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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 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 3.61 ();
		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;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	93
55	our $RANDOM_MAPS = cf::localdir . "/random";	94	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
57		100
58	binmode STDOUT;	101	binmode STDOUT;
59	binmode STDERR;	102	binmode STDERR;
60		103
61	# read virtual server time, if available	104	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
66	}	109	}
67		110
68	mkdir cf::localdir;	111	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		113
74	# a special map that is always available	114	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		115
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	116	sub cf::map::normalise;
78		117
79	#############################################################################	118	#############################################################################
80		119
81	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
82		121
…		…
89	=item $cf::RUNTIME	128	=item $cf::RUNTIME
90		129
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	131	every server tick.
93		132
94	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		136
96	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
98		141
99	=item $cf::NOW	142	=item $cf::NOW
100		143
101	The time of the last (current) server tick.	144	The time of the last (current) server tick.
102		145
103	=item $cf::TICK	146	=item $cf::TICK
104		147
105	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
106		159
107	=item %cf::CFG	160	=item %cf::CFG
108		161
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		170
112	=back	171	=back
113		172
114	=cut	173	=cut
115		174
116	BEGIN {	175	BEGIN {
117	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	177	my $msg = join "", @_;
119	utf8::encode $msg;
120		178
121	$msg .= "\n"	179	$msg .= "\n"
122	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
123		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
125	};	186	};
126	}	187	}
127		188
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		196
135	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	198	# within the Safe compartment.
137	for my $pkg (qw(	199	for my $pkg (qw(
138	cf::global cf::attachable	200	cf::global cf::attachable
…		…
147		209
148	$Event::DIED = sub {	210	$Event::DIED = sub {
149	warn "error in event callback: @_";	211	warn "error in event callback: @_";
150	};	212	};
151		213
152	my %ext_pkg;	214	#############################################################################
153	my @exts;
154	my @hook;
155		215
156	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
157		217
158	=over 4	218	=over 4
159		219
160	=cut	220	=item dumpval $ref
161		221
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
163		242
164	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
165		244
166	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
167		246
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
176		248
177	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
178		250
179	=cut	251	=cut
180		252
181	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
183	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
		257
		258	=item cf::lock_wait $string
		259
		260	Wait until the given lock is available. See cf::lock_acquire.
		261
		262	=item my $lock = cf::lock_acquire $string
		263
		264	Wait until the given lock is available and then acquires it and returns
		265	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		266	for example when the coroutine gets canceled), the lock is automatically
		267	returned.
		268
		269	Lock names should begin with a unique identifier (for example, cf::map::find
		270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
		276	=cut
		277
		278	our %LOCK;
		279
		280	sub lock_wait($) {
		281	my ($key) = @_;
		282
		283	# wait for lock, if any
		284	while ($LOCK{$key}) {
		285	push @{ $LOCK{$key} }, $Coro::current;
		286	Coro::schedule;
		287	}
184	}	288	}
		289
		290	sub lock_acquire($) {
		291	my ($key) = @_;
		292
		293	# wait, to be sure we are not locked
		294	lock_wait $key;
		295
		296	$LOCK{$key} = [];
		297
		298	Coro::guard {
		299	# wake up all waiters, to be on the safe side
		300	$_->ready for @{ delete $LOCK{$key} };
		301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
		310	sub freeze_mainloop {
		311	return unless $TICK_WATCHER->is_active;
		312
		313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
		316	$TICK_WATCHER->stop;
		317	$guard
		318	}
		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
185		329
186	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
187		331
188	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
191		336
192	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
195	fast or be very important.	340	fast or be very important.
…		…
198		343
199	sub sync_job(&) {	344	sub sync_job(&) {
200	my ($job) = @_;	345	my ($job) = @_;
201		346
202	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
203	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
205		352
206	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	354	# (but this is cancel-safe)
208	local $FREEZE = 1;	355	my $freeze_guard = freeze_mainloop;
209		356
210	my $busy = 1;	357	my $busy = 1;
211	my @res;	358	my @res;
212		359
213	(Coro::async {	360	(async {
214	@res = eval { $job->() };	361	@res = eval { $job->() };
215	warn $@ if $@;	362	warn $@ if $@;
216	undef $busy;	363	undef $busy;
217	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
218		365
219	while ($busy) {	366	while ($busy) {
220	Coro::cede_notself;	367	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	368	}
		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
223		376
224	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
225	} else {	378	} else {
226	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
227		380
228	$job->()	381	$job->()
229	}	382	}
230	}	383	}
231		384
232	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
233		386
234	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
236		389
237	=cut	390	=cut
238		391
239	sub coro(&) {	392	sub async_ext(&) {
240	my $cb = shift;	393	my $cb = shift;
241		394
242	my $coro; $coro = async {	395	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		396
249	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
251	});	399	});
252	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
253		401
254	$coro	402	$coro
255	}	403	}
256		404
257	sub write_runtime {	405	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		406
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
261	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
262		411
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		413
267	aio_fsync $fh	414	sub fork_call(&@) {
268	and return;	415	my ($cb, @args) = @_;
269		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
270	close $fh	423	close $fh2;
271	or return;
272		424
273	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
274	and return;	426	warn "pst<$res>" unless $res =~ /^pst/;
		427	$res = Coro::Storable::thaw $res;
275		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	Carp::confess $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	local $Coro::idle;
		439	$Coro::current->prio (Coro::PRIO_MAX);
		440	eval {
		441	close $fh1;
		442
		443	my @res = eval { $cb->(@args) };
		444
		445	open my $fh, ">", \my $buf
		446	or die "fork_call: cannot open fh-to-buf in child : $!";
		447	Storable::store_fd +($@ ? \"$@" : \@res), $fh;
		448	close $fh;
		449
		450	warn "writing ", length $buf;
		451	my $x;
		452	(length $buf) == ($x = syswrite $fh2, $buf)
		453	or warn "error writing ".(length $buf)." != $x\n";
		454	close $fh2;
		455	};
		456
		457	warn $@ if $@;
		458	_exit 0;
276	1	459	}
		460	}
		461
		462	=item $value = cf::db_get $family => $key
		463
		464	Returns a single value from the environment database.
		465
		466	=item cf::db_put $family => $key => $value
		467
		468	Stores the given C<$value> in the family. It can currently store binary
		469	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		470
		471	=cut
		472
		473	our $DB;
		474
		475	sub db_init {
		476	unless ($DB) {
		477	$DB = BDB::db_create $DB_ENV;
		478
		479	cf::sync_job {
		480	eval {
		481	$DB->set_flags (BDB::CHKSUM);
		482
		483	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		484	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		485	cf::cleanup "db_open(db): $!" if $!;
		486	};
		487	cf::cleanup "db_open(db): $@" if $@;
		488	};
		489	}
		490	}
		491
		492	sub db_get($$) {
		493	my $key = "$_[0]/$_[1]";
		494
		495	cf::sync_job {
		496	BDB::db_get $DB, undef, $key, my $data;
		497
		498	$! ? ()
		499	: $data
		500	}
		501	}
		502
		503	sub db_put($$$) {
		504	BDB::dbreq_pri 4;
		505	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		506	}
		507
		508	=item cf::cache $id => [$paths...], $processversion => $process
		509
		510	Generic caching function that returns the value of the resource $id,
		511	caching and regenerating as required.
		512
		513	This function can block.
		514
		515	=cut
		516
		517	sub cache {
		518	my ($id, $src, $processversion, $process) = @_;
		519
		520	my $meta =
		521	join "\x00",
		522	$processversion,
		523	map {
		524	aio_stat $_
		525	and Carp::croak "$_: $!";
		526
		527	($_, (stat _)[7,9])
		528	} @$src;
		529
		530	my $dbmeta = db_get cache => "$id/meta";
		531	if ($dbmeta ne $meta) {
		532	# changed, we may need to process
		533
		534	my @data;
		535	my $md5;
		536
		537	for (0 .. $#$src) {
		538	0 <= aio_load $src->[$_], $data[$_]
		539	or Carp::croak "$src->[$_]: $!";
		540	}
		541
		542	# if processing is expensive, check
		543	# checksum first
		544	if (1) {
		545	$md5 =
		546	join "\x00",
		547	$processversion,
		548	map {
		549	Coro::cede;
		550	($src->[$_], Digest::MD5::md5_hex $data[$_])
		551	} 0.. $#$src;
		552
		553
		554	my $dbmd5 = db_get cache => "$id/md5";
		555	if ($dbmd5 eq $md5) {
		556	db_put cache => "$id/meta", $meta;
		557
		558	return db_get cache => "$id/data";
		559	}
		560	}
		561
		562	my $t1 = Time::HiRes::time;
		563	my $data = $process->(\@data);
		564	my $t2 = Time::HiRes::time;
		565
		566	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		567
		568	db_put cache => "$id/data", $data;
		569	db_put cache => "$id/md5" , $md5;
		570	db_put cache => "$id/meta", $meta;
		571
		572	return $data;
		573	}
		574
		575	db_get cache => "$id/data"
		576	}
		577
		578	=item cf::datalog type => key => value, ...
		579
		580	Log a datalog packet of the given type with the given key-value pairs.
		581
		582	=cut
		583
		584	sub datalog($@) {
		585	my ($type, %kv) = @_;
		586	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	587	}
278		588
279	=back	589	=back
280		590
281	=cut	591	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		592
393	#############################################################################	593	#############################################################################
394		594
395	=head2 ATTACHABLE OBJECTS	595	=head2 ATTACHABLE OBJECTS
396		596
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	598	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	599	to it. All such attachable objects support the following methods.
400		600
401	In the following description, CLASS can be any of C<global>, C<object>	601	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	602	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	603	Crossfire TRT).
404		604
405	=over 4	605	=over 4
406		606
407	=item $attachable->attach ($attachment, key => $value...)	607	=item $attachable->attach ($attachment, key => $value...)
