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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.288 by root, Mon Jun 25 07:40:53 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->convert_blessed->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 ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
191		336
192	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
195	fast or be very important.	340	fast or be very important.
…		…
197	=cut	342	=cut
198		343
199	sub sync_job(&) {	344	sub sync_job(&) {
200	my ($job) = @_;	345	my ($job) = @_;
201		346
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
		350	# this is the main coro, too bad, we have to block
		351	# till the operation succeeds, freezing the server :/
		352
212	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	354	# (but this is cancel-safe)
		355	my $freeze_guard = freeze_mainloop;
		356
		357	my $busy = 1;
		358	my @res;
		359
		360	(async {
		361	@res = eval { $job->() };
		362	warn $@ if $@;
		363	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
		365
215	while ($busy) {	366	while ($busy) {
216	Coro::cede_notself;	367	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	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
		376
		377	wantarray ? @res : $res[0]
219	} else {	378	} else {
220	$coro->join;	379	# we are in another coroutine, how wonderful, everything just works
		380
		381	$job->()
221	}	382	}
222
223	wantarray ? @res : $res[0]
224	}	383	}
225		384
226	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
227		386
228	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
230		389
231	=cut	390	=cut
232		391
233	sub coro(&) {	392	sub async_ext(&) {
234	my $cb = shift;	393	my $cb = shift;
235		394
236	my $coro; $coro = async {	395	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		396
243	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
245	});	399	});
246	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
247		401
248	$coro	402	$coro
249	}	403	}
250		404
251	sub write_runtime {	405	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		406
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
255	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.
256		411
257	my $value = $cf::RUNTIME;	412	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		413
261	aio_fsync $fh	414	sub fork_call(&@) {
262	and return;	415	my ($cb, @args) = @_;
263		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) {
264	close $fh	423	close $fh2;
265	or return;
266		424
267	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
268	and return;	426	$res = Coro::Storable::thaw $res;
269		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
270	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	574	}
272		575
273	=back	576	=back
274		577
275	=cut	578	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		579
387	#############################################################################	580	#############################################################################
388		581
389	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
390		583
…		…
392	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
394		587
395	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	590	Crossfire TRT).
398		591
399	=over 4	592	=over 4
400		593
401	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
402		595
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	710	our @CB_MAP = ();
518		711
519	my %attachment;	712	my %attachment;
520		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
521	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
523		722
524	use sort 'stable';	723	use sort 'stable';
525		724
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
560		759
561	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		764
566	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	766	my $pkg = shift @arg;
568		767
569	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
599	}	798	}
600		799
601	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
602	} else {	801	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	803	}
605		804
606	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
607	}	806	}
608		807
…		…
610	if (ref $_[0]) {	809	if (ref $_[0]) {
611	_object_attach @_;	810	_object_attach @_;
612	} else {	811	} else {
613	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
614	}	813	}
		814	_recalc_want;
615	};	815	};
616		816
617	# all those should be optimised	817	# all those should be optimised
618	sub cf::attachable::detach {	818	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
623	reattach ($obj);	823	reattach ($obj);
624	} else {	824	} else {
625	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
626	}	826	}
		827	_recalc_want;
627	};	828	};
628		829
629	sub cf::attachable::attached {	830	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
631		832
…		…
696	# object support	897	# object support
697		898
698	sub reattach {	899	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		904
702	my $registry = $obj->registry;	905	my $registry = $obj->registry;
703		906
704	@$registry = ();	907	@$registry = ();
705		908
…		…
752	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
753		956
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	961	close $fh;
759		962
760	if (@$objs) {	963	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	969	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
768	}	971	}
769	} else {	972	} else {
770	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
798	or return;	1001	or return;
799		1002
800	unless (aio_stat "$filename.pst") {	1003	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1004	(aio_load "$filename.pst", $av) >= 0
802	or return;	1005	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1007	}
805		1008
		1009	warn sprintf "loading %s (%d)\n",
		1010	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	1011	return ($data, $av);
807	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
808		1019
809	#############################################################################	1020	#############################################################################
810	# command handling &c	1021	# command handling &c
811		1022
812	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1037	}
827		1038
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1040
830	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
831		1046
832	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
833	called.	1048	called.
834		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
835	=cut	1061	=cut
836		1062
837	sub register_extcmd {	1063	sub register_extcmd {
838	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
839		1065
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
844	}	1073	}
845		1074
846	cf::player->attach (	1075	cf::player->attach (
847	on_command => sub {	1076	on_command => sub {
848	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
861		1090
862	my $msg = eval { from_json $buf };	1091	my $msg = eval { from_json $buf };
863		1092
864	if (ref $msg) {	1093	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	1097	}
869	}	1098	}
870	} else {	1099	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		1102
874	cf::override;	1103	cf::override;
875	},	1104	},
876	);	1105	);
877		1106
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
		1413	=item $player->ext_reply ($msgid, %msg)
		1414
		1415	Sends an ext reply to the player.
		1416
		1417	=cut
		1418
		1419	sub ext_reply($$%) {
		1420	my ($self, $id, %msg) = @_;
		1421
		1422	$msg{msgid} = $id;
		1423	$self->send ("ext " . cf::to_json \%msg);
		1424	}
		1425
		1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
885	my ($path) = @_;	1453	my ($path) = @_;
886		1454
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1455	my ($match, $specificity);
888	my $base = $1;
889	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892		1456
893	warn "loading '$path' into '$pkg'\n";	1457	for my $region (list) {
894		1458	if ($region->match && $path =~ $region->match) {
895	open my $fh, "<:utf8", $path	1459	($match, $specificity) = ($region, $region->specificity)
896	or die "$path: $!";	1460	if $region->specificity > $specificity;
897		1461	}
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	1462	}
927		1463
928	# remove commands	1464	$match
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}
953
954	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;
957	eval {
958	load_extension $ext;
959	1
960	} or warn "$ext not loaded: $@";
