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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.105 by root, Sun Dec 31 17:17:23 2006 UTC vs.
Revision 1.370 by root, Thu Sep 13 10:59:41 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;
		29	use Digest::MD5;
20	use Fcntl;	30	use Fcntl;
21	use IO::AIO 2.31 ();
22	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.32 ();
23	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
24		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
25	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
26		44
27	# 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?
28	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
29		47
30	$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
31		49
32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
33		51
34	our %COMMAND = ();	52	our %COMMAND = ();
35	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
36	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
37		60
		61	our $RELOAD; # number of reloads so far
38	our @EVENT;	62	our @EVENT;
39	our $LIBDIR = datadir . "/ext";
40		63
41	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(!)
42	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
43	our $NEXT_TICK;	80	our $NEXT_TICK;
44	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
45		88
46	our %CFG;	89	our %CFG;
47		90
48	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
49	our $RUNTIME;	92	our $RUNTIME;
50		93
51	our %MAP; # all maps	94	our (%PLAYER, %PLAYER_LOADING); # all users
52	our $LINK_MAP; # the special {link} map	95	our (%MAP, %MAP_LOADING ); # all maps
53	our $FREEZE;	96	our $LINK_MAP; # the special {link} map, which is always available
		97
		98	# used to convert map paths into valid unix filenames by replacing / by ∕
		99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
54		104
55	binmode STDOUT;	105	binmode STDOUT;
56	binmode STDERR;	106	binmode STDERR;
57		107
58	# read virtual server time, if available	108	# read virtual server time, if available
59	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
60	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
61	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
62	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
63	}	113	}
64		114
65	mkdir cf::localdir;	115	mkdir $_
66	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
67	mkdir cf::localdir . "/" . cf::tmpdir;
68	mkdir cf::localdir . "/" . cf::uniquedir;
69		117
70	our %EXT_CORO;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
71		121
72	#############################################################################	122	#############################################################################
73		123
74	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
75		125
…		…
82	=item $cf::RUNTIME	132	=item $cf::RUNTIME
83		133
84	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
85	every server tick.	135	every server tick.
86		136
87	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
88		140
89	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
90	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
91		145
92	=item $cf::NOW	146	=item $cf::NOW
93		147
94	The time of the last (current) server tick.	148	The time of the last (current) server tick.
95		149
96	=item $cf::TICK	150	=item $cf::TICK
97		151
98	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
99		163
100	=item %cf::CFG	164	=item %cf::CFG
101		165
102	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
103	from wherever your confdir points to.	167	from wherever your confdir points to.
		168
		169	=item cf::wait_for_tick, cf::wait_for_tick_begin
		170
		171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		172	returns directly I<after> the tick processing (and consequently, can only wake one process
		173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
104		180
105	=back	181	=back
106		182
107	=cut	183	=cut
108		184
109	BEGIN {	185	BEGIN {
110	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
111	my $msg = join "", @_;	187	my $msg = join "", @_;
112	utf8::encode $msg;
113		188
114	$msg .= "\n"	189	$msg .= "\n"
115	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
116		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		193
117	LOG llevError, "cfperl: $msg";	194	LOG llevError, $msg;
118	};	195	};
119	}	196	}
120		197
121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
122	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
123	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
124	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
125	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
127		205
128	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
129	# within the Safe compartment.	207	# within the Safe compartment.
130	for my $pkg (qw(	208	for my $pkg (qw(
131	cf::global cf::attachable	209	cf::global cf::attachable
…		…
140		218
141	$Event::DIED = sub {	219	$Event::DIED = sub {
142	warn "error in event callback: @_";	220	warn "error in event callback: @_";
143	};	221	};
144		222
145	my %ext_pkg;	223	#############################################################################
146	my @exts;
147	my @hook;
148		224
149	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
150		226
151	=over 4	227	=over 4
152		228
153	=cut	229	=item dumpval $ref
154		230
155	use JSON::Syck (); # TODO# replace by JSON::PC once working	231	=cut
		232
		233	sub dumpval {
		234	eval {
		235	local $SIG{__DIE__};
		236	my $d;
		237	if (1) {
		238	$d = new Data::Dumper([$_[0]], ["*var"]);
		239	$d->Terse(1);
		240	$d->Indent(2);
		241	$d->Quotekeys(0);
		242	$d->Useqq(1);
		243	#$d->Bless(...);
		244	$d->Seen($_[1]) if @_ > 1;
		245	$d = $d->Dump();
		246	}
		247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		248	$d
		249	} || "[unable to dump $_[0]: '$@']";
		250	}
156		251
157	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
158		253
159	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
160		255
161	=cut
162
163	sub from_json($) {
164	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
165	JSON::Syck::Load $_[0]
166	}
167
168	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
169		257
170	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
171		259
172	=cut	260	=cut
173		261
174	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
176	JSON::Syck::Dump $_[0]
177	}
178		263
179	# main coro must never ever "block" except in Event	264	sub to_json ($) { $json_coder->encode ($_[0]) }
180	# sync_job ensures this by running the job in a coroutine	265	sub from_json ($) { $json_coder->decode ($_[0]) }
181	# and waiting in Event while the server is otherwise frozen	266
		267	=item cf::lock_wait $string
		268
		269	Wait until the given lock is available. See cf::lock_acquire.
		270
		271	=item my $lock = cf::lock_acquire $string
		272
		273	Wait until the given lock is available and then acquires it and returns
		274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		275	for example when the coroutine gets canceled), the lock is automatically
		276	returned.
		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
		281	Lock names should begin with a unique identifier (for example, cf::map::find
		282	uses map_find and cf::map::load uses map_load).
		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
		288	=cut
		289
		290	our %LOCK;
		291	our %LOCKER;#d#
		292
		293	sub lock_wait($) {
		294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
		300
		301	# wait for lock, if any
		302	while ($LOCK{$key}) {
		303	push @{ $LOCK{$key} }, $Coro::current;
		304	Coro::schedule;
		305	}
		306	}
		307
		308	sub lock_acquire($) {
		309	my ($key) = @_;
		310
		311	# wait, to be sure we are not locked
		312	lock_wait $key;
		313
		314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
		316
		317	Coro::guard {
		318	delete $LOCKER{$key};#d#
		319	# wake up all waiters, to be on the safe side
		320	$_->ready for @{ delete $LOCK{$key} };
		321	}
		322	}
		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
		330	sub freeze_mainloop {
		331	return unless $TICK_WATCHER->is_active;
		332
		333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
		336	$TICK_WATCHER->stop;
		337	$guard
		338	}
		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
		394	}
		395
		396	=item cf::async { BLOCK }
		397
		398	Currently the same as Coro::async_pool, meaning you cannot use
		399	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		400	thing you are allowed to do is call C<prio> on it.
		401
		402	=cut
		403
		404	BEGIN { *async = \&Coro::async_pool }
		405
		406	=item cf::sync_job { BLOCK }
		407
		408	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
		409	is always able to handle events or runnable, as Crossfire TRT is only
		410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
		412
		413	If it must be done, put the blocking parts into C<sync_job>. This will run
		414	the given BLOCK in another coroutine while waiting for the result. The
		415	server will be frozen during this time, so the block should either finish
		416	fast or be very important.
		417
		418	=cut
		419
182	sub sync_job(&) {	420	sub sync_job(&) {
183	my ($job) = @_;	421	my ($job) = @_;
184		422
185	my $busy = 1;
186	my @res;
187
188	local $FREEZE = 1;
189
190	my $coro = Coro::async {
191	@res = eval { $job->() };
192	warn $@ if $@;
193	undef $busy;
194	};
195
196	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
		426	# this is the main coro, too bad, we have to block
		427	# till the operation succeeds, freezing the server :/
		428
		429	# TODO: use suspend/resume instead
		430	# (but this is cancel-safe)
		431	my $freeze_guard = freeze_mainloop;
		432
		433	my $busy = 1;
		434	my @res;
		435
		436	(async {
		437	@res = eval { $job->() };
		438	warn $@ if $@;
		439	undef $busy;
197	$coro->prio (Coro::PRIO_MAX);	440	})->prio (Coro::PRIO_MAX);
		441
198	while ($busy) {	442	while ($busy) {
199	Coro::cede_notself;	443	Coro::cede or Event::one_event;
200	Event::one_event unless Coro::nready;
201	}	444	}
		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
		452
		453	wantarray ? @res : $res[0]
202	} else {	454	} else {
203	$coro->join;	455	# we are in another coroutine, how wonderful, everything just works
		456
		457	$job->()
204	}	458	}
205
206	wantarray ? @res : $res[0]
207	}	459	}
208		460
209	=item $coro = cf::coro { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
210		462
211	Creates and returns a new coro. This coro is automcatially being canceled	463	Like async, but this coro is automatically being canceled when the
212	when the extension calling this is being unloaded.	464	extension calling this is being unloaded.
