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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	93
55	our %EXT_CORO;	94	# used to convert map paths into valid unix filenames by replacing / by ∕
		95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
56		100
57	binmode STDOUT;	101	binmode STDOUT;
58	binmode STDERR;	102	binmode STDERR;
59		103
60	# read virtual server time, if available	104	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
65	}	109	}
66		110
67	mkdir cf::localdir;	111	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		113
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
76		117
77	#############################################################################	118	#############################################################################
78		119
79	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
80		121
…		…
87	=item $cf::RUNTIME	128	=item $cf::RUNTIME
88		129
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	131	every server tick.
91		132
92	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		136
94	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
96		141
97	=item $cf::NOW	142	=item $cf::NOW
98		143
99	The time of the last (current) server tick.	144	The time of the last (current) server tick.
100		145
101	=item $cf::TICK	146	=item $cf::TICK
102		147
103	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
104		159
105	=item %cf::CFG	160	=item %cf::CFG
106		161
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		170
110	=back	171	=back
111		172
112	=cut	173	=cut
113		174
114	BEGIN {	175	BEGIN {
115	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	177	my $msg = join "", @_;
117	utf8::encode $msg;
118		178
119	$msg .= "\n"	179	$msg .= "\n"
120	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
121		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
123	};	186	};
124	}	187	}
125		188
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		196
133	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	198	# within the Safe compartment.
135	for my $pkg (qw(	199	for my $pkg (qw(
136	cf::global cf::attachable	200	cf::global cf::attachable
…		…
145		209
146	$Event::DIED = sub {	210	$Event::DIED = sub {
147	warn "error in event callback: @_";	211	warn "error in event callback: @_";
148	};	212	};
149		213
150	my %ext_pkg;	214	#############################################################################
151	my @exts;
152	my @hook;
153		215
154	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
155		217
156	=over 4	218	=over 4
157		219
158	=cut	220	=item dumpval $ref
159		221
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
161		242
162	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
163		244
164	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
165		246
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
174		248
175	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
176		250
177	=cut	251	=cut
178		252
179	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
181	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	256	sub from_json ($) { $json_coder->decode ($_[0]) }
183		257
184	=item cf::lock_wait $string	258	=item cf::lock_wait $string
185		259
186	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
187		261
…		…
193	returned.	267	returned.
194		268
195	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
197		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
198	=cut	276	=cut
199		277
200	our %LOCK;	278	our %LOCK;
201		279
202	sub lock_wait($) {	280	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
223	}	301	}
224	}	302	}
225		303
226	=item cf::async { BLOCK }	304	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	305	my ($key) = @_;
235		306
236	Coro::async {	307	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	308	}
241		309
242	sub freeze_mainloop {	310	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
244		312
245	my $guard = Coro::guard { $TICK_WATCHER->start };	313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
246	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
247	$guard	317	$guard
248	}	318	}
249		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
250	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
251		331
252	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
255		336
256	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
259	fast or be very important.	340	fast or be very important.
…		…
262		343
263	sub sync_job(&) {	344	sub sync_job(&) {
264	my ($job) = @_;	345	my ($job) = @_;
265		346
266	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
267	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
269		352
270	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	354	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	355	my $freeze_guard = freeze_mainloop;
273		356
274	my $busy = 1;	357	my $busy = 1;
275	my @res;	358	my @res;
276		359
277	(Coro::async {	360	(async {
278	@res = eval { $job->() };	361	@res = eval { $job->() };
279	warn $@ if $@;	362	warn $@ if $@;
280	undef $busy;	363	undef $busy;
281	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
282		365
283	while ($busy) {	366	while ($busy) {
284	Coro::cede_notself;	367	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	368	}
		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
287		376
288	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
289	} else {	378	} else {
290	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
291		380
292	$job->()	381	$job->()
293	}	382	}
294	}	383	}
295		384
296	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
297		386
298	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
300		389
301	=cut	390	=cut
302		391
303	sub coro(&) {	392	sub async_ext(&) {
304	my $cb = shift;	393	my $cb = shift;
305		394
306	my $coro = &cf::async ($cb);	395	my $coro = &Coro::async ($cb);
307		396
308	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
310	});	399	});
311	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
312		401
313	$coro	402	$coro
314	}	403	}
315		404
316	sub write_runtime {	405	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		406
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
320	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
321		411
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		413
326	aio_fsync $fh	414	sub fork_call(&@) {
327	and return;	415	my ($cb, @args) = @_;
328		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
329	close $fh	423	close $fh2;
330	or return;
331		424
332	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
333	and return;	426	warn "pst<$res>" unless $res =~ /^pst/;
		427	$res = Coro::Storable::thaw $res;
334		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	Carp::confess $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	local $Coro::idle;
		439	$Coro::current->prio (Coro::PRIO_MAX);
		440	eval {
		441	close $fh1;
		442
		443	my @res = eval { $cb->(@args) };
		444
		445	open my $fh, ">", \my $buf
		446	or die "fork_call: cannot open fh-to-buf in child : $!";
		447	Storable::store_fd +($@ ? \"$@" : \@res), $fh;
		448	close $fh;
		449
		450	warn "writing ", length $buf;
		451	my $x;
		452	(length $buf) == ($x = syswrite $fh2, $buf)
		453	or warn "error writing ".(length $buf)." != $x\n";
		454	close $fh2;
		455	};
		456
		457	warn $@ if $@;
		458	_exit 0;
335	1	459	}
		460	}
		461
		462	=item $value = cf::db_get $family => $key
		463
		464	Returns a single value from the environment database.
		465
		466	=item cf::db_put $family => $key => $value
		467
		468	Stores the given C<$value> in the family. It can currently store binary
		469	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		470
		471	=cut
		472
		473	our $DB;
		474
		475	sub db_init {
		476	unless ($DB) {
		477	$DB = BDB::db_create $DB_ENV;
		478
		479	cf::sync_job {
		480	eval {
		481	$DB->set_flags (BDB::CHKSUM);
		482
		483	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		484	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		485	cf::cleanup "db_open(db): $!" if $!;
		486	};
		487	cf::cleanup "db_open(db): $@" if $@;
		488	};
		489	}
		490	}
		491
		492	sub db_get($$) {
		493	my $key = "$_[0]/$_[1]";
		494
		495	cf::sync_job {
		496	BDB::db_get $DB, undef, $key, my $data;
		497
		498	$! ? ()
		499	: $data
		500	}
		501	}
		502
		503	sub db_put($$$) {
		504	BDB::dbreq_pri 4;
		505	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		506	}
		507
		508	=item cf::cache $id => [$paths...], $processversion => $process
		509
		510	Generic caching function that returns the value of the resource $id,
		511	caching and regenerating as required.
		512
		513	This function can block.
		514
		515	=cut
		516
		517	sub cache {
		518	my ($id, $src, $processversion, $process) = @_;
		519
		520	my $meta =
		521	join "\x00",
		522	$processversion,
		523	map {
		524	aio_stat $_
		525	and Carp::croak "$_: $!";
		526
		527	($_, (stat _)[7,9])
		528	} @$src;
		529
		530	my $dbmeta = db_get cache => "$id/meta";
		531	if ($dbmeta ne $meta) {
		532	# changed, we may need to process
		533
		534	my @data;
		535	my $md5;
		536
		537	for (0 .. $#$src) {
		538	0 <= aio_load $src->[$_], $data[$_]
		539	or Carp::croak "$src->[$_]: $!";
		540	}
		541
		542	# if processing is expensive, check
		543	# checksum first
		544	if (1) {
		545	$md5 =
		546	join "\x00",
		547	$processversion,
		548	map {
		549	Coro::cede;
		550	($src->[$_], Digest::MD5::md5_hex $data[$_])
		551	} 0.. $#$src;
		552
		553
		554	my $dbmd5 = db_get cache => "$id/md5";
		555	if ($dbmd5 eq $md5) {
		556	db_put cache => "$id/meta", $meta;
		557
		558	return db_get cache => "$id/data";
		559	}
		560	}
		561
		562	my $t1 = Time::HiRes::time;
		563	my $data = $process->(\@data);
		564	my $t2 = Time::HiRes::time;
		565
		566	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		567
		568	db_put cache => "$id/data", $data;
		569	db_put cache => "$id/md5" , $md5;
		570	db_put cache => "$id/meta", $meta;
		571
		572	return $data;
		573	}
		574
		575	db_get cache => "$id/data"
		576	}
		577
		578	=item cf::datalog type => key => value, ...
		579
		580	Log a datalog packet of the given type with the given key-value pairs.
		581
		582	=cut
		583
		584	sub datalog($@) {
		585	my ($type, %kv) = @_;
		586	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	587	}
337		588
338	=back	589	=back
339		590
340	=cut	591	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		592
462	#############################################################################	593	#############################################################################
463		594
464	=head2 ATTACHABLE OBJECTS	595	=head2 ATTACHABLE OBJECTS
465		596
…		…
467	attach callbacks/event handlers (a collection of which is called an "attachment")	598	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	599	to it. All such attachable objects support the following methods.
469		600
470	In the following description, CLASS can be any of C<global>, C<object>	601	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	602	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	603	Crossfire TRT).
473		604
474	=over 4	605	=over 4
475		606
476	=item $attachable->attach ($attachment, key => $value...)	607	=item $attachable->attach ($attachment, key => $value...)
