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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.402 by root, Mon Dec 17 07:03:32 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 ();
		29	use Data::Dumper;
20	use Digest::MD5;	30	use Digest::MD5;
21	use Fcntl;	31	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
24	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
25		37
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
		39	#
		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
27		43
28	# 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?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$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
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	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(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	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;
46		87
47	our %CFG;	88	our %CFG;
48		89
49	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
51		93
52	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	96	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	97
		98	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $tick_start; # for load detecting purposes
56		104
57	binmode STDOUT;	105	binmode STDOUT;
58	binmode STDERR;	106	binmode STDERR;
59		107
60	# read virtual server time, if available	108	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
65	}	113	}
66		114
67	mkdir cf::localdir;	115	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		117
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
76		121
77	#############################################################################	122	#############################################################################
78		123
79	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
80		125
…		…
87	=item $cf::RUNTIME	132	=item $cf::RUNTIME
88		133
89	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
90	every server tick.	135	every server tick.
91		136
92	=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
93		140
94	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		145
97	=item $cf::NOW	146	=item $cf::NOW
98		147
99	The time of the last (current) server tick.	148	The time of the last (current) server tick.
100		149
101	=item $cf::TICK	150	=item $cf::TICK
102		151
103	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
104		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
105	=item %cf::CFG	164	=item %cf::CFG
106		165
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		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.
109		180
110	=back	181	=back
111		182
112	=cut	183	=cut
113		184
114	BEGIN {	185	BEGIN {
115	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	187	my $msg = join "", @_;
117	utf8::encode $msg;
118		188
119	$msg .= "\n"	189	$msg .= "\n"
120	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
121		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
122	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
123	};	195	};
124	}	196	}
125		197
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		205
133	# 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
134	# within the Safe compartment.	207	# within the Safe compartment.
135	for my $pkg (qw(	208	for my $pkg (qw(
136	cf::global cf::attachable	209	cf::global cf::attachable
…		…
141	)) {	214	)) {
142	no strict 'refs';	215	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	217	}
145		218
146	$Event::DIED = sub {	219	$EV::DIED = sub {
147	warn "error in event callback: @_";	220	warn "error in event callback: @_";
148	};	221	};
149		222
150	my %ext_pkg;	223	#############################################################################
151	my @exts;
152	my @hook;
153		224
154	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
155		226
156	=over 4	227	=over 4
157		228
158	=cut	229	=item dumpval $ref
159		230
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
161		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
		251
162	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
163		253
164	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
165		255
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
174		257
175	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
176		259
177	=cut	260	=cut
178		261
179	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
181	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
182	}	265	sub decode_json($) { $json_coder->decode ($_[0]) }
183		266
184	=item cf::lock_wait $string	267	=item cf::lock_wait $string
185		268
186	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
187		270
…		…
190	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
191	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,
192	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
193	returned.	276	returned.
194		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
195	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
196	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
197		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
198	=cut	288	=cut
199		289
200	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
201		292
202	sub lock_wait($) {	293	sub lock_wait($) {
203	my ($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#
204		300
205	# wait for lock, if any	301	# wait for lock, if any
206	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	304	Coro::schedule;
…		…
214		310
215	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
216	lock_wait $key;	312	lock_wait $key;
217		313
218	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
219		316
220	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
223	}	321	}
224	}	322	}
225		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
226	sub freeze_mainloop {	330	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
228		332
229	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
230	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
231	$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	$sig->wait;
232	}	411	}
233		412
234	=item cf::async { BLOCK }	413	=item cf::async { BLOCK }
235		414
236	Currently the same as Coro::async_pool, meaning you cannot use	415	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		420
242	BEGIN { *async = \&Coro::async_pool }	421	BEGIN { *async = \&Coro::async_pool }
243		422
244	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
245		424
246	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
249		429
250	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
253	fast or be very important.	433	fast or be very important.
…		…
256		436
257	sub sync_job(&) {	437	sub sync_job(&) {
258	my ($job) = @_;	438	my ($job) = @_;
259		439
260	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
261	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
263		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
264	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	449	# (but this is cancel-safe)
266	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
267		451
268	my $busy = 1;	452	my $busy = 1;
269	my @res;	453	my @res;
270		454
271	(async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
272	@res = eval { $job->() };	457	@res = eval { $job->() };
273	warn $@ if $@;	458	warn $@ if $@;
274	undef $busy;	459	undef $busy;
275	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
276		461
277	while ($busy) {	462	while ($busy) {
278	unless (Coro::cede) {	463	if (Coro::nready) {
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;	464	Coro::cede_notself;
		465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
281	}	467	}
282	}	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
283		476
284	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
285	} else {	478	} else {
286	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
287		480
…		…
289	}	482	}
290	}	483	}
291		484
292	=item $coro = cf::async_ext { BLOCK }	485	=item $coro = cf::async_ext { BLOCK }
293		486
294	Like async, but this coro is automcatially being canceled when the	487	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	488	extension calling this is being unloaded.
296		489
297	=cut	490	=cut
298		491
299	sub async_ext(&) {	492	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
308		501
309	$coro	502	$coro
310	}	503	}
311		504
312	sub write_runtime {	505	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		506
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
316	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.
