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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.129 by root, Wed Jan 3 00:41:19 2007 UTC vs.
Revision 1.291 by root, Tue Jul 3 00:54:44 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	93
55	our $RANDOM_MAPS = cf::localdir . "/random";	94	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
57		100
58	binmode STDOUT;	101	binmode STDOUT;
59	binmode STDERR;	102	binmode STDERR;
60		103
61	# read virtual server time, if available	104	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
66	}	109	}
67		110
68	mkdir cf::localdir;	111	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		113
74	# a special map that is always available	114	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		115
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	116	sub cf::map::normalise;
78		117
79	#############################################################################	118	#############################################################################
80		119
81	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
82		121
…		…
89	=item $cf::RUNTIME	128	=item $cf::RUNTIME
90		129
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	131	every server tick.
93		132
94	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		136
96	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
98		141
99	=item $cf::NOW	142	=item $cf::NOW
100		143
101	The time of the last (current) server tick.	144	The time of the last (current) server tick.
102		145
103	=item $cf::TICK	146	=item $cf::TICK
104		147
105	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
106		159
107	=item %cf::CFG	160	=item %cf::CFG
108		161
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		170
112	=back	171	=back
113		172
114	=cut	173	=cut
115		174
116	BEGIN {	175	BEGIN {
117	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	177	my $msg = join "", @_;
119	utf8::encode $msg;
120		178
121	$msg .= "\n"	179	$msg .= "\n"
122	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
123		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
125	};	186	};
126	}	187	}
127		188
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		196
135	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	198	# within the Safe compartment.
137	for my $pkg (qw(	199	for my $pkg (qw(
138	cf::global cf::attachable	200	cf::global cf::attachable
…		…
147		209
148	$Event::DIED = sub {	210	$Event::DIED = sub {
149	warn "error in event callback: @_";	211	warn "error in event callback: @_";
150	};	212	};
151		213
152	my %ext_pkg;	214	#############################################################################
153	my @exts;
154	my @hook;
155		215
156	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
157		217
158	=over 4	218	=over 4
159		219
160	=cut	220	=item dumpval $ref
161		221
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
163		242
164	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
165		244
166	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
167		246
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
176		248
177	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
178		250
179	=cut	251	=cut
180		252
181	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		254
186	=item my $guard = cf::guard { BLOCK }	255	sub to_json ($) { $json_coder->encode ($_[0]) }
187		256	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		257
208	=item cf::lock_wait $string	258	=item cf::lock_wait $string
209		259
210	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
211		261
212	=item my $lock = cf::lock_acquire $string	262	=item my $lock = cf::lock_acquire $string
213		263
214	Wait until the given lock is available and then acquires it and returns	264	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	265	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	266	for example when the coroutine gets canceled), the lock is automatically
217	returned.	267	returned.
218		268
219	Lock names should begin with a unique identifier (for example, find_map	269	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
221		275
222	=cut	276	=cut
223		277
224	our %LOCK;	278	our %LOCK;
225		279
…		…
239	# wait, to be sure we are not locked	293	# wait, to be sure we are not locked
240	lock_wait $key;	294	lock_wait $key;
241		295
242	$LOCK{$key} = [];	296	$LOCK{$key} = [];
243		297
244	cf::guard {	298	Coro::guard {
245	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
247	}	301	}
248	}	302	}
249		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
		310	sub freeze_mainloop {
		311	return unless $TICK_WATCHER->is_active;
		312
		313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
		316	$TICK_WATCHER->stop;
		317	$guard
		318	}
		319
250	=item cf::async { BLOCK }	320	=item cf::async { BLOCK }
251		321
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	322	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
254		325
255	=cut	326	=cut
256		327
257	sub async(&) {	328	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		329
266	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
267		331
268	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
269	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
270	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
271		336
272	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
273	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
274	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
275	fast or be very important.	340	fast or be very important.
…		…
278		343
279	sub sync_job(&) {	344	sub sync_job(&) {
280	my ($job) = @_;	345	my ($job) = @_;
281		346
282	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
283	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
285		352
286	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	354	# (but this is cancel-safe)
288	local $FREEZE = 1;	355	my $freeze_guard = freeze_mainloop;
289		356
290	my $busy = 1;	357	my $busy = 1;
291	my @res;	358	my @res;
292		359
293	(Coro::async {	360	(async {
294	@res = eval { $job->() };	361	@res = eval { $job->() };
295	warn $@ if $@;	362	warn $@ if $@;
296	undef $busy;	363	undef $busy;
297	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
298		365
299	while ($busy) {	366	while ($busy) {
300	Coro::cede_notself;	367	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	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
303		376
304	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
305	} else {	378	} else {
306	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
307		380
308	$job->()	381	$job->()
309	}	382	}
310	}	383	}
311		384
312	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
313		386
314	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
316		389
317	=cut	390	=cut
318		391
319	sub coro(&) {	392	sub async_ext(&) {
320	my $cb = shift;	393	my $cb = shift;
321		394
322	my $coro = &cf::async ($cb);	395	my $coro = &Coro::async ($cb);
323		396
324	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
326	});	399	});
327	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
328		401
329	$coro	402	$coro
330	}	403	}
331		404
332	sub write_runtime {	405	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		406
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
336	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.
337		411
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		413
342	aio_fsync $fh	414	sub fork_call(&@) {
343	and return;	415	my ($cb, @args) = @_;
344		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) {
345	close $fh	423	close $fh2;
346	or return;
347		424
348	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
349	and return;	426	$res = Coro::Storable::thaw $res;
350		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
351	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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 });
352	}	574	}
353		575
354	=back	576	=back
355		577
356	=cut	578	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		579
478	#############################################################################	580	#############################################################################
479		581
480	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
481		583
…		…
483	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")
484	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
485		587
486	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>
487	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
488	crossfire+).	590	Crossfire TRT).
489		591
490	=over 4	592	=over 4
491		593
492	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
493		595
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	710	our @CB_MAP = ();
609		711
610	my %attachment;	712	my %attachment;
611		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
612	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
614		722
615	use sort 'stable';	723	use sort 'stable';
616		724
…		…
650	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
651		759
652	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
653	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
654	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
655	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
656		764
657	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
658	my $pkg = shift @arg;	766	my $pkg = shift @arg;
659		767
660	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
689	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
690	}	798	}
691		799
692	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
693	} else {	801	} else {
694	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
695	}	803	}
696		804
697	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
698	}	806	}
699		807
…		…
701	if (ref $_[0]) {	809	if (ref $_[0]) {
702	_object_attach @_;	810	_object_attach @_;
703	} else {	811	} else {
704	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
705	}	813	}
		814	_recalc_want;
706	};	815	};
707		816
708	# all those should be optimised	817	# all those should be optimised
709	sub cf::attachable::detach {	818	sub cf::attachable::detach {
710	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
713	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
714	reattach ($obj);	823	reattach ($obj);
715	} else {	824	} else {
716	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
717	}	826	}
		827	_recalc_want;
718	};	828	};
719		829
720	sub cf::attachable::attached {	830	sub cf::attachable::attached {
721	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
722		832
…		…
787	# object support	897	# object support
788		898
789	sub reattach {	899	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		904
793	my $registry = $obj->registry;	905	my $registry = $obj->registry;
794		906
795	@$registry = ();	907	@$registry = ();
796		908
…		…
843	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
844		956
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	961	close $fh;
850		962
851	if (@$objs) {	963	if (@$objs) {
852	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) {
853	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	969	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
859	}	971	}
860	} else {	972	} else {
861	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
893	or return;	1005	or return;
894	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
895	}	1007	}
896		1008
897	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
898	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
899	return ($data, $av);	1011	return ($data, $av);
900	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
901		1019
902	#############################################################################	1020	#############################################################################
903	# command handling &c	1021	# command handling &c
904		1022
905	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
918	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
919	}	1037	}
920		1038
921	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
922		1040
923	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.
924		1046
925	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
926	called.	1048	called.