408		608
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	722	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	723	our @CB_MAP = ();
524		724
525	my %attachment;	725	my %attachment;
526		726
		727	sub cf::attachable::thawer_merge {
		728	# simply override everything except _meta
		729	local $_[0]{_meta};
		730	%{$_[0]} = %{$_[1]};
		731	}
		732
527	sub _attach_cb($$$$) {	733	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	734	my ($registry, $event, $prio, $cb) = @_;
529		735
530	use sort 'stable';	736	use sort 'stable';
531		737
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	771	$registry = $CB_TYPE[$object_type] ||= [];
566		772
567	} elsif ($type eq "subtype") {	773	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	774	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	775	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	776	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		777
572	} elsif ($type eq "package") {	778	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	779	my $pkg = shift @arg;
574		780
575	while (my ($name, $id) = each %cb_id) {	781	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	810	_attach $registry, $klass, @attach;
605	}	811	}
606		812
607	$obj->{$name} = \%arg;	813	$obj->{$name} = \%arg;
608	} else {	814	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	815	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	816	}
611		817
612	$obj->{_attachment}{$name} = undef;	818	$obj->{_attachment}{$name} = undef;
613	}	819	}
614		820
…		…
616	if (ref $_[0]) {	822	if (ref $_[0]) {
617	_object_attach @_;	823	_object_attach @_;
618	} else {	824	} else {
619	_attach shift->_attach_registry, @_;	825	_attach shift->_attach_registry, @_;
620	}	826	}
		827	_recalc_want;
621	};	828	};
622		829
623	# all those should be optimised	830	# all those should be optimised
624	sub cf::attachable::detach {	831	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	835	delete $obj->{_attachment}{$name};
629	reattach ($obj);	836	reattach ($obj);
630	} else {	837	} else {
631	Carp::croak "cannot, currently, detach class attachments";	838	Carp::croak "cannot, currently, detach class attachments";
632	}	839	}
		840	_recalc_want;
633	};	841	};
634		842
635	sub cf::attachable::attached {	843	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
637		845
…		…
702	# object support	910	# object support
703		911
704	sub reattach {	912	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	913	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	914	my ($obj) = @_;
		915
		916	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		917
708	my $registry = $obj->registry;	918	my $registry = $obj->registry;
709		919
710	@$registry = ();	920	@$registry = ();
711		921
…		…
758	$filename, length $$rdata, scalar @$objs;	968	$filename, length $$rdata, scalar @$objs;
759		969
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	970	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	971	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	972	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	973	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	974	close $fh;
765		975
766	if (@$objs) {	976	if (@$objs) {
767	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	977	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	978	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	979	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	980	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	981	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	982	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	983	aio_rename "$filename.pst~", "$filename.pst";
774	}	984	}
775	} else {	985	} else {
776	aio_unlink "$filename.pst";	986	aio_unlink "$filename.pst";
…		…
804	or return;	1014	or return;
805		1015
806	unless (aio_stat "$filename.pst") {	1016	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	1017	(aio_load "$filename.pst", $av) >= 0
808	or return;	1018	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	1019	$av = eval { (Storable::thaw $av)->{objs} };
810	}	1020	}
811		1021
		1022	warn sprintf "loading %s (%d)\n",
		1023	$filename, length $data, scalar @{$av || []};
812	return ($data, $av);	1024	return ($data, $av);
813	}	1025	}
		1026
		1027	=head2 COMMAND CALLBACKS
		1028
		1029	=over 4
		1030
		1031	=cut
814		1032
815	#############################################################################	1033	#############################################################################
816	# command handling &c	1034	# command handling &c
817		1035
818	=item cf::register_command $name => \&callback($ob,$args);	1036	=item cf::register_command $name => \&callback($ob,$args);
…		…
831	push @{ $COMMAND{$name} }, [$caller, $cb];	1049	push @{ $COMMAND{$name} }, [$caller, $cb];
832	}	1050	}
833		1051
834	=item cf::register_extcmd $name => \&callback($pl,$packet);	1052	=item cf::register_extcmd $name => \&callback($pl,$packet);
835		1053
836	Register a callbackf ro execution when the client sends an extcmd packet.	1054	Register a callback for execution when the client sends an (synchronous)
		1055	extcmd packet. Ext commands will be processed in the order they are
		1056	received by the server, like other user commands. The first argument is
		1057	the logged-in player. Ext commands can only be processed after a player
		1058	has logged in successfully.
837		1059
838	If the callback returns something, it is sent back as if reply was being	1060	If the callback returns something, it is sent back as if reply was being
839	called.	1061	called.
840		1062
		1063	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1064
		1065	Register a callback for execution when the client sends an (asynchronous)
		1066	exticmd packet. Exti commands are processed by the server as soon as they
		1067	are received, i.e. out of order w.r.t. other commands. The first argument
		1068	is a client socket. Exti commands can be received anytime, even before
		1069	log-in.
		1070
		1071	If the callback returns something, it is sent back as if reply was being
		1072	called.
		1073
841	=cut	1074	=cut
842		1075
843	sub register_extcmd {	1076	sub register_extcmd {
844	my ($name, $cb) = @_;	1077	my ($name, $cb) = @_;
845		1078
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	1079	$EXTCMD{$name} = $cb;
		1080	}
		1081
		1082	sub register_exticmd {
		1083	my ($name, $cb) = @_;
		1084
		1085	$EXTICMD{$name} = $cb;
850	}	1086	}
851		1087
852	cf::player->attach (	1088	cf::player->attach (
853	on_command => sub {	1089	on_command => sub {
854	my ($pl, $name, $params) = @_;	1090	my ($pl, $name, $params) = @_;
…		…
863	cf::override;	1099	cf::override;
864	},	1100	},
865	on_extcmd => sub {	1101	on_extcmd => sub {
866	my ($pl, $buf) = @_;	1102	my ($pl, $buf) = @_;
867		1103
868	my $msg = eval { from_json $buf };	1104	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
869		1105
870	if (ref $msg) {	1106	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1107	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	1108	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	1109	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	1110	}
875	}	1111	}
876	} else {	1112	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1113	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		1115
880	cf::override;	1116	cf::override;
881	},	1117	},
882	);	1118	);
883		1119
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	1120	sub load_extensions {
		1121	cf::sync_job {
		1122	my %todo;
		1123
		1124	for my $path (<$LIBDIR/*.ext>) {
		1125	next unless -r $path;
		1126
		1127	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1128	my $base = $1;
		1129	my $pkg = $1;
		1130	$pkg =~ s/[^[:word:]]/_/g;
		1131	$pkg = "ext::$pkg";
		1132
		1133	open my $fh, "<:utf8", $path
		1134	or die "$path: $!";
		1135
		1136	my $source = do { local $/; <$fh> };
		1137
		1138	my %ext = (
		1139	path => $path,
		1140	base => $base,
		1141	pkg => $pkg,
		1142	);
		1143
		1144	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1145	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1146
		1147	$ext{source} =
		1148	"package $pkg; use strict; use utf8;\n"
		1149	. "#line 1 \"$path\"\n{\n"
		1150	. $source
		1151	. "\n};\n1";
		1152
		1153	$todo{$base} = \%ext;
		1154	}
		1155
		1156	my %done;
		1157	while (%todo) {
		1158	my $progress;
		1159
		1160	while (my ($k, $v) = each %todo) {
		1161	for (split /,\s*/, $v->{meta}{depends}) {
		1162	goto skip
		1163	unless exists $done{$_};
		1164	}
		1165
		1166	warn "... loading '$k' into '$v->{pkg}'\n";
		1167
		1168	unless (eval $v->{source}) {
		1169	my $msg = $@ ? "$v->{path}: $@\n"
		1170	: "$v->{base}: extension inactive.\n";
		1171
		1172	if (exists $v->{meta}{mandatory}) {
		1173	warn $msg;
		1174	warn "mandatory extension failed to load, exiting.\n";
		1175	exit 1;
		1176	}
		1177
		1178	warn $msg;
		1179	}
		1180
		1181	$done{$k} = delete $todo{$k};
		1182	push @EXTS, $v->{pkg};
		1183	$progress = 1;
		1184	}
		1185
		1186	skip:
		1187	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1188	unless $progress;
		1189	}
		1190	};
		1191	}
		1192
		1193	#############################################################################
		1194
		1195	=back
		1196
		1197	=head2 CORE EXTENSIONS
		1198
		1199	Functions and methods that extend core crossfire objects.
		1200
		1201	=cut
		1202
		1203	package cf::player;
		1204
		1205	use Coro::AIO;
		1206
		1207	=head3 cf::player
		1208
		1209	=over 4
		1210
		1211	=item cf::player::find $login
		1212
		1213	Returns the given player object, loading it if necessary (might block).
		1214
		1215	=cut
		1216
		1217	sub playerdir($) {
		1218	"$PLAYERDIR/"
		1219	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1220	}
		1221
		1222	sub path($) {
		1223	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1224
		1225	(playerdir $login) . "/playerdata"
		1226	}
		1227
		1228	sub find_active($) {
		1229	$cf::PLAYER{$_[0]}
		1230	and $cf::PLAYER{$_[0]}->active
		1231	and $cf::PLAYER{$_[0]}
		1232	}
		1233
		1234	sub exists($) {
		1235	my ($login) = @_;
		1236
		1237	$cf::PLAYER{$login}
		1238	or cf::sync_job { !aio_stat path $login }
		1239	}
		1240
		1241	sub find($) {
		1242	return $cf::PLAYER{$_[0]} || do {
		1243	my $login = $_[0];
		1244
		1245	my $guard = cf::lock_acquire "user_find:$login";
		1246
		1247	$cf::PLAYER{$_[0]} || do {
		1248	# rename old playerfiles to new ones
		1249	#TODO: remove when no longer required
		1250	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1251	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1252	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1253	aio_unlink +(playerdir $login) . "/$login.pl";
		1254
		1255	my $pl = load_pl path $login
		1256	or return;
		1257	$cf::PLAYER{$login} = $pl
		1258	}
		1259	}
		1260	}
		1261
		1262	sub save($) {
		1263	my ($pl) = @_;
		1264
		1265	return if $pl->{deny_save};
		1266
		1267	my $path = path $pl;
		1268	my $guard = cf::lock_acquire "user_save:$path";
		1269
		1270	return if $pl->{deny_save};
		1271
		1272	aio_mkdir playerdir $pl, 0770;
		1273	$pl->{last_save} = $cf::RUNTIME;
		1274
		1275	$pl->save_pl ($path);
		1276	Coro::cede;
		1277	}
		1278
		1279	sub new($) {
		1280	my ($login) = @_;
		1281
		1282	my $self = create;
		1283
		1284	$self->ob->name ($login);
		1285	$self->{deny_save} = 1;
		1286
		1287	$cf::PLAYER{$login} = $self;
		1288
		1289	$self
		1290	}
		1291
		1292	=item $pl->quit_character
		1293
		1294	Nukes the player without looking back. If logged in, the connection will
		1295	be destroyed. May block for a long time.
