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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.300 by root, Tue Jul 10 06:44:29 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	93
55	our %EXT_CORO;	94	# used to convert map paths into valid unix filenames by replacing / by ∕
		95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
56		100
57	binmode STDOUT;	101	binmode STDOUT;
58	binmode STDERR;	102	binmode STDERR;
59		103
60	# read virtual server time, if available	104	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
65	}	109	}
66		110
67	mkdir cf::localdir;	111	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		113
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
76		117
77	#############################################################################	118	#############################################################################
78		119
79	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
80		121
…		…
87	=item $cf::RUNTIME	128	=item $cf::RUNTIME
88		129
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	131	every server tick.
91		132
92	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		136
94	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
96		141
97	=item $cf::NOW	142	=item $cf::NOW
98		143
99	The time of the last (current) server tick.	144	The time of the last (current) server tick.
100		145
101	=item $cf::TICK	146	=item $cf::TICK
102		147
103	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
104		159
105	=item %cf::CFG	160	=item %cf::CFG
106		161
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		170
110	=back	171	=back
111		172
112	=cut	173	=cut
113		174
114	BEGIN {	175	BEGIN {
115	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	177	my $msg = join "", @_;
117	utf8::encode $msg;
118		178
119	$msg .= "\n"	179	$msg .= "\n"
120	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
121		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
123	};	186	};
124	}	187	}
125		188
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		196
133	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	198	# within the Safe compartment.
135	for my $pkg (qw(	199	for my $pkg (qw(
136	cf::global cf::attachable	200	cf::global cf::attachable
…		…
145		209
146	$Event::DIED = sub {	210	$Event::DIED = sub {
147	warn "error in event callback: @_";	211	warn "error in event callback: @_";
148	};	212	};
149		213
150	my %ext_pkg;	214	#############################################################################
151	my @exts;
152	my @hook;
153		215
154	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
155		217
156	=over 4	218	=over 4
157		219
158	=cut	220	=item dumpval $ref
159		221
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
161		242
162	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
163		244
164	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
165		246
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
174		248
175	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
176		250
177	=cut	251	=cut
178		252
179	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		254
184	=item my $guard = cf::guard { BLOCK }	255	sub to_json ($) { $json_coder->encode ($_[0]) }
185		256	sub from_json ($) { $json_coder->decode ($_[0]) }
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205		257
206	=item cf::lock_wait $string	258	=item cf::lock_wait $string
207		259
208	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
209		261
210	=item my $lock = cf::lock_acquire $string	262	=item my $lock = cf::lock_acquire $string
211		263
212	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
213	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,
214	for example when the coroutine gets canceled), the lock is automatically	266	for example when the coroutine gets canceled), the lock is automatically
215	returned.	267	returned.
216		268
217	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load 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.
219		275
220	=cut	276	=cut
221		277
222	our %LOCK;	278	our %LOCK;
223		279
…		…
237	# wait, to be sure we are not locked	293	# wait, to be sure we are not locked
238	lock_wait $key;	294	lock_wait $key;
239		295
240	$LOCK{$key} = [];	296	$LOCK{$key} = [];
241		297
242	cf::guard {	298	Coro::guard {
243	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
245	}	301	}
246	}	302	}
247		303
248	=item cf::async { BLOCK }	304	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	305	my ($key) = @_;
257		306
258	Coro::async {	307	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	308	}
263		309
264	sub freeze_mainloop {	310	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
266		312
267	my $guard = guard { $TICK_WATCHER->start };	313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
268	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
269	$guard	317	$guard
270	}	318	}
271		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
272	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
273		331
274	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
277		336
278	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
281	fast or be very important.	340	fast or be very important.
…		…
284		343
285	sub sync_job(&) {	344	sub sync_job(&) {
286	my ($job) = @_;	345	my ($job) = @_;
287		346
288	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
289	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
291		352
292	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	354	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	355	my $freeze_guard = freeze_mainloop;
295		356
296	my $busy = 1;	357	my $busy = 1;
297	my @res;	358	my @res;
298		359
299	(Coro::async {	360	(async {
300	@res = eval { $job->() };	361	@res = eval { $job->() };
301	warn $@ if $@;	362	warn $@ if $@;
302	undef $busy;	363	undef $busy;
303	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
304		365
305	while ($busy) {	366	while ($busy) {
306	Coro::cede_notself;	367	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	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
309		376
310	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
311	} else {	378	} else {
312	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
313		380
314	$job->()	381	$job->()
315	}	382	}
316	}	383	}
317		384
318	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
319		386
320	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
322		389
323	=cut	390	=cut
324		391
325	sub coro(&) {	392	sub async_ext(&) {
326	my $cb = shift;	393	my $cb = shift;
327		394
328	my $coro = &cf::async ($cb);	395	my $coro = &Coro::async ($cb);
329		396
330	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
332	});	399	});
333	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
334		401
335	$coro	402	$coro
336	}	403	}
337		404
338	sub write_runtime {	405	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		406
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
342	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.
343		411
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		413
348	aio_fsync $fh	414	sub _store_scalar {
349	and return;	415	open my $fh, ">", \my $buf
350		416	or die "fork_call: cannot open fh-to-buf in child : $!";
		417	Storable::store_fd $_[0], $fh;
351	close $fh	418	close $fh;
352	or return;
353		419
354	aio_rename "$runtime~", $runtime	420	$buf
355	and return;	421	}
356		422
		423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
357	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
		581	}
		582
		583	=item cf::datalog type => key => value, ...
		584
		585	Log a datalog packet of the given type with the given key-value pairs.
		586
		587	=cut
		588
		589	sub datalog($@) {
		590	my ($type, %kv) = @_;
		591	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	592	}
359		593
360	=back	594	=back
361		595
362	=cut	596	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		597
484	#############################################################################	598	#############################################################################
485		599
486	=head2 ATTACHABLE OBJECTS	600	=head2 ATTACHABLE OBJECTS
487		601
…		…
489	attach callbacks/event handlers (a collection of which is called an "attachment")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
491		605
492	In the following description, CLASS can be any of C<global>, C<object>	606	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	608	Crossfire TRT).
495		609
496	=over 4	610	=over 4
497		611
498	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
499		613
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	727	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	728	our @CB_MAP = ();
615		729
616	my %attachment;	730	my %attachment;
617		731
		732	sub cf::attachable::thawer_merge {
		733	# simply override everything except _meta
		734	local $_[0]{_meta};
		735	%{$_[0]} = %{$_[1]};
		736	}
		737
618	sub _attach_cb($$$$) {	738	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	739	my ($registry, $event, $prio, $cb) = @_;
620		740
621	use sort 'stable';	741	use sort 'stable';
622		742
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	776	$registry = $CB_TYPE[$object_type] ||= [];
657		777
658	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		782
663	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	784	my $pkg = shift @arg;
665		785
666	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
696	}	816	}
697		817
698	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
699	} else {	819	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	821	}
702		822
703	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
704	}	824	}
705		825
…		…
707	if (ref $_[0]) {	827	if (ref $_[0]) {
708	_object_attach @_;	828	_object_attach @_;
709	} else {	829	} else {
710	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
711	}	831	}
		832	_recalc_want;
712	};	833	};
713		834
714	# all those should be optimised	835	# all those should be optimised
715	sub cf::attachable::detach {	836	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
720	reattach ($obj);	841	reattach ($obj);
721	} else {	842	} else {
722	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
723	}	844	}
		845	_recalc_want;
724	};	846	};
725		847
726	sub cf::attachable::attached {	848	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
728		850
…		…
793	# object support	915	# object support
794		916
795	sub reattach {	917	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	918	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	919	my ($obj) = @_;
		920
		921	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		922
799	my $registry = $obj->registry;	923	my $registry = $obj->registry;
800		924
801	@$registry = ();	925	@$registry = ();
802		926
…		…
849	$filename, length $$rdata, scalar @$objs;	973	$filename, length $$rdata, scalar @$objs;
850		974
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	975	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	976	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	977	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	978	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	979	close $fh;
856		980
857	if (@$objs) {	981	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	982	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	984	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	985	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	986	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	987	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	988	aio_rename "$filename.pst~", "$filename.pst";
865	}	989	}
866	} else {	990	} else {
867	aio_unlink "$filename.pst";	991	aio_unlink "$filename.pst";
…		…
899	or return;	1023	or return;
900	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
901	}	1025	}
902		1026
903	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1028	$filename, length $data, scalar @{$av || []};
905	return ($data, $av);	1029	return ($data, $av);
906	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
907		1037
908	#############################################################################	1038	#############################################################################
909	# command handling &c	1039	# command handling &c
910		1040
911	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1055	}
926		1056
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1058
929	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
930		1064
931	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
932	called.	1066	called.
