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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC vs.
Revision 1.354 by root, Sun Sep 2 12:26:54 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
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 $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $DB_ENV;
46		86
47	our %CFG;	87	our %CFG;
48		88
49	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	90	our $RUNTIME;
51		91
		92	our %PLAYER; # all users
52	our %MAP; # all maps	93	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	94	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	95
55	our $RANDOM_MAPS = cf::localdir . "/random";	96	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available	116	our $EMERGENCY_POSITION;
75	our $LINK_MAP;	117
		118	sub cf::map::normalise;
76		119
77	#############################################################################	120	#############################################################################
78		121
79	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
80		123
…		…
87	=item $cf::RUNTIME	130	=item $cf::RUNTIME
88		131
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	133	every server tick.
91		134
92	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		138
94	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
96		143
97	=item $cf::NOW	144	=item $cf::NOW
98		145
99	The time of the last (current) server tick.	146	The time of the last (current) server tick.
100		147
101	=item $cf::TICK	148	=item $cf::TICK
102		149
103	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
104		161
105	=item %cf::CFG	162	=item %cf::CFG
106		163
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
109		178
110	=back	179	=back
111		180
112	=cut	181	=cut
113		182
114	BEGIN {	183	BEGIN {
115	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	185	my $msg = join "", @_;
117	utf8::encode $msg;
118		186
119	$msg .= "\n"	187	$msg .= "\n"
120	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
121		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
123	};	194	};
124	}	195	}
125		196
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		204
133	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	206	# within the Safe compartment.
135	for my $pkg (qw(	207	for my $pkg (qw(
136	cf::global cf::attachable	208	cf::global cf::attachable
…		…
145		217
146	$Event::DIED = sub {	218	$Event::DIED = sub {
147	warn "error in event callback: @_";	219	warn "error in event callback: @_";
148	};	220	};
149		221
150	my %ext_pkg;	222	#############################################################################
151	my @exts;
152	my @hook;
153		223
154	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
155		225
156	=over 4	226	=over 4
157		227
158	=cut	228	=item dumpval $ref
159		229
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
161		250
162	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
163		252
164	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
165		254
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
174		256
175	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
176		258
177	=cut	259	=cut
178		260
179	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
181	JSON::Syck::Dump $_[0]	263	sub to_json ($) { $json_coder->encode ($_[0]) }
		264	sub from_json ($) { $json_coder->decode ($_[0]) }
		265
		266	=item cf::lock_wait $string
		267
		268	Wait until the given lock is available. See cf::lock_acquire.
		269
		270	=item my $lock = cf::lock_acquire $string
		271
		272	Wait until the given lock is available and then acquires it and returns
		273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		274	for example when the coroutine gets canceled), the lock is automatically
		275	returned.
		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
		280	Lock names should begin with a unique identifier (for example, cf::map::find
		281	uses map_find and cf::map::load uses map_load).
		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
		287	=cut
		288
		289	our %LOCK;
		290
		291	sub lock_wait($) {
		292	my ($key) = @_;
		293
		294	# wait for lock, if any
		295	while ($LOCK{$key}) {
		296	push @{ $LOCK{$key} }, $Coro::current;
		297	Coro::schedule;
		298	}
182	}	299	}
		300
		301	sub lock_acquire($) {
		302	my ($key) = @_;
		303
		304	# wait, to be sure we are not locked
		305	lock_wait $key;
		306
		307	$LOCK{$key} = [];
		308
		309	Coro::guard {
		310	# wake up all waiters, to be on the safe side
		311	$_->ready for @{ delete $LOCK{$key} };
		312	}
		313	}
		314
		315	sub lock_active($) {
		316	my ($key) = @_;
		317
		318	! ! $LOCK{$key}
		319	}
		320
		321	sub freeze_mainloop {
		322	return unless $TICK_WATCHER->is_active;
		323
		324	my $guard = Coro::guard {
		325	$TICK_WATCHER->start;
		326	};
		327	$TICK_WATCHER->stop;
		328	$guard
		329	}
		330
		331	=item cf::get_slot $time[, $priority[, $name]]
		332
		333	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		334	This call blocks and returns only when you have at least C<$time> seconds
		335	of cpu time till the next tick. The slot is only valid till the next cede.
		336
		337	The optional C<$name> can be used to identify the job to run. It might be
		338	used for statistical purposes and should identify the same time-class.
		339
		340	Useful for short background jobs.
		341
		342	=cut
		343
		344	our @SLOT_QUEUE;
		345	our $SLOT_QUEUE;
		346
		347	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		348	$SLOT_QUEUE = Coro::async {
		349	my $signal = new Coro::Signal;
		350
		351	while () {
		352	next_job:
		353	my $avail = cf::till_tick;
		354	if ($avail > 0.01) {
		355	for (0 .. $#SLOT_QUEUE) {
		356	if ($SLOT_QUEUE[$_][0] < $avail) {
		357	my $job = splice @SLOT_QUEUE, $_, 1, ();
		358	$job->[2]->send;
		359	Coro::cede;
		360	goto next_job;
		361	}
		362	}
		363	}
		364
		365	if (@SLOT_QUEUE) {
		366	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		367	push @cf::WAIT_FOR_TICK, $signal;
		368	$signal->wait;
		369	} else {
		370	Coro::schedule;
		371	}
		372	}
		373	};
		374
		375	sub get_slot($;$$) {
		376	my ($time, $pri, $name) = @_;
		377
		378	$time = $TICK * .6 if $time > $TICK * .6;
		379	my $sig = new Coro::Signal;
		380
		381	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		382	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		383	$SLOT_QUEUE->ready;
		384	$sig->wait;
		385	}
		386
		387	=item cf::async { BLOCK }
		388
		389	Currently the same as Coro::async_pool, meaning you cannot use
		390	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		391	thing you are allowed to do is call C<prio> on it.
		392
		393	=cut
		394
		395	BEGIN { *async = \&Coro::async_pool }
183		396
184	=item cf::sync_job { BLOCK }	397	=item cf::sync_job { BLOCK }
185		398
186	The design of crossfire+ requires that the main coro ($Coro::main) is	399	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
187	always able to handle events or runnable, as crossfire+ is only partly	400	is always able to handle events or runnable, as Crossfire TRT is only
188	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	401	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		402	acceptable.
189		403
190	If it must be done, put the blocking parts into C<sync_job>. This will run	404	If it must be done, put the blocking parts into C<sync_job>. This will run
191	the given BLOCK in another coroutine while waiting for the result. The	405	the given BLOCK in another coroutine while waiting for the result. The
192	server will be frozen during this time, so the block should either finish	406	server will be frozen during this time, so the block should either finish
193	fast or be very important.	407	fast or be very important.
…		…
195	=cut	409	=cut
196		410
197	sub sync_job(&) {	411	sub sync_job(&) {
198	my ($job) = @_;	412	my ($job) = @_;
199		413
200	my $busy = 1;
201	my @res;
202
203	# TODO: use suspend/resume instead
204	local $FREEZE = 1;
205
206	my $coro = Coro::async {
207	@res = eval { $job->() };
208	warn $@ if $@;
209	undef $busy;
210	};
211
212	if ($Coro::current == $Coro::main) {	414	if ($Coro::current == $Coro::main) {
		415	my $time = Event::time;
		416
		417	# this is the main coro, too bad, we have to block
		418	# till the operation succeeds, freezing the server :/
		419
		420	# TODO: use suspend/resume instead
		421	# (but this is cancel-safe)
		422	my $freeze_guard = freeze_mainloop;
		423
		424	my $busy = 1;
		425	my @res;
		426
		427	(async {
		428	@res = eval { $job->() };
		429	warn $@ if $@;
		430	undef $busy;
213	$coro->prio (Coro::PRIO_MAX);	431	})->prio (Coro::PRIO_MAX);
		432
214	while ($busy) {	433	while ($busy) {
215	Coro::cede_notself;	434	Coro::cede or Event::one_event;
216	Event::one_event unless Coro::nready;
217	}	435	}
		436
		437	$time = Event::time - $time;
		438
		439	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		440	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		441
		442	$tick_start += $time; # do not account sync jobs to server load
		443
		444	wantarray ? @res : $res[0]
218	} else {	445	} else {
219	$coro->join;	446	# we are in another coroutine, how wonderful, everything just works
		447
		448	$job->()
220	}	449	}
221
222	wantarray ? @res : $res[0]
223	}	450	}
224		451
225	=item $coro = cf::coro { BLOCK }	452	=item $coro = cf::async_ext { BLOCK }
226		453
227	Creates and returns a new coro. This coro is automcatially being canceled	454	Like async, but this coro is automatically being canceled when the
228	when the extension calling this is being unloaded.	455	extension calling this is being unloaded.
229		456
230	=cut	457	=cut
231		458
232	sub coro(&) {	459	sub async_ext(&) {
233	my $cb = shift;	460	my $cb = shift;
234		461
235	my $coro; $coro = async {	462	my $coro = &Coro::async ($cb);
236	eval {
237	$cb->();
238	};
239	warn $@ if $@;
240	};
241		463
242	$coro->on_destroy (sub {	464	$coro->on_destroy (sub {
243	delete $EXT_CORO{$coro+0};	465	delete $EXT_CORO{$coro+0};
244	});	466	});
245	$EXT_CORO{$coro+0} = $coro;	467	$EXT_CORO{$coro+0} = $coro;
246		468
247	$coro	469	$coro
248	}	470	}
249		471
250	sub write_runtime {	472	=item fork_call { }, $args
251	my $runtime = cf::localdir . "/runtime";
252		473
253	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	474	Executes the given code block with the given arguments in a seperate
254	or return;	475	process, returning the results. Everything must be serialisable with
		476	Coro::Storable. May, of course, block. Note that the executed sub may
		477	never block itself or use any form of Event handling.
255		478
256	my $value = $cf::RUNTIME;	479	=cut
257	(aio_write $fh, 0, (length $value), $value, 0) <= 0
258	and return;
259		480
260	aio_fsync $fh	481	sub fork_call(&@) {
261	and return;	482	my ($cb, @args) = @_;
262		483
263	close $fh	484	# we seemingly have to make a local copy of the whole thing,
264	or return;	485	# otherwise perl prematurely frees the stuff :/
		486	# TODO: investigate and fix (liekly this will be rather laborious)
265		487
266	aio_rename "$runtime~", $runtime	488	my @res = Coro::Util::fork_eval {
267	and return;	489	reset_signals;
		490	&$cb
		491	}, @args;
268		492
		493	wantarray ? @res : $res[-1]
		494	}
		495
		496	=item $value = cf::db_get $family => $key
		497
		498	Returns a single value from the environment database.
		499
		500	=item cf::db_put $family => $key => $value
		501
		502	Stores the given C<$value> in the family. It can currently store binary
		503	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		504
		505	=cut
		506
		507	our $DB;
		508
		509	sub db_init {
		510	unless ($DB) {
		511	$DB = BDB::db_create $DB_ENV;
		512
		513	cf::sync_job {
		514	eval {
		515	$DB->set_flags (BDB::CHKSUM);
		516
		517	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		518	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		519	cf::cleanup "db_open(db): $!" if $!;
		520	};
		521	cf::cleanup "db_open(db): $@" if $@;
		522	};
269	1	523	}
		524	}
		525
		526	sub db_get($$) {
		527	my $key = "$_[0]/$_[1]";
		528
		529	cf::sync_job {
		530	BDB::db_get $DB, undef, $key, my $data;
		531
		532	$! ? ()
		533	: $data
		534	}
		535	}
		536
		537	sub db_put($$$) {
		538	BDB::dbreq_pri 4;
		539	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		540	}
		541
		542	=item cf::cache $id => [$paths...], $processversion => $process
		543
		544	Generic caching function that returns the value of the resource $id,
		545	caching and regenerating as required.
		546
		547	This function can block.
		548
		549	=cut
		550
		551	sub cache {
		552	my ($id, $src, $processversion, $process) = @_;
		553
		554	my $meta =
		555	join "\x00",
		556	$processversion,
		557	map {
		558	aio_stat $_
		559	and Carp::croak "$_: $!";
		560
		561	($_, (stat _)[7,9])
		562	} @$src;
		563
		564	my $dbmeta = db_get cache => "$id/meta";
		565	if ($dbmeta ne $meta) {
		566	# changed, we may need to process
		567
		568	my @data;
		569	my $md5;
		570
		571	for (0 .. $#$src) {
		572	0 <= aio_load $src->[$_], $data[$_]
		573	or Carp::croak "$src->[$_]: $!";
		574	}
		575
		576	# if processing is expensive, check
		577	# checksum first
		578	if (1) {
		579	$md5 =
		580	join "\x00",
		581	$processversion,
		582	map {
		583	cf::cede_to_tick;
		584	($src->[$_], Digest::MD5::md5_hex $data[$_])
		585	} 0.. $#$src;
		586
		587
		588	my $dbmd5 = db_get cache => "$id/md5";
		589	if ($dbmd5 eq $md5) {
		590	db_put cache => "$id/meta", $meta;
		591
		592	return db_get cache => "$id/data";
		593	}
		594	}
		595
		596	my $t1 = Time::HiRes::time;
		597	my $data = $process->(\@data);
		598	my $t2 = Time::HiRes::time;
		599
		600	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		601
		602	db_put cache => "$id/data", $data;
		603	db_put cache => "$id/md5" , $md5;
		604	db_put cache => "$id/meta", $meta;
		605
		606	return $data;
		607	}
		608
		609	db_get cache => "$id/data"
		610	}
		611
		612	=item cf::datalog type => key => value, ...