477		608
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	722	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	723	our @CB_MAP = ();
593		724
594	my %attachment;	725	my %attachment;
595		726
		727	sub cf::attachable::thawer_merge {
		728	# simply override everything except _meta
		729	local $_[0]{_meta};
		730	%{$_[0]} = %{$_[1]};
		731	}
		732
596	sub _attach_cb($$$$) {	733	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	734	my ($registry, $event, $prio, $cb) = @_;
598		735
599	use sort 'stable';	736	use sort 'stable';
600		737
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	771	$registry = $CB_TYPE[$object_type] ||= [];
635		772
636	} elsif ($type eq "subtype") {	773	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	774	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	775	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	776	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		777
641	} elsif ($type eq "package") {	778	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	779	my $pkg = shift @arg;
643		780
644	while (my ($name, $id) = each %cb_id) {	781	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	810	_attach $registry, $klass, @attach;
674	}	811	}
675		812
676	$obj->{$name} = \%arg;	813	$obj->{$name} = \%arg;
677	} else {	814	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	815	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	816	}
680		817
681	$obj->{_attachment}{$name} = undef;	818	$obj->{_attachment}{$name} = undef;
682	}	819	}
683		820
…		…
685	if (ref $_[0]) {	822	if (ref $_[0]) {
686	_object_attach @_;	823	_object_attach @_;
687	} else {	824	} else {
688	_attach shift->_attach_registry, @_;	825	_attach shift->_attach_registry, @_;
689	}	826	}
		827	_recalc_want;
690	};	828	};
691		829
692	# all those should be optimised	830	# all those should be optimised
693	sub cf::attachable::detach {	831	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	835	delete $obj->{_attachment}{$name};
698	reattach ($obj);	836	reattach ($obj);
699	} else {	837	} else {
700	Carp::croak "cannot, currently, detach class attachments";	838	Carp::croak "cannot, currently, detach class attachments";
701	}	839	}
		840	_recalc_want;
702	};	841	};
703		842
704	sub cf::attachable::attached {	843	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
706		845
…		…
771	# object support	910	# object support
772		911
773	sub reattach {	912	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	913	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	914	my ($obj) = @_;
		915
		916	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		917
777	my $registry = $obj->registry;	918	my $registry = $obj->registry;
778		919
779	@$registry = ();	920	@$registry = ();
780		921
…		…
827	$filename, length $$rdata, scalar @$objs;	968	$filename, length $$rdata, scalar @$objs;
828		969
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	970	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	971	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	972	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	973	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	974	close $fh;
834		975
835	if (@$objs) {	976	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	977	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	978	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	979	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	980	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	981	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	982	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	983	aio_rename "$filename.pst~", "$filename.pst";
843	}	984	}
844	} else {	985	} else {
845	aio_unlink "$filename.pst";	986	aio_unlink "$filename.pst";
…		…
877	or return;	1018	or return;
878	$av = eval { (Storable::thaw $av)->{objs} };	1019	$av = eval { (Storable::thaw $av)->{objs} };
879	}	1020	}
880		1021
881	warn sprintf "loading %s (%d)\n",	1022	warn sprintf "loading %s (%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1023	$filename, length $data, scalar @{$av || []};
883	return ($data, $av);	1024	return ($data, $av);
884	}	1025	}
		1026
		1027	=head2 COMMAND CALLBACKS
		1028
		1029	=over 4
		1030
		1031	=cut
885		1032
886	#############################################################################	1033	#############################################################################
887	# command handling &c	1034	# command handling &c
888		1035
889	=item cf::register_command $name => \&callback($ob,$args);	1036	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1049	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1050	}
904		1051
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1052	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1053
907	Register a callbackf ro execution when the client sends an extcmd packet.	1054	Register a callback for execution when the client sends an (synchronous)
		1055	extcmd packet. Ext commands will be processed in the order they are
		1056	received by the server, like other user commands. The first argument is
		1057	the logged-in player. Ext commands can only be processed after a player
		1058	has logged in successfully.
908		1059
909	If the callback returns something, it is sent back as if reply was being	1060	If the callback returns something, it is sent back as if reply was being
910	called.	1061	called.
911		1062
		1063	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1064
		1065	Register a callback for execution when the client sends an (asynchronous)
		1066	exticmd packet. Exti commands are processed by the server as soon as they
		1067	are received, i.e. out of order w.r.t. other commands. The first argument
		1068	is a client socket. Exti commands can be received anytime, even before
		1069	log-in.
		1070
		1071	If the callback returns something, it is sent back as if reply was being
		1072	called.
		1073
912	=cut	1074	=cut
913		1075
914	sub register_extcmd {	1076	sub register_extcmd {
915	my ($name, $cb) = @_;	1077	my ($name, $cb) = @_;
916		1078
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1079	$EXTCMD{$name} = $cb;
		1080	}
		1081
		1082	sub register_exticmd {
		1083	my ($name, $cb) = @_;
		1084
		1085	$EXTICMD{$name} = $cb;
921	}	1086	}
922		1087
923	cf::player->attach (	1088	cf::player->attach (
924	on_command => sub {	1089	on_command => sub {
925	my ($pl, $name, $params) = @_;	1090	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1099	cf::override;
935	},	1100	},
936	on_extcmd => sub {	1101	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1102	my ($pl, $buf) = @_;
938		1103
939	my $msg = eval { from_json $buf };	1104	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1105
941	if (ref $msg) {	1106	if (ref $msg) {
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1107	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1108	if (my %reply = $cb->($pl, $msg)) {
944	$pl->ext_reply ($msg->{msgid}, %reply);	1109	$pl->ext_reply ($msg->{msgid}, %reply);
945	}	1110	}
946	}	1111	}
947	} else {	1112	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1113	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
950		1115
951	cf::override;	1116	cf::override;
952	},	1117	},
953	);	1118	);
954		1119
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1120	sub load_extensions {
		1121	cf::sync_job {
		1122	my %todo;
		1123
		1124	for my $path (<$LIBDIR/*.ext>) {
		1125	next unless -r $path;
		1126
		1127	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1128	my $base = $1;
		1129	my $pkg = $1;
		1130	$pkg =~ s/[^[:word:]]/_/g;
		1131	$pkg = "ext::$pkg";
		1132
		1133	open my $fh, "<:utf8", $path
		1134	or die "$path: $!";
		1135
		1136	my $source = do { local $/; <$fh> };
		1137
		1138	my %ext = (
		1139	path => $path,
		1140	base => $base,
		1141	pkg => $pkg,
		1142	);
		1143
		1144	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1145	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1146
		1147	$ext{source} =
		1148	"package $pkg; use strict; use utf8;\n"
		1149	. "#line 1 \"$path\"\n{\n"
		1150	. $source
		1151	. "\n};\n1";
		1152
		1153	$todo{$base} = \%ext;
		1154	}
		1155
		1156	my %done;
		1157	while (%todo) {
		1158	my $progress;
		1159
		1160	while (my ($k, $v) = each %todo) {
		1161	for (split /,\s*/, $v->{meta}{depends}) {
		1162	goto skip
		1163	unless exists $done{$_};
		1164	}
		1165
		1166	warn "... loading '$k' into '$v->{pkg}'\n";
		1167
		1168	unless (eval $v->{source}) {
		1169	my $msg = $@ ? "$v->{path}: $@\n"
		1170	: "$v->{base}: extension inactive.\n";
		1171
		1172	if (exists $v->{meta}{mandatory}) {
		1173	warn $msg;
		1174	warn "mandatory extension failed to load, exiting.\n";
		1175	exit 1;
		1176	}
		1177
		1178	warn $msg;
		1179	}
		1180
		1181	$done{$k} = delete $todo{$k};
		1182	push @EXTS, $v->{pkg};
		1183	$progress = 1;
		1184	}
		1185
		1186	skip:
		1187	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1188	unless $progress;
		1189	}
		1190	};
		1191	}
		1192
		1193	#############################################################################
		1194
		1195	=back
		1196
		1197	=head2 CORE EXTENSIONS
		1198
		1199	Functions and methods that extend core crossfire objects.
		1200
		1201	=cut
		1202
		1203	package cf::player;
		1204
		1205	use Coro::AIO;
		1206
		1207	=head3 cf::player
		1208
		1209	=over 4
		1210
		1211	=item cf::player::find $login
		1212
		1213	Returns the given player object, loading it if necessary (might block).
		1214
		1215	=cut
		1216
		1217	sub playerdir($) {
		1218	"$PLAYERDIR/"
		1219	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1220	}
		1221
		1222	sub path($) {
		1223	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1224
		1225	(playerdir $login) . "/playerdata"
		1226	}
		1227
		1228	sub find_active($) {
		1229	$cf::PLAYER{$_[0]}
		1230	and $cf::PLAYER{$_[0]}->active
		1231	and $cf::PLAYER{$_[0]}
		1232	}
		1233
		1234	sub exists($) {
		1235	my ($login) = @_;
		1236
		1237	$cf::PLAYER{$login}
		1238	or cf::sync_job { !aio_stat path $login }
		1239	}
		1240
		1241	sub find($) {
		1242	return $cf::PLAYER{$_[0]} || do {
		1243	my $login = $_[0];
		1244
		1245	my $guard = cf::lock_acquire "user_find:$login";
		1246
		1247	$cf::PLAYER{$_[0]} || do {
		1248	# rename old playerfiles to new ones
		1249	#TODO: remove when no longer required
		1250	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1251	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1252	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1253	aio_unlink +(playerdir $login) . "/$login.pl";
		1254
		1255	my $pl = load_pl path $login
		1256	or return;
		1257	$cf::PLAYER{$login} = $pl
		1258	}
		1259	}
		1260	}
		1261
		1262	sub save($) {
		1263	my ($pl) = @_;
		1264
		1265	return if $pl->{deny_save};
		1266
		1267	my $path = path $pl;
		1268	my $guard = cf::lock_acquire "user_save:$path";
		1269
		1270	return if $pl->{deny_save};
		1271
		1272	aio_mkdir playerdir $pl, 0770;
		1273	$pl->{last_save} = $cf::RUNTIME;
		1274
		1275	$pl->save_pl ($path);
		1276	Coro::cede;
		1277	}
		1278
		1279	sub new($) {
		1280	my ($login) = @_;
		1281
		1282	my $self = create;
		1283
		1284	$self->ob->name ($login);
		1285	$self->{deny_save} = 1;
		1286
		1287	$cf::PLAYER{$login} = $self;
		1288
		1289	$self
		1290	}
		1291
		1292	=item $pl->quit_character
		1293
		1294	Nukes the player without looking back. If logged in, the connection will
		1295	be destroyed. May block for a long time.
