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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.295 by root, Wed Jul 4 05:08:15 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->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) = @_;
…		…
949	cf::override;	1086	cf::override;
950	},	1087	},
951	on_extcmd => sub {	1088	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
953		1090
954	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($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<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	s/\s+\n/\n/g; # ws line-ends
		1418	s/\n\n+/\n/g; # double lines
		1419	s/^\n+//; # beginning lines
		1420	s/\n+$//; # ending lines
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
		1430	=item $player->ext_reply ($msgid, %msg)
		1431
		1432	Sends an ext reply to the player.
		1433
		1434	=cut
		1435
		1436	sub ext_reply($$%) {
		1437	my ($self, $id, %msg) = @_;
		1438
		1439	$msg{msgid} = $id;
		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1441	}
		1442
		1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
977	my ($path) = @_;	1470	my ($path) = @_;
978		1471
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1472	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1473
985	warn "loading '$path' into '$pkg'\n";	1474	for my $region (list) {
986		1475	if ($region->match && $path =~ $region->match) {
987	open my $fh, "<:utf8", $path	1476	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1477	if $region->specificity > $specificity;
989		1478	}
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	# }	1479	}
1019		1480
1020	# remove commands	1481	$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	}	1482	}
1126		1483
1127	=back	1484	=back
1128
1129		1485
1130	=head3 cf::map	1486	=head3 cf::map
1131		1487
1132	=over 4	1488	=over 4
1133		1489
…		…
1136	package cf::map;	1492	package cf::map;
1137		1493
1138	use Fcntl;	1494	use Fcntl;
1139	use Coro::AIO;	1495	use Coro::AIO;
1140		1496
		1497	use overload
		1498	'""' => \&as_string,
		1499	fallback => 1;
		1500
1141	our $MAX_RESET = 7200;	1501	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1502	our $DEFAULT_RESET = 3000;
1143		1503
1144	sub generate_random_map {	1504	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1505	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1506	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1507	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1508	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1509	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1510	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1511	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1512	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1513	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1514	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1515	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1516	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1517	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1518	(cf::region::find $rmp->{region}), $rmp->{custom}
		1519	)
		1520	}
		1521
		1522	=item cf::map->register ($regex, $prio)
		1523
		1524	Register a handler for the map path matching the given regex at the
		1525	givne priority (higher is better, built-in handlers have priority 0, the
		1526	default).
		1527
		1528	=cut
		1529
		1530	sub register {
		1531	my (undef, $regex, $prio) = @_;
		1532	my $pkg = caller;
		1533
		1534	no strict;
		1535	push @{"$pkg\::ISA"}, __PACKAGE__;
		1536
		1537	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1538	}
		1539
		1540	# also paths starting with '/'
		1541	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1542
		1543	sub thawer_merge {
		1544	my ($self, $merge) = @_;
		1545
		1546	# we have to keep some variables in memory intact
		1547	local $self->{path};
		1548	local $self->{load_path};
		1549
		1550	$self->SUPER::thawer_merge ($merge);
		1551	}
		1552
		1553	sub normalise {
		1554	my ($path, $base) = @_;
		1555
		1556	$path = "$path"; # make sure its a string
		1557
		1558	$path =~ s/\.map$//;
		1559
		1560	# map plan:
		1561	#
		1562	# /! non-realised random map exit (special hack!)
		1563	# {... are special paths that are not being touched
		1564	# ?xxx/... are special absolute paths
		1565	# ?random/... random maps
		1566	# /... normal maps
		1567	# ~user/... per-player map of a specific user
		1568
		1569	$path =~ s/$PATH_SEP/\//go;
		1570
		1571	# treat it as relative path if it starts with
		1572	# something that looks reasonable
		1573	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1574	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1575
		1576	$base =~ s{[^/]+/?$}{};
		1577	$path = "$base/$path";
		1578	}
		1579
		1580	for ($path) {
		1581	redo if s{//}{/};
		1582	redo if s{/\.?/}{/};
		1583	redo if s{/[^/]+/\.\./}{/};
		1584	}
		1585
		1586	$path
		1587	}
		1588
		1589	sub new_from_path {
		1590	my (undef, $path, $base) = @_;
		1591
		1592	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1593
		1594	$path = normalise $path, $base;
		1595
		1596	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1597	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1598	my $self = bless cf::map::new, $pkg;
		1599	$self->{path} = $path; $self->path ($path);
		1600	$self->init; # pass $1 etc.
		1601	return $self;
		1602	}
		1603	}
		1604
		1605	Carp::carp "unable to resolve path '$path' (base '$base').";
		1606	()
		1607	}
		1608
		1609	sub init {
		1610	my ($self) = @_;
		1611
		1612	$self
		1613	}
		1614
		1615	sub as_string {
		1616	my ($self) = @_;
		1617
		1618	"$self->{path}"
		1619	}
		1620
		1621	# the displayed name, this is a one way mapping
		1622	sub visible_name {
		1623	&as_string
		1624	}
		1625
		1626	# the original (read-only) location
		1627	sub load_path {
		1628	my ($self) = @_;
		1629
		1630	"$MAPDIR/$self->{path}.map"
		1631	}
		1632
		1633	# the temporary/swap location
		1634	sub save_path {
		1635	my ($self) = @_;
		1636
		1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1638	"$TMPDIR/$path.map"
		1639	}
		1640
		1641	# the unique path, undef == no special unique path
		1642	sub uniq_path {
		1643	my ($self) = @_;
		1644
		1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1646	"$UNIQUEDIR/$path"
1161	}	1647	}
1162		1648
1163	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1164	# all maps in C++...	1650	# all maps in C++...