961	}
962	}
963
964	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001
1002	=head2 CORE EXTENSIONS
1003
1004	Functions and methods that extend core crossfire objects.
1005
1006	=head3 cf::player
1007
1008	=over 4
1009
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut
1015
1016	sub cf::player::exists($) {
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022
1023	Sends an ext reply to the player.
1024
1025	=cut
1026
1027	sub cf::player::ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;
1029
1030	$msg{msgid} = $id;
1031
1032	$self->send ("ext " . to_json \%msg);
1033	}	1465	}
1034		1466
1035	=back	1467	=back
1036
1037		1468
1038	=head3 cf::map	1469	=head3 cf::map
1039		1470
1040	=over 4	1471	=over 4
1041		1472
…		…
1044	package cf::map;	1475	package cf::map;
1045		1476
1046	use Fcntl;	1477	use Fcntl;
1047	use Coro::AIO;	1478	use Coro::AIO;
1048		1479
		1480	use overload
		1481	'""' => \&as_string,
		1482	fallback => 1;
		1483
1049	our $MAX_RESET = 7200;	1484	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1485	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1486
1054	sub generate_random_map {	1487	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1488	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1489	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1490	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1491	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1492	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1493	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1494	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1495	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1496	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1497	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1498	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1499	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1500	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1501	(cf::region::find $rmp->{region}), $rmp->{custom}
		1502	)
		1503	}
		1504
		1505	=item cf::map->register ($regex, $prio)
		1506
		1507	Register a handler for the map path matching the given regex at the
		1508	givne priority (higher is better, built-in handlers have priority 0, the
		1509	default).
		1510
		1511	=cut
		1512
		1513	sub register {
		1514	my (undef, $regex, $prio) = @_;
		1515	my $pkg = caller;
		1516
		1517	no strict;
		1518	push @{"$pkg\::ISA"}, __PACKAGE__;
		1519
		1520	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1521	}
		1522
		1523	# also paths starting with '/'
		1524	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1525
		1526	sub thawer_merge {
		1527	my ($self, $merge) = @_;
		1528
		1529	# we have to keep some variables in memory intact
		1530	local $self->{path};
		1531	local $self->{load_path};
		1532
		1533	$self->SUPER::thawer_merge ($merge);
		1534	}
		1535
		1536	sub normalise {
		1537	my ($path, $base) = @_;
		1538
		1539	$path = "$path"; # make sure its a string
		1540
		1541	$path =~ s/\.map$//;
		1542
		1543	# map plan:
		1544	#
		1545	# /! non-realised random map exit (special hack!)
		1546	# {... are special paths that are not being touched
		1547	# ?xxx/... are special absolute paths
		1548	# ?random/... random maps
		1549	# /... normal maps
		1550	# ~user/... per-player map of a specific user
		1551
		1552	$path =~ s/$PATH_SEP/\//go;
		1553
		1554	# treat it as relative path if it starts with
		1555	# something that looks reasonable
		1556	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1557	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1558
		1559	$base =~ s{[^/]+/?$}{};
		1560	$path = "$base/$path";
		1561	}
		1562
		1563	for ($path) {
		1564	redo if s{//}{/};
		1565	redo if s{/\.?/}{/};
		1566	redo if s{/[^/]+/\.\./}{/};
		1567	}
		1568
		1569	$path
		1570	}
		1571
		1572	sub new_from_path {
		1573	my (undef, $path, $base) = @_;
		1574
		1575	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1576
		1577	$path = normalise $path, $base;
		1578
		1579	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1580	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1581	my $self = bless cf::map::new, $pkg;
		1582	$self->{path} = $path; $self->path ($path);
		1583	$self->init; # pass $1 etc.
		1584	return $self;
		1585	}
		1586	}
		1587
		1588	Carp::carp "unable to resolve path '$path' (base '$base').";
		1589	()
		1590	}
		1591
		1592	sub init {
		1593	my ($self) = @_;
		1594
		1595	$self
		1596	}
		1597
		1598	sub as_string {
		1599	my ($self) = @_;
		1600
		1601	"$self->{path}"
		1602	}
		1603
		1604	# the displayed name, this is a one way mapping
		1605	sub visible_name {
		1606	&as_string
		1607	}
		1608
		1609	# the original (read-only) location
		1610	sub load_path {
		1611	my ($self) = @_;
		1612
		1613	"$MAPDIR/$self->{path}.map"
		1614	}
		1615
		1616	# the temporary/swap location
		1617	sub save_path {
		1618	my ($self) = @_;
		1619
		1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1621	"$TMPDIR/$path.map"
		1622	}
		1623
		1624	# the unique path, undef == no special unique path
		1625	sub uniq_path {
		1626	my ($self) = @_;
		1627
		1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1629	"$UNIQUEDIR/$path"
1071	}	1630	}
1072		1631
1073	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1074	# all maps in C++...	1633	# all maps in C++...