213		465
214	=cut	466	=cut
215		467
216	sub coro(&) {	468	sub async_ext(&) {
217	my $cb = shift;	469	my $cb = shift;
218		470
219	my $coro; $coro = async {	471	my $coro = &Coro::async ($cb);
220	eval {
221	$cb->();
222	};
223	warn $@ if $@;
224	};
225		472
226	$coro->on_destroy (sub {	473	$coro->on_destroy (sub {
227	delete $EXT_CORO{$coro+0};	474	delete $EXT_CORO{$coro+0};
228	});	475	});
229	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
230		477
231	$coro	478	$coro
232	}	479	}
233		480
		481	=item fork_call { }, $args
		482
		483	Executes the given code block with the given arguments in a seperate
		484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
		487
		488	=cut
		489
		490	sub fork_call(&@) {
		491	my ($cb, @args) = @_;
		492
		493	# we seemingly have to make a local copy of the whole thing,
		494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
		496
		497	my @res = Coro::Util::fork_eval {
		498	reset_signals;
		499	&$cb
		500	}, @args;
		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
		554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		641	}
		642
234	=back	643	=back
235		644
236	=cut	645	=cut
237		646
238	#############################################################################	647	#############################################################################
…		…
243	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
244	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
245		654
246	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
247	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
248	crossfire+).	657	Crossfire TRT).
249		658
250	=over 4	659	=over 4
251		660
252	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
253		662
…		…
367	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
368	our @CB_MAP = ();	777	our @CB_MAP = ();
369		778
370	my %attachment;	779	my %attachment;
371		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
372	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
373	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
374		789
375	use sort 'stable';	790	use sort 'stable';
376		791
…		…
410	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
411		826
412	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
413	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
414	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
415	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
416		831
417	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
418	my $pkg = shift @arg;	833	my $pkg = shift @arg;
419		834
420	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
449	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
450	}	865	}
451		866
452	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
453	} else {	868	} else {
454	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
455	}	870	}
456		871
457	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
458	}	873	}
459		874
…		…
461	if (ref $_[0]) {	876	if (ref $_[0]) {
462	_object_attach @_;	877	_object_attach @_;
463	} else {	878	} else {
464	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
465	}	880	}
		881	_recalc_want;
466	};	882	};
467		883
468	# all those should be optimised	884	# all those should be optimised
469	sub cf::attachable::detach {	885	sub cf::attachable::detach {
470	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
473	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
474	reattach ($obj);	890	reattach ($obj);
475	} else {	891	} else {
476	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
477	}	893	}
		894	_recalc_want;
478	};	895	};
479		896
480	sub cf::attachable::attached {	897	sub cf::attachable::attached {
481	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
482		899
…		…
497	";	914	";
498	die if $@;	915	die if $@;
499	}	916	}
500		917
501	our $override;	918	our $override;
502	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
503		920
504	sub override {	921	sub override {
505	$override = 1;	922	$override = 1;
506	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
507	}	924	}
508		925
509	sub do_invoke {	926	sub do_invoke {
510	my $event = shift;	927	my $event = shift;
511	my $callbacks = shift;	928	my $callbacks = shift;
512		929
513	@invoke_results = ();	930	@INVOKE_RESULTS = ();
514		931
515	local $override;	932	local $override;
516		933
517	for (@$callbacks) {	934	for (@$callbacks) {
518	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
535		952
536	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
537		954
538	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
539	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
540	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
541		958
542	=back	959	=back
543		960
544	=cut	961	=cut
545		962
546	#############################################################################	963	#############################################################################
547	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
548		976
549	sub reattach {	977	sub reattach {
550	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
551	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
552		982
553	my $registry = $obj->registry;	983	my $registry = $obj->registry;
554		984
555	@$registry = ();	985	@$registry = ();
556		986
…		…
595	);	1025	);
596		1026
597	sub object_freezer_save {	1027	sub object_freezer_save {
598	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
599		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
600	sync_job {	1032	sync_job {
601	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
602	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
603	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
604		1037
605	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
606	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
607	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
608	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
609	close $fh;	1042	close $fh;
610		1043
611	if (@$objs) {	1044	if (@$objs) {
612	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
613	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
614	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
615	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
616	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
617	close $fh;	1050	close $fh;
618	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
619	}	1052	}
620	} else {	1053	} else {
621	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
627	}	1060	}
628	} else {	1061	} else {
629	aio_unlink $filename;	1062	aio_unlink $filename;
630	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
631	}	1064	}
632	}	1065	};
		1066
		1067	undef $guard;
633	}	1068	}
634		1069
635	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
636	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
637		1072
…		…
642		1077
643	sub object_thawer_load {	1078	sub object_thawer_load {
644	my ($filename) = @_;	1079	my ($filename) = @_;
645		1080
646	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
647		1084
648	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
649	or return;	1086	or return;
650		1087
651	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
652	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
653	or return;	1090	or return;
		1091
		1092	undef $guard;
654	$av = eval { (Storable::thaw <$av>)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
655	}	1094	}
656		1095
		1096	utf8::decode (my $decname = $filename);
		1097	warn sprintf "loading %s (%d,%d)\n",
		1098	$decname, length $data, scalar @{$av || []};
		1099
657	return ($data, $av);	1100	($data, $av)
658	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
659		1108
660	#############################################################################	1109	#############################################################################
661	# command handling &c	1110	# command handling &c
662		1111
663	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
676	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
677	}	1126	}
678		1127
679	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
680		1129
681	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
682		1135
683	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
684	called.	1137	called.
685		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
686	=cut	1150	=cut
687		1151
688	sub register_extcmd {	1152	sub register_extcmd {
689	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
690		1154
691	my $caller = caller;
692	#warn "registering extcmd '$name' to '$caller'";
693
694	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
695	}	1162	}
696		1163
697	cf::player->attach (	1164	cf::player->attach (
698	on_command => sub {	1165	on_command => sub {
699	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
708	cf::override;	1175	cf::override;
709	},	1176	},
710	on_extcmd => sub {	1177	on_extcmd => sub {
711	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
712		1179
713	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
714		1181
715	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
716	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
717	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
718	$pl->ext_reply ($msg->{msgid}, %reply);
719	}
720	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
721	} else {	1197	} else {
722	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
723	}	1199	}
724		1200
725	cf::override;	1201	cf::override;
726	},	1202	},
727	);	1203	);
728		1204
		1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
		1310	=item cf::player::find $login
		1311
		1312	Returns the given player object, loading it if necessary (might block).
		1313
		1314	=cut
		1315
		1316	sub playerdir($) {
		1317	"$PLAYERDIR/"
		1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1319	}
		1320
		1321	sub path($) {
		1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1323
		1324	(playerdir $login) . "/playerdata"
		1325	}
		1326
		1327	sub find_active($) {
		1328	$cf::PLAYER{$_[0]}
		1329	and $cf::PLAYER{$_[0]}->active
		1330	and $cf::PLAYER{$_[0]}
		1331	}
		1332
		1333	sub exists($) {
		1334	my ($login) = @_;
		1335
		1336	$cf::PLAYER{$login}
		1337	or cf::sync_job { !aio_stat path $login }
		1338	}
		1339
		1340	sub find($) {
		1341	return $cf::PLAYER{$_[0]} || do {
		1342	my $login = $_[0];
		1343
		1344	my $guard = cf::lock_acquire "user_find:$login";
		1345
		1346	$cf::PLAYER{$_[0]} || do {
		1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
		1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
		1362	$cf::PLAYER{$login} = $pl
		1363	}
		1364	}
		1365	}
		1366
		1367	sub save($) {
		1368	my ($pl) = @_;
		1369
		1370	return if $pl->{deny_save};
		1371
		1372	my $path = path $pl;
		1373	my $guard = cf::lock_acquire "user_save:$path";
		1374
		1375	return if $pl->{deny_save};
		1376
		1377	aio_mkdir playerdir $pl, 0770;
		1378	$pl->{last_save} = $cf::RUNTIME;
		1379
		1380	$pl->save_pl ($path);
		1381	cf::cede_to_tick;
		1382	}
		1383
		1384	sub new($) {
		1385	my ($login) = @_;
		1386
		1387	my $self = create;
		1388
		1389	$self->ob->name ($login);
		1390	$self->{deny_save} = 1;
		1391
		1392	$cf::PLAYER{$login} = $self;
		1393
		1394	$self
		1395	}
		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
		1407	=item $pl->quit_character
		1408
		1409	Nukes the player without looking back. If logged in, the connection will
		1410	be destroyed. May block for a long time.
		1411
		1412	=cut
		1413
		1414	sub quit_character {
		1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
		1418
		1419	$pl->{deny_save} = 1;
		1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1421
		1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1423	$pl->deactivate;
		1424	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1425	$pl->ns->destroy if $pl->ns;
		1426
		1427	my $path = playerdir $pl;
		1428	my $temp = "$path~$cf::RUNTIME~deleting~";
		1429	aio_rename $path, $temp;
		1430	delete $cf::PLAYER{$pl->ob->name};
		1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
		1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
		1453	}
		1454
		1455	=item cf::player::list_logins
		1456
		1457	Returns am arrayref of all valid playernames in the system, can take a
		1458	while and may block, so not sync_job-capable, ever.
		1459
		1460	=cut
		1461
		1462	sub list_logins {
		1463	my $dirs = aio_readdir $PLAYERDIR
		1464	or return [];
		1465
		1466	my @logins;
		1467
		1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
		1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1474	aio_read $fh, 0, 512, my $buf, 0 or next;
		1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
		1477
		1478	utf8::decode $login;
		1479	push @logins, $login;
		1480	}
		1481
		1482	\@logins
		1483	}
		1484
		1485	=item $player->maps
		1486
		1487	Returns an arrayref of map paths that are private for this
		1488	player. May block.
