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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.301 by root, Tue Jul 10 07:01:51 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 (Coro::PRIO_MAX); # 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
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
226	sub freeze_mainloop {	310	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
228		312
229	my $guard = Coro::guard { $TICK_WATCHER->start };	313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
230	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
231	$guard	317	$guard
232	}	318	}
233		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
234	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
235		331
236	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
239		336
240	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
243	fast or be very important.	340	fast or be very important.
…		…
246		343
247	sub sync_job(&) {	344	sub sync_job(&) {
248	my ($job) = @_;	345	my ($job) = @_;
249		346
250	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
251	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
253		352
254	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	354	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	355	my $freeze_guard = freeze_mainloop;
257		356
258	my $busy = 1;	357	my $busy = 1;
259	my @res;	358	my @res;
260		359
261	(Coro::async_pool {	360	(async {
262	@res = eval { $job->() };	361	@res = eval { $job->() };
263	warn $@ if $@;	362	warn $@ if $@;
264	undef $busy;	363	undef $busy;
265	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
266		365
267	while ($busy) {	366	while ($busy) {
268	unless (Coro::cede) {	367	Coro::cede or Event::one_event;
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;
271	}	368	}
272	}	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
273		376
274	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
275	} else {	378	} else {
276	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
277		380
278	$job->()	381	$job->()
279	}	382	}
280	}	383	}
281		384
282	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
283		386
284	Creates (and readies) and returns a new coro. This coro is automcatially	387	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
286		389
287	=cut	390	=cut
288		391
289	sub coro(&) {	392	sub async_ext(&) {
290	my $cb = shift;	393	my $cb = shift;
291		394
292	my $coro = &Coro::async_pool ($cb);	395	my $coro = &Coro::async ($cb);
293		396
294	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
296	});	399	});
297	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
298		401
299	$coro	402	$coro
300	}	403	}
301		404
302	sub write_runtime {	405	=item fork_call { }, $args
303	my $runtime = cf::localdir . "/runtime";
304		406
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
306	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.
307		411
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		413
312	aio_fsync $fh	414	sub _store_scalar {
313	and return;	415	open my $fh, ">", \my $buf
314		416	or die "fork_call: cannot open fh-to-buf in child : $!";
		417	Storable::store_fd $_[0], $fh;
315	close $fh	418	close $fh;
316	or return;
317		419
318	aio_rename "$runtime~", $runtime	420	$buf
319	and return;	421	}
320		422
		423	sub fork_call(&@) {
		424	my ($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 $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
321	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		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 });
322	}	592	}
323		593
324	=back	594	=back
325		595
326	=cut	596	=cut
327
328	#############################################################################
329
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447		597
448	#############################################################################	598	#############################################################################
449		599
450	=head2 ATTACHABLE OBJECTS	600	=head2 ATTACHABLE OBJECTS
451		601
…		…
453	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")
454	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
455		605
456	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>
457	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
458	crossfire+).	608	Crossfire TRT).
459		609
460	=over 4	610	=over 4
461		611
462	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
463		613
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	727	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	728	our @CB_MAP = ();
579		729
580	my %attachment;	730	my %attachment;
581		731
		732	sub cf::attachable::thawer_merge {
		733	# simply override everything except _meta
		734	local $_[0]{_meta};
		735	%{$_[0]} = %{$_[1]};
		736	}
		737
582	sub _attach_cb($$$$) {	738	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	739	my ($registry, $event, $prio, $cb) = @_;
584		740
585	use sort 'stable';	741	use sort 'stable';
586		742
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	776	$registry = $CB_TYPE[$object_type] ||= [];
621		777
622	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		782
627	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	784	my $pkg = shift @arg;
629		785
630	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
659	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
660	}	816	}
661		817
662	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
663	} else {	819	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
665	}	821	}
666		822
667	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
668	}	824	}
669		825
…		…
671	if (ref $_[0]) {	827	if (ref $_[0]) {
672	_object_attach @_;	828	_object_attach @_;
673	} else {	829	} else {
674	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
675	}	831	}
		832	_recalc_want;
676	};	833	};
677		834
678	# all those should be optimised	835	# all those should be optimised
679	sub cf::attachable::detach {	836	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
684	reattach ($obj);	841	reattach ($obj);
685	} else {	842	} else {
686	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
687	}	844	}
		845	_recalc_want;
688	};	846	};
689		847
690	sub cf::attachable::attached {	848	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
692		850
…		…
757	# object support	915	# object support
758		916
759	sub reattach {	917	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	918	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	919	my ($obj) = @_;
		920
		921	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		922
763	my $registry = $obj->registry;	923	my $registry = $obj->registry;
764		924
765	@$registry = ();	925	@$registry = ();
766		926
…		…
813	$filename, length $$rdata, scalar @$objs;	973	$filename, length $$rdata, scalar @$objs;
814		974
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	975	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	976	chmod SAVE_MODE, $fh;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	977	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	978	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	979	close $fh;
820		980
821	if (@$objs) {	981	if (@$objs) {
822	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) {
823	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	984	my $data = Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	985	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	986	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	987	close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	988	aio_rename "$filename.pst~", "$filename.pst";
829	}	989	}
830	} else {	990	} else {
831	aio_unlink "$filename.pst";	991	aio_unlink "$filename.pst";
…		…
863	or return;	1023	or return;
864	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
865	}	1025	}
866		1026
867	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1028	$filename, length $data, scalar @{$av || []};
869	return ($data, $av);	1029	return ($data, $av);
870	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
871		1037
872	#############################################################################	1038	#############################################################################
873	# command handling &c	1039	# command handling &c
874		1040
875	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1055	}
890		1056
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1058
893	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.
894		1064
895	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
896	called.	1066	called.
897		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
898	=cut	1079	=cut
899		1080
900	sub register_extcmd {	1081	sub register_extcmd {
901	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
902		1083
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
907	}	1091	}
908		1092
909	cf::player->attach (	1093	cf::player->attach (
910	on_command => sub {	1094	on_command => sub {
911	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
920	cf::override;	1104	cf::override;
921	},	1105	},
922	on_extcmd => sub {	1106	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
924		1108
925	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1110
927	if (ref $msg) {	1111	if (ref $msg) {
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
930	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
931	}	1115	}
932	}	1116	}
933	} else {	1117	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1118	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
936		1120
937	cf::override;	1121	cf::override;
938	},	1122	},
939	);	1123	);
940		1124
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	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	$_
		1441	}
		1442
		1443	sub hintmode {
		1444	$_[0]{hintmode} = $_[1] if @_ > 1;
		1445	$_[0]{hintmode}
		1446	}
		1447
		1448	=item $player->ext_reply ($msgid, %msg)
		1449
		1450	Sends an ext reply to the player.
		1451
		1452	=cut
		1453
		1454	sub ext_reply($$%) {
		1455	my ($self, $id, %msg) = @_;
		1456
		1457	$msg{msgid} = $id;
		1458	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1459	}
		1460
		1461	=item $player->ext_event ($type, %msg)
		1462
		1463	Sends an ext event to the client.
		1464
		1465	=cut
		1466
		1467	sub ext_event($$%) {
		1468	my ($self, $type, %msg) = @_;
		1469
		1470	$self->ns->ext_event ($type, %msg);
		1471	}
		1472
		1473	=head3 cf::region
		1474
		1475	=over 4
		1476
		1477	=cut
		1478
		1479	package cf::region;