1165	sub change_all_map_light {	1651	sub change_all_map_light {
…		…
1167		1653
1168	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
1170	}	1656	}
1171		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
		1664	}
		1665
		1666	sub unlink_save {
		1667	my ($self) = @_;
		1668
		1669	utf8::encode (my $save = $self->save_path);
		1670	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1671	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1672	}
		1673
1172	sub try_load_header($) {	1674	sub load_header_from($) {
1173	my ($path) = @_;	1675	my ($self, $path) = @_;
1174		1676
1175	utf8::encode $path;	1677	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1678	#aio_open $path, O_RDONLY, 0
		1679	# or return;
		1680
		1681	$self->_load_header ($path)
1177	or return;	1682	or return;
1178		1683
1179	my $map = cf::map::new	1684	$self->{load_path} = $path;
		1685
		1686	1
		1687	}
		1688
		1689	sub load_header_orig {
		1690	my ($self) = @_;
		1691
		1692	$self->load_header_from ($self->load_path)
		1693	}
		1694
		1695	sub load_header_temp {
		1696	my ($self) = @_;
		1697
		1698	$self->load_header_from ($self->save_path)
		1699	}
		1700
		1701	sub prepare_temp {
		1702	my ($self) = @_;
		1703
		1704	$self->last_access ((delete $self->{last_access})
		1705	|| $cf::RUNTIME); #d#
		1706	# safety
		1707	$self->{instantiate_time} = $cf::RUNTIME
		1708	if $self->{instantiate_time} > $cf::RUNTIME;
		1709	}
		1710
		1711	sub prepare_orig {
		1712	my ($self) = @_;
		1713
		1714	$self->{load_original} = 1;
		1715	$self->{instantiate_time} = $cf::RUNTIME;
		1716	$self->last_access ($cf::RUNTIME);
		1717	$self->instantiate;
		1718	}
		1719
		1720	sub load_header {
		1721	my ($self) = @_;
		1722
		1723	if ($self->load_header_temp) {
		1724	$self->prepare_temp;
		1725	} else {
		1726	$self->load_header_orig
1180	or return;	1727	or return;
		1728	$self->prepare_orig;
		1729	}
1181		1730
1182	$map->load_header ($path)	1731	$self->{deny_reset} = 1
1183	or return;	1732	if $self->no_reset;
1184		1733
1185	$map->{load_path} = $path;	1734	$self->default_region (cf::region::find_by_path $self->{path})
		1735	unless $self->default_region;
1186		1736
1187	$map	1737	1
1188	}	1738	}
1189		1739
1190	sub find_map;	1740	sub find;
1191	sub find_map {	1741	sub find {
1192	my ($path, $origin) = @_;	1742	my ($path, $origin) = @_;
1193		1743
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1744	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1745
1199	cf::lock_wait "map_find:$key";	1746	cf::lock_wait "map_find:$path";
1200		1747
1201	$cf::MAP{$key} || do {	1748	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1749	my $guard = cf::lock_acquire "map_find:$path";
1203		1750	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1751	or return;
1219		1752
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1754
1233	if ($map->should_reset) {	1755	$map->load_header
		1756	or return;
		1757
		1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1759	# doing this can freeze the server in a sync job, obviously
		1760	#$cf::WAIT_FOR_TICK->wait;
1234	$map->reset;	1761	$map->reset;
1235	undef $guard;	1762	undef $guard;
1236	$map = find_map $path	1763	return find $path;
1237	or return;
1238	}	1764	}
1239		1765
1240	$cf::MAP{$key} = $map	1766	$cf::MAP{$path} = $map
1241	}	1767	}
1242	}	1768	}
		1769
		1770	sub pre_load { }
		1771	sub post_load { }
1243		1772
1244	sub load {	1773	sub load {
1245	my ($self) = @_;	1774	my ($self) = @_;
1246		1775
		1776	local $self->{deny_reset} = 1; # loading can take a long time
		1777
1247	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1781	my $guard = cf::lock_acquire "map_load:$path";
1249		1782
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1784
1252	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1253		1786
1254	$self->alloc;	1787	$self->alloc;
		1788
		1789	$self->pre_load;
		1790	Coro::cede;
		1791
1255	$self->load_objects ($self->{load_path}, 1)	1792	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1793	or return;
1257		1794
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1796	if delete $self->{load_original};
1260		1797
1261	if (my $uniq = $path->uniq_path) {	1798	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1799	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1800	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1801	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1802	$self->_load_objects ($uniq, 0);
1266	}	1803	}
1267	}	1804	}
1268		1805
		1806	Coro::cede;
1269	# now do the right thing for maps	1807	# now do the right thing for maps
1270	$self->link_multipart_objects;	1808	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	1810	unless $self->difficulty;
		1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1282	$self->activate;	1820	$self->activate;
1283	}	1821	}
1284		1822
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1823	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1824	}
1287		1825
1288	sub load_map_sync {	1826	$self->post_load;
		1827	}
		1828
		1829	sub customise_for {
		1830	my ($self, $ob) = @_;
		1831
		1832	return find "~" . $ob->name . "/" . $self->{path}
		1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
		1837
		1838	$self
		1839	}
		1840
		1841	# find and load all maps in the 3x3 area around a map
		1842	sub load_diag {
		1843	my ($map) = @_;
		1844
		1845	my @diag; # diagonal neighbours
		1846
		1847	for (0 .. 3) {
		1848	my $neigh = $map->tile_path ($_)
		1849	or next;
		1850	$neigh = find $neigh, $map
		1851	or next;
		1852	$neigh->load;
		1853
		1854	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1855	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1856	}
		1857
		1858	for (@diag) {
		1859	my $neigh = find @$_
		1860	or next;
		1861	$neigh->load;
		1862	}
		1863	}
		1864
		1865	sub find_sync {
1289	my ($path, $origin) = @_;	1866	my ($path, $origin) = @_;
1290		1867
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1868	cf::sync_job { find $path, $origin }
		1869	}
1292		1870
1293	cf::sync_job {	1871	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1872	my ($map) = @_;
1295	or return;	1873
		1874	cf::sync_job { $map->load };
		1875	}
		1876
		1877	our %MAP_PREFETCH;
		1878	our $MAP_PREFETCHER = undef;
		1879
		1880	sub find_async {
		1881	my ($path, $origin) = @_;
		1882
		1883	$path = normalise $path, $origin && $origin->{path};
		1884
		1885	if (my $map = $cf::MAP{$path}) {
		1886	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1887	}
