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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.287 by root, Mon Jun 25 05:43:45 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 BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXTICMD = ();
		55	our %EXT_CORO = (); # coroutines bound to extensions
		56	our %EXT_MAP = (); # pluggable maps
38		57
		58	our $RELOAD; # number of reloads so far
39	our @EVENT;	59	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		60
42	our $TICK = MAX_TIME * 1e-6;	61	our $CONFDIR = confdir;
		62	our $DATADIR = datadir;
		63	our $LIBDIR = "$DATADIR/ext";
		64	our $PODDIR = "$DATADIR/pod";
		65	our $MAPDIR = "$DATADIR/" . mapdir;
		66	our $LOCALDIR = localdir;
		67	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		68	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		69	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		70	our $RANDOMDIR = "$LOCALDIR/random";
		71	our $BDBDIR = "$LOCALDIR/db";
		72
		73	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	74	our $TICK_WATCHER;
		75	our $AIO_POLL_WATCHER;
		76	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	77	our $NEXT_TICK;
45	our $NOW;	78	our $NOW;
		79	our $USE_FSYNC = 1; # use fsync to write maps - default off
		80
		81	our $BDB_POLL_WATCHER;
		82	our $DB_ENV;
46		83
47	our %CFG;	84	our %CFG;
48		85
49	our $UPTIME; $UPTIME ||= time;	86	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	87	our $RUNTIME;
51		88
		89	our %PLAYER; # all users
52	our %MAP; # all maps	90	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	91	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	92
55	our $RANDOM_MAPS = cf::localdir . "/random";	93	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	94	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		95
		96	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		97	our $LOADAVG; # same thing, but with alpha-smoothing
		98	our $tick_start; # for load detecting purposes
57		99
58	binmode STDOUT;	100	binmode STDOUT;
59	binmode STDERR;	101	binmode STDERR;
60		102
61	# read virtual server time, if available	103	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	104	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	105	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	106	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	107	$RUNTIME = <$fh> + 0.;
66	}	108	}
67		109
68	mkdir cf::localdir;	110	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	111	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		112
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	113	our $EMERGENCY_POSITION;
		114
		115	sub cf::map::normalise;
77		116
78	#############################################################################	117	#############################################################################
79		118
80	=head2 GLOBAL VARIABLES	119	=head2 GLOBAL VARIABLES
81		120
…		…
88	=item $cf::RUNTIME	127	=item $cf::RUNTIME
89		128
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	129	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	130	every server tick.
92		131
93	=item $cf::LIBDIR	132	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		133	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		134	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		135
95	The perl library directory, where extensions and cf-specific modules can	136	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	137	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		138	unique-items directory, player file directory, random maps directory and
		139	database environment.
97		140
98	=item $cf::NOW	141	=item $cf::NOW
99		142
100	The time of the last (current) server tick.	143	The time of the last (current) server tick.
101		144
102	=item $cf::TICK	145	=item $cf::TICK
103		146
104	The interval between server ticks, in seconds.	147	The interval between server ticks, in seconds.
		148
		149	=item $cf::LOADAVG
		150
		151	The current CPU load on the server (alpha-smoothed), as a value between 0
		152	(none) and 1 (overloaded), indicating how much time is spent on processing
		153	objects per tick. Healthy values are < 0.5.
		154
		155	=item $cf::LOAD
		156
		157	The raw value load value from the last tick.
105		158
106	=item %cf::CFG	159	=item %cf::CFG
107		160
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	161	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	162	from wherever your confdir points to.
		163
		164	=item cf::wait_for_tick, cf::wait_for_tick_begin
		165
		166	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		167	returns directly I<after> the tick processing (and consequently, can only wake one process
		168	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
110		169
111	=back	170	=back
112		171
113	=cut	172	=cut
114		173
115	BEGIN {	174	BEGIN {
116	*CORE::GLOBAL::warn = sub {	175	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	176	my $msg = join "", @_;
118	utf8::encode $msg;
119		177
120	$msg .= "\n"	178	$msg .= "\n"
121	unless $msg =~ /\n$/;	179	unless $msg =~ /\n$/;
122		180
		181	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		182
		183	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	184	LOG llevError, $msg;
124	};	185	};
125	}	186	}
126		187
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	188	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	189	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	190	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	191	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	192	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		193	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	194	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		195
134	# we bless all objects into (empty) derived classes to force a method lookup	196	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	197	# within the Safe compartment.
136	for my $pkg (qw(	198	for my $pkg (qw(
137	cf::global cf::attachable	199	cf::global cf::attachable
…		…
146		208
147	$Event::DIED = sub {	209	$Event::DIED = sub {
148	warn "error in event callback: @_";	210	warn "error in event callback: @_";
149	};	211	};
150		212
151	my %ext_pkg;	213	#############################################################################
152	my @exts;
153	my @hook;
154		214
155	=head2 UTILITY FUNCTIONS	215	=head2 UTILITY FUNCTIONS
156		216
157	=over 4	217	=over 4
158		218
159	=cut	219	=item dumpval $ref
160		220
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	221	=cut
		222
		223	sub dumpval {
		224	eval {
		225	local $SIG{__DIE__};
		226	my $d;
		227	if (1) {
		228	$d = new Data::Dumper([$_[0]], ["*var"]);
		229	$d->Terse(1);
		230	$d->Indent(2);
		231	$d->Quotekeys(0);
		232	$d->Useqq(1);
		233	#$d->Bless(...);
		234	$d->Seen($_[1]) if @_ > 1;
		235	$d = $d->Dump();
		236	}
		237	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		238	$d
		239	} || "[unable to dump $_[0]: '$@']";
		240	}
		241
		242	use JSON::XS ();
162		243
163	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
164		245
165	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
166		247
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
175		249
176	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
177		251
178	=cut	252	=cut
179		253
180	sub to_json($) {	254	our $json_coder = JSON::XS->new->convert_blessed->utf8;
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		255
185	=item my $guard = cf::guard { BLOCK }	256	sub to_json ($) { $json_coder->encode ($_[0]) }
186		257	sub from_json ($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		258
207	=item cf::lock_wait $string	259	=item cf::lock_wait $string
208		260
209	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
210		262
211	=item my $lock = cf::lock_acquire $string	263	=item my $lock = cf::lock_acquire $string
212		264
213	Wait until the given lock is available and then acquires it and returns	265	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	266	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	267	for example when the coroutine gets canceled), the lock is automatically
216	returned.	268	returned.
217		269
218	Lock names should begin with a unique identifier (for example, find_map	270	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	271	uses map_find and cf::map::load uses map_load).
		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
220		276
221	=cut	277	=cut
222		278
223	our %LOCK;	279	our %LOCK;
224		280
…		…
238	# wait, to be sure we are not locked	294	# wait, to be sure we are not locked
239	lock_wait $key;	295	lock_wait $key;
240		296
241	$LOCK{$key} = [];	297	$LOCK{$key} = [];
242		298
243	cf::guard {	299	Coro::guard {
244	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
246	}	302	}
247	}	303	}
248		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
		311	sub freeze_mainloop {
		312	return unless $TICK_WATCHER->is_active;
		313
		314	my $guard = Coro::guard {
		315	$TICK_WATCHER->start;
		316	};
		317	$TICK_WATCHER->stop;
		318	$guard
		319	}
		320
249	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
250		322
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	323	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	324	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		325	thing you are allowed to do is call C<prio> on it.
253		326
254	=cut	327	=cut
255		328
256	sub async(&) {	329	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		330
265	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
266		332
267	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
270		337
271	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
274	fast or be very important.	341	fast or be very important.
…		…
277		344
278	sub sync_job(&) {	345	sub sync_job(&) {
279	my ($job) = @_;	346	my ($job) = @_;
280		347
281	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
282	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
284		353
285	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	355	# (but this is cancel-safe)
287	local $FREEZE = 1;	356	my $freeze_guard = freeze_mainloop;
288		357
289	my $busy = 1;	358	my $busy = 1;
290	my @res;	359	my @res;
291		360
292	(Coro::async {	361	(async {
293	@res = eval { $job->() };	362	@res = eval { $job->() };
294	warn $@ if $@;	363	warn $@ if $@;
295	undef $busy;	364	undef $busy;
296	})->prio (Coro::PRIO_MAX);	365	})->prio (Coro::PRIO_MAX);
297		366
298	while ($busy) {	367	while ($busy) {
299	Coro::cede_notself;	368	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	369	}
		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
302		377
303	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
304	} else {	379	} else {
305	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
306		381
307	$job->()	382	$job->()
308	}	383	}
309	}	384	}
310		385
311	=item $coro = cf::coro { BLOCK }	386	=item $coro = cf::async_ext { BLOCK }
312		387
313	Creates and returns a new coro. This coro is automcatially being canceled	388	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	389	extension calling this is being unloaded.
