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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.289 by root, Sat Jun 30 03:00:54 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	93
55	our $RANDOM_MAPS = cf::localdir . "/random";	94	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
57		100
58	binmode STDOUT;	101	binmode STDOUT;
59	binmode STDERR;	102	binmode STDERR;
60		103
61	# read virtual server time, if available	104	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
66	}	109	}
67		110
68	mkdir cf::localdir;	111	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		113
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
77		117
78	#############################################################################	118	#############################################################################
79		119
80	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
81		121
…		…
88	=item $cf::RUNTIME	128	=item $cf::RUNTIME
89		129
90	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
91	every server tick.	131	every server tick.
92		132
93	=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
94		136
95	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		141
98	=item $cf::NOW	142	=item $cf::NOW
99		143
100	The time of the last (current) server tick.	144	The time of the last (current) server tick.
101		145
102	=item $cf::TICK	146	=item $cf::TICK
103		147
104	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.
105		159
106	=item %cf::CFG	160	=item %cf::CFG
107		161
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		170
111	=back	171	=back
112		172
113	=cut	173	=cut
114		174
115	BEGIN {	175	BEGIN {
116	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	177	my $msg = join "", @_;
118	utf8::encode $msg;
119		178
120	$msg .= "\n"	179	$msg .= "\n"
121	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
122		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
124	};	186	};
125	}	187	}
126		188
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		196
134	# 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
135	# within the Safe compartment.	198	# within the Safe compartment.
136	for my $pkg (qw(	199	for my $pkg (qw(
137	cf::global cf::attachable	200	cf::global cf::attachable
…		…
146		209
147	$Event::DIED = sub {	210	$Event::DIED = sub {
148	warn "error in event callback: @_";	211	warn "error in event callback: @_";
149	};	212	};
150		213
151	my %ext_pkg;	214	#############################################################################
152	my @exts;
153	my @hook;
154		215
155	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
156		217
157	=over 4	218	=over 4
158		219
159	=cut	220	=item dumpval $ref
160		221
161	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	}
162		242
163	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
164		244
165	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
166		246
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
175		248
176	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
177		250
178	=cut	251	=cut
179		252
180	sub to_json($) {	253	our $json_coder = JSON::XS->new->convert_blessed->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		254
185	=item my $guard = cf::guard { BLOCK }	255	sub to_json ($) { $json_coder->encode ($_[0]) }
186		256	sub from_json ($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		257
207	=item cf::lock_wait $string	258	=item cf::lock_wait $string
208		259
209	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
210		261
211	=item my $lock = cf::lock_acquire $string	262	=item my $lock = cf::lock_acquire $string
212		263
213	Wait until the given lock is available and then acquires it and returns	264	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	265	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	266	for example when the coroutine gets canceled), the lock is automatically
216	returned.	267	returned.
217		268
218	Lock names should begin with a unique identifier (for example, find_map	269	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
220		275
221	=cut	276	=cut
222		277
223	our %LOCK;	278	our %LOCK;
224		279
…		…
238	# wait, to be sure we are not locked	293	# wait, to be sure we are not locked
239	lock_wait $key;	294	lock_wait $key;
240		295
241	$LOCK{$key} = [];	296	$LOCK{$key} = [];
242		297
243	cf::guard {	298	Coro::guard {
244	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
246	}	301	}
247	}	302	}
248		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
		310	sub freeze_mainloop {
		311	return unless $TICK_WATCHER->is_active;
		312
		313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
		316	$TICK_WATCHER->stop;
		317	$guard
		318	}
		319
249	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
250		321
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	322	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
253		325
254	=cut	326	=cut
255		327
256	sub async(&) {	328	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		329
265	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
266		331
267	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
270		336
271	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
274	fast or be very important.	340	fast or be very important.
…		…
277		343
278	sub sync_job(&) {	344	sub sync_job(&) {
279	my ($job) = @_;	345	my ($job) = @_;
280		346
281	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
282	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
284		352
285	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	354	# (but this is cancel-safe)
287	local $FREEZE = 1;	355	my $freeze_guard = freeze_mainloop;
288		356
289	my $busy = 1;	357	my $busy = 1;
290	my @res;	358	my @res;
291		359
292	(Coro::async {	360	(async {
293	@res = eval { $job->() };	361	@res = eval { $job->() };
294	warn $@ if $@;	362	warn $@ if $@;
295	undef $busy;	363	undef $busy;
296	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
297		365
298	while ($busy) {	366	while ($busy) {
299	Coro::cede_notself;	367	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	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
302		376
303	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
304	} else {	378	} else {
305	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
306		380
307	$job->()	381	$job->()
308	}	382	}
309	}	383	}
310		384
311	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
312		386
313	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
315		389
316	=cut	390	=cut
317		391
318	sub coro(&) {	392	sub async_ext(&) {
319	my $cb = shift;	393	my $cb = shift;
320		394
321	my $coro = &cf::async ($cb);	395	my $coro = &Coro::async ($cb);
322		396
323	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
325	});	399	});
326	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
327		401
328	$coro	402	$coro
329	}	403	}
330		404
331	sub write_runtime {	405	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		406
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
335	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.
336		411
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		413
341	aio_fsync $fh	414	sub fork_call(&@) {
342	and return;	415	my ($cb, @args) = @_;
343		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) {
344	close $fh	423	close $fh2;
345	or return;
346		424
347	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
348	and return;	426	$res = Coro::Storable::thaw $res;
349		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
350	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	574	}
352		575
353	=back	576	=back
354		577
355	=cut	578	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		579
477	#############################################################################	580	#############################################################################
478		581
479	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
480		583
…		…
482	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
484		587
485	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	590	Crossfire TRT).
488		591
489	=over 4	592	=over 4
490		593
491	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
492		595
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	710	our @CB_MAP = ();
608		711
609	my %attachment;	712	my %attachment;
610		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
611	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
613		722
614	use sort 'stable';	723	use sort 'stable';
615		724
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
650		759
651	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		764
656	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	766	my $pkg = shift @arg;
658		767
659	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
689	}	798	}
690		799
691	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
692	} else {	801	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	803	}
695		804
696	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
697	}	806	}
698		807
…		…
700	if (ref $_[0]) {	809	if (ref $_[0]) {
701	_object_attach @_;	810	_object_attach @_;
702	} else {	811	} else {
703	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
704	}	813	}
		814	_recalc_want;
705	};	815	};
706		816
707	# all those should be optimised	817	# all those should be optimised
708	sub cf::attachable::detach {	818	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
713	reattach ($obj);	823	reattach ($obj);
714	} else {	824	} else {
715	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
716	}	826	}
		827	_recalc_want;
717	};	828	};
718		829
719	sub cf::attachable::attached {	830	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
721		832
…		…
786	# object support	897	# object support
787		898
788	sub reattach {	899	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		904
792	my $registry = $obj->registry;	905	my $registry = $obj->registry;
793		906
794	@$registry = ();	907	@$registry = ();
795		908
…		…
842	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
843		956
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	961	close $fh;
849		962
850	if (@$objs) {	963	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	969	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
858	}	971	}
859	} else {	972	} else {
860	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
892	or return;	1005	or return;
893	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
894	}	1007	}
895		1008
896	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
898	return ($data, $av);	1011	return ($data, $av);
899	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
900		1019
901	#############################################################################	1020	#############################################################################
902	# command handling &c	1021	# command handling &c
903		1022
904	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1037	}
919		1038
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1040
922	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
923		1046
924	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
925	called.	1048	called.
