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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.407 by root, Sun Jan 13 09:53:53 2008 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3;	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
		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 (2); # 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	our %RESOURCE;
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $BDB_DEADLOCK_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
46		88
47	our %CFG;	89	our %CFG;
48		90
49	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	92	our $RUNTIME;
		93	our $NOW;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available	119	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		120
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	121	sub cf::map::normalise;
78		122
79	#############################################################################	123	#############################################################################
80		124
81	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
82		126
…		…
89	=item $cf::RUNTIME	133	=item $cf::RUNTIME
90		134
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	136	every server tick.
93		137
94	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		141
96	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
98		146
99	=item $cf::NOW	147	=item $cf::NOW
100		148
101	The time of the last (current) server tick.	149	The time of the last (current) server tick.
102		150
103	=item $cf::TICK	151	=item $cf::TICK
104		152
105	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
106		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
107	=item %cf::CFG	165	=item %cf::CFG
108		166
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
111		181
112	=back	182	=back
113		183
114	=cut	184	=cut
115		185
116	BEGIN {	186	BEGIN {
117	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	188	my $msg = join "", @_;
119	utf8::encode $msg;
120		189
121	$msg .= "\n"	190	$msg .= "\n"
122	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
123		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
124	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
125	};	196	};
126	}	197	}
		198
		199	$Coro::State::DIEHOOK = sub {
		200	warn Carp::longmess $_[0];
		201	Coro::terminate;
		202	};
127		203
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	204	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	205	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	206	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	207	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	208	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		209	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	210	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		211
135	# we bless all objects into (empty) derived classes to force a method lookup	212	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	213	# within the Safe compartment.
137	for my $pkg (qw(	214	for my $pkg (qw(
138	cf::global cf::attachable	215	cf::global cf::attachable
…		…
143	)) {	220	)) {
144	no strict 'refs';	221	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	222	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	223	}
147		224
148	$Event::DIED = sub {	225	$EV::DIED = sub {
149	warn "error in event callback: @_";	226	warn "error in event callback: @_";
150	};	227	};
151		228
152	my %ext_pkg;	229	#############################################################################
153	my @exts;
154	my @hook;
155		230
156	=head2 UTILITY FUNCTIONS	231	=head2 UTILITY FUNCTIONS
157		232
158	=over 4	233	=over 4
159		234
160	=cut	235	=item dumpval $ref
161		236
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	237	=cut
163		238
		239	sub dumpval {
		240	eval {
		241	local $SIG{__DIE__};
		242	my $d;
		243	if (1) {
		244	$d = new Data::Dumper([$_[0]], ["*var"]);
		245	$d->Terse(1);
		246	$d->Indent(2);
		247	$d->Quotekeys(0);
		248	$d->Useqq(1);
		249	#$d->Bless(...);
		250	$d->Seen($_[1]) if @_ > 1;
		251	$d = $d->Dump();
		252	}
		253	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		254	$d
		255	} || "[unable to dump $_[0]: '$@']";
		256	}
		257
164	=item $ref = cf::from_json $json	258	=item $ref = cf::decode_json $json
165		259
166	Converts a JSON string into the corresponding perl data structure.	260	Converts a JSON string into the corresponding perl data structure.
167		261
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	262	=item $json = cf::encode_json $ref
176		263
177	Converts a perl data structure into its JSON representation.	264	Converts a perl data structure into its JSON representation.
178		265
179	=cut	266	=cut
180		267
181	sub to_json($) {	268	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	269
183	JSON::Syck::Dump $_[0]	270	sub encode_json($) { $json_coder->encode ($_[0]) }
		271	sub decode_json($) { $json_coder->decode ($_[0]) }
		272
		273	=item cf::lock_wait $string
		274
		275	Wait until the given lock is available. See cf::lock_acquire.
		276
		277	=item my $lock = cf::lock_acquire $string
		278
		279	Wait until the given lock is available and then acquires it and returns
		280	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		281	for example when the coroutine gets canceled), the lock is automatically
		282	returned.
		283
		284	Locks are *not* recursive, locking from the same coro twice results in a
		285	deadlocked coro.
		286
		287	Lock names should begin with a unique identifier (for example, cf::map::find
		288	uses map_find and cf::map::load uses map_load).
		289
		290	=item $locked = cf::lock_active $string
		291
		292	Return true if the lock is currently active, i.e. somebody has locked it.
		293
		294	=cut
		295
		296	our %LOCK;
		297	our %LOCKER;#d#
		298
		299	sub lock_wait($) {
		300	my ($key) = @_;
		301
		302	if ($LOCKER{$key} == $Coro::current) {#d#
		303	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		304	return;#d#
		305	}#d#
		306
		307	# wait for lock, if any
		308	while ($LOCK{$key}) {
		309	push @{ $LOCK{$key} }, $Coro::current;
		310	Coro::schedule;
		311	}
184	}	312	}
		313
		314	sub lock_acquire($) {
		315	my ($key) = @_;
		316
		317	# wait, to be sure we are not locked
		318	lock_wait $key;
		319
		320	$LOCK{$key} = [];
		321	$LOCKER{$key} = $Coro::current;#d#
		322
		323	Coro::guard {
		324	delete $LOCKER{$key};#d#
		325	# wake up all waiters, to be on the safe side
		326	$_->ready for @{ delete $LOCK{$key} };
		327	}
		328	}
		329
		330	sub lock_active($) {
		331	my ($key) = @_;
		332
		333	! ! $LOCK{$key}
		334	}
		335
		336	sub freeze_mainloop {
		337	return unless $TICK_WATCHER->is_active;
		338
		339	my $guard = Coro::guard {
		340	$TICK_WATCHER->start;
		341	};
		342	$TICK_WATCHER->stop;
		343	$guard
		344	}
		345
		346	=item cf::periodic $interval, $cb
		347
		348	Like EV::periodic, but randomly selects a starting point so that the actions
		349	get spread over timer.
		350
		351	=cut
		352
		353	sub periodic($$) {
		354	my ($interval, $cb) = @_;
		355
		356	my $start = rand List::Util::min 180, $interval;
		357
		358	EV::periodic $start, $interval, 0, $cb
		359	}
		360
		361	=item cf::get_slot $time[, $priority[, $name]]
		362
		363	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		364	This call blocks and returns only when you have at least C<$time> seconds
		365	of cpu time till the next tick. The slot is only valid till the next cede.
		366
		367	The optional C<$name> can be used to identify the job to run. It might be
		368	used for statistical purposes and should identify the same time-class.
		369
		370	Useful for short background jobs.
		371
		372	=cut
		373
		374	our @SLOT_QUEUE;
		375	our $SLOT_QUEUE;
		376
		377	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		378	$SLOT_QUEUE = Coro::async {
		379	$Coro::current->desc ("timeslot manager");
		380
		381	my $signal = new Coro::Signal;
		382
		383	while () {
		384	next_job:
		385	my $avail = cf::till_tick;
		386	if ($avail > 0.01) {
		387	for (0 .. $#SLOT_QUEUE) {
		388	if ($SLOT_QUEUE[$_][0] < $avail) {
		389	my $job = splice @SLOT_QUEUE, $_, 1, ();
		390	$job->[2]->send;
		391	Coro::cede;
		392	goto next_job;
		393	}
		394	}
		395	}
		396
		397	if (@SLOT_QUEUE) {
		398	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		399	push @cf::WAIT_FOR_TICK, $signal;
		400	$signal->wait;
		401	} else {
		402	Coro::schedule;
		403	}
		404	}
		405	};
		406
		407	sub get_slot($;$$) {
		408	my ($time, $pri, $name) = @_;
		409
		410	$time = $TICK * .6 if $time > $TICK * .6;
		411	my $sig = new Coro::Signal;
		412
		413	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		414	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		415	$SLOT_QUEUE->ready;
		416	$sig->wait;
		417	}
		418
		419	=item cf::async { BLOCK }
		420
		421	Currently the same as Coro::async_pool, meaning you cannot use
		422	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		423	thing you are allowed to do is call C<prio> on it.
		424
		425	=cut
		426
		427	BEGIN { *async = \&Coro::async_pool }
185		428
186	=item cf::sync_job { BLOCK }	429	=item cf::sync_job { BLOCK }
187		430
188	The design of crossfire+ requires that the main coro ($Coro::main) is	431	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	432	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	433	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		434	acceptable.
191		435
192	If it must be done, put the blocking parts into C<sync_job>. This will run	436	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	437	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	438	server will be frozen during this time, so the block should either finish
195	fast or be very important.	439	fast or be very important.
…		…
197	=cut	441	=cut
198		442
199	sub sync_job(&) {	443	sub sync_job(&) {
200	my ($job) = @_;	444	my ($job) = @_;
201		445
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	446	if ($Coro::current == $Coro::main) {
		447	my $time = EV::time;
		448
		449	# this is the main coro, too bad, we have to block
		450	# till the operation succeeds, freezing the server :/
		451
		452	LOG llevError, Carp::longmess "sync job";#d#
		453
212	# TODO: use suspend/resume instead	454	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	455	# (but this is cancel-safe)
		456	my $freeze_guard = freeze_mainloop;
		457
		458	my $busy = 1;
		459	my @res;
		460
		461	(async {
		462	$Coro::current->desc ("sync job coro");
		463	@res = eval { $job->() };
		464	warn $@ if $@;
		465	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	466	})->prio (Coro::PRIO_MAX);
		467
215	while ($busy) {	468	while ($busy) {
		469	if (Coro::nready) {
216	Coro::cede_notself;	470	Coro::cede_notself;
217	Event::one_event unless Coro::nready;	471	} else {
		472	EV::loop EV::LOOP_ONESHOT;
218	}	473	}
		474	}
		475
		476	$time = EV::time - $time;
		477
		478	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		479	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		480
		481	$tick_start += $time; # do not account sync jobs to server load
		482
		483	wantarray ? @res : $res[0]
219	} else {	484	} else {
220	$coro->join;	485	# we are in another coroutine, how wonderful, everything just works
		486
		487	$job->()
221	}	488	}
222
223	wantarray ? @res : $res[0]
224	}	489	}
225		490
226	=item $coro = cf::coro { BLOCK }	491	=item $coro = cf::async_ext { BLOCK }
227		492
228	Creates and returns a new coro. This coro is automcatially being canceled	493	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	494	extension calling this is being unloaded.
230		495
231	=cut	496	=cut
232		497
233	sub coro(&) {	498	sub async_ext(&) {
234	my $cb = shift;	499	my $cb = shift;
235		500
236	my $coro; $coro = async {	501	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		502
243	$coro->on_destroy (sub {	503	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	504	delete $EXT_CORO{$coro+0};
245	});	505	});
246	$EXT_CORO{$coro+0} = $coro;	506	$EXT_CORO{$coro+0} = $coro;
247		507
248	$coro	508	$coro
249	}	509	}
250		510
251	sub write_runtime {	511	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		512
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	513	Executes the given code block with the given arguments in a seperate
255	or return;	514	process, returning the results. Everything must be serialisable with
		515	Coro::Storable. May, of course, block. Note that the executed sub may
		516	never block itself or use any form of event handling.
256		517
257	my $value = $cf::RUNTIME;	518	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		519
261	aio_fsync $fh	520	sub fork_call(&@) {
262	and return;	521	my ($cb, @args) = @_;
263		522
264	close $fh	523	# we seemingly have to make a local copy of the whole thing,
265	or return;	524	# otherwise perl prematurely frees the stuff :/
		525	# TODO: investigate and fix (likely this will be rather laborious)
266		526
267	aio_rename "$runtime~", $runtime	527	my @res = Coro::Util::fork_eval {
268	and return;	528	reset_signals;
		529	&$cb
		530	}, @args;
269		531
		532	wantarray ? @res : $res[-1]
		533	}
		534
		535	=item $value = cf::db_get $family => $key
		536
		537	Returns a single value from the environment database.
		538
		539	=item cf::db_put $family => $key => $value
		540
		541	Stores the given C<$value> in the family. It can currently store binary
		542	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		543
		544	=item $db = cf::db_table "name"
		545
		546	Create and/or open a new database table. The string must not be "db" and must be unique
		547	within each server.
		548
		549	=cut
		550
		551	sub db_table($) {
		552	my ($name) = @_;
		553	my $db = BDB::db_create $DB_ENV;
		554
		555	eval {
		556	$db->set_flags (BDB::CHKSUM);
		557
		558	utf8::encode $name;
		559	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		560	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		561	cf::cleanup "db_open(db): $!" if $!;
		562	};
		563	cf::cleanup "db_open(db): $@" if $@;
		564
		565	$db
		566	}
		567
		568	our $DB;
		569
		570	sub db_init {
		571	cf::sync_job {
		572	$DB ||= db_table "db";
		573	};
		574	}
		575
		576	sub db_get($$) {
		577	my $key = "$_[0]/$_[1]";
		578
		579	cf::sync_job {
		580	BDB::db_get $DB, undef, $key, my $data;
		581
		582	$! ? ()
		583	: $data
270	1	584	}
		585	}
		586
		587	sub db_put($$$) {
		588	BDB::dbreq_pri 4;
		589	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		590	}
		591
		592	=item cf::cache $id => [$paths...], $processversion => $process
		593
		594	Generic caching function that returns the value of the resource $id,
		595	caching and regenerating as required.