		1480
		1481	=item cf::region::find_by_path $path
		1482
		1483	Tries to decuce the likely region for a map knowing only its path.
		1484
		1485	=cut
		1486
		1487	sub find_by_path($) {
948	my ($path) = @_;	1488	my ($path) = @_;
949		1489
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1490	my ($match, $specificity);
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955		1491
956	warn "loading '$path' into '$pkg'\n";	1492	for my $region (list) {
957		1493	if ($region->match && $path =~ $region->match) {
958	open my $fh, "<:utf8", $path	1494	($match, $specificity) = ($region, $region->specificity)
959	or die "$path: $!";	1495	if $region->specificity > $specificity;
960		1496	}
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }	1497	}
990		1498
991	# remove commands	1499	$match
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}
1000	}
1001
1002	# remove extcmds
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}
1016
1017	sub load_extensions {
1018	for my $ext (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;
1020	eval {
1021	load_extension $ext;
1022	1
1023	} or warn "$ext not loaded: $@";
1024	}
1025	}
1026
1027	#############################################################################
1028	# load/save/clean perl data associated with a map
1029
1030	*cf::mapsupport::on_clean = sub {
1031	my ($map) = @_;
1032
1033	my $path = $map->tmpname;
1034	defined $path or return;
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}
1047
1048	# TODO: compatibility cruft, remove when no longer needed
1049	cf::player->attach (
1050	on_load => sub {
1051	my ($pl, $path) = @_;
1052
1053	for my $o (all_objects $pl->ob) {
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1055	$o->set_ob_key_value ("_perl_data");
1056
1057	%$o = %{ Storable::thaw pack "H*", $value };
1058	}
1059	}
1060	},
1061	);
1062
1063	#############################################################################
1064
1065	=head2 CORE EXTENSIONS
1066
1067	Functions and methods that extend core crossfire objects.
1068
1069	=head3 cf::player
1070
1071	=over 4
1072
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut
1078
1079	sub cf::player::exists($) {
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)
1085
1086	Sends an ext reply to the player.
1087
1088	=cut
1089
1090	sub cf::player::ext_reply($$$%) {
1091	my ($self, $id, %msg) = @_;
1092
1093	$msg{msgid} = $id;
1094
1095	$self->send ("ext " . to_json \%msg);
1096	}	1500	}
1097		1501
1098	=back	1502	=back
1099
1100		1503
1101	=head3 cf::map	1504	=head3 cf::map
1102		1505
1103	=over 4	1506	=over 4
1104		1507
…		…
1107	package cf::map;	1510	package cf::map;
1108		1511
1109	use Fcntl;	1512	use Fcntl;
1110	use Coro::AIO;	1513	use Coro::AIO;
1111		1514
		1515	use overload
		1516	'""' => \&as_string,
		1517	fallback => 1;
		1518
1112	our $MAX_RESET = 3600;	1519	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1520	our $DEFAULT_RESET = 3000;
1114		1521
1115	sub generate_random_map {	1522	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1523	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1524	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1525	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1526	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1527	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1528	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1529	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1530	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1531	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1532	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1533	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1534	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1535	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(cf::region::find $rmp->{region})	1536	(cf::region::find $rmp->{region}), $rmp->{custom}
		1537	)
		1538	}
		1539
		1540	=item cf::map->register ($regex, $prio)
		1541
		1542	Register a handler for the map path matching the given regex at the
		1543	givne priority (higher is better, built-in handlers have priority 0, the
		1544	default).
		1545
		1546	=cut
		1547
		1548	sub register {
		1549	my (undef, $regex, $prio) = @_;
		1550	my $pkg = caller;
		1551
		1552	no strict;
		1553	push @{"$pkg\::ISA"}, __PACKAGE__;
		1554
		1555	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1556	}
		1557
		1558	# also paths starting with '/'
		1559	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1560
		1561	sub thawer_merge {
		1562	my ($self, $merge) = @_;
		1563
		1564	# we have to keep some variables in memory intact
		1565	local $self->{path};
		1566	local $self->{load_path};
		1567
		1568	$self->SUPER::thawer_merge ($merge);
		1569	}
		1570
		1571	sub normalise {
		1572	my ($path, $base) = @_;
		1573
		1574	$path = "$path"; # make sure its a string
		1575
		1576	$path =~ s/\.map$//;
		1577
		1578	# map plan:
		1579	#
		1580	# /! non-realised random map exit (special hack!)
		1581	# {... are special paths that are not being touched
		1582	# ?xxx/... are special absolute paths
		1583	# ?random/... random maps
		1584	# /... normal maps
		1585	# ~user/... per-player map of a specific user
		1586
		1587	$path =~ s/$PATH_SEP/\//go;
		1588
		1589	# treat it as relative path if it starts with
		1590	# something that looks reasonable
		1591	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1592	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1593
		1594	$base =~ s{[^/]+/?$}{};
		1595	$path = "$base/$path";
		1596	}
		1597
		1598	for ($path) {
		1599	redo if s{//}{/};
		1600	redo if s{/\.?/}{/};
		1601	redo if s{/[^/]+/\.\./}{/};
		1602	}
		1603
		1604	$path
		1605	}
		1606
		1607	sub new_from_path {
		1608	my (undef, $path, $base) = @_;
		1609
		1610	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1611
		1612	$path = normalise $path, $base;
		1613
		1614	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1615	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1616	my $self = bless cf::map::new, $pkg;
		1617	$self->{path} = $path; $self->path ($path);
		1618	$self->init; # pass $1 etc.
		1619	return $self;
		1620	}
		1621	}
		1622
		1623	Carp::carp "unable to resolve path '$path' (base '$base').";
		1624	()
		1625	}
		1626
		1627	sub init {
		1628	my ($self) = @_;
		1629
		1630	$self
		1631	}
		1632
		1633	sub as_string {
		1634	my ($self) = @_;
		1635
		1636	"$self->{path}"
		1637	}
		1638
		1639	# the displayed name, this is a one way mapping
		1640	sub visible_name {
		1641	&as_string
		1642	}
		1643
		1644	# the original (read-only) location
		1645	sub load_path {
		1646	my ($self) = @_;
		1647
		1648	"$MAPDIR/$self->{path}.map"
		1649	}
		1650
		1651	# the temporary/swap location
		1652	sub save_path {
		1653	my ($self) = @_;
		1654
		1655	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1656	"$TMPDIR/$path.map"
		1657	}
		1658
		1659	# the unique path, undef == no special unique path
		1660	sub uniq_path {
		1661	my ($self) = @_;
		1662
		1663	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1664	"$UNIQUEDIR/$path"
1132	}	1665	}
1133		1666
1134	# and all this just because we cannot iterate over	1667	# and all this just because we cannot iterate over
1135	# all maps in C++...	1668	# all maps in C++...