		613
		614	Log a datalog packet of the given type with the given key-value pairs.
		615
		616	=cut
		617
		618	sub datalog($@) {
		619	my ($type, %kv) = @_;
		620	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
270	}	621	}
271		622
272	=back	623	=back
273		624
274	=cut	625	=cut
275
276	#############################################################################
277
278	package cf::path;
279
280	sub new {
281	my ($class, $path, $base) = @_;
282
283	my $self = bless { }, $class;
284
285	if ($path =~ s{^\?random/}{}) {
286	$self->{random} = cf::from_json $path;
287	} else {
288	if ($path =~ s{^~([^/]+)?}{}) {
289	$self->{user_rel} = 1;
290
291	if (defined $1) {
292	$self->{user} = $1;
293	} elsif ($base =~ m{^~([^/]+)/}) {
294	$self->{user} = $1;
295	} else {
296	warn "cannot resolve user-relative path without user <$path,$base>\n";
297	}
298	} elsif ($path =~ /^\//) {
299	# already absolute
300	} else {
301	$base =~ s{[^/]+/?$}{};
302	return $class->new ("$base/$path");
303	}
304
305	for ($path) {
306	redo if s{/\.?/}{/};
307	redo if s{/[^/]+/\.\./}{/};
308	}
309	}
310
311	$self->{path} = $path;
312
313	$self
314	}
315
316	# the name / primary key / in-game path
317	sub as_string {
318	my ($self) = @_;
319
320	$self->{user_rel} ? "~$self->{user}$self->{path}"
321	: $self->{random} ? "?random/$self->{path}"
322	: $self->{path}
323	}
324
325	# the displayed name, this is a one way mapping
326	sub visible_name {
327	my ($self) = @_;
328
329	$self->{random} ? "?random/$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}/$self->{random}{dungeon_level}"
330	: $self->as_string
331	}
332
333	# escape the /'s in the path
334	sub _escaped_path {
335	# ∕ is U+2215
336	(my $path = $_[0]{path}) =~ s/\//∕/g;
337	$path
338	}
339
340	# the original (read-only) location
341	sub load_path {
342	my ($self) = @_;
343
344	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
345	}
346
347	# the temporary/swap location
348	sub save_path {
349	my ($self) = @_;
350
351	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
352	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, Digest::MD5::md5_hex $self->{path}
353	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
354	}
355
356	# the unique path, might be eq to save_path
357	sub uniq_path {
358	my ($self) = @_;
359
360	$self->{user_rel} || $self->{random}
361	? undef
362	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
363	}
364
365	# return random map parameters, or undef
366	sub random_map_params {
367	my ($self) = @_;
368
369	$self->{random}
370	}
371
372	# this is somewhat ugly, but style maps do need special treatment
373	sub is_style_map {
374	$_[0]{path} =~ m{^/styles/}
375	}
376
377	package cf;
378		626
379	#############################################################################	627	#############################################################################
380		628
381	=head2 ATTACHABLE OBJECTS	629	=head2 ATTACHABLE OBJECTS
382		630
…		…
384	attach callbacks/event handlers (a collection of which is called an "attachment")	632	attach callbacks/event handlers (a collection of which is called an "attachment")
385	to it. All such attachable objects support the following methods.	633	to it. All such attachable objects support the following methods.
386		634
387	In the following description, CLASS can be any of C<global>, C<object>	635	In the following description, CLASS can be any of C<global>, C<object>
388	C<player>, C<client> or C<map> (i.e. the attachable objects in	636	C<player>, C<client> or C<map> (i.e. the attachable objects in
389	crossfire+).	637	Crossfire TRT).
390		638
391	=over 4	639	=over 4
392		640
393	=item $attachable->attach ($attachment, key => $value...)	641	=item $attachable->attach ($attachment, key => $value...)
394		642
…		…
508	our @CB_TYPE = (); # registry for type (cf-object class) based events	756	our @CB_TYPE = (); # registry for type (cf-object class) based events
509	our @CB_MAP = ();	757	our @CB_MAP = ();
510		758
511	my %attachment;	759	my %attachment;
512		760
		761	sub cf::attachable::thawer_merge {
		762	# simply override everything except _meta
		763	local $_[0]{_meta};
		764	%{$_[0]} = %{$_[1]};
		765	}
		766
513	sub _attach_cb($$$$) {	767	sub _attach_cb($$$$) {
514	my ($registry, $event, $prio, $cb) = @_;	768	my ($registry, $event, $prio, $cb) = @_;
515		769
516	use sort 'stable';	770	use sort 'stable';
517		771
…		…
551	$registry = $CB_TYPE[$object_type] ||= [];	805	$registry = $CB_TYPE[$object_type] ||= [];
552		806
553	} elsif ($type eq "subtype") {	807	} elsif ($type eq "subtype") {
554	defined $object_type or Carp::croak "subtype specified without type";	808	defined $object_type or Carp::croak "subtype specified without type";
555	my $object_subtype = shift @arg;	809	my $object_subtype = shift @arg;
556	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	810	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
557		811
558	} elsif ($type eq "package") {	812	} elsif ($type eq "package") {
559	my $pkg = shift @arg;	813	my $pkg = shift @arg;
560		814
561	while (my ($name, $id) = each %cb_id) {	815	while (my ($name, $id) = each %cb_id) {
…		…
590	_attach $registry, $klass, @attach;	844	_attach $registry, $klass, @attach;
591	}	845	}
592		846
593	$obj->{$name} = \%arg;	847	$obj->{$name} = \%arg;
594	} else {	848	} else {
595	warn "object uses attachment '$name' that is not available, postponing.\n";	849	warn "object uses attachment '$name' which is not available, postponing.\n";
596	}	850	}
597		851
598	$obj->{_attachment}{$name} = undef;	852	$obj->{_attachment}{$name} = undef;
599	}	853	}
600		854
…		…
602	if (ref $_[0]) {	856	if (ref $_[0]) {
603	_object_attach @_;	857	_object_attach @_;
604	} else {	858	} else {
605	_attach shift->_attach_registry, @_;	859	_attach shift->_attach_registry, @_;
606	}	860	}
		861	_recalc_want;
607	};	862	};
608		863
609	# all those should be optimised	864	# all those should be optimised
610	sub cf::attachable::detach {	865	sub cf::attachable::detach {
611	my ($obj, $name) = @_;	866	my ($obj, $name) = @_;
…		…
614	delete $obj->{_attachment}{$name};	869	delete $obj->{_attachment}{$name};
615	reattach ($obj);	870	reattach ($obj);
616	} else {	871	} else {
617	Carp::croak "cannot, currently, detach class attachments";	872	Carp::croak "cannot, currently, detach class attachments";
618	}	873	}
		874	_recalc_want;
619	};	875	};
620		876
621	sub cf::attachable::attached {	877	sub cf::attachable::attached {
622	my ($obj, $name) = @_;	878	my ($obj, $name) = @_;
623		879
…		…
638	";	894	";
639	die if $@;	895	die if $@;
640	}	896	}
641		897
642	our $override;	898	our $override;
643	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	899	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
644		900
645	sub override {	901	sub override {
646	$override = 1;	902	$override = 1;
647	@invoke_results = ();	903	@INVOKE_RESULTS = (@_);
648	}	904	}
649		905
650	sub do_invoke {	906	sub do_invoke {
651	my $event = shift;	907	my $event = shift;
652	my $callbacks = shift;	908	my $callbacks = shift;
653		909
654	@invoke_results = ();	910	@INVOKE_RESULTS = ();
655		911
656	local $override;	912	local $override;
657		913
658	for (@$callbacks) {	914	for (@$callbacks) {
659	eval { &{$_->[1]} };	915	eval { &{$_->[1]} };
…		…
676		932
677	Generate an object-specific event with the given arguments.	933	Generate an object-specific event with the given arguments.
678		934
679	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	935	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
680	removed in future versions), and there is no public API to access override	936	removed in future versions), and there is no public API to access override
681	results (if you must, access C<@cf::invoke_results> directly).	937	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
682		938
683	=back	939	=back
684		940
685	=cut	941	=cut
686		942
687	#############################################################################	943	#############################################################################
688	# object support	944	# object support
		945	#
		946
		947	sub _can_merge {
		948	my ($ob1, $ob2) = @_;
		949
		950	local $Storable::canonical = 1;
		951	my $fob1 = Storable::freeze $ob1;
		952	my $fob2 = Storable::freeze $ob2;
		953
		954	$fob1 eq $fob2
		955	}
689		956
690	sub reattach {	957	sub reattach {
691	# basically do the same as instantiate, without calling instantiate	958	# basically do the same as instantiate, without calling instantiate
692	my ($obj) = @_;	959	my ($obj) = @_;
		960
		961	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
693		962
694	my $registry = $obj->registry;	963	my $registry = $obj->registry;
695		964
696	@$registry = ();	965	@$registry = ();
697		966
…		…
744	$filename, length $$rdata, scalar @$objs;	1013	$filename, length $$rdata, scalar @$objs;
745		1014
746	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1015	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
747	chmod SAVE_MODE, $fh;	1016	chmod SAVE_MODE, $fh;
748	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1017	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
749	aio_fsync $fh;	1018	aio_fsync $fh if $cf::USE_FSYNC;
750	close $fh;	1019	close $fh;
751		1020
752	if (@$objs) {	1021	if (@$objs) {
753	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1022	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
754	chmod SAVE_MODE, $fh;	1023	chmod SAVE_MODE, $fh;
755	my $data = Storable::nfreeze { version => 1, objs => $objs };	1024	my $data = Storable::nfreeze { version => 1, objs => $objs };
756	aio_write $fh, 0, (length $data), $data, 0;	1025	aio_write $fh, 0, (length $data), $data, 0;
757	aio_fsync $fh;	1026	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1027	close $fh;
759	aio_rename "$filename.pst~", "$filename.pst";	1028	aio_rename "$filename.pst~", "$filename.pst";
760	}	1029	}
761	} else {	1030	} else {
762	aio_unlink "$filename.pst";	1031	aio_unlink "$filename.pst";
…		…
790	or return;	1059	or return;
791		1060
792	unless (aio_stat "$filename.pst") {	1061	unless (aio_stat "$filename.pst") {
793	(aio_load "$filename.pst", $av) >= 0	1062	(aio_load "$filename.pst", $av) >= 0
794	or return;	1063	or return;
795	$av = eval { (Storable::thaw <$av>)->{objs} };	1064	$av = eval { (Storable::thaw $av)->{objs} };
796	}	1065	}
797		1066
		1067	warn sprintf "loading %s (%d)\n",
		1068	$filename, length $data, scalar @{$av || []};
798	return ($data, $av);	1069	return ($data, $av);
799	}	1070	}
		1071
		1072	=head2 COMMAND CALLBACKS
		1073
		1074	=over 4
		1075
		1076	=cut
800		1077
801	#############################################################################	1078	#############################################################################
802	# command handling &c	1079	# command handling &c
803		1080
804	=item cf::register_command $name => \&callback($ob,$args);	1081	=item cf::register_command $name => \&callback($ob,$args);
…		…
817	push @{ $COMMAND{$name} }, [$caller, $cb];	1094	push @{ $COMMAND{$name} }, [$caller, $cb];
818	}	1095	}
819		1096
820	=item cf::register_extcmd $name => \&callback($pl,$packet);	1097	=item cf::register_extcmd $name => \&callback($pl,$packet);
821		1098
822	Register a callbackf ro execution when the client sends an extcmd packet.	1099	Register a callback for execution when the client sends an (synchronous)
		1100	extcmd packet. Ext commands will be processed in the order they are
		1101	received by the server, like other user commands. The first argument is
		1102	the logged-in player. Ext commands can only be processed after a player
		1103	has logged in successfully.
823		1104
824	If the callback returns something, it is sent back as if reply was being	1105	If the callback returns something, it is sent back as if reply was being
825	called.	1106	called.
826		1107
		1108	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1109
		1110	Register a callback for execution when the client sends an (asynchronous)
		1111	exticmd packet. Exti commands are processed by the server as soon as they
		1112	are received, i.e. out of order w.r.t. other commands. The first argument
		1113	is a client socket. Exti commands can be received anytime, even before
		1114	log-in.
		1115
		1116	If the callback returns something, it is sent back as if reply was being
		1117	called.