315		390
316	=cut	391	=cut
317		392
318	sub coro(&) {	393	sub async_ext(&) {
319	my $cb = shift;	394	my $cb = shift;
320		395
321	my $coro = &cf::async ($cb);	396	my $coro = &Coro::async ($cb);
322		397
323	$coro->on_destroy (sub {	398	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	399	delete $EXT_CORO{$coro+0};
325	});	400	});
326	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
327		402
328	$coro	403	$coro
329	}	404	}
330		405
331	sub write_runtime {	406	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		407
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
335	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
336		412
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		414
341	aio_fsync $fh	415	sub fork_call(&@) {
342	and return;	416	my ($cb, @args) = @_;
343		417
		418	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		419	# or die "socketpair: $!";
		420	pipe my $fh1, my $fh2
		421	or die "pipe: $!";
		422
		423	if (my $pid = fork) {
344	close $fh	424	close $fh2;
345	or return;
346		425
347	aio_rename "$runtime~", $runtime	426	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
348	and return;	427	$res = Coro::Storable::thaw $res;
349		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	die $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	eval {
		439	close $fh1;
		440
		441	my @res = eval { $cb->(@args) };
		442	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		443	};
		444
		445	warn $@ if $@;
		446	_exit 0;
350	1	447	}
		448	}
		449
		450	=item $value = cf::db_get $family => $key
		451
		452	Returns a single value from the environment database.
		453
		454	=item cf::db_put $family => $key => $value
		455
		456	Stores the given C<$value> in the family. It can currently store binary
		457	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		458
		459	=cut
		460
		461	our $DB;
		462
		463	sub db_init {
		464	unless ($DB) {
		465	$DB = BDB::db_create $DB_ENV;
		466
		467	cf::sync_job {
		468	eval {
		469	$DB->set_flags (BDB::CHKSUM);
		470
		471	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		472	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		473	cf::cleanup "db_open(db): $!" if $!;
		474	};
		475	cf::cleanup "db_open(db): $@" if $@;
		476	};
		477	}
		478	}
		479
		480	sub db_get($$) {
		481	my $key = "$_[0]/$_[1]";
		482
		483	cf::sync_job {
		484	BDB::db_get $DB, undef, $key, my $data;
		485
		486	$! ? ()
		487	: $data
		488	}
		489	}
		490
		491	sub db_put($$$) {
		492	BDB::dbreq_pri 4;
		493	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		494	}
		495
		496	=item cf::cache $id => [$paths...], $processversion => $process
		497
		498	Generic caching function that returns the value of the resource $id,
		499	caching and regenerating as required.
		500
		501	This function can block.
		502
		503	=cut
		504
		505	sub cache {
		506	my ($id, $src, $processversion, $process) = @_;
		507
		508	my $meta =
		509	join "\x00",
		510	$processversion,
		511	map {
		512	aio_stat $_
		513	and Carp::croak "$_: $!";
		514
		515	($_, (stat _)[7,9])
		516	} @$src;
		517
		518	my $dbmeta = db_get cache => "$id/meta";
		519	if ($dbmeta ne $meta) {
		520	# changed, we may need to process
		521
		522	my @data;
		523	my $md5;
		524
		525	for (0 .. $#$src) {
		526	0 <= aio_load $src->[$_], $data[$_]
		527	or Carp::croak "$src->[$_]: $!";
		528	}
		529
		530	# if processing is expensive, check
		531	# checksum first
		532	if (1) {
		533	$md5 =
		534	join "\x00",
		535	$processversion,
		536	map {
		537	Coro::cede;
		538	($src->[$_], Digest::MD5::md5_hex $data[$_])
		539	} 0.. $#$src;
		540
		541
		542	my $dbmd5 = db_get cache => "$id/md5";
		543	if ($dbmd5 eq $md5) {
		544	db_put cache => "$id/meta", $meta;
		545
		546	return db_get cache => "$id/data";
		547	}
		548	}
		549
		550	my $t1 = Time::HiRes::time;
		551	my $data = $process->(\@data);
		552	my $t2 = Time::HiRes::time;
		553
		554	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		555
		556	db_put cache => "$id/data", $data;
		557	db_put cache => "$id/md5" , $md5;
		558	db_put cache => "$id/meta", $meta;
		559
		560	return $data;
		561	}
		562
		563	db_get cache => "$id/data"
		564	}
		565
		566	=item cf::datalog type => key => value, ...
		567
		568	Log a datalog packet of the given type with the given key-value pairs.
		569
		570	=cut
		571
		572	sub datalog($@) {
		573	my ($type, %kv) = @_;
		574	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	575	}
352		576
353	=back	577	=back
354		578
355	=cut	579	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		580
477	#############################################################################	581	#############################################################################
478		582
479	=head2 ATTACHABLE OBJECTS	583	=head2 ATTACHABLE OBJECTS
480		584
…		…
482	attach callbacks/event handlers (a collection of which is called an "attachment")	586	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	587	to it. All such attachable objects support the following methods.
484		588
485	In the following description, CLASS can be any of C<global>, C<object>	589	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	590	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	591	Crossfire TRT).
488		592
489	=over 4	593	=over 4
490		594
491	=item $attachable->attach ($attachment, key => $value...)	595	=item $attachable->attach ($attachment, key => $value...)
492		596
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	710	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	711	our @CB_MAP = ();
608		712
609	my %attachment;	713	my %attachment;
610		714
		715	sub cf::attachable::thawer_merge {
		716	# simply override everything except _meta
		717	local $_[0]{_meta};
		718	%{$_[0]} = %{$_[1]};
		719	}
		720
611	sub _attach_cb($$$$) {	721	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	722	my ($registry, $event, $prio, $cb) = @_;
613		723
614	use sort 'stable';	724	use sort 'stable';
615		725
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	759	$registry = $CB_TYPE[$object_type] ||= [];
650		760
651	} elsif ($type eq "subtype") {	761	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	762	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	763	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	764	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		765
656	} elsif ($type eq "package") {	766	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	767	my $pkg = shift @arg;
658		768
659	while (my ($name, $id) = each %cb_id) {	769	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	798	_attach $registry, $klass, @attach;
689	}	799	}
690		800
691	$obj->{$name} = \%arg;	801	$obj->{$name} = \%arg;
692	} else {	802	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	803	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	804	}
695		805
696	$obj->{_attachment}{$name} = undef;	806	$obj->{_attachment}{$name} = undef;
697	}	807	}
698		808
…		…
700	if (ref $_[0]) {	810	if (ref $_[0]) {
701	_object_attach @_;	811	_object_attach @_;
702	} else {	812	} else {
703	_attach shift->_attach_registry, @_;	813	_attach shift->_attach_registry, @_;
704	}	814	}
		815	_recalc_want;
705	};	816	};
706		817
707	# all those should be optimised	818	# all those should be optimised
708	sub cf::attachable::detach {	819	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	820	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	823	delete $obj->{_attachment}{$name};
713	reattach ($obj);	824	reattach ($obj);
714	} else {	825	} else {
715	Carp::croak "cannot, currently, detach class attachments";	826	Carp::croak "cannot, currently, detach class attachments";
716	}	827	}
		828	_recalc_want;
717	};	829	};
718		830
719	sub cf::attachable::attached {	831	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
721		833
…		…
786	# object support	898	# object support
787		899
788	sub reattach {	900	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	901	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	902	my ($obj) = @_;
		903
		904	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		905
792	my $registry = $obj->registry;	906	my $registry = $obj->registry;
793		907
794	@$registry = ();	908	@$registry = ();
795		909
…		…
842	$filename, length $$rdata, scalar @$objs;	956	$filename, length $$rdata, scalar @$objs;
843		957
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	958	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	959	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	960	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	961	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	962	close $fh;
849		963
850	if (@$objs) {	964	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	965	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	966	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	967	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	968	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	969	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	970	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	971	aio_rename "$filename.pst~", "$filename.pst";
858	}	972	}
859	} else {	973	} else {
860	aio_unlink "$filename.pst";	974	aio_unlink "$filename.pst";
…		…
892	or return;	1006	or return;
893	$av = eval { (Storable::thaw $av)->{objs} };	1007	$av = eval { (Storable::thaw $av)->{objs} };
894	}	1008	}
895		1009
896	warn sprintf "loading %s (%d)\n",	1010	warn sprintf "loading %s (%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1011	$filename, length $data, scalar @{$av || []};
898	return ($data, $av);	1012	return ($data, $av);
899	}	1013	}
		1014
		1015	=head2 COMMAND CALLBACKS
		1016
		1017	=over 4
		1018
		1019	=cut
900		1020
901	#############################################################################	1021	#############################################################################
902	# command handling &c	1022	# command handling &c
903		1023
904	=item cf::register_command $name => \&callback($ob,$args);	1024	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1037	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1038	}
919		1039
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1040	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1041
922	Register a callbackf ro execution when the client sends an extcmd packet.	1042	Register a callback for execution when the client sends an (synchronous)
		1043	extcmd packet. Ext commands will be processed in the order they are
		1044	received by the server, like other user commands. The first argument is
		1045	the logged-in player. Ext commands can only be processed after a player
		1046	has logged in successfully.
923		1047
924	If the callback returns something, it is sent back as if reply was being	1048	If the callback returns something, it is sent back as if reply was being
925	called.	1049	called.
926		1050
		1051	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1052
		1053	Register a callback for execution when the client sends an (asynchronous)
		1054	exticmd packet. Exti commands are processed by the server as soon as they
		1055	are received, i.e. out of order w.r.t. other commands. The first argument
		1056	is a client socket. Exti commands can be received anytime, even before
		1057	log-in.
		1058
		1059	If the callback returns something, it is sent back as if reply was being
		1060	called.