1075	sub change_all_map_light {	1634	sub change_all_map_light {
1076	my ($change) = @_;	1635	my ($change) = @_;
1077		1636
1078	$_->change_map_light ($change) for values %cf::MAP;	1637	$_->change_map_light ($change)
		1638	for grep $_->outdoor, values %cf::MAP;
1079	}	1639	}
1080		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
		1649	sub unlink_save {
		1650	my ($self) = @_;
		1651
		1652	utf8::encode (my $save = $self->save_path);
		1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1655	}
		1656
1081	sub try_load_header($) {	1657	sub load_header_from($) {
1082	my ($path) = @_;	1658	my ($self, $path) = @_;
1083		1659
1084	utf8::encode $path;	1660	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
		1662	# or return;
		1663
		1664	$self->_load_header ($path)
1086	or return;	1665	or return;
1087		1666
1088	my $map = cf::map::new	1667	$self->{load_path} = $path;
		1668
		1669	1
		1670	}
		1671
		1672	sub load_header_orig {
		1673	my ($self) = @_;
		1674
		1675	$self->load_header_from ($self->load_path)
		1676	}
		1677
		1678	sub load_header_temp {
		1679	my ($self) = @_;
		1680
		1681	$self->load_header_from ($self->save_path)
		1682	}
		1683
		1684	sub prepare_temp {
		1685	my ($self) = @_;
		1686
		1687	$self->last_access ((delete $self->{last_access})
		1688	|| $cf::RUNTIME); #d#
		1689	# safety
		1690	$self->{instantiate_time} = $cf::RUNTIME
		1691	if $self->{instantiate_time} > $cf::RUNTIME;
		1692	}
		1693
		1694	sub prepare_orig {
		1695	my ($self) = @_;
		1696
		1697	$self->{load_original} = 1;
		1698	$self->{instantiate_time} = $cf::RUNTIME;
		1699	$self->last_access ($cf::RUNTIME);
		1700	$self->instantiate;
		1701	}
		1702
		1703	sub load_header {
		1704	my ($self) = @_;
		1705
		1706	if ($self->load_header_temp) {
		1707	$self->prepare_temp;
		1708	} else {
		1709	$self->load_header_orig
1089	or return;	1710	or return;
		1711	$self->prepare_orig;
		1712	}
1090		1713
1091	$map->load_header ($path)	1714	$self->{deny_reset} = 1
1092	or return;	1715	if $self->no_reset;
1093		1716
1094	$map->{load_path} = $path;	1717	$self->default_region (cf::region::find_by_path $self->{path})
1095	use Data::Dumper; warn Dumper $map;#d#	1718	unless $self->default_region;
1096		1719
1097	$map	1720	1
1098	}	1721	}
1099		1722
		1723	sub find;
1100	sub find_map {	1724	sub find {
1101	my ($path, $origin) = @_;	1725	my ($path, $origin) = @_;
1102		1726
1103	#warn "find_map<$path,$origin>\n";#d#	1727	$path = normalise $path, $origin && $origin->path;
1104		1728
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1729	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1730
1108	$cf::MAP{$key} || do {	1731	$cf::MAP{$path} || do {
1109	# do it the slow way	1732	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1733	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1734	or return;
1124		1735
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1736	$map->{last_save} = $cf::RUNTIME;
1136		1737
1137	$map->reset if $map->should_reset;	1738	$map->load_header
		1739	or return;
1138		1740
		1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1742	# doing this can freeze the server in a sync job, obviously
		1743	#$cf::WAIT_FOR_TICK->wait;
		1744	$map->reset;
		1745	undef $guard;
		1746	return find $path;
		1747	}
		1748
1139	$cf::MAP{$key} = $map	1749	$cf::MAP{$path} = $map
1140	}	1750	}
1141	}	1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
1142		1755
1143	sub load {	1756	sub load {
1144	my ($self) = @_;	1757	my ($self) = @_;
1145		1758
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1759	local $self->{deny_reset} = 1; # loading can take a long time
1147
1148	$self->in_memory (cf::MAP_LOADING);
1149		1760
1150	my $path = $self->{path};	1761	my $path = $self->{path};
1151		1762
		1763	{
		1764	my $guard = cf::lock_acquire "map_load:$path";
		1765
		1766	return if $self->in_memory != cf::MAP_SWAPPED;
		1767
		1768	$self->in_memory (cf::MAP_LOADING);
		1769
1152	$self->alloc;	1770	$self->alloc;
		1771
		1772	$self->pre_load;
		1773	Coro::cede;
		1774
1153	$self->load_objects ($self->{load_path}, 1)	1775	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1776	or return;
1155		1777
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1779	if delete $self->{load_original};
1157		1780
1158	if (my $uniq = $path->uniq_path) {	1781	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1782	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1783	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1784	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1785	$self->_load_objects ($uniq, 0);
1163	}	1786	}
1164	}	1787	}
1165		1788
		1789	Coro::cede;
1166	# now do the right thing for maps	1790	# now do the right thing for maps
1167	$self->link_multipart_objects;	1791	$self->link_multipart_objects;
1168
1169	if ($self->{path}->is_style_map) {
1170	$self->{deny_save} = 1;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;
1176	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1793	unless $self->difficulty;
		1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1179	$self->activate;	1803	$self->activate;
1180	}	1804	}
1181		1805
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1806	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1807	}
1184		1808
1185	sub load_map_sync {	1809	$self->post_load;
		1810	}
		1811
		1812	sub customise_for {
		1813	my ($self, $ob) = @_;
		1814
		1815	return find "~" . $ob->name . "/" . $self->{path}
		1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
		1820
		1821	$self
		1822	}
		1823
		1824	# find and load all maps in the 3x3 area around a map
		1825	sub load_diag {
		1826	my ($map) = @_;
		1827
		1828	my @diag; # diagonal neighbours
		1829
		1830	for (0 .. 3) {
		1831	my $neigh = $map->tile_path ($_)
		1832	or next;
		1833	$neigh = find $neigh, $map
		1834	or next;
		1835	$neigh->load;
		1836
		1837	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1838	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1839	}
		1840
		1841	for (@diag) {
		1842	my $neigh = find @$_
		1843	or next;
		1844	$neigh->load;
		1845	}
		1846	}
		1847
		1848	sub find_sync {
1186	my ($path, $origin) = @_;	1849	my ($path, $origin) = @_;
1187		1850
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1851	cf::sync_job { find $path, $origin }
		1852	}
1189		1853
1190	cf::sync_job {	1854	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1855	my ($map) = @_;
1192	or return;	1856
		1857	cf::sync_job { $map->load };
		1858	}
		1859
		1860	our %MAP_PREFETCH;
		1861	our $MAP_PREFETCHER = undef;
		1862
		1863	sub find_async {
		1864	my ($path, $origin) = @_;
		1865
		1866	$path = normalise $path, $origin && $origin->{path};
		1867
		1868	if (my $map = $cf::MAP{$path}) {
		1869	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1870	}