		1118
827	=cut	1119	=cut
828		1120
829	sub register_extcmd {	1121	sub register_extcmd {
830	my ($name, $cb) = @_;	1122	my ($name, $cb) = @_;
831		1123
832	my $caller = caller;
833	#warn "registering extcmd '$name' to '$caller'";
834
835	$EXTCMD{$name} = [$cb, $caller];	1124	$EXTCMD{$name} = $cb;
		1125	}
		1126
		1127	sub register_exticmd {
		1128	my ($name, $cb) = @_;
		1129
		1130	$EXTICMD{$name} = $cb;
836	}	1131	}
837		1132
838	cf::player->attach (	1133	cf::player->attach (
839	on_command => sub {	1134	on_command => sub {
840	my ($pl, $name, $params) = @_;	1135	my ($pl, $name, $params) = @_;
…		…
849	cf::override;	1144	cf::override;
850	},	1145	},
851	on_extcmd => sub {	1146	on_extcmd => sub {
852	my ($pl, $buf) = @_;	1147	my ($pl, $buf) = @_;
853		1148
854	my $msg = eval { from_json $buf };	1149	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
855		1150
856	if (ref $msg) {	1151	if (ref $msg) {
		1152	my ($type, $reply, @payload) =
		1153	"ARRAY" eq ref $msg
		1154	? @$msg
		1155	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1156
		1157	my @reply;
		1158
857	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1159	if (my $cb = $EXTCMD{$type}) {
858	if (my %reply = $cb->[0]->($pl, $msg)) {	1160	@reply = $cb->($pl, @payload);
859	$pl->ext_reply ($msg->{msgid}, %reply);
860	}
861	}	1161	}
		1162
		1163	$pl->ext_reply ($reply, @reply)
		1164	if $reply;
		1165
862	} else {	1166	} else {
863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1167	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
864	}	1168	}
865		1169
866	cf::override;	1170	cf::override;
867	},	1171	},
868	);	1172	);
869		1173
		1174	sub load_extensions {
		1175	cf::sync_job {
		1176	my %todo;
		1177
		1178	for my $path (<$LIBDIR/*.ext>) {
		1179	next unless -r $path;
		1180
		1181	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1182	my $base = $1;
		1183	my $pkg = $1;
		1184	$pkg =~ s/[^[:word:]]/_/g;
		1185	$pkg = "ext::$pkg";
		1186
		1187	open my $fh, "<:utf8", $path
		1188	or die "$path: $!";
		1189
		1190	my $source = do { local $/; <$fh> };
		1191
		1192	my %ext = (
		1193	path => $path,
		1194	base => $base,
		1195	pkg => $pkg,
		1196	);
		1197
		1198	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1199	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1200
		1201	$ext{source} =
		1202	"package $pkg; use strict; use utf8;\n"
		1203	. "#line 1 \"$path\"\n{\n"
		1204	. $source
		1205	. "\n};\n1";
		1206
		1207	$todo{$base} = \%ext;
		1208	}
		1209
		1210	my %done;
		1211	while (%todo) {
		1212	my $progress;
		1213
		1214	while (my ($k, $v) = each %todo) {
		1215	for (split /,\s*/, $v->{meta}{depends}) {
		1216	goto skip
		1217	unless exists $done{$_};
		1218	}
		1219
		1220	warn "... loading '$k' into '$v->{pkg}'\n";
		1221
		1222	unless (eval $v->{source}) {
		1223	my $msg = $@ ? "$v->{path}: $@\n"
		1224	: "$v->{base}: extension inactive.\n";
		1225
		1226	if (exists $v->{meta}{mandatory}) {
		1227	warn $msg;
		1228	warn "mandatory extension failed to load, exiting.\n";
		1229	exit 1;
		1230	}
		1231
		1232	warn $msg;
		1233	}
		1234
		1235	$done{$k} = delete $todo{$k};
		1236	push @EXTS, $v->{pkg};
		1237	$progress = 1;
		1238	}
		1239
		1240	skip:
		1241	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1242	unless $progress;
		1243	}
		1244	};
		1245	}
		1246
		1247	#############################################################################
		1248
		1249	=back
		1250
		1251	=head2 CORE EXTENSIONS
		1252
		1253	Functions and methods that extend core crossfire objects.
		1254
		1255	=cut
		1256
		1257	package cf::player;
		1258
		1259	use Coro::AIO;
		1260
		1261	=head3 cf::player
		1262
		1263	=over 4
		1264
		1265	=item cf::player::find $login
		1266
		1267	Returns the given player object, loading it if necessary (might block).
		1268
		1269	=cut
		1270
		1271	sub playerdir($) {
		1272	"$PLAYERDIR/"
		1273	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1274	}
		1275
		1276	sub path($) {
		1277	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1278
		1279	(playerdir $login) . "/playerdata"
		1280	}
		1281
		1282	sub find_active($) {
		1283	$cf::PLAYER{$_[0]}
		1284	and $cf::PLAYER{$_[0]}->active
		1285	and $cf::PLAYER{$_[0]}
		1286	}
		1287
		1288	sub exists($) {
		1289	my ($login) = @_;
		1290
		1291	$cf::PLAYER{$login}
		1292	or cf::sync_job { !aio_stat path $login }
		1293	}
		1294
		1295	sub find($) {
		1296	return $cf::PLAYER{$_[0]} || do {
		1297	my $login = $_[0];
		1298
		1299	my $guard = cf::lock_acquire "user_find:$login";
		1300
		1301	$cf::PLAYER{$_[0]} || do {
		1302	# rename old playerfiles to new ones
		1303	#TODO: remove when no longer required
		1304	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1305	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1306	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1307	aio_unlink +(playerdir $login) . "/$login.pl";
		1308
		1309	my $pl = load_pl path $login
		1310	or return;
		1311	$cf::PLAYER{$login} = $pl
		1312	}
		1313	}
		1314	}
		1315
		1316	sub save($) {
		1317	my ($pl) = @_;
		1318
		1319	return if $pl->{deny_save};
		1320
		1321	my $path = path $pl;
		1322	my $guard = cf::lock_acquire "user_save:$path";
		1323
		1324	return if $pl->{deny_save};
		1325
		1326	aio_mkdir playerdir $pl, 0770;
		1327	$pl->{last_save} = $cf::RUNTIME;
		1328
		1329	$pl->save_pl ($path);
		1330	cf::cede_to_tick;
		1331	}
		1332
		1333	sub new($) {
		1334	my ($login) = @_;
		1335
		1336	my $self = create;
		1337
		1338	$self->ob->name ($login);
		1339	$self->{deny_save} = 1;
		1340
		1341	$cf::PLAYER{$login} = $self;
		1342
		1343	$self
		1344	}
		1345
		1346	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1347
		1348	=cut
		1349
		1350	sub send_msg {
		1351	my $ns = shift->ns
		1352	or return;
		1353	$ns->send_msg (@_);
		1354	}
		1355
		1356	=item $pl->quit_character
		1357
		1358	Nukes the player without looking back. If logged in, the connection will
		1359	be destroyed. May block for a long time.
		1360
		1361	=cut
		1362
		1363	sub quit_character {
		1364	my ($pl) = @_;
		1365
		1366	my $name = $pl->ob->name;
		1367
		1368	$pl->{deny_save} = 1;
		1369	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1370
		1371	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1372	$pl->deactivate;
		1373	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1374	$pl->ns->destroy if $pl->ns;
		1375
		1376	my $path = playerdir $pl;
		1377	my $temp = "$path~$cf::RUNTIME~deleting~";
		1378	aio_rename $path, $temp;
		1379	delete $cf::PLAYER{$pl->ob->name};
		1380	$pl->destroy;
		1381
		1382	my $prefix = qr<^~\Q$name\E/>;
		1383
		1384	# nuke player maps
		1385	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1386
		1387	IO::AIO::aio_rmtree $temp;
		1388	}
		1389
		1390	=item $pl->kick
		1391
		1392	Kicks a player out of the game. This destroys the connection.
		1393
		1394	=cut
		1395
		1396	sub kick {
		1397	my ($pl, $kicker) = @_;
		1398
		1399	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1400	$pl->killer ("kicked");
		1401	$pl->ns->destroy;
		1402	}
		1403
		1404	=item cf::player::list_logins
		1405
		1406	Returns am arrayref of all valid playernames in the system, can take a
		1407	while and may block, so not sync_job-capable, ever.
		1408
		1409	=cut
		1410
		1411	sub list_logins {
		1412	my $dirs = aio_readdir $PLAYERDIR
		1413	or return [];
		1414
		1415	my @logins;
		1416
		1417	for my $login (@$dirs) {
		1418	my $path = path $login;
		1419
		1420	# a .pst is a dead give-away for a valid player
		1421	unless (-e "$path.pst") {
		1422	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1423	aio_read $fh, 0, 512, my $buf, 0 or next;
		1424	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1425	}
		1426
		1427	utf8::decode $login;
		1428	push @logins, $login;
		1429	}
		1430
		1431	\@logins
		1432	}
		1433
		1434	=item $player->maps
		1435
		1436	Returns an arrayref of map paths that are private for this
		1437	player. May block.
		1438
		1439	=cut
		1440
		1441	sub maps($) {
		1442	my ($pl) = @_;
		1443
		1444	$pl = ref $pl ? $pl->ob->name : $pl;
		1445
		1446	my $files = aio_readdir playerdir $pl
		1447	or return;
		1448
		1449	my @paths;
		1450
		1451	for (@$files) {
		1452	utf8::decode $_;
		1453	next if /\.(?:pl|pst)$/;
		1454	next unless /^$PATH_SEP/o;
		1455
		1456	push @paths, cf::map::normalise "~$pl/$_";
		1457	}
		1458
		1459	\@paths
		1460	}
		1461
		1462	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1463
		1464	Expand crossfire pod fragments into protocol xml.
		1465
		1466	=cut
		1467
		1468	sub expand_cfpod {
		1469	((my $self), (local $_)) = @_;
		1470
		1471	# escape & and <
		1472	s/&/&amp;/g;
		1473	s/(?<![BIUGHT])</&lt;/g;
		1474
		1475	# this is buggy, it needs to properly take care of nested <'s
		1476
		1477	1 while
		1478	# replace B<>, I<>, U<> etc.
		1479	s/B<([^\>]*)>/<b>$1<\/b>/
		1480	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1481	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1482	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1483	# replace G<male|female> tags
		1484	|| s{G<([^>|]*)\|([^>]*)>}{
		1485	$self->gender ? $2 : $1
		1486	}ge
		1487	# replace H<hint text>
		1488	|| s{H<([^\>]*)>}
		1489	{
		1490	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1491	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1492	"")
		1493	[$self->{hintmode}]
		1494	}ge;
		1495
		1496	# create single paragraphs (very hackish)
		1497	s/(?<=\S)\n(?=\w)/ /g;
		1498
		1499	# compress some whitespace
		1500	s/\s+\n/\n/g; # ws line-ends
		1501	s/\n\n+/\n/g; # double lines
		1502	s/^\n+//; # beginning lines
		1503	s/\n+$//; # ending lines
		1504
		1505	$_
		1506	}
		1507
		1508	sub hintmode {
		1509	$_[0]{hintmode} = $_[1] if @_ > 1;
		1510	$_[0]{hintmode}
		1511	}
		1512
		1513	=item $player->ext_reply ($msgid, @msg)
		1514
		1515	Sends an ext reply to the player.
		1516
		1517	=cut
		1518
		1519	sub ext_reply($$@) {
		1520	my ($self, $id, @msg) = @_;
		1521
		1522	$self->ns->ext_reply ($id, @msg)
		1523	}
		1524
		1525	=item $player->ext_msg ($type, @msg)
		1526
		1527	Sends an ext event to the client.
		1528
		1529	=cut
		1530
		1531	sub ext_msg($$@) {
		1532	my ($self, $type, @msg) = @_;
		1533
		1534	$self->ns->ext_msg ($type, @msg);
		1535	}
		1536
		1537	=head3 cf::region
		1538
		1539	=over 4
		1540
		1541	=cut
		1542
		1543	package cf::region;
		1544
		1545	=item cf::region::find_by_path $path
		1546
		1547	Tries to decuce the likely region for a map knowing only its path.
		1548
		1549	=cut
		1550
		1551	sub find_by_path($) {
		1552	my ($path) = @_;
		1553
		1554	my ($match, $specificity);
		1555
		1556	for my $region (list) {
		1557	if ($region->{match} && $path =~ $region->{match}) {
		1558	($match, $specificity) = ($region, $region->specificity)
		1559	if $region->specificity > $specificity;
		1560	}
		1561	}
		1562
		1563	$match
		1564	}
		1565
		1566	=back
		1567
		1568	=head3 cf::map
		1569
		1570	=over 4
		1571
		1572	=cut
		1573
		1574	package cf::map;
		1575
		1576	use Fcntl;
		1577	use Coro::AIO;
		1578
		1579	use overload
		1580	'""' => \&as_string,
		1581	fallback => 1;
		1582
		1583	our $MAX_RESET = 3600;
		1584	our $DEFAULT_RESET = 3000;
		1585
		1586	sub generate_random_map {
		1587	my ($self, $rmp) = @_;
		1588	# mit "rum" bekleckern, nicht
		1589	$self->_create_random_map (
		1590	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1591	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1592	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1593	$rmp->{exit_on_final_map},
		1594	$rmp->{xsize}, $rmp->{ysize},
		1595	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1596	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1597	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1598	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1599	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1600	(cf::region::find $rmp->{region}), $rmp->{custom}
		1601	)
		1602	}
		1603
		1604	=item cf::map->register ($regex, $prio)
		1605
		1606	Register a handler for the map path matching the given regex at the
		1607	givne priority (higher is better, built-in handlers have priority 0, the
		1608	default).