		596
		597	This function can block.
		598
		599	=cut
		600
		601	sub cache {
		602	my ($id, $src, $processversion, $process) = @_;
		603
		604	my $meta =
		605	join "\x00",
		606	$processversion,
		607	map {
		608	aio_stat $_
		609	and Carp::croak "$_: $!";
		610
		611	($_, (stat _)[7,9])
		612	} @$src;
		613
		614	my $dbmeta = db_get cache => "$id/meta";
		615	if ($dbmeta ne $meta) {
		616	# changed, we may need to process
		617
		618	my @data;
		619	my $md5;
		620
		621	for (0 .. $#$src) {
		622	0 <= aio_load $src->[$_], $data[$_]
		623	or Carp::croak "$src->[$_]: $!";
		624	}
		625
		626	# if processing is expensive, check
		627	# checksum first
		628	if (1) {
		629	$md5 =
		630	join "\x00",
		631	$processversion,
		632	map {
		633	cf::cede_to_tick;
		634	($src->[$_], Digest::MD5::md5_hex $data[$_])
		635	} 0.. $#$src;
		636
		637
		638	my $dbmd5 = db_get cache => "$id/md5";
		639	if ($dbmd5 eq $md5) {
		640	db_put cache => "$id/meta", $meta;
		641
		642	return db_get cache => "$id/data";
		643	}
		644	}
		645
		646	my $t1 = Time::HiRes::time;
		647	my $data = $process->(\@data);
		648	my $t2 = Time::HiRes::time;
		649
		650	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		651
		652	db_put cache => "$id/data", $data;
		653	db_put cache => "$id/md5" , $md5;
		654	db_put cache => "$id/meta", $meta;
		655
		656	return $data;
		657	}
		658
		659	db_get cache => "$id/data"
		660	}
		661
		662	=item cf::datalog type => key => value, ...
		663
		664	Log a datalog packet of the given type with the given key-value pairs.
		665
		666	=cut
		667
		668	sub datalog($@) {
		669	my ($type, %kv) = @_;
		670	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	671	}
272		672
273	=back	673	=back
274		674
275	=cut	675	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		676
387	#############################################################################	677	#############################################################################
388		678
389	=head2 ATTACHABLE OBJECTS	679	=head2 ATTACHABLE OBJECTS
390		680
…		…
392	attach callbacks/event handlers (a collection of which is called an "attachment")	682	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	683	to it. All such attachable objects support the following methods.
394		684
395	In the following description, CLASS can be any of C<global>, C<object>	685	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	686	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	687	Deliantra).
398		688
399	=over 4	689	=over 4
400		690
401	=item $attachable->attach ($attachment, key => $value...)	691	=item $attachable->attach ($attachment, key => $value...)
402		692
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	806	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	807	our @CB_MAP = ();
518		808
519	my %attachment;	809	my %attachment;
520		810
		811	sub cf::attachable::thawer_merge {
		812	# simply override everything except _meta
		813	local $_[0]{_meta};
		814	%{$_[0]} = %{$_[1]};
		815	}
		816
521	sub _attach_cb($$$$) {	817	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	818	my ($registry, $event, $prio, $cb) = @_;
523		819
524	use sort 'stable';	820	use sort 'stable';
525		821
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	855	$registry = $CB_TYPE[$object_type] ||= [];
560		856
561	} elsif ($type eq "subtype") {	857	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	858	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	859	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	860	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		861
566	} elsif ($type eq "package") {	862	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	863	my $pkg = shift @arg;
568		864
569	while (my ($name, $id) = each %cb_id) {	865	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	894	_attach $registry, $klass, @attach;
599	}	895	}
600		896
601	$obj->{$name} = \%arg;	897	$obj->{$name} = \%arg;
602	} else {	898	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	899	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	900	}
605		901
606	$obj->{_attachment}{$name} = undef;	902	$obj->{_attachment}{$name} = undef;
607	}	903	}
608		904
…		…
610	if (ref $_[0]) {	906	if (ref $_[0]) {
611	_object_attach @_;	907	_object_attach @_;
612	} else {	908	} else {
613	_attach shift->_attach_registry, @_;	909	_attach shift->_attach_registry, @_;
614	}	910	}
		911	_recalc_want;
615	};	912	};
616		913
617	# all those should be optimised	914	# all those should be optimised
618	sub cf::attachable::detach {	915	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	916	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	919	delete $obj->{_attachment}{$name};
623	reattach ($obj);	920	reattach ($obj);
624	} else {	921	} else {
625	Carp::croak "cannot, currently, detach class attachments";	922	Carp::croak "cannot, currently, detach class attachments";
626	}	923	}
		924	_recalc_want;
627	};	925	};
628		926
629	sub cf::attachable::attached {	927	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	928	my ($obj, $name) = @_;
631		929
…		…
646	";	944	";
647	die if $@;	945	die if $@;
648	}	946	}
649		947
650	our $override;	948	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	949	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		950
653	sub override {	951	sub override {
654	$override = 1;	952	$override = 1;
655	@invoke_results = ();	953	@INVOKE_RESULTS = (@_);
656	}	954	}
657		955
658	sub do_invoke {	956	sub do_invoke {
659	my $event = shift;	957	my $event = shift;
660	my $callbacks = shift;	958	my $callbacks = shift;
661		959
662	@invoke_results = ();	960	@INVOKE_RESULTS = ();
663		961
664	local $override;	962	local $override;
665		963
666	for (@$callbacks) {	964	for (@$callbacks) {
667	eval { &{$_->[1]} };	965	eval { &{$_->[1]} };
…		…
676	}	974	}
677		975
678	0	976	0
679	}	977	}
680		978
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	979	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		980
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	981	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		982
685	Generate an object-specific event with the given arguments.	983	Generate an object-specific event with the given arguments.
686		984
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	985	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	986	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	987	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		988
691	=back	989	=back
692		990
693	=cut	991	=cut
694		992
695	#############################################################################	993	#############################################################################
696	# object support	994	# object support
		995
		996	sub _object_equal($$);
		997	sub _object_equal($$) {
		998	my ($a, $b) = @_;
		999
		1000	return 0 unless (ref $a) eq (ref $b);
		1001
		1002	if ("HASH" eq ref $a) {
		1003	my @ka = keys %$a;
		1004	my @kb = keys %$b;
		1005
		1006	return 0 if @ka != @kb;
		1007
		1008	for (0 .. $#ka) {
		1009	return 0 unless $ka[$_] eq $kb[$_];
		1010	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1011	}
		1012
		1013	} elsif ("ARRAY" eq ref $a) {
		1014
		1015	return 0 if @$a != @$b;
		1016
		1017	for (0 .. $#$a) {
		1018	return 0 unless _object_equal $a->[$_], $b->[$_];
		1019	}
		1020
		1021	} elsif ($a ne $b) {
		1022	return 0;
		1023	}
		1024
		1025	1
		1026	}
		1027
		1028	our $SLOW_MERGES;#d#
		1029	sub _can_merge {
		1030	my ($ob1, $ob2) = @_;
		1031
		1032	++$SLOW_MERGES;#d#
		1033
		1034	# we do the slow way here
		1035	return _object_equal $ob1, $ob2
		1036	}
697		1037
698	sub reattach {	1038	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1039	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1040	my ($obj) = @_;
		1041
		1042	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		1043
702	my $registry = $obj->registry;	1044	my $registry = $obj->registry;
703		1045
704	@$registry = ();	1046	@$registry = ();
705		1047
…		…
720	cf::attachable->attach (	1062	cf::attachable->attach (
721	prio => -1000000,	1063	prio => -1000000,
722	on_instantiate => sub {	1064	on_instantiate => sub {
723	my ($obj, $data) = @_;	1065	my ($obj, $data) = @_;
724		1066
725	$data = from_json $data;	1067	$data = decode_json $data;
726		1068
727	for (@$data) {	1069	for (@$data) {
728	my ($name, $args) = @$_;	1070	my ($name, $args) = @$_;
729		1071
730	$obj->attach ($name, %{$args || {} });	1072	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1088	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1089	my ($filename, $rdata, $objs) = @_;
748		1090
749	sync_job {	1091	sync_job {
750	if (length $$rdata) {	1092	if (length $$rdata) {
		1093	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1094	warn sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1095	$decname, length $$rdata, scalar @$objs;
753		1096
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1099	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	1100	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1101	close $fh;
759		1102
760	if (@$objs) {	1103	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1106	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1107	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1108	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1109	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1110	aio_rename "$filename.pst~", "$filename.pst";
768	}	1111	}
769	} else {	1112	} else {
770	aio_unlink "$filename.pst";	1113	aio_unlink "$filename.pst";
…		…
776	}	1119	}
777	} else {	1120	} else {
778	aio_unlink $filename;	1121	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1122	aio_unlink "$filename.pst";
780	}	1123	}
781	}	1124	};
782	}	1125	}
783		1126
784	sub object_freezer_as_string {	1127	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1128	my ($rdata, $objs) = @_;
786		1129
…		…
798	or return;	1141	or return;
799		1142
800	unless (aio_stat "$filename.pst") {	1143	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1144	(aio_load "$filename.pst", $av) >= 0
802	or return;	1145	or return;
		1146
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1147	my $st = eval { Coro::Storable::thaw $av };
		1148	$av = $st->{objs};
804	}	1149	}
805		1150
		1151	utf8::decode (my $decname = $filename);
		1152	warn sprintf "loading %s (%d,%d)\n",
		1153	$decname, length $data, scalar @{$av || []};
		1154
806	return ($data, $av);	1155	($data, $av)
807	}	1156	}
		1157
		1158	=head2 COMMAND CALLBACKS
		1159
		1160	=over 4
		1161
		1162	=cut
808		1163
809	#############################################################################	1164	#############################################################################
810	# command handling &c	1165	# command handling &c
811		1166
812	=item cf::register_command $name => \&callback($ob,$args);	1167	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1180	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1181	}
827		1182
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1183	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1184
830	Register a callbackf ro execution when the client sends an extcmd packet.	1185	Register a callback for execution when the client sends an (synchronous)
		1186	extcmd packet. Ext commands will be processed in the order they are
		1187	received by the server, like other user commands. The first argument is
		1188	the logged-in player. Ext commands can only be processed after a player
		1189	has logged in successfully.
831		1190
832	If the callback returns something, it is sent back as if reply was being	1191	If the callback returns something, it is sent back as if reply was being
833	called.	1192	called.
834		1193
		1194	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1195
		1196	Register a callback for execution when the client sends an (asynchronous)
		1197	exticmd packet. Exti commands are processed by the server as soon as they
		1198	are received, i.e. out of order w.r.t. other commands. The first argument
		1199	is a client socket. Exti commands can be received anytime, even before
		1200	log-in.
		1201
		1202	If the callback returns something, it is sent back as if reply was being
		1203	called.