317		511
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	512	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		513
322	aio_fsync $fh	514	sub fork_call(&@) {
323	and return;	515	my ($cb, @args) = @_;
324		516
325	close $fh	517	# we seemingly have to make a local copy of the whole thing,
326	or return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
327		520
328	aio_rename "$runtime~", $runtime	521	my @res = Coro::Util::fork_eval {
329	and return;	522	reset_signals;
		523	&$cb
		524	}, @args;
330		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($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
331	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		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 => $type });
332	}	665	}
333		666
334	=back	667	=back
335		668
336	=cut	669	=cut
337
338	#############################################################################
339
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457		670
458	#############################################################################	671	#############################################################################
459		672
460	=head2 ATTACHABLE OBJECTS	673	=head2 ATTACHABLE OBJECTS
461		674
…		…
463	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")
464	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
465		678
466	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>
467	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
468	crossfire+).	681	Deliantra).
469		682
470	=over 4	683	=over 4
471		684
472	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
473		686
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	800	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	801	our @CB_MAP = ();
589		802
590	my %attachment;	803	my %attachment;
591		804
		805	sub cf::attachable::thawer_merge {
		806	# simply override everything except _meta
		807	local $_[0]{_meta};
		808	%{$_[0]} = %{$_[1]};
		809	}
		810
592	sub _attach_cb($$$$) {	811	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	812	my ($registry, $event, $prio, $cb) = @_;
594		813
595	use sort 'stable';	814	use sort 'stable';
596		815
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
631		850
632	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		855
637	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	857	my $pkg = shift @arg;
639		858
640	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
670	}	889	}
671		890
672	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
673	} else {	892	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	894	}
676		895
677	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
678	}	897	}
679		898
…		…
681	if (ref $_[0]) {	900	if (ref $_[0]) {
682	_object_attach @_;	901	_object_attach @_;
683	} else {	902	} else {
684	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
685	}	904	}
		905	_recalc_want;
686	};	906	};
687		907
688	# all those should be optimised	908	# all those should be optimised
689	sub cf::attachable::detach {	909	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
694	reattach ($obj);	914	reattach ($obj);
695	} else {	915	} else {
696	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
697	}	917	}
		918	_recalc_want;
698	};	919	};
699		920
700	sub cf::attachable::attached {	921	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
702		923
…		…
717	";	938	";
718	die if $@;	939	die if $@;
719	}	940	}
720		941
721	our $override;	942	our $override;
722	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?
723		944
724	sub override {	945	sub override {
725	$override = 1;	946	$override = 1;
726	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
727	}	948	}
728		949
729	sub do_invoke {	950	sub do_invoke {
730	my $event = shift;	951	my $event = shift;
731	my $callbacks = shift;	952	my $callbacks = shift;
732		953
733	@invoke_results = ();	954	@INVOKE_RESULTS = ();
734		955
735	local $override;	956	local $override;
736		957
737	for (@$callbacks) {	958	for (@$callbacks) {
738	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
755		976
756	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
757		978
758	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
759	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
760	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		982
762	=back	983	=back
763		984
764	=cut	985	=cut
765		986
766	#############################################################################	987	#############################################################################
767	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
768		1031
769	sub reattach {	1032	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	1034	my ($obj) = @_;
		1035
		1036	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1037
773	my $registry = $obj->registry;	1038	my $registry = $obj->registry;
774		1039
775	@$registry = ();	1040	@$registry = ();
776		1041
…		…
791	cf::attachable->attach (	1056	cf::attachable->attach (
792	prio => -1000000,	1057	prio => -1000000,
793	on_instantiate => sub {	1058	on_instantiate => sub {
794	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
795		1060
796	$data = from_json $data;	1061	$data = decode_json $data;
797		1062
798	for (@$data) {	1063	for (@$data) {
799	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
800		1065
801	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1082	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
819		1084
820	sync_job {	1085	sync_job {
821	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
824		1090
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	1094	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	1095	close $fh;
830		1096
831	if (@$objs) {	1097	if (@$objs) {
832	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) {
833	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	1102	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	1103	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
839	}	1105	}
840	} else {	1106	} else {
841	aio_unlink "$filename.pst";	1107	aio_unlink "$filename.pst";
…		…
847	}	1113	}
848	} else {	1114	} else {
849	aio_unlink $filename;	1115	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
851	}	1117	}
852	}	1118	};
853	}	1119	}
854		1120
855	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
857		1123
…		…
869	or return;	1135	or return;
870		1136
871	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
873	or return;	1139	or return;
		1140
874	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
875	}	1143	}
876		1144
		1145	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1147	$decname, length $data, scalar @{$av || []};
		1148
879	return ($data, $av);	1149	($data, $av)
880	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
881		1157
882	#############################################################################	1158	#############################################################################
883	# command handling &c	1159	# command handling &c
884		1160
885	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1175	}
900		1176
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1178
903	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.
904		1184
905	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
906	called.	1186	called.