		1489
		1490	=cut
		1491
		1492	sub maps($) {
		1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
		1496
		1497	my $files = aio_readdir playerdir $pl
		1498	or return;
		1499
		1500	my @paths;
		1501
		1502	for (@$files) {
		1503	utf8::decode $_;
		1504	next if /\.(?:pl|pst)$/;
		1505	next unless /^$PATH_SEP/o;
		1506
		1507	push @paths, cf::map::normalise "~$pl/$_";
		1508	}
		1509
		1510	\@paths
		1511	}
		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
		1564	=item $player->ext_reply ($msgid, @msg)
		1565
		1566	Sends an ext reply to the player.
		1567
		1568	=cut
		1569
		1570	sub ext_reply($$@) {
		1571	my ($self, $id, @msg) = @_;
		1572
		1573	$self->ns->ext_reply ($id, @msg)
		1574	}
		1575
		1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
		1603	my ($path) = @_;
		1604
		1605	my ($match, $specificity);
		1606
		1607	for my $region (list) {
		1608	if ($region->{match} && $path =~ $region->{match}) {
		1609	($match, $specificity) = ($region, $region->specificity)
		1610	if $region->specificity > $specificity;
		1611	}
		1612	}
		1613
		1614	$match
		1615	}
		1616
		1617	=back
		1618
		1619	=head3 cf::map
		1620
		1621	=over 4
		1622
		1623	=cut
		1624
		1625	package cf::map;
		1626
		1627	use Fcntl;
		1628	use Coro::AIO;
		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
		1634	our $MAX_RESET = 3600;
		1635	our $DEFAULT_RESET = 3000;
		1636
		1637	sub generate_random_map {
		1638	my ($self, $rmp) = @_;
		1639	# mit "rum" bekleckern, nicht
		1640	$self->_create_random_map (
		1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
		1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
		1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
		1644	$rmp->{exit_on_final_map},
		1645	$rmp->{xsize}, $rmp->{ysize},
		1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
		1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
		1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
		1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
		1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
		1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
729	sub register {	1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
730	my ($base, $pkg) = @_;	1677	my ($self, $merge) = @_;
731		1678
732	#TODO	1679	# we have to keep some variables in memory intact
733	}	1680	local $self->{path};
		1681	local $self->{load_path};
734		1682
735	sub load_extension {	1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
736	my ($path) = @_;	1687	my ($path, $base) = @_;
737		1688
738	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1689	$path = "$path"; # make sure its a string
739	my $base = $1;
740	my $pkg = $1;
741	$pkg =~ s/[^[:word:]]/_/g;
742	$pkg = "ext::$pkg";
743		1690
744	warn "loading '$path' into '$pkg'\n";	1691	$path =~ s/\.map$//;
745		1692
746	open my $fh, "<:utf8", $path	1693	# map plan:
747	or die "$path: $!";	1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
748		1701
749	my $source =	1702	$path =~ s/$PATH_SEP/\//go;
750	"package $pkg; use strict; use utf8;\n"
751	. "#line 1 \"$path\"\n{\n"
752	. (do { local $/; <$fh> })
753	. "\n};\n1";
754		1703
755	eval $source	1704	# treat it as relative path if it starts with
756	or die $@ ? "$path: $@\n"	1705	# something that looks reasonable
757	: "extension disabled.\n";	1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
758		1708
759	push @exts, $pkg;	1709	$base =~ s{[^/]+/?$}{};
760	$ext_pkg{$base} = $pkg;	1710	$path = "$base/$path";
761
762	# no strict 'refs';
763	# @{"$pkg\::ISA"} = ext::;
764
765	register $base, $pkg;
766	}
767
768	sub unload_extension {
769	my ($pkg) = @_;
770
771	warn "removing extension $pkg\n";
772
773	# remove hooks
774	#TODO
775	# for my $idx (0 .. $#PLUGIN_EVENT) {
776	# delete $hook[$idx]{$pkg};
777	# }	1711	}
778		1712
779	# remove commands	1713	for ($path) {
780	for my $name (keys %COMMAND) {	1714	redo if s{//}{/};
781	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };	1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
782		1718
783	if (@cb) {	1719	$path
784	$COMMAND{$name} = \@cb;	1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
		1780	}
		1781
		1782	# and all this just because we cannot iterate over
		1783	# all maps in C++...
		1784	sub change_all_map_light {
		1785	my ($change) = @_;
		1786
		1787	$_->change_map_light ($change)
		1788	for grep $_->outdoor, values %cf::MAP;
		1789	}
		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
		1807	sub load_header_from($) {
		1808	my ($self, $path) = @_;
		1809
		1810	utf8::encode $path;
		1811	my $f = new_from_file cf::object::thawer $path
		1812	or return;
		1813
		1814	$self->_load_header ($f)
		1815	or return;
		1816
		1817	local $MAP_LOADING{$self->{path}} = $self;
		1818	$f->resolve_delayed_derefs;
		1819
		1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
785	} else {	1861	} else {
786	delete $COMMAND{$name};	1862	$self->load_header_orig
787	}	1863	or return;
		1864	$self->prepare_orig;
		1865	}
		1866
		1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
		1869
		1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
788	}	1873	1
		1874	}
789		1875
790	# remove extcmds	1876	sub find;
791	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1877	sub find {
792	delete $EXTCMD{$name};	1878	my ($path, $origin) = @_;
		1879
		1880	$path = normalise $path, $origin && $origin->path;
		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
		1883	cf::lock_wait "map_find:$path";
		1884
		1885	$cf::MAP{$path} || do {
		1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1888
		1889	my $map = new_from_path cf::map $path
		1890	or return;
		1891
		1892	$map->{last_save} = $cf::RUNTIME;
		1893
		1894	$map->load_header
		1895	or return;
		1896
		1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
		1902	$map->reset;
		1903	return find $path;
		1904	}
		1905
		1906	$cf::MAP{$path} = $map
		1907	}
		1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
		1912
		1913	sub load {
		1914	my ($self) = @_;
		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
		1918	my $path = $self->{path};
		1919
793	}	1920	{
		1921	my $guard = cf::lock_acquire "map_data:$path";
794		1922
795	if (my $cb = $pkg->can ("unload")) {	1923	return unless $self->valid;
796	eval {	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
797	$cb->($pkg);	1925
		1926	$self->in_memory (cf::MAP_LOADING);
		1927
		1928	$self->alloc;
		1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
		1936	or return;
		1937
		1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1939	if delete $self->{load_original};
		1940
		1941	if (my $uniq = $self->uniq_path) {
		1942	utf8::encode $uniq;
		1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
		1945	$self->clear_unique_items;
		1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
798	1	1949	}
799	} or warn "$pkg unloaded, but with errors: $@";	1950	}
800	}
801		1951
802	Symbol::delete_package $pkg;	1952	$f->resolve_delayed_derefs;
803	}
804		1953
805	sub load_extensions {	1954	cf::cede_to_tick;
806	for my $ext (<$LIBDIR/*.ext>) {	1955	# now do the right thing for maps
807	next unless -r $ext;	1956	$self->link_multipart_objects;
808	eval {	1957	$self->difficulty ($self->estimate_difficulty)
809	load_extension $ext;	1958	unless $self->difficulty;
810	1	1959	cf::cede_to_tick;
811	} or warn "$ext not loaded: $@";
812	}
813	}
814		1960
815	#############################################################################	1961	unless ($self->{deny_activate}) {
816	# load/save/clean perl data associated with a map	1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
		1968	$self->activate;
		1969	}
817		1970
818	*cf::mapsupport::on_clean = sub {	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
		1973
		1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
		1990	}
		1991
		1992	# find and load all maps in the 3x3 area around a map
		1993	sub load_neighbours {
819	my ($map) = @_;	1994	my ($map) = @_;
820		1995
821	my $path = $map->tmpname;	1996	my @neigh; # diagonal neighbours
822	defined $path or return;
823		1997
824	unlink "$path.pst";	1998	for (0 .. 3) {
825	};	1999	my $neigh = $map->tile_path ($_)
		2000	or next;
		2001	$neigh = find $neigh, $map
		2002	or next;
		2003	$neigh->load;
826		2004
827	cf::map->attach (prio => -10000, package => cf::mapsupport::);	2005	push @neigh,
		2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2008	}
828		2009
829	#############################################################################	2010	for (grep defined $_->[0], @neigh) {
830	# load/save perl data associated with player->ob objects	2011	my ($path, $origin) = @$_;
831		2012	my $neigh = find $path, $origin
832	sub all_objects(@) {	2013	or next;
833	@_, map all_objects ($_->inv), @_	2014	$neigh->load;
		2015	}
