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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 1.300 by root, Tue Jul 10 06:44:29 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 _store_scalar {
327	and return;	415	open my $fh, ">", \my $buf
328		416	or die "fork_call: cannot open fh-to-buf in child : $!";
		417	Storable::store_fd $_[0], $fh;
329	close $fh	418	close $fh;
330	or return;
331		419
332	aio_rename "$runtime~", $runtime	420	$buf
333	and return;	421	}
334		422
		423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
335	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
		581	}
		582
		583	=item cf::datalog type => key => value, ...
		584
		585	Log a datalog packet of the given type with the given key-value pairs.
		586
		587	=cut
		588
		589	sub datalog($@) {
		590	my ($type, %kv) = @_;
		591	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	592	}
337		593
338	=back	594	=back
339		595
340	=cut	596	=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		597
462	#############################################################################	598	#############################################################################
463		599
464	=head2 ATTACHABLE OBJECTS	600	=head2 ATTACHABLE OBJECTS
465		601
…		…
467	attach callbacks/event handlers (a collection of which is called an "attachment")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
469		605
470	In the following description, CLASS can be any of C<global>, C<object>	606	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	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	608	Crossfire TRT).
473		609
474	=over 4	610	=over 4
475		611
476	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
477		613
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	727	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	728	our @CB_MAP = ();
593		729
594	my %attachment;	730	my %attachment;
595		731
		732	sub cf::attachable::thawer_merge {
		733	# simply override everything except _meta
		734	local $_[0]{_meta};
		735	%{$_[0]} = %{$_[1]};
		736	}
		737
596	sub _attach_cb($$$$) {	738	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	739	my ($registry, $event, $prio, $cb) = @_;
598		740
599	use sort 'stable';	741	use sort 'stable';
600		742
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	776	$registry = $CB_TYPE[$object_type] ||= [];
635		777
636	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		782
641	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	784	my $pkg = shift @arg;
643		785
644	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
674	}	816	}
675		817
676	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
677	} else {	819	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	821	}
680		822
681	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
682	}	824	}
683		825
…		…
685	if (ref $_[0]) {	827	if (ref $_[0]) {
686	_object_attach @_;	828	_object_attach @_;
687	} else {	829	} else {
688	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
689	}	831	}
		832	_recalc_want;
690	};	833	};
691		834
692	# all those should be optimised	835	# all those should be optimised
693	sub cf::attachable::detach {	836	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
698	reattach ($obj);	841	reattach ($obj);
699	} else {	842	} else {
700	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
701	}	844	}
		845	_recalc_want;
702	};	846	};
703		847
704	sub cf::attachable::attached {	848	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
706		850
…		…
771	# object support	915	# object support
772		916
773	sub reattach {	917	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	918	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	919	my ($obj) = @_;
		920
		921	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		922
777	my $registry = $obj->registry;	923	my $registry = $obj->registry;
778		924
779	@$registry = ();	925	@$registry = ();
780		926
…		…
827	$filename, length $$rdata, scalar @$objs;	973	$filename, length $$rdata, scalar @$objs;
828		974
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	975	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	976	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	977	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	978	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	979	close $fh;
834		980
835	if (@$objs) {	981	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	982	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	984	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	985	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	986	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	987	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	988	aio_rename "$filename.pst~", "$filename.pst";
843	}	989	}
844	} else {	990	} else {
845	aio_unlink "$filename.pst";	991	aio_unlink "$filename.pst";
…		…
877	or return;	1023	or return;
878	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
879	}	1025	}
880		1026
881	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1028	$filename, length $data, scalar @{$av || []};
883	return ($data, $av);	1029	return ($data, $av);
884	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
885		1037
886	#############################################################################	1038	#############################################################################
887	# command handling &c	1039	# command handling &c
888		1040
889	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1055	}
904		1056
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1058
907	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
908		1064
909	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
910	called.	1066	called.
911		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
912	=cut	1079	=cut
913		1080
914	sub register_extcmd {	1081	sub register_extcmd {
915	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
916		1083
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
921	}	1091	}
922		1092
923	cf::player->attach (	1093	cf::player->attach (
924	on_command => sub {	1094	on_command => sub {
925	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1104	cf::override;
935	},	1105	},
936	on_extcmd => sub {	1106	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
938		1108
939	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1110
941	if (ref $msg) {	1111	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	1115	}
946	}	1116	}
947	} else {	1117	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1118	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		1120
951	cf::override;	1121	cf::override;
952	},	1122	},
953	);	1123	);
954		1124
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
		1129	for my $path (<$LIBDIR/*.ext>) {
		1130	next unless -r $path;
		1131
		1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
		1189	}
		1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
		1195	};
		1196	}
		1197
		1198	#############################################################################
		1199
		1200	=back
		1201
		1202	=head2 CORE EXTENSIONS
		1203
		1204	Functions and methods that extend core crossfire objects.
		1205
		1206	=cut
		1207
		1208	package cf::player;
		1209
		1210	use Coro::AIO;
		1211
		1212	=head3 cf::player
		1213
		1214	=over 4
		1215
		1216	=item cf::player::find $login
		1217
		1218	Returns the given player object, loading it if necessary (might block).
		1219
		1220	=cut
		1221
		1222	sub playerdir($) {
		1223	"$PLAYERDIR/"
		1224	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1225	}
		1226
		1227	sub path($) {
		1228	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1229
		1230	(playerdir $login) . "/playerdata"
		1231	}
		1232
		1233	sub find_active($) {
		1234	$cf::PLAYER{$_[0]}
		1235	and $cf::PLAYER{$_[0]}->active
		1236	and $cf::PLAYER{$_[0]}
		1237	}
		1238
		1239	sub exists($) {
		1240	my ($login) = @_;
		1241
		1242	$cf::PLAYER{$login}
		1243	or cf::sync_job { !aio_stat path $login }
		1244	}
		1245
		1246	sub find($) {
		1247	return $cf::PLAYER{$_[0]} || do {
		1248	my $login = $_[0];
		1249
		1250	my $guard = cf::lock_acquire "user_find:$login";
		1251
		1252	$cf::PLAYER{$_[0]} || do {
		1253	# rename old playerfiles to new ones
		1254	#TODO: remove when no longer required
		1255	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1256	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1257	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1258	aio_unlink +(playerdir $login) . "/$login.pl";
		1259
		1260	my $pl = load_pl path $login
		1261	or return;
		1262	$cf::PLAYER{$login} = $pl
		1263	}
		1264	}
		1265	}
		1266
		1267	sub save($) {
		1268	my ($pl) = @_;
		1269
		1270	return if $pl->{deny_save};
		1271
		1272	my $path = path $pl;
		1273	my $guard = cf::lock_acquire "user_save:$path";
		1274
		1275	return if $pl->{deny_save};
		1276
		1277	aio_mkdir playerdir $pl, 0770;
		1278	$pl->{last_save} = $cf::RUNTIME;
		1279
		1280	$pl->save_pl ($path);
		1281	Coro::cede;
		1282	}
		1283
		1284	sub new($) {
		1285	my ($login) = @_;
		1286
		1287	my $self = create;
		1288
		1289	$self->ob->name ($login);
		1290	$self->{deny_save} = 1;
		1291
		1292	$cf::PLAYER{$login} = $self;
		1293
		1294	$self
		1295	}
		1296
		1297	=item $pl->quit_character
		1298
		1299	Nukes the player without looking back. If logged in, the connection will
		1300	be destroyed. May block for a long time.