907		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
908	=cut	1199	=cut
909		1200
910	sub register_extcmd {	1201	sub register_extcmd {
911	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
912		1203
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
917	}	1211	}
918		1212
919	cf::player->attach (	1213	cf::player->attach (
920	on_command => sub {	1214	on_command => sub {
921	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
930	cf::override;	1224	cf::override;
931	},	1225	},
932	on_extcmd => sub {	1226	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
934		1228
935	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1230
937	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
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
940	$pl->ext_reply ($msg->{msgid}, %reply);
941	}
942	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
943	} else {	1246	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
945	}	1248	}
946		1249
947	cf::override;	1250	cf::override;
948	},	1251	},
949	);	1252	);
950		1253
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1254	sub load_extensions {
		1255	cf::sync_job {
		1256	my %todo;
		1257
		1258	for my $path (<$LIBDIR/*.ext>) {
		1259	next unless -r $path;
		1260
		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;
		1318	}
		1319
		1320	skip:
		1321	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1322	unless $progress;
		1323	}
		1324	};
		1325	}
		1326
		1327	#############################################################################
		1328
		1329	=back
		1330
		1331	=head2 CORE EXTENSIONS
		1332
		1333	Functions and methods that extend core crossfire objects.
		1334
		1335	=cut
		1336
		1337	package cf::player;
		1338
		1339	use Coro::AIO;
		1340
		1341	=head3 cf::player
		1342
		1343	=over 4
		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
		1359	=item cf::player::find $login
		1360
		1361	Returns the given player object, loading it if necessary (might block).
		1362
		1363	=cut
		1364
		1365	sub playerdir($) {
		1366	"$PLAYERDIR/"
		1367	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1368	}
		1369
		1370	sub path($) {
		1371	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1372
		1373	(playerdir $login) . "/playerdata"
		1374	}
		1375
		1376	sub find_active($) {
		1377	$cf::PLAYER{$_[0]}
		1378	and $cf::PLAYER{$_[0]}->active
		1379	and $cf::PLAYER{$_[0]}
		1380	}
		1381
		1382	sub exists($) {
		1383	my ($login) = @_;
		1384
		1385	$cf::PLAYER{$login}
		1386	or cf::sync_job { !aio_stat path $login }
		1387	}
		1388
		1389	sub find($) {
		1390	return $cf::PLAYER{$_[0]} || do {
		1391	my $login = $_[0];
		1392
		1393	my $guard = cf::lock_acquire "user_find:$login";
		1394
		1395	$cf::PLAYER{$_[0]} || do {
		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
		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;
		1410	$cf::PLAYER{$login} = $pl
		1411	}
		1412	}
		1413	}
		1414
		1415	sub save($) {
		1416	my ($pl) = @_;
		1417
		1418	return if $pl->{deny_save};
		1419
		1420	my $path = path $pl;
		1421	my $guard = cf::lock_acquire "user_save:$path";
		1422
		1423	return if $pl->{deny_save};
		1424
		1425	aio_mkdir playerdir $pl, 0770;
		1426	$pl->{last_save} = $cf::RUNTIME;
		1427
		1428	$pl->save_pl ($path);
		1429	cf::cede_to_tick;
		1430	}
		1431
		1432	sub new($) {
		1433	my ($login) = @_;
		1434
		1435	my $self = create;
		1436
		1437	$self->ob->name ($login);
		1438	$self->{deny_save} = 1;
		1439
		1440	$cf::PLAYER{$login} = $self;
		1441
		1442	$self
		1443	}
		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
		1455	=item $pl->quit_character
		1456
		1457	Nukes the player without looking back. If logged in, the connection will
		1458	be destroyed. May block for a long time.
		1459
		1460	=cut
		1461
		1462	sub quit_character {
		1463	my ($pl) = @_;
		1464
		1465	my $name = $pl->ob->name;
		1466
		1467	$pl->{deny_save} = 1;
		1468	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1469
		1470	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1471	$pl->deactivate;
		1472	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1473	$pl->ns->destroy if $pl->ns;
		1474
		1475	my $path = playerdir $pl;
		1476	my $temp = "$path~$cf::RUNTIME~deleting~";
		1477	aio_rename $path, $temp;
		1478	delete $cf::PLAYER{$pl->ob->name};
		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
		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;
		1501	}
		1502
		1503	=item cf::player::list_logins
		1504
		1505	Returns am arrayref of all valid playernames in the system, can take a
		1506	while and may block, so not sync_job-capable, ever.
		1507
		1508	=cut
		1509
		1510	sub list_logins {
		1511	my $dirs = aio_readdir $PLAYERDIR
		1512	or return [];
		1513
		1514	my @logins;
		1515
		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") {
		1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1522	aio_read $fh, 0, 512, my $buf, 0 or next;
		1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
		1525
		1526	utf8::decode $login;
		1527	push @logins, $login;
		1528	}
		1529
		1530	\@logins
		1531	}
		1532
		1533	=item $player->maps
		1534
		1535	Returns an arrayref of map paths that are private for this
		1536	player. May block.
		1537
		1538	=cut
		1539
		1540	sub maps($) {
		1541	my ($pl) = @_;
		1542
		1543	$pl = ref $pl ? $pl->ob->name : $pl;
		1544
		1545	my $files = aio_readdir playerdir $pl
		1546	or return;
		1547
		1548	my @paths;
		1549
		1550	for (@$files) {
		1551	utf8::decode $_;
		1552	next if /\.(?:pl|pst)$/;
		1553	next unless /^$PATH_SEP/o;
		1554
		1555	push @paths, cf::map::normalise "~$pl/$_";
		1556	}
		1557
		1558	\@paths
		1559	}
		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
		1654	=item $player->ext_reply ($msgid, @msg)
