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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.126 by root, Tue Jan 2 23:12:47 2007 UTC vs.
Revision 1.290 by root, Mon Jul 2 03:15:30 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->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) = @_;
…		…
939	cf::override;	1086	cf::override;
940	},	1087	},
941	on_extcmd => sub {	1088	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
943		1090
944	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($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 " . $self->ns->{json_coder}->encode (\%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	$map	1720	1
1178	}	1721	}
1179		1722
1180	sub find_map;	1723	sub find;
1181	sub find_map {	1724	sub find {
1182	my ($path, $origin) = @_;	1725	my ($path, $origin) = @_;
1183		1726
1184	#warn "find_map<$path,$origin>\n";#d#
1185
1186	$path = new cf::path $path, $origin && $origin->path;	1727	$path = normalise $path, $origin && $origin->path;
1187	my $key = $path->as_string;
1188		1728
1189	cf::lock_wait "map_find:$key";	1729	cf::lock_wait "map_find:$path";
1190		1730
1191	$cf::MAP{$key} || do {	1731	$cf::MAP{$path} || do {
1192	my $guard = cf::lock_acquire "map_find:$key";	1732	my $guard = cf::lock_acquire "map_find:$path";
1193		1733	my $map = new_from_path cf::map $path
1194	# do it the slow way
1195	my $map = try_load_header $path->save_path;
1196
1197	if ($map) {
1198	# safety
1199	$map->{instantiate_time} = $cf::RUNTIME
1200	if $map->{instantiate_time} > $cf::RUNTIME;
1201	} else {
1202	if (my $rmp = $path->random_map_params) {
1203	$map = generate_random_map $key, $rmp;
1204	} else {
1205	$map = try_load_header $path->load_path;
1206	}
1207
1208	$map or return;	1734	or return;
1209		1735
1210	$map->{load_original} = 1;
1211	$map->{instantiate_time} = $cf::RUNTIME;
1212	$map->instantiate;
1213
1214	# per-player maps become, after loading, normal maps
1215	$map->per_player (0) if $path->{user_rel};
1216	}
1217
1218	$map->path ($key);
1219	$map->{path} = $path;
1220	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1221	$map->last_access ($cf::RUNTIME);
1222		1737
1223	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;
1224	$map->reset;	1744	$map->reset;
1225	undef $guard;	1745	undef $guard;
1226	$map = find_map $path	1746	return find $path;
1227	or return;
1228	}	1747	}
1229		1748
1230	$cf::MAP{$key} = $map	1749	$cf::MAP{$path} = $map
1231	}	1750	}
1232	}	1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
1233		1755
1234	sub load {	1756	sub load {
1235	my ($self) = @_;	1757	my ($self) = @_;
1236		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
1237	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1764	my $guard = cf::lock_acquire "map_load:$path";
1239		1765
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1241		1767
1242	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1243		1769
1244	$self->alloc;	1770	$self->alloc;
		1771
		1772	$self->pre_load;
		1773	Coro::cede;
		1774
1245	$self->load_objects ($self->{load_path}, 1)	1775	$self->_load_objects ($self->{load_path}, 1)
1246	or return;	1776	or return;
1247		1777
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1779	if delete $self->{load_original};
1250		1780
1251	if (my $uniq = $path->uniq_path) {	1781	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1782	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1783	if (aio_open $uniq, O_RDONLY, 0) {
1254	$self->clear_unique_items;	1784	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1785	$self->_load_objects ($uniq, 0);
1256	}	1786	}
1257	}	1787	}
1258		1788
		1789	Coro::cede;
1259	# now do the right thing for maps	1790	# now do the right thing for maps
1260	$self->link_multipart_objects;	1791	$self->link_multipart_objects;
1261
1262	if ($self->{path}->is_style_map) {
1263	$self->{deny_save} = 1;
1264	$self->{deny_reset} = 1;
1265	} else {
1266	$self->fix_auto_apply;
1267	$self->decay_objects;
1268	$self->update_buttons;
1269	$self->set_darkness_map;
1270	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1271	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;
1272	$self->activate;	1803	$self->activate;
1273	}	1804	}
1274		1805
1275	$self->in_memory (cf::MAP_IN_MEMORY);	1806	$self->in_memory (cf::MAP_IN_MEMORY);
1276	}	1807	}
1277		1808
1278	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	$neigh->load;
		1845	}
		1846	}
		1847
		1848	sub find_sync {
1279	my ($path, $origin) = @_;	1849	my ($path, $origin) = @_;
1280		1850
1281	#warn "load_map_sync<$path, $origin>\n";#d#	1851	cf::sync_job { find $path, $origin }
		1852	}
1282		1853
1283	cf::sync_job {	1854	sub do_load_sync {
1284	my $map = cf::map::find_map $path, $origin	1855	my ($map) = @_;
1285	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;
1286	$map->load;	1878	$map->load;
1287	$map	1879
		1880	delete $MAP_PREFETCH{$path};
		1881	}
		1882	}
		1883	undef $MAP_PREFETCHER;
1288	}	1884	};
		1885	$MAP_PREFETCHER->prio (6);
		1886
		1887	()
1289	}	1888	}
1290		1889
1291	sub save {	1890	sub save {
1292	my ($self) = @_;	1891	my ($self) = @_;
1293		1892
		1893	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1894
1294	$self->{last_save} = $cf::RUNTIME;	1895	$self->{last_save} = $cf::RUNTIME;
1295		1896
1296	return unless $self->dirty;	1897	return unless $self->dirty;
1297		1898
1298	my $save = $self->{path}->save_path; utf8::encode $save;	1899	my $save = $self->save_path; utf8::encode $save;
1299	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1900	my $uniq = $self->uniq_path; utf8::encode $uniq;
1300		1901
1301	$self->{load_path} = $save;	1902	$self->{load_path} = $save;
1302		1903
1303	return if $self->{deny_save};	1904	return if $self->{deny_save};
1304		1905