		1609
		1610	=cut
		1611
870	sub register {	1612	sub register {
		1613	my (undef, $regex, $prio) = @_;
		1614	my $pkg = caller;
		1615
		1616	no strict;
		1617	push @{"$pkg\::ISA"}, __PACKAGE__;
		1618
		1619	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1620	}
		1621
		1622	# also paths starting with '/'
		1623	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1624
		1625	sub thawer_merge {
871	my ($base, $pkg) = @_;	1626	my ($self, $merge) = @_;
872		1627
873	#TODO	1628	# we have to keep some variables in memory intact
874	}	1629	local $self->{path};
		1630	local $self->{load_path};
875		1631
876	sub load_extension {	1632	$self->SUPER::thawer_merge ($merge);
		1633	}
		1634
		1635	sub normalise {
877	my ($path) = @_;	1636	my ($path, $base) = @_;
878		1637
879	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1638	$path = "$path"; # make sure its a string
880	my $base = $1;
881	my $pkg = $1;
882	$pkg =~ s/[^[:word:]]/_/g;
883	$pkg = "ext::$pkg";
884		1639
885	warn "loading '$path' into '$pkg'\n";	1640	$path =~ s/\.map$//;
886		1641
887	open my $fh, "<:utf8", $path	1642	# map plan:
888	or die "$path: $!";	1643	#
		1644	# /! non-realised random map exit (special hack!)
		1645	# {... are special paths that are not being touched
		1646	# ?xxx/... are special absolute paths
		1647	# ?random/... random maps
		1648	# /... normal maps
		1649	# ~user/... per-player map of a specific user
889		1650
890	my $source =	1651	$path =~ s/$PATH_SEP/\//go;
891	"package $pkg; use strict; use utf8;\n"
892	. "#line 1 \"$path\"\n{\n"
893	. (do { local $/; <$fh> })
894	. "\n};\n1";
895		1652
896	eval $source	1653	# treat it as relative path if it starts with
897	or die $@ ? "$path: $@\n"	1654	# something that looks reasonable
898	: "extension disabled.\n";	1655	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1656	$base or Carp::carp "normalise called with relative path and no base: '$path'";
899		1657
900	push @exts, $pkg;	1658	$base =~ s{[^/]+/?$}{};
901	$ext_pkg{$base} = $pkg;	1659	$path = "$base/$path";
902
903	# no strict 'refs';
904	# @{"$pkg\::ISA"} = ext::;
905
906	register $base, $pkg;
907	}
908
909	sub unload_extension {
910	my ($pkg) = @_;
911
912	warn "removing extension $pkg\n";
913
914	# remove hooks
915	#TODO
916	# for my $idx (0 .. $#PLUGIN_EVENT) {
917	# delete $hook[$idx]{$pkg};
918	# }	1660	}
919		1661
920	# remove commands	1662	for ($path) {
921	for my $name (keys %COMMAND) {	1663	redo if s{//}{/};
922	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1664	redo if s{/\.?/}{/};
		1665	redo if s{/[^/]+/\.\./}{/};
		1666	}
923		1667
924	if (@cb) {	1668	$path
925	$COMMAND{$name} = \@cb;	1669	}
		1670
		1671	sub new_from_path {
		1672	my (undef, $path, $base) = @_;
		1673
		1674	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1675
		1676	$path = normalise $path, $base;
		1677
		1678	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1679	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1680	my $self = bless cf::map::new, $pkg;
		1681	$self->{path} = $path; $self->path ($path);
		1682	$self->init; # pass $1 etc.
		1683	return $self;
		1684	}
		1685	}
		1686
		1687	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1688	()
		1689	}
		1690
		1691	sub init {
		1692	my ($self) = @_;
		1693
		1694	$self
		1695	}
		1696
		1697	sub as_string {
		1698	my ($self) = @_;
		1699
		1700	"$self->{path}"
		1701	}
		1702
		1703	# the displayed name, this is a one way mapping
		1704	sub visible_name {
		1705	&as_string
		1706	}
		1707
		1708	# the original (read-only) location
		1709	sub load_path {
		1710	my ($self) = @_;
		1711
		1712	"$MAPDIR/$self->{path}.map"
		1713	}
		1714
		1715	# the temporary/swap location
		1716	sub save_path {
		1717	my ($self) = @_;
		1718
		1719	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1720	"$TMPDIR/$path.map"
		1721	}
		1722
		1723	# the unique path, undef == no special unique path
		1724	sub uniq_path {
		1725	my ($self) = @_;
		1726
		1727	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1728	"$UNIQUEDIR/$path"
		1729	}
		1730
		1731	# and all this just because we cannot iterate over
		1732	# all maps in C++...
		1733	sub change_all_map_light {
		1734	my ($change) = @_;
		1735
		1736	$_->change_map_light ($change)
		1737	for grep $_->outdoor, values %cf::MAP;
		1738	}
		1739
		1740	sub decay_objects {
		1741	my ($self) = @_;
		1742
		1743	return if $self->{deny_reset};
		1744
		1745	$self->do_decay_objects;
		1746	}
		1747
		1748	sub unlink_save {
		1749	my ($self) = @_;
		1750
		1751	utf8::encode (my $save = $self->save_path);
		1752	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1753	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1754	}
		1755
		1756	sub load_header_from($) {
		1757	my ($self, $path) = @_;
		1758
		1759	utf8::encode $path;
		1760	#aio_open $path, O_RDONLY, 0
		1761	# or return;
		1762
		1763	$self->_load_header ($path)
		1764	or return;
		1765
		1766	$self->{load_path} = $path;
		1767
		1768	1
		1769	}
		1770
		1771	sub load_header_orig {
		1772	my ($self) = @_;
		1773
		1774	$self->load_header_from ($self->load_path)
		1775	}
		1776
		1777	sub load_header_temp {
		1778	my ($self) = @_;
		1779
		1780	$self->load_header_from ($self->save_path)
		1781	}
		1782
		1783	sub prepare_temp {
		1784	my ($self) = @_;
		1785
		1786	$self->last_access ((delete $self->{last_access})
		1787	|| $cf::RUNTIME); #d#
		1788	# safety
		1789	$self->{instantiate_time} = $cf::RUNTIME
		1790	if $self->{instantiate_time} > $cf::RUNTIME;
		1791	}
		1792
		1793	sub prepare_orig {
		1794	my ($self) = @_;
		1795
		1796	$self->{load_original} = 1;
		1797	$self->{instantiate_time} = $cf::RUNTIME;
		1798	$self->last_access ($cf::RUNTIME);
		1799	$self->instantiate;
		1800	}
		1801
		1802	sub load_header {
		1803	my ($self) = @_;
		1804
		1805	if ($self->load_header_temp) {
		1806	$self->prepare_temp;
926	} else {	1807	} else {
927	delete $COMMAND{$name};	1808	$self->load_header_orig
928	}	1809	or return;
		1810	$self->prepare_orig;
		1811	}
		1812
		1813	$self->{deny_reset} = 1
		1814	if $self->no_reset;
		1815
		1816	$self->default_region (cf::region::find_by_path $self->{path})
		1817	unless $self->default_region;
		1818
929	}	1819	1
		1820	}
930		1821
931	# remove extcmds	1822	sub find;
932	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1823	sub find {
933	delete $EXTCMD{$name};	1824	my ($path, $origin) = @_;
		1825
		1826	$path = normalise $path, $origin && $origin->path;
		1827
		1828	cf::lock_wait "map_find:$path";
		1829
		1830	$cf::MAP{$path} || do {
		1831	my $guard = cf::lock_acquire "map_find:$path";
		1832	my $map = new_from_path cf::map $path
		1833	or return;
		1834
		1835	$map->{last_save} = $cf::RUNTIME;
		1836
		1837	$map->load_header
		1838	or return;
		1839
		1840	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1841	# doing this can freeze the server in a sync job, obviously
		1842	#$cf::WAIT_FOR_TICK->wait;
		1843	$map->reset;
		1844	undef $guard;
		1845	return find $path;
		1846	}
		1847
		1848	$cf::MAP{$path} = $map
		1849	}
		1850	}
		1851
		1852	sub pre_load { }
		1853	sub post_load { }
		1854
		1855	sub load {
		1856	my ($self) = @_;
		1857
		1858	local $self->{deny_reset} = 1; # loading can take a long time
		1859
		1860	my $path = $self->{path};
		1861
934	}	1862	{
		1863	my $guard1 = cf::lock_acquire "map_data:$path";
		1864	my $guard2 = cf::lock_acquire "map_load:$path";
935		1865
936	if (my $cb = $pkg->can ("unload")) {	1866	return if $self->in_memory != cf::MAP_SWAPPED;
937	eval {	1867
938	$cb->($pkg);	1868	$self->in_memory (cf::MAP_LOADING);
		1869
		1870	$self->alloc;
		1871
		1872	$self->pre_load;
		1873	cf::cede_to_tick;
		1874
		1875	$self->_load_objects ($self->{load_path}, 1)
		1876	or return;
		1877
		1878	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1879	if delete $self->{load_original};
		1880
		1881	if (my $uniq = $self->uniq_path) {
		1882	utf8::encode $uniq;
		1883	if (aio_open $uniq, O_RDONLY, 0) {
		1884	$self->clear_unique_items;
		1885	$self->_load_objects ($uniq, 0);
939	1	1886	}
940	} or warn "$pkg unloaded, but with errors: $@";	1887	}
941	}
942		1888
943	Symbol::delete_package $pkg;	1889	cf::cede_to_tick;
944	}	1890	# now do the right thing for maps
		1891	$self->link_multipart_objects;
		1892	$self->difficulty ($self->estimate_difficulty)
		1893	unless $self->difficulty;
		1894	cf::cede_to_tick;
945		1895
946	sub load_extensions {	1896	unless ($self->{deny_activate}) {
947	for my $ext (<$LIBDIR/*.ext>) {	1897	$self->decay_objects;
948	next unless -r $ext;	1898	$self->fix_auto_apply;
949	eval {	1899	$self->update_buttons;
950	load_extension $ext;	1900	cf::cede_to_tick;
951	1	1901	$self->set_darkness_map;
952	} or warn "$ext not loaded: $@";	1902	cf::cede_to_tick;
953	}	1903	$self->activate;
954	}	1904	}
955		1905
956	#############################################################################	1906	$self->{last_save} = $cf::RUNTIME;
957	# load/save/clean perl data associated with a map	1907	$self->last_access ($cf::RUNTIME);
958		1908
959	*cf::mapsupport::on_clean = sub {	1909	$self->in_memory (cf::MAP_IN_MEMORY);
		1910	}
		1911
		1912	$self->post_load;
		1913	}
		1914
		1915	sub customise_for {
		1916	my ($self, $ob) = @_;
		1917
		1918	return find "~" . $ob->name . "/" . $self->{path}
		1919	if $self->per_player;
		1920
		1921	# return find "?party/" . $ob->name . "/" . $self->{path}
		1922	# if $self->per_party;
		1923
		1924	$self
		1925	}
		1926
		1927	# find and load all maps in the 3x3 area around a map
		1928	sub load_neighbours {
960	my ($map) = @_;	1929	my ($map) = @_;
961		1930
962	my $path = $map->tmpname;	1931	my @neigh; # diagonal neighbours
963	defined $path or return;
964		1932
965	unlink "$path.pst";	1933	for (0 .. 3) {
966	};	1934	my $neigh = $map->tile_path ($_)
		1935	or next;
		1936	$neigh = find $neigh, $map
		1937	or next;
		1938	$neigh->load;
967		1939
968	cf::map->attach (prio => -10000, package => cf::mapsupport::);	1940	push @neigh,
		1941	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1942	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1943	}
969		1944
970	#############################################################################	1945	for (grep defined $_->[0], @neigh) {
971	# load/save perl data associated with player->ob objects	1946	my ($path, $origin) = @$_;
972		1947	my $neigh = find $path, $origin
973	sub all_objects(@) {	1948	or next;
974	@_, map all_objects ($_->inv), @_	1949	$neigh->load;
		1950	}
975	}	1951	}
976		1952
977	# TODO: compatibility cruft, remove when no longer needed	1953	sub find_sync {
978	cf::player->attach (	1954	my ($path, $origin) = @_;
979	on_load => sub {
980	my ($pl, $path) = @_;