		1204
835	=cut	1205	=cut
836		1206
837	sub register_extcmd {	1207	sub register_extcmd {
838	my ($name, $cb) = @_;	1208	my ($name, $cb) = @_;
839		1209
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1210	$EXTCMD{$name} = $cb;
		1211	}
		1212
		1213	sub register_exticmd {
		1214	my ($name, $cb) = @_;
		1215
		1216	$EXTICMD{$name} = $cb;
844	}	1217	}
845		1218
846	cf::player->attach (	1219	cf::player->attach (
847	on_command => sub {	1220	on_command => sub {
848	my ($pl, $name, $params) = @_;	1221	my ($pl, $name, $params) = @_;
…		…
857	cf::override;	1230	cf::override;
858	},	1231	},
859	on_extcmd => sub {	1232	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1233	my ($pl, $buf) = @_;
861		1234
862	my $msg = eval { from_json $buf };	1235	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1236
864	if (ref $msg) {	1237	if (ref $msg) {
		1238	my ($type, $reply, @payload) =
		1239	"ARRAY" eq ref $msg
		1240	? @$msg
		1241	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1242
		1243	my @reply;
		1244
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1245	if (my $cb = $EXTCMD{$type}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1246	@reply = $cb->($pl, @payload);
867	$pl->ext_reply ($msg->{msgid}, %reply);
868	}
869	}	1247	}
		1248
		1249	$pl->ext_reply ($reply, @reply)
		1250	if $reply;
		1251
870	} else {	1252	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1253	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
872	}	1254	}
873		1255
874	cf::override;	1256	cf::override;
875	},	1257	},
876	);	1258	);
877		1259
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1260	sub load_extensions {
		1261	cf::sync_job {
		1262	my %todo;
		1263
		1264	for my $path (<$LIBDIR/*.ext>) {
		1265	next unless -r $path;
		1266
		1267	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1268	my $base = $1;
		1269	my $pkg = $1;
		1270	$pkg =~ s/[^[:word:]]/_/g;
		1271	$pkg = "ext::$pkg";
		1272
		1273	open my $fh, "<:utf8", $path
		1274	or die "$path: $!";
		1275
		1276	my $source = do { local $/; <$fh> };
		1277
		1278	my %ext = (
		1279	path => $path,
		1280	base => $base,
		1281	pkg => $pkg,
		1282	);
		1283
		1284	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1285	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1286
		1287	$ext{source} =
		1288	"package $pkg; use strict; use utf8;\n"
		1289	. "#line 1 \"$path\"\n{\n"
		1290	. $source
		1291	. "\n};\n1";
		1292
		1293	$todo{$base} = \%ext;
		1294	}
		1295
		1296	my %done;
		1297	while (%todo) {
		1298	my $progress;
		1299
		1300	while (my ($k, $v) = each %todo) {
		1301	for (split /,\s*/, $v->{meta}{depends}) {
		1302	goto skip
		1303	unless exists $done{$_};
		1304	}
		1305
		1306	warn "... loading '$k' into '$v->{pkg}'\n";
		1307
		1308	unless (eval $v->{source}) {
		1309	my $msg = $@ ? "$v->{path}: $@\n"
		1310	: "$v->{base}: extension inactive.\n";
		1311
		1312	if (exists $v->{meta}{mandatory}) {
		1313	warn $msg;
		1314	warn "mandatory extension failed to load, exiting.\n";
		1315	exit 1;
		1316	}
		1317
		1318	warn $msg;
		1319	}
		1320
		1321	$done{$k} = delete $todo{$k};
		1322	push @EXTS, $v->{pkg};
		1323	$progress = 1;
		1324	}
		1325
		1326	skip:
		1327	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1328	unless $progress;
		1329	}
		1330	};
		1331	}
		1332
		1333	#############################################################################
		1334
		1335	=back
		1336
		1337	=head2 CORE EXTENSIONS
		1338
		1339	Functions and methods that extend core crossfire objects.
		1340
		1341	=cut
		1342
		1343	package cf::player;
		1344
		1345	use Coro::AIO;
		1346
		1347	=head3 cf::player
		1348
		1349	=over 4
		1350
		1351	=item cf::player::num_playing
		1352
		1353	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1354
		1355	=cut
		1356
		1357	sub num_playing {
		1358	scalar grep
		1359	$_->ob->map
		1360	&& !$_->hidden
		1361	&& !$_->ob->flag (cf::FLAG_WIZ),
		1362	cf::player::list
		1363	}
		1364
		1365	=item cf::player::find $login
		1366
		1367	Returns the given player object, loading it if necessary (might block).
		1368
		1369	=cut
		1370
		1371	sub playerdir($) {
		1372	"$PLAYERDIR/"
		1373	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1374	}
		1375
		1376	sub path($) {
		1377	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1378
		1379	(playerdir $login) . "/playerdata"
		1380	}
		1381
		1382	sub find_active($) {
		1383	$cf::PLAYER{$_[0]}
		1384	and $cf::PLAYER{$_[0]}->active
		1385	and $cf::PLAYER{$_[0]}
		1386	}
		1387
		1388	sub exists($) {
		1389	my ($login) = @_;
		1390
		1391	$cf::PLAYER{$login}
		1392	or cf::sync_job { !aio_stat path $login }
		1393	}
		1394
		1395	sub find($) {
		1396	return $cf::PLAYER{$_[0]} || do {
		1397	my $login = $_[0];
		1398
		1399	my $guard = cf::lock_acquire "user_find:$login";
		1400
		1401	$cf::PLAYER{$_[0]} || do {
		1402	# rename old playerfiles to new ones
		1403	#TODO: remove when no longer required
		1404	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1405	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1406	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1407	aio_unlink +(playerdir $login) . "/$login.pl";
		1408
		1409	my $f = new_from_file cf::object::thawer path $login
		1410	or return;
		1411
		1412	my $pl = cf::player::load_pl $f
		1413	or return;
		1414	local $cf::PLAYER_LOADING{$login} = $pl;
		1415	$f->resolve_delayed_derefs;
		1416	$cf::PLAYER{$login} = $pl
		1417	}
		1418	}
		1419	}
		1420
		1421	sub save($) {
		1422	my ($pl) = @_;
		1423
		1424	return if $pl->{deny_save};
		1425
		1426	my $path = path $pl;
		1427	my $guard = cf::lock_acquire "user_save:$path";
		1428
		1429	return if $pl->{deny_save};
		1430
		1431	aio_mkdir playerdir $pl, 0770;
		1432	$pl->{last_save} = $cf::RUNTIME;
		1433
		1434	$pl->save_pl ($path);
		1435	cf::cede_to_tick;
		1436	}
		1437
		1438	sub new($) {
		1439	my ($login) = @_;
		1440
		1441	my $self = create;
		1442
		1443	$self->ob->name ($login);
		1444	$self->{deny_save} = 1;
		1445
		1446	$cf::PLAYER{$login} = $self;
		1447
		1448	$self
		1449	}
		1450
		1451	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1452
		1453	=cut
		1454
		1455	sub send_msg {
		1456	my $ns = shift->ns
		1457	or return;
		1458	$ns->send_msg (@_);
		1459	}
		1460
		1461	=item $pl->quit_character
		1462
		1463	Nukes the player without looking back. If logged in, the connection will
		1464	be destroyed. May block for a long time.
		1465
		1466	=cut
		1467
		1468	sub quit_character {
		1469	my ($pl) = @_;
		1470
		1471	my $name = $pl->ob->name;
		1472
		1473	$pl->{deny_save} = 1;
		1474	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1475
		1476	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1477	$pl->deactivate;
		1478	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1479	$pl->ns->destroy if $pl->ns;
		1480
		1481	my $path = playerdir $pl;
		1482	my $temp = "$path~$cf::RUNTIME~deleting~";
		1483	aio_rename $path, $temp;
		1484	delete $cf::PLAYER{$pl->ob->name};
		1485	$pl->destroy;
		1486
		1487	my $prefix = qr<^~\Q$name\E/>;
		1488
		1489	# nuke player maps
		1490	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1491
		1492	IO::AIO::aio_rmtree $temp;
		1493	}
		1494
		1495	=item $pl->kick
		1496
		1497	Kicks a player out of the game. This destroys the connection.
		1498
		1499	=cut
		1500
		1501	sub kick {
		1502	my ($pl, $kicker) = @_;
		1503
		1504	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1505	$pl->killer ("kicked");
		1506	$pl->ns->destroy;
		1507	}
		1508
		1509	=item cf::player::list_logins
		1510
		1511	Returns am arrayref of all valid playernames in the system, can take a
		1512	while and may block, so not sync_job-capable, ever.
		1513
		1514	=cut
		1515
		1516	sub list_logins {
		1517	my $dirs = aio_readdir $PLAYERDIR
		1518	or return [];
		1519
		1520	my @logins;
		1521
		1522	for my $login (@$dirs) {
		1523	my $path = path $login;
		1524
		1525	# a .pst is a dead give-away for a valid player
		1526	unless (-e "$path.pst") {
		1527	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1528	aio_read $fh, 0, 512, my $buf, 0 or next;
		1529	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1530	}
		1531
		1532	utf8::decode $login;
		1533	push @logins, $login;
		1534	}
		1535
		1536	\@logins
		1537	}
		1538
		1539	=item $player->maps
		1540
		1541	Returns an arrayref of map paths that are private for this
		1542	player. May block.
		1543
		1544	=cut
		1545
		1546	sub maps($) {
		1547	my ($pl) = @_;
		1548
		1549	$pl = ref $pl ? $pl->ob->name : $pl;
		1550
		1551	my $files = aio_readdir playerdir $pl
		1552	or return;
		1553
		1554	my @paths;
		1555
		1556	for (@$files) {
		1557	utf8::decode $_;
		1558	next if /\.(?:pl|pst)$/;
		1559	next unless /^$PATH_SEP/o;
		1560
		1561	push @paths, cf::map::normalise "~$pl/$_";
		1562	}
		1563
		1564	\@paths
		1565	}
		1566
		1567	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1568
		1569	Expand crossfire pod fragments into protocol xml.
		1570
		1571	=cut
		1572
		1573	use re 'eval';
		1574
		1575	my $group;
		1576	my $interior; $interior = qr{
		1577	# match a pod interior sequence sans C<< >>
		1578	(?:
		1579	\ (.*?)\ (?{ $group = $^N })
		1580	| < (??{$interior}) >
		1581	)
		1582	}x;
		1583
		1584	sub expand_cfpod {
		1585	my ($self, $pod) = @_;
		1586
		1587	my $xml;
		1588
		1589	while () {
		1590	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1591	$group = $1;
		1592
		1593	$group =~ s/&/&amp;/g;
		1594	$group =~ s/</&lt;/g;
		1595
		1596	$xml .= $group;
		1597	} elsif ($pod =~ m%\G
		1598	([BCGHITU])
		1599	<
		1600	(?:
		1601	([^<>]*) (?{ $group = $^N })
		1602	| < $interior >
		1603	)
		1604	>
		1605	%gcsx
		1606	) {
		1607	my ($code, $data) = ($1, $group);
		1608
		1609	if ($code eq "B") {
		1610	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1611	} elsif ($code eq "I") {
		1612	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1613	} elsif ($code eq "U") {
		1614	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1615	} elsif ($code eq "C") {
		1616	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1617	} elsif ($code eq "T") {
		1618	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1619	} elsif ($code eq "G") {
		1620	my ($male, $female) = split /\|/, $data;
		1621	$data = $self->gender ? $female : $male;
		1622	$xml .= expand_cfpod ($self, $data);
		1623	} elsif ($code eq "H") {
		1624	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1625	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1626	"")
		1627	[$self->{hintmode}];
		1628	} else {
		1629	$xml .= "error processing '$code($data)' directive";
		1630	}
		1631	} else {
		1632	if ($pod =~ /\G(.+)/) {
		1633	warn "parse error while expanding $pod (at $1)";
		1634	}
		1635	last;
		1636	}
		1637	}
		1638
		1639	for ($xml) {
		1640	# create single paragraphs (very hackish)
		1641	s/(?<=\S)\n(?=\w)/ /g;
		1642
		1643	# compress some whitespace
		1644	s/\s+\n/\n/g; # ws line-ends
		1645	s/\n\n+/\n/g; # double lines
		1646	s/^\n+//; # beginning lines
		1647	s/\n+$//; # ending lines
		1648	}
		1649
		1650	$xml
		1651	}
		1652
		1653	no re 'eval';
		1654
		1655	sub hintmode {
		1656	$_[0]{hintmode} = $_[1] if @_ > 1;
		1657	$_[0]{hintmode}
		1658	}
		1659
		1660	=item $player->ext_reply ($msgid, @msg)
		1661
		1662	Sends an ext reply to the player.
		1663
		1664	=cut
		1665
		1666	sub ext_reply($$@) {
		1667	my ($self, $id, @msg) = @_;
		1668
		1669	$self->ns->ext_reply ($id, @msg)
		1670	}
		1671
		1672	=item $player->ext_msg ($type, @msg)
		1673
		1674	Sends an ext event to the client.
		1675
		1676	=cut
		1677
		1678	sub ext_msg($$@) {
		1679	my ($self, $type, @msg) = @_;
		1680
		1681	$self->ns->ext_msg ($type, @msg);
		1682	}
		1683
		1684	=head3 cf::region
		1685
		1686	=over 4
		1687
		1688	=cut
		1689
		1690	package cf::region;
		1691
		1692	=item cf::region::find_by_path $path
		1693
		1694	Tries to decuce the likely region for a map knowing only its path.
		1695
		1696	=cut
		1697
		1698	sub find_by_path($) {
885	my ($path) = @_;	1699	my ($path) = @_;
886		1700
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1701	my ($match, $specificity);
888	my $base = $1;
889	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892		1702
893	warn "loading '$path' into '$pkg'\n";	1703	for my $region (list) {
894		1704	if ($region->{match} && $path =~ $region->{match}) {
895	open my $fh, "<:utf8", $path	1705	($match, $specificity) = ($region, $region->specificity)
896	or die "$path: $!";	1706	if $region->specificity > $specificity;
897		1707	}
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	1708	}
927		1709
928	# remove commands	1710	$match
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}
953
954	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;
957	eval {
958	load_extension $ext;
959	1
960	} or warn "$ext not loaded: $@";
961	}
962	}
963
964	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001
1002	=head2 CORE EXTENSIONS
1003
1004	Functions and methods that extend core crossfire objects.
1005
1006	=head3 cf::player
1007
1008	=over 4
1009
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut
1015
1016	sub cf::player::exists($) {
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022
1023	Sends an ext reply to the player.
1024
1025	=cut
1026
1027	sub cf::player::ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;
1029
1030	$msg{msgid} = $id;
1031
1032	$self->send ("ext " . to_json \%msg);
1033	}	1711	}
1034		1712
1035	=back	1713	=back
1036
1037		1714
1038	=head3 cf::map	1715	=head3 cf::map
1039		1716
1040	=over 4	1717	=over 4
1041		1718
…		…
1044	package cf::map;	1721	package cf::map;
1045		1722
1046	use Fcntl;	1723	use Fcntl;
1047	use Coro::AIO;	1724	use Coro::AIO;
1048		1725
		1726	use overload
		1727	'""' => \&as_string,
		1728	fallback => 1;
		1729
1049	our $MAX_RESET = 7200;	1730	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1731	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1732
1054	sub generate_random_map {	1733	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1734	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1736	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1740	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1741	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1742	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1743	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1744	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1745	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1746	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1747	(cf::region::find $rmp->{region}), $rmp->{custom}
		1748	)
		1749	}
		1750
		1751	=item cf::map->register ($regex, $prio)
		1752
		1753	Register a handler for the map path matching the given regex at the
		1754	givne priority (higher is better, built-in handlers have priority 0, the
		1755	default).
