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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.298 by root, Sun Jul 8 14:50:07 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	93
55	our %EXT_CORO;	94	# used to convert map paths into valid unix filenames by replacing / by ∕
		95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
56		100
57	binmode STDOUT;	101	binmode STDOUT;
58	binmode STDERR;	102	binmode STDERR;
59		103
60	# read virtual server time, if available	104	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
65	}	109	}
66		110
67	mkdir cf::localdir;	111	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		113
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
76		117
77	#############################################################################	118	#############################################################################
78		119
79	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
80		121
…		…
87	=item $cf::RUNTIME	128	=item $cf::RUNTIME
88		129
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	131	every server tick.
91		132
92	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		136
94	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
96		141
97	=item $cf::NOW	142	=item $cf::NOW
98		143
99	The time of the last (current) server tick.	144	The time of the last (current) server tick.
100		145
101	=item $cf::TICK	146	=item $cf::TICK
102		147
103	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
104		159
105	=item %cf::CFG	160	=item %cf::CFG
106		161
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		170
110	=back	171	=back
111		172
112	=cut	173	=cut
113		174
114	BEGIN {	175	BEGIN {
115	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	177	my $msg = join "", @_;
117	utf8::encode $msg;
118		178
119	$msg .= "\n"	179	$msg .= "\n"
120	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
121		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
123	};	186	};
124	}	187	}
125		188
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		196
133	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	198	# within the Safe compartment.
135	for my $pkg (qw(	199	for my $pkg (qw(
136	cf::global cf::attachable	200	cf::global cf::attachable
…		…
145		209
146	$Event::DIED = sub {	210	$Event::DIED = sub {
147	warn "error in event callback: @_";	211	warn "error in event callback: @_";
148	};	212	};
149		213
150	my %ext_pkg;	214	#############################################################################
151	my @exts;
152	my @hook;
153		215
154	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
155		217
156	=over 4	218	=over 4
157		219
158	=cut	220	=item dumpval $ref
159		221
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
161		242
162	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
163		244
164	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
165		246
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
174		248
175	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
176		250
177	=cut	251	=cut
178		252
179	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
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 $fh	414	sub fork_call(&@) {
349	and return;	415	my ($cb, @args) = @_;
350		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
351	close $fh	423	close $fh2;
352	or return;
353		424
354	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
355	and return;	426	warn "pst<$res>" unless $res =~ /^pst/;
		427	$res = Coro::Storable::thaw $res;
356		428
		429	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		430
		431	Carp::confess $$res unless "ARRAY" eq ref $res;
		432
		433	return wantarray ? @$res : $res->[-1];
		434	} else {
		435	reset_signals;
		436	local $SIG{__WARN__};
		437	local $SIG{__DIE__};
		438	local $Coro::idle;
		439	$Coro::current->prio (Coro::PRIO_MAX);
		440	eval {
		441	close $fh1;
		442
		443	my @res = eval { $cb->(@args) };
		444
		445	open my $fh, ">", \my $buf
		446	or die "fork_call: cannot open fh-to-buf in child : $!";
		447	Storable::store_fd +($@ ? \"$@" : \@res), $fh;
		448	close $fh;
		449
		450	warn "writing ", length $buf;
		451	my $x;
		452	(length $buf) == ($x = syswrite $fh2, $buf)
		453	or warn "error writing ".(length $buf)." != $x\n";
		454	close $fh2;
		455	};
		456
		457	warn $@ if $@;
		458	_exit 0;
357	1	459	}
		460	}
		461
		462	=item $value = cf::db_get $family => $key
		463
		464	Returns a single value from the environment database.
		465
		466	=item cf::db_put $family => $key => $value
		467
		468	Stores the given C<$value> in the family. It can currently store binary
		469	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		470
		471	=cut
		472
		473	our $DB;
		474
		475	sub db_init {
		476	unless ($DB) {
		477	$DB = BDB::db_create $DB_ENV;
		478
		479	cf::sync_job {
		480	eval {
		481	$DB->set_flags (BDB::CHKSUM);
		482
		483	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		484	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		485	cf::cleanup "db_open(db): $!" if $!;
		486	};
		487	cf::cleanup "db_open(db): $@" if $@;
		488	};
		489	}
		490	}
		491
		492	sub db_get($$) {
		493	my $key = "$_[0]/$_[1]";
		494
		495	cf::sync_job {
		496	BDB::db_get $DB, undef, $key, my $data;
		497
		498	$! ? ()
		499	: $data
		500	}
		501	}
		502
		503	sub db_put($$$) {
		504	BDB::dbreq_pri 4;
		505	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		506	}
		507
		508	=item cf::cache $id => [$paths...], $processversion => $process
		509
		510	Generic caching function that returns the value of the resource $id,
		511	caching and regenerating as required.
		512
		513	This function can block.
		514
		515	=cut
		516
		517	sub cache {
		518	my ($id, $src, $processversion, $process) = @_;
		519
		520	my $meta =
		521	join "\x00",
		522	$processversion,
		523	map {
		524	aio_stat $_
		525	and Carp::croak "$_: $!";
		526
		527	($_, (stat _)[7,9])
		528	} @$src;
		529
		530	my $dbmeta = db_get cache => "$id/meta";
		531	if ($dbmeta ne $meta) {
		532	# changed, we may need to process
		533
		534	my @data;
		535	my $md5;
		536
		537	for (0 .. $#$src) {
		538	0 <= aio_load $src->[$_], $data[$_]
		539	or Carp::croak "$src->[$_]: $!";
		540	}
		541
		542	# if processing is expensive, check
		543	# checksum first
		544	if (1) {
		545	$md5 =
		546	join "\x00",
		547	$processversion,
		548	map {
		549	Coro::cede;
		550	($src->[$_], Digest::MD5::md5_hex $data[$_])
		551	} 0.. $#$src;
		552
		553
		554	my $dbmd5 = db_get cache => "$id/md5";
		555	if ($dbmd5 eq $md5) {
		556	db_put cache => "$id/meta", $meta;
		557
		558	return db_get cache => "$id/data";
		559	}
		560	}
		561
		562	my $t1 = Time::HiRes::time;
		563	my $data = $process->(\@data);
		564	my $t2 = Time::HiRes::time;
		565
		566	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		567
		568	db_put cache => "$id/data", $data;
		569	db_put cache => "$id/md5" , $md5;
		570	db_put cache => "$id/meta", $meta;
		571
		572	return $data;
		573	}
		574
		575	db_get cache => "$id/data"
		576	}
		577
		578	=item cf::datalog type => key => value, ...
		579
		580	Log a datalog packet of the given type with the given key-value pairs.
		581
		582	=cut
		583
		584	sub datalog($@) {
		585	my ($type, %kv) = @_;
		586	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
358	}	587	}
359		588
360	=back	589	=back
361		590
362	=cut	591	=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		592
484	#############################################################################	593	#############################################################################
485		594
486	=head2 ATTACHABLE OBJECTS	595	=head2 ATTACHABLE OBJECTS
487		596
…		…
489	attach callbacks/event handlers (a collection of which is called an "attachment")	598	attach callbacks/event handlers (a collection of which is called an "attachment")
490	to it. All such attachable objects support the following methods.	599	to it. All such attachable objects support the following methods.
491		600
492	In the following description, CLASS can be any of C<global>, C<object>	601	In the following description, CLASS can be any of C<global>, C<object>
493	C<player>, C<client> or C<map> (i.e. the attachable objects in	602	C<player>, C<client> or C<map> (i.e. the attachable objects in
494	crossfire+).	603	Crossfire TRT).
495		604
496	=over 4	605	=over 4
497		606
498	=item $attachable->attach ($attachment, key => $value...)	607	=item $attachable->attach ($attachment, key => $value...)
499		608
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	722	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	723	our @CB_MAP = ();
615		724
616	my %attachment;	725	my %attachment;
617		726
		727	sub cf::attachable::thawer_merge {
		728	# simply override everything except _meta
		729	local $_[0]{_meta};
		730	%{$_[0]} = %{$_[1]};
		731	}
		732
618	sub _attach_cb($$$$) {	733	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	734	my ($registry, $event, $prio, $cb) = @_;
620		735
621	use sort 'stable';	736	use sort 'stable';
622		737
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	771	$registry = $CB_TYPE[$object_type] ||= [];
657		772
658	} elsif ($type eq "subtype") {	773	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	774	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	775	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	776	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		777
663	} elsif ($type eq "package") {	778	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	779	my $pkg = shift @arg;
665		780
666	while (my ($name, $id) = each %cb_id) {	781	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	810	_attach $registry, $klass, @attach;
696	}	811	}
697		812
698	$obj->{$name} = \%arg;	813	$obj->{$name} = \%arg;
699	} else {	814	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	815	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	816	}
702		817
703	$obj->{_attachment}{$name} = undef;	818	$obj->{_attachment}{$name} = undef;
704	}	819	}
705		820
…		…
707	if (ref $_[0]) {	822	if (ref $_[0]) {
708	_object_attach @_;	823	_object_attach @_;
709	} else {	824	} else {
710	_attach shift->_attach_registry, @_;	825	_attach shift->_attach_registry, @_;
711	}	826	}
		827	_recalc_want;
712	};	828	};
713		829
714	# all those should be optimised	830	# all those should be optimised
715	sub cf::attachable::detach {	831	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	832	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	835	delete $obj->{_attachment}{$name};
720	reattach ($obj);	836	reattach ($obj);
721	} else {	837	} else {
722	Carp::croak "cannot, currently, detach class attachments";	838	Carp::croak "cannot, currently, detach class attachments";
723	}	839	}
		840	_recalc_want;
724	};	841	};
725		842
726	sub cf::attachable::attached {	843	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
728		845
…		…
793	# object support	910	# object support
794		911
795	sub reattach {	912	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	913	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	914	my ($obj) = @_;
		915
		916	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		917
799	my $registry = $obj->registry;	918	my $registry = $obj->registry;
800		919
801	@$registry = ();	920	@$registry = ();
802		921
…		…
849	$filename, length $$rdata, scalar @$objs;	968	$filename, length $$rdata, scalar @$objs;
850		969
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	970	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	971	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	972	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	973	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	974	close $fh;
856		975
857	if (@$objs) {	976	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	977	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	978	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	979	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	980	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	981	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	982	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	983	aio_rename "$filename.pst~", "$filename.pst";
865	}	984	}
866	} else {	985	} else {
867	aio_unlink "$filename.pst";	986	aio_unlink "$filename.pst";
…		…
899	or return;	1018	or return;
900	$av = eval { (Storable::thaw $av)->{objs} };	1019	$av = eval { (Storable::thaw $av)->{objs} };
901	}	1020	}
902		1021
903	warn sprintf "loading %s (%d)\n",	1022	warn sprintf "loading %s (%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1023	$filename, length $data, scalar @{$av || []};
905	return ($data, $av);	1024	return ($data, $av);
906	}	1025	}
		1026
		1027	=head2 COMMAND CALLBACKS
		1028
		1029	=over 4
		1030
		1031	=cut
907		1032
908	#############################################################################	1033	#############################################################################
909	# command handling &c	1034	# command handling &c
910		1035
911	=item cf::register_command $name => \&callback($ob,$args);	1036	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1049	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1050	}
926		1051
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1052	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1053
929	Register a callbackf ro execution when the client sends an extcmd packet.	1054	Register a callback for execution when the client sends an (synchronous)
		1055	extcmd packet. Ext commands will be processed in the order they are
		1056	received by the server, like other user commands. The first argument is
		1057	the logged-in player. Ext commands can only be processed after a player
		1058	has logged in successfully.
