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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.123 by root, Tue Jan 2 19:18:33 2007 UTC vs.
Revision 1.289 by root, Sat Jun 30 03:00:54 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	93
55	our $RANDOM_MAPS = cf::localdir . "/random";	94	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
57		100
58	binmode STDOUT;	101	binmode STDOUT;
59	binmode STDERR;	102	binmode STDERR;
60		103
61	# read virtual server time, if available	104	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
66	}	109	}
67		110
68	mkdir cf::localdir;	111	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		113
74	# a special map that is always available	114	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		115
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	116	sub cf::map::normalise;
78		117
79	#############################################################################	118	#############################################################################
80		119
81	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
82		121
…		…
89	=item $cf::RUNTIME	128	=item $cf::RUNTIME
90		129
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	131	every server tick.
93		132
94	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		136
96	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
98		141
99	=item $cf::NOW	142	=item $cf::NOW
100		143
101	The time of the last (current) server tick.	144	The time of the last (current) server tick.
102		145
103	=item $cf::TICK	146	=item $cf::TICK
104		147
105	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
106		159
107	=item %cf::CFG	160	=item %cf::CFG
108		161
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		170
112	=back	171	=back
113		172
114	=cut	173	=cut
115		174
116	BEGIN {	175	BEGIN {
117	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	177	my $msg = join "", @_;
119	utf8::encode $msg;
120		178
121	$msg .= "\n"	179	$msg .= "\n"
122	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
123		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
125	};	186	};
126	}	187	}
127		188
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		196
135	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	198	# within the Safe compartment.
137	for my $pkg (qw(	199	for my $pkg (qw(
138	cf::global cf::attachable	200	cf::global cf::attachable
…		…
147		209
148	$Event::DIED = sub {	210	$Event::DIED = sub {
149	warn "error in event callback: @_";	211	warn "error in event callback: @_";
150	};	212	};
151		213
152	my %ext_pkg;	214	#############################################################################
153	my @exts;
154	my @hook;
155		215
156	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
157		217
158	=over 4	218	=over 4
159		219
160	=cut	220	=item dumpval $ref
161		221
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
163		242
164	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
165		244
166	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
167		246
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
176		248
177	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
178		250
179	=cut	251	=cut
180		252
181	sub to_json($) {	253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		254
186	=item my $guard = cf::guard { BLOCK }	255	sub to_json ($) { $json_coder->encode ($_[0]) }
187		256	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		257
208	=item cf::lock_wait $string	258	=item cf::lock_wait $string
209		259
210	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
211		261
212	=item my $lock = cf::lock_acquire $string	262	=item my $lock = cf::lock_acquire $string
213		263
214	Wait until the given lock is available and then acquires it and returns	264	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	265	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	266	for example when the coroutine gets canceled), the lock is automatically
217	returned.	267	returned.
218		268
219	Lock names should begin with a unique identifier (for example, find_map	269	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
221		275
222	=cut	276	=cut
223		277
224	our %LOCK;	278	our %LOCK;
225		279
…		…
239	# wait, to be sure we are not locked	293	# wait, to be sure we are not locked
240	lock_wait $key;	294	lock_wait $key;
241		295
242	$LOCK{$key} = [];	296	$LOCK{$key} = [];
243		297
244	cf::guard {	298	Coro::guard {
245	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
247	}	301	}
248	}	302	}
249		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
		310	sub freeze_mainloop {
		311	return unless $TICK_WATCHER->is_active;
		312
		313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
		316	$TICK_WATCHER->stop;
		317	$guard
		318	}
		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
250	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
251		331
252	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
255		336
256	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
259	fast or be very important.	340	fast or be very important.
…		…
262		343
263	sub sync_job(&) {	344	sub sync_job(&) {
264	my ($job) = @_;	345	my ($job) = @_;
265		346
266	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
267	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
269		352
270	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	354	# (but this is cancel-safe)
272	local $FREEZE = 1;	355	my $freeze_guard = freeze_mainloop;
273		356
274	my $busy = 1;	357	my $busy = 1;
275	my @res;	358	my @res;
276		359
277	(Coro::async {	360	(async {
278	@res = eval { $job->() };	361	@res = eval { $job->() };
279	warn $@ if $@;	362	warn $@ if $@;
280	undef $busy;	363	undef $busy;
281	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
282		365
283	while ($busy) {	366	while ($busy) {
284	Coro::cede_notself;	367	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	368	}
		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
287		376
288	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
289	} else {	378	} else {
290	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
291		380
292	$job->()	381	$job->()
293	}	382	}
294	}	383	}
295		384
296	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
297		386
298	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
300		389
301	=cut	390	=cut
302		391
303	sub coro(&) {	392	sub async_ext(&) {
304	my $cb = shift;	393	my $cb = shift;
305		394
306	my $coro; $coro = async {	395	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		396
313	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
315	});	399	});
316	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
317		401
318	$coro	402	$coro
319	}	403	}
320		404
321	sub write_runtime {	405	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		406
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
325	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.
326		411
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		413
331	aio_fsync $fh	414	sub fork_call(&@) {
332	and return;	415	my ($cb, @args) = @_;
333		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
334	close $fh	423	close $fh2;
335	or return;
336		424
337	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
338	and return;	426	$res = Coro::Storable::thaw $res;
339		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
340	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	574	}
342		575
343	=back	576	=back
344		577
345	=cut	578	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		579
467	#############################################################################	580	#############################################################################
468		581
469	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
470		583
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
474		587
475	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	590	Crossfire TRT).
478		591
479	=over 4	592	=over 4
480		593
481	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
482		595
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	710	our @CB_MAP = ();
598		711
599	my %attachment;	712	my %attachment;
600		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
601	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
603		722
604	use sort 'stable';	723	use sort 'stable';
605		724
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
640		759
641	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		764
646	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	766	my $pkg = shift @arg;
648		767
649	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
679	}	798	}
680		799
681	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
682	} else {	801	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	803	}
685		804
686	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
687	}	806	}
688		807
…		…
690	if (ref $_[0]) {	809	if (ref $_[0]) {
691	_object_attach @_;	810	_object_attach @_;
692	} else {	811	} else {
693	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
694	}	813	}
		814	_recalc_want;
695	};	815	};
696		816
697	# all those should be optimised	817	# all those should be optimised
698	sub cf::attachable::detach {	818	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
703	reattach ($obj);	823	reattach ($obj);
704	} else {	824	} else {
705	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
706	}	826	}
		827	_recalc_want;
707	};	828	};
708		829
709	sub cf::attachable::attached {	830	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
711		832
…		…
776	# object support	897	# object support
777		898
778	sub reattach {	899	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		904
782	my $registry = $obj->registry;	905	my $registry = $obj->registry;
783		906
784	@$registry = ();	907	@$registry = ();
785		908
…		…
832	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
833		956
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	961	close $fh;
839		962
840	if (@$objs) {	963	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	969	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
848	}	971	}
849	} else {	972	} else {
850	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
882	or return;	1005	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1007	}
885		1008
886	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
888	return ($data, $av);	1011	return ($data, $av);
889	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
890		1019
891	#############################################################################	1020	#############################################################################
892	# command handling &c	1021	# command handling &c
893		1022
894	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1037	}
909		1038
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1040
912	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
913		1046
914	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
915	called.	1048	called.
