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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.291 by root, Tue Jul 3 00:54:44 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 $RANDOM_MAPS = cf::localdir . "/random";	93
55	our %EXT_CORO;	94	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $tick_start; # for load detecting purposes
56		100
57	binmode STDOUT;	101	binmode STDOUT;
58	binmode STDERR;	102	binmode STDERR;
59		103
60	# read virtual server time, if available	104	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
65	}	109	}
66		110
67	mkdir cf::localdir;	111	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		113
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
76		117
77	#############################################################################	118	#############################################################################
78		119
79	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
80		121
…		…
87	=item $cf::RUNTIME	128	=item $cf::RUNTIME
88		129
89	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
90	every server tick.	131	every server tick.
91		132
92	=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
93		136
94	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		141
97	=item $cf::NOW	142	=item $cf::NOW
98		143
99	The time of the last (current) server tick.	144	The time of the last (current) server tick.
100		145
101	=item $cf::TICK	146	=item $cf::TICK
102		147
103	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.
104		159
105	=item %cf::CFG	160	=item %cf::CFG
106		161
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		170
110	=back	171	=back
111		172
112	=cut	173	=cut
113		174
114	BEGIN {	175	BEGIN {
115	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	177	my $msg = join "", @_;
117	utf8::encode $msg;
118		178
119	$msg .= "\n"	179	$msg .= "\n"
120	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
121		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
123	};	186	};
124	}	187	}
125		188
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		196
133	# 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
134	# within the Safe compartment.	198	# within the Safe compartment.
135	for my $pkg (qw(	199	for my $pkg (qw(
136	cf::global cf::attachable	200	cf::global cf::attachable
…		…
145		209
146	$Event::DIED = sub {	210	$Event::DIED = sub {
147	warn "error in event callback: @_";	211	warn "error in event callback: @_";
148	};	212	};
149		213
150	my %ext_pkg;	214	#############################################################################
151	my @exts;
152	my @hook;
153		215
154	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
155		217
156	=over 4	218	=over 4
157		219
158	=cut	220	=item dumpval $ref
159		221
160	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	}
161		242
162	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
163		244
164	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
165		246
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
174		248
175	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
176		250
177	=cut	251	=cut
178		252
179	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
181	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
183		257
184	=item cf::lock_wait $string	258	=item cf::lock_wait $string
185		259
186	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
187		261
…		…
193	returned.	267	returned.
194		268
195	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
197		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
198	=cut	276	=cut
199		277
200	our %LOCK;	278	our %LOCK;
201		279
202	sub lock_wait($) {	280	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
223	}	301	}
224	}	302	}
225		303
226	=item cf::async { BLOCK }	304	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	305	my ($key) = @_;
235		306
236	Coro::async {	307	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	308	}
241		309
242	sub freeze_mainloop {	310	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
244		312
245	my $guard = Coro::guard { $TICK_WATCHER->start };	313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
246	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
247	$guard	317	$guard
248	}	318	}
249		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
250	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
251		331
252	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
255		336
256	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
259	fast or be very important.	340	fast or be very important.
…		…
262		343
263	sub sync_job(&) {	344	sub sync_job(&) {
264	my ($job) = @_;	345	my ($job) = @_;
265		346
266	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
267	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
269		352
270	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	354	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	355	my $freeze_guard = freeze_mainloop;
273		356
274	my $busy = 1;	357	my $busy = 1;
275	my @res;	358	my @res;
276		359
277	(Coro::async {	360	(async {
278	@res = eval { $job->() };	361	@res = eval { $job->() };
279	warn $@ if $@;	362	warn $@ if $@;
280	undef $busy;	363	undef $busy;
281	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
282		365
283	while ($busy) {	366	while ($busy) {
284	Coro::cede_notself;	367	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	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
287		376
288	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
289	} else {	378	} else {
290	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
291		380
292	$job->()	381	$job->()
293	}	382	}
294	}	383	}
295		384
296	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
297		386
298	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
300		389
301	=cut	390	=cut
302		391
303	sub coro(&) {	392	sub async_ext(&) {
304	my $cb = shift;	393	my $cb = shift;
305		394
306	my $coro = &cf::async ($cb);	395	my $coro = &Coro::async ($cb);
307		396
308	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
310	});	399	});
311	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
312		401
313	$coro	402	$coro
314	}	403	}
315		404
316	sub write_runtime {	405	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		406
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
320	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.
321		411
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		413
326	aio_fsync $fh	414	sub fork_call(&@) {
327	and return;	415	my ($cb, @args) = @_;
328		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) {
329	close $fh	423	close $fh2;
330	or return;
331		424
332	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
333	and return;	426	$res = Coro::Storable::thaw $res;
334		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
335	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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 });
336	}	574	}
337		575
338	=back	576	=back
339		577
340	=cut	578	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		579
462	#############################################################################	580	#############################################################################
463		581
464	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
465		583
…		…
467	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")
468	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
469		587
470	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>
471	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
472	crossfire+).	590	Crossfire TRT).
473		591
474	=over 4	592	=over 4
475		593
476	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
477		595
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	710	our @CB_MAP = ();
593		711
594	my %attachment;	712	my %attachment;
595		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
596	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
598		722
599	use sort 'stable';	723	use sort 'stable';
600		724
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
635		759
636	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		764
641	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	766	my $pkg = shift @arg;
643		767
644	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
674	}	798	}
675		799
676	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
677	} else {	801	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	803	}
680		804
681	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
682	}	806	}
683		807
…		…
685	if (ref $_[0]) {	809	if (ref $_[0]) {
686	_object_attach @_;	810	_object_attach @_;
687	} else {	811	} else {
688	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
689	}	813	}
		814	_recalc_want;
690	};	815	};
691		816
692	# all those should be optimised	817	# all those should be optimised
693	sub cf::attachable::detach {	818	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
698	reattach ($obj);	823	reattach ($obj);
699	} else {	824	} else {
700	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
701	}	826	}
		827	_recalc_want;
702	};	828	};
703		829
704	sub cf::attachable::attached {	830	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
706		832
…		…
771	# object support	897	# object support
772		898
773	sub reattach {	899	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		904
777	my $registry = $obj->registry;	905	my $registry = $obj->registry;
778		906
779	@$registry = ();	907	@$registry = ();
780		908
…		…
827	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
828		956
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	961	close $fh;
834		962
835	if (@$objs) {	963	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	969	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
843	}	971	}
844	} else {	972	} else {
845	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
877	or return;	1005	or return;
878	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
879	}	1007	}
880		1008
881	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
883	return ($data, $av);	1011	return ($data, $av);
884	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
885		1019
886	#############################################################################	1020	#############################################################################
887	# command handling &c	1021	# command handling &c
888		1022
889	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1037	}
904		1038
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1040
907	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.
908		1046
909	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
910	called.	1048	called.