		1655
		1656	Sends an ext reply to the player.
		1657
		1658	=cut
		1659
		1660	sub ext_reply($$@) {
		1661	my ($self, $id, @msg) = @_;
		1662
		1663	$self->ns->ext_reply ($id, @msg)
		1664	}
		1665
		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($) {
958	my ($path) = @_;	1693	my ($path) = @_;
959		1694
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1695	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1696
966	warn "loading '$path' into '$pkg'\n";	1697	for my $region (list) {
967		1698	if ($region->{match} && $path =~ $region->{match}) {
968	open my $fh, "<:utf8", $path	1699	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1700	if $region->specificity > $specificity;
970		1701	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1702	}
1000		1703
1001	# remove commands	1704	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1705	}
1107		1706
1108	=back	1707	=back
1109
1110		1708
1111	=head3 cf::map	1709	=head3 cf::map
1112		1710
1113	=over 4	1711	=over 4
1114		1712
…		…
1117	package cf::map;	1715	package cf::map;
1118		1716
1119	use Fcntl;	1717	use Fcntl;
1120	use Coro::AIO;	1718	use Coro::AIO;
1121		1719
		1720	use overload
		1721	'""' => \&as_string,
		1722	fallback => 1;
		1723
1122	our $MAX_RESET = 3600;	1724	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1725	our $DEFAULT_RESET = 3000;
1124		1726
1125	sub generate_random_map {	1727	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1728	my ($self, $rmp) = @_;
1127
1128	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1730	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1734	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1735	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1736	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1737	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1738	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$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},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(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"
1142	}	1870	}
1143		1871
1144	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1145	# all maps in C++...	1873	# all maps in C++...
1146	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1148		1876
1149	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1151	}	1879	}
1152		1880
		1881	sub decay_objects {
		1882	my ($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
1153	sub try_load_header($) {	1897	sub load_header_from($) {
1154	my ($path) = @_;	1898	my ($self, $path) = @_;
1155		1899
1156	utf8::encode $path;	1900	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1158	or return;	1902	or return;
1159		1903
1160	my $map = cf::map::new	1904	$self->_load_header ($f)
1161	or return;	1905	or return;
1162		1906
1163	# for better error messages only, will be overwritten	1907	local $MAP_LOADING{$self->{path}} = $self;
1164	$map->path ($path);	1908	$f->resolve_delayed_derefs;
1165		1909
1166	$map->load_header ($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
1167	or return;	1953	or return;
		1954	$self->prepare_orig;
		1955	}
1168		1956
1169	$map->{load_path} = $path;	1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
1170		1959
1171	$map	1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
		1962
		1963	1
1172	}	1964	}
1173		1965
1174	sub find;	1966	sub find;
1175	sub find {	1967	sub find {
1176	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1177		1969
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1183	cf::lock_wait "map_find:$key";	1973	cf::lock_wait "map_find:$path";
1184		1974
1185	$cf::MAP{$key} || do {	1975	$cf::MAP{$path} || do {
1186	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
1187		1978
1188	# do it the slow way	1979	my $map = new_from_path cf::map $path
1189	my $map = try_load_header $path->save_path;
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1980	or return;
1207		1981
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1220		1983
1221	Coro::cede;	1984	$map->load_header
		1985	or return;
1222		1986
1223	if ($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;
1224	$map->reset;	1992	$map->reset;
1225	undef $guard;
1226	$map = find $path	1993	return find $path;
1227	or return;
1228	}	1994	}
1229		1995
1230	$cf::MAP{$key} = $map	1996	$cf::MAP{$path} = $map
1231	}	1997	}
1232	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1233		2002
1234	sub load {	2003	sub load {
1235	my ($self) = @_;	2004	my ($self) = @_;
1236		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1237	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2011	my $guard = cf::lock_acquire "map_data:$path";
1239		2012
		2013	return unless $self->valid;
1240	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1241		2015
1242	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1243		2017
1244	$self->alloc;	2018	$self->alloc;
1245	$self->load_objects ($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)
1246	or return;	2026	or return;
1247		2027
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	2029	if delete $self->{load_original};
1250		2030
1251	if (my $uniq = $path->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	2032	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1254	$self->clear_unique_items;	2035	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1256	}	2039	}
1257	}	2040	}
1258		2041
1259	Coro::cede;	2042	$f->resolve_delayed_derefs;
1260		2043
		2044	cf::cede_to_tick;
1261	# now do the right thing for maps	2045	# now do the right thing for maps
1262	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1273	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;
1274	$self->activate;	2058	$self->activate;
1275	}	2059	}
1276		2060
1277	Coro::cede;	2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
1278		2063
1279	$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	$neigh->load;
		2105	}
1280	}	2106	}
1281		2107
1282	sub find_sync {	2108	sub find_sync {
1283	my ($path, $origin) = @_;	2109	my ($path, $origin) = @_;
1284		2110
1285	cf::sync_job { cf::map::find $path, $origin }	2111	cf::sync_job { find $path, $origin }
1286	}	2112	}
1287		2113
1288	sub do_load_sync {	2114	sub do_load_sync {
1289	my ($map) = @_;	2115	my ($map) = @_;