933		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
934	=cut	1079	=cut
935		1080
936	sub register_extcmd {	1081	sub register_extcmd {
937	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
938		1083
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
943	}	1091	}
944		1092
945	cf::player->attach (	1093	cf::player->attach (
946	on_command => sub {	1094	on_command => sub {
947	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1104	cf::override;
957	},	1105	},
958	on_extcmd => sub {	1106	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
960		1108
961	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1110
963	if (ref $msg) {	1111	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	1115	}
968	}	1116	}
969	} else {	1117	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1118	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		1120
973	cf::override;	1121	cf::override;
974	},	1122	},
975	);	1123	);
976		1124
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
		1129	for my $path (<$LIBDIR/*.ext>) {
		1130	next unless -r $path;
		1131
		1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
		1189	}
		1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
		1195	};
		1196	}
		1197
		1198	#############################################################################
		1199
		1200	=back
		1201
		1202	=head2 CORE EXTENSIONS
		1203
		1204	Functions and methods that extend core crossfire objects.
		1205
		1206	=cut
		1207
		1208	package cf::player;
		1209
		1210	use Coro::AIO;
		1211
		1212	=head3 cf::player
		1213
		1214	=over 4
		1215
		1216	=item cf::player::find $login
		1217
		1218	Returns the given player object, loading it if necessary (might block).
		1219
		1220	=cut
		1221
		1222	sub playerdir($) {
		1223	"$PLAYERDIR/"
		1224	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1225	}
		1226
		1227	sub path($) {
		1228	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1229
		1230	(playerdir $login) . "/playerdata"
		1231	}
		1232
		1233	sub find_active($) {
		1234	$cf::PLAYER{$_[0]}
		1235	and $cf::PLAYER{$_[0]}->active
		1236	and $cf::PLAYER{$_[0]}
		1237	}
		1238
		1239	sub exists($) {
		1240	my ($login) = @_;
		1241
		1242	$cf::PLAYER{$login}
		1243	or cf::sync_job { !aio_stat path $login }
		1244	}
		1245
		1246	sub find($) {
		1247	return $cf::PLAYER{$_[0]} || do {
		1248	my $login = $_[0];
		1249
		1250	my $guard = cf::lock_acquire "user_find:$login";
		1251
		1252	$cf::PLAYER{$_[0]} || do {
		1253	# rename old playerfiles to new ones
		1254	#TODO: remove when no longer required
		1255	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1256	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1257	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1258	aio_unlink +(playerdir $login) . "/$login.pl";
		1259
		1260	my $pl = load_pl path $login
		1261	or return;
		1262	$cf::PLAYER{$login} = $pl
		1263	}
		1264	}
		1265	}
		1266
		1267	sub save($) {
		1268	my ($pl) = @_;
		1269
		1270	return if $pl->{deny_save};
		1271
		1272	my $path = path $pl;
		1273	my $guard = cf::lock_acquire "user_save:$path";
		1274
		1275	return if $pl->{deny_save};
		1276
		1277	aio_mkdir playerdir $pl, 0770;
		1278	$pl->{last_save} = $cf::RUNTIME;
		1279
		1280	$pl->save_pl ($path);
		1281	Coro::cede;
		1282	}
		1283
		1284	sub new($) {
		1285	my ($login) = @_;
		1286
		1287	my $self = create;
		1288
		1289	$self->ob->name ($login);
		1290	$self->{deny_save} = 1;
		1291
		1292	$cf::PLAYER{$login} = $self;
		1293
		1294	$self
		1295	}
		1296
		1297	=item $pl->quit_character
		1298
		1299	Nukes the player without looking back. If logged in, the connection will
		1300	be destroyed. May block for a long time.
		1301
		1302	=cut
		1303
		1304	sub quit_character {
		1305	my ($pl) = @_;
		1306
		1307	my $name = $pl->ob->name;
		1308
		1309	$pl->{deny_save} = 1;
		1310	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1311
		1312	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1313	$pl->deactivate;
		1314	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1315	$pl->ns->destroy if $pl->ns;
		1316
		1317	my $path = playerdir $pl;
		1318	my $temp = "$path~$cf::RUNTIME~deleting~";
		1319	aio_rename $path, $temp;
		1320	delete $cf::PLAYER{$pl->ob->name};
		1321	$pl->destroy;
		1322
		1323	my $prefix = qr<^~\Q$name\E/>;
		1324
		1325	# nuke player maps
		1326	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1327
		1328	IO::AIO::aio_rmtree $temp;
		1329	}
		1330
		1331	=item $pl->kick
		1332
		1333	Kicks a player out of the game. This destroys the connection.
		1334
		1335	=cut
		1336
		1337	sub kick {
		1338	my ($pl, $kicker) = @_;
		1339
		1340	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1341	$pl->killer ("kicked");
		1342	$pl->ns->destroy;
		1343	}
		1344
		1345	=item cf::player::list_logins
		1346
		1347	Returns am arrayref of all valid playernames in the system, can take a
		1348	while and may block, so not sync_job-capable, ever.
		1349
		1350	=cut
		1351
		1352	sub list_logins {
		1353	my $dirs = aio_readdir $PLAYERDIR
		1354	or return [];
		1355
		1356	my @logins;
		1357
		1358	for my $login (@$dirs) {
		1359	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1360	aio_read $fh, 0, 512, my $buf, 0 or next;
		1361	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1362
		1363	utf8::decode $login;
		1364	push @logins, $login;
		1365	}
		1366
		1367	\@logins
		1368	}
		1369
		1370	=item $player->maps
		1371
		1372	Returns an arrayref of map paths that are private for this
		1373	player. May block.
		1374
		1375	=cut
		1376
		1377	sub maps($) {
		1378	my ($pl) = @_;
		1379
		1380	$pl = ref $pl ? $pl->ob->name : $pl;
		1381
		1382	my $files = aio_readdir playerdir $pl
		1383	or return;
		1384
		1385	my @paths;
		1386
		1387	for (@$files) {
		1388	utf8::decode $_;
		1389	next if /\.(?:pl|pst)$/;
		1390	next unless /^$PATH_SEP/o;
		1391
		1392	push @paths, cf::map::normalise "~$pl/$_";
		1393	}
		1394
		1395	\@paths
		1396	}
		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&amp;/g;
		1409	s/(?<![BIUGH])</&lt;/g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male|female> tags
		1419	|| s{G<([^>|]*)\|([^>]*)>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	|| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	warn $_;#d#
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
		1449	=item $player->ext_reply ($msgid, %msg)
		1450
		1451	Sends an ext reply to the player.
		1452
		1453	=cut
		1454
		1455	sub ext_reply($$%) {
		1456	my ($self, $id, %msg) = @_;
		1457
		1458	$msg{msgid} = $id;
		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1460	}
		1461
		1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
984	my ($path) = @_;	1489	my ($path) = @_;
985		1490
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1491	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1492
992	warn "loading '$path' into '$pkg'\n";	1493	for my $region (list) {
993		1494	if ($region->match && $path =~ $region->match) {
994	open my $fh, "<:utf8", $path	1495	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1496	if $region->specificity > $specificity;
996		1497	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1498	}
1026		1499
1027	# remove commands	1500	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1501	}
1133		1502
1134	=back	1503	=back
1135
1136		1504
1137	=head3 cf::map	1505	=head3 cf::map
1138		1506
1139	=over 4	1507	=over 4
1140		1508
…		…
1143	package cf::map;	1511	package cf::map;
1144		1512
1145	use Fcntl;	1513	use Fcntl;
1146	use Coro::AIO;	1514	use Coro::AIO;
1147		1515
		1516	use overload
		1517	'""' => \&as_string,
		1518	fallback => 1;
		1519
1148	our $MAX_RESET = 3600;	1520	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1521	our $DEFAULT_RESET = 3000;
1150		1522
1151	sub generate_random_map {	1523	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1524	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1525	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1526	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1527	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1528	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1529	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1530	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1531	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1532	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1533	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1534	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1535	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1537	(cf::region::find $rmp->{region}), $rmp->{custom}
		1538	)
		1539	}
		1540
		1541	=item cf::map->register ($regex, $prio)
		1542
		1543	Register a handler for the map path matching the given regex at the
		1544	givne priority (higher is better, built-in handlers have priority 0, the
		1545	default).
