530	_global_reattach; # objects, sockets
2332	_global_reattach;	3531	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	3532	reattach $_ for values %MAP;
2334	};	3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
2335		3535
2336	if ($@) {	3536	warn "leaving sync_job";
		3537
		3538	1
		3539	} or do {
2337	warn $@;	3540	warn $@;
2338	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
2339	exit 1;	3542	exit 1;
2340	}	3543	};
2341		3544
2342	warn "reloaded successfully";	3545	warn "reloaded";
2343	};	3546	};
2344		3547
2345	#############################################################################	3548	our $RELOAD_WATCHER; # used only during reload
2346		3549
2347	unless ($LINK_MAP) {	3550	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	3551	# doing reload synchronously and two reloads happen back-to-back,
		3552	# coro crashes during coro_state_free->destroy here.
2349		3553
2350	$LINK_MAP->width (41);	3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2351	$LINK_MAP->height (41);	3555	undef $RELOAD_WATCHER;
2352	$LINK_MAP->alloc;	3556	do_reload_perl;
2353	$LINK_MAP->path ("{link}");	3557	};
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,
2360	cb => sub {
2361	$_[0]->w->cancel;
2362
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});
2381
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	3558	}
2387
2388	register "<global>", __PACKAGE__;
2389		3559
2390	register_command "reload" => sub {	3560	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2392		3562
2393	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2397	}	3569	}
2398	};	3570	};
2399		3571
2400	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2401		3573
2402	$TICK_WATCHER = Event->timer (	3574	my $bug_warning = 0;
2403	reentrant => 0,	3575
2404	prio => 0,	3576	our @WAIT_FOR_TICK;
2405	at => $NEXT_TICK || $TICK,	3577	our @WAIT_FOR_TICK_BEGIN;
2406	data => WF_AUTOCANCEL,	3578
2407	cb => sub {	3579	sub wait_for_tick {
		3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
		3596
		3597	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3598	if ($Coro::current != $Coro::main) {
		3599	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3600	unless ++$bug_warning > 10;
		3601	return;
		3602	}
		3603
		3604	$NOW = $tick_start = EV::now;
		3605
2408	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2409	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;	3609	$NEXT_TICK += $TICK;
2411		3610
2412	$WAIT_FOR_TICK->broadcast;	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3612	$NEXT_RUNTIME_WRITE = $NOW + 10;
2414		3613	Coro::async_pool {
2415	# if we are delayed by four ticks or more, skip them all	3614	$Coro::current->{desc} = "runtime saver";
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2417
2418	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;
2420	},
2421	);
2422
2423	IO::AIO::max_poll_time $TICK * 0.2;
2424
2425	Event->io (
2426	fd => IO::AIO::poll_fileno,
2427	poll => 'r',
2428	prio => 5,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,
2435	after => 0,
2436	interval => 10,
2437	cb => sub {
2438	(Coro::unblock_sub {
2439	write_runtime	3615	write_runtime
2440	or warn "ERROR: unable to write runtime file: $!";	3616	or warn "ERROR: unable to write runtime file: $!";
2441	})->();	3617	};
2442	},	3618	}
2443	);	3619
		3620	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3621	$sig->send;
		3622	}
		3623	while (my $sig = shift @WAIT_FOR_TICK) {
		3624	$sig->send;
		3625	}
		3626
		3627	$LOAD = ($NOW - $tick_start) / $TICK;
		3628	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3629
		3630	_post_tick;
		3631	};
		3632	$TICK_WATCHER->priority (EV::MAXPRI);
		3633
		3634	{
		3635	# configure BDB
		3636
		3637	BDB::min_parallel 8;
		3638	BDB::max_poll_reqs $TICK * 0.1;
		3639
		3640	unless ($DB_ENV) {
		3641	$DB_ENV = BDB::db_env_create;
		3642	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3643	| BDB::LOG_AUTOREMOVE, 1);
		3644	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3645	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3646
		3647	cf::sync_job {
		3648	eval {
		3649	BDB::db_env_open
		3650	$DB_ENV,
		3651	$BDBDIR,
		3652	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3653	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3654	0666;
		3655
		3656	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3657	};
		3658
		3659	cf::cleanup "db_env_open(db): $@" if $@;
		3660	};
		3661	}
		3662
		3663	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3664	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3665	};
		3666	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3667	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3668	};
		3669	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3670	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3671	};
		3672	}
		3673
		3674	{
		3675	# configure IO::AIO
		3676
		3677	IO::AIO::min_parallel 8;
		3678	IO::AIO::max_poll_time $TICK * 0.1;
		3679	}
		3680
		3681	my $_log_backtrace;
		3682
		3683	sub _log_backtrace {
		3684	my ($msg, @addr) = @_;
		3685
		3686	$msg =~ s/\n//;
		3687
		3688	# limit the # of concurrent backtraces
		3689	if ($_log_backtrace < 2) {
		3690	++$_log_backtrace;
		3691	async {
		3692	$Coro::current->{desc} = "abt $msg";
		3693
		3694	my @bt = fork_call {
		3695	@addr = map { sprintf "%x", $_ } @addr;
		3696	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3697	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3698	or die "addr2line: $!";
		3699
		3700	my @funcs;
		3701	my @res = <$fh>;
		3702	chomp for @res;
		3703	while (@res) {
		3704	my ($func, $line) = splice @res, 0, 2, ();
		3705	push @funcs, "[$func] $line";
		3706	}
		3707
		3708	@funcs
		3709	};
		3710
		3711	LOG llevInfo, "[ABT] $msg\n";
		3712	LOG llevInfo, "[ABT] $_\n" for @bt;
		3713	--$_log_backtrace;
		3714	};
		3715	} else {
		3716	LOG llevInfo, "[ABT] $msg\n";
		3717	LOG llevInfo, "[ABT] [suppressed]\n";
		3718	}
		3719	}
		3720
		3721	# load additional modules
		3722	use cf::pod;
2444		3723
2445	END { cf::emergency_save }	3724	END { cf::emergency_save }
2446		3725
2447	1	3726	1
2448		3727

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