930		1059
931	If the callback returns something, it is sent back as if reply was being	1060	If the callback returns something, it is sent back as if reply was being
932	called.	1061	called.
933		1062
		1063	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1064
		1065	Register a callback for execution when the client sends an (asynchronous)
		1066	exticmd packet. Exti commands are processed by the server as soon as they
		1067	are received, i.e. out of order w.r.t. other commands. The first argument
		1068	is a client socket. Exti commands can be received anytime, even before
		1069	log-in.
		1070
		1071	If the callback returns something, it is sent back as if reply was being
		1072	called.
		1073
934	=cut	1074	=cut
935		1075
936	sub register_extcmd {	1076	sub register_extcmd {
937	my ($name, $cb) = @_;	1077	my ($name, $cb) = @_;
938		1078
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1079	$EXTCMD{$name} = $cb;
		1080	}
		1081
		1082	sub register_exticmd {
		1083	my ($name, $cb) = @_;
		1084
		1085	$EXTICMD{$name} = $cb;
943	}	1086	}
944		1087
945	cf::player->attach (	1088	cf::player->attach (
946	on_command => sub {	1089	on_command => sub {
947	my ($pl, $name, $params) = @_;	1090	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1099	cf::override;
957	},	1100	},
958	on_extcmd => sub {	1101	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1102	my ($pl, $buf) = @_;
960		1103
961	my $msg = eval { from_json $buf };	1104	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1105
963	if (ref $msg) {	1106	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1107	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1108	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	1109	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	1110	}
968	}	1111	}
969	} else {	1112	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1113	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		1115
973	cf::override;	1116	cf::override;
974	},	1117	},
975	);	1118	);
976		1119
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1120	sub load_extensions {
		1121	cf::sync_job {
		1122	my %todo;
		1123
		1124	for my $path (<$LIBDIR/*.ext>) {
		1125	next unless -r $path;
		1126
		1127	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1128	my $base = $1;
		1129	my $pkg = $1;
		1130	$pkg =~ s/[^[:word:]]/_/g;
		1131	$pkg = "ext::$pkg";
		1132
		1133	open my $fh, "<:utf8", $path
		1134	or die "$path: $!";
		1135
		1136	my $source = do { local $/; <$fh> };
		1137
		1138	my %ext = (
		1139	path => $path,
		1140	base => $base,
		1141	pkg => $pkg,
		1142	);
		1143
		1144	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1145	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1146
		1147	$ext{source} =
		1148	"package $pkg; use strict; use utf8;\n"
		1149	. "#line 1 \"$path\"\n{\n"
		1150	. $source
		1151	. "\n};\n1";
		1152
		1153	$todo{$base} = \%ext;
		1154	}
		1155
		1156	my %done;
		1157	while (%todo) {
		1158	my $progress;
		1159
		1160	while (my ($k, $v) = each %todo) {
		1161	for (split /,\s*/, $v->{meta}{depends}) {
		1162	goto skip
		1163	unless exists $done{$_};
		1164	}
		1165
		1166	warn "... loading '$k' into '$v->{pkg}'\n";
		1167
		1168	unless (eval $v->{source}) {
		1169	my $msg = $@ ? "$v->{path}: $@\n"
		1170	: "$v->{base}: extension inactive.\n";
		1171
		1172	if (exists $v->{meta}{mandatory}) {
		1173	warn $msg;
		1174	warn "mandatory extension failed to load, exiting.\n";
		1175	exit 1;
		1176	}
		1177
		1178	warn $msg;
		1179	}
		1180
		1181	$done{$k} = delete $todo{$k};
		1182	push @EXTS, $v->{pkg};
		1183	$progress = 1;
		1184	}
		1185
		1186	skip:
		1187	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1188	unless $progress;
		1189	}
		1190	};
		1191	}
		1192
		1193	#############################################################################
		1194
		1195	=back
		1196
		1197	=head2 CORE EXTENSIONS
		1198
		1199	Functions and methods that extend core crossfire objects.
		1200
		1201	=cut
		1202
		1203	package cf::player;
		1204
		1205	use Coro::AIO;
		1206
		1207	=head3 cf::player
		1208
		1209	=over 4
		1210
		1211	=item cf::player::find $login
		1212
		1213	Returns the given player object, loading it if necessary (might block).
		1214
		1215	=cut
		1216
		1217	sub playerdir($) {
		1218	"$PLAYERDIR/"
		1219	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1220	}
		1221
		1222	sub path($) {
		1223	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1224
		1225	(playerdir $login) . "/playerdata"
		1226	}
		1227
		1228	sub find_active($) {
		1229	$cf::PLAYER{$_[0]}
		1230	and $cf::PLAYER{$_[0]}->active
		1231	and $cf::PLAYER{$_[0]}
		1232	}
		1233
		1234	sub exists($) {
		1235	my ($login) = @_;
		1236
		1237	$cf::PLAYER{$login}
		1238	or cf::sync_job { !aio_stat path $login }
		1239	}
		1240
		1241	sub find($) {
		1242	return $cf::PLAYER{$_[0]} || do {
		1243	my $login = $_[0];
		1244
		1245	my $guard = cf::lock_acquire "user_find:$login";
		1246
		1247	$cf::PLAYER{$_[0]} || do {
		1248	# rename old playerfiles to new ones
		1249	#TODO: remove when no longer required
		1250	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1251	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1252	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1253	aio_unlink +(playerdir $login) . "/$login.pl";
		1254
		1255	my $pl = load_pl path $login
		1256	or return;
		1257	$cf::PLAYER{$login} = $pl
		1258	}
		1259	}
		1260	}
		1261
		1262	sub save($) {
		1263	my ($pl) = @_;
		1264
		1265	return if $pl->{deny_save};
		1266
		1267	my $path = path $pl;
		1268	my $guard = cf::lock_acquire "user_save:$path";
		1269
		1270	return if $pl->{deny_save};
		1271
		1272	aio_mkdir playerdir $pl, 0770;
		1273	$pl->{last_save} = $cf::RUNTIME;
		1274
		1275	$pl->save_pl ($path);
		1276	Coro::cede;
		1277	}
		1278
		1279	sub new($) {
		1280	my ($login) = @_;
		1281
		1282	my $self = create;
		1283
		1284	$self->ob->name ($login);
		1285	$self->{deny_save} = 1;
		1286
		1287	$cf::PLAYER{$login} = $self;
		1288
		1289	$self
		1290	}
		1291
		1292	=item $pl->quit_character
		1293
		1294	Nukes the player without looking back. If logged in, the connection will
		1295	be destroyed. May block for a long time.
		1296
		1297	=cut
		1298
		1299	sub quit_character {
		1300	my ($pl) = @_;
		1301
		1302	my $name = $pl->ob->name;
		1303
		1304	$pl->{deny_save} = 1;
		1305	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1306
		1307	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1308	$pl->deactivate;
		1309	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1310	$pl->ns->destroy if $pl->ns;
		1311
		1312	my $path = playerdir $pl;
		1313	my $temp = "$path~$cf::RUNTIME~deleting~";
		1314	aio_rename $path, $temp;
		1315	delete $cf::PLAYER{$pl->ob->name};
		1316	$pl->destroy;
		1317
		1318	my $prefix = qr<^~\Q$name\E/>;
		1319
		1320	# nuke player maps
		1321	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1322
		1323	IO::AIO::aio_rmtree $temp;
		1324	}
		1325
		1326	=item $pl->kick
		1327
		1328	Kicks a player out of the game. This destroys the connection.
		1329
		1330	=cut
		1331
		1332	sub kick {
		1333	my ($pl, $kicker) = @_;
		1334
		1335	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1336	$pl->killer ("kicked");
		1337	$pl->ns->destroy;
		1338	}
		1339
		1340	=item cf::player::list_logins
		1341
		1342	Returns am arrayref of all valid playernames in the system, can take a
		1343	while and may block, so not sync_job-capable, ever.