		1296
		1297	=cut
		1298
		1299	sub quit_character {
		1300	my ($pl) = @_;
		1301
		1302	my $name = $pl->ob->name;
		1303
		1304	$pl->{deny_save} = 1;
		1305	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1306
		1307	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1308	$pl->deactivate;
		1309	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1310	$pl->ns->destroy if $pl->ns;
		1311
		1312	my $path = playerdir $pl;
		1313	my $temp = "$path~$cf::RUNTIME~deleting~";
		1314	aio_rename $path, $temp;
		1315	delete $cf::PLAYER{$pl->ob->name};
		1316	$pl->destroy;
		1317
		1318	my $prefix = qr<^~\Q$name\E/>;
		1319
		1320	# nuke player maps
		1321	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1322
		1323	IO::AIO::aio_rmtree $temp;
		1324	}
		1325
		1326	=item $pl->kick
		1327
		1328	Kicks a player out of the game. This destroys the connection.
		1329
		1330	=cut
		1331
		1332	sub kick {
		1333	my ($pl, $kicker) = @_;
		1334
		1335	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1336	$pl->killer ("kicked");
		1337	$pl->ns->destroy;
		1338	}
		1339
		1340	=item cf::player::list_logins
		1341
		1342	Returns am arrayref of all valid playernames in the system, can take a
		1343	while and may block, so not sync_job-capable, ever.
		1344
		1345	=cut
		1346
		1347	sub list_logins {
		1348	my $dirs = aio_readdir $PLAYERDIR
		1349	or return [];
		1350
		1351	my @logins;
		1352
		1353	for my $login (@$dirs) {
		1354	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1355	aio_read $fh, 0, 512, my $buf, 0 or next;
		1356	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1357
		1358	utf8::decode $login;
		1359	push @logins, $login;
		1360	}
		1361
		1362	\@logins
		1363	}
		1364
		1365	=item $player->maps
		1366
		1367	Returns an arrayref of map paths that are private for this
		1368	player. May block.
		1369
		1370	=cut
		1371
		1372	sub maps($) {
		1373	my ($pl) = @_;
		1374
		1375	$pl = ref $pl ? $pl->ob->name : $pl;
		1376
		1377	my $files = aio_readdir playerdir $pl
		1378	or return;
		1379
		1380	my @paths;
		1381
		1382	for (@$files) {
		1383	utf8::decode $_;
		1384	next if /\.(?:pl|pst)$/;
		1385	next unless /^$PATH_SEP/o;
		1386
		1387	push @paths, cf::map::normalise "~$pl/$_";
		1388	}
		1389
		1390	\@paths
		1391	}
		1392
		1393	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1394
		1395	Expand crossfire pod fragments into protocol xml.
		1396
		1397	=cut
		1398
		1399	sub expand_cfpod {
		1400	((my $self), (local $_)) = @_;
		1401
		1402	# escape & and <
		1403	s/&/&amp;/g;
		1404	s/(?<![BIUGH])</&lt;/g;
		1405
		1406	# this is buggy, it needs to properly take care of nested <'s
		1407
		1408	1 while
		1409	# replace B<>, I<>, U<> etc.
		1410	s/B<([^\>]*)>/<b>$1<\/b>/
		1411	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1412	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1413	# replace G<male|female> tags
		1414	|| s{G<([^>|]*)\|([^>]*)>}{
		1415	$self->gender ? $2 : $1
		1416	}ge
		1417	# replace H<hint text>
		1418	|| s{H<([^\>]*)>}
		1419	{
		1420	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1421	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1422	"")
		1423	[$self->{hintmode}]
		1424	}ge;
		1425
		1426	# create single paragraphs (very hackish)
		1427	s/(?<=\S)\n(?=\w)/ /g;
		1428
		1429	# compress some whitespace
		1430	s/\s+\n/\n/g; # ws line-ends
		1431	s/\n\n+/\n/g; # double lines
		1432	s/^\n+//; # beginning lines
		1433	s/\n+$//; # ending lines
		1434
		1435	$_
		1436	}
		1437
		1438	sub hintmode {
		1439	$_[0]{hintmode} = $_[1] if @_ > 1;
		1440	$_[0]{hintmode}
		1441	}
		1442
		1443	=item $player->ext_reply ($msgid, %msg)
		1444
		1445	Sends an ext reply to the player.
		1446
		1447	=cut
		1448
		1449	sub ext_reply($$%) {
		1450	my ($self, $id, %msg) = @_;
		1451
		1452	$msg{msgid} = $id;
		1453	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1454	}
		1455
		1456	=item $player->ext_event ($type, %msg)
		1457
		1458	Sends an ext event to the client.
		1459
		1460	=cut
		1461
		1462	sub ext_event($$%) {
		1463	my ($self, $type, %msg) = @_;
		1464
		1465	$self->ns->ext_event ($type, %msg);
		1466	}
		1467
		1468	=head3 cf::region
		1469
		1470	=over 4
		1471
		1472	=cut
		1473
		1474	package cf::region;
		1475
		1476	=item cf::region::find_by_path $path
		1477
		1478	Tries to decuce the likely region for a map knowing only its path.
		1479
		1480	=cut
		1481
		1482	sub find_by_path($) {
962	my ($path) = @_;	1483	my ($path) = @_;
963		1484
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1485	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1486
970	warn "loading '$path' into '$pkg'\n";	1487	for my $region (list) {
971		1488	if ($region->match && $path =~ $region->match) {
972	open my $fh, "<:utf8", $path	1489	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1490	if $region->specificity > $specificity;
974		1491	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1492	}
1004		1493
1005	# remove commands	1494	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1495	}
1111		1496
1112	=back	1497	=back
1113
1114		1498
1115	=head3 cf::map	1499	=head3 cf::map
1116		1500
1117	=over 4	1501	=over 4
1118		1502
…		…
1121	package cf::map;	1505	package cf::map;
1122		1506
1123	use Fcntl;	1507	use Fcntl;
1124	use Coro::AIO;	1508	use Coro::AIO;
1125		1509
		1510	use overload
		1511	'""' => \&as_string,
		1512	fallback => 1;
		1513
1126	our $MAX_RESET = 3600;	1514	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1515	our $DEFAULT_RESET = 3000;
1128		1516
1129	sub generate_random_map {	1517	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1518	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1519	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1520	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1521	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1522	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1523	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1524	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1525	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1526	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1527	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1528	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1529	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1530	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1531	(cf::region::find $rmp->{region}), $rmp->{custom}
		1532	)
		1533	}
		1534
		1535	=item cf::map->register ($regex, $prio)
		1536
		1537	Register a handler for the map path matching the given regex at the
		1538	givne priority (higher is better, built-in handlers have priority 0, the
		1539	default).
		1540
		1541	=cut
		1542
		1543	sub register {
		1544	my (undef, $regex, $prio) = @_;
		1545	my $pkg = caller;
		1546
		1547	no strict;
		1548	push @{"$pkg\::ISA"}, __PACKAGE__;
		1549
		1550	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1551	}
		1552
		1553	# also paths starting with '/'
		1554	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1555
		1556	sub thawer_merge {
		1557	my ($self, $merge) = @_;
		1558
		1559	# we have to keep some variables in memory intact
		1560	local $self->{path};
		1561	local $self->{load_path};
		1562
		1563	$self->SUPER::thawer_merge ($merge);
		1564	}
		1565
		1566	sub normalise {
		1567	my ($path, $base) = @_;
		1568
		1569	$path = "$path"; # make sure its a string
		1570
		1571	$path =~ s/\.map$//;
		1572
		1573	# map plan:
		1574	#
		1575	# /! non-realised random map exit (special hack!)
		1576	# {... are special paths that are not being touched
		1577	# ?xxx/... are special absolute paths
		1578	# ?random/... random maps
		1579	# /... normal maps
		1580	# ~user/... per-player map of a specific user
		1581
		1582	$path =~ s/$PATH_SEP/\//go;
		1583
		1584	# treat it as relative path if it starts with
		1585	# something that looks reasonable
		1586	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1587	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1588
		1589	$base =~ s{[^/]+/?$}{};
		1590	$path = "$base/$path";
		1591	}
		1592
		1593	for ($path) {
		1594	redo if s{//}{/};
		1595	redo if s{/\.?/}{/};
		1596	redo if s{/[^/]+/\.\./}{/};
		1597	}
		1598
		1599	$path
		1600	}
		1601
		1602	sub new_from_path {
		1603	my (undef, $path, $base) = @_;
		1604
		1605	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1606
		1607	$path = normalise $path, $base;
		1608
		1609	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1610	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1611	my $self = bless cf::map::new, $pkg;
		1612	$self->{path} = $path; $self->path ($path);
		1613	$self->init; # pass $1 etc.