		1756
		1757	=cut
		1758
		1759	sub register {
		1760	my (undef, $regex, $prio) = @_;
		1761	my $pkg = caller;
		1762
		1763	no strict;
		1764	push @{"$pkg\::ISA"}, __PACKAGE__;
		1765
		1766	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1767	}
		1768
		1769	# also paths starting with '/'
		1770	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1771
		1772	sub thawer_merge {
		1773	my ($self, $merge) = @_;
		1774
		1775	# we have to keep some variables in memory intact
		1776	local $self->{path};
		1777	local $self->{load_path};
		1778
		1779	$self->SUPER::thawer_merge ($merge);
		1780	}
		1781
		1782	sub normalise {
		1783	my ($path, $base) = @_;
		1784
		1785	$path = "$path"; # make sure its a string
		1786
		1787	$path =~ s/\.map$//;
		1788
		1789	# map plan:
		1790	#
		1791	# /! non-realised random map exit (special hack!)
		1792	# {... are special paths that are not being touched
		1793	# ?xxx/... are special absolute paths
		1794	# ?random/... random maps
		1795	# /... normal maps
		1796	# ~user/... per-player map of a specific user
		1797
		1798	$path =~ s/$PATH_SEP/\//go;
		1799
		1800	# treat it as relative path if it starts with
		1801	# something that looks reasonable
		1802	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1803	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1804
		1805	$base =~ s{[^/]+/?$}{};
		1806	$path = "$base/$path";
		1807	}
		1808
		1809	for ($path) {
		1810	redo if s{//}{/};
		1811	redo if s{/\.?/}{/};
		1812	redo if s{/[^/]+/\.\./}{/};
		1813	}
		1814
		1815	$path
		1816	}
		1817
		1818	sub new_from_path {
		1819	my (undef, $path, $base) = @_;
		1820
		1821	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1822
		1823	$path = normalise $path, $base;
		1824
		1825	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1826	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1827	my $self = bless cf::map::new, $pkg;
		1828	$self->{path} = $path; $self->path ($path);
		1829	$self->init; # pass $1 etc.
		1830	return $self;
		1831	}
		1832	}
		1833
		1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1835	()
		1836	}
		1837
		1838	sub init {
		1839	my ($self) = @_;
		1840
		1841	$self
		1842	}
		1843
		1844	sub as_string {
		1845	my ($self) = @_;
		1846
		1847	"$self->{path}"
		1848	}
		1849
		1850	# the displayed name, this is a one way mapping
		1851	sub visible_name {
		1852	&as_string
		1853	}
		1854
		1855	# the original (read-only) location
		1856	sub load_path {
		1857	my ($self) = @_;
		1858
		1859	"$MAPDIR/$self->{path}.map"
		1860	}
		1861
		1862	# the temporary/swap location
		1863	sub save_path {
		1864	my ($self) = @_;
		1865
		1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1867	"$TMPDIR/$path.map"
		1868	}
		1869
		1870	# the unique path, undef == no special unique path
		1871	sub uniq_path {
		1872	my ($self) = @_;
		1873
		1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1875	"$UNIQUEDIR/$path"
1071	}	1876	}
1072		1877
1073	# and all this just because we cannot iterate over	1878	# and all this just because we cannot iterate over
1074	# all maps in C++...	1879	# all maps in C++...
1075	sub change_all_map_light {	1880	sub change_all_map_light {
1076	my ($change) = @_;	1881	my ($change) = @_;
1077		1882
1078	$_->change_map_light ($change) for values %cf::MAP;	1883	$_->change_map_light ($change)
		1884	for grep $_->outdoor, values %cf::MAP;
1079	}	1885	}
1080		1886
		1887	sub decay_objects {
		1888	my ($self) = @_;
		1889
		1890	return if $self->{deny_reset};
		1891
		1892	$self->do_decay_objects;
		1893	}
		1894
		1895	sub unlink_save {
		1896	my ($self) = @_;
		1897
		1898	utf8::encode (my $save = $self->save_path);
		1899	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1900	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1901	}
		1902
1081	sub try_load_header($) {	1903	sub load_header_from($) {
1082	my ($path) = @_;	1904	my ($self, $path) = @_;
1083		1905
1084	utf8::encode $path;	1906	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1907	my $f = new_from_file cf::object::thawer $path
1086	or return;	1908	or return;
1087		1909
1088	my $map = cf::map::new	1910	$self->_load_header ($f)
1089	or return;	1911	or return;
1090		1912
1091	$map->load_header ($path)	1913	local $MAP_LOADING{$self->{path}} = $self;
		1914	$f->resolve_delayed_derefs;
		1915
		1916	$self->{load_path} = $path;
		1917
		1918	1
		1919	}
		1920
		1921	sub load_header_orig {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->load_path)
		1925	}
		1926
		1927	sub load_header_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->load_header_from ($self->save_path)
		1931	}
		1932
		1933	sub prepare_temp {
		1934	my ($self) = @_;
		1935
		1936	$self->last_access ((delete $self->{last_access})
		1937	|| $cf::RUNTIME); #d#
		1938	# safety
		1939	$self->{instantiate_time} = $cf::RUNTIME
		1940	if $self->{instantiate_time} > $cf::RUNTIME;
		1941	}
		1942
		1943	sub prepare_orig {
		1944	my ($self) = @_;
		1945
		1946	$self->{load_original} = 1;
		1947	$self->{instantiate_time} = $cf::RUNTIME;
		1948	$self->last_access ($cf::RUNTIME);
		1949	$self->instantiate;
		1950	}
		1951
		1952	sub load_header {
		1953	my ($self) = @_;
		1954
		1955	if ($self->load_header_temp) {
		1956	$self->prepare_temp;
		1957	} else {
		1958	$self->load_header_orig
1092	or return;	1959	or return;
		1960	$self->prepare_orig;
		1961	}
1093		1962
1094	$map->{load_path} = $path;	1963	$self->{deny_reset} = 1
1095	use Data::Dumper; warn Dumper $map;#d#	1964	if $self->no_reset;
1096		1965
1097	$map	1966	$self->default_region (cf::region::find_by_path $self->{path})
1098	}	1967	unless $self->default_region;
1099		1968
		1969	1
		1970	}
		1971
		1972	sub find;
1100	sub find_map {	1973	sub find {
1101	my ($path, $origin) = @_;	1974	my ($path, $origin) = @_;
1102		1975
1103	#warn "find_map<$path,$origin>\n";#d#	1976	$path = normalise $path, $origin && $origin->path;
1104		1977
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1978	cf::lock_wait "map_data:$path";#d#remove
1106	my $key = $path->as_string;	1979	cf::lock_wait "map_find:$path";
1107		1980
1108	$cf::MAP{$key} || do {	1981	$cf::MAP{$path} || do {
1109	# do it the slow way	1982	my $guard1 = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1983	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1111		1984
1112	if ($map) {	1985	my $map = new_from_path cf::map $path
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1986	or return;
1124		1987
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1988	$map->{last_save} = $cf::RUNTIME;
1136		1989
1137	$map->reset if $map->should_reset;	1990	$map->load_header
		1991	or return;
1138		1992
		1993	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1994	# doing this can freeze the server in a sync job, obviously
		1995	#$cf::WAIT_FOR_TICK->wait;
		1996	undef $guard1;
		1997	undef $guard2;
		1998	$map->reset;
		1999	return find $path;
		2000	}
		2001
1139	$cf::MAP{$key} = $map	2002	$cf::MAP{$path} = $map
1140	}	2003	}
1141	}	2004	}
		2005
		2006	sub pre_load { }
		2007	sub post_load { }
1142		2008
1143	sub load {	2009	sub load {
1144	my ($self) = @_;	2010	my ($self) = @_;
1145		2011
1146	return if $self->in_memory != cf::MAP_SWAPPED;	2012	local $self->{deny_reset} = 1; # loading can take a long time
1147
1148	$self->in_memory (cf::MAP_LOADING);
1149		2013
1150	my $path = $self->{path};	2014	my $path = $self->{path};
1151		2015
		2016	{
		2017	my $guard = cf::lock_acquire "map_data:$path";
		2018
		2019	return unless $self->valid;
		2020	return unless $self->in_memory == cf::MAP_SWAPPED;
		2021
		2022	$self->in_memory (cf::MAP_LOADING);
		2023
1152	$self->alloc;	2024	$self->alloc;
1153	$self->load_objects ($self->{load_path}, 1)	2025
		2026	$self->pre_load;
		2027	cf::cede_to_tick;
		2028
		2029	my $f = new_from_file cf::object::thawer $self->{load_path};
		2030	$f->skip_block;
		2031	$self->_load_objects ($f)
1154	or return;	2032	or return;
1155		2033
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	2034	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		2035	if delete $self->{load_original};
1157		2036
1158	if (my $uniq = $path->uniq_path) {	2037	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	2038	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	2039	unless (aio_stat $uniq) {
		2040	if (my $f = new_from_file cf::object::thawer $uniq) {
1161	$self->clear_unique_items;	2041	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	2042	$self->_load_objects ($f);
		2043	$f->resolve_delayed_derefs;
		2044	}
1163	}	2045	}
1164	}	2046	}
1165		2047
		2048	$f->resolve_delayed_derefs;
		2049
		2050	cf::cede_to_tick;
1166	# now do the right thing for maps	2051	# now do the right thing for maps
1167	$self->link_multipart_objects;	2052	$self->link_multipart_objects;
1168
1169	if ($self->{path}->is_style_map) {
1170	$self->{deny_save} = 1;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;
1176	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	2053	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	2054	unless $self->difficulty;
		2055	cf::cede_to_tick;
		2056
		2057	unless ($self->{deny_activate}) {
		2058	$self->decay_objects;
		2059	$self->fix_auto_apply;
		2060	$self->update_buttons;
		2061	cf::cede_to_tick;
		2062	$self->set_darkness_map;
		2063	cf::cede_to_tick;
1179	$self->activate;	2064	$self->activate;
1180	}	2065	}
1181		2066
		2067	$self->{last_save} = $cf::RUNTIME;
		2068	$self->last_access ($cf::RUNTIME);
		2069
1182	$self->in_memory (cf::MAP_IN_MEMORY);	2070	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	2071	}
1184		2072
1185	sub load_map_sync {	2073	$self->post_load;
		2074	}
		2075
		2076	sub customise_for {
		2077	my ($self, $ob) = @_;
		2078
		2079	return find "~" . $ob->name . "/" . $self->{path}
		2080	if $self->per_player;
		2081
		2082	# return find "?party/" . $ob->name . "/" . $self->{path}
		2083	# if $self->per_party;
		2084
		2085	$self
		2086	}
		2087
		2088	# find and load all maps in the 3x3 area around a map
		2089	sub load_neighbours {
		2090	my ($map) = @_;
		2091
		2092	my @neigh; # diagonal neighbours
		2093
		2094	for (0 .. 3) {
		2095	my $neigh = $map->tile_path ($_)
		2096	or next;
		2097	$neigh = find $neigh, $map
		2098	or next;
		2099	$neigh->load;
		2100
		2101	push @neigh,
		2102	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2103	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2104	}
		2105
		2106	for (grep defined $_->[0], @neigh) {
		2107	my ($path, $origin) = @$_;
		2108	my $neigh = find $path, $origin
		2109	or next;
		2110	$neigh->load;
		2111	}
		2112	}
		2113
		2114	sub find_sync {
1186	my ($path, $origin) = @_;	2115	my ($path, $origin) = @_;
1187		2116
1188	#warn "load_map_sync<$path, $origin>\n";#d#	2117	cf::sync_job { find $path, $origin }
		2118	}
1189		2119
1190	cf::sync_job {	2120	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	2121	my ($map) = @_;
1192	or return;	2122
1193	$map->load;	2123	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1194	$map	2124	if $Coro::current == $Coro::main;
		2125
		2126	cf::sync_job { $map->load };
		2127	}
		2128
		2129	our %MAP_PREFETCH;
		2130	our $MAP_PREFETCHER = undef;
		2131
		2132	sub find_async {
		2133	my ($path, $origin, $load) = @_;
		2134
		2135	$path = normalise $path, $origin && $origin->{path};
		2136
		2137	if (my $map = $cf::MAP{$path}) {
		2138	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2139	}
		2140
		2141	$MAP_PREFETCH{$path} |= $load;
		2142
		2143	$MAP_PREFETCHER ||= cf::async {
		2144	$Coro::current->{desc} = "map prefetcher";
		2145
		2146	while (%MAP_PREFETCH) {
		2147	while (my ($k, $v) = each %MAP_PREFETCH) {
		2148	if (my $map = find $k) {
		2149	$map->load if $v;
		2150	}
		2151
		2152	delete $MAP_PREFETCH{$k};
		2153	}
		2154	}
		2155	undef $MAP_PREFETCHER;
1195	}	2156	};
		2157	$MAP_PREFETCHER->prio (6);
		2158
		2159	()
1196	}	2160	}
1197		2161