		1344
		1345	=cut
		1346
		1347	sub list_logins {
		1348	my $dirs = aio_readdir $PLAYERDIR
		1349	or return [];
		1350
		1351	my @logins;
		1352
		1353	for my $login (@$dirs) {
		1354	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1355	aio_read $fh, 0, 512, my $buf, 0 or next;
		1356	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1357
		1358	utf8::decode $login;
		1359	push @logins, $login;
		1360	}
		1361
		1362	\@logins
		1363	}
		1364
		1365	=item $player->maps
		1366
		1367	Returns an arrayref of map paths that are private for this
		1368	player. May block.
		1369
		1370	=cut
		1371
		1372	sub maps($) {
		1373	my ($pl) = @_;
		1374
		1375	$pl = ref $pl ? $pl->ob->name : $pl;
		1376
		1377	my $files = aio_readdir playerdir $pl
		1378	or return;
		1379
		1380	my @paths;
		1381
		1382	for (@$files) {
		1383	utf8::decode $_;
		1384	next if /\.(?:pl|pst)$/;
		1385	next unless /^$PATH_SEP/o;
		1386
		1387	push @paths, cf::map::normalise "~$pl/$_";
		1388	}
		1389
		1390	\@paths
		1391	}
		1392
		1393	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1394
		1395	Expand crossfire pod fragments into protocol xml.
		1396
		1397	=cut
		1398
		1399	sub expand_cfpod {
		1400	((my $self), (local $_)) = @_;
		1401
		1402	# escape & and <
		1403	s/&/&amp;/g;
		1404	s/(?<![BIUGH])</&lt;/g;
		1405
		1406	# this is buggy, it needs to properly take care of nested <'s
		1407
		1408	1 while
		1409	# replace B<>, I<>, U<> etc.
		1410	s/B<([^\>]*)>/<b>$1<\/b>/
		1411	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1412	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1413	# replace G<male|female> tags
		1414	|| s{G<([^>|]*)\|([^>]*)>}{
		1415	$self->gender ? $2 : $1
		1416	}ge
		1417	# replace H<hint text>
		1418	|| s{H<([^\>]*)>}
		1419	{
		1420	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1421	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1422	"")
		1423	[$self->{hintmode}]
		1424	}ge;
		1425
		1426	# create single paragraphs (very hackish)
		1427	s/(?<=\S)\n(?=\w)/ /g;
		1428
		1429	# compress some whitespace
		1430	s/\s+\n/\n/g; # ws line-ends
		1431	s/\n\n+/\n/g; # double lines
		1432	s/^\n+//; # beginning lines
		1433	s/\n+$//; # ending lines
		1434
		1435	$_
		1436	}
		1437
		1438	sub hintmode {
		1439	$_[0]{hintmode} = $_[1] if @_ > 1;
		1440	$_[0]{hintmode}
		1441	}
		1442
		1443	=item $player->ext_reply ($msgid, %msg)
		1444
		1445	Sends an ext reply to the player.
		1446
		1447	=cut
		1448
		1449	sub ext_reply($$%) {
		1450	my ($self, $id, %msg) = @_;
		1451
		1452	$msg{msgid} = $id;
		1453	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1454	}
		1455
		1456	=item $player->ext_event ($type, %msg)
		1457
		1458	Sends an ext event to the client.
		1459
		1460	=cut
		1461
		1462	sub ext_event($$%) {
		1463	my ($self, $type, %msg) = @_;
		1464
		1465	$self->ns->ext_event ($type, %msg);
		1466	}
		1467
		1468	=head3 cf::region
		1469
		1470	=over 4
		1471
		1472	=cut
		1473
		1474	package cf::region;
		1475
		1476	=item cf::region::find_by_path $path
		1477
		1478	Tries to decuce the likely region for a map knowing only its path.
		1479
		1480	=cut
		1481
		1482	sub find_by_path($) {
984	my ($path) = @_;	1483	my ($path) = @_;
985		1484
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1485	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1486
992	warn "loading '$path' into '$pkg'\n";	1487	for my $region (list) {
993		1488	if ($region->match && $path =~ $region->match) {
994	open my $fh, "<:utf8", $path	1489	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1490	if $region->specificity > $specificity;
996		1491	}
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	# }	1492	}
1026		1493
1027	# remove commands	1494	$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	}	1495	}
1133		1496
1134	=back	1497	=back
1135
1136		1498
1137	=head3 cf::map	1499	=head3 cf::map
1138		1500
1139	=over 4	1501	=over 4
1140		1502
…		…
1143	package cf::map;	1505	package cf::map;
1144		1506
1145	use Fcntl;	1507	use Fcntl;
1146	use Coro::AIO;	1508	use Coro::AIO;
1147		1509
		1510	use overload
		1511	'""' => \&as_string,
		1512	fallback => 1;
		1513
1148	our $MAX_RESET = 3600;	1514	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1515	our $DEFAULT_RESET = 3000;
1150		1516
1151	sub generate_random_map {	1517	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1518	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1519	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1520	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1521	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1522	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1523	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1524	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1525	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1526	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1527	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1528	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1529	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1530	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1531	(cf::region::find $rmp->{region}), $rmp->{custom}
		1532	)
		1533	}
		1534
		1535	=item cf::map->register ($regex, $prio)
		1536
		1537	Register a handler for the map path matching the given regex at the
		1538	givne priority (higher is better, built-in handlers have priority 0, the
		1539	default).
		1540
		1541	=cut
		1542
		1543	sub register {
		1544	my (undef, $regex, $prio) = @_;
		1545	my $pkg = caller;
		1546
		1547	no strict;
		1548	push @{"$pkg\::ISA"}, __PACKAGE__;
		1549
		1550	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1551	}
		1552
		1553	# also paths starting with '/'
		1554	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1555
		1556	sub thawer_merge {
		1557	my ($self, $merge) = @_;
		1558
		1559	# we have to keep some variables in memory intact
		1560	local $self->{path};
		1561	local $self->{load_path};
		1562
		1563	$self->SUPER::thawer_merge ($merge);
		1564	}
		1565
		1566	sub normalise {
		1567	my ($path, $base) = @_;
		1568
		1569	$path = "$path"; # make sure its a string
		1570
		1571	$path =~ s/\.map$//;
		1572
		1573	# map plan:
		1574	#
		1575	# /! non-realised random map exit (special hack!)
		1576	# {... are special paths that are not being touched
		1577	# ?xxx/... are special absolute paths
		1578	# ?random/... random maps
		1579	# /... normal maps
		1580	# ~user/... per-player map of a specific user
		1581
		1582	$path =~ s/$PATH_SEP/\//go;
		1583
		1584	# treat it as relative path if it starts with
		1585	# something that looks reasonable
		1586	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1587	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1588
		1589	$base =~ s{[^/]+/?$}{};
		1590	$path = "$base/$path";
		1591	}
		1592
		1593	for ($path) {
		1594	redo if s{//}{/};
		1595	redo if s{/\.?/}{/};
		1596	redo if s{/[^/]+/\.\./}{/};
		1597	}
		1598
		1599	$path
		1600	}
		1601
		1602	sub new_from_path {
		1603	my (undef, $path, $base) = @_;
		1604
		1605	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1606
		1607	$path = normalise $path, $base;
		1608
		1609	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1610	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1611	my $self = bless cf::map::new, $pkg;
		1612	$self->{path} = $path; $self->path ($path);
		1613	$self->init; # pass $1 etc.
		1614	return $self;
		1615	}
		1616	}
		1617
		1618	Carp::carp "unable to resolve path '$path' (base '$base').";
		1619	()
		1620	}
		1621
		1622	sub init {
		1623	my ($self) = @_;
		1624
		1625	$self
		1626	}
		1627
		1628	sub as_string {
		1629	my ($self) = @_;
		1630
		1631	"$self->{path}"
		1632	}
		1633
		1634	# the displayed name, this is a one way mapping
		1635	sub visible_name {
		1636	&as_string
		1637	}
		1638
		1639	# the original (read-only) location
		1640	sub load_path {
		1641	my ($self) = @_;
		1642
		1643	"$MAPDIR/$self->{path}.map"
		1644	}
		1645
		1646	# the temporary/swap location
		1647	sub save_path {
		1648	my ($self) = @_;
		1649
		1650	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1651	"$TMPDIR/$path.map"
		1652	}
		1653
		1654	# the unique path, undef == no special unique path
		1655	sub uniq_path {
		1656	my ($self) = @_;
		1657
		1658	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1659	"$UNIQUEDIR/$path"
1168	}	1660	}
1169		1661
1170	# and all this just because we cannot iterate over	1662	# and all this just because we cannot iterate over
1171	# all maps in C++...	1663	# all maps in C++...