1136	sub change_all_map_light {	1669	sub change_all_map_light {
…		…
1138		1671
1139	$_->change_map_light ($change)	1672	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1673	for grep $_->outdoor, values %cf::MAP;
1141	}	1674	}
1142		1675
		1676	sub decay_objects {
		1677	my ($self) = @_;
		1678
		1679	return if $self->{deny_reset};
		1680
		1681	$self->do_decay_objects;
		1682	}
		1683
		1684	sub unlink_save {
		1685	my ($self) = @_;
		1686
		1687	utf8::encode (my $save = $self->save_path);
		1688	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1690	}
		1691
1143	sub try_load_header($) {	1692	sub load_header_from($) {
1144	my ($path) = @_;	1693	my ($self, $path) = @_;
1145		1694
1146	utf8::encode $path;	1695	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1696	#aio_open $path, O_RDONLY, 0
		1697	# or return;
		1698
		1699	$self->_load_header ($path)
1148	or return;	1700	or return;
1149		1701
1150	my $map = cf::map::new	1702	$self->{load_path} = $path;
		1703
		1704	1
		1705	}
		1706
		1707	sub load_header_orig {
		1708	my ($self) = @_;
		1709
		1710	$self->load_header_from ($self->load_path)
		1711	}
		1712
		1713	sub load_header_temp {
		1714	my ($self) = @_;
		1715
		1716	$self->load_header_from ($self->save_path)
		1717	}
		1718
		1719	sub prepare_temp {
		1720	my ($self) = @_;
		1721
		1722	$self->last_access ((delete $self->{last_access})
		1723	|| $cf::RUNTIME); #d#
		1724	# safety
		1725	$self->{instantiate_time} = $cf::RUNTIME
		1726	if $self->{instantiate_time} > $cf::RUNTIME;
		1727	}
		1728
		1729	sub prepare_orig {
		1730	my ($self) = @_;
		1731
		1732	$self->{load_original} = 1;
		1733	$self->{instantiate_time} = $cf::RUNTIME;
		1734	$self->last_access ($cf::RUNTIME);
		1735	$self->instantiate;
		1736	}
		1737
		1738	sub load_header {
		1739	my ($self) = @_;
		1740
		1741	if ($self->load_header_temp) {
		1742	$self->prepare_temp;
		1743	} else {
		1744	$self->load_header_orig
1151	or return;	1745	or return;
		1746	$self->prepare_orig;
		1747	}
1152		1748
1153	# for better error messages only, will be overwritten	1749	$self->{deny_reset} = 1
1154	$map->path ($path);	1750	if $self->no_reset;
1155		1751
1156	$map->load_header ($path)	1752	$self->default_region (cf::region::find_by_path $self->{path})
1157	or return;	1753	unless $self->default_region;
1158		1754
1159	$map->{load_path} = $path;	1755	1
1160
1161	$map
1162	}	1756	}
1163		1757
1164	sub find;	1758	sub find;
1165	sub find {	1759	sub find {
1166	my ($path, $origin) = @_;	1760	my ($path, $origin) = @_;
1167		1761
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1762	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1763
1173	cf::lock_wait "map_find:$key";	1764	cf::lock_wait "map_find:$path";
1174		1765
1175	$cf::MAP{$key} || do {	1766	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1767	my $guard = cf::lock_acquire "map_find:$path";
1177		1768	my $map = new_from_path cf::map $path
1178	# do it the slow way
1179	my $map = try_load_header $path->save_path;
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	1769	or return;
1197		1770
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	1771	$map->{last_save} = $cf::RUNTIME;
1210		1772
1211	Coro::cede;	1773	$map->load_header
		1774	or return;
1212		1775
1213	if ($map->should_reset) {	1776	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1777	# doing this can freeze the server in a sync job, obviously
		1778	#$cf::WAIT_FOR_TICK->wait;
1214	$map->reset;	1779	$map->reset;
1215	undef $guard;	1780	undef $guard;
1216	$map = find $path	1781	return find $path;
1217	or return;
1218	}	1782	}
1219		1783
1220	$cf::MAP{$key} = $map	1784	$cf::MAP{$path} = $map
1221	}	1785	}
1222	}	1786	}
		1787
		1788	sub pre_load { }
		1789	sub post_load { }
1223		1790
1224	sub load {	1791	sub load {
1225	my ($self) = @_;	1792	my ($self) = @_;
1226		1793
		1794	local $self->{deny_reset} = 1; # loading can take a long time
		1795
1227	my $path = $self->{path};	1796	my $path = $self->{path};
		1797
		1798	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1799	my $guard = cf::lock_acquire "map_load:$path";
1229		1800
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1801	return if $self->in_memory != cf::MAP_SWAPPED;
1231		1802
1232	$self->in_memory (cf::MAP_LOADING);	1803	$self->in_memory (cf::MAP_LOADING);
1233		1804
1234	$self->alloc;	1805	$self->alloc;
		1806
		1807	$self->pre_load;
		1808	Coro::cede;
		1809
1235	$self->load_objects ($self->{load_path}, 1)	1810	$self->_load_objects ($self->{load_path}, 1)
1236	or return;	1811	or return;
1237		1812
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1813	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1814	if delete $self->{load_original};
1240		1815
1241	if (my $uniq = $path->uniq_path) {	1816	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1817	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1818	if (aio_open $uniq, O_RDONLY, 0) {
1244	$self->clear_unique_items;	1819	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1820	$self->_load_objects ($uniq, 0);
1246	}	1821	}
1247	}	1822	}
1248		1823
1249	Coro::cede;	1824	Coro::cede;
1250
1251	# now do the right thing for maps	1825	# now do the right thing for maps
1252	$self->link_multipart_objects;	1826	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	1827	$self->difficulty ($self->estimate_difficulty)
1263	unless $self->difficulty;	1828	unless $self->difficulty;
		1829	Coro::cede;
		1830
		1831	unless ($self->{deny_activate}) {
		1832	$self->decay_objects;
		1833	$self->fix_auto_apply;
		1834	$self->update_buttons;
		1835	Coro::cede;
		1836	$self->set_darkness_map;
		1837	Coro::cede;
1264	$self->activate;	1838	$self->activate;
1265	}	1839	}
1266		1840
1267	Coro::cede;
1268
1269	$self->in_memory (cf::MAP_IN_MEMORY);	1841	$self->in_memory (cf::MAP_IN_MEMORY);
		1842	}
		1843
		1844	$self->post_load;
		1845	}
		1846
		1847	sub customise_for {
		1848	my ($self, $ob) = @_;
		1849
		1850	return find "~" . $ob->name . "/" . $self->{path}
		1851	if $self->per_player;
		1852
		1853	# return find "?party/" . $ob->name . "/" . $self->{path}
		1854	# if $self->per_party;
		1855
		1856	$self
		1857	}
		1858
		1859	# find and load all maps in the 3x3 area around a map
		1860	sub load_diag {
		1861	my ($map) = @_;
		1862
		1863	my @diag; # diagonal neighbours
		1864
		1865	for (0 .. 3) {
		1866	my $neigh = $map->tile_path ($_)
		1867	or next;
		1868	$neigh = find $neigh, $map
		1869	or next;
		1870	$neigh->load;
		1871
		1872	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1873	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1874	}
		1875
		1876	for (@diag) {
		1877	my $neigh = find @$_
		1878	or next;
		1879	$neigh->load;
		1880	}
1270	}	1881	}
1271		1882
1272	sub find_sync {	1883	sub find_sync {
1273	my ($path, $origin) = @_;	1884	my ($path, $origin) = @_;
1274		1885
1275	cf::sync_job {	1886	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	1887	}
1280		1888
1281	sub do_load_sync {	1889	sub do_load_sync {
1282	my ($map) = @_;	1890	my ($map) = @_;
1283		1891
1284	cf::sync_job { $map->load };	1892	cf::sync_job { $map->load };
1285	}	1893	}
1286		1894
		1895	our %MAP_PREFETCH;
		1896	our $MAP_PREFETCHER = undef;
		1897
		1898	sub find_async {
		1899	my ($path, $origin) = @_;
		1900
		1901	$path = normalise $path, $origin && $origin->{path};
		1902
		1903	if (my $map = $cf::MAP{$path}) {
		1904	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1905	}
		1906
		1907	undef $MAP_PREFETCH{$path};
		1908	$MAP_PREFETCHER ||= cf::async {
		1909	while (%MAP_PREFETCH) {
		1910	for my $path (keys %MAP_PREFETCH) {
		1911	my $map = find $path
		1912	or next;
		1913	$map->load;
		1914
		1915	delete $MAP_PREFETCH{$path};
		1916	}
		1917	}
		1918	undef $MAP_PREFETCHER;
		1919	};
		1920	$MAP_PREFETCHER->prio (6);
		1921
		1922	()
		1923	}
		1924
1287	sub save {	1925	sub save {
1288	my ($self) = @_;	1926	my ($self) = @_;
1289		1927
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	1928	my $lock = cf::lock_acquire "map_data:" . $self->path;
1291		1929
1292	$self->{last_save} = $cf::RUNTIME;	1930	$self->{last_save} = $cf::RUNTIME;
1293		1931
1294	return unless $self->dirty;	1932	return unless $self->dirty;
1295		1933
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1934	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1935	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1936
1299	$self->{load_path} = $save;	1937	$self->{load_path} = $save;
1300		1938
1301	return if $self->{deny_save};	1939	return if $self->{deny_save};
1302		1940
1303	local $self->{last_access} = $self->last_access;#d#	1941	local $self->{last_access} = $self->last_access;#d#
1304		1942
		1943	cf::async {
		1944	$_->contr->save for $self->players;
		1945	};
		1946
1305	if ($uniq) {	1947	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1948	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1949	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1950	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1951	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	1952	}
1311	}	1953	}
1312		1954
1313	sub swap_out {	1955	sub swap_out {