981		1955
982	for my $o (all_objects $pl->ob) {	1956	cf::sync_job { find $path, $origin }
983	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1957	}
984	$o->set_ob_key_value ("_perl_data");
985		1958
986	%$o = %{ Storable::thaw pack "H*", $value };	1959	sub do_load_sync {
		1960	my ($map) = @_;
		1961
		1962	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		1963	if $Coro::current == $Coro::main;
		1964
		1965	cf::sync_job { $map->load };
		1966	}
		1967
		1968	our %MAP_PREFETCH;
		1969	our $MAP_PREFETCHER = undef;
		1970
		1971	sub find_async {
		1972	my ($path, $origin, $load) = @_;
		1973
		1974	$path = normalise $path, $origin && $origin->{path};
		1975
		1976	if (my $map = $cf::MAP{$path}) {
		1977	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		1978	}
		1979
		1980	$MAP_PREFETCH{$path} |= $load;
		1981
		1982	$MAP_PREFETCHER ||= cf::async {
		1983	while (%MAP_PREFETCH) {
		1984	while (my ($k, $v) = each %MAP_PREFETCH) {
		1985	if (my $map = find $k) {
		1986	$map->load if $v;
		1987	}
		1988
		1989	delete $MAP_PREFETCH{$k};
987	}	1990	}
988	}	1991	}
		1992	undef $MAP_PREFETCHER;
		1993	};
		1994	$MAP_PREFETCHER->prio (6);
		1995
		1996	()
		1997	}
		1998
		1999	sub save {
		2000	my ($self) = @_;
		2001
		2002	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2003
		2004	$self->{last_save} = $cf::RUNTIME;
		2005
		2006	return unless $self->dirty;
		2007
		2008	my $save = $self->save_path; utf8::encode $save;
		2009	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2010
		2011	$self->{load_path} = $save;
		2012
		2013	return if $self->{deny_save};
		2014
		2015	local $self->{last_access} = $self->last_access;#d#
		2016
		2017	cf::async {
		2018	$_->contr->save for $self->players;
		2019	};
		2020
		2021	if ($uniq) {
		2022	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2023	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2024	} else {
		2025	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
989	},	2026	}
990	);	2027	}
991		2028
992	#############################################################################	2029	sub swap_out {
		2030	my ($self) = @_;
993		2031
994	=head2 CORE EXTENSIONS	2032	# save first because save cedes
		2033	$self->save;
995		2034
996	Functions and methods that extend core crossfire objects.	2035	my $lock = cf::lock_acquire "map_data:$self->{path}";
997		2036
998	=head3 cf::player	2037	return if $self->players;
		2038	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2039	return if $self->{deny_save};
		2040
		2041	$self->clear;
		2042	$self->in_memory (cf::MAP_SWAPPED);
		2043	}
		2044
		2045	sub reset_at {
		2046	my ($self) = @_;
		2047
		2048	# TODO: safety, remove and allow resettable per-player maps
		2049	return 1e99 if $self->{deny_reset};
		2050
		2051	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2052	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2053
		2054	$time + $to
		2055	}
		2056
		2057	sub should_reset {
		2058	my ($self) = @_;
		2059
		2060	$self->reset_at <= $cf::RUNTIME
		2061	}
		2062
		2063	sub reset {
		2064	my ($self) = @_;
		2065
		2066	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2067
		2068	return if $self->players;
		2069
		2070	warn "resetting map ", $self->path;
		2071
		2072	$self->in_memory (cf::MAP_SWAPPED);
		2073
		2074	# need to save uniques path
		2075	unless ($self->{deny_save}) {
		2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2077
		2078	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2079	if $uniq;
		2080	}
		2081
		2082	delete $cf::MAP{$self->path};
		2083
		2084	$self->clear;
		2085
		2086	$_->clear_links_to ($self) for values %cf::MAP;
		2087
		2088	$self->unlink_save;
		2089	$self->destroy;
		2090	}
		2091
		2092	my $nuke_counter = "aaaa";
		2093
		2094	sub nuke {
		2095	my ($self) = @_;
		2096
		2097	{
		2098	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2099
		2100	delete $cf::MAP{$self->path};
		2101
		2102	$self->unlink_save;
		2103
		2104	bless $self, "cf::map";
		2105	delete $self->{deny_reset};
		2106	$self->{deny_save} = 1;
		2107	$self->reset_timeout (1);
		2108	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2109
		2110	$cf::MAP{$self->path} = $self;
		2111	}
		2112
		2113	$self->reset; # polite request, might not happen
		2114	}
		2115
		2116	=item $maps = cf::map::tmp_maps
		2117
		2118	Returns an arrayref with all map paths of currently instantiated and saved
		2119	maps. May block.
		2120
		2121	=cut
		2122
		2123	sub tmp_maps() {
		2124	[
		2125	map {
		2126	utf8::decode $_;
		2127	/\.map$/
		2128	? normalise $_
		2129	: ()
		2130	} @{ aio_readdir $TMPDIR or [] }
		2131	]
		2132	}
		2133
		2134	=item $maps = cf::map::random_maps
		2135
		2136	Returns an arrayref with all map paths of currently instantiated and saved
		2137	random maps. May block.
		2138
		2139	=cut
		2140
		2141	sub random_maps() {
		2142	[
		2143	map {
		2144	utf8::decode $_;
		2145	/\.map$/
		2146	? normalise "?random/$_"
		2147	: ()
		2148	} @{ aio_readdir $RANDOMDIR or [] }
		2149	]
		2150	}
		2151
		2152	=item cf::map::unique_maps
		2153
		2154	Returns an arrayref of paths of all shared maps that have
		2155	instantiated unique items. May block.
		2156
		2157	=cut
		2158
		2159	sub unique_maps() {
		2160	[
		2161	map {
		2162	utf8::decode $_;
		2163	/\.map$/
		2164	? normalise $_
		2165	: ()
		2166	} @{ aio_readdir $UNIQUEDIR or [] }
		2167	]
		2168	}
		2169
		2170	package cf;
		2171
		2172	=back
		2173
		2174	=head3 cf::object
		2175
		2176	=cut
		2177
		2178	package cf::object;
999		2179
1000	=over 4	2180	=over 4
1001		2181
1002	=item cf::player::exists $login	2182	=item $ob->inv_recursive
1003		2183
1004	Returns true when the given account exists.	2184	Returns the inventory of the object _and_ their inventories, recursively.
1005		2185
1006	=cut	2186	=cut
1007		2187
1008	sub cf::player::exists($) {	2188	sub inv_recursive_;
1009	cf::player::find $_[0]	2189	sub inv_recursive_ {
1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2190	map { $_, inv_recursive_ $_->inv } @_
1011	}	2191	}
1012		2192
1013	=item $player->ext_reply ($msgid, $msgtype, %msg)	2193	sub inv_recursive {
1014		2194	inv_recursive_ inv $_[0]
1015	Sends an ext reply to the player.
1016
1017	=cut
1018
1019	sub cf::player::ext_reply($$$%) {
1020	my ($self, $id, %msg) = @_;
1021
1022	$msg{msgid} = $id;
1023
1024	$self->send ("ext " . to_json \%msg);
1025	}	2195	}
		2196
		2197	package cf;
1026		2198
1027	=back	2199	=back
1028		2200
1029	=head3 cf::object::player	2201	=head3 cf::object::player
1030		2202
…		…
1046		2218
1047	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2219	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1048		2220
1049	if ($self->{record_replies}) {	2221	if ($self->{record_replies}) {
1050	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2222	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2223
1051	} else {	2224	} else {
		2225	my $pl = $self->contr;
		2226
		2227	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2228	my $dialog = $pl->{npc_dialog};
		2229	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2230
		2231	} else {
1052	$msg = $npc->name . " says: $msg" if $npc;	2232	$msg = $npc->name . " says: $msg" if $npc;
1053	$self->message ($msg, $flags);	2233	$self->message ($msg, $flags);
		2234	}
1054	}	2235	}
		2236	}
		2237
		2238	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2239
		2240	=cut
		2241
		2242	sub cf::object::send_msg {
		2243	my $pl = shift->contr
		2244	or return;
		2245	$pl->send_msg (@_);
1055	}	2246	}
1056		2247
1057	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1058		2249
1059	Returns wether the given player is authorized to access resource "access"	2250	Returns wether the given player is authorized to access resource "access"
…		…
1068	(ref $cf::CFG{"may_$access"}	2259	(ref $cf::CFG{"may_$access"}
1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2260	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1070	: $cf::CFG{"may_$access"})	2261	: $cf::CFG{"may_$access"})
1071	}	2262	}
1072		2263
		2264	=item $player_object->enter_link
		2265
		2266	Freezes the player and moves him/her to a special map (C<{link}>).
		2267
		2268	The player should be reasonably safe there for short amounts of time. You
		2269	I<MUST> call C<leave_link> as soon as possible, though.
		2270
		2271	Will never block.
		2272
		2273	=item $player_object->leave_link ($map, $x, $y)
		2274
		2275	Moves the player out of the special C<{link}> map onto the specified
		2276	map. If the map is not valid (or omitted), the player will be moved back
		2277	to the location he/she was before the call to C<enter_link>, or, if that
		2278	fails, to the emergency map position.
		2279
		2280	Might block.
		2281
		2282	=cut
		2283
		2284	sub link_map {
		2285	unless ($LINK_MAP) {
		2286	$LINK_MAP = cf::map::find "{link}"
		2287	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2288	$LINK_MAP->load;
		2289	}
		2290
		2291	$LINK_MAP
		2292	}
		2293
		2294	sub cf::object::player::enter_link {
		2295	my ($self) = @_;
		2296
		2297	$self->deactivate_recursive;
		2298
		2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2300
		2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2302	if $self->map && $self->map->{path} ne "{link}";
		2303
		2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2305	}
		2306
		2307	sub cf::object::player::leave_link {
		2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
		2311
		2312	my $link_pos = delete $self->{_link_pos};
		2313
		2314	unless ($map) {
		2315	# restore original map position
		2316	($map, $x, $y) = @{ $link_pos || [] };
		2317	$map = cf::map::find $map;
		2318
		2319	unless ($map) {
		2320	($map, $x, $y) = @$EMERGENCY_POSITION;
		2321	$map = cf::map::find $map
		2322	or die "FATAL: cannot load emergency map\n";
		2323	}
		2324	}
		2325
		2326	($x, $y) = (-1, -1)
		2327	unless (defined $x) && (defined $y);
		2328
		2329	# use -1 or undef as default coordinates, not 0, 0
		2330	($x, $y) = ($map->enter_x, $map->enter_y)
		2331	if $x <=0 && $y <= 0;
		2332
		2333	$map->load;
		2334	$map->load_neighbours;
		2335
		2336	return unless $self->contr->active;
		2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2340	$self->enter_map ($map, $x, $y);
		2341	}
		2342
		2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2344
		2345	Moves the player to the given map-path and coordinates by first freezing
		2346	her, loading and preparing them map, calling the provided $check callback
		2347	that has to return the map if sucecssful, and then unfreezes the player on
		2348	the new (success) or old (failed) map position. In either case, $done will
		2349	be called at the end of this process.