		1906	local $self->{last_access} = $self->last_access;#d#
		1907
		1908	cf::async {
		1909	$_->contr->save for $self->players;
		1910	};
		1911
1305	if ($uniq) {	1912	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1913	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1914	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1915	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1916	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	1917	}
1311	}	1918	}
1312		1919
1313	sub swap_out {	1920	sub swap_out {
1314	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;
1315		1927
1316	return if $self->players;	1928	return if $self->players;
1317	return if $self->in_memory != cf::MAP_IN_MEMORY;	1929	return if $self->in_memory != cf::MAP_IN_MEMORY;
1318	return if $self->{deny_save};	1930	return if $self->{deny_save};
1319		1931
1320	$self->save;
1321	$self->clear;	1932	$self->clear;
1322	$self->in_memory (cf::MAP_SWAPPED);	1933	$self->in_memory (cf::MAP_SWAPPED);
1323	}	1934	}
1324		1935
1325	sub reset_at {	1936	sub reset_at {
1326	my ($self) = @_;	1937	my ($self) = @_;
1327		1938
1328	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1329	return 1e99 if $self->{path}{user_rel};
1330	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1331		1941
1332	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1333	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1334		1944
…		…
1339	my ($self) = @_;	1949	my ($self) = @_;
1340		1950
1341	$self->reset_at <= $cf::RUNTIME	1951	$self->reset_at <= $cf::RUNTIME
1342	}	1952	}
1343		1953
1344	sub unlink_save {
1345	my ($self) = @_;
1346
1347	utf8::encode (my $save = $self->{path}->save_path);
1348	aioreq_pri 3; IO::AIO::aio_unlink $save;
1349	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1350	}
1351
1352	sub rename {
1353	my ($self, $new_path) = @_;
1354
1355	$self->unlink_save;
1356
1357	delete $cf::MAP{$self->path};
1358	$self->{path} = new cf::path $new_path;
1359	$self->path ($self->{path}->as_string);
1360	$cf::MAP{$self->path} = $self;
1361
1362	$self->save;
1363	}
1364
1365	sub reset {	1954	sub reset {
1366	my ($self) = @_;	1955	my ($self) = @_;
1367		1956
		1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1958
1368	return if $self->players;	1959	return if $self->players;
1369	return if $self->{path}{user_rel};#d#
1370		1960
1371	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	}
1372		1972
1373	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
		1974
		1975	$self->clear;
1374		1976
1375	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1376		1978
1377	$self->unlink_save;	1979	$self->unlink_save;
1378	$self->destroy;	1980	$self->destroy;
…		…
1381	my $nuke_counter = "aaaa";	1983	my $nuke_counter = "aaaa";
1382		1984
1383	sub nuke {	1985	sub nuke {
1384	my ($self) = @_;	1986	my ($self) = @_;
1385		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
1386	$self->{deny_save} = 1;	1994	$self->{deny_save} = 1;
1387	$self->reset_timeout (1);	1995	$self->reset_timeout (1);
1388	$self->rename ("{nuke}/" . ($nuke_counter++));	1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
1389	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1390	}	2001	}
1391		2002
1392	sub customise_for {	2003	=item $maps = cf::map::tmp_maps
1393	my ($map, $ob) = @_;
1394		2004
1395	if ($map->per_player) {	2005	Returns an arrayref with all map paths of currently instantiated and saved
1396	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
1397	}	2011	[
1398		2012	map {
1399	$map	2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
1400	}	2019	}
1401		2020
1402	sub emergency_save {	2021	=item $maps = cf::map::random_maps
1403	local $cf::FREEZE = 1;
1404		2022
1405	warn "enter emergency map save\n";	2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
1406		2025
1407	cf::sync_job {	2026	=cut
1408	warn "begin emergency map save\n";
1409	$_->save for values %cf::MAP;
1410	};
1411		2027
1412	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	]
1413	}	2055	}
1414		2056
1415	package cf;	2057	package cf;
1416		2058
1417	=back	2059	=back
1418		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
1419		2087
1420	=head3 cf::object::player	2088	=head3 cf::object::player
1421		2089
1422	=over 4	2090	=over 4
1423		2091
…		…
1437		2105
1438	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1439		2107
1440	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1441	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1442	} 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 {
1443	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1444	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1445	}	2127	}
1446	}	2128	}
1447		2129
1448	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1449		2131
…		…
1463		2145
1464	=item $player_object->enter_link	2146	=item $player_object->enter_link
1465		2147
1466	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}>).
1467		2149
1468	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
1469	I<MUST> call C<leave_link> as soon as possible, though.	2151	I<MUST> call C<leave_link> as soon as possible, though.
1470		2152
		2153	Will never block.
		2154
1471	=item $player_object->leave_link ($map, $x, $y)	2155	=item $player_object->leave_link ($map, $x, $y)
1472		2156
1473	Moves the player out of the specila link map onto the given map. If the	2157	Moves the player out of the special C<{link}> map onto the specified
1474	map is not valid (or omitted), the player will be moved back to the	2158	map. If the map is not valid (or omitted), the player will be moved back
1475	location he/she was before the call to C<enter_link>, or, if that fails,	2159	to the location he/she was before the call to C<enter_link>, or, if that
1476	to the emergency map position.	2160	fails, to the emergency map position.