911		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
912	=cut	1061	=cut
913		1062
914	sub register_extcmd {	1063	sub register_extcmd {
915	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
916		1065
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
921	}	1073	}
922		1074
923	cf::player->attach (	1075	cf::player->attach (
924	on_command => sub {	1076	on_command => sub {
925	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1086	cf::override;
935	},	1087	},
936	on_extcmd => sub {	1088	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
938		1090
939	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1092
941	if (ref $msg) {	1093	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	1097	}
946	}	1098	}
947	} else {	1099	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		1102
951	cf::override;	1103	cf::override;
952	},	1104	},
953	);	1105	);
954		1106
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	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<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	warn "hm<$_[0] $_[1]>\n";#d#
		1424	$_[0]{hintmode} = $_[1] if @_ > 1;
		1425	$_[0]{hintmode}
		1426	}
		1427
		1428	=item $player->ext_reply ($msgid, %msg)
		1429
		1430	Sends an ext reply to the player.
		1431
		1432	=cut
		1433
		1434	sub ext_reply($$%) {
		1435	my ($self, $id, %msg) = @_;
		1436
		1437	$msg{msgid} = $id;
		1438	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1439	}
		1440
		1441	=item $player->ext_event ($type, %msg)
		1442
		1443	Sends an ext event to the client.
		1444
		1445	=cut
		1446
		1447	sub ext_event($$%) {
		1448	my ($self, $type, %msg) = @_;
		1449
		1450	$self->ns->ext_event ($type, %msg);
		1451	}
		1452
		1453	=head3 cf::region
		1454
		1455	=over 4
		1456
		1457	=cut
		1458
		1459	package cf::region;
		1460
		1461	=item cf::region::find_by_path $path
		1462
		1463	Tries to decuce the likely region for a map knowing only its path.
		1464
		1465	=cut
		1466
		1467	sub find_by_path($) {
962	my ($path) = @_;	1468	my ($path) = @_;
963		1469
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1471
970	warn "loading '$path' into '$pkg'\n";	1472	for my $region (list) {
971		1473	if ($region->match && $path =~ $region->match) {
972	open my $fh, "<:utf8", $path	1474	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1475	if $region->specificity > $specificity;
974		1476	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1477	}
1004		1478
1005	# remove commands	1479	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1480	}
1111		1481
1112	=back	1482	=back
1113
1114		1483
1115	=head3 cf::map	1484	=head3 cf::map
1116		1485
1117	=over 4	1486	=over 4
1118		1487
…		…
1121	package cf::map;	1490	package cf::map;
1122		1491
1123	use Fcntl;	1492	use Fcntl;
1124	use Coro::AIO;	1493	use Coro::AIO;
1125		1494
		1495	use overload
		1496	'""' => \&as_string,
		1497	fallback => 1;
		1498
1126	our $MAX_RESET = 3600;	1499	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1500	our $DEFAULT_RESET = 3000;
1128		1501
1129	sub generate_random_map {	1502	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1503	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1504	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1505	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1506	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1507	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1508	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1509	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1510	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1511	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1512	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1513	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1514	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1515	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1516	(cf::region::find $rmp->{region}), $rmp->{custom}
		1517	)
		1518	}
		1519
		1520	=item cf::map->register ($regex, $prio)
		1521
		1522	Register a handler for the map path matching the given regex at the
		1523	givne priority (higher is better, built-in handlers have priority 0, the
		1524	default).
		1525
		1526	=cut
		1527
		1528	sub register {
		1529	my (undef, $regex, $prio) = @_;
		1530	my $pkg = caller;
		1531
		1532	no strict;
		1533	push @{"$pkg\::ISA"}, __PACKAGE__;
		1534
		1535	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1536	}
		1537
		1538	# also paths starting with '/'
		1539	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1540
		1541	sub thawer_merge {
		1542	my ($self, $merge) = @_;
		1543
		1544	# we have to keep some variables in memory intact
		1545	local $self->{path};
		1546	local $self->{load_path};
		1547
		1548	$self->SUPER::thawer_merge ($merge);
		1549	}
		1550
		1551	sub normalise {
		1552	my ($path, $base) = @_;
		1553
		1554	$path = "$path"; # make sure its a string
		1555
		1556	$path =~ s/\.map$//;
		1557
		1558	# map plan:
		1559	#
		1560	# /! non-realised random map exit (special hack!)
		1561	# {... are special paths that are not being touched
		1562	# ?xxx/... are special absolute paths
		1563	# ?random/... random maps
		1564	# /... normal maps
		1565	# ~user/... per-player map of a specific user
		1566
		1567	$path =~ s/$PATH_SEP/\//go;
		1568
		1569	# treat it as relative path if it starts with
		1570	# something that looks reasonable
		1571	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1572	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1573
		1574	$base =~ s{[^/]+/?$}{};
		1575	$path = "$base/$path";
		1576	}
		1577
		1578	for ($path) {
		1579	redo if s{//}{/};
		1580	redo if s{/\.?/}{/};
		1581	redo if s{/[^/]+/\.\./}{/};
		1582	}
		1583
		1584	$path
		1585	}
		1586
		1587	sub new_from_path {
		1588	my (undef, $path, $base) = @_;
		1589
		1590	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1591
		1592	$path = normalise $path, $base;
		1593
		1594	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1595	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1596	my $self = bless cf::map::new, $pkg;
		1597	$self->{path} = $path; $self->path ($path);
		1598	$self->init; # pass $1 etc.
		1599	return $self;
		1600	}
		1601	}
		1602
		1603	Carp::carp "unable to resolve path '$path' (base '$base').";
		1604	()
		1605	}
		1606
		1607	sub init {
		1608	my ($self) = @_;
		1609
		1610	$self
		1611	}
		1612
		1613	sub as_string {
		1614	my ($self) = @_;
		1615
		1616	"$self->{path}"
		1617	}
		1618
		1619	# the displayed name, this is a one way mapping
		1620	sub visible_name {
		1621	&as_string
		1622	}
		1623
		1624	# the original (read-only) location
		1625	sub load_path {
		1626	my ($self) = @_;
		1627
		1628	"$MAPDIR/$self->{path}.map"
		1629	}
		1630
		1631	# the temporary/swap location
		1632	sub save_path {
		1633	my ($self) = @_;
		1634
		1635	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1636	"$TMPDIR/$path.map"
		1637	}
		1638
		1639	# the unique path, undef == no special unique path
		1640	sub uniq_path {
		1641	my ($self) = @_;
		1642
		1643	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1644	"$UNIQUEDIR/$path"
1146	}	1645	}
1147		1646
1148	# and all this just because we cannot iterate over	1647	# and all this just because we cannot iterate over
1149	# all maps in C++...	1648	# all maps in C++...