1172	sub change_all_map_light {	1664	sub change_all_map_light {
…		…
1174		1666
1175	$_->change_map_light ($change)	1667	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1668	for grep $_->outdoor, values %cf::MAP;
1177	}	1669	}
1178		1670
		1671	sub decay_objects {
		1672	my ($self) = @_;
		1673
		1674	return if $self->{deny_reset};
		1675
		1676	$self->do_decay_objects;
		1677	}
		1678
		1679	sub unlink_save {
		1680	my ($self) = @_;
		1681
		1682	utf8::encode (my $save = $self->save_path);
		1683	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1684	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1685	}
		1686
1179	sub try_load_header($) {	1687	sub load_header_from($) {
1180	my ($path) = @_;	1688	my ($self, $path) = @_;
1181		1689
1182	utf8::encode $path;	1690	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1691	#aio_open $path, O_RDONLY, 0
		1692	# or return;
		1693
		1694	$self->_load_header ($path)
1184	or return;	1695	or return;
1185		1696
1186	my $map = cf::map::new	1697	$self->{load_path} = $path;
		1698
		1699	1
		1700	}
		1701
		1702	sub load_header_orig {
		1703	my ($self) = @_;
		1704
		1705	$self->load_header_from ($self->load_path)
		1706	}
		1707
		1708	sub load_header_temp {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->save_path)
		1712	}
		1713
		1714	sub prepare_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->last_access ((delete $self->{last_access})
		1718	|| $cf::RUNTIME); #d#
		1719	# safety
		1720	$self->{instantiate_time} = $cf::RUNTIME
		1721	if $self->{instantiate_time} > $cf::RUNTIME;
		1722	}
		1723
		1724	sub prepare_orig {
		1725	my ($self) = @_;
		1726
		1727	$self->{load_original} = 1;
		1728	$self->{instantiate_time} = $cf::RUNTIME;
		1729	$self->last_access ($cf::RUNTIME);
		1730	$self->instantiate;
		1731	}
		1732
		1733	sub load_header {
		1734	my ($self) = @_;
		1735
		1736	if ($self->load_header_temp) {
		1737	$self->prepare_temp;
		1738	} else {
		1739	$self->load_header_orig
1187	or return;	1740	or return;
		1741	$self->prepare_orig;
		1742	}
1188		1743
1189	$map->load_header ($path)	1744	$self->{deny_reset} = 1
1190	or return;	1745	if $self->no_reset;
1191		1746
1192	$map->{load_path} = $path;	1747	$self->default_region (cf::region::find_by_path $self->{path})
		1748	unless $self->default_region;
1193		1749
1194	$map	1750	1
1195	}	1751	}
1196		1752
1197	sub find;	1753	sub find;
1198	sub find {	1754	sub find {
1199	my ($path, $origin) = @_;	1755	my ($path, $origin) = @_;
1200		1756
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1757	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1758
1206	cf::lock_wait "map_find:$key";	1759	cf::lock_wait "map_find:$path";
1207		1760
1208	$cf::MAP{$key} || do {	1761	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1762	my $guard = cf::lock_acquire "map_find:$path";
1210		1763	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1764	or return;
1228		1765
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1766	$map->{last_save} = $cf::RUNTIME;
1241		1767
1242	if ($map->should_reset) {	1768	$map->load_header
		1769	or return;
		1770
		1771	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1772	# doing this can freeze the server in a sync job, obviously
		1773	#$cf::WAIT_FOR_TICK->wait;
1243	$map->reset;	1774	$map->reset;
1244	undef $guard;	1775	undef $guard;
1245	$map = find $path	1776	return find $path;
1246	or return;
1247	}	1777	}
1248		1778
1249	$cf::MAP{$key} = $map	1779	$cf::MAP{$path} = $map
1250	}	1780	}
1251	}	1781	}
		1782
		1783	sub pre_load { }
		1784	sub post_load { }
1252		1785
1253	sub load {	1786	sub load {
1254	my ($self) = @_;	1787	my ($self) = @_;
1255		1788
		1789	local $self->{deny_reset} = 1; # loading can take a long time
		1790
1256	my $path = $self->{path};	1791	my $path = $self->{path};
		1792
		1793	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1794	my $guard = cf::lock_acquire "map_load:$path";
1258		1795
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1796	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1797
1261	$self->in_memory (cf::MAP_LOADING);	1798	$self->in_memory (cf::MAP_LOADING);
1262		1799
1263	$self->alloc;	1800	$self->alloc;
		1801
		1802	$self->pre_load;
		1803	Coro::cede;
		1804
1264	$self->load_objects ($self->{load_path}, 1)	1805	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1806	or return;
1266		1807
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1808	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1809	if delete $self->{load_original};
1269		1810
1270	if (my $uniq = $path->uniq_path) {	1811	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1812	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1813	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1814	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1815	$self->_load_objects ($uniq, 0);
1275	}	1816	}
1276	}	1817	}
1277		1818
		1819	Coro::cede;
1278	# now do the right thing for maps	1820	# now do the right thing for maps
1279	$self->link_multipart_objects;	1821	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1822	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1823	unless $self->difficulty;
		1824	Coro::cede;
		1825
		1826	unless ($self->{deny_activate}) {
		1827	$self->decay_objects;
		1828	$self->fix_auto_apply;
		1829	$self->update_buttons;
		1830	Coro::cede;
		1831	$self->set_darkness_map;
		1832	Coro::cede;
1291	$self->activate;	1833	$self->activate;
1292	}	1834	}
1293		1835
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1836	$self->in_memory (cf::MAP_IN_MEMORY);
		1837	}
		1838
		1839	$self->post_load;
		1840	}
		1841
		1842	sub customise_for {
		1843	my ($self, $ob) = @_;
		1844
		1845	return find "~" . $ob->name . "/" . $self->{path}
		1846	if $self->per_player;
		1847
		1848	# return find "?party/" . $ob->name . "/" . $self->{path}
		1849	# if $self->per_party;
		1850
		1851	$self
		1852	}
		1853
		1854	# find and load all maps in the 3x3 area around a map
		1855	sub load_diag {
		1856	my ($map) = @_;
		1857
		1858	my @diag; # diagonal neighbours
		1859
		1860	for (0 .. 3) {
		1861	my $neigh = $map->tile_path ($_)
		1862	or next;
		1863	$neigh = find $neigh, $map
		1864	or next;
		1865	$neigh->load;
		1866
		1867	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1868	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1869	}
		1870
		1871	for (@diag) {
		1872	my $neigh = find @$_
		1873	or next;
		1874	$neigh->load;
		1875	}
1295	}	1876	}
1296		1877
1297	sub find_sync {	1878	sub find_sync {
1298	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1299		1880
1300	cf::sync_job { cf::map::find $path, $origin }	1881	cf::sync_job { find $path, $origin }
1301	}	1882	}
1302		1883
1303	sub do_load_sync {	1884	sub do_load_sync {
1304	my ($map) = @_;	1885	my ($map) = @_;
1305		1886
1306	cf::sync_job { $map->load };	1887	cf::sync_job { $map->load };
1307	}	1888	}
1308		1889
		1890	our %MAP_PREFETCH;
		1891	our $MAP_PREFETCHER = undef;
		1892
		1893	sub find_async {
		1894	my ($path, $origin) = @_;
		1895
		1896	$path = normalise $path, $origin && $origin->{path};
		1897
		1898	if (my $map = $cf::MAP{$path}) {
		1899	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1900	}
		1901
		1902	undef $MAP_PREFETCH{$path};
		1903	$MAP_PREFETCHER ||= cf::async {
		1904	while (%MAP_PREFETCH) {
		1905	for my $path (keys %MAP_PREFETCH) {
		1906	my $map = find $path
		1907	or next;
		1908	$map->load;
		1909
		1910	delete $MAP_PREFETCH{$path};
		1911	}
		1912	}
		1913	undef $MAP_PREFETCHER;
		1914	};
		1915	$MAP_PREFETCHER->prio (6);
		1916
		1917	()
		1918	}
		1919
1309	sub save {	1920	sub save {
1310	my ($self) = @_;	1921	my ($self) = @_;
1311		1922
		1923	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1924
1312	$self->{last_save} = $cf::RUNTIME;	1925	$self->{last_save} = $cf::RUNTIME;
1313		1926
1314	return unless $self->dirty;	1927	return unless $self->dirty;
1315		1928
1316	my $save = $self->{path}->save_path; utf8::encode $save;	1929	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1930	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		1931
1319	$self->{load_path} = $save;	1932	$self->{load_path} = $save;
1320		1933
1321	return if $self->{deny_save};	1934	return if $self->{deny_save};
1322		1935
1323	local $self->{last_access} = $self->last_access;#d#	1936	local $self->{last_access} = $self->last_access;#d#
1324		1937
		1938	cf::async {
		1939	$_->contr->save for $self->players;
		1940	};
		1941
1325	if ($uniq) {	1942	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1943	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	1944	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	1945	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1946	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	1947	}
1331	}	1948	}
1332		1949
1333	sub swap_out {	1950	sub swap_out {
1334	my ($self) = @_;	1951	my ($self) = @_;
1335		1952
1336	# save first because save cedes	1953	# save first because save cedes
1337	$self->save;	1954	$self->save;
		1955
		1956	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		1957
1339	return if $self->players;	1958	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	1959	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	1960	return if $self->{deny_save};
1342		1961
…		…
1346		1965
1347	sub reset_at {	1966	sub reset_at {
1348	my ($self) = @_;	1967	my ($self) = @_;
1349		1968
1350	# TODO: safety, remove and allow resettable per-player maps	1969	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};
1352	return 1e99 if $self->{deny_reset};	1970	return 1e99 if $self->{deny_reset};
1353		1971
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1972	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1973	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		1974
…		…
1361	my ($self) = @_;	1979	my ($self) = @_;
1362		1980
1363	$self->reset_at <= $cf::RUNTIME	1981	$self->reset_at <= $cf::RUNTIME
1364	}	1982	}
1365		1983
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	1984	sub reset {
1388	my ($self) = @_;	1985	my ($self) = @_;
1389		1986
		1987	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1988
1390	return if $self->players;	1989	return if $self->players;
1391	return if $self->{path}{user_rel};#d#
1392		1990
1393	warn "resetting map ", $self->path;#d#	1991	warn "resetting map ", $self->path;
		1992
		1993	$self->in_memory (cf::MAP_SWAPPED);
		1994
		1995	# need to save uniques path
		1996	unless ($self->{deny_save}) {
		1997	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1998
		1999	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2000	if $uniq;
		2001	}
1394		2002
1395	delete $cf::MAP{$self->path};	2003	delete $cf::MAP{$self->path};
		2004
		2005	$self->clear;
1396		2006
1397	$_->clear_links_to ($self) for values %cf::MAP;	2007	$_->clear_links_to ($self) for values %cf::MAP;
1398		2008
1399	$self->unlink_save;	2009	$self->unlink_save;
1400	$self->destroy;	2010	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	2013	my $nuke_counter = "aaaa";
1404		2014
1405	sub nuke {	2015	sub nuke {
1406	my ($self) = @_;	2016	my ($self) = @_;
1407		2017
		2018	delete $cf::MAP{$self->path};
		2019
		2020	$self->unlink_save;
		2021
		2022	bless $self, "cf::map";
		2023	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	2024	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	2025	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	2026	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2027
		2028	$cf::MAP{$self->path} = $self;
		2029
1411	$self->reset; # polite request, might not happen	2030	$self->reset; # polite request, might not happen
1412	}	2031	}
1413		2032
1414	sub customise_for {	2033	=item $maps = cf::map::tmp_maps
1415	my ($map, $ob) = @_;
1416		2034
1417	if ($map->per_player) {	2035	Returns an arrayref with all map paths of currently instantiated and saved
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2036	maps. May block.
