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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.137 by root, Fri Jan 5 10:23:05 2007 UTC vs.
Revision 1.295 by root, Wed Jul 4 05:08:15 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	s/\s+\n/\n/g; # ws line-ends
		1418	s/\n\n+/\n/g; # double lines
		1419	s/^\n+//; # beginning lines
		1420	s/\n+$//; # ending lines
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
		1430	=item $player->ext_reply ($msgid, %msg)
		1431
		1432	Sends an ext reply to the player.
		1433
		1434	=cut
		1435
		1436	sub ext_reply($$%) {
		1437	my ($self, $id, %msg) = @_;
		1438
		1439	$msg{msgid} = $id;
		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1441	}
		1442
		1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
962	my ($path) = @_;	1470	my ($path) = @_;
963		1471
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1472	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1473
970	warn "loading '$path' into '$pkg'\n";	1474	for my $region (list) {
971		1475	if ($region->match && $path =~ $region->match) {
972	open my $fh, "<:utf8", $path	1476	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1477	if $region->specificity > $specificity;
974		1478	}
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	# }	1479	}
1004		1480
1005	# remove commands	1481	$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	}	1482	}
1111		1483
1112	=back	1484	=back
1113
1114		1485
1115	=head3 cf::map	1486	=head3 cf::map
1116		1487
1117	=over 4	1488	=over 4
1118		1489
…		…
1121	package cf::map;	1492	package cf::map;
1122		1493
1123	use Fcntl;	1494	use Fcntl;
1124	use Coro::AIO;	1495	use Coro::AIO;
1125		1496
		1497	use overload
		1498	'""' => \&as_string,
		1499	fallback => 1;
		1500
1126	our $MAX_RESET = 3600;	1501	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1502	our $DEFAULT_RESET = 3000;
1128		1503
1129	sub generate_random_map {	1504	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1505	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1506	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1507	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1508	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1509	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1510	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1511	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1512	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1513	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1514	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1515	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1516	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1517	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1518	(cf::region::find $rmp->{region}), $rmp->{custom}
		1519	)
		1520	}
		1521
		1522	=item cf::map->register ($regex, $prio)
		1523
		1524	Register a handler for the map path matching the given regex at the
		1525	givne priority (higher is better, built-in handlers have priority 0, the
		1526	default).
		1527
		1528	=cut
		1529
		1530	sub register {
		1531	my (undef, $regex, $prio) = @_;
		1532	my $pkg = caller;
		1533
		1534	no strict;
		1535	push @{"$pkg\::ISA"}, __PACKAGE__;
		1536
		1537	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1538	}
		1539
		1540	# also paths starting with '/'
		1541	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1542
		1543	sub thawer_merge {
		1544	my ($self, $merge) = @_;
		1545
		1546	# we have to keep some variables in memory intact
		1547	local $self->{path};
		1548	local $self->{load_path};
		1549
		1550	$self->SUPER::thawer_merge ($merge);
		1551	}
		1552
		1553	sub normalise {
		1554	my ($path, $base) = @_;
		1555
		1556	$path = "$path"; # make sure its a string
		1557
		1558	$path =~ s/\.map$//;
		1559
		1560	# map plan:
		1561	#
		1562	# /! non-realised random map exit (special hack!)
		1563	# {... are special paths that are not being touched
		1564	# ?xxx/... are special absolute paths
		1565	# ?random/... random maps
		1566	# /... normal maps
		1567	# ~user/... per-player map of a specific user
		1568
		1569	$path =~ s/$PATH_SEP/\//go;
		1570
		1571	# treat it as relative path if it starts with
		1572	# something that looks reasonable
		1573	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1574	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1575
		1576	$base =~ s{[^/]+/?$}{};
		1577	$path = "$base/$path";
		1578	}
		1579
		1580	for ($path) {
		1581	redo if s{//}{/};
		1582	redo if s{/\.?/}{/};
		1583	redo if s{/[^/]+/\.\./}{/};
		1584	}
		1585
		1586	$path
		1587	}
		1588
		1589	sub new_from_path {
		1590	my (undef, $path, $base) = @_;
		1591
		1592	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1593
		1594	$path = normalise $path, $base;
		1595
		1596	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1597	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1598	my $self = bless cf::map::new, $pkg;
		1599	$self->{path} = $path; $self->path ($path);
		1600	$self->init; # pass $1 etc.
		1601	return $self;
		1602	}
		1603	}
		1604
		1605	Carp::carp "unable to resolve path '$path' (base '$base').";
		1606	()
		1607	}
		1608
		1609	sub init {
		1610	my ($self) = @_;
		1611
		1612	$self
		1613	}
		1614
		1615	sub as_string {
		1616	my ($self) = @_;
		1617
		1618	"$self->{path}"
		1619	}
		1620
		1621	# the displayed name, this is a one way mapping
		1622	sub visible_name {
		1623	&as_string
		1624	}
		1625
		1626	# the original (read-only) location
		1627	sub load_path {
		1628	my ($self) = @_;
		1629
		1630	"$MAPDIR/$self->{path}.map"
		1631	}
		1632
		1633	# the temporary/swap location
		1634	sub save_path {
		1635	my ($self) = @_;
		1636
		1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1638	"$TMPDIR/$path.map"
		1639	}
		1640
		1641	# the unique path, undef == no special unique path
		1642	sub uniq_path {
		1643	my ($self) = @_;
		1644
		1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1646	"$UNIQUEDIR/$path"
1146	}	1647	}
1147		1648
1148	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1149	# all maps in C++...	1650	# all maps in C++...