1150	sub change_all_map_light {	1649	sub change_all_map_light {
…		…
1152		1651
1153	$_->change_map_light ($change)	1652	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1653	for grep $_->outdoor, values %cf::MAP;
1155	}	1654	}
1156		1655
		1656	sub decay_objects {
		1657	my ($self) = @_;
		1658
		1659	return if $self->{deny_reset};
		1660
		1661	$self->do_decay_objects;
		1662	}
		1663
		1664	sub unlink_save {
		1665	my ($self) = @_;
		1666
		1667	utf8::encode (my $save = $self->save_path);
		1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1669	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1670	}
		1671
1157	sub try_load_header($) {	1672	sub load_header_from($) {
1158	my ($path) = @_;	1673	my ($self, $path) = @_;
1159		1674
1160	utf8::encode $path;	1675	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1676	#aio_open $path, O_RDONLY, 0
		1677	# or return;
		1678
		1679	$self->_load_header ($path)
1162	or return;	1680	or return;
1163		1681
1164	my $map = cf::map::new	1682	$self->{load_path} = $path;
		1683
		1684	1
		1685	}
		1686
		1687	sub load_header_orig {
		1688	my ($self) = @_;
		1689
		1690	$self->load_header_from ($self->load_path)
		1691	}
		1692
		1693	sub load_header_temp {
		1694	my ($self) = @_;
		1695
		1696	$self->load_header_from ($self->save_path)
		1697	}
		1698
		1699	sub prepare_temp {
		1700	my ($self) = @_;
		1701
		1702	$self->last_access ((delete $self->{last_access})
		1703	|| $cf::RUNTIME); #d#
		1704	# safety
		1705	$self->{instantiate_time} = $cf::RUNTIME
		1706	if $self->{instantiate_time} > $cf::RUNTIME;
		1707	}
		1708
		1709	sub prepare_orig {
		1710	my ($self) = @_;
		1711
		1712	$self->{load_original} = 1;
		1713	$self->{instantiate_time} = $cf::RUNTIME;
		1714	$self->last_access ($cf::RUNTIME);
		1715	$self->instantiate;
		1716	}
		1717
		1718	sub load_header {
		1719	my ($self) = @_;
		1720
		1721	if ($self->load_header_temp) {
		1722	$self->prepare_temp;
		1723	} else {
		1724	$self->load_header_orig
1165	or return;	1725	or return;
		1726	$self->prepare_orig;
		1727	}
1166		1728
1167	# for better error messages only, will be overwritten	1729	$self->{deny_reset} = 1
1168	$map->path ($path);	1730	if $self->no_reset;
1169		1731
1170	$map->load_header ($path)	1732	$self->default_region (cf::region::find_by_path $self->{path})
1171	or return;	1733	unless $self->default_region;
1172		1734
1173	$map->{load_path} = $path;	1735	1
1174
1175	$map
1176	}	1736	}
1177		1737
1178	sub find;	1738	sub find;
1179	sub find {	1739	sub find {
1180	my ($path, $origin) = @_;	1740	my ($path, $origin) = @_;
1181		1741
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1742	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1743
1187	cf::lock_wait "map_find:$key";	1744	cf::lock_wait "map_find:$path";
1188		1745
1189	$cf::MAP{$key} || do {	1746	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1747	my $guard = cf::lock_acquire "map_find:$path";
1191		1748	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1749	or return;
1211		1750
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1751	$map->{last_save} = $cf::RUNTIME;
1224		1752
1225	Coro::cede;	1753	$map->load_header
		1754	or return;
1226		1755
1227	if ($map->should_reset) {	1756	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1757	# doing this can freeze the server in a sync job, obviously
		1758	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1759	$map->reset;
1229	undef $guard;	1760	undef $guard;
1230	$map = find $path	1761	return find $path;
1231	or return;
1232	}	1762	}
1233		1763
1234	$cf::MAP{$key} = $map	1764	$cf::MAP{$path} = $map
1235	}	1765	}
1236	}	1766	}
		1767
		1768	sub pre_load { }
		1769	sub post_load { }
1237		1770
1238	sub load {	1771	sub load {
1239	my ($self) = @_;	1772	my ($self) = @_;
1240		1773
		1774	local $self->{deny_reset} = 1; # loading can take a long time
		1775
1241	my $path = $self->{path};	1776	my $path = $self->{path};
		1777
		1778	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1779	my $guard = cf::lock_acquire "map_load:$path";
1243		1780
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1781	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1782
1246	$self->in_memory (cf::MAP_LOADING);	1783	$self->in_memory (cf::MAP_LOADING);
1247		1784
1248	$self->alloc;	1785	$self->alloc;
		1786
		1787	$self->pre_load;
		1788	Coro::cede;
		1789
1249	$self->load_objects ($self->{load_path}, 1)	1790	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1791	or return;
1251		1792
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1793	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1794	if delete $self->{load_original};
1254		1795
1255	if (my $uniq = $path->uniq_path) {	1796	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1797	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1798	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1799	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1800	$self->_load_objects ($uniq, 0);
1260	}	1801	}
1261	}	1802	}
1262		1803
1263	Coro::cede;	1804	Coro::cede;
1264
1265	# now do the right thing for maps	1805	# now do the right thing for maps
1266	$self->link_multipart_objects;	1806	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1807	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1808	unless $self->difficulty;
		1809	Coro::cede;
		1810
		1811	unless ($self->{deny_activate}) {
		1812	$self->decay_objects;
		1813	$self->fix_auto_apply;
		1814	$self->update_buttons;
		1815	Coro::cede;
		1816	$self->set_darkness_map;
		1817	Coro::cede;
1278	$self->activate;	1818	$self->activate;
1279	}	1819	}
1280		1820
1281	Coro::cede;
1282
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1821	$self->in_memory (cf::MAP_IN_MEMORY);
		1822	}
		1823
		1824	$self->post_load;
		1825	}
		1826
		1827	sub customise_for {
		1828	my ($self, $ob) = @_;
		1829
		1830	return find "~" . $ob->name . "/" . $self->{path}
		1831	if $self->per_player;
		1832
		1833	# return find "?party/" . $ob->name . "/" . $self->{path}
		1834	# if $self->per_party;
		1835
		1836	$self
		1837	}
		1838
		1839	# find and load all maps in the 3x3 area around a map
		1840	sub load_diag {
		1841	my ($map) = @_;
		1842
		1843	my @diag; # diagonal neighbours
		1844
		1845	for (0 .. 3) {
		1846	my $neigh = $map->tile_path ($_)
		1847	or next;
		1848	$neigh = find $neigh, $map
		1849	or next;
		1850	$neigh->load;
		1851
		1852	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1853	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1854	}
		1855
		1856	for (@diag) {
		1857	my $neigh = find @$_
		1858	or next;
		1859	$neigh->load;
		1860	}
1284	}	1861	}
1285		1862
1286	sub find_sync {	1863	sub find_sync {
1287	my ($path, $origin) = @_;	1864	my ($path, $origin) = @_;
1288		1865
1289	cf::sync_job { cf::map::find $path, $origin }	1866	cf::sync_job { find $path, $origin }
1290	}	1867	}
1291		1868
1292	sub do_load_sync {	1869	sub do_load_sync {
1293	my ($map) = @_;	1870	my ($map) = @_;
1294		1871
1295	cf::sync_job { $map->load };	1872	cf::sync_job { $map->load };
1296	}	1873	}
1297		1874
		1875	our %MAP_PREFETCH;
		1876	our $MAP_PREFETCHER = undef;
		1877
		1878	sub find_async {
		1879	my ($path, $origin) = @_;
		1880
		1881	$path = normalise $path, $origin && $origin->{path};
		1882
		1883	if (my $map = $cf::MAP{$path}) {
		1884	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1885	}
		1886
		1887	undef $MAP_PREFETCH{$path};
		1888	$MAP_PREFETCHER ||= cf::async {
		1889	while (%MAP_PREFETCH) {
		1890	for my $path (keys %MAP_PREFETCH) {
		1891	my $map = find $path
		1892	or next;
		1893	$map->load;
		1894
		1895	delete $MAP_PREFETCH{$path};
		1896	}
		1897	}
		1898	undef $MAP_PREFETCHER;
		1899	};
		1900	$MAP_PREFETCHER->prio (6);
		1901
		1902	()
		1903	}
		1904
1298	sub save {	1905	sub save {