926		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
927	=cut	1061	=cut
928		1062
929	sub register_extcmd {	1063	sub register_extcmd {
930	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
931		1065
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
936	}	1073	}
937		1074
938	cf::player->attach (	1075	cf::player->attach (
939	on_command => sub {	1076	on_command => sub {
940	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
953		1090
954	my $msg = eval { from_json $buf };	1091	my $msg = eval { from_json $buf };
955		1092
956	if (ref $msg) {	1093	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	1097	}
961	}	1098	}
962	} else {	1099	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		1102
966	cf::override;	1103	cf::override;
967	},	1104	},
968	);	1105	);
969		1106
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s/H<([^\>]*)>/<fg name="lightblue">[$1]<\/fg>/g;
		1406
		1407	# create single paragraphs (very hackish)
		1408	s/(?<=\S)\n(?=\w)/ /g;
		1409
		1410	$_
		1411	}
		1412
		1413	=item $player->ext_reply ($msgid, %msg)
		1414
		1415	Sends an ext reply to the player.
		1416
		1417	=cut
		1418
		1419	sub ext_reply($$%) {
		1420	my ($self, $id, %msg) = @_;
		1421
		1422	$msg{msgid} = $id;
		1423	$self->send ("ext " . cf::to_json \%msg);
		1424	}
		1425
		1426	=item $player->ext_event ($type, %msg)
		1427
		1428	Sends an ext event to the client.
		1429
		1430	=cut
		1431
		1432	sub ext_event($$%) {
		1433	my ($self, $type, %msg) = @_;
		1434
		1435	$self->ns->ext_event ($type, %msg);
		1436	}
		1437
		1438	=head3 cf::region
		1439
		1440	=over 4
		1441
		1442	=cut
		1443
		1444	package cf::region;
		1445
		1446	=item cf::region::find_by_path $path
		1447
		1448	Tries to decuce the likely region for a map knowing only its path.
		1449
		1450	=cut
		1451
		1452	sub find_by_path($) {
977	my ($path) = @_;	1453	my ($path) = @_;
978		1454
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1455	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1456
985	warn "loading '$path' into '$pkg'\n";	1457	for my $region (list) {
986		1458	if ($region->match && $path =~ $region->match) {
987	open my $fh, "<:utf8", $path	1459	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1460	if $region->specificity > $specificity;
989		1461	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1462	}
1019		1463
1020	# remove commands	1464	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1465	}
1126		1466
1127	=back	1467	=back
1128
1129		1468
1130	=head3 cf::map	1469	=head3 cf::map
1131		1470
1132	=over 4	1471	=over 4
1133		1472
…		…
1136	package cf::map;	1475	package cf::map;
1137		1476
1138	use Fcntl;	1477	use Fcntl;
1139	use Coro::AIO;	1478	use Coro::AIO;
1140		1479
		1480	use overload
		1481	'""' => \&as_string,
		1482	fallback => 1;
		1483
1141	our $MAX_RESET = 7200;	1484	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1485	our $DEFAULT_RESET = 3000;
1143		1486
1144	sub generate_random_map {	1487	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1488	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1489	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1490	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1491	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1492	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1493	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1494	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1495	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1496	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1497	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1498	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1499	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1500	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1501	(cf::region::find $rmp->{region}), $rmp->{custom}
		1502	)
		1503	}
		1504
		1505	=item cf::map->register ($regex, $prio)
		1506
		1507	Register a handler for the map path matching the given regex at the
		1508	givne priority (higher is better, built-in handlers have priority 0, the
		1509	default).
		1510
		1511	=cut
		1512
		1513	sub register {
		1514	my (undef, $regex, $prio) = @_;
		1515	my $pkg = caller;
		1516
		1517	no strict;
		1518	push @{"$pkg\::ISA"}, __PACKAGE__;
		1519
		1520	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1521	}
		1522
		1523	# also paths starting with '/'
		1524	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1525
		1526	sub thawer_merge {
		1527	my ($self, $merge) = @_;
		1528
		1529	# we have to keep some variables in memory intact
		1530	local $self->{path};
		1531	local $self->{load_path};
		1532
		1533	$self->SUPER::thawer_merge ($merge);
		1534	}
		1535
		1536	sub normalise {
		1537	my ($path, $base) = @_;
		1538
		1539	$path = "$path"; # make sure its a string
		1540
		1541	$path =~ s/\.map$//;
		1542
		1543	# map plan:
		1544	#
		1545	# /! non-realised random map exit (special hack!)
		1546	# {... are special paths that are not being touched
		1547	# ?xxx/... are special absolute paths
		1548	# ?random/... random maps
		1549	# /... normal maps
		1550	# ~user/... per-player map of a specific user
		1551
		1552	$path =~ s/$PATH_SEP/\//go;
		1553
		1554	# treat it as relative path if it starts with
		1555	# something that looks reasonable
		1556	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1557	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1558
		1559	$base =~ s{[^/]+/?$}{};
		1560	$path = "$base/$path";
		1561	}
		1562
		1563	for ($path) {
		1564	redo if s{//}{/};
		1565	redo if s{/\.?/}{/};
		1566	redo if s{/[^/]+/\.\./}{/};
		1567	}
		1568
		1569	$path
		1570	}
		1571
		1572	sub new_from_path {
		1573	my (undef, $path, $base) = @_;
		1574
		1575	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1576
		1577	$path = normalise $path, $base;
		1578
		1579	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1580	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1581	my $self = bless cf::map::new, $pkg;
		1582	$self->{path} = $path; $self->path ($path);
		1583	$self->init; # pass $1 etc.
		1584	return $self;
		1585	}
		1586	}
		1587
		1588	Carp::carp "unable to resolve path '$path' (base '$base').";
		1589	()
		1590	}
		1591
		1592	sub init {
		1593	my ($self) = @_;
		1594
		1595	$self
		1596	}
		1597
		1598	sub as_string {
		1599	my ($self) = @_;
		1600
		1601	"$self->{path}"
		1602	}
		1603
		1604	# the displayed name, this is a one way mapping
		1605	sub visible_name {
		1606	&as_string
		1607	}
		1608
		1609	# the original (read-only) location
		1610	sub load_path {
		1611	my ($self) = @_;
		1612
		1613	"$MAPDIR/$self->{path}.map"
		1614	}
		1615
		1616	# the temporary/swap location
		1617	sub save_path {
		1618	my ($self) = @_;
		1619
		1620	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1621	"$TMPDIR/$path.map"
		1622	}
		1623
		1624	# the unique path, undef == no special unique path
		1625	sub uniq_path {
		1626	my ($self) = @_;
		1627
		1628	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1629	"$UNIQUEDIR/$path"
1161	}	1630	}
1162		1631
1163	# and all this just because we cannot iterate over	1632	# and all this just because we cannot iterate over
1164	# all maps in C++...	1633	# all maps in C++...