1150	sub change_all_map_light {	1651	sub change_all_map_light {
…		…
1152		1653
1153	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
1155	}	1656	}
1156		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
		1664	}
		1665
		1666	sub unlink_save {
		1667	my ($self) = @_;
		1668
		1669	utf8::encode (my $save = $self->save_path);
		1670	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1671	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1672	}
		1673
1157	sub try_load_header($) {	1674	sub load_header_from($) {
1158	my ($path) = @_;	1675	my ($self, $path) = @_;
1159		1676
1160	utf8::encode $path;	1677	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1678	#aio_open $path, O_RDONLY, 0
		1679	# or return;
		1680
		1681	$self->_load_header ($path)
1162	or return;	1682	or return;
1163		1683
1164	my $map = cf::map::new	1684	$self->{load_path} = $path;
		1685
		1686	1
		1687	}
		1688
		1689	sub load_header_orig {
		1690	my ($self) = @_;
		1691
		1692	$self->load_header_from ($self->load_path)
		1693	}
		1694
		1695	sub load_header_temp {
		1696	my ($self) = @_;
		1697
		1698	$self->load_header_from ($self->save_path)
		1699	}
		1700
		1701	sub prepare_temp {
		1702	my ($self) = @_;
		1703
		1704	$self->last_access ((delete $self->{last_access})
		1705	|| $cf::RUNTIME); #d#
		1706	# safety
		1707	$self->{instantiate_time} = $cf::RUNTIME
		1708	if $self->{instantiate_time} > $cf::RUNTIME;
		1709	}
		1710
		1711	sub prepare_orig {
		1712	my ($self) = @_;
		1713
		1714	$self->{load_original} = 1;
		1715	$self->{instantiate_time} = $cf::RUNTIME;
		1716	$self->last_access ($cf::RUNTIME);
		1717	$self->instantiate;
		1718	}
		1719
		1720	sub load_header {
		1721	my ($self) = @_;
		1722
		1723	if ($self->load_header_temp) {
		1724	$self->prepare_temp;
		1725	} else {
		1726	$self->load_header_orig
1165	or return;	1727	or return;
		1728	$self->prepare_orig;
		1729	}
1166		1730
1167	# for better error messages only, will be overwritten	1731	$self->{deny_reset} = 1
1168	$map->path ($path);	1732	if $self->no_reset;
1169		1733
1170	$map->load_header ($path)	1734	$self->default_region (cf::region::find_by_path $self->{path})
1171	or return;	1735	unless $self->default_region;
1172		1736
1173	$map->{load_path} = $path;	1737	1
1174
1175	$map
1176	}	1738	}
1177		1739
1178	sub find;	1740	sub find;
1179	sub find {	1741	sub find {
1180	my ($path, $origin) = @_;	1742	my ($path, $origin) = @_;
1181		1743
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1744	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1745
1187	cf::lock_wait "map_find:$key";	1746	cf::lock_wait "map_find:$path";
1188		1747
1189	$cf::MAP{$key} || do {	1748	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1749	my $guard = cf::lock_acquire "map_find:$path";
1191		1750	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;	1751	or return;
1211		1752
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;	1753	$map->{last_save} = $cf::RUNTIME;
1224		1754
1225	Coro::cede;	1755	$map->load_header
		1756	or return;
1226		1757
1227	if ($map->should_reset) {	1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1759	# doing this can freeze the server in a sync job, obviously
		1760	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1761	$map->reset;
1229	undef $guard;	1762	undef $guard;
1230	$map = find $path	1763	return find $path;
1231	or return;
1232	}	1764	}
1233		1765
1234	$cf::MAP{$key} = $map	1766	$cf::MAP{$path} = $map
1235	}	1767	}
1236	}	1768	}
		1769
		1770	sub pre_load { }
		1771	sub post_load { }
1237		1772
1238	sub load {	1773	sub load {
1239	my ($self) = @_;	1774	my ($self) = @_;
1240		1775
		1776	local $self->{deny_reset} = 1; # loading can take a long time
		1777
1241	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1781	my $guard = cf::lock_acquire "map_load:$path";
1243		1782
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1784
1246	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1247		1786
1248	$self->alloc;	1787	$self->alloc;
		1788
		1789	$self->pre_load;
		1790	Coro::cede;
		1791
1249	$self->load_objects ($self->{load_path}, 1)	1792	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1793	or return;
1251		1794
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1796	if delete $self->{load_original};
1254		1797
1255	if (my $uniq = $path->uniq_path) {	1798	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1799	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1800	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1801	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1802	$self->_load_objects ($uniq, 0);
1260	}	1803	}
1261	}	1804	}
1262		1805
1263	Coro::cede;	1806	Coro::cede;
1264
1265	# now do the right thing for maps	1807	# now do the right thing for maps
1266	$self->link_multipart_objects;	1808	$self->link_multipart_objects;
1267
1268	if ($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)	1809	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1810	unless $self->difficulty;
		1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1278	$self->activate;	1820	$self->activate;
1279	}	1821	}
1280		1822
1281	Coro::cede;
1282
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1823	$self->in_memory (cf::MAP_IN_MEMORY);
		1824	}
		1825
		1826	$self->post_load;
		1827	}
		1828
		1829	sub customise_for {
		1830	my ($self, $ob) = @_;
		1831
		1832	return find "~" . $ob->name . "/" . $self->{path}
		1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
		1837
		1838	$self
		1839	}
		1840
		1841	# find and load all maps in the 3x3 area around a map
		1842	sub load_diag {
		1843	my ($map) = @_;
		1844
		1845	my @diag; # diagonal neighbours
		1846
		1847	for (0 .. 3) {
		1848	my $neigh = $map->tile_path ($_)
		1849	or next;
		1850	$neigh = find $neigh, $map
		1851	or next;
		1852	$neigh->load;
		1853
		1854	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1855	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1856	}
		1857
		1858	for (@diag) {
		1859	my $neigh = find @$_
		1860	or next;
		1861	$neigh->load;
		1862	}
1284	}	1863	}
1285		1864
1286	sub find_sync {	1865	sub find_sync {
1287	my ($path, $origin) = @_;	1866	my ($path, $origin) = @_;
1288		1867
1289	cf::sync_job { cf::map::find $path, $origin }	1868	cf::sync_job { find $path, $origin }
1290	}	1869	}
1291		1870
1292	sub do_load_sync {	1871	sub do_load_sync {
1293	my ($map) = @_;	1872	my ($map) = @_;
1294		1873
1295	cf::sync_job { $map->load };	1874	cf::sync_job { $map->load };
1296	}	1875	}
1297		1876
		1877	our %MAP_PREFETCH;
		1878	our $MAP_PREFETCHER = undef;
		1879
		1880	sub find_async {
		1881	my ($path, $origin) = @_;
		1882
		1883	$path = normalise $path, $origin && $origin->{path};
		1884
		1885	if (my $map = $cf::MAP{$path}) {
		1886	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1887	}
		1888
		1889	undef $MAP_PREFETCH{$path};
		1890	$MAP_PREFETCHER ||= cf::async {
		1891	while (%MAP_PREFETCH) {
		1892	for my $path (keys %MAP_PREFETCH) {