		1871
		1872	undef $MAP_PREFETCH{$path};
		1873	$MAP_PREFETCHER ||= cf::async {
		1874	while (%MAP_PREFETCH) {
		1875	for my $path (keys %MAP_PREFETCH) {
		1876	my $map = find $path
		1877	or next;
1193	$map->load;	1878	$map->load;
1194	$map	1879
		1880	delete $MAP_PREFETCH{$path};
		1881	}
		1882	}
		1883	undef $MAP_PREFETCHER;
1195	}	1884	};
		1885	$MAP_PREFETCHER->prio (6);
		1886
		1887	()
1196	}	1888	}
1197		1889
1198	sub save {	1890	sub save {
1199	my ($self) = @_;	1891	my ($self) = @_;
1200		1892
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1893	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1894
1204	$self->{last_save} = $cf::RUNTIME;	1895	$self->{last_save} = $cf::RUNTIME;
1205		1896
1206	return unless $self->dirty;	1897	return unless $self->dirty;
1207		1898
		1899	my $save = $self->save_path; utf8::encode $save;
		1900	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1901
1208	$self->{load_path} = $save;	1902	$self->{load_path} = $save;
1209		1903
1210	return if $self->{deny_save};	1904	return if $self->{deny_save};
1211		1905
1212	warn "saving map ", $self->path;	1906	local $self->{last_access} = $self->last_access;#d#
		1907
		1908	cf::async {
		1909	$_->contr->save for $self->players;
		1910	};
1213		1911
1214	if ($uniq) {	1912	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1913	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1914	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1915	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1916	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1917	}
1220	}	1918	}
1221		1919
1222	sub swap_out {	1920	sub swap_out {
1223	my ($self) = @_;	1921	my ($self) = @_;
		1922
		1923	# save first because save cedes
		1924	$self->save;
		1925
		1926	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1927
1225	return if $self->players;	1928	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1929	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1930	return if $self->{deny_save};
1228		1931
1229	$self->save;
1230	$self->clear;	1932	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1933	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1934	}
1233		1935
		1936	sub reset_at {
		1937	my ($self) = @_;
		1938
		1939	# TODO: safety, remove and allow resettable per-player maps
		1940	return 1e99 if $self->{deny_reset};
		1941
		1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1944
		1945	$time + $to
		1946	}
		1947
1234	sub should_reset {	1948	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	1949	my ($self) = @_;
1251		1950
1252	utf8::encode (my $save = $self->{path}->save_path);	1951	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	1952	}
1256		1953
1257	sub reset {	1954	sub reset {
1258	my ($self) = @_;	1955	my ($self) = @_;
1259		1956
		1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1958
1260	return if $self->players;	1959	return if $self->players;
1261	return if $self->{path}{user_rel};#d#
1262		1960
1263	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1264		1972
1265	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
		1974
		1975	$self->clear;
1266		1976
1267	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1268		1978
1269	$self->unlink_save;	1979	$self->unlink_save;
1270	$self->destroy;	1980	$self->destroy;
1271	}	1981	}
1272		1982
1273	sub customise_for {	1983	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		1984
1276	if ($map->per_player) {	1985	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1986	my ($self) = @_;
		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
		1994	$self->{deny_save} = 1;
		1995	$self->reset_timeout (1);
		1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
		2000	$self->reset; # polite request, might not happen
		2001	}
		2002
		2003	=item $maps = cf::map::tmp_maps
		2004
		2005	Returns an arrayref with all map paths of currently instantiated and saved
		2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
1278	}	2011	[
1279		2012	map {
1280	$map	2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
1281	}	2019	}
1282		2020
1283	sub emergency_save {	2021	=item $maps = cf::map::random_maps
1284	local $cf::FREEZE = 1;
1285		2022
1286	warn "enter emergency map save\n";	2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
1287		2025
1288	cf::sync_job {	2026	=cut
1289	warn "begin emergency map save\n";
1290	$_->save for values %cf::MAP;
1291	};
1292		2027
1293	warn "end emergency map save\n";	2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
		2039	=item cf::map::unique_maps
		2040
		2041	Returns an arrayref of paths of all shared maps that have
		2042	instantiated unique items. May block.
		2043
		2044	=cut
		2045
		2046	sub unique_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $UNIQUEDIR or [] }
		2054	]
1294	}	2055	}
1295		2056
1296	package cf;	2057	package cf;
1297		2058
1298	=back	2059	=back
1299		2060
		2061	=head3 cf::object
		2062
		2063	=cut
		2064
		2065	package cf::object;
		2066
		2067	=over 4
		2068
		2069	=item $ob->inv_recursive
		2070
		2071	Returns the inventory of the object _and_ their inventories, recursively.
		2072
		2073	=cut
		2074
		2075	sub inv_recursive_;
		2076	sub inv_recursive_ {
		2077	map { $_, inv_recursive_ $_->inv } @_
		2078	}
		2079
		2080	sub inv_recursive {
		2081	inv_recursive_ inv $_[0]
		2082	}
		2083
		2084	package cf;
		2085
		2086	=back
1300		2087
1301	=head3 cf::object::player	2088	=head3 cf::object::player
1302		2089
1303	=over 4	2090	=over 4
1304		2091
…		…
1318		2105
1319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1320		2107
1321	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1323	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1324	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1325	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1326	}	2127	}
1327	}	2128	}
1328		2129
1329	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1330		2131
…		…
1340	(ref $cf::CFG{"may_$access"}	2141	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2142	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	2143	: $cf::CFG{"may_$access"})
1343	}	2144	}
1344		2145
		2146	=item $player_object->enter_link
		2147
		2148	Freezes the player and moves him/her to a special map (C<{link}>).
		2149
		2150	The player should be reasonably safe there for short amounts of time. You
		2151	I<MUST> call C<leave_link> as soon as possible, though.
		2152
		2153	Will never block.
		2154
		2155	=item $player_object->leave_link ($map, $x, $y)
		2156
		2157	Moves the player out of the special C<{link}> map onto the specified
		2158	map. If the map is not valid (or omitted), the player will be moved back
		2159	to the location he/she was before the call to C<enter_link>, or, if that
		2160	fails, to the emergency map position.