1165	sub change_all_map_light {	1634	sub change_all_map_light {
…		…
1167		1636
1168	$_->change_map_light ($change)	1637	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1638	for grep $_->outdoor, values %cf::MAP;
1170	}	1639	}
1171		1640
		1641	sub decay_objects {
		1642	my ($self) = @_;
		1643
		1644	return if $self->{deny_reset};
		1645
		1646	$self->do_decay_objects;
		1647	}
		1648
		1649	sub unlink_save {
		1650	my ($self) = @_;
		1651
		1652	utf8::encode (my $save = $self->save_path);
		1653	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1654	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1655	}
		1656
1172	sub try_load_header($) {	1657	sub load_header_from($) {
1173	my ($path) = @_;	1658	my ($self, $path) = @_;
1174		1659
1175	utf8::encode $path;	1660	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1661	#aio_open $path, O_RDONLY, 0
		1662	# or return;
		1663
		1664	$self->_load_header ($path)
1177	or return;	1665	or return;
1178		1666
1179	my $map = cf::map::new	1667	$self->{load_path} = $path;
		1668
		1669	1
		1670	}
		1671
		1672	sub load_header_orig {
		1673	my ($self) = @_;
		1674
		1675	$self->load_header_from ($self->load_path)
		1676	}
		1677
		1678	sub load_header_temp {
		1679	my ($self) = @_;
		1680
		1681	$self->load_header_from ($self->save_path)
		1682	}
		1683
		1684	sub prepare_temp {
		1685	my ($self) = @_;
		1686
		1687	$self->last_access ((delete $self->{last_access})
		1688	|| $cf::RUNTIME); #d#
		1689	# safety
		1690	$self->{instantiate_time} = $cf::RUNTIME
		1691	if $self->{instantiate_time} > $cf::RUNTIME;
		1692	}
		1693
		1694	sub prepare_orig {
		1695	my ($self) = @_;
		1696
		1697	$self->{load_original} = 1;
		1698	$self->{instantiate_time} = $cf::RUNTIME;
		1699	$self->last_access ($cf::RUNTIME);
		1700	$self->instantiate;
		1701	}
		1702
		1703	sub load_header {
		1704	my ($self) = @_;
		1705
		1706	if ($self->load_header_temp) {
		1707	$self->prepare_temp;
		1708	} else {
		1709	$self->load_header_orig
1180	or return;	1710	or return;
		1711	$self->prepare_orig;
		1712	}
1181		1713
1182	$map->load_header ($path)	1714	$self->{deny_reset} = 1
1183	or return;	1715	if $self->no_reset;
1184		1716
1185	$map->{load_path} = $path;	1717	$self->default_region (cf::region::find_by_path $self->{path})
		1718	unless $self->default_region;
1186		1719
1187	$map	1720	1
1188	}	1721	}
1189		1722
1190	sub find_map;	1723	sub find;
1191	sub find_map {	1724	sub find {
1192	my ($path, $origin) = @_;	1725	my ($path, $origin) = @_;
1193		1726
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1727	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1728
1199	cf::lock_wait "map_find:$key";	1729	cf::lock_wait "map_find:$path";
1200		1730
1201	$cf::MAP{$key} || do {	1731	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1732	my $guard = cf::lock_acquire "map_find:$path";
1203		1733	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1734	or return;
1221		1735
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1736	$map->{last_save} = $cf::RUNTIME;
1234		1737
1235	if ($map->should_reset) {	1738	$map->load_header
		1739	or return;
		1740
		1741	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1742	# doing this can freeze the server in a sync job, obviously
		1743	#$cf::WAIT_FOR_TICK->wait;
1236	$map->reset;	1744	$map->reset;
1237	undef $guard;	1745	undef $guard;
1238	$map = find_map $path	1746	return find $path;
1239	or return;
1240	}	1747	}
1241		1748
1242	$cf::MAP{$key} = $map	1749	$cf::MAP{$path} = $map
1243	}	1750	}
1244	}	1751	}
		1752
		1753	sub pre_load { }
		1754	sub post_load { }
1245		1755
1246	sub load {	1756	sub load {
1247	my ($self) = @_;	1757	my ($self) = @_;
1248		1758
		1759	local $self->{deny_reset} = 1; # loading can take a long time
		1760
1249	my $path = $self->{path};	1761	my $path = $self->{path};
		1762
		1763	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1764	my $guard = cf::lock_acquire "map_load:$path";
1251		1765
1252	return if $self->in_memory != cf::MAP_SWAPPED;	1766	return if $self->in_memory != cf::MAP_SWAPPED;
1253		1767
1254	$self->in_memory (cf::MAP_LOADING);	1768	$self->in_memory (cf::MAP_LOADING);
1255		1769
1256	$self->alloc;	1770	$self->alloc;
		1771
		1772	$self->pre_load;
		1773	Coro::cede;
		1774
1257	$self->load_objects ($self->{load_path}, 1)	1775	$self->_load_objects ($self->{load_path}, 1)
1258	or return;	1776	or return;
1259		1777
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1778	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261	if delete $self->{load_original};	1779	if delete $self->{load_original};
1262		1780
1263	if (my $uniq = $path->uniq_path) {	1781	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	1782	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	1783	if (aio_open $uniq, O_RDONLY, 0) {
1266	$self->clear_unique_items;	1784	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	1785	$self->_load_objects ($uniq, 0);
1268	}	1786	}
1269	}	1787	}
1270		1788
		1789	Coro::cede;
1271	# now do the right thing for maps	1790	# now do the right thing for maps
1272	$self->link_multipart_objects;	1791	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	1792	$self->difficulty ($self->estimate_difficulty)
1283	unless $self->difficulty;	1793	unless $self->difficulty;
		1794	Coro::cede;
		1795
		1796	unless ($self->{deny_activate}) {
		1797	$self->decay_objects;
		1798	$self->fix_auto_apply;
		1799	$self->update_buttons;
		1800	Coro::cede;
		1801	$self->set_darkness_map;
		1802	Coro::cede;
1284	$self->activate;	1803	$self->activate;
1285	}	1804	}
1286		1805
1287	$self->in_memory (cf::MAP_IN_MEMORY);	1806	$self->in_memory (cf::MAP_IN_MEMORY);
1288	}	1807	}
1289		1808
1290	sub load_map_sync {	1809	$self->post_load;
		1810	}
		1811
		1812	sub customise_for {
		1813	my ($self, $ob) = @_;
		1814
		1815	return find "~" . $ob->name . "/" . $self->{path}
		1816	if $self->per_player;
		1817
		1818	# return find "?party/" . $ob->name . "/" . $self->{path}
		1819	# if $self->per_party;
		1820
		1821	$self
		1822	}
		1823
		1824	# find and load all maps in the 3x3 area around a map
		1825	sub load_diag {
		1826	my ($map) = @_;
		1827
		1828	my @diag; # diagonal neighbours
		1829
		1830	for (0 .. 3) {
		1831	my $neigh = $map->tile_path ($_)
		1832	or next;
		1833	$neigh = find $neigh, $map
		1834	or next;
		1835	$neigh->load;
		1836
		1837	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1838	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1839	}
		1840
		1841	for (@diag) {
		1842	my $neigh = find @$_
		1843	or next;
		1844	$neigh->load;
		1845	}
		1846	}
		1847
		1848	sub find_sync {
1291	my ($path, $origin) = @_;	1849	my ($path, $origin) = @_;
1292		1850
1293	#warn "load_map_sync<$path, $origin>\n";#d#	1851	cf::sync_job { find $path, $origin }
		1852	}
1294		1853
1295	cf::sync_job {	1854	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	1855	my ($map) = @_;
1297	or return;	1856
		1857	cf::sync_job { $map->load };
		1858	}
		1859
		1860	our %MAP_PREFETCH;
		1861	our $MAP_PREFETCHER = undef;
		1862
		1863	sub find_async {
		1864	my ($path, $origin) = @_;
		1865
		1866	$path = normalise $path, $origin && $origin->{path};
		1867
		1868	if (my $map = $cf::MAP{$path}) {
		1869	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1870	}
		1871
		1872	undef $MAP_PREFETCH{$path};
		1873	$MAP_PREFETCHER ||= cf::async {
		1874	while (%MAP_PREFETCH) {
		1875	for my $path (keys %MAP_PREFETCH) {
		1876	my $map = find $path
		1877	or next;
1298	$map->load;	1878	$map->load;
1299	$map	1879
		1880	delete $MAP_PREFETCH{$path};
		1881	}
		1882	}
		1883	undef $MAP_PREFETCHER;
1300	}	1884	};
		1885	$MAP_PREFETCHER->prio (6);
		1886
		1887	()
1301	}	1888	}
1302		1889
1303	sub save {	1890	sub save {
1304	my ($self) = @_;	1891	my ($self) = @_;
1305		1892
		1893	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1894
1306	$self->{last_save} = $cf::RUNTIME;	1895	$self->{last_save} = $cf::RUNTIME;
1307		1896
1308	return unless $self->dirty;	1897	return unless $self->dirty;
1309		1898
1310	my $save = $self->{path}->save_path; utf8::encode $save;	1899	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1900	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		1901
1313	$self->{load_path} = $save;	1902	$self->{load_path} = $save;
1314		1903
1315	return if $self->{deny_save};	1904	return if $self->{deny_save};
1316		1905
1317	local $self->{last_access} = $self->last_access;#d#	1906	local $self->{last_access} = $self->last_access;#d#
1318		1907
		1908	cf::async {
		1909	$_->contr->save for $self->players;
		1910	};
		1911
1319	if ($uniq) {	1912	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1913	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	1914	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	1915	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1916	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	1917	}
1325	}	1918	}
1326		1919
1327	sub swap_out {	1920	sub swap_out {
1328	my ($self) = @_;	1921	my ($self) = @_;
1329		1922
1330	# save first because save cedes	1923	# save first because save cedes
1331	$self->save;	1924	$self->save;
		1925
		1926	my $lock = cf::lock_acquire "map_data:" . $self->path;
1332		1927
1333	return if $self->players;	1928	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	1929	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};	1930	return if $self->{deny_save};
1336		1931
…		…
1340		1935
1341	sub reset_at {	1936	sub reset_at {
1342	my ($self) = @_;	1937	my ($self) = @_;
1343		1938
1344	# TODO: safety, remove and allow resettable per-player maps	1939	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};
1346	return 1e99 if $self->{deny_reset};	1940	return 1e99 if $self->{deny_reset};
1347		1941
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1942	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1943	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		1944
…		…
1355	my ($self) = @_;	1949	my ($self) = @_;
1356		1950
1357	$self->reset_at <= $cf::RUNTIME	1951	$self->reset_at <= $cf::RUNTIME
1358	}	1952	}
1359		1953
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	1954	sub reset {
1382	my ($self) = @_;	1955	my ($self) = @_;
1383		1956
		1957	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1958
1384	return if $self->players;	1959	return if $self->players;
1385	return if $self->{path}{user_rel};#d#
1386		1960
1387	warn "resetting map ", $self->path;#d#	1961	warn "resetting map ", $self->path;
		1962
		1963	$self->in_memory (cf::MAP_SWAPPED);
		1964
		1965	# need to save uniques path
		1966	unless ($self->{deny_save}) {
		1967	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1968
		1969	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1970	if $uniq;
		1971	}
1388		1972
1389	delete $cf::MAP{$self->path};	1973	delete $cf::MAP{$self->path};
		1974
		1975	$self->clear;
1390		1976
1391	$_->clear_links_to ($self) for values %cf::MAP;	1977	$_->clear_links_to ($self) for values %cf::MAP;
1392		1978
1393	$self->unlink_save;	1979	$self->unlink_save;
1394	$self->destroy;	1980	$self->destroy;
…		…
1397	my $nuke_counter = "aaaa";	1983	my $nuke_counter = "aaaa";
1398		1984
1399	sub nuke {	1985	sub nuke {
1400	my ($self) = @_;	1986	my ($self) = @_;
1401		1987
		1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->unlink_save;
		1991
		1992	bless $self, "cf::map";
		1993	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	1994	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	1995	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	1996	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1997
		1998	$cf::MAP{$self->path} = $self;
		1999
1405	$self->reset; # polite request, might not happen	2000	$self->reset; # polite request, might not happen
1406	}	2001	}
1407		2002
1408	sub customise_for {	2003	=item $maps = cf::map::tmp_maps
1409	my ($map, $ob) = @_;
1410		2004
1411	if ($map->per_player) {	2005	Returns an arrayref with all map paths of currently instantiated and saved
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2006	maps. May block.