1198	sub save {	2162	sub save {
1199	my ($self) = @_;	2163	my ($self) = @_;
1200		2164
1201	my $save = $self->{path}->save_path; utf8::encode $save;	2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		2166
1204	$self->{last_save} = $cf::RUNTIME;	2167	$self->{last_save} = $cf::RUNTIME;
1205		2168
1206	return unless $self->dirty;	2169	return unless $self->dirty;
1207		2170
		2171	my $save = $self->save_path; utf8::encode $save;
		2172	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2173
1208	$self->{load_path} = $save;	2174	$self->{load_path} = $save;
1209		2175
1210	return if $self->{deny_save};	2176	return if $self->{deny_save};
1211		2177
1212	warn "saving map ", $self->path;	2178	local $self->{last_access} = $self->last_access;#d#
		2179
		2180	cf::async {
		2181	$Coro::current->{desc} = "map player save";
		2182	$_->contr->save for $self->players;
		2183	};
1213		2184
1214	if ($uniq) {	2185	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2186	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	2187	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	2188	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2189	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	2190	}
1220	}	2191	}
1221		2192
1222	sub swap_out {	2193	sub swap_out {
1223	my ($self) = @_;	2194	my ($self) = @_;
		2195
		2196	# save first because save cedes
		2197	$self->save;
		2198
		2199	my $lock = cf::lock_acquire "map_data:$self->{path}";
1224		2200
1225	return if $self->players;	2201	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	2202	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	2203	return if $self->{deny_save};
1228		2204
		2205	$self->in_memory (cf::MAP_SWAPPED);
		2206
1229	$self->save;	2207	$self->deactivate;
		2208	$_->clear_links_to ($self) for values %cf::MAP;
1230	$self->clear;	2209	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	2210	}
		2211
		2212	sub reset_at {
		2213	my ($self) = @_;
		2214
		2215	# TODO: safety, remove and allow resettable per-player maps
		2216	return 1e99 if $self->{deny_reset};
		2217
		2218	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2219	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2220
		2221	$time + $to
1232	}	2222	}
1233		2223
1234	sub should_reset {	2224	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	2225	my ($self) = @_;
1251		2226
1252	utf8::encode (my $save = $self->{path}->save_path);	2227	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	2228	}
1256		2229
1257	sub reset {	2230	sub reset {
1258	my ($self) = @_;	2231	my ($self) = @_;
1259		2232
		2233	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2234
1260	return if $self->players;	2235	return if $self->players;
1261	return if $self->{path}{user_rel};#d#
1262		2236
1263	warn "resetting map ", $self->path;#d#	2237	warn "resetting map ", $self->path;
		2238
		2239	$self->in_memory (cf::MAP_SWAPPED);
		2240
		2241	# need to save uniques path
		2242	unless ($self->{deny_save}) {
		2243	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2244
		2245	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2246	if $uniq;
		2247	}
1264		2248
1265	delete $cf::MAP{$self->path};	2249	delete $cf::MAP{$self->path};
1266		2250
		2251	$self->deactivate;
1267	$_->clear_links_to ($self) for values %cf::MAP;	2252	$_->clear_links_to ($self) for values %cf::MAP;
		2253	$self->clear;
1268		2254
1269	$self->unlink_save;	2255	$self->unlink_save;
1270	$self->destroy;	2256	$self->destroy;
1271	}	2257	}
1272		2258
1273	sub customise_for {	2259	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		2260
1276	if ($map->per_player) {	2261	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2262	my ($self) = @_;
		2263
1278	}	2264	{
		2265	my $lock = cf::lock_acquire "map_data:$self->{path}";
1279		2266
1280	$map	2267	delete $cf::MAP{$self->path};
1281	}
1282		2268
1283	sub emergency_save {	2269	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		2270
1286	warn "enter emergency map save\n";	2271	bless $self, "cf::map";
		2272	delete $self->{deny_reset};
		2273	$self->{deny_save} = 1;
		2274	$self->reset_timeout (1);
		2275	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		2276
1288	cf::sync_job {	2277	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";
1290	$_->save for values %cf::MAP;
1291	};	2278	}
1292		2279
1293	warn "end emergency map save\n";	2280	$self->reset; # polite request, might not happen
		2281	}
		2282
		2283	=item $maps = cf::map::tmp_maps
		2284
		2285	Returns an arrayref with all map paths of currently instantiated and saved
		2286	maps. May block.
		2287
		2288	=cut
		2289
		2290	sub tmp_maps() {
		2291	[
		2292	map {
		2293	utf8::decode $_;
		2294	/\.map$/
		2295	? normalise $_
		2296	: ()
		2297	} @{ aio_readdir $TMPDIR or [] }
		2298	]
		2299	}
		2300
		2301	=item $maps = cf::map::random_maps
		2302
		2303	Returns an arrayref with all map paths of currently instantiated and saved
		2304	random maps. May block.
		2305
		2306	=cut
		2307
		2308	sub random_maps() {
		2309	[
		2310	map {
		2311	utf8::decode $_;
		2312	/\.map$/
		2313	? normalise "?random/$_"
		2314	: ()
		2315	} @{ aio_readdir $RANDOMDIR or [] }
		2316	]
		2317	}
		2318
		2319	=item cf::map::unique_maps
		2320
		2321	Returns an arrayref of paths of all shared maps that have
		2322	instantiated unique items. May block.
		2323
		2324	=cut
		2325
		2326	sub unique_maps() {
		2327	[
		2328	map {
		2329	utf8::decode $_;
		2330	/\.map$/
		2331	? normalise $_
		2332	: ()
		2333	} @{ aio_readdir $UNIQUEDIR or [] }
		2334	]
1294	}	2335	}
1295		2336
1296	package cf;	2337	package cf;
1297		2338
1298	=back	2339	=back
1299		2340
		2341	=head3 cf::object
		2342
		2343	=cut
		2344
		2345	package cf::object;
		2346
		2347	=over 4
		2348
		2349	=item $ob->inv_recursive
		2350
		2351	Returns the inventory of the object _and_ their inventories, recursively.
		2352
		2353	=cut
		2354
		2355	sub inv_recursive_;
		2356	sub inv_recursive_ {
		2357	map { $_, inv_recursive_ $_->inv } @_
		2358	}
		2359
		2360	sub inv_recursive {
		2361	inv_recursive_ inv $_[0]
		2362	}
		2363
		2364	=item $ref = $ob->ref
		2365
		2366	creates and returns a persistent reference to an objetc that can be stored as a string.
		2367
		2368	=item $ob = cf::object::deref ($refstring)
		2369
		2370	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2371	even if the object actually exists. May block.
		2372
		2373	=cut
		2374
		2375	sub deref {
		2376	my ($ref) = @_;
		2377
		2378	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2379	my ($uuid, $name) = ($1, $2);
		2380	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2381	or return;
		2382	$pl->ob->uuid eq $uuid
		2383	or return;
		2384
		2385	$pl->ob
		2386	} else {
		2387	warn "$ref: cannot resolve object reference\n";
		2388	undef
		2389	}
		2390	}
		2391
		2392	package cf;
		2393
		2394	=back
1300		2395
1301	=head3 cf::object::player	2396	=head3 cf::object::player
1302		2397
1303	=over 4	2398	=over 4
1304		2399
…		…
1318		2413
1319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2414	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1320		2415
1321	if ($self->{record_replies}) {	2416	if ($self->{record_replies}) {
1322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2417	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2418
1323	} else {	2419	} else {
		2420	my $pl = $self->contr;
		2421
		2422	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2423	my $dialog = $pl->{npc_dialog};
		2424	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2425
		2426	} else {
1324	$msg = $npc->name . " says: $msg" if $npc;	2427	$msg = $npc->name . " says: $msg" if $npc;
1325	$self->message ($msg, $flags);	2428	$self->message ($msg, $flags);
		2429	}
1326	}	2430	}
		2431	}
		2432
		2433	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2434
		2435	=cut
		2436
		2437	sub cf::object::send_msg {
		2438	my $pl = shift->contr
		2439	or return;
		2440	$pl->send_msg (@_);
1327	}	2441	}
1328		2442
1329	=item $player_object->may ("access")	2443	=item $player_object->may ("access")
1330		2444
1331	Returns wether the given player is authorized to access resource "access"	2445	Returns wether the given player is authorized to access resource "access"
…		…
1340	(ref $cf::CFG{"may_$access"}	2454	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2455	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	2456	: $cf::CFG{"may_$access"})
1343	}	2457	}
1344		2458
		2459	=item $player_object->enter_link
		2460
		2461	Freezes the player and moves him/her to a special map (C<{link}>).
		2462
		2463	The player should be reasonably safe there for short amounts of time. You
		2464	I<MUST> call C<leave_link> as soon as possible, though.
		2465
		2466	Will never block.
		2467
		2468	=item $player_object->leave_link ($map, $x, $y)
		2469
		2470	Moves the player out of the special C<{link}> map onto the specified
		2471	map. If the map is not valid (or omitted), the player will be moved back
		2472	to the location he/she was before the call to C<enter_link>, or, if that
		2473	fails, to the emergency map position.
		2474
		2475	Might block.
		2476
		2477	=cut
		2478
		2479	sub link_map {
		2480	unless ($LINK_MAP) {
		2481	$LINK_MAP = cf::map::find "{link}"
		2482	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2483	$LINK_MAP->load;
		2484	}
		2485
		2486	$LINK_MAP
		2487	}
		2488
1345	sub cf::object::player::enter_link {	2489	sub cf::object::player::enter_link {
1346	my ($self) = @_;	2490	my ($self) = @_;
1347		2491
1348	return if $self->map == $LINK_MAP;
1349
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;
1352
1353	$self->enter_map ($LINK_MAP, 20, 20);
1354	$self->deactivate_recursive;	2492	$self->deactivate_recursive;
		2493
		2494	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2495
		2496	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2497	if $self->map && $self->map->{path} ne "{link}";
		2498
		2499	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1355	}	2500	}
1356		2501
1357	sub cf::object::player::leave_link {	2502	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	2503	my ($self, $map, $x, $y) = @_;
1359		2504
		2505	return unless $self->contr->active;
		2506
1360	my $link_pos = delete $self->{_link_pos};	2507	my $link_pos = delete $self->{_link_pos};
1361		2508
1362	unless ($map) {	2509	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	2510	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	2511	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	2512	$map = cf::map::find $map;
1368		2513
1369	unless ($map) {	2514	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	2515	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	2516	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	2517	or die "FATAL: cannot load emergency map\n";
1373	}	2518	}
1374	}	2519	}
1375		2520
1376	($x, $y) = (-1, -1)	2521	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	2524	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	2525	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	2526	if $x <=0 && $y <= 0;
1382		2527
1383	$map->load;	2528	$map->load;
		2529	$map->load_neighbours;
1384		2530
		2531	return unless $self->contr->active;
1385	$self->activate_recursive;	2532	$self->activate_recursive;
		2533
		2534	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	2535	$self->enter_map ($map, $x, $y);
1387	}	2536	}
1388		2537
1389	=item $player_object->goto_map ($map, $x, $y)	2538	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1390		2539
1391	=cut	2540	Moves the player to the given map-path and coordinates by first freezing
		2541	her, loading and preparing them map, calling the provided $check callback
		2542	that has to return the map if sucecssful, and then unfreezes the player on
		2543	the new (success) or old (failed) map position. In either case, $done will
		2544	be called at the end of this process.