1299	my ($self) = @_;	1906	my ($self) = @_;
1300		1907
		1908	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1909
1301	$self->{last_save} = $cf::RUNTIME;	1910	$self->{last_save} = $cf::RUNTIME;
1302		1911
1303	return unless $self->dirty;	1912	return unless $self->dirty;
1304		1913
1305	my $save = $self->{path}->save_path; utf8::encode $save;	1914	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1915	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		1916
1308	$self->{load_path} = $save;	1917	$self->{load_path} = $save;
1309		1918
1310	return if $self->{deny_save};	1919	return if $self->{deny_save};
1311		1920
1312	local $self->{last_access} = $self->last_access;#d#	1921	local $self->{last_access} = $self->last_access;#d#
1313		1922
		1923	cf::async {
		1924	$_->contr->save for $self->players;
		1925	};
		1926
1314	if ($uniq) {	1927	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1928	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	1929	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	1930	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1931	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	1932	}
1320	}	1933	}
1321		1934
1322	sub swap_out {	1935	sub swap_out {
1323	my ($self) = @_;	1936	my ($self) = @_;
1324		1937
1325	# save first because save cedes	1938	# save first because save cedes
1326	$self->save;	1939	$self->save;
		1940
		1941	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		1942
1328	return if $self->players;	1943	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	1944	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	1945	return if $self->{deny_save};
1331		1946
…		…
1335		1950
1336	sub reset_at {	1951	sub reset_at {
1337	my ($self) = @_;	1952	my ($self) = @_;
1338		1953
1339	# TODO: safety, remove and allow resettable per-player maps	1954	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1955	return 1e99 if $self->{deny_reset};
1342		1956
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1957	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1958	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1959
…		…
1350	my ($self) = @_;	1964	my ($self) = @_;
1351		1965
1352	$self->reset_at <= $cf::RUNTIME	1966	$self->reset_at <= $cf::RUNTIME
1353	}	1967	}
1354		1968
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1969	sub reset {
1377	my ($self) = @_;	1970	my ($self) = @_;
1378		1971
		1972	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1973
1379	return if $self->players;	1974	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		1975
1382	warn "resetting map ", $self->path;#d#	1976	warn "resetting map ", $self->path;
		1977
		1978	$self->in_memory (cf::MAP_SWAPPED);
		1979
		1980	# need to save uniques path
		1981	unless ($self->{deny_save}) {
		1982	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1983
		1984	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1985	if $uniq;
		1986	}
1383		1987
1384	delete $cf::MAP{$self->path};	1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->clear;
1385		1991
1386	$_->clear_links_to ($self) for values %cf::MAP;	1992	$_->clear_links_to ($self) for values %cf::MAP;
1387		1993
1388	$self->unlink_save;	1994	$self->unlink_save;
1389	$self->destroy;	1995	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1998	my $nuke_counter = "aaaa";
1393		1999
1394	sub nuke {	2000	sub nuke {
1395	my ($self) = @_;	2001	my ($self) = @_;
1396		2002
		2003	delete $cf::MAP{$self->path};
		2004
		2005	$self->unlink_save;
		2006
		2007	bless $self, "cf::map";
		2008	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2009	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2010	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2011	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2012
		2013	$cf::MAP{$self->path} = $self;
		2014
1400	$self->reset; # polite request, might not happen	2015	$self->reset; # polite request, might not happen
1401	}	2016	}
1402		2017
1403	sub customise_for {	2018	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2019
1406	if ($map->per_player) {	2020	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2021	maps. May block.
		2022
		2023	=cut
		2024
		2025	sub tmp_maps() {
1408	}	2026	[
1409		2027	map {
1410	$map	2028	utf8::decode $_;
		2029	/\.map$/
		2030	? normalise $_
		2031	: ()
		2032	} @{ aio_readdir $TMPDIR or [] }
		2033	]
1411	}	2034	}
1412		2035
1413	sub emergency_save {	2036	=item $maps = cf::map::random_maps
1414	my $freeze_guard = cf::freeze_mainloop;
1415		2037
1416	warn "enter emergency map save\n";	2038	Returns an arrayref with all map paths of currently instantiated and saved
		2039	random maps. May block.
1417		2040
1418	cf::sync_job {	2041	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2042
1423	warn "end emergency map save\n";	2043	sub random_maps() {
		2044	[
		2045	map {
		2046	utf8::decode $_;
		2047	/\.map$/
		2048	? normalise "?random/$_"
		2049	: ()
		2050	} @{ aio_readdir $RANDOMDIR or [] }
		2051	]
		2052	}
		2053
		2054	=item cf::map::unique_maps
		2055
		2056	Returns an arrayref of paths of all shared maps that have
		2057	instantiated unique items. May block.
		2058
		2059	=cut
		2060
		2061	sub unique_maps() {
		2062	[
		2063	map {
		2064	utf8::decode $_;
		2065	/\.map$/
		2066	? normalise $_
		2067	: ()
		2068	} @{ aio_readdir $UNIQUEDIR or [] }
		2069	]
1424	}	2070	}
1425		2071
1426	package cf;	2072	package cf;
1427		2073
1428	=back	2074	=back
1429		2075
		2076	=head3 cf::object
		2077
		2078	=cut
		2079
		2080	package cf::object;
		2081
		2082	=over 4
		2083
		2084	=item $ob->inv_recursive
		2085
		2086	Returns the inventory of the object _and_ their inventories, recursively.
		2087
		2088	=cut
		2089
		2090	sub inv_recursive_;
		2091	sub inv_recursive_ {
		2092	map { $_, inv_recursive_ $_->inv } @_
		2093	}
		2094
		2095	sub inv_recursive {
		2096	inv_recursive_ inv $_[0]
		2097	}
		2098
		2099	package cf;
		2100
		2101	=back
1430		2102
1431	=head3 cf::object::player	2103	=head3 cf::object::player
1432		2104
1433	=over 4	2105	=over 4
1434		2106
…		…
1448		2120
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2121	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2122
1451	if ($self->{record_replies}) {	2123	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2124	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2125
1453	} else {	2126	} else {
		2127	my $pl = $self->contr;
		2128
		2129	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2130	my $diag = $pl->{npc_dialog};
		2131	$diag->{pl}->ext_reply (
		2132	$diag->{id},
		2133	msgtype => "reply",
		2134	msg => $diag->{pl}->expand_cfpod ($msg),
		2135	add_topics => []
		2136	);
		2137
		2138	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2139	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2140	$self->message ($msg, $flags);
		2141	}
1456	}	2142	}
1457	}	2143	}
1458		2144
1459	=item $player_object->may ("access")	2145	=item $player_object->may ("access")
1460		2146
…		…
1474		2160
1475	=item $player_object->enter_link	2161	=item $player_object->enter_link
1476		2162
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2163	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2164
1479	The player should be reaosnably safe there for short amounts of time. You	2165	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	2166	I<MUST> call C<leave_link> as soon as possible, though.
1481		2167
		2168	Will never block.
		2169
1482	=item $player_object->leave_link ($map, $x, $y)	2170	=item $player_object->leave_link ($map, $x, $y)
1483		2171
1484	Moves the player out of the specila link map onto the given map. If the	2172	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2173	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2174	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2175	fails, to the emergency map position.