916		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
917	=cut	1061	=cut
918		1062
919	sub register_extcmd {	1063	sub register_extcmd {
920	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
921		1065
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
926	}	1073	}
927		1074
928	cf::player->attach (	1075	cf::player->attach (
929	on_command => sub {	1076	on_command => sub {
930	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
943		1090
944	my $msg = eval { from_json $buf };	1091	my $msg = eval { from_json $buf };
945		1092
946	if (ref $msg) {	1093	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	1097	}
951	}	1098	}
952	} else {	1099	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		1102
956	cf::override;	1103	cf::override;
957	},	1104	},
958	);	1105	);
959		1106
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
		1413	=item $player->ext_reply ($msgid, %msg)
		1414
		1415	Sends an ext reply to the player.
		1416
		1417	=cut
		1418
		1419	sub ext_reply($$%) {
		1420	my ($self, $id, %msg) = @_;
		1421
		1422	$msg{msgid} = $id;
		1423	$self->send ("ext " . cf::to_json \%msg);
		1424	}
		1425
		1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
967	my ($path) = @_;	1453	my ($path) = @_;
968		1454
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1455	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1456
975	warn "loading '$path' into '$pkg'\n";	1457	for my $region (list) {
976		1458	if ($region->match && $path =~ $region->match) {
977	open my $fh, "<:utf8", $path	1459	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1460	if $region->specificity > $specificity;
979		1461	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1462	}
1009		1463
1010	# remove commands	1464	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1465	}
1116		1466
1117	=back	1467	=back
1118
1119		1468
1120	=head3 cf::map	1469	=head3 cf::map
1121		1470
1122	=over 4	1471	=over 4
1123		1472
…		…
1126	package cf::map;	1475	package cf::map;
1127		1476
1128	use Fcntl;	1477	use Fcntl;
1129	use Coro::AIO;	1478	use Coro::AIO;
1130		1479
		1480	use overload
		1481	'""' => \&as_string,
		1482	fallback => 1;
		1483
1131	our $MAX_RESET = 7200;	1484	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1485	our $DEFAULT_RESET = 3000;
1133		1486
1134	sub generate_random_map {	1487	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1488	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1489	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1490	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1491	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1492	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1493	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1494	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1495	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1496	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1497	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1498	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1499	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1500	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1501	(cf::region::find $rmp->{region}), $rmp->{custom}
		1502	)
		1503	}
		1504
		1505	=item cf::map->register ($regex, $prio)
		1506
		1507	Register a handler for the map path matching the given regex at the
		1508	givne priority (higher is better, built-in handlers have priority 0, the
		1509	default).
		1510
		1511	=cut
		1512
		1513	sub register {
		1514	my (undef, $regex, $prio) = @_;
		1515	my $pkg = caller;
		1516
		1517	no strict;
		1518	push @{"$pkg\::ISA"}, __PACKAGE__;
		1519
		1520	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1521	}
		1522
		1523	# also paths starting with '/'
		1524	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1525
		1526	sub thawer_merge {
		1527	my ($self, $merge) = @_;
		1528
		1529	# we have to keep some variables in memory intact
		1530	local $self->{path};
		1531	local $self->{load_path};
		1532
		1533	$self->SUPER::thawer_merge ($merge);
		1534	}
		1535
		1536	sub normalise {
		1537	my ($path, $base) = @_;
		1538
		1539	$path = "$path"; # make sure its a string
		1540
		1541	$path =~ s/\.map$//;
		1542
		1543	# map plan:
		1544	#
		1545	# /! non-realised random map exit (special hack!)
		1546	# {... are special paths that are not being touched
		1547	# ?xxx/... are special absolute paths
		1548	# ?random/... random maps
		1549	# /... normal maps
		1550	# ~user/... per-player map of a specific user
		1551
		1552	$path =~ s/$PATH_SEP/\//go;
		1553
		1554	# treat it as relative path if it starts with
		1555	# something that looks reasonable
		1556	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1557	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1558
		1559	$base =~ s{[^/]+/?$}{};
		1560	$path = "$base/$path";
		1561	}
		1562
		1563	for ($path) {
		1564	redo if s{//}{/};
		1565	redo if s{/\.?/}{/};
		1566	redo if s{/[^/]+/\.\./}{/};
		1567	}
		1568
		1569	$path
		1570	}
		1571
		1572	sub new_from_path {
		1573	my (undef, $path, $base) = @_;
		1574
		1575	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1576
		1577	$path = normalise $path, $base;
		1578
		1579	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1580	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1581	my $self = bless cf::map::new, $pkg;
		1582	$self->{path} = $path; $self->path ($path);
		1583	$self->init; # pass $1 etc.
		1584	return $self;
		1585	}
		1586	}
		1587
		1588	Carp::carp "unable to resolve path '$path' (base '$base').";
		1589	()
		1590	}
		1591
		1592	sub init {
		1593	my ($self) = @_;
		1594
		1595	$self
		1596	}
		1597
		1598	sub as_string {
		1599	my ($self) = @_;
		1600
		1601	"$self->{path}"
		1602	}
		1603
		1604	# the displayed name, this is a one way mapping
		1605	sub visible_name {
		1606	&as_string
		1607	}
		1608
		1609	# the original (read-only) location
		1610	sub load_path {
		1611	my ($self) = @_;
		1612
		1613	"$MAPDIR/$self->{path}.map"
		1614	}
		1615
		1616	# the temporary/swap location
		1617	sub save_path {
		1618	my ($self) = @_;
		1619
		1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1621	"$TMPDIR/$path.map"
		1622	}
		1623
		1624	# the unique path, undef == no special unique path
		1625	sub uniq_path {
		1626	my ($self) = @_;
		1627
		1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1629	"$UNIQUEDIR/$path"
1151	}	1630	}
1152		1631
1153	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1154	# all maps in C++...	1633	# all maps in C++...
1155	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1157		1636
1158	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1160	}	1639	}
1161		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
		1649	sub unlink_save {
		1650	my ($self) = @_;
		1651
		1652	utf8::encode (my $save = $self->save_path);
		1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1655	}
		1656
1162	sub try_load_header($) {	1657	sub load_header_from($) {
1163	my ($path) = @_;	1658	my ($self, $path) = @_;
1164		1659
1165	utf8::encode $path;	1660	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
		1662	# or return;
		1663
		1664	$self->_load_header ($path)
1167	or return;	1665	or return;
1168		1666
1169	my $map = cf::map::new	1667	$self->{load_path} = $path;
		1668
		1669	1
		1670	}
		1671
		1672	sub load_header_orig {
		1673	my ($self) = @_;
		1674
		1675	$self->load_header_from ($self->load_path)
		1676	}
		1677
		1678	sub load_header_temp {
		1679	my ($self) = @_;
		1680
		1681	$self->load_header_from ($self->save_path)
		1682	}
		1683
		1684	sub prepare_temp {
		1685	my ($self) = @_;
		1686
		1687	$self->last_access ((delete $self->{last_access})
		1688	|| $cf::RUNTIME); #d#
		1689	# safety
		1690	$self->{instantiate_time} = $cf::RUNTIME
		1691	if $self->{instantiate_time} > $cf::RUNTIME;
		1692	}
		1693
		1694	sub prepare_orig {
		1695	my ($self) = @_;
		1696
		1697	$self->{load_original} = 1;
		1698	$self->{instantiate_time} = $cf::RUNTIME;
		1699	$self->last_access ($cf::RUNTIME);
		1700	$self->instantiate;
		1701	}
		1702
		1703	sub load_header {
		1704	my ($self) = @_;
		1705