		1546
		1547	=cut
		1548
		1549	sub register {
		1550	my (undef, $regex, $prio) = @_;
		1551	my $pkg = caller;
		1552
		1553	no strict;
		1554	push @{"$pkg\::ISA"}, __PACKAGE__;
		1555
		1556	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1557	}
		1558
		1559	# also paths starting with '/'
		1560	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1561
		1562	sub thawer_merge {
		1563	my ($self, $merge) = @_;
		1564
		1565	# we have to keep some variables in memory intact
		1566	local $self->{path};
		1567	local $self->{load_path};
		1568
		1569	$self->SUPER::thawer_merge ($merge);
		1570	}
		1571
		1572	sub normalise {
		1573	my ($path, $base) = @_;
		1574
		1575	$path = "$path"; # make sure its a string
		1576
		1577	$path =~ s/\.map$//;
		1578
		1579	# map plan:
		1580	#
		1581	# /! non-realised random map exit (special hack!)
		1582	# {... are special paths that are not being touched
		1583	# ?xxx/... are special absolute paths
		1584	# ?random/... random maps
		1585	# /... normal maps
		1586	# ~user/... per-player map of a specific user
		1587
		1588	$path =~ s/$PATH_SEP/\//go;
		1589
		1590	# treat it as relative path if it starts with
		1591	# something that looks reasonable
		1592	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1593	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1594
		1595	$base =~ s{[^/]+/?$}{};
		1596	$path = "$base/$path";
		1597	}
		1598
		1599	for ($path) {
		1600	redo if s{//}{/};
		1601	redo if s{/\.?/}{/};
		1602	redo if s{/[^/]+/\.\./}{/};
		1603	}
		1604
		1605	$path
		1606	}
		1607
		1608	sub new_from_path {
		1609	my (undef, $path, $base) = @_;
		1610
		1611	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1612
		1613	$path = normalise $path, $base;
		1614
		1615	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1616	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1617	my $self = bless cf::map::new, $pkg;
		1618	$self->{path} = $path; $self->path ($path);
		1619	$self->init; # pass $1 etc.
		1620	return $self;
		1621	}
		1622	}
		1623
		1624	Carp::carp "unable to resolve path '$path' (base '$base').";
		1625	()
		1626	}
		1627
		1628	sub init {
		1629	my ($self) = @_;
		1630
		1631	$self
		1632	}
		1633
		1634	sub as_string {
		1635	my ($self) = @_;
		1636
		1637	"$self->{path}"
		1638	}
		1639
		1640	# the displayed name, this is a one way mapping
		1641	sub visible_name {
		1642	&as_string
		1643	}
		1644
		1645	# the original (read-only) location
		1646	sub load_path {
		1647	my ($self) = @_;
		1648
		1649	"$MAPDIR/$self->{path}.map"
		1650	}
		1651
		1652	# the temporary/swap location
		1653	sub save_path {
		1654	my ($self) = @_;
		1655
		1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1657	"$TMPDIR/$path.map"
		1658	}
		1659
		1660	# the unique path, undef == no special unique path
		1661	sub uniq_path {
		1662	my ($self) = @_;
		1663
		1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1665	"$UNIQUEDIR/$path"
1168	}	1666	}
1169		1667
1170	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1171	# all maps in C++...	1669	# all maps in C++...
1172	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1174		1672
1175	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1177	}	1675	}
1178		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
		1685	sub unlink_save {
		1686	my ($self) = @_;
		1687
		1688	utf8::encode (my $save = $self->save_path);
		1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1690	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1691	}
		1692
1179	sub try_load_header($) {	1693	sub load_header_from($) {
1180	my ($path) = @_;	1694	my ($self, $path) = @_;
1181		1695
1182	utf8::encode $path;	1696	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
		1698	# or return;
		1699
		1700	$self->_load_header ($path)
1184	or return;	1701	or return;
1185		1702
1186	my $map = cf::map::new	1703	$self->{load_path} = $path;
		1704
		1705	1
		1706	}
		1707
		1708	sub load_header_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->load_path)
		1712	}
		1713
		1714	sub load_header_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->save_path)
		1718	}
		1719
		1720	sub prepare_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->last_access ((delete $self->{last_access})
		1724	|| $cf::RUNTIME); #d#
		1725	# safety
		1726	$self->{instantiate_time} = $cf::RUNTIME
		1727	if $self->{instantiate_time} > $cf::RUNTIME;
		1728	}
		1729
		1730	sub prepare_orig {
		1731	my ($self) = @_;
		1732
		1733	$self->{load_original} = 1;
		1734	$self->{instantiate_time} = $cf::RUNTIME;
		1735	$self->last_access ($cf::RUNTIME);
		1736	$self->instantiate;
		1737	}
		1738
		1739	sub load_header {
		1740	my ($self) = @_;
		1741
		1742	if ($self->load_header_temp) {
		1743	$self->prepare_temp;
		1744	} else {
		1745	$self->load_header_orig
1187	or return;	1746	or return;
		1747	$self->prepare_orig;
		1748	}
1188		1749
1189	$map->load_header ($path)	1750	$self->{deny_reset} = 1
1190	or return;	1751	if $self->no_reset;
1191		1752
1192	$map->{load_path} = $path;	1753	$self->default_region (cf::region::find_by_path $self->{path})
		1754	unless $self->default_region;
1193		1755
1194	$map	1756	1
1195	}	1757	}
1196		1758
1197	sub find;	1759	sub find;
1198	sub find {	1760	sub find {
1199	my ($path, $origin) = @_;	1761	my ($path, $origin) = @_;
1200		1762
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1763	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1764
1206	cf::lock_wait "map_find:$key";	1765	cf::lock_wait "map_find:$path";
1207		1766
1208	$cf::MAP{$key} || do {	1767	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1768	my $guard = cf::lock_acquire "map_find:$path";
1210		1769	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	1770	or return;
1230		1771
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1243		1773
1244	Coro::cede;	1774	$map->load_header
		1775	or return;
1245		1776
1246	if ($map->should_reset) {	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1778	# doing this can freeze the server in a sync job, obviously
		1779	#$cf::WAIT_FOR_TICK->wait;
1247	$map->reset;	1780	$map->reset;
1248	undef $guard;	1781	undef $guard;
1249	$map = find $path	1782	return find $path;
1250	or return;
1251	}	1783	}
1252		1784
1253	$cf::MAP{$key} = $map	1785	$cf::MAP{$path} = $map
1254	}	1786	}
1255	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1256		1791
1257	sub load {	1792	sub load {
1258	my ($self) = @_;	1793	my ($self) = @_;
1259		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1260	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1800	my $guard = cf::lock_acquire "map_load:$path";
1262		1801
1263	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1264		1803
1265	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1266		1805
1267	$self->alloc;	1806	$self->alloc;
		1807
		1808	$self->pre_load;
		1809	Coro::cede;
		1810
1268	$self->load_objects ($self->{load_path}, 1)	1811	$self->_load_objects ($self->{load_path}, 1)
1269	or return;	1812	or return;
1270		1813
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272	if delete $self->{load_original};	1815	if delete $self->{load_original};
1273		1816
1274	if (my $uniq = $path->uniq_path) {	1817	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	1818	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	1819	if (aio_open $uniq, O_RDONLY, 0) {
1277	$self->clear_unique_items;	1820	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	1821	$self->_load_objects ($uniq, 0);
1279	}	1822	}
1280	}	1823	}
1281		1824
1282	Coro::cede;	1825	Coro::cede;
1283
1284	# now do the right thing for maps	1826	# now do the right thing for maps
1285	$self->link_multipart_objects;	1827	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1296	unless $self->difficulty;	1829	unless $self->difficulty;
		1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1297	$self->activate;	1839	$self->activate;
1298	}	1840	}
1299		1841
1300	Coro::cede;
1301
1302	$self->in_memory (cf::MAP_IN_MEMORY);	1842	$self->in_memory (cf::MAP_IN_MEMORY);
		1843	}
		1844