		1888
		1889	undef $MAP_PREFETCH{$path};
		1890	$MAP_PREFETCHER ||= cf::async {
		1891	while (%MAP_PREFETCH) {
		1892	for my $path (keys %MAP_PREFETCH) {
		1893	my $map = find $path
		1894	or next;
1296	$map->load;	1895	$map->load;
1297	$map	1896
		1897	delete $MAP_PREFETCH{$path};
		1898	}
		1899	}
		1900	undef $MAP_PREFETCHER;
1298	}	1901	};
		1902	$MAP_PREFETCHER->prio (6);
		1903
		1904	()
1299	}	1905	}
1300		1906
1301	sub save {	1907	sub save {
1302	my ($self) = @_;	1908	my ($self) = @_;
1303		1909
		1910	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1911
1304	$self->{last_save} = $cf::RUNTIME;	1912	$self->{last_save} = $cf::RUNTIME;
1305		1913
1306	return unless $self->dirty;	1914	return unless $self->dirty;
1307		1915
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1916	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1917	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1918
1311	$self->{load_path} = $save;	1919	$self->{load_path} = $save;
1312		1920
1313	return if $self->{deny_save};	1921	return if $self->{deny_save};
1314		1922
		1923	local $self->{last_access} = $self->last_access;#d#
		1924
		1925	cf::async {
		1926	$_->contr->save for $self->players;
		1927	};
		1928
1315	if ($uniq) {	1929	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1930	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	1931	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	1932	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1933	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	1934	}
1321	}	1935	}
1322		1936
1323	sub swap_out {	1937	sub swap_out {
1324	my ($self) = @_;	1938	my ($self) = @_;
1325		1939
1326	# save first because save cedes	1940	# save first because save cedes
1327	$self->save;	1941	$self->save;
		1942
		1943	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		1944
1329	return if $self->players;	1945	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	1946	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	1947	return if $self->{deny_save};
1332		1948
…		…
1336		1952
1337	sub reset_at {	1953	sub reset_at {
1338	my ($self) = @_;	1954	my ($self) = @_;
1339		1955
1340	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1343		1958
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		1961
…		…
1351	my ($self) = @_;	1966	my ($self) = @_;
1352		1967
1353	$self->reset_at <= $cf::RUNTIME	1968	$self->reset_at <= $cf::RUNTIME
1354	}	1969	}
1355		1970
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	1971	sub reset {
1378	my ($self) = @_;	1972	my ($self) = @_;
1379		1973
		1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1975
1380	return if $self->players;	1976	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		1977
1383	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
		1979
		1980	$self->in_memory (cf::MAP_SWAPPED);
		1981
		1982	# need to save uniques path
		1983	unless ($self->{deny_save}) {
		1984	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1985
		1986	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1987	if $uniq;
		1988	}
1384		1989
1385	delete $cf::MAP{$self->path};	1990	delete $cf::MAP{$self->path};
		1991
		1992	$self->clear;
1386		1993
1387	$_->clear_links_to ($self) for values %cf::MAP;	1994	$_->clear_links_to ($self) for values %cf::MAP;
1388		1995
1389	$self->unlink_save;	1996	$self->unlink_save;
1390	$self->destroy;	1997	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	2000	my $nuke_counter = "aaaa";
1394		2001
1395	sub nuke {	2002	sub nuke {
1396	my ($self) = @_;	2003	my ($self) = @_;
1397		2004
		2005	delete $cf::MAP{$self->path};
		2006
		2007	$self->unlink_save;
		2008
		2009	bless $self, "cf::map";
		2010	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	2011	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	2012	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	2013	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2014
		2015	$cf::MAP{$self->path} = $self;
		2016
1401	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1402	}	2018	}
1403		2019
1404	sub customise_for {	2020	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2021
1407	if ($map->per_player) {	2022	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
1409	}	2028	[
1410		2029	map {
1411	$map	2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
1412	}	2036	}
1413		2037
1414	sub emergency_save {	2038	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2039
1417	warn "enter emergency map save\n";	2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
1418		2042
1419	cf::sync_job {	2043	=cut
1420	warn "begin emergency map save\n";
1421	$_->save for values %cf::MAP;
1422	};
1423		2044
1424	warn "end emergency map save\n";	2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item cf::map::unique_maps
		2057
		2058	Returns an arrayref of paths of all shared maps that have
		2059	instantiated unique items. May block.
		2060
		2061	=cut
		2062
		2063	sub unique_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $UNIQUEDIR or [] }
		2071	]
1425	}	2072	}
1426		2073
1427	package cf;	2074	package cf;
1428		2075
1429	=back	2076	=back
1430		2077
		2078	=head3 cf::object
		2079
		2080	=cut
		2081
		2082	package cf::object;
		2083
		2084	=over 4
		2085
		2086	=item $ob->inv_recursive
		2087
		2088	Returns the inventory of the object _and_ their inventories, recursively.
		2089
		2090	=cut
		2091
		2092	sub inv_recursive_;
		2093	sub inv_recursive_ {
		2094	map { $_, inv_recursive_ $_->inv } @_
		2095	}
		2096
		2097	sub inv_recursive {
		2098	inv_recursive_ inv $_[0]
		2099	}
		2100
		2101	package cf;
		2102
		2103	=back
1431		2104
1432	=head3 cf::object::player	2105	=head3 cf::object::player
1433		2106
1434	=over 4	2107	=over 4
1435		2108
…		…
1449		2122
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2124
1452	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1454	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1457	}	2144	}
1458	}	2145	}
1459		2146
1460	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1461		2148
…		…
1475		2162
1476	=item $player_object->enter_link	2163	=item $player_object->enter_link
1477		2164
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2165	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2166
1480	The player should be reaosnably safe there for short amounts of time. You	2167	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	2168	I<MUST> call C<leave_link> as soon as possible, though.