		1296
		1297	=cut
		1298
		1299	sub quit_character {
		1300	my ($pl) = @_;
		1301
		1302	my $name = $pl->ob->name;
		1303
		1304	$pl->{deny_save} = 1;
		1305	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1306
		1307	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1308	$pl->deactivate;
		1309	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1310	$pl->ns->destroy if $pl->ns;
		1311
		1312	my $path = playerdir $pl;
		1313	my $temp = "$path~$cf::RUNTIME~deleting~";
		1314	aio_rename $path, $temp;
		1315	delete $cf::PLAYER{$pl->ob->name};
		1316	$pl->destroy;
		1317
		1318	my $prefix = qr<^~\Q$name\E/>;
		1319
		1320	# nuke player maps
		1321	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1322
		1323	IO::AIO::aio_rmtree $temp;
		1324	}
		1325
		1326	=item $pl->kick
		1327
		1328	Kicks a player out of the game. This destroys the connection.
		1329
		1330	=cut
		1331
		1332	sub kick {
		1333	my ($pl, $kicker) = @_;
		1334
		1335	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1336	$pl->killer ("kicked");
		1337	$pl->ns->destroy;
		1338	}
		1339
		1340	=item cf::player::list_logins
		1341
		1342	Returns am arrayref of all valid playernames in the system, can take a
		1343	while and may block, so not sync_job-capable, ever.
		1344
		1345	=cut
		1346
		1347	sub list_logins {
		1348	my $dirs = aio_readdir $PLAYERDIR
		1349	or return [];
		1350
		1351	my @logins;
		1352
		1353	for my $login (@$dirs) {
		1354	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1355	aio_read $fh, 0, 512, my $buf, 0 or next;
		1356	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1357
		1358	utf8::decode $login;
		1359	push @logins, $login;
		1360	}
		1361
		1362	\@logins
		1363	}
		1364
		1365	=item $player->maps
		1366
		1367	Returns an arrayref of map paths that are private for this
		1368	player. May block.
		1369
		1370	=cut
		1371
		1372	sub maps($) {
		1373	my ($pl) = @_;
		1374
		1375	$pl = ref $pl ? $pl->ob->name : $pl;
		1376
		1377	my $files = aio_readdir playerdir $pl
		1378	or return;
		1379
		1380	my @paths;
		1381
		1382	for (@$files) {
		1383	utf8::decode $_;
		1384	next if /\.(?:pl|pst)$/;
		1385	next unless /^$PATH_SEP/o;
		1386
		1387	push @paths, cf::map::normalise "~$pl/$_";
		1388	}
		1389
		1390	\@paths
		1391	}
		1392
		1393	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1394
		1395	Expand crossfire pod fragments into protocol xml.
		1396
		1397	=cut
		1398
		1399	sub expand_cfpod {
		1400	((my $self), (local $_)) = @_;
		1401
		1402	# escape & and <
		1403	s/&/&amp;/g;
		1404	s/(?<![BIUGH])</&lt;/g;
		1405
		1406	# this is buggy, it needs to properly take care of nested <'s
		1407
		1408	1 while
		1409	# replace B<>, I<>, U<> etc.
		1410	s/B<([^\>]*)>/<b>$1<\/b>/
		1411	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1412	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1413	# replace G<male|female> tags
		1414	|| s{G<([^>|]*)\|([^>]*)>}{
		1415	$self->gender ? $2 : $1
		1416	}ge
		1417	# replace H<hint text>
		1418	|| s{H<([^\>]*)>}
		1419	{
		1420	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1421	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1422	"")
		1423	[$self->{hintmode}]
		1424	}ge;
		1425
		1426	# create single paragraphs (very hackish)
		1427	s/(?<=\S)\n(?=\w)/ /g;
		1428
		1429	# compress some whitespace
		1430	s/\s+\n/\n/g; # ws line-ends
		1431	s/\n\n+/\n/g; # double lines
		1432	s/^\n+//; # beginning lines
		1433	s/\n+$//; # ending lines
		1434
		1435	$_
		1436	}
		1437
		1438	sub hintmode {
		1439	$_[0]{hintmode} = $_[1] if @_ > 1;
		1440	$_[0]{hintmode}
		1441	}
		1442
		1443	=item $player->ext_reply ($msgid, %msg)
		1444
		1445	Sends an ext reply to the player.
		1446
		1447	=cut
		1448
		1449	sub ext_reply($$%) {
		1450	my ($self, $id, %msg) = @_;
		1451
		1452	$msg{msgid} = $id;
		1453	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1454	}
		1455
		1456	=item $player->ext_event ($type, %msg)
		1457
		1458	Sends an ext event to the client.
		1459
		1460	=cut
		1461
		1462	sub ext_event($$%) {
		1463	my ($self, $type, %msg) = @_;
		1464
		1465	$self->ns->ext_event ($type, %msg);
		1466	}
		1467
		1468	=head3 cf::region
		1469
		1470	=over 4
		1471
		1472	=cut
		1473
		1474	package cf::region;
		1475
		1476	=item cf::region::find_by_path $path
		1477
		1478	Tries to decuce the likely region for a map knowing only its path.
		1479
		1480	=cut
		1481
		1482	sub find_by_path($) {
891	my ($path) = @_;	1483	my ($path) = @_;
892		1484
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1485	my ($match, $specificity);
894	my $base = $1;
895	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";
898		1486
899	warn "loading '$path' into '$pkg'\n";	1487	for my $region (list) {
900		1488	if ($region->match && $path =~ $region->match) {
901	open my $fh, "<:utf8", $path	1489	($match, $specificity) = ($region, $region->specificity)
902	or die "$path: $!";	1490	if $region->specificity > $specificity;
903		1491	}
904	my $source =
905	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })
908	. "\n};\n1";
909
910	eval $source
911	or die $@ ? "$path: $@\n"
912	: "extension disabled.\n";
913
914	push @exts, $pkg;
915	$ext_pkg{$base} = $pkg;
916
917	# no strict 'refs';
918	# @{"$pkg\::ISA"} = ext::;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	1492	}
933		1493
934	# remove commands	1494	$match
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}
959
960	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;
963	eval {
964	load_extension $ext;
965	1
966	} or warn "$ext not loaded: $@";
967	}
968	}
969
970	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007
1008	=head2 CORE EXTENSIONS
1009
1010	Functions and methods that extend core crossfire objects.
1011
1012	=head3 cf::player
1013
1014	=over 4
1015
1016	=item cf::player::exists $login
1017
1018	Returns true when the given account exists.
1019
1020	=cut
1021
1022	sub cf::player::exists($) {
1023	cf::player::find $_[0]
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1025	}
1026
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)
1028
1029	Sends an ext reply to the player.
1030
1031	=cut
1032
1033	sub cf::player::ext_reply($$$%) {
1034	my ($self, $id, %msg) = @_;
1035
1036	$msg{msgid} = $id;
1037
1038	$self->send ("ext " . to_json \%msg);
1039	}	1495	}
1040		1496
1041	=back	1497	=back
1042
1043		1498
1044	=head3 cf::map	1499	=head3 cf::map
1045		1500
1046	=over 4	1501	=over 4
1047		1502
…		…
1050	package cf::map;	1505	package cf::map;
1051		1506
1052	use Fcntl;	1507	use Fcntl;
1053	use Coro::AIO;	1508	use Coro::AIO;
1054		1509
		1510	use overload
		1511	'""' => \&as_string,
		1512	fallback => 1;
		1513
1055	our $MAX_RESET = 7200;	1514	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1515	our $DEFAULT_RESET = 3000;
1057		1516
1058	sub generate_random_map {	1517	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1518	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1519	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1520	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1521	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1522	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1523	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1524	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1525	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1526	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1527	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1528	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1529	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1530	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(cf::region::find $rmp->{region})	1531	(cf::region::find $rmp->{region}), $rmp->{custom}
		1532	)
		1533	}
		1534
		1535	=item cf::map->register ($regex, $prio)
		1536
		1537	Register a handler for the map path matching the given regex at the
		1538	givne priority (higher is better, built-in handlers have priority 0, the
		1539	default).
		1540
		1541	=cut
		1542
		1543	sub register {
		1544	my (undef, $regex, $prio) = @_;
		1545	my $pkg = caller;
		1546
		1547	no strict;
		1548	push @{"$pkg\::ISA"}, __PACKAGE__;
		1549
		1550	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1551	}
		1552
		1553	# also paths starting with '/'
		1554	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1555
		1556	sub thawer_merge {
		1557	my ($self, $merge) = @_;
		1558
		1559	# we have to keep some variables in memory intact
		1560	local $self->{path};
		1561	local $self->{load_path};
		1562
		1563	$self->SUPER::thawer_merge ($merge);
		1564	}
		1565
		1566	sub normalise {
		1567	my ($path, $base) = @_;
		1568
		1569	$path = "$path"; # make sure its a string
		1570
		1571	$path =~ s/\.map$//;
		1572
		1573	# map plan:
		1574	#
		1575	# /! non-realised random map exit (special hack!)
		1576	# {... are special paths that are not being touched
		1577	# ?xxx/... are special absolute paths
		1578	# ?random/... random maps
		1579	# /... normal maps
		1580	# ~user/... per-player map of a specific user
		1581
		1582	$path =~ s/$PATH_SEP/\//go;
		1583
		1584	# treat it as relative path if it starts with
		1585	# something that looks reasonable
		1586	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1587	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1588
		1589	$base =~ s{[^/]+/?$}{};
		1590	$path = "$base/$path";
		1591	}
		1592
		1593	for ($path) {
		1594	redo if s{//}{/};
		1595	redo if s{/\.?/}{/};
		1596	redo if s{/[^/]+/\.\./}{/};
		1597	}
		1598
		1599	$path
		1600	}
		1601
		1602	sub new_from_path {
		1603	my (undef, $path, $base) = @_;
		1604
		1605	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1606
		1607	$path = normalise $path, $base;
		1608
		1609	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1610	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1611	my $self = bless cf::map::new, $pkg;
		1612	$self->{path} = $path; $self->path ($path);
		1613	$self->init; # pass $1 etc.