1477		2161
1478	Might block.	2162	Might block.
1479		2163
1480	=cut	2164	=cut
		2165
		2166	sub link_map {
		2167	unless ($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	$LINK_MAP
		2174	}
1481		2175
1482	sub cf::object::player::enter_link {	2176	sub cf::object::player::enter_link {
1483	my ($self) = @_;	2177	my ($self) = @_;
1484		2178
1485	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1486		2180
1487	return if $self->map == $LINK_MAP;	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1488		2182
1489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1490	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1491		2185
1492	$self->enter_map ($LINK_MAP, 20, 20);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1493	}	2187	}
1494		2188
1495	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1496	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1497		2193
1498	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1499		2195
1500	unless ($map) {	2196	unless ($map) {
1501	# restore original map position	2197	# restore original map position
1502	($map, $x, $y) = @{ $link_pos || [] };	2198	($map, $x, $y) = @{ $link_pos || [] };
1503	$map = cf::map::find_map $map;	2199	$map = cf::map::find $map;
1504		2200
1505	unless ($map) {	2201	unless ($map) {
1506	($map, $x, $y) = @$EMERGENCY_POSITION;	2202	($map, $x, $y) = @$EMERGENCY_POSITION;
1507	$map = cf::map::find_map $map	2203	$map = cf::map::find $map
1508	or die "FATAL: cannot load emergency map\n";	2204	or die "FATAL: cannot load emergency map\n";
1509	}	2205	}
1510	}	2206	}
1511		2207
1512	($x, $y) = (-1, -1)	2208	($x, $y) = (-1, -1)
…		…
1515	# use -1 or undef as default coordinates, not 0, 0	2211	# use -1 or undef as default coordinates, not 0, 0
1516	($x, $y) = ($map->enter_x, $map->enter_y)	2212	($x, $y) = ($map->enter_x, $map->enter_y)
1517	if $x <=0 && $y <= 0;	2213	if $x <=0 && $y <= 0;
1518		2214
1519	$map->load;	2215	$map->load;
		2216	$map->load_diag;
1520		2217
		2218	return unless $self->contr->active;
1521	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1522	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1523	}	2223	}
1524		2224
1525	cf::player->attach (
1526	on_logout => sub {
1527	my ($pl) = @_;
1528
1529	# abort map switching before logout
1530	if ($pl->ob->{_link_pos}) {
1531	cf::sync_job {
1532	$pl->ob->leave_link
1533	};
1534	}
1535	},
1536	on_login => sub {
1537	my ($pl) = @_;
1538
1539	# try to abort aborted map switching on player login :)
1540	# should happen only on crashes
1541	if ($pl->ob->{_link_pos}) {
1542	$pl->ob->enter_link;
1543	Coro::async {
1544	# we need this sleep as the login has a concurrent enter_exit running
1545	# and this sleep increases chances of the player not ending up in scorn
1546	Coro::Timer::sleep 1;
1547	$pl->ob->leave_link;
1548	};
1549	}
1550	},
1551	);
1552
1553	=item $player_object->goto_map ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1554		2226
1555	=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.
1556		2231
		2232	=cut
		2233
		2234	our $GOTOGEN;
		2235
1557	sub cf::object::player::goto_map {	2236	sub cf::object::player::goto {
1558	my ($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;
1559		2241
1560	$self->enter_link;	2242	$self->enter_link;
1561		2243
1562	(Coro::async {	2244	(async {
1563	$path = new cf::path $path;	2245	my $map = eval {
1564
1565	my $map = cf::map::find_map $path->as_string;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1566	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
1567		2250	$map = $check->($map) if $check && $map;
1568	# warn "entering ", $map->path, " at ($x, $y)\n"	2251	} else {
1569	# if $map;
1570
1571	$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	}
1572		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};
1573	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1574	})->prio (1);	2267	})->prio (1);
1575	}	2268	}
1576		2269
1577	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1578		2271
…		…
1580		2273
1581	sub parse_random_map_params {	2274	sub parse_random_map_params {
1582	my ($spec) = @_;	2275	my ($spec) = @_;
1583		2276
1584	my $rmp = { # defaults	2277	my $rmp = { # defaults
1585	xsize => 10,	2278	xsize => (cf::rndm 15, 40),
1586	ysize => 10,	2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
1587	};	2282	};
1588		2283
1589	for (split /\n/, $spec) {	2284	for (split /\n/, $spec) {
1590	my ($k, $v) = split /\s+/, $_, 2;	2285	my ($k, $v) = split /\s+/, $_, 2;
1591		2286
…		…
1595	$rmp	2290	$rmp
1596	}	2291	}
1597		2292
1598	sub prepare_random_map {	2293	sub prepare_random_map {
1599	my ($exit) = @_;	2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
1600		2297
1601	# all this does is basically replace the /! path by	2298	# all this does is basically replace the /! path by
1602	# a new random map path (?random/...) with a seed	2299	# a new random map path (?random/...) with a seed
1603	# that depends on the exit object	2300	# that depends on the exit object
1604		2301
1605	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1606		2303
1607	if ($exit->map) {	2304	if ($exit->map) {
1608	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1609	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1610	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1611	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1612	}	2309	}
1613		2310
1614	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1615		2312
1616	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1617	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
1618		2316
1619	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) {
1620	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;
1621		2321
1622	$exit->slaying ("?random/$md5");	2322	$exit->slaying ("?random/$md5");
1623	$exit->msg (undef);	2323	$exit->msg (undef);
1624	}	2324	}
1625	}	2325	}
…		…
1627	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1628	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1629		2329
1630	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1631		2331
		2332	if ($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
1632	$self->enter_link;	2343	$self->enter_link;
1633		2344
1634	(Coro::async {	2345	(async {
		2346	$self->deactivate_recursive; # just to be sure
1635	unless (eval {	2347	unless (eval {
1636		2348	$self->goto ($slaying, $hp, $sp);
1637	prepare_random_map $exit
1638	if $exit->slaying eq "/!";
1639
1640	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1641	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1642		2349
1643	1;	2350	1;
1644	}) {	2351	}) {
1645	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1646	. "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. "
1647	. "Please report this to the dungeon master",	2354	. "Please report this to the dungeon master!",
1648	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1649		2356
1650	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1651	$self->leave_link;	2358	$self->leave_link;
1652	}	2359	}
1653	})->prio (1);	2360	})->prio (1);
…		…
1666		2373
1667	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1668	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1669		2376
1670	utf8::encode $text;	2377	utf8::encode $text;
1671	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1672	}	2379	}
1673		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 " . $self->{json_coder}->encode ([$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 " . $self->{json_coder}->encode (\%msg));
		2430	}
1674		2431
1675	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1676		2433
1677	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1678	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>,
1679	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>.
1680		2437
1681	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
1682	reliable at some point in the future.	2439	become reliable at some point in the future.