		1706	if ($self->load_header_temp) {
		1707	$self->prepare_temp;
		1708	} else {
		1709	$self->load_header_orig
1170	or return;	1710	or return;
		1711	$self->prepare_orig;
		1712	}
1171		1713
1172	$map->load_header ($path)	1714	$self->{deny_reset} = 1
1173	or return;	1715	if $self->no_reset;
1174		1716
1175	$map->{load_path} = $path;	1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
1176		1719
1177	$map	1720	1
1178	}	1721	}
1179		1722
		1723	sub find;
1180	sub find_map {	1724	sub find {
1181	my ($path, $origin) = @_;	1725	my ($path, $origin) = @_;
1182		1726
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1727	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1728
1188	cf::lock_wait "map_find:$key";	1729	cf::lock_wait "map_find:$path";
1189		1730
1190	$cf::MAP{$key} || do {	1731	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1732	my $guard = cf::lock_acquire "map_find:$path";
1192		1733	my $map = new_from_path cf::map $path
1193	# do it the slow way
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1734	or return;
1208		1735
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1737
1222	if ($map->should_reset) {	1738	$map->load_header
		1739	or return;
		1740
		1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1742	# doing this can freeze the server in a sync job, obviously
		1743	#$cf::WAIT_FOR_TICK->wait;
1223	$map->reset;	1744	$map->reset;
1224	undef $guard;	1745	undef $guard;
1225	$map = find_map $path;	1746	return find $path;
1226	}	1747	}
1227		1748
1228	$cf::MAP{$key} = $map	1749	$cf::MAP{$path} = $map
1229	}	1750	}
1230	}	1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
1231		1755
1232	sub load {	1756	sub load {
1233	my ($self) = @_;	1757	my ($self) = @_;
1234		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
1235	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1236	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1764	my $guard = cf::lock_acquire "map_load:$path";
1237		1765
1238	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1239		1767
1240	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1241		1769
1242	$self->alloc;	1770	$self->alloc;
		1771
		1772	$self->pre_load;
		1773	Coro::cede;
		1774
1243	$self->load_objects ($self->{load_path}, 1)	1775	$self->_load_objects ($self->{load_path}, 1)
1244	or return;	1776	or return;
1245		1777
1246	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1247	if delete $self->{load_original};	1779	if delete $self->{load_original};
1248		1780
1249	if (my $uniq = $path->uniq_path) {	1781	if (my $uniq = $self->uniq_path) {
1250	utf8::encode $uniq;	1782	utf8::encode $uniq;
1251	if (aio_open $uniq, O_RDONLY, 0) {	1783	if (aio_open $uniq, O_RDONLY, 0) {
1252	$self->clear_unique_items;	1784	$self->clear_unique_items;
1253	$self->load_objects ($uniq, 0);	1785	$self->_load_objects ($uniq, 0);
1254	}	1786	}
1255	}	1787	}
1256		1788
		1789	Coro::cede;
1257	# now do the right thing for maps	1790	# now do the right thing for maps
1258	$self->link_multipart_objects;	1791	$self->link_multipart_objects;
1259
1260	if ($self->{path}->is_style_map) {
1261	$self->{deny_save} = 1;
1262	$self->{deny_reset} = 1;
1263	} else {
1264	$self->fix_auto_apply;
1265	$self->decay_objects;
1266	$self->update_buttons;
1267	$self->set_darkness_map;
1268	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1269	unless $self->difficulty;	1793	unless $self->difficulty;
		1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1270	$self->activate;	1803	$self->activate;
1271	}	1804	}
1272		1805
1273	$self->in_memory (cf::MAP_IN_MEMORY);	1806	$self->in_memory (cf::MAP_IN_MEMORY);
1274	}	1807	}
1275		1808
1276	sub load_map_sync {	1809	$self->post_load;
		1810	}
		1811
		1812	sub customise_for {
		1813	my ($self, $ob) = @_;
		1814
		1815	return find "~" . $ob->name . "/" . $self->{path}
		1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
		1820
		1821	$self
		1822	}
		1823
		1824	# find and load all maps in the 3x3 area around a map
		1825	sub load_diag {
		1826	my ($map) = @_;
		1827
		1828	my @diag; # diagonal neighbours
		1829
		1830	for (0 .. 3) {
		1831	my $neigh = $map->tile_path ($_)
		1832	or next;
		1833	$neigh = find $neigh, $map
		1834	or next;
		1835	$neigh->load;
		1836
		1837	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1838	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1839	}
		1840
		1841	for (@diag) {
		1842	my $neigh = find @$_
		1843	or next;
		1844	$neigh->load;
		1845	}
		1846	}
		1847
		1848	sub find_sync {
1277	my ($path, $origin) = @_;	1849	my ($path, $origin) = @_;
1278		1850
1279	#warn "load_map_sync<$path, $origin>\n";#d#	1851	cf::sync_job { find $path, $origin }
		1852	}
1280		1853
1281	cf::sync_job {	1854	sub do_load_sync {
1282	my $map = cf::map::find_map $path, $origin	1855	my ($map) = @_;
1283	or return;	1856
		1857	cf::sync_job { $map->load };
		1858	}
		1859
		1860	our %MAP_PREFETCH;
		1861	our $MAP_PREFETCHER = undef;
		1862
		1863	sub find_async {
		1864	my ($path, $origin) = @_;
		1865
		1866	$path = normalise $path, $origin && $origin->{path};
		1867
		1868	if (my $map = $cf::MAP{$path}) {
		1869	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1870	}
		1871
		1872	undef $MAP_PREFETCH{$path};
		1873	$MAP_PREFETCHER ||= cf::async {
		1874	while (%MAP_PREFETCH) {
		1875	for my $path (keys %MAP_PREFETCH) {
		1876	my $map = find $path
		1877	or next;
1284	$map->load;	1878	$map->load;
1285	$map	1879
		1880	delete $MAP_PREFETCH{$path};
		1881	}
		1882	}
		1883	undef $MAP_PREFETCHER;
1286	}	1884	};
		1885	$MAP_PREFETCHER->prio (6);
		1886
		1887	()
1287	}	1888	}
1288		1889
1289	sub save {	1890	sub save {
1290	my ($self) = @_;	1891	my ($self) = @_;
1291		1892
		1893	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1894
1292	$self->{last_save} = $cf::RUNTIME;	1895	$self->{last_save} = $cf::RUNTIME;
1293		1896
1294	return unless $self->dirty;	1897	return unless $self->dirty;
1295		1898
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1899	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1900	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1901
1299	$self->{load_path} = $save;	1902	$self->{load_path} = $save;
1300		1903
1301	return if $self->{deny_save};	1904	return if $self->{deny_save};
1302		1905
		1906	local $self->{last_access} = $self->last_access;#d#
		1907
		1908	cf::async {
		1909	$_->contr->save for $self->players;
		1910	};
		1911
1303	if ($uniq) {	1912	if ($uniq) {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1913	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1305	$self->save_objects ($uniq, cf::IO_UNIQUES);	1914	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1306	} else {	1915	} else {
1307	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1916	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1308	}	1917	}
1309	}	1918	}
1310		1919
1311	sub swap_out {	1920	sub swap_out {
1312	my ($self) = @_;	1921	my ($self) = @_;
		1922
		1923	# save first because save cedes
		1924	$self->save;
		1925
		1926	my $lock = cf::lock_acquire "map_data:" . $self->path;
1313		1927
1314	return if $self->players;	1928	return if $self->players;
1315	return if $self->in_memory != cf::MAP_IN_MEMORY;	1929	return if $self->in_memory != cf::MAP_IN_MEMORY;
1316	return if $self->{deny_save};	1930	return if $self->{deny_save};
1317		1931
1318	$self->save;
1319	$self->clear;	1932	$self->clear;
1320	$self->in_memory (cf::MAP_SWAPPED);	1933	$self->in_memory (cf::MAP_SWAPPED);
1321	}	1934	}
1322		1935
1323	sub reset_at {	1936	sub reset_at {
1324	my ($self) = @_;	1937	my ($self) = @_;
1325		1938
1326	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1327	return 1e99 if $self->{path}{user_rel};
1328	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1329		1941
1330	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1331	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1332		1944
…		…
1337	my ($self) = @_;	1949	my ($self) = @_;
1338		1950
1339	$self->reset_at <= $cf::RUNTIME	1951	$self->reset_at <= $cf::RUNTIME
1340	}	1952	}
1341		1953
1342	sub unlink_save {
1343	my ($self) = @_;
1344
1345	utf8::encode (my $save = $self->{path}->save_path);