927		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
928	=cut	1061	=cut
929		1062
930	sub register_extcmd {	1063	sub register_extcmd {
931	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
932		1065
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
937	}	1073	}
938		1074
939	cf::player->attach (	1075	cf::player->attach (
940	on_command => sub {	1076	on_command => sub {
941	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
950	cf::override;	1086	cf::override;
951	},	1087	},
952	on_extcmd => sub {	1088	on_extcmd => sub {
953	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
954		1090
955	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
956		1092
957	if (ref $msg) {	1093	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	1097	}
962	}	1098	}
963	} else {	1099	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		1102
967	cf::override;	1103	cf::override;
968	},	1104	},
969	);	1105	);
970		1106
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	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	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	warn "hm<$_[0] $_[1]>\n";#d#
		1424	$_[0]{hintmode} = $_[1] if @_ > 1;
		1425	$_[0]{hintmode}
		1426	}
		1427
		1428	=item $player->ext_reply ($msgid, %msg)
		1429
		1430	Sends an ext reply to the player.
		1431
		1432	=cut
		1433
		1434	sub ext_reply($$%) {
		1435	my ($self, $id, %msg) = @_;
		1436
		1437	$msg{msgid} = $id;
		1438	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1439	}
		1440
		1441	=item $player->ext_event ($type, %msg)
		1442
		1443	Sends an ext event to the client.
		1444
		1445	=cut
		1446
		1447	sub ext_event($$%) {
		1448	my ($self, $type, %msg) = @_;
		1449
		1450	$self->ns->ext_event ($type, %msg);
		1451	}
		1452
		1453	=head3 cf::region
		1454
		1455	=over 4
		1456
		1457	=cut
		1458
		1459	package cf::region;
		1460
		1461	=item cf::region::find_by_path $path
		1462
		1463	Tries to decuce the likely region for a map knowing only its path.
		1464
		1465	=cut
		1466
		1467	sub find_by_path($) {
978	my ($path) = @_;	1468	my ($path) = @_;
979		1469
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1470	my ($match, $specificity);
981	my $base = $1;
982	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";
985		1471
986	warn "loading '$path' into '$pkg'\n";	1472	for my $region (list) {
987		1473	if ($region->match && $path =~ $region->match) {
988	open my $fh, "<:utf8", $path	1474	($match, $specificity) = ($region, $region->specificity)
989	or die "$path: $!";	1475	if $region->specificity > $specificity;
990		1476	}
991	my $source =
992	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })
995	. "\n};\n1";
996
997	eval $source
998	or die $@ ? "$path: $@\n"
999	: "extension disabled.\n";
1000
1001	push @exts, $pkg;
1002	$ext_pkg{$base} = $pkg;
1003
1004	# no strict 'refs';
1005	# @{"$pkg\::ISA"} = ext::;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	1477	}
1020		1478
1021	# remove commands	1479	$match
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}
1046
1047	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;
1050	eval {
1051	load_extension $ext;
1052	1
1053	} or warn "$ext not loaded: $@";
1054	}
1055	}
1056
1057	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094
1095	=head2 CORE EXTENSIONS
1096
1097	Functions and methods that extend core crossfire objects.
1098
1099	=head3 cf::player
1100
1101	=over 4
1102
1103	=item cf::player::exists $login
1104
1105	Returns true when the given account exists.
1106
1107	=cut
1108
1109	sub cf::player::exists($) {
1110	cf::player::find $_[0]
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1112	}
1113
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)
1115
1116	Sends an ext reply to the player.
1117
1118	=cut
1119
1120	sub cf::player::ext_reply($$$%) {
1121	my ($self, $id, %msg) = @_;
1122
1123	$msg{msgid} = $id;
1124
1125	$self->send ("ext " . to_json \%msg);
1126	}	1480	}
1127		1481
1128	=back	1482	=back
1129
1130		1483
1131	=head3 cf::map	1484	=head3 cf::map
1132		1485
1133	=over 4	1486	=over 4
1134		1487
…		…
1137	package cf::map;	1490	package cf::map;
1138		1491
1139	use Fcntl;	1492	use Fcntl;
1140	use Coro::AIO;	1493	use Coro::AIO;
1141		1494
		1495	use overload
		1496	'""' => \&as_string,
		1497	fallback => 1;
		1498
1142	our $MAX_RESET = 7200;	1499	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1500	our $DEFAULT_RESET = 3000;
1144		1501
1145	sub generate_random_map {	1502	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1503	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1504	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1505	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1506	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1507	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1508	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1509	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1510	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1511	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1512	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1513	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1514	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1515	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1516	(cf::region::find $rmp->{region}), $rmp->{custom}
		1517	)
		1518	}
		1519
		1520	=item cf::map->register ($regex, $prio)
		1521
		1522	Register a handler for the map path matching the given regex at the
		1523	givne priority (higher is better, built-in handlers have priority 0, the
		1524	default).
		1525
		1526	=cut
		1527
		1528	sub register {
		1529	my (undef, $regex, $prio) = @_;
		1530	my $pkg = caller;
		1531
		1532	no strict;
		1533	push @{"$pkg\::ISA"}, __PACKAGE__;
		1534
		1535	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1536	}
		1537
		1538	# also paths starting with '/'
		1539	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1540
		1541	sub thawer_merge {
		1542	my ($self, $merge) = @_;
		1543
		1544	# we have to keep some variables in memory intact
		1545	local $self->{path};
		1546	local $self->{load_path};
		1547
		1548	$self->SUPER::thawer_merge ($merge);
		1549	}
		1550
		1551	sub normalise {
		1552	my ($path, $base) = @_;
		1553
		1554	$path = "$path"; # make sure its a string
		1555
		1556	$path =~ s/\.map$//;
		1557
		1558	# map plan:
		1559	#
		1560	# /! non-realised random map exit (special hack!)
		1561	# {... are special paths that are not being touched
		1562	# ?xxx/... are special absolute paths
		1563	# ?random/... random maps
		1564	# /... normal maps
		1565	# ~user/... per-player map of a specific user
		1566
		1567	$path =~ s/$PATH_SEP/\//go;
		1568
		1569	# treat it as relative path if it starts with
		1570	# something that looks reasonable
		1571	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1572	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1573
		1574	$base =~ s{[^/]+/?$}{};
		1575	$path = "$base/$path";
		1576	}
		1577
		1578	for ($path) {
		1579	redo if s{//}{/};
		1580	redo if s{/\.?/}{/};
		1581	redo if s{/[^/]+/\.\./}{/};
		1582	}
		1583
		1584	$path
		1585	}
		1586
		1587	sub new_from_path {
		1588	my (undef, $path, $base) = @_;
		1589
		1590	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1591
		1592	$path = normalise $path, $base;
		1593
		1594	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1595	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1596	my $self = bless cf::map::new, $pkg;
		1597	$self->{path} = $path; $self->path ($path);
		1598	$self->init; # pass $1 etc.
		1599	return $self;
		1600	}
		1601	}
		1602
		1603	Carp::carp "unable to resolve path '$path' (base '$base').";
		1604	()
		1605	}
		1606
		1607	sub init {
		1608	my ($self) = @_;
		1609
		1610	$self
		1611	}
		1612
		1613	sub as_string {
		1614	my ($self) = @_;
		1615
		1616	"$self->{path}"
		1617	}
		1618
		1619	# the displayed name, this is a one way mapping
		1620	sub visible_name {
		1621	&as_string
		1622	}
		1623
		1624	# the original (read-only) location
		1625	sub load_path {
		1626	my ($self) = @_;
		1627
		1628	"$MAPDIR/$self->{path}.map"
		1629	}
		1630
		1631	# the temporary/swap location
		1632	sub save_path {
		1633	my ($self) = @_;
		1634
		1635	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1636	"$TMPDIR/$path.map"
		1637	}
		1638
		1639	# the unique path, undef == no special unique path
		1640	sub uniq_path {
		1641	my ($self) = @_;
		1642
		1643	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1644	"$UNIQUEDIR/$path"
1162	}	1645	}
1163		1646
1164	# and all this just because we cannot iterate over	1647	# and all this just because we cannot iterate over
1165	# all maps in C++...	1648	# all maps in C++...