		1061
927	=cut	1062	=cut
928		1063
929	sub register_extcmd {	1064	sub register_extcmd {
930	my ($name, $cb) = @_;	1065	my ($name, $cb) = @_;
931		1066
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1067	$EXTCMD{$name} = $cb;
		1068	}
		1069
		1070	sub register_exticmd {
		1071	my ($name, $cb) = @_;
		1072
		1073	$EXTICMD{$name} = $cb;
936	}	1074	}
937		1075
938	cf::player->attach (	1076	cf::player->attach (
939	on_command => sub {	1077	on_command => sub {
940	my ($pl, $name, $params) = @_;	1078	my ($pl, $name, $params) = @_;
…		…
953		1091
954	my $msg = eval { from_json $buf };	1092	my $msg = eval { from_json $buf };
955		1093
956	if (ref $msg) {	1094	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1095	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1096	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	1097	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	1098	}
961	}	1099	}
962	} else {	1100	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1101	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		1103
966	cf::override;	1104	cf::override;
967	},	1105	},
968	);	1106	);
969		1107
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1108	sub load_extensions {
		1109	cf::sync_job {
		1110	my %todo;
		1111
		1112	for my $path (<$LIBDIR/*.ext>) {
		1113	next unless -r $path;
		1114
		1115	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1116	my $base = $1;
		1117	my $pkg = $1;
		1118	$pkg =~ s/[^[:word:]]/_/g;
		1119	$pkg = "ext::$pkg";
		1120
		1121	open my $fh, "<:utf8", $path
		1122	or die "$path: $!";
		1123
		1124	my $source = do { local $/; <$fh> };
		1125
		1126	my %ext = (
		1127	path => $path,
		1128	base => $base,
		1129	pkg => $pkg,
		1130	);
		1131
		1132	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1133	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1134
		1135	$ext{source} =
		1136	"package $pkg; use strict; use utf8;\n"
		1137	. "#line 1 \"$path\"\n{\n"
		1138	. $source
		1139	. "\n};\n1";
		1140
		1141	$todo{$base} = \%ext;
		1142	}
		1143
		1144	my %done;
		1145	while (%todo) {
		1146	my $progress;
		1147
		1148	while (my ($k, $v) = each %todo) {
		1149	for (split /,\s*/, $v->{meta}{depends}) {
		1150	goto skip
		1151	unless exists $done{$_};
		1152	}
		1153
		1154	warn "... loading '$k' into '$v->{pkg}'\n";
		1155
		1156	unless (eval $v->{source}) {
		1157	my $msg = $@ ? "$v->{path}: $@\n"
		1158	: "$v->{base}: extension inactive.\n";
		1159
		1160	if (exists $v->{meta}{mandatory}) {
		1161	warn $msg;
		1162	warn "mandatory extension failed to load, exiting.\n";
		1163	exit 1;
		1164	}
		1165
		1166	warn $msg;
		1167	}
		1168
		1169	$done{$k} = delete $todo{$k};
		1170	push @EXTS, $v->{pkg};
		1171	$progress = 1;
		1172	}
		1173
		1174	skip:
		1175	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1176	unless $progress;
		1177	}
		1178	};
		1179	}
		1180
		1181	#############################################################################
		1182
		1183	=back
		1184
		1185	=head2 CORE EXTENSIONS
		1186
		1187	Functions and methods that extend core crossfire objects.
		1188
		1189	=cut
		1190
		1191	package cf::player;
		1192
		1193	use Coro::AIO;
		1194
		1195	=head3 cf::player
		1196
		1197	=over 4
		1198
		1199	=item cf::player::find $login
		1200
		1201	Returns the given player object, loading it if necessary (might block).
		1202
		1203	=cut
		1204
		1205	sub playerdir($) {
		1206	"$PLAYERDIR/"
		1207	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1208	}
		1209
		1210	sub path($) {
		1211	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1212
		1213	(playerdir $login) . "/playerdata"
		1214	}
		1215
		1216	sub find_active($) {
		1217	$cf::PLAYER{$_[0]}
		1218	and $cf::PLAYER{$_[0]}->active
		1219	and $cf::PLAYER{$_[0]}
		1220	}
		1221
		1222	sub exists($) {
		1223	my ($login) = @_;
		1224
		1225	$cf::PLAYER{$login}
		1226	or cf::sync_job { !aio_stat path $login }
		1227	}
		1228
		1229	sub find($) {
		1230	return $cf::PLAYER{$_[0]} || do {
		1231	my $login = $_[0];
		1232
		1233	my $guard = cf::lock_acquire "user_find:$login";
		1234
		1235	$cf::PLAYER{$_[0]} || do {
		1236	# rename old playerfiles to new ones
		1237	#TODO: remove when no longer required
		1238	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1239	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1240	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1241	aio_unlink +(playerdir $login) . "/$login.pl";
		1242
		1243	my $pl = load_pl path $login
		1244	or return;
		1245	$cf::PLAYER{$login} = $pl
		1246	}
		1247	}
		1248	}
		1249
		1250	sub save($) {
		1251	my ($pl) = @_;
		1252
		1253	return if $pl->{deny_save};
		1254
		1255	my $path = path $pl;
		1256	my $guard = cf::lock_acquire "user_save:$path";
		1257
		1258	return if $pl->{deny_save};
		1259
		1260	aio_mkdir playerdir $pl, 0770;
		1261	$pl->{last_save} = $cf::RUNTIME;
		1262
		1263	$pl->save_pl ($path);
		1264	Coro::cede;
		1265	}
		1266
		1267	sub new($) {
		1268	my ($login) = @_;
		1269
		1270	my $self = create;
		1271
		1272	$self->ob->name ($login);
		1273	$self->{deny_save} = 1;
		1274
		1275	$cf::PLAYER{$login} = $self;
		1276
		1277	$self
		1278	}
		1279
		1280	=item $pl->quit_character
		1281
		1282	Nukes the player without looking back. If logged in, the connection will
		1283	be destroyed. May block for a long time.
		1284
		1285	=cut
		1286
		1287	sub quit_character {
		1288	my ($pl) = @_;
		1289
		1290	my $name = $pl->ob->name;
		1291
		1292	$pl->{deny_save} = 1;
		1293	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1294
		1295	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1296	$pl->deactivate;
		1297	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1298	$pl->ns->destroy if $pl->ns;
		1299
		1300	my $path = playerdir $pl;
		1301	my $temp = "$path~$cf::RUNTIME~deleting~";
		1302	aio_rename $path, $temp;
		1303	delete $cf::PLAYER{$pl->ob->name};
		1304	$pl->destroy;
		1305
		1306	my $prefix = qr<^~\Q$name\E/>;
		1307
		1308	# nuke player maps
		1309	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1310
		1311	IO::AIO::aio_rmtree $temp;
		1312	}
		1313
		1314	=item $pl->kick
		1315
		1316	Kicks a player out of the game. This destroys the connection.
		1317
		1318	=cut
		1319
		1320	sub kick {
		1321	my ($pl, $kicker) = @_;
		1322
		1323	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1324	$pl->killer ("kicked");
		1325	$pl->ns->destroy;
		1326	}
		1327
		1328	=item cf::player::list_logins
		1329
		1330	Returns am arrayref of all valid playernames in the system, can take a
		1331	while and may block, so not sync_job-capable, ever.
		1332
		1333	=cut
		1334
		1335	sub list_logins {
		1336	my $dirs = aio_readdir $PLAYERDIR
		1337	or return [];
		1338
		1339	my @logins;
		1340
		1341	for my $login (@$dirs) {
		1342	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1343	aio_read $fh, 0, 512, my $buf, 0 or next;
		1344	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1345
		1346	utf8::decode $login;
		1347	push @logins, $login;
		1348	}
		1349
		1350	\@logins
		1351	}
		1352
		1353	=item $player->maps
		1354
		1355	Returns an arrayref of map paths that are private for this
		1356	player. May block.
		1357
		1358	=cut
		1359
		1360	sub maps($) {
		1361	my ($pl) = @_;
		1362
		1363	$pl = ref $pl ? $pl->ob->name : $pl;
		1364
		1365	my $files = aio_readdir playerdir $pl
		1366	or return;
		1367
		1368	my @paths;
		1369
		1370	for (@$files) {
		1371	utf8::decode $_;
		1372	next if /\.(?:pl|pst)$/;
		1373	next unless /^$PATH_SEP/o;
		1374
		1375	push @paths, cf::map::normalise "~$pl/$_";
		1376	}
		1377
		1378	\@paths
		1379	}
		1380
		1381	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1382
		1383	Expand crossfire pod fragments into protocol xml.
		1384
		1385	=cut
		1386
		1387	sub expand_cfpod {
		1388	((my $self), (local $_)) = @_;
		1389
		1390	# escape & and <
		1391	s/&/&amp;/g;
		1392	s/(?<![BIUGH])</&lt;/g;
		1393
		1394	# this is buggy, it needs to properly take care of nested <'s
		1395
		1396	1 while
		1397	# replace B<>, I<>, U<> etc.
		1398	s/B<([^\>]*)>/<b>$1<\/b>/
		1399	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1400	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1401	# replace G<male|female> tags
		1402	|| s{G<([^>|]*)\|([^>]*)>}{
		1403	$self->gender ? $2 : $1
		1404	}ge
		1405	# replace H<hint text>
		1406	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1407
		1408	# create single paragraphs (very hackish)
		1409	s/(?<=\S)\n(?=\w)/ /g;
		1410
		1411	$_
		1412	}
		1413
		1414	=item $player->ext_reply ($msgid, %msg)
		1415
		1416	Sends an ext reply to the player.
		1417
		1418	=cut
		1419
		1420	sub ext_reply($$%) {
		1421	my ($self, $id, %msg) = @_;
		1422
		1423	$msg{msgid} = $id;
		1424	$self->send ("ext " . cf::to_json \%msg);
		1425	}
		1426
		1427	=item $player->ext_event ($type, %msg)
		1428
		1429	Sends an ext event to the client.
		1430
		1431	=cut
		1432
		1433	sub ext_event($$%) {
		1434	my ($self, $type, %msg) = @_;
		1435
		1436	$self->ns->ext_event ($type, %msg);
		1437	}
		1438
		1439	=head3 cf::region
		1440
		1441	=over 4
		1442
		1443	=cut
		1444
		1445	package cf::region;
		1446
		1447	=item cf::region::find_by_path $path
		1448
		1449	Tries to decuce the likely region for a map knowing only its path.
		1450
		1451	=cut
		1452
		1453	sub find_by_path($) {
977	my ($path) = @_;	1454	my ($path) = @_;
978		1455
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1456	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1457
985	warn "loading '$path' into '$pkg'\n";	1458	for my $region (list) {
986		1459	if ($region->match && $path =~ $region->match) {
987	open my $fh, "<:utf8", $path	1460	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1461	if $region->specificity > $specificity;
989		1462	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1463	}
1019		1464
1020	# remove commands	1465	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1466	}
1126		1467
1127	=back	1468	=back
1128
1129		1469
1130	=head3 cf::map	1470	=head3 cf::map
1131		1471
1132	=over 4	1472	=over 4
1133		1473
…		…
1136	package cf::map;	1476	package cf::map;
1137		1477
1138	use Fcntl;	1478	use Fcntl;
1139	use Coro::AIO;	1479	use Coro::AIO;
1140		1480
		1481	use overload
		1482	'""' => \&as_string,
		1483	fallback => 1;
		1484
1141	our $MAX_RESET = 7200;	1485	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1486	our $DEFAULT_RESET = 3000;
1143		1487
1144	sub generate_random_map {	1488	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1489	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1490	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1491	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1492	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1493	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1494	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1495	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1496	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1497	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1498	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1499	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1500	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1501	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1502	(cf::region::find $rmp->{region}), $rmp->{custom}
		1503	)
		1504	}
		1505
		1506	=item cf::map->register ($regex, $prio)
		1507
		1508	Register a handler for the map path matching the given regex at the
		1509	givne priority (higher is better, built-in handlers have priority 0, the
		1510	default).