		1845	$self->post_load;
		1846	}
		1847
		1848	sub customise_for {
		1849	my ($self, $ob) = @_;
		1850
		1851	return find "~" . $ob->name . "/" . $self->{path}
		1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
		1857	$self
		1858	}
		1859
		1860	# find and load all maps in the 3x3 area around a map
		1861	sub load_diag {
		1862	my ($map) = @_;
		1863
		1864	my @diag; # diagonal neighbours
		1865
		1866	for (0 .. 3) {
		1867	my $neigh = $map->tile_path ($_)
		1868	or next;
		1869	$neigh = find $neigh, $map
		1870	or next;
		1871	$neigh->load;
		1872
		1873	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1874	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1875	}
		1876
		1877	for (@diag) {
		1878	my $neigh = find @$_
		1879	or next;
		1880	$neigh->load;
		1881	}
1303	}	1882	}
1304		1883
1305	sub find_sync {	1884	sub find_sync {
1306	my ($path, $origin) = @_;	1885	my ($path, $origin) = @_;
1307		1886
1308	cf::sync_job { cf::map::find $path, $origin }	1887	cf::sync_job { find $path, $origin }
1309	}	1888	}
1310		1889
1311	sub do_load_sync {	1890	sub do_load_sync {
1312	my ($map) = @_;	1891	my ($map) = @_;
1313		1892
1314	cf::sync_job { $map->load };	1893	cf::sync_job { $map->load };
1315	}	1894	}
1316		1895
		1896	our %MAP_PREFETCH;
		1897	our $MAP_PREFETCHER = undef;
		1898
		1899	sub find_async {
		1900	my ($path, $origin) = @_;
		1901
		1902	$path = normalise $path, $origin && $origin->{path};
		1903
		1904	if (my $map = $cf::MAP{$path}) {
		1905	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1906	}
		1907
		1908	undef $MAP_PREFETCH{$path};
		1909	$MAP_PREFETCHER ||= cf::async {
		1910	while (%MAP_PREFETCH) {
		1911	for my $path (keys %MAP_PREFETCH) {
		1912	my $map = find $path
		1913	or next;
		1914	$map->load;
		1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
		1920	};
		1921	$MAP_PREFETCHER->prio (6);
		1922
		1923	()
		1924	}
		1925
1317	sub save {	1926	sub save {
1318	my ($self) = @_;	1927	my ($self) = @_;
1319		1928
		1929	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1930
1320	$self->{last_save} = $cf::RUNTIME;	1931	$self->{last_save} = $cf::RUNTIME;
1321		1932
1322	return unless $self->dirty;	1933	return unless $self->dirty;
1323		1934
1324	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1936	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		1937
1327	$self->{load_path} = $save;	1938	$self->{load_path} = $save;
1328		1939
1329	return if $self->{deny_save};	1940	return if $self->{deny_save};
1330		1941
1331	local $self->{last_access} = $self->last_access;#d#	1942	local $self->{last_access} = $self->last_access;#d#
1332		1943
		1944	cf::async {
		1945	$_->contr->save for $self->players;
		1946	};
		1947
1333	if ($uniq) {	1948	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1949	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	1950	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	1951	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1952	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}	1953	}
1339	}	1954	}
1340		1955
1341	sub swap_out {	1956	sub swap_out {
1342	my ($self) = @_;	1957	my ($self) = @_;
1343		1958
1344	# save first because save cedes	1959	# save first because save cedes
1345	$self->save;	1960	$self->save;
		1961
		1962	my $lock = cf::lock_acquire "map_data:" . $self->path;
1346		1963
1347	return if $self->players;	1964	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	1965	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};	1966	return if $self->{deny_save};
1350		1967
…		…
1354		1971
1355	sub reset_at {	1972	sub reset_at {
1356	my ($self) = @_;	1973	my ($self) = @_;
1357		1974
1358	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};
1360	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1361		1977
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		1980
…		…
1369	my ($self) = @_;	1985	my ($self) = @_;
1370		1986
1371	$self->reset_at <= $cf::RUNTIME	1987	$self->reset_at <= $cf::RUNTIME
1372	}	1988	}
1373		1989
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	1990	sub reset {
1396	my ($self) = @_;	1991	my ($self) = @_;
1397		1992
		1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1994
1398	return if $self->players;	1995	return if $self->players;
1399	return if $self->{path}{user_rel};#d#
1400		1996
1401	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
		1998
		1999	$self->in_memory (cf::MAP_SWAPPED);
		2000
		2001	# need to save uniques path
		2002	unless ($self->{deny_save}) {
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2006	if $uniq;
		2007	}
1402		2008
1403	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
		2010
		2011	$self->clear;
1404		2012
1405	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1406		2014
1407	$self->unlink_save;	2015	$self->unlink_save;
1408	$self->destroy;	2016	$self->destroy;
…		…
1411	my $nuke_counter = "aaaa";	2019	my $nuke_counter = "aaaa";
1412		2020
1413	sub nuke {	2021	sub nuke {
1414	my ($self) = @_;	2022	my ($self) = @_;
1415		2023
		2024	delete $cf::MAP{$self->path};
		2025
		2026	$self->unlink_save;
		2027
		2028	bless $self, "cf::map";
		2029	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	2030	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	2031	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	2032	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2033
		2034	$cf::MAP{$self->path} = $self;
		2035
1419	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1420	}	2037	}
1421		2038
1422	sub customise_for {	2039	=item $maps = cf::map::tmp_maps
1423	my ($map, $ob) = @_;
1424		2040
1425	if ($map->per_player) {	2041	Returns an arrayref with all map paths of currently instantiated and saved
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
1427	}	2047	[
1428		2048	map {
1429	$map	2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
1430	}	2055	}
1431		2056
1432	sub emergency_save {	2057	=item $maps = cf::map::random_maps
1433	my $freeze_guard = cf::freeze_mainloop;
1434		2058
1435	warn "enter emergency map save\n";	2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
1436		2061
1437	cf::sync_job {	2062	=cut
1438	warn "begin emergency map save\n";
1439	$_->save for values %cf::MAP;
1440	};
1441		2063
1442	warn "end emergency map save\n";	2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
		2075	=item cf::map::unique_maps
		2076
		2077	Returns an arrayref of paths of all shared maps that have
		2078	instantiated unique items. May block.
		2079
		2080	=cut
		2081
		2082	sub unique_maps() {
		2083	[
		2084	map {
		2085	utf8::decode $_;
		2086	/\.map$/
		2087	? normalise $_
		2088	: ()
		2089	} @{ aio_readdir $UNIQUEDIR or [] }
		2090	]
1443	}	2091	}
1444		2092
1445	package cf;	2093	package cf;
1446		2094
1447	=back	2095	=back
1448		2096
		2097	=head3 cf::object
		2098
		2099	=cut
		2100
		2101	package cf::object;
		2102
		2103	=over 4
		2104
		2105	=item $ob->inv_recursive
		2106
		2107	Returns the inventory of the object _and_ their inventories, recursively.
		2108
		2109	=cut
		2110
		2111	sub inv_recursive_;
		2112	sub inv_recursive_ {
		2113	map { $_, inv_recursive_ $_->inv } @_
		2114	}
		2115
		2116	sub inv_recursive {
		2117	inv_recursive_ inv $_[0]
		2118	}
		2119
		2120	package cf;
		2121
		2122	=back
1449		2123
1450	=head3 cf::object::player	2124	=head3 cf::object::player
1451		2125
1452	=over 4	2126	=over 4
1453		2127
…		…
1467		2141
1468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1469		2143
1470	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1472	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1473	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1474	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1475	}	2163	}
1476	}	2164	}
1477		2165
1478	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1479		2167
…		…
1493		2181
1494	=item $player_object->enter_link	2182	=item $player_object->enter_link
1495		2183
1496	Freezes the player and moves him/her to a special map (C<{link}>).	2184	Freezes the player and moves him/her to a special map (C<{link}>).