1683		2440
1684	=cut	2441	=cut
1685		2442
1686	sub cf::client::query {	2443	sub cf::client::query {
1687	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1695	utf8::encode $text;	2452	utf8::encode $text;
1696	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1697		2454
1698	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1699	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1700	}	2459	}
1701		2460
1702	cf::client->attach (	2461	cf::client->attach (
		2462	on_connect => sub {
		2463	my ($ns) = @_;
		2464
		2465	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2466	},
1703	on_reply => sub {	2467	on_reply => sub {
1704	my ($ns, $msg) = @_;	2468	my ($ns, $msg) = @_;
1705		2469
1706	# this weird shuffling is so that direct followup queries	2470	# this weird shuffling is so that direct followup queries
1707	# get handled first	2471	# get handled first
1708	my $queue = delete $ns->{query_queue};	2472	my $queue = delete $ns->{query_queue}
		2473	or return; # be conservative, not sure how that can happen, but we saw a crash here
1709		2474
1710	(shift @$queue)->[1]->($msg);	2475	(shift @$queue)->[1]->($msg);
		2476	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1711		2477
1712	push @{ $ns->{query_queue} }, @$queue;	2478	push @{ $ns->{query_queue} }, @$queue;
1713		2479
1714	if (@{ $ns->{query_queue} } == @$queue) {	2480	if (@{ $ns->{query_queue} } == @$queue) {
1715	if (@$queue) {	2481	if (@$queue) {
…		…
1717	} else {	2483	} else {
1718	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2484	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1719	}	2485	}
1720	}	2486	}
1721	},	2487	},
		2488	on_exticmd => sub {
		2489	my ($ns, $buf) = @_;
		2490
		2491	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2492
		2493	if (ref $msg) {
		2494	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2495	if (my %reply = $cb->($ns, $msg)) {
		2496	$reply{msgid} = $msg->{msgid};
		2497	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2498	}
		2499	}
		2500	} else {
		2501	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2502	}
		2503
		2504	cf::override;
		2505	},
1722	);	2506	);
1723		2507
1724	=item $client->coro (\&cb)	2508	=item $client->async (\&cb)
1725		2509
1726	Create a new coroutine, running the specified callback. The coroutine will	2510	Create a new coroutine, running the specified callback. The coroutine will
1727	be automatically cancelled when the client gets destroyed (e.g. on logout,	2511	be automatically cancelled when the client gets destroyed (e.g. on logout,
1728	or loss of connection).	2512	or loss of connection).
1729		2513
1730	=cut	2514	=cut
1731		2515
1732	sub cf::client::coro {	2516	sub cf::client::async {
1733	my ($self, $cb) = @_;	2517	my ($self, $cb) = @_;
1734		2518
1735	my $coro; $coro = async {	2519	my $coro = &Coro::async ($cb);
1736	eval {
1737	$cb->();
1738	};
1739	warn $@ if $@;
1740	};
1741		2520
1742	$coro->on_destroy (sub {	2521	$coro->on_destroy (sub {
1743	delete $self->{_coro}{$coro+0};	2522	delete $self->{_coro}{$coro+0};
1744	});	2523	});
1745		2524
…		…
1778		2557
1779	# here we export the classes and methods available to script code	2558	# here we export the classes and methods available to script code
1780		2559
1781	=pod	2560	=pod
1782		2561
1783	The following fucntions and emthods are available within a safe environment:	2562	The following functions and methods are available within a safe environment:
1784		2563
1785	cf::object contr pay_amount pay_player map	2564	cf::object contr pay_amount pay_player map
1786	cf::object::player player	2565	cf::object::player player
1787	cf::player peaceful	2566	cf::player peaceful
1788	cf::map trigger	2567	cf::map trigger
…		…
1869	=back	2648	=back
1870		2649
1871	=cut	2650	=cut
1872		2651
1873	#############################################################################	2652	#############################################################################
		2653	# the server's init and main functions
1874		2654
1875	=head2 EXTENSION DATABASE SUPPORT	2655	sub load_facedata($) {
		2656	my ($path) = @_;
1876		2657
1877	Crossfire maintains a very simple database for extension use. It can	2658	warn "loading facedata from $path\n";
1878	currently store anything that can be serialised using Storable, which
1879	excludes objects.
1880		2659
1881	The parameter C<$family> should best start with the name of the extension	2660	my $facedata;
1882	using it, it should be unique.	2661	0 < aio_load $path, $facedata
		2662	or die "$path: $!";
1883		2663
1884	=over 4	2664	$facedata = Coro::Storable::thaw $facedata;
1885		2665
1886	=item $hashref = cf::db_get $family	2666	$facedata->{version} == 2
		2667	or cf::cleanup "$path: version mismatch, cannot proceed.";
1887		2668
1888	Return a hashref for use by the extension C<$family>, which can be
1889	modified. After modifications, you have to call C<cf::db_dirty> or
1890	C<cf::db_sync>.
1891
1892	=item $value = cf::db_get $family => $key
1893
1894	Returns a single value from the database
1895
1896	=item cf::db_put $family => $hashref
1897
1898	Stores the given family hashref into the database. Updates are delayed, if
1899	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1900
1901	=item cf::db_put $family => $key => $value
1902
1903	Stores the given C<$value> in the family hash. Updates are delayed, if you
1904	want the data to be synced to disk immediately, use C<cf::db_sync>.