		2350
		2351	=cut
		2352
		2353	our $GOTOGEN;
		2354
		2355	sub cf::object::player::goto {
		2356	my ($self, $path, $x, $y, $check, $done) = @_;
		2357
		2358	# do generation counting so two concurrent goto's will be executed in-order
		2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2360
		2361	$self->enter_link;
		2362
		2363	(async {
		2364	my $map = eval {
		2365	my $map = cf::map::find $path;
		2366
		2367	if ($map) {
		2368	$map = $map->customise_for ($self);
		2369	$map = $check->($map) if $check && $map;
		2370	} else {
		2371	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2372	}
		2373
		2374	$map
		2375	};
		2376
		2377	if ($@) {
		2378	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2379	LOG llevError | logBacktrace, Carp::longmess $@;
		2380	}
		2381
		2382	if ($gen == $self->{_goto_generation}) {
		2383	delete $self->{_goto_generation};
		2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
		2388	})->prio (1);
		2389	}
		2390
		2391	=item $player_object->enter_exit ($exit_object)
		2392
		2393	=cut
		2394
		2395	sub parse_random_map_params {
		2396	my ($spec) = @_;
		2397
		2398	my $rmp = { # defaults
		2399	xsize => (cf::rndm 15, 40),
		2400	ysize => (cf::rndm 15, 40),
		2401	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2402	#layout => string,
		2403	};
		2404
		2405	for (split /\n/, $spec) {
		2406	my ($k, $v) = split /\s+/, $_, 2;
		2407
		2408	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2409	}
		2410
		2411	$rmp
		2412	}
		2413
		2414	sub prepare_random_map {
		2415	my ($exit) = @_;
		2416
		2417	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2418
		2419	# all this does is basically replace the /! path by
		2420	# a new random map path (?random/...) with a seed
		2421	# that depends on the exit object
		2422
		2423	my $rmp = parse_random_map_params $exit->msg;
		2424
		2425	if ($exit->map) {
		2426	$rmp->{region} = $exit->region->name;
		2427	$rmp->{origin_map} = $exit->map->path;
		2428	$rmp->{origin_x} = $exit->x;
		2429	$rmp->{origin_y} = $exit->y;
		2430	}
		2431
		2432	$rmp->{random_seed} ||= $exit->random_seed;
		2433
		2434	my $data = cf::to_json $rmp;
		2435	my $md5 = Digest::MD5::md5_hex $data;
		2436	my $meta = "$RANDOMDIR/$md5.meta";
		2437
		2438	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2439	aio_write $fh, 0, (length $data), $data, 0;
		2440	undef $fh;
		2441	aio_rename "$meta~", $meta;
		2442
		2443	$exit->slaying ("?random/$md5");
		2444	$exit->msg (undef);
		2445	}
		2446	}
		2447
		2448	sub cf::object::player::enter_exit {
		2449	my ($self, $exit) = @_;
		2450
		2451	return unless $self->type == cf::PLAYER;
		2452
		2453	if ($exit->slaying eq "/!") {
		2454	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2455	# the problem is that $exit might not survive long enough
		2456	# so it needs to be done right now, right here
		2457	cf::sync_job { prepare_random_map $exit };
		2458	}
		2459
		2460	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2461	my $hp = $exit->stats->hp;
		2462	my $sp = $exit->stats->sp;
		2463
		2464	$self->enter_link;
		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
		2469
		2470	(async {
		2471	$self->deactivate_recursive; # just to be sure
		2472	unless (eval {
		2473	$self->goto ($slaying, $hp, $sp);
		2474
		2475	1;
		2476	}) {
		2477	$self->message ("Something went wrong deep within the crossfire server. "
		2478	. "I'll try to bring you back to the map you were before. "
		2479	. "Please report this to the dungeon master!",
		2480	cf::NDI_UNIQUE | cf::NDI_RED);
		2481
		2482	warn "ERROR in enter_exit: $@";
		2483	$self->leave_link;
		2484	}
		2485	})->prio (1);
		2486	}
		2487
1073	=head3 cf::client	2488	=head3 cf::client
1074		2489
1075	=over 4	2490	=over 4
1076		2491
1077	=item $client->send_drawinfo ($text, $flags)	2492	=item $client->send_drawinfo ($text, $flags)
…		…
1083		2498
1084	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
1085	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
1086		2501
1087	utf8::encode $text;	2502	utf8::encode $text;
1088	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1089	}	2504	}
1090		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	our %CHANNEL = (
		2516	"c/identify" => {
		2517	id => "identify",
		2518	title => "Identify",
		2519	reply => undef,
		2520	tooltip => "Items recently identified",
		2521	},
		2522	"c/examine" => {
		2523	id => "examine",
		2524	title => "Examine",
		2525	reply => undef,
		2526	tooltip => "Signs and other items you examined",
		2527	},
		2528	);
		2529
		2530	sub cf::client::send_msg {
		2531	my ($self, $channel, $msg, $color, @extra) = @_;
		2532
		2533	$msg = $self->pl->expand_cfpod ($msg);
		2534
		2535	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2536
		2537	# check predefined channels, for the benefit of C
		2538	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2539
		2540	if (ref $channel) {
		2541	# send meta info to client, if not yet sent
		2542	unless (exists $self->{channel}{$channel->{id}}) {
		2543	$self->{channel}{$channel->{id}} = $channel;
		2544	$self->ext_msg (channel_info => $channel)
		2545	if $self->can_msg;
		2546	}
		2547
		2548	$channel = $channel->{id};
		2549	}
		2550
		2551	return unless @extra || length $msg;
		2552
		2553	if ($self->can_msg) {
		2554	# default colour, mask it out
		2555	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2556	if $color & cf::NDI_DEF;
		2557
		2558	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2559	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2560	} else {
		2561	if ($color >= 0) {
		2562	# replace some tags by gcfclient-compatible ones
		2563	for ($msg) {
		2564	1 while
		2565	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2566	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2567	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2568	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2569	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2570	}
		2571
		2572	$color &= cf::NDI_COLOR_MASK;
		2573
		2574	utf8::encode $msg;
		2575
		2576	if (0 && $msg =~ /\[/) {
		2577	# COMMAND/INFO
		2578	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2579	} else {
		2580	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2581	$self->send_packet ("drawinfo $color $msg")
		2582	}
		2583	}
		2584	}
		2585	}
		2586
		2587	=item $client->ext_msg ($type, @msg)
		2588
		2589	Sends an ext event to the client.
		2590
		2591	=cut
		2592
		2593	sub cf::client::ext_msg($$@) {
		2594	my ($self, $type, @msg) = @_;
		2595
		2596	if ($self->extcmd == 2) {
		2597	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2598	} elsif ($self->extcmd == 1) { # TODO: remove
		2599	push @msg, msgtype => "event_$type";
		2600	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2601	}
		2602	}
		2603
		2604	=item $client->ext_reply ($msgid, @msg)
		2605
		2606	Sends an ext reply to the client.
		2607
		2608	=cut
		2609
		2610	sub cf::client::ext_reply($$@) {
		2611	my ($self, $id, @msg) = @_;
		2612
		2613	if ($self->extcmd == 2) {
		2614	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2615	} elsif ($self->extcmd == 1) {
		2616	#TODO: version 1, remove
		2617	unshift @msg, msgtype => "reply", msgid => $id;
		2618	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2619	}
		2620	}
1091		2621
1092	=item $success = $client->query ($flags, "text", \&cb)	2622	=item $success = $client->query ($flags, "text", \&cb)
1093		2623
1094	Queues a query to the client, calling the given callback with	2624	Queues a query to the client, calling the given callback with
1095	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2625	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1096	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2626	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1097		2627
1098	Queries can fail, so check the return code. Or don't, as queries will become	2628	Queries can fail, so check the return code. Or don't, as queries will
1099	reliable at some point in the future.	2629	become reliable at some point in the future.
1100		2630
1101	=cut	2631	=cut
1102		2632
1103	sub cf::client::query {	2633	sub cf::client::query {
1104	my ($self, $flags, $text, $cb) = @_;	2634	my ($self, $flags, $text, $cb) = @_;
…		…
1112	utf8::encode $text;	2642	utf8::encode $text;
1113	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2643	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1114		2644
1115	$self->send_packet ($self->{query_queue}[0][0])	2645	$self->send_packet ($self->{query_queue}[0][0])
1116	if @{ $self->{query_queue} } == 1;	2646	if @{ $self->{query_queue} } == 1;
		2647
		2648	1
1117	}	2649	}
1118		2650
1119	cf::client->attach (	2651	cf::client->attach (
		2652	on_connect => sub {
		2653	my ($ns) = @_;
		2654
		2655	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2656	},
1120	on_reply => sub {	2657	on_reply => sub {
1121	my ($ns, $msg) = @_;	2658	my ($ns, $msg) = @_;
1122		2659
1123	# this weird shuffling is so that direct followup queries	2660	# this weird shuffling is so that direct followup queries
1124	# get handled first	2661	# get handled first
1125	my $queue = delete $ns->{query_queue};	2662	my $queue = delete $ns->{query_queue}
		2663	or return; # be conservative, not sure how that can happen, but we saw a crash here
1126		2664
1127	(shift @$queue)->[1]->($msg);	2665	(shift @$queue)->[1]->($msg);
		2666	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1128		2667
1129	push @{ $ns->{query_queue} }, @$queue;	2668	push @{ $ns->{query_queue} }, @$queue;
1130		2669
1131	if (@{ $ns->{query_queue} } == @$queue) {	2670	if (@{ $ns->{query_queue} } == @$queue) {
1132	if (@$queue) {	2671	if (@$queue) {
…		…
1134	} else {	2673	} else {
1135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2674	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1136	}	2675	}
1137	}	2676	}
1138	},	2677	},
		2678	on_exticmd => sub {
		2679	my ($ns, $buf) = @_;
		2680
		2681	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2682
		2683	if (ref $msg) {
		2684	my ($type, $reply, @payload) =
		2685	"ARRAY" eq ref $msg
		2686	? @$msg
		2687	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2688
		2689	my @reply;
		2690
		2691	if (my $cb = $EXTICMD{$type}) {
		2692	@reply = $cb->($ns, @payload);
		2693	}
		2694
		2695	$ns->ext_reply ($reply, @reply)
		2696	if $reply;
		2697
		2698	} else {
		2699	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2700	}
		2701
		2702	cf::override;
		2703	},
1139	);	2704	);
1140		2705
1141	=item $client->coro (\&cb)	2706	=item $client->async (\&cb)
1142		2707
1143	Create a new coroutine, running the specified callback. The coroutine will	2708	Create a new coroutine, running the specified callback. The coroutine will
1144	be automatically cancelled when the client gets destroyed (e.g. on logout,	2709	be automatically cancelled when the client gets destroyed (e.g. on logout,
1145	or loss of connection).	2710	or loss of connection).
1146		2711
1147	=cut	2712	=cut
1148		2713
1149	sub cf::client::coro {	2714	sub cf::client::async {
1150	my ($self, $cb) = @_;	2715	my ($self, $cb) = @_;
1151		2716
1152	my $coro; $coro = async {	2717	my $coro = &Coro::async ($cb);
1153	eval {
1154	$cb->();
1155	};
1156	warn $@ if $@;
1157	};
1158		2718
1159	$coro->on_destroy (sub {	2719	$coro->on_destroy (sub {
1160	delete $self->{_coro}{$coro+0};	2720	delete $self->{_coro}{$coro+0};
1161	});	2721	});
1162		2722
…		…
1189	our $safe = new Safe "safe";	2749	our $safe = new Safe "safe";
1190	our $safe_hole = new Safe::Hole;	2750	our $safe_hole = new Safe::Hole;
1191		2751
1192	$SIG{FPE} = 'IGNORE';	2752	$SIG{FPE} = 'IGNORE';
1193		2753
1194	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2754	$safe->permit_only (Opcode::opset qw(
		2755	:base_core :base_mem :base_orig :base_math
		2756	grepstart grepwhile mapstart mapwhile
		2757	sort time
		2758	));
1195		2759
1196	# here we export the classes and methods available to script code	2760	# here we export the classes and methods available to script code
1197		2761
1198	=pod	2762	=pod
1199		2763
1200	The following fucntions and emthods are available within a safe environment:	2764	The following functions and methods are available within a safe environment:
1201		2765
1202	cf::object contr pay_amount pay_player map	2766	cf::object
		2767	contr pay_amount pay_player map x y force_find force_add
		2768	insert remove name archname title slaying race decrease_ob_nr
		2769
1203	cf::object::player player	2770	cf::object::player
1204	cf::player peaceful	2771	player
1205	cf::map trigger	2772
		2773	cf::player
		2774	peaceful
		2775
		2776	cf::map
		2777	trigger
1206		2778
1207	=cut	2779	=cut
1208		2780
1209	for (	2781	for (
1210	["cf::object" => qw(contr pay_amount pay_player map)],	2782	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2783	insert remove inv name archname title slaying race
		2784	decrease_ob_nr)],
1211	["cf::object::player" => qw(player)],	2785	["cf::object::player" => qw(player)],
1212	["cf::player" => qw(peaceful)],	2786	["cf::player" => qw(peaceful)],
1213	["cf::map" => qw(trigger)],	2787	["cf::map" => qw(trigger)],
1214	) {	2788	) {
1215	no strict 'refs';	2789	no strict 'refs';
…		…
1286	=back	2860	=back
1287		2861
1288	=cut	2862	=cut
1289		2863
1290	#############################################################################	2864	#############################################################################
		2865	# the server's init and main functions
1291		2866
1292	=head2 EXTENSION DATABASE SUPPORT	2867	sub load_facedata($) {
		2868	my ($path) = @_;
1293		2869
1294	Crossfire maintains a very simple database for extension use. It can	2870	# HACK to clear player env face cache, we need some signal framework
1295	currently store anything that can be serialised using Storable, which	2871	# for this (global event?)
1296	excludes objects.	2872	%ext::player_env::MUSIC_FACE_CACHE = ();
1297		2873
1298	The parameter C<$family> should best start with the name of the extension	2874	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1299	using it, it should be unique.
1300		2875
1301	=over 4	2876	warn "loading facedata from $path\n";
1302		2877
1303	=item $hashref = cf::db_get $family	2878	my $facedata;
		2879	0 < aio_load $path, $facedata
		2880	or die "$path: $!";
1304		2881
1305	Return a hashref for use by the extension C<$family>, which can be	2882	$facedata = Coro::Storable::thaw $facedata;
1306	modified. After modifications, you have to call C<cf::db_dirty> or
1307	C<cf::db_sync>.
1308		2883
1309	=item $value = cf::db_get $family => $key	2884	$facedata->{version} == 2
		2885	or cf::cleanup "$path: version mismatch, cannot proceed.";
1310		2886
1311	Returns a single value from the database	2887	# patch in the exptable
1312		2888	$facedata->{resource}{"res/exp_table"} = {
1313	=item cf::db_put $family => $hashref	2889	type => FT_RSRC,
1314		2890	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1315	Stores the given family hashref into the database. Updates are delayed, if
1316	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1317
1318	=item cf::db_put $family => $key => $value
1319
1320	Stores the given C<$value> in the family hash. Updates are delayed, if you
1321	want the data to be synced to disk immediately, use C<cf::db_sync>.