		1301
		1302	=cut
		1303
		1304	sub quit_character {
		1305	my ($pl) = @_;
		1306
		1307	my $name = $pl->ob->name;
		1308
		1309	$pl->{deny_save} = 1;
		1310	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1311
		1312	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1313	$pl->deactivate;
		1314	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1315	$pl->ns->destroy if $pl->ns;
		1316
		1317	my $path = playerdir $pl;
		1318	my $temp = "$path~$cf::RUNTIME~deleting~";
		1319	aio_rename $path, $temp;
		1320	delete $cf::PLAYER{$pl->ob->name};
		1321	$pl->destroy;
		1322
		1323	my $prefix = qr<^~\Q$name\E/>;
		1324
		1325	# nuke player maps
		1326	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1327
		1328	IO::AIO::aio_rmtree $temp;
		1329	}
		1330
		1331	=item $pl->kick
		1332
		1333	Kicks a player out of the game. This destroys the connection.
		1334
		1335	=cut
		1336
		1337	sub kick {
		1338	my ($pl, $kicker) = @_;
		1339
		1340	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1341	$pl->killer ("kicked");
		1342	$pl->ns->destroy;
		1343	}
		1344
		1345	=item cf::player::list_logins
		1346
		1347	Returns am arrayref of all valid playernames in the system, can take a
		1348	while and may block, so not sync_job-capable, ever.
		1349
		1350	=cut
		1351
		1352	sub list_logins {
		1353	my $dirs = aio_readdir $PLAYERDIR
		1354	or return [];
		1355
		1356	my @logins;
		1357
		1358	for my $login (@$dirs) {
		1359	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1360	aio_read $fh, 0, 512, my $buf, 0 or next;
		1361	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1362
		1363	utf8::decode $login;
		1364	push @logins, $login;
		1365	}
		1366
		1367	\@logins
		1368	}
		1369
		1370	=item $player->maps
		1371
		1372	Returns an arrayref of map paths that are private for this
		1373	player. May block.
		1374
		1375	=cut
		1376
		1377	sub maps($) {
		1378	my ($pl) = @_;
		1379
		1380	$pl = ref $pl ? $pl->ob->name : $pl;
		1381
		1382	my $files = aio_readdir playerdir $pl
		1383	or return;
		1384
		1385	my @paths;
		1386
		1387	for (@$files) {
		1388	utf8::decode $_;
		1389	next if /\.(?:pl|pst)$/;
		1390	next unless /^$PATH_SEP/o;
		1391
		1392	push @paths, cf::map::normalise "~$pl/$_";
		1393	}
		1394
		1395	\@paths
		1396	}
		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&amp;/g;
		1409	s/(?<![BIUGH])</&lt;/g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male|female> tags
		1419	|| s{G<([^>|]*)\|([^>]*)>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	|| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	warn $_;#d#
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
		1449	=item $player->ext_reply ($msgid, %msg)
		1450
		1451	Sends an ext reply to the player.
		1452
		1453	=cut
		1454
		1455	sub ext_reply($$%) {
		1456	my ($self, $id, %msg) = @_;
		1457
		1458	$msg{msgid} = $id;
		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1460	}
		1461
		1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
962	my ($path) = @_;	1489	my ($path) = @_;
963		1490
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1491	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1492
970	warn "loading '$path' into '$pkg'\n";	1493	for my $region (list) {
971		1494	if ($region->match && $path =~ $region->match) {
972	open my $fh, "<:utf8", $path	1495	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1496	if $region->specificity > $specificity;
974		1497	}
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	# }	1498	}
1004		1499
1005	# remove commands	1500	$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	}	1501	}
1111		1502
1112	=back	1503	=back
1113
1114		1504
1115	=head3 cf::map	1505	=head3 cf::map
1116		1506
1117	=over 4	1507	=over 4
1118		1508
…		…
1121	package cf::map;	1511	package cf::map;
1122		1512
1123	use Fcntl;	1513	use Fcntl;
1124	use Coro::AIO;	1514	use Coro::AIO;
1125		1515
		1516	use overload
		1517	'""' => \&as_string,
		1518	fallback => 1;
		1519
1126	our $MAX_RESET = 3600;	1520	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1521	our $DEFAULT_RESET = 3000;
1128		1522
1129	sub generate_random_map {	1523	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1524	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1525	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1526	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1527	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1528	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1529	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1530	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1531	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1532	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1533	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1534	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1535	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1537	(cf::region::find $rmp->{region}), $rmp->{custom}
		1538	)
		1539	}
		1540
		1541	=item cf::map->register ($regex, $prio)
		1542
		1543	Register a handler for the map path matching the given regex at the
		1544	givne priority (higher is better, built-in handlers have priority 0, the
		1545	default).
		1546
		1547	=cut
		1548
		1549	sub register {
		1550	my (undef, $regex, $prio) = @_;
		1551	my $pkg = caller;
		1552
		1553	no strict;
		1554	push @{"$pkg\::ISA"}, __PACKAGE__;
		1555
		1556	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1557	}
		1558
		1559	# also paths starting with '/'
		1560	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1561
		1562	sub thawer_merge {
		1563	my ($self, $merge) = @_;
		1564
		1565	# we have to keep some variables in memory intact
		1566	local $self->{path};
		1567	local $self->{load_path};
		1568
		1569	$self->SUPER::thawer_merge ($merge);
		1570	}
		1571
		1572	sub normalise {
		1573	my ($path, $base) = @_;
		1574
		1575	$path = "$path"; # make sure its a string
		1576
		1577	$path =~ s/\.map$//;
		1578
		1579	# map plan:
		1580	#
		1581	# /! non-realised random map exit (special hack!)
		1582	# {... are special paths that are not being touched
		1583	# ?xxx/... are special absolute paths
		1584	# ?random/... random maps
		1585	# /... normal maps
		1586	# ~user/... per-player map of a specific user
		1587
		1588	$path =~ s/$PATH_SEP/\//go;
		1589
		1590	# treat it as relative path if it starts with
		1591	# something that looks reasonable
		1592	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1593	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1594
		1595	$base =~ s{[^/]+/?$}{};
		1596	$path = "$base/$path";
		1597	}
		1598
		1599	for ($path) {
		1600	redo if s{//}{/};
		1601	redo if s{/\.?/}{/};
		1602	redo if s{/[^/]+/\.\./}{/};
		1603	}
		1604
		1605	$path
		1606	}
		1607
		1608	sub new_from_path {
		1609	my (undef, $path, $base) = @_;
		1610
		1611	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1612
		1613	$path = normalise $path, $base;
		1614
		1615	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1616	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1617	my $self = bless cf::map::new, $pkg;
		1618	$self->{path} = $path; $self->path ($path);
		1619	$self->init; # pass $1 etc.
		1620	return $self;
		1621	}
		1622	}
		1623
		1624	Carp::carp "unable to resolve path '$path' (base '$base').";
		1625	()
		1626	}
		1627
		1628	sub init {
		1629	my ($self) = @_;
		1630
		1631	$self
		1632	}
		1633
		1634	sub as_string {
		1635	my ($self) = @_;
		1636
		1637	"$self->{path}"
		1638	}
		1639
		1640	# the displayed name, this is a one way mapping
		1641	sub visible_name {
		1642	&as_string
		1643	}
		1644
		1645	# the original (read-only) location
		1646	sub load_path {
		1647	my ($self) = @_;
		1648
		1649	"$MAPDIR/$self->{path}.map"
		1650	}
		1651
		1652	# the temporary/swap location
		1653	sub save_path {
		1654	my ($self) = @_;
		1655
		1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1657	"$TMPDIR/$path.map"
		1658	}
		1659
		1660	# the unique path, undef == no special unique path
		1661	sub uniq_path {
		1662	my ($self) = @_;
		1663
		1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1665	"$UNIQUEDIR/$path"
1146	}	1666	}
1147		1667
1148	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1149	# all maps in C++...	1669	# all maps in C++...