		2007
		2008	=cut
		2009
		2010	sub tmp_maps() {
1413	}	2011	[
1414		2012	map {
1415	$map	2013	utf8::decode $_;
		2014	/\.map$/
		2015	? normalise $_
		2016	: ()
		2017	} @{ aio_readdir $TMPDIR or [] }
		2018	]
1416	}	2019	}
1417		2020
1418	sub emergency_save {	2021	=item $maps = cf::map::random_maps
1419	local $cf::FREEZE = 1;
1420		2022
1421	warn "enter emergency map save\n";	2023	Returns an arrayref with all map paths of currently instantiated and saved
		2024	random maps. May block.
1422		2025
1423	cf::sync_job {	2026	=cut
1424	warn "begin emergency map save\n";
1425	$_->save for values %cf::MAP;
1426	};
1427		2027
1428	warn "end emergency map save\n";	2028	sub random_maps() {
		2029	[
		2030	map {
		2031	utf8::decode $_;
		2032	/\.map$/
		2033	? normalise "?random/$_"
		2034	: ()
		2035	} @{ aio_readdir $RANDOMDIR or [] }
		2036	]
		2037	}
		2038
		2039	=item cf::map::unique_maps
		2040
		2041	Returns an arrayref of paths of all shared maps that have
		2042	instantiated unique items. May block.
		2043
		2044	=cut
		2045
		2046	sub unique_maps() {
		2047	[
		2048	map {
		2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $UNIQUEDIR or [] }
		2054	]
1429	}	2055	}
1430		2056
1431	package cf;	2057	package cf;
1432		2058
1433	=back	2059	=back
1434		2060
		2061	=head3 cf::object
		2062
		2063	=cut
		2064
		2065	package cf::object;
		2066
		2067	=over 4
		2068
		2069	=item $ob->inv_recursive
		2070
		2071	Returns the inventory of the object _and_ their inventories, recursively.
		2072
		2073	=cut
		2074
		2075	sub inv_recursive_;
		2076	sub inv_recursive_ {
		2077	map { $_, inv_recursive_ $_->inv } @_
		2078	}
		2079
		2080	sub inv_recursive {
		2081	inv_recursive_ inv $_[0]
		2082	}
		2083
		2084	package cf;
		2085
		2086	=back
1435		2087
1436	=head3 cf::object::player	2088	=head3 cf::object::player
1437		2089
1438	=over 4	2090	=over 4
1439		2091
…		…
1453		2105
1454	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2106	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1455		2107
1456	if ($self->{record_replies}) {	2108	if ($self->{record_replies}) {
1457	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2109	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2110
1458	} else {	2111	} else {
		2112	my $pl = $self->contr;
		2113
		2114	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2115	my $diag = $pl->{npc_dialog};
		2116	$diag->{pl}->ext_reply (
		2117	$diag->{id},
		2118	msgtype => "reply",
		2119	msg => $diag->{pl}->expand_cfpod ($msg),
		2120	add_topics => []
		2121	);
		2122
		2123	} else {
1459	$msg = $npc->name . " says: $msg" if $npc;	2124	$msg = $npc->name . " says: $msg" if $npc;
1460	$self->message ($msg, $flags);	2125	$self->message ($msg, $flags);
		2126	}
1461	}	2127	}
1462	}	2128	}
1463		2129
1464	=item $player_object->may ("access")	2130	=item $player_object->may ("access")
1465		2131
…		…
1479		2145
1480	=item $player_object->enter_link	2146	=item $player_object->enter_link
1481		2147
1482	Freezes the player and moves him/her to a special map (C<{link}>).	2148	Freezes the player and moves him/her to a special map (C<{link}>).
1483		2149
1484	The player should be reaosnably safe there for short amounts of time. You	2150	The player should be reasonably safe there for short amounts of time. You
1485	I<MUST> call C<leave_link> as soon as possible, though.	2151	I<MUST> call C<leave_link> as soon as possible, though.
1486		2152
		2153	Will never block.
		2154
1487	=item $player_object->leave_link ($map, $x, $y)	2155	=item $player_object->leave_link ($map, $x, $y)
1488		2156
1489	Moves the player out of the specila link map onto the given map. If the	2157	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	2158	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	2159	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	2160	fails, to the emergency map position.
1493		2161
1494	Might block.	2162	Might block.
1495		2163
1496	=cut	2164	=cut
		2165
		2166	sub link_map {
		2167	unless ($LINK_MAP) {
		2168	$LINK_MAP = cf::map::find "{link}"
		2169	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2170	$LINK_MAP->load;
		2171	}
		2172
		2173	$LINK_MAP
		2174	}
1497		2175
1498	sub cf::object::player::enter_link {	2176	sub cf::object::player::enter_link {
1499	my ($self) = @_;	2177	my ($self) = @_;
1500		2178
1501	$self->deactivate_recursive;	2179	$self->deactivate_recursive;
1502		2180
1503	return if $self->map == $LINK_MAP;	2181	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		2182
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2183	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	2184	if $self->map && $self->map->{path} ne "{link}";
1507		2185
1508	$self->enter_map ($LINK_MAP, 20, 20);	2186	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1509	}	2187	}
1510		2188
1511	sub cf::object::player::leave_link {	2189	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	2190	my ($self, $map, $x, $y) = @_;
		2191
		2192	return unless $self->contr->active;
1513		2193
1514	my $link_pos = delete $self->{_link_pos};	2194	my $link_pos = delete $self->{_link_pos};
1515		2195
1516	unless ($map) {	2196	unless ($map) {
1517	# restore original map position	2197	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	2198	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	2199	$map = cf::map::find $map;
1520		2200
1521	unless ($map) {	2201	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	2202	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	2203	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	2204	or die "FATAL: cannot load emergency map\n";
1525	}	2205	}
1526	}	2206	}
1527		2207
1528	($x, $y) = (-1, -1)	2208	($x, $y) = (-1, -1)
…		…
1531	# use -1 or undef as default coordinates, not 0, 0	2211	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	2212	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	2213	if $x <=0 && $y <= 0;
1534		2214
1535	$map->load;	2215	$map->load;
		2216	$map->load_diag;
1536		2217
		2218	return unless $self->contr->active;
1537	$self->activate_recursive;	2219	$self->activate_recursive;
		2220
		2221	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1538	$self->enter_map ($map, $x, $y);	2222	$self->enter_map ($map, $x, $y);
1539	}	2223	}
1540		2224
1541	cf::player->attach (
1542	on_logout => sub {
1543	my ($pl) = @_;
1544
1545	# abort map switching before logout
1546	if ($pl->ob->{_link_pos}) {
1547	cf::sync_job {
1548	$pl->ob->leave_link
1549	};
1550	}
1551	},
1552	on_login => sub {
1553	my ($pl) = @_;
1554
1555	# try to abort aborted map switching on player login :)
1556	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;
1559	cf::async {
1560	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;
1564	};
1565	}
1566	},
1567	);
1568
1569	=item $player_object->goto_map ($path, $x, $y)	2225	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1570		2226
1571	=cut	2227	Moves the player to the given map-path and coordinates by first freezing
		2228	her, loading and preparing them map, calling the provided $check callback
		2229	that has to return the map if sucecssful, and then unfreezes the player on
		2230	the new (success) or old (failed) map position.