1346	aioreq_pri 3; IO::AIO::aio_unlink $save;
1347	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1348	}
1349
1350	sub rename {
1351	my ($self, $new_path) = @_;
1352
1353	$self->unlink_save;
1354
1355	delete $cf::MAP{$self->path};
1356	$self->{path} = new cf::path $new_path;
1357	$self->path ($self->{path}->as_string);
1358	$cf::MAP{$self->path} = $self;
1359
1360	$self->save;
1361	}
1362
1363	sub reset {	1954	sub reset {
1364	my ($self) = @_;	1955	my ($self) = @_;
1365		1956
		1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1958
1366	return if $self->players;	1959	return if $self->players;
1367	return if $self->{path}{user_rel};#d#
1368		1960
1369	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1370		1972
1371	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
		1974
		1975	$self->clear;
1372		1976
1373	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1374		1978
1375	$self->unlink_save;	1979	$self->unlink_save;
1376	$self->destroy;	1980	$self->destroy;
…		…
1379	my $nuke_counter = "aaaa";	1983	my $nuke_counter = "aaaa";
1380		1984
1381	sub nuke {	1985	sub nuke {
1382	my ($self) = @_;	1986	my ($self) = @_;
1383		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
1384	$self->{deny_save} = 1;	1994	$self->{deny_save} = 1;
1385	$self->reset_timeout (1);	1995	$self->reset_timeout (1);
1386	$self->rename ("{nuke}/" . ($nuke_counter++));	1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
1387	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1388	}	2001	}
1389		2002
1390	sub customise_for {	2003	=item $maps = cf::map::tmp_maps
1391	my ($map, $ob) = @_;
1392		2004
1393	if ($map->per_player) {	2005	Returns an arrayref with all map paths of currently instantiated and saved
1394	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
1395	}	2011	[
1396		2012	map {
1397	$map	2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
1398	}	2019	}
1399		2020
1400	sub emergency_save {	2021	=item $maps = cf::map::random_maps
1401	local $cf::FREEZE = 1;
1402		2022
1403	warn "enter emergency map save\n";	2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
1404		2025
1405	cf::sync_job {	2026	=cut
1406	warn "begin emergency map save\n";
1407	$_->save for values %cf::MAP;
1408	};
1409		2027
1410	warn "end emergency map save\n";	2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
		2039	=item cf::map::unique_maps
		2040
		2041	Returns an arrayref of paths of all shared maps that have
		2042	instantiated unique items. May block.
		2043
		2044	=cut
		2045
		2046	sub unique_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $UNIQUEDIR or [] }
		2054	]
1411	}	2055	}
1412		2056
1413	package cf;	2057	package cf;
1414		2058
1415	=back	2059	=back
1416		2060
		2061	=head3 cf::object
		2062
		2063	=cut
		2064
		2065	package cf::object;
		2066
		2067	=over 4
		2068
		2069	=item $ob->inv_recursive
		2070
		2071	Returns the inventory of the object _and_ their inventories, recursively.
		2072
		2073	=cut
		2074
		2075	sub inv_recursive_;
		2076	sub inv_recursive_ {
		2077	map { $_, inv_recursive_ $_->inv } @_
		2078	}
		2079
		2080	sub inv_recursive {
		2081	inv_recursive_ inv $_[0]
		2082	}
		2083
		2084	package cf;
		2085
		2086	=back
1417		2087
1418	=head3 cf::object::player	2088	=head3 cf::object::player
1419		2089
1420	=over 4	2090	=over 4
1421		2091
…		…
1435		2105
1436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1437		2107
1438	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1440	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1441	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1442	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1443	}	2127	}
1444	}	2128	}
1445		2129
1446	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1447		2131
…		…
1461		2145
1462	=item $player_object->enter_link	2146	=item $player_object->enter_link
1463		2147
1464	Freezes the player and moves him/her to a special map (C<{link}>).	2148	Freezes the player and moves him/her to a special map (C<{link}>).
1465		2149
1466	The player should be reaosnably safe there for short amounts of time. You	2150	The player should be reasonably safe there for short amounts of time. You
1467	I<MUST> call C<leave_link> as soon as possible, though.	2151	I<MUST> call C<leave_link> as soon as possible, though.
1468		2152
		2153	Will never block.
		2154
1469	=item $player_object->leave_link ($map, $x, $y)	2155	=item $player_object->leave_link ($map, $x, $y)
1470		2156
1471	Moves the player out of the specila link map onto the given map. If the	2157	Moves the player out of the special C<{link}> map onto the specified
1472	map is not valid (or omitted), the player will be moved back to the	2158	map. If the map is not valid (or omitted), the player will be moved back
1473	location he/she was before the call to C<enter_link>, or, if that fails,	2159	to the location he/she was before the call to C<enter_link>, or, if that
1474	to the emergency map position.	2160	fails, to the emergency map position.
1475		2161
1476	Might block.	2162	Might block.
1477		2163
1478	=cut	2164	=cut
		2165
		2166	sub link_map {
		2167	unless ($LINK_MAP) {
		2168	$LINK_MAP = cf::map::find "{link}"
		2169	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2170	$LINK_MAP->load;
		2171	}
		2172
		2173	$LINK_MAP
		2174	}
1479		2175
1480	sub cf::object::player::enter_link {	2176	sub cf::object::player::enter_link {
1481	my ($self) = @_;	2177	my ($self) = @_;
1482		2178
1483	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1484		2180
1485	return if $self->map == $LINK_MAP;	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1486		2182
1487	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1488	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1489		2185
1490	$self->enter_map ($LINK_MAP, 20, 20);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1491	}	2187	}
1492		2188
1493	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1494	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1495		2193
1496	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1497		2195
1498	unless ($map) {	2196	unless ($map) {
1499	# restore original map position	2197	# restore original map position
1500	($map, $x, $y) = @{ $link_pos || [] };	2198	($map, $x, $y) = @{ $link_pos || [] };
1501	$map = cf::map::find_map $map;	2199	$map = cf::map::find $map;
1502		2200
1503	unless ($map) {	2201	unless ($map) {
1504	($map, $x, $y) = @$EMERGENCY_POSITION;	2202	($map, $x, $y) = @$EMERGENCY_POSITION;
1505	$map = cf::map::find_map $map	2203	$map = cf::map::find $map
1506	or die "FATAL: cannot load emergency map\n";	2204	or die "FATAL: cannot load emergency map\n";
1507	}	2205	}
1508	}	2206	}
1509		2207
1510	($x, $y) = (-1, -1)	2208	($x, $y) = (-1, -1)
…		…
1513	# use -1 or undef as default coordinates, not 0, 0	2211	# use -1 or undef as default coordinates, not 0, 0
1514	($x, $y) = ($map->enter_x, $map->enter_y)	2212	($x, $y) = ($map->enter_x, $map->enter_y)
1515	if $x <=0 && $y <= 0;	2213	if $x <=0 && $y <= 0;
1516		2214
1517	$map->load;	2215	$map->load;
		2216	$map->load_diag;
1518		2217
		2218	return unless $self->contr->active;
1519	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1520	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1521	}	2223	}
1522		2224
1523	cf::player->attach (
1524	on_logout => sub {
1525	my ($pl) = @_;
1526
1527	# abort map switching before logout
1528	if ($pl->ob->{_link_pos}) {
1529	cf::sync_job {
1530	$pl->ob->leave_link
1531	};
1532	}
1533	},
1534	on_login => sub {
1535	my ($pl) = @_;
1536
1537	# try to abort aborted map switching on player login :)
1538	# should happen only on crashes
1539	if ($pl->ob->{_link_pos}) {
1540	$pl->ob->enter_link;
1541	Coro::async {
1542	# we need this sleep as the login has a concurrent enter_exit running
1543	# and this sleep increases chances of the player not ending up in scorn
1544	Coro::Timer::sleep 1;
1545	$pl->ob->leave_link;
1546	};
1547	}
1548	},
1549	);
1550
1551	=item $player_object->goto_map ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1552		2226
1553	=cut	2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
1554		2231
		2232	=cut