1150	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1152		1672
1153	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1155	}	1675	}
1156		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
		1685	sub unlink_save {
		1686	my ($self) = @_;
		1687
		1688	utf8::encode (my $save = $self->save_path);
		1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1690	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1691	}
		1692
1157	sub try_load_header($) {	1693	sub load_header_from($) {
1158	my ($path) = @_;	1694	my ($self, $path) = @_;
1159		1695
1160	utf8::encode $path;	1696	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
		1698	# or return;
		1699
		1700	$self->_load_header ($path)
1162	or return;	1701	or return;
1163		1702
1164	my $map = cf::map::new	1703	$self->{load_path} = $path;
		1704
		1705	1
		1706	}
		1707
		1708	sub load_header_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->load_path)
		1712	}
		1713
		1714	sub load_header_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->save_path)
		1718	}
		1719
		1720	sub prepare_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->last_access ((delete $self->{last_access})
		1724	|| $cf::RUNTIME); #d#
		1725	# safety
		1726	$self->{instantiate_time} = $cf::RUNTIME
		1727	if $self->{instantiate_time} > $cf::RUNTIME;
		1728	}
		1729
		1730	sub prepare_orig {
		1731	my ($self) = @_;
		1732
		1733	$self->{load_original} = 1;
		1734	$self->{instantiate_time} = $cf::RUNTIME;
		1735	$self->last_access ($cf::RUNTIME);
		1736	$self->instantiate;
		1737	}
		1738
		1739	sub load_header {
		1740	my ($self) = @_;
		1741
		1742	if ($self->load_header_temp) {
		1743	$self->prepare_temp;
		1744	} else {
		1745	$self->load_header_orig
1165	or return;	1746	or return;
		1747	$self->prepare_orig;
		1748	}
1166		1749
1167	# for better error messages only, will be overwritten	1750	$self->{deny_reset} = 1
1168	$map->path ($path);	1751	if $self->no_reset;
1169		1752
1170	$map->load_header ($path)	1753	$self->default_region (cf::region::find_by_path $self->{path})
1171	or return;	1754	unless $self->default_region;
1172		1755
1173	$map->{load_path} = $path;	1756	1
1174
1175	$map
1176	}	1757	}
1177		1758
1178	sub find;	1759	sub find;
1179	sub find {	1760	sub find {
1180	my ($path, $origin) = @_;	1761	my ($path, $origin) = @_;
1181		1762
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1763	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1764
1187	cf::lock_wait "map_find:$key";	1765	cf::lock_wait "map_find:$path";
1188		1766
1189	$cf::MAP{$key} || do {	1767	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1768	my $guard = cf::lock_acquire "map_find:$path";
1191		1769	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;	1770	or return;
1211		1771
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;	1772	$map->{last_save} = $cf::RUNTIME;
1224		1773
1225	Coro::cede;	1774	$map->load_header
		1775	or return;
1226		1776
1227	if ($map->should_reset) {	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1778	# doing this can freeze the server in a sync job, obviously
		1779	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1780	$map->reset;
1229	undef $guard;	1781	undef $guard;
1230	$map = find $path	1782	return find $path;
1231	or return;
1232	}	1783	}
1233		1784
1234	$cf::MAP{$key} = $map	1785	$cf::MAP{$path} = $map
1235	}	1786	}
1236	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1237		1791
1238	sub load {	1792	sub load {
1239	my ($self) = @_;	1793	my ($self) = @_;
1240		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1241	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1800	my $guard = cf::lock_acquire "map_load:$path";
1243		1801
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1803
1246	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1247		1805
1248	$self->alloc;	1806	$self->alloc;
		1807
		1808	$self->pre_load;
		1809	Coro::cede;
		1810
1249	$self->load_objects ($self->{load_path}, 1)	1811	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1812	or return;
1251		1813
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1815	if delete $self->{load_original};
1254		1816
1255	if (my $uniq = $path->uniq_path) {	1817	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1818	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1819	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1820	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1821	$self->_load_objects ($uniq, 0);
1260	}	1822	}
1261	}	1823	}
1262		1824
1263	Coro::cede;	1825	Coro::cede;
1264
1265	# now do the right thing for maps	1826	# now do the right thing for maps
1266	$self->link_multipart_objects;	1827	$self->link_multipart_objects;
1267
1268	if ($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)	1828	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1829	unless $self->difficulty;
		1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1278	$self->activate;	1839	$self->activate;
1279	}	1840	}
1280		1841
1281	Coro::cede;
1282
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1842	$self->in_memory (cf::MAP_IN_MEMORY);
		1843	}
		1844
		1845	$self->post_load;
		1846	}
		1847
		1848	sub customise_for {
		1849	my ($self, $ob) = @_;
		1850
		1851	return find "~" . $ob->name . "/" . $self->{path}
		1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
		1857	$self
		1858	}
		1859
		1860	# find and load all maps in the 3x3 area around a map
		1861	sub load_diag {
		1862	my ($map) = @_;
		1863
		1864	my @diag; # diagonal neighbours
		1865
		1866	for (0 .. 3) {
		1867	my $neigh = $map->tile_path ($_)
		1868	or next;
		1869	$neigh = find $neigh, $map
		1870	or next;
		1871	$neigh->load;
		1872
		1873	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1874	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1875	}
		1876
		1877	for (@diag) {
		1878	my $neigh = find @$_
		1879	or next;
		1880	$neigh->load;
		1881	}
1284	}	1882	}
1285		1883
1286	sub find_sync {	1884	sub find_sync {
1287	my ($path, $origin) = @_;	1885	my ($path, $origin) = @_;
1288		1886
1289	cf::sync_job { cf::map::find $path, $origin }	1887	cf::sync_job { find $path, $origin }
1290	}	1888	}
1291		1889
1292	sub do_load_sync {	1890	sub do_load_sync {
1293	my ($map) = @_;	1891	my ($map) = @_;
1294		1892
1295	cf::sync_job { $map->load };	1893	cf::sync_job { $map->load };
1296	}	1894	}
1297		1895
		1896	our %MAP_PREFETCH;
		1897	our $MAP_PREFETCHER = undef;
		1898
		1899	sub find_async {
		1900	my ($path, $origin) = @_;
		1901
		1902	$path = normalise $path, $origin && $origin->{path};
		1903
		1904	if (my $map = $cf::MAP{$path}) {
		1905	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1906	}
		1907
		1908	undef $MAP_PREFETCH{$path};
		1909	$MAP_PREFETCHER ||= cf::async {
		1910	while (%MAP_PREFETCH) {
		1911	for my $path (keys %MAP_PREFETCH) {
		1912	my $map = find $path
		1913	or next;
		1914	$map->load;
		1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
		1920	};
		1921	$MAP_PREFETCHER->prio (6);
		1922
		1923	()
		1924	}
		1925
1298	sub save {	1926	sub save {
1299	my ($self) = @_;	1927	my ($self) = @_;