		1614	return $self;
		1615	}
		1616	}
		1617
		1618	Carp::carp "unable to resolve path '$path' (base '$base').";
		1619	()
		1620	}
		1621
		1622	sub init {
		1623	my ($self) = @_;
		1624
		1625	$self
		1626	}
		1627
		1628	sub as_string {
		1629	my ($self) = @_;
		1630
		1631	"$self->{path}"
		1632	}
		1633
		1634	# the displayed name, this is a one way mapping
		1635	sub visible_name {
		1636	&as_string
		1637	}
		1638
		1639	# the original (read-only) location
		1640	sub load_path {
		1641	my ($self) = @_;
		1642
		1643	"$MAPDIR/$self->{path}.map"
		1644	}
		1645
		1646	# the temporary/swap location
		1647	sub save_path {
		1648	my ($self) = @_;
		1649
		1650	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1651	"$TMPDIR/$path.map"
		1652	}
		1653
		1654	# the unique path, undef == no special unique path
		1655	sub uniq_path {
		1656	my ($self) = @_;
		1657
		1658	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1659	"$UNIQUEDIR/$path"
1146	}	1660	}
1147		1661
1148	# and all this just because we cannot iterate over	1662	# and all this just because we cannot iterate over
1149	# all maps in C++...	1663	# all maps in C++...
1150	sub change_all_map_light {	1664	sub change_all_map_light {
…		…
1152		1666
1153	$_->change_map_light ($change)	1667	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1668	for grep $_->outdoor, values %cf::MAP;
1155	}	1669	}
1156		1670
		1671	sub decay_objects {
		1672	my ($self) = @_;
		1673
		1674	return if $self->{deny_reset};
		1675
		1676	$self->do_decay_objects;
		1677	}
		1678
		1679	sub unlink_save {
		1680	my ($self) = @_;
		1681
		1682	utf8::encode (my $save = $self->save_path);
		1683	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1684	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1685	}
		1686
1157	sub try_load_header($) {	1687	sub load_header_from($) {
1158	my ($path) = @_;	1688	my ($self, $path) = @_;
1159		1689
1160	utf8::encode $path;	1690	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1691	#aio_open $path, O_RDONLY, 0
		1692	# or return;
		1693
		1694	$self->_load_header ($path)
1162	or return;	1695	or return;
1163		1696
1164	my $map = cf::map::new	1697	$self->{load_path} = $path;
		1698
		1699	1
		1700	}
		1701
		1702	sub load_header_orig {
		1703	my ($self) = @_;
		1704
		1705	$self->load_header_from ($self->load_path)
		1706	}
		1707
		1708	sub load_header_temp {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->save_path)
		1712	}
		1713
		1714	sub prepare_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->last_access ((delete $self->{last_access})
		1718	|| $cf::RUNTIME); #d#
		1719	# safety
		1720	$self->{instantiate_time} = $cf::RUNTIME
		1721	if $self->{instantiate_time} > $cf::RUNTIME;
		1722	}
		1723
		1724	sub prepare_orig {
		1725	my ($self) = @_;
		1726
		1727	$self->{load_original} = 1;
		1728	$self->{instantiate_time} = $cf::RUNTIME;
		1729	$self->last_access ($cf::RUNTIME);
		1730	$self->instantiate;
		1731	}
		1732
		1733	sub load_header {
		1734	my ($self) = @_;
		1735
		1736	if ($self->load_header_temp) {
		1737	$self->prepare_temp;
		1738	} else {
		1739	$self->load_header_orig
1165	or return;	1740	or return;
		1741	$self->prepare_orig;
		1742	}
1166		1743
1167	# for better error messages only, will be overwritten	1744	$self->{deny_reset} = 1
1168	$map->path ($path);	1745	if $self->no_reset;
1169		1746
1170	$map->load_header ($path)	1747	$self->default_region (cf::region::find_by_path $self->{path})
1171	or return;	1748	unless $self->default_region;
1172		1749
1173	$map->{load_path} = $path;	1750	1
1174
1175	$map
1176	}	1751	}
1177		1752
1178	sub find;	1753	sub find;
1179	sub find {	1754	sub find {
1180	my ($path, $origin) = @_;	1755	my ($path, $origin) = @_;
1181		1756
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1757	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1758
1187	cf::lock_wait "map_find:$key";	1759	cf::lock_wait "map_find:$path";
1188		1760
1189	$cf::MAP{$key} || do {	1761	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1762	my $guard = cf::lock_acquire "map_find:$path";
1191		1763	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1764	or return;
1211		1765
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1766	$map->{last_save} = $cf::RUNTIME;
1224		1767
1225	Coro::cede;	1768	$map->load_header
		1769	or return;
1226		1770
1227	if ($map->should_reset) {	1771	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1772	# doing this can freeze the server in a sync job, obviously
		1773	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1774	$map->reset;
1229	undef $guard;	1775	undef $guard;
1230	$map = find $path	1776	return find $path;
1231	or return;
1232	}	1777	}
1233		1778
1234	$cf::MAP{$key} = $map	1779	$cf::MAP{$path} = $map
1235	}	1780	}
1236	}	1781	}
		1782
		1783	sub pre_load { }
		1784	sub post_load { }
1237		1785
1238	sub load {	1786	sub load {
1239	my ($self) = @_;	1787	my ($self) = @_;
1240		1788
		1789	local $self->{deny_reset} = 1; # loading can take a long time
		1790
1241	my $path = $self->{path};	1791	my $path = $self->{path};
		1792
		1793	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1794	my $guard = cf::lock_acquire "map_load:$path";
1243		1795
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1796	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1797
1246	$self->in_memory (cf::MAP_LOADING);	1798	$self->in_memory (cf::MAP_LOADING);
1247		1799
1248	$self->alloc;	1800	$self->alloc;
		1801
		1802	$self->pre_load;
		1803	Coro::cede;
		1804
1249	$self->load_objects ($self->{load_path}, 1)	1805	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1806	or return;
1251		1807
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1808	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1809	if delete $self->{load_original};
1254		1810
1255	if (my $uniq = $path->uniq_path) {	1811	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1812	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1813	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1814	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1815	$self->_load_objects ($uniq, 0);
1260	}	1816	}
1261	}	1817	}
1262		1818
1263	Coro::cede;	1819	Coro::cede;
1264
1265	# now do the right thing for maps	1820	# now do the right thing for maps
1266	$self->link_multipart_objects;	1821	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1822	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1823	unless $self->difficulty;
		1824	Coro::cede;
		1825
		1826	unless ($self->{deny_activate}) {
		1827	$self->decay_objects;
		1828	$self->fix_auto_apply;
		1829	$self->update_buttons;
		1830	Coro::cede;
		1831	$self->set_darkness_map;
		1832	Coro::cede;
1278	$self->activate;	1833	$self->activate;
1279	}	1834	}
1280		1835
1281	Coro::cede;
1282
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1836	$self->in_memory (cf::MAP_IN_MEMORY);
		1837	}
		1838
		1839	$self->post_load;
		1840	}
		1841
		1842	sub customise_for {
		1843	my ($self, $ob) = @_;
		1844
		1845	return find "~" . $ob->name . "/" . $self->{path}
		1846	if $self->per_player;
		1847
		1848	# return find "?party/" . $ob->name . "/" . $self->{path}
		1849	# if $self->per_party;
		1850
		1851	$self
		1852	}
		1853
		1854	# find and load all maps in the 3x3 area around a map
		1855	sub load_diag {
		1856	my ($map) = @_;
		1857
		1858	my @diag; # diagonal neighbours
		1859
		1860	for (0 .. 3) {
		1861	my $neigh = $map->tile_path ($_)
		1862	or next;
		1863	$neigh = find $neigh, $map
		1864	or next;
		1865	$neigh->load;
		1866
		1867	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1868	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1869	}
		1870
		1871	for (@diag) {
		1872	my $neigh = find @$_
		1873	or next;
		1874	$neigh->load;
		1875	}
1284	}	1876	}
1285		1877
1286	sub find_sync {	1878	sub find_sync {
1287	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1288		1880
1289	cf::sync_job { cf::map::find $path, $origin }	1881	cf::sync_job { find $path, $origin }
1290	}	1882	}
1291		1883
1292	sub do_load_sync {	1884	sub do_load_sync {
1293	my ($map) = @_;	1885	my ($map) = @_;
1294		1886
1295	cf::sync_job { $map->load };	1887	cf::sync_job { $map->load };
1296	}	1888	}
1297		1889
		1890	our %MAP_PREFETCH;
		1891	our $MAP_PREFETCHER = undef;
		1892
		1893	sub find_async {
		1894	my ($path, $origin) = @_;
		1895
		1896	$path = normalise $path, $origin && $origin->{path};
		1897
		1898	if (my $map = $cf::MAP{$path}) {
		1899	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1900	}
		1901
		1902	undef $MAP_PREFETCH{$path};
		1903	$MAP_PREFETCHER ||= cf::async {
		1904	while (%MAP_PREFETCH) {
		1905	for my $path (keys %MAP_PREFETCH) {
		1906	my $map = find $path
		1907	or next;
		1908	$map->load;
		1909
		1910	delete $MAP_PREFETCH{$path};
		1911	}
		1912	}
		1913	undef $MAP_PREFETCHER;
		1914	};
		1915	$MAP_PREFETCHER->prio (6);
		1916
		1917	()
		1918	}
		1919
1298	sub save {	1920	sub save {
1299	my ($self) = @_;	1921	my ($self) = @_;
1300		1922
		1923	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1924
1301	$self->{last_save} = $cf::RUNTIME;	1925	$self->{last_save} = $cf::RUNTIME;
1302		1926
1303	return unless $self->dirty;	1927	return unless $self->dirty;
1304		1928
1305	my $save = $self->{path}->save_path; utf8::encode $save;	1929	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1930	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		1931
1308	$self->{load_path} = $save;	1932	$self->{load_path} = $save;
1309		1933
1310	return if $self->{deny_save};	1934	return if $self->{deny_save};
1311		1935
1312	local $self->{last_access} = $self->last_access;#d#	1936	local $self->{last_access} = $self->last_access;#d#