		1511
		1512	=cut
		1513
		1514	sub register {
		1515	my (undef, $regex, $prio) = @_;
		1516	my $pkg = caller;
		1517
		1518	no strict;
		1519	push @{"$pkg\::ISA"}, __PACKAGE__;
		1520
		1521	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1522	}
		1523
		1524	# also paths starting with '/'
		1525	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1526
		1527	sub thawer_merge {
		1528	my ($self, $merge) = @_;
		1529
		1530	# we have to keep some variables in memory intact
		1531	local $self->{path};
		1532	local $self->{load_path};
		1533
		1534	$self->SUPER::thawer_merge ($merge);
		1535	}
		1536
		1537	sub normalise {
		1538	my ($path, $base) = @_;
		1539
		1540	$path = "$path"; # make sure its a string
		1541
		1542	$path =~ s/\.map$//;
		1543
		1544	# map plan:
		1545	#
		1546	# /! non-realised random map exit (special hack!)
		1547	# {... are special paths that are not being touched
		1548	# ?xxx/... are special absolute paths
		1549	# ?random/... random maps
		1550	# /... normal maps
		1551	# ~user/... per-player map of a specific user
		1552
		1553	$path =~ s/$PATH_SEP/\//go;
		1554
		1555	# treat it as relative path if it starts with
		1556	# something that looks reasonable
		1557	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1558	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1559
		1560	$base =~ s{[^/]+/?$}{};
		1561	$path = "$base/$path";
		1562	}
		1563
		1564	for ($path) {
		1565	redo if s{//}{/};
		1566	redo if s{/\.?/}{/};
		1567	redo if s{/[^/]+/\.\./}{/};
		1568	}
		1569
		1570	$path
		1571	}
		1572
		1573	sub new_from_path {
		1574	my (undef, $path, $base) = @_;
		1575
		1576	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1577
		1578	$path = normalise $path, $base;
		1579
		1580	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1581	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1582	my $self = bless cf::map::new, $pkg;
		1583	$self->{path} = $path; $self->path ($path);
		1584	$self->init; # pass $1 etc.
		1585	return $self;
		1586	}
		1587	}
		1588
		1589	Carp::carp "unable to resolve path '$path' (base '$base').";
		1590	()
		1591	}
		1592
		1593	sub init {
		1594	my ($self) = @_;
		1595
		1596	$self
		1597	}
		1598
		1599	sub as_string {
		1600	my ($self) = @_;
		1601
		1602	"$self->{path}"
		1603	}
		1604
		1605	# the displayed name, this is a one way mapping
		1606	sub visible_name {
		1607	&as_string
		1608	}
		1609
		1610	# the original (read-only) location
		1611	sub load_path {
		1612	my ($self) = @_;
		1613
		1614	"$MAPDIR/$self->{path}.map"
		1615	}
		1616
		1617	# the temporary/swap location
		1618	sub save_path {
		1619	my ($self) = @_;
		1620
		1621	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1622	"$TMPDIR/$path.map"
		1623	}
		1624
		1625	# the unique path, undef == no special unique path
		1626	sub uniq_path {
		1627	my ($self) = @_;
		1628
		1629	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1630	"$UNIQUEDIR/$path"
1161	}	1631	}
1162		1632
1163	# and all this just because we cannot iterate over	1633	# and all this just because we cannot iterate over
1164	# all maps in C++...	1634	# all maps in C++...
1165	sub change_all_map_light {	1635	sub change_all_map_light {
…		…
1167		1637
1168	$_->change_map_light ($change)	1638	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1639	for grep $_->outdoor, values %cf::MAP;
1170	}	1640	}
1171		1641
		1642	sub decay_objects {
		1643	my ($self) = @_;
		1644
		1645	return if $self->{deny_reset};
		1646
		1647	$self->do_decay_objects;
		1648	}
		1649
		1650	sub unlink_save {
		1651	my ($self) = @_;
		1652
		1653	utf8::encode (my $save = $self->save_path);
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1655	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1656	}
		1657
1172	sub try_load_header($) {	1658	sub load_header_from($) {
1173	my ($path) = @_;	1659	my ($self, $path) = @_;
1174		1660
1175	utf8::encode $path;	1661	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1662	#aio_open $path, O_RDONLY, 0
		1663	# or return;
		1664
		1665	$self->_load_header ($path)
1177	or return;	1666	or return;
1178		1667
1179	my $map = cf::map::new	1668	$self->{load_path} = $path;
		1669
		1670	1
		1671	}
		1672
		1673	sub load_header_orig {
		1674	my ($self) = @_;
		1675
		1676	$self->load_header_from ($self->load_path)
		1677	}
		1678
		1679	sub load_header_temp {
		1680	my ($self) = @_;
		1681
		1682	$self->load_header_from ($self->save_path)
		1683	}
		1684
		1685	sub prepare_temp {
		1686	my ($self) = @_;
		1687
		1688	$self->last_access ((delete $self->{last_access})
		1689	|| $cf::RUNTIME); #d#
		1690	# safety
		1691	$self->{instantiate_time} = $cf::RUNTIME
		1692	if $self->{instantiate_time} > $cf::RUNTIME;
		1693	}
		1694
		1695	sub prepare_orig {
		1696	my ($self) = @_;
		1697
		1698	$self->{load_original} = 1;
		1699	$self->{instantiate_time} = $cf::RUNTIME;
		1700	$self->last_access ($cf::RUNTIME);
		1701	$self->instantiate;
		1702	}
		1703
		1704	sub load_header {
		1705	my ($self) = @_;
		1706
		1707	if ($self->load_header_temp) {
		1708	$self->prepare_temp;
		1709	} else {
		1710	$self->load_header_orig
1180	or return;	1711	or return;
		1712	$self->prepare_orig;
		1713	}
1181		1714
1182	$map->load_header ($path)	1715	$self->{deny_reset} = 1
1183	or return;	1716	if $self->no_reset;
1184		1717
1185	$map->{load_path} = $path;	1718	$self->default_region (cf::region::find_by_path $self->{path})
		1719	unless $self->default_region;
1186		1720
1187	$map	1721	1
1188	}	1722	}
1189		1723
1190	sub find_map;	1724	sub find;
1191	sub find_map {	1725	sub find {
1192	my ($path, $origin) = @_;	1726	my ($path, $origin) = @_;
1193		1727
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1728	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1729
1199	cf::lock_wait "map_find:$key";	1730	cf::lock_wait "map_find:$path";
1200		1731
1201	$cf::MAP{$key} || do {	1732	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1733	my $guard = cf::lock_acquire "map_find:$path";
1203		1734	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1735	or return;
1219		1736
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1737	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1738
1233	if ($map->should_reset) {	1739	$map->load_header
		1740	or return;
		1741
		1742	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1743	# doing this can freeze the server in a sync job, obviously
		1744	#$cf::WAIT_FOR_TICK->wait;
1234	$map->reset;	1745	$map->reset;
1235	undef $guard;	1746	undef $guard;
1236	$map = find_map $path	1747	return find $path;
1237	or return;
1238	}	1748	}
1239		1749
1240	$cf::MAP{$key} = $map	1750	$cf::MAP{$path} = $map
1241	}	1751	}
1242	}	1752	}
		1753
		1754	sub pre_load { }
		1755	sub post_load { }
1243		1756
1244	sub load {	1757	sub load {
1245	my ($self) = @_;	1758	my ($self) = @_;
1246		1759
		1760	local $self->{deny_reset} = 1; # loading can take a long time
		1761
1247	my $path = $self->{path};	1762	my $path = $self->{path};
		1763
		1764	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1765	my $guard = cf::lock_acquire "map_load:$path";
1249		1766
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1767	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1768
1252	$self->in_memory (cf::MAP_LOADING);	1769	$self->in_memory (cf::MAP_LOADING);
1253		1770
1254	$self->alloc;	1771	$self->alloc;
		1772
		1773	$self->pre_load;
		1774	Coro::cede;
		1775
1255	$self->load_objects ($self->{load_path}, 1)	1776	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1777	or return;
1257		1778
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1779	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1780	if delete $self->{load_original};
1260		1781
1261	if (my $uniq = $path->uniq_path) {	1782	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1783	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1784	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1785	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1786	$self->_load_objects ($uniq, 0);
1266	}	1787	}
1267	}	1788	}
1268		1789
		1790	Coro::cede;
1269	# now do the right thing for maps	1791	# now do the right thing for maps
1270	$self->link_multipart_objects;	1792	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1793	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	1794	unless $self->difficulty;
		1795	Coro::cede;
		1796
		1797	unless ($self->{deny_activate}) {
		1798	$self->decay_objects;
		1799	$self->fix_auto_apply;
		1800	$self->update_buttons;
		1801	Coro::cede;
		1802	$self->set_darkness_map;
		1803	Coro::cede;
1282	$self->activate;	1804	$self->activate;
1283	}	1805	}
1284		1806
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1807	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1808	}
1287		1809
1288	sub load_map_sync {	1810	$self->post_load;
		1811	}
		1812
		1813	sub customise_for {
		1814	my ($self, $ob) = @_;
		1815
		1816	return find "~" . $ob->name . "/" . $self->{path}
		1817	if $self->per_player;
		1818
		1819	# return find "?party/" . $ob->name . "/" . $self->{path}
		1820	# if $self->per_party;
		1821
		1822	$self
		1823	}
		1824
		1825	# find and load all maps in the 3x3 area around a map
		1826	sub load_diag {
		1827	my ($map) = @_;
		1828
		1829	my @diag; # diagonal neighbours
		1830
		1831	for (0 .. 3) {