1497		2185
1498	The player should be reaosnably safe there for short amounts of time. You	2186	The player should be reasonably safe there for short amounts of time. You
1499	I<MUST> call C<leave_link> as soon as possible, though.	2187	I<MUST> call C<leave_link> as soon as possible, though.
1500		2188
		2189	Will never block.
		2190
1501	=item $player_object->leave_link ($map, $x, $y)	2191	=item $player_object->leave_link ($map, $x, $y)
1502		2192
1503	Moves the player out of the specila link map onto the given map. If the	2193	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	2194	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	2195	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	2196	fails, to the emergency map position.
1507		2197
1508	Might block.	2198	Might block.
1509		2199
1510	=cut	2200	=cut
		2201
		2202	sub link_map {
		2203	unless ($LINK_MAP) {
		2204	$LINK_MAP = cf::map::find "{link}"
		2205	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2206	$LINK_MAP->load;
		2207	}
		2208
		2209	$LINK_MAP
		2210	}
1511		2211
1512	sub cf::object::player::enter_link {	2212	sub cf::object::player::enter_link {
1513	my ($self) = @_;	2213	my ($self) = @_;
1514		2214
1515	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1516		2216
1517	return if $self->map == $LINK_MAP;	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		2218
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1521		2221
1522	$self->enter_map ($LINK_MAP, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	2223	}
1524		2224
1525	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1527		2229
1528	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1529		2231
1530	unless ($map) {	2232	unless ($map) {
1531	# restore original map position	2233	# restore original map position
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	2247	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	2248	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	2249	if $x <=0 && $y <= 0;
1548		2250
1549	$map->load;	2251	$map->load;
		2252	$map->load_diag;
1550		2253
		2254	return unless $self->contr->active;
1551	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1553	}	2259	}
1554		2260
1555	cf::player->attach (
1556	on_logout => sub {
1557	my ($pl) = @_;
1558
1559	# abort map switching before logout
1560	if ($pl->ob->{_link_pos}) {
1561	cf::sync_job {
1562	$pl->ob->leave_link
1563	};
1564	}
1565	},
1566	on_login => sub {
1567	my ($pl) = @_;
1568
1569	# try to abort aborted map switching on player login :)
1570	# should happen only on crashes
1571	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;
1573	cf::async {
1574	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;
1578	};
1579	}
1580	},
1581	);
1582
1583	=item $player_object->goto_map ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1584		2262
1585	=cut	2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
1586		2267
		2268	=cut
		2269
		2270	our $GOTOGEN;
		2271
1587	sub cf::object::player::goto_map {	2272	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1589		2277
1590	$self->enter_link;	2278	$self->enter_link;
1591		2279
1592	(cf::async {	2280	(async {
1593	$path = new cf::path $path;	2281	my $map = eval {
1594
1595	my $map = cf::map::find $path->as_string;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1596	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
1597		2286	$map = $check->($map) if $check && $map;
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	2287	} else {
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
1602		2290
		2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
		2297	}
		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1603	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1604	})->prio (1);	2303	})->prio (1);
1605	}	2304	}
1606		2305
1607	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1608		2307
…		…
1610		2309
1611	sub parse_random_map_params {	2310	sub parse_random_map_params {
1612	my ($spec) = @_;	2311	my ($spec) = @_;
1613		2312
1614	my $rmp = { # defaults	2313	my $rmp = { # defaults
1615	xsize => 10,	2314	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2315	ysize => (cf::rndm 15, 40),
		2316	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2317	#layout => string,
1617	};	2318	};
1618		2319
1619	for (split /\n/, $spec) {	2320	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2321	my ($k, $v) = split /\s+/, $_, 2;
1621		2322
…		…
1625	$rmp	2326	$rmp
1626	}	2327	}
1627		2328
1628	sub prepare_random_map {	2329	sub prepare_random_map {
1629	my ($exit) = @_;	2330	my ($exit) = @_;
		2331
		2332	my $guard = cf::lock_acquire "exit_prepare:$exit";
1630		2333
1631	# all this does is basically replace the /! path by	2334	# all this does is basically replace the /! path by
1632	# a new random map path (?random/...) with a seed	2335	# a new random map path (?random/...) with a seed
1633	# that depends on the exit object	2336	# that depends on the exit object
1634		2337
1635	my $rmp = parse_random_map_params $exit->msg;	2338	my $rmp = parse_random_map_params $exit->msg;
1636		2339
1637	if ($exit->map) {	2340	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2341	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2342	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2343	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2344	$rmp->{origin_y} = $exit->y;
1642	}	2345	}
1643		2346
1644	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1645		2348
1646	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1647	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
		2351	my $meta = "$RANDOMDIR/$md5.meta";
1648		2352
1649	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
		2355	undef $fh;
		2356	aio_rename "$meta~", $meta;
1651		2357
1652	$exit->slaying ("?random/$md5");	2358	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2359	$exit->msg (undef);
1654	}	2360	}
1655	}	2361	}
…		…
1657	sub cf::object::player::enter_exit {	2363	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2364	my ($self, $exit) = @_;
1659		2365
1660	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1661		2367
		2368	if ($exit->slaying eq "/!") {
		2369	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2370	# the problem is that $exit might not survive long enough
		2371	# so it needs to be done right now, right here
		2372	cf::sync_job { prepare_random_map $exit };
		2373	}
		2374
		2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2376	my $hp = $exit->stats->hp;
		2377	my $sp = $exit->stats->sp;
		2378
1662	$self->enter_link;	2379	$self->enter_link;
1663		2380
		2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
1664	(cf::async {	2385	(async {
1665	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
1666	unless (eval {	2387	unless (eval {
1667	prepare_random_map $exit	2388	$self->goto ($slaying, $hp, $sp);
1668	if $exit->slaying eq "/!";
1669
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1672		2389
1673	1;	2390	1;
1674	}) {	2391	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1676	. "I'll try to bring you back to the map you were before. "	2393	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	2394	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2396
1680	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2398	$self->leave_link;
1682	}	2399	}
1683	})->prio (1);	2400	})->prio (1);
…		…
1696		2413
1697	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1699		2416
1700	utf8::encode $text;	2417	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2419	}
1703		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
		2461	=item $client->ext_event ($type, %msg)
		2462
		2463	Sends an ext event to the client.
		2464
		2465	=cut
		2466
		2467	sub cf::client::ext_event($$%) {
		2468	my ($self, $type, %msg) = @_;
		2469
		2470	$msg{msgtype} = "event_$type";
		2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2472	}
1704		2473
1705	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
1706		2475
1707	Queues a query to the client, calling the given callback with	2476	Queues a query to the client, calling the given callback with
1708	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2477	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1709	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1710		2479
1711	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
1712	reliable at some point in the future.	2481	become reliable at some point in the future.
1713		2482
1714	=cut	2483	=cut
1715		2484
1716	sub cf::client::query {	2485	sub cf::client::query {
1717	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
1725	utf8::encode $text;	2494	utf8::encode $text;
1726	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1727		2496
1728	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
1729	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
1730	}	2501	}
1731		2502
1732	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
1733	on_reply => sub {	2509	on_reply => sub {
1734	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
1735		2511
1736	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
1737	# get handled first	2513	# get handled first
1738	my $queue = delete $ns->{query_queue}	2514	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	2515	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		2516
1741	(shift @$queue)->[1]->($msg);	2517	(shift @$queue)->[1]->($msg);
		2518	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		2519
1743	push @{ $ns->{query_queue} }, @$queue;	2520	push @{ $ns->{query_queue} }, @$queue;
1744		2521
1745	if (@{ $ns->{query_queue} } == @$queue) {	2522	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	2523	if (@$queue) {
…		…
1748	} else {	2525	} else {
1749	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1750	}	2527	}
1751	}	2528	}
1752	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
1753	);	2548	);
1754		2549
1755	=item $client->coro (\&cb)	2550	=item $client->async (\&cb)
1756		2551
1757	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	2553	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	2554	or loss of connection).