1572		2231
		2232	=cut
		2233
		2234	our $GOTOGEN;
		2235
1573	sub cf::object::player::goto_map {	2236	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	2237	my ($self, $path, $x, $y, $check) = @_;
		2238
		2239	# do generation counting so two concurrent goto's will be executed in-order
		2240	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1575		2241
1576	$self->enter_link;	2242	$self->enter_link;
1577		2243
1578	(cf::async {	2244	(async {
1579	$path = new cf::path $path;	2245	my $map = eval {
1580
1581	my $map = cf::map::find_map $path->as_string;	2246	my $map = cf::map::find $path;
		2247
		2248	if ($map) {
1582	$map = $map->customise_for ($self) if $map;	2249	$map = $map->customise_for ($self);
1583		2250	$map = $check->($map) if $check && $map;
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	2251	} else {
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2252	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2253	}
1588		2254
		2255	$map
		2256	};
		2257
		2258	if ($@) {
		2259	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2260	LOG llevError | logBacktrace, Carp::longmess $@;
		2261	}
		2262
		2263	if ($gen == $self->{_goto_generation}) {
		2264	delete $self->{_goto_generation};
1589	$self->leave_link ($map, $x, $y);	2265	$self->leave_link ($map, $x, $y);
		2266	}
1590	})->prio (1);	2267	})->prio (1);
1591	}	2268	}
1592		2269
1593	=item $player_object->enter_exit ($exit_object)	2270	=item $player_object->enter_exit ($exit_object)
1594		2271
…		…
1596		2273
1597	sub parse_random_map_params {	2274	sub parse_random_map_params {
1598	my ($spec) = @_;	2275	my ($spec) = @_;
1599		2276
1600	my $rmp = { # defaults	2277	my $rmp = { # defaults
1601	xsize => 10,	2278	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	2279	ysize => (cf::rndm 15, 40),
		2280	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2281	#layout => string,
1603	};	2282	};
1604		2283
1605	for (split /\n/, $spec) {	2284	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	2285	my ($k, $v) = split /\s+/, $_, 2;
1607		2286
…		…
1611	$rmp	2290	$rmp
1612	}	2291	}
1613		2292
1614	sub prepare_random_map {	2293	sub prepare_random_map {
1615	my ($exit) = @_;	2294	my ($exit) = @_;
		2295
		2296	my $guard = cf::lock_acquire "exit_prepare:$exit";
1616		2297
1617	# all this does is basically replace the /! path by	2298	# all this does is basically replace the /! path by
1618	# a new random map path (?random/...) with a seed	2299	# a new random map path (?random/...) with a seed
1619	# that depends on the exit object	2300	# that depends on the exit object
1620		2301
1621	my $rmp = parse_random_map_params $exit->msg;	2302	my $rmp = parse_random_map_params $exit->msg;
1622		2303
1623	if ($exit->map) {	2304	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	2305	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2306	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2307	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2308	$rmp->{origin_y} = $exit->y;
1628	}	2309	}
1629		2310
1630	$rmp->{random_seed} ||= $exit->random_seed;	2311	$rmp->{random_seed} ||= $exit->random_seed;
1631		2312
1632	my $data = cf::to_json $rmp;	2313	my $data = cf::to_json $rmp;
1633	my $md5 = Digest::MD5::md5_hex $data;	2314	my $md5 = Digest::MD5::md5_hex $data;
		2315	my $meta = "$RANDOMDIR/$md5.meta";
1634		2316
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2317	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	2318	aio_write $fh, 0, (length $data), $data, 0;
		2319	undef $fh;
		2320	aio_rename "$meta~", $meta;
1637		2321
1638	$exit->slaying ("?random/$md5");	2322	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2323	$exit->msg (undef);
1640	}	2324	}
1641	}	2325	}
…		…
1643	sub cf::object::player::enter_exit {	2327	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2328	my ($self, $exit) = @_;
1645		2329
1646	return unless $self->type == cf::PLAYER;	2330	return unless $self->type == cf::PLAYER;
1647		2331
		2332	if ($exit->slaying eq "/!") {
		2333	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2334	# the problem is that $exit might not survive long enough
		2335	# so it needs to be done right now, right here
		2336	cf::sync_job { prepare_random_map $exit };
		2337	}
		2338
		2339	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2340	my $hp = $exit->stats->hp;
		2341	my $sp = $exit->stats->sp;
		2342
1648	$self->enter_link;	2343	$self->enter_link;
1649		2344
1650	(cf::async {	2345	(async {
		2346	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2347	unless (eval {
1652	prepare_random_map $exit	2348	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1657		2349
1658	1;	2350	1;
1659	}) {	2351	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2352	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2353	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2354	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2355	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2356
1665	warn "ERROR in enter_exit: $@";	2357	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2358	$self->leave_link;
1667	}	2359	}
1668	})->prio (1);	2360	})->prio (1);
…		…
1681		2373
1682	sub cf::client::send_drawinfo {	2374	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2375	my ($self, $text, $flags) = @_;
1684		2376
1685	utf8::encode $text;	2377	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2378	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2379	}
1688		2380
		2381	=item $client->send_msg ($color, $type, $msg, [extra...])
		2382
		2383	Send a drawinfo or msg packet to the client, formatting the msg for the
		2384	client if neccessary. C<$type> should be a string identifying the type of
		2385	the message, with C<log> being the default. If C<$color> is negative, suppress
		2386	the message unless the client supports the msg packet.
		2387
		2388	=cut
		2389
		2390	sub cf::client::send_msg {
		2391	my ($self, $color, $type, $msg, @extra) = @_;
		2392
		2393	$msg = $self->pl->expand_cfpod ($msg);
		2394
		2395	if ($self->can_msg) {
		2396	$self->send_packet ("msg " . cf::to_json [$color, $type, $msg, @extra]);
		2397	} else {
		2398	# replace some tags by gcfclient-compatible ones
		2399	for ($msg) {
		2400	1 while
		2401	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2402	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2403	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2404	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2405	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2406	}
		2407
		2408	if ($color >= 0) {
		2409	if (0 && $msg =~ /\[/) {
		2410	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2411	} else {
		2412	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2413	$self->send_packet ("drawinfo $color $msg")
		2414	}
		2415	}
		2416	}
		2417	}
		2418
		2419	=item $client->ext_event ($type, %msg)
		2420
		2421	Sends an ext event to the client.
		2422
		2423	=cut
		2424
		2425	sub cf::client::ext_event($$%) {
		2426	my ($self, $type, %msg) = @_;
		2427
		2428	$msg{msgtype} = "event_$type";
		2429	$self->send_packet ("ext " . cf::to_json \%msg);
		2430	}
1689		2431
1690	=item $success = $client->query ($flags, "text", \&cb)	2432	=item $success = $client->query ($flags, "text", \&cb)
1691		2433
1692	Queues a query to the client, calling the given callback with	2434	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2435	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2436	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		2437
1696	Queries can fail, so check the return code. Or don't, as queries will become	2438	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	2439	become reliable at some point in the future.