1314	my ($self) = @_;	1956	my ($self) = @_;
…		…
1328		1970
1329	sub reset_at {	1971	sub reset_at {
1330	my ($self) = @_;	1972	my ($self) = @_;
1331		1973
1332	# TODO: safety, remove and allow resettable per-player maps	1974	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	1975	return 1e99 if $self->{deny_reset};
1335		1976
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1977	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1978	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		1979
…		…
1343	my ($self) = @_;	1984	my ($self) = @_;
1344		1985
1345	$self->reset_at <= $cf::RUNTIME	1986	$self->reset_at <= $cf::RUNTIME
1346	}	1987	}
1347		1988
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	1989	sub reset {
1370	my ($self) = @_;	1990	my ($self) = @_;
1371		1991
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	1992	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		1993
1374	return if $self->players;	1994	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		1995
1377	warn "resetting map ", $self->path;#d#	1996	warn "resetting map ", $self->path;
		1997
		1998	$self->in_memory (cf::MAP_SWAPPED);
		1999
		2000	# need to save uniques path
		2001	unless ($self->{deny_save}) {
		2002	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2003
		2004	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2005	if $uniq;
		2006	}
1378		2007
1379	delete $cf::MAP{$self->path};	2008	delete $cf::MAP{$self->path};
		2009
		2010	$self->clear;
1380		2011
1381	$_->clear_links_to ($self) for values %cf::MAP;	2012	$_->clear_links_to ($self) for values %cf::MAP;
1382		2013
1383	$self->unlink_save;	2014	$self->unlink_save;
1384	$self->destroy;	2015	$self->destroy;
…		…
1387	my $nuke_counter = "aaaa";	2018	my $nuke_counter = "aaaa";
1388		2019
1389	sub nuke {	2020	sub nuke {
1390	my ($self) = @_;	2021	my ($self) = @_;
1391		2022
		2023	delete $cf::MAP{$self->path};
		2024
		2025	$self->unlink_save;
		2026
		2027	bless $self, "cf::map";
		2028	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	2029	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2030	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2031	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2032
		2033	$cf::MAP{$self->path} = $self;
		2034
1395	$self->reset; # polite request, might not happen	2035	$self->reset; # polite request, might not happen
1396	}	2036	}
1397		2037
1398	sub customise_for {	2038	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2039
1401	if ($map->per_player) {	2040	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2041	maps. May block.
		2042
		2043	=cut
		2044
		2045	sub tmp_maps() {
1403	}	2046	[
1404		2047	map {
1405	$map	2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise $_
		2051	: ()
		2052	} @{ aio_readdir $TMPDIR or [] }
		2053	]
1406	}	2054	}
1407		2055
1408	sub emergency_save {	2056	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2057
1411	warn "enter emergency map save\n";	2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	random maps. May block.
1412		2060
1413	cf::sync_job {	2061	=cut
1414	warn "begin emergency map save\n";
1415	$_->save for values %cf::MAP;
1416	};
1417		2062
1418	warn "end emergency map save\n";	2063	sub random_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise "?random/$_"
		2069	: ()
		2070	} @{ aio_readdir $RANDOMDIR or [] }
		2071	]
		2072	}
		2073
		2074	=item cf::map::unique_maps
		2075
		2076	Returns an arrayref of paths of all shared maps that have
		2077	instantiated unique items. May block.
		2078
		2079	=cut
		2080
		2081	sub unique_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise $_
		2087	: ()
		2088	} @{ aio_readdir $UNIQUEDIR or [] }
		2089	]
1419	}	2090	}
1420		2091
1421	package cf;	2092	package cf;
1422		2093
1423	=back	2094	=back
1424		2095
		2096	=head3 cf::object
		2097
		2098	=cut
		2099
		2100	package cf::object;
		2101
		2102	=over 4
		2103
		2104	=item $ob->inv_recursive
		2105
		2106	Returns the inventory of the object _and_ their inventories, recursively.
		2107
		2108	=cut
		2109
		2110	sub inv_recursive_;
		2111	sub inv_recursive_ {
		2112	map { $_, inv_recursive_ $_->inv } @_
		2113	}
		2114
		2115	sub inv_recursive {
		2116	inv_recursive_ inv $_[0]
		2117	}
		2118
		2119	package cf;
		2120
		2121	=back
1425		2122
1426	=head3 cf::object::player	2123	=head3 cf::object::player
1427		2124
1428	=over 4	2125	=over 4
1429		2126
…		…
1443		2140
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2141	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2142
1446	if ($self->{record_replies}) {	2143	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2144	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2145
1448	} else {	2146	} else {
		2147	my $pl = $self->contr;
		2148
		2149	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2150	my $diag = $pl->{npc_dialog};
		2151	$diag->{pl}->ext_reply (
		2152	$diag->{id},
		2153	msgtype => "reply",
		2154	msg => $diag->{pl}->expand_cfpod ($msg),
		2155	add_topics => []
		2156	);
		2157
		2158	} else {
1449	$msg = $npc->name . " says: $msg" if $npc;	2159	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2160	$self->message ($msg, $flags);
		2161	}
1451	}	2162	}
1452	}	2163	}
1453		2164
1454	=item $player_object->may ("access")	2165	=item $player_object->may ("access")
1455		2166
…		…
1469		2180
1470	=item $player_object->enter_link	2181	=item $player_object->enter_link
1471		2182
1472	Freezes the player and moves him/her to a special map (C<{link}>).	2183	Freezes the player and moves him/her to a special map (C<{link}>).
1473		2184
1474	The player should be reaosnably safe there for short amounts of time. You	2185	The player should be reasonably safe there for short amounts of time. You
1475	I<MUST> call C<leave_link> as soon as possible, though.	2186	I<MUST> call C<leave_link> as soon as possible, though.
1476		2187
		2188	Will never block.
		2189
1477	=item $player_object->leave_link ($map, $x, $y)	2190	=item $player_object->leave_link ($map, $x, $y)
1478		2191
1479	Moves the player out of the specila link map onto the given map. If the	2192	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2193	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2194	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2195	fails, to the emergency map position.
1483		2196
1484	Might block.	2197	Might block.
1485		2198
1486	=cut	2199	=cut
		2200
		2201	sub link_map {
		2202	unless ($LINK_MAP) {
		2203	$LINK_MAP = cf::map::find "{link}"
		2204	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2205	$LINK_MAP->load;
		2206	}
		2207
		2208	$LINK_MAP
		2209	}
1487		2210
1488	sub cf::object::player::enter_link {	2211	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2212	my ($self) = @_;
1490		2213
1491	$self->deactivate_recursive;	2214	$self->deactivate_recursive;
1492		2215
1493	return if $self->map == $LINK_MAP;	2216	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2217
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2218	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2219	if $self->map && $self->map->{path} ne "{link}";
1497		2220
1498	$self->enter_map ($LINK_MAP, 20, 20);	2221	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	2222	}
1500		2223
1501	sub cf::object::player::leave_link {	2224	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2225	my ($self, $map, $x, $y) = @_;
		2226
		2227	return unless $self->contr->active;
1503		2228
1504	my $link_pos = delete $self->{_link_pos};	2229	my $link_pos = delete $self->{_link_pos};
1505		2230
1506	unless ($map) {	2231	unless ($map) {
1507	# restore original map position	2232	# restore original map position
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	2246	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2247	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2248	if $x <=0 && $y <= 0;
1524		2249
1525	$map->load;	2250	$map->load;
		2251	$map->load_diag;
1526		2252
		2253	return unless $self->contr->active;
1527	$self->activate_recursive;	2254	$self->activate_recursive;
		2255
		2256	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1528	$self->enter_map ($map, $x, $y);	2257	$self->enter_map ($map, $x, $y);
1529	}	2258	}
1530		2259
1531	cf::player->attach (
1532	on_logout => sub {
1533	my ($pl) = @_;
1534
1535	# abort map switching before logout
1536	if ($pl->ob->{_link_pos}) {
1537	cf::sync_job {
1538	$pl->ob->leave_link
1539	};
1540	}
1541	},
1542	on_login => sub {
1543	my ($pl) = @_;
1544
1545	# try to abort aborted map switching on player login :)
1546	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {
1548
1549	$pl->ob->enter_link;
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559
1560	=item $player_object->goto ($path, $x, $y)	2260	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1561		2261
		2262	Moves the player to the given map-path and coordinates by first freezing
		2263	her, loading and preparing them map, calling the provided $check callback
		2264	that has to return the map if sucecssful, and then unfreezes the player on
		2265	the new (success) or old (failed) map position.