1760		2555
1761	=cut	2556	=cut
1762		2557
1763	sub cf::client::coro {	2558	sub cf::client::async {
1764	my ($self, $cb) = @_;	2559	my ($self, $cb) = @_;
1765		2560
1766	my $coro = &cf::async ($cb);	2561	my $coro = &Coro::async ($cb);
1767		2562
1768	$coro->on_destroy (sub {	2563	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	2564	delete $self->{_coro}{$coro+0};
1770	});	2565	});
1771		2566
…		…
1804		2599
1805	# here we export the classes and methods available to script code	2600	# here we export the classes and methods available to script code
1806		2601
1807	=pod	2602	=pod
1808		2603
1809	The following fucntions and emthods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
1810		2605
1811	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
1812	cf::object::player player	2610	cf::object::player
1813	cf::player peaceful	2611	player
1814	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
1815		2618
1816	=cut	2619	=cut
1817		2620
1818	for (	2621	for (
1819	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
1820	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
1821	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
1822	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
1823	) {	2627	) {
1824	no strict 'refs';	2628	no strict 'refs';
…		…
1895	=back	2699	=back
1896		2700
1897	=cut	2701	=cut
1898		2702
1899	#############################################################################	2703	#############################################################################
		2704	# the server's init and main functions
1900		2705
1901	=head2 EXTENSION DATABASE SUPPORT	2706	sub load_facedata($) {
		2707	my ($path) = @_;
1902		2708
1903	Crossfire maintains a very simple database for extension use. It can	2709	warn "loading facedata from $path\n";
1904	currently store anything that can be serialised using Storable, which
1905	excludes objects.
1906		2710
1907	The parameter C<$family> should best start with the name of the extension	2711	my $facedata;
1908	using it, it should be unique.	2712	0 < aio_load $path, $facedata
		2713	or die "$path: $!";
1909		2714
1910	=over 4	2715	$facedata = Coro::Storable::thaw $facedata;
1911		2716
1912	=item $hashref = cf::db_get $family	2717	$facedata->{version} == 2
		2718	or cf::cleanup "$path: version mismatch, cannot proceed.";
1913		2719
1914	Return a hashref for use by the extension C<$family>, which can be
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917
1918	=item $value = cf::db_get $family => $key
1919
1920	Returns a single value from the database
1921
1922	=item cf::db_put $family => $hashref
1923
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926
1927	=item cf::db_put $family => $key => $value
1928
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939
1940	=cut
1941
1942	our $DB;
1943
1944	{
1945	my $path = cf::localdir . "/database.pst";
1946
1947	sub db_load() {
1948	$DB = stat $path ? Storable::retrieve $path : { };
1949	}	2720	{
		2721	my $faces = $facedata->{faceinfo};
1950		2722
1951	my $pid;	2723	while (my ($face, $info) = each %$faces) {
1952		2724	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1953	sub db_save() {	2725	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1954	waitpid $pid, 0 if $pid;	2726	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1955	if (0 == ($pid = fork)) {	2727	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1956	$DB->{_meta}{version} = 1;	2728	Coro::cede;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});
1973
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}
1978
1979	sub db_get($;$) {
1980	@_ >= 2
1981	? $DB->{$_[0]}{$_[1]}
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984
1985	sub db_put($$;$) {
1986	if (@_ >= 3) {
1987	$DB->{$_[0]}{$_[1]} = $_[2];
1988	} else {
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993
1994	cf::global->attach (
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	2729	}
1999	);
2000	}
2001		2730
2002	#############################################################################	2731	while (my ($face, $info) = each %$faces) {
2003	# the server's main()	2732	next unless $info->{smooth};
		2733	my $idx = cf::face::find $face
		2734	or next;
		2735	if (my $smooth = cf::face::find $info->{smooth}) {
		2736	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2737	} else {
		2738	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2739	}
		2740	Coro::cede;
		2741	}
		2742	}
		2743
		2744	{
		2745	my $anims = $facedata->{animinfo};
		2746
		2747	while (my ($anim, $info) = each %$anims) {
		2748	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2749	Coro::cede;
		2750	}
		2751
		2752	cf::anim::invalidate_all; # d'oh
		2753	}
		2754
		2755	1
		2756	}
		2757
		2758	sub reload_regions {
		2759	load_resource_file "$MAPDIR/regions"
		2760	or die "unable to load regions file\n";
		2761	}
		2762
		2763	sub reload_facedata {
		2764	load_facedata "$DATADIR/facedata"
		2765	or die "unable to load facedata\n";
		2766	}
		2767
		2768	sub reload_archetypes {
		2769	load_resource_file "$DATADIR/archetypes"
		2770	or die "unable to load archetypes\n";
		2771	#d# NEED to laod twice to resolve forward references
		2772	# this really needs to be done in an extra post-pass
		2773	# (which needs to be synchronous, so solve it differently)
		2774	load_resource_file "$DATADIR/archetypes"
		2775	or die "unable to load archetypes\n";
		2776	}
		2777
		2778	sub reload_treasures {
		2779	load_resource_file "$DATADIR/treasures"
		2780	or die "unable to load treasurelists\n";
		2781	}
		2782
		2783	sub reload_resources {
		2784	warn "reloading resource files...\n";
		2785
		2786	reload_regions;
		2787	reload_facedata;
		2788	#reload_archetypes;#d#
		2789	reload_archetypes;
		2790	reload_treasures;
		2791
		2792	warn "finished reloading resource files\n";
		2793	}
		2794
		2795	sub init {
		2796	reload_resources;
		2797	}
2004		2798
2005	sub cfg_load {	2799	sub cfg_load {
2006	open my $fh, "<:utf8", cf::confdir . "/config"	2800	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	2801	or return;
2008		2802
2009	local $/;	2803	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	2804	*CFG = YAML::Syck::Load <$fh>;
2011		2805
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2806	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013		2807
		2808	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2809	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2810
2014	if (exists $CFG{mlockall}) {	2811	if (exists $CFG{mlockall}) {
2015	eval {	2812	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	2813	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	2814	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	2815	};
2019	warn $@ if $@;	2816	warn $@ if $@;
2020	}	2817	}
2021	}	2818	}
2022		2819
2023	sub main {	2820	sub main {
2024	# we must not ever block the main coroutine	2821	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	2822	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2823	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	2824	(async {
2028	Event::one_event;	2825	Event::one_event;
2029	})->();	2826	})->prio (Coro::PRIO_MAX);
2030	};	2827	};
2031		2828
2032	cfg_load;	2829	cfg_load;
2033	db_load;	2830	db_init;
2034	load_extensions;	2831	load_extensions;
		2832
		2833	$TICK_WATCHER->start;
2035	Event::loop;	2834	Event::loop;
2036	}	2835	}
2037		2836
2038	#############################################################################	2837	#############################################################################
2039	# initialisation	2838	# initialisation and cleanup
2040		2839
		2840	# install some emergency cleanup handlers
		2841	BEGIN {
		2842	for my $signal (qw(INT HUP TERM)) {
		2843	Event->signal (
		2844	reentrant => 0,
		2845	data => WF_AUTOCANCEL,
		2846	signal => $signal,
		2847	prio => 0,
		2848	cb => sub {
		2849	cf::cleanup "SIG$signal";
		2850	},
		2851	);
		2852	}
		2853	}
		2854
		2855	sub write_runtime {
		2856	my $runtime = "$LOCALDIR/runtime";
		2857
		2858	# first touch the runtime file to show we are still running:
		2859	# the fsync below can take a very very long time.