1488		2176
1489	Might block.	2177	Might block.
1490		2178
1491	=cut	2179	=cut
		2180
		2181	sub link_map {
		2182	unless ($LINK_MAP) {
		2183	$LINK_MAP = cf::map::find "{link}"
		2184	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2185	$LINK_MAP->load;
		2186	}
		2187
		2188	$LINK_MAP
		2189	}
1492		2190
1493	sub cf::object::player::enter_link {	2191	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2192	my ($self) = @_;
1495		2193
1496	$self->deactivate_recursive;	2194	$self->deactivate_recursive;
1497		2195
1498	return if $self->map == $LINK_MAP;	2196	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2197
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2198	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2199	if $self->map && $self->map->{path} ne "{link}";
1502		2200
1503	$self->enter_map ($LINK_MAP, 20, 20);	2201	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2202	}
1505		2203
1506	sub cf::object::player::leave_link {	2204	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2205	my ($self, $map, $x, $y) = @_;
		2206
		2207	return unless $self->contr->active;
1508		2208
1509	my $link_pos = delete $self->{_link_pos};	2209	my $link_pos = delete $self->{_link_pos};
1510		2210
1511	unless ($map) {	2211	unless ($map) {
1512	# restore original map position	2212	# restore original map position
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2226	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2227	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2228	if $x <=0 && $y <= 0;
1529		2229
1530	$map->load;	2230	$map->load;
		2231	$map->load_diag;
1531		2232
		2233	return unless $self->contr->active;
1532	$self->activate_recursive;	2234	$self->activate_recursive;
		2235
		2236	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2237	$self->enter_map ($map, $x, $y);
1534	}	2238	}
1535		2239
1536	cf::player->attach (
1537	on_logout => sub {
1538	my ($pl) = @_;
1539
1540	# abort map switching before logout
1541	if ($pl->ob->{_link_pos}) {
1542	cf::sync_job {
1543	$pl->ob->leave_link
1544	};
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto ($path, $x, $y)	2240	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1565		2241
		2242	Moves the player to the given map-path and coordinates by first freezing
		2243	her, loading and preparing them map, calling the provided $check callback
		2244	that has to return the map if sucecssful, and then unfreezes the player on
		2245	the new (success) or old (failed) map position.
		2246
1566	=cut	2247	=cut
		2248
		2249	our $GOTOGEN;
1567		2250
1568	sub cf::object::player::goto {	2251	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2252	my ($self, $path, $x, $y, $check) = @_;
		2253
		2254	# do generation counting so two concurrent goto's will be executed in-order
		2255	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2256
1571	$self->enter_link;	2257	$self->enter_link;
1572		2258
1573	(cf::async {	2259	(async {
1574	$path = new cf::path $path;	2260	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	2261	my $map = cf::map::find $path;
		2262
		2263	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2264	$map = $map->customise_for ($self);
1578		2265	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2266	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2267	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2268	}
1583		2269
		2270	$map
		2271	};
		2272
		2273	if ($@) {
		2274	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2275	LOG llevError | logBacktrace, Carp::longmess $@;
		2276	}
		2277
		2278	if ($gen == $self->{_goto_generation}) {
		2279	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2280	$self->leave_link ($map, $x, $y);
		2281	}
1585	})->prio (1);	2282	})->prio (1);
1586	}	2283	}
1587		2284
1588	=item $player_object->enter_exit ($exit_object)	2285	=item $player_object->enter_exit ($exit_object)
1589		2286
…		…
1591		2288
1592	sub parse_random_map_params {	2289	sub parse_random_map_params {
1593	my ($spec) = @_;	2290	my ($spec) = @_;
1594		2291
1595	my $rmp = { # defaults	2292	my $rmp = { # defaults
1596	xsize => 10,	2293	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2294	ysize => (cf::rndm 15, 40),
		2295	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2296	#layout => string,
1598	};	2297	};
1599		2298
1600	for (split /\n/, $spec) {	2299	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2300	my ($k, $v) = split /\s+/, $_, 2;
1602		2301
…		…
1606	$rmp	2305	$rmp
1607	}	2306	}
1608		2307
1609	sub prepare_random_map {	2308	sub prepare_random_map {
1610	my ($exit) = @_;	2309	my ($exit) = @_;
		2310
		2311	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2312
1612	# all this does is basically replace the /! path by	2313	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2314	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2315	# that depends on the exit object
1615		2316
1616	my $rmp = parse_random_map_params $exit->msg;	2317	my $rmp = parse_random_map_params $exit->msg;
1617		2318
1618	if ($exit->map) {	2319	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2320	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2321	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2322	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2323	$rmp->{origin_y} = $exit->y;
1623	}	2324	}
1624		2325
1625	$rmp->{random_seed} ||= $exit->random_seed;	2326	$rmp->{random_seed} ||= $exit->random_seed;
1626		2327
1627	my $data = cf::to_json $rmp;	2328	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2329	my $md5 = Digest::MD5::md5_hex $data;
		2330	my $meta = "$RANDOMDIR/$md5.meta";
1629		2331
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2332	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2333	aio_write $fh, 0, (length $data), $data, 0;
		2334	undef $fh;
		2335	aio_rename "$meta~", $meta;
1632		2336
1633	$exit->slaying ("?random/$md5");	2337	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2338	$exit->msg (undef);
1635	}	2339	}
1636	}	2340	}
…		…
1638	sub cf::object::player::enter_exit {	2342	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2343	my ($self, $exit) = @_;
1640		2344
1641	return unless $self->type == cf::PLAYER;	2345	return unless $self->type == cf::PLAYER;
1642		2346
		2347	if ($exit->slaying eq "/!") {
		2348	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2349	# the problem is that $exit might not survive long enough
		2350	# so it needs to be done right now, right here
		2351	cf::sync_job { prepare_random_map $exit };
		2352	}
		2353
		2354	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2355	my $hp = $exit->stats->hp;
		2356	my $sp = $exit->stats->sp;
		2357
1643	$self->enter_link;	2358	$self->enter_link;
1644		2359
1645	(cf::async {	2360	(async {
1646	$self->deactivate_recursive; # just to be sure	2361	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2362	unless (eval {
1648	prepare_random_map $exit	2363	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653		2364
1654	1;	2365	1;
1655	}) {	2366	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2367	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2368	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2369	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2370	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2371
1661	warn "ERROR in enter_exit: $@";	2372	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2373	$self->leave_link;
1663	}	2374	}
1664	})->prio (1);	2375	})->prio (1);
…		…
1677		2388
1678	sub cf::client::send_drawinfo {	2389	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2390	my ($self, $text, $flags) = @_;
1680		2391
1681	utf8::encode $text;	2392	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2393	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2394	}
1684		2395
		2396	=item $client->send_msg ($color, $type, $msg, [extra...])
		2397
		2398	Send a drawinfo or msg packet to the client, formatting the msg for the
		2399	client if neccessary. C<$type> should be a string identifying the type of
		2400	the message, with C<log> being the default. If C<$color> is negative, suppress
		2401	the message unless the client supports the msg packet.
		2402
		2403	=cut
		2404
		2405	sub cf::client::send_msg {
		2406	my ($self, $color, $type, $msg, @extra) = @_;
		2407
		2408	$msg = $self->pl->expand_cfpod ($msg);
		2409
		2410	if ($self->can_msg) {
		2411	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2412	} else {
		2413	# replace some tags by gcfclient-compatible ones
		2414	for ($msg) {
		2415	1 while
		2416	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2417	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2418	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2419	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2420	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2421	}
		2422
		2423	if ($color >= 0) {
		2424	if (0 && $msg =~ /\[/) {
		2425	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2426	} else {
		2427	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2428	$self->send_packet ("drawinfo $color $msg")
		2429	}
		2430	}
		2431	}
		2432	}
		2433
		2434	=item $client->ext_event ($type, %msg)
		2435
		2436	Sends an ext event to the client.
		2437
		2438	=cut
		2439
		2440	sub cf::client::ext_event($$%) {
		2441	my ($self, $type, %msg) = @_;
		2442
		2443	$msg{msgtype} = "event_$type";
		2444	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2445	}
1685		2446
1686	=item $success = $client->query ($flags, "text", \&cb)	2447	=item $success = $client->query ($flags, "text", \&cb)
1687		2448
1688	Queues a query to the client, calling the given callback with	2449	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2450	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2451	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2452
1692	Queries can fail, so check the return code. Or don't, as queries will become	2453	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2454	become reliable at some point in the future.