		1832	my $neigh = $map->tile_path ($_)
		1833	or next;
		1834	$neigh = find $neigh, $map
		1835	or next;
		1836	$neigh->load;
		1837
		1838	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1839	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1840	}
		1841
		1842	for (@diag) {
		1843	my $neigh = find @$_
		1844	or next;
		1845	$neigh->load;
		1846	}
		1847	}
		1848
		1849	sub find_sync {
1289	my ($path, $origin) = @_;	1850	my ($path, $origin) = @_;
1290		1851
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1852	cf::sync_job { find $path, $origin }
		1853	}
1292		1854
1293	cf::sync_job {	1855	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1856	my ($map) = @_;
1295	or return;	1857
		1858	cf::sync_job { $map->load };
		1859	}
		1860
		1861	our %MAP_PREFETCH;
		1862	our $MAP_PREFETCHER = undef;
		1863
		1864	sub find_async {
		1865	my ($path, $origin) = @_;
		1866
		1867	$path = normalise $path, $origin && $origin->{path};
		1868
		1869	if (my $map = $cf::MAP{$path}) {
		1870	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1871	}
		1872
		1873	undef $MAP_PREFETCH{$path};
		1874	$MAP_PREFETCHER ||= cf::async {
		1875	while (%MAP_PREFETCH) {
		1876	for my $path (keys %MAP_PREFETCH) {
		1877	my $map = find $path
		1878	or next;
1296	$map->load;	1879	$map->load;
1297	$map	1880
		1881	delete $MAP_PREFETCH{$path};
		1882	}
		1883	}
		1884	undef $MAP_PREFETCHER;
1298	}	1885	};
		1886	$MAP_PREFETCHER->prio (6);
		1887
		1888	()
1299	}	1889	}
1300		1890
1301	sub save {	1891	sub save {
1302	my ($self) = @_;	1892	my ($self) = @_;
1303		1893
		1894	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1895
1304	$self->{last_save} = $cf::RUNTIME;	1896	$self->{last_save} = $cf::RUNTIME;
1305		1897
1306	return unless $self->dirty;	1898	return unless $self->dirty;
1307		1899
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1900	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1901	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1902
1311	$self->{load_path} = $save;	1903	$self->{load_path} = $save;
1312		1904
1313	return if $self->{deny_save};	1905	return if $self->{deny_save};
1314		1906
		1907	local $self->{last_access} = $self->last_access;#d#
		1908
		1909	cf::async {
		1910	$_->contr->save for $self->players;
		1911	};
		1912
1315	if ($uniq) {	1913	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1914	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	1915	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	1916	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1917	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	1918	}
1321	}	1919	}
1322		1920
1323	sub swap_out {	1921	sub swap_out {
1324	my ($self) = @_;	1922	my ($self) = @_;
1325		1923
1326	# save first because save cedes	1924	# save first because save cedes
1327	$self->save;	1925	$self->save;
		1926
		1927	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		1928
1329	return if $self->players;	1929	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	1930	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	1931	return if $self->{deny_save};
1332		1932
…		…
1336		1936
1337	sub reset_at {	1937	sub reset_at {
1338	my ($self) = @_;	1938	my ($self) = @_;
1339		1939
1340	# TODO: safety, remove and allow resettable per-player maps	1940	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	1941	return 1e99 if $self->{deny_reset};
1343		1942
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1943	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1944	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		1945
…		…
1351	my ($self) = @_;	1950	my ($self) = @_;
1352		1951
1353	$self->reset_at <= $cf::RUNTIME	1952	$self->reset_at <= $cf::RUNTIME
1354	}	1953	}
1355		1954
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	1955	sub reset {
1378	my ($self) = @_;	1956	my ($self) = @_;
1379		1957
		1958	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1959
1380	return if $self->players;	1960	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		1961
1383	warn "resetting map ", $self->path;#d#	1962	warn "resetting map ", $self->path;
		1963
		1964	$self->in_memory (cf::MAP_SWAPPED);
		1965
		1966	# need to save uniques path
		1967	unless ($self->{deny_save}) {
		1968	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1969
		1970	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1971	if $uniq;
		1972	}
1384		1973
1385	delete $cf::MAP{$self->path};	1974	delete $cf::MAP{$self->path};
		1975
		1976	$self->clear;
1386		1977
1387	$_->clear_links_to ($self) for values %cf::MAP;	1978	$_->clear_links_to ($self) for values %cf::MAP;
1388		1979
1389	$self->unlink_save;	1980	$self->unlink_save;
1390	$self->destroy;	1981	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	1984	my $nuke_counter = "aaaa";
1394		1985
1395	sub nuke {	1986	sub nuke {
1396	my ($self) = @_;	1987	my ($self) = @_;
1397		1988
		1989	delete $cf::MAP{$self->path};
		1990
		1991	$self->unlink_save;
		1992
		1993	bless $self, "cf::map";
		1994	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	1995	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	1996	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	1997	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1998
		1999	$cf::MAP{$self->path} = $self;
		2000
1401	$self->reset; # polite request, might not happen	2001	$self->reset; # polite request, might not happen
1402	}	2002	}
1403		2003
1404	sub customise_for {	2004	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2005
1407	if ($map->per_player) {	2006	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2007	maps. May block.
		2008
		2009	=cut
		2010
		2011	sub tmp_maps() {
1409	}	2012	[
1410		2013	map {
1411	$map	2014	utf8::decode $_;
		2015	/\.map$/
		2016	? normalise $_
		2017	: ()
		2018	} @{ aio_readdir $TMPDIR or [] }
		2019	]
1412	}	2020	}
1413		2021
1414	sub emergency_save {	2022	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2023
1417	warn "enter emergency map save\n";	2024	Returns an arrayref with all map paths of currently instantiated and saved
		2025	random maps. May block.
1418		2026
1419	cf::sync_job {	2027	=cut
1420	warn "begin emergency map save\n";
1421	$_->save for values %cf::MAP;
1422	};
1423		2028
1424	warn "end emergency map save\n";	2029	sub random_maps() {
		2030	[
		2031	map {
		2032	utf8::decode $_;
		2033	/\.map$/
		2034	? normalise "?random/$_"
		2035	: ()
		2036	} @{ aio_readdir $RANDOMDIR or [] }
		2037	]
		2038	}
		2039
		2040	=item cf::map::unique_maps
		2041
		2042	Returns an arrayref of paths of all shared maps that have
		2043	instantiated unique items. May block.
		2044
		2045	=cut
		2046
		2047	sub unique_maps() {
		2048	[
		2049	map {
		2050	utf8::decode $_;
		2051	/\.map$/
		2052	? normalise $_
		2053	: ()
		2054	} @{ aio_readdir $UNIQUEDIR or [] }
		2055	]
1425	}	2056	}
1426		2057
1427	package cf;	2058	package cf;
1428		2059
1429	=back	2060	=back
1430		2061
		2062	=head3 cf::object
		2063
		2064	=cut
		2065
		2066	package cf::object;
		2067
		2068	=over 4
		2069
		2070	=item $ob->inv_recursive
		2071
		2072	Returns the inventory of the object _and_ their inventories, recursively.
		2073
		2074	=cut
		2075
		2076	sub inv_recursive_;
		2077	sub inv_recursive_ {
		2078	map { $_, inv_recursive_ $_->inv } @_
		2079	}
		2080
		2081	sub inv_recursive {
		2082	inv_recursive_ inv $_[0]
		2083	}
		2084
		2085	package cf;
		2086
		2087	=back
1431		2088
1432	=head3 cf::object::player	2089	=head3 cf::object::player
1433		2090
1434	=over 4	2091	=over 4
1435		2092
…		…
1449		2106
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2107	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2108
1452	if ($self->{record_replies}) {	2109	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2110	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2111
1454	} else {	2112	} else {
		2113	my $pl = $self->contr;
		2114
		2115	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2116	my $diag = $pl->{npc_dialog};
		2117	$diag->{pl}->ext_reply (
		2118	$diag->{id},
		2119	msgtype => "reply",
		2120	msg => $diag->{pl}->expand_cfpod ($msg),
		2121	add_topics => []
		2122	);
		2123
		2124	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2125	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2126	$self->message ($msg, $flags);
		2127	}
1457	}	2128	}
1458	}	2129	}
1459		2130
1460	=item $player_object->may ("access")	2131	=item $player_object->may ("access")
1461		2132
…		…
1475		2146
1476	=item $player_object->enter_link	2147	=item $player_object->enter_link
1477		2148
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2149	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2150
1480	The player should be reaosnably safe there for short amounts of time. You	2151	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	2152	I<MUST> call C<leave_link> as soon as possible, though.
1482		2153
		2154	Will never block.
		2155
1483	=item $player_object->leave_link ($map, $x, $y)	2156	=item $player_object->leave_link ($map, $x, $y)
1484		2157
1485	Moves the player out of the specila link map onto the given map. If the	2158	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2159	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2160	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2161	fails, to the emergency map position.