1392		2545
		2546	=cut
		2547
		2548	our $GOTOGEN;
		2549
1393	sub cf::object::player::goto_map {	2550	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	2551	my ($self, $path, $x, $y, $check, $done) = @_;
		2552
		2553	# do generation counting so two concurrent goto's will be executed in-order
		2554	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1395		2555
1396	$self->enter_link;	2556	$self->enter_link;
1397		2557
1398	(Coro::async {	2558	(async {
1399	$path = new cf::path $path;	2559	$Coro::current->{desc} = "player::goto $path $x $y";
1400		2560
1401	my $map = cf::map::find_map $path->as_string;	2561	# *tag paths override both path and x|y
		2562	if ($path =~ /^\*(.*)$/) {
		2563	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2564	my $ob = $obs[rand @obs];
		2565
		2566	# see if we actually can go there
		2567	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2568	$ob = $obs[rand @obs];
		2569	} else {
		2570	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2571	}
		2572	# else put us there anyways for now #d#
		2573
		2574	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2575	} else {
		2576	($path, $x, $y) = (undef, undef, undef);
		2577	}
		2578	}
		2579
		2580	my $map = eval {
		2581	my $map = defined $path ? cf::map::find $path : undef;
		2582
		2583	if ($map) {
1402	$map = $map->customise_for ($self) if $map;	2584	$map = $map->customise_for ($self);
		2585	$map = $check->($map) if $check && $map;
		2586	} else {
		2587	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	}
1403		2589
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	2590	$map
		2591	};
1406		2592
		2593	if ($@) {
		2594	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	LOG llevError | logBacktrace, Carp::longmess $@;
		2596	}
		2597
		2598	if ($gen == $self->{_goto_generation}) {
		2599	delete $self->{_goto_generation};
1407	$self->leave_link ($map, $x, $y);	2600	$self->leave_link ($map, $x, $y);
		2601	}
		2602
		2603	$done->() if $done;
1408	})->prio (1);	2604	})->prio (1);
1409	}	2605	}
1410		2606
1411	=item $player_object->enter_exit ($exit_object)	2607	=item $player_object->enter_exit ($exit_object)
1412		2608
…		…
1414		2610
1415	sub parse_random_map_params {	2611	sub parse_random_map_params {
1416	my ($spec) = @_;	2612	my ($spec) = @_;
1417		2613
1418	my $rmp = { # defaults	2614	my $rmp = { # defaults
1419	xsize => 10,	2615	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	2616	ysize => (cf::rndm 15, 40),
		2617	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2618	#layout => string,
1421	};	2619	};
1422		2620
1423	for (split /\n/, $spec) {	2621	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	2622	my ($k, $v) = split /\s+/, $_, 2;
1425		2623
…		…
1429	$rmp	2627	$rmp
1430	}	2628	}
1431		2629
1432	sub prepare_random_map {	2630	sub prepare_random_map {
1433	my ($exit) = @_;	2631	my ($exit) = @_;
		2632
		2633	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		2634
1435	# all this does is basically replace the /! path by	2635	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	2636	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	2637	# that depends on the exit object
1438		2638
1439	my $rmp = parse_random_map_params $exit->msg;	2639	my $rmp = parse_random_map_params $exit->msg;
1440		2640
1441	if ($exit->map) {	2641	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	2642	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	2643	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	2644	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	2645	$rmp->{origin_y} = $exit->y;
1446	}	2646	}
1447		2647
1448	$rmp->{random_seed} ||= $exit->random_seed;	2648	$rmp->{random_seed} ||= $exit->random_seed;
1449		2649
1450	my $data = cf::to_json $rmp;	2650	my $data = cf::encode_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	2651	my $md5 = Digest::MD5::md5_hex $data;
		2652	my $meta = "$RANDOMDIR/$md5.meta";
1452		2653
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2654	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	2655	aio_write $fh, 0, (length $data), $data, 0;
		2656	undef $fh;
		2657	aio_rename "$meta~", $meta;
1455		2658
1456	$exit->slaying ("?random/$md5");	2659	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	2660	$exit->msg (undef);
1458	}	2661	}
1459	}	2662	}
…		…
1461	sub cf::object::player::enter_exit {	2664	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	2665	my ($self, $exit) = @_;
1463		2666
1464	return unless $self->type == cf::PLAYER;	2667	return unless $self->type == cf::PLAYER;
1465		2668
		2669	if ($exit->slaying eq "/!") {
		2670	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2671	# the problem is that $exit might not survive long enough
		2672	# so it needs to be done right now, right here
		2673	cf::sync_job { prepare_random_map $exit };
		2674	}
		2675
		2676	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2677	my $hp = $exit->stats->hp;
		2678	my $sp = $exit->stats->sp;
		2679
1466	$self->enter_link;	2680	$self->enter_link;
1467		2681
		2682	# if exit is damned, update players death & WoR home-position
		2683	$self->contr->savebed ($slaying, $hp, $sp)
		2684	if $exit->flag (FLAG_DAMNED);
		2685
1468	(Coro::async {	2686	(async {
		2687	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2688
		2689	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	2690	unless (eval {
1470		2691	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		2692
1477	1;	2693	1;
1478	}) {	2694	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	2695	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	2696	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	2697	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2698	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2699
1484	warn "ERROR in enter_exit: $@";	2700	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	2701	$self->leave_link;
1486	}	2702	}
1487	})->prio (1);	2703	})->prio (1);
…		…
1500		2716
1501	sub cf::client::send_drawinfo {	2717	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2718	my ($self, $text, $flags) = @_;
1503		2719
1504	utf8::encode $text;	2720	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2721	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2722	}
1507		2723
		2724	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2725
		2726	Send a drawinfo or msg packet to the client, formatting the msg for the
		2727	client if neccessary. C<$type> should be a string identifying the type of
		2728	the message, with C<log> being the default. If C<$color> is negative, suppress
		2729	the message unless the client supports the msg packet.
		2730
		2731	=cut
		2732
		2733	# non-persistent channels (usually the info channel)
		2734	our %CHANNEL = (
		2735	"c/identify" => {
		2736	id => "infobox",
		2737	title => "Identify",
		2738	reply => undef,
		2739	tooltip => "Items recently identified",
		2740	},
		2741	"c/examine" => {
		2742	id => "infobox",
		2743	title => "Examine",
		2744	reply => undef,
		2745	tooltip => "Signs and other items you examined",
		2746	},
		2747	"c/book" => {
		2748	id => "infobox",
		2749	title => "Book",
		2750	reply => undef,
		2751	tooltip => "The contents of a note or book",
		2752	},
		2753	"c/lookat" => {
		2754	id => "infobox",
		2755	title => "Look",
		2756	reply => undef,
		2757	tooltip => "What you saw there",
		2758	},
		2759	"c/who" => {
		2760	id => "infobox",
		2761	title => "Players",
		2762	reply => undef,
		2763	tooltip => "Shows players who are currently online",
		2764	},
		2765	"c/body" => {
		2766	id => "infobox",
		2767	title => "Body Parts",
		2768	reply => undef,
		2769	tooltip => "Shows which body parts you posess and are available",
		2770	},
		2771	"c/uptime" => {
		2772	id => "infobox",
		2773	title => "Uptime",
		2774	reply => undef,
		2775	tooltip => "How long the server has been running since last restart",
		2776	},
		2777	"c/mapinfo" => {
		2778	id => "infobox",
		2779	title => "Map Info",
		2780	reply => undef,
		2781	tooltip => "Information related to the maps",
		2782	},
		2783	);
		2784
		2785	sub cf::client::send_msg {
		2786	my ($self, $channel, $msg, $color, @extra) = @_;
		2787
		2788	$msg = $self->pl->expand_cfpod ($msg);
		2789
		2790	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2791
		2792	# check predefined channels, for the benefit of C
		2793	if ($CHANNEL{$channel}) {
		2794	$channel = $CHANNEL{$channel};
		2795
		2796	$self->ext_msg (channel_info => $channel)
		2797	if $self->can_msg;
		2798
		2799	$channel = $channel->{id};
		2800
		2801	} elsif (ref $channel) {
		2802	# send meta info to client, if not yet sent
		2803	unless (exists $self->{channel}{$channel->{id}}) {
		2804	$self->{channel}{$channel->{id}} = $channel;
		2805	$self->ext_msg (channel_info => $channel)
		2806	if $self->can_msg;
		2807	}
		2808
		2809	$channel = $channel->{id};
		2810	}
		2811
		2812	return unless @extra || length $msg;
		2813
		2814	if ($self->can_msg) {
		2815	# default colour, mask it out
		2816	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2817	if $color & cf::NDI_DEF;
		2818
		2819	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2820	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2821	} else {
		2822	if ($color >= 0) {
		2823	# replace some tags by gcfclient-compatible ones
		2824	for ($msg) {
		2825	1 while
		2826	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2827	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2828	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2829	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2830	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2831	}
		2832
		2833	$color &= cf::NDI_COLOR_MASK;
		2834
		2835	utf8::encode $msg;
		2836
		2837	if (0 && $msg =~ /\[/) {
		2838	# COMMAND/INFO
		2839	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2840	} else {
		2841	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2842	$self->send_packet ("drawinfo $color $msg")
		2843	}
		2844	}
		2845	}
		2846	}
		2847
		2848	=item $client->ext_msg ($type, @msg)
		2849
		2850	Sends an ext event to the client.
		2851
		2852	=cut
		2853
		2854	sub cf::client::ext_msg($$@) {
		2855	my ($self, $type, @msg) = @_;
		2856
		2857	if ($self->extcmd == 2) {
		2858	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2859	} elsif ($self->extcmd == 1) { # TODO: remove
		2860	push @msg, msgtype => "event_$type";
		2861	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2862	}
		2863	}
		2864
		2865	=item $client->ext_reply ($msgid, @msg)
		2866
		2867	Sends an ext reply to the client.
		2868
		2869	=cut
		2870
		2871	sub cf::client::ext_reply($$@) {
		2872	my ($self, $id, @msg) = @_;
		2873
		2874	if ($self->extcmd == 2) {
		2875	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2876	} elsif ($self->extcmd == 1) {
		2877	#TODO: version 1, remove
		2878	unshift @msg, msgtype => "reply", msgid => $id;
		2879	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2880	}
		2881	}
1508		2882
1509	=item $success = $client->query ($flags, "text", \&cb)	2883	=item $success = $client->query ($flags, "text", \&cb)
1510		2884
1511	Queues a query to the client, calling the given callback with	2885	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2886	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1513	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2887	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1514		2888
1515	Queries can fail, so check the return code. Or don't, as queries will become	2889	Queries can fail, so check the return code. Or don't, as queries will
1516	reliable at some point in the future.	2890	become reliable at some point in the future.
1517		2891
1518	=cut	2892	=cut
1519		2893
1520	sub cf::client::query {	2894	sub cf::client::query {
1521	my ($self, $flags, $text, $cb) = @_;	2895	my ($self, $flags, $text, $cb) = @_;
…		…
1529	utf8::encode $text;	2903	utf8::encode $text;
1530	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2904	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1531		2905
1532	$self->send_packet ($self->{query_queue}[0][0])	2906	$self->send_packet ($self->{query_queue}[0][0])
1533	if @{ $self->{query_queue} } == 1;	2907	if @{ $self->{query_queue} } == 1;
		2908
		2909	1
1534	}	2910	}
1535		2911
1536	cf::client->attach (	2912	cf::client->attach (
		2913	on_connect => sub {
		2914	my ($ns) = @_;
		2915
		2916	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2917	},
1537	on_reply => sub {	2918	on_reply => sub {
1538	my ($ns, $msg) = @_;	2919	my ($ns, $msg) = @_;
1539		2920
1540	# this weird shuffling is so that direct followup queries	2921	# this weird shuffling is so that direct followup queries
1541	# get handled first	2922	# get handled first
1542	my $queue = delete $ns->{query_queue};	2923	my $queue = delete $ns->{query_queue}
		2924	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2925
1544	(shift @$queue)->[1]->($msg);	2926	(shift @$queue)->[1]->($msg);
		2927	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2928
1546	push @{ $ns->{query_queue} }, @$queue;	2929	push @{ $ns->{query_queue} }, @$queue;
1547		2930
1548	if (@{ $ns->{query_queue} } == @$queue) {	2931	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2932	if (@$queue) {
…		…
1551	} else {	2934	} else {
1552	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1553	}	2936	}
1554	}	2937	}
1555	},	2938	},
		2939	on_exticmd => sub {
		2940	my ($ns, $buf) = @_;
		2941
		2942	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2943
		2944	if (ref $msg) {
		2945	my ($type, $reply, @payload) =
		2946	"ARRAY" eq ref $msg
		2947	? @$msg
		2948	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2949
		2950	my @reply;
		2951
		2952	if (my $cb = $EXTICMD{$type}) {
		2953	@reply = $cb->($ns, @payload);
		2954	}
		2955
		2956	$ns->ext_reply ($reply, @reply)
		2957	if $reply;
		2958
		2959	} else {
		2960	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2961	}
		2962
		2963	cf::override;
		2964	},
1556	);	2965	);
1557		2966
1558	=item $client->coro (\&cb)	2967	=item $client->async (\&cb)
1559		2968
1560	Create a new coroutine, running the specified callback. The coroutine will	2969	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2970	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2971	or loss of connection).