834	}	2016	}
835		2017
836	# TODO: compatibility cruft, remove when no longer needed	2018	sub find_sync {
837	cf::player->attach (	2019	my ($path, $origin) = @_;
838	on_load => sub {
839	my ($pl, $path) = @_;
840		2020
841	for my $o (all_objects $pl->ob) {	2021	cf::sync_job { find $path, $origin }
842	if (my $value = $o->get_ob_key_value ("_perl_data")) {	2022	}
843	$o->set_ob_key_value ("_perl_data");
844		2023
845	%$o = %{ Storable::thaw pack "H*", $value };	2024	sub do_load_sync {
		2025	my ($map) = @_;
		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
		2030	cf::sync_job { $map->load };
		2031	}
		2032
		2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
		2047	$MAP_PREFETCHER ||= cf::async {
		2048	while (%MAP_PREFETCH) {
		2049	while (my ($k, $v) = each %MAP_PREFETCH) {
		2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
		2054	delete $MAP_PREFETCH{$k};
846	}	2055	}
847	}	2056	}
		2057	undef $MAP_PREFETCHER;
		2058	};
		2059	$MAP_PREFETCHER->prio (6);
		2060
		2061	()
		2062	}
		2063
		2064	sub save {
		2065	my ($self) = @_;
		2066
		2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2068
		2069	$self->{last_save} = $cf::RUNTIME;
		2070
		2071	return unless $self->dirty;
		2072
		2073	my $save = $self->save_path; utf8::encode $save;
		2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2075
		2076	$self->{load_path} = $save;
		2077
		2078	return if $self->{deny_save};
		2079
		2080	local $self->{last_access} = $self->last_access;#d#
		2081
		2082	cf::async {
		2083	$_->contr->save for $self->players;
		2084	};
		2085
		2086	if ($uniq) {
		2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2089	} else {
		2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
848	},	2091	}
849	);	2092	}
850		2093
851	#############################################################################	2094	sub swap_out {
		2095	my ($self) = @_;
852		2096
853	=head2 CORE EXTENSIONS	2097	# save first because save cedes
		2098	$self->save;
854		2099
855	Functions and methods that extend core crossfire objects.	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
856		2101
857	=head3 cf::player	2102	return if $self->players;
		2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
		2104	return if $self->{deny_save};
		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
		2110	$self->clear;
		2111	}
		2112
		2113	sub reset_at {
		2114	my ($self) = @_;
		2115
		2116	# TODO: safety, remove and allow resettable per-player maps
		2117	return 1e99 if $self->{deny_reset};
		2118
		2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2121
		2122	$time + $to
		2123	}
		2124
		2125	sub should_reset {
		2126	my ($self) = @_;
		2127
		2128	$self->reset_at <= $cf::RUNTIME
		2129	}
		2130
		2131	sub reset {
		2132	my ($self) = @_;
		2133
		2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2135
		2136	return if $self->players;
		2137
		2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
		2149
		2150	delete $cf::MAP{$self->path};
		2151
		2152	$self->deactivate;
		2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
		2155
		2156	$self->unlink_save;
		2157	$self->destroy;
		2158	}
		2159
		2160	my $nuke_counter = "aaaa";
		2161
		2162	sub nuke {
		2163	my ($self) = @_;
		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
		2168	delete $cf::MAP{$self->path};
		2169
		2170	$self->unlink_save;
		2171
		2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
		2174	$self->{deny_save} = 1;
		2175	$self->reset_timeout (1);
		2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
		2181	$self->reset; # polite request, might not happen
		2182	}
		2183
		2184	=item $maps = cf::map::tmp_maps
		2185
		2186	Returns an arrayref with all map paths of currently instantiated and saved
		2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
		2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
		2201
		2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
		2220	=item cf::map::unique_maps
		2221
		2222	Returns an arrayref of paths of all shared maps that have
		2223	instantiated unique items. May block.
		2224
		2225	=cut
		2226
		2227	sub unique_maps() {
		2228	[
		2229	map {
		2230	utf8::decode $_;
		2231	/\.map$/
		2232	? normalise $_
		2233	: ()
		2234	} @{ aio_readdir $UNIQUEDIR or [] }
		2235	]
		2236	}
		2237
		2238	package cf;
		2239
		2240	=back
		2241
		2242	=head3 cf::object
		2243
		2244	=cut
		2245
		2246	package cf::object;
858		2247
859	=over 4	2248	=over 4
860		2249
861	=item cf::player::exists $login	2250	=item $ob->inv_recursive
862		2251
863	Returns true when the given account exists.	2252	Returns the inventory of the object _and_ their inventories, recursively.
864		2253
865	=cut	2254	=cut
866		2255
867	sub cf::player::exists($) {	2256	sub inv_recursive_;
868	cf::player::find $_[0]	2257	sub inv_recursive_ {
869	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	2258	map { $_, inv_recursive_ $_->inv } @_
870	}	2259	}
871		2260
872	=item $player->ext_reply ($msgid, $msgtype, %msg)	2261	sub inv_recursive {
873		2262	inv_recursive_ inv $_[0]
874	Sends an ext reply to the player.
875
876	=cut
877
878	sub cf::player::ext_reply($$$%) {
879	my ($self, $id, %msg) = @_;
880
881	$msg{msgid} = $id;
882
883	$self->send ("ext " . to_json \%msg);
884	}	2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
		2294	}
		2295
		2296	package cf;
885		2297
886	=back	2298	=back
887		2299
888	=head3 cf::object::player	2300	=head3 cf::object::player
889		2301
…		…
905		2317
906	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
907		2319
908	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
909	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
910	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
911	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
912	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
913	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
914	}	2345	}
915		2346
916	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
917		2348
918	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
927	(ref $cf::CFG{"may_$access"}	2358	(ref $cf::CFG{"may_$access"}
928	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2359	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
929	: $cf::CFG{"may_$access"})	2360	: $cf::CFG{"may_$access"})
930	}	2361	}
931		2362
		2363	=item $player_object->enter_link
		2364
		2365	Freezes the player and moves him/her to a special map (C<{link}>).
		2366
		2367	The player should be reasonably safe there for short amounts of time. You
		2368	I<MUST> call C<leave_link> as soon as possible, though.
		2369
		2370	Will never block.
		2371
		2372	=item $player_object->leave_link ($map, $x, $y)
		2373
		2374	Moves the player out of the special C<{link}> map onto the specified
		2375	map. If the map is not valid (or omitted), the player will be moved back
		2376	to the location he/she was before the call to C<enter_link>, or, if that
		2377	fails, to the emergency map position.
		2378
		2379	Might block.
		2380
		2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
		2392
		2393	sub cf::object::player::enter_link {
		2394	my ($self) = @_;
		2395
		2396	$self->deactivate_recursive;
		2397
		2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2399
		2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2401	if $self->map && $self->map->{path} ne "{link}";
		2402
		2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
		2404	}
		2405
		2406	sub cf::object::player::leave_link {
		2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
		2410
		2411	my $link_pos = delete $self->{_link_pos};
		2412
		2413	unless ($map) {
		2414	# restore original map position
		2415	($map, $x, $y) = @{ $link_pos || [] };
		2416	$map = cf::map::find $map;
		2417
		2418	unless ($map) {
		2419	($map, $x, $y) = @$EMERGENCY_POSITION;
		2420	$map = cf::map::find $map
		2421	or die "FATAL: cannot load emergency map\n";
		2422	}
		2423	}
		2424
		2425	($x, $y) = (-1, -1)
		2426	unless (defined $x) && (defined $y);
		2427
		2428	# use -1 or undef as default coordinates, not 0, 0
		2429	($x, $y) = ($map->enter_x, $map->enter_y)
		2430	if $x <=0 && $y <= 0;
		2431
		2432	$map->load;
		2433	$map->load_neighbours;
		2434
		2435	return unless $self->contr->active;
		2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2439	$self->enter_map ($map, $x, $y);
		2440	}
		2441
		2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
		2443
		2444	Moves the player to the given map-path and coordinates by first freezing
		2445	her, loading and preparing them map, calling the provided $check callback
		2446	that has to return the map if sucecssful, and then unfreezes the player on
		2447	the new (success) or old (failed) map position. In either case, $done will
		2448	be called at the end of this process.