1482		2169
		2170	Will never block.
		2171
1483	=item $player_object->leave_link ($map, $x, $y)	2172	=item $player_object->leave_link ($map, $x, $y)
1484		2173
1485	Moves the player out of the specila link map onto the given map. If the	2174	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2175	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2176	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2177	fails, to the emergency map position.
1489		2178
1490	Might block.	2179	Might block.
1491		2180
1492	=cut	2181	=cut
		2182
		2183	sub link_map {
		2184	unless ($LINK_MAP) {
		2185	$LINK_MAP = cf::map::find "{link}"
		2186	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2187	$LINK_MAP->load;
		2188	}
		2189
		2190	$LINK_MAP
		2191	}
1493		2192
1494	sub cf::object::player::enter_link {	2193	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2194	my ($self) = @_;
1496		2195
1497	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1498		2197
1499	return if $self->map == $LINK_MAP;	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2199
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1503		2202
1504	$self->enter_map ($LINK_MAP, 20, 20);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	2204	}
1506		2205
1507	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1509		2210
1510	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1511		2212
1512	unless ($map) {	2213	unless ($map) {
1513	# restore original map position	2214	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2215	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2216	$map = cf::map::find $map;
1516		2217
1517	unless ($map) {	2218	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2219	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2220	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2221	or die "FATAL: cannot load emergency map\n";
1521	}	2222	}
1522	}	2223	}
1523		2224
1524	($x, $y) = (-1, -1)	2225	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	2228	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2229	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2230	if $x <=0 && $y <= 0;
1530		2231
1531	$map->load;	2232	$map->load;
		2233	$map->load_diag;
1532		2234
		2235	return unless $self->contr->active;
1533	$self->activate_recursive;	2236	$self->activate_recursive;
		2237
		2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1535	}	2240	}
1536		2241
1537	cf::player->attach (
1538	on_logout => sub {
1539	my ($pl) = @_;
1540
1541	# abort map switching before logout
1542	if ($pl->ob->{_link_pos}) {
1543	cf::sync_job {
1544	$pl->ob->leave_link
1545	};
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550
1551	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564
1565	=item $player_object->goto_map ($path, $x, $y)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1566		2243
1567	=cut	2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
1568		2248
		2249	=cut
		2250
		2251	our $GOTOGEN;
		2252
1569	sub cf::object::player::goto_map {	2253	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2258
1572	$self->enter_link;	2259	$self->enter_link;
1573		2260
1574	(cf::async {	2261	(async {
1575	$path = new cf::path $path;	2262	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
1579		2267	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2268	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
1584		2271
		2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
		2278	}
		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1586	})->prio (1);	2284	})->prio (1);
1587	}	2285	}
1588		2286
1589	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1590		2288
…		…
1592		2290
1593	sub parse_random_map_params {	2291	sub parse_random_map_params {
1594	my ($spec) = @_;	2292	my ($spec) = @_;
1595		2293
1596	my $rmp = { # defaults	2294	my $rmp = { # defaults
1597	xsize => 10,	2295	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2296	ysize => (cf::rndm 15, 40),
		2297	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2298	#layout => string,
1599	};	2299	};
1600		2300
1601	for (split /\n/, $spec) {	2301	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2302	my ($k, $v) = split /\s+/, $_, 2;
1603		2303
…		…
1607	$rmp	2307	$rmp
1608	}	2308	}
1609		2309
1610	sub prepare_random_map {	2310	sub prepare_random_map {
1611	my ($exit) = @_;	2311	my ($exit) = @_;
		2312
		2313	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2314
1613	# all this does is basically replace the /! path by	2315	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2316	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2317	# that depends on the exit object
1616		2318
1617	my $rmp = parse_random_map_params $exit->msg;	2319	my $rmp = parse_random_map_params $exit->msg;
1618		2320
1619	if ($exit->map) {	2321	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2322	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2323	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2324	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2325	$rmp->{origin_y} = $exit->y;
1624	}	2326	}
1625		2327
1626	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1627		2329
1628	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
		2332	my $meta = "$RANDOMDIR/$md5.meta";
1630		2333
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
		2336	undef $fh;
		2337	aio_rename "$meta~", $meta;
1633		2338
1634	$exit->slaying ("?random/$md5");	2339	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2340	$exit->msg (undef);
1636	}	2341	}
1637	}	2342	}
…		…
1639	sub cf::object::player::enter_exit {	2344	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2345	my ($self, $exit) = @_;
1641		2346
1642	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
1643		2348
		2349	if ($exit->slaying eq "/!") {
		2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
		2353	cf::sync_job { prepare_random_map $exit };
		2354	}
		2355
		2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2357	my $hp = $exit->stats->hp;
		2358	my $sp = $exit->stats->sp;
		2359
1644	$self->enter_link;	2360	$self->enter_link;
1645		2361
1646	(cf::async {	2362	(async {
		2363	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2364	unless (eval {
1648	prepare_random_map $exit	2365	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2366
1654	1;	2367	1;
1655	}) {	2368	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2369	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2370	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2371	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2372	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2373
1661	warn "ERROR in enter_exit: $@";	2374	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2375	$self->leave_link;
1663	}	2376	}
1664	})->prio (1);	2377	})->prio (1);
…		…
1677		2390
1678	sub cf::client::send_drawinfo {	2391	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2392	my ($self, $text, $flags) = @_;
1680		2393
1681	utf8::encode $text;	2394	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2395	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2396	}
1684		2397
		2398	=item $client->send_msg ($color, $type, $msg, [extra...])
		2399
		2400	Send a drawinfo or msg packet to the client, formatting the msg for the
		2401	client if neccessary. C<$type> should be a string identifying the type of
		2402	the message, with C<log> being the default. If C<$color> is negative, suppress
		2403	the message unless the client supports the msg packet.