1300		1928
1301	my $lock = cf::lock_acquire "map_data:" . $self->path;	1929	my $lock = cf::lock_acquire "map_data:" . $self->path;
1302		1930
1303	$self->{last_save} = $cf::RUNTIME;	1931	$self->{last_save} = $cf::RUNTIME;
1304		1932
1305	return unless $self->dirty;	1933	return unless $self->dirty;
1306		1934
1307	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $save = $self->save_path; utf8::encode $save;
1308	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1936	my $uniq = $self->uniq_path; utf8::encode $uniq;
1309		1937
1310	$self->{load_path} = $save;	1938	$self->{load_path} = $save;
1311		1939
1312	return if $self->{deny_save};	1940	return if $self->{deny_save};
1313		1941
1314	local $self->{last_access} = $self->last_access;#d#	1942	local $self->{last_access} = $self->last_access;#d#
1315		1943
		1944	cf::async {
		1945	$_->contr->save for $self->players;
		1946	};
		1947
1316	if ($uniq) {	1948	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1949	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1950	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1951	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1952	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1953	}
1322	}	1954	}
1323		1955
1324	sub swap_out {	1956	sub swap_out {
1325	my ($self) = @_;	1957	my ($self) = @_;
…		…
1339		1971
1340	sub reset_at {	1972	sub reset_at {
1341	my ($self) = @_;	1973	my ($self) = @_;
1342		1974
1343	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1344	return 1e99 if $self->{path}{user_rel};
1345	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1346		1977
1347	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1348	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1349		1980
…		…
1354	my ($self) = @_;	1985	my ($self) = @_;
1355		1986
1356	$self->reset_at <= $cf::RUNTIME	1987	$self->reset_at <= $cf::RUNTIME
1357	}	1988	}
1358		1989
1359	sub unlink_save {
1360	my ($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	$self->save;
1378	}
1379
1380	sub reset {	1990	sub reset {
1381	my ($self) = @_;	1991	my ($self) = @_;
1382		1992
1383	my $lock = cf::lock_acquire "map_data:" . $self->path;	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1384		1994
1385	return if $self->players;	1995	return if $self->players;
1386	return if $self->{path}{user_rel};#d#
1387		1996
1388	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
		1998
		1999	$self->in_memory (cf::MAP_SWAPPED);
		2000
		2001	# need to save uniques path
		2002	unless ($self->{deny_save}) {
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2006	if $uniq;
		2007	}
1389		2008
1390	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
		2010
		2011	$self->clear;
1391		2012
1392	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1393		2014
1394	$self->unlink_save;	2015	$self->unlink_save;
1395	$self->destroy;	2016	$self->destroy;
…		…
1398	my $nuke_counter = "aaaa";	2019	my $nuke_counter = "aaaa";
1399		2020
1400	sub nuke {	2021	sub nuke {
1401	my ($self) = @_;	2022	my ($self) = @_;
1402		2023
		2024	delete $cf::MAP{$self->path};
		2025
		2026	$self->unlink_save;
		2027
		2028	bless $self, "cf::map";
		2029	delete $self->{deny_reset};
1403	$self->{deny_save} = 1;	2030	$self->{deny_save} = 1;
1404	$self->reset_timeout (1);	2031	$self->reset_timeout (1);
1405	$self->rename ("{nuke}/" . ($nuke_counter++));	2032	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2033
		2034	$cf::MAP{$self->path} = $self;
		2035
1406	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1407	}	2037	}
1408		2038
1409	sub customise_for {	2039	=item $maps = cf::map::tmp_maps
1410	my ($map, $ob) = @_;
1411		2040
1412	if ($map->per_player) {	2041	Returns an arrayref with all map paths of currently instantiated and saved
1413	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
1414	}	2047	[
1415		2048	map {
1416	$map	2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
1417	}	2055	}
1418		2056
1419	sub emergency_save {	2057	=item $maps = cf::map::random_maps
1420	my $freeze_guard = cf::freeze_mainloop;
1421		2058
1422	warn "enter emergency map save\n";	2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
1423		2061
1424	cf::sync_job {	2062	=cut
1425	warn "begin emergency map save\n";
1426	$_->save for values %cf::MAP;
1427	};
1428		2063
1429	warn "end emergency map save\n";	2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
		2075	=item cf::map::unique_maps
		2076
		2077	Returns an arrayref of paths of all shared maps that have
		2078	instantiated unique items. May block.
		2079
		2080	=cut
		2081
		2082	sub unique_maps() {
		2083	[
		2084	map {
		2085	utf8::decode $_;
		2086	/\.map$/
		2087	? normalise $_
		2088	: ()
		2089	} @{ aio_readdir $UNIQUEDIR or [] }
		2090	]
1430	}	2091	}
1431		2092
1432	package cf;	2093	package cf;
1433		2094
1434	=back	2095	=back
1435		2096
		2097	=head3 cf::object
		2098
		2099	=cut
		2100
		2101	package cf::object;
		2102
		2103	=over 4
		2104
		2105	=item $ob->inv_recursive
		2106
		2107	Returns the inventory of the object _and_ their inventories, recursively.
		2108
		2109	=cut
		2110
		2111	sub inv_recursive_;
		2112	sub inv_recursive_ {
		2113	map { $_, inv_recursive_ $_->inv } @_
		2114	}
		2115
		2116	sub inv_recursive {
		2117	inv_recursive_ inv $_[0]
		2118	}
		2119
		2120	package cf;
		2121
		2122	=back
1436		2123
1437	=head3 cf::object::player	2124	=head3 cf::object::player
1438		2125
1439	=over 4	2126	=over 4
1440		2127
…		…
1454		2141
1455	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1456		2143
1457	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1458	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1459	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1460	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1461	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1462	}	2163	}
1463	}	2164	}
1464		2165
1465	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1466		2167
…		…
1480		2181
1481	=item $player_object->enter_link	2182	=item $player_object->enter_link
1482		2183
1483	Freezes the player and moves him/her to a special map (C<{link}>).	2184	Freezes the player and moves him/her to a special map (C<{link}>).
1484		2185
1485	The player should be reaosnably safe there for short amounts of time. You	2186	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.	2187	I<MUST> call C<leave_link> as soon as possible, though.
1487		2188
		2189	Will never block.
		2190
1488	=item $player_object->leave_link ($map, $x, $y)	2191	=item $player_object->leave_link ($map, $x, $y)
1489		2192
1490	Moves the player out of the specila link map onto the given map. If the	2193	Moves the player out of the special C<{link}> map onto the specified
1491	map is not valid (or omitted), the player will be moved back to the	2194	map. If the map is not valid (or omitted), the player will be moved back
1492	location he/she was before the call to C<enter_link>, or, if that fails,	2195	to the location he/she was before the call to C<enter_link>, or, if that
1493	to the emergency map position.	2196	fails, to the emergency map position.