1698		2440
1699	=cut	2441	=cut
1700		2442
1701	sub cf::client::query {	2443	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2444	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2452	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2453	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2454
1713	$self->send_packet ($self->{query_queue}[0][0])	2455	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2456	if @{ $self->{query_queue} } == 1;
		2457
		2458	1
1715	}	2459	}
1716		2460
1717	cf::client->attach (	2461	cf::client->attach (
1718	on_reply => sub {	2462	on_reply => sub {
1719	my ($ns, $msg) = @_;	2463	my ($ns, $msg) = @_;
…		…
1722	# get handled first	2466	# get handled first
1723	my $queue = delete $ns->{query_queue}	2467	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2468	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2469
1726	(shift @$queue)->[1]->($msg);	2470	(shift @$queue)->[1]->($msg);
		2471	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2472
1728	push @{ $ns->{query_queue} }, @$queue;	2473	push @{ $ns->{query_queue} }, @$queue;
1729		2474
1730	if (@{ $ns->{query_queue} } == @$queue) {	2475	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2476	if (@$queue) {
…		…
1733	} else {	2478	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2479	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	2480	}
1736	}	2481	}
1737	},	2482	},
		2483	on_exticmd => sub {
		2484	my ($ns, $buf) = @_;
		2485
		2486	my $msg = eval { from_json $buf };
		2487
		2488	if (ref $msg) {
		2489	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2490	if (my %reply = $cb->($ns, $msg)) {
		2491	$reply{msgid} = $msg->{msgid};
		2492	$ns->send ("ext " . cf::to_json \%reply);
		2493	}
		2494	}
		2495	} else {
		2496	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2497	}
		2498
		2499	cf::override;
		2500	},
1738	);	2501	);
1739		2502
1740	=item $client->coro (\&cb)	2503	=item $client->async (\&cb)
1741		2504
1742	Create a new coroutine, running the specified callback. The coroutine will	2505	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	2506	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	2507	or loss of connection).
1745		2508
1746	=cut	2509	=cut
1747		2510
1748	sub cf::client::coro {	2511	sub cf::client::async {
1749	my ($self, $cb) = @_;	2512	my ($self, $cb) = @_;
1750		2513
1751	my $coro = &cf::async ($cb);	2514	my $coro = &Coro::async ($cb);
1752		2515
1753	$coro->on_destroy (sub {	2516	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	2517	delete $self->{_coro}{$coro+0};
1755	});	2518	});
1756		2519
…		…
1789		2552
1790	# here we export the classes and methods available to script code	2553	# here we export the classes and methods available to script code
1791		2554
1792	=pod	2555	=pod
1793		2556
1794	The following fucntions and emthods are available within a safe environment:	2557	The following functions and methods are available within a safe environment:
1795		2558
1796	cf::object contr pay_amount pay_player map	2559	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2560	cf::object::player player
1798	cf::player peaceful	2561	cf::player peaceful
1799	cf::map trigger	2562	cf::map trigger
…		…
1880	=back	2643	=back
1881		2644
1882	=cut	2645	=cut
1883		2646
1884	#############################################################################	2647	#############################################################################
		2648	# the server's init and main functions
1885		2649
1886	=head2 EXTENSION DATABASE SUPPORT	2650	sub load_facedata($) {
		2651	my ($path) = @_;
1887		2652
1888	Crossfire maintains a very simple database for extension use. It can	2653	warn "loading facedata from $path\n";
1889	currently store anything that can be serialised using Storable, which
1890	excludes objects.
1891		2654
1892	The parameter C<$family> should best start with the name of the extension	2655	my $facedata;
1893	using it, it should be unique.	2656	0 < aio_load $path, $facedata
		2657	or die "$path: $!";
1894		2658
1895	=over 4	2659	$facedata = Coro::Storable::thaw $facedata;
1896		2660
1897	=item $hashref = cf::db_get $family	2661	$facedata->{version} == 2
		2662	or cf::cleanup "$path: version mismatch, cannot proceed.";
1898		2663
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key
1904
1905	Returns a single value from the database
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}	2664	{
		2665	my $faces = $facedata->{faceinfo};
1935		2666
1936	my $pid;	2667	while (my ($face, $info) = each %$faces) {
1937		2668	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1938	sub db_save() {	2669	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1939	waitpid $pid, 0 if $pid;	2670	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1940	if (0 == ($pid = fork)) {	2671	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1941	$DB->{_meta}{version} = 1;	2672	Coro::cede;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});
1958
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {
1965	@_ >= 2
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969
1970	sub db_put($$;$) {
1971	if (@_ >= 3) {
1972	$DB->{$_[0]}{$_[1]} = $_[2];
1973	} else {
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978
1979	cf::global->attach (
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	2673	}
1984	);
1985	}
1986		2674
1987	#############################################################################	2675	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	2676	next unless $info->{smooth};
		2677	my $idx = cf::face::find $face
		2678	or next;
		2679	if (my $smooth = cf::face::find $info->{smooth}) {
		2680	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2681	} else {
		2682	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2683	}
		2684	Coro::cede;
		2685	}
		2686	}
		2687
		2688	{
		2689	my $anims = $facedata->{animinfo};
		2690
		2691	while (my ($anim, $info) = each %$anims) {
		2692	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2693	Coro::cede;
		2694	}
		2695
		2696	cf::anim::invalidate_all; # d'oh
		2697	}
		2698
		2699	1
		2700	}
		2701
		2702	sub reload_regions {
		2703	load_resource_file "$MAPDIR/regions"
		2704	or die "unable to load regions file\n";
		2705	}
		2706
		2707	sub reload_facedata {
		2708	load_facedata "$DATADIR/facedata"
		2709	or die "unable to load facedata\n";
		2710	}
		2711
		2712	sub reload_archetypes {
		2713	load_resource_file "$DATADIR/archetypes"
		2714	or die "unable to load archetypes\n";
		2715	#d# NEED to laod twice to resolve forward references
		2716	# this really needs to be done in an extra post-pass
		2717	# (which needs to be synchronous, so solve it differently)
		2718	load_resource_file "$DATADIR/archetypes"
		2719	or die "unable to load archetypes\n";
		2720	}
		2721
		2722	sub reload_treasures {
		2723	load_resource_file "$DATADIR/treasures"
		2724	or die "unable to load treasurelists\n";
		2725	}
		2726
		2727	sub reload_resources {
		2728	warn "reloading resource files...\n";
		2729
		2730	reload_regions;
		2731	reload_facedata;
		2732	#reload_archetypes;#d#
		2733	reload_archetypes;
		2734	reload_treasures;
		2735
		2736	warn "finished reloading resource files\n";
		2737	}
		2738
		2739	sub init {
		2740	reload_resources;
		2741	}
1989		2742
1990	sub cfg_load {	2743	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2744	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2745	or return;
1993		2746
1994	local $/;	2747	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2748	*CFG = YAML::Syck::Load <$fh>;
1996		2749
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2750	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		2751
		2752	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2753	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2754
1999	if (exists $CFG{mlockall}) {	2755	if (exists $CFG{mlockall}) {
2000	eval {	2756	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	2757	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	2758	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	2759	};
2004	warn $@ if $@;	2760	warn $@ if $@;
2005	}	2761	}
2006	}	2762	}
2007		2763
2008	sub main {	2764	sub main {
2009	# we must not ever block the main coroutine	2765	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	2766	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2767	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	2768	(async {
2013	Event::one_event;	2769	Event::one_event;
2014	})->();	2770	})->prio (Coro::PRIO_MAX);
2015	};	2771	};
2016		2772
2017	cfg_load;	2773	cfg_load;
2018	db_load;	2774	db_init;
2019	load_extensions;	2775	load_extensions;
		2776
		2777	$TICK_WATCHER->start;
2020	Event::loop;	2778	Event::loop;
2021	}	2779	}
2022		2780
2023	#############################################################################	2781	#############################################################################
2024	# initialisation	2782	# initialisation and cleanup
2025		2783
		2784	# install some emergency cleanup handlers
		2785	BEGIN {
		2786	for my $signal (qw(INT HUP TERM)) {
		2787	Event->signal (
		2788	reentrant => 0,
		2789	data => WF_AUTOCANCEL,
		2790	signal => $signal,
		2791	prio => 0,
		2792	cb => sub {
		2793	cf::cleanup "SIG$signal";
		2794	},
		2795	);
		2796	}
		2797	}
		2798
		2799	sub write_runtime {
		2800	my $runtime = "$LOCALDIR/runtime";
		2801
		2802	# first touch the runtime file to show we are still running:
		2803	# the fsync below can take a very very long time.