		2860
		2861	IO::AIO::aio_utime $runtime, undef, undef;
		2862
		2863	my $guard = cf::lock_acquire "write_runtime";
		2864
		2865	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2866	or return;
		2867
		2868	my $value = $cf::RUNTIME + 90 + 10;
		2869	# 10 is the runtime save interval, for a monotonic clock
		2870	# 60 allows for the watchdog to kill the server.
		2871
		2872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2873	and return;
		2874
		2875	# always fsync - this file is important
		2876	aio_fsync $fh
		2877	and return;
		2878
		2879	# touch it again to show we are up-to-date
		2880	aio_utime $fh, undef, undef;
		2881
		2882	close $fh
		2883	or return;
		2884
		2885	aio_rename "$runtime~", $runtime
		2886	and return;
		2887
		2888	warn "runtime file written.\n";
		2889
		2890	1
		2891	}
		2892
		2893	sub emergency_save() {
		2894	my $freeze_guard = cf::freeze_mainloop;
		2895
		2896	warn "enter emergency perl save\n";
		2897
		2898	cf::sync_job {
		2899	# use a peculiar iteration method to avoid tripping on perl
		2900	# refcount bugs in for. also avoids problems with players
		2901	# and maps saved/destroyed asynchronously.
		2902	warn "begin emergency player save\n";
		2903	for my $login (keys %cf::PLAYER) {
		2904	my $pl = $cf::PLAYER{$login} or next;
		2905	$pl->valid or next;
		2906	$pl->save;
		2907	}
		2908	warn "end emergency player save\n";
		2909
		2910	warn "begin emergency map save\n";
		2911	for my $path (keys %cf::MAP) {
		2912	my $map = $cf::MAP{$path} or next;
		2913	$map->valid or next;
		2914	$map->save;
		2915	}
		2916	warn "end emergency map save\n";
		2917
		2918	warn "begin emergency database checkpoint\n";
		2919	BDB::db_env_txn_checkpoint $DB_ENV;
		2920	warn "end emergency database checkpoint\n";
		2921	};
		2922
		2923	warn "leave emergency perl save\n";
		2924	}
		2925
		2926	sub post_cleanup {
		2927	my ($make_core) = @_;
		2928
		2929	warn Carp::longmess "post_cleanup backtrace"
		2930	if $make_core;
		2931	}
		2932
2041	sub reload() {	2933	sub do_reload_perl() {
2042	# can/must only be called in main	2934	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	2935	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	2936	warn "can only reload from main coroutine";
2045	return;	2937	return;
2046	}	2938	}
2047		2939
2048	warn "reloading...";	2940	warn "reloading...";
2049		2941
2050	my $guard = freeze_mainloop;	2942	warn "entering sync_job";
		2943
		2944	cf::sync_job {
		2945	cf::write_runtime; # external watchdog should not bark
2051	cf::emergency_save;	2946	cf::emergency_save;
		2947	cf::write_runtime; # external watchdog should not bark
2052		2948
2053	eval {	2949	warn "syncing database to disk";
		2950	BDB::db_env_txn_checkpoint $DB_ENV;
		2951
2054	# if anything goes wrong in here, we should simply crash as we already saved	2952	# if anything goes wrong in here, we should simply crash as we already saved
2055		2953
2056	# cancel all watchers	2954	warn "cancelling all WF_AUTOCANCEL watchers";
2057	for (Event::all_watchers) {	2955	for (Event::all_watchers) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	2956	$_->cancel if $_->data & WF_AUTOCANCEL;
2059	}	2957	}
2060		2958
		2959	warn "flushing outstanding aio requests";
		2960	for (;;) {
		2961	BDB::flush;
		2962	IO::AIO::flush;
		2963	Coro::cede;
		2964	last unless IO::AIO::nreqs || BDB::nreqs;
		2965	warn "iterate...";
		2966	}
		2967
		2968	++$RELOAD;
		2969
2061	# cancel all extension coros	2970	warn "cancelling all extension coros";
2062	$_->cancel for values %EXT_CORO;	2971	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();	2972	%EXT_CORO = ();
2064		2973
2065	# unload all extensions	2974	warn "removing commands";
2066	for (@exts) {	2975	%COMMAND = ();
		2976
		2977	warn "removing ext/exti commands";
		2978	%EXTCMD = ();
		2979	%EXTICMD = ();
		2980
		2981	warn "unloading/nuking all extensions";
		2982	for my $pkg (@EXTS) {
2067	warn "unloading <$_>";	2983	warn "... unloading $pkg";
2068	unload_extension $_;	2984
		2985	if (my $cb = $pkg->can ("unload")) {
		2986	eval {
		2987	$cb->($pkg);
		2988	1
		2989	} or warn "$pkg unloaded, but with errors: $@";
2069	}	2990	}
2070		2991
		2992	warn "... nuking $pkg";
		2993	Symbol::delete_package $pkg;
		2994	}
		2995
2071	# unload all modules loaded from $LIBDIR	2996	warn "unloading all perl modules loaded from $LIBDIR";
2072	while (my ($k, $v) = each %INC) {	2997	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2998	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074		2999
2075	warn "removing <$k>";	3000	warn "... unloading $k";
2076	delete $INC{$k};	3001	delete $INC{$k};
2077		3002
2078	$k =~ s/\.pm$//;	3003	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;	3004	$k =~ s/\//::/g;
2080		3005
…		…
2083	}	3008	}
2084		3009
2085	Symbol::delete_package $k;	3010	Symbol::delete_package $k;
2086	}	3011	}
2087		3012
2088	# sync database to disk
2089	cf::db_sync;
2090	IO::AIO::flush;
2091
2092	# get rid of safe::, as good as possible	3013	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	3014	Symbol::delete_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3015	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		3016
2096	# remove register_script_function callbacks
2097	# TODO
2098
2099	# unload cf.pm "a bit"	3017	warn "unloading cf.pm \"a bit\"";
2100	delete $INC{"cf.pm"};	3018	delete $INC{"cf.pm"};
		3019	delete $INC{"cf/pod.pm"};
2101		3020
2102	# don't, removes xs symbols, too,	3021	# don't, removes xs symbols, too,
2103	# and global variables created in xs	3022	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	3023	#Symbol::delete_package __PACKAGE__;
2105		3024
2106	# reload cf.pm	3025	warn "unload completed, starting to reload now";
		3026
2107	warn "reloading cf.pm";	3027	warn "reloading cf.pm";
2108	require cf;	3028	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3029	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110		3030
2111	# load config and database again	3031	warn "loading config and database again";
2112	cf::cfg_load;	3032	cf::cfg_load;
2113	cf::db_load;
2114		3033
2115	# load extensions
2116	warn "load extensions";	3034	warn "loading extensions";
2117	cf::load_extensions;	3035	cf::load_extensions;
2118		3036
2119	# reattach attachments to objects	3037	warn "reattaching attachments to objects/players";
2120	warn "reattach";	3038	_global_reattach; # objects, sockets
2121	_global_reattach;	3039	warn "reattaching attachments to maps";
2122	};	3040	reattach $_ for values %MAP;
		3041	warn "reattaching attachments to players";
		3042	reattach $_ for values %PLAYER;
2123		3043
2124	if ($@) {	3044	warn "leaving sync_job";
		3045
		3046	1
		3047	} or do {
2125	warn $@;	3048	warn $@;
2126	warn "error while reloading, exiting.";	3049	warn "error while reloading, exiting.";
2127	exit 1;	3050	exit 1;
2128	}	3051	};
2129		3052
2130	warn "reloaded successfully";	3053	warn "reloaded";
2131	};	3054	};
2132		3055
2133	#############################################################################	3056	our $RELOAD_WATCHER; # used only during reload
2134		3057
2135	unless ($LINK_MAP) {	3058	sub reload_perl() {
2136	$LINK_MAP = cf::map::new;	3059	# doing reload synchronously and two reloads happen back-to-back,
		3060	# coro crashes during coro_state_free->destroy here.