		2161
		2162	Might block.
		2163
		2164	=cut
		2165
		2166	sub link_map {
		2167	unless ($LINK_MAP) {
		2168	$LINK_MAP = cf::map::find "{link}"
		2169	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2170	$LINK_MAP->load;
		2171	}
		2172
		2173	$LINK_MAP
		2174	}
		2175
1345	sub cf::object::player::enter_link {	2176	sub cf::object::player::enter_link {
1346	my ($self) = @_;	2177	my ($self) = @_;
1347		2178
1348	return if $self->map == $LINK_MAP;
1349
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;
1352
1353	$self->enter_map ($LINK_MAP, 20, 20);
1354	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
		2180
		2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2182
		2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2184	if $self->map && $self->map->{path} ne "{link}";
		2185
		2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1355	}	2187	}
1356		2188
1357	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
1359		2191
		2192	return unless $self->contr->active;
		2193
1360	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1361		2195
1362	unless ($map) {	2196	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	2197	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	2198	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	2199	$map = cf::map::find $map;
1368		2200
1369	unless ($map) {	2201	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	2202	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	2203	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	2204	or die "FATAL: cannot load emergency map\n";
1373	}	2205	}
1374	}	2206	}
1375		2207
1376	($x, $y) = (-1, -1)	2208	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	2211	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	2212	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	2213	if $x <=0 && $y <= 0;
1382		2214
1383	$map->load;	2215	$map->load;
		2216	$map->load_diag;
1384		2217
		2218	return unless $self->contr->active;
1385	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1387	}	2223	}
1388		2224
1389	=item $player_object->goto_map ($map, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1390		2226
1391	=cut	2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
1392		2231
		2232	=cut
		2233
		2234	our $GOTOGEN;
		2235
1393	sub cf::object::player::goto_map {	2236	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1395		2241
1396	$self->enter_link;	2242	$self->enter_link;
1397		2243
1398	(Coro::async {	2244	(async {
1399	$path = new cf::path $path;	2245	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1402	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
		2250	$map = $check->($map) if $check && $map;
		2251	} else {
		2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
1403		2254
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	2255	$map
		2256	};
1406		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
		2261	}
		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1407	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1408	})->prio (1);	2267	})->prio (1);
1409	}	2268	}
1410		2269
1411	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1412		2271
…		…
1414		2273
1415	sub parse_random_map_params {	2274	sub parse_random_map_params {
1416	my ($spec) = @_;	2275	my ($spec) = @_;
1417		2276
1418	my $rmp = { # defaults	2277	my $rmp = { # defaults
1419	xsize => 10,	2278	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
1421	};	2282	};
1422		2283
1423	for (split /\n/, $spec) {	2284	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	2285	my ($k, $v) = split /\s+/, $_, 2;
1425		2286
…		…
1429	$rmp	2290	$rmp
1430	}	2291	}
1431		2292
1432	sub prepare_random_map {	2293	sub prepare_random_map {
1433	my ($exit) = @_;	2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		2297
1435	# all this does is basically replace the /! path by	2298	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	2299	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	2300	# that depends on the exit object
1438		2301
1439	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1440		2303
1441	if ($exit->map) {	2304	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1446	}	2309	}
1447		2310
1448	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1449		2312
1450	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
1452		2316
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
		2319	undef $fh;
		2320	aio_rename "$meta~", $meta;
1455		2321
1456	$exit->slaying ("?random/$md5");	2322	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	2323	$exit->msg (undef);
1458	}	2324	}
1459	}	2325	}
…		…
1461	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1463		2329
1464	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1465		2331
		2332	if ($exit->slaying eq "/!") {
		2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
		2336	cf::sync_job { prepare_random_map $exit };
		2337	}
		2338
		2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2340	my $hp = $exit->stats->hp;
		2341	my $sp = $exit->stats->sp;
		2342
1466	$self->enter_link;	2343	$self->enter_link;
1467		2344
1468	(Coro::async {	2345	(async {
		2346	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	2347	unless (eval {
1470		2348	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		2349
1477	1;	2350	1;
1478	}) {	2351	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	2354	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2356
1484	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	2358	$self->leave_link;
1486	}	2359	}
1487	})->prio (1);	2360	})->prio (1);
…		…
1500		2373
1501	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1503		2376
1504	utf8::encode $text;	2377	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2379	}
1507		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1508		2431
1509	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1510		2433
1511	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1513	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1514		2437
1515	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1516	reliable at some point in the future.	2439	become reliable at some point in the future.
1517		2440
1518	=cut	2441	=cut
1519		2442
1520	sub cf::client::query {	2443	sub cf::client::query {
1521	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1529	utf8::encode $text;	2452	utf8::encode $text;
1530	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1531		2454
1532	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1533	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1534	}	2459	}
1535		2460
1536	cf::client->attach (	2461	cf::client->attach (
1537	on_reply => sub {	2462	on_reply => sub {
1538	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
1539		2464
1540	# this weird shuffling is so that direct followup queries	2465	# this weird shuffling is so that direct followup queries
1541	# get handled first	2466	# get handled first
1542	my $queue = delete $ns->{query_queue};	2467	my $queue = delete $ns->{query_queue}
		2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2469
1544	(shift @$queue)->[1]->($msg);	2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2472
1546	push @{ $ns->{query_queue} }, @$queue;	2473	push @{ $ns->{query_queue} }, @$queue;
1547		2474
1548	if (@{ $ns->{query_queue} } == @$queue) {	2475	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2476	if (@$queue) {
…		…
1551	} else {	2478	} else {
1552	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1553	}	2480	}
1554	}	2481	}
1555	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
1556	);	2501	);
1557		2502
1558	=item $client->coro (\&cb)	2503	=item $client->async (\&cb)
1559		2504
1560	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2506	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2507	or loss of connection).
1563		2508
1564	=cut	2509	=cut
1565		2510
1566	sub cf::client::coro {	2511	sub cf::client::async {
1567	my ($self, $cb) = @_;	2512	my ($self, $cb) = @_;
1568		2513
1569	my $coro; $coro = async {	2514	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2515
1576	$coro->on_destroy (sub {	2516	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2517	delete $self->{_coro}{$coro+0};
1578	});	2518	});
1579		2519
…		…
1612		2552
1613	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
1614		2554
1615	=pod	2555	=pod
1616		2556
1617	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
1618		2558
1619	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
1620	cf::object::player player	2560	cf::object::player player
1621	cf::player peaceful	2561	cf::player peaceful
1622	cf::map trigger	2562	cf::map trigger
…		…
1703	=back	2643	=back
1704		2644
1705	=cut	2645	=cut
1706		2646
1707	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
1708		2649
1709	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
1710		2652
1711	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
1712	currently store anything that can be serialised using Storable, which
1713	excludes objects.