		2404
		2405	=cut
		2406
		2407	sub cf::client::send_msg {
		2408	my ($self, $color, $type, $msg, @extra) = @_;
		2409
		2410	$msg = $self->pl->expand_cfpod ($msg);
		2411
		2412	return unless @extra || length $msg;
		2413
		2414	if ($self->can_msg) {
		2415	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2416	} else {
		2417	# replace some tags by gcfclient-compatible ones
		2418	for ($msg) {
		2419	1 while
		2420	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2421	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2422	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2423	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2424	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2425	}
		2426
		2427	if ($color >= 0) {
		2428	if (0 && $msg =~ /\[/) {
		2429	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2430	} else {
		2431	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2432	$self->send_packet ("drawinfo $color $msg")
		2433	}
		2434	}
		2435	}
		2436	}
		2437
		2438	=item $client->ext_event ($type, %msg)
		2439
		2440	Sends an ext event to the client.
		2441
		2442	=cut
		2443
		2444	sub cf::client::ext_event($$%) {
		2445	my ($self, $type, %msg) = @_;
		2446
		2447	$msg{msgtype} = "event_$type";
		2448	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2449	}
1685		2450
1686	=item $success = $client->query ($flags, "text", \&cb)	2451	=item $success = $client->query ($flags, "text", \&cb)
1687		2452
1688	Queues a query to the client, calling the given callback with	2453	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2454	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2455	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2456
1692	Queries can fail, so check the return code. Or don't, as queries will become	2457	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2458	become reliable at some point in the future.
1694		2459
1695	=cut	2460	=cut
1696		2461
1697	sub cf::client::query {	2462	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2463	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2471	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2472	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2473
1709	$self->send_packet ($self->{query_queue}[0][0])	2474	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2475	if @{ $self->{query_queue} } == 1;
		2476
		2477	1
1711	}	2478	}
1712		2479
1713	cf::client->attach (	2480	cf::client->attach (
		2481	on_connect => sub {
		2482	my ($ns) = @_;
		2483
		2484	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2485	},
1714	on_reply => sub {	2486	on_reply => sub {
1715	my ($ns, $msg) = @_;	2487	my ($ns, $msg) = @_;
1716		2488
1717	# this weird shuffling is so that direct followup queries	2489	# this weird shuffling is so that direct followup queries
1718	# get handled first	2490	# get handled first
1719	my $queue = delete $ns->{query_queue}	2491	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2492	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2493
1722	(shift @$queue)->[1]->($msg);	2494	(shift @$queue)->[1]->($msg);
		2495	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2496
1724	push @{ $ns->{query_queue} }, @$queue;	2497	push @{ $ns->{query_queue} }, @$queue;
1725		2498
1726	if (@{ $ns->{query_queue} } == @$queue) {	2499	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2500	if (@$queue) {
…		…
1729	} else {	2502	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2503	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2504	}
1732	}	2505	}
1733	},	2506	},
		2507	on_exticmd => sub {
		2508	my ($ns, $buf) = @_;
		2509
		2510	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2511
		2512	if (ref $msg) {
		2513	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2514	if (my %reply = $cb->($ns, $msg)) {
		2515	$reply{msgid} = $msg->{msgid};
		2516	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2517	}
		2518	}
		2519	} else {
		2520	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2521	}
		2522
		2523	cf::override;
		2524	},
1734	);	2525	);
1735		2526
1736	=item $client->coro (\&cb)	2527	=item $client->async (\&cb)
1737		2528
1738	Create a new coroutine, running the specified callback. The coroutine will	2529	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2530	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2531	or loss of connection).
1741		2532
1742	=cut	2533	=cut
1743		2534
1744	sub cf::client::coro {	2535	sub cf::client::async {
1745	my ($self, $cb) = @_;	2536	my ($self, $cb) = @_;
1746		2537
1747	my $coro = &cf::async ($cb);	2538	my $coro = &Coro::async ($cb);
1748		2539
1749	$coro->on_destroy (sub {	2540	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2541	delete $self->{_coro}{$coro+0};
1751	});	2542	});
1752		2543
…		…
1785		2576
1786	# here we export the classes and methods available to script code	2577	# here we export the classes and methods available to script code
1787		2578
1788	=pod	2579	=pod
1789		2580
1790	The following fucntions and emthods are available within a safe environment:	2581	The following functions and methods are available within a safe environment:
1791		2582
1792	cf::object contr pay_amount pay_player map	2583	cf::object contr pay_amount pay_player map
1793	cf::object::player player	2584	cf::object::player player
1794	cf::player peaceful	2585	cf::player peaceful
1795	cf::map trigger	2586	cf::map trigger
…		…
1876	=back	2667	=back
1877		2668
1878	=cut	2669	=cut
1879		2670
1880	#############################################################################	2671	#############################################################################
		2672	# the server's init and main functions
1881		2673
1882	=head2 EXTENSION DATABASE SUPPORT	2674	sub load_facedata($) {
		2675	my ($path) = @_;
1883		2676
1884	Crossfire maintains a very simple database for extension use. It can	2677	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2678
1888	The parameter C<$family> should best start with the name of the extension	2679	my $facedata;
1889	using it, it should be unique.	2680	0 < aio_load $path, $facedata
		2681	or die "$path: $!";
1890		2682
1891	=over 4	2683	$facedata = Coro::Storable::thaw $facedata;