		1614	return $self;
		1615	}
		1616	}
		1617
		1618	Carp::carp "unable to resolve path '$path' (base '$base').";
		1619	()
		1620	}
		1621
		1622	sub init {
		1623	my ($self) = @_;
		1624
		1625	$self
		1626	}
		1627
		1628	sub as_string {
		1629	my ($self) = @_;
		1630
		1631	"$self->{path}"
		1632	}
		1633
		1634	# the displayed name, this is a one way mapping
		1635	sub visible_name {
		1636	&as_string
		1637	}
		1638
		1639	# the original (read-only) location
		1640	sub load_path {
		1641	my ($self) = @_;
		1642
		1643	"$MAPDIR/$self->{path}.map"
		1644	}
		1645
		1646	# the temporary/swap location
		1647	sub save_path {
		1648	my ($self) = @_;
		1649
		1650	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1651	"$TMPDIR/$path.map"
		1652	}
		1653
		1654	# the unique path, undef == no special unique path
		1655	sub uniq_path {
		1656	my ($self) = @_;
		1657
		1658	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1659	"$UNIQUEDIR/$path"
1075	}	1660	}
1076		1661
1077	# and all this just because we cannot iterate over	1662	# and all this just because we cannot iterate over
1078	# all maps in C++...	1663	# all maps in C++...
1079	sub change_all_map_light {	1664	sub change_all_map_light {
1080	my ($change) = @_;	1665	my ($change) = @_;
1081		1666
1082	$_->change_map_light ($change) for values %cf::MAP;	1667	$_->change_map_light ($change)
		1668	for grep $_->outdoor, values %cf::MAP;
1083	}	1669	}
1084		1670
		1671	sub decay_objects {
		1672	my ($self) = @_;
		1673
		1674	return if $self->{deny_reset};
		1675
		1676	$self->do_decay_objects;
		1677	}
		1678
		1679	sub unlink_save {
		1680	my ($self) = @_;
		1681
		1682	utf8::encode (my $save = $self->save_path);
		1683	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1684	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1685	}
		1686
1085	sub try_load_header($) {	1687	sub load_header_from($) {
1086	my ($path) = @_;	1688	my ($self, $path) = @_;
1087		1689
1088	utf8::encode $path;	1690	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1691	#aio_open $path, O_RDONLY, 0
		1692	# or return;
		1693
		1694	$self->_load_header ($path)
1090	or return;	1695	or return;
1091		1696
1092	my $map = cf::map::new	1697	$self->{load_path} = $path;
		1698
		1699	1
		1700	}
		1701
		1702	sub load_header_orig {
		1703	my ($self) = @_;
		1704
		1705	$self->load_header_from ($self->load_path)
		1706	}
		1707
		1708	sub load_header_temp {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->save_path)
		1712	}
		1713
		1714	sub prepare_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->last_access ((delete $self->{last_access})
		1718	|| $cf::RUNTIME); #d#
		1719	# safety
		1720	$self->{instantiate_time} = $cf::RUNTIME
		1721	if $self->{instantiate_time} > $cf::RUNTIME;
		1722	}
		1723
		1724	sub prepare_orig {
		1725	my ($self) = @_;
		1726
		1727	$self->{load_original} = 1;
		1728	$self->{instantiate_time} = $cf::RUNTIME;
		1729	$self->last_access ($cf::RUNTIME);
		1730	$self->instantiate;
		1731	}
		1732
		1733	sub load_header {
		1734	my ($self) = @_;
		1735
		1736	if ($self->load_header_temp) {
		1737	$self->prepare_temp;
		1738	} else {
		1739	$self->load_header_orig
1093	or return;	1740	or return;
		1741	$self->prepare_orig;
		1742	}
1094		1743
1095	$map->load_header ($path)	1744	$self->{deny_reset} = 1
1096	or return;	1745	if $self->no_reset;
1097		1746
1098	$map->{load_path} = $path;	1747	$self->default_region (cf::region::find_by_path $self->{path})
		1748	unless $self->default_region;
1099		1749
1100	$map	1750	1
1101	}	1751	}
1102		1752
		1753	sub find;
1103	sub find_map {	1754	sub find {
1104	my ($path, $origin) = @_;	1755	my ($path, $origin) = @_;
1105		1756
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1757	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1758
		1759	cf::lock_wait "map_find:$path";
		1760
1111	$cf::MAP{$key} || do {	1761	$cf::MAP{$path} || do {
1112	# do it the slow way	1762	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1763	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1764	or return;
1127		1765
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1766	$map->{last_save} = $cf::RUNTIME;
1139		1767
1140	if ($map->should_reset) {	1768	$map->load_header
		1769	or return;
		1770
		1771	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1772	# doing this can freeze the server in a sync job, obviously
		1773	#$cf::WAIT_FOR_TICK->wait;
1141	$map->reset;	1774	$map->reset;
1142	$map = find_map $path;	1775	undef $guard;
		1776	return find $path;
1143	}	1777	}
1144		1778
1145	$cf::MAP{$key} = $map	1779	$cf::MAP{$path} = $map
1146	}	1780	}
1147	}	1781	}
		1782
		1783	sub pre_load { }
		1784	sub post_load { }
1148		1785
1149	sub load {	1786	sub load {
1150	my ($self) = @_;	1787	my ($self) = @_;
1151		1788
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1789	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1790
1156	my $path = $self->{path};	1791	my $path = $self->{path};
1157		1792
		1793	{
		1794	my $guard = cf::lock_acquire "map_load:$path";
		1795
		1796	return if $self->in_memory != cf::MAP_SWAPPED;
		1797
		1798	$self->in_memory (cf::MAP_LOADING);
		1799
1158	$self->alloc;	1800	$self->alloc;
		1801
		1802	$self->pre_load;
		1803	Coro::cede;
		1804
1159	$self->load_objects ($self->{load_path}, 1)	1805	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1806	or return;
1161		1807
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1808	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1809	if delete $self->{load_original};
1164		1810
1165	if (my $uniq = $path->uniq_path) {	1811	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1812	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1813	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1814	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1815	$self->_load_objects ($uniq, 0);
1170	}	1816	}
1171	}	1817	}
1172		1818
		1819	Coro::cede;
1173	# now do the right thing for maps	1820	# now do the right thing for maps
1174	$self->link_multipart_objects;	1821	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1822	$self->difficulty ($self->estimate_difficulty)
1185	unless $self->difficulty;	1823	unless $self->difficulty;
		1824	Coro::cede;
		1825
		1826	unless ($self->{deny_activate}) {
		1827	$self->decay_objects;
		1828	$self->fix_auto_apply;
		1829	$self->update_buttons;
		1830	Coro::cede;
		1831	$self->set_darkness_map;
		1832	Coro::cede;
1186	$self->activate;	1833	$self->activate;
1187	}	1834	}
1188		1835
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1836	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1837	}
1191		1838
1192	sub load_map_sync {	1839	$self->post_load;
		1840	}
		1841
		1842	sub customise_for {
		1843	my ($self, $ob) = @_;
		1844
		1845	return find "~" . $ob->name . "/" . $self->{path}
		1846	if $self->per_player;
		1847
		1848	# return find "?party/" . $ob->name . "/" . $self->{path}
		1849	# if $self->per_party;
		1850
		1851	$self
		1852	}
		1853
		1854	# find and load all maps in the 3x3 area around a map
		1855	sub load_diag {
		1856	my ($map) = @_;
		1857
		1858	my @diag; # diagonal neighbours
		1859
		1860	for (0 .. 3) {
		1861	my $neigh = $map->tile_path ($_)
		1862	or next;
		1863	$neigh = find $neigh, $map
		1864	or next;
		1865	$neigh->load;
		1866
		1867	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1868	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1869	}
		1870
		1871	for (@diag) {
		1872	my $neigh = find @$_
		1873	or next;
		1874	$neigh->load;
		1875	}
		1876	}
		1877
		1878	sub find_sync {
1193	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1194		1880
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1881	cf::sync_job { find $path, $origin }
		1882	}
1196		1883
1197	cf::sync_job {	1884	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1885	my ($map) = @_;
1199	or return;	1886
		1887	cf::sync_job { $map->load };
		1888	}
		1889
		1890	our %MAP_PREFETCH;
		1891	our $MAP_PREFETCHER = undef;
		1892
		1893	sub find_async {
		1894	my ($path, $origin) = @_;
		1895
		1896	$path = normalise $path, $origin && $origin->{path};
		1897
		1898	if (my $map = $cf::MAP{$path}) {
		1899	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1900	}
		1901
		1902	undef $MAP_PREFETCH{$path};
		1903	$MAP_PREFETCHER ||= cf::async {
		1904	while (%MAP_PREFETCH) {
		1905	for my $path (keys %MAP_PREFETCH) {
		1906	my $map = find $path
		1907	or next;
1200	$map->load;	1908	$map->load;
1201	$map	1909
		1910	delete $MAP_PREFETCH{$path};
		1911	}
		1912	}
		1913	undef $MAP_PREFETCHER;
1202	}	1914	};
		1915	$MAP_PREFETCHER->prio (6);
		1916
		1917	()
1203	}	1918	}
1204		1919
1205	sub save {	1920	sub save {
1206	my ($self) = @_;	1921	my ($self) = @_;
1207		1922
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1923	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1924
1211	$self->{last_save} = $cf::RUNTIME;	1925	$self->{last_save} = $cf::RUNTIME;
1212		1926
1213	return unless $self->dirty;	1927	return unless $self->dirty;
1214		1928
		1929	my $save = $self->save_path; utf8::encode $save;
		1930	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1931
1215	$self->{load_path} = $save;	1932	$self->{load_path} = $save;
1216		1933
1217	return if $self->{deny_save};	1934	return if $self->{deny_save};
1218		1935
		1936	local $self->{last_access} = $self->last_access;#d#
		1937
		1938	cf::async {
		1939	$_->contr->save for $self->players;
		1940	};
		1941
1219	if ($uniq) {	1942	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1943	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1944	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1945	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1946	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1947	}
1225	}	1948	}
1226		1949
1227	sub swap_out {	1950	sub swap_out {
1228	my ($self) = @_;	1951	my ($self) = @_;
		1952
		1953	# save first because save cedes
		1954	$self->save;
		1955
		1956	my $lock = cf::lock_acquire "map_data:" . $self->path;
1229		1957
1230	return if $self->players;	1958	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1959	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1960	return if $self->{deny_save};
1233		1961
1234	$self->save;
1235	$self->clear;	1962	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1963	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1964	}
1238		1965
1239	sub reset_at {	1966	sub reset_at {
1240	my ($self) = @_;	1967	my ($self) = @_;
1241		1968
1242	# TODO: safety, remove and allow resettable per-player maps	1969	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};
1244	return 1e100 if $self->{deny_reset};	1970	return 1e99 if $self->{deny_reset};
1245		1971
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1972	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1973	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1974
1250	$time + $to	1975	$time + $to
1251	}	1976	}
1252		1977
1253	sub should_reset {	1978	sub should_reset {
1254	my ($self) = @_;	1979	my ($self) = @_;
1255		1980
1256	$self->reset_at <= $cf::RUNTIME	1981	$self->reset_at <= $cf::RUNTIME
1257	}	1982	}
1258		1983
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1984	sub reset {
1268	my ($self) = @_;	1985	my ($self) = @_;
1269		1986
		1987	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1988
1270	return if $self->players;	1989	return if $self->players;
1271	return if $self->{path}{user_rel};#d#
1272		1990
1273	warn "resetting map ", $self->path;#d#	1991	warn "resetting map ", $self->path;
		1992
		1993	$self->in_memory (cf::MAP_SWAPPED);
		1994
		1995	# need to save uniques path
		1996	unless ($self->{deny_save}) {
		1997	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1998
		1999	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2000	if $uniq;
		2001	}
1274		2002
1275	delete $cf::MAP{$self->path};	2003	delete $cf::MAP{$self->path};
		2004
		2005	$self->clear;
1276		2006
1277	$_->clear_links_to ($self) for values %cf::MAP;	2007	$_->clear_links_to ($self) for values %cf::MAP;
1278		2008
1279	$self->unlink_save;	2009	$self->unlink_save;
1280	$self->destroy;	2010	$self->destroy;
1281	}	2011	}
1282		2012
1283	sub customise_for {	2013	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		2014
1286	if ($map->per_player) {	2015	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2016	my ($self) = @_;
		2017
		2018	delete $cf::MAP{$self->path};
		2019
		2020	$self->unlink_save;
		2021
		2022	bless $self, "cf::map";
		2023	delete $self->{deny_reset};
		2024	$self->{deny_save} = 1;
		2025	$self->reset_timeout (1);
		2026	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2027
		2028	$cf::MAP{$self->path} = $self;
		2029
		2030	$self->reset; # polite request, might not happen
		2031	}
		2032
		2033	=item $maps = cf::map::tmp_maps
		2034
		2035	Returns an arrayref with all map paths of currently instantiated and saved
		2036	maps. May block.