		2266
1562	=cut	2267	=cut
		2268
		2269	our $GOTOGEN;
1563		2270
1564	sub cf::object::player::goto {	2271	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2272	my ($self, $path, $x, $y, $check) = @_;
		2273
		2274	# do generation counting so two concurrent goto's will be executed in-order
		2275	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2276
1567	$self->enter_link;	2277	$self->enter_link;
1568		2278
1569	(Coro::async_pool {	2279	(async {
1570	$path = new cf::path $path;	2280	my $map = eval {
1571
1572	my $map = cf::map::find $path->as_string;	2281	my $map = cf::map::find $path;
		2282
		2283	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2284	$map = $map->customise_for ($self);
1574		2285	$map = $check->($map) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2286	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2287	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2288	}
1579		2289
		2290	$map
		2291	};
		2292
		2293	if ($@) {
		2294	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2295	LOG llevError | logBacktrace, Carp::longmess $@;
		2296	}
		2297
		2298	if ($gen == $self->{_goto_generation}) {
		2299	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2300	$self->leave_link ($map, $x, $y);
		2301	}
1581	})->prio (1);	2302	})->prio (1);
1582	}	2303	}
1583		2304
1584	=item $player_object->enter_exit ($exit_object)	2305	=item $player_object->enter_exit ($exit_object)
1585		2306
…		…
1587		2308
1588	sub parse_random_map_params {	2309	sub parse_random_map_params {
1589	my ($spec) = @_;	2310	my ($spec) = @_;
1590		2311
1591	my $rmp = { # defaults	2312	my $rmp = { # defaults
1592	xsize => 10,	2313	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2314	ysize => (cf::rndm 15, 40),
		2315	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2316	#layout => string,
1594	};	2317	};
1595		2318
1596	for (split /\n/, $spec) {	2319	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2320	my ($k, $v) = split /\s+/, $_, 2;
1598		2321
…		…
1602	$rmp	2325	$rmp
1603	}	2326	}
1604		2327
1605	sub prepare_random_map {	2328	sub prepare_random_map {
1606	my ($exit) = @_;	2329	my ($exit) = @_;
		2330
		2331	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		2332
1608	# all this does is basically replace the /! path by	2333	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	2334	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	2335	# that depends on the exit object
1611		2336
1612	my $rmp = parse_random_map_params $exit->msg;	2337	my $rmp = parse_random_map_params $exit->msg;
1613		2338
1614	if ($exit->map) {	2339	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2340	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2341	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2342	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2343	$rmp->{origin_y} = $exit->y;
1619	}	2344	}
1620		2345
1621	$rmp->{random_seed} ||= $exit->random_seed;	2346	$rmp->{random_seed} ||= $exit->random_seed;
1622		2347
1623	my $data = cf::to_json $rmp;	2348	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	2349	my $md5 = Digest::MD5::md5_hex $data;
		2350	my $meta = "$RANDOMDIR/$md5.meta";
1625		2351
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2352	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2353	aio_write $fh, 0, (length $data), $data, 0;
		2354	undef $fh;
		2355	aio_rename "$meta~", $meta;
1628		2356
1629	$exit->slaying ("?random/$md5");	2357	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2358	$exit->msg (undef);
1631	}	2359	}
1632	}	2360	}
…		…
1634	sub cf::object::player::enter_exit {	2362	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2363	my ($self, $exit) = @_;
1636		2364
1637	return unless $self->type == cf::PLAYER;	2365	return unless $self->type == cf::PLAYER;
1638		2366
		2367	if ($exit->slaying eq "/!") {
		2368	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2369	# the problem is that $exit might not survive long enough
		2370	# so it needs to be done right now, right here
		2371	cf::sync_job { prepare_random_map $exit };
		2372	}
		2373
		2374	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2375	my $hp = $exit->stats->hp;
		2376	my $sp = $exit->stats->sp;
		2377
1639	$self->enter_link;	2378	$self->enter_link;
1640		2379
1641	(Coro::async_pool {	2380	# if exit is damned, update players death & WoR home-position
		2381	$self->contr->savebed ($slaying, $hp, $sp)
		2382	if $exit->flag (FLAG_DAMNED);
		2383
		2384	(async {
1642	$self->deactivate_recursive; # just to be sure	2385	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	2386	unless (eval {
1644	prepare_random_map $exit	2387	$self->goto ($slaying, $hp, $sp);
1645	if $exit->slaying eq "/!";
1646
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1649		2388
1650	1;	2389	1;
1651	}) {	2390	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2391	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "I'll try to bring you back to the map you were before. "	2392	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2393	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2394	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2395
1657	warn "ERROR in enter_exit: $@";	2396	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	2397	$self->leave_link;
1659	}	2398	}
1660	})->prio (1);	2399	})->prio (1);
…		…
1673		2412
1674	sub cf::client::send_drawinfo {	2413	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2414	my ($self, $text, $flags) = @_;
1676		2415
1677	utf8::encode $text;	2416	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2417	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2418	}
1680		2419
		2420	=item $client->send_msg ($color, $type, $msg, [extra...])
		2421
		2422	Send a drawinfo or msg packet to the client, formatting the msg for the
		2423	client if neccessary. C<$type> should be a string identifying the type of
		2424	the message, with C<log> being the default. If C<$color> is negative, suppress
		2425	the message unless the client supports the msg packet.
		2426
		2427	=cut
		2428
		2429	sub cf::client::send_msg {
		2430	my ($self, $color, $type, $msg, @extra) = @_;
		2431
		2432	$msg = $self->pl->expand_cfpod ($msg);
		2433
		2434	return unless @extra || length $msg;
		2435
		2436	if ($self->can_msg) {
		2437	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2438	} else {
		2439	# replace some tags by gcfclient-compatible ones
		2440	for ($msg) {
		2441	1 while
		2442	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2443	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2444	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2445	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2446	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2447	}
		2448
		2449	if ($color >= 0) {
		2450	if (0 && $msg =~ /\[/) {
		2451	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2452	} else {
		2453	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2454	$self->send_packet ("drawinfo $color $msg")
		2455	}
		2456	}
		2457	}
		2458	}
		2459
		2460	=item $client->ext_event ($type, %msg)
		2461
		2462	Sends an ext event to the client.
		2463
		2464	=cut
		2465
		2466	sub cf::client::ext_event($$%) {
		2467	my ($self, $type, %msg) = @_;
		2468
		2469	$msg{msgtype} = "event_$type";
		2470	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2471	}
1681		2472
1682	=item $success = $client->query ($flags, "text", \&cb)	2473	=item $success = $client->query ($flags, "text", \&cb)
1683		2474
1684	Queues a query to the client, calling the given callback with	2475	Queues a query to the client, calling the given callback with
1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2476	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2477	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		2478
1688	Queries can fail, so check the return code. Or don't, as queries will become	2479	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	2480	become reliable at some point in the future.