1322
1323	=item cf::db_dirty
1324
1325	Marks the database as dirty, to be updated at a later time.
1326
1327	=item cf::db_sync
1328
1329	Immediately write the database to disk I<if it is dirty>.
1330
1331	=cut
1332
1333	our $DB;
1334
1335	{
1336	my $path = cf::localdir . "/database.pst";
1337
1338	sub db_load() {
1339	warn "loading database $path\n";#d# remove later
1340	$DB = stat $path ? Storable::retrieve $path : { };
1341	}
1342
1343	my $pid;
1344
1345	sub db_save() {
1346	warn "saving database $path\n";#d# remove later
1347	waitpid $pid, 0 if $pid;
1348	if (0 == ($pid = fork)) {
1349	$DB->{_meta}{version} = 1;
1350	Storable::nstore $DB, "$path~";
1351	rename "$path~", $path;
1352	cf::_exit 0 if defined $pid;
1353	}
1354	}
1355
1356	my $dirty;
1357
1358	sub db_sync() {
1359	db_save if $dirty;
1360	undef $dirty;
1361	}
1362
1363	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1364	db_sync;
1365	});	2891	};
		2892	cf::cede_to_tick;
1366		2893
1367	sub db_dirty() {
1368	$dirty = 1;
1369	$idle->start;
1370	}	2894	{
		2895	my $faces = $facedata->{faceinfo};
1371		2896
1372	sub db_get($;$) {	2897	while (my ($face, $info) = each %$faces) {
1373	@_ >= 2	2898	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1374	? $DB->{$_[0]}{$_[1]}	2899	cf::face::set_visibility $idx, $info->{visibility};
1375	: ($DB->{$_[0]} ||= { })	2900	cf::face::set_magicmap $idx, $info->{magicmap};
1376	}	2901	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2902	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1377		2903
1378	sub db_put($$;$) {	2904	cf::cede_to_tick;
1379	if (@_ >= 3) {
1380	$DB->{$_[0]}{$_[1]} = $_[2];
1381	} else {
1382	$DB->{$_[0]} = $_[1];
1383	}
1384	db_dirty;
1385	}
1386
1387	cf::global->attach (
1388	prio => 10000,
1389	on_cleanup => sub {
1390	db_sync;
1391	},	2905	}
1392	);
1393	}
1394		2906
1395	#############################################################################	2907	while (my ($face, $info) = each %$faces) {
1396	# the server's main()	2908	next unless $info->{smooth};
		2909	my $idx = cf::face::find $face
		2910	or next;
		2911	if (my $smooth = cf::face::find $info->{smooth}) {
		2912	cf::face::set_smooth $idx, $smooth;
		2913	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2914	} else {
		2915	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2916	}
1397		2917
1398	sub cfg_load {	2918	cf::cede_to_tick;
		2919	}
		2920	}
		2921
		2922	{
		2923	my $anims = $facedata->{animinfo};
		2924
		2925	while (my ($anim, $info) = each %$anims) {
		2926	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2927	cf::cede_to_tick;
		2928	}
		2929
		2930	cf::anim::invalidate_all; # d'oh
		2931	}
		2932
		2933	{
		2934	# TODO: for gcfclient pleasure, we should give resources
		2935	# that gcfclient doesn't grok a >10000 face index.
		2936	my $res = $facedata->{resource};
		2937
		2938	my $soundconf = delete $res->{"res/sound.conf"};
		2939
		2940	while (my ($name, $info) = each %$res) {
		2941	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2942	my $data;
		2943
		2944	if ($info->{type} & 1) {
		2945	# prepend meta info
		2946
		2947	my $meta = $enc->encode ({
		2948	name => $name,
		2949	%{ $info->{meta} || {} },
		2950	});
		2951
		2952	$data = pack "(w/a*)*", $meta, $info->{data};
		2953	} else {
		2954	$data = $info->{data};
		2955	}
		2956
		2957	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2958	cf::face::set_type $idx, $info->{type};
		2959
		2960	cf::cede_to_tick;
		2961	}
		2962
		2963	if ($soundconf) {
		2964	$soundconf = $enc->decode (delete $soundconf->{data});
		2965
		2966	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2967	my $sound = $soundconf->{compat}[$_]
		2968	or next;
		2969
		2970	my $face = cf::face::find "sound/$sound->[1]";
		2971	cf::sound::set $sound->[0] => $face;
		2972	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2973	}
		2974
		2975	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2976	my $face = cf::face::find "sound/$v";
		2977	cf::sound::set $k => $face;
		2978	}
		2979	}
		2980	}
		2981
		2982	1
		2983	}
		2984
		2985	register_exticmd fx_want => sub {
		2986	my ($ns, $want) = @_;
		2987
		2988	while (my ($k, $v) = each %$want) {
		2989	$ns->fx_want ($k, $v);
		2990	}
		2991	};
		2992
		2993	sub reload_regions {
		2994	# HACK to clear player env face cache, we need some signal framework
		2995	# for this (global event?)
		2996	%ext::player_env::MUSIC_FACE_CACHE = ();
		2997
		2998	load_resource_file "$MAPDIR/regions"
		2999	or die "unable to load regions file\n";
		3000
		3001	for (cf::region::list) {
		3002	$_->{match} = qr/$_->{match}/
		3003	if exists $_->{match};
		3004	}
		3005	}
		3006
		3007	sub reload_facedata {
		3008	load_facedata "$DATADIR/facedata"
		3009	or die "unable to load facedata\n";
		3010	}
		3011
		3012	sub reload_archetypes {
		3013	load_resource_file "$DATADIR/archetypes"
		3014	or die "unable to load archetypes\n";
		3015	#d# NEED to laod twice to resolve forward references
		3016	# this really needs to be done in an extra post-pass
		3017	# (which needs to be synchronous, so solve it differently)
		3018	load_resource_file "$DATADIR/archetypes"
		3019	or die "unable to load archetypes\n";
		3020	}
		3021
		3022	sub reload_treasures {
		3023	load_resource_file "$DATADIR/treasures"
		3024	or die "unable to load treasurelists\n";
		3025	}
		3026
		3027	sub reload_resources {
		3028	warn "reloading resource files...\n";
		3029
		3030	reload_regions;
		3031	reload_facedata;
		3032	#reload_archetypes;#d#
		3033	reload_archetypes;
		3034	reload_treasures;
		3035
		3036	warn "finished reloading resource files\n";
		3037	}
		3038
		3039	sub init {
		3040	reload_resources;
		3041	}
		3042
		3043	sub reload_config {
1399	open my $fh, "<:utf8", cf::confdir . "/config"	3044	open my $fh, "<:utf8", "$CONFDIR/config"
1400	or return;	3045	or return;
1401		3046
1402	local $/;	3047	local $/;
1403	*CFG = YAML::Syck::Load <$fh>;	3048	*CFG = YAML::Syck::Load <$fh>;
		3049
		3050	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3051
		3052	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3053	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3054
		3055	if (exists $CFG{mlockall}) {
		3056	eval {
		3057	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3058	and die "WARNING: m(un)lockall failed: $!\n";
		3059	};
		3060	warn $@ if $@;
		3061	}
1404	}	3062	}
1405		3063
1406	sub main {	3064	sub main {
1407	# we must not ever block the main coroutine	3065	# we must not ever block the main coroutine
1408	local $Coro::idle = sub {	3066	local $Coro::idle = sub {
1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3067	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1410	(Coro::unblock_sub {	3068	(async {
1411	Event::one_event;	3069	Event::one_event;
1412	})->();	3070	})->prio (Coro::PRIO_MAX);
1413	};	3071	};
1414		3072
1415	cfg_load;	3073	reload_config;
1416	db_load;	3074	db_init;
1417	load_extensions;	3075	load_extensions;
		3076
		3077	$TICK_WATCHER->start;
1418	Event::loop;	3078	Event::loop;
1419	}	3079	}
1420		3080
1421	#############################################################################	3081	#############################################################################
1422	# initialisation	3082	# initialisation and cleanup
1423		3083
1424	sub perl_reload() {	3084	# install some emergency cleanup handlers
		3085	BEGIN {
		3086	for my $signal (qw(INT HUP TERM)) {
		3087	Event->signal (
		3088	reentrant => 0,
		3089	data => WF_AUTOCANCEL,
		3090	signal => $signal,
		3091	prio => 0,
		3092	cb => sub {
		3093	cf::cleanup "SIG$signal";
		3094	},
		3095	);
		3096	}
		3097	}
		3098
		3099	sub write_runtime {
		3100	my $runtime = "$LOCALDIR/runtime";
		3101
		3102	# first touch the runtime file to show we are still running:
		3103	# the fsync below can take a very very long time.
		3104
		3105	IO::AIO::aio_utime $runtime, undef, undef;
		3106
		3107	my $guard = cf::lock_acquire "write_runtime";
		3108
		3109	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3110	or return;
		3111
		3112	my $value = $cf::RUNTIME + 90 + 10;
		3113	# 10 is the runtime save interval, for a monotonic clock
		3114	# 60 allows for the watchdog to kill the server.
		3115
		3116	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3117	and return;
		3118
		3119	# always fsync - this file is important
		3120	aio_fsync $fh
		3121	and return;
		3122
		3123	# touch it again to show we are up-to-date
		3124	aio_utime $fh, undef, undef;
		3125
		3126	close $fh
		3127	or return;
		3128
		3129	aio_rename "$runtime~", $runtime
		3130	and return;
		3131
		3132	warn "runtime file written.\n";
		3133
		3134	1
		3135	}
		3136
		3137	sub emergency_save() {
		3138	my $freeze_guard = cf::freeze_mainloop;
		3139
		3140	warn "enter emergency perl save\n";
		3141
		3142	cf::sync_job {
		3143	# use a peculiar iteration method to avoid tripping on perl
		3144	# refcount bugs in for. also avoids problems with players
		3145	# and maps saved/destroyed asynchronously.