1290		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1291	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	$MAP_PREFETCHER->prio (6);
		2152
		2153	()
1292	}	2154	}
1293		2155
1294	sub save {	2156	sub save {
1295	my ($self) = @_;	2157	my ($self) = @_;
1296		2158
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1298		2160
1299	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1300		2162
1301	return unless $self->dirty;	2163	return unless $self->dirty;
1302		2164
1303	my $save = $self->{path}->save_path; utf8::encode $save;	2165	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2166	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		2167
1306	$self->{load_path} = $save;	2168	$self->{load_path} = $save;
1307		2169
1308	return if $self->{deny_save};	2170	return if $self->{deny_save};
1309		2171
1310	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1311		2173
		2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
		2176	$_->contr->save for $self->players;
		2177	};
		2178
1312	if ($uniq) {	2179	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	2181	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	2182	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	2184	}
1318	}	2185	}
1319		2186
1320	sub swap_out {	2187	sub swap_out {
1321	my ($self) = @_;	2188	my ($self) = @_;
1322		2189
1323	# save first because save cedes	2190	# save first because save cedes
1324	$self->save;	2191	$self->save;
1325		2192
1326	my $lock = cf::lock_acquire "map_data:" . $self->path;	2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2194
1328	return if $self->players;	2195	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	2197	return if $self->{deny_save};
1331		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2203	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2204	}
1335		2205
1336	sub reset_at {	2206	sub reset_at {
1337	my ($self) = @_;	2207	my ($self) = @_;
1338		2208
1339	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1342		2211
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2214
…		…
1350	my ($self) = @_;	2219	my ($self) = @_;
1351		2220
1352	$self->reset_at <= $cf::RUNTIME	2221	$self->reset_at <= $cf::RUNTIME
1353	}	2222	}
1354		2223
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2224	sub reset {
1377	my ($self) = @_;	2225	my ($self) = @_;
1378		2226
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2228
1381	return if $self->players;	2229	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2230
1384	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	}
1385		2242
1386	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1387		2244
		2245	$self->deactivate;
1388	$_->clear_links_to ($self) for values %cf::MAP;	2246	$_->clear_links_to ($self) for values %cf::MAP;
		2247	$self->clear;
1389		2248
1390	$self->unlink_save;	2249	$self->unlink_save;
1391	$self->destroy;	2250	$self->destroy;
1392	}	2251	}
1393		2252
1394	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1395		2254
1396	sub nuke {	2255	sub nuke {
1397	my ($self) = @_;	2256	my ($self) = @_;
1398		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};
1399	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2270
		2271	$cf::MAP{$self->path} = $self;
		2272	}
		2273
1402	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
1403	}	2275	}
1404		2276
1405	sub customise_for {	2277	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2278
1408	if ($map->per_player) {	2279	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2280	maps. May block.
		2281
		2282	=cut
		2283
		2284	sub tmp_maps() {
1410	}	2285	[
1411		2286	map {
1412	$map	2287	utf8::decode $_;
		2288	/\.map$/
		2289	? normalise $_
		2290	: ()
		2291	} @{ aio_readdir $TMPDIR or [] }
		2292	]
1413	}	2293	}
1414		2294
1415	sub emergency_save {	2295	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2296
1418	warn "enter emergency map save\n";	2297	Returns an arrayref with all map paths of currently instantiated and saved
		2298	random maps. May block.
1419		2299
1420	cf::sync_job {	2300	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2301
1425	warn "end emergency map save\n";	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	]
1426	}	2329	}
1427		2330
1428	package cf;	2331	package cf;
1429		2332
1430	=back	2333	=back
1431		2334
		2335	=head3 cf::object
		2336
		2337	=cut
		2338
		2339	package cf::object;
		2340
		2341	=over 4
		2342
		2343	=item $ob->inv_recursive
		2344
		2345	Returns the inventory of the object _and_ their inventories, recursively.
		2346
		2347	=cut
		2348
		2349	sub inv_recursive_;
		2350	sub inv_recursive_ {
		2351	map { $_, inv_recursive_ $_->inv } @_
		2352	}
		2353
		2354	sub inv_recursive {
		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	}
		2384	}
		2385
		2386	package cf;
		2387
		2388	=back
1432		2389
1433	=head3 cf::object::player	2390	=head3 cf::object::player
1434		2391
1435	=over 4	2392	=over 4
1436		2393
…		…
1450		2407
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2409
1453	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1455	} 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 {
1456	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1458	}	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 (@_);
1459	}	2435	}
1460		2436
1461	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1462		2438
1463	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1476		2452
1477	=item $player_object->enter_link	2453	=item $player_object->enter_link
1478		2454
1479	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}>).
1480		2456
1481	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
1482	I<MUST> call C<leave_link> as soon as possible, though.	2458	I<MUST> call C<leave_link> as soon as possible, though.
1483		2459
		2460	Will never block.
		2461
1484	=item $player_object->leave_link ($map, $x, $y)	2462	=item $player_object->leave_link ($map, $x, $y)
1485		2463
1486	Moves the player out of the specila link map onto the given map. If the	2464	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2465	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2466	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2467	fails, to the emergency map position.