1694		2455
1695	=cut	2456	=cut
1696		2457
1697	sub cf::client::query {	2458	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2459	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2467	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2468	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2469
1709	$self->send_packet ($self->{query_queue}[0][0])	2470	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2471	if @{ $self->{query_queue} } == 1;
		2472
		2473	1
1711	}	2474	}
1712		2475
1713	cf::client->attach (	2476	cf::client->attach (
		2477	on_connect => sub {
		2478	my ($ns) = @_;
		2479
		2480	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2481	},
1714	on_reply => sub {	2482	on_reply => sub {
1715	my ($ns, $msg) = @_;	2483	my ($ns, $msg) = @_;
1716		2484
1717	# this weird shuffling is so that direct followup queries	2485	# this weird shuffling is so that direct followup queries
1718	# get handled first	2486	# get handled first
1719	my $queue = delete $ns->{query_queue}	2487	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2488	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2489
1722	(shift @$queue)->[1]->($msg);	2490	(shift @$queue)->[1]->($msg);
		2491	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2492
1724	push @{ $ns->{query_queue} }, @$queue;	2493	push @{ $ns->{query_queue} }, @$queue;
1725		2494
1726	if (@{ $ns->{query_queue} } == @$queue) {	2495	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2496	if (@$queue) {
…		…
1729	} else {	2498	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2499	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2500	}
1732	}	2501	}
1733	},	2502	},
		2503	on_exticmd => sub {
		2504	my ($ns, $buf) = @_;
		2505
		2506	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2507
		2508	if (ref $msg) {
		2509	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2510	if (my %reply = $cb->($ns, $msg)) {
		2511	$reply{msgid} = $msg->{msgid};
		2512	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2513	}
		2514	}
		2515	} else {
		2516	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2517	}
		2518
		2519	cf::override;
		2520	},
1734	);	2521	);
1735		2522
1736	=item $client->coro (\&cb)	2523	=item $client->async (\&cb)
1737		2524
1738	Create a new coroutine, running the specified callback. The coroutine will	2525	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2526	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2527	or loss of connection).
1741		2528
1742	=cut	2529	=cut
1743		2530
1744	sub cf::client::coro {	2531	sub cf::client::async {
1745	my ($self, $cb) = @_;	2532	my ($self, $cb) = @_;
1746		2533
1747	my $coro = &cf::async ($cb);	2534	my $coro = &Coro::async ($cb);
1748		2535
1749	$coro->on_destroy (sub {	2536	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2537	delete $self->{_coro}{$coro+0};
1751	});	2538	});
1752		2539
…		…
1785		2572
1786	# here we export the classes and methods available to script code	2573	# here we export the classes and methods available to script code
1787		2574
1788	=pod	2575	=pod
1789		2576
1790	The following fucntions and emthods are available within a safe environment:	2577	The following functions and methods are available within a safe environment:
1791		2578
1792	cf::object contr pay_amount pay_player map	2579	cf::object contr pay_amount pay_player map
1793	cf::object::player player	2580	cf::object::player player
1794	cf::player peaceful	2581	cf::player peaceful
1795	cf::map trigger	2582	cf::map trigger
…		…
1876	=back	2663	=back
1877		2664
1878	=cut	2665	=cut
1879		2666
1880	#############################################################################	2667	#############################################################################
		2668	# the server's init and main functions
1881		2669
1882	=head2 EXTENSION DATABASE SUPPORT	2670	sub load_facedata($) {
		2671	my ($path) = @_;
1883		2672
1884	Crossfire maintains a very simple database for extension use. It can	2673	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2674
1888	The parameter C<$family> should best start with the name of the extension	2675	my $facedata;
1889	using it, it should be unique.	2676	0 < aio_load $path, $facedata
		2677	or die "$path: $!";
1890		2678
1891	=over 4	2679	$facedata = Coro::Storable::thaw $facedata;
1892		2680
1893	=item $hashref = cf::db_get $family	2681	$facedata->{version} == 2
		2682	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2683
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key
1900
1901	Returns a single value from the database
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}	2684	{
		2685	my $faces = $facedata->{faceinfo};
1931		2686
1932	my $pid;	2687	while (my ($face, $info) = each %$faces) {
1933		2688	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1934	sub db_save() {	2689	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1935	waitpid $pid, 0 if $pid;	2690	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1936	if (0 == ($pid = fork)) {	2691	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1937	$DB->{_meta}{version} = 1;	2692	Coro::cede;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2693	}
1980	);
1981	}
1982		2694
1983	#############################################################################	2695	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2696	next unless $info->{smooth};
		2697	my $idx = cf::face::find $face
		2698	or next;
		2699	if (my $smooth = cf::face::find $info->{smooth}) {
		2700	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2701	} else {
		2702	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2703	}
		2704	Coro::cede;
		2705	}
		2706	}
		2707
		2708	{
		2709	my $anims = $facedata->{animinfo};
		2710
		2711	while (my ($anim, $info) = each %$anims) {
		2712	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2713	Coro::cede;
		2714	}
		2715
		2716	cf::anim::invalidate_all; # d'oh
		2717	}
		2718
		2719	1
		2720	}
		2721
		2722	sub reload_regions {
		2723	load_resource_file "$MAPDIR/regions"
		2724	or die "unable to load regions file\n";
		2725	}
		2726
		2727	sub reload_facedata {
		2728	load_facedata "$DATADIR/facedata"
		2729	or die "unable to load facedata\n";
		2730	}
		2731
		2732	sub reload_archetypes {
		2733	load_resource_file "$DATADIR/archetypes"
		2734	or die "unable to load archetypes\n";
		2735	#d# NEED to laod twice to resolve forward references
		2736	# this really needs to be done in an extra post-pass
		2737	# (which needs to be synchronous, so solve it differently)
		2738	load_resource_file "$DATADIR/archetypes"
		2739	or die "unable to load archetypes\n";
		2740	}
		2741
		2742	sub reload_treasures {
		2743	load_resource_file "$DATADIR/treasures"
		2744	or die "unable to load treasurelists\n";
		2745	}
		2746
		2747	sub reload_resources {
		2748	warn "reloading resource files...\n";
		2749
		2750	reload_regions;
		2751	reload_facedata;
		2752	#reload_archetypes;#d#
		2753	reload_archetypes;
		2754	reload_treasures;
		2755
		2756	warn "finished reloading resource files\n";
		2757	}
		2758
		2759	sub init {
		2760	reload_resources;
		2761	}
1985		2762
1986	sub cfg_load {	2763	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2764	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2765	or return;
1989		2766
1990	local $/;	2767	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2768	*CFG = YAML::Syck::Load <$fh>;
1992		2769
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2770	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2771
		2772	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2773	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2774
1995	if (exists $CFG{mlockall}) {	2775	if (exists $CFG{mlockall}) {
1996	eval {	2776	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2777	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2778	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2779	};
2000	warn $@ if $@;	2780	warn $@ if $@;
2001	}	2781	}
2002	}	2782	}
2003		2783
2004	sub main {	2784	sub main {
2005	# we must not ever block the main coroutine	2785	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2786	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2787	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2788	(async {
2009	Event::one_event;	2789	Event::one_event;
2010	})->();	2790	})->prio (Coro::PRIO_MAX);
2011	};	2791	};
2012		2792
2013	cfg_load;	2793	cfg_load;
2014	db_load;	2794	db_init;
2015	load_extensions;	2795	load_extensions;
		2796
		2797	$TICK_WATCHER->start;
2016	Event::loop;	2798	Event::loop;
2017	}	2799	}
2018		2800
2019	#############################################################################	2801	#############################################################################
2020	# initialisation	2802	# initialisation and cleanup
2021		2803
		2804	# install some emergency cleanup handlers
		2805	BEGIN {
		2806	for my $signal (qw(INT HUP TERM)) {
		2807	Event->signal (
		2808	reentrant => 0,
		2809	data => WF_AUTOCANCEL,
		2810	signal => $signal,
		2811	prio => 0,
		2812	cb => sub {
		2813	cf::cleanup "SIG$signal";
		2814	},
		2815	);
		2816	}
		2817	}
		2818
		2819	sub write_runtime {
		2820	my $runtime = "$LOCALDIR/runtime";
		2821
		2822	# first touch the runtime file to show we are still running:
		2823	# the fsync below can take a very very long time.