1892		2684
1893	=item $hashref = cf::db_get $family	2685	$facedata->{version} == 2
		2686	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2687
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key
1900
1901	Returns a single value from the database
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}	2688	{
		2689	my $faces = $facedata->{faceinfo};
1931		2690
1932	my $pid;	2691	while (my ($face, $info) = each %$faces) {
1933		2692	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1934	sub db_save() {	2693	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1935	waitpid $pid, 0 if $pid;	2694	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1936	if (0 == ($pid = fork)) {	2695	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1937	$DB->{_meta}{version} = 1;	2696	Coro::cede;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2697	}
1980	);
1981	}
1982		2698
1983	#############################################################################	2699	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2700	next unless $info->{smooth};
		2701	my $idx = cf::face::find $face
		2702	or next;
		2703	if (my $smooth = cf::face::find $info->{smooth}) {
		2704	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2705	} else {
		2706	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2707	}
		2708	Coro::cede;
		2709	}
		2710	}
		2711
		2712	{
		2713	my $anims = $facedata->{animinfo};
		2714
		2715	while (my ($anim, $info) = each %$anims) {
		2716	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2717	Coro::cede;
		2718	}
		2719
		2720	cf::anim::invalidate_all; # d'oh
		2721	}
		2722
		2723	1
		2724	}
		2725
		2726	sub reload_regions {
		2727	load_resource_file "$MAPDIR/regions"
		2728	or die "unable to load regions file\n";
		2729	}
		2730
		2731	sub reload_facedata {
		2732	load_facedata "$DATADIR/facedata"
		2733	or die "unable to load facedata\n";
		2734	}
		2735
		2736	sub reload_archetypes {
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
		2739	#d# NEED to laod twice to resolve forward references
		2740	# this really needs to be done in an extra post-pass
		2741	# (which needs to be synchronous, so solve it differently)
		2742	load_resource_file "$DATADIR/archetypes"
		2743	or die "unable to load archetypes\n";
		2744	}
		2745
		2746	sub reload_treasures {
		2747	load_resource_file "$DATADIR/treasures"
		2748	or die "unable to load treasurelists\n";
		2749	}
		2750
		2751	sub reload_resources {
		2752	warn "reloading resource files...\n";
		2753
		2754	reload_regions;
		2755	reload_facedata;
		2756	#reload_archetypes;#d#
		2757	reload_archetypes;
		2758	reload_treasures;
		2759
		2760	warn "finished reloading resource files\n";
		2761	}
		2762
		2763	sub init {
		2764	reload_resources;
		2765	}
1985		2766
1986	sub cfg_load {	2767	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2768	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2769	or return;
1989		2770
1990	local $/;	2771	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2772	*CFG = YAML::Syck::Load <$fh>;
1992		2773
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2774	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2775
		2776	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2777	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2778
1995	if (exists $CFG{mlockall}) {	2779	if (exists $CFG{mlockall}) {
1996	eval {	2780	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2781	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2782	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2783	};
2000	warn $@ if $@;	2784	warn $@ if $@;
2001	}	2785	}
2002	}	2786	}
2003		2787
2004	sub main {	2788	sub main {
2005	# we must not ever block the main coroutine	2789	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2790	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2791	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2792	(async {
2009	Event::one_event;	2793	Event::one_event;
2010	})->();	2794	})->prio (Coro::PRIO_MAX);
2011	};	2795	};
2012		2796
2013	cfg_load;	2797	cfg_load;
2014	db_load;	2798	db_init;
2015	load_extensions;	2799	load_extensions;
		2800
		2801	$TICK_WATCHER->start;
2016	Event::loop;	2802	Event::loop;
2017	}	2803	}
2018		2804
2019	#############################################################################	2805	#############################################################################
2020	# initialisation	2806	# initialisation and cleanup
2021		2807
		2808	# install some emergency cleanup handlers
		2809	BEGIN {
		2810	for my $signal (qw(INT HUP TERM)) {
		2811	Event->signal (
		2812	reentrant => 0,
		2813	data => WF_AUTOCANCEL,
		2814	signal => $signal,
		2815	prio => 0,
		2816	cb => sub {
		2817	cf::cleanup "SIG$signal";
		2818	},
		2819	);
		2820	}
		2821	}
		2822
		2823	sub write_runtime {
		2824	my $runtime = "$LOCALDIR/runtime";
		2825
		2826	# first touch the runtime file to show we are still running:
		2827	# the fsync below can take a very very long time.
		2828
		2829	IO::AIO::aio_utime $runtime, undef, undef;
		2830
		2831	my $guard = cf::lock_acquire "write_runtime";
		2832
		2833	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2834	or return;
		2835
		2836	my $value = $cf::RUNTIME + 90 + 10;
		2837	# 10 is the runtime save interval, for a monotonic clock
		2838	# 60 allows for the watchdog to kill the server.
		2839
		2840	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2841	and return;
		2842
		2843	# always fsync - this file is important
		2844	aio_fsync $fh
		2845	and return;
		2846
		2847	# touch it again to show we are up-to-date
		2848	aio_utime $fh, undef, undef;
		2849
		2850	close $fh
		2851	or return;
		2852
		2853	aio_rename "$runtime~", $runtime
		2854	and return;
		2855
		2856	warn "runtime file written.\n";
		2857
		2858	1
		2859	}
		2860
		2861	sub emergency_save() {
		2862	my $freeze_guard = cf::freeze_mainloop;
		2863
		2864	warn "enter emergency perl save\n";
		2865
		2866	cf::sync_job {
		2867	# use a peculiar iteration method to avoid tripping on perl
		2868	# refcount bugs in for. also avoids problems with players
		2869	# and maps saved/destroyed asynchronously.