1490		2468
1491	Might block.	2469	Might block.
1492		2470
1493	=cut	2471	=cut
		2472
		2473	sub link_map {
		2474	unless ($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	$LINK_MAP
		2481	}
1494		2482
1495	sub cf::object::player::enter_link {	2483	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2484	my ($self) = @_;
1497		2485
1498	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
1499		2487
1500	return if $self->map == $LINK_MAP;	2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2489
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2491	if $self->map && $self->map->{path} ne "{link}";
1504		2492
1505	$self->enter_map ($LINK_MAP, 20, 20);	2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2494	}
1507		2495
1508	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1510		2500
1511	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1512		2502
1513	unless ($map) {	2503	unless ($map) {
1514	# restore original map position	2504	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1531		2521
1532	$map->load;	2522	$map->load;
		2523	$map->load_neighbours;
1533		2524
		2525	return unless $self->contr->active;
1534	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1536	}	2530	}
1537		2531
1538	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2533
1542	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1546	};	2538	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2539
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)
1572
1573	=cut	2540	=cut
		2541
		2542	our $GOTOGEN;
1574		2543
1575	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2545	my ($self, $path, $x, $y, $check, $done) = @_;
		2546
		2547	# do generation counting so two concurrent goto's will be executed in-order
		2548	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2549
1578	$self->enter_link;	2550	$self->enter_link;
1579		2551
1580	(async {	2552	(async {
1581	$path = new cf::path $path;	2553	$Coro::current->{desc} = "player::goto $path $x $y";
1582		2554
1583	my $map = cf::map::find $path->as_string;	2555	# *tag paths override both path and x|y
		2556	if ($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) {
1584	$map = $map->customise_for ($self) if $map;	2578	$map = $map->customise_for ($self);
1585		2579	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2580	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
1590		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};
1591	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1592	})->prio (1);	2598	})->prio (1);
1593	}	2599	}
1594		2600
1595	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1596		2602
…		…
1598		2604
1599	sub parse_random_map_params {	2605	sub parse_random_map_params {
1600	my ($spec) = @_;	2606	my ($spec) = @_;
1601		2607
1602	my $rmp = { # defaults	2608	my $rmp = { # defaults
1603	xsize => 10,	2609	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2610	ysize => (cf::rndm 15, 40),
		2611	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2612	#layout => string,
1605	};	2613	};
1606		2614
1607	for (split /\n/, $spec) {	2615	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2616	my ($k, $v) = split /\s+/, $_, 2;
1609		2617
…		…
1613	$rmp	2621	$rmp
1614	}	2622	}
1615		2623
1616	sub prepare_random_map {	2624	sub prepare_random_map {
1617	my ($exit) = @_;	2625	my ($exit) = @_;
		2626
		2627	my $guard = cf::lock_acquire "exit_prepare:$exit";
1618		2628
1619	# all this does is basically replace the /! path by	2629	# all this does is basically replace the /! path by
1620	# a new random map path (?random/...) with a seed	2630	# a new random map path (?random/...) with a seed
1621	# that depends on the exit object	2631	# that depends on the exit object
1622		2632
1623	my $rmp = parse_random_map_params $exit->msg;	2633	my $rmp = parse_random_map_params $exit->msg;
1624		2634
1625	if ($exit->map) {	2635	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2636	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2637	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2638	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1630	}	2640	}
1631		2641
1632	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1633		2643
1634	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1635	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
		2646	my $meta = "$RANDOMDIR/$md5.meta";
1636		2647
1637	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) {
1638	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;
1639		2652
1640	$exit->slaying ("?random/$md5");	2653	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2654	$exit->msg (undef);
1642	}	2655	}
1643	}	2656	}
…		…
1645	sub cf::object::player::enter_exit {	2658	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2659	my ($self, $exit) = @_;
1647		2660
1648	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1649		2662
		2663	if ($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
1650	$self->enter_link;	2674	$self->enter_link;
1651		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
1652	(async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
1653	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
1654	unless (eval {	2684	unless (eval {
1655	prepare_random_map $exit	2685	$self->goto ($slaying, $hp, $sp);
1656	if $exit->slaying eq "/!";
1657
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1660		2686
1661	1;	2687	1;
1662	}) {	2688	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "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. "
1665	. "Please report this to the dungeon master",	2691	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2693
1668	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2695	$self->leave_link;
1670	}	2696	}
1671	})->prio (1);	2697	})->prio (1);
…		…
1684		2710
1685	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1687		2713
1688	utf8::encode $text;	2714	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2716	}
1691		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	}
1692		2876
1693	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1694		2878
1695	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
1696	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>,
1697	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>.
1698		2882
1699	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
1700	reliable at some point in the future.	2884	become reliable at some point in the future.
1701		2885
1702	=cut	2886	=cut
1703		2887
1704	sub cf::client::query {	2888	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2897	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2899
1716	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
1718	}	2904	}
1719		2905
1720	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
1721	on_reply => sub {	2912	on_reply => sub {
1722	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
1723		2914
1724	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
1725	# get handled first	2916	# get handled first
1726	my $queue = delete $ns->{query_queue}	2917	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2918	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2919
1729	(shift @$queue)->[1]->($msg);	2920	(shift @$queue)->[1]->($msg);
		2921	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2922
1731	push @{ $ns->{query_queue} }, @$queue;	2923	push @{ $ns->{query_queue} }, @$queue;
1732		2924
1733	if (@{ $ns->{query_queue} } == @$queue) {	2925	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2926	if (@$queue) {
…		…
1736	} else {	2928	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	2930	}
1739	}	2931	}
1740	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($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	},
1741	);	2959	);
1742		2960
1743	=item $client->async (\&cb)	2961	=item $client->async (\&cb)
1744		2962
1745	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
…		…
1786	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
1787	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
1788		3006
1789	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
1790		3008
1791	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
1792		3014
1793	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
1794		3016
1795	=pod	3017	=pod
1796		3018
1797	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
1798		3020
1799	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
1800	cf::object::player player	3025	cf::object::player
1801	cf::player peaceful	3026	player
1802	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
1803		3033
1804	=cut	3034	=cut
1805		3035
1806	for (	3036	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
1808	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
1810	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
1811	) {	3043	) {
1812	no strict 'refs';	3044	no strict 'refs';
…		…
1883	=back	3115	=back
1884		3116
1885	=cut	3117	=cut
1886		3118
1887	#############################################################################	3119	#############################################################################
		3120	# the server's init and main functions
1888		3121
1889	=head2 EXTENSION DATABASE SUPPORT	3122	sub load_facedata($) {
		3123	my ($path) = @_;
1890		3124
1891	Crossfire maintains a very simple database for extension use. It can	3125	# HACK to clear player env face cache, we need some signal framework
1892	currently store anything that can be serialised using Storable, which	3126	# for this (global event?)