		2233
		2234	our $GOTOGEN;
		2235
1555	sub cf::object::player::goto_map {	2236	sub cf::object::player::goto {
1556	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1557		2241
1558	$self->enter_link;	2242	$self->enter_link;
1559		2243
1560	(Coro::async {	2244	(async {
1561	$path = new cf::path $path;	2245	my $map = eval {
1562
1563	my $map = cf::map::find_map $path->as_string;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1564	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
1565		2250	$map = $check->($map) if $check && $map;
1566	# warn "entering ", $map->path, " at ($x, $y)\n"	2251	} else {
1567	# if $map;
1568
1569	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
1570		2254
		2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
		2261	}
		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1571	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1572	})->prio (1);	2267	})->prio (1);
1573	}	2268	}
1574		2269
1575	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1576		2271
…		…
1578		2273
1579	sub parse_random_map_params {	2274	sub parse_random_map_params {
1580	my ($spec) = @_;	2275	my ($spec) = @_;
1581		2276
1582	my $rmp = { # defaults	2277	my $rmp = { # defaults
1583	xsize => 10,	2278	xsize => (cf::rndm 15, 40),
1584	ysize => 10,	2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
1585	};	2282	};
1586		2283
1587	for (split /\n/, $spec) {	2284	for (split /\n/, $spec) {
1588	my ($k, $v) = split /\s+/, $_, 2;	2285	my ($k, $v) = split /\s+/, $_, 2;
1589		2286
…		…
1593	$rmp	2290	$rmp
1594	}	2291	}
1595		2292
1596	sub prepare_random_map {	2293	sub prepare_random_map {
1597	my ($exit) = @_;	2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
1598		2297
1599	# all this does is basically replace the /! path by	2298	# all this does is basically replace the /! path by
1600	# a new random map path (?random/...) with a seed	2299	# a new random map path (?random/...) with a seed
1601	# that depends on the exit object	2300	# that depends on the exit object
1602		2301
1603	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1604		2303
1605	if ($exit->map) {	2304	if ($exit->map) {
1606	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1607	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1608	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1609	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1610	}	2309	}
1611		2310
1612	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1613		2312
1614	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1615	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
1616		2316
1617	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1618	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
		2319	undef $fh;
		2320	aio_rename "$meta~", $meta;
1619		2321
1620	$exit->slaying ("?random/$md5");	2322	$exit->slaying ("?random/$md5");
1621	$exit->msg (undef);	2323	$exit->msg (undef);
1622	}	2324	}
1623	}	2325	}
…		…
1625	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1626	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1627		2329
1628	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1629		2331
		2332	if ($exit->slaying eq "/!") {
		2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
		2336	cf::sync_job { prepare_random_map $exit };
		2337	}
		2338
		2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2340	my $hp = $exit->stats->hp;
		2341	my $sp = $exit->stats->sp;
		2342
1630	$self->enter_link;	2343	$self->enter_link;
1631		2344
1632	(Coro::async {	2345	(async {
		2346	$self->deactivate_recursive; # just to be sure
1633	unless (eval {	2347	unless (eval {
1634		2348	$self->goto ($slaying, $hp, $sp);
1635	prepare_random_map $exit
1636	if $exit->slaying eq "/!";
1637
1638	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1639	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1640		2349
1641	1;	2350	1;
1642	}) {	2351	}) {
1643	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1644	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1645	. "Please report this to the dungeon master",	2354	. "Please report this to the dungeon master!",
1646	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1647		2356
1648	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1649	$self->leave_link;	2358	$self->leave_link;
1650	}	2359	}
1651	})->prio (1);	2360	})->prio (1);
…		…
1664		2373
1665	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1666	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1667		2376
1668	utf8::encode $text;	2377	utf8::encode $text;
1669	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1670	}	2379	}
1671		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1672		2431
1673	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1674		2433
1675	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1676	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1677	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1678		2437
1679	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1680	reliable at some point in the future.	2439	become reliable at some point in the future.
1681		2440
1682	=cut	2441	=cut
1683		2442
1684	sub cf::client::query {	2443	sub cf::client::query {
1685	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1693	utf8::encode $text;	2452	utf8::encode $text;
1694	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1695		2454
1696	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1697	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1698	}	2459	}
1699		2460
1700	cf::client->attach (	2461	cf::client->attach (
1701	on_reply => sub {	2462	on_reply => sub {
1702	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
1703		2464
1704	# this weird shuffling is so that direct followup queries	2465	# this weird shuffling is so that direct followup queries
1705	# get handled first	2466	# get handled first
1706	my $queue = delete $ns->{query_queue};	2467	my $queue = delete $ns->{query_queue}
		2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
1707		2469
1708	(shift @$queue)->[1]->($msg);	2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1709		2472
1710	push @{ $ns->{query_queue} }, @$queue;	2473	push @{ $ns->{query_queue} }, @$queue;
1711		2474
1712	if (@{ $ns->{query_queue} } == @$queue) {	2475	if (@{ $ns->{query_queue} } == @$queue) {
1713	if (@$queue) {	2476	if (@$queue) {
…		…
1715	} else {	2478	} else {
1716	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1717	}	2480	}
1718	}	2481	}
1719	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
1720	);	2501	);
1721		2502
1722	=item $client->coro (\&cb)	2503	=item $client->async (\&cb)
1723		2504
1724	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
1725	be automatically cancelled when the client gets destroyed (e.g. on logout,	2506	be automatically cancelled when the client gets destroyed (e.g. on logout,
1726	or loss of connection).	2507	or loss of connection).
1727		2508
1728	=cut	2509	=cut
1729		2510
1730	sub cf::client::coro {	2511	sub cf::client::async {
1731	my ($self, $cb) = @_;	2512	my ($self, $cb) = @_;
1732		2513
1733	my $coro; $coro = async {	2514	my $coro = &Coro::async ($cb);
1734	eval {
1735	$cb->();
1736	};
1737	warn $@ if $@;
1738	};
1739		2515
1740	$coro->on_destroy (sub {	2516	$coro->on_destroy (sub {
1741	delete $self->{_coro}{$coro+0};	2517	delete $self->{_coro}{$coro+0};
1742	});	2518	});
1743		2519
…		…
1776		2552
1777	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
1778		2554
1779	=pod	2555	=pod
1780		2556
1781	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
1782		2558
1783	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
1784	cf::object::player player	2560	cf::object::player player
1785	cf::player peaceful	2561	cf::player peaceful
1786	cf::map trigger	2562	cf::map trigger
…		…
1867	=back	2643	=back
1868		2644
1869	=cut	2645	=cut
1870		2646
1871	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
1872		2649
1873	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
1874		2652
1875	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
1876	currently store anything that can be serialised using Storable, which
1877	excludes objects.