		2449
		2450	=cut
		2451
		2452	our $GOTOGEN;
		2453
		2454	sub cf::object::player::goto {
		2455	my ($self, $path, $x, $y, $check, $done) = @_;
		2456
		2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
		2459
		2460	$self->enter_link;
		2461
		2462	(async {
		2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
		2482	my $map = eval {
		2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
		2486	$map = $map->customise_for ($self);
		2487	$map = $check->($map) if $check && $map;
		2488	} else {
		2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
		2491
		2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
		2498	}
		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
		2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
		2506	})->prio (1);
		2507	}
		2508
		2509	=item $player_object->enter_exit ($exit_object)
		2510
		2511	=cut
		2512
		2513	sub parse_random_map_params {
		2514	my ($spec) = @_;
		2515
		2516	my $rmp = { # defaults
		2517	xsize => (cf::rndm 15, 40),
		2518	ysize => (cf::rndm 15, 40),
		2519	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2520	#layout => string,
		2521	};
		2522
		2523	for (split /\n/, $spec) {
		2524	my ($k, $v) = split /\s+/, $_, 2;
		2525
		2526	$rmp->{lc $k} = $v if (length $k) && (length $v);
		2527	}
		2528
		2529	$rmp
		2530	}
		2531
		2532	sub prepare_random_map {
		2533	my ($exit) = @_;
		2534
		2535	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2536
		2537	# all this does is basically replace the /! path by
		2538	# a new random map path (?random/...) with a seed
		2539	# that depends on the exit object
		2540
		2541	my $rmp = parse_random_map_params $exit->msg;
		2542
		2543	if ($exit->map) {
		2544	$rmp->{region} = $exit->region->name;
		2545	$rmp->{origin_map} = $exit->map->path;
		2546	$rmp->{origin_x} = $exit->x;
		2547	$rmp->{origin_y} = $exit->y;
		2548	}
		2549
		2550	$rmp->{random_seed} ||= $exit->random_seed;
		2551
		2552	my $data = cf::to_json $rmp;
		2553	my $md5 = Digest::MD5::md5_hex $data;
		2554	my $meta = "$RANDOMDIR/$md5.meta";
		2555
		2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
		2557	aio_write $fh, 0, (length $data), $data, 0;
		2558	undef $fh;
		2559	aio_rename "$meta~", $meta;
		2560
		2561	$exit->slaying ("?random/$md5");
		2562	$exit->msg (undef);
		2563	}
		2564	}
		2565
		2566	sub cf::object::player::enter_exit {
		2567	my ($self, $exit) = @_;
		2568
		2569	return unless $self->type == cf::PLAYER;
		2570
		2571	if ($exit->slaying eq "/!") {
		2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
		2575	cf::sync_job { prepare_random_map $exit };
		2576	}
		2577
		2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2579	my $hp = $exit->stats->hp;
		2580	my $sp = $exit->stats->sp;
		2581
		2582	$self->enter_link;
		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
		2587
		2588	(async {
		2589	$self->deactivate_recursive; # just to be sure
		2590	unless (eval {
		2591	$self->goto ($slaying, $hp, $sp);
		2592
		2593	1;
		2594	}) {
		2595	$self->message ("Something went wrong deep within the crossfire server. "
		2596	. "I'll try to bring you back to the map you were before. "
		2597	. "Please report this to the dungeon master!",
		2598	cf::NDI_UNIQUE | cf::NDI_RED);
		2599
		2600	warn "ERROR in enter_exit: $@";
		2601	$self->leave_link;
		2602	}
		2603	})->prio (1);
		2604	}
		2605
932	=head3 cf::client	2606	=head3 cf::client
933		2607
934	=over 4	2608	=over 4
935		2609
936	=item $client->send_drawinfo ($text, $flags)	2610	=item $client->send_drawinfo ($text, $flags)
…		…
942		2616
943	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
944	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
945		2619
946	utf8::encode $text;	2620	utf8::encode $text;
947	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
948	}	2622	}
949		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "identify",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "examine",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	);
		2647
		2648	sub cf::client::send_msg {
		2649	my ($self, $channel, $msg, $color, @extra) = @_;
		2650
		2651	$msg = $self->pl->expand_cfpod ($msg);
		2652
		2653	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2654
		2655	# check predefined channels, for the benefit of C
		2656	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2657
		2658	if (ref $channel) {
		2659	# send meta info to client, if not yet sent
		2660	unless (exists $self->{channel}{$channel->{id}}) {
		2661	$self->{channel}{$channel->{id}} = $channel;
		2662	$self->ext_msg (channel_info => $channel)
		2663	if $self->can_msg;
		2664	}
		2665
		2666	$channel = $channel->{id};
		2667	}
		2668
		2669	return unless @extra || length $msg;
		2670
		2671	if ($self->can_msg) {
		2672	# default colour, mask it out
		2673	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2674	if $color & cf::NDI_DEF;
		2675
		2676	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2677	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2678	} else {
		2679	if ($color >= 0) {
		2680	# replace some tags by gcfclient-compatible ones
		2681	for ($msg) {
		2682	1 while
		2683	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2684	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2685	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2686	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2687	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2688	}
		2689
		2690	$color &= cf::NDI_COLOR_MASK;
		2691
		2692	utf8::encode $msg;
		2693
		2694	if (0 && $msg =~ /\[/) {
		2695	# COMMAND/INFO
		2696	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2697	} else {
		2698	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2699	$self->send_packet ("drawinfo $color $msg")
		2700	}
		2701	}
		2702	}
		2703	}
		2704
		2705	=item $client->ext_msg ($type, @msg)
		2706
		2707	Sends an ext event to the client.
		2708
		2709	=cut
		2710
		2711	sub cf::client::ext_msg($$@) {
		2712	my ($self, $type, @msg) = @_;
		2713
		2714	if ($self->extcmd == 2) {
		2715	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2716	} elsif ($self->extcmd == 1) { # TODO: remove
		2717	push @msg, msgtype => "event_$type";
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2719	}
		2720	}
		2721
		2722	=item $client->ext_reply ($msgid, @msg)
		2723
		2724	Sends an ext reply to the client.
		2725
		2726	=cut
		2727
		2728	sub cf::client::ext_reply($$@) {
		2729	my ($self, $id, @msg) = @_;
		2730
		2731	if ($self->extcmd == 2) {
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2733	} elsif ($self->extcmd == 1) {
		2734	#TODO: version 1, remove
		2735	unshift @msg, msgtype => "reply", msgid => $id;
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2737	}
		2738	}
950		2739
951	=item $success = $client->query ($flags, "text", \&cb)	2740	=item $success = $client->query ($flags, "text", \&cb)
952		2741
953	Queues a query to the client, calling the given callback with	2742	Queues a query to the client, calling the given callback with
954	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2743	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
955	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2744	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
956		2745
957	Queries can fail, so check the return code. Or don't, as queries will become	2746	Queries can fail, so check the return code. Or don't, as queries will
958	reliable at some point in the future.	2747	become reliable at some point in the future.
959		2748
960	=cut	2749	=cut
961		2750
962	sub cf::client::query {	2751	sub cf::client::query {
963	my ($self, $flags, $text, $cb) = @_;	2752	my ($self, $flags, $text, $cb) = @_;
…		…
971	utf8::encode $text;	2760	utf8::encode $text;
972	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2761	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
973		2762
974	$self->send_packet ($self->{query_queue}[0][0])	2763	$self->send_packet ($self->{query_queue}[0][0])
975	if @{ $self->{query_queue} } == 1;	2764	if @{ $self->{query_queue} } == 1;
		2765
		2766	1
976	}	2767	}
977		2768
978	cf::client->attach (	2769	cf::client->attach (
		2770	on_connect => sub {
		2771	my ($ns) = @_;
		2772
		2773	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2774	},
979	on_reply => sub {	2775	on_reply => sub {
980	my ($ns, $msg) = @_;	2776	my ($ns, $msg) = @_;
981		2777
982	# this weird shuffling is so that direct followup queries	2778	# this weird shuffling is so that direct followup queries
983	# get handled first	2779	# get handled first
984	my $queue = delete $ns->{query_queue};	2780	my $queue = delete $ns->{query_queue}
		2781	or return; # be conservative, not sure how that can happen, but we saw a crash here
985		2782
986	(shift @$queue)->[1]->($msg);	2783	(shift @$queue)->[1]->($msg);
		2784	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
987		2785
988	push @{ $ns->{query_queue} }, @$queue;	2786	push @{ $ns->{query_queue} }, @$queue;
989		2787
990	if (@{ $ns->{query_queue} } == @$queue) {	2788	if (@{ $ns->{query_queue} } == @$queue) {
991	if (@$queue) {	2789	if (@$queue) {
…		…
993	} else {	2791	} else {
994	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2792	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
995	}	2793	}
996	}	2794	}
997	},	2795	},
		2796	on_exticmd => sub {
		2797	my ($ns, $buf) = @_;
		2798
		2799	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2800
		2801	if (ref $msg) {
		2802	my ($type, $reply, @payload) =
		2803	"ARRAY" eq ref $msg
		2804	? @$msg
		2805	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2806
		2807	my @reply;
		2808
		2809	if (my $cb = $EXTICMD{$type}) {
		2810	@reply = $cb->($ns, @payload);
		2811	}
		2812
		2813	$ns->ext_reply ($reply, @reply)
		2814	if $reply;
		2815
		2816	} else {
		2817	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2818	}
		2819
		2820	cf::override;
		2821	},
998	);	2822	);
999		2823
1000	=item $client->coro (\&cb)	2824	=item $client->async (\&cb)
1001		2825
1002	Create a new coroutine, running the specified callback. The coroutine will	2826	Create a new coroutine, running the specified callback. The coroutine will
1003	be automatically cancelled when the client gets destroyed (e.g. on logout,	2827	be automatically cancelled when the client gets destroyed (e.g. on logout,
1004	or loss of connection).	2828	or loss of connection).