1166	sub change_all_map_light {	1649	sub change_all_map_light {
…		…
1168		1651
1169	$_->change_map_light ($change)	1652	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1653	for grep $_->outdoor, values %cf::MAP;
1171	}	1654	}
1172		1655
		1656	sub decay_objects {
		1657	my ($self) = @_;
		1658
		1659	return if $self->{deny_reset};
		1660
		1661	$self->do_decay_objects;
		1662	}
		1663
		1664	sub unlink_save {
		1665	my ($self) = @_;
		1666
		1667	utf8::encode (my $save = $self->save_path);
		1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1669	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1670	}
		1671
1173	sub try_load_header($) {	1672	sub load_header_from($) {
1174	my ($path) = @_;	1673	my ($self, $path) = @_;
1175		1674
1176	utf8::encode $path;	1675	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1676	#aio_open $path, O_RDONLY, 0
		1677	# or return;
		1678
		1679	$self->_load_header ($path)
1178	or return;	1680	or return;
1179		1681
1180	my $map = cf::map::new	1682	$self->{load_path} = $path;
		1683
		1684	1
		1685	}
		1686
		1687	sub load_header_orig {
		1688	my ($self) = @_;
		1689
		1690	$self->load_header_from ($self->load_path)
		1691	}
		1692
		1693	sub load_header_temp {
		1694	my ($self) = @_;
		1695
		1696	$self->load_header_from ($self->save_path)
		1697	}
		1698
		1699	sub prepare_temp {
		1700	my ($self) = @_;
		1701
		1702	$self->last_access ((delete $self->{last_access})
		1703	|| $cf::RUNTIME); #d#
		1704	# safety
		1705	$self->{instantiate_time} = $cf::RUNTIME
		1706	if $self->{instantiate_time} > $cf::RUNTIME;
		1707	}
		1708
		1709	sub prepare_orig {
		1710	my ($self) = @_;
		1711
		1712	$self->{load_original} = 1;
		1713	$self->{instantiate_time} = $cf::RUNTIME;
		1714	$self->last_access ($cf::RUNTIME);
		1715	$self->instantiate;
		1716	}
		1717
		1718	sub load_header {
		1719	my ($self) = @_;
		1720
		1721	if ($self->load_header_temp) {
		1722	$self->prepare_temp;
		1723	} else {
		1724	$self->load_header_orig
1181	or return;	1725	or return;
		1726	$self->prepare_orig;
		1727	}
1182		1728
1183	$map->load_header ($path)	1729	$self->{deny_reset} = 1
1184	or return;	1730	if $self->no_reset;
1185		1731
1186	$map->{load_path} = $path;	1732	$self->default_region (cf::region::find_by_path $self->{path})
		1733	unless $self->default_region;
1187		1734
1188	$map	1735	1
1189	}	1736	}
1190		1737
1191	sub find_map;	1738	sub find;
1192	sub find_map {	1739	sub find {
1193	my ($path, $origin) = @_;	1740	my ($path, $origin) = @_;
1194		1741
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1742	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1743
1200	cf::lock_wait "map_find:$key";	1744	cf::lock_wait "map_find:$path";
1201		1745
1202	$cf::MAP{$key} || do {	1746	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1747	my $guard = cf::lock_acquire "map_find:$path";
1204		1748	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1749	or return;
1220		1750
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1751	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1752
1234	if ($map->should_reset) {	1753	$map->load_header
		1754	or return;
		1755
		1756	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1757	# doing this can freeze the server in a sync job, obviously
		1758	#$cf::WAIT_FOR_TICK->wait;
1235	$map->reset;	1759	$map->reset;
1236	undef $guard;	1760	undef $guard;
1237	$map = find_map $path	1761	return find $path;
1238	or return;
1239	}	1762	}
1240		1763
1241	$cf::MAP{$key} = $map	1764	$cf::MAP{$path} = $map
1242	}	1765	}
1243	}	1766	}
		1767
		1768	sub pre_load { }
		1769	sub post_load { }
1244		1770
1245	sub load {	1771	sub load {
1246	my ($self) = @_;	1772	my ($self) = @_;
1247		1773
		1774	local $self->{deny_reset} = 1; # loading can take a long time
		1775
1248	my $path = $self->{path};	1776	my $path = $self->{path};
		1777
		1778	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1779	my $guard = cf::lock_acquire "map_load:$path";
1250		1780
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1781	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1782
1253	$self->in_memory (cf::MAP_LOADING);	1783	$self->in_memory (cf::MAP_LOADING);
1254		1784
1255	$self->alloc;	1785	$self->alloc;
		1786
		1787	$self->pre_load;
		1788	Coro::cede;
		1789
1256	$self->load_objects ($self->{load_path}, 1)	1790	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1791	or return;
1258		1792
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1793	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1794	if delete $self->{load_original};
1261		1795
1262	if (my $uniq = $path->uniq_path) {	1796	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1797	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1798	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1799	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1800	$self->_load_objects ($uniq, 0);
1267	}	1801	}
1268	}	1802	}
1269		1803
		1804	Coro::cede;
1270	# now do the right thing for maps	1805	# now do the right thing for maps
1271	$self->link_multipart_objects;	1806	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1807	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	1808	unless $self->difficulty;
		1809	Coro::cede;
		1810
		1811	unless ($self->{deny_activate}) {
		1812	$self->decay_objects;
		1813	$self->fix_auto_apply;
		1814	$self->update_buttons;
		1815	Coro::cede;
		1816	$self->set_darkness_map;
		1817	Coro::cede;
1283	$self->activate;	1818	$self->activate;
1284	}	1819	}
1285		1820
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1821	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}	1822	}
1288		1823
1289	sub load_map_sync {	1824	$self->post_load;
		1825	}
		1826
		1827	sub customise_for {
		1828	my ($self, $ob) = @_;
		1829
		1830	return find "~" . $ob->name . "/" . $self->{path}
		1831	if $self->per_player;
		1832
		1833	# return find "?party/" . $ob->name . "/" . $self->{path}
		1834	# if $self->per_party;
		1835
		1836	$self
		1837	}
		1838
		1839	# find and load all maps in the 3x3 area around a map
		1840	sub load_diag {
		1841	my ($map) = @_;
		1842
		1843	my @diag; # diagonal neighbours
		1844
		1845	for (0 .. 3) {
		1846	my $neigh = $map->tile_path ($_)
		1847	or next;
		1848	$neigh = find $neigh, $map
		1849	or next;
		1850	$neigh->load;
		1851
		1852	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1853	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1854	}
		1855
		1856	for (@diag) {
		1857	my $neigh = find @$_
		1858	or next;
		1859	$neigh->load;
		1860	}
		1861	}
		1862
		1863	sub find_sync {
1290	my ($path, $origin) = @_;	1864	my ($path, $origin) = @_;
1291		1865
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1866	cf::sync_job { find $path, $origin }
		1867	}
1293		1868
1294	cf::sync_job {	1869	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1870	my ($map) = @_;
1296	or return;	1871
		1872	cf::sync_job { $map->load };
		1873	}
		1874
		1875	our %MAP_PREFETCH;
		1876	our $MAP_PREFETCHER = undef;
		1877
		1878	sub find_async {
		1879	my ($path, $origin) = @_;
		1880
		1881	$path = normalise $path, $origin && $origin->{path};
		1882
		1883	if (my $map = $cf::MAP{$path}) {
		1884	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1885	}
		1886
		1887	undef $MAP_PREFETCH{$path};
		1888	$MAP_PREFETCHER ||= cf::async {
		1889	while (%MAP_PREFETCH) {
		1890	for my $path (keys %MAP_PREFETCH) {
		1891	my $map = find $path
		1892	or next;
1297	$map->load;	1893	$map->load;
1298	$map	1894
		1895	delete $MAP_PREFETCH{$path};
		1896	}
		1897	}
		1898	undef $MAP_PREFETCHER;
1299	}	1899	};
		1900	$MAP_PREFETCHER->prio (6);
		1901
		1902	()
1300	}	1903	}
1301		1904
1302	sub save {	1905	sub save {
1303	my ($self) = @_;	1906	my ($self) = @_;
1304		1907
		1908	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1909
1305	$self->{last_save} = $cf::RUNTIME;	1910	$self->{last_save} = $cf::RUNTIME;
1306		1911
1307	return unless $self->dirty;	1912	return unless $self->dirty;
1308		1913
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1914	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1915	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1916
1312	$self->{load_path} = $save;	1917	$self->{load_path} = $save;
1313		1918
1314	return if $self->{deny_save};	1919	return if $self->{deny_save};
1315		1920
		1921	local $self->{last_access} = $self->last_access;#d#
		1922
		1923	cf::async {
		1924	$_->contr->save for $self->players;
		1925	};
		1926
1316	if ($uniq) {	1927	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1928	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1929	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1930	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1931	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1932	}
1322	}	1933	}
1323		1934
1324	sub swap_out {	1935	sub swap_out {
1325	my ($self) = @_;	1936	my ($self) = @_;
		1937
		1938	# save first because save cedes
		1939	$self->save;
		1940
		1941	my $lock = cf::lock_acquire "map_data:" . $self->path;
1326		1942
1327	return if $self->players;	1943	return if $self->players;
1328	return if $self->in_memory != cf::MAP_IN_MEMORY;	1944	return if $self->in_memory != cf::MAP_IN_MEMORY;
1329	return if $self->{deny_save};	1945	return if $self->{deny_save};
1330		1946
1331	$self->save;
1332	$self->clear;	1947	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);	1948	$self->in_memory (cf::MAP_SWAPPED);
1334	}	1949	}
1335		1950
1336	sub reset_at {	1951	sub reset_at {
1337	my ($self) = @_;	1952	my ($self) = @_;
1338		1953
1339	# TODO: safety, remove and allow resettable per-player maps	1954	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1955	return 1e99 if $self->{deny_reset};
1342		1956
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1957	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1958	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1959
…		…
1350	my ($self) = @_;	1964	my ($self) = @_;
1351		1965
1352	$self->reset_at <= $cf::RUNTIME	1966	$self->reset_at <= $cf::RUNTIME
1353	}	1967	}
1354		1968
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1969	sub reset {
1377	my ($self) = @_;	1970	my ($self) = @_;
1378		1971
		1972	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1973
1379	return if $self->players;	1974	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		1975
1382	warn "resetting map ", $self->path;#d#	1976	warn "resetting map ", $self->path;
		1977
		1978	$self->in_memory (cf::MAP_SWAPPED);
		1979
		1980	# need to save uniques path
		1981	unless ($self->{deny_save}) {
		1982	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1983
		1984	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1985	if $uniq;
		1986	}
1383		1987
1384	delete $cf::MAP{$self->path};	1988	delete $cf::MAP{$self->path};
		1989
		1990	$self->clear;
1385		1991
1386	$_->clear_links_to ($self) for values %cf::MAP;	1992	$_->clear_links_to ($self) for values %cf::MAP;
1387		1993
1388	$self->unlink_save;	1994	$self->unlink_save;
1389	$self->destroy;	1995	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	1998	my $nuke_counter = "aaaa";
1393		1999
1394	sub nuke {	2000	sub nuke {
1395	my ($self) = @_;	2001	my ($self) = @_;
1396		2002
		2003	delete $cf::MAP{$self->path};
		2004
		2005	$self->unlink_save;
		2006
		2007	bless $self, "cf::map";
		2008	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2009	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2010	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2011	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2012
		2013	$cf::MAP{$self->path} = $self;
		2014
1400	$self->reset; # polite request, might not happen	2015	$self->reset; # polite request, might not happen
1401	}	2016	}
1402		2017
1403	sub customise_for {	2018	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2019
1406	if ($map->per_player) {	2020	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2021	maps. May block.