		2037
		2038	=cut
		2039
		2040	sub tmp_maps() {
1419	}	2041	[
1420		2042	map {
1421	$map	2043	utf8::decode $_;
		2044	/\.map$/
		2045	? normalise $_
		2046	: ()
		2047	} @{ aio_readdir $TMPDIR or [] }
		2048	]
1422	}	2049	}
1423		2050
1424	sub emergency_save {	2051	=item $maps = cf::map::random_maps
1425	my $freeze_guard = cf::freeze_mainloop;
1426		2052
1427	warn "enter emergency map save\n";	2053	Returns an arrayref with all map paths of currently instantiated and saved
		2054	random maps. May block.
1428		2055
1429	cf::sync_job {	2056	=cut
1430	warn "begin emergency map save\n";
1431	$_->save for values %cf::MAP;
1432	};
1433		2057
1434	warn "end emergency map save\n";	2058	sub random_maps() {
		2059	[
		2060	map {
		2061	utf8::decode $_;
		2062	/\.map$/
		2063	? normalise "?random/$_"
		2064	: ()
		2065	} @{ aio_readdir $RANDOMDIR or [] }
		2066	]
		2067	}
		2068
		2069	=item cf::map::unique_maps
		2070
		2071	Returns an arrayref of paths of all shared maps that have
		2072	instantiated unique items. May block.
		2073
		2074	=cut
		2075
		2076	sub unique_maps() {
		2077	[
		2078	map {
		2079	utf8::decode $_;
		2080	/\.map$/
		2081	? normalise $_
		2082	: ()
		2083	} @{ aio_readdir $UNIQUEDIR or [] }
		2084	]
1435	}	2085	}
1436		2086
1437	package cf;	2087	package cf;
1438		2088
1439	=back	2089	=back
1440		2090
		2091	=head3 cf::object
		2092
		2093	=cut
		2094
		2095	package cf::object;
		2096
		2097	=over 4
		2098
		2099	=item $ob->inv_recursive
		2100
		2101	Returns the inventory of the object _and_ their inventories, recursively.
		2102
		2103	=cut
		2104
		2105	sub inv_recursive_;
		2106	sub inv_recursive_ {
		2107	map { $_, inv_recursive_ $_->inv } @_
		2108	}
		2109
		2110	sub inv_recursive {
		2111	inv_recursive_ inv $_[0]
		2112	}
		2113
		2114	package cf;
		2115
		2116	=back
1441		2117
1442	=head3 cf::object::player	2118	=head3 cf::object::player
1443		2119
1444	=over 4	2120	=over 4
1445		2121
…		…
1459		2135
1460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2136	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1461		2137
1462	if ($self->{record_replies}) {	2138	if ($self->{record_replies}) {
1463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2139	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2140
1464	} else {	2141	} else {
		2142	my $pl = $self->contr;
		2143
		2144	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2145	my $diag = $pl->{npc_dialog};
		2146	$diag->{pl}->ext_reply (
		2147	$diag->{id},
		2148	msgtype => "reply",
		2149	msg => $diag->{pl}->expand_cfpod ($msg),
		2150	add_topics => []
		2151	);
		2152
		2153	} else {
1465	$msg = $npc->name . " says: $msg" if $npc;	2154	$msg = $npc->name . " says: $msg" if $npc;
1466	$self->message ($msg, $flags);	2155	$self->message ($msg, $flags);
		2156	}
1467	}	2157	}
1468	}	2158	}
1469		2159
1470	=item $player_object->may ("access")	2160	=item $player_object->may ("access")
1471		2161
…		…
1485		2175
1486	=item $player_object->enter_link	2176	=item $player_object->enter_link
1487		2177
1488	Freezes the player and moves him/her to a special map (C<{link}>).	2178	Freezes the player and moves him/her to a special map (C<{link}>).
1489		2179
1490	The player should be reaosnably safe there for short amounts of time. You	2180	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	2181	I<MUST> call C<leave_link> as soon as possible, though.
1492		2182
		2183	Will never block.
		2184
1493	=item $player_object->leave_link ($map, $x, $y)	2185	=item $player_object->leave_link ($map, $x, $y)
1494		2186
1495	Moves the player out of the specila link map onto the given map. If the	2187	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	2188	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	2189	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	2190	fails, to the emergency map position.
1499		2191
1500	Might block.	2192	Might block.
1501		2193
1502	=cut	2194	=cut
		2195
		2196	sub link_map {
		2197	unless ($LINK_MAP) {
		2198	$LINK_MAP = cf::map::find "{link}"
		2199	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2200	$LINK_MAP->load;
		2201	}
		2202
		2203	$LINK_MAP
		2204	}
1503		2205
1504	sub cf::object::player::enter_link {	2206	sub cf::object::player::enter_link {
1505	my ($self) = @_;	2207	my ($self) = @_;
1506		2208
1507	$self->deactivate_recursive;	2209	$self->deactivate_recursive;
1508		2210
1509	return if $self->map == $LINK_MAP;	2211	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		2212
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2213	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	2214	if $self->map && $self->map->{path} ne "{link}";
1513		2215
1514	$self->enter_map ($LINK_MAP, 20, 20);	2216	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	2217	}
1516		2218
1517	sub cf::object::player::leave_link {	2219	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	2220	my ($self, $map, $x, $y) = @_;
		2221
		2222	return unless $self->contr->active;
1519		2223
1520	my $link_pos = delete $self->{_link_pos};	2224	my $link_pos = delete $self->{_link_pos};
1521		2225
1522	unless ($map) {	2226	unless ($map) {
1523	# restore original map position	2227	# restore original map position
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	2241	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	2242	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	2243	if $x <=0 && $y <= 0;
1540		2244
1541	$map->load;	2245	$map->load;
		2246	$map->load_diag;
1542		2247
		2248	return unless $self->contr->active;
1543	$self->activate_recursive;	2249	$self->activate_recursive;
		2250
		2251	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	2252	$self->enter_map ($map, $x, $y);
1545	}	2253	}
1546		2254
1547	cf::player->attach (
1548	on_logout => sub {
1549	my ($pl) = @_;
1550
1551	# abort map switching before logout
1552	if ($pl->ob->{_link_pos}) {
1553	cf::sync_job {
1554	$pl->ob->leave_link
1555	};
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560
1561	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574
1575	=item $player_object->goto_map ($path, $x, $y)	2255	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1576		2256
1577	=cut	2257	Moves the player to the given map-path and coordinates by first freezing
		2258	her, loading and preparing them map, calling the provided $check callback
		2259	that has to return the map if sucecssful, and then unfreezes the player on
		2260	the new (success) or old (failed) map position.