		1893	my $map = find $path
		1894	or next;
		1895	$map->load;
		1896
		1897	delete $MAP_PREFETCH{$path};
		1898	}
		1899	}
		1900	undef $MAP_PREFETCHER;
		1901	};
		1902	$MAP_PREFETCHER->prio (6);
		1903
		1904	()
		1905	}
		1906
1298	sub save {	1907	sub save {
1299	my ($self) = @_;	1908	my ($self) = @_;
1300		1909
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	1910	my $lock = cf::lock_acquire "map_data:" . $self->path;
1302		1911
1303	$self->{last_save} = $cf::RUNTIME;	1912	$self->{last_save} = $cf::RUNTIME;
1304		1913
1305	return unless $self->dirty;	1914	return unless $self->dirty;
1306		1915
1307	my $save = $self->{path}->save_path; utf8::encode $save;	1916	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1917	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		1918
1310	$self->{load_path} = $save;	1919	$self->{load_path} = $save;
1311		1920
1312	return if $self->{deny_save};	1921	return if $self->{deny_save};
1313		1922
1314	local $self->{last_access} = $self->last_access;#d#	1923	local $self->{last_access} = $self->last_access;#d#
1315		1924
		1925	cf::async {
		1926	$_->contr->save for $self->players;
		1927	};
		1928
1316	if ($uniq) {	1929	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1930	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1931	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1932	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1933	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1934	}
1322	}	1935	}
1323		1936
1324	sub swap_out {	1937	sub swap_out {
1325	my ($self) = @_;	1938	my ($self) = @_;
…		…
1339		1952
1340	sub reset_at {	1953	sub reset_at {
1341	my ($self) = @_;	1954	my ($self) = @_;
1342		1955
1343	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1346		1958
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		1961
…		…
1354	my ($self) = @_;	1966	my ($self) = @_;
1355		1967
1356	$self->reset_at <= $cf::RUNTIME	1968	$self->reset_at <= $cf::RUNTIME
1357	}	1969	}
1358		1970
1359	sub unlink_save {
1360	my ($self) = @_;
1361
1362	utf8::encode (my $save = $self->{path}->save_path);
1363	aioreq_pri 3; IO::AIO::aio_unlink $save;
1364	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1365	}
1366
1367	sub rename {
1368	my ($self, $new_path) = @_;
1369
1370	$self->unlink_save;
1371
1372	delete $cf::MAP{$self->path};
1373	$self->{path} = new cf::path $new_path;
1374	$self->path ($self->{path}->as_string);
1375	$cf::MAP{$self->path} = $self;
1376
1377	$self->save;
1378	}
1379
1380	sub reset {	1971	sub reset {
1381	my ($self) = @_;	1972	my ($self) = @_;
1382		1973
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		1975
1385	return if $self->players;	1976	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		1977
1388	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
		1979
		1980	$self->in_memory (cf::MAP_SWAPPED);
		1981
		1982	# need to save uniques path
		1983	unless ($self->{deny_save}) {
		1984	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1985
		1986	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1987	if $uniq;
		1988	}
1389		1989
1390	delete $cf::MAP{$self->path};	1990	delete $cf::MAP{$self->path};
		1991
		1992	$self->clear;
1391		1993
1392	$_->clear_links_to ($self) for values %cf::MAP;	1994	$_->clear_links_to ($self) for values %cf::MAP;
1393		1995
1394	$self->unlink_save;	1996	$self->unlink_save;
1395	$self->destroy;	1997	$self->destroy;
…		…
1398	my $nuke_counter = "aaaa";	2000	my $nuke_counter = "aaaa";
1399		2001
1400	sub nuke {	2002	sub nuke {
1401	my ($self) = @_;	2003	my ($self) = @_;
1402		2004
		2005	delete $cf::MAP{$self->path};
		2006
		2007	$self->unlink_save;
		2008
		2009	bless $self, "cf::map";
		2010	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2011	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2012	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2013	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2014
		2015	$cf::MAP{$self->path} = $self;
		2016
1406	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1407	}	2018	}
1408		2019
1409	sub customise_for {	2020	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2021
1412	if ($map->per_player) {	2022	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
1414	}	2028	[
1415		2029	map {
1416	$map	2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
1417	}	2036	}
1418		2037
1419	sub emergency_save {	2038	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2039
1422	warn "enter emergency map save\n";	2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
1423		2042
1424	cf::sync_job {	2043	=cut
1425	warn "begin emergency map save\n";
1426	$_->save for values %cf::MAP;
1427	};
1428		2044
1429	warn "end emergency map save\n";	2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item cf::map::unique_maps
		2057
		2058	Returns an arrayref of paths of all shared maps that have
		2059	instantiated unique items. May block.
		2060
		2061	=cut
		2062
		2063	sub unique_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $UNIQUEDIR or [] }
		2071	]
1430	}	2072	}
1431		2073
1432	package cf;	2074	package cf;
1433		2075
1434	=back	2076	=back
1435		2077
		2078	=head3 cf::object
		2079
		2080	=cut
		2081
		2082	package cf::object;
		2083
		2084	=over 4
		2085
		2086	=item $ob->inv_recursive
		2087
		2088	Returns the inventory of the object _and_ their inventories, recursively.
		2089
		2090	=cut
		2091
		2092	sub inv_recursive_;
		2093	sub inv_recursive_ {
		2094	map { $_, inv_recursive_ $_->inv } @_
		2095	}
		2096
		2097	sub inv_recursive {
		2098	inv_recursive_ inv $_[0]
		2099	}
		2100
		2101	package cf;
		2102
		2103	=back
1436		2104
1437	=head3 cf::object::player	2105	=head3 cf::object::player
1438		2106
1439	=over 4	2107	=over 4
1440		2108
…		…
1454		2122
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2124
1457	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1459	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1462	}	2144	}
1463	}	2145	}
1464		2146
1465	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1466		2148
…		…
1480		2162
1481	=item $player_object->enter_link	2163	=item $player_object->enter_link
1482		2164
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2165	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2166
1485	The player should be reaosnably safe there for short amounts of time. You	2167	The player should be reasonably safe there for short amounts of time. You
1486	I<MUST> call C<leave_link> as soon as possible, though.	2168	I<MUST> call C<leave_link> as soon as possible, though.
1487		2169
		2170	Will never block.
		2171
1488	=item $player_object->leave_link ($map, $x, $y)	2172	=item $player_object->leave_link ($map, $x, $y)
1489		2173
1490	Moves the player out of the specila link map onto the given map. If the	2174	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2175	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2176	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2177	fails, to the emergency map position.