1494		2197
1495	Might block.	2198	Might block.
1496		2199
1497	=cut	2200	=cut
		2201
		2202	sub link_map {
		2203	unless ($LINK_MAP) {
		2204	$LINK_MAP = cf::map::find "{link}"
		2205	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2206	$LINK_MAP->load;
		2207	}
		2208
		2209	$LINK_MAP
		2210	}
1498		2211
1499	sub cf::object::player::enter_link {	2212	sub cf::object::player::enter_link {
1500	my ($self) = @_;	2213	my ($self) = @_;
1501		2214
1502	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1503		2216
1504	return if $self->map == $LINK_MAP;	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1505		2218
1506	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1507	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1508		2221
1509	$self->enter_map ($LINK_MAP, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1510	}	2223	}
1511		2224
1512	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1513	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1514		2229
1515	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1516		2231
1517	unless ($map) {	2232	unless ($map) {
1518	# restore original map position	2233	# restore original map position
…		…
1532	# use -1 or undef as default coordinates, not 0, 0	2247	# use -1 or undef as default coordinates, not 0, 0
1533	($x, $y) = ($map->enter_x, $map->enter_y)	2248	($x, $y) = ($map->enter_x, $map->enter_y)
1534	if $x <=0 && $y <= 0;	2249	if $x <=0 && $y <= 0;
1535		2250
1536	$map->load;	2251	$map->load;
		2252	$map->load_diag;
1537		2253
		2254	return unless $self->contr->active;
1538	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1539	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1540	}	2259	}
1541		2260
1542	cf::player->attach (
1543	on_logout => sub {
1544	my ($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)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1571		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1572	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1573		2271
1574	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1575	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1576		2277
1577	$self->enter_link;	2278	$self->enter_link;
1578		2279
1579	(cf::async {	2280	(async {
1580	$path = new cf::path $path;	2281	my $map = eval {
1581
1582	my $map = cf::map::find $path->as_string;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1583	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
1584		2286	$map = $check->($map) if $check && $map;
1585	# warn "entering ", $map->path, " at ($x, $y)\n"	2287	} else {
1586	# if $map;
1587
1588	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
1589		2290
		2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
		2297	}
		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1590	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1591	})->prio (1);	2303	})->prio (1);
1592	}	2304	}
1593		2305
1594	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1595		2307
…		…
1597		2309
1598	sub parse_random_map_params {	2310	sub parse_random_map_params {
1599	my ($spec) = @_;	2311	my ($spec) = @_;
1600		2312
1601	my $rmp = { # defaults	2313	my $rmp = { # defaults
1602	xsize => 10,	2314	xsize => (cf::rndm 15, 40),
1603	ysize => 10,	2315	ysize => (cf::rndm 15, 40),
		2316	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2317	#layout => string,
1604	};	2318	};
1605		2319
1606	for (split /\n/, $spec) {	2320	for (split /\n/, $spec) {
1607	my ($k, $v) = split /\s+/, $_, 2;	2321	my ($k, $v) = split /\s+/, $_, 2;
1608		2322
…		…
1612	$rmp	2326	$rmp
1613	}	2327	}
1614		2328
1615	sub prepare_random_map {	2329	sub prepare_random_map {
1616	my ($exit) = @_;	2330	my ($exit) = @_;
		2331
		2332	my $guard = cf::lock_acquire "exit_prepare:$exit";
1617		2333
1618	# all this does is basically replace the /! path by	2334	# all this does is basically replace the /! path by
1619	# a new random map path (?random/...) with a seed	2335	# a new random map path (?random/...) with a seed
1620	# that depends on the exit object	2336	# that depends on the exit object
1621		2337
1622	my $rmp = parse_random_map_params $exit->msg;	2338	my $rmp = parse_random_map_params $exit->msg;
1623		2339
1624	if ($exit->map) {	2340	if ($exit->map) {
1625	$rmp->{region} = $exit->map->region_name;	2341	$rmp->{region} = $exit->region->name;
1626	$rmp->{origin_map} = $exit->map->path;	2342	$rmp->{origin_map} = $exit->map->path;
1627	$rmp->{origin_x} = $exit->x;	2343	$rmp->{origin_x} = $exit->x;
1628	$rmp->{origin_y} = $exit->y;	2344	$rmp->{origin_y} = $exit->y;
1629	}	2345	}
1630		2346
1631	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1632		2348
1633	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1634	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
		2351	my $meta = "$RANDOMDIR/$md5.meta";
1635		2352
1636	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1637	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
		2355	undef $fh;
		2356	aio_rename "$meta~", $meta;
1638		2357
1639	$exit->slaying ("?random/$md5");	2358	$exit->slaying ("?random/$md5");
1640	$exit->msg (undef);	2359	$exit->msg (undef);
1641	}	2360	}
1642	}	2361	}
…		…
1644	sub cf::object::player::enter_exit {	2363	sub cf::object::player::enter_exit {
1645	my ($self, $exit) = @_;	2364	my ($self, $exit) = @_;
1646		2365
1647	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1648		2367
		2368	if ($exit->slaying eq "/!") {
		2369	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2370	# the problem is that $exit might not survive long enough
		2371	# so it needs to be done right now, right here
		2372	cf::sync_job { prepare_random_map $exit };
		2373	}
		2374
		2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2376	my $hp = $exit->stats->hp;
		2377	my $sp = $exit->stats->sp;
		2378
1649	$self->enter_link;	2379	$self->enter_link;
1650		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
1651	(cf::async {	2385	(async {
1652	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
1653	unless (eval {	2387	unless (eval {
1654	prepare_random_map $exit	2388	$self->goto ($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		2389
1660	1;	2390	1;
1661	}) {	2391	}) {
1662	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1663	. "I'll try to bring you back to the map you were before. "	2393	. "I'll try to bring you back to the map you were before. "
1664	. "Please report this to the dungeon master",	2394	. "Please report this to the dungeon master!",
1665	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1666		2396
1667	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1668	$self->leave_link;	2398	$self->leave_link;
1669	}	2399	}
1670	})->prio (1);	2400	})->prio (1);
…		…
1683		2413
1684	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1685	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1686		2416
1687	utf8::encode $text;	2417	utf8::encode $text;
1688	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1689	}	2419	}
1690		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
		2461	=item $client->ext_event ($type, %msg)
		2462
		2463	Sends an ext event to the client.
		2464
		2465	=cut
		2466
		2467	sub cf::client::ext_event($$%) {
		2468	my ($self, $type, %msg) = @_;
		2469
		2470	$msg{msgtype} = "event_$type";
		2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2472	}
1691		2473
1692	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
1693		2475
1694	Queues a query to the client, calling the given callback with	2476	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>,	2477	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>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1697		2479
1698	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
1699	reliable at some point in the future.	2481	become reliable at some point in the future.
1700		2482
1701	=cut	2483	=cut
1702		2484
1703	sub cf::client::query {	2485	sub cf::client::query {
1704	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
1712	utf8::encode $text;	2494	utf8::encode $text;
1713	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1714		2496
1715	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
1716	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
1717	}	2501	}
1718		2502
1719	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
1720	on_reply => sub {	2509	on_reply => sub {
1721	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
1722		2511
1723	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
1724	# get handled first	2513	# get handled first
1725	my $queue = delete $ns->{query_queue}	2514	my $queue = delete $ns->{query_queue}
1726	or return; # be conservative, not sure how that can happen, but we saw a crash here	2515	or return; # be conservative, not sure how that can happen, but we saw a crash here
1727		2516
1728	(shift @$queue)->[1]->($msg);	2517	(shift @$queue)->[1]->($msg);
		2518	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1729		2519
1730	push @{ $ns->{query_queue} }, @$queue;	2520	push @{ $ns->{query_queue} }, @$queue;
1731		2521
1732	if (@{ $ns->{query_queue} } == @$queue) {	2522	if (@{ $ns->{query_queue} } == @$queue) {
1733	if (@$queue) {	2523	if (@$queue) {
…		…
1735	} else {	2525	} else {
1736	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1737	}	2527	}
1738	}	2528	}
1739	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
1740	);	2548	);
1741		2549
1742	=item $client->coro (\&cb)	2550	=item $client->async (\&cb)
1743		2551
1744	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
1745	be automatically cancelled when the client gets destroyed (e.g. on logout,	2553	be automatically cancelled when the client gets destroyed (e.g. on logout,
1746	or loss of connection).	2554	or loss of connection).
1747		2555
1748	=cut	2556	=cut
1749		2557
1750	sub cf::client::coro {	2558	sub cf::client::async {
1751	my ($self, $cb) = @_;	2559	my ($self, $cb) = @_;
1752		2560
1753	my $coro = &cf::async ($cb);	2561	my $coro = &Coro::async ($cb);
1754		2562
1755	$coro->on_destroy (sub {	2563	$coro->on_destroy (sub {
1756	delete $self->{_coro}{$coro+0};	2564	delete $self->{_coro}{$coro+0};
1757	});	2565	});
1758		2566
…		…
1791		2599
1792	# here we export the classes and methods available to script code	2600	# here we export the classes and methods available to script code
1793		2601
1794	=pod	2602	=pod
1795		2603
1796	The following fucntions and emthods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
1797		2605
1798	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
1799	cf::object::player player	2610	cf::object::player
1800	cf::player peaceful	2611	player
1801	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
1802		2618
1803	=cut	2619	=cut
1804		2620
1805	for (	2621	for (
1806	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
1807	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
1808	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
1809	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
1810	) {	2627	) {
1811	no strict 'refs';	2628	no strict 'refs';
…		…
1882	=back	2699	=back
1883		2700
1884	=cut	2701	=cut
1885		2702
1886	#############################################################################	2703	#############################################################################
		2704	# the server's init and main functions
1887		2705
1888	=head2 EXTENSION DATABASE SUPPORT	2706	sub load_facedata($) {
		2707	my ($path) = @_;
1889		2708
1890	Crossfire maintains a very simple database for extension use. It can	2709	warn "loading facedata from $path\n";
1891	currently store anything that can be serialised using Storable, which
1892	excludes objects.