1489		2162
1490	Might block.	2163	Might block.
1491		2164
1492	=cut	2165	=cut
		2166
		2167	sub link_map {
		2168	unless ($LINK_MAP) {
		2169	$LINK_MAP = cf::map::find "{link}"
		2170	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2171	$LINK_MAP->load;
		2172	}
		2173
		2174	$LINK_MAP
		2175	}
1493		2176
1494	sub cf::object::player::enter_link {	2177	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2178	my ($self) = @_;
1496		2179
1497	$self->deactivate_recursive;	2180	$self->deactivate_recursive;
1498		2181
1499	return if $self->map == $LINK_MAP;	2182	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2183
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2184	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2185	if $self->map && $self->map->{path} ne "{link}";
1503		2186
1504	$self->enter_map ($LINK_MAP, 20, 20);	2187	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	2188	}
1506		2189
1507	sub cf::object::player::leave_link {	2190	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2191	my ($self, $map, $x, $y) = @_;
		2192
		2193	return unless $self->contr->active;
1509		2194
1510	my $link_pos = delete $self->{_link_pos};	2195	my $link_pos = delete $self->{_link_pos};
1511		2196
1512	unless ($map) {	2197	unless ($map) {
1513	# restore original map position	2198	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2199	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2200	$map = cf::map::find $map;
1516		2201
1517	unless ($map) {	2202	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2203	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2204	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2205	or die "FATAL: cannot load emergency map\n";
1521	}	2206	}
1522	}	2207	}
1523		2208
1524	($x, $y) = (-1, -1)	2209	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	2212	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2213	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2214	if $x <=0 && $y <= 0;
1530		2215
1531	$map->load;	2216	$map->load;
		2217	$map->load_diag;
1532		2218
		2219	return unless $self->contr->active;
1533	$self->activate_recursive;	2220	$self->activate_recursive;
		2221
		2222	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	2223	$self->enter_map ($map, $x, $y);
1535	}	2224	}
1536		2225
1537	cf::player->attach (
1538	on_logout => sub {
1539	my ($pl) = @_;
1540
1541	# abort map switching before logout
1542	if ($pl->ob->{_link_pos}) {
1543	cf::sync_job {
1544	$pl->ob->leave_link
1545	};
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550
1551	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564
1565	=item $player_object->goto_map ($path, $x, $y)	2226	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1566		2227
1567	=cut	2228	Moves the player to the given map-path and coordinates by first freezing
		2229	her, loading and preparing them map, calling the provided $check callback
		2230	that has to return the map if sucecssful, and then unfreezes the player on
		2231	the new (success) or old (failed) map position.
1568		2232
		2233	=cut
		2234
		2235	our $GOTOGEN;
		2236
1569	sub cf::object::player::goto_map {	2237	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2238	my ($self, $path, $x, $y, $check) = @_;
		2239
		2240	# do generation counting so two concurrent goto's will be executed in-order
		2241	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2242
1572	$self->enter_link;	2243	$self->enter_link;
1573		2244
1574	(cf::async {	2245	(async {
1575	$path = new cf::path $path;	2246	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	2247	my $map = cf::map::find $path;
		2248
		2249	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2250	$map = $map->customise_for ($self);
1579		2251	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2252	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2253	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2254	}
1584		2255
		2256	$map
		2257	};
		2258
		2259	if ($@) {
		2260	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2261	LOG llevError | logBacktrace, Carp::longmess $@;
		2262	}
		2263
		2264	if ($gen == $self->{_goto_generation}) {
		2265	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2266	$self->leave_link ($map, $x, $y);
		2267	}
1586	})->prio (1);	2268	})->prio (1);
1587	}	2269	}
1588		2270
1589	=item $player_object->enter_exit ($exit_object)	2271	=item $player_object->enter_exit ($exit_object)
1590		2272
…		…
1592		2274
1593	sub parse_random_map_params {	2275	sub parse_random_map_params {
1594	my ($spec) = @_;	2276	my ($spec) = @_;
1595		2277
1596	my $rmp = { # defaults	2278	my $rmp = { # defaults
1597	xsize => 10,	2279	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2280	ysize => (cf::rndm 15, 40),
		2281	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2282	#layout => string,
1599	};	2283	};
1600		2284
1601	for (split /\n/, $spec) {	2285	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2286	my ($k, $v) = split /\s+/, $_, 2;
1603		2287
…		…
1607	$rmp	2291	$rmp
1608	}	2292	}
1609		2293
1610	sub prepare_random_map {	2294	sub prepare_random_map {
1611	my ($exit) = @_;	2295	my ($exit) = @_;
		2296
		2297	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2298
1613	# all this does is basically replace the /! path by	2299	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2300	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2301	# that depends on the exit object
1616		2302
1617	my $rmp = parse_random_map_params $exit->msg;	2303	my $rmp = parse_random_map_params $exit->msg;
1618		2304
1619	if ($exit->map) {	2305	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2306	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2307	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2308	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2309	$rmp->{origin_y} = $exit->y;
1624	}	2310	}
1625		2311
1626	$rmp->{random_seed} ||= $exit->random_seed;	2312	$rmp->{random_seed} ||= $exit->random_seed;
1627		2313
1628	my $data = cf::to_json $rmp;	2314	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2315	my $md5 = Digest::MD5::md5_hex $data;
		2316	my $meta = "$RANDOMDIR/$md5.meta";
1630		2317
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2318	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2319	aio_write $fh, 0, (length $data), $data, 0;
		2320	undef $fh;
		2321	aio_rename "$meta~", $meta;
1633		2322
1634	$exit->slaying ("?random/$md5");	2323	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2324	$exit->msg (undef);
1636	}	2325	}
1637	}	2326	}
…		…
1639	sub cf::object::player::enter_exit {	2328	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2329	my ($self, $exit) = @_;
1641		2330
1642	return unless $self->type == cf::PLAYER;	2331	return unless $self->type == cf::PLAYER;
1643		2332
		2333	if ($exit->slaying eq "/!") {
		2334	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2335	# the problem is that $exit might not survive long enough
		2336	# so it needs to be done right now, right here
		2337	cf::sync_job { prepare_random_map $exit };
		2338	}
		2339
		2340	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2341	my $hp = $exit->stats->hp;
		2342	my $sp = $exit->stats->sp;
		2343
1644	$self->enter_link;	2344	$self->enter_link;
1645		2345
1646	(cf::async {	2346	(async {
		2347	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2348	unless (eval {
1648	prepare_random_map $exit	2349	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2350
1654	1;	2351	1;
1655	}) {	2352	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2353	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2354	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2355	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2356	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2357
1661	warn "ERROR in enter_exit: $@";	2358	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2359	$self->leave_link;
1663	}	2360	}
1664	})->prio (1);	2361	})->prio (1);
…		…
1677		2374
1678	sub cf::client::send_drawinfo {	2375	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2376	my ($self, $text, $flags) = @_;
1680		2377
1681	utf8::encode $text;	2378	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2379	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2380	}
1684		2381
		2382	=item $client->send_msg ($color, $type, $msg, [extra...])
		2383
		2384	Send a drawinfo or msg packet to the client, formatting the msg for the
		2385	client if neccessary. C<$type> should be a string identifying the type of
		2386	the message, with C<log> being the default. If C<$color> is negative, suppress
		2387	the message unless the client supports the msg packet.
		2388
		2389	=cut
		2390
		2391	sub cf::client::send_msg {
		2392	my ($self, $color, $type, $msg, @extra) = @_;
		2393
		2394	$msg = $self->pl->expand_cfpod ($msg);
		2395
		2396	if ($self->can_msg) {
		2397	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2398	} else {
		2399	# replace some tags by gcfclient-compatible ones
		2400	for ($msg) {
		2401	1 while
		2402	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2403	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2404	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2405	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2406	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2407	}
		2408
		2409	if ($color >= 0) {
		2410	if (0 && $msg =~ /\[/) {
		2411	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2412	} else {
		2413	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2414	$self->send_packet ("drawinfo $color $msg")
		2415	}
		2416	}
		2417	}
		2418	}
		2419
		2420	=item $client->ext_event ($type, %msg)
		2421
		2422	Sends an ext event to the client.
		2423
		2424	=cut
		2425
		2426	sub cf::client::ext_event($$%) {
		2427	my ($self, $type, %msg) = @_;
		2428
		2429	$msg{msgtype} = "event_$type";
		2430	$self->send_packet ("ext " . cf::to_json \%msg);
		2431	}
1685		2432
1686	=item $success = $client->query ($flags, "text", \&cb)	2433	=item $success = $client->query ($flags, "text", \&cb)
1687		2434
1688	Queues a query to the client, calling the given callback with	2435	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2436	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2437	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2438
1692	Queries can fail, so check the return code. Or don't, as queries will become	2439	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2440	become reliable at some point in the future.
1694		2441
1695	=cut	2442	=cut
1696		2443
1697	sub cf::client::query {	2444	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2445	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2453	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2454	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2455
1709	$self->send_packet ($self->{query_queue}[0][0])	2456	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2457	if @{ $self->{query_queue} } == 1;
		2458
		2459	1
1711	}	2460	}
1712		2461
1713	cf::client->attach (	2462	cf::client->attach (
1714	on_reply => sub {	2463	on_reply => sub {
1715	my ($ns, $msg) = @_;	2464	my ($ns, $msg) = @_;
…		…
1718	# get handled first	2467	# get handled first
1719	my $queue = delete $ns->{query_queue}	2468	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2469	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2470
1722	(shift @$queue)->[1]->($msg);	2471	(shift @$queue)->[1]->($msg);
		2472	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2473
1724	push @{ $ns->{query_queue} }, @$queue;	2474	push @{ $ns->{query_queue} }, @$queue;
1725		2475
1726	if (@{ $ns->{query_queue} } == @$queue) {	2476	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2477	if (@$queue) {
…		…
1729	} else {	2479	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2480	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2481	}
1732	}	2482	}
1733	},	2483	},
		2484	on_exticmd => sub {
		2485	my ($ns, $buf) = @_;
		2486
		2487	my $msg = eval { from_json $buf };
		2488
		2489	if (ref $msg) {
		2490	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2491	if (my %reply = $cb->($ns, $msg)) {
		2492	$reply{msgid} = $msg->{msgid};
		2493	$ns->send ("ext " . cf::to_json \%reply);
		2494	}
		2495	}
		2496	} else {
		2497	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2498	}
		2499
		2500	cf::override;
		2501	},
1734	);	2502	);
1735		2503
1736	=item $client->coro (\&cb)	2504	=item $client->async (\&cb)
1737		2505
1738	Create a new coroutine, running the specified callback. The coroutine will	2506	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2507	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2508	or loss of connection).