1905
1906	=item cf::db_dirty
1907
1908	Marks the database as dirty, to be updated at a later time.
1909
1910	=item cf::db_sync
1911
1912	Immediately write the database to disk I<if it is dirty>.
1913
1914	=cut
1915
1916	our $DB;
1917
1918	{
1919	my $path = cf::localdir . "/database.pst";
1920
1921	sub db_load() {
1922	$DB = stat $path ? Storable::retrieve $path : { };
1923	}	2669	{
		2670	my $faces = $facedata->{faceinfo};
1924		2671
1925	my $pid;	2672	while (my ($face, $info) = each %$faces) {
1926		2673	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1927	sub db_save() {	2674	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1928	waitpid $pid, 0 if $pid;	2675	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1929	if (0 == ($pid = fork)) {	2676	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1930	$DB->{_meta}{version} = 1;	2677	Coro::cede;
1931	Storable::nstore $DB, "$path~";
1932	rename "$path~", $path;
1933	cf::_exit 0 if defined $pid;
1934	}
1935	}
1936
1937	my $dirty;
1938
1939	sub db_sync() {
1940	db_save if $dirty;
1941	undef $dirty;
1942	}
1943
1944	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1945	db_sync;
1946	});
1947
1948	sub db_dirty() {
1949	$dirty = 1;
1950	$idle->start;
1951	}
1952
1953	sub db_get($;$) {
1954	@_ >= 2
1955	? $DB->{$_[0]}{$_[1]}
1956	: ($DB->{$_[0]} ||= { })
1957	}
1958
1959	sub db_put($$;$) {
1960	if (@_ >= 3) {
1961	$DB->{$_[0]}{$_[1]} = $_[2];
1962	} else {
1963	$DB->{$_[0]} = $_[1];
1964	}
1965	db_dirty;
1966	}
1967
1968	cf::global->attach (
1969	prio => 10000,
1970	on_cleanup => sub {
1971	db_sync;
1972	},	2678	}
1973	);
1974	}
1975		2679
1976	#############################################################################	2680	while (my ($face, $info) = each %$faces) {
1977	# the server's main()	2681	next unless $info->{smooth};
		2682	my $idx = cf::face::find $face
		2683	or next;
		2684	if (my $smooth = cf::face::find $info->{smooth}) {
		2685	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2686	} else {
		2687	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2688	}
		2689	Coro::cede;
		2690	}
		2691	}
		2692
		2693	{
		2694	my $anims = $facedata->{animinfo};
		2695
		2696	while (my ($anim, $info) = each %$anims) {
		2697	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2698	Coro::cede;
		2699	}
		2700
		2701	cf::anim::invalidate_all; # d'oh
		2702	}
		2703
		2704	1
		2705	}
		2706
		2707	sub reload_regions {
		2708	load_resource_file "$MAPDIR/regions"
		2709	or die "unable to load regions file\n";
		2710	}
		2711
		2712	sub reload_facedata {
		2713	load_facedata "$DATADIR/facedata"
		2714	or die "unable to load facedata\n";
		2715	}
		2716
		2717	sub reload_archetypes {
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	#d# NEED to laod twice to resolve forward references
		2721	# this really needs to be done in an extra post-pass
		2722	# (which needs to be synchronous, so solve it differently)
		2723	load_resource_file "$DATADIR/archetypes"
		2724	or die "unable to load archetypes\n";
		2725	}
		2726
		2727	sub reload_treasures {
		2728	load_resource_file "$DATADIR/treasures"
		2729	or die "unable to load treasurelists\n";
		2730	}
		2731
		2732	sub reload_resources {
		2733	warn "reloading resource files...\n";
		2734
		2735	reload_regions;
		2736	reload_facedata;
		2737	#reload_archetypes;#d#
		2738	reload_archetypes;
		2739	reload_treasures;
		2740
		2741	warn "finished reloading resource files\n";
		2742	}
		2743
		2744	sub init {
		2745	reload_resources;
		2746	}
1978		2747
1979	sub cfg_load {	2748	sub cfg_load {
1980	open my $fh, "<:utf8", cf::confdir . "/config"	2749	open my $fh, "<:utf8", "$CONFDIR/config"
1981	or return;	2750	or return;
1982		2751
1983	local $/;	2752	local $/;
1984	*CFG = YAML::Syck::Load <$fh>;	2753	*CFG = YAML::Syck::Load <$fh>;
		2754
		2755	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2756
		2757	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2758	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2759
		2760	if (exists $CFG{mlockall}) {
		2761	eval {
		2762	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2763	and die "WARNING: m(un)lockall failed: $!\n";
		2764	};
		2765	warn $@ if $@;
		2766	}
1985	}	2767	}
1986		2768
1987	sub main {	2769	sub main {
1988	# we must not ever block the main coroutine	2770	# we must not ever block the main coroutine
1989	local $Coro::idle = sub {	2771	local $Coro::idle = sub {
1990	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2772	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1991	(Coro::unblock_sub {	2773	(async {
1992	Event::one_event;	2774	Event::one_event;
1993	})->();	2775	})->prio (Coro::PRIO_MAX);
1994	};	2776	};
1995		2777
1996	cfg_load;	2778	cfg_load;
1997	db_load;	2779	db_init;
1998	load_extensions;	2780	load_extensions;
		2781
		2782	$TICK_WATCHER->start;
1999	Event::loop;	2783	Event::loop;
2000	}	2784	}
2001		2785
2002	#############################################################################	2786	#############################################################################
2003	# initialisation	2787	# initialisation and cleanup
2004		2788
		2789	# install some emergency cleanup handlers
		2790	BEGIN {
		2791	for my $signal (qw(INT HUP TERM)) {
		2792	Event->signal (
		2793	reentrant => 0,
		2794	data => WF_AUTOCANCEL,
		2795	signal => $signal,
		2796	prio => 0,
		2797	cb => sub {
		2798	cf::cleanup "SIG$signal";
		2799	},
		2800	);
		2801	}
		2802	}
		2803
		2804	sub write_runtime {
		2805	my $runtime = "$LOCALDIR/runtime";
		2806
		2807	# first touch the runtime file to show we are still running:
		2808	# the fsync below can take a very very long time.
		2809
		2810	IO::AIO::aio_utime $runtime, undef, undef;
		2811
		2812	my $guard = cf::lock_acquire "write_runtime";
		2813
		2814	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2815	or return;
		2816
		2817	my $value = $cf::RUNTIME + 90 + 10;
		2818	# 10 is the runtime save interval, for a monotonic clock
		2819	# 60 allows for the watchdog to kill the server.