1005		2829
1006	=cut	2830	=cut
1007		2831
1008	sub cf::client::coro {	2832	sub cf::client::async {
1009	my ($self, $cb) = @_;	2833	my ($self, $cb) = @_;
1010		2834
1011	my $coro; $coro = async {	2835	my $coro = &Coro::async ($cb);
1012	eval {
1013	$cb->();
1014	};
1015	warn $@ if $@;
1016	};
1017		2836
1018	$coro->on_destroy (sub {	2837	$coro->on_destroy (sub {
1019	delete $self->{_coro}{$coro+0};	2838	delete $self->{_coro}{$coro+0};
1020	});	2839	});
1021		2840
…		…
1048	our $safe = new Safe "safe";	2867	our $safe = new Safe "safe";
1049	our $safe_hole = new Safe::Hole;	2868	our $safe_hole = new Safe::Hole;
1050		2869
1051	$SIG{FPE} = 'IGNORE';	2870	$SIG{FPE} = 'IGNORE';
1052		2871
1053	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2872	$safe->permit_only (Opcode::opset qw(
		2873	:base_core :base_mem :base_orig :base_math
		2874	grepstart grepwhile mapstart mapwhile
		2875	sort time
		2876	));
1054		2877
1055	# here we export the classes and methods available to script code	2878	# here we export the classes and methods available to script code
1056		2879
1057	=pod	2880	=pod
1058		2881
1059	The following fucntions and emthods are available within a safe environment:	2882	The following functions and methods are available within a safe environment:
1060		2883
1061	cf::object contr pay_amount pay_player map	2884	cf::object
		2885	contr pay_amount pay_player map x y force_find force_add
		2886	insert remove name archname title slaying race decrease_ob_nr
		2887
1062	cf::object::player player	2888	cf::object::player
1063	cf::player peaceful	2889	player
1064	cf::map trigger	2890
		2891	cf::player
		2892	peaceful
		2893
		2894	cf::map
		2895	trigger
1065		2896
1066	=cut	2897	=cut
1067		2898
1068	for (	2899	for (
1069	["cf::object" => qw(contr pay_amount pay_player map)],	2900	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2901	insert remove inv name archname title slaying race
		2902	decrease_ob_nr)],
1070	["cf::object::player" => qw(player)],	2903	["cf::object::player" => qw(player)],
1071	["cf::player" => qw(peaceful)],	2904	["cf::player" => qw(peaceful)],
1072	["cf::map" => qw(trigger)],	2905	["cf::map" => qw(trigger)],
1073	) {	2906	) {
1074	no strict 'refs';	2907	no strict 'refs';
…		…
1145	=back	2978	=back
1146		2979
1147	=cut	2980	=cut
1148		2981
1149	#############################################################################	2982	#############################################################################
		2983	# the server's init and main functions
1150		2984
1151	=head2 EXTENSION DATABASE SUPPORT	2985	sub load_facedata($) {
		2986	my ($path) = @_;
1152		2987
1153	Crossfire maintains a very simple database for extension use. It can	2988	# HACK to clear player env face cache, we need some signal framework
1154	currently store anything that can be serialised using Storable, which	2989	# for this (global event?)
1155	excludes objects.	2990	%ext::player_env::MUSIC_FACE_CACHE = ();
1156		2991
1157	The parameter C<$family> should best start with the name of the extension	2992	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1158	using it, it should be unique.
1159		2993
1160	=over 4	2994	warn "loading facedata from $path\n";
1161		2995
1162	=item $hashref = cf::db_get $family	2996	my $facedata;
		2997	0 < aio_load $path, $facedata
		2998	or die "$path: $!";
1163		2999
1164	Return a hashref for use by the extension C<$family>, which can be	3000	$facedata = Coro::Storable::thaw $facedata;
1165	modified. After modifications, you have to call C<cf::db_dirty> or
1166	C<cf::db_sync>.
1167		3001
1168	=item $value = cf::db_get $family => $key	3002	$facedata->{version} == 2
		3003	or cf::cleanup "$path: version mismatch, cannot proceed.";
1169		3004
1170	Returns a single value from the database	3005	# patch in the exptable
1171		3006	$facedata->{resource}{"res/exp_table"} = {
1172	=item cf::db_put $family => $hashref	3007	type => FT_RSRC,
1173		3008	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1174	Stores the given family hashref into the database. Updates are delayed, if
1175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1176
1177	=item cf::db_put $family => $key => $value
1178
1179	Stores the given C<$value> in the family hash. Updates are delayed, if you
1180	want the data to be synced to disk immediately, use C<cf::db_sync>.
1181
1182	=item cf::db_dirty
1183
1184	Marks the database as dirty, to be updated at a later time.
1185
1186	=item cf::db_sync
1187
1188	Immediately write the database to disk I<if it is dirty>.
1189
1190	=cut
1191
1192	our $DB;
1193
1194	{
1195	my $path = cf::localdir . "/database.pst";
1196
1197	sub db_load() {
1198	warn "loading database $path\n";#d# remove later
1199	$DB = stat $path ? Storable::retrieve $path : { };
1200	}
1201
1202	my $pid;
1203
1204	sub db_save() {
1205	warn "saving database $path\n";#d# remove later
1206	waitpid $pid, 0 if $pid;
1207	if (0 == ($pid = fork)) {
1208	$DB->{_meta}{version} = 1;
1209	Storable::nstore $DB, "$path~";
1210	rename "$path~", $path;
1211	cf::_exit 0 if defined $pid;
1212	}
1213	}
1214
1215	my $dirty;
1216
1217	sub db_sync() {
1218	db_save if $dirty;
1219	undef $dirty;
1220	}
1221
1222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1223	db_sync;
1224	});	3009	};
		3010	cf::cede_to_tick;
1225		3011
1226	sub db_dirty() {
1227	$dirty = 1;
1228	$idle->start;
1229	}	3012	{
		3013	my $faces = $facedata->{faceinfo};
1230		3014
1231	sub db_get($;$) {	3015	while (my ($face, $info) = each %$faces) {
1232	@_ >= 2	3016	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1233	? $DB->{$_[0]}{$_[1]}	3017	cf::face::set_visibility $idx, $info->{visibility};
1234	: ($DB->{$_[0]} ||= { })	3018	cf::face::set_magicmap $idx, $info->{magicmap};
1235	}	3019	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3020	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1236		3021
1237	sub db_put($$;$) {	3022	cf::cede_to_tick;
1238	if (@_ >= 3) {
1239	$DB->{$_[0]}{$_[1]} = $_[2];
1240	} else {
1241	$DB->{$_[0]} = $_[1];
1242	}
1243	db_dirty;
1244	}
1245
1246	cf::global->attach (
1247	prio => 10000,
1248	on_cleanup => sub {
1249	db_sync;
1250	},	3023	}
1251	);
1252	}
1253		3024
1254	#############################################################################	3025	while (my ($face, $info) = each %$faces) {
1255	# the server's main()	3026	next unless $info->{smooth};
		3027	my $idx = cf::face::find $face
		3028	or next;
		3029	if (my $smooth = cf::face::find $info->{smooth}) {
		3030	cf::face::set_smooth $idx, $smooth;
		3031	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3032	} else {
		3033	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3034	}
1256		3035
1257	sub cfg_load {	3036	cf::cede_to_tick;
		3037	}
		3038	}
		3039
		3040	{
		3041	my $anims = $facedata->{animinfo};
		3042
		3043	while (my ($anim, $info) = each %$anims) {
		3044	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	cf::anim::invalidate_all; # d'oh
		3049	}
		3050
		3051	{
		3052	# TODO: for gcfclient pleasure, we should give resources
		3053	# that gcfclient doesn't grok a >10000 face index.
		3054	my $res = $facedata->{resource};
		3055
		3056	my $soundconf = delete $res->{"res/sound.conf"};
		3057
		3058	while (my ($name, $info) = each %$res) {
		3059	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3060	my $data;
		3061
		3062	if ($info->{type} & 1) {
		3063	# prepend meta info
		3064
		3065	my $meta = $enc->encode ({
		3066	name => $name,
		3067	%{ $info->{meta} || {} },
		3068	});
		3069
		3070	$data = pack "(w/a*)*", $meta, $info->{data};
		3071	} else {
		3072	$data = $info->{data};
		3073	}
		3074
		3075	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3076	cf::face::set_type $idx, $info->{type};
		3077
		3078	cf::cede_to_tick;
		3079	}
		3080
		3081	if ($soundconf) {
		3082	$soundconf = $enc->decode (delete $soundconf->{data});
		3083
		3084	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3085	my $sound = $soundconf->{compat}[$_]
		3086	or next;
		3087
		3088	my $face = cf::face::find "sound/$sound->[1]";
		3089	cf::sound::set $sound->[0] => $face;
		3090	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3091	}
		3092
		3093	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3094	my $face = cf::face::find "sound/$v";
		3095	cf::sound::set $k => $face;
		3096	}
		3097	}
		3098	}
		3099
		3100	1
		3101	}
		3102
		3103	register_exticmd fx_want => sub {
		3104	my ($ns, $want) = @_;
		3105
		3106	while (my ($k, $v) = each %$want) {
		3107	$ns->fx_want ($k, $v);
		3108	}
		3109	};
		3110
		3111	sub reload_regions {
		3112	# HACK to clear player env face cache, we need some signal framework
		3113	# for this (global event?)