1893		2710
1894	The parameter C<$family> should best start with the name of the extension	2711	my $facedata;
1895	using it, it should be unique.	2712	0 < aio_load $path, $facedata
		2713	or die "$path: $!";
1896		2714
1897	=over 4	2715	$facedata = Coro::Storable::thaw $facedata;
1898		2716
1899	=item $hashref = cf::db_get $family	2717	$facedata->{version} == 2
		2718	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		2719
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	}	2720	{
		2721	my $faces = $facedata->{faceinfo};
1937		2722
1938	my $pid;	2723	while (my ($face, $info) = each %$faces) {
1939		2724	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1940	sub db_save() {	2725	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1941	waitpid $pid, 0 if $pid;	2726	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1942	if (0 == ($pid = fork)) {	2727	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1943	$DB->{_meta}{version} = 1;	2728	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]} = $_[1];
1977	}
1978	db_dirty;
1979	}
1980
1981	cf::global->attach (
1982	prio => 10000,
1983	on_cleanup => sub {
1984	db_sync;
1985	},	2729	}
1986	);
1987	}
1988		2730
1989	#############################################################################	2731	while (my ($face, $info) = each %$faces) {
1990	# the server's main()	2732	next unless $info->{smooth};
		2733	my $idx = cf::face::find $face
		2734	or next;
		2735	if (my $smooth = cf::face::find $info->{smooth}) {
		2736	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2737	} else {
		2738	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2739	}
		2740	Coro::cede;
		2741	}
		2742	}
		2743
		2744	{
		2745	my $anims = $facedata->{animinfo};
		2746
		2747	while (my ($anim, $info) = each %$anims) {
		2748	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2749	Coro::cede;
		2750	}
		2751
		2752	cf::anim::invalidate_all; # d'oh
		2753	}
		2754
		2755	1
		2756	}
		2757
		2758	sub reload_regions {
		2759	load_resource_file "$MAPDIR/regions"
		2760	or die "unable to load regions file\n";
		2761	}
		2762
		2763	sub reload_facedata {
		2764	load_facedata "$DATADIR/facedata"
		2765	or die "unable to load facedata\n";
		2766	}
		2767
		2768	sub reload_archetypes {
		2769	load_resource_file "$DATADIR/archetypes"
		2770	or die "unable to load archetypes\n";
		2771	#d# NEED to laod twice to resolve forward references
		2772	# this really needs to be done in an extra post-pass
		2773	# (which needs to be synchronous, so solve it differently)
		2774	load_resource_file "$DATADIR/archetypes"
		2775	or die "unable to load archetypes\n";
		2776	}
		2777
		2778	sub reload_treasures {
		2779	load_resource_file "$DATADIR/treasures"
		2780	or die "unable to load treasurelists\n";
		2781	}
		2782
		2783	sub reload_resources {
		2784	warn "reloading resource files...\n";
		2785
		2786	reload_regions;
		2787	reload_facedata;
		2788	#reload_archetypes;#d#
		2789	reload_archetypes;
		2790	reload_treasures;
		2791
		2792	warn "finished reloading resource files\n";
		2793	}
		2794
		2795	sub init {
		2796	reload_resources;
		2797	}
1991		2798
1992	sub cfg_load {	2799	sub cfg_load {
1993	open my $fh, "<:utf8", cf::confdir . "/config"	2800	open my $fh, "<:utf8", "$CONFDIR/config"
1994	or return;	2801	or return;
1995		2802
1996	local $/;	2803	local $/;
1997	*CFG = YAML::Syck::Load <$fh>;	2804	*CFG = YAML::Syck::Load <$fh>;
1998		2805
1999	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2806	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2000		2807
		2808	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2809	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2810
2001	if (exists $CFG{mlockall}) {	2811	if (exists $CFG{mlockall}) {
2002	eval {	2812	eval {
2003	$CFG{mlockall} ? &mlockall : &munlockall	2813	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2004	and die "WARNING: m(un)lockall failed: $!\n";	2814	and die "WARNING: m(un)lockall failed: $!\n";
2005	};	2815	};
2006	warn $@ if $@;	2816	warn $@ if $@;
2007	}	2817	}
2008	}	2818	}
2009		2819
2010	sub main {	2820	sub main {
2011	# we must not ever block the main coroutine	2821	# we must not ever block the main coroutine
2012	local $Coro::idle = sub {	2822	local $Coro::idle = sub {
2013	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2823	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2014	(Coro::unblock_sub {	2824	(async {
2015	Event::one_event;	2825	Event::one_event;
2016	})->();	2826	})->prio (Coro::PRIO_MAX);
2017	};	2827	};
2018		2828
2019	cfg_load;	2829	cfg_load;
2020	db_load;	2830	db_init;
2021	load_extensions;	2831	load_extensions;
		2832
		2833	$TICK_WATCHER->start;
2022	Event::loop;	2834	Event::loop;
2023	}	2835	}
2024		2836
2025	#############################################################################	2837	#############################################################################
2026	# initialisation	2838	# initialisation and cleanup
2027		2839
		2840	# install some emergency cleanup handlers
		2841	BEGIN {
		2842	for my $signal (qw(INT HUP TERM)) {
		2843	Event->signal (
		2844	reentrant => 0,
		2845	data => WF_AUTOCANCEL,
		2846	signal => $signal,
		2847	prio => 0,
		2848	cb => sub {
		2849	cf::cleanup "SIG$signal";
		2850	},
		2851	);
		2852	}
		2853	}
		2854
		2855	sub write_runtime {
		2856	my $runtime = "$LOCALDIR/runtime";
		2857
		2858	# first touch the runtime file to show we are still running:
		2859	# the fsync below can take a very very long time.
		2860
		2861	IO::AIO::aio_utime $runtime, undef, undef;
		2862
		2863	my $guard = cf::lock_acquire "write_runtime";
		2864
		2865	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2866	or return;
		2867
		2868	my $value = $cf::RUNTIME + 90 + 10;
		2869	# 10 is the runtime save interval, for a monotonic clock
		2870	# 60 allows for the watchdog to kill the server.
		2871
		2872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2873	and return;
		2874
		2875	# always fsync - this file is important
		2876	aio_fsync $fh
		2877	and return;
		2878
		2879	# touch it again to show we are up-to-date
		2880	aio_utime $fh, undef, undef;
		2881
		2882	close $fh
		2883	or return;
		2884
		2885	aio_rename "$runtime~", $runtime
		2886	and return;
		2887
		2888	warn "runtime file written.\n";
		2889
		2890	1
		2891	}
		2892
		2893	sub emergency_save() {
		2894	my $freeze_guard = cf::freeze_mainloop;
		2895
		2896	warn "enter emergency perl save\n";
		2897
		2898	cf::sync_job {
		2899	# use a peculiar iteration method to avoid tripping on perl
		2900	# refcount bugs in for. also avoids problems with players
		2901	# and maps saved/destroyed asynchronously.