		2804
		2805	IO::AIO::aio_utime $runtime, undef, undef;
		2806
		2807	my $guard = cf::lock_acquire "write_runtime";
		2808
		2809	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2810	or return;
		2811
		2812	my $value = $cf::RUNTIME + 90 + 10;
		2813	# 10 is the runtime save interval, for a monotonic clock
		2814	# 60 allows for the watchdog to kill the server.
		2815
		2816	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2817	and return;
		2818
		2819	# always fsync - this file is important
		2820	aio_fsync $fh
		2821	and return;
		2822
		2823	# touch it again to show we are up-to-date
		2824	aio_utime $fh, undef, undef;
		2825
		2826	close $fh
		2827	or return;
		2828
		2829	aio_rename "$runtime~", $runtime
		2830	and return;
		2831
		2832	warn "runtime file written.\n";
		2833
		2834	1
		2835	}
		2836
		2837	sub emergency_save() {
		2838	my $freeze_guard = cf::freeze_mainloop;
		2839
		2840	warn "enter emergency perl save\n";
		2841
		2842	cf::sync_job {
		2843	# use a peculiar iteration method to avoid tripping on perl
		2844	# refcount bugs in for. also avoids problems with players
		2845	# and maps saved/destroyed asynchronously.
		2846	warn "begin emergency player save\n";
		2847	for my $login (keys %cf::PLAYER) {
		2848	my $pl = $cf::PLAYER{$login} or next;
		2849	$pl->valid or next;
		2850	$pl->save;
		2851	}
		2852	warn "end emergency player save\n";
		2853
		2854	warn "begin emergency map save\n";
		2855	for my $path (keys %cf::MAP) {
		2856	my $map = $cf::MAP{$path} or next;
		2857	$map->valid or next;
		2858	$map->save;
		2859	}
		2860	warn "end emergency map save\n";
		2861
		2862	warn "begin emergency database checkpoint\n";
		2863	BDB::db_env_txn_checkpoint $DB_ENV;
		2864	warn "end emergency database checkpoint\n";
		2865	};
		2866
		2867	warn "leave emergency perl save\n";
		2868	}
		2869
		2870	sub post_cleanup {
		2871	my ($make_core) = @_;
		2872
		2873	warn Carp::longmess "post_cleanup backtrace"
		2874	if $make_core;
		2875	}
		2876
2026	sub reload() {	2877	sub do_reload_perl() {
2027	# can/must only be called in main	2878	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	2879	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	2880	warn "can only reload from main coroutine";
2030	return;	2881	return;
2031	}	2882	}
2032		2883
2033	warn "reloading...";	2884	warn "reloading...";
2034		2885
2035	local $FREEZE = 1;	2886	warn "entering sync_job";
		2887
		2888	cf::sync_job {
		2889	cf::write_runtime; # external watchdog should not bark
2036	cf::emergency_save;	2890	cf::emergency_save;
		2891	cf::write_runtime; # external watchdog should not bark
2037		2892
2038	eval {	2893	warn "syncing database to disk";
		2894	BDB::db_env_txn_checkpoint $DB_ENV;
		2895
2039	# if anything goes wrong in here, we should simply crash as we already saved	2896	# if anything goes wrong in here, we should simply crash as we already saved
2040		2897
2041	# cancel all watchers	2898	warn "cancelling all WF_AUTOCANCEL watchers";
2042	for (Event::all_watchers) {	2899	for (Event::all_watchers) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	2900	$_->cancel if $_->data & WF_AUTOCANCEL;
2044	}	2901	}
2045		2902
		2903	warn "flushing outstanding aio requests";
		2904	for (;;) {
		2905	BDB::flush;
		2906	IO::AIO::flush;
		2907	Coro::cede;
		2908	last unless IO::AIO::nreqs || BDB::nreqs;
		2909	warn "iterate...";
		2910	}
		2911
		2912	++$RELOAD;
		2913
2046	# cancel all extension coros	2914	warn "cancelling all extension coros";
2047	$_->cancel for values %EXT_CORO;	2915	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	2916	%EXT_CORO = ();
2049		2917
2050	# unload all extensions	2918	warn "removing commands";
2051	for (@exts) {	2919	%COMMAND = ();
		2920
		2921	warn "removing ext/exti commands";
		2922	%EXTCMD = ();
		2923	%EXTICMD = ();
		2924
		2925	warn "unloading/nuking all extensions";
		2926	for my $pkg (@EXTS) {
2052	warn "unloading <$_>";	2927	warn "... unloading $pkg";
2053	unload_extension $_;	2928
		2929	if (my $cb = $pkg->can ("unload")) {
		2930	eval {
		2931	$cb->($pkg);
		2932	1
		2933	} or warn "$pkg unloaded, but with errors: $@";
2054	}	2934	}
2055		2935
		2936	warn "... nuking $pkg";
		2937	Symbol::delete_package $pkg;
		2938	}
		2939
2056	# unload all modules loaded from $LIBDIR	2940	warn "unloading all perl modules loaded from $LIBDIR";
2057	while (my ($k, $v) = each %INC) {	2941	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2942	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059		2943
2060	warn "removing <$k>";	2944	warn "... unloading $k";
2061	delete $INC{$k};	2945	delete $INC{$k};
2062		2946
2063	$k =~ s/\.pm$//;	2947	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;	2948	$k =~ s/\//::/g;
2065		2949
…		…
2068	}	2952	}
2069		2953
2070	Symbol::delete_package $k;	2954	Symbol::delete_package $k;
2071	}	2955	}
2072		2956
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	2957	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	2958	Symbol::delete_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		2960
2081	# remove register_script_function callbacks
2082	# TODO
2083
2084	# unload cf.pm "a bit"	2961	warn "unloading cf.pm \"a bit\"";
2085	delete $INC{"cf.pm"};	2962	delete $INC{"cf.pm"};
		2963	delete $INC{"cf/pod.pm"};
2086		2964
2087	# don't, removes xs symbols, too,	2965	# don't, removes xs symbols, too,
2088	# and global variables created in xs	2966	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	2967	#Symbol::delete_package __PACKAGE__;
2090		2968
2091	# reload cf.pm	2969	warn "unload completed, starting to reload now";
		2970
2092	warn "reloading cf.pm";	2971	warn "reloading cf.pm";
2093	require cf;	2972	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2973	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095		2974
2096	# load config and database again	2975	warn "loading config and database again";
2097	cf::cfg_load;	2976	cf::cfg_load;
2098	cf::db_load;
2099		2977
2100	# load extensions
2101	warn "load extensions";	2978	warn "loading extensions";
2102	cf::load_extensions;	2979	cf::load_extensions;
2103		2980
2104	# reattach attachments to objects	2981	warn "reattaching attachments to objects/players";
2105	warn "reattach";	2982	_global_reattach; # objects, sockets
2106	_global_reattach;	2983	warn "reattaching attachments to maps";
2107	};	2984	reattach $_ for values %MAP;
		2985	warn "reattaching attachments to players";
		2986	reattach $_ for values %PLAYER;
2108		2987
2109	if ($@) {	2988	warn "leaving sync_job";
		2989
		2990	1
		2991	} or do {
2110	warn $@;	2992	warn $@;
2111	warn "error while reloading, exiting.";	2993	warn "error while reloading, exiting.";
2112	exit 1;	2994	exit 1;
2113	}	2995	};
2114		2996
2115	warn "reloaded successfully";	2997	warn "reloaded";
2116	};	2998	};
2117		2999
2118	#############################################################################	3000	our $RELOAD_WATCHER; # used only during reload
2119		3001
2120	unless ($LINK_MAP) {	3002	sub reload_perl() {
2121	$LINK_MAP = cf::map::new;	3003	# doing reload synchronously and two reloads happen back-to-back,
		3004	# coro crashes during coro_state_free->destroy here.