1563		2972
1564	=cut	2973	=cut
1565		2974
1566	sub cf::client::coro {	2975	sub cf::client::async {
1567	my ($self, $cb) = @_;	2976	my ($self, $cb) = @_;
1568		2977
1569	my $coro; $coro = async {	2978	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2979
1576	$coro->on_destroy (sub {	2980	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2981	delete $self->{_coro}{$coro+0};
1578	});	2982	});
1579		2983
…		…
1606	our $safe = new Safe "safe";	3010	our $safe = new Safe "safe";
1607	our $safe_hole = new Safe::Hole;	3011	our $safe_hole = new Safe::Hole;
1608		3012
1609	$SIG{FPE} = 'IGNORE';	3013	$SIG{FPE} = 'IGNORE';
1610		3014
1611	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3015	$safe->permit_only (Opcode::opset qw(
		3016	:base_core :base_mem :base_orig :base_math
		3017	grepstart grepwhile mapstart mapwhile
		3018	sort time
		3019	));
1612		3020
1613	# here we export the classes and methods available to script code	3021	# here we export the classes and methods available to script code
1614		3022
1615	=pod	3023	=pod
1616		3024
1617	The following fucntions and emthods are available within a safe environment:	3025	The following functions and methods are available within a safe environment:
1618		3026
1619	cf::object contr pay_amount pay_player map	3027	cf::object
		3028	contr pay_amount pay_player map x y force_find force_add destroy
		3029	insert remove name archname title slaying race decrease_ob_nr
		3030
1620	cf::object::player player	3031	cf::object::player
1621	cf::player peaceful	3032	player
1622	cf::map trigger	3033
		3034	cf::player
		3035	peaceful
		3036
		3037	cf::map
		3038	trigger
1623		3039
1624	=cut	3040	=cut
1625		3041
1626	for (	3042	for (
1627	["cf::object" => qw(contr pay_amount pay_player map)],	3043	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3044	insert remove inv name archname title slaying race
		3045	decrease_ob_nr destroy)],
1628	["cf::object::player" => qw(player)],	3046	["cf::object::player" => qw(player)],
1629	["cf::player" => qw(peaceful)],	3047	["cf::player" => qw(peaceful)],
1630	["cf::map" => qw(trigger)],	3048	["cf::map" => qw(trigger)],
1631	) {	3049	) {
1632	no strict 'refs';	3050	no strict 'refs';
…		…
1703	=back	3121	=back
1704		3122
1705	=cut	3123	=cut
1706		3124
1707	#############################################################################	3125	#############################################################################
		3126	# the server's init and main functions
1708		3127
1709	=head2 EXTENSION DATABASE SUPPORT	3128	sub load_facedata($) {
		3129	my ($path) = @_;
1710		3130
1711	Crossfire maintains a very simple database for extension use. It can	3131	# HACK to clear player env face cache, we need some signal framework
1712	currently store anything that can be serialised using Storable, which	3132	# for this (global event?)
1713	excludes objects.	3133	%ext::player_env::MUSIC_FACE_CACHE = ();
1714		3134
1715	The parameter C<$family> should best start with the name of the extension	3135	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1716	using it, it should be unique.
1717		3136
1718	=over 4	3137	warn "loading facedata from $path\n";
1719		3138
1720	=item $hashref = cf::db_get $family	3139	my $facedata;
		3140	0 < aio_load $path, $facedata
		3141	or die "$path: $!";
1721		3142
1722	Return a hashref for use by the extension C<$family>, which can be	3143	$facedata = Coro::Storable::thaw $facedata;
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725		3144
1726	=item $value = cf::db_get $family => $key	3145	$facedata->{version} == 2
		3146	or cf::cleanup "$path: version mismatch, cannot proceed.";
1727		3147
1728	Returns a single value from the database	3148	# patch in the exptable
1729		3149	$facedata->{resource}{"res/exp_table"} = {
1730	=item cf::db_put $family => $hashref	3150	type => FT_RSRC,
1731		3151	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734
1735	=item cf::db_put $family => $key => $value
1736
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747
1748	=cut
1749
1750	our $DB;
1751
1752	{
1753	my $path = cf::localdir . "/database.pst";
1754
1755	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };
1758	}
1759
1760	my $pid;
1761
1762	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});	3152	};
		3153	cf::cede_to_tick;
1783		3154
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}	3155	{
		3156	my $faces = $facedata->{faceinfo};
1788		3157
1789	sub db_get($;$) {	3158	while (my ($face, $info) = each %$faces) {
1790	@_ >= 2	3159	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794		3160
1795	sub db_put($$;$) {	3161	cf::face::set_visibility $idx, $info->{visibility};
1796	if (@_ >= 3) {	3162	cf::face::set_magicmap $idx, $info->{magicmap};
1797	$DB->{$_[0]}{$_[1]} = $_[2];	3163	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1798	} else {	3164	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803		3165
1804	cf::global->attach (	3166	cf::cede_to_tick;
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	3167	}
1809	);
1810	}
1811		3168
1812	#############################################################################	3169	while (my ($face, $info) = each %$faces) {
1813	# the server's main()	3170	next unless $info->{smooth};
1814		3171
1815	sub cfg_load {	3172	my $idx = cf::face::find $face
		3173	or next;
		3174
		3175	if (my $smooth = cf::face::find $info->{smooth}) {
		3176	cf::face::set_smooth $idx, $smooth;
		3177	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3178	} else {
		3179	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3180	}
		3181
		3182	cf::cede_to_tick;
		3183	}
		3184	}
		3185
		3186	{
		3187	my $anims = $facedata->{animinfo};
		3188
		3189	while (my ($anim, $info) = each %$anims) {
		3190	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3191	cf::cede_to_tick;
		3192	}
		3193
		3194	cf::anim::invalidate_all; # d'oh
		3195	}
		3196
		3197	{
		3198	# TODO: for gcfclient pleasure, we should give resources
		3199	# that gcfclient doesn't grok a >10000 face index.
		3200	my $res = $facedata->{resource};
		3201
		3202	while (my ($name, $info) = each %$res) {
		3203	if (defined $info->{type}) {
		3204	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3205	my $data;
		3206
		3207	if ($info->{type} & 1) {
		3208	# prepend meta info
		3209
		3210	my $meta = $enc->encode ({
		3211	name => $name,
		3212	%{ $info->{meta} || {} },
		3213	});
		3214
		3215	$data = pack "(w/a*)*", $meta, $info->{data};
		3216	} else {
		3217	$data = $info->{data};
		3218	}
		3219
		3220	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3221	cf::face::set_type $idx, $info->{type};
		3222	} else {
		3223	$RESOURCE{$name} = $info;
		3224	}
		3225
		3226	cf::cede_to_tick;
		3227	}
		3228	}
		3229
		3230	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3231
		3232	1
		3233	}
		3234
		3235	cf::global->attach (on_resource_update => sub {
		3236	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3237	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3238
		3239	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3240	my $sound = $soundconf->{compat}[$_]
		3241	or next;
		3242
		3243	my $face = cf::face::find "sound/$sound->[1]";
		3244	cf::sound::set $sound->[0] => $face;
		3245	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3246	}
		3247
		3248	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3249	my $face = cf::face::find "sound/$v";
		3250	cf::sound::set $k => $face;
		3251	}
		3252	}
		3253	});
		3254
		3255	register_exticmd fx_want => sub {
		3256	my ($ns, $want) = @_;
		3257
		3258	while (my ($k, $v) = each %$want) {
		3259	$ns->fx_want ($k, $v);
		3260	}
		3261	};
		3262
		3263	sub reload_regions {
		3264	# HACK to clear player env face cache, we need some signal framework
		3265	# for this (global event?)
		3266	%ext::player_env::MUSIC_FACE_CACHE = ();
		3267
		3268	load_resource_file "$MAPDIR/regions"
		3269	or die "unable to load regions file\n";
		3270
		3271	for (cf::region::list) {
		3272	$_->{match} = qr/$_->{match}/
		3273	if exists $_->{match};
		3274	}
		3275	}
		3276
		3277	sub reload_facedata {
		3278	load_facedata "$DATADIR/facedata"
		3279	or die "unable to load facedata\n";
		3280	}
		3281
		3282	sub reload_archetypes {
		3283	load_resource_file "$DATADIR/archetypes"
		3284	or die "unable to load archetypes\n";
		3285	#d# NEED to laod twice to resolve forward references
		3286	# this really needs to be done in an extra post-pass
		3287	# (which needs to be synchronous, so solve it differently)
		3288	load_resource_file "$DATADIR/archetypes"
		3289	or die "unable to load archetypes\n";
		3290	}
		3291
		3292	sub reload_treasures {
		3293	load_resource_file "$DATADIR/treasures"
		3294	or die "unable to load treasurelists\n";
		3295	}
		3296
		3297	sub reload_resources {
		3298	warn "reloading resource files...\n";
		3299
		3300	reload_regions;
		3301	reload_facedata;
		3302	#reload_archetypes;#d#
		3303	reload_archetypes;
		3304	reload_treasures;
		3305
		3306	warn "finished reloading resource files\n";
		3307	}
		3308
		3309	sub init {
		3310	reload_resources;
		3311	}
		3312
		3313	sub reload_config {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	3314	open my $fh, "<:utf8", "$CONFDIR/config"
1817	or return;	3315	or return;
1818		3316
1819	local $/;	3317	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	3318	*CFG = YAML::Syck::Load <$fh>;
		3319
		3320	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3321
		3322	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3323	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3324
		3325	if (exists $CFG{mlockall}) {
		3326	eval {
		3327	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3328	and die "WARNING: m(un)lockall failed: $!\n";
		3329	};
		3330	warn $@ if $@;
		3331	}
1821	}	3332	}
1822		3333
1823	sub main {	3334	sub main {
1824	# we must not ever block the main coroutine	3335	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	3336	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3337	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	3338	(async {
1828	Event::one_event;	3339	$Coro::current->{desc} = "IDLE BUG HANDLER";
1829	})->();	3340	EV::loop EV::LOOP_ONESHOT;
		3341	})->prio (Coro::PRIO_MAX);
1830	};	3342	};
1831		3343
1832	cfg_load;	3344	reload_config;
1833	db_load;	3345	db_init;
1834	load_extensions;	3346	load_extensions;
		3347
		3348	$TICK_WATCHER->start;
		3349	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
1835	Event::loop;	3350	EV::loop;
1836	}	3351	}
1837		3352
1838	#############################################################################	3353	#############################################################################
1839	# initialisation	3354	# initialisation and cleanup
1840		3355
		3356	# install some emergency cleanup handlers
		3357	BEGIN {
		3358	our %SIGWATCHER = ();
		3359	for my $signal (qw(INT HUP TERM)) {
		3360	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3361	cf::cleanup "SIG$signal";
		3362	};
		3363	}
		3364	}
		3365
		3366	sub write_runtime {
		3367	my $runtime = "$LOCALDIR/runtime";
		3368
		3369	# first touch the runtime file to show we are still running:
		3370	# the fsync below can take a very very long time.
		3371
		3372	IO::AIO::aio_utime $runtime, undef, undef;
		3373
		3374	my $guard = cf::lock_acquire "write_runtime";
		3375
		3376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3377	or return;
		3378
		3379	my $value = $cf::RUNTIME + 90 + 10;
		3380	# 10 is the runtime save interval, for a monotonic clock
		3381	# 60 allows for the watchdog to kill the server.