		2820
		2821	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2822	and return;
		2823
		2824	# always fsync - this file is important
		2825	aio_fsync $fh
		2826	and return;
		2827
		2828	# touch it again to show we are up-to-date
		2829	aio_utime $fh, undef, undef;
		2830
		2831	close $fh
		2832	or return;
		2833
		2834	aio_rename "$runtime~", $runtime
		2835	and return;
		2836
		2837	warn "runtime file written.\n";
		2838
		2839	1
		2840	}
		2841
		2842	sub emergency_save() {
		2843	my $freeze_guard = cf::freeze_mainloop;
		2844
		2845	warn "enter emergency perl save\n";
		2846
		2847	cf::sync_job {
		2848	# use a peculiar iteration method to avoid tripping on perl
		2849	# refcount bugs in for. also avoids problems with players
		2850	# and maps saved/destroyed asynchronously.
		2851	warn "begin emergency player save\n";
		2852	for my $login (keys %cf::PLAYER) {
		2853	my $pl = $cf::PLAYER{$login} or next;
		2854	$pl->valid or next;
		2855	$pl->save;
		2856	}
		2857	warn "end emergency player save\n";
		2858
		2859	warn "begin emergency map save\n";
		2860	for my $path (keys %cf::MAP) {
		2861	my $map = $cf::MAP{$path} or next;
		2862	$map->valid or next;
		2863	$map->save;
		2864	}
		2865	warn "end emergency map save\n";
		2866
		2867	warn "begin emergency database checkpoint\n";
		2868	BDB::db_env_txn_checkpoint $DB_ENV;
		2869	warn "end emergency database checkpoint\n";
		2870	};
		2871
		2872	warn "leave emergency perl save\n";
		2873	}
		2874
		2875	sub post_cleanup {
		2876	my ($make_core) = @_;
		2877
		2878	warn Carp::longmess "post_cleanup backtrace"
		2879	if $make_core;
		2880	}
		2881
2005	sub reload() {	2882	sub do_reload_perl() {
2006	# can/must only be called in main	2883	# can/must only be called in main
2007	if ($Coro::current != $Coro::main) {	2884	if ($Coro::current != $Coro::main) {
2008	warn "can only reload from main coroutine\n";	2885	warn "can only reload from main coroutine";
2009	return;	2886	return;
2010	}	2887	}
2011		2888
2012	warn "reloading...";	2889	warn "reloading...";
2013		2890
2014	local $FREEZE = 1;	2891	warn "entering sync_job";
		2892
		2893	cf::sync_job {
		2894	cf::write_runtime; # external watchdog should not bark
2015	cf::emergency_save;	2895	cf::emergency_save;
		2896	cf::write_runtime; # external watchdog should not bark
2016		2897
2017	eval {	2898	warn "syncing database to disk";
		2899	BDB::db_env_txn_checkpoint $DB_ENV;
		2900
2018	# if anything goes wrong in here, we should simply crash as we already saved	2901	# if anything goes wrong in here, we should simply crash as we already saved
2019		2902
2020	# cancel all watchers	2903	warn "cancelling all WF_AUTOCANCEL watchers";
2021	for (Event::all_watchers) {	2904	for (Event::all_watchers) {
2022	$_->cancel if $_->data & WF_AUTOCANCEL;	2905	$_->cancel if $_->data & WF_AUTOCANCEL;
2023	}	2906	}
2024		2907
		2908	warn "flushing outstanding aio requests";
		2909	for (;;) {
		2910	BDB::flush;
		2911	IO::AIO::flush;
		2912	Coro::cede;
		2913	last unless IO::AIO::nreqs || BDB::nreqs;
		2914	warn "iterate...";
		2915	}
		2916
		2917	++$RELOAD;
		2918
2025	# cancel all extension coros	2919	warn "cancelling all extension coros";
2026	$_->cancel for values %EXT_CORO;	2920	$_->cancel for values %EXT_CORO;
2027	%EXT_CORO = ();	2921	%EXT_CORO = ();
2028		2922
2029	# unload all extensions	2923	warn "removing commands";
2030	for (@exts) {	2924	%COMMAND = ();
		2925
		2926	warn "removing ext/exti commands";
		2927	%EXTCMD = ();
		2928	%EXTICMD = ();
		2929
		2930	warn "unloading/nuking all extensions";
		2931	for my $pkg (@EXTS) {
2031	warn "unloading <$_>";	2932	warn "... unloading $pkg";
2032	unload_extension $_;	2933
		2934	if (my $cb = $pkg->can ("unload")) {
		2935	eval {
		2936	$cb->($pkg);
		2937	1
		2938	} or warn "$pkg unloaded, but with errors: $@";
2033	}	2939	}
2034		2940
		2941	warn "... nuking $pkg";
		2942	Symbol::delete_package $pkg;
		2943	}
		2944
2035	# unload all modules loaded from $LIBDIR	2945	warn "unloading all perl modules loaded from $LIBDIR";
2036	while (my ($k, $v) = each %INC) {	2946	while (my ($k, $v) = each %INC) {
2037	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2947	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2038		2948
2039	warn "removing <$k>";	2949	warn "... unloading $k";
2040	delete $INC{$k};	2950	delete $INC{$k};
2041		2951
2042	$k =~ s/\.pm$//;	2952	$k =~ s/\.pm$//;
2043	$k =~ s/\//::/g;	2953	$k =~ s/\//::/g;
2044		2954
…		…
2047	}	2957	}
2048		2958
2049	Symbol::delete_package $k;	2959	Symbol::delete_package $k;
2050	}	2960	}
2051		2961
2052	# sync database to disk
2053	cf::db_sync;
2054	IO::AIO::flush;
2055
2056	# get rid of safe::, as good as possible	2962	warn "getting rid of safe::, as good as possible";
2057	Symbol::delete_package "safe::$_"	2963	Symbol::delete_package "safe::$_"
2058	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2964	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2059		2965
2060	# remove register_script_function callbacks
2061	# TODO
2062
2063	# unload cf.pm "a bit"	2966	warn "unloading cf.pm \"a bit\"";