		2022
		2023	=cut
		2024
		2025	sub tmp_maps() {
1408	}	2026	[
1409		2027	map {
1410	$map	2028	utf8::decode $_;
		2029	/\.map$/
		2030	? normalise $_
		2031	: ()
		2032	} @{ aio_readdir $TMPDIR or [] }
		2033	]
1411	}	2034	}
1412		2035
1413	sub emergency_save {	2036	=item $maps = cf::map::random_maps
1414	local $cf::FREEZE = 1;
1415		2037
1416	warn "enter emergency map save\n";	2038	Returns an arrayref with all map paths of currently instantiated and saved
		2039	random maps. May block.
1417		2040
1418	cf::sync_job {	2041	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2042
1423	warn "end emergency map save\n";	2043	sub random_maps() {
		2044	[
		2045	map {
		2046	utf8::decode $_;
		2047	/\.map$/
		2048	? normalise "?random/$_"
		2049	: ()
		2050	} @{ aio_readdir $RANDOMDIR or [] }
		2051	]
		2052	}
		2053
		2054	=item cf::map::unique_maps
		2055
		2056	Returns an arrayref of paths of all shared maps that have
		2057	instantiated unique items. May block.
		2058
		2059	=cut
		2060
		2061	sub unique_maps() {
		2062	[
		2063	map {
		2064	utf8::decode $_;
		2065	/\.map$/
		2066	? normalise $_
		2067	: ()
		2068	} @{ aio_readdir $UNIQUEDIR or [] }
		2069	]
1424	}	2070	}
1425		2071
1426	package cf;	2072	package cf;
1427		2073
1428	=back	2074	=back
1429		2075
		2076	=head3 cf::object
		2077
		2078	=cut
		2079
		2080	package cf::object;
		2081
		2082	=over 4
		2083
		2084	=item $ob->inv_recursive
		2085
		2086	Returns the inventory of the object _and_ their inventories, recursively.
		2087
		2088	=cut
		2089
		2090	sub inv_recursive_;
		2091	sub inv_recursive_ {
		2092	map { $_, inv_recursive_ $_->inv } @_
		2093	}
		2094
		2095	sub inv_recursive {
		2096	inv_recursive_ inv $_[0]
		2097	}
		2098
		2099	package cf;
		2100
		2101	=back
1430		2102
1431	=head3 cf::object::player	2103	=head3 cf::object::player
1432		2104
1433	=over 4	2105	=over 4
1434		2106
…		…
1448		2120
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2121	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2122
1451	if ($self->{record_replies}) {	2123	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2124	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2125
1453	} else {	2126	} else {
		2127	my $pl = $self->contr;
		2128
		2129	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2130	my $diag = $pl->{npc_dialog};
		2131	$diag->{pl}->ext_reply (
		2132	$diag->{id},
		2133	msgtype => "reply",
		2134	msg => $diag->{pl}->expand_cfpod ($msg),
		2135	add_topics => []
		2136	);
		2137
		2138	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2139	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2140	$self->message ($msg, $flags);
		2141	}
1456	}	2142	}
1457	}	2143	}
1458		2144
1459	=item $player_object->may ("access")	2145	=item $player_object->may ("access")
1460		2146
…		…
1474		2160
1475	=item $player_object->enter_link	2161	=item $player_object->enter_link
1476		2162
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2163	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2164
1479	The player should be reaosnably safe there for short amounts of time. You	2165	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	2166	I<MUST> call C<leave_link> as soon as possible, though.
1481		2167
		2168	Will never block.
		2169
1482	=item $player_object->leave_link ($map, $x, $y)	2170	=item $player_object->leave_link ($map, $x, $y)
1483		2171
1484	Moves the player out of the specila link map onto the given map. If the	2172	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2173	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2174	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2175	fails, to the emergency map position.
1488		2176
1489	Might block.	2177	Might block.
1490		2178
1491	=cut	2179	=cut
		2180
		2181	sub link_map {
		2182	unless ($LINK_MAP) {
		2183	$LINK_MAP = cf::map::find "{link}"
		2184	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2185	$LINK_MAP->load;
		2186	}
		2187
		2188	$LINK_MAP
		2189	}
1492		2190
1493	sub cf::object::player::enter_link {	2191	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2192	my ($self) = @_;
1495		2193
1496	$self->deactivate_recursive;	2194	$self->deactivate_recursive;
1497		2195
1498	return if $self->map == $LINK_MAP;	2196	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2197
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2198	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2199	if $self->map && $self->map->{path} ne "{link}";
1502		2200
1503	$self->enter_map ($LINK_MAP, 20, 20);	2201	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2202	}
1505		2203
1506	sub cf::object::player::leave_link {	2204	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2205	my ($self, $map, $x, $y) = @_;
		2206
		2207	return unless $self->contr->active;
1508		2208
1509	my $link_pos = delete $self->{_link_pos};	2209	my $link_pos = delete $self->{_link_pos};
1510		2210
1511	unless ($map) {	2211	unless ($map) {
1512	# restore original map position	2212	# restore original map position
1513	($map, $x, $y) = @{ $link_pos || [] };	2213	($map, $x, $y) = @{ $link_pos || [] };
1514	$map = cf::map::find_map $map;	2214	$map = cf::map::find $map;
1515		2215
1516	unless ($map) {	2216	unless ($map) {
1517	($map, $x, $y) = @$EMERGENCY_POSITION;	2217	($map, $x, $y) = @$EMERGENCY_POSITION;
1518	$map = cf::map::find_map $map	2218	$map = cf::map::find $map
1519	or die "FATAL: cannot load emergency map\n";	2219	or die "FATAL: cannot load emergency map\n";
1520	}	2220	}
1521	}	2221	}
1522		2222
1523	($x, $y) = (-1, -1)	2223	($x, $y) = (-1, -1)
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2226	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2227	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2228	if $x <=0 && $y <= 0;
1529		2229
1530	$map->load;	2230	$map->load;
		2231	$map->load_diag;
1531		2232
		2233	return unless $self->contr->active;
1532	$self->activate_recursive;	2234	$self->activate_recursive;
		2235
		2236	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2237	$self->enter_map ($map, $x, $y);
1534	}	2238	}
1535		2239
1536	cf::player->attach (
1537	on_logout => sub {
1538	my ($pl) = @_;
1539
1540	# abort map switching before logout
1541	if ($pl->ob->{_link_pos}) {
1542	cf::sync_job {
1543	$pl->ob->leave_link
1544	};
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto_map ($path, $x, $y)	2240	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1565		2241
1566	=cut	2242	Moves the player to the given map-path and coordinates by first freezing
		2243	her, loading and preparing them map, calling the provided $check callback
		2244	that has to return the map if sucecssful, and then unfreezes the player on
		2245	the new (success) or old (failed) map position.