		2870	warn "begin emergency player save\n";
		2871	for my $login (keys %cf::PLAYER) {
		2872	my $pl = $cf::PLAYER{$login} or next;
		2873	$pl->valid or next;
		2874	$pl->save;
		2875	}
		2876	warn "end emergency player save\n";
		2877
		2878	warn "begin emergency map save\n";
		2879	for my $path (keys %cf::MAP) {
		2880	my $map = $cf::MAP{$path} or next;
		2881	$map->valid or next;
		2882	$map->save;
		2883	}
		2884	warn "end emergency map save\n";
		2885
		2886	warn "begin emergency database checkpoint\n";
		2887	BDB::db_env_txn_checkpoint $DB_ENV;
		2888	warn "end emergency database checkpoint\n";
		2889	};
		2890
		2891	warn "leave emergency perl save\n";
		2892	}
		2893
		2894	sub post_cleanup {
		2895	my ($make_core) = @_;
		2896
		2897	warn Carp::longmess "post_cleanup backtrace"
		2898	if $make_core;
		2899	}
		2900
2022	sub reload() {	2901	sub do_reload_perl() {
2023	# can/must only be called in main	2902	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2903	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2904	warn "can only reload from main coroutine";
2026	return;	2905	return;
2027	}	2906	}
2028		2907
2029	warn "reloading...";	2908	warn "reloading...";
2030		2909
2031	local $FREEZE = 1;	2910	warn "entering sync_job";
		2911
		2912	cf::sync_job {
		2913	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2914	cf::emergency_save;
		2915	cf::write_runtime; # external watchdog should not bark
2033		2916
2034	eval {	2917	warn "syncing database to disk";
		2918	BDB::db_env_txn_checkpoint $DB_ENV;
		2919
2035	# if anything goes wrong in here, we should simply crash as we already saved	2920	# if anything goes wrong in here, we should simply crash as we already saved
2036		2921
2037	# cancel all watchers	2922	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2923	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2924	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2925	}
2041		2926
		2927	warn "flushing outstanding aio requests";
		2928	for (;;) {
		2929	BDB::flush;
		2930	IO::AIO::flush;
		2931	Coro::cede;
		2932	last unless IO::AIO::nreqs || BDB::nreqs;
		2933	warn "iterate...";
		2934	}
		2935
		2936	++$RELOAD;
		2937
2042	# cancel all extension coros	2938	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2939	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2940	%EXT_CORO = ();
2045		2941
2046	# unload all extensions	2942	warn "removing commands";
2047	for (@exts) {	2943	%COMMAND = ();
		2944
		2945	warn "removing ext/exti commands";
		2946	%EXTCMD = ();
		2947	%EXTICMD = ();
		2948
		2949	warn "unloading/nuking all extensions";
		2950	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2951	warn "... unloading $pkg";
2049	unload_extension $_;	2952
		2953	if (my $cb = $pkg->can ("unload")) {
		2954	eval {
		2955	$cb->($pkg);
		2956	1
		2957	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2958	}
2051		2959
		2960	warn "... nuking $pkg";
		2961	Symbol::delete_package $pkg;
		2962	}
		2963
2052	# unload all modules loaded from $LIBDIR	2964	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2965	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2966	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2967
2056	warn "removing <$k>";	2968	warn "... unloading $k";
2057	delete $INC{$k};	2969	delete $INC{$k};
2058		2970
2059	$k =~ s/\.pm$//;	2971	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2972	$k =~ s/\//::/g;
2061		2973
…		…
2064	}	2976	}
2065		2977
2066	Symbol::delete_package $k;	2978	Symbol::delete_package $k;
2067	}	2979	}
2068		2980
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2981	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2982	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2983	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2984
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2985	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2986	delete $INC{"cf.pm"};
		2987	delete $INC{"cf/pod.pm"};
2082		2988
2083	# don't, removes xs symbols, too,	2989	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2990	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2991	#Symbol::delete_package __PACKAGE__;
2086		2992
2087	# reload cf.pm	2993	warn "unload completed, starting to reload now";
		2994
2088	warn "reloading cf.pm";	2995	warn "reloading cf.pm";
2089	require cf;	2996	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2997	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2998
2092	# load config and database again	2999	warn "loading config and database again";
2093	cf::cfg_load;	3000	cf::cfg_load;
2094	cf::db_load;
2095		3001
2096	# load extensions
2097	warn "load extensions";	3002	warn "loading extensions";
2098	cf::load_extensions;	3003	cf::load_extensions;
2099		3004
2100	# reattach attachments to objects	3005	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3006	_global_reattach; # objects, sockets
2102	_global_reattach;	3007	warn "reattaching attachments to maps";
2103	};	3008	reattach $_ for values %MAP;
		3009	warn "reattaching attachments to players";
		3010	reattach $_ for values %PLAYER;
2104		3011
2105	if ($@) {	3012	warn "leaving sync_job";
		3013
		3014	1
		3015	} or do {
2106	warn $@;	3016	warn $@;
2107	warn "error while reloading, exiting.";	3017	warn "error while reloading, exiting.";
2108	exit 1;	3018	exit 1;
2109	}	3019	};
2110		3020
2111	warn "reloaded successfully";	3021	warn "reloaded";
2112	};	3022	};
2113		3023
2114	#############################################################################	3024	our $RELOAD_WATCHER; # used only during reload
2115		3025
2116	unless ($LINK_MAP) {	3026	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3027	# doing reload synchronously and two reloads happen back-to-back,
		3028	# coro crashes during coro_state_free->destroy here.