		2037
		2038	=cut
		2039
		2040	sub tmp_maps() {
1288	}	2041	[
1289		2042	map {
1290	$map	2043	utf8::decode $_;
		2044	/\.map$/
		2045	? normalise $_
		2046	: ()
		2047	} @{ aio_readdir $TMPDIR or [] }
		2048	]
1291	}	2049	}
1292		2050
1293	sub emergency_save {	2051	=item $maps = cf::map::random_maps
1294	local $cf::FREEZE = 1;
1295		2052
1296	warn "enter emergency map save\n";	2053	Returns an arrayref with all map paths of currently instantiated and saved
		2054	random maps. May block.
1297		2055
1298	cf::sync_job {	2056	=cut
1299	warn "begin emergency map save\n";
1300	$_->save for values %cf::MAP;
1301	};
1302		2057
1303	warn "end emergency map save\n";	2058	sub random_maps() {
		2059	[
		2060	map {
		2061	utf8::decode $_;
		2062	/\.map$/
		2063	? normalise "?random/$_"
		2064	: ()
		2065	} @{ aio_readdir $RANDOMDIR or [] }
		2066	]
		2067	}
		2068
		2069	=item cf::map::unique_maps
		2070
		2071	Returns an arrayref of paths of all shared maps that have
		2072	instantiated unique items. May block.
		2073
		2074	=cut
		2075
		2076	sub unique_maps() {
		2077	[
		2078	map {
		2079	utf8::decode $_;
		2080	/\.map$/
		2081	? normalise $_
		2082	: ()
		2083	} @{ aio_readdir $UNIQUEDIR or [] }
		2084	]
1304	}	2085	}
1305		2086
1306	package cf;	2087	package cf;
1307		2088
1308	=back	2089	=back
1309		2090
		2091	=head3 cf::object
		2092
		2093	=cut
		2094
		2095	package cf::object;
		2096
		2097	=over 4
		2098
		2099	=item $ob->inv_recursive
		2100
		2101	Returns the inventory of the object _and_ their inventories, recursively.
		2102
		2103	=cut
		2104
		2105	sub inv_recursive_;
		2106	sub inv_recursive_ {
		2107	map { $_, inv_recursive_ $_->inv } @_
		2108	}
		2109
		2110	sub inv_recursive {
		2111	inv_recursive_ inv $_[0]
		2112	}
		2113
		2114	package cf;
		2115
		2116	=back
1310		2117
1311	=head3 cf::object::player	2118	=head3 cf::object::player
1312		2119
1313	=over 4	2120	=over 4
1314		2121
…		…
1328		2135
1329	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2136	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1330		2137
1331	if ($self->{record_replies}) {	2138	if ($self->{record_replies}) {
1332	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2139	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2140
1333	} else {	2141	} else {
		2142	my $pl = $self->contr;
		2143
		2144	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2145	my $diag = $pl->{npc_dialog};
		2146	$diag->{pl}->ext_reply (
		2147	$diag->{id},
		2148	msgtype => "reply",
		2149	msg => $diag->{pl}->expand_cfpod ($msg),
		2150	add_topics => []
		2151	);
		2152
		2153	} else {
1334	$msg = $npc->name . " says: $msg" if $npc;	2154	$msg = $npc->name . " says: $msg" if $npc;
1335	$self->message ($msg, $flags);	2155	$self->message ($msg, $flags);
		2156	}
1336	}	2157	}
1337	}	2158	}
1338		2159
1339	=item $player_object->may ("access")	2160	=item $player_object->may ("access")
1340		2161
…		…
1350	(ref $cf::CFG{"may_$access"}	2171	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2172	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	2173	: $cf::CFG{"may_$access"})
1353	}	2174	}
1354		2175
		2176	=item $player_object->enter_link
		2177
		2178	Freezes the player and moves him/her to a special map (C<{link}>).
		2179
		2180	The player should be reasonably safe there for short amounts of time. You
		2181	I<MUST> call C<leave_link> as soon as possible, though.
		2182
		2183	Will never block.
		2184
		2185	=item $player_object->leave_link ($map, $x, $y)
		2186
		2187	Moves the player out of the special C<{link}> map onto the specified
		2188	map. If the map is not valid (or omitted), the player will be moved back
		2189	to the location he/she was before the call to C<enter_link>, or, if that
		2190	fails, to the emergency map position.
		2191
		2192	Might block.
		2193
		2194	=cut
		2195
		2196	sub link_map {
		2197	unless ($LINK_MAP) {
		2198	$LINK_MAP = cf::map::find "{link}"
		2199	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2200	$LINK_MAP->load;
		2201	}
		2202
		2203	$LINK_MAP
		2204	}
		2205
1355	sub cf::object::player::enter_link {	2206	sub cf::object::player::enter_link {
1356	my ($self) = @_;	2207	my ($self) = @_;
1357		2208
1358	return if $self->map == $LINK_MAP;
1359
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;
1362
1363	$self->enter_map ($LINK_MAP, 20, 20);
1364	$self->deactivate_recursive;	2209	$self->deactivate_recursive;
		2210
		2211	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2212
		2213	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2214	if $self->map && $self->map->{path} ne "{link}";
		2215
		2216	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1365	}	2217	}
1366		2218
1367	sub cf::object::player::leave_link {	2219	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	2220	my ($self, $map, $x, $y) = @_;
1369		2221
		2222	return unless $self->contr->active;
		2223
1370	my $link_pos = delete $self->{_link_pos};	2224	my $link_pos = delete $self->{_link_pos};
1371		2225
1372	unless ($map) {	2226	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	2227	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	2228	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	2229	$map = cf::map::find $map;
1378		2230
1379	unless ($map) {	2231	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	2232	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	2233	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	2234	or die "FATAL: cannot load emergency map\n";
1383	}	2235	}
1384	}	2236	}
1385		2237
1386	($x, $y) = (-1, -1)	2238	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	2241	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	2242	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	2243	if $x <=0 && $y <= 0;
1392		2244
1393	$map->load;	2245	$map->load;
		2246	$map->load_diag;
1394		2247
		2248	return unless $self->contr->active;
1395	$self->activate_recursive;	2249	$self->activate_recursive;
		2250
		2251	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	2252	$self->enter_map ($map, $x, $y);
1397	}	2253	}
1398		2254
1399	=item $player_object->goto_map ($map, $x, $y)	2255	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1400		2256
1401	=cut	2257	Moves the player to the given map-path and coordinates by first freezing
		2258	her, loading and preparing them map, calling the provided $check callback
		2259	that has to return the map if sucecssful, and then unfreezes the player on
		2260	the new (success) or old (failed) map position.