2064	delete $INC{"cf.pm"};	2967	delete $INC{"cf.pm"};
		2968	delete $INC{"cf/pod.pm"};
2065		2969
2066	# don't, removes xs symbols, too,	2970	# don't, removes xs symbols, too,
2067	# and global variables created in xs	2971	# and global variables created in xs
2068	#Symbol::delete_package __PACKAGE__;	2972	#Symbol::delete_package __PACKAGE__;
2069		2973
2070	# reload cf.pm	2974	warn "unload completed, starting to reload now";
		2975
2071	warn "reloading cf.pm";	2976	warn "reloading cf.pm";
2072	require cf;	2977	require cf;
2073	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2978	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2074		2979
2075	# load config and database again	2980	warn "loading config and database again";
2076	cf::cfg_load;	2981	cf::cfg_load;
2077	cf::db_load;
2078		2982
2079	# load extensions
2080	warn "load extensions";	2983	warn "loading extensions";
2081	cf::load_extensions;	2984	cf::load_extensions;
2082		2985
2083	# reattach attachments to objects	2986	warn "reattaching attachments to objects/players";
2084	warn "reattach";	2987	_global_reattach; # objects, sockets
2085	_global_reattach;	2988	warn "reattaching attachments to maps";
2086	};	2989	reattach $_ for values %MAP;
		2990	warn "reattaching attachments to players";
		2991	reattach $_ for values %PLAYER;
2087		2992
2088	if ($@) {	2993	warn "leaving sync_job";
		2994
		2995	1
		2996	} or do {
2089	warn $@;	2997	warn $@;
2090	warn "error while reloading, exiting.";	2998	warn "error while reloading, exiting.";
2091	exit 1;	2999	exit 1;
2092	}	3000	};
2093		3001
2094	warn "reloaded successfully";	3002	warn "reloaded";
2095	};	3003	};
2096		3004
2097	#############################################################################	3005	our $RELOAD_WATCHER; # used only during reload
2098		3006
2099	unless ($LINK_MAP) {	3007	sub reload_perl() {
2100	$LINK_MAP = cf::map::new;	3008	# doing reload synchronously and two reloads happen back-to-back,
		3009	# coro crashes during coro_state_free->destroy here.
2101		3010
2102	$LINK_MAP->width (41);	3011	$RELOAD_WATCHER ||= Event->timer (
2103	$LINK_MAP->height (41);	3012	reentrant => 0,
2104	$LINK_MAP->alloc;
2105	$LINK_MAP->path ("{link}");
2106	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2107	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2108
2109	# dirty hack because... archetypes are not yet loaded
2110	Event->timer (
2111	after => 2,	3013	after => 0,
		3014	data => WF_AUTOCANCEL,
2112	cb => sub {	3015	cb => sub {
2113	$_[0]->w->cancel;	3016	do_reload_perl;
2114		3017	undef $RELOAD_WATCHER;
2115	# provide some exits "home"
2116	my $exit = cf::object::new "exit";
2117
2118	$exit->slaying ($EMERGENCY_POSITION->[0]);
2119	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2120	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2121
2122	$LINK_MAP->insert ($exit->clone, 19, 19);
2123	$LINK_MAP->insert ($exit->clone, 19, 20);
2124	$LINK_MAP->insert ($exit->clone, 19, 21);
2125	$LINK_MAP->insert ($exit->clone, 20, 19);
2126	$LINK_MAP->insert ($exit->clone, 20, 21);
2127	$LINK_MAP->insert ($exit->clone, 21, 19);
2128	$LINK_MAP->insert ($exit->clone, 21, 20);
2129	$LINK_MAP->insert ($exit->clone, 21, 21);
2130
2131	$exit->destroy;
2132	});	3018	},
2133		3019	);
2134	$LINK_MAP->{deny_save} = 1;
2135	$LINK_MAP->{deny_reset} = 1;
2136
2137	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2138	}	3020	}
2139
2140	register "<global>", __PACKAGE__;
2141		3021
2142	register_command "reload" => sub {	3022	register_command "reload" => sub {
2143	my ($who, $arg) = @_;	3023	my ($who, $arg) = @_;
2144		3024
2145	if ($who->flag (FLAG_WIZ)) {	3025	if ($who->flag (FLAG_WIZ)) {
2146	$who->message ("start of reload.");
2147	reload;
2148	$who->message ("end of reload.");	3026	$who->message ("reloading server.");
		3027	async { reload_perl };
2149	}	3028	}
2150	};	3029	};
2151		3030
2152	unshift @INC, $LIBDIR;	3031	unshift @INC, $LIBDIR;
2153		3032
		3033	my $bug_warning = 0;
		3034
		3035	our @WAIT_FOR_TICK;
		3036	our @WAIT_FOR_TICK_BEGIN;
		3037
		3038	sub wait_for_tick {
		3039	return unless $TICK_WATCHER->is_active;
		3040	return if $Coro::current == $Coro::main;
		3041
		3042	my $signal = new Coro::Signal;
		3043	push @WAIT_FOR_TICK, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	sub wait_for_tick_begin {
		3048	return unless $TICK_WATCHER->is_active;
		3049	return if $Coro::current == $Coro::main;
		3050
		3051	my $signal = new Coro::Signal;
		3052	push @WAIT_FOR_TICK_BEGIN, $signal;
		3053	$signal->wait;
		3054	}
		3055
		3056	my $min = 1e6;#d#
		3057	my $avg = 10;
2154	$TICK_WATCHER = Event->timer (	3058	$TICK_WATCHER = Event->timer (
2155	reentrant => 0,	3059	reentrant => 0,
		3060	parked => 1,
2156	prio => 0,	3061	prio => 0,
2157	at => $NEXT_TICK || $TICK,	3062	at => $NEXT_TICK || $TICK,
2158	data => WF_AUTOCANCEL,	3063	data => WF_AUTOCANCEL,
2159	cb => sub {	3064	cb => sub {
2160	unless ($FREEZE) {	3065	if ($Coro::current != $Coro::main) {
		3066	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3067	unless ++$bug_warning > 10;