1313		1937
		1938	cf::async {
		1939	$_->contr->save for $self->players;
		1940	};
		1941
1314	if ($uniq) {	1942	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1943	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	1944	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	1945	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1946	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	1947	}
1320	}	1948	}
1321		1949
1322	sub swap_out {	1950	sub swap_out {
1323	my ($self) = @_;	1951	my ($self) = @_;
1324		1952
1325	# save first because save cedes	1953	# save first because save cedes
1326	$self->save;	1954	$self->save;
		1955
		1956	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		1957
1328	return if $self->players;	1958	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	1959	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	1960	return if $self->{deny_save};
1331		1961
…		…
1335		1965
1336	sub reset_at {	1966	sub reset_at {
1337	my ($self) = @_;	1967	my ($self) = @_;
1338		1968
1339	# TODO: safety, remove and allow resettable per-player maps	1969	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1970	return 1e99 if $self->{deny_reset};
1342		1971
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1972	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1973	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1974
…		…
1350	my ($self) = @_;	1979	my ($self) = @_;
1351		1980
1352	$self->reset_at <= $cf::RUNTIME	1981	$self->reset_at <= $cf::RUNTIME
1353	}	1982	}
1354		1983
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1984	sub reset {
1377	my ($self) = @_;	1985	my ($self) = @_;
1378		1986
		1987	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1988
1379	return if $self->players;	1989	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		1990
1382	warn "resetting map ", $self->path;#d#	1991	warn "resetting map ", $self->path;
		1992
		1993	$self->in_memory (cf::MAP_SWAPPED);
		1994
		1995	# need to save uniques path
		1996	unless ($self->{deny_save}) {
		1997	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1998
		1999	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2000	if $uniq;
		2001	}
1383		2002
1384	delete $cf::MAP{$self->path};	2003	delete $cf::MAP{$self->path};
		2004
		2005	$self->clear;
1385		2006
1386	$_->clear_links_to ($self) for values %cf::MAP;	2007	$_->clear_links_to ($self) for values %cf::MAP;
1387		2008
1388	$self->unlink_save;	2009	$self->unlink_save;
1389	$self->destroy;	2010	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	2013	my $nuke_counter = "aaaa";
1393		2014
1394	sub nuke {	2015	sub nuke {
1395	my ($self) = @_;	2016	my ($self) = @_;
1396		2017
		2018	delete $cf::MAP{$self->path};
		2019
		2020	$self->unlink_save;
		2021
		2022	bless $self, "cf::map";
		2023	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2024	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2025	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2026	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2027
		2028	$cf::MAP{$self->path} = $self;
		2029
1400	$self->reset; # polite request, might not happen	2030	$self->reset; # polite request, might not happen
1401	}	2031	}
1402		2032
1403	sub customise_for {	2033	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2034
1406	if ($map->per_player) {	2035	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2036	maps. May block.
		2037
		2038	=cut
		2039
		2040	sub tmp_maps() {
1408	}	2041	[
1409		2042	map {
1410	$map	2043	utf8::decode $_;
		2044	/\.map$/
		2045	? normalise $_
		2046	: ()
		2047	} @{ aio_readdir $TMPDIR or [] }
		2048	]
1411	}	2049	}
1412		2050
1413	sub emergency_save {	2051	=item $maps = cf::map::random_maps
1414	my $freeze_guard = cf::freeze_mainloop;
1415		2052
1416	warn "enter emergency map save\n";	2053	Returns an arrayref with all map paths of currently instantiated and saved
		2054	random maps. May block.
1417		2055
1418	cf::sync_job {	2056	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2057
1423	warn "end emergency map save\n";	2058	sub random_maps() {
		2059	[
		2060	map {
		2061	utf8::decode $_;
		2062	/\.map$/
		2063	? normalise "?random/$_"
		2064	: ()
		2065	} @{ aio_readdir $RANDOMDIR or [] }
		2066	]
		2067	}
		2068
		2069	=item cf::map::unique_maps
		2070
		2071	Returns an arrayref of paths of all shared maps that have
		2072	instantiated unique items. May block.
		2073
		2074	=cut
		2075
		2076	sub unique_maps() {
		2077	[
		2078	map {
		2079	utf8::decode $_;
		2080	/\.map$/
		2081	? normalise $_
		2082	: ()
		2083	} @{ aio_readdir $UNIQUEDIR or [] }
		2084	]
1424	}	2085	}
1425		2086
1426	package cf;	2087	package cf;
1427		2088
1428	=back	2089	=back
1429		2090
		2091	=head3 cf::object
		2092
		2093	=cut
		2094
		2095	package cf::object;
		2096
		2097	=over 4
		2098
		2099	=item $ob->inv_recursive
		2100
		2101	Returns the inventory of the object _and_ their inventories, recursively.
		2102
		2103	=cut
		2104
		2105	sub inv_recursive_;
		2106	sub inv_recursive_ {
		2107	map { $_, inv_recursive_ $_->inv } @_
		2108	}
		2109
		2110	sub inv_recursive {
		2111	inv_recursive_ inv $_[0]
		2112	}
		2113
		2114	package cf;
		2115
		2116	=back
1430		2117
1431	=head3 cf::object::player	2118	=head3 cf::object::player
1432		2119
1433	=over 4	2120	=over 4
1434		2121
…		…
1448		2135
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2136	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2137
1451	if ($self->{record_replies}) {	2138	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2139	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2140
1453	} else {	2141	} else {
		2142	my $pl = $self->contr;
		2143
		2144	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2145	my $diag = $pl->{npc_dialog};
		2146	$diag->{pl}->ext_reply (
		2147	$diag->{id},
		2148	msgtype => "reply",
		2149	msg => $diag->{pl}->expand_cfpod ($msg),
		2150	add_topics => []
		2151	);
		2152
		2153	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2154	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2155	$self->message ($msg, $flags);
		2156	}
1456	}	2157	}
1457	}	2158	}
1458		2159
1459	=item $player_object->may ("access")	2160	=item $player_object->may ("access")
1460		2161
…		…
1474		2175
1475	=item $player_object->enter_link	2176	=item $player_object->enter_link
1476		2177
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2178	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2179
1479	The player should be reaosnably safe there for short amounts of time. You	2180	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	2181	I<MUST> call C<leave_link> as soon as possible, though.
1481		2182
		2183	Will never block.
		2184
1482	=item $player_object->leave_link ($map, $x, $y)	2185	=item $player_object->leave_link ($map, $x, $y)
1483		2186
1484	Moves the player out of the specila link map onto the given map. If the	2187	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2188	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2189	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2190	fails, to the emergency map position.
1488		2191
1489	Might block.	2192	Might block.
1490		2193
1491	=cut	2194	=cut
		2195
		2196	sub link_map {
		2197	unless ($LINK_MAP) {
		2198	$LINK_MAP = cf::map::find "{link}"
		2199	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2200	$LINK_MAP->load;
		2201	}
		2202
		2203	$LINK_MAP
		2204	}
1492		2205
1493	sub cf::object::player::enter_link {	2206	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2207	my ($self) = @_;
1495		2208
1496	$self->deactivate_recursive;	2209	$self->deactivate_recursive;
1497		2210
1498	return if $self->map == $LINK_MAP;	2211	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2212
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2213	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2214	if $self->map && $self->map->{path} ne "{link}";
1502		2215
1503	$self->enter_map ($LINK_MAP, 20, 20);	2216	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2217	}
1505		2218
1506	sub cf::object::player::leave_link {	2219	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2220	my ($self, $map, $x, $y) = @_;
		2221
		2222	return unless $self->contr->active;
1508		2223
1509	my $link_pos = delete $self->{_link_pos};	2224	my $link_pos = delete $self->{_link_pos};
1510		2225
1511	unless ($map) {	2226	unless ($map) {
1512	# restore original map position	2227	# restore original map position
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2241	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2242	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2243	if $x <=0 && $y <= 0;
1529		2244
1530	$map->load;	2245	$map->load;
		2246	$map->load_diag;
1531		2247
		2248	return unless $self->contr->active;
1532	$self->activate_recursive;	2249	$self->activate_recursive;
		2250
		2251	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2252	$self->enter_map ($map, $x, $y);
1534	}	2253	}
1535		2254
1536	cf::player->attach (
1537	on_logout => sub {
1538	my ($pl) = @_;
1539
1540	# abort map switching before logout
1541	if ($pl->ob->{_link_pos}) {
1542	cf::sync_job {
1543	$pl->ob->leave_link
1544	};
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto ($path, $x, $y)	2255	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1565		2256
		2257	Moves the player to the given map-path and coordinates by first freezing
		2258	her, loading and preparing them map, calling the provided $check callback
		2259	that has to return the map if sucecssful, and then unfreezes the player on
		2260	the new (success) or old (failed) map position.