1714		2654
1715	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
1716	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
1717		2658
1718	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
1719		2660
1720	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
1721		2663
1722	Return a hashref for use by the extension C<$family>, which can be
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725
1726	=item $value = cf::db_get $family => $key
1727
1728	Returns a single value from the database
1729
1730	=item cf::db_put $family => $hashref
1731
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734
1735	=item cf::db_put $family => $key => $value
1736
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747
1748	=cut
1749
1750	our $DB;
1751
1752	{
1753	my $path = cf::localdir . "/database.pst";
1754
1755	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };
1758	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
1759		2666
1760	my $pid;	2667	while (my ($face, $info) = each %$faces) {
1761		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1762	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1763	warn "saving database $path\n";#d# remove later	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1764	waitpid $pid, 0 if $pid;	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1765	if (0 == ($pid = fork)) {	2672	Coro::cede;
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});
1783
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}
1788
1789	sub db_get($;$) {
1790	@_ >= 2
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794
1795	sub db_put($$;$) {
1796	if (@_ >= 3) {
1797	$DB->{$_[0]}{$_[1]} = $_[2];
1798	} else {
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803
1804	cf::global->attach (
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	2673	}
1809	);
1810	}
1811		2674
1812	#############################################################################	2675	while (my ($face, $info) = each %$faces) {
1813	# the server's main()	2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	}
		2716
		2717	sub reload_treasures {
		2718	load_resource_file "$DATADIR/treasures"
		2719	or die "unable to load treasurelists\n";
		2720	}
		2721
		2722	sub reload_resources {
		2723	warn "reloading resource files...\n";
		2724
		2725	reload_regions;
		2726	reload_facedata;
		2727	#reload_archetypes;#d#
		2728	reload_archetypes;
		2729	reload_treasures;
		2730
		2731	warn "finished reloading resource files\n";
		2732	}
		2733
		2734	sub init {
		2735	reload_resources;
		2736	}
1814		2737
1815	sub cfg_load {	2738	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2739	open my $fh, "<:utf8", "$CONFDIR/config"
1817	or return;	2740	or return;
1818		2741
1819	local $/;	2742	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2743	*CFG = YAML::Syck::Load <$fh>;
		2744
		2745	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2746
		2747	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2748	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2749
		2750	if (exists $CFG{mlockall}) {
		2751	eval {
		2752	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2753	and die "WARNING: m(un)lockall failed: $!\n";
		2754	};
		2755	warn $@ if $@;
		2756	}
1821	}	2757	}
1822		2758
1823	sub main {	2759	sub main {
1824	# we must not ever block the main coroutine	2760	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2761	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2762	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2763	(async {
1828	Event::one_event;	2764	Event::one_event;
1829	})->();	2765	})->prio (Coro::PRIO_MAX);
1830	};	2766	};
1831		2767
1832	cfg_load;	2768	cfg_load;
1833	db_load;	2769	db_init;
1834	load_extensions;	2770	load_extensions;
		2771
		2772	$TICK_WATCHER->start;
1835	Event::loop;	2773	Event::loop;
1836	}	2774	}
1837		2775
1838	#############################################################################	2776	#############################################################################
1839	# initialisation	2777	# initialisation and cleanup
1840		2778
		2779	# install some emergency cleanup handlers
		2780	BEGIN {
		2781	for my $signal (qw(INT HUP TERM)) {
		2782	Event->signal (
		2783	reentrant => 0,
		2784	data => WF_AUTOCANCEL,
		2785	signal => $signal,
		2786	prio => 0,
		2787	cb => sub {
		2788	cf::cleanup "SIG$signal";
		2789	},
		2790	);
		2791	}
		2792	}
		2793
		2794	sub write_runtime {
		2795	my $runtime = "$LOCALDIR/runtime";
		2796
		2797	# first touch the runtime file to show we are still running:
		2798	# the fsync below can take a very very long time.
		2799
		2800	IO::AIO::aio_utime $runtime, undef, undef;
		2801
		2802	my $guard = cf::lock_acquire "write_runtime";
		2803
		2804	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2805	or return;
		2806
		2807	my $value = $cf::RUNTIME + 90 + 10;
		2808	# 10 is the runtime save interval, for a monotonic clock
		2809	# 60 allows for the watchdog to kill the server.
		2810
		2811	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2812	and return;
		2813
		2814	# always fsync - this file is important
		2815	aio_fsync $fh
		2816	and return;
		2817
		2818	# touch it again to show we are up-to-date
		2819	aio_utime $fh, undef, undef;
		2820
		2821	close $fh
		2822	or return;
		2823
		2824	aio_rename "$runtime~", $runtime
		2825	and return;
		2826
		2827	warn "runtime file written.\n";
		2828
		2829	1
		2830	}
		2831
		2832	sub emergency_save() {
		2833	my $freeze_guard = cf::freeze_mainloop;
		2834
		2835	warn "enter emergency perl save\n";
		2836
		2837	cf::sync_job {
		2838	# use a peculiar iteration method to avoid tripping on perl
		2839	# refcount bugs in for. also avoids problems with players
		2840	# and maps saved/destroyed asynchronously.