1402		2261
		2262	=cut
		2263
		2264	our $GOTOGEN;
		2265
1403	sub cf::object::player::goto_map {	2266	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	2267	my ($self, $path, $x, $y, $check) = @_;
		2268
		2269	# do generation counting so two concurrent goto's will be executed in-order
		2270	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1405		2271
1406	$self->enter_link;	2272	$self->enter_link;
1407		2273
1408	(Coro::async {	2274	(async {
1409	$path = new cf::path $path;	2275	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	2276	my $map = cf::map::find $path;
		2277
		2278	if ($map) {
1412	$map = $map->customise_for ($self) if $map;	2279	$map = $map->customise_for ($self);
		2280	$map = $check->($map) if $check && $map;
		2281	} else {
		2282	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2283	}
1413		2284
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	2285	$map
		2286	};
1416		2287
		2288	if ($@) {
		2289	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	LOG llevError | logBacktrace, Carp::longmess $@;
		2291	}
		2292
		2293	if ($gen == $self->{_goto_generation}) {
		2294	delete $self->{_goto_generation};
1417	$self->leave_link ($map, $x, $y);	2295	$self->leave_link ($map, $x, $y);
		2296	}
1418	})->prio (1);	2297	})->prio (1);
1419	}	2298	}
1420		2299
1421	=item $player_object->enter_exit ($exit_object)	2300	=item $player_object->enter_exit ($exit_object)
1422		2301
…		…
1424		2303
1425	sub parse_random_map_params {	2304	sub parse_random_map_params {
1426	my ($spec) = @_;	2305	my ($spec) = @_;
1427		2306
1428	my $rmp = { # defaults	2307	my $rmp = { # defaults
1429	xsize => 10,	2308	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2309	ysize => (cf::rndm 15, 40),
		2310	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2311	#layout => string,
1431	};	2312	};
1432		2313
1433	for (split /\n/, $spec) {	2314	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2315	my ($k, $v) = split /\s+/, $_, 2;
1435		2316
…		…
1439	$rmp	2320	$rmp
1440	}	2321	}
1441		2322
1442	sub prepare_random_map {	2323	sub prepare_random_map {
1443	my ($exit) = @_;	2324	my ($exit) = @_;
		2325
		2326	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		2327
1445	# all this does is basically replace the /! path by	2328	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	2329	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	2330	# that depends on the exit object
1448		2331
1449	my $rmp = parse_random_map_params $exit->msg;	2332	my $rmp = parse_random_map_params $exit->msg;
1450		2333
1451	if ($exit->map) {	2334	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2335	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2336	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2337	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2338	$rmp->{origin_y} = $exit->y;
1456	}	2339	}
1457		2340
1458	$rmp->{random_seed} ||= $exit->random_seed;	2341	$rmp->{random_seed} ||= $exit->random_seed;
1459		2342
1460	my $data = cf::to_json $rmp;	2343	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	2344	my $md5 = Digest::MD5::md5_hex $data;
		2345	my $meta = "$RANDOMDIR/$md5.meta";
1462		2346
1463	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2347	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1464	aio_write $fh, 0, (length $data), $data, 0;	2348	aio_write $fh, 0, (length $data), $data, 0;
		2349	undef $fh;
		2350	aio_rename "$meta~", $meta;
1465		2351
1466	$exit->slaying ("?random/$md5");	2352	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2353	$exit->msg (undef);
1468	}	2354	}
1469	}	2355	}
…		…
1471	sub cf::object::player::enter_exit {	2357	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2358	my ($self, $exit) = @_;
1473		2359
1474	return unless $self->type == cf::PLAYER;	2360	return unless $self->type == cf::PLAYER;
1475		2361
		2362	if ($exit->slaying eq "/!") {
		2363	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2364	# the problem is that $exit might not survive long enough
		2365	# so it needs to be done right now, right here
		2366	cf::sync_job { prepare_random_map $exit };
		2367	}
		2368
		2369	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2370	my $hp = $exit->stats->hp;
		2371	my $sp = $exit->stats->sp;
		2372
1476	$self->enter_link;	2373	$self->enter_link;
1477		2374
		2375	# if exit is damned, update players death & WoR home-position
		2376	$self->contr->savebed ($slaying, $hp, $sp)
		2377	if $exit->flag (FLAG_DAMNED);
		2378
1478	(Coro::async {	2379	(async {
		2380	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	2381	unless (eval {
1480		2382	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		2383
1487	1;	2384	1;
1488	}) {	2385	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2386	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "I'll try to bring you back to the map you were before. "	2387	. "I'll try to bring you back to the map you were before. "
1491	. "Please report this to the dungeon master",	2388	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2389	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2390
1494	warn "ERROR in enter_exit: $@";	2391	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	2392	$self->leave_link;
1496	}	2393	}
1497	})->prio (1);	2394	})->prio (1);
…		…
1510		2407
1511	sub cf::client::send_drawinfo {	2408	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2409	my ($self, $text, $flags) = @_;
1513		2410
1514	utf8::encode $text;	2411	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2412	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2413	}
1517		2414
		2415	=item $client->send_msg ($color, $type, $msg, [extra...])
		2416
		2417	Send a drawinfo or msg packet to the client, formatting the msg for the
		2418	client if neccessary. C<$type> should be a string identifying the type of
		2419	the message, with C<log> being the default. If C<$color> is negative, suppress
		2420	the message unless the client supports the msg packet.
		2421
		2422	=cut
		2423
		2424	sub cf::client::send_msg {
		2425	my ($self, $color, $type, $msg, @extra) = @_;
		2426
		2427	$msg = $self->pl->expand_cfpod ($msg);
		2428
		2429	return unless @extra || length $msg;
		2430
		2431	if ($self->can_msg) {
		2432	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2433	} else {
		2434	# replace some tags by gcfclient-compatible ones
		2435	for ($msg) {
		2436	1 while
		2437	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2438	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2439	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2440	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2441	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2442	}
		2443
		2444	if ($color >= 0) {
		2445	if (0 && $msg =~ /\[/) {
		2446	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2447	} else {
		2448	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2449	$self->send_packet ("drawinfo $color $msg")
		2450	}
		2451	}
		2452	}
		2453	}
		2454
		2455	=item $client->ext_event ($type, %msg)
		2456
		2457	Sends an ext event to the client.
		2458
		2459	=cut
		2460
		2461	sub cf::client::ext_event($$%) {
		2462	my ($self, $type, %msg) = @_;
		2463
		2464	$msg{msgtype} = "event_$type";
		2465	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2466	}
1518		2467
1519	=item $success = $client->query ($flags, "text", \&cb)	2468	=item $success = $client->query ($flags, "text", \&cb)
1520		2469
1521	Queues a query to the client, calling the given callback with	2470	Queues a query to the client, calling the given callback with
1522	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2471	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1523	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2472	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1524		2473
1525	Queries can fail, so check the return code. Or don't, as queries will become	2474	Queries can fail, so check the return code. Or don't, as queries will
1526	reliable at some point in the future.	2475	become reliable at some point in the future.
1527		2476
1528	=cut	2477	=cut
1529		2478
1530	sub cf::client::query {	2479	sub cf::client::query {
1531	my ($self, $flags, $text, $cb) = @_;	2480	my ($self, $flags, $text, $cb) = @_;
…		…
1539	utf8::encode $text;	2488	utf8::encode $text;
1540	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2489	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1541		2490
1542	$self->send_packet ($self->{query_queue}[0][0])	2491	$self->send_packet ($self->{query_queue}[0][0])
1543	if @{ $self->{query_queue} } == 1;	2492	if @{ $self->{query_queue} } == 1;
		2493
		2494	1
1544	}	2495	}
1545		2496
1546	cf::client->attach (	2497	cf::client->attach (
		2498	on_connect => sub {
		2499	my ($ns) = @_;
		2500
		2501	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2502	},
1547	on_reply => sub {	2503	on_reply => sub {
1548	my ($ns, $msg) = @_;	2504	my ($ns, $msg) = @_;
1549		2505
1550	# this weird shuffling is so that direct followup queries	2506	# this weird shuffling is so that direct followup queries
1551	# get handled first	2507	# get handled first
1552	my $queue = delete $ns->{query_queue};	2508	my $queue = delete $ns->{query_queue}
		2509	or return; # be conservative, not sure how that can happen, but we saw a crash here
1553		2510
1554	(shift @$queue)->[1]->($msg);	2511	(shift @$queue)->[1]->($msg);
		2512	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2513
1556	push @{ $ns->{query_queue} }, @$queue;	2514	push @{ $ns->{query_queue} }, @$queue;
1557		2515
1558	if (@{ $ns->{query_queue} } == @$queue) {	2516	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2517	if (@$queue) {
…		…
1561	} else {	2519	} else {
1562	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2520	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1563	}	2521	}
1564	}	2522	}
1565	},	2523	},
		2524	on_exticmd => sub {
		2525	my ($ns, $buf) = @_;
		2526
		2527	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2528
		2529	if (ref $msg) {
		2530	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2531	if (my %reply = $cb->($ns, $msg)) {
		2532	$reply{msgid} = $msg->{msgid};
		2533	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2534	}
		2535	}
		2536	} else {
		2537	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2538	}
		2539
		2540	cf::override;
		2541	},
1566	);	2542	);
1567		2543
1568	=item $client->coro (\&cb)	2544	=item $client->async (\&cb)
1569		2545
1570	Create a new coroutine, running the specified callback. The coroutine will	2546	Create a new coroutine, running the specified callback. The coroutine will
1571	be automatically cancelled when the client gets destroyed (e.g. on logout,	2547	be automatically cancelled when the client gets destroyed (e.g. on logout,
1572	or loss of connection).	2548	or loss of connection).
1573		2549
1574	=cut	2550	=cut
1575		2551
1576	sub cf::client::coro {	2552	sub cf::client::async {
1577	my ($self, $cb) = @_;	2553	my ($self, $cb) = @_;
1578		2554
1579	my $coro; $coro = async {	2555	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2556
1586	$coro->on_destroy (sub {	2557	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2558	delete $self->{_coro}{$coro+0};
1588	});	2559	});
1589		2560
…		…
1622		2593
1623	# here we export the classes and methods available to script code	2594	# here we export the classes and methods available to script code
1624		2595
1625	=pod	2596	=pod
1626		2597
1627	The following fucntions and emthods are available within a safe environment:	2598	The following functions and methods are available within a safe environment:
1628		2599
1629	cf::object contr pay_amount pay_player map	2600	cf::object
		2601	contr pay_amount pay_player map x y force_find force_add
		2602	insert remove
		2603
1630	cf::object::player player	2604	cf::object::player
1631	cf::player peaceful	2605	player
1632	cf::map trigger	2606
		2607	cf::player
		2608	peaceful
		2609
		2610	cf::map
		2611	trigger
1633		2612
1634	=cut	2613	=cut
1635		2614
1636	for (	2615	for (
1637	["cf::object" => qw(contr pay_amount pay_player map)],	2616	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2617	insert remove)],
1638	["cf::object::player" => qw(player)],	2618	["cf::object::player" => qw(player)],
1639	["cf::player" => qw(peaceful)],	2619	["cf::player" => qw(peaceful)],
1640	["cf::map" => qw(trigger)],	2620	["cf::map" => qw(trigger)],
1641	) {	2621	) {
1642	no strict 'refs';	2622	no strict 'refs';
…		…
1713	=back	2693	=back
1714		2694
1715	=cut	2695	=cut
1716		2696
1717	#############################################################################	2697	#############################################################################
		2698	# the server's init and main functions
1718		2699
1719	=head2 EXTENSION DATABASE SUPPORT	2700	sub load_facedata($) {
		2701	my ($path) = @_;
1720		2702
1721	Crossfire maintains a very simple database for extension use. It can	2703	warn "loading facedata from $path\n";
1722	currently store anything that can be serialised using Storable, which
1723	excludes objects.