		2261
1566	=cut	2262	=cut
		2263
		2264	our $GOTOGEN;
1567		2265
1568	sub cf::object::player::goto {	2266	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2267	my ($self, $path, $x, $y, $check) = @_;
		2268
		2269	# do generation counting so two concurrent goto's will be executed in-order
		2270	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2271
1571	$self->enter_link;	2272	$self->enter_link;
1572		2273
1573	(cf::async {	2274	(async {
1574	$path = new cf::path $path;	2275	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	2276	my $map = cf::map::find $path;
		2277
		2278	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2279	$map = $map->customise_for ($self);
1578		2280	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2281	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2282	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2283	}
1583		2284
		2285	$map
		2286	};
		2287
		2288	if ($@) {
		2289	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	LOG llevError | logBacktrace, Carp::longmess $@;
		2291	}
		2292
		2293	if ($gen == $self->{_goto_generation}) {
		2294	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2295	$self->leave_link ($map, $x, $y);
		2296	}
1585	})->prio (1);	2297	})->prio (1);
1586	}	2298	}
1587		2299
1588	=item $player_object->enter_exit ($exit_object)	2300	=item $player_object->enter_exit ($exit_object)
1589		2301
…		…
1591		2303
1592	sub parse_random_map_params {	2304	sub parse_random_map_params {
1593	my ($spec) = @_;	2305	my ($spec) = @_;
1594		2306
1595	my $rmp = { # defaults	2307	my $rmp = { # defaults
1596	xsize => 10,	2308	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2309	ysize => (cf::rndm 15, 40),
		2310	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2311	#layout => string,
1598	};	2312	};
1599		2313
1600	for (split /\n/, $spec) {	2314	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2315	my ($k, $v) = split /\s+/, $_, 2;
1602		2316
…		…
1606	$rmp	2320	$rmp
1607	}	2321	}
1608		2322
1609	sub prepare_random_map {	2323	sub prepare_random_map {
1610	my ($exit) = @_;	2324	my ($exit) = @_;
		2325
		2326	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2327
1612	# all this does is basically replace the /! path by	2328	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2329	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2330	# that depends on the exit object
1615		2331
1616	my $rmp = parse_random_map_params $exit->msg;	2332	my $rmp = parse_random_map_params $exit->msg;
1617		2333
1618	if ($exit->map) {	2334	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2335	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2336	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2337	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2338	$rmp->{origin_y} = $exit->y;
1623	}	2339	}
1624		2340
1625	$rmp->{random_seed} ||= $exit->random_seed;	2341	$rmp->{random_seed} ||= $exit->random_seed;
1626		2342
1627	my $data = cf::to_json $rmp;	2343	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2344	my $md5 = Digest::MD5::md5_hex $data;
		2345	my $meta = "$RANDOMDIR/$md5.meta";
1629		2346
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2347	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2348	aio_write $fh, 0, (length $data), $data, 0;
		2349	undef $fh;
		2350	aio_rename "$meta~", $meta;
1632		2351
1633	$exit->slaying ("?random/$md5");	2352	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2353	$exit->msg (undef);
1635	}	2354	}
1636	}	2355	}
…		…
1638	sub cf::object::player::enter_exit {	2357	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2358	my ($self, $exit) = @_;
1640		2359
1641	return unless $self->type == cf::PLAYER;	2360	return unless $self->type == cf::PLAYER;
1642		2361
		2362	if ($exit->slaying eq "/!") {
		2363	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2364	# the problem is that $exit might not survive long enough
		2365	# so it needs to be done right now, right here
		2366	cf::sync_job { prepare_random_map $exit };
		2367	}
		2368
		2369	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2370	my $hp = $exit->stats->hp;
		2371	my $sp = $exit->stats->sp;
		2372
1643	$self->enter_link;	2373	$self->enter_link;
1644		2374
		2375	# if exit is damned, update players death & WoR home-position
		2376	$self->contr->savebed ($slaying, $hp, $sp)
		2377	if $exit->flag (FLAG_DAMNED);
		2378
1645	(cf::async {	2379	(async {
1646	$self->deactivate_recursive; # just to be sure	2380	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2381	unless (eval {
1648	prepare_random_map $exit	2382	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653		2383
1654	1;	2384	1;
1655	}) {	2385	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2386	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2387	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2388	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2389	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2390
1661	warn "ERROR in enter_exit: $@";	2391	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2392	$self->leave_link;
1663	}	2393	}
1664	})->prio (1);	2394	})->prio (1);
…		…
1677		2407
1678	sub cf::client::send_drawinfo {	2408	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2409	my ($self, $text, $flags) = @_;
1680		2410
1681	utf8::encode $text;	2411	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2412	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2413	}
1684		2414
		2415	=item $client->send_msg ($color, $type, $msg, [extra...])
		2416
		2417	Send a drawinfo or msg packet to the client, formatting the msg for the
		2418	client if neccessary. C<$type> should be a string identifying the type of
		2419	the message, with C<log> being the default. If C<$color> is negative, suppress
		2420	the message unless the client supports the msg packet.
		2421
		2422	=cut
		2423
		2424	sub cf::client::send_msg {
		2425	my ($self, $color, $type, $msg, @extra) = @_;
		2426
		2427	$msg = $self->pl->expand_cfpod ($msg);
		2428
		2429	return unless @extra || length $msg;
		2430
		2431	if ($self->can_msg) {
		2432	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2433	} else {
		2434	# replace some tags by gcfclient-compatible ones
		2435	for ($msg) {
		2436	1 while
		2437	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2438	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2439	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2440	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2441	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2442	}
		2443
		2444	if ($color >= 0) {
		2445	if (0 && $msg =~ /\[/) {
		2446	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2447	} else {
		2448	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2449	$self->send_packet ("drawinfo $color $msg")
		2450	}
		2451	}
		2452	}
		2453	}
		2454
		2455	=item $client->ext_event ($type, %msg)
		2456
		2457	Sends an ext event to the client.
		2458
		2459	=cut
		2460
		2461	sub cf::client::ext_event($$%) {
		2462	my ($self, $type, %msg) = @_;
		2463
		2464	$msg{msgtype} = "event_$type";
		2465	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2466	}
1685		2467
1686	=item $success = $client->query ($flags, "text", \&cb)	2468	=item $success = $client->query ($flags, "text", \&cb)
1687		2469
1688	Queues a query to the client, calling the given callback with	2470	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>,	2471	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>.	2472	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2473
1692	Queries can fail, so check the return code. Or don't, as queries will become	2474	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2475	become reliable at some point in the future.
1694		2476
1695	=cut	2477	=cut
1696		2478
1697	sub cf::client::query {	2479	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2480	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2488	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2489	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2490
1709	$self->send_packet ($self->{query_queue}[0][0])	2491	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2492	if @{ $self->{query_queue} } == 1;
		2493
		2494	1
1711	}	2495	}
1712		2496
1713	cf::client->attach (	2497	cf::client->attach (
		2498	on_connect => sub {
		2499	my ($ns) = @_;
		2500
		2501	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2502	},
1714	on_reply => sub {	2503	on_reply => sub {
1715	my ($ns, $msg) = @_;	2504	my ($ns, $msg) = @_;
1716		2505
1717	# this weird shuffling is so that direct followup queries	2506	# this weird shuffling is so that direct followup queries
1718	# get handled first	2507	# get handled first
1719	my $queue = delete $ns->{query_queue}	2508	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2509	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2510
1722	(shift @$queue)->[1]->($msg);	2511	(shift @$queue)->[1]->($msg);
		2512	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2513
1724	push @{ $ns->{query_queue} }, @$queue;	2514	push @{ $ns->{query_queue} }, @$queue;
1725		2515
1726	if (@{ $ns->{query_queue} } == @$queue) {	2516	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2517	if (@$queue) {
…		…
1729	} else {	2519	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2520	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2521	}
1732	}	2522	}
1733	},	2523	},
		2524	on_exticmd => sub {
		2525	my ($ns, $buf) = @_;
		2526
		2527	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2528
		2529	if (ref $msg) {
		2530	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2531	if (my %reply = $cb->($ns, $msg)) {
		2532	$reply{msgid} = $msg->{msgid};
		2533	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2534	}
		2535	}
		2536	} else {
		2537	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2538	}
		2539
		2540	cf::override;
		2541	},
1734	);	2542	);
1735		2543
1736	=item $client->coro (\&cb)	2544	=item $client->async (\&cb)
1737		2545
1738	Create a new coroutine, running the specified callback. The coroutine will	2546	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2547	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2548	or loss of connection).