1567		2246
		2247	=cut
		2248
		2249	our $GOTOGEN;
		2250
1568	sub cf::object::player::goto_map {	2251	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2252	my ($self, $path, $x, $y, $check) = @_;
		2253
		2254	# do generation counting so two concurrent goto's will be executed in-order
		2255	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2256
1571	$self->enter_link;	2257	$self->enter_link;
1572		2258
1573	(cf::async {	2259	(async {
1574	$path = new cf::path $path;	2260	my $map = eval {
1575
1576	my $map = cf::map::find_map $path->as_string;	2261	my $map = cf::map::find $path;
		2262
		2263	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2264	$map = $map->customise_for ($self);
1578		2265	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2266	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2267	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2268	}
1583		2269
		2270	$map
		2271	};
		2272
		2273	if ($@) {
		2274	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2275	LOG llevError | logBacktrace, Carp::longmess $@;
		2276	}
		2277
		2278	if ($gen == $self->{_goto_generation}) {
		2279	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2280	$self->leave_link ($map, $x, $y);
		2281	}
1585	})->prio (1);	2282	})->prio (1);
1586	}	2283	}
1587		2284
1588	=item $player_object->enter_exit ($exit_object)	2285	=item $player_object->enter_exit ($exit_object)
1589		2286
…		…
1591		2288
1592	sub parse_random_map_params {	2289	sub parse_random_map_params {
1593	my ($spec) = @_;	2290	my ($spec) = @_;
1594		2291
1595	my $rmp = { # defaults	2292	my $rmp = { # defaults
1596	xsize => 10,	2293	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2294	ysize => (cf::rndm 15, 40),
		2295	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2296	#layout => string,
1598	};	2297	};
1599		2298
1600	for (split /\n/, $spec) {	2299	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2300	my ($k, $v) = split /\s+/, $_, 2;
1602		2301
…		…
1606	$rmp	2305	$rmp
1607	}	2306	}
1608		2307
1609	sub prepare_random_map {	2308	sub prepare_random_map {
1610	my ($exit) = @_;	2309	my ($exit) = @_;
		2310
		2311	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2312
1612	# all this does is basically replace the /! path by	2313	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2314	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2315	# that depends on the exit object
1615		2316
1616	my $rmp = parse_random_map_params $exit->msg;	2317	my $rmp = parse_random_map_params $exit->msg;
1617		2318
1618	if ($exit->map) {	2319	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2320	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2321	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2322	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2323	$rmp->{origin_y} = $exit->y;
1623	}	2324	}
1624		2325
1625	$rmp->{random_seed} ||= $exit->random_seed;	2326	$rmp->{random_seed} ||= $exit->random_seed;
1626		2327
1627	my $data = cf::to_json $rmp;	2328	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2329	my $md5 = Digest::MD5::md5_hex $data;
		2330	my $meta = "$RANDOMDIR/$md5.meta";
1629		2331
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2332	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2333	aio_write $fh, 0, (length $data), $data, 0;
		2334	undef $fh;
		2335	aio_rename "$meta~", $meta;
1632		2336
1633	$exit->slaying ("?random/$md5");	2337	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2338	$exit->msg (undef);
1635	}	2339	}
1636	}	2340	}
…		…
1638	sub cf::object::player::enter_exit {	2342	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2343	my ($self, $exit) = @_;
1640		2344
1641	return unless $self->type == cf::PLAYER;	2345	return unless $self->type == cf::PLAYER;
1642		2346
		2347	if ($exit->slaying eq "/!") {
		2348	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2349	# the problem is that $exit might not survive long enough
		2350	# so it needs to be done right now, right here
		2351	cf::sync_job { prepare_random_map $exit };
		2352	}
		2353
		2354	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2355	my $hp = $exit->stats->hp;
		2356	my $sp = $exit->stats->sp;
		2357
1643	$self->enter_link;	2358	$self->enter_link;
1644		2359
1645	(cf::async {	2360	(async {
		2361	$self->deactivate_recursive; # just to be sure
1646	unless (eval {	2362	unless (eval {
1647	prepare_random_map $exit	2363	$self->goto ($slaying, $hp, $sp);
1648	if $exit->slaying eq "/!";
1649
1650	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1651	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1652		2364
1653	1;	2365	1;
1654	}) {	2366	}) {
1655	$self->message ("Something went wrong deep within the crossfire server. "	2367	$self->message ("Something went wrong deep within the crossfire server. "
1656	. "I'll try to bring you back to the map you were before. "	2368	. "I'll try to bring you back to the map you were before. "
1657	. "Please report this to the dungeon master",	2369	. "Please report this to the dungeon master!",
1658	cf::NDI_UNIQUE | cf::NDI_RED);	2370	cf::NDI_UNIQUE | cf::NDI_RED);
1659		2371
1660	warn "ERROR in enter_exit: $@";	2372	warn "ERROR in enter_exit: $@";
1661	$self->leave_link;	2373	$self->leave_link;
1662	}	2374	}
1663	})->prio (1);	2375	})->prio (1);
…		…
1676		2388
1677	sub cf::client::send_drawinfo {	2389	sub cf::client::send_drawinfo {
1678	my ($self, $text, $flags) = @_;	2390	my ($self, $text, $flags) = @_;
1679		2391
1680	utf8::encode $text;	2392	utf8::encode $text;
1681	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2393	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1682	}	2394	}
1683		2395
		2396	=item $client->send_msg ($color, $type, $msg, [extra...])
		2397
		2398	Send a drawinfo or msg packet to the client, formatting the msg for the
		2399	client if neccessary. C<$type> should be a string identifying the type of
		2400	the message, with C<log> being the default. If C<$color> is negative, suppress
		2401	the message unless the client supports the msg packet.
		2402
		2403	=cut
		2404
		2405	sub cf::client::send_msg {
		2406	my ($self, $color, $type, $msg, @extra) = @_;
		2407
		2408	$msg = $self->pl->expand_cfpod ($msg);
		2409
		2410	if ($self->can_msg) {
		2411	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2412	} else {
		2413	# replace some tags by gcfclient-compatible ones
		2414	for ($msg) {
		2415	1 while
		2416	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2417	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2418	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2419	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2420	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2421	}
		2422
		2423	if ($color >= 0) {
		2424	if (0 && $msg =~ /\[/) {
		2425	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2426	} else {
		2427	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2428	$self->send_packet ("drawinfo $color $msg")
		2429	}
		2430	}
		2431	}
		2432	}
		2433
		2434	=item $client->ext_event ($type, %msg)
		2435
		2436	Sends an ext event to the client.
		2437
		2438	=cut
		2439
		2440	sub cf::client::ext_event($$%) {
		2441	my ($self, $type, %msg) = @_;
		2442
		2443	$msg{msgtype} = "event_$type";
		2444	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2445	}
1684		2446
1685	=item $success = $client->query ($flags, "text", \&cb)	2447	=item $success = $client->query ($flags, "text", \&cb)
1686		2448
1687	Queues a query to the client, calling the given callback with	2449	Queues a query to the client, calling the given callback with
1688	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2450	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1689	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2451	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1690		2452
1691	Queries can fail, so check the return code. Or don't, as queries will become	2453	Queries can fail, so check the return code. Or don't, as queries will
1692	reliable at some point in the future.	2454	become reliable at some point in the future.
1693		2455
1694	=cut	2456	=cut
1695		2457
1696	sub cf::client::query {	2458	sub cf::client::query {
1697	my ($self, $flags, $text, $cb) = @_;	2459	my ($self, $flags, $text, $cb) = @_;
…		…
1705	utf8::encode $text;	2467	utf8::encode $text;
1706	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2468	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1707		2469
1708	$self->send_packet ($self->{query_queue}[0][0])	2470	$self->send_packet ($self->{query_queue}[0][0])
1709	if @{ $self->{query_queue} } == 1;	2471	if @{ $self->{query_queue} } == 1;
		2472
		2473	1
1710	}	2474	}
1711		2475
1712	cf::client->attach (	2476	cf::client->attach (
		2477	on_connect => sub {
		2478	my ($ns) = @_;
		2479
		2480	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2481	},
1713	on_reply => sub {	2482	on_reply => sub {
1714	my ($ns, $msg) = @_;	2483	my ($ns, $msg) = @_;
1715		2484
1716	# this weird shuffling is so that direct followup queries	2485	# this weird shuffling is so that direct followup queries
1717	# get handled first	2486	# get handled first
1718	my $queue = delete $ns->{query_queue}	2487	my $queue = delete $ns->{query_queue}
1719	or return; # be conservative, not sure how that can happen, but we saw a crash here	2488	or return; # be conservative, not sure how that can happen, but we saw a crash here
1720		2489
1721	(shift @$queue)->[1]->($msg);	2490	(shift @$queue)->[1]->($msg);
		2491	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1722		2492
1723	push @{ $ns->{query_queue} }, @$queue;	2493	push @{ $ns->{query_queue} }, @$queue;
1724		2494
1725	if (@{ $ns->{query_queue} } == @$queue) {	2495	if (@{ $ns->{query_queue} } == @$queue) {
1726	if (@$queue) {	2496	if (@$queue) {
…		…
1728	} else {	2498	} else {
1729	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2499	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1730	}	2500	}
1731	}	2501	}
1732	},	2502	},
		2503	on_exticmd => sub {
		2504	my ($ns, $buf) = @_;
		2505
		2506	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2507
		2508	if (ref $msg) {
		2509	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2510	if (my %reply = $cb->($ns, $msg)) {
		2511	$reply{msgid} = $msg->{msgid};
		2512	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2513	}
		2514	}
		2515	} else {
		2516	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2517	}
		2518
		2519	cf::override;
		2520	},
1733	);	2521	);
1734		2522
1735	=item $client->coro (\&cb)	2523	=item $client->async (\&cb)
1736		2524
1737	Create a new coroutine, running the specified callback. The coroutine will	2525	Create a new coroutine, running the specified callback. The coroutine will
1738	be automatically cancelled when the client gets destroyed (e.g. on logout,	2526	be automatically cancelled when the client gets destroyed (e.g. on logout,
1739	or loss of connection).	2527	or loss of connection).