		2824
		2825	IO::AIO::aio_utime $runtime, undef, undef;
		2826
		2827	my $guard = cf::lock_acquire "write_runtime";
		2828
		2829	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2830	or return;
		2831
		2832	my $value = $cf::RUNTIME + 90 + 10;
		2833	# 10 is the runtime save interval, for a monotonic clock
		2834	# 60 allows for the watchdog to kill the server.
		2835
		2836	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2837	and return;
		2838
		2839	# always fsync - this file is important
		2840	aio_fsync $fh
		2841	and return;
		2842
		2843	# touch it again to show we are up-to-date
		2844	aio_utime $fh, undef, undef;
		2845
		2846	close $fh
		2847	or return;
		2848
		2849	aio_rename "$runtime~", $runtime
		2850	and return;
		2851
		2852	warn "runtime file written.\n";
		2853
		2854	1
		2855	}
		2856
		2857	sub emergency_save() {
		2858	my $freeze_guard = cf::freeze_mainloop;
		2859
		2860	warn "enter emergency perl save\n";
		2861
		2862	cf::sync_job {
		2863	# use a peculiar iteration method to avoid tripping on perl
		2864	# refcount bugs in for. also avoids problems with players
		2865	# and maps saved/destroyed asynchronously.
		2866	warn "begin emergency player save\n";
		2867	for my $login (keys %cf::PLAYER) {
		2868	my $pl = $cf::PLAYER{$login} or next;
		2869	$pl->valid or next;
		2870	$pl->save;
		2871	}
		2872	warn "end emergency player save\n";
		2873
		2874	warn "begin emergency map save\n";
		2875	for my $path (keys %cf::MAP) {
		2876	my $map = $cf::MAP{$path} or next;
		2877	$map->valid or next;
		2878	$map->save;
		2879	}
		2880	warn "end emergency map save\n";
		2881
		2882	warn "begin emergency database checkpoint\n";
		2883	BDB::db_env_txn_checkpoint $DB_ENV;
		2884	warn "end emergency database checkpoint\n";
		2885	};
		2886
		2887	warn "leave emergency perl save\n";
		2888	}
		2889
		2890	sub post_cleanup {
		2891	my ($make_core) = @_;
		2892
		2893	warn Carp::longmess "post_cleanup backtrace"
		2894	if $make_core;
		2895	}
		2896
2022	sub reload() {	2897	sub do_reload_perl() {
2023	# can/must only be called in main	2898	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2899	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2900	warn "can only reload from main coroutine";
2026	return;	2901	return;
2027	}	2902	}
2028		2903
2029	warn "reloading...";	2904	warn "reloading...";
2030		2905
2031	my $guard = freeze_mainloop;	2906	warn "entering sync_job";
		2907
		2908	cf::sync_job {
		2909	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2910	cf::emergency_save;
		2911	cf::write_runtime; # external watchdog should not bark
2033		2912
2034	eval {	2913	warn "syncing database to disk";
		2914	BDB::db_env_txn_checkpoint $DB_ENV;
		2915
2035	# if anything goes wrong in here, we should simply crash as we already saved	2916	# if anything goes wrong in here, we should simply crash as we already saved
2036		2917
2037	# cancel all watchers	2918	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2919	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2920	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2921	}
2041		2922
		2923	warn "flushing outstanding aio requests";
		2924	for (;;) {
		2925	BDB::flush;
		2926	IO::AIO::flush;
		2927	Coro::cede;
		2928	last unless IO::AIO::nreqs || BDB::nreqs;
		2929	warn "iterate...";
		2930	}
		2931
		2932	++$RELOAD;
		2933
2042	# cancel all extension coros	2934	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2935	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2936	%EXT_CORO = ();
2045		2937
2046	# unload all extensions	2938	warn "removing commands";
2047	for (@exts) {	2939	%COMMAND = ();
		2940
		2941	warn "removing ext/exti commands";
		2942	%EXTCMD = ();
		2943	%EXTICMD = ();
		2944
		2945	warn "unloading/nuking all extensions";
		2946	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2947	warn "... unloading $pkg";
2049	unload_extension $_;	2948
		2949	if (my $cb = $pkg->can ("unload")) {
		2950	eval {
		2951	$cb->($pkg);
		2952	1
		2953	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2954	}
2051		2955
		2956	warn "... nuking $pkg";
		2957	Symbol::delete_package $pkg;
		2958	}
		2959
2052	# unload all modules loaded from $LIBDIR	2960	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2961	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2962	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2963
2056	warn "removing <$k>";	2964	warn "... unloading $k";
2057	delete $INC{$k};	2965	delete $INC{$k};
2058		2966
2059	$k =~ s/\.pm$//;	2967	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2968	$k =~ s/\//::/g;
2061		2969
…		…
2064	}	2972	}
2065		2973
2066	Symbol::delete_package $k;	2974	Symbol::delete_package $k;
2067	}	2975	}
2068		2976
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2977	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2978	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2979	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2980
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2981	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2982	delete $INC{"cf.pm"};
		2983	delete $INC{"cf/pod.pm"};
2082		2984
2083	# don't, removes xs symbols, too,	2985	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2986	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2987	#Symbol::delete_package __PACKAGE__;
2086		2988
2087	# reload cf.pm	2989	warn "unload completed, starting to reload now";
		2990
2088	warn "reloading cf.pm";	2991	warn "reloading cf.pm";
2089	require cf;	2992	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2993	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2994
2092	# load config and database again	2995	warn "loading config and database again";
2093	cf::cfg_load;	2996	cf::cfg_load;
2094	cf::db_load;
2095		2997
2096	# load extensions
2097	warn "load extensions";	2998	warn "loading extensions";
2098	cf::load_extensions;	2999	cf::load_extensions;
2099		3000
2100	# reattach attachments to objects	3001	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3002	_global_reattach; # objects, sockets
2102	_global_reattach;	3003	warn "reattaching attachments to maps";
2103	};	3004	reattach $_ for values %MAP;
		3005	warn "reattaching attachments to players";
		3006	reattach $_ for values %PLAYER;
2104		3007
2105	if ($@) {	3008	warn "leaving sync_job";
		3009
		3010	1
		3011	} or do {
2106	warn $@;	3012	warn $@;
2107	warn "error while reloading, exiting.";	3013	warn "error while reloading, exiting.";
2108	exit 1;	3014	exit 1;
2109	}	3015	};
2110		3016
2111	warn "reloaded successfully";	3017	warn "reloaded";
2112	};	3018	};
2113		3019
2114	#############################################################################	3020	our $RELOAD_WATCHER; # used only during reload
2115		3021
2116	unless ($LINK_MAP) {	3022	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3023	# doing reload synchronously and two reloads happen back-to-back,
		3024	# coro crashes during coro_state_free->destroy here.