		3068	return;
		3069	}
		3070
		3071	$NOW = $tick_start = Event::time;
		3072
2161	cf::server_tick; # one server iteration	3073	cf::server_tick; # one server iteration
2162	$RUNTIME += $TICK;	3074
		3075	0 && sync_job {#d#
		3076	for(1..10) {
		3077	my $t = Event::time;
		3078	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3079	or die;
		3080
		3081	$map->width (50);
		3082	$map->height (50);
		3083	$map->alloc;
		3084	$map->_load_objects ("/tmp/x.map", 1);
		3085	my $t = Event::time - $t;
		3086
		3087	#next unless $t < 0.0013;#d#
		3088	if ($t < $min) {
		3089	$min = $t;
		3090	}
		3091	$avg = $avg * 0.99 + $t * 0.01;
		3092	}
		3093	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3094	exit 0;
		3095	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2163	}	3096	};
2164		3097
		3098	$RUNTIME += $TICK;
2165	$NEXT_TICK += $TICK;	3099	$NEXT_TICK += $TICK;
2166		3100
		3101	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3102	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3103	Coro::async_pool {
		3104	write_runtime
		3105	or warn "ERROR: unable to write runtime file: $!";
		3106	};
		3107	}
		3108
		3109	# my $AFTER = Event::time;
		3110	# warn $AFTER - $NOW;#d#
		3111
		3112	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3113	$sig->send;
		3114	}
		3115	while (my $sig = shift @WAIT_FOR_TICK) {
		3116	$sig->send;
		3117	}
		3118
		3119	$NOW = Event::time;
		3120
2167	# if we are delayed by four ticks or more, skip them all	3121	# if we are delayed by four ticks or more, skip them all
2168	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3122	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2169		3123
2170	$TICK_WATCHER->at ($NEXT_TICK);	3124	$TICK_WATCHER->at ($NEXT_TICK);
2171	$TICK_WATCHER->start;	3125	$TICK_WATCHER->start;
		3126
		3127	$LOAD = ($NOW - $tick_start) / $TICK;
		3128	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3129
		3130	_post_tick;
		3131
		3132
2172	},	3133	},
2173	);	3134	);
2174		3135
		3136	{
2175	IO::AIO::max_poll_time $TICK * 0.2;	3137	BDB::max_poll_time $TICK * 0.1;
2176		3138	$BDB_POLL_WATCHER = Event->io (
2177	Event->io (	3139	reentrant => 0,
2178	fd => IO::AIO::poll_fileno,	3140	fd => BDB::poll_fileno,
2179	poll => 'r',	3141	poll => 'r',
2180	prio => 5,	3142	prio => 0,
2181	data => WF_AUTOCANCEL,
2182	cb => \&IO::AIO::poll_cb,
2183	);
2184
2185	Event->timer (
2186	data => WF_AUTOCANCEL,	3143	data => WF_AUTOCANCEL,
2187	after => 0,	3144	cb => \&BDB::poll_cb,
2188	interval => 10,	3145	);
2189	cb => sub {	3146	BDB::min_parallel 8;
2190	(Coro::unblock_sub {	3147
2191	write_runtime	3148	BDB::set_sync_prepare {
2192	or warn "ERROR: unable to write runtime file: $!";	3149	my $status;
		3150	my $current = $Coro::current;
		3151	(
		3152	sub {
		3153	$status = $!;
		3154	$current->ready; undef $current;
		3155	},
		3156	sub {
		3157	Coro::schedule while defined $current;
		3158	$! = $status;
		3159	},
		3160	)
		3161	};
		3162
		3163	unless ($DB_ENV) {
		3164	$DB_ENV = BDB::db_env_create;
		3165
		3166	cf::sync_job {
		3167	eval {
		3168	BDB::db_env_open
		3169	$DB_ENV,
		3170	$BDBDIR,
		3171	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3172	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3173	0666;
		3174
		3175	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3176
		3177	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3178	$DB_ENV->set_lk_detect;
		3179	};
		3180
		3181	cf::cleanup "db_env_open(db): $@" if $@;
2193	})->();	3182	};
2194	},	3183	}
2195	);	3184	}
		3185
		3186	{
		3187	IO::AIO::min_parallel 8;
		3188
		3189	undef $Coro::AIO::WATCHER;
		3190	IO::AIO::max_poll_time $TICK * 0.1;
		3191	$AIO_POLL_WATCHER = Event->io (
		3192	reentrant => 0,
		3193	data => WF_AUTOCANCEL,
		3194	fd => IO::AIO::poll_fileno,
		3195	poll => 'r',
		3196	prio => 6,
		3197	cb => \&IO::AIO::poll_cb,
		3198	);
		3199	}
		3200
		3201	my $_log_backtrace;
		3202
		3203	sub _log_backtrace {
		3204	my ($msg, @addr) = @_;
		3205
		3206	$msg =~ s/\n//;
		3207
		3208	# limit the # of concurrent backtraces
		3209	if ($_log_backtrace < 2) {
		3210	++$_log_backtrace;
		3211	async {
		3212	my @bt = fork_call {
		3213	@addr = map { sprintf "%x", $_ } @addr;
		3214	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3215	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3216	or die "addr2line: $!";
		3217
		3218	my @funcs;
		3219	my @res = <$fh>;
		3220	chomp for @res;
		3221	while (@res) {
		3222	my ($func, $line) = splice @res, 0, 2, ();
		3223	push @funcs, "[$func] $line";
		3224	}
		3225
		3226	@funcs
		3227	};
		3228
		3229	LOG llevInfo, "[ABT] $msg\n";
		3230	LOG llevInfo, "[ABT] $_\n" for @bt;
		3231	--$_log_backtrace;
		3232	};
		3233	} else {
		3234	LOG llevInfo, "[ABT] $msg\n";
		3235	LOG llevInfo, "[ABT] [suppressed]\n";
		3236	}
		3237	}
		3238
		3239	# load additional modules
		3240	use cf::pod;
2196		3241
2197	END { cf::emergency_save }	3242	END { cf::emergency_save }
2198		3243
2199	1	3244	1
2200		3245

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