1740		2528
1741	=cut	2529	=cut
1742		2530
1743	sub cf::client::coro {	2531	sub cf::client::async {
1744	my ($self, $cb) = @_;	2532	my ($self, $cb) = @_;
1745		2533
1746	my $coro = &cf::async ($cb);	2534	my $coro = &Coro::async ($cb);
1747		2535
1748	$coro->on_destroy (sub {	2536	$coro->on_destroy (sub {
1749	delete $self->{_coro}{$coro+0};	2537	delete $self->{_coro}{$coro+0};
1750	});	2538	});
1751		2539
…		…
1784		2572
1785	# here we export the classes and methods available to script code	2573	# here we export the classes and methods available to script code
1786		2574
1787	=pod	2575	=pod
1788		2576
1789	The following fucntions and emthods are available within a safe environment:	2577	The following functions and methods are available within a safe environment:
1790		2578
1791	cf::object contr pay_amount pay_player map	2579	cf::object contr pay_amount pay_player map
1792	cf::object::player player	2580	cf::object::player player
1793	cf::player peaceful	2581	cf::player peaceful
1794	cf::map trigger	2582	cf::map trigger
…		…
1875	=back	2663	=back
1876		2664
1877	=cut	2665	=cut
1878		2666
1879	#############################################################################	2667	#############################################################################
		2668	# the server's init and main functions
1880		2669
1881	=head2 EXTENSION DATABASE SUPPORT	2670	sub load_facedata($) {
		2671	my ($path) = @_;
1882		2672
1883	Crossfire maintains a very simple database for extension use. It can	2673	warn "loading facedata from $path\n";
1884	currently store anything that can be serialised using Storable, which
1885	excludes objects.
1886		2674
1887	The parameter C<$family> should best start with the name of the extension	2675	my $facedata;
1888	using it, it should be unique.	2676	0 < aio_load $path, $facedata
		2677	or die "$path: $!";
1889		2678
1890	=over 4	2679	$facedata = Coro::Storable::thaw $facedata;
1891		2680
1892	=item $hashref = cf::db_get $family	2681	$facedata->{version} == 2
		2682	or cf::cleanup "$path: version mismatch, cannot proceed.";
1893		2683
1894	Return a hashref for use by the extension C<$family>, which can be
1895	modified. After modifications, you have to call C<cf::db_dirty> or
1896	C<cf::db_sync>.
1897
1898	=item $value = cf::db_get $family => $key
1899
1900	Returns a single value from the database
1901
1902	=item cf::db_put $family => $hashref
1903
1904	Stores the given family hashref into the database. Updates are delayed, if
1905	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1906
1907	=item cf::db_put $family => $key => $value
1908
1909	Stores the given C<$value> in the family hash. Updates are delayed, if you
1910	want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_dirty
1913
1914	Marks the database as dirty, to be updated at a later time.
1915
1916	=item cf::db_sync
1917
1918	Immediately write the database to disk I<if it is dirty>.
1919
1920	=cut
1921
1922	our $DB;
1923
1924	{
1925	my $path = cf::localdir . "/database.pst";
1926
1927	sub db_load() {
1928	$DB = stat $path ? Storable::retrieve $path : { };
1929	}	2684	{
		2685	my $faces = $facedata->{faceinfo};
1930		2686
1931	my $pid;	2687	while (my ($face, $info) = each %$faces) {
1932		2688	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1933	sub db_save() {	2689	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1934	waitpid $pid, 0 if $pid;	2690	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1935	if (0 == ($pid = fork)) {	2691	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1936	$DB->{_meta}{version} = 1;	2692	Coro::cede;
1937	Storable::nstore $DB, "$path~";
1938	rename "$path~", $path;
1939	cf::_exit 0 if defined $pid;
1940	}
1941	}
1942
1943	my $dirty;
1944
1945	sub db_sync() {
1946	db_save if $dirty;
1947	undef $dirty;
1948	}
1949
1950	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1951	db_sync;
1952	});
1953
1954	sub db_dirty() {
1955	$dirty = 1;
1956	$idle->start;
1957	}
1958
1959	sub db_get($;$) {
1960	@_ >= 2
1961	? $DB->{$_[0]}{$_[1]}
1962	: ($DB->{$_[0]} ||= { })
1963	}
1964
1965	sub db_put($$;$) {
1966	if (@_ >= 3) {
1967	$DB->{$_[0]}{$_[1]} = $_[2];
1968	} else {
1969	$DB->{$_[0]} = $_[1];
1970	}
1971	db_dirty;
1972	}
1973
1974	cf::global->attach (
1975	prio => 10000,
1976	on_cleanup => sub {
1977	db_sync;
1978	},	2693	}
1979	);
1980	}
1981		2694
1982	#############################################################################	2695	while (my ($face, $info) = each %$faces) {
1983	# the server's main()	2696	next unless $info->{smooth};
		2697	my $idx = cf::face::find $face
		2698	or next;
		2699	if (my $smooth = cf::face::find $info->{smooth}) {
		2700	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2701	} else {
		2702	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2703	}
		2704	Coro::cede;
		2705	}
		2706	}
		2707
		2708	{
		2709	my $anims = $facedata->{animinfo};
		2710
		2711	while (my ($anim, $info) = each %$anims) {
		2712	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2713	Coro::cede;
		2714	}
		2715
		2716	cf::anim::invalidate_all; # d'oh
		2717	}
		2718
		2719	1
		2720	}
		2721
		2722	sub reload_regions {
		2723	load_resource_file "$MAPDIR/regions"
		2724	or die "unable to load regions file\n";
		2725	}
		2726
		2727	sub reload_facedata {
		2728	load_facedata "$DATADIR/facedata"
		2729	or die "unable to load facedata\n";
		2730	}
		2731
		2732	sub reload_archetypes {
		2733	load_resource_file "$DATADIR/archetypes"
		2734	or die "unable to load archetypes\n";
		2735	#d# NEED to laod twice to resolve forward references
		2736	# this really needs to be done in an extra post-pass
		2737	# (which needs to be synchronous, so solve it differently)
		2738	load_resource_file "$DATADIR/archetypes"
		2739	or die "unable to load archetypes\n";
		2740	}
		2741
		2742	sub reload_treasures {
		2743	load_resource_file "$DATADIR/treasures"
		2744	or die "unable to load treasurelists\n";
		2745	}
		2746
		2747	sub reload_resources {
		2748	warn "reloading resource files...\n";
		2749
		2750	reload_regions;
		2751	reload_facedata;
		2752	#reload_archetypes;#d#
		2753	reload_archetypes;
		2754	reload_treasures;
		2755
		2756	warn "finished reloading resource files\n";
		2757	}
		2758
		2759	sub init {
		2760	reload_resources;
		2761	}
1984		2762
1985	sub cfg_load {	2763	sub cfg_load {
1986	open my $fh, "<:utf8", cf::confdir . "/config"	2764	open my $fh, "<:utf8", "$CONFDIR/config"
1987	or return;	2765	or return;
1988		2766
1989	local $/;	2767	local $/;
1990	*CFG = YAML::Syck::Load <$fh>;	2768	*CFG = YAML::Syck::Load <$fh>;
		2769
		2770	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2771
		2772	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2773	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2774
		2775	if (exists $CFG{mlockall}) {
		2776	eval {
		2777	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2778	and die "WARNING: m(un)lockall failed: $!\n";
		2779	};
		2780	warn $@ if $@;
		2781	}
1991	}	2782	}
1992		2783
1993	sub main {	2784	sub main {
1994	# we must not ever block the main coroutine	2785	# we must not ever block the main coroutine
1995	local $Coro::idle = sub {	2786	local $Coro::idle = sub {
1996	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2787	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1997	(Coro::unblock_sub {	2788	(async {
1998	Event::one_event;	2789	Event::one_event;
1999	})->();	2790	})->prio (Coro::PRIO_MAX);
2000	};	2791	};
2001		2792
2002	cfg_load;	2793	cfg_load;
2003	db_load;	2794	db_init;
2004	load_extensions;	2795	load_extensions;
		2796
		2797	$TICK_WATCHER->start;
2005	Event::loop;	2798	Event::loop;
2006	}	2799	}
2007		2800
2008	#############################################################################	2801	#############################################################################
2009	# initialisation	2802	# initialisation and cleanup
2010		2803
		2804	# install some emergency cleanup handlers
		2805	BEGIN {
		2806	for my $signal (qw(INT HUP TERM)) {
		2807	Event->signal (
		2808	reentrant => 0,
		2809	data => WF_AUTOCANCEL,
		2810	signal => $signal,
		2811	prio => 0,
		2812	cb => sub {
		2813	cf::cleanup "SIG$signal";
		2814	},
		2815	);
		2816	}
		2817	}
		2818
		2819	sub write_runtime {
		2820	my $runtime = "$LOCALDIR/runtime";
		2821
		2822	# first touch the runtime file to show we are still running:
		2823	# the fsync below can take a very very long time.
		2824
		2825	IO::AIO::aio_utime $runtime, undef, undef;
		2826
		2827	my $guard = cf::lock_acquire "write_runtime";
		2828
		2829	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2830	or return;
		2831
		2832	my $value = $cf::RUNTIME + 90 + 10;
		2833	# 10 is the runtime save interval, for a monotonic clock
		2834	# 60 allows for the watchdog to kill the server.