1690		2481
1691	=cut	2482	=cut
1692		2483
1693	sub cf::client::query {	2484	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	2485	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	2493	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2494	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		2495
1705	$self->send_packet ($self->{query_queue}[0][0])	2496	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	2497	if @{ $self->{query_queue} } == 1;
		2498
		2499	1
1707	}	2500	}
1708		2501
1709	cf::client->attach (	2502	cf::client->attach (
		2503	on_connect => sub {
		2504	my ($ns) = @_;
		2505
		2506	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2507	},
1710	on_reply => sub {	2508	on_reply => sub {
1711	my ($ns, $msg) = @_;	2509	my ($ns, $msg) = @_;
1712		2510
1713	# this weird shuffling is so that direct followup queries	2511	# this weird shuffling is so that direct followup queries
1714	# get handled first	2512	# get handled first
1715	my $queue = delete $ns->{query_queue}	2513	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2514	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2515
1718	(shift @$queue)->[1]->($msg);	2516	(shift @$queue)->[1]->($msg);
		2517	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2518
1720	push @{ $ns->{query_queue} }, @$queue;	2519	push @{ $ns->{query_queue} }, @$queue;
1721		2520
1722	if (@{ $ns->{query_queue} } == @$queue) {	2521	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2522	if (@$queue) {
…		…
1725	} else {	2524	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2525	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	2526	}
1728	}	2527	}
1729	},	2528	},
		2529	on_exticmd => sub {
		2530	my ($ns, $buf) = @_;
		2531
		2532	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2533
		2534	if (ref $msg) {
		2535	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2536	if (my %reply = $cb->($ns, $msg)) {
		2537	$reply{msgid} = $msg->{msgid};
		2538	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2539	}
		2540	}
		2541	} else {
		2542	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2543	}
		2544
		2545	cf::override;
		2546	},
1730	);	2547	);
1731		2548
1732	=item $client->coro (\&cb)	2549	=item $client->async (\&cb)
1733		2550
1734	Create a new coroutine, running the specified callback. The coroutine will	2551	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	2552	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	2553	or loss of connection).
1737		2554
1738	=cut	2555	=cut
1739		2556
1740	sub cf::client::coro {	2557	sub cf::client::async {
1741	my ($self, $cb) = @_;	2558	my ($self, $cb) = @_;
1742		2559
1743	my $coro = &Coro::async_pool ($cb);	2560	my $coro = &Coro::async ($cb);
1744		2561
1745	$coro->on_destroy (sub {	2562	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2563	delete $self->{_coro}{$coro+0};
1747	});	2564	});
1748		2565
…		…
1781		2598
1782	# here we export the classes and methods available to script code	2599	# here we export the classes and methods available to script code
1783		2600
1784	=pod	2601	=pod
1785		2602
1786	The following fucntions and emthods are available within a safe environment:	2603	The following functions and methods are available within a safe environment:
1787		2604
1788	cf::object contr pay_amount pay_player map	2605	cf::object
		2606	contr pay_amount pay_player map x y force_find force_add
		2607	insert remove
		2608
1789	cf::object::player player	2609	cf::object::player
1790	cf::player peaceful	2610	player
1791	cf::map trigger	2611
		2612	cf::player
		2613	peaceful
		2614
		2615	cf::map
		2616	trigger
1792		2617
1793	=cut	2618	=cut
1794		2619
1795	for (	2620	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	2621	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2622	insert remove)],
1797	["cf::object::player" => qw(player)],	2623	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	2624	["cf::player" => qw(peaceful)],
1799	["cf::map" => qw(trigger)],	2625	["cf::map" => qw(trigger)],
1800	) {	2626	) {
1801	no strict 'refs';	2627	no strict 'refs';
…		…
1872	=back	2698	=back
1873		2699
1874	=cut	2700	=cut
1875		2701
1876	#############################################################################	2702	#############################################################################
		2703	# the server's init and main functions
1877		2704
1878	=head2 EXTENSION DATABASE SUPPORT	2705	sub load_facedata($) {
		2706	my ($path) = @_;
1879		2707
1880	Crossfire maintains a very simple database for extension use. It can	2708	warn "loading facedata from $path\n";
1881	currently store anything that can be serialised using Storable, which
1882	excludes objects.
1883		2709
1884	The parameter C<$family> should best start with the name of the extension	2710	my $facedata;
1885	using it, it should be unique.	2711	0 < aio_load $path, $facedata
		2712	or die "$path: $!";
1886		2713
1887	=over 4	2714	$facedata = Coro::Storable::thaw $facedata;
1888		2715
1889	=item $hashref = cf::db_get $family	2716	$facedata->{version} == 2
		2717	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		2718
1891	Return a hashref for use by the extension C<$family>, which can be
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894
1895	=item $value = cf::db_get $family => $key
1896
1897	Returns a single value from the database
1898
1899	=item cf::db_put $family => $hashref
1900
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}	2719	{
		2720	my $faces = $facedata->{faceinfo};
1927		2721
1928	my $pid;	2722	while (my ($face, $info) = each %$faces) {
1929		2723	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1930	sub db_save() {	2724	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1931	waitpid $pid, 0 if $pid;	2725	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1932	if (0 == ($pid = fork)) {	2726	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1933	$DB->{_meta}{version} = 1;	2727	Coro::cede;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});
1950
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}
1955
1956	sub db_get($;$) {
1957	@_ >= 2
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961
1962	sub db_put($$;$) {
1963	if (@_ >= 3) {
1964	$DB->{$_[0]}{$_[1]} = $_[2];
1965	} else {
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970
1971	cf::global->attach (
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	2728	}
1976	);
1977	}
1978		2729
1979	#############################################################################	2730	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	2731	next unless $info->{smooth};
		2732	my $idx = cf::face::find $face
		2733	or next;
		2734	if (my $smooth = cf::face::find $info->{smooth}) {
		2735	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2736	} else {
		2737	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2738	}
		2739	Coro::cede;
		2740	}
		2741	}
		2742
		2743	{
		2744	my $anims = $facedata->{animinfo};
		2745
		2746	while (my ($anim, $info) = each %$anims) {
		2747	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2748	Coro::cede;
		2749	}
		2750
		2751	cf::anim::invalidate_all; # d'oh
		2752	}
		2753
		2754	1
		2755	}
		2756
		2757	sub reload_regions {
		2758	load_resource_file "$MAPDIR/regions"
		2759	or die "unable to load regions file\n";
		2760	}
		2761
		2762	sub reload_facedata {
		2763	load_facedata "$DATADIR/facedata"
		2764	or die "unable to load facedata\n";
		2765	}
		2766
		2767	sub reload_archetypes {
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	#d# NEED to laod twice to resolve forward references
		2771	# this really needs to be done in an extra post-pass
		2772	# (which needs to be synchronous, so solve it differently)
		2773	load_resource_file "$DATADIR/archetypes"
		2774	or die "unable to load archetypes\n";
		2775	}
		2776
		2777	sub reload_treasures {
		2778	load_resource_file "$DATADIR/treasures"
		2779	or die "unable to load treasurelists\n";
		2780	}
		2781
		2782	sub reload_resources {
		2783	warn "reloading resource files...\n";
		2784
		2785	reload_regions;
		2786	reload_facedata;
		2787	#reload_archetypes;#d#
		2788	reload_archetypes;
		2789	reload_treasures;
		2790
		2791	warn "finished reloading resource files\n";
		2792	}
		2793
		2794	sub init {
		2795	reload_resources;
		2796	}
1981		2797
1982	sub cfg_load {	2798	sub cfg_load {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	2799	open my $fh, "<:utf8", "$CONFDIR/config"
1984	or return;	2800	or return;
1985		2801
1986	local $/;	2802	local $/;
1987	*CFG = YAML::Syck::Load <$fh>;	2803	*CFG = YAML::Syck::Load <$fh>;
1988		2804
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2807	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2808	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		2809
1994	if (exists $CFG{mlockall}) {	2810	if (exists $CFG{mlockall}) {
1995	eval {	2811	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	2812	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	2813	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	2814	};
1999	warn $@ if $@;	2815	warn $@ if $@;
2000	}	2816	}
2001	}	2817	}
2002		2818
2003	sub main {	2819	sub main {
2004	# we must not ever block the main coroutine	2820	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	2821	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2822	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	2823	(async {
		2824	Event::one_event;
		2825	})->prio (Coro::PRIO_MAX);
2008	};	2826	};
2009		2827
2010	cfg_load;	2828	cfg_load;
2011	db_load;	2829	db_init;
2012	load_extensions;	2830	load_extensions;
		2831
		2832	$TICK_WATCHER->start;
2013	Event::loop;	2833	Event::loop;
2014	}	2834	}
2015		2835
2016	#############################################################################	2836	#############################################################################
2017	# initialisation	2837	# initialisation and cleanup
2018		2838
		2839	# install some emergency cleanup handlers
		2840	BEGIN {
		2841	for my $signal (qw(INT HUP TERM)) {
		2842	Event->signal (
		2843	reentrant => 0,
		2844	data => WF_AUTOCANCEL,
		2845	signal => $signal,
		2846	prio => 0,
		2847	cb => sub {
		2848	cf::cleanup "SIG$signal";
		2849	},
		2850	);
		2851	}
		2852	}
		2853
		2854	sub write_runtime {
		2855	my $runtime = "$LOCALDIR/runtime";
		2856
		2857	# first touch the runtime file to show we are still running:
		2858	# the fsync below can take a very very long time.