1878		2654
1879	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
1880	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
1881		2658
1882	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
1883		2660
1884	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
1885		2663
1886	Return a hashref for use by the extension C<$family>, which can be
1887	modified. After modifications, you have to call C<cf::db_dirty> or
1888	C<cf::db_sync>.
1889
1890	=item $value = cf::db_get $family => $key
1891
1892	Returns a single value from the database
1893
1894	=item cf::db_put $family => $hashref
1895
1896	Stores the given family hashref into the database. Updates are delayed, if
1897	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1898
1899	=item cf::db_put $family => $key => $value
1900
1901	Stores the given C<$value> in the family hash. Updates are delayed, if you
1902	want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_dirty
1905
1906	Marks the database as dirty, to be updated at a later time.
1907
1908	=item cf::db_sync
1909
1910	Immediately write the database to disk I<if it is dirty>.
1911
1912	=cut
1913
1914	our $DB;
1915
1916	{
1917	my $path = cf::localdir . "/database.pst";
1918
1919	sub db_load() {
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
1922		2666
1923	my $pid;	2667	while (my ($face, $info) = each %$faces) {
1924		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1925	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1926	waitpid $pid, 0 if $pid;	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1927	if (0 == ($pid = fork)) {	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1928	$DB->{_meta}{version} = 1;	2672	Coro::cede;
1929	Storable::nstore $DB, "$path~";
1930	rename "$path~", $path;
1931	cf::_exit 0 if defined $pid;
1932	}
1933	}
1934
1935	my $dirty;
1936
1937	sub db_sync() {
1938	db_save if $dirty;
1939	undef $dirty;
1940	}
1941
1942	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1943	db_sync;
1944	});
1945
1946	sub db_dirty() {
1947	$dirty = 1;
1948	$idle->start;
1949	}
1950
1951	sub db_get($;$) {
1952	@_ >= 2
1953	? $DB->{$_[0]}{$_[1]}
1954	: ($DB->{$_[0]} ||= { })
1955	}
1956
1957	sub db_put($$;$) {
1958	if (@_ >= 3) {
1959	$DB->{$_[0]}{$_[1]} = $_[2];
1960	} else {
1961	$DB->{$_[0]} = $_[1];
1962	}
1963	db_dirty;
1964	}
1965
1966	cf::global->attach (
1967	prio => 10000,
1968	on_cleanup => sub {
1969	db_sync;
1970	},	2673	}
1971	);
1972	}
1973		2674
1974	#############################################################################	2675	while (my ($face, $info) = each %$faces) {
1975	# the server's main()	2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	#d# NEED to laod twice to resolve forward references
		2716	# this really needs to be done in an extra post-pass
		2717	# (which needs to be synchronous, so solve it differently)
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	}
		2721
		2722	sub reload_treasures {
		2723	load_resource_file "$DATADIR/treasures"
		2724	or die "unable to load treasurelists\n";
		2725	}
		2726
		2727	sub reload_resources {
		2728	warn "reloading resource files...\n";
		2729
		2730	reload_regions;
		2731	reload_facedata;
		2732	#reload_archetypes;#d#
		2733	reload_archetypes;
		2734	reload_treasures;
		2735
		2736	warn "finished reloading resource files\n";
		2737	}
		2738
		2739	sub init {
		2740	reload_resources;
		2741	}
1976		2742
1977	sub cfg_load {	2743	sub cfg_load {
1978	open my $fh, "<:utf8", cf::confdir . "/config"	2744	open my $fh, "<:utf8", "$CONFDIR/config"
1979	or return;	2745	or return;
1980		2746
1981	local $/;	2747	local $/;
1982	*CFG = YAML::Syck::Load <$fh>;	2748	*CFG = YAML::Syck::Load <$fh>;
		2749
		2750	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2751
		2752	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2753	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2754
		2755	if (exists $CFG{mlockall}) {
		2756	eval {
		2757	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2758	and die "WARNING: m(un)lockall failed: $!\n";
		2759	};
		2760	warn $@ if $@;
		2761	}
1983	}	2762	}
1984		2763
1985	sub main {	2764	sub main {
1986	# we must not ever block the main coroutine	2765	# we must not ever block the main coroutine
1987	local $Coro::idle = sub {	2766	local $Coro::idle = sub {
1988	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2767	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1989	(Coro::unblock_sub {	2768	(async {
1990	Event::one_event;	2769	Event::one_event;
1991	})->();	2770	})->prio (Coro::PRIO_MAX);
1992	};	2771	};
1993		2772
1994	cfg_load;	2773	cfg_load;
1995	db_load;	2774	db_init;
1996	load_extensions;	2775	load_extensions;
		2776
		2777	$TICK_WATCHER->start;
1997	Event::loop;	2778	Event::loop;
1998	}	2779	}
1999		2780
2000	#############################################################################	2781	#############################################################################
2001	# initialisation	2782	# initialisation and cleanup
2002		2783
		2784	# install some emergency cleanup handlers
		2785	BEGIN {
		2786	for my $signal (qw(INT HUP TERM)) {
		2787	Event->signal (
		2788	reentrant => 0,
		2789	data => WF_AUTOCANCEL,
		2790	signal => $signal,
		2791	prio => 0,
		2792	cb => sub {
		2793	cf::cleanup "SIG$signal";
		2794	},
		2795	);
		2796	}
		2797	}
		2798
		2799	sub write_runtime {
		2800	my $runtime = "$LOCALDIR/runtime";
		2801
		2802	# first touch the runtime file to show we are still running:
		2803	# the fsync below can take a very very long time.
		2804
		2805	IO::AIO::aio_utime $runtime, undef, undef;
		2806
		2807	my $guard = cf::lock_acquire "write_runtime";
		2808
		2809	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2810	or return;
		2811
		2812	my $value = $cf::RUNTIME + 90 + 10;
		2813	# 10 is the runtime save interval, for a monotonic clock
		2814	# 60 allows for the watchdog to kill the server.
		2815
		2816	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2817	and return;
		2818
		2819	# always fsync - this file is important
		2820	aio_fsync $fh
		2821	and return;
		2822
		2823	# touch it again to show we are up-to-date
		2824	aio_utime $fh, undef, undef;
		2825
		2826	close $fh
		2827	or return;
		2828
		2829	aio_rename "$runtime~", $runtime
		2830	and return;
		2831
		2832	warn "runtime file written.\n";
		2833
		2834	1
		2835	}
		2836
		2837	sub emergency_save() {
		2838	my $freeze_guard = cf::freeze_mainloop;
		2839
		2840	warn "enter emergency perl save\n";
		2841
		2842	cf::sync_job {
		2843	# use a peculiar iteration method to avoid tripping on perl
		2844	# refcount bugs in for. also avoids problems with players
		2845	# and maps saved/destroyed asynchronously.