1578		2261
		2262	=cut
		2263
		2264	our $GOTOGEN;
		2265
1579	sub cf::object::player::goto_map {	2266	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	2267	my ($self, $path, $x, $y, $check) = @_;
		2268
		2269	# do generation counting so two concurrent goto's will be executed in-order
		2270	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		2271
1582	$self->enter_link;	2272	$self->enter_link;
1583		2273
1584	(cf::async {	2274	(async {
1585	$path = new cf::path $path;	2275	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	2276	my $map = cf::map::find $path;
		2277
		2278	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	2279	$map = $map->customise_for ($self);
1589		2280	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	2281	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2282	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2283	}
1594		2284
		2285	$map
		2286	};
		2287
		2288	if ($@) {
		2289	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	LOG llevError | logBacktrace, Carp::longmess $@;
		2291	}
		2292
		2293	if ($gen == $self->{_goto_generation}) {
		2294	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	2295	$self->leave_link ($map, $x, $y);
		2296	}
1596	})->prio (1);	2297	})->prio (1);
1597	}	2298	}
1598		2299
1599	=item $player_object->enter_exit ($exit_object)	2300	=item $player_object->enter_exit ($exit_object)
1600		2301
…		…
1602		2303
1603	sub parse_random_map_params {	2304	sub parse_random_map_params {
1604	my ($spec) = @_;	2305	my ($spec) = @_;
1605		2306
1606	my $rmp = { # defaults	2307	my $rmp = { # defaults
1607	xsize => 10,	2308	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2309	ysize => (cf::rndm 15, 40),
		2310	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2311	#layout => string,
1609	};	2312	};
1610		2313
1611	for (split /\n/, $spec) {	2314	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2315	my ($k, $v) = split /\s+/, $_, 2;
1613		2316
…		…
1617	$rmp	2320	$rmp
1618	}	2321	}
1619		2322
1620	sub prepare_random_map {	2323	sub prepare_random_map {
1621	my ($exit) = @_;	2324	my ($exit) = @_;
		2325
		2326	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2327
1623	# all this does is basically replace the /! path by	2328	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2329	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2330	# that depends on the exit object
1626		2331
1627	my $rmp = parse_random_map_params $exit->msg;	2332	my $rmp = parse_random_map_params $exit->msg;
1628		2333
1629	if ($exit->map) {	2334	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2335	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2336	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2337	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2338	$rmp->{origin_y} = $exit->y;
1634	}	2339	}
1635		2340
1636	$rmp->{random_seed} ||= $exit->random_seed;	2341	$rmp->{random_seed} ||= $exit->random_seed;
1637		2342
1638	my $data = cf::to_json $rmp;	2343	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2344	my $md5 = Digest::MD5::md5_hex $data;
		2345	my $meta = "$RANDOMDIR/$md5.meta";
1640		2346
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2347	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2348	aio_write $fh, 0, (length $data), $data, 0;
		2349	undef $fh;
		2350	aio_rename "$meta~", $meta;
1643		2351
1644	$exit->slaying ("?random/$md5");	2352	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2353	$exit->msg (undef);
1646	}	2354	}
1647	}	2355	}
…		…
1649	sub cf::object::player::enter_exit {	2357	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2358	my ($self, $exit) = @_;
1651		2359
1652	return unless $self->type == cf::PLAYER;	2360	return unless $self->type == cf::PLAYER;
1653		2361
		2362	if ($exit->slaying eq "/!") {
		2363	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2364	# the problem is that $exit might not survive long enough
		2365	# so it needs to be done right now, right here
		2366	cf::sync_job { prepare_random_map $exit };
		2367	}
		2368
		2369	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2370	my $hp = $exit->stats->hp;
		2371	my $sp = $exit->stats->sp;
		2372
1654	$self->enter_link;	2373	$self->enter_link;
1655		2374
		2375	# if exit is damned, update players death & WoR home-position
		2376	$self->contr->savebed ($slaying, $hp, $sp)
		2377	if $exit->flag (FLAG_DAMNED);
		2378
1656	(cf::async {	2379	(async {
1657	$self->deactivate_recursive; # just to be sure	2380	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2381	unless (eval {
1659	prepare_random_map $exit	2382	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2383
1665	1;	2384	1;
1666	}) {	2385	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2386	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2387	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2388	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2389	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2390
1672	warn "ERROR in enter_exit: $@";	2391	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2392	$self->leave_link;
1674	}	2393	}
1675	})->prio (1);	2394	})->prio (1);
…		…
1688		2407
1689	sub cf::client::send_drawinfo {	2408	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2409	my ($self, $text, $flags) = @_;
1691		2410
1692	utf8::encode $text;	2411	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2412	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2413	}
1695		2414
		2415	=item $client->send_msg ($color, $type, $msg, [extra...])
		2416
		2417	Send a drawinfo or msg packet to the client, formatting the msg for the
		2418	client if neccessary. C<$type> should be a string identifying the type of
		2419	the message, with C<log> being the default. If C<$color> is negative, suppress
		2420	the message unless the client supports the msg packet.
		2421
		2422	=cut
		2423
		2424	sub cf::client::send_msg {
		2425	my ($self, $color, $type, $msg, @extra) = @_;
		2426
		2427	$msg = $self->pl->expand_cfpod ($msg);
		2428
		2429	return unless @extra || length $msg;
		2430
		2431	if ($self->can_msg) {
		2432	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2433	} else {
		2434	# replace some tags by gcfclient-compatible ones
		2435	for ($msg) {
		2436	1 while
		2437	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2438	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2439	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2440	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2441	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2442	}
		2443
		2444	if ($color >= 0) {
		2445	if (0 && $msg =~ /\[/) {
		2446	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2447	} else {
		2448	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2449	$self->send_packet ("drawinfo $color $msg")
		2450	}
		2451	}
		2452	}
		2453	}
		2454
		2455	=item $client->ext_event ($type, %msg)
		2456
		2457	Sends an ext event to the client.
		2458
		2459	=cut
		2460
		2461	sub cf::client::ext_event($$%) {
		2462	my ($self, $type, %msg) = @_;
		2463
		2464	$msg{msgtype} = "event_$type";
		2465	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2466	}
1696		2467
1697	=item $success = $client->query ($flags, "text", \&cb)	2468	=item $success = $client->query ($flags, "text", \&cb)
1698		2469
1699	Queues a query to the client, calling the given callback with	2470	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2471	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1701	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2472	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1702		2473
1703	Queries can fail, so check the return code. Or don't, as queries will become	2474	Queries can fail, so check the return code. Or don't, as queries will
1704	reliable at some point in the future.	2475	become reliable at some point in the future.
1705		2476
1706	=cut	2477	=cut
1707		2478
1708	sub cf::client::query {	2479	sub cf::client::query {
1709	my ($self, $flags, $text, $cb) = @_;	2480	my ($self, $flags, $text, $cb) = @_;
…		…
1717	utf8::encode $text;	2488	utf8::encode $text;
1718	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2489	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1719		2490
1720	$self->send_packet ($self->{query_queue}[0][0])	2491	$self->send_packet ($self->{query_queue}[0][0])
1721	if @{ $self->{query_queue} } == 1;	2492	if @{ $self->{query_queue} } == 1;
		2493
		2494	1
1722	}	2495	}
1723		2496
1724	cf::client->attach (	2497	cf::client->attach (
		2498	on_connect => sub {
		2499	my ($ns) = @_;
		2500
		2501	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2502	},
1725	on_reply => sub {	2503	on_reply => sub {
1726	my ($ns, $msg) = @_;	2504	my ($ns, $msg) = @_;
1727		2505
1728	# this weird shuffling is so that direct followup queries	2506	# this weird shuffling is so that direct followup queries
1729	# get handled first	2507	# get handled first
1730	my $queue = delete $ns->{query_queue}	2508	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2509	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2510
1733	(shift @$queue)->[1]->($msg);	2511	(shift @$queue)->[1]->($msg);
		2512	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2513
1735	push @{ $ns->{query_queue} }, @$queue;	2514	push @{ $ns->{query_queue} }, @$queue;
1736		2515
1737	if (@{ $ns->{query_queue} } == @$queue) {	2516	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2517	if (@$queue) {
…		…
1740	} else {	2519	} else {
1741	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2520	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1742	}	2521	}
1743	}	2522	}
1744	},	2523	},
		2524	on_exticmd => sub {
		2525	my ($ns, $buf) = @_;
		2526
		2527	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2528
		2529	if (ref $msg) {
		2530	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2531	if (my %reply = $cb->($ns, $msg)) {
		2532	$reply{msgid} = $msg->{msgid};
		2533	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2534	}
		2535	}
		2536	} else {
		2537	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2538	}
		2539
		2540	cf::override;
		2541	},
1745	);	2542	);
1746		2543
1747	=item $client->coro (\&cb)	2544	=item $client->async (\&cb)
1748		2545
1749	Create a new coroutine, running the specified callback. The coroutine will	2546	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2547	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2548	or loss of connection).
1752		2549
1753	=cut	2550	=cut
1754		2551
1755	sub cf::client::coro {	2552	sub cf::client::async {
1756	my ($self, $cb) = @_;	2553	my ($self, $cb) = @_;
1757		2554
1758	my $coro = &cf::async ($cb);	2555	my $coro = &Coro::async ($cb);
1759		2556
1760	$coro->on_destroy (sub {	2557	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2558	delete $self->{_coro}{$coro+0};
1762	});	2559	});
1763		2560
…		…
1796		2593
1797	# here we export the classes and methods available to script code	2594	# here we export the classes and methods available to script code
1798		2595
1799	=pod	2596	=pod
1800		2597
1801	The following fucntions and emthods are available within a safe environment:	2598	The following functions and methods are available within a safe environment:
1802		2599
1803	cf::object contr pay_amount pay_player map	2600	cf::object
		2601	contr pay_amount pay_player map x y force_find force_add
		2602	insert remove
		2603
1804	cf::object::player player	2604	cf::object::player
1805	cf::player peaceful	2605	player
1806	cf::map trigger	2606
		2607	cf::player
		2608	peaceful
		2609
		2610	cf::map
		2611	trigger
1807		2612
1808	=cut	2613	=cut
1809		2614
1810	for (	2615	for (
1811	["cf::object" => qw(contr pay_amount pay_player map)],	2616	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2617	insert remove)],
1812	["cf::object::player" => qw(player)],	2618	["cf::object::player" => qw(player)],
1813	["cf::player" => qw(peaceful)],	2619	["cf::player" => qw(peaceful)],
1814	["cf::map" => qw(trigger)],	2620	["cf::map" => qw(trigger)],
1815	) {	2621	) {
1816	no strict 'refs';	2622	no strict 'refs';
…		…
1887	=back	2693	=back
1888		2694
1889	=cut	2695	=cut
1890		2696
1891	#############################################################################	2697	#############################################################################
		2698	# the server's init and main functions
1892		2699
1893	=head2 EXTENSION DATABASE SUPPORT	2700	sub load_facedata($) {
		2701	my ($path) = @_;
1894		2702
1895	Crossfire maintains a very simple database for extension use. It can	2703	warn "loading facedata from $path\n";
1896	currently store anything that can be serialised using Storable, which
1897	excludes objects.