2118		3025
2119	$LINK_MAP->width (41);	3026	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3027	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	3028	after => 0,
		3029	data => WF_AUTOCANCEL,
2129	cb => sub {	3030	cb => sub {
2130	$_[0]->w->cancel;	3031	do_reload_perl;
2131		3032	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	3033	},
2150		3034	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3035	}
2156
2157	register "<global>", __PACKAGE__;
2158		3036
2159	register_command "reload" => sub {	3037	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3038	my ($who, $arg) = @_;
2161		3039
2162	if ($who->flag (FLAG_WIZ)) {	3040	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3041	$who->message ("reloading server.");
		3042	async { reload_perl };
2166	}	3043	}
2167	};	3044	};
2168		3045
2169	unshift @INC, $LIBDIR;	3046	unshift @INC, $LIBDIR;
2170		3047
		3048	my $bug_warning = 0;
		3049
		3050	our @WAIT_FOR_TICK;
		3051	our @WAIT_FOR_TICK_BEGIN;
		3052
		3053	sub wait_for_tick {
		3054	return unless $TICK_WATCHER->is_active;
		3055	return if $Coro::current == $Coro::main;
		3056
		3057	my $signal = new Coro::Signal;
		3058	push @WAIT_FOR_TICK, $signal;
		3059	$signal->wait;
		3060	}
		3061
		3062	sub wait_for_tick_begin {
		3063	return unless $TICK_WATCHER->is_active;
		3064	return if $Coro::current == $Coro::main;
		3065
		3066	my $signal = new Coro::Signal;
		3067	push @WAIT_FOR_TICK_BEGIN, $signal;
		3068	$signal->wait;
		3069	}
		3070
		3071	my $min = 1e6;#d#
		3072	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3073	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3074	reentrant => 0,
		3075	parked => 1,
2173	prio => 0,	3076	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3077	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3078	data => WF_AUTOCANCEL,
2176	cb => sub {	3079	cb => sub {
		3080	if ($Coro::current != $Coro::main) {
		3081	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3082	unless ++$bug_warning > 10;
		3083	return;
		3084	}
		3085
		3086	$NOW = $tick_start = Event::time;
		3087
2177	cf::server_tick; # one server iteration	3088	cf::server_tick; # one server iteration
		3089
		3090	0 && sync_job {#d#
		3091	for(1..10) {
		3092	my $t = Event::time;
		3093	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3094	or die;
		3095
		3096	$map->width (50);
		3097	$map->height (50);
		3098	$map->alloc;
		3099	$map->_load_objects ("/tmp/x.map", 1);
		3100	my $t = Event::time - $t;
		3101
		3102	#next unless $t < 0.0013;#d#
		3103	if ($t < $min) {
		3104	$min = $t;
		3105	}
		3106	$avg = $avg * 0.99 + $t * 0.01;
		3107	}
		3108	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3109	exit 0;
		3110	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3111	};
		3112
2178	$RUNTIME += $TICK;	3113	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	3114	$NEXT_TICK += $TICK;
2180		3115
		3116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3117	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3118	Coro::async_pool {
		3119	write_runtime
		3120	or warn "ERROR: unable to write runtime file: $!";
		3121	};
		3122	}
		3123
		3124	# my $AFTER = Event::time;
		3125	# warn $AFTER - $NOW;#d#
		3126
		3127	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3128	$sig->send;
		3129	}
		3130	while (my $sig = shift @WAIT_FOR_TICK) {
		3131	$sig->send;
		3132	}
		3133
		3134	$NOW = Event::time;
		3135
2181	# if we are delayed by four ticks or more, skip them all	3136	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3137	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2183		3138
2184	$TICK_WATCHER->at ($NEXT_TICK);	3139	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	3140	$TICK_WATCHER->start;
		3141
		3142	$LOAD = ($NOW - $tick_start) / $TICK;
		3143	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3144
		3145	_post_tick;
		3146
		3147
2186	},	3148	},
2187	);	3149	);
2188		3150
		3151	{
2189	IO::AIO::max_poll_time $TICK * 0.2;	3152	BDB::max_poll_time $TICK * 0.1;
2190		3153	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	3154	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	3155	fd => BDB::poll_fileno,
2193	poll => 'r',	3156	poll => 'r',
2194	prio => 5,	3157	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	3158	data => WF_AUTOCANCEL,
2201	after => 0,	3159	cb => \&BDB::poll_cb,
2202	interval => 10,	3160	);
2203	cb => sub {	3161	BDB::min_parallel 8;
2204	(Coro::unblock_sub {	3162
2205	write_runtime	3163	BDB::set_sync_prepare {
2206	or warn "ERROR: unable to write runtime file: $!";	3164	my $status;
		3165	my $current = $Coro::current;
		3166	(
		3167	sub {
		3168	$status = $!;
		3169	$current->ready; undef $current;
		3170	},
		3171	sub {
		3172	Coro::schedule while defined $current;
		3173	$! = $status;
		3174	},
		3175	)
		3176	};
		3177
		3178	unless ($DB_ENV) {
		3179	$DB_ENV = BDB::db_env_create;
		3180
		3181	cf::sync_job {
		3182	eval {
		3183	BDB::db_env_open
		3184	$DB_ENV,
		3185	$BDBDIR,
		3186	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3187	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3188	0666;
		3189
		3190	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3191
		3192	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3193	$DB_ENV->set_lk_detect;
		3194	};
		3195
		3196	cf::cleanup "db_env_open(db): $@" if $@;
2207	})->();	3197	};
2208	},	3198	}
2209	);	3199	}
		3200
		3201	{
		3202	IO::AIO::min_parallel 8;
		3203
		3204	undef $Coro::AIO::WATCHER;
		3205	IO::AIO::max_poll_time $TICK * 0.1;
		3206	$AIO_POLL_WATCHER = Event->io (
		3207	reentrant => 0,
		3208	data => WF_AUTOCANCEL,
		3209	fd => IO::AIO::poll_fileno,
		3210	poll => 'r',
		3211	prio => 6,
		3212	cb => \&IO::AIO::poll_cb,
		3213	);
		3214	}
		3215
		3216	my $_log_backtrace;
		3217
		3218	sub _log_backtrace {
		3219	my ($msg, @addr) = @_;
		3220
		3221	$msg =~ s/\n//;
		3222
		3223	# limit the # of concurrent backtraces
		3224	if ($_log_backtrace < 2) {
		3225	++$_log_backtrace;
		3226	async {
		3227	my @bt = fork_call {
		3228	@addr = map { sprintf "%x", $_ } @addr;
		3229	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3230	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3231	or die "addr2line: $!";
		3232
		3233	my @funcs;
		3234	my @res = <$fh>;
		3235	chomp for @res;
		3236	while (@res) {
		3237	my ($func, $line) = splice @res, 0, 2, ();
		3238	push @funcs, "[$func] $line";
		3239	}
		3240
		3241	@funcs
		3242	};
		3243
		3244	LOG llevInfo, "[ABT] $msg\n";
		3245	LOG llevInfo, "[ABT] $_\n" for @bt;
		3246	--$_log_backtrace;
		3247	};
		3248	} else {
		3249	LOG llevInfo, "[ABT] $msg\n";
		3250	LOG llevInfo, "[ABT] [suppressed]\n";
		3251	}
		3252	}
		3253
		3254	# load additional modules
		3255	use cf::pod;
2210		3256
2211	END { cf::emergency_save }	3257	END { cf::emergency_save }
2212		3258
2213	1	3259	1
2214		3260

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