		2835
		2836	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2837	and return;
		2838
		2839	# always fsync - this file is important
		2840	aio_fsync $fh
		2841	and return;
		2842
		2843	# touch it again to show we are up-to-date
		2844	aio_utime $fh, undef, undef;
		2845
		2846	close $fh
		2847	or return;
		2848
		2849	aio_rename "$runtime~", $runtime
		2850	and return;
		2851
		2852	warn "runtime file written.\n";
		2853
		2854	1
		2855	}
		2856
		2857	sub emergency_save() {
		2858	my $freeze_guard = cf::freeze_mainloop;
		2859
		2860	warn "enter emergency perl save\n";
		2861
		2862	cf::sync_job {
		2863	# use a peculiar iteration method to avoid tripping on perl
		2864	# refcount bugs in for. also avoids problems with players
		2865	# and maps saved/destroyed asynchronously.
		2866	warn "begin emergency player save\n";
		2867	for my $login (keys %cf::PLAYER) {
		2868	my $pl = $cf::PLAYER{$login} or next;
		2869	$pl->valid or next;
		2870	$pl->save;
		2871	}
		2872	warn "end emergency player save\n";
		2873
		2874	warn "begin emergency map save\n";
		2875	for my $path (keys %cf::MAP) {
		2876	my $map = $cf::MAP{$path} or next;
		2877	$map->valid or next;
		2878	$map->save;
		2879	}
		2880	warn "end emergency map save\n";
		2881
		2882	warn "begin emergency database checkpoint\n";
		2883	BDB::db_env_txn_checkpoint $DB_ENV;
		2884	warn "end emergency database checkpoint\n";
		2885	};
		2886
		2887	warn "leave emergency perl save\n";
		2888	}
		2889
		2890	sub post_cleanup {
		2891	my ($make_core) = @_;
		2892
		2893	warn Carp::longmess "post_cleanup backtrace"
		2894	if $make_core;
		2895	}
		2896
2011	sub reload() {	2897	sub do_reload_perl() {
2012	# can/must only be called in main	2898	# can/must only be called in main
2013	if ($Coro::current != $Coro::main) {	2899	if ($Coro::current != $Coro::main) {
2014	warn "can only reload from main coroutine\n";	2900	warn "can only reload from main coroutine";
2015	return;	2901	return;
2016	}	2902	}
2017		2903
2018	warn "reloading...";	2904	warn "reloading...";
2019		2905
2020	local $FREEZE = 1;	2906	warn "entering sync_job";
		2907
		2908	cf::sync_job {
		2909	cf::write_runtime; # external watchdog should not bark
2021	cf::emergency_save;	2910	cf::emergency_save;
		2911	cf::write_runtime; # external watchdog should not bark
2022		2912
2023	eval {	2913	warn "syncing database to disk";
		2914	BDB::db_env_txn_checkpoint $DB_ENV;
		2915
2024	# if anything goes wrong in here, we should simply crash as we already saved	2916	# if anything goes wrong in here, we should simply crash as we already saved
2025		2917
2026	# cancel all watchers	2918	warn "cancelling all WF_AUTOCANCEL watchers";
2027	for (Event::all_watchers) {	2919	for (Event::all_watchers) {
2028	$_->cancel if $_->data & WF_AUTOCANCEL;	2920	$_->cancel if $_->data & WF_AUTOCANCEL;
2029	}	2921	}
2030		2922
		2923	warn "flushing outstanding aio requests";
		2924	for (;;) {
		2925	BDB::flush;
		2926	IO::AIO::flush;
		2927	Coro::cede;
		2928	last unless IO::AIO::nreqs || BDB::nreqs;
		2929	warn "iterate...";
		2930	}
		2931
		2932	++$RELOAD;
		2933
2031	# cancel all extension coros	2934	warn "cancelling all extension coros";
2032	$_->cancel for values %EXT_CORO;	2935	$_->cancel for values %EXT_CORO;
2033	%EXT_CORO = ();	2936	%EXT_CORO = ();
2034		2937
2035	# unload all extensions	2938	warn "removing commands";
2036	for (@exts) {	2939	%COMMAND = ();
		2940
		2941	warn "removing ext/exti commands";
		2942	%EXTCMD = ();
		2943	%EXTICMD = ();
		2944
		2945	warn "unloading/nuking all extensions";
		2946	for my $pkg (@EXTS) {
2037	warn "unloading <$_>";	2947	warn "... unloading $pkg";
2038	unload_extension $_;	2948
		2949	if (my $cb = $pkg->can ("unload")) {
		2950	eval {
		2951	$cb->($pkg);
		2952	1
		2953	} or warn "$pkg unloaded, but with errors: $@";
2039	}	2954	}
2040		2955
		2956	warn "... nuking $pkg";
		2957	Symbol::delete_package $pkg;
		2958	}
		2959
2041	# unload all modules loaded from $LIBDIR	2960	warn "unloading all perl modules loaded from $LIBDIR";
2042	while (my ($k, $v) = each %INC) {	2961	while (my ($k, $v) = each %INC) {
2043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2962	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2044		2963
2045	warn "removing <$k>";	2964	warn "... unloading $k";
2046	delete $INC{$k};	2965	delete $INC{$k};
2047		2966
2048	$k =~ s/\.pm$//;	2967	$k =~ s/\.pm$//;
2049	$k =~ s/\//::/g;	2968	$k =~ s/\//::/g;
2050		2969
…		…
2053	}	2972	}
2054		2973
2055	Symbol::delete_package $k;	2974	Symbol::delete_package $k;
2056	}	2975	}
2057		2976
2058	# sync database to disk
2059	cf::db_sync;
2060	IO::AIO::flush;
2061
2062	# get rid of safe::, as good as possible	2977	warn "getting rid of safe::, as good as possible";
2063	Symbol::delete_package "safe::$_"	2978	Symbol::delete_package "safe::$_"
2064	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2979	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2065		2980
2066	# remove register_script_function callbacks
2067	# TODO
2068
2069	# unload cf.pm "a bit"	2981	warn "unloading cf.pm \"a bit\"";
2070	delete $INC{"cf.pm"};	2982	delete $INC{"cf.pm"};
		2983	delete $INC{"cf/pod.pm"};
2071		2984
2072	# don't, removes xs symbols, too,	2985	# don't, removes xs symbols, too,
2073	# and global variables created in xs	2986	# and global variables created in xs
2074	#Symbol::delete_package __PACKAGE__;	2987	#Symbol::delete_package __PACKAGE__;
2075		2988
2076	# reload cf.pm	2989	warn "unload completed, starting to reload now";
		2990
2077	warn "reloading cf.pm";	2991	warn "reloading cf.pm";
2078	require cf;	2992	require cf;
2079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2993	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2080		2994
2081	# load config and database again	2995	warn "loading config and database again";
2082	cf::cfg_load;	2996	cf::cfg_load;
2083	cf::db_load;
2084		2997
2085	# load extensions
2086	warn "load extensions";	2998	warn "loading extensions";
2087	cf::load_extensions;	2999	cf::load_extensions;
2088		3000
2089	# reattach attachments to objects	3001	warn "reattaching attachments to objects/players";
2090	warn "reattach";	3002	_global_reattach; # objects, sockets
2091	_global_reattach;	3003	warn "reattaching attachments to maps";
2092	};	3004	reattach $_ for values %MAP;
		3005	warn "reattaching attachments to players";
		3006	reattach $_ for values %PLAYER;
2093		3007
2094	if ($@) {	3008	warn "leaving sync_job";
		3009
		3010	1
		3011	} or do {
2095	warn $@;	3012	warn $@;
2096	warn "error while reloading, exiting.";	3013	warn "error while reloading, exiting.";
2097	exit 1;	3014	exit 1;
2098	}	3015	};
2099		3016
2100	warn "reloaded successfully";	3017	warn "reloaded";
2101	};	3018	};
2102		3019
2103	#############################################################################	3020	our $RELOAD_WATCHER; # used only during reload
2104		3021
2105	unless ($LINK_MAP) {	3022	sub reload_perl() {
2106	$LINK_MAP = cf::map::new;	3023	# doing reload synchronously and two reloads happen back-to-back,
		3024	# coro crashes during coro_state_free->destroy here.