1741		2509
1742	=cut	2510	=cut
1743		2511
1744	sub cf::client::coro {	2512	sub cf::client::async {
1745	my ($self, $cb) = @_;	2513	my ($self, $cb) = @_;
1746		2514
1747	my $coro = &cf::async ($cb);	2515	my $coro = &Coro::async ($cb);
1748		2516
1749	$coro->on_destroy (sub {	2517	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2518	delete $self->{_coro}{$coro+0};
1751	});	2519	});
1752		2520
…		…
1785		2553
1786	# here we export the classes and methods available to script code	2554	# here we export the classes and methods available to script code
1787		2555
1788	=pod	2556	=pod
1789		2557
1790	The following fucntions and emthods are available within a safe environment:	2558	The following functions and methods are available within a safe environment:
1791		2559
1792	cf::object contr pay_amount pay_player map	2560	cf::object contr pay_amount pay_player map
1793	cf::object::player player	2561	cf::object::player player
1794	cf::player peaceful	2562	cf::player peaceful
1795	cf::map trigger	2563	cf::map trigger
…		…
1876	=back	2644	=back
1877		2645
1878	=cut	2646	=cut
1879		2647
1880	#############################################################################	2648	#############################################################################
		2649	# the server's init and main functions
1881		2650
1882	=head2 EXTENSION DATABASE SUPPORT	2651	sub load_facedata($) {
		2652	my ($path) = @_;
1883		2653
1884	Crossfire maintains a very simple database for extension use. It can	2654	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2655
1888	The parameter C<$family> should best start with the name of the extension	2656	my $facedata;
1889	using it, it should be unique.	2657	0 < aio_load $path, $facedata
		2658	or die "$path: $!";
1890		2659
1891	=over 4	2660	$facedata = Coro::Storable::thaw $facedata;
1892		2661
1893	=item $hashref = cf::db_get $family	2662	$facedata->{version} == 2
		2663	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2664
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key
1900
1901	Returns a single value from the database
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}	2665	{
		2666	my $faces = $facedata->{faceinfo};
1931		2667
1932	my $pid;	2668	while (my ($face, $info) = each %$faces) {
1933		2669	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1934	sub db_save() {	2670	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1935	waitpid $pid, 0 if $pid;	2671	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1936	if (0 == ($pid = fork)) {	2672	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1937	$DB->{_meta}{version} = 1;	2673	Coro::cede;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2674	}
1980	);
1981	}
1982		2675
1983	#############################################################################	2676	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2677	next unless $info->{smooth};
		2678	my $idx = cf::face::find $face
		2679	or next;
		2680	if (my $smooth = cf::face::find $info->{smooth}) {
		2681	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2682	} else {
		2683	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2684	}
		2685	Coro::cede;
		2686	}
		2687	}
		2688
		2689	{
		2690	my $anims = $facedata->{animinfo};
		2691
		2692	while (my ($anim, $info) = each %$anims) {
		2693	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2694	Coro::cede;
		2695	}
		2696
		2697	cf::anim::invalidate_all; # d'oh
		2698	}
		2699
		2700	1
		2701	}
		2702
		2703	sub reload_regions {
		2704	load_resource_file "$MAPDIR/regions"
		2705	or die "unable to load regions file\n";
		2706	}
		2707
		2708	sub reload_facedata {
		2709	load_facedata "$DATADIR/facedata"
		2710	or die "unable to load facedata\n";
		2711	}
		2712
		2713	sub reload_archetypes {
		2714	load_resource_file "$DATADIR/archetypes"
		2715	or die "unable to load archetypes\n";
		2716	}
		2717
		2718	sub reload_treasures {
		2719	load_resource_file "$DATADIR/treasures"
		2720	or die "unable to load treasurelists\n";
		2721	}
		2722
		2723	sub reload_resources {
		2724	warn "reloading resource files...\n";
		2725
		2726	reload_regions;
		2727	reload_facedata;
		2728	#reload_archetypes;#d#
		2729	reload_archetypes;
		2730	reload_treasures;
		2731
		2732	warn "finished reloading resource files\n";
		2733	}
		2734
		2735	sub init {
		2736	reload_resources;
		2737	}
1985		2738
1986	sub cfg_load {	2739	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2740	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2741	or return;
1989		2742
1990	local $/;	2743	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2744	*CFG = YAML::Syck::Load <$fh>;
1992		2745
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2746	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2747
		2748	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2749	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2750
1995	if (exists $CFG{mlockall}) {	2751	if (exists $CFG{mlockall}) {
1996	eval {	2752	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2753	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2754	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2755	};
2000	warn $@ if $@;	2756	warn $@ if $@;
2001	}	2757	}
2002	}	2758	}
2003		2759
2004	sub main {	2760	sub main {
2005	# we must not ever block the main coroutine	2761	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2762	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2763	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2764	(async {
2009	Event::one_event;	2765	Event::one_event;
2010	})->();	2766	})->prio (Coro::PRIO_MAX);
2011	};	2767	};
2012		2768
2013	cfg_load;	2769	cfg_load;
2014	db_load;	2770	db_init;
2015	load_extensions;	2771	load_extensions;
		2772
		2773	$TICK_WATCHER->start;
2016	Event::loop;	2774	Event::loop;
2017	}	2775	}
2018		2776
2019	#############################################################################	2777	#############################################################################
2020	# initialisation	2778	# initialisation and cleanup
2021		2779
		2780	# install some emergency cleanup handlers
		2781	BEGIN {
		2782	for my $signal (qw(INT HUP TERM)) {
		2783	Event->signal (
		2784	reentrant => 0,
		2785	data => WF_AUTOCANCEL,
		2786	signal => $signal,
		2787	prio => 0,
		2788	cb => sub {
		2789	cf::cleanup "SIG$signal";
		2790	},
		2791	);
		2792	}
		2793	}
		2794
		2795	sub write_runtime {
		2796	my $runtime = "$LOCALDIR/runtime";
		2797
		2798	# first touch the runtime file to show we are still running:
		2799	# the fsync below can take a very very long time.
		2800
		2801	IO::AIO::aio_utime $runtime, undef, undef;
		2802
		2803	my $guard = cf::lock_acquire "write_runtime";
		2804
		2805	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2806	or return;
		2807
		2808	my $value = $cf::RUNTIME + 90 + 10;
		2809	# 10 is the runtime save interval, for a monotonic clock
		2810	# 60 allows for the watchdog to kill the server.
		2811
		2812	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2813	and return;
		2814
		2815	# always fsync - this file is important
		2816	aio_fsync $fh
		2817	and return;
		2818
		2819	# touch it again to show we are up-to-date
		2820	aio_utime $fh, undef, undef;
		2821
		2822	close $fh
		2823	or return;
		2824
		2825	aio_rename "$runtime~", $runtime
		2826	and return;
		2827
		2828	warn "runtime file written.\n";
		2829
		2830	1
		2831	}
		2832
		2833	sub emergency_save() {
		2834	my $freeze_guard = cf::freeze_mainloop;
		2835
		2836	warn "enter emergency perl save\n";
		2837
		2838	cf::sync_job {
		2839	# use a peculiar iteration method to avoid tripping on perl
		2840	# refcount bugs in for. also avoids problems with players
		2841	# and maps saved/destroyed asynchronously.