		3114	%ext::player_env::MUSIC_FACE_CACHE = ();
		3115
		3116	load_resource_file "$MAPDIR/regions"
		3117	or die "unable to load regions file\n";
		3118
		3119	for (cf::region::list) {
		3120	$_->{match} = qr/$_->{match}/
		3121	if exists $_->{match};
		3122	}
		3123	}
		3124
		3125	sub reload_facedata {
		3126	load_facedata "$DATADIR/facedata"
		3127	or die "unable to load facedata\n";
		3128	}
		3129
		3130	sub reload_archetypes {
		3131	load_resource_file "$DATADIR/archetypes"
		3132	or die "unable to load archetypes\n";
		3133	#d# NEED to laod twice to resolve forward references
		3134	# this really needs to be done in an extra post-pass
		3135	# (which needs to be synchronous, so solve it differently)
		3136	load_resource_file "$DATADIR/archetypes"
		3137	or die "unable to load archetypes\n";
		3138	}
		3139
		3140	sub reload_treasures {
		3141	load_resource_file "$DATADIR/treasures"
		3142	or die "unable to load treasurelists\n";
		3143	}
		3144
		3145	sub reload_resources {
		3146	warn "reloading resource files...\n";
		3147
		3148	reload_regions;
		3149	reload_facedata;
		3150	#reload_archetypes;#d#
		3151	reload_archetypes;
		3152	reload_treasures;
		3153
		3154	warn "finished reloading resource files\n";
		3155	}
		3156
		3157	sub init {
		3158	reload_resources;
		3159	}
		3160
		3161	sub reload_config {
1258	open my $fh, "<:utf8", cf::confdir . "/config"	3162	open my $fh, "<:utf8", "$CONFDIR/config"
1259	or return;	3163	or return;
1260		3164
1261	local $/;	3165	local $/;
1262	*CFG = YAML::Syck::Load <$fh>;	3166	*CFG = YAML::Syck::Load <$fh>;
		3167
		3168	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3169
		3170	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3171	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3172
		3173	if (exists $CFG{mlockall}) {
		3174	eval {
		3175	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3176	and die "WARNING: m(un)lockall failed: $!\n";
		3177	};
		3178	warn $@ if $@;
		3179	}
1263	}	3180	}
1264		3181
1265	sub main {	3182	sub main {
1266	cfg_load;	3183	# we must not ever block the main coroutine
1267	db_load;	3184	local $Coro::idle = sub {
		3185	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3186	(async {
		3187	Event::one_event;
		3188	})->prio (Coro::PRIO_MAX);
		3189	};
		3190
		3191	reload_config;
		3192	db_init;
1268	load_extensions;	3193	load_extensions;
		3194
		3195	$TICK_WATCHER->start;
1269	Event::loop;	3196	Event::loop;
1270	}	3197	}
1271		3198
1272	#############################################################################	3199	#############################################################################
1273	# initialisation	3200	# initialisation and cleanup
1274		3201
1275	sub _perl_reload() {	3202	# install some emergency cleanup handlers
		3203	BEGIN {
		3204	for my $signal (qw(INT HUP TERM)) {
		3205	Event->signal (
		3206	reentrant => 0,
		3207	data => WF_AUTOCANCEL,
		3208	signal => $signal,
		3209	prio => 0,
		3210	cb => sub {
		3211	cf::cleanup "SIG$signal";
		3212	},
		3213	);
		3214	}
		3215	}
		3216
		3217	sub write_runtime {
		3218	my $runtime = "$LOCALDIR/runtime";
		3219
		3220	# first touch the runtime file to show we are still running:
		3221	# the fsync below can take a very very long time.
		3222
		3223	IO::AIO::aio_utime $runtime, undef, undef;
		3224
		3225	my $guard = cf::lock_acquire "write_runtime";
		3226
		3227	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3228	or return;
		3229
		3230	my $value = $cf::RUNTIME + 90 + 10;
		3231	# 10 is the runtime save interval, for a monotonic clock
		3232	# 60 allows for the watchdog to kill the server.
		3233
		3234	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3235	and return;
		3236
		3237	# always fsync - this file is important
		3238	aio_fsync $fh
		3239	and return;
		3240
		3241	# touch it again to show we are up-to-date
		3242	aio_utime $fh, undef, undef;
		3243
		3244	close $fh
		3245	or return;
		3246
		3247	aio_rename "$runtime~", $runtime
		3248	and return;
		3249
		3250	warn "runtime file written.\n";
		3251
		3252	1
		3253	}
		3254
		3255	sub emergency_save() {
		3256	my $freeze_guard = cf::freeze_mainloop;
		3257
		3258	warn "enter emergency perl save\n";
		3259
		3260	cf::sync_job {
		3261	# use a peculiar iteration method to avoid tripping on perl
		3262	# refcount bugs in for. also avoids problems with players
		3263	# and maps saved/destroyed asynchronously.
		3264	warn "begin emergency player save\n";
		3265	for my $login (keys %cf::PLAYER) {
		3266	my $pl = $cf::PLAYER{$login} or next;
		3267	$pl->valid or next;
		3268	$pl->save;
		3269	}
		3270	warn "end emergency player save\n";
		3271
		3272	warn "begin emergency map save\n";
		3273	for my $path (keys %cf::MAP) {
		3274	my $map = $cf::MAP{$path} or next;
		3275	$map->valid or next;
		3276	$map->save;
		3277	}
		3278	warn "end emergency map save\n";
		3279
		3280	warn "begin emergency database checkpoint\n";
		3281	BDB::db_env_txn_checkpoint $DB_ENV;
		3282	warn "end emergency database checkpoint\n";
		3283	};
		3284
		3285	warn "leave emergency perl save\n";
		3286	}
		3287
		3288	sub post_cleanup {
		3289	my ($make_core) = @_;
		3290
		3291	warn Carp::longmess "post_cleanup backtrace"
		3292	if $make_core;
		3293	}
		3294
		3295	sub do_reload_perl() {
		3296	# can/must only be called in main
		3297	if ($Coro::current != $Coro::main) {
		3298	warn "can only reload from main coroutine";
		3299	return;
		3300	}
		3301
1276	warn "reloading...";	3302	warn "reloading...";
1277		3303
1278	eval {	3304	warn "entering sync_job";
1279	local $FREEZE = 1;
1280		3305
		3306	cf::sync_job {
		3307	cf::write_runtime; # external watchdog should not bark
1281	cf::emergency_save;	3308	cf::emergency_save;
		3309	cf::write_runtime; # external watchdog should not bark
1282		3310
1283	# cancel all watchers	3311	warn "syncing database to disk";
		3312	BDB::db_env_txn_checkpoint $DB_ENV;
		3313
		3314	# if anything goes wrong in here, we should simply crash as we already saved
		3315
		3316	warn "cancelling all WF_AUTOCANCEL watchers";
1284	for (Event::all_watchers) {	3317	for (Event::all_watchers) {
1285	$_->cancel if $_->data & WF_AUTOCANCEL;	3318	$_->cancel if $_->data & WF_AUTOCANCEL;
1286	}	3319	}
1287		3320
		3321	warn "flushing outstanding aio requests";
		3322	for (;;) {
		3323	BDB::flush;
		3324	IO::AIO::flush;
		3325	Coro::cede;
		3326	last unless IO::AIO::nreqs || BDB::nreqs;
		3327	warn "iterate...";
		3328	}
		3329
		3330	++$RELOAD;
		3331
1288	# cancel all extension coros	3332	warn "cancelling all extension coros";
1289	$_->cancel for values %EXT_CORO;	3333	$_->cancel for values %EXT_CORO;
1290	%EXT_CORO = ();	3334	%EXT_CORO = ();
1291		3335
1292	# unload all extensions	3336	warn "removing commands";
1293	for (@exts) {	3337	%COMMAND = ();
		3338
		3339	warn "removing ext/exti commands";
		3340	%EXTCMD = ();
		3341	%EXTICMD = ();
		3342
		3343	warn "unloading/nuking all extensions";
		3344	for my $pkg (@EXTS) {
1294	warn "unloading <$_>";	3345	warn "... unloading $pkg";
1295	unload_extension $_;	3346
		3347	if (my $cb = $pkg->can ("unload")) {
		3348	eval {
		3349	$cb->($pkg);
		3350	1
		3351	} or warn "$pkg unloaded, but with errors: $@";
1296	}	3352	}
1297		3353
		3354	warn "... nuking $pkg";
		3355	Symbol::delete_package $pkg;
		3356	}
		3357
1298	# unload all modules loaded from $LIBDIR	3358	warn "unloading all perl modules loaded from $LIBDIR";
1299	while (my ($k, $v) = each %INC) {	3359	while (my ($k, $v) = each %INC) {
1300	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1301		3361
1302	warn "removing <$k>";	3362	warn "... unloading $k";
1303	delete $INC{$k};	3363	delete $INC{$k};
1304		3364
1305	$k =~ s/\.pm$//;	3365	$k =~ s/\.pm$//;
1306	$k =~ s/\//::/g;	3366	$k =~ s/\//::/g;
1307		3367
…		…
1310	}	3370	}
1311		3371
1312	Symbol::delete_package $k;	3372	Symbol::delete_package $k;
1313	}	3373	}
1314		3374
1315	# sync database to disk
1316	cf::db_sync;
1317	IO::AIO::flush;
1318
1319	# get rid of safe::, as good as possible	3375	warn "getting rid of safe::, as good as possible";
1320	Symbol::delete_package "safe::$_"	3376	Symbol::delete_package "safe::$_"
1321	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1322		3378
1323	# remove register_script_function callbacks
1324	# TODO
1325
1326	# unload cf.pm "a bit"	3379	warn "unloading cf.pm \"a bit\"";
1327	delete $INC{"cf.pm"};	3380	delete $INC{"cf.pm"};
		3381	delete $INC{"cf/pod.pm"};
1328		3382
1329	# don't, removes xs symbols, too,	3383	# don't, removes xs symbols, too,
1330	# and global variables created in xs	3384	# and global variables created in xs
1331	#Symbol::delete_package __PACKAGE__;	3385	#Symbol::delete_package __PACKAGE__;
1332		3386
1333	# reload cf.pm	3387	warn "unload completed, starting to reload now";
		3388
1334	warn "reloading cf.pm";	3389	warn "reloading cf.pm";
1335	require cf;	3390	require cf;
1336	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1337		3392
1338	# load config and database again	3393	warn "loading config and database again";
1339	cf::cfg_load;	3394	cf::reload_config;
1340	cf::db_load;
1341		3395
1342	# load extensions
1343	warn "load extensions";	3396	warn "loading extensions";
1344	cf::load_extensions;	3397	cf::load_extensions;
1345		3398
1346	# reattach attachments to objects	3399	warn "reattaching attachments to objects/players";
1347	warn "reattach";	3400	_global_reattach; # objects, sockets
1348	_global_reattach;	3401	warn "reattaching attachments to maps";
		3402	reattach $_ for values %MAP;
		3403	warn "reattaching attachments to players";
		3404	reattach $_ for values %PLAYER;
		3405
		3406	warn "leaving sync_job";
		3407
		3408	1
		3409	} or do {
		3410	warn $@;
		3411	warn "error while reloading, exiting.";
		3412	exit 1;
1349	};	3413	};
1350	warn $@ if $@;
1351		3414
1352	warn "reloaded";	3415	warn "reloaded";
1353	};	3416	};
1354		3417
1355	sub perl_reload() {	3418	our $RELOAD_WATCHER; # used only during reload
1356	_perl_reload;
1357	}
1358		3419
1359	register "<global>", __PACKAGE__;	3420	sub reload_perl() {
		3421	# doing reload synchronously and two reloads happen back-to-back,
		3422	# coro crashes during coro_state_free->destroy here.