1898		2704
1899	The parameter C<$family> should best start with the name of the extension	2705	my $facedata;
1900	using it, it should be unique.	2706	0 < aio_load $path, $facedata
		2707	or die "$path: $!";
1901		2708
1902	=over 4	2709	$facedata = Coro::Storable::thaw $facedata;
1903		2710
1904	=item $hashref = cf::db_get $family	2711	$facedata->{version} == 2
		2712	or cf::cleanup "$path: version mismatch, cannot proceed.";
1905		2713
1906	Return a hashref for use by the extension C<$family>, which can be
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909
1910	=item $value = cf::db_get $family => $key
1911
1912	Returns a single value from the database
1913
1914	=item cf::db_put $family => $hashref
1915
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918
1919	=item cf::db_put $family => $key => $value
1920
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931
1932	=cut
1933
1934	our $DB;
1935
1936	{
1937	my $path = cf::localdir . "/database.pst";
1938
1939	sub db_load() {
1940	$DB = stat $path ? Storable::retrieve $path : { };
1941	}	2714	{
		2715	my $faces = $facedata->{faceinfo};
1942		2716
1943	my $pid;	2717	while (my ($face, $info) = each %$faces) {
1944		2718	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1945	sub db_save() {	2719	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1946	waitpid $pid, 0 if $pid;	2720	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1947	if (0 == ($pid = fork)) {	2721	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1948	$DB->{_meta}{version} = 1;	2722	Coro::cede;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});
1965
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}
1970
1971	sub db_get($;$) {
1972	@_ >= 2
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976
1977	sub db_put($$;$) {
1978	if (@_ >= 3) {
1979	$DB->{$_[0]}{$_[1]} = $_[2];
1980	} else {
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985
1986	cf::global->attach (
1987	prio => 10000,
1988	on_cleanup => sub {
1989	db_sync;
1990	},	2723	}
1991	);
1992	}
1993		2724
1994	#############################################################################	2725	while (my ($face, $info) = each %$faces) {
1995	# the server's main()	2726	next unless $info->{smooth};
		2727	my $idx = cf::face::find $face
		2728	or next;
		2729	if (my $smooth = cf::face::find $info->{smooth}) {
		2730	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2731	} else {
		2732	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2733	}
		2734	Coro::cede;
		2735	}
		2736	}
		2737
		2738	{
		2739	my $anims = $facedata->{animinfo};
		2740
		2741	while (my ($anim, $info) = each %$anims) {
		2742	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2743	Coro::cede;
		2744	}
		2745
		2746	cf::anim::invalidate_all; # d'oh
		2747	}
		2748
		2749	1
		2750	}
		2751
		2752	sub reload_regions {
		2753	load_resource_file "$MAPDIR/regions"
		2754	or die "unable to load regions file\n";
		2755	}
		2756
		2757	sub reload_facedata {
		2758	load_facedata "$DATADIR/facedata"
		2759	or die "unable to load facedata\n";
		2760	}
		2761
		2762	sub reload_archetypes {
		2763	load_resource_file "$DATADIR/archetypes"
		2764	or die "unable to load archetypes\n";
		2765	#d# NEED to laod twice to resolve forward references
		2766	# this really needs to be done in an extra post-pass
		2767	# (which needs to be synchronous, so solve it differently)
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	}
		2771
		2772	sub reload_treasures {
		2773	load_resource_file "$DATADIR/treasures"
		2774	or die "unable to load treasurelists\n";
		2775	}
		2776
		2777	sub reload_resources {
		2778	warn "reloading resource files...\n";
		2779
		2780	reload_regions;
		2781	reload_facedata;
		2782	#reload_archetypes;#d#
		2783	reload_archetypes;
		2784	reload_treasures;
		2785
		2786	warn "finished reloading resource files\n";
		2787	}
		2788
		2789	sub init {
		2790	reload_resources;
		2791	}
1996		2792
1997	sub cfg_load {	2793	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2794	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	2795	or return;
2000		2796
2001	local $/;	2797	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2798	*CFG = YAML::Syck::Load <$fh>;
2003		2799
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2800	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2801
		2802	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2803	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2804
2006	if (exists $CFG{mlockall}) {	2805	if (exists $CFG{mlockall}) {
2007	eval {	2806	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2807	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2808	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2809	};
2011	warn $@ if $@;	2810	warn $@ if $@;
2012	}	2811	}
2013	}	2812	}
2014		2813
2015	sub main {	2814	sub main {
2016	# we must not ever block the main coroutine	2815	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	2816	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2817	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	2818	(async {
2020	Event::one_event;	2819	Event::one_event;
2021	})->();	2820	})->prio (Coro::PRIO_MAX);
2022	};	2821	};
2023		2822
2024	cfg_load;	2823	cfg_load;
2025	db_load;	2824	db_init;
2026	load_extensions;	2825	load_extensions;
		2826
		2827	$TICK_WATCHER->start;
2027	Event::loop;	2828	Event::loop;
2028	}	2829	}
2029		2830
2030	#############################################################################	2831	#############################################################################
2031	# initialisation	2832	# initialisation and cleanup
2032		2833
		2834	# install some emergency cleanup handlers
		2835	BEGIN {
		2836	for my $signal (qw(INT HUP TERM)) {
		2837	Event->signal (
		2838	reentrant => 0,
		2839	data => WF_AUTOCANCEL,
		2840	signal => $signal,
		2841	prio => 0,
		2842	cb => sub {
		2843	cf::cleanup "SIG$signal";
		2844	},
		2845	);
		2846	}
		2847	}
		2848
		2849	sub write_runtime {
		2850	my $runtime = "$LOCALDIR/runtime";
		2851
		2852	# first touch the runtime file to show we are still running:
		2853	# the fsync below can take a very very long time.
		2854
		2855	IO::AIO::aio_utime $runtime, undef, undef;
		2856
		2857	my $guard = cf::lock_acquire "write_runtime";
		2858
		2859	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2860	or return;
		2861
		2862	my $value = $cf::RUNTIME + 90 + 10;
		2863	# 10 is the runtime save interval, for a monotonic clock
		2864	# 60 allows for the watchdog to kill the server.
		2865
		2866	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2867	and return;
		2868
		2869	# always fsync - this file is important
		2870	aio_fsync $fh
		2871	and return;
		2872
		2873	# touch it again to show we are up-to-date
		2874	aio_utime $fh, undef, undef;
		2875
		2876	close $fh
		2877	or return;
		2878
		2879	aio_rename "$runtime~", $runtime
		2880	and return;
		2881
		2882	warn "runtime file written.\n";
		2883
		2884	1
		2885	}
		2886
		2887	sub emergency_save() {
		2888	my $freeze_guard = cf::freeze_mainloop;
		2889
		2890	warn "enter emergency perl save\n";
		2891
		2892	cf::sync_job {
		2893	# use a peculiar iteration method to avoid tripping on perl
		2894	# refcount bugs in for. also avoids problems with players
		2895	# and maps saved/destroyed asynchronously.
		2896	warn "begin emergency player save\n";
		2897	for my $login (keys %cf::PLAYER) {
		2898	my $pl = $cf::PLAYER{$login} or next;
		2899	$pl->valid or next;
		2900	$pl->save;
		2901	}
		2902	warn "end emergency player save\n";
		2903
		2904	warn "begin emergency map save\n";
		2905	for my $path (keys %cf::MAP) {
		2906	my $map = $cf::MAP{$path} or next;
		2907	$map->valid or next;
		2908	$map->save;
		2909	}
		2910	warn "end emergency map save\n";
		2911
		2912	warn "begin emergency database checkpoint\n";
		2913	BDB::db_env_txn_checkpoint $DB_ENV;
		2914	warn "end emergency database checkpoint\n";
		2915	};
		2916
		2917	warn "leave emergency perl save\n";
		2918	}
		2919
		2920	sub post_cleanup {
		2921	my ($make_core) = @_;
		2922
		2923	warn Carp::longmess "post_cleanup backtrace"
		2924	if $make_core;
		2925	}
		2926
2033	sub reload() {	2927	sub do_reload_perl() {
2034	# can/must only be called in main	2928	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	2929	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	2930	warn "can only reload from main coroutine";
2037	return;	2931	return;
2038	}	2932	}
2039		2933
2040	warn "reloading...";	2934	warn "reloading...";
2041		2935
2042	my $guard = freeze_mainloop;	2936	warn "entering sync_job";
		2937
		2938	cf::sync_job {
		2939	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	2940	cf::emergency_save;
		2941	cf::write_runtime; # external watchdog should not bark
2044		2942
2045	eval {	2943	warn "syncing database to disk";
		2944	BDB::db_env_txn_checkpoint $DB_ENV;
		2945
2046	# if anything goes wrong in here, we should simply crash as we already saved	2946	# if anything goes wrong in here, we should simply crash as we already saved
2047		2947
2048	# cancel all watchers	2948	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	2949	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	2950	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	2951	}
2052		2952
		2953	warn "flushing outstanding aio requests";
		2954	for (;;) {
		2955	BDB::flush;
		2956	IO::AIO::flush;
		2957	Coro::cede;
		2958	last unless IO::AIO::nreqs || BDB::nreqs;
		2959	warn "iterate...";
		2960	}
		2961
		2962	++$RELOAD;
		2963
2053	# cancel all extension coros	2964	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	2965	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	2966	%EXT_CORO = ();
2056		2967
2057	# unload all extensions	2968	warn "removing commands";
2058	for (@exts) {	2969	%COMMAND = ();
		2970
		2971	warn "removing ext/exti commands";
		2972	%EXTCMD = ();
		2973	%EXTICMD = ();
		2974
		2975	warn "unloading/nuking all extensions";
		2976	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	2977	warn "... unloading $pkg";
2060	unload_extension $_;	2978
		2979	if (my $cb = $pkg->can ("unload")) {
		2980	eval {
		2981	$cb->($pkg);
		2982	1
		2983	} or warn "$pkg unloaded, but with errors: $@";
2061	}	2984	}
2062		2985
		2986	warn "... nuking $pkg";
		2987	Symbol::delete_package $pkg;
		2988	}
		2989
2063	# unload all modules loaded from $LIBDIR	2990	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	2991	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2992	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		2993
2067	warn "removing <$k>";	2994	warn "... unloading $k";
2068	delete $INC{$k};	2995	delete $INC{$k};
2069		2996
2070	$k =~ s/\.pm$//;	2997	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	2998	$k =~ s/\//::/g;
2072		2999
…		…
2075	}	3002	}
2076		3003
2077	Symbol::delete_package $k;	3004	Symbol::delete_package $k;
2078	}	3005	}
2079		3006
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	3007	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	3008	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3009	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		3010
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	3011	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	3012	delete $INC{"cf.pm"};
		3013	delete $INC{"cf/pod.pm"};
2093		3014
2094	# don't, removes xs symbols, too,	3015	# don't, removes xs symbols, too,
2095	# and global variables created in xs	3016	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	3017	#Symbol::delete_package __PACKAGE__;
2097		3018
2098	# reload cf.pm	3019	warn "unload completed, starting to reload now";
		3020
2099	warn "reloading cf.pm";	3021	warn "reloading cf.pm";
2100	require cf;	3022	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3023	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		3024
2103	# load config and database again	3025	warn "loading config and database again";
2104	cf::cfg_load;	3026	cf::cfg_load;
2105	cf::db_load;
2106		3027
2107	# load extensions
2108	warn "load extensions";	3028	warn "loading extensions";
2109	cf::load_extensions;	3029	cf::load_extensions;
2110		3030
2111	# reattach attachments to objects	3031	warn "reattaching attachments to objects/players";
2112	warn "reattach";	3032	_global_reattach; # objects, sockets
2113	_global_reattach;	3033	warn "reattaching attachments to maps";
2114	};	3034	reattach $_ for values %MAP;
		3035	warn "reattaching attachments to players";
		3036	reattach $_ for values %PLAYER;
2115		3037
2116	if ($@) {	3038	warn "leaving sync_job";
		3039
		3040	1
		3041	} or do {
2117	warn $@;	3042	warn $@;
2118	warn "error while reloading, exiting.";	3043	warn "error while reloading, exiting.";
2119	exit 1;	3044	exit 1;
2120	}	3045	};
2121		3046
2122	warn "reloaded successfully";	3047	warn "reloaded";
2123	};	3048	};
2124		3049
2125	#############################################################################	3050	our $RELOAD_WATCHER; # used only during reload
2126		3051
2127	unless ($LINK_MAP) {	3052	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	3053	# doing reload synchronously and two reloads happen back-to-back,
		3054	# coro crashes during coro_state_free->destroy here.