		2841	warn "begin emergency player save\n";
		2842	for my $login (keys %cf::PLAYER) {
		2843	my $pl = $cf::PLAYER{$login} or next;
		2844	$pl->valid or next;
		2845	$pl->save;
		2846	}
		2847	warn "end emergency player save\n";
		2848
		2849	warn "begin emergency map save\n";
		2850	for my $path (keys %cf::MAP) {
		2851	my $map = $cf::MAP{$path} or next;
		2852	$map->valid or next;
		2853	$map->save;
		2854	}
		2855	warn "end emergency map save\n";
		2856
		2857	warn "begin emergency database checkpoint\n";
		2858	BDB::db_env_txn_checkpoint $DB_ENV;
		2859	warn "end emergency database checkpoint\n";
		2860	};
		2861
		2862	warn "leave emergency perl save\n";
		2863	}
		2864
		2865	sub post_cleanup {
		2866	my ($make_core) = @_;
		2867
		2868	warn Carp::longmess "post_cleanup backtrace"
		2869	if $make_core;
		2870	}
		2871
1841	sub reload() {	2872	sub do_reload_perl() {
1842	# can/must only be called in main	2873	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	2874	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	2875	warn "can only reload from main coroutine";
1845	return;	2876	return;
1846	}	2877	}
1847		2878
1848	warn "reloading...";	2879	warn "reloading...";
1849		2880
1850	local $FREEZE = 1;	2881	warn "entering sync_job";
		2882
		2883	cf::sync_job {
		2884	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	2885	cf::emergency_save;
		2886	cf::write_runtime; # external watchdog should not bark
1852		2887
1853	eval {	2888	warn "syncing database to disk";
		2889	BDB::db_env_txn_checkpoint $DB_ENV;
		2890
1854	# if anything goes wrong in here, we should simply crash as we already saved	2891	# if anything goes wrong in here, we should simply crash as we already saved
1855		2892
1856	# cancel all watchers	2893	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	2894	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	2895	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	2896	}
1860		2897
		2898	warn "flushing outstanding aio requests";
		2899	for (;;) {
		2900	BDB::flush;
		2901	IO::AIO::flush;
		2902	Coro::cede;
		2903	last unless IO::AIO::nreqs || BDB::nreqs;
		2904	warn "iterate...";
		2905	}
		2906
		2907	++$RELOAD;
		2908
1861	# cancel all extension coros	2909	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	2910	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	2911	%EXT_CORO = ();
1864		2912
1865	# unload all extensions	2913	warn "removing commands";
1866	for (@exts) {	2914	%COMMAND = ();
		2915
		2916	warn "removing ext/exti commands";
		2917	%EXTCMD = ();
		2918	%EXTICMD = ();
		2919
		2920	warn "unloading/nuking all extensions";
		2921	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	2922	warn "... unloading $pkg";
1868	unload_extension $_;	2923
		2924	if (my $cb = $pkg->can ("unload")) {
		2925	eval {
		2926	$cb->($pkg);
		2927	1
		2928	} or warn "$pkg unloaded, but with errors: $@";
1869	}	2929	}
1870		2930
		2931	warn "... nuking $pkg";
		2932	Symbol::delete_package $pkg;
		2933	}
		2934
1871	# unload all modules loaded from $LIBDIR	2935	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	2936	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2937	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		2938
1875	warn "removing <$k>";	2939	warn "... unloading $k";
1876	delete $INC{$k};	2940	delete $INC{$k};
1877		2941
1878	$k =~ s/\.pm$//;	2942	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	2943	$k =~ s/\//::/g;
1880		2944
…		…
1883	}	2947	}
1884		2948
1885	Symbol::delete_package $k;	2949	Symbol::delete_package $k;
1886	}	2950	}
1887		2951
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	2952	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	2953	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2954	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		2955
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	2956	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	2957	delete $INC{"cf.pm"};
		2958	delete $INC{"cf/pod.pm"};
1901		2959
1902	# don't, removes xs symbols, too,	2960	# don't, removes xs symbols, too,
1903	# and global variables created in xs	2961	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	2962	#Symbol::delete_package __PACKAGE__;
1905		2963
1906	# reload cf.pm	2964	warn "unload completed, starting to reload now";
		2965
1907	warn "reloading cf.pm";	2966	warn "reloading cf.pm";
1908	require cf;	2967	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2968	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		2969
1911	# load config and database again	2970	warn "loading config and database again";
1912	cf::cfg_load;	2971	cf::cfg_load;
1913	cf::db_load;
1914		2972
1915	# load extensions
1916	warn "load extensions";	2973	warn "loading extensions";
1917	cf::load_extensions;	2974	cf::load_extensions;
1918		2975
1919	# reattach attachments to objects	2976	warn "reattaching attachments to objects/players";
1920	warn "reattach";	2977	_global_reattach; # objects, sockets
1921	_global_reattach;	2978	warn "reattaching attachments to maps";
1922	};	2979	reattach $_ for values %MAP;
		2980	warn "reattaching attachments to players";
		2981	reattach $_ for values %PLAYER;
1923		2982
1924	if ($@) {	2983	warn "leaving sync_job";
		2984
		2985	1
		2986	} or do {
1925	warn $@;	2987	warn $@;
1926	warn "error while reloading, exiting.";	2988	warn "error while reloading, exiting.";
1927	exit 1;	2989	exit 1;
1928	}	2990	};
1929		2991
1930	warn "reloaded successfully";	2992	warn "reloaded";
1931	};	2993	};
1932		2994
1933	#############################################################################	2995	our $RELOAD_WATCHER; # used only during reload
1934		2996
1935	unless ($LINK_MAP) {	2997	sub reload_perl() {
1936	$LINK_MAP = cf::map::new;	2998	# doing reload synchronously and two reloads happen back-to-back,
		2999	# coro crashes during coro_state_free->destroy here.