		2846	warn "begin emergency player save\n";
		2847	for my $login (keys %cf::PLAYER) {
		2848	my $pl = $cf::PLAYER{$login} or next;
		2849	$pl->valid or next;
		2850	$pl->save;
		2851	}
		2852	warn "end emergency player save\n";
		2853
		2854	warn "begin emergency map save\n";
		2855	for my $path (keys %cf::MAP) {
		2856	my $map = $cf::MAP{$path} or next;
		2857	$map->valid or next;
		2858	$map->save;
		2859	}
		2860	warn "end emergency map save\n";
		2861
		2862	warn "begin emergency database checkpoint\n";
		2863	BDB::db_env_txn_checkpoint $DB_ENV;
		2864	warn "end emergency database checkpoint\n";
		2865	};
		2866
		2867	warn "leave emergency perl save\n";
		2868	}
		2869
		2870	sub post_cleanup {
		2871	my ($make_core) = @_;
		2872
		2873	warn Carp::longmess "post_cleanup backtrace"
		2874	if $make_core;
		2875	}
		2876
2003	sub reload() {	2877	sub do_reload_perl() {
2004	# can/must only be called in main	2878	# can/must only be called in main
2005	if ($Coro::current != $Coro::main) {	2879	if ($Coro::current != $Coro::main) {
2006	warn "can only reload from main coroutine\n";	2880	warn "can only reload from main coroutine";
2007	return;	2881	return;
2008	}	2882	}
2009		2883
2010	warn "reloading...";	2884	warn "reloading...";
2011		2885
2012	local $FREEZE = 1;	2886	warn "entering sync_job";
		2887
		2888	cf::sync_job {
		2889	cf::write_runtime; # external watchdog should not bark
2013	cf::emergency_save;	2890	cf::emergency_save;
		2891	cf::write_runtime; # external watchdog should not bark
2014		2892
2015	eval {	2893	warn "syncing database to disk";
		2894	BDB::db_env_txn_checkpoint $DB_ENV;
		2895
2016	# if anything goes wrong in here, we should simply crash as we already saved	2896	# if anything goes wrong in here, we should simply crash as we already saved
2017		2897
2018	# cancel all watchers	2898	warn "cancelling all WF_AUTOCANCEL watchers";
2019	for (Event::all_watchers) {	2899	for (Event::all_watchers) {
2020	$_->cancel if $_->data & WF_AUTOCANCEL;	2900	$_->cancel if $_->data & WF_AUTOCANCEL;
2021	}	2901	}
2022		2902
		2903	warn "flushing outstanding aio requests";
		2904	for (;;) {
		2905	BDB::flush;
		2906	IO::AIO::flush;
		2907	Coro::cede;
		2908	last unless IO::AIO::nreqs || BDB::nreqs;
		2909	warn "iterate...";
		2910	}
		2911
		2912	++$RELOAD;
		2913
2023	# cancel all extension coros	2914	warn "cancelling all extension coros";
2024	$_->cancel for values %EXT_CORO;	2915	$_->cancel for values %EXT_CORO;
2025	%EXT_CORO = ();	2916	%EXT_CORO = ();
2026		2917
2027	# unload all extensions	2918	warn "removing commands";
2028	for (@exts) {	2919	%COMMAND = ();
		2920
		2921	warn "removing ext/exti commands";
		2922	%EXTCMD = ();
		2923	%EXTICMD = ();
		2924
		2925	warn "unloading/nuking all extensions";
		2926	for my $pkg (@EXTS) {
2029	warn "unloading <$_>";	2927	warn "... unloading $pkg";
2030	unload_extension $_;	2928
		2929	if (my $cb = $pkg->can ("unload")) {
		2930	eval {
		2931	$cb->($pkg);
		2932	1
		2933	} or warn "$pkg unloaded, but with errors: $@";
2031	}	2934	}
2032		2935
		2936	warn "... nuking $pkg";
		2937	Symbol::delete_package $pkg;
		2938	}
		2939
2033	# unload all modules loaded from $LIBDIR	2940	warn "unloading all perl modules loaded from $LIBDIR";
2034	while (my ($k, $v) = each %INC) {	2941	while (my ($k, $v) = each %INC) {
2035	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2942	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2036		2943
2037	warn "removing <$k>";	2944	warn "... unloading $k";
2038	delete $INC{$k};	2945	delete $INC{$k};
2039		2946
2040	$k =~ s/\.pm$//;	2947	$k =~ s/\.pm$//;
2041	$k =~ s/\//::/g;	2948	$k =~ s/\//::/g;
2042		2949
…		…
2045	}	2952	}
2046		2953
2047	Symbol::delete_package $k;	2954	Symbol::delete_package $k;
2048	}	2955	}
2049		2956
2050	# sync database to disk
2051	cf::db_sync;
2052	IO::AIO::flush;
2053
2054	# get rid of safe::, as good as possible	2957	warn "getting rid of safe::, as good as possible";
2055	Symbol::delete_package "safe::$_"	2958	Symbol::delete_package "safe::$_"
2056	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2057		2960
2058	# remove register_script_function callbacks
2059	# TODO
2060
2061	# unload cf.pm "a bit"	2961	warn "unloading cf.pm \"a bit\"";
2062	delete $INC{"cf.pm"};	2962	delete $INC{"cf.pm"};
		2963	delete $INC{"cf/pod.pm"};
2063		2964
2064	# don't, removes xs symbols, too,	2965	# don't, removes xs symbols, too,
2065	# and global variables created in xs	2966	# and global variables created in xs
2066	#Symbol::delete_package __PACKAGE__;	2967	#Symbol::delete_package __PACKAGE__;
2067		2968
2068	# reload cf.pm	2969	warn "unload completed, starting to reload now";
		2970
2069	warn "reloading cf.pm";	2971	warn "reloading cf.pm";
2070	require cf;	2972	require cf;
2071	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2973	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2072		2974
2073	# load config and database again	2975	warn "loading config and database again";
2074	cf::cfg_load;	2976	cf::cfg_load;
2075	cf::db_load;
2076		2977
2077	# load extensions
2078	warn "load extensions";	2978	warn "loading extensions";
2079	cf::load_extensions;	2979	cf::load_extensions;
2080		2980
2081	# reattach attachments to objects	2981	warn "reattaching attachments to objects/players";
2082	warn "reattach";	2982	_global_reattach; # objects, sockets
2083	_global_reattach;	2983	warn "reattaching attachments to maps";
2084	};	2984	reattach $_ for values %MAP;
		2985	warn "reattaching attachments to players";
		2986	reattach $_ for values %PLAYER;
2085		2987
2086	if ($@) {	2988	warn "leaving sync_job";
		2989
		2990	1
		2991	} or do {
2087	warn $@;	2992	warn $@;
2088	warn "error while reloading, exiting.";	2993	warn "error while reloading, exiting.";
2089	exit 1;	2994	exit 1;
2090	}	2995	};
2091		2996
2092	warn "reloaded successfully";	2997	warn "reloaded";
2093	};	2998	};
2094		2999
2095	#############################################################################	3000	our $RELOAD_WATCHER; # used only during reload
2096		3001
2097	unless ($LINK_MAP) {	3002	sub reload_perl() {
2098	$LINK_MAP = cf::map::new;	3003	# doing reload synchronously and two reloads happen back-to-back,
		3004	# coro crashes during coro_state_free->destroy here.