1494		2178
1495	Might block.	2179	Might block.
1496		2180
1497	=cut	2181	=cut
		2182
		2183	sub link_map {
		2184	unless ($LINK_MAP) {
		2185	$LINK_MAP = cf::map::find "{link}"
		2186	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2187	$LINK_MAP->load;
		2188	}
		2189
		2190	$LINK_MAP
		2191	}
1498		2192
1499	sub cf::object::player::enter_link {	2193	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2194	my ($self) = @_;
1501		2195
1502	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1503		2197
1504	return if $self->map == $LINK_MAP;	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2199
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1508		2202
1509	$self->enter_map ($LINK_MAP, 20, 20);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2204	}
1511		2205
1512	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1514		2210
1515	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1516		2212
1517	unless ($map) {	2213	unless ($map) {
1518	# restore original map position	2214	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	2228	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2229	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2230	if $x <=0 && $y <= 0;
1535		2231
1536	$map->load;	2232	$map->load;
		2233	$map->load_diag;
1537		2234
		2235	return unless $self->contr->active;
1538	$self->activate_recursive;	2236	$self->activate_recursive;
		2237
		2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1540	}	2240	}
1541		2241
1542	cf::player->attach (
1543	on_logout => sub {
1544	my ($pl) = @_;
1545
1546	# abort map switching before logout
1547	if ($pl->ob->{_link_pos}) {
1548	cf::sync_job {
1549	$pl->ob->leave_link
1550	};
1551	}
1552	},
1553	on_login => sub {
1554	my ($pl) = @_;
1555
1556	# try to abort aborted map switching on player login :)
1557	# should happen only on crashes
1558	if ($pl->ob->{_link_pos}) {
1559	$pl->ob->enter_link;
1560	cf::async {
1561	# we need this sleep as the login has a concurrent enter_exit running
1562	# and this sleep increases chances of the player not ending up in scorn
1563	Coro::Timer::sleep 1;
1564	$pl->ob->leave_link;
1565	};
1566	}
1567	},
1568	);
1569
1570	=item $player_object->goto ($path, $x, $y)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1571		2243
		2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
		2248
1572	=cut	2249	=cut
		2250
		2251	our $GOTOGEN;
1573		2252
1574	sub cf::object::player::goto {	2253	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2258
1577	$self->enter_link;	2259	$self->enter_link;
1578		2260
1579	(cf::async {	2261	(async {
1580	$path = new cf::path $path;	2262	my $map = eval {
1581
1582	my $map = cf::map::find $path->as_string;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
1584		2267	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2268	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
1589		2271
		2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
		2278	}
		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1591	})->prio (1);	2284	})->prio (1);
1592	}	2285	}
1593		2286
1594	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1595		2288
…		…
1597		2290
1598	sub parse_random_map_params {	2291	sub parse_random_map_params {
1599	my ($spec) = @_;	2292	my ($spec) = @_;
1600		2293
1601	my $rmp = { # defaults	2294	my $rmp = { # defaults
1602	xsize => 10,	2295	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2296	ysize => (cf::rndm 15, 40),
		2297	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2298	#layout => string,
1604	};	2299	};
1605		2300
1606	for (split /\n/, $spec) {	2301	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2302	my ($k, $v) = split /\s+/, $_, 2;
1608		2303
…		…
1612	$rmp	2307	$rmp
1613	}	2308	}
1614		2309
1615	sub prepare_random_map {	2310	sub prepare_random_map {
1616	my ($exit) = @_;	2311	my ($exit) = @_;
		2312
		2313	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2314
1618	# all this does is basically replace the /! path by	2315	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2316	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2317	# that depends on the exit object
1621		2318
1622	my $rmp = parse_random_map_params $exit->msg;	2319	my $rmp = parse_random_map_params $exit->msg;
1623		2320
1624	if ($exit->map) {	2321	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2322	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2323	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2324	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2325	$rmp->{origin_y} = $exit->y;
1629	}	2326	}
1630		2327
1631	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1632		2329
1633	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
		2332	my $meta = "$RANDOMDIR/$md5.meta";
1635		2333
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
		2336	undef $fh;
		2337	aio_rename "$meta~", $meta;
1638		2338
1639	$exit->slaying ("?random/$md5");	2339	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2340	$exit->msg (undef);
1641	}	2341	}
1642	}	2342	}
…		…
1644	sub cf::object::player::enter_exit {	2344	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2345	my ($self, $exit) = @_;
1646		2346
1647	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
1648		2348
		2349	if ($exit->slaying eq "/!") {
		2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
		2353	cf::sync_job { prepare_random_map $exit };
		2354	}
		2355
		2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2357	my $hp = $exit->stats->hp;
		2358	my $sp = $exit->stats->sp;
		2359
1649	$self->enter_link;	2360	$self->enter_link;
1650		2361
1651	(cf::async {	2362	(async {
1652	$self->deactivate_recursive; # just to be sure	2363	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2364	unless (eval {
1654	prepare_random_map $exit	2365	$self->goto ($slaying, $hp, $sp);
1655	if $exit->slaying eq "/!";
1656
1657	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1658	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1659		2366
1660	1;	2367	1;
1661	}) {	2368	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2369	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	2370	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2371	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2372	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2373
1667	warn "ERROR in enter_exit: $@";	2374	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2375	$self->leave_link;
1669	}	2376	}
1670	})->prio (1);	2377	})->prio (1);
…		…
1683		2390
1684	sub cf::client::send_drawinfo {	2391	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2392	my ($self, $text, $flags) = @_;
1686		2393
1687	utf8::encode $text;	2394	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2395	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2396	}
1690		2397
		2398	=item $client->send_msg ($color, $type, $msg, [extra...])
		2399
		2400	Send a drawinfo or msg packet to the client, formatting the msg for the
		2401	client if neccessary. C<$type> should be a string identifying the type of
		2402	the message, with C<log> being the default. If C<$color> is negative, suppress
		2403	the message unless the client supports the msg packet.
		2404
		2405	=cut
		2406
		2407	sub cf::client::send_msg {
		2408	my ($self, $color, $type, $msg, @extra) = @_;
		2409
		2410	$msg = $self->pl->expand_cfpod ($msg);
		2411
		2412	return unless @extra || length $msg;
		2413
		2414	if ($self->can_msg) {
		2415	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2416	} else {
		2417	# replace some tags by gcfclient-compatible ones
		2418	for ($msg) {
		2419	1 while
		2420	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2421	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2422	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2423	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2424	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2425	}
		2426
		2427	if ($color >= 0) {
		2428	if (0 && $msg =~ /\[/) {
		2429	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2430	} else {
		2431	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2432	$self->send_packet ("drawinfo $color $msg")
		2433	}
		2434	}
		2435	}
		2436	}
		2437
		2438	=item $client->ext_event ($type, %msg)
		2439
		2440	Sends an ext event to the client.
		2441
		2442	=cut
		2443
		2444	sub cf::client::ext_event($$%) {
		2445	my ($self, $type, %msg) = @_;
		2446
		2447	$msg{msgtype} = "event_$type";
		2448	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2449	}
1691		2450
1692	=item $success = $client->query ($flags, "text", \&cb)	2451	=item $success = $client->query ($flags, "text", \&cb)
1693		2452
1694	Queues a query to the client, calling the given callback with	2453	Queues a query to the client, calling the given callback with
1695	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2454	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1696	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2455	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		2456
1698	Queries can fail, so check the return code. Or don't, as queries will become	2457	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	2458	become reliable at some point in the future.