1724		2704
1725	The parameter C<$family> should best start with the name of the extension	2705	my $facedata;
1726	using it, it should be unique.	2706	0 < aio_load $path, $facedata
		2707	or die "$path: $!";
1727		2708
1728	=over 4	2709	$facedata = Coro::Storable::thaw $facedata;
1729		2710
1730	=item $hashref = cf::db_get $family	2711	$facedata->{version} == 2
		2712	or cf::cleanup "$path: version mismatch, cannot proceed.";
1731		2713
1732	Return a hashref for use by the extension C<$family>, which can be
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735
1736	=item $value = cf::db_get $family => $key
1737
1738	Returns a single value from the database
1739
1740	=item cf::db_put $family => $hashref
1741
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744
1745	=item cf::db_put $family => $key => $value
1746
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757
1758	=cut
1759
1760	our $DB;
1761
1762	{
1763	my $path = cf::localdir . "/database.pst";
1764
1765	sub db_load() {
1766	warn "loading database $path\n";#d# remove later
1767	$DB = stat $path ? Storable::retrieve $path : { };
1768	}	2714	{
		2715	my $faces = $facedata->{faceinfo};
1769		2716
1770	my $pid;	2717	while (my ($face, $info) = each %$faces) {
1771		2718	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1772	sub db_save() {	2719	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1773	warn "saving database $path\n";#d# remove later	2720	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1774	waitpid $pid, 0 if $pid;	2721	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1775	if (0 == ($pid = fork)) {	2722	Coro::cede;
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});
1793
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}
1798
1799	sub db_get($;$) {
1800	@_ >= 2
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804
1805	sub db_put($$;$) {
1806	if (@_ >= 3) {
1807	$DB->{$_[0]}{$_[1]} = $_[2];
1808	} else {
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813
1814	cf::global->attach (
1815	prio => 10000,
1816	on_cleanup => sub {
1817	db_sync;
1818	},	2723	}
1819	);
1820	}
1821		2724
1822	#############################################################################	2725	while (my ($face, $info) = each %$faces) {
1823	# the server's main()	2726	next unless $info->{smooth};
		2727	my $idx = cf::face::find $face
		2728	or next;
		2729	if (my $smooth = cf::face::find $info->{smooth}) {
		2730	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2731	} else {
		2732	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2733	}
		2734	Coro::cede;
		2735	}
		2736	}
		2737
		2738	{
		2739	my $anims = $facedata->{animinfo};
		2740
		2741	while (my ($anim, $info) = each %$anims) {
		2742	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2743	Coro::cede;
		2744	}
		2745
		2746	cf::anim::invalidate_all; # d'oh
		2747	}
		2748
		2749	1
		2750	}
		2751
		2752	sub reload_regions {
		2753	load_resource_file "$MAPDIR/regions"
		2754	or die "unable to load regions file\n";
		2755	}
		2756
		2757	sub reload_facedata {
		2758	load_facedata "$DATADIR/facedata"
		2759	or die "unable to load facedata\n";
		2760	}
		2761
		2762	sub reload_archetypes {
		2763	load_resource_file "$DATADIR/archetypes"
		2764	or die "unable to load archetypes\n";
		2765	#d# NEED to laod twice to resolve forward references
		2766	# this really needs to be done in an extra post-pass
		2767	# (which needs to be synchronous, so solve it differently)
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	}
		2771
		2772	sub reload_treasures {
		2773	load_resource_file "$DATADIR/treasures"
		2774	or die "unable to load treasurelists\n";
		2775	}
		2776
		2777	sub reload_resources {
		2778	warn "reloading resource files...\n";
		2779
		2780	reload_regions;
		2781	reload_facedata;
		2782	#reload_archetypes;#d#
		2783	reload_archetypes;
		2784	reload_treasures;
		2785
		2786	warn "finished reloading resource files\n";
		2787	}
		2788
		2789	sub init {
		2790	reload_resources;
		2791	}
1824		2792
1825	sub cfg_load {	2793	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2794	open my $fh, "<:utf8", "$CONFDIR/config"
1827	or return;	2795	or return;
1828		2796
1829	local $/;	2797	local $/;
1830	*CFG = YAML::Syck::Load <$fh>;	2798	*CFG = YAML::Syck::Load <$fh>;
		2799
		2800	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2801
		2802	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2803	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2804
		2805	if (exists $CFG{mlockall}) {
		2806	eval {
		2807	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2808	and die "WARNING: m(un)lockall failed: $!\n";
		2809	};
		2810	warn $@ if $@;
		2811	}
1831	}	2812	}
1832		2813
1833	sub main {	2814	sub main {
1834	# we must not ever block the main coroutine	2815	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2816	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2817	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2818	(async {
1838	Event::one_event;	2819	Event::one_event;
1839	})->();	2820	})->prio (Coro::PRIO_MAX);
1840	};	2821	};
1841		2822
1842	cfg_load;	2823	cfg_load;
1843	db_load;	2824	db_init;
1844	load_extensions;	2825	load_extensions;
		2826
		2827	$TICK_WATCHER->start;
1845	Event::loop;	2828	Event::loop;
1846	}	2829	}
1847		2830
1848	#############################################################################	2831	#############################################################################
1849	# initialisation	2832	# initialisation and cleanup
1850		2833
		2834	# install some emergency cleanup handlers
		2835	BEGIN {
		2836	for my $signal (qw(INT HUP TERM)) {
		2837	Event->signal (
		2838	reentrant => 0,
		2839	data => WF_AUTOCANCEL,
		2840	signal => $signal,
		2841	prio => 0,
		2842	cb => sub {
		2843	cf::cleanup "SIG$signal";
		2844	},
		2845	);
		2846	}
		2847	}
		2848
		2849	sub write_runtime {
		2850	my $runtime = "$LOCALDIR/runtime";
		2851
		2852	# first touch the runtime file to show we are still running:
		2853	# the fsync below can take a very very long time.
		2854
		2855	IO::AIO::aio_utime $runtime, undef, undef;
		2856
		2857	my $guard = cf::lock_acquire "write_runtime";
		2858
		2859	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2860	or return;
		2861
		2862	my $value = $cf::RUNTIME + 90 + 10;
		2863	# 10 is the runtime save interval, for a monotonic clock
		2864	# 60 allows for the watchdog to kill the server.
		2865
		2866	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2867	and return;
		2868
		2869	# always fsync - this file is important
		2870	aio_fsync $fh
		2871	and return;
		2872
		2873	# touch it again to show we are up-to-date
		2874	aio_utime $fh, undef, undef;
		2875
		2876	close $fh
		2877	or return;
		2878
		2879	aio_rename "$runtime~", $runtime
		2880	and return;
		2881
		2882	warn "runtime file written.\n";
		2883
		2884	1
		2885	}
		2886
		2887	sub emergency_save() {
		2888	my $freeze_guard = cf::freeze_mainloop;
		2889
		2890	warn "enter emergency perl save\n";
		2891
		2892	cf::sync_job {
		2893	# use a peculiar iteration method to avoid tripping on perl
		2894	# refcount bugs in for. also avoids problems with players
		2895	# and maps saved/destroyed asynchronously.
		2896	warn "begin emergency player save\n";
		2897	for my $login (keys %cf::PLAYER) {
		2898	my $pl = $cf::PLAYER{$login} or next;
		2899	$pl->valid or next;
		2900	$pl->save;
		2901	}
		2902	warn "end emergency player save\n";
		2903
		2904	warn "begin emergency map save\n";
		2905	for my $path (keys %cf::MAP) {
		2906	my $map = $cf::MAP{$path} or next;
		2907	$map->valid or next;
		2908	$map->save;
		2909	}
		2910	warn "end emergency map save\n";
		2911
		2912	warn "begin emergency database checkpoint\n";
		2913	BDB::db_env_txn_checkpoint $DB_ENV;
		2914	warn "end emergency database checkpoint\n";
		2915	};
		2916
		2917	warn "leave emergency perl save\n";
		2918	}
		2919
		2920	sub post_cleanup {
		2921	my ($make_core) = @_;
		2922
		2923	warn Carp::longmess "post_cleanup backtrace"
		2924	if $make_core;
		2925	}
		2926
1851	sub reload() {	2927	sub do_reload_perl() {
1852	# can/must only be called in main	2928	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2929	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2930	warn "can only reload from main coroutine";
1855	return;	2931	return;
1856	}	2932	}
1857		2933
1858	warn "reloading...";	2934	warn "reloading...";
1859		2935
1860	local $FREEZE = 1;	2936	warn "entering sync_job";
		2937
		2938	cf::sync_job {
		2939	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2940	cf::emergency_save;
		2941	cf::write_runtime; # external watchdog should not bark
1862		2942
1863	eval {	2943	warn "syncing database to disk";
		2944	BDB::db_env_txn_checkpoint $DB_ENV;
		2945
1864	# if anything goes wrong in here, we should simply crash as we already saved	2946	# if anything goes wrong in here, we should simply crash as we already saved
1865		2947
1866	# cancel all watchers	2948	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2949	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2950	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2951	}
1870		2952
		2953	warn "flushing outstanding aio requests";
		2954	for (;;) {
		2955	BDB::flush;
		2956	IO::AIO::flush;
		2957	Coro::cede;
		2958	last unless IO::AIO::nreqs || BDB::nreqs;
		2959	warn "iterate...";
		2960	}
		2961
		2962	++$RELOAD;
		2963
1871	# cancel all extension coros	2964	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2965	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2966	%EXT_CORO = ();
1874		2967
1875	# unload all extensions	2968	warn "removing commands";
1876	for (@exts) {	2969	%COMMAND = ();
		2970
		2971	warn "removing ext/exti commands";
		2972	%EXTCMD = ();
		2973	%EXTICMD = ();
		2974
		2975	warn "unloading/nuking all extensions";
		2976	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2977	warn "... unloading $pkg";
1878	unload_extension $_;	2978
		2979	if (my $cb = $pkg->can ("unload")) {
		2980	eval {
		2981	$cb->($pkg);
		2982	1
		2983	} or warn "$pkg unloaded, but with errors: $@";
1879	}	2984	}
1880		2985
		2986	warn "... nuking $pkg";
		2987	Symbol::delete_package $pkg;
		2988	}
		2989
1881	# unload all modules loaded from $LIBDIR	2990	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2991	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2992	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2993
1885	warn "removing <$k>";	2994	warn "... unloading $k";
1886	delete $INC{$k};	2995	delete $INC{$k};
1887		2996
1888	$k =~ s/\.pm$//;	2997	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2998	$k =~ s/\//::/g;
1890		2999
…		…
1893	}	3002	}
1894		3003
1895	Symbol::delete_package $k;	3004	Symbol::delete_package $k;
1896	}	3005	}
1897		3006
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	3007	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	3008	Symbol::delete_package "safe::$_"
1904	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3009	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1905		3010
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	3011	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	3012	delete $INC{"cf.pm"};
		3013	delete $INC{"cf/pod.pm"};
1911		3014
1912	# don't, removes xs symbols, too,	3015	# don't, removes xs symbols, too,
1913	# and global variables created in xs	3016	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	3017	#Symbol::delete_package __PACKAGE__;
1915		3018
1916	# reload cf.pm	3019	warn "unload completed, starting to reload now";
		3020
1917	warn "reloading cf.pm";	3021	warn "reloading cf.pm";
1918	require cf;	3022	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3023	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		3024
1921	# load config and database again	3025	warn "loading config and database again";
1922	cf::cfg_load;	3026	cf::cfg_load;
1923	cf::db_load;
1924		3027
1925	# load extensions
1926	warn "load extensions";	3028	warn "loading extensions";
1927	cf::load_extensions;	3029	cf::load_extensions;
1928		3030
1929	# reattach attachments to objects	3031	warn "reattaching attachments to objects/players";
1930	warn "reattach";	3032	_global_reattach; # objects, sockets
1931	_global_reattach;	3033	warn "reattaching attachments to maps";
1932	};	3034	reattach $_ for values %MAP;
		3035	warn "reattaching attachments to players";
		3036	reattach $_ for values %PLAYER;
1933		3037
1934	if ($@) {	3038	warn "leaving sync_job";
		3039
		3040	1
		3041	} or do {
1935	warn $@;	3042	warn $@;
1936	warn "error while reloading, exiting.";	3043	warn "error while reloading, exiting.";
1937	exit 1;	3044	exit 1;
1938	}	3045	};
1939		3046
1940	warn "reloaded successfully";	3047	warn "reloaded";
1941	};	3048	};
1942		3049
1943	#############################################################################	3050	our $RELOAD_WATCHER; # used only during reload
1944		3051
1945	unless ($LINK_MAP) {	3052	sub reload_perl() {
1946	$LINK_MAP = cf::map::new;	3053	# doing reload synchronously and two reloads happen back-to-back,
		3054	# coro crashes during coro_state_free->destroy here.