1893	excludes objects.	3127	%ext::player_env::MUSIC_FACE_CACHE = ();
1894		3128
1895	The parameter C<$family> should best start with the name of the extension	3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1896	using it, it should be unique.
1897		3130
1898	=over 4	3131	warn "loading facedata from $path\n";
1899		3132
1900	=item $hashref = cf::db_get $family	3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
1901		3136
1902	Return a hashref for use by the extension C<$family>, which can be	3137	$facedata = Coro::Storable::thaw $facedata;
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905		3138
1906	=item $value = cf::db_get $family => $key	3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
1907		3141
1908	Returns a single value from the database	3142	# patch in the exptable
1909		3143	$facedata->{resource}{"res/exp_table"} = {
1910	=item cf::db_put $family => $hashref	3144	type => FT_RSRC,
1911		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}
1938
1939	my $pid;
1940
1941	sub db_save() {
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});	3146	};
		3147	cf::cede_to_tick;
1961		3148
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}	3149	{
		3150	my $faces = $facedata->{faceinfo};
1966		3151
1967	sub db_get($;$) {	3152	while (my ($face, $info) = each %$faces) {
1968	@_ >= 2	3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1969	? $DB->{$_[0]}{$_[1]}	3154	cf::face::set_visibility $idx, $info->{visibility};
1970	: ($DB->{$_[0]} ||= { })	3155	cf::face::set_magicmap $idx, $info->{magicmap};
1971	}	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};
1972		3158
1973	sub db_put($$;$) {	3159	cf::cede_to_tick;
1974	if (@_ >= 3) {
1975	$DB->{$_[0]}{$_[1]} = $_[2];
1976	} else {
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981
1982	cf::global->attach (
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	3160	}
1987	);
1988	}
1989		3161
1990	#############################################################################	3162	while (my ($face, $info) = each %$faces) {
1991	# 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	}
1992		3172
1993	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 {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	3300	or return;
1996		3301
1997	local $/;	3302	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
1999		3304
…		…
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3307	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3308	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		3309
2005	if (exists $CFG{mlockall}) {	3310	if (exists $CFG{mlockall}) {
2006	eval {	3311	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	3312	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	3313	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	3314	};
2010	warn $@ if $@;	3315	warn $@ if $@;
2011	}	3316	}
2012	}	3317	}
2013		3318
2014	sub main {	3319	sub main {
2015	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2017	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#
2018	async { Event::one_event };	3323	(async {
		3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3325	EV::loop EV::LOOP_ONESHOT;
		3326	})->prio (Coro::PRIO_MAX);
2019	};	3327	};
2020		3328
2021	cfg_load;	3329	reload_config;
2022	db_load;	3330	db_init;
2023	load_extensions;	3331	load_extensions;
		3332
		3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2024	Event::loop;	3335	EV::loop;
2025	}	3336	}
2026		3337
2027	#############################################################################	3338	#############################################################################
2028	# initialisation	3339	# initialisation and cleanup
2029		3340
		3341	# install some emergency cleanup handlers
		3342	BEGIN {
		3343	our %SIGWATCHER = ();
		3344	for my $signal (qw(INT HUP TERM)) {
		3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3346	cf::cleanup "SIG$signal";
		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
		3386	1
		3387	}
		3388
		3389	sub emergency_save() {
		3390	my $freeze_guard = cf::freeze_mainloop;
		3391
		3392	warn "enter emergency perl save\n";
		3393
		3394	cf::sync_job {
		3395	# use a peculiar iteration method to avoid tripping on perl
		3396	# refcount bugs in for. also avoids problems with players
		3397	# and maps saved/destroyed asynchronously.