1700		2459
1701	=cut	2460	=cut
1702		2461
1703	sub cf::client::query {	2462	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	2463	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	2471	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2472	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		2473
1715	$self->send_packet ($self->{query_queue}[0][0])	2474	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	2475	if @{ $self->{query_queue} } == 1;
		2476
		2477	1
1717	}	2478	}
1718		2479
1719	cf::client->attach (	2480	cf::client->attach (
		2481	on_connect => sub {
		2482	my ($ns) = @_;
		2483
		2484	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2485	},
1720	on_reply => sub {	2486	on_reply => sub {
1721	my ($ns, $msg) = @_;	2487	my ($ns, $msg) = @_;
1722		2488
1723	# this weird shuffling is so that direct followup queries	2489	# this weird shuffling is so that direct followup queries
1724	# get handled first	2490	# get handled first
1725	my $queue = delete $ns->{query_queue}	2491	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2492	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2493
1728	(shift @$queue)->[1]->($msg);	2494	(shift @$queue)->[1]->($msg);
		2495	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2496
1730	push @{ $ns->{query_queue} }, @$queue;	2497	push @{ $ns->{query_queue} }, @$queue;
1731		2498
1732	if (@{ $ns->{query_queue} } == @$queue) {	2499	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2500	if (@$queue) {
…		…
1735	} else {	2502	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2503	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	2504	}
1738	}	2505	}
1739	},	2506	},
		2507	on_exticmd => sub {
		2508	my ($ns, $buf) = @_;
		2509
		2510	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2511
		2512	if (ref $msg) {
		2513	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2514	if (my %reply = $cb->($ns, $msg)) {
		2515	$reply{msgid} = $msg->{msgid};
		2516	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2517	}
		2518	}
		2519	} else {
		2520	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2521	}
		2522
		2523	cf::override;
		2524	},
1740	);	2525	);
1741		2526
1742	=item $client->coro (\&cb)	2527	=item $client->async (\&cb)
1743		2528
1744	Create a new coroutine, running the specified callback. The coroutine will	2529	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2530	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2531	or loss of connection).
1747		2532
1748	=cut	2533	=cut
1749		2534
1750	sub cf::client::coro {	2535	sub cf::client::async {
1751	my ($self, $cb) = @_;	2536	my ($self, $cb) = @_;
1752		2537
1753	my $coro = &cf::async ($cb);	2538	my $coro = &Coro::async ($cb);
1754		2539
1755	$coro->on_destroy (sub {	2540	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2541	delete $self->{_coro}{$coro+0};
1757	});	2542	});
1758		2543
…		…
1791		2576
1792	# here we export the classes and methods available to script code	2577	# here we export the classes and methods available to script code
1793		2578
1794	=pod	2579	=pod
1795		2580
1796	The following fucntions and emthods are available within a safe environment:	2581	The following functions and methods are available within a safe environment:
1797		2582
1798	cf::object contr pay_amount pay_player map	2583	cf::object contr pay_amount pay_player map
1799	cf::object::player player	2584	cf::object::player player
1800	cf::player peaceful	2585	cf::player peaceful
1801	cf::map trigger	2586	cf::map trigger
…		…
1882	=back	2667	=back
1883		2668
1884	=cut	2669	=cut
1885		2670
1886	#############################################################################	2671	#############################################################################
		2672	# the server's init and main functions
1887		2673
1888	=head2 EXTENSION DATABASE SUPPORT	2674	sub load_facedata($) {
		2675	my ($path) = @_;
1889		2676
1890	Crossfire maintains a very simple database for extension use. It can	2677	warn "loading facedata from $path\n";
1891	currently store anything that can be serialised using Storable, which
1892	excludes objects.
1893		2678
1894	The parameter C<$family> should best start with the name of the extension	2679	my $facedata;
1895	using it, it should be unique.	2680	0 < aio_load $path, $facedata
		2681	or die "$path: $!";
1896		2682
1897	=over 4	2683	$facedata = Coro::Storable::thaw $facedata;
1898		2684
1899	=item $hashref = cf::db_get $family	2685	$facedata->{version} == 2
		2686	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		2687
1901	Return a hashref for use by the extension C<$family>, which can be
1902	modified. After modifications, you have to call C<cf::db_dirty> or
1903	C<cf::db_sync>.
1904
1905	=item $value = cf::db_get $family => $key
1906
1907	Returns a single value from the database
1908
1909	=item cf::db_put $family => $hashref
1910
1911	Stores the given family hashref into the database. Updates are delayed, if
1912	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_put $family => $key => $value