		2842	warn "begin emergency player save\n";
		2843	for my $login (keys %cf::PLAYER) {
		2844	my $pl = $cf::PLAYER{$login} or next;
		2845	$pl->valid or next;
		2846	$pl->save;
		2847	}
		2848	warn "end emergency player save\n";
		2849
		2850	warn "begin emergency map save\n";
		2851	for my $path (keys %cf::MAP) {
		2852	my $map = $cf::MAP{$path} or next;
		2853	$map->valid or next;
		2854	$map->save;
		2855	}
		2856	warn "end emergency map save\n";
		2857
		2858	warn "begin emergency database checkpoint\n";
		2859	BDB::db_env_txn_checkpoint $DB_ENV;
		2860	warn "end emergency database checkpoint\n";
		2861	};
		2862
		2863	warn "leave emergency perl save\n";
		2864	}
		2865
		2866	sub post_cleanup {
		2867	my ($make_core) = @_;
		2868
		2869	warn Carp::longmess "post_cleanup backtrace"
		2870	if $make_core;
		2871	}
		2872
2022	sub reload() {	2873	sub do_reload_perl() {
2023	# can/must only be called in main	2874	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2875	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2876	warn "can only reload from main coroutine";
2026	return;	2877	return;
2027	}	2878	}
2028		2879
2029	warn "reloading...";	2880	warn "reloading...";
2030		2881
2031	local $FREEZE = 1;	2882	warn "entering sync_job";
		2883
		2884	cf::sync_job {
		2885	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2886	cf::emergency_save;
		2887	cf::write_runtime; # external watchdog should not bark
2033		2888
2034	eval {	2889	warn "syncing database to disk";
		2890	BDB::db_env_txn_checkpoint $DB_ENV;
		2891
2035	# if anything goes wrong in here, we should simply crash as we already saved	2892	# if anything goes wrong in here, we should simply crash as we already saved
2036		2893
2037	# cancel all watchers	2894	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2895	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2896	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2897	}
2041		2898
		2899	warn "flushing outstanding aio requests";
		2900	for (;;) {
		2901	BDB::flush;
		2902	IO::AIO::flush;
		2903	Coro::cede;
		2904	last unless IO::AIO::nreqs || BDB::nreqs;
		2905	warn "iterate...";
		2906	}
		2907
		2908	++$RELOAD;
		2909
2042	# cancel all extension coros	2910	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2911	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2912	%EXT_CORO = ();
2045		2913
2046	# unload all extensions	2914	warn "removing commands";
2047	for (@exts) {	2915	%COMMAND = ();
		2916
		2917	warn "removing ext/exti commands";
		2918	%EXTCMD = ();
		2919	%EXTICMD = ();
		2920
		2921	warn "unloading/nuking all extensions";
		2922	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2923	warn "... unloading $pkg";
2049	unload_extension $_;	2924
		2925	if (my $cb = $pkg->can ("unload")) {
		2926	eval {
		2927	$cb->($pkg);
		2928	1
		2929	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2930	}
2051		2931
		2932	warn "... nuking $pkg";
		2933	Symbol::delete_package $pkg;
		2934	}
		2935
2052	# unload all modules loaded from $LIBDIR	2936	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2937	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2939
2056	warn "removing <$k>";	2940	warn "... unloading $k";
2057	delete $INC{$k};	2941	delete $INC{$k};
2058		2942
2059	$k =~ s/\.pm$//;	2943	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2944	$k =~ s/\//::/g;
2061		2945
…		…
2064	}	2948	}
2065		2949
2066	Symbol::delete_package $k;	2950	Symbol::delete_package $k;
2067	}	2951	}
2068		2952
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2953	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2954	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2955	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2956
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2957	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2958	delete $INC{"cf.pm"};
		2959	delete $INC{"cf/pod.pm"};
2082		2960
2083	# don't, removes xs symbols, too,	2961	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2962	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2963	#Symbol::delete_package __PACKAGE__;
2086		2964
2087	# reload cf.pm	2965	warn "unload completed, starting to reload now";
		2966
2088	warn "reloading cf.pm";	2967	warn "reloading cf.pm";
2089	require cf;	2968	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2969	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2970
2092	# load config and database again	2971	warn "loading config and database again";
2093	cf::cfg_load;	2972	cf::cfg_load;
2094	cf::db_load;
2095		2973
2096	# load extensions
2097	warn "load extensions";	2974	warn "loading extensions";
2098	cf::load_extensions;	2975	cf::load_extensions;
2099		2976
2100	# reattach attachments to objects	2977	warn "reattaching attachments to objects/players";
2101	warn "reattach";	2978	_global_reattach; # objects, sockets
2102	_global_reattach;	2979	warn "reattaching attachments to maps";
2103	};	2980	reattach $_ for values %MAP;
		2981	warn "reattaching attachments to players";
		2982	reattach $_ for values %PLAYER;
2104		2983
2105	if ($@) {	2984	warn "leaving sync_job";
		2985
		2986	1
		2987	} or do {
2106	warn $@;	2988	warn $@;
2107	warn "error while reloading, exiting.";	2989	warn "error while reloading, exiting.";
2108	exit 1;	2990	exit 1;
2109	}	2991	};
2110		2992
2111	warn "reloaded successfully";	2993	warn "reloaded";
2112	};	2994	};
2113		2995
2114	#############################################################################	2996	our $RELOAD_WATCHER; # used only during reload
2115		2997
2116	unless ($LINK_MAP) {	2998	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	2999	# doing reload synchronously and two reloads happen back-to-back,
		3000	# coro crashes during coro_state_free->destroy here.
2118		3001
2119	$LINK_MAP->width (41);	3002	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3003	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	3004	after => 0,
		3005	data => WF_AUTOCANCEL,
2129	cb => sub {	3006	cb => sub {
2130	$_[0]->w->cancel;	3007	do_reload_perl;
2131		3008	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	3009	},
2150		3010	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3011	}
2156
2157	register "<global>", __PACKAGE__;
2158		3012
2159	register_command "reload" => sub {	3013	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3014	my ($who, $arg) = @_;
2161		3015
2162	if ($who->flag (FLAG_WIZ)) {	3016	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3017	$who->message ("reloading server.");
		3018	async { reload_perl };
2166	}	3019	}
2167	};	3020	};
2168		3021
2169	unshift @INC, $LIBDIR;	3022	unshift @INC, $LIBDIR;
2170		3023
		3024	my $bug_warning = 0;
		3025
		3026	our @WAIT_FOR_TICK;
		3027	our @WAIT_FOR_TICK_BEGIN;
		3028
		3029	sub wait_for_tick {
		3030	return unless $TICK_WATCHER->is_active;
		3031	return if $Coro::current == $Coro::main;
		3032
		3033	my $signal = new Coro::Signal;
		3034	push @WAIT_FOR_TICK, $signal;
		3035	$signal->wait;
		3036	}
		3037
		3038	sub wait_for_tick_begin {
		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_BEGIN, $signal;
		3044	$signal->wait;
		3045	}
		3046
		3047	my $min = 1e6;#d#
		3048	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3049	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3050	reentrant => 0,
		3051	parked => 1,
2173	prio => 0,	3052	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3053	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3054	data => WF_AUTOCANCEL,
2176	cb => sub {	3055	cb => sub {
2177	unless ($FREEZE) {	3056	if ($Coro::current != $Coro::main) {
		3057	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3058	unless ++$bug_warning > 10;
		3059	return;
		3060	}
		3061
		3062	$NOW = $tick_start = Event::time;
		3063
2178	cf::server_tick; # one server iteration	3064	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;	3065
		3066	0 && sync_job {#d#
		3067	for(1..10) {
		3068	my $t = Event::time;
		3069	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3070	or die;
		3071
		3072	$map->width (50);
		3073	$map->height (50);
		3074	$map->alloc;
		3075	$map->_load_objects ("/tmp/x.map", 1);
		3076	my $t = Event::time - $t;
		3077
		3078	#next unless $t < 0.0013;#d#
		3079	if ($t < $min) {
		3080	$min = $t;
		3081	}
		3082	$avg = $avg * 0.99 + $t * 0.01;
		3083	}
		3084	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3085	exit 0;
		3086	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2180	}	3087	};
2181		3088
		3089	$RUNTIME += $TICK;
2182	$NEXT_TICK += $TICK;	3090	$NEXT_TICK += $TICK;
2183		3091
		3092	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3093	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3094	Coro::async_pool {
		3095	write_runtime
		3096	or warn "ERROR: unable to write runtime file: $!";
		3097	};
		3098	}
		3099
		3100	# my $AFTER = Event::time;
		3101	# warn $AFTER - $NOW;#d#
		3102
		3103	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3104	$sig->send;
		3105	}
		3106	while (my $sig = shift @WAIT_FOR_TICK) {
		3107	$sig->send;
		3108	}
		3109
		3110	$NOW = Event::time;
		3111
2184	# if we are delayed by four ticks or more, skip them all	3112	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3113	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2186		3114
2187	$TICK_WATCHER->at ($NEXT_TICK);	3115	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;	3116	$TICK_WATCHER->start;
		3117
		3118	$LOAD = ($NOW - $tick_start) / $TICK;
		3119	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3120
		3121	_post_tick;
		3122
		3123
2189	},	3124	},
2190	);	3125	);
2191		3126
		3127	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	3128	BDB::max_poll_time $TICK * 0.1;
2193		3129	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	3130	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	3131	fd => BDB::poll_fileno,
2196	poll => 'r',	3132	poll => 'r',
2197	prio => 5,	3133	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	3134	data => WF_AUTOCANCEL,
2204	after => 0,	3135	cb => \&BDB::poll_cb,
2205	interval => 10,	3136	);
2206	cb => sub {	3137	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	3138
2208	write_runtime	3139	BDB::set_sync_prepare {
2209	or warn "ERROR: unable to write runtime file: $!";	3140	my $status;
		3141	my $current = $Coro::current;
		3142	(
		3143	sub {
		3144	$status = $!;
		3145	$current->ready; undef $current;
		3146	},
		3147	sub {
		3148	Coro::schedule while defined $current;
		3149	$! = $status;
		3150	},
		3151	)
		3152	};
		3153
		3154	unless ($DB_ENV) {
		3155	$DB_ENV = BDB::db_env_create;
		3156
		3157	cf::sync_job {
		3158	eval {
		3159	BDB::db_env_open
		3160	$DB_ENV,
		3161	$BDBDIR,
		3162	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3163	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3164	0666;
		3165
		3166	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3167
		3168	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3169	$DB_ENV->set_lk_detect;
		3170	};
		3171
		3172	cf::cleanup "db_env_open(db): $@" if $@;
2210	})->();	3173	};
2211	},	3174	}
2212	);	3175	}
		3176
		3177	{
		3178	IO::AIO::min_parallel 8;
		3179
		3180	undef $Coro::AIO::WATCHER;
		3181	IO::AIO::max_poll_time $TICK * 0.1;
		3182	$AIO_POLL_WATCHER = Event->io (
		3183	reentrant => 0,
		3184	data => WF_AUTOCANCEL,
		3185	fd => IO::AIO::poll_fileno,
		3186	poll => 'r',
		3187	prio => 6,
		3188	cb => \&IO::AIO::poll_cb,
		3189	);
		3190	}
		3191
		3192	my $_log_backtrace;
		3193
		3194	sub _log_backtrace {
		3195	my ($msg, @addr) = @_;
		3196
		3197	$msg =~ s/\n//;
		3198
		3199	# limit the # of concurrent backtraces
		3200	if ($_log_backtrace < 2) {
		3201	++$_log_backtrace;
		3202	async {
		3203	my @bt = fork_call {
		3204	@addr = map { sprintf "%x", $_ } @addr;
		3205	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3206	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3207	or die "addr2line: $!";
		3208
		3209	my @funcs;
		3210	my @res = <$fh>;
		3211	chomp for @res;
		3212	while (@res) {
		3213	my ($func, $line) = splice @res, 0, 2, ();
		3214	push @funcs, "[$func] $line";
		3215	}
		3216
		3217	@funcs
		3218	};
		3219
		3220	LOG llevInfo, "[ABT] $msg\n";
		3221	LOG llevInfo, "[ABT] $_\n" for @bt;
		3222	--$_log_backtrace;
		3223	};
		3224	} else {
		3225	LOG llevInfo, "[ABT] $msg\n";
		3226	LOG llevInfo, "[ABT] [suppressed]\n";
		3227	}
		3228	}
		3229
		3230	# load additional modules
		3231	use cf::pod;
2213		3232
2214	END { cf::emergency_save }	3233	END { cf::emergency_save }
2215		3234
2216	1	3235	1
2217		3236

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