		3398	warn "begin emergency player save\n";
		3399	for my $login (keys %cf::PLAYER) {
		3400	my $pl = $cf::PLAYER{$login} or next;
		3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3403	$pl->save;
		3404	}
		3405	warn "end emergency player save\n";
		3406
		3407	warn "begin emergency map save\n";
		3408	for my $path (keys %cf::MAP) {
		3409	my $map = $cf::MAP{$path} or next;
		3410	$map->valid or next;
		3411	$map->save;
		3412	}
		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";
		3418	};
		3419
		3420	warn "leave emergency perl save\n";
		3421	}
		3422
		3423	sub post_cleanup {
		3424	my ($make_core) = @_;
		3425
		3426	warn Carp::longmess "post_cleanup backtrace"
		3427	if $make_core;
		3428	}
		3429
2030	sub reload() {	3430	sub do_reload_perl() {
2031	# can/must only be called in main	3431	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	3433	warn "can only reload from main coroutine";
2034	return;	3434	return;
2035	}	3435	}
2036		3436
2037	warn "reloading...";	3437	warn "reloading...";
2038		3438
2039	my $guard = freeze_mainloop;	3439	warn "entering sync_job";
		3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
2040	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
2041		3445
2042	eval {	3446	warn "syncing database to disk";
		3447	BDB::db_env_txn_checkpoint $DB_ENV;
		3448
2043	# 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
2044		3450
2045	# cancel all watchers	3451	warn "flushing outstanding aio requests";
2046	for (Event::all_watchers) {	3452	for (;;) {
2047	$_->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...";
2048	}	3458	}
2049		3459
		3460	++$RELOAD;
		3461
2050	# cancel all extension coros	3462	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	3464	%EXT_CORO = ();
2053		3465
2054	# unload all extensions	3466	warn "removing commands";
2055	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) {
2056	warn "unloading <$_>";	3475	warn "... unloading $pkg";
2057	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: $@";
2058	}	3482	}
2059		3483
		3484	warn "... nuking $pkg";
		3485	Symbol::delete_package $pkg;
		3486	}
		3487
2060	# unload all modules loaded from $LIBDIR	3488	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	3489	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3490	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3491
2064	warn "removing <$k>";	3492	warn "... unloading $k";
2065	delete $INC{$k};	3493	delete $INC{$k};
2066		3494
2067	$k =~ s/\.pm$//;	3495	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	3496	$k =~ s/\//::/g;
2069		3497
…		…
2072	}	3500	}
2073		3501
2074	Symbol::delete_package $k;	3502	Symbol::delete_package $k;
2075	}	3503	}
2076		3504
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	3505	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
2083	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);
2084		3508
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	3509	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
2090		3512
2091	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3514	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
2094		3516
2095	# reload cf.pm	3517	warn "unload completed, starting to reload now";
		3518
2096	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2097	require cf;	3520	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3522
2100	# load config and database again	3523	warn "loading config and database again";
2101	cf::cfg_load;	3524	cf::reload_config;
2102	cf::db_load;
2103		3525
2104	# load extensions
2105	warn "load extensions";	3526	warn "loading extensions";
2106	cf::load_extensions;	3527	cf::load_extensions;
2107		3528
2108	# reattach attachments to objects	3529	warn "reattaching attachments to objects/players";
2109	warn "reattach";	3530	_global_reattach; # objects, sockets
2110	_global_reattach;	3531	warn "reattaching attachments to maps";
2111	};	3532	reattach $_ for values %MAP;
		3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
2112		3535
2113	if ($@) {	3536	warn "leaving sync_job";
		3537
		3538	1
		3539	} or do {
2114	warn $@;	3540	warn $@;
2115	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
2116	exit 1;	3542	exit 1;
2117	}	3543	};
2118		3544
2119	warn "reloaded successfully";	3545	warn "reloaded";
2120	};	3546	};
2121		3547
2122	#############################################################################	3548	our $RELOAD_WATCHER; # used only during reload
2123		3549
2124	unless ($LINK_MAP) {	3550	sub reload_perl() {
2125	$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.
2126		3553
2127	$LINK_MAP->width (41);	3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2128	$LINK_MAP->height (41);	3555	undef $RELOAD_WATCHER;
2129	$LINK_MAP->alloc;	3556	do_reload_perl;
2130	$LINK_MAP->path ("{link}");	3557	};
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,
2137	cb => sub {
2138	$_[0]->w->cancel;
2139
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});
2158
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3558	}
2164
2165	register "<global>", __PACKAGE__;
2166		3559
2167	register_command "reload" => sub {	3560	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2169		3562
2170	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2174	}	3569	}
2175	};	3570	};
2176		3571
2177	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2178		3573
2179	$TICK_WATCHER = Event->timer (	3574	my $bug_warning = 0;
2180	reentrant => 0,	3575
2181	prio => 0,	3576	our @WAIT_FOR_TICK;
2182	at => $NEXT_TICK || $TICK,	3577	our @WAIT_FOR_TICK_BEGIN;
2183	data => WF_AUTOCANCEL,	3578
2184	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
2185	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2186	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;	3609	$NEXT_TICK += $TICK;
2188		3610
2189	# if we are delayed by four ticks or more, skip them all	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3612	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2191		3613	Coro::async_pool {
2192	$TICK_WATCHER->at ($NEXT_TICK);	3614	$Coro::current->{desc} = "runtime saver";
2193	$TICK_WATCHER->start;
2194	},
2195	);
2196
2197	IO::AIO::max_poll_time $TICK * 0.2;
2198
2199	Event->io (
2200	fd => IO::AIO::poll_fileno,
2201	poll => 'r',
2202	prio => 5,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,
2209	after => 0,
2210	interval => 10,
2211	cb => sub {
2212	(Coro::unblock_sub {
2213	write_runtime	3615	write_runtime
2214	or warn "ERROR: unable to write runtime file: $!";	3616	or warn "ERROR: unable to write runtime file: $!";
2215	})->();	3617	};
2216	},	3618	}
2217	);	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;
2218		3723
2219	END { cf::emergency_save }	3724	END { cf::emergency_save }
2220		3725
2221	1	3726	1
2222		3727

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