1915
1916	Stores the given C<$value> in the family hash. Updates are delayed, if you
1917	want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_dirty
1920
1921	Marks the database as dirty, to be updated at a later time.
1922
1923	=item cf::db_sync
1924
1925	Immediately write the database to disk I<if it is dirty>.
1926
1927	=cut
1928
1929	our $DB;
1930
1931	{
1932	my $path = cf::localdir . "/database.pst";
1933
1934	sub db_load() {
1935	$DB = stat $path ? Storable::retrieve $path : { };
1936	}	2688	{
		2689	my $faces = $facedata->{faceinfo};
1937		2690
1938	my $pid;	2691	while (my ($face, $info) = each %$faces) {
1939		2692	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1940	sub db_save() {	2693	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1941	waitpid $pid, 0 if $pid;	2694	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1942	if (0 == ($pid = fork)) {	2695	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1943	$DB->{_meta}{version} = 1;	2696	Coro::cede;
1944	Storable::nstore $DB, "$path~";
1945	rename "$path~", $path;
1946	cf::_exit 0 if defined $pid;
1947	}
1948	}
1949
1950	my $dirty;
1951
1952	sub db_sync() {
1953	db_save if $dirty;
1954	undef $dirty;
1955	}
1956
1957	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1958	db_sync;
1959	});
1960
1961	sub db_dirty() {
1962	$dirty = 1;
1963	$idle->start;
1964	}
1965
1966	sub db_get($;$) {
1967	@_ >= 2
1968	? $DB->{$_[0]}{$_[1]}
1969	: ($DB->{$_[0]} ||= { })
1970	}
1971
1972	sub db_put($$;$) {
1973	if (@_ >= 3) {
1974	$DB->{$_[0]}{$_[1]} = $_[2];
1975	} else {
1976	$DB->{$_[0]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980
1981	cf::global->attach (
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	2697	}
1986	);
1987	}
1988		2698
1989	#############################################################################	2699	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	2700	next unless $info->{smooth};
		2701	my $idx = cf::face::find $face
		2702	or next;
		2703	if (my $smooth = cf::face::find $info->{smooth}) {
		2704	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2705	} else {
		2706	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2707	}
		2708	Coro::cede;
		2709	}
		2710	}
		2711
		2712	{
		2713	my $anims = $facedata->{animinfo};
		2714
		2715	while (my ($anim, $info) = each %$anims) {
		2716	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2717	Coro::cede;
		2718	}
		2719
		2720	cf::anim::invalidate_all; # d'oh
		2721	}
		2722
		2723	1
		2724	}
		2725
		2726	sub reload_regions {
		2727	load_resource_file "$MAPDIR/regions"
		2728	or die "unable to load regions file\n";
		2729	}
		2730
		2731	sub reload_facedata {
		2732	load_facedata "$DATADIR/facedata"
		2733	or die "unable to load facedata\n";
		2734	}
		2735
		2736	sub reload_archetypes {
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
		2739	#d# NEED to laod twice to resolve forward references
		2740	# this really needs to be done in an extra post-pass
		2741	# (which needs to be synchronous, so solve it differently)
		2742	load_resource_file "$DATADIR/archetypes"
		2743	or die "unable to load archetypes\n";
		2744	}
		2745
		2746	sub reload_treasures {
		2747	load_resource_file "$DATADIR/treasures"
		2748	or die "unable to load treasurelists\n";
		2749	}
		2750
		2751	sub reload_resources {
		2752	warn "reloading resource files...\n";
		2753
		2754	reload_regions;
		2755	reload_facedata;
		2756	#reload_archetypes;#d#
		2757	reload_archetypes;
		2758	reload_treasures;
		2759
		2760	warn "finished reloading resource files\n";
		2761	}
		2762
		2763	sub init {
		2764	reload_resources;
		2765	}
1991		2766
1992	sub cfg_load {	2767	sub cfg_load {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	2768	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	2769	or return;
1995		2770
1996	local $/;	2771	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	2772	*CFG = YAML::Syck::Load <$fh>;
1998		2773
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2774	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		2775
		2776	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2777	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2778
2001	if (exists $CFG{mlockall}) {	2779	if (exists $CFG{mlockall}) {
2002	eval {	2780	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	2781	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	2782	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	2783	};
2006	warn $@ if $@;	2784	warn $@ if $@;
2007	}	2785	}
2008	}	2786	}
2009		2787
2010	sub main {	2788	sub main {
2011	# we must not ever block the main coroutine	2789	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	2790	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2791	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	2792	(async {
2015	Event::one_event;	2793	Event::one_event;
2016	})->();	2794	})->prio (Coro::PRIO_MAX);
2017	};	2795	};
2018		2796
2019	cfg_load;	2797	cfg_load;
2020	db_load;	2798	db_init;
2021	load_extensions;	2799	load_extensions;
		2800
		2801	$TICK_WATCHER->start;
2022	Event::loop;	2802	Event::loop;
2023	}	2803	}
2024		2804
2025	#############################################################################	2805	#############################################################################
2026	# initialisation	2806	# initialisation and cleanup
2027		2807
		2808	# install some emergency cleanup handlers
		2809	BEGIN {
		2810	for my $signal (qw(INT HUP TERM)) {
		2811	Event->signal (
		2812	reentrant => 0,
		2813	data => WF_AUTOCANCEL,
		2814	signal => $signal,
		2815	prio => 0,
		2816	cb => sub {
		2817	cf::cleanup "SIG$signal";
		2818	},
		2819	);
		2820	}
		2821	}
		2822
		2823	sub write_runtime {
		2824	my $runtime = "$LOCALDIR/runtime";
		2825
		2826	# first touch the runtime file to show we are still running:
		2827	# the fsync below can take a very very long time.
		2828
		2829	IO::AIO::aio_utime $runtime, undef, undef;
		2830
		2831	my $guard = cf::lock_acquire "write_runtime";
		2832
		2833	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2834	or return;
		2835
		2836	my $value = $cf::RUNTIME + 90 + 10;
		2837	# 10 is the runtime save interval, for a monotonic clock
		2838	# 60 allows for the watchdog to kill the server.
		2839
		2840	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2841	and return;
		2842
		2843	# always fsync - this file is important
		2844	aio_fsync $fh
		2845	and return;
		2846
		2847	# touch it again to show we are up-to-date
		2848	aio_utime $fh, undef, undef;
		2849
		2850	close $fh
		2851	or return;
		2852
		2853	aio_rename "$runtime~", $runtime
		2854	and return;
		2855
		2856	warn "runtime file written.\n";
		2857
		2858	1
		2859	}
		2860
		2861	sub emergency_save() {
		2862	my $freeze_guard = cf::freeze_mainloop;
		2863
		2864	warn "enter emergency perl save\n";
		2865
		2866	cf::sync_job {
		2867	# use a peculiar iteration method to avoid tripping on perl
		2868	# refcount bugs in for. also avoids problems with players
		2869	# and maps saved/destroyed asynchronously.