1937		3000
1938	$LINK_MAP->width (41);	3001	$RELOAD_WATCHER ||= Event->timer (
1939	$LINK_MAP->height (41);	3002	reentrant => 0,
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,	3003	after => 0,
		3004	data => WF_AUTOCANCEL,
1948	cb => sub {	3005	cb => sub {
1949	$_[0]->w->cancel;	3006	do_reload_perl;
1950		3007	undef $RELOAD_WATCHER;
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});	3008	},
1969		3009	);
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}	3010	}
1975
1976	register "<global>", __PACKAGE__;
1977		3011
1978	register_command "reload" => sub {	3012	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	3013	my ($who, $arg) = @_;
1980		3014
1981	if ($who->flag (FLAG_WIZ)) {	3015	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");
1983	reload;
1984	$who->message ("end of reload.");	3016	$who->message ("reloading server.");
		3017	async { reload_perl };
1985	}	3018	}
1986	};	3019	};
1987		3020
1988	unshift @INC, $LIBDIR;	3021	unshift @INC, $LIBDIR;
1989		3022
		3023	my $bug_warning = 0;
		3024
		3025	our @WAIT_FOR_TICK;
		3026	our @WAIT_FOR_TICK_BEGIN;
		3027
		3028	sub wait_for_tick {
		3029	return unless $TICK_WATCHER->is_active;
		3030	return if $Coro::current == $Coro::main;
		3031
		3032	my $signal = new Coro::Signal;
		3033	push @WAIT_FOR_TICK, $signal;
		3034	$signal->wait;
		3035	}
		3036
		3037	sub wait_for_tick_begin {
		3038	return unless $TICK_WATCHER->is_active;
		3039	return if $Coro::current == $Coro::main;
		3040
		3041	my $signal = new Coro::Signal;
		3042	push @WAIT_FOR_TICK_BEGIN, $signal;
		3043	$signal->wait;
		3044	}
		3045
		3046	my $min = 1e6;#d#
		3047	my $avg = 10;
1990	$TICK_WATCHER = Event->timer (	3048	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	3049	reentrant => 0,
		3050	parked => 1,
1992	prio => 0,	3051	prio => 0,
1993	at => $NEXT_TICK || $TICK,	3052	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	3053	data => WF_AUTOCANCEL,
1995	cb => sub {	3054	cb => sub {
1996	unless ($FREEZE) {	3055	if ($Coro::current != $Coro::main) {
		3056	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3057	unless ++$bug_warning > 10;
		3058	return;
		3059	}
		3060
		3061	$NOW = $tick_start = Event::time;
		3062
1997	cf::server_tick; # one server iteration	3063	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	3064
		3065	0 && sync_job {#d#
		3066	for(1..10) {
		3067	my $t = Event::time;
		3068	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3069	or die;
		3070
		3071	$map->width (50);
		3072	$map->height (50);
		3073	$map->alloc;
		3074	$map->_load_objects ("/tmp/x.map", 1);
		3075	my $t = Event::time - $t;
		3076
		3077	#next unless $t < 0.0013;#d#
		3078	if ($t < $min) {
		3079	$min = $t;
		3080	}
		3081	$avg = $avg * 0.99 + $t * 0.01;
		3082	}
		3083	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3084	exit 0;
		3085	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1999	}	3086	};
2000		3087
		3088	$RUNTIME += $TICK;
2001	$NEXT_TICK += $TICK;	3089	$NEXT_TICK += $TICK;
2002		3090
		3091	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3092	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3093	Coro::async_pool {
		3094	write_runtime
		3095	or warn "ERROR: unable to write runtime file: $!";
		3096	};
		3097	}
		3098
		3099	# my $AFTER = Event::time;
		3100	# warn $AFTER - $NOW;#d#
		3101
		3102	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3103	$sig->send;
		3104	}
		3105	while (my $sig = shift @WAIT_FOR_TICK) {
		3106	$sig->send;
		3107	}
		3108
		3109	$NOW = Event::time;
		3110
2003	# if we are delayed by four ticks or more, skip them all	3111	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3112	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2005		3113
2006	$TICK_WATCHER->at ($NEXT_TICK);	3114	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	3115	$TICK_WATCHER->start;
		3116
		3117	$LOAD = ($NOW - $tick_start) / $TICK;
		3118	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3119
		3120	_post_tick;
		3121
		3122
2008	},	3123	},
2009	);	3124	);
2010		3125
		3126	{
2011	IO::AIO::max_poll_time $TICK * 0.2;	3127	BDB::max_poll_time $TICK * 0.1;
2012		3128	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	3129	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	3130	fd => BDB::poll_fileno,
2015	poll => 'r',	3131	poll => 'r',
2016	prio => 5,	3132	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	3133	data => WF_AUTOCANCEL,
2023	after => 0,	3134	cb => \&BDB::poll_cb,
2024	interval => 10,	3135	);
2025	cb => sub {	3136	BDB::min_parallel 8;
2026	(Coro::unblock_sub {	3137
2027	write_runtime	3138	BDB::set_sync_prepare {
2028	or warn "ERROR: unable to write runtime file: $!";	3139	my $status;
		3140	my $current = $Coro::current;
		3141	(
		3142	sub {
		3143	$status = $!;
		3144	$current->ready; undef $current;
		3145	},
		3146	sub {
		3147	Coro::schedule while defined $current;
		3148	$! = $status;
		3149	},
		3150	)
		3151	};
		3152
		3153	unless ($DB_ENV) {
		3154	$DB_ENV = BDB::db_env_create;
		3155
		3156	cf::sync_job {
		3157	eval {
		3158	BDB::db_env_open
		3159	$DB_ENV,
		3160	$BDBDIR,
		3161	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3162	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3163	0666;
		3164
		3165	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3166
		3167	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3168	$DB_ENV->set_lk_detect;
		3169	};
		3170
		3171	cf::cleanup "db_env_open(db): $@" if $@;
2029	})->();	3172	};
2030	},	3173	}
2031	);	3174	}
		3175
		3176	{
		3177	IO::AIO::min_parallel 8;
		3178
		3179	undef $Coro::AIO::WATCHER;
		3180	IO::AIO::max_poll_time $TICK * 0.1;
		3181	$AIO_POLL_WATCHER = Event->io (
		3182	reentrant => 0,
		3183	data => WF_AUTOCANCEL,
		3184	fd => IO::AIO::poll_fileno,
		3185	poll => 'r',
		3186	prio => 6,
		3187	cb => \&IO::AIO::poll_cb,
		3188	);
		3189	}
		3190
		3191	my $_log_backtrace;
		3192
		3193	sub _log_backtrace {
		3194	my ($msg, @addr) = @_;
		3195
		3196	$msg =~ s/\n//;
		3197
		3198	# limit the # of concurrent backtraces
		3199	if ($_log_backtrace < 2) {
		3200	++$_log_backtrace;
		3201	async {
		3202	my @bt = fork_call {
		3203	@addr = map { sprintf "%x", $_ } @addr;
		3204	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3205	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3206	or die "addr2line: $!";
		3207
		3208	my @funcs;
		3209	my @res = <$fh>;
		3210	chomp for @res;
		3211	while (@res) {
		3212	my ($func, $line) = splice @res, 0, 2, ();
		3213	push @funcs, "[$func] $line";
		3214	}
		3215
		3216	@funcs
		3217	};
		3218
		3219	LOG llevInfo, "[ABT] $msg\n";
		3220	LOG llevInfo, "[ABT] $_\n" for @bt;
		3221	--$_log_backtrace;
		3222	};
		3223	} else {
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] [suppressed]\n";
		3226	}
		3227	}
		3228
		3229	# load additional modules
		3230	use cf::pod;
		3231
		3232	END { cf::emergency_save }
2032		3233
2033	1	3234	1
2034		3235

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