2122		3005
2123	$LINK_MAP->width (41);	3006	$RELOAD_WATCHER ||= Event->timer (
2124	$LINK_MAP->height (41);	3007	reentrant => 0,
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,	3008	after => 0,
		3009	data => WF_AUTOCANCEL,
2133	cb => sub {	3010	cb => sub {
2134	$_[0]->w->cancel;	3011	do_reload_perl;
2135		3012	undef $RELOAD_WATCHER;
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});	3013	},
2154		3014	);
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	3015	}
2160
2161	register "<global>", __PACKAGE__;
2162		3016
2163	register_command "reload" => sub {	3017	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	3018	my ($who, $arg) = @_;
2165		3019
2166	if ($who->flag (FLAG_WIZ)) {	3020	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	3021	$who->message ("reloading server.");
		3022	async { reload_perl };
2170	}	3023	}
2171	};	3024	};
2172		3025
2173	unshift @INC, $LIBDIR;	3026	unshift @INC, $LIBDIR;
2174		3027
		3028	my $bug_warning = 0;
		3029
		3030	our @WAIT_FOR_TICK;
		3031	our @WAIT_FOR_TICK_BEGIN;
		3032
		3033	sub wait_for_tick {
		3034	return unless $TICK_WATCHER->is_active;
		3035	return if $Coro::current == $Coro::main;
		3036
		3037	my $signal = new Coro::Signal;
		3038	push @WAIT_FOR_TICK, $signal;
		3039	$signal->wait;
		3040	}
		3041
		3042	sub wait_for_tick_begin {
		3043	return unless $TICK_WATCHER->is_active;
		3044	return if $Coro::current == $Coro::main;
		3045
		3046	my $signal = new Coro::Signal;
		3047	push @WAIT_FOR_TICK_BEGIN, $signal;
		3048	$signal->wait;
		3049	}
		3050
		3051	my $min = 1e6;#d#
		3052	my $avg = 10;
2175	$TICK_WATCHER = Event->timer (	3053	$TICK_WATCHER = Event->timer (
2176	reentrant => 0,	3054	reentrant => 0,
		3055	parked => 1,
2177	prio => 0,	3056	prio => 0,
2178	at => $NEXT_TICK || $TICK,	3057	at => $NEXT_TICK || $TICK,
2179	data => WF_AUTOCANCEL,	3058	data => WF_AUTOCANCEL,
2180	cb => sub {	3059	cb => sub {
2181	unless ($FREEZE) {	3060	if ($Coro::current != $Coro::main) {
		3061	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3062	unless ++$bug_warning > 10;
		3063	return;
		3064	}
		3065
		3066	$NOW = $tick_start = Event::time;
		3067
2182	cf::server_tick; # one server iteration	3068	cf::server_tick; # one server iteration
2183	$RUNTIME += $TICK;	3069
		3070	0 && sync_job {#d#
		3071	for(1..10) {
		3072	my $t = Event::time;
		3073	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3074	or die;
		3075
		3076	$map->width (50);
		3077	$map->height (50);
		3078	$map->alloc;
		3079	$map->_load_objects ("/tmp/x.map", 1);
		3080	my $t = Event::time - $t;
		3081
		3082	#next unless $t < 0.0013;#d#
		3083	if ($t < $min) {
		3084	$min = $t;
		3085	}
		3086	$avg = $avg * 0.99 + $t * 0.01;
		3087	}
		3088	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3089	exit 0;
		3090	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2184	}	3091	};
2185		3092
		3093	$RUNTIME += $TICK;
2186	$NEXT_TICK += $TICK;	3094	$NEXT_TICK += $TICK;
2187		3095
		3096	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3097	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3098	Coro::async_pool {
		3099	write_runtime
		3100	or warn "ERROR: unable to write runtime file: $!";
		3101	};
		3102	}
		3103
		3104	# my $AFTER = Event::time;
		3105	# warn $AFTER - $NOW;#d#
		3106
		3107	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3108	$sig->send;
		3109	}
		3110	while (my $sig = shift @WAIT_FOR_TICK) {
		3111	$sig->send;
		3112	}
		3113
		3114	$NOW = Event::time;
		3115
2188	# if we are delayed by four ticks or more, skip them all	3116	# if we are delayed by four ticks or more, skip them all
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3117	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2190		3118
2191	$TICK_WATCHER->at ($NEXT_TICK);	3119	$TICK_WATCHER->at ($NEXT_TICK);
2192	$TICK_WATCHER->start;	3120	$TICK_WATCHER->start;
		3121
		3122	$LOAD = ($NOW - $tick_start) / $TICK;
		3123	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3124
		3125	_post_tick;
		3126
		3127
2193	},	3128	},
2194	);	3129	);
2195		3130
		3131	{
2196	IO::AIO::max_poll_time $TICK * 0.2;	3132	BDB::max_poll_time $TICK * 0.1;
2197		3133	$BDB_POLL_WATCHER = Event->io (
2198	Event->io (	3134	reentrant => 0,
2199	fd => IO::AIO::poll_fileno,	3135	fd => BDB::poll_fileno,
2200	poll => 'r',	3136	poll => 'r',
2201	prio => 5,	3137	prio => 0,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,	3138	data => WF_AUTOCANCEL,
2208	after => 0,	3139	cb => \&BDB::poll_cb,
2209	interval => 10,	3140	);
2210	cb => sub {	3141	BDB::min_parallel 8;
2211	(Coro::unblock_sub {	3142
2212	write_runtime	3143	BDB::set_sync_prepare {
2213	or warn "ERROR: unable to write runtime file: $!";	3144	my $status;
		3145	my $current = $Coro::current;
		3146	(
		3147	sub {
		3148	$status = $!;
		3149	$current->ready; undef $current;
		3150	},
		3151	sub {
		3152	Coro::schedule while defined $current;
		3153	$! = $status;
		3154	},
		3155	)
		3156	};
		3157
		3158	unless ($DB_ENV) {
		3159	$DB_ENV = BDB::db_env_create;
		3160
		3161	cf::sync_job {
		3162	eval {
		3163	BDB::db_env_open
		3164	$DB_ENV,
		3165	$BDBDIR,
		3166	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3167	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3168	0666;
		3169
		3170	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3171
		3172	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3173	$DB_ENV->set_lk_detect;
		3174	};
		3175
		3176	cf::cleanup "db_env_open(db): $@" if $@;
2214	})->();	3177	};
2215	},	3178	}
2216	);	3179	}
		3180
		3181	{
		3182	IO::AIO::min_parallel 8;
		3183
		3184	undef $Coro::AIO::WATCHER;
		3185	IO::AIO::max_poll_time $TICK * 0.1;
		3186	$AIO_POLL_WATCHER = Event->io (
		3187	reentrant => 0,
		3188	data => WF_AUTOCANCEL,
		3189	fd => IO::AIO::poll_fileno,
		3190	poll => 'r',
		3191	prio => 6,
		3192	cb => \&IO::AIO::poll_cb,
		3193	);
		3194	}
		3195
		3196	my $_log_backtrace;
		3197
		3198	sub _log_backtrace {
		3199	my ($msg, @addr) = @_;
		3200
		3201	$msg =~ s/\n//;
		3202
		3203	# limit the # of concurrent backtraces
		3204	if ($_log_backtrace < 2) {
		3205	++$_log_backtrace;
		3206	async {
		3207	my @bt = fork_call {
		3208	@addr = map { sprintf "%x", $_ } @addr;
		3209	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3210	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3211	or die "addr2line: $!";
		3212
		3213	my @funcs;
		3214	my @res = <$fh>;
		3215	chomp for @res;
		3216	while (@res) {
		3217	my ($func, $line) = splice @res, 0, 2, ();
		3218	push @funcs, "[$func] $line";
		3219	}
		3220
		3221	@funcs
		3222	};
		3223
		3224	LOG llevInfo, "[ABT] $msg\n";
		3225	LOG llevInfo, "[ABT] $_\n" for @bt;
		3226	--$_log_backtrace;
		3227	};
		3228	} else {
		3229	LOG llevInfo, "[ABT] $msg\n";
		3230	LOG llevInfo, "[ABT] [suppressed]\n";
		3231	}
		3232	}
		3233
		3234	# load additional modules
		3235	use cf::pod;
2217		3236
2218	END { cf::emergency_save }	3237	END { cf::emergency_save }
2219		3238
2220	1	3239	1
2221		3240

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