		2870	warn "begin emergency player save\n";
		2871	for my $login (keys %cf::PLAYER) {
		2872	my $pl = $cf::PLAYER{$login} or next;
		2873	$pl->valid or next;
		2874	$pl->save;
		2875	}
		2876	warn "end emergency player save\n";
		2877
		2878	warn "begin emergency map save\n";
		2879	for my $path (keys %cf::MAP) {
		2880	my $map = $cf::MAP{$path} or next;
		2881	$map->valid or next;
		2882	$map->save;
		2883	}
		2884	warn "end emergency map save\n";
		2885
		2886	warn "begin emergency database checkpoint\n";
		2887	BDB::db_env_txn_checkpoint $DB_ENV;
		2888	warn "end emergency database checkpoint\n";
		2889	};
		2890
		2891	warn "leave emergency perl save\n";
		2892	}
		2893
		2894	sub post_cleanup {
		2895	my ($make_core) = @_;
		2896
		2897	warn Carp::longmess "post_cleanup backtrace"
		2898	if $make_core;
		2899	}
		2900
2028	sub reload() {	2901	sub do_reload_perl() {
2029	# can/must only be called in main	2902	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	2903	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	2904	warn "can only reload from main coroutine";
2032	return;	2905	return;
2033	}	2906	}
2034		2907
2035	warn "reloading...";	2908	warn "reloading...";
2036		2909
2037	my $guard = freeze_mainloop;	2910	warn "entering sync_job";
		2911
		2912	cf::sync_job {
		2913	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	2914	cf::emergency_save;
		2915	cf::write_runtime; # external watchdog should not bark
2039		2916
2040	eval {	2917	warn "syncing database to disk";
		2918	BDB::db_env_txn_checkpoint $DB_ENV;
		2919
2041	# if anything goes wrong in here, we should simply crash as we already saved	2920	# if anything goes wrong in here, we should simply crash as we already saved
2042		2921
2043	# cancel all watchers	2922	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	2923	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	2924	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	2925	}
2047		2926
		2927	warn "flushing outstanding aio requests";
		2928	for (;;) {
		2929	BDB::flush;
		2930	IO::AIO::flush;
		2931	Coro::cede;
		2932	last unless IO::AIO::nreqs || BDB::nreqs;
		2933	warn "iterate...";
		2934	}
		2935
		2936	++$RELOAD;
		2937
2048	# cancel all extension coros	2938	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	2939	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	2940	%EXT_CORO = ();
2051		2941
2052	# unload all extensions	2942	warn "removing commands";
2053	for (@exts) {	2943	%COMMAND = ();
		2944
		2945	warn "removing ext/exti commands";
		2946	%EXTCMD = ();
		2947	%EXTICMD = ();
		2948
		2949	warn "unloading/nuking all extensions";
		2950	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	2951	warn "... unloading $pkg";
2055	unload_extension $_;	2952
		2953	if (my $cb = $pkg->can ("unload")) {
		2954	eval {
		2955	$cb->($pkg);
		2956	1
		2957	} or warn "$pkg unloaded, but with errors: $@";
2056	}	2958	}
2057		2959
		2960	warn "... nuking $pkg";
		2961	Symbol::delete_package $pkg;
		2962	}
		2963
2058	# unload all modules loaded from $LIBDIR	2964	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	2965	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2966	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		2967
2062	warn "removing <$k>";	2968	warn "... unloading $k";
2063	delete $INC{$k};	2969	delete $INC{$k};
2064		2970
2065	$k =~ s/\.pm$//;	2971	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	2972	$k =~ s/\//::/g;
2067		2973
…		…
2070	}	2976	}
2071		2977
2072	Symbol::delete_package $k;	2978	Symbol::delete_package $k;
2073	}	2979	}
2074		2980
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	2981	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	2982	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2983	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		2984
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	2985	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	2986	delete $INC{"cf.pm"};
		2987	delete $INC{"cf/pod.pm"};
2088		2988
2089	# don't, removes xs symbols, too,	2989	# don't, removes xs symbols, too,
2090	# and global variables created in xs	2990	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	2991	#Symbol::delete_package __PACKAGE__;
2092		2992
2093	# reload cf.pm	2993	warn "unload completed, starting to reload now";
		2994
2094	warn "reloading cf.pm";	2995	warn "reloading cf.pm";
2095	require cf;	2996	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2997	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		2998
2098	# load config and database again	2999	warn "loading config and database again";
2099	cf::cfg_load;	3000	cf::cfg_load;
2100	cf::db_load;
2101		3001
2102	# load extensions
2103	warn "load extensions";	3002	warn "loading extensions";
2104	cf::load_extensions;	3003	cf::load_extensions;
2105		3004
2106	# reattach attachments to objects	3005	warn "reattaching attachments to objects/players";
2107	warn "reattach";	3006	_global_reattach; # objects, sockets
2108	_global_reattach;	3007	warn "reattaching attachments to maps";
2109	};	3008	reattach $_ for values %MAP;
		3009	warn "reattaching attachments to players";
		3010	reattach $_ for values %PLAYER;
2110		3011
2111	if ($@) {	3012	warn "leaving sync_job";
		3013
		3014	1
		3015	} or do {
2112	warn $@;	3016	warn $@;
2113	warn "error while reloading, exiting.";	3017	warn "error while reloading, exiting.";
2114	exit 1;	3018	exit 1;
2115	}	3019	};
2116		3020
2117	warn "reloaded successfully";	3021	warn "reloaded";
2118	};	3022	};
2119		3023
2120	#############################################################################	3024	our $RELOAD_WATCHER; # used only during reload
2121		3025
2122	unless ($LINK_MAP) {	3026	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	3027	# doing reload synchronously and two reloads happen back-to-back,
		3028	# coro crashes during coro_state_free->destroy here.
2124		3029
2125	$LINK_MAP->width (41);	3030	$RELOAD_WATCHER ||= Event->timer (
2126	$LINK_MAP->height (41);	3031	reentrant => 0,
2127	$LINK_MAP->alloc;
2128	$LINK_MAP->path ("{link}");
2129	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2130	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2131
2132	# dirty hack because... archetypes are not yet loaded
2133	Event->timer (
2134	after => 2,	3032	after => 0,
		3033	data => WF_AUTOCANCEL,
2135	cb => sub {	3034	cb => sub {
2136	$_[0]->w->cancel;	3035	do_reload_perl;
2137		3036	undef $RELOAD_WATCHER;
2138	# provide some exits "home"
2139	my $exit = cf::object::new "exit";
2140
2141	$exit->slaying ($EMERGENCY_POSITION->[0]);
2142	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2143	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2144
2145	$LINK_MAP->insert ($exit->clone, 19, 19);
2146	$LINK_MAP->insert ($exit->clone, 19, 20);
2147	$LINK_MAP->insert ($exit->clone, 19, 21);