		2902	warn "begin emergency player save\n";
		2903	for my $login (keys %cf::PLAYER) {
		2904	my $pl = $cf::PLAYER{$login} or next;
		2905	$pl->valid or next;
		2906	$pl->save;
		2907	}
		2908	warn "end emergency player save\n";
		2909
		2910	warn "begin emergency map save\n";
		2911	for my $path (keys %cf::MAP) {
		2912	my $map = $cf::MAP{$path} or next;
		2913	$map->valid or next;
		2914	$map->save;
		2915	}
		2916	warn "end emergency map save\n";
		2917
		2918	warn "begin emergency database checkpoint\n";
		2919	BDB::db_env_txn_checkpoint $DB_ENV;
		2920	warn "end emergency database checkpoint\n";
		2921	};
		2922
		2923	warn "leave emergency perl save\n";
		2924	}
		2925
		2926	sub post_cleanup {
		2927	my ($make_core) = @_;
		2928
		2929	warn Carp::longmess "post_cleanup backtrace"
		2930	if $make_core;
		2931	}
		2932
2028	sub reload() {	2933	sub do_reload_perl() {
2029	# can/must only be called in main	2934	# can/must only be called in main
2030	if ($Coro::current != $Coro::main) {	2935	if ($Coro::current != $Coro::main) {
2031	warn "can only reload from main coroutine\n";	2936	warn "can only reload from main coroutine";
2032	return;	2937	return;
2033	}	2938	}
2034		2939
2035	warn "reloading...";	2940	warn "reloading...";
2036		2941
2037	my $guard = freeze_mainloop;	2942	warn "entering sync_job";
		2943
		2944	cf::sync_job {
		2945	cf::write_runtime; # external watchdog should not bark
2038	cf::emergency_save;	2946	cf::emergency_save;
		2947	cf::write_runtime; # external watchdog should not bark
2039		2948
2040	eval {	2949	warn "syncing database to disk";
		2950	BDB::db_env_txn_checkpoint $DB_ENV;
		2951
2041	# if anything goes wrong in here, we should simply crash as we already saved	2952	# if anything goes wrong in here, we should simply crash as we already saved
2042		2953
2043	# cancel all watchers	2954	warn "cancelling all WF_AUTOCANCEL watchers";
2044	for (Event::all_watchers) {	2955	for (Event::all_watchers) {
2045	$_->cancel if $_->data & WF_AUTOCANCEL;	2956	$_->cancel if $_->data & WF_AUTOCANCEL;
2046	}	2957	}
2047		2958
		2959	warn "flushing outstanding aio requests";
		2960	for (;;) {
		2961	BDB::flush;
		2962	IO::AIO::flush;
		2963	Coro::cede;
		2964	last unless IO::AIO::nreqs || BDB::nreqs;
		2965	warn "iterate...";
		2966	}
		2967
		2968	++$RELOAD;
		2969
2048	# cancel all extension coros	2970	warn "cancelling all extension coros";
2049	$_->cancel for values %EXT_CORO;	2971	$_->cancel for values %EXT_CORO;
2050	%EXT_CORO = ();	2972	%EXT_CORO = ();
2051		2973
2052	# unload all extensions	2974	warn "removing commands";
2053	for (@exts) {	2975	%COMMAND = ();
		2976
		2977	warn "removing ext/exti commands";
		2978	%EXTCMD = ();
		2979	%EXTICMD = ();
		2980
		2981	warn "unloading/nuking all extensions";
		2982	for my $pkg (@EXTS) {
2054	warn "unloading <$_>";	2983	warn "... unloading $pkg";
2055	unload_extension $_;	2984
		2985	if (my $cb = $pkg->can ("unload")) {
		2986	eval {
		2987	$cb->($pkg);
		2988	1
		2989	} or warn "$pkg unloaded, but with errors: $@";
2056	}	2990	}
2057		2991
		2992	warn "... nuking $pkg";
		2993	Symbol::delete_package $pkg;
		2994	}
		2995
2058	# unload all modules loaded from $LIBDIR	2996	warn "unloading all perl modules loaded from $LIBDIR";
2059	while (my ($k, $v) = each %INC) {	2997	while (my ($k, $v) = each %INC) {
2060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2998	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2061		2999
2062	warn "removing <$k>";	3000	warn "... unloading $k";
2063	delete $INC{$k};	3001	delete $INC{$k};
2064		3002
2065	$k =~ s/\.pm$//;	3003	$k =~ s/\.pm$//;
2066	$k =~ s/\//::/g;	3004	$k =~ s/\//::/g;
2067		3005
…		…
2070	}	3008	}
2071		3009
2072	Symbol::delete_package $k;	3010	Symbol::delete_package $k;
2073	}	3011	}
2074		3012
2075	# sync database to disk
2076	cf::db_sync;
2077	IO::AIO::flush;
2078
2079	# get rid of safe::, as good as possible	3013	warn "getting rid of safe::, as good as possible";
2080	Symbol::delete_package "safe::$_"	3014	Symbol::delete_package "safe::$_"
2081	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3015	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2082		3016
2083	# remove register_script_function callbacks
2084	# TODO
2085
2086	# unload cf.pm "a bit"	3017	warn "unloading cf.pm \"a bit\"";
2087	delete $INC{"cf.pm"};	3018	delete $INC{"cf.pm"};
		3019	delete $INC{"cf/pod.pm"};
2088		3020
2089	# don't, removes xs symbols, too,	3021	# don't, removes xs symbols, too,
2090	# and global variables created in xs	3022	# and global variables created in xs
2091	#Symbol::delete_package __PACKAGE__;	3023	#Symbol::delete_package __PACKAGE__;
2092		3024
2093	# reload cf.pm	3025	warn "unload completed, starting to reload now";
		3026
2094	warn "reloading cf.pm";	3027	warn "reloading cf.pm";
2095	require cf;	3028	require cf;
2096	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3029	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2097		3030
2098	# load config and database again	3031	warn "loading config and database again";
2099	cf::cfg_load;	3032	cf::cfg_load;
2100	cf::db_load;
2101		3033
2102	# load extensions
2103	warn "load extensions";	3034	warn "loading extensions";
2104	cf::load_extensions;	3035	cf::load_extensions;
2105		3036
2106	# reattach attachments to objects	3037	warn "reattaching attachments to objects/players";
2107	warn "reattach";	3038	_global_reattach; # objects, sockets
2108	_global_reattach;	3039	warn "reattaching attachments to maps";
2109	};	3040	reattach $_ for values %MAP;
		3041	warn "reattaching attachments to players";
		3042	reattach $_ for values %PLAYER;
2110		3043
2111	if ($@) {	3044	warn "leaving sync_job";
		3045
		3046	1
		3047	} or do {
2112	warn $@;	3048	warn $@;
2113	warn "error while reloading, exiting.";	3049	warn "error while reloading, exiting.";
2114	exit 1;	3050	exit 1;
2115	}	3051	};
2116		3052
2117	warn "reloaded successfully";	3053	warn "reloaded";
2118	};	3054	};
2119		3055
2120	#############################################################################	3056	our $RELOAD_WATCHER; # used only during reload
2121		3057
2122	unless ($LINK_MAP) {	3058	sub reload_perl() {
2123	$LINK_MAP = cf::map::new;	3059	# doing reload synchronously and two reloads happen back-to-back,
		3060	# coro crashes during coro_state_free->destroy here.