		2859
		2860	IO::AIO::aio_utime $runtime, undef, undef;
		2861
		2862	my $guard = cf::lock_acquire "write_runtime";
		2863
		2864	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2865	or return;
		2866
		2867	my $value = $cf::RUNTIME + 90 + 10;
		2868	# 10 is the runtime save interval, for a monotonic clock
		2869	# 60 allows for the watchdog to kill the server.
		2870
		2871	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2872	and return;
		2873
		2874	# always fsync - this file is important
		2875	aio_fsync $fh
		2876	and return;
		2877
		2878	# touch it again to show we are up-to-date
		2879	aio_utime $fh, undef, undef;
		2880
		2881	close $fh
		2882	or return;
		2883
		2884	aio_rename "$runtime~", $runtime
		2885	and return;
		2886
		2887	warn "runtime file written.\n";
		2888
		2889	1
		2890	}
		2891
		2892	sub emergency_save() {
		2893	my $freeze_guard = cf::freeze_mainloop;
		2894
		2895	warn "enter emergency perl save\n";
		2896
		2897	cf::sync_job {
		2898	# use a peculiar iteration method to avoid tripping on perl
		2899	# refcount bugs in for. also avoids problems with players
		2900	# and maps saved/destroyed asynchronously.
		2901	warn "begin emergency player save\n";
		2902	for my $login (keys %cf::PLAYER) {
		2903	my $pl = $cf::PLAYER{$login} or next;
		2904	$pl->valid or next;
		2905	$pl->save;
		2906	}
		2907	warn "end emergency player save\n";
		2908
		2909	warn "begin emergency map save\n";
		2910	for my $path (keys %cf::MAP) {
		2911	my $map = $cf::MAP{$path} or next;
		2912	$map->valid or next;
		2913	$map->save;
		2914	}
		2915	warn "end emergency map save\n";
		2916
		2917	warn "begin emergency database checkpoint\n";
		2918	BDB::db_env_txn_checkpoint $DB_ENV;
		2919	warn "end emergency database checkpoint\n";
		2920	};
		2921
		2922	warn "leave emergency perl save\n";
		2923	}
		2924
		2925	sub post_cleanup {
		2926	my ($make_core) = @_;
		2927
		2928	warn Carp::longmess "post_cleanup backtrace"
		2929	if $make_core;
		2930	}
		2931
2019	sub reload() {	2932	sub do_reload_perl() {
2020	# can/must only be called in main	2933	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	2934	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	2935	warn "can only reload from main coroutine";
2023	return;	2936	return;
2024	}	2937	}
2025		2938
2026	warn "reloading...";	2939	warn "reloading...";
2027		2940
2028	my $guard = freeze_mainloop;	2941	warn "entering sync_job";
		2942
		2943	cf::sync_job {
		2944	cf::write_runtime; # external watchdog should not bark
2029	cf::emergency_save;	2945	cf::emergency_save;
		2946	cf::write_runtime; # external watchdog should not bark
2030		2947
2031	eval {	2948	warn "syncing database to disk";
		2949	BDB::db_env_txn_checkpoint $DB_ENV;
		2950
2032	# if anything goes wrong in here, we should simply crash as we already saved	2951	# if anything goes wrong in here, we should simply crash as we already saved
2033		2952
2034	# cancel all watchers	2953	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	2954	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	2955	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	2956	}
2038		2957
		2958	warn "flushing outstanding aio requests";
		2959	for (;;) {
		2960	BDB::flush;
		2961	IO::AIO::flush;
		2962	Coro::cede;
		2963	last unless IO::AIO::nreqs || BDB::nreqs;
		2964	warn "iterate...";
		2965	}
		2966
		2967	++$RELOAD;
		2968
2039	# cancel all extension coros	2969	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	2970	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	2971	%EXT_CORO = ();
2042		2972
2043	# unload all extensions	2973	warn "removing commands";
2044	for (@exts) {	2974	%COMMAND = ();
		2975
		2976	warn "removing ext/exti commands";
		2977	%EXTCMD = ();
		2978	%EXTICMD = ();
		2979
		2980	warn "unloading/nuking all extensions";
		2981	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	2982	warn "... unloading $pkg";
2046	unload_extension $_;	2983
		2984	if (my $cb = $pkg->can ("unload")) {
		2985	eval {
		2986	$cb->($pkg);
		2987	1
		2988	} or warn "$pkg unloaded, but with errors: $@";
2047	}	2989	}
2048		2990
		2991	warn "... nuking $pkg";
		2992	Symbol::delete_package $pkg;
		2993	}
		2994
2049	# unload all modules loaded from $LIBDIR	2995	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	2996	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2997	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		2998
2053	warn "removing <$k>";	2999	warn "... unloading $k";
2054	delete $INC{$k};	3000	delete $INC{$k};
2055		3001
2056	$k =~ s/\.pm$//;	3002	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	3003	$k =~ s/\//::/g;
2058		3004
…		…
2061	}	3007	}
2062		3008
2063	Symbol::delete_package $k;	3009	Symbol::delete_package $k;
2064	}	3010	}
2065		3011
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	3012	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	3013	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3014	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		3015
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	3016	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	3017	delete $INC{"cf.pm"};
		3018	delete $INC{"cf/pod.pm"};
2079		3019
2080	# don't, removes xs symbols, too,	3020	# don't, removes xs symbols, too,
2081	# and global variables created in xs	3021	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	3022	#Symbol::delete_package __PACKAGE__;
2083		3023
2084	# reload cf.pm	3024	warn "unload completed, starting to reload now";
		3025
2085	warn "reloading cf.pm";	3026	warn "reloading cf.pm";
2086	require cf;	3027	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3028	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		3029
2089	# load config and database again	3030	warn "loading config and database again";
2090	cf::cfg_load;	3031	cf::cfg_load;
2091	cf::db_load;
2092		3032
2093	# load extensions
2094	warn "load extensions";	3033	warn "loading extensions";
2095	cf::load_extensions;	3034	cf::load_extensions;
2096		3035
2097	# reattach attachments to objects	3036	warn "reattaching attachments to objects/players";
2098	warn "reattach";	3037	_global_reattach; # objects, sockets
2099	_global_reattach;	3038	warn "reattaching attachments to maps";
2100	};	3039	reattach $_ for values %MAP;
		3040	warn "reattaching attachments to players";
		3041	reattach $_ for values %PLAYER;
2101		3042
2102	if ($@) {	3043	warn "leaving sync_job";
		3044
		3045	1
		3046	} or do {
2103	warn $@;	3047	warn $@;
2104	warn "error while reloading, exiting.";	3048	warn "error while reloading, exiting.";
2105	exit 1;	3049	exit 1;
2106	}	3050	};
2107		3051
2108	warn "reloaded successfully";	3052	warn "reloaded";
2109	};	3053	};
2110		3054
2111	#############################################################################	3055	our $RELOAD_WATCHER; # used only during reload
2112		3056
2113	unless ($LINK_MAP) {	3057	sub reload_perl() {
2114	$LINK_MAP = cf::map::new;	3058	# doing reload synchronously and two reloads happen back-to-back,
		3059	# coro crashes during coro_state_free->destroy here.