2129		3055
2130	$LINK_MAP->width (41);	3056	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	3057	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	3058	after => 0,
		3059	data => WF_AUTOCANCEL,
2140	cb => sub {	3060	cb => sub {
2141	$_[0]->w->cancel;	3061	do_reload_perl;
2142		3062	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	3063	},
2161		3064	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	3065	}
2167
2168	register "<global>", __PACKAGE__;
2169		3066
2170	register_command "reload" => sub {	3067	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	3068	my ($who, $arg) = @_;
2172		3069
2173	if ($who->flag (FLAG_WIZ)) {	3070	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	3071	$who->message ("reloading server.");
		3072	async { reload_perl };
2177	}	3073	}
2178	};	3074	};
2179		3075
2180	unshift @INC, $LIBDIR;	3076	unshift @INC, $LIBDIR;
2181		3077
		3078	my $bug_warning = 0;
		3079
		3080	our @WAIT_FOR_TICK;
		3081	our @WAIT_FOR_TICK_BEGIN;
		3082
		3083	sub wait_for_tick {
		3084	return unless $TICK_WATCHER->is_active;
		3085	return if $Coro::current == $Coro::main;
		3086
		3087	my $signal = new Coro::Signal;
		3088	push @WAIT_FOR_TICK, $signal;
		3089	$signal->wait;
		3090	}
		3091
		3092	sub wait_for_tick_begin {
		3093	return unless $TICK_WATCHER->is_active;
		3094	return if $Coro::current == $Coro::main;
		3095
		3096	my $signal = new Coro::Signal;
		3097	push @WAIT_FOR_TICK_BEGIN, $signal;
		3098	$signal->wait;
		3099	}
		3100
		3101	my $min = 1e6;#d#
		3102	my $avg = 10;
2182	$TICK_WATCHER = Event->timer (	3103	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	3104	reentrant => 0,
		3105	parked => 1,
2184	prio => 0,	3106	prio => 0,
2185	at => $NEXT_TICK || $TICK,	3107	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	3108	data => WF_AUTOCANCEL,
2187	cb => sub {	3109	cb => sub {
		3110	if ($Coro::current != $Coro::main) {
		3111	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3112	unless ++$bug_warning > 10;
		3113	return;
		3114	}
		3115
		3116	$NOW = $tick_start = Event::time;
		3117
2188	cf::server_tick; # one server iteration	3118	cf::server_tick; # one server iteration
		3119
		3120	0 && sync_job {#d#
		3121	for(1..10) {
		3122	my $t = Event::time;
		3123	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3124	or die;
		3125
		3126	$map->width (50);
		3127	$map->height (50);
		3128	$map->alloc;
		3129	$map->_load_objects ("/tmp/x.map", 1);
		3130	my $t = Event::time - $t;
		3131
		3132	#next unless $t < 0.0013;#d#
		3133	if ($t < $min) {
		3134	$min = $t;
		3135	}
		3136	$avg = $avg * 0.99 + $t * 0.01;
		3137	}
		3138	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3139	exit 0;
		3140	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3141	};
		3142
2189	$RUNTIME += $TICK;	3143	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	3144	$NEXT_TICK += $TICK;
2191		3145
		3146	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3147	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3148	Coro::async_pool {
		3149	write_runtime
		3150	or warn "ERROR: unable to write runtime file: $!";
		3151	};
		3152	}
		3153
		3154	# my $AFTER = Event::time;
		3155	# warn $AFTER - $NOW;#d#
		3156
		3157	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3158	$sig->send;
		3159	}
		3160	while (my $sig = shift @WAIT_FOR_TICK) {
		3161	$sig->send;
		3162	}
		3163
		3164	$NOW = Event::time;
		3165
2192	# if we are delayed by four ticks or more, skip them all	3166	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3167	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2194		3168
2195	$TICK_WATCHER->at ($NEXT_TICK);	3169	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	3170	$TICK_WATCHER->start;
		3171
		3172	$LOAD = ($NOW - $tick_start) / $TICK;
		3173	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3174
		3175	_post_tick;
		3176
		3177
2197	},	3178	},
2198	);	3179	);
2199		3180
		3181	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	3182	BDB::max_poll_time $TICK * 0.1;
2201		3183	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	3184	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	3185	fd => BDB::poll_fileno,
2204	poll => 'r',	3186	poll => 'r',
2205	prio => 5,	3187	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	3188	data => WF_AUTOCANCEL,
2212	after => 0,	3189	cb => \&BDB::poll_cb,
2213	interval => 10,	3190	);
2214	cb => sub {	3191	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	3192
2216	write_runtime	3193	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	3194	my $status;
		3195	my $current = $Coro::current;
		3196	(
		3197	sub {
		3198	$status = $!;
		3199	$current->ready; undef $current;
		3200	},
		3201	sub {
		3202	Coro::schedule while defined $current;
		3203	$! = $status;
		3204	},
		3205	)
		3206	};
		3207
		3208	unless ($DB_ENV) {
		3209	$DB_ENV = BDB::db_env_create;
		3210
		3211	cf::sync_job {
		3212	eval {
		3213	BDB::db_env_open
		3214	$DB_ENV,
		3215	$BDBDIR,
		3216	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3217	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3218	0666;
		3219
		3220	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3221
		3222	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3223	$DB_ENV->set_lk_detect;
		3224	};
		3225
		3226	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	3227	};
2219	},	3228	}
2220	);	3229	}
		3230
		3231	{
		3232	IO::AIO::min_parallel 8;
		3233
		3234	undef $Coro::AIO::WATCHER;
		3235	IO::AIO::max_poll_time $TICK * 0.1;
		3236	$AIO_POLL_WATCHER = Event->io (
		3237	reentrant => 0,
		3238	data => WF_AUTOCANCEL,
		3239	fd => IO::AIO::poll_fileno,
		3240	poll => 'r',
		3241	prio => 6,
		3242	cb => \&IO::AIO::poll_cb,
		3243	);
		3244	}
		3245
		3246	my $_log_backtrace;
		3247
		3248	sub _log_backtrace {
		3249	my ($msg, @addr) = @_;
		3250
		3251	$msg =~ s/\n//;
		3252
		3253	# limit the # of concurrent backtraces
		3254	if ($_log_backtrace < 2) {
		3255	++$_log_backtrace;
		3256	async {
		3257	my @bt = fork_call {
		3258	@addr = map { sprintf "%x", $_ } @addr;
		3259	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3260	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3261	or die "addr2line: $!";
		3262
		3263	my @funcs;
		3264	my @res = <$fh>;
		3265	chomp for @res;
		3266	while (@res) {
		3267	my ($func, $line) = splice @res, 0, 2, ();
		3268	push @funcs, "[$func] $line";
		3269	}
		3270
		3271	@funcs
		3272	};
		3273
		3274	LOG llevInfo, "[ABT] $msg\n";
		3275	LOG llevInfo, "[ABT] $_\n" for @bt;
		3276	--$_log_backtrace;
		3277	};
		3278	} else {
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] [suppressed]\n";
		3281	}
		3282	}
		3283
		3284	# load additional modules
		3285	use cf::pod;
2221		3286
2222	END { cf::emergency_save }	3287	END { cf::emergency_save }
2223		3288
2224	1	3289	1
2225		3290

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