2124		3061
2125	$LINK_MAP->width (41);	3062	$RELOAD_WATCHER ||= Event->timer (
2126	$LINK_MAP->height (41);	3063	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,	3064	after => 0,
		3065	data => WF_AUTOCANCEL,
2135	cb => sub {	3066	cb => sub {
2136	$_[0]->w->cancel;	3067	do_reload_perl;
2137		3068	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	});	3069	},
2156		3070	);
2157	$LINK_MAP->{deny_save} = 1;
2158	$LINK_MAP->{deny_reset} = 1;
2159
2160	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2161	}	3071	}
2162
2163	register "<global>", __PACKAGE__;
2164		3072
2165	register_command "reload" => sub {	3073	register_command "reload" => sub {
2166	my ($who, $arg) = @_;	3074	my ($who, $arg) = @_;
2167		3075
2168	if ($who->flag (FLAG_WIZ)) {	3076	if ($who->flag (FLAG_WIZ)) {
2169	$who->message ("start of reload.");
2170	reload;
2171	$who->message ("end of reload.");	3077	$who->message ("reloading server.");
		3078	async { reload_perl };
2172	}	3079	}
2173	};	3080	};
2174		3081
2175	unshift @INC, $LIBDIR;	3082	unshift @INC, $LIBDIR;
2176		3083
		3084	my $bug_warning = 0;
		3085
		3086	our @WAIT_FOR_TICK;
		3087	our @WAIT_FOR_TICK_BEGIN;
		3088
		3089	sub wait_for_tick {
		3090	return unless $TICK_WATCHER->is_active;
		3091	return if $Coro::current == $Coro::main;
		3092
		3093	my $signal = new Coro::Signal;
		3094	push @WAIT_FOR_TICK, $signal;
		3095	$signal->wait;
		3096	}
		3097
		3098	sub wait_for_tick_begin {
		3099	return unless $TICK_WATCHER->is_active;
		3100	return if $Coro::current == $Coro::main;
		3101
		3102	my $signal = new Coro::Signal;
		3103	push @WAIT_FOR_TICK_BEGIN, $signal;
		3104	$signal->wait;
		3105	}
		3106
		3107	my $min = 1e6;#d#
		3108	my $avg = 10;
2177	$TICK_WATCHER = Event->timer (	3109	$TICK_WATCHER = Event->timer (
2178	reentrant => 0,	3110	reentrant => 0,
		3111	parked => 1,
2179	prio => 0,	3112	prio => 0,
2180	at => $NEXT_TICK || $TICK,	3113	at => $NEXT_TICK || $TICK,
2181	data => WF_AUTOCANCEL,	3114	data => WF_AUTOCANCEL,
2182	cb => sub {	3115	cb => sub {
		3116	if ($Coro::current != $Coro::main) {
		3117	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3118	unless ++$bug_warning > 10;
		3119	return;
		3120	}
		3121
		3122	$NOW = $tick_start = Event::time;
		3123
2183	cf::server_tick; # one server iteration	3124	cf::server_tick; # one server iteration
		3125
		3126	0 && sync_job {#d#
		3127	for(1..10) {
		3128	my $t = Event::time;
		3129	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3130	or die;
		3131
		3132	$map->width (50);
		3133	$map->height (50);
		3134	$map->alloc;
		3135	$map->_load_objects ("/tmp/x.map", 1);
		3136	my $t = Event::time - $t;
		3137
		3138	#next unless $t < 0.0013;#d#
		3139	if ($t < $min) {
		3140	$min = $t;
		3141	}
		3142	$avg = $avg * 0.99 + $t * 0.01;
		3143	}
		3144	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3145	exit 0;
		3146	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3147	};
		3148
2184	$RUNTIME += $TICK;	3149	$RUNTIME += $TICK;
2185	$NEXT_TICK += $TICK;	3150	$NEXT_TICK += $TICK;
2186		3151
		3152	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3153	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3154	Coro::async_pool {
		3155	write_runtime
		3156	or warn "ERROR: unable to write runtime file: $!";
		3157	};
		3158	}
		3159
		3160	# my $AFTER = Event::time;
		3161	# warn $AFTER - $NOW;#d#
		3162
		3163	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3164	$sig->send;
		3165	}
		3166	while (my $sig = shift @WAIT_FOR_TICK) {
		3167	$sig->send;
		3168	}
		3169
		3170	$NOW = Event::time;
		3171
2187	# if we are delayed by four ticks or more, skip them all	3172	# if we are delayed by four ticks or more, skip them all
2188	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3173	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2189		3174
2190	$TICK_WATCHER->at ($NEXT_TICK);	3175	$TICK_WATCHER->at ($NEXT_TICK);
2191	$TICK_WATCHER->start;	3176	$TICK_WATCHER->start;
		3177
		3178	$LOAD = ($NOW - $tick_start) / $TICK;
		3179	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3180
		3181	_post_tick;
		3182
		3183
2192	},	3184	},
2193	);	3185	);
2194		3186
		3187	{
2195	IO::AIO::max_poll_time $TICK * 0.2;	3188	BDB::max_poll_time $TICK * 0.1;
2196		3189	$BDB_POLL_WATCHER = Event->io (
2197	Event->io (	3190	reentrant => 0,
2198	fd => IO::AIO::poll_fileno,	3191	fd => BDB::poll_fileno,
2199	poll => 'r',	3192	poll => 'r',
2200	prio => 5,	3193	prio => 0,
2201	data => WF_AUTOCANCEL,
2202	cb => \&IO::AIO::poll_cb,
2203	);
2204
2205	Event->timer (
2206	data => WF_AUTOCANCEL,	3194	data => WF_AUTOCANCEL,
2207	after => 0,	3195	cb => \&BDB::poll_cb,
2208	interval => 10,	3196	);
2209	cb => sub {	3197	BDB::min_parallel 8;
2210	(Coro::unblock_sub {	3198
2211	write_runtime	3199	BDB::set_sync_prepare {
2212	or warn "ERROR: unable to write runtime file: $!";	3200	my $status;
		3201	my $current = $Coro::current;
		3202	(
		3203	sub {
		3204	$status = $!;
		3205	$current->ready; undef $current;
		3206	},
		3207	sub {
		3208	Coro::schedule while defined $current;
		3209	$! = $status;
		3210	},
		3211	)
		3212	};
		3213
		3214	unless ($DB_ENV) {
		3215	$DB_ENV = BDB::db_env_create;
		3216
		3217	cf::sync_job {
		3218	eval {
		3219	BDB::db_env_open
		3220	$DB_ENV,
		3221	$BDBDIR,
		3222	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3223	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3224	0666;
		3225
		3226	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3227
		3228	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3229	$DB_ENV->set_lk_detect;
		3230	};
		3231
		3232	cf::cleanup "db_env_open(db): $@" if $@;
2213	})->();	3233	};
2214	},	3234	}
2215	);	3235	}
		3236
		3237	{
		3238	IO::AIO::min_parallel 8;
		3239
		3240	undef $Coro::AIO::WATCHER;
		3241	IO::AIO::max_poll_time $TICK * 0.1;
		3242	$AIO_POLL_WATCHER = Event->io (
		3243	reentrant => 0,
		3244	data => WF_AUTOCANCEL,
		3245	fd => IO::AIO::poll_fileno,
		3246	poll => 'r',
		3247	prio => 6,
		3248	cb => \&IO::AIO::poll_cb,
		3249	);
		3250	}
		3251
		3252	my $_log_backtrace;
		3253
		3254	sub _log_backtrace {
		3255	my ($msg, @addr) = @_;
		3256
		3257	$msg =~ s/\n//;
		3258
		3259	# limit the # of concurrent backtraces
		3260	if ($_log_backtrace < 2) {
		3261	++$_log_backtrace;
		3262	async {
		3263	my @bt = fork_call {
		3264	@addr = map { sprintf "%x", $_ } @addr;
		3265	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3266	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3267	or die "addr2line: $!";
		3268
		3269	my @funcs;
		3270	my @res = <$fh>;
		3271	chomp for @res;
		3272	while (@res) {
		3273	my ($func, $line) = splice @res, 0, 2, ();
		3274	push @funcs, "[$func] $line";
		3275	}
		3276
		3277	@funcs
		3278	};
		3279
		3280	LOG llevInfo, "[ABT] $msg\n";
		3281	LOG llevInfo, "[ABT] $_\n" for @bt;
		3282	--$_log_backtrace;
		3283	};
		3284	} else {
		3285	LOG llevInfo, "[ABT] $msg\n";
		3286	LOG llevInfo, "[ABT] [suppressed]\n";
		3287	}
		3288	}
		3289
		3290	# load additional modules
		3291	use cf::pod;
2216		3292
2217	END { cf::emergency_save }	3293	END { cf::emergency_save }
2218		3294
2219	1	3295	1
2220		3296

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