2137		3061
2138	$LINK_MAP->width (41);	3062	$RELOAD_WATCHER ||= Event->timer (
2139	$LINK_MAP->height (41);	3063	reentrant => 0,
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,	3064	after => 0,
		3065	data => WF_AUTOCANCEL,
2148	cb => sub {	3066	cb => sub {
2149	$_[0]->w->cancel;	3067	do_reload_perl;
2150		3068	undef $RELOAD_WATCHER;
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});	3069	},
2169		3070	);
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	3071	}
2175
2176	register "<global>", __PACKAGE__;
2177		3072
2178	register_command "reload" => sub {	3073	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	3074	my ($who, $arg) = @_;
2180		3075
2181	if ($who->flag (FLAG_WIZ)) {	3076	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	3077	$who->message ("reloading server.");
		3078	async { reload_perl };
2185	}	3079	}
2186	};	3080	};
2187		3081
2188	unshift @INC, $LIBDIR;	3082	unshift @INC, $LIBDIR;
2189		3083
		3084	my $bug_warning = 0;
		3085
		3086	our @WAIT_FOR_TICK;
		3087	our @WAIT_FOR_TICK_BEGIN;
		3088
		3089	sub wait_for_tick {
		3090	return unless $TICK_WATCHER->is_active;
		3091	return if $Coro::current == $Coro::main;
		3092
		3093	my $signal = new Coro::Signal;
		3094	push @WAIT_FOR_TICK, $signal;
		3095	$signal->wait;
		3096	}
		3097
		3098	sub wait_for_tick_begin {
		3099	return unless $TICK_WATCHER->is_active;
		3100	return if $Coro::current == $Coro::main;
		3101
		3102	my $signal = new Coro::Signal;
		3103	push @WAIT_FOR_TICK_BEGIN, $signal;
		3104	$signal->wait;
		3105	}
		3106
		3107	my $min = 1e6;#d#
		3108	my $avg = 10;
2190	$TICK_WATCHER = Event->timer (	3109	$TICK_WATCHER = Event->timer (
2191	reentrant => 0,	3110	reentrant => 0,
		3111	parked => 1,
2192	prio => 0,	3112	prio => 0,
2193	at => $NEXT_TICK || $TICK,	3113	at => $NEXT_TICK || $TICK,
2194	data => WF_AUTOCANCEL,	3114	data => WF_AUTOCANCEL,
2195	cb => sub {	3115	cb => sub {
		3116	if ($Coro::current != $Coro::main) {
		3117	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3118	unless ++$bug_warning > 10;
		3119	return;
		3120	}
		3121
		3122	$NOW = $tick_start = Event::time;
		3123
2196	cf::server_tick; # one server iteration	3124	cf::server_tick; # one server iteration
		3125
		3126	0 && sync_job {#d#
		3127	for(1..10) {
		3128	my $t = Event::time;
		3129	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3130	or die;
		3131
		3132	$map->width (50);
		3133	$map->height (50);
		3134	$map->alloc;
		3135	$map->_load_objects ("/tmp/x.map", 1);
		3136	my $t = Event::time - $t;
		3137
		3138	#next unless $t < 0.0013;#d#
		3139	if ($t < $min) {
		3140	$min = $t;
		3141	}
		3142	$avg = $avg * 0.99 + $t * 0.01;
		3143	}
		3144	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3145	exit 0;
		3146	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3147	};
		3148
2197	$RUNTIME += $TICK;	3149	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;	3150	$NEXT_TICK += $TICK;
2199		3151
		3152	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3153	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3154	Coro::async_pool {
		3155	write_runtime
		3156	or warn "ERROR: unable to write runtime file: $!";
		3157	};
		3158	}
		3159
		3160	# my $AFTER = Event::time;
		3161	# warn $AFTER - $NOW;#d#
		3162
		3163	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3164	$sig->send;
		3165	}
		3166	while (my $sig = shift @WAIT_FOR_TICK) {
		3167	$sig->send;
		3168	}
		3169
		3170	$NOW = Event::time;
		3171
2200	# if we are delayed by four ticks or more, skip them all	3172	# if we are delayed by four ticks or more, skip them all
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3173	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2202		3174
2203	$TICK_WATCHER->at ($NEXT_TICK);	3175	$TICK_WATCHER->at ($NEXT_TICK);
2204	$TICK_WATCHER->start;	3176	$TICK_WATCHER->start;
		3177
		3178	$LOAD = ($NOW - $tick_start) / $TICK;
		3179	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3180
		3181	_post_tick;
		3182
		3183
2205	},	3184	},
2206	);	3185	);
2207		3186
		3187	{
2208	IO::AIO::max_poll_time $TICK * 0.2;	3188	BDB::max_poll_time $TICK * 0.1;
2209		3189	$BDB_POLL_WATCHER = Event->io (
2210	Event->io (	3190	reentrant => 0,
2211	fd => IO::AIO::poll_fileno,	3191	fd => BDB::poll_fileno,
2212	poll => 'r',	3192	poll => 'r',
2213	prio => 5,	3193	prio => 0,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,	3194	data => WF_AUTOCANCEL,
2220	after => 0,	3195	cb => \&BDB::poll_cb,
2221	interval => 10,	3196	);
2222	cb => sub {	3197	BDB::min_parallel 8;
2223	(Coro::unblock_sub {	3198
2224	write_runtime	3199	BDB::set_sync_prepare {
2225	or warn "ERROR: unable to write runtime file: $!";	3200	my $status;
		3201	my $current = $Coro::current;
		3202	(
		3203	sub {
		3204	$status = $!;
		3205	$current->ready; undef $current;
		3206	},
		3207	sub {
		3208	Coro::schedule while defined $current;
		3209	$! = $status;
		3210	},
		3211	)
		3212	};
		3213
		3214	unless ($DB_ENV) {
		3215	$DB_ENV = BDB::db_env_create;
		3216
		3217	cf::sync_job {
		3218	eval {
		3219	BDB::db_env_open
		3220	$DB_ENV,
		3221	$BDBDIR,
		3222	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3223	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3224	0666;
		3225
		3226	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3227
		3228	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3229	$DB_ENV->set_lk_detect;
		3230	};
		3231
		3232	cf::cleanup "db_env_open(db): $@" if $@;
2226	})->();	3233	};
2227	},	3234	}
2228	);	3235	}
		3236
		3237	{
		3238	IO::AIO::min_parallel 8;
		3239
		3240	undef $Coro::AIO::WATCHER;
		3241	IO::AIO::max_poll_time $TICK * 0.1;
		3242	$AIO_POLL_WATCHER = Event->io (
		3243	reentrant => 0,
		3244	data => WF_AUTOCANCEL,
		3245	fd => IO::AIO::poll_fileno,
		3246	poll => 'r',
		3247	prio => 6,
		3248	cb => \&IO::AIO::poll_cb,
		3249	);
		3250	}
		3251
		3252	my $_log_backtrace;
		3253
		3254	sub _log_backtrace {
		3255	my ($msg, @addr) = @_;
		3256
		3257	$msg =~ s/\n//;
		3258
		3259	# limit the # of concurrent backtraces
		3260	if ($_log_backtrace < 2) {
		3261	++$_log_backtrace;
		3262	async {
		3263	my @bt = fork_call {
		3264	@addr = map { sprintf "%x", $_ } @addr;
		3265	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3266	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3267	or die "addr2line: $!";
		3268
		3269	my @funcs;
		3270	my @res = <$fh>;
		3271	chomp for @res;
		3272	while (@res) {
		3273	my ($func, $line) = splice @res, 0, 2, ();
		3274	push @funcs, "[$func] $line";
		3275	}
		3276
		3277	@funcs
		3278	};
		3279
		3280	LOG llevInfo, "[ABT] $msg\n";
		3281	LOG llevInfo, "[ABT] $_\n" for @bt;
		3282	--$_log_backtrace;
		3283	};
		3284	} else {
		3285	LOG llevInfo, "[ABT] $msg\n";
		3286	LOG llevInfo, "[ABT] [suppressed]\n";
		3287	}
		3288	}
		3289
		3290	# load additional modules
		3291	use cf::pod;
2229		3292
2230	END { cf::emergency_save }	3293	END { cf::emergency_save }
2231		3294
2232	1	3295	1
2233		3296

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