2099		3005
2100	$LINK_MAP->width (41);	3006	$RELOAD_WATCHER ||= Event->timer (
2101	$LINK_MAP->height (41);	3007	reentrant => 0,
2102	$LINK_MAP->alloc;
2103	$LINK_MAP->path ("{link}");
2104	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2105	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2106
2107	# dirty hack because... archetypes are not yet loaded
2108	Event->timer (
2109	after => 2,	3008	after => 0,
		3009	data => WF_AUTOCANCEL,
2110	cb => sub {	3010	cb => sub {
2111	$_[0]->w->cancel;	3011	do_reload_perl;
2112		3012	undef $RELOAD_WATCHER;
2113	# provide some exits "home"
2114	my $exit = cf::object::new "exit";
2115
2116	$exit->slaying ($EMERGENCY_POSITION->[0]);
2117	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2118	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2119
2120	$LINK_MAP->insert ($exit->clone, 19, 19);
2121	$LINK_MAP->insert ($exit->clone, 19, 20);
2122	$LINK_MAP->insert ($exit->clone, 19, 21);
2123	$LINK_MAP->insert ($exit->clone, 20, 19);
2124	$LINK_MAP->insert ($exit->clone, 20, 21);
2125	$LINK_MAP->insert ($exit->clone, 21, 19);
2126	$LINK_MAP->insert ($exit->clone, 21, 20);
2127	$LINK_MAP->insert ($exit->clone, 21, 21);
2128
2129	$exit->destroy;
2130	});	3013	},
2131		3014	);
2132	$LINK_MAP->{deny_save} = 1;
2133	$LINK_MAP->{deny_reset} = 1;
2134
2135	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2136	}	3015	}
2137
2138	register "<global>", __PACKAGE__;
2139		3016
2140	register_command "reload" => sub {	3017	register_command "reload" => sub {
2141	my ($who, $arg) = @_;	3018	my ($who, $arg) = @_;
2142		3019
2143	if ($who->flag (FLAG_WIZ)) {	3020	if ($who->flag (FLAG_WIZ)) {
2144	$who->message ("start of reload.");
2145	reload;
2146	$who->message ("end of reload.");	3021	$who->message ("reloading server.");
		3022	async { reload_perl };
2147	}	3023	}
2148	};	3024	};
2149		3025
2150	unshift @INC, $LIBDIR;	3026	unshift @INC, $LIBDIR;
2151		3027
		3028	my $bug_warning = 0;
		3029
		3030	our @WAIT_FOR_TICK;
		3031	our @WAIT_FOR_TICK_BEGIN;
		3032
		3033	sub wait_for_tick {
		3034	return unless $TICK_WATCHER->is_active;
		3035	return if $Coro::current == $Coro::main;
		3036
		3037	my $signal = new Coro::Signal;
		3038	push @WAIT_FOR_TICK, $signal;
		3039	$signal->wait;
		3040	}
		3041
		3042	sub wait_for_tick_begin {
		3043	return unless $TICK_WATCHER->is_active;
		3044	return if $Coro::current == $Coro::main;
		3045
		3046	my $signal = new Coro::Signal;
		3047	push @WAIT_FOR_TICK_BEGIN, $signal;
		3048	$signal->wait;
		3049	}
		3050
		3051	my $min = 1e6;#d#
		3052	my $avg = 10;
2152	$TICK_WATCHER = Event->timer (	3053	$TICK_WATCHER = Event->timer (
2153	reentrant => 0,	3054	reentrant => 0,
		3055	parked => 1,
2154	prio => 0,	3056	prio => 0,
2155	at => $NEXT_TICK || $TICK,	3057	at => $NEXT_TICK || $TICK,
2156	data => WF_AUTOCANCEL,	3058	data => WF_AUTOCANCEL,
2157	cb => sub {	3059	cb => sub {
2158	unless ($FREEZE) {	3060	if ($Coro::current != $Coro::main) {
		3061	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3062	unless ++$bug_warning > 10;
		3063	return;
		3064	}
		3065
		3066	$NOW = $tick_start = Event::time;
		3067
2159	cf::server_tick; # one server iteration	3068	cf::server_tick; # one server iteration
2160	$RUNTIME += $TICK;	3069
		3070	0 && sync_job {#d#
		3071	for(1..10) {
		3072	my $t = Event::time;
		3073	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3074	or die;
		3075
		3076	$map->width (50);
		3077	$map->height (50);
		3078	$map->alloc;
		3079	$map->_load_objects ("/tmp/x.map", 1);
		3080	my $t = Event::time - $t;
		3081
		3082	#next unless $t < 0.0013;#d#
		3083	if ($t < $min) {
		3084	$min = $t;
		3085	}
		3086	$avg = $avg * 0.99 + $t * 0.01;
		3087	}
		3088	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3089	exit 0;
		3090	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2161	}	3091	};
2162		3092
		3093	$RUNTIME += $TICK;
2163	$NEXT_TICK += $TICK;	3094	$NEXT_TICK += $TICK;
2164		3095
		3096	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3097	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3098	Coro::async_pool {
		3099	write_runtime
		3100	or warn "ERROR: unable to write runtime file: $!";
		3101	};
		3102	}
		3103
		3104	# my $AFTER = Event::time;
		3105	# warn $AFTER - $NOW;#d#
		3106
		3107	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3108	$sig->send;
		3109	}
		3110	while (my $sig = shift @WAIT_FOR_TICK) {
		3111	$sig->send;
		3112	}
		3113
		3114	$NOW = Event::time;
		3115
2165	# if we are delayed by four ticks or more, skip them all	3116	# if we are delayed by four ticks or more, skip them all
2166	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3117	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2167		3118
2168	$TICK_WATCHER->at ($NEXT_TICK);	3119	$TICK_WATCHER->at ($NEXT_TICK);
2169	$TICK_WATCHER->start;	3120	$TICK_WATCHER->start;
		3121
		3122	$LOAD = ($NOW - $tick_start) / $TICK;
		3123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3124
		3125	_post_tick;
		3126
		3127
2170	},	3128	},
2171	);	3129	);
2172		3130
		3131	{
2173	IO::AIO::max_poll_time $TICK * 0.2;	3132	BDB::max_poll_time $TICK * 0.1;
2174		3133	$BDB_POLL_WATCHER = Event->io (
2175	Event->io (	3134	reentrant => 0,
2176	fd => IO::AIO::poll_fileno,	3135	fd => BDB::poll_fileno,
2177	poll => 'r',	3136	poll => 'r',
2178	prio => 5,	3137	prio => 0,
2179	data => WF_AUTOCANCEL,
2180	cb => \&IO::AIO::poll_cb,
2181	);
2182
2183	Event->timer (
2184	data => WF_AUTOCANCEL,	3138	data => WF_AUTOCANCEL,
2185	after => 0,	3139	cb => \&BDB::poll_cb,
2186	interval => 10,	3140	);
2187	cb => sub {	3141	BDB::min_parallel 8;
2188	(Coro::unblock_sub {	3142
2189	write_runtime	3143	BDB::set_sync_prepare {
2190	or warn "ERROR: unable to write runtime file: $!";	3144	my $status;
		3145	my $current = $Coro::current;
		3146	(
		3147	sub {
		3148	$status = $!;
		3149	$current->ready; undef $current;
		3150	},
		3151	sub {
		3152	Coro::schedule while defined $current;
		3153	$! = $status;
		3154	},
		3155	)
		3156	};
		3157
		3158	unless ($DB_ENV) {
		3159	$DB_ENV = BDB::db_env_create;
		3160
		3161	cf::sync_job {
		3162	eval {
		3163	BDB::db_env_open
		3164	$DB_ENV,
		3165	$BDBDIR,
		3166	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3167	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3168	0666;
		3169
		3170	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3171
		3172	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3173	$DB_ENV->set_lk_detect;
		3174	};
		3175
		3176	cf::cleanup "db_env_open(db): $@" if $@;
2191	})->();	3177	};
2192	},	3178	}
2193	);	3179	}
		3180
		3181	{
		3182	IO::AIO::min_parallel 8;
		3183
		3184	undef $Coro::AIO::WATCHER;
		3185	IO::AIO::max_poll_time $TICK * 0.1;
		3186	$AIO_POLL_WATCHER = Event->io (
		3187	reentrant => 0,
		3188	data => WF_AUTOCANCEL,
		3189	fd => IO::AIO::poll_fileno,
		3190	poll => 'r',
		3191	prio => 6,
		3192	cb => \&IO::AIO::poll_cb,
		3193	);
		3194	}
		3195
		3196	my $_log_backtrace;
		3197
		3198	sub _log_backtrace {
		3199	my ($msg, @addr) = @_;
		3200
		3201	$msg =~ s/\n//;
		3202
		3203	# limit the # of concurrent backtraces
		3204	if ($_log_backtrace < 2) {
		3205	++$_log_backtrace;
		3206	async {
		3207	my @bt = fork_call {
		3208	@addr = map { sprintf "%x", $_ } @addr;
		3209	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3210	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3211	or die "addr2line: $!";
		3212
		3213	my @funcs;
		3214	my @res = <$fh>;
		3215	chomp for @res;
		3216	while (@res) {
		3217	my ($func, $line) = splice @res, 0, 2, ();
		3218	push @funcs, "[$func] $line";
		3219	}
		3220
		3221	@funcs
		3222	};
		3223
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] $_\n" for @bt;
		3226	--$_log_backtrace;
		3227	};
		3228	} else {
		3229	LOG llevInfo, "[ABT] $msg\n";
		3230	LOG llevInfo, "[ABT] [suppressed]\n";
		3231	}
		3232	}
		3233
		3234	# load additional modules
		3235	use cf::pod;
		3236
		3237	END { cf::emergency_save }
2194		3238
2195	1	3239	1
2196		3240

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