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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.123 by root, Tue Jan 2 19:18:33 2007 UTC vs.
Revision 1.293 by root, Tue Jul 3 05:14:15 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	93
55	our $RANDOM_MAPS = cf::localdir . "/random";	94	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
57		100
58	binmode STDOUT;	101	binmode STDOUT;
59	binmode STDERR;	102	binmode STDERR;
60		103
61	# read virtual server time, if available	104	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
66	}	109	}
67		110
68	mkdir cf::localdir;	111	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		113
74	# a special map that is always available	114	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		115
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	116	sub cf::map::normalise;
78		117
79	#############################################################################	118	#############################################################################
80		119
81	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
82		121
…		…
89	=item $cf::RUNTIME	128	=item $cf::RUNTIME
90		129
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	131	every server tick.
93		132
94	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		136
96	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
98		141
99	=item $cf::NOW	142	=item $cf::NOW
100		143
101	The time of the last (current) server tick.	144	The time of the last (current) server tick.
102		145
103	=item $cf::TICK	146	=item $cf::TICK
104		147
105	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
106		159
107	=item %cf::CFG	160	=item %cf::CFG
108		161
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		170
112	=back	171	=back
113		172
114	=cut	173	=cut
115		174
116	BEGIN {	175	BEGIN {
117	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	177	my $msg = join "", @_;
119	utf8::encode $msg;
120		178
121	$msg .= "\n"	179	$msg .= "\n"
122	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
123		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
125	};	186	};
126	}	187	}
127		188
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		196
135	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	198	# within the Safe compartment.
137	for my $pkg (qw(	199	for my $pkg (qw(
138	cf::global cf::attachable	200	cf::global cf::attachable
…		…
147		209
148	$Event::DIED = sub {	210	$Event::DIED = sub {
149	warn "error in event callback: @_";	211	warn "error in event callback: @_";
150	};	212	};
151		213
152	my %ext_pkg;	214	#############################################################################
153	my @exts;
154	my @hook;
155		215
156	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
157		217
158	=over 4	218	=over 4
159		219
160	=cut	220	=item dumpval $ref
161		221
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
163		242
164	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
165		244
166	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
167		246
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
176		248
177	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
178		250
179	=cut	251	=cut
180		252
181	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		254
186	=item my $guard = cf::guard { BLOCK }	255	sub to_json ($) { $json_coder->encode ($_[0]) }
187		256	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		257
208	=item cf::lock_wait $string	258	=item cf::lock_wait $string
209		259
210	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
211		261
212	=item my $lock = cf::lock_acquire $string	262	=item my $lock = cf::lock_acquire $string
213		263
214	Wait until the given lock is available and then acquires it and returns	264	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	265	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	266	for example when the coroutine gets canceled), the lock is automatically
217	returned.	267	returned.
218		268
219	Lock names should begin with a unique identifier (for example, find_map	269	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
221		275
222	=cut	276	=cut
223		277
224	our %LOCK;	278	our %LOCK;
225		279
…		…
239	# wait, to be sure we are not locked	293	# wait, to be sure we are not locked
240	lock_wait $key;	294	lock_wait $key;
241		295
242	$LOCK{$key} = [];	296	$LOCK{$key} = [];