		3382
		3383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3384	and return;
		3385
		3386	# always fsync - this file is important
		3387	aio_fsync $fh
		3388	and return;
		3389
		3390	# touch it again to show we are up-to-date
		3391	aio_utime $fh, undef, undef;
		3392
		3393	close $fh
		3394	or return;
		3395
		3396	aio_rename "$runtime~", $runtime
		3397	and return;
		3398
		3399	warn "runtime file written.\n";
		3400
		3401	1
		3402	}
		3403
		3404	sub emergency_save() {
		3405	my $freeze_guard = cf::freeze_mainloop;
		3406
		3407	warn "enter emergency perl save\n";
		3408
		3409	cf::sync_job {
		3410	# use a peculiar iteration method to avoid tripping on perl
		3411	# refcount bugs in for. also avoids problems with players
		3412	# and maps saved/destroyed asynchronously.
		3413	warn "begin emergency player save\n";
		3414	for my $login (keys %cf::PLAYER) {
		3415	my $pl = $cf::PLAYER{$login} or next;
		3416	$pl->valid or next;
		3417	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3418	$pl->save;
		3419	}
		3420	warn "end emergency player save\n";
		3421
		3422	warn "begin emergency map save\n";
		3423	for my $path (keys %cf::MAP) {
		3424	my $map = $cf::MAP{$path} or next;
		3425	$map->valid or next;
		3426	$map->save;
		3427	}
		3428	warn "end emergency map save\n";
		3429
		3430	warn "begin emergency database checkpoint\n";
		3431	BDB::db_env_txn_checkpoint $DB_ENV;
		3432	warn "end emergency database checkpoint\n";
		3433	};
		3434
		3435	warn "leave emergency perl save\n";
		3436	}
		3437
		3438	sub post_cleanup {
		3439	my ($make_core) = @_;
		3440
		3441	warn Carp::longmess "post_cleanup backtrace"
		3442	if $make_core;
		3443	}
		3444
1841	sub reload() {	3445	sub do_reload_perl() {
1842	# can/must only be called in main	3446	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	3447	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	3448	warn "can only reload from main coroutine";
1845	return;	3449	return;
1846	}	3450	}
1847		3451
1848	warn "reloading...";	3452	warn "reloading...";
1849		3453
1850	local $FREEZE = 1;	3454	warn "entering sync_job";
		3455
		3456	cf::sync_job {
		3457	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	3458	cf::emergency_save;
		3459	cf::write_runtime; # external watchdog should not bark
1852		3460
1853	eval {	3461	warn "syncing database to disk";
		3462	BDB::db_env_txn_checkpoint $DB_ENV;
		3463
1854	# if anything goes wrong in here, we should simply crash as we already saved	3464	# if anything goes wrong in here, we should simply crash as we already saved
1855		3465
1856	# cancel all watchers	3466	warn "flushing outstanding aio requests";
1857	for (Event::all_watchers) {	3467	for (;;) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	3468	BDB::flush;
		3469	IO::AIO::flush;
		3470	Coro::cede_notself;
		3471	last unless IO::AIO::nreqs || BDB::nreqs;
		3472	warn "iterate...";
1859	}	3473	}
1860		3474
		3475	++$RELOAD;
		3476
1861	# cancel all extension coros	3477	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	3478	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	3479	%EXT_CORO = ();
1864		3480
1865	# unload all extensions	3481	warn "removing commands";
1866	for (@exts) {	3482	%COMMAND = ();
		3483
		3484	warn "removing ext/exti commands";
		3485	%EXTCMD = ();
		3486	%EXTICMD = ();
		3487
		3488	warn "unloading/nuking all extensions";
		3489	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	3490	warn "... unloading $pkg";
1868	unload_extension $_;	3491
		3492	if (my $cb = $pkg->can ("unload")) {
		3493	eval {
		3494	$cb->($pkg);
		3495	1
		3496	} or warn "$pkg unloaded, but with errors: $@";
1869	}	3497	}
1870		3498
		3499	warn "... nuking $pkg";
		3500	Symbol::delete_package $pkg;
		3501	}
		3502
1871	# unload all modules loaded from $LIBDIR	3503	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	3504	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3505	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		3506
1875	warn "removing <$k>";	3507	warn "... unloading $k";
1876	delete $INC{$k};	3508	delete $INC{$k};
1877		3509
1878	$k =~ s/\.pm$//;	3510	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	3511	$k =~ s/\//::/g;
1880		3512
…		…
1883	}	3515	}
1884		3516
1885	Symbol::delete_package $k;	3517	Symbol::delete_package $k;
1886	}	3518	}
1887		3519
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	3520	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	3521	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3522	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		3523
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	3524	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	3525	delete $INC{"cf.pm"};
		3526	delete $INC{"cf/pod.pm"};
1901		3527
1902	# don't, removes xs symbols, too,	3528	# don't, removes xs symbols, too,
1903	# and global variables created in xs	3529	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	3530	#Symbol::delete_package __PACKAGE__;
1905		3531
1906	# reload cf.pm	3532	warn "unload completed, starting to reload now";
		3533
1907	warn "reloading cf.pm";	3534	warn "reloading cf.pm";
1908	require cf;	3535	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3536	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		3537
1911	# load config and database again	3538	warn "loading config and database again";
1912	cf::cfg_load;	3539	cf::reload_config;
1913	cf::db_load;
1914		3540
1915	# load extensions
1916	warn "load extensions";	3541	warn "loading extensions";
1917	cf::load_extensions;	3542	cf::load_extensions;
1918		3543
1919	# reattach attachments to objects	3544	warn "reattaching attachments to objects/players";
1920	warn "reattach";	3545	_global_reattach; # objects, sockets
1921	_global_reattach;	3546	warn "reattaching attachments to maps";
1922	};	3547	reattach $_ for values %MAP;
		3548	warn "reattaching attachments to players";
		3549	reattach $_ for values %PLAYER;
1923		3550
1924	if ($@) {	3551	warn "leaving sync_job";
		3552
		3553	1
		3554	} or do {
1925	warn $@;	3555	warn $@;
1926	warn "error while reloading, exiting.";	3556	warn "error while reloading, exiting.";
1927	exit 1;	3557	exit 1;
1928	}	3558	};
1929		3559
1930	warn "reloaded successfully";	3560	warn "reloaded";
1931	};	3561	};
1932		3562
1933	#############################################################################	3563	our $RELOAD_WATCHER; # used only during reload
1934		3564
1935	unless ($LINK_MAP) {	3565	sub reload_perl() {
1936	$LINK_MAP = cf::map::new;	3566	# doing reload synchronously and two reloads happen back-to-back,
		3567	# coro crashes during coro_state_free->destroy here.
1937		3568
1938	$LINK_MAP->width (41);	3569	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
1939	$LINK_MAP->height (41);	3570	undef $RELOAD_WATCHER;
1940	$LINK_MAP->alloc;	3571	do_reload_perl;
1941	$LINK_MAP->path ("{link}");	3572	};
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}	3573	}
1975
1976	register "<global>", __PACKAGE__;
1977		3574
1978	register_command "reload" => sub {	3575	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	3576	my ($who, $arg) = @_;
1980		3577
1981	if ($who->flag (FLAG_WIZ)) {	3578	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");
1983	reload;
1984	$who->message ("end of reload.");	3579	$who->message ("reloading server.");
		3580	async {
		3581	$Coro::current->{desc} = "perl_reload";
		3582	reload_perl;
		3583	};
1985	}	3584	}
1986	};	3585	};
1987		3586
1988	unshift @INC, $LIBDIR;	3587	unshift @INC, $LIBDIR;
1989		3588
1990	$TICK_WATCHER = Event->timer (	3589	my $bug_warning = 0;
1991	reentrant => 0,	3590
1992	prio => 0,	3591	our @WAIT_FOR_TICK;
1993	at => $NEXT_TICK || $TICK,	3592	our @WAIT_FOR_TICK_BEGIN;
1994	data => WF_AUTOCANCEL,	3593
1995	cb => sub {	3594	sub wait_for_tick {
1996	unless ($FREEZE) {	3595	return unless $TICK_WATCHER->is_active;
		3596	return if $Coro::current == $Coro::main;
		3597
		3598	my $signal = new Coro::Signal;
		3599	push @WAIT_FOR_TICK, $signal;
		3600	$signal->wait;
		3601	}
		3602
		3603	sub wait_for_tick_begin {
		3604	return unless $TICK_WATCHER->is_active;
		3605	return if $Coro::current == $Coro::main;
		3606
		3607	my $signal = new Coro::Signal;
		3608	push @WAIT_FOR_TICK_BEGIN, $signal;
		3609	$signal->wait;
		3610	}
		3611
		3612	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3613	if ($Coro::current != $Coro::main) {
		3614	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3615	unless ++$bug_warning > 10;
		3616	return;
		3617	}
		3618
		3619	$NOW = $tick_start = EV::now;
		3620
1997	cf::server_tick; # one server iteration	3621	cf::server_tick; # one server iteration
		3622
1998	$RUNTIME += $TICK;	3623	$RUNTIME += $TICK;
1999	}	3624	$NEXT_TICK = $_[0]->at;
2000		3625
2001	$NEXT_TICK += $TICK;	3626	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2002		3627	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2003	# if we are delayed by four ticks or more, skip them all	3628	Coro::async_pool {
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3629	$Coro::current->{desc} = "runtime saver";
2005
2006	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;
2008	},
2009	);
2010
2011	IO::AIO::max_poll_time $TICK * 0.2;
2012
2013	Event->io (
2014	fd => IO::AIO::poll_fileno,
2015	poll => 'r',
2016	prio => 5,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,
2023	after => 0,
2024	interval => 10,
2025	cb => sub {
2026	(Coro::unblock_sub {
2027	write_runtime	3630	write_runtime
2028	or warn "ERROR: unable to write runtime file: $!";	3631	or warn "ERROR: unable to write runtime file: $!";
2029	})->();	3632	};
2030	},	3633	}
2031	);	3634
		3635	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3636	$sig->send;
		3637	}
		3638	while (my $sig = shift @WAIT_FOR_TICK) {
		3639	$sig->send;
		3640	}
		3641
		3642	$LOAD = ($NOW - $tick_start) / $TICK;
		3643	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3644
		3645	_post_tick;
		3646	};
		3647	$TICK_WATCHER->priority (EV::MAXPRI);
		3648
		3649	{
		3650	# configure BDB
		3651
		3652	BDB::min_parallel 8;
		3653	BDB::max_poll_reqs $TICK * 0.1;
		3654	$Coro::BDB::WATCHER->priority (1);
		3655
		3656	unless ($DB_ENV) {
		3657	$DB_ENV = BDB::db_env_create;
		3658	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3659	| BDB::LOG_AUTOREMOVE, 1);
		3660	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3661	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3662
		3663	cf::sync_job {
		3664	eval {
		3665	BDB::db_env_open
		3666	$DB_ENV,
		3667	$BDBDIR,
		3668	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3669	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3670	0666;
		3671
		3672	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3673	};
		3674
		3675	cf::cleanup "db_env_open(db): $@" if $@;
		3676	};
		3677	}
		3678
		3679	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3680	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3681	};
		3682	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3683	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3684	};
		3685	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3686	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3687	};
		3688	}
		3689
		3690	{
		3691	# configure IO::AIO
		3692
		3693	IO::AIO::min_parallel 8;
		3694	IO::AIO::max_poll_time $TICK * 0.1;
		3695	$Coro::AIO::WATCHER->priority (1);
		3696	}
		3697
		3698	my $_log_backtrace;
		3699
		3700	sub _log_backtrace {
		3701	my ($msg, @addr) = @_;
		3702
		3703	$msg =~ s/\n//;
		3704
		3705	# limit the # of concurrent backtraces
		3706	if ($_log_backtrace < 2) {
		3707	++$_log_backtrace;
		3708	async {
		3709	$Coro::current->{desc} = "abt $msg";
		3710
		3711	my @bt = fork_call {
		3712	@addr = map { sprintf "%x", $_ } @addr;
		3713	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3714	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3715	or die "addr2line: $!";
		3716
		3717	my @funcs;
		3718	my @res = <$fh>;
		3719	chomp for @res;
		3720	while (@res) {
		3721	my ($func, $line) = splice @res, 0, 2, ();
		3722	push @funcs, "[$func] $line";
		3723	}
		3724
		3725	@funcs
		3726	};
		3727
		3728	LOG llevInfo, "[ABT] $msg\n";
		3729	LOG llevInfo, "[ABT] $_\n" for @bt;
		3730	--$_log_backtrace;
		3731	};
		3732	} else {
		3733	LOG llevInfo, "[ABT] $msg\n";
		3734	LOG llevInfo, "[ABT] [suppressed]\n";
		3735	}
		3736	}
		3737
		3738	# load additional modules
		3739	use cf::pod;
		3740
		3741	END { cf::emergency_save }
2032		3742
2033	1	3743	1
2034		3744

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