2118		3029
2119	$LINK_MAP->width (41);	3030	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3031	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	3032	after => 0,
		3033	data => WF_AUTOCANCEL,
2129	cb => sub {	3034	cb => sub {
2130	$_[0]->w->cancel;	3035	do_reload_perl;
2131		3036	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	3037	},
2150		3038	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3039	}
2156
2157	register "<global>", __PACKAGE__;
2158		3040
2159	register_command "reload" => sub {	3041	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3042	my ($who, $arg) = @_;
2161		3043
2162	if ($who->flag (FLAG_WIZ)) {	3044	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3045	$who->message ("reloading server.");
		3046	async { reload_perl };
2166	}	3047	}
2167	};	3048	};
2168		3049
2169	unshift @INC, $LIBDIR;	3050	unshift @INC, $LIBDIR;
2170		3051
		3052	my $bug_warning = 0;
		3053
		3054	our @WAIT_FOR_TICK;
		3055	our @WAIT_FOR_TICK_BEGIN;
		3056
		3057	sub wait_for_tick {
		3058	return unless $TICK_WATCHER->is_active;
		3059	return if $Coro::current == $Coro::main;
		3060
		3061	my $signal = new Coro::Signal;
		3062	push @WAIT_FOR_TICK, $signal;
		3063	$signal->wait;
		3064	}
		3065
		3066	sub wait_for_tick_begin {
		3067	return unless $TICK_WATCHER->is_active;
		3068	return if $Coro::current == $Coro::main;
		3069
		3070	my $signal = new Coro::Signal;
		3071	push @WAIT_FOR_TICK_BEGIN, $signal;
		3072	$signal->wait;
		3073	}
		3074
		3075	my $min = 1e6;#d#
		3076	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3077	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3078	reentrant => 0,
		3079	parked => 1,
2173	prio => 0,	3080	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3081	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3082	data => WF_AUTOCANCEL,
2176	cb => sub {	3083	cb => sub {
2177	unless ($FREEZE) {	3084	if ($Coro::current != $Coro::main) {
		3085	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3086	unless ++$bug_warning > 10;
		3087	return;
		3088	}
		3089
		3090	$NOW = $tick_start = Event::time;
		3091
2178	cf::server_tick; # one server iteration	3092	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;	3093
		3094	0 && sync_job {#d#
		3095	for(1..10) {
		3096	my $t = Event::time;
		3097	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3098	or die;
		3099
		3100	$map->width (50);
		3101	$map->height (50);
		3102	$map->alloc;
		3103	$map->_load_objects ("/tmp/x.map", 1);
		3104	my $t = Event::time - $t;
		3105
		3106	#next unless $t < 0.0013;#d#
		3107	if ($t < $min) {
		3108	$min = $t;
		3109	}
		3110	$avg = $avg * 0.99 + $t * 0.01;
		3111	}
		3112	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3113	exit 0;
		3114	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2180	}	3115	};
2181		3116
		3117	$RUNTIME += $TICK;
2182	$NEXT_TICK += $TICK;	3118	$NEXT_TICK += $TICK;
2183		3119
		3120	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3121	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3122	Coro::async_pool {
		3123	write_runtime
		3124	or warn "ERROR: unable to write runtime file: $!";
		3125	};
		3126	}
		3127
		3128	# my $AFTER = Event::time;
		3129	# warn $AFTER - $NOW;#d#
		3130
		3131	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3132	$sig->send;
		3133	}
		3134	while (my $sig = shift @WAIT_FOR_TICK) {
		3135	$sig->send;
		3136	}
		3137
		3138	$NOW = Event::time;
		3139
2184	# if we are delayed by four ticks or more, skip them all	3140	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3141	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2186		3142
2187	$TICK_WATCHER->at ($NEXT_TICK);	3143	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;	3144	$TICK_WATCHER->start;
		3145
		3146	$LOAD = ($NOW - $tick_start) / $TICK;
		3147	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3148
		3149	_post_tick;
		3150
		3151
2189	},	3152	},
2190	);	3153	);
2191		3154
		3155	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	3156	BDB::max_poll_time $TICK * 0.1;
2193		3157	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	3158	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	3159	fd => BDB::poll_fileno,
2196	poll => 'r',	3160	poll => 'r',
2197	prio => 5,	3161	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	3162	data => WF_AUTOCANCEL,
2204	after => 0,	3163	cb => \&BDB::poll_cb,
2205	interval => 10,	3164	);
2206	cb => sub {	3165	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	3166
2208	write_runtime	3167	BDB::set_sync_prepare {
2209	or warn "ERROR: unable to write runtime file: $!";	3168	my $status;
		3169	my $current = $Coro::current;
		3170	(
		3171	sub {
		3172	$status = $!;
		3173	$current->ready; undef $current;
		3174	},
		3175	sub {
		3176	Coro::schedule while defined $current;
		3177	$! = $status;
		3178	},
		3179	)
		3180	};
		3181
		3182	unless ($DB_ENV) {
		3183	$DB_ENV = BDB::db_env_create;
		3184
		3185	cf::sync_job {
		3186	eval {
		3187	BDB::db_env_open
		3188	$DB_ENV,
		3189	$BDBDIR,
		3190	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3191	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3192	0666;
		3193
		3194	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3195
		3196	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3197	$DB_ENV->set_lk_detect;
		3198	};
		3199
		3200	cf::cleanup "db_env_open(db): $@" if $@;
2210	})->();	3201	};
2211	},	3202	}
2212	);	3203	}
		3204
		3205	{
		3206	IO::AIO::min_parallel 8;
		3207
		3208	undef $Coro::AIO::WATCHER;
		3209	IO::AIO::max_poll_time $TICK * 0.1;
		3210	$AIO_POLL_WATCHER = Event->io (
		3211	reentrant => 0,
		3212	data => WF_AUTOCANCEL,
		3213	fd => IO::AIO::poll_fileno,
		3214	poll => 'r',
		3215	prio => 6,
		3216	cb => \&IO::AIO::poll_cb,
		3217	);
		3218	}
		3219
		3220	my $_log_backtrace;
		3221
		3222	sub _log_backtrace {
		3223	my ($msg, @addr) = @_;
		3224
		3225	$msg =~ s/\n//;
		3226
		3227	# limit the # of concurrent backtraces
		3228	if ($_log_backtrace < 2) {
		3229	++$_log_backtrace;
		3230	async {
		3231	my @bt = fork_call {
		3232	@addr = map { sprintf "%x", $_ } @addr;
		3233	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3234	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3235	or die "addr2line: $!";
		3236
		3237	my @funcs;
		3238	my @res = <$fh>;
		3239	chomp for @res;
		3240	while (@res) {
		3241	my ($func, $line) = splice @res, 0, 2, ();
		3242	push @funcs, "[$func] $line";
		3243	}
		3244
		3245	@funcs
		3246	};
		3247
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] $_\n" for @bt;
		3250	--$_log_backtrace;
		3251	};
		3252	} else {
		3253	LOG llevInfo, "[ABT] $msg\n";
		3254	LOG llevInfo, "[ABT] [suppressed]\n";
		3255	}
		3256	}
		3257
		3258	# load additional modules
		3259	use cf::pod;
2213		3260
2214	END { cf::emergency_save }	3261	END { cf::emergency_save }
2215		3262
2216	1	3263	1
2217		3264

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