2148	$LINK_MAP->insert ($exit->clone, 20, 19);
2149	$LINK_MAP->insert ($exit->clone, 20, 21);
2150	$LINK_MAP->insert ($exit->clone, 21, 19);
2151	$LINK_MAP->insert ($exit->clone, 21, 20);
2152	$LINK_MAP->insert ($exit->clone, 21, 21);
2153
2154	$exit->destroy;
2155	});	3037	},
2156		3038	);
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3039	}
2162
2163	register "<global>", __PACKAGE__;
2164		3040
2165	register_command "reload" => sub {	3041	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3042	my ($who, $arg) = @_;
2167		3043
2168	if ($who->flag (FLAG_WIZ)) {	3044	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3045	$who->message ("reloading server.");
		3046	async { reload_perl };
2172	}	3047	}
2173	};	3048	};
2174		3049
2175	unshift @INC, $LIBDIR;	3050	unshift @INC, $LIBDIR;
2176		3051
		3052	my $bug_warning = 0;
		3053
		3054	our @WAIT_FOR_TICK;
		3055	our @WAIT_FOR_TICK_BEGIN;
		3056
		3057	sub wait_for_tick {
		3058	return unless $TICK_WATCHER->is_active;
		3059	return if $Coro::current == $Coro::main;
		3060
		3061	my $signal = new Coro::Signal;
		3062	push @WAIT_FOR_TICK, $signal;
		3063	$signal->wait;
		3064	}
		3065
		3066	sub wait_for_tick_begin {
		3067	return unless $TICK_WATCHER->is_active;
		3068	return if $Coro::current == $Coro::main;
		3069
		3070	my $signal = new Coro::Signal;
		3071	push @WAIT_FOR_TICK_BEGIN, $signal;
		3072	$signal->wait;
		3073	}
		3074
		3075	my $min = 1e6;#d#
		3076	my $avg = 10;
2177	$TICK_WATCHER = Event->timer (	3077	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	3078	reentrant => 0,
		3079	parked => 1,
2179	prio => 0,	3080	prio => 0,
2180	at => $NEXT_TICK || $TICK,	3081	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	3082	data => WF_AUTOCANCEL,
2182	cb => sub {	3083	cb => sub {
		3084	if ($Coro::current != $Coro::main) {
		3085	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3086	unless ++$bug_warning > 10;
		3087	return;
		3088	}
		3089
		3090	$NOW = $tick_start = Event::time;
		3091
2183	cf::server_tick; # one server iteration	3092	cf::server_tick; # one server iteration
		3093
		3094	0 && sync_job {#d#
		3095	for(1..10) {
		3096	my $t = Event::time;
		3097	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3098	or die;
		3099
		3100	$map->width (50);
		3101	$map->height (50);
		3102	$map->alloc;
		3103	$map->_load_objects ("/tmp/x.map", 1);
		3104	my $t = Event::time - $t;
		3105
		3106	#next unless $t < 0.0013;#d#
		3107	if ($t < $min) {
		3108	$min = $t;
		3109	}
		3110	$avg = $avg * 0.99 + $t * 0.01;
		3111	}
		3112	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3113	exit 0;
		3114	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3115	};
		3116
2184	$RUNTIME += $TICK;	3117	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	3118	$NEXT_TICK += $TICK;
2186		3119
		3120	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3121	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3122	Coro::async_pool {
		3123	write_runtime
		3124	or warn "ERROR: unable to write runtime file: $!";
		3125	};
		3126	}
		3127
		3128	# my $AFTER = Event::time;
		3129	# warn $AFTER - $NOW;#d#
		3130
		3131	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3132	$sig->send;
		3133	}
		3134	while (my $sig = shift @WAIT_FOR_TICK) {
		3135	$sig->send;
		3136	}
		3137
		3138	$NOW = Event::time;
		3139
2187	# if we are delayed by four ticks or more, skip them all	3140	# if we are delayed by four ticks or more, skip them all
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3141	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2189		3142
2190	$TICK_WATCHER->at ($NEXT_TICK);	3143	$TICK_WATCHER->at ($NEXT_TICK);
2191	$TICK_WATCHER->start;	3144	$TICK_WATCHER->start;
		3145
		3146	$LOAD = ($NOW - $tick_start) / $TICK;
		3147	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3148
		3149	_post_tick;
		3150
		3151
2192	},	3152	},
2193	);	3153	);
2194		3154
		3155	{
2195	IO::AIO::max_poll_time $TICK * 0.2;	3156	BDB::max_poll_time $TICK * 0.1;
2196		3157	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	3158	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	3159	fd => BDB::poll_fileno,
2199	poll => 'r',	3160	poll => 'r',
2200	prio => 5,	3161	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	3162	data => WF_AUTOCANCEL,
2207	after => 0,	3163	cb => \&BDB::poll_cb,
2208	interval => 10,	3164	);
2209	cb => sub {	3165	BDB::min_parallel 8;
2210	(Coro::unblock_sub {	3166
2211	write_runtime	3167	BDB::set_sync_prepare {
2212	or warn "ERROR: unable to write runtime file: $!";	3168	my $status;
		3169	my $current = $Coro::current;
		3170	(
		3171	sub {
		3172	$status = $!;
		3173	$current->ready; undef $current;
		3174	},
		3175	sub {
		3176	Coro::schedule while defined $current;
		3177	$! = $status;
		3178	},
		3179	)
		3180	};
		3181
		3182	unless ($DB_ENV) {
		3183	$DB_ENV = BDB::db_env_create;
		3184
		3185	cf::sync_job {
		3186	eval {
		3187	BDB::db_env_open
		3188	$DB_ENV,
		3189	$BDBDIR,
		3190	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3191	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3192	0666;
		3193
		3194	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3195
		3196	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3197	$DB_ENV->set_lk_detect;
		3198	};
		3199
		3200	cf::cleanup "db_env_open(db): $@" if $@;
2213	})->();	3201	};
2214	},	3202	}
2215	);	3203	}
		3204
		3205	{
		3206	IO::AIO::min_parallel 8;
		3207
		3208	undef $Coro::AIO::WATCHER;
		3209	IO::AIO::max_poll_time $TICK * 0.1;
		3210	$AIO_POLL_WATCHER = Event->io (
		3211	reentrant => 0,
		3212	data => WF_AUTOCANCEL,
		3213	fd => IO::AIO::poll_fileno,
		3214	poll => 'r',
		3215	prio => 6,
		3216	cb => \&IO::AIO::poll_cb,
		3217	);
		3218	}
		3219
		3220	my $_log_backtrace;
		3221
		3222	sub _log_backtrace {
		3223	my ($msg, @addr) = @_;
		3224
		3225	$msg =~ s/\n//;
		3226
		3227	# limit the # of concurrent backtraces
		3228	if ($_log_backtrace < 2) {
		3229	++$_log_backtrace;
		3230	async {
		3231	my @bt = fork_call {
		3232	@addr = map { sprintf "%x", $_ } @addr;
		3233	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3234	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3235	or die "addr2line: $!";
		3236
		3237	my @funcs;
		3238	my @res = <$fh>;
		3239	chomp for @res;
		3240	while (@res) {
		3241	my ($func, $line) = splice @res, 0, 2, ();
		3242	push @funcs, "[$func] $line";
		3243	}
		3244
		3245	@funcs
		3246	};
		3247
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] $_\n" for @bt;
		3250	--$_log_backtrace;
		3251	};
		3252	} else {
		3253	LOG llevInfo, "[ABT] $msg\n";
		3254	LOG llevInfo, "[ABT] [suppressed]\n";
		3255	}
		3256	}
		3257
		3258	# load additional modules
		3259	use cf::pod;
2216		3260
2217	END { cf::emergency_save }	3261	END { cf::emergency_save }
2218		3262
2219	1	3263	1
2220		3264

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