		3146	warn "begin emergency player save\n";
		3147	for my $login (keys %cf::PLAYER) {
		3148	my $pl = $cf::PLAYER{$login} or next;
		3149	$pl->valid or next;
		3150	$pl->save;
		3151	}
		3152	warn "end emergency player save\n";
		3153
		3154	warn "begin emergency map save\n";
		3155	for my $path (keys %cf::MAP) {
		3156	my $map = $cf::MAP{$path} or next;
		3157	$map->valid or next;
		3158	$map->save;
		3159	}
		3160	warn "end emergency map save\n";
		3161
		3162	warn "begin emergency database checkpoint\n";
		3163	BDB::db_env_txn_checkpoint $DB_ENV;
		3164	warn "end emergency database checkpoint\n";
		3165	};
		3166
		3167	warn "leave emergency perl save\n";
		3168	}
		3169
		3170	sub post_cleanup {
		3171	my ($make_core) = @_;
		3172
		3173	warn Carp::longmess "post_cleanup backtrace"
		3174	if $make_core;
		3175	}
		3176
		3177	sub do_reload_perl() {
1425	# can/must only be called in main	3178	# can/must only be called in main
1426	if ($Coro::current != $Coro::main) {	3179	if ($Coro::current != $Coro::main) {
1427	warn "can only reload from main coroutine\n";	3180	warn "can only reload from main coroutine";
1428	return;	3181	return;
1429	}	3182	}
1430		3183
1431	warn "reloading...";	3184	warn "reloading...";
1432		3185
1433	local $FREEZE = 1;	3186	warn "entering sync_job";
		3187
		3188	cf::sync_job {
		3189	cf::write_runtime; # external watchdog should not bark
1434	cf::emergency_save;	3190	cf::emergency_save;
		3191	cf::write_runtime; # external watchdog should not bark
1435		3192
1436	eval {	3193	warn "syncing database to disk";
		3194	BDB::db_env_txn_checkpoint $DB_ENV;
		3195
1437	# if anything goes wrong in here, we should simply crash as we already saved	3196	# if anything goes wrong in here, we should simply crash as we already saved
1438		3197
1439	# cancel all watchers	3198	warn "cancelling all WF_AUTOCANCEL watchers";
1440	for (Event::all_watchers) {	3199	for (Event::all_watchers) {
1441	$_->cancel if $_->data & WF_AUTOCANCEL;	3200	$_->cancel if $_->data & WF_AUTOCANCEL;
1442	}	3201	}
1443		3202
		3203	warn "flushing outstanding aio requests";
		3204	for (;;) {
		3205	BDB::flush;
		3206	IO::AIO::flush;
		3207	Coro::cede;
		3208	last unless IO::AIO::nreqs || BDB::nreqs;
		3209	warn "iterate...";
		3210	}
		3211
		3212	++$RELOAD;
		3213
1444	# cancel all extension coros	3214	warn "cancelling all extension coros";
1445	$_->cancel for values %EXT_CORO;	3215	$_->cancel for values %EXT_CORO;
1446	%EXT_CORO = ();	3216	%EXT_CORO = ();
1447		3217
1448	# unload all extensions	3218	warn "removing commands";
1449	for (@exts) {	3219	%COMMAND = ();
		3220
		3221	warn "removing ext/exti commands";
		3222	%EXTCMD = ();
		3223	%EXTICMD = ();
		3224
		3225	warn "unloading/nuking all extensions";
		3226	for my $pkg (@EXTS) {
1450	warn "unloading <$_>";	3227	warn "... unloading $pkg";
1451	unload_extension $_;	3228
		3229	if (my $cb = $pkg->can ("unload")) {
		3230	eval {
		3231	$cb->($pkg);
		3232	1
		3233	} or warn "$pkg unloaded, but with errors: $@";
1452	}	3234	}
1453		3235
		3236	warn "... nuking $pkg";
		3237	Symbol::delete_package $pkg;
		3238	}
		3239
1454	# unload all modules loaded from $LIBDIR	3240	warn "unloading all perl modules loaded from $LIBDIR";
1455	while (my ($k, $v) = each %INC) {	3241	while (my ($k, $v) = each %INC) {
1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3242	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1457		3243
1458	warn "removing <$k>";	3244	warn "... unloading $k";
1459	delete $INC{$k};	3245	delete $INC{$k};
1460		3246
1461	$k =~ s/\.pm$//;	3247	$k =~ s/\.pm$//;
1462	$k =~ s/\//::/g;	3248	$k =~ s/\//::/g;
1463		3249
…		…
1466	}	3252	}
1467		3253
1468	Symbol::delete_package $k;	3254	Symbol::delete_package $k;
1469	}	3255	}
1470		3256
1471	# sync database to disk
1472	cf::db_sync;
1473	IO::AIO::flush;
1474
1475	# get rid of safe::, as good as possible	3257	warn "getting rid of safe::, as good as possible";
1476	Symbol::delete_package "safe::$_"	3258	Symbol::delete_package "safe::$_"
1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3259	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1478		3260
1479	# remove register_script_function callbacks
1480	# TODO
1481
1482	# unload cf.pm "a bit"	3261	warn "unloading cf.pm \"a bit\"";
1483	delete $INC{"cf.pm"};	3262	delete $INC{"cf.pm"};
		3263	delete $INC{"cf/pod.pm"};
1484		3264
1485	# don't, removes xs symbols, too,	3265	# don't, removes xs symbols, too,
1486	# and global variables created in xs	3266	# and global variables created in xs
1487	#Symbol::delete_package __PACKAGE__;	3267	#Symbol::delete_package __PACKAGE__;
1488		3268
1489	# reload cf.pm	3269	warn "unload completed, starting to reload now";
		3270
1490	warn "reloading cf.pm";	3271	warn "reloading cf.pm";
1491	require cf;	3272	require cf;
1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3273	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1493		3274
1494	# load config and database again	3275	warn "loading config and database again";
1495	cf::cfg_load;	3276	cf::reload_config;
1496	cf::db_load;
1497		3277
1498	# load extensions
1499	warn "load extensions";	3278	warn "loading extensions";
1500	cf::load_extensions;	3279	cf::load_extensions;
1501		3280
1502	# reattach attachments to objects	3281	warn "reattaching attachments to objects/players";
1503	warn "reattach";	3282	_global_reattach; # objects, sockets
1504	_global_reattach;	3283	warn "reattaching attachments to maps";
1505	};	3284	reattach $_ for values %MAP;
		3285	warn "reattaching attachments to players";
		3286	reattach $_ for values %PLAYER;
1506		3287
1507	if ($@) {	3288	warn "leaving sync_job";
		3289
		3290	1
		3291	} or do {
1508	warn $@;	3292	warn $@;
1509	warn "error while reloading, exiting.";	3293	warn "error while reloading, exiting.";
1510	exit 1;	3294	exit 1;
1511	}	3295	};
1512		3296
1513	warn "reloaded successfully";	3297	warn "reloaded";
1514	};	3298	};
1515		3299
1516	#############################################################################	3300	our $RELOAD_WATCHER; # used only during reload
1517		3301
1518	unless ($LINK_MAP) {	3302	sub reload_perl() {
1519	$LINK_MAP = cf::map::new;	3303	# doing reload synchronously and two reloads happen back-to-back,
		3304	# coro crashes during coro_state_free->destroy here.
1520		3305
1521	$LINK_MAP->width (41);	3306	$RELOAD_WATCHER ||= Event->timer (
1522	$LINK_MAP->height (41);	3307	reentrant => 0,
1523	$LINK_MAP->alloc;	3308	after => 0,
1524	$LINK_MAP->path ("{link}");	3309	data => WF_AUTOCANCEL,
1525	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";	3310	cb => sub {
1526	$LINK_MAP->in_memory (MAP_IN_MEMORY);	3311	do_reload_perl;
		3312	undef $RELOAD_WATCHER;
		3313	},
		3314	);
1527	}	3315	}
1528		3316
1529	register "<global>", __PACKAGE__;
1530
1531	register_command "perl-reload" => sub {	3317	register_command "reload" => sub {
1532	my ($who, $arg) = @_;	3318	my ($who, $arg) = @_;
1533		3319
1534	if ($who->flag (FLAG_WIZ)) {	3320	if ($who->flag (FLAG_WIZ)) {
1535	$who->message ("start of reload.");
1536	perl_reload;
1537	$who->message ("end of reload.");	3321	$who->message ("reloading server.");
		3322	async { reload_perl };
1538	}	3323	}
1539	};	3324	};
1540		3325
1541	unshift @INC, $LIBDIR;	3326	unshift @INC, $LIBDIR;
1542		3327
		3328	my $bug_warning = 0;
		3329
		3330	our @WAIT_FOR_TICK;
		3331	our @WAIT_FOR_TICK_BEGIN;
		3332
		3333	sub wait_for_tick {
		3334	return unless $TICK_WATCHER->is_active;
		3335	return if $Coro::current == $Coro::main;
		3336
		3337	my $signal = new Coro::Signal;
		3338	push @WAIT_FOR_TICK, $signal;
		3339	$signal->wait;
		3340	}
		3341
		3342	sub wait_for_tick_begin {
		3343	return unless $TICK_WATCHER->is_active;
		3344	return if $Coro::current == $Coro::main;
		3345
		3346	my $signal = new Coro::Signal;
		3347	push @WAIT_FOR_TICK_BEGIN, $signal;
		3348	$signal->wait;
		3349	}
		3350
		3351	my $min = 1e6;#d#
		3352	my $avg = 10;
1543	$TICK_WATCHER = Event->timer (	3353	$TICK_WATCHER = Event->timer (
1544	reentrant => 0,	3354	reentrant => 0,
		3355	parked => 1,
1545	prio => 0,	3356	prio => 0,
1546	at => $NEXT_TICK || $TICK,	3357	at => $NEXT_TICK || $TICK,
1547	data => WF_AUTOCANCEL,	3358	data => WF_AUTOCANCEL,
1548	cb => sub {	3359	cb => sub {
1549	unless ($FREEZE) {	3360	if ($Coro::current != $Coro::main) {
		3361	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3362	unless ++$bug_warning > 10;
		3363	return;
		3364	}
		3365
		3366	$NOW = $tick_start = Event::time;
		3367
1550	cf::server_tick; # one server iteration	3368	cf::server_tick; # one server iteration
1551	$RUNTIME += $TICK;	3369
		3370	0 && sync_job {#d#
		3371	for(1..10) {
		3372	my $t = Event::time;
		3373	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3374	or die;
		3375
		3376	$map->width (50);
		3377	$map->height (50);
		3378	$map->alloc;
		3379	$map->_load_objects ("/tmp/x.map", 1);
		3380	my $t = Event::time - $t;
		3381
		3382	#next unless $t < 0.0013;#d#
		3383	if ($t < $min) {
		3384	$min = $t;
		3385	}
		3386	$avg = $avg * 0.99 + $t * 0.01;
		3387	}
		3388	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3389	exit 0;
		3390	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1552	}	3391	};
1553		3392
		3393	$RUNTIME += $TICK;
1554	$NEXT_TICK += $TICK;	3394	$NEXT_TICK += $TICK;
1555		3395
		3396	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3397	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3398	Coro::async_pool {
		3399	write_runtime
		3400	or warn "ERROR: unable to write runtime file: $!";
		3401	};
		3402	}
		3403
		3404	# my $AFTER = Event::time;
		3405	# warn $AFTER - $NOW;#d#
		3406
		3407	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3408	$sig->send;
		3409	}
		3410	while (my $sig = shift @WAIT_FOR_TICK) {
		3411	$sig->send;
		3412	}
		3413
		3414	$NOW = Event::time;
		3415
1556	# if we are delayed by four ticks or more, skip them all	3416	# if we are delayed by four ticks or more, skip them all
1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3417	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1558		3418
1559	$TICK_WATCHER->at ($NEXT_TICK);	3419	$TICK_WATCHER->at ($NEXT_TICK);
1560	$TICK_WATCHER->start;	3420	$TICK_WATCHER->start;
		3421
		3422	$LOAD = ($NOW - $tick_start) / $TICK;
		3423	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3424
		3425	_post_tick;
		3426
		3427
1561	},	3428	},
1562	);	3429	);
1563		3430
		3431	{
1564	IO::AIO::max_poll_time $TICK * 0.2;	3432	BDB::max_poll_time $TICK * 0.1;
1565		3433	$BDB_POLL_WATCHER = Event->io (
1566	Event->io (	3434	reentrant => 0,
1567	fd => IO::AIO::poll_fileno,	3435	fd => BDB::poll_fileno,
1568	poll => 'r',	3436	poll => 'r',
1569	prio => 5,	3437	prio => 0,
1570	data => WF_AUTOCANCEL,
1571	cb => \&IO::AIO::poll_cb,
1572	);
1573
1574	Event->timer (
1575	data => WF_AUTOCANCEL,	3438	data => WF_AUTOCANCEL,
1576	after => 0,	3439	cb => \&BDB::poll_cb,
1577	interval => 10,	3440	);
1578	cb => sub {	3441	BDB::min_parallel 8;
1579	(Coro::unblock_sub {	3442
1580	write_runtime	3443	BDB::set_sync_prepare {
1581	or warn "ERROR: unable to write runtime file: $!";	3444	my $status;
		3445	my $current = $Coro::current;
		3446	(
		3447	sub {
		3448	$status = $!;
		3449	$current->ready; undef $current;
		3450	},
		3451	sub {
		3452	Coro::schedule while defined $current;
		3453	$! = $status;
		3454	},
		3455	)
		3456	};
		3457
		3458	unless ($DB_ENV) {
		3459	$DB_ENV = BDB::db_env_create;
		3460
		3461	cf::sync_job {
		3462	eval {
		3463	BDB::db_env_open
		3464	$DB_ENV,
		3465	$BDBDIR,
		3466	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3467	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3468	0666;
		3469
		3470	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3471
		3472	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3473	$DB_ENV->set_lk_detect;
		3474	};
		3475
		3476	cf::cleanup "db_env_open(db): $@" if $@;
1582	})->();	3477	};
1583	},	3478	}
1584	);	3479	}
		3480
		3481	{
		3482	IO::AIO::min_parallel 8;
		3483
		3484	undef $Coro::AIO::WATCHER;
		3485	IO::AIO::max_poll_time $TICK * 0.1;
		3486	$AIO_POLL_WATCHER = Event->io (
		3487	reentrant => 0,
		3488	data => WF_AUTOCANCEL,
		3489	fd => IO::AIO::poll_fileno,
		3490	poll => 'r',
		3491	prio => 6,
		3492	cb => \&IO::AIO::poll_cb,
		3493	);
		3494	}
		3495
		3496	my $_log_backtrace;
		3497
		3498	sub _log_backtrace {
		3499	my ($msg, @addr) = @_;
		3500
		3501	$msg =~ s/\n//;
		3502
		3503	# limit the # of concurrent backtraces
		3504	if ($_log_backtrace < 2) {
		3505	++$_log_backtrace;
		3506	async {
		3507	my @bt = fork_call {
		3508	@addr = map { sprintf "%x", $_ } @addr;
		3509	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3510	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3511	or die "addr2line: $!";
		3512
		3513	my @funcs;
		3514	my @res = <$fh>;
		3515	chomp for @res;
		3516	while (@res) {
		3517	my ($func, $line) = splice @res, 0, 2, ();
		3518	push @funcs, "[$func] $line";
		3519	}
		3520
		3521	@funcs
		3522	};
		3523
		3524	LOG llevInfo, "[ABT] $msg\n";
		3525	LOG llevInfo, "[ABT] $_\n" for @bt;
		3526	--$_log_backtrace;
		3527	};
		3528	} else {
		3529	LOG llevInfo, "[ABT] $msg\n";
		3530	LOG llevInfo, "[ABT] [suppressed]\n";
		3531	}
		3532	}
		3533
		3534	# load additional modules
		3535	use cf::pod;
		3536
		3537	END { cf::emergency_save }
1585		3538
1586	1	3539	1
1587		3540

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