1947		3055
1948	$LINK_MAP->width (41);	3056	$RELOAD_WATCHER ||= Event->timer (
1949	$LINK_MAP->height (41);	3057	reentrant => 0,
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,	3058	after => 0,
		3059	data => WF_AUTOCANCEL,
1958	cb => sub {	3060	cb => sub {
1959	$_[0]->w->cancel;	3061	do_reload_perl;
1960		3062	undef $RELOAD_WATCHER;
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});	3063	},
1979		3064	);
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	3065	}
1985
1986	register "<global>", __PACKAGE__;
1987		3066
1988	register_command "reload" => sub {	3067	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	3068	my ($who, $arg) = @_;
1990		3069
1991	if ($who->flag (FLAG_WIZ)) {	3070	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	3071	$who->message ("reloading server.");
		3072	async { reload_perl };
1995	}	3073	}
1996	};	3074	};
1997		3075
1998	unshift @INC, $LIBDIR;	3076	unshift @INC, $LIBDIR;
1999		3077
		3078	my $bug_warning = 0;
		3079
		3080	our @WAIT_FOR_TICK;
		3081	our @WAIT_FOR_TICK_BEGIN;
		3082
		3083	sub wait_for_tick {
		3084	return unless $TICK_WATCHER->is_active;
		3085	return if $Coro::current == $Coro::main;
		3086
		3087	my $signal = new Coro::Signal;
		3088	push @WAIT_FOR_TICK, $signal;
		3089	$signal->wait;
		3090	}
		3091
		3092	sub wait_for_tick_begin {
		3093	return unless $TICK_WATCHER->is_active;
		3094	return if $Coro::current == $Coro::main;
		3095
		3096	my $signal = new Coro::Signal;
		3097	push @WAIT_FOR_TICK_BEGIN, $signal;
		3098	$signal->wait;
		3099	}
		3100
		3101	my $min = 1e6;#d#
		3102	my $avg = 10;
2000	$TICK_WATCHER = Event->timer (	3103	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	3104	reentrant => 0,
		3105	parked => 1,
2002	prio => 0,	3106	prio => 0,
2003	at => $NEXT_TICK || $TICK,	3107	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	3108	data => WF_AUTOCANCEL,
2005	cb => sub {	3109	cb => sub {
2006	unless ($FREEZE) {	3110	if ($Coro::current != $Coro::main) {
		3111	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3112	unless ++$bug_warning > 10;
		3113	return;
		3114	}
		3115
		3116	$NOW = $tick_start = Event::time;
		3117
2007	cf::server_tick; # one server iteration	3118	cf::server_tick; # one server iteration
2008	$RUNTIME += $TICK;	3119
		3120	0 && sync_job {#d#
		3121	for(1..10) {
		3122	my $t = Event::time;
		3123	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3124	or die;
		3125
		3126	$map->width (50);
		3127	$map->height (50);
		3128	$map->alloc;
		3129	$map->_load_objects ("/tmp/x.map", 1);
		3130	my $t = Event::time - $t;
		3131
		3132	#next unless $t < 0.0013;#d#
		3133	if ($t < $min) {
		3134	$min = $t;
		3135	}
		3136	$avg = $avg * 0.99 + $t * 0.01;
		3137	}
		3138	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3139	exit 0;
		3140	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2009	}	3141	};
2010		3142
		3143	$RUNTIME += $TICK;
2011	$NEXT_TICK += $TICK;	3144	$NEXT_TICK += $TICK;
2012		3145
		3146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3147	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3148	Coro::async_pool {
		3149	write_runtime
		3150	or warn "ERROR: unable to write runtime file: $!";
		3151	};
		3152	}
		3153
		3154	# my $AFTER = Event::time;
		3155	# warn $AFTER - $NOW;#d#
		3156
		3157	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3158	$sig->send;
		3159	}
		3160	while (my $sig = shift @WAIT_FOR_TICK) {
		3161	$sig->send;
		3162	}
		3163
		3164	$NOW = Event::time;
		3165
2013	# if we are delayed by four ticks or more, skip them all	3166	# if we are delayed by four ticks or more, skip them all
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3167	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2015		3168
2016	$TICK_WATCHER->at ($NEXT_TICK);	3169	$TICK_WATCHER->at ($NEXT_TICK);
2017	$TICK_WATCHER->start;	3170	$TICK_WATCHER->start;
		3171
		3172	$LOAD = ($NOW - $tick_start) / $TICK;
		3173	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3174
		3175	_post_tick;
		3176
		3177
2018	},	3178	},
2019	);	3179	);
2020		3180
		3181	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	3182	BDB::max_poll_time $TICK * 0.1;
2022		3183	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	3184	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	3185	fd => BDB::poll_fileno,
2025	poll => 'r',	3186	poll => 'r',
2026	prio => 5,	3187	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	3188	data => WF_AUTOCANCEL,
2033	after => 0,	3189	cb => \&BDB::poll_cb,
2034	interval => 10,	3190	);
2035	cb => sub {	3191	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	3192
2037	write_runtime	3193	BDB::set_sync_prepare {
2038	or warn "ERROR: unable to write runtime file: $!";	3194	my $status;
		3195	my $current = $Coro::current;
		3196	(
		3197	sub {
		3198	$status = $!;
		3199	$current->ready; undef $current;
		3200	},
		3201	sub {
		3202	Coro::schedule while defined $current;
		3203	$! = $status;
		3204	},
		3205	)
		3206	};
		3207
		3208	unless ($DB_ENV) {
		3209	$DB_ENV = BDB::db_env_create;
		3210
		3211	cf::sync_job {
		3212	eval {
		3213	BDB::db_env_open
		3214	$DB_ENV,
		3215	$BDBDIR,
		3216	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3217	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3218	0666;
		3219
		3220	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3221
		3222	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3223	$DB_ENV->set_lk_detect;
		3224	};
		3225
		3226	cf::cleanup "db_env_open(db): $@" if $@;
2039	})->();	3227	};
2040	},	3228	}
2041	);	3229	}
		3230
		3231	{
		3232	IO::AIO::min_parallel 8;
		3233
		3234	undef $Coro::AIO::WATCHER;
		3235	IO::AIO::max_poll_time $TICK * 0.1;
		3236	$AIO_POLL_WATCHER = Event->io (
		3237	reentrant => 0,
		3238	data => WF_AUTOCANCEL,
		3239	fd => IO::AIO::poll_fileno,
		3240	poll => 'r',
		3241	prio => 6,
		3242	cb => \&IO::AIO::poll_cb,
		3243	);
		3244	}
		3245
		3246	my $_log_backtrace;
		3247
		3248	sub _log_backtrace {
		3249	my ($msg, @addr) = @_;
		3250
		3251	$msg =~ s/\n//;
		3252
		3253	# limit the # of concurrent backtraces
		3254	if ($_log_backtrace < 2) {
		3255	++$_log_backtrace;
		3256	async {
		3257	my @bt = fork_call {
		3258	@addr = map { sprintf "%x", $_ } @addr;
		3259	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3260	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3261	or die "addr2line: $!";
		3262
		3263	my @funcs;
		3264	my @res = <$fh>;
		3265	chomp for @res;
		3266	while (@res) {
		3267	my ($func, $line) = splice @res, 0, 2, ();
		3268	push @funcs, "[$func] $line";
		3269	}
		3270
		3271	@funcs
		3272	};
		3273
		3274	LOG llevInfo, "[ABT] $msg\n";
		3275	LOG llevInfo, "[ABT] $_\n" for @bt;
		3276	--$_log_backtrace;
		3277	};
		3278	} else {
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] [suppressed]\n";
		3281	}
		3282	}
		3283
		3284	# load additional modules
		3285	use cf::pod;
		3286
		3287	END { cf::emergency_save }
2042		3288
2043	1	3289	1
2044		3290

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