1741		2549
1742	=cut	2550	=cut
1743		2551
1744	sub cf::client::coro {	2552	sub cf::client::async {
1745	my ($self, $cb) = @_;	2553	my ($self, $cb) = @_;
1746		2554
1747	my $coro = &cf::async ($cb);	2555	my $coro = &Coro::async ($cb);
1748		2556
1749	$coro->on_destroy (sub {	2557	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2558	delete $self->{_coro}{$coro+0};
1751	});	2559	});
1752		2560
…		…
1785		2593
1786	# here we export the classes and methods available to script code	2594	# here we export the classes and methods available to script code
1787		2595
1788	=pod	2596	=pod
1789		2597
1790	The following fucntions and emthods are available within a safe environment:	2598	The following functions and methods are available within a safe environment:
1791		2599
1792	cf::object contr pay_amount pay_player map	2600	cf::object
		2601	contr pay_amount pay_player map x y force_find force_add
		2602	insert remove
		2603
1793	cf::object::player player	2604	cf::object::player
1794	cf::player peaceful	2605	player
1795	cf::map trigger	2606
		2607	cf::player
		2608	peaceful
		2609
		2610	cf::map
		2611	trigger
1796		2612
1797	=cut	2613	=cut
1798		2614
1799	for (	2615	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	2616	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2617	insert remove)],
1801	["cf::object::player" => qw(player)],	2618	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	2619	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	2620	["cf::map" => qw(trigger)],
1804	) {	2621	) {
1805	no strict 'refs';	2622	no strict 'refs';
…		…
1876	=back	2693	=back
1877		2694
1878	=cut	2695	=cut
1879		2696
1880	#############################################################################	2697	#############################################################################
		2698	# the server's init and main functions
1881		2699
1882	=head2 EXTENSION DATABASE SUPPORT	2700	sub load_facedata($) {
		2701	my ($path) = @_;
1883		2702
1884	Crossfire maintains a very simple database for extension use. It can	2703	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2704
1888	The parameter C<$family> should best start with the name of the extension	2705	my $facedata;
1889	using it, it should be unique.	2706	0 < aio_load $path, $facedata
		2707	or die "$path: $!";
1890		2708
1891	=over 4	2709	$facedata = Coro::Storable::thaw $facedata;
1892		2710
1893	=item $hashref = cf::db_get $family	2711	$facedata->{version} == 2
		2712	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2713
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	}	2714	{
		2715	my $faces = $facedata->{faceinfo};
1931		2716
1932	my $pid;	2717	while (my ($face, $info) = each %$faces) {
1933		2718	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1934	sub db_save() {	2719	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1935	waitpid $pid, 0 if $pid;	2720	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1936	if (0 == ($pid = fork)) {	2721	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1937	$DB->{_meta}{version} = 1;	2722	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]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2723	}
1980	);
1981	}
1982		2724
1983	#############################################################################	2725	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2726	next unless $info->{smooth};
		2727	my $idx = cf::face::find $face
		2728	or next;
		2729	if (my $smooth = cf::face::find $info->{smooth}) {
		2730	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2731	} else {
		2732	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2733	}
		2734	Coro::cede;
		2735	}
		2736	}
		2737
		2738	{
		2739	my $anims = $facedata->{animinfo};
		2740
		2741	while (my ($anim, $info) = each %$anims) {
		2742	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2743	Coro::cede;
		2744	}
		2745
		2746	cf::anim::invalidate_all; # d'oh
		2747	}
		2748
		2749	1
		2750	}
		2751
		2752	sub reload_regions {
		2753	load_resource_file "$MAPDIR/regions"
		2754	or die "unable to load regions file\n";
		2755	}
		2756
		2757	sub reload_facedata {
		2758	load_facedata "$DATADIR/facedata"
		2759	or die "unable to load facedata\n";
		2760	}
		2761
		2762	sub reload_archetypes {
		2763	load_resource_file "$DATADIR/archetypes"
		2764	or die "unable to load archetypes\n";
		2765	#d# NEED to laod twice to resolve forward references
		2766	# this really needs to be done in an extra post-pass
		2767	# (which needs to be synchronous, so solve it differently)
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	}
		2771
		2772	sub reload_treasures {
		2773	load_resource_file "$DATADIR/treasures"
		2774	or die "unable to load treasurelists\n";
		2775	}
		2776
		2777	sub reload_resources {
		2778	warn "reloading resource files...\n";
		2779
		2780	reload_regions;
		2781	reload_facedata;
		2782	#reload_archetypes;#d#
		2783	reload_archetypes;
		2784	reload_treasures;
		2785
		2786	warn "finished reloading resource files\n";
		2787	}
		2788
		2789	sub init {
		2790	reload_resources;
		2791	}
1985		2792
1986	sub cfg_load {	2793	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2794	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2795	or return;
1989		2796
1990	local $/;	2797	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2798	*CFG = YAML::Syck::Load <$fh>;
1992		2799
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2800	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2801
		2802	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2803	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2804
1995	if (exists $CFG{mlockall}) {	2805	if (exists $CFG{mlockall}) {
1996	eval {	2806	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2807	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2808	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2809	};
2000	warn $@ if $@;	2810	warn $@ if $@;
2001	}	2811	}
2002	}	2812	}
2003		2813
2004	sub main {	2814	sub main {
2005	# we must not ever block the main coroutine	2815	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2816	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2817	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2818	(async {
2009	Event::one_event;	2819	Event::one_event;
2010	})->();	2820	})->prio (Coro::PRIO_MAX);
2011	};	2821	};
2012		2822
2013	cfg_load;	2823	cfg_load;
2014	db_load;	2824	db_init;
2015	load_extensions;	2825	load_extensions;
		2826
		2827	$TICK_WATCHER->start;
2016	Event::loop;	2828	Event::loop;
2017	}	2829	}
2018		2830
2019	#############################################################################	2831	#############################################################################
2020	# initialisation	2832	# initialisation and cleanup
2021		2833
		2834	# install some emergency cleanup handlers
		2835	BEGIN {
		2836	for my $signal (qw(INT HUP TERM)) {
		2837	Event->signal (
		2838	reentrant => 0,
		2839	data => WF_AUTOCANCEL,
		2840	signal => $signal,
		2841	prio => 0,
		2842	cb => sub {
		2843	cf::cleanup "SIG$signal";
		2844	},
		2845	);
		2846	}
		2847	}
		2848
		2849	sub write_runtime {
		2850	my $runtime = "$LOCALDIR/runtime";
		2851
		2852	# first touch the runtime file to show we are still running:
		2853	# the fsync below can take a very very long time.
		2854
		2855	IO::AIO::aio_utime $runtime, undef, undef;
		2856
		2857	my $guard = cf::lock_acquire "write_runtime";
		2858
		2859	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2860	or return;
		2861
		2862	my $value = $cf::RUNTIME + 90 + 10;
		2863	# 10 is the runtime save interval, for a monotonic clock
		2864	# 60 allows for the watchdog to kill the server.
		2865
		2866	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2867	and return;
		2868
		2869	# always fsync - this file is important
		2870	aio_fsync $fh
		2871	and return;
		2872
		2873	# touch it again to show we are up-to-date
		2874	aio_utime $fh, undef, undef;
		2875
		2876	close $fh
		2877	or return;
		2878
		2879	aio_rename "$runtime~", $runtime
		2880	and return;
		2881
		2882	warn "runtime file written.\n";
		2883
		2884	1
		2885	}
		2886
		2887	sub emergency_save() {
		2888	my $freeze_guard = cf::freeze_mainloop;
		2889
		2890	warn "enter emergency perl save\n";
		2891
		2892	cf::sync_job {
		2893	# use a peculiar iteration method to avoid tripping on perl
		2894	# refcount bugs in for. also avoids problems with players
		2895	# and maps saved/destroyed asynchronously.
		2896	warn "begin emergency player save\n";
		2897	for my $login (keys %cf::PLAYER) {
		2898	my $pl = $cf::PLAYER{$login} or next;
		2899	$pl->valid or next;
		2900	$pl->save;
		2901	}
		2902	warn "end emergency player save\n";
		2903
		2904	warn "begin emergency map save\n";
		2905	for my $path (keys %cf::MAP) {
		2906	my $map = $cf::MAP{$path} or next;
		2907	$map->valid or next;
		2908	$map->save;
		2909	}
		2910	warn "end emergency map save\n";
		2911
		2912	warn "begin emergency database checkpoint\n";
		2913	BDB::db_env_txn_checkpoint $DB_ENV;
		2914	warn "end emergency database checkpoint\n";
		2915	};
		2916
		2917	warn "leave emergency perl save\n";
		2918	}
		2919
		2920	sub post_cleanup {
		2921	my ($make_core) = @_;
		2922
		2923	warn Carp::longmess "post_cleanup backtrace"
		2924	if $make_core;
		2925	}
		2926
2022	sub reload() {	2927	sub do_reload_perl() {
2023	# can/must only be called in main	2928	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2929	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2930	warn "can only reload from main coroutine";
2026	return;	2931	return;
2027	}	2932	}
2028		2933
2029	warn "reloading...";	2934	warn "reloading...";
2030		2935
2031	my $guard = freeze_mainloop;	2936	warn "entering sync_job";
		2937
		2938	cf::sync_job {
		2939	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2940	cf::emergency_save;
		2941	cf::write_runtime; # external watchdog should not bark
2033		2942
2034	eval {	2943	warn "syncing database to disk";
		2944	BDB::db_env_txn_checkpoint $DB_ENV;
		2945
2035	# if anything goes wrong in here, we should simply crash as we already saved	2946	# if anything goes wrong in here, we should simply crash as we already saved
2036		2947
2037	# cancel all watchers	2948	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2949	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2950	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2951	}
2041		2952
		2953	warn "flushing outstanding aio requests";
		2954	for (;;) {
		2955	BDB::flush;
		2956	IO::AIO::flush;
		2957	Coro::cede;
		2958	last unless IO::AIO::nreqs || BDB::nreqs;
		2959	warn "iterate...";
		2960	}
		2961
		2962	++$RELOAD;
		2963
2042	# cancel all extension coros	2964	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2965	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2966	%EXT_CORO = ();
2045		2967
2046	# unload all extensions	2968	warn "removing commands";
2047	for (@exts) {	2969	%COMMAND = ();
		2970
		2971	warn "removing ext/exti commands";
		2972	%EXTCMD = ();
		2973	%EXTICMD = ();
		2974
		2975	warn "unloading/nuking all extensions";
		2976	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2977	warn "... unloading $pkg";
2049	unload_extension $_;	2978
		2979	if (my $cb = $pkg->can ("unload")) {
		2980	eval {
		2981	$cb->($pkg);
		2982	1
		2983	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2984	}
2051		2985
		2986	warn "... nuking $pkg";
		2987	Symbol::delete_package $pkg;
		2988	}
		2989
2052	# unload all modules loaded from $LIBDIR	2990	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2991	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2992	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2993
2056	warn "removing <$k>";	2994	warn "... unloading $k";
2057	delete $INC{$k};	2995	delete $INC{$k};
2058		2996
2059	$k =~ s/\.pm$//;	2997	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2998	$k =~ s/\//::/g;
2061		2999
…		…
2064	}	3002	}
2065		3003
2066	Symbol::delete_package $k;	3004	Symbol::delete_package $k;
2067	}	3005	}
2068		3006
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3007	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3008	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3009	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3010
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3011	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3012	delete $INC{"cf.pm"};
		3013	delete $INC{"cf/pod.pm"};
2082		3014
2083	# don't, removes xs symbols, too,	3015	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3016	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3017	#Symbol::delete_package __PACKAGE__;
2086		3018
2087	# reload cf.pm	3019	warn "unload completed, starting to reload now";
		3020
2088	warn "reloading cf.pm";	3021	warn "reloading cf.pm";
2089	require cf;	3022	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3023	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3024
2092	# load config and database again	3025	warn "loading config and database again";
2093	cf::cfg_load;	3026	cf::cfg_load;
2094	cf::db_load;
2095		3027
2096	# load extensions
2097	warn "load extensions";	3028	warn "loading extensions";
2098	cf::load_extensions;	3029	cf::load_extensions;
2099		3030
2100	# reattach attachments to objects	3031	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3032	_global_reattach; # objects, sockets
2102	_global_reattach;	3033	warn "reattaching attachments to maps";
2103	};	3034	reattach $_ for values %MAP;
		3035	warn "reattaching attachments to players";
		3036	reattach $_ for values %PLAYER;
2104		3037
2105	if ($@) {	3038	warn "leaving sync_job";
		3039
		3040	1
		3041	} or do {
2106	warn $@;	3042	warn $@;
2107	warn "error while reloading, exiting.";	3043	warn "error while reloading, exiting.";
2108	exit 1;	3044	exit 1;
2109	}	3045	};
2110		3046
2111	warn "reloaded successfully";	3047	warn "reloaded";
2112	};	3048	};
2113		3049
2114	#############################################################################	3050	our $RELOAD_WATCHER; # used only during reload
2115		3051
2116	unless ($LINK_MAP) {	3052	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3053	# doing reload synchronously and two reloads happen back-to-back,
		3054	# coro crashes during coro_state_free->destroy here.