2107		3025
2108	$LINK_MAP->width (41);	3026	$RELOAD_WATCHER ||= Event->timer (
2109	$LINK_MAP->height (41);	3027	reentrant => 0,
2110	$LINK_MAP->alloc;
2111	$LINK_MAP->path ("{link}");
2112	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2113	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2114
2115	# dirty hack because... archetypes are not yet loaded
2116	Event->timer (
2117	after => 2,	3028	after => 0,
		3029	data => WF_AUTOCANCEL,
2118	cb => sub {	3030	cb => sub {
2119	$_[0]->w->cancel;	3031	do_reload_perl;
2120		3032	undef $RELOAD_WATCHER;
2121	# provide some exits "home"
2122	my $exit = cf::object::new "exit";
2123
2124	$exit->slaying ($EMERGENCY_POSITION->[0]);
2125	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2126	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2127
2128	$LINK_MAP->insert ($exit->clone, 19, 19);
2129	$LINK_MAP->insert ($exit->clone, 19, 20);
2130	$LINK_MAP->insert ($exit->clone, 19, 21);
2131	$LINK_MAP->insert ($exit->clone, 20, 19);
2132	$LINK_MAP->insert ($exit->clone, 20, 21);
2133	$LINK_MAP->insert ($exit->clone, 21, 19);
2134	$LINK_MAP->insert ($exit->clone, 21, 20);
2135	$LINK_MAP->insert ($exit->clone, 21, 21);
2136
2137	$exit->destroy;
2138	});	3033	},
2139		3034	);
2140	$LINK_MAP->{deny_save} = 1;
2141	$LINK_MAP->{deny_reset} = 1;
2142
2143	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2144	}	3035	}
2145
2146	register "<global>", __PACKAGE__;
2147		3036
2148	register_command "reload" => sub {	3037	register_command "reload" => sub {
2149	my ($who, $arg) = @_;	3038	my ($who, $arg) = @_;
2150		3039
2151	if ($who->flag (FLAG_WIZ)) {	3040	if ($who->flag (FLAG_WIZ)) {
2152	$who->message ("start of reload.");
2153	reload;
2154	$who->message ("end of reload.");	3041	$who->message ("reloading server.");
		3042	async { reload_perl };
2155	}	3043	}
2156	};	3044	};
2157		3045
2158	unshift @INC, $LIBDIR;	3046	unshift @INC, $LIBDIR;
2159		3047
		3048	my $bug_warning = 0;
		3049
		3050	our @WAIT_FOR_TICK;
		3051	our @WAIT_FOR_TICK_BEGIN;
		3052
		3053	sub wait_for_tick {
		3054	return unless $TICK_WATCHER->is_active;
		3055	return if $Coro::current == $Coro::main;
		3056
		3057	my $signal = new Coro::Signal;
		3058	push @WAIT_FOR_TICK, $signal;
		3059	$signal->wait;
		3060	}
		3061
		3062	sub wait_for_tick_begin {
		3063	return unless $TICK_WATCHER->is_active;
		3064	return if $Coro::current == $Coro::main;
		3065
		3066	my $signal = new Coro::Signal;
		3067	push @WAIT_FOR_TICK_BEGIN, $signal;
		3068	$signal->wait;
		3069	}
		3070
		3071	my $min = 1e6;#d#
		3072	my $avg = 10;
2160	$TICK_WATCHER = Event->timer (	3073	$TICK_WATCHER = Event->timer (
2161	reentrant => 0,	3074	reentrant => 0,
		3075	parked => 1,
2162	prio => 0,	3076	prio => 0,
2163	at => $NEXT_TICK || $TICK,	3077	at => $NEXT_TICK || $TICK,
2164	data => WF_AUTOCANCEL,	3078	data => WF_AUTOCANCEL,
2165	cb => sub {	3079	cb => sub {
2166	unless ($FREEZE) {	3080	if ($Coro::current != $Coro::main) {
		3081	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3082	unless ++$bug_warning > 10;
		3083	return;
		3084	}
		3085
		3086	$NOW = $tick_start = Event::time;
		3087
2167	cf::server_tick; # one server iteration	3088	cf::server_tick; # one server iteration
2168	$RUNTIME += $TICK;	3089
		3090	0 && sync_job {#d#
		3091	for(1..10) {
		3092	my $t = Event::time;
		3093	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3094	or die;
		3095
		3096	$map->width (50);
		3097	$map->height (50);
		3098	$map->alloc;
		3099	$map->_load_objects ("/tmp/x.map", 1);
		3100	my $t = Event::time - $t;
		3101
		3102	#next unless $t < 0.0013;#d#
		3103	if ($t < $min) {
		3104	$min = $t;
		3105	}
		3106	$avg = $avg * 0.99 + $t * 0.01;
		3107	}
		3108	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3109	exit 0;
		3110	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2169	}	3111	};
2170		3112
		3113	$RUNTIME += $TICK;
2171	$NEXT_TICK += $TICK;	3114	$NEXT_TICK += $TICK;
2172		3115
		3116	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3117	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3118	Coro::async_pool {
		3119	write_runtime
		3120	or warn "ERROR: unable to write runtime file: $!";
		3121	};
		3122	}
		3123
		3124	# my $AFTER = Event::time;
		3125	# warn $AFTER - $NOW;#d#
		3126
		3127	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3128	$sig->send;
		3129	}
		3130	while (my $sig = shift @WAIT_FOR_TICK) {
		3131	$sig->send;
		3132	}
		3133
		3134	$NOW = Event::time;
		3135
2173	# if we are delayed by four ticks or more, skip them all	3136	# if we are delayed by four ticks or more, skip them all
2174	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3137	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2175		3138
2176	$TICK_WATCHER->at ($NEXT_TICK);	3139	$TICK_WATCHER->at ($NEXT_TICK);
2177	$TICK_WATCHER->start;	3140	$TICK_WATCHER->start;
		3141
		3142	$LOAD = ($NOW - $tick_start) / $TICK;
		3143	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3144
		3145	_post_tick;
		3146
		3147
2178	},	3148	},
2179	);	3149	);
2180		3150
		3151	{
2181	IO::AIO::max_poll_time $TICK * 0.2;	3152	BDB::max_poll_time $TICK * 0.1;
2182		3153	$BDB_POLL_WATCHER = Event->io (
2183	Event->io (	3154	reentrant => 0,
2184	fd => IO::AIO::poll_fileno,	3155	fd => BDB::poll_fileno,
2185	poll => 'r',	3156	poll => 'r',
2186	prio => 5,	3157	prio => 0,
2187	data => WF_AUTOCANCEL,
2188	cb => \&IO::AIO::poll_cb,
2189	);
2190
2191	Event->timer (
2192	data => WF_AUTOCANCEL,	3158	data => WF_AUTOCANCEL,
2193	after => 0,	3159	cb => \&BDB::poll_cb,
2194	interval => 10,	3160	);
2195	cb => sub {	3161	BDB::min_parallel 8;
2196	(Coro::unblock_sub {	3162
2197	write_runtime	3163	BDB::set_sync_prepare {
2198	or warn "ERROR: unable to write runtime file: $!";	3164	my $status;
		3165	my $current = $Coro::current;
		3166	(
		3167	sub {
		3168	$status = $!;
		3169	$current->ready; undef $current;
		3170	},
		3171	sub {
		3172	Coro::schedule while defined $current;
		3173	$! = $status;
		3174	},
		3175	)
		3176	};
		3177
		3178	unless ($DB_ENV) {
		3179	$DB_ENV = BDB::db_env_create;
		3180
		3181	cf::sync_job {
		3182	eval {
		3183	BDB::db_env_open
		3184	$DB_ENV,
		3185	$BDBDIR,
		3186	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3187	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3188	0666;
		3189
		3190	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3191
		3192	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3193	$DB_ENV->set_lk_detect;
		3194	};
		3195
		3196	cf::cleanup "db_env_open(db): $@" if $@;
2199	})->();	3197	};
2200	},	3198	}
2201	);	3199	}
		3200
		3201	{
		3202	IO::AIO::min_parallel 8;
		3203
		3204	undef $Coro::AIO::WATCHER;
		3205	IO::AIO::max_poll_time $TICK * 0.1;
		3206	$AIO_POLL_WATCHER = Event->io (
		3207	reentrant => 0,
		3208	data => WF_AUTOCANCEL,
		3209	fd => IO::AIO::poll_fileno,
		3210	poll => 'r',
		3211	prio => 6,
		3212	cb => \&IO::AIO::poll_cb,
		3213	);
		3214	}
		3215
		3216	my $_log_backtrace;
		3217
		3218	sub _log_backtrace {
		3219	my ($msg, @addr) = @_;
		3220
		3221	$msg =~ s/\n//;
		3222
		3223	# limit the # of concurrent backtraces
		3224	if ($_log_backtrace < 2) {
		3225	++$_log_backtrace;
		3226	async {
		3227	my @bt = fork_call {
		3228	@addr = map { sprintf "%x", $_ } @addr;
		3229	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3230	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3231	or die "addr2line: $!";
		3232
		3233	my @funcs;
		3234	my @res = <$fh>;
		3235	chomp for @res;
		3236	while (@res) {
		3237	my ($func, $line) = splice @res, 0, 2, ();
		3238	push @funcs, "[$func] $line";
		3239	}
		3240
		3241	@funcs
		3242	};
		3243
		3244	LOG llevInfo, "[ABT] $msg\n";
		3245	LOG llevInfo, "[ABT] $_\n" for @bt;
		3246	--$_log_backtrace;
		3247	};
		3248	} else {
		3249	LOG llevInfo, "[ABT] $msg\n";
		3250	LOG llevInfo, "[ABT] [suppressed]\n";
		3251	}
		3252	}
		3253
		3254	# load additional modules
		3255	use cf::pod;
2202		3256
2203	END { cf::emergency_save }	3257	END { cf::emergency_save }
2204		3258
2205	1	3259	1
2206		3260

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