2115		3060
2116	$LINK_MAP->width (41);	3061	$RELOAD_WATCHER ||= Event->timer (
2117	$LINK_MAP->height (41);	3062	reentrant => 0,
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,	3063	after => 0,
		3064	data => WF_AUTOCANCEL,
2126	cb => sub {	3065	cb => sub {
2127	$_[0]->w->cancel;	3066	do_reload_perl;
2128		3067	undef $RELOAD_WATCHER;
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});	3068	},
2147		3069	);
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	3070	}
2153
2154	register "<global>", __PACKAGE__;
2155		3071
2156	register_command "reload" => sub {	3072	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	3073	my ($who, $arg) = @_;
2158		3074
2159	if ($who->flag (FLAG_WIZ)) {	3075	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	3076	$who->message ("reloading server.");
		3077	async { reload_perl };
2163	}	3078	}
2164	};	3079	};
2165		3080
2166	unshift @INC, $LIBDIR;	3081	unshift @INC, $LIBDIR;
2167		3082
		3083	my $bug_warning = 0;
		3084
		3085	our @WAIT_FOR_TICK;
		3086	our @WAIT_FOR_TICK_BEGIN;
		3087
		3088	sub wait_for_tick {
		3089	return unless $TICK_WATCHER->is_active;
		3090	return if $Coro::current == $Coro::main;
		3091
		3092	my $signal = new Coro::Signal;
		3093	push @WAIT_FOR_TICK, $signal;
		3094	$signal->wait;
		3095	}
		3096
		3097	sub wait_for_tick_begin {
		3098	return unless $TICK_WATCHER->is_active;
		3099	return if $Coro::current == $Coro::main;
		3100
		3101	my $signal = new Coro::Signal;
		3102	push @WAIT_FOR_TICK_BEGIN, $signal;
		3103	$signal->wait;
		3104	}
		3105
		3106	my $min = 1e6;#d#
		3107	my $avg = 10;
2168	$TICK_WATCHER = Event->timer (	3108	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	3109	reentrant => 0,
		3110	parked => 1,
2170	prio => 0,	3111	prio => 0,
2171	at => $NEXT_TICK || $TICK,	3112	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	3113	data => WF_AUTOCANCEL,
2173	cb => sub {	3114	cb => sub {
		3115	if ($Coro::current != $Coro::main) {
		3116	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3117	unless ++$bug_warning > 10;
		3118	return;
		3119	}
		3120
		3121	$NOW = $tick_start = Event::time;
		3122
2174	cf::server_tick; # one server iteration	3123	cf::server_tick; # one server iteration
		3124
		3125	0 && sync_job {#d#
		3126	for(1..10) {
		3127	my $t = Event::time;
		3128	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3129	or die;
		3130
		3131	$map->width (50);
		3132	$map->height (50);
		3133	$map->alloc;
		3134	$map->_load_objects ("/tmp/x.map", 1);
		3135	my $t = Event::time - $t;
		3136
		3137	#next unless $t < 0.0013;#d#
		3138	if ($t < $min) {
		3139	$min = $t;
		3140	}
		3141	$avg = $avg * 0.99 + $t * 0.01;
		3142	}
		3143	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3144	exit 0;
		3145	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3146	};
		3147
2175	$RUNTIME += $TICK;	3148	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	3149	$NEXT_TICK += $TICK;
2177		3150
		3151	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3152	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3153	Coro::async_pool {
		3154	write_runtime
		3155	or warn "ERROR: unable to write runtime file: $!";
		3156	};
		3157	}
		3158
		3159	# my $AFTER = Event::time;
		3160	# warn $AFTER - $NOW;#d#
		3161
		3162	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3163	$sig->send;
		3164	}
		3165	while (my $sig = shift @WAIT_FOR_TICK) {
		3166	$sig->send;
		3167	}
		3168
		3169	$NOW = Event::time;
		3170
2178	# if we are delayed by four ticks or more, skip them all	3171	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3172	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2180		3173
2181	$TICK_WATCHER->at ($NEXT_TICK);	3174	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	3175	$TICK_WATCHER->start;
		3176
		3177	$LOAD = ($NOW - $tick_start) / $TICK;
		3178	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3179
		3180	_post_tick;
		3181
		3182
2183	},	3183	},
2184	);	3184	);
2185		3185
		3186	{
2186	IO::AIO::max_poll_time $TICK * 0.2;	3187	BDB::max_poll_time $TICK * 0.1;
2187		3188	$BDB_POLL_WATCHER = Event->io (
2188	Event->io (	3189	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	3190	fd => BDB::poll_fileno,
2190	poll => 'r',	3191	poll => 'r',
2191	prio => 5,	3192	prio => 0,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,	3193	data => WF_AUTOCANCEL,
2198	after => 0,	3194	cb => \&BDB::poll_cb,
2199	interval => 10,	3195	);
2200	cb => sub {	3196	BDB::min_parallel 8;
2201	(Coro::unblock_sub {	3197
2202	write_runtime	3198	BDB::set_sync_prepare {
2203	or warn "ERROR: unable to write runtime file: $!";	3199	my $status;
		3200	my $current = $Coro::current;
		3201	(
		3202	sub {
		3203	$status = $!;
		3204	$current->ready; undef $current;
		3205	},
		3206	sub {
		3207	Coro::schedule while defined $current;
		3208	$! = $status;
		3209	},
		3210	)
		3211	};
		3212
		3213	unless ($DB_ENV) {
		3214	$DB_ENV = BDB::db_env_create;
		3215
		3216	cf::sync_job {
		3217	eval {
		3218	BDB::db_env_open
		3219	$DB_ENV,
		3220	$BDBDIR,
		3221	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3222	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3223	0666;
		3224
		3225	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3226
		3227	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3228	$DB_ENV->set_lk_detect;
		3229	};
		3230
		3231	cf::cleanup "db_env_open(db): $@" if $@;
2204	})->();	3232	};
2205	},	3233	}
2206	);	3234	}
		3235
		3236	{
		3237	IO::AIO::min_parallel 8;
		3238
		3239	undef $Coro::AIO::WATCHER;
		3240	IO::AIO::max_poll_time $TICK * 0.1;
		3241	$AIO_POLL_WATCHER = Event->io (
		3242	reentrant => 0,
		3243	data => WF_AUTOCANCEL,
		3244	fd => IO::AIO::poll_fileno,
		3245	poll => 'r',
		3246	prio => 6,
		3247	cb => \&IO::AIO::poll_cb,
		3248	);
		3249	}
		3250
		3251	my $_log_backtrace;
		3252
		3253	sub _log_backtrace {
		3254	my ($msg, @addr) = @_;
		3255
		3256	$msg =~ s/\n//;
		3257
		3258	# limit the # of concurrent backtraces
		3259	if ($_log_backtrace < 2) {
		3260	++$_log_backtrace;
		3261	async {
		3262	my @bt = fork_call {
		3263	@addr = map { sprintf "%x", $_ } @addr;
		3264	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3265	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3266	or die "addr2line: $!";
		3267
		3268	my @funcs;
		3269	my @res = <$fh>;
		3270	chomp for @res;
		3271	while (@res) {
		3272	my ($func, $line) = splice @res, 0, 2, ();
		3273	push @funcs, "[$func] $line";
		3274	}
		3275
		3276	@funcs
		3277	};
		3278
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] $_\n" for @bt;
		3281	--$_log_backtrace;
		3282	};
		3283	} else {
		3284	LOG llevInfo, "[ABT] $msg\n";
		3285	LOG llevInfo, "[ABT] [suppressed]\n";
		3286	}
		3287	}
		3288
		3289	# load additional modules
		3290	use cf::pod;
2207		3291
2208	END { cf::emergency_save }	3292	END { cf::emergency_save }
2209		3293
2210	1	3294	1
2211		3295

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