2118		3055
2119	$LINK_MAP->width (41);	3056	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3057	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,	3058	after => 0,
		3059	data => WF_AUTOCANCEL,
2129	cb => sub {	3060	cb => sub {
2130	$_[0]->w->cancel;	3061	do_reload_perl;
2131		3062	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	});	3063	},
2150		3064	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3065	}
2156
2157	register "<global>", __PACKAGE__;
2158		3066
2159	register_command "reload" => sub {	3067	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3068	my ($who, $arg) = @_;
2161		3069
2162	if ($who->flag (FLAG_WIZ)) {	3070	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3071	$who->message ("reloading server.");
		3072	async { reload_perl };
2166	}	3073	}
2167	};	3074	};
2168		3075
2169	unshift @INC, $LIBDIR;	3076	unshift @INC, $LIBDIR;
2170		3077
		3078	my $bug_warning = 0;
		3079
		3080	our @WAIT_FOR_TICK;
		3081	our @WAIT_FOR_TICK_BEGIN;
		3082
		3083	sub wait_for_tick {
		3084	return unless $TICK_WATCHER->is_active;
		3085	return if $Coro::current == $Coro::main;
		3086
		3087	my $signal = new Coro::Signal;
		3088	push @WAIT_FOR_TICK, $signal;
		3089	$signal->wait;
		3090	}
		3091
		3092	sub wait_for_tick_begin {
		3093	return unless $TICK_WATCHER->is_active;
		3094	return if $Coro::current == $Coro::main;
		3095
		3096	my $signal = new Coro::Signal;
		3097	push @WAIT_FOR_TICK_BEGIN, $signal;
		3098	$signal->wait;
		3099	}
		3100
		3101	my $min = 1e6;#d#
		3102	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3103	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3104	reentrant => 0,
		3105	parked => 1,
2173	prio => 0,	3106	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3107	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3108	data => WF_AUTOCANCEL,
2176	cb => sub {	3109	cb => sub {
		3110	if ($Coro::current != $Coro::main) {
		3111	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3112	unless ++$bug_warning > 10;
		3113	return;
		3114	}
		3115
		3116	$NOW = $tick_start = Event::time;
		3117
2177	cf::server_tick; # one server iteration	3118	cf::server_tick; # one server iteration
		3119
		3120	0 && sync_job {#d#
		3121	for(1..10) {
		3122	my $t = Event::time;
		3123	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3124	or die;
		3125
		3126	$map->width (50);
		3127	$map->height (50);
		3128	$map->alloc;
		3129	$map->_load_objects ("/tmp/x.map", 1);
		3130	my $t = Event::time - $t;
		3131
		3132	#next unless $t < 0.0013;#d#
		3133	if ($t < $min) {
		3134	$min = $t;
		3135	}
		3136	$avg = $avg * 0.99 + $t * 0.01;
		3137	}
		3138	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3139	exit 0;
		3140	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3141	};
		3142
2178	$RUNTIME += $TICK;	3143	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	3144	$NEXT_TICK += $TICK;
2180		3145
		3146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3147	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3148	Coro::async_pool {
		3149	write_runtime
		3150	or warn "ERROR: unable to write runtime file: $!";
		3151	};
		3152	}
		3153
		3154	# my $AFTER = Event::time;
		3155	# warn $AFTER - $NOW;#d#
		3156
		3157	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3158	$sig->send;
		3159	}
		3160	while (my $sig = shift @WAIT_FOR_TICK) {
		3161	$sig->send;
		3162	}
		3163
		3164	$NOW = Event::time;
		3165
2181	# if we are delayed by four ticks or more, skip them all	3166	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3167	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2183		3168
2184	$TICK_WATCHER->at ($NEXT_TICK);	3169	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	3170	$TICK_WATCHER->start;
		3171
		3172	$LOAD = ($NOW - $tick_start) / $TICK;
		3173	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3174
		3175	_post_tick;
		3176
		3177
2186	},	3178	},
2187	);	3179	);
2188		3180
		3181	{
2189	IO::AIO::max_poll_time $TICK * 0.2;	3182	BDB::max_poll_time $TICK * 0.1;
2190		3183	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	3184	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	3185	fd => BDB::poll_fileno,
2193	poll => 'r',	3186	poll => 'r',
2194	prio => 5,	3187	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	3188	data => WF_AUTOCANCEL,
2201	after => 0,	3189	cb => \&BDB::poll_cb,
2202	interval => 10,	3190	);
2203	cb => sub {	3191	BDB::min_parallel 8;
2204	(Coro::unblock_sub {	3192
2205	write_runtime	3193	BDB::set_sync_prepare {
2206	or warn "ERROR: unable to write runtime file: $!";	3194	my $status;
		3195	my $current = $Coro::current;
		3196	(
		3197	sub {
		3198	$status = $!;
		3199	$current->ready; undef $current;
		3200	},
		3201	sub {
		3202	Coro::schedule while defined $current;
		3203	$! = $status;
		3204	},
		3205	)
		3206	};
		3207
		3208	unless ($DB_ENV) {
		3209	$DB_ENV = BDB::db_env_create;
		3210
		3211	cf::sync_job {
		3212	eval {
		3213	BDB::db_env_open
		3214	$DB_ENV,
		3215	$BDBDIR,
		3216	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3217	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3218	0666;
		3219
		3220	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3221
		3222	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3223	$DB_ENV->set_lk_detect;
		3224	};
		3225
		3226	cf::cleanup "db_env_open(db): $@" if $@;
2207	})->();	3227	};
2208	},	3228	}
2209	);	3229	}
		3230
		3231	{
		3232	IO::AIO::min_parallel 8;
		3233
		3234	undef $Coro::AIO::WATCHER;
		3235	IO::AIO::max_poll_time $TICK * 0.1;
		3236	$AIO_POLL_WATCHER = Event->io (
		3237	reentrant => 0,
		3238	data => WF_AUTOCANCEL,
		3239	fd => IO::AIO::poll_fileno,
		3240	poll => 'r',
		3241	prio => 6,
		3242	cb => \&IO::AIO::poll_cb,
		3243	);
		3244	}
		3245
		3246	my $_log_backtrace;
		3247
		3248	sub _log_backtrace {
		3249	my ($msg, @addr) = @_;
		3250
		3251	$msg =~ s/\n//;
		3252
		3253	# limit the # of concurrent backtraces
		3254	if ($_log_backtrace < 2) {
		3255	++$_log_backtrace;
		3256	async {
		3257	my @bt = fork_call {
		3258	@addr = map { sprintf "%x", $_ } @addr;
		3259	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3260	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3261	or die "addr2line: $!";
		3262
		3263	my @funcs;
		3264	my @res = <$fh>;
		3265	chomp for @res;
		3266	while (@res) {
		3267	my ($func, $line) = splice @res, 0, 2, ();
		3268	push @funcs, "[$func] $line";
		3269	}
		3270
		3271	@funcs
		3272	};
		3273
		3274	LOG llevInfo, "[ABT] $msg\n";
		3275	LOG llevInfo, "[ABT] $_\n" for @bt;
		3276	--$_log_backtrace;
		3277	};
		3278	} else {
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] [suppressed]\n";
		3281	}
		3282	}
		3283
		3284	# load additional modules
		3285	use cf::pod;
2210		3286
2211	END { cf::emergency_save }	3287	END { cf::emergency_save }
2212		3288
2213	1	3289	1
2214		3290

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