1360		3423
		3424	$RELOAD_WATCHER ||= Event->timer (
		3425	reentrant => 0,
		3426	after => 0,
		3427	data => WF_AUTOCANCEL,
		3428	cb => sub {
		3429	do_reload_perl;
		3430	undef $RELOAD_WATCHER;
		3431	},
		3432	);
		3433	}
		3434
1361	register_command "perl-reload" => sub {	3435	register_command "reload" => sub {
1362	my ($who, $arg) = @_;	3436	my ($who, $arg) = @_;
1363		3437
1364	if ($who->flag (FLAG_WIZ)) {	3438	if ($who->flag (FLAG_WIZ)) {
1365	$who->message ("reloading...");	3439	$who->message ("reloading server.");
1366	_perl_reload;	3440	async { reload_perl };
1367	}	3441	}
1368	};	3442	};
1369		3443
1370	unshift @INC, $LIBDIR;	3444	unshift @INC, $LIBDIR;
		3445
		3446	my $bug_warning = 0;
		3447
		3448	our @WAIT_FOR_TICK;
		3449	our @WAIT_FOR_TICK_BEGIN;
		3450
		3451	sub wait_for_tick {
		3452	return unless $TICK_WATCHER->is_active;
		3453	return if $Coro::current == $Coro::main;
		3454
		3455	my $signal = new Coro::Signal;
		3456	push @WAIT_FOR_TICK, $signal;
		3457	$signal->wait;
		3458	}
		3459
		3460	sub wait_for_tick_begin {
		3461	return unless $TICK_WATCHER->is_active;
		3462	return if $Coro::current == $Coro::main;
		3463
		3464	my $signal = new Coro::Signal;
		3465	push @WAIT_FOR_TICK_BEGIN, $signal;
		3466	$signal->wait;
		3467	}
1371		3468
1372	$TICK_WATCHER = Event->timer (	3469	$TICK_WATCHER = Event->timer (
1373	reentrant => 0,	3470	reentrant => 0,
		3471	parked => 1,
1374	prio => 0,	3472	prio => 0,
1375	at => $NEXT_TICK || $TICK,	3473	at => $NEXT_TICK || $TICK,
1376	data => WF_AUTOCANCEL,	3474	data => WF_AUTOCANCEL,
1377	cb => sub {	3475	cb => sub {
1378	unless ($FREEZE) {	3476	if ($Coro::current != $Coro::main) {
		3477	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3478	unless ++$bug_warning > 10;
		3479	return;
		3480	}
		3481
		3482	$NOW = $tick_start = Event::time;
		3483
1379	cf::server_tick; # one server iteration	3484	cf::server_tick; # one server iteration
		3485
1380	$RUNTIME += $TICK;	3486	$RUNTIME += $TICK;
1381	}
1382
1383	$NEXT_TICK += $TICK;	3487	$NEXT_TICK += $TICK;
1384		3488
		3489	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3490	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3491	Coro::async_pool {
		3492	write_runtime
		3493	or warn "ERROR: unable to write runtime file: $!";
		3494	};
		3495	}
		3496
		3497	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3498	$sig->send;
		3499	}
		3500	while (my $sig = shift @WAIT_FOR_TICK) {
		3501	$sig->send;
		3502	}
		3503
		3504	$NOW = Event::time;
		3505
1385	# if we are delayed by four ticks or more, skip them all	3506	# if we are delayed by four ticks or more, skip them all
1386	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3507	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1387		3508
1388	$TICK_WATCHER->at ($NEXT_TICK);	3509	$TICK_WATCHER->at ($NEXT_TICK);
1389	$TICK_WATCHER->start;	3510	$TICK_WATCHER->start;
		3511
		3512	$LOAD = ($NOW - $tick_start) / $TICK;
		3513	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3514
		3515	_post_tick;
1390	},	3516	},
1391	);	3517	);
1392		3518
		3519	{
		3520	BDB::min_parallel 8;
		3521	BDB::max_poll_time $TICK * 0.1;
		3522	$BDB_POLL_WATCHER = Event->io (
		3523	reentrant => 0,
		3524	fd => BDB::poll_fileno,
		3525	poll => 'r',
		3526	prio => 0,
		3527	data => WF_AUTOCANCEL,
		3528	cb => \&BDB::poll_cb,
		3529	);
		3530
		3531	BDB::set_sync_prepare {
		3532	my $status;
		3533	my $current = $Coro::current;
		3534	(
		3535	sub {
		3536	$status = $!;
		3537	$current->ready; undef $current;
		3538	},
		3539	sub {
		3540	Coro::schedule while defined $current;
		3541	$! = $status;
		3542	},
		3543	)
		3544	};
		3545
		3546	unless ($DB_ENV) {
		3547	$DB_ENV = BDB::db_env_create;
		3548
		3549	cf::sync_job {
		3550	eval {
		3551	BDB::db_env_open
		3552	$DB_ENV,
		3553	$BDBDIR,
		3554	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3555	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3556	0666;
		3557
		3558	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3559
		3560	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3561	| BDB::LOG_AUTOREMOVE, 1);
		3562	$DB_ENV->set_lk_detect;
		3563	};
		3564
		3565	cf::cleanup "db_env_open(db): $@" if $@;
		3566	};
		3567	}
		3568
		3569	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3570	after => 11,
		3571	interval => 60,
		3572	hard => 1,
		3573	prio => 0,
		3574	data => WF_AUTOCANCEL,
		3575	cb => sub {
		3576	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3577	},
		3578	);
		3579	$BDB_TRICKLE_WATCHER = Event->timer (
		3580	after => 5,
		3581	interval => 10,
		3582	hard => 1,
		3583	prio => 0,
		3584	data => WF_AUTOCANCEL,
		3585	cb => sub {
		3586	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3587	},
		3588	);
		3589	}
		3590
		3591	{
		3592	IO::AIO::min_parallel 8;
		3593
		3594	undef $Coro::AIO::WATCHER;
1393	IO::AIO::max_poll_time $TICK * 0.2;	3595	IO::AIO::max_poll_time $TICK * 0.1;
1394		3596	$AIO_POLL_WATCHER = Event->io (
1395	Event->io (fd => IO::AIO::poll_fileno,	3597	reentrant => 0,
1396	poll => 'r',
1397	prio => 5,
1398	data => WF_AUTOCANCEL,	3598	data => WF_AUTOCANCEL,
		3599	fd => IO::AIO::poll_fileno,
		3600	poll => 'r',
		3601	prio => 6,
1399	cb => \&IO::AIO::poll_cb);	3602	cb => \&IO::AIO::poll_cb,
		3603	);
		3604	}
1400		3605
1401	# we must not ever block the main coroutine	3606	my $_log_backtrace;
1402	$Coro::idle = sub {	3607
1403	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3608	sub _log_backtrace {
1404	warn "FATAL: Coro::idle was called, major BUG\n";	3609	my ($msg, @addr) = @_;
1405	(Coro::unblock_sub {	3610
1406	Event::one_event;	3611	$msg =~ s/\n//;
1407	})->();	3612
1408	};	3613	# limit the # of concurrent backtraces
		3614	if ($_log_backtrace < 2) {
		3615	++$_log_backtrace;
		3616	async {
		3617	my @bt = fork_call {
		3618	@addr = map { sprintf "%x", $_ } @addr;
		3619	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3620	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3621	or die "addr2line: $!";
		3622
		3623	my @funcs;
		3624	my @res = <$fh>;
		3625	chomp for @res;
		3626	while (@res) {
		3627	my ($func, $line) = splice @res, 0, 2, ();
		3628	push @funcs, "[$func] $line";
		3629	}
		3630
		3631	@funcs
		3632	};
		3633
		3634	LOG llevInfo, "[ABT] $msg\n";
		3635	LOG llevInfo, "[ABT] $_\n" for @bt;
		3636	--$_log_backtrace;
		3637	};
		3638	} else {
		3639	LOG llevInfo, "[ABT] $msg\n";
		3640	LOG llevInfo, "[ABT] [suppressed]\n";
		3641	}
		3642	}
		3643
		3644	# load additional modules
		3645	use cf::pod;
		3646
		3647	END { cf::emergency_save }
1409		3648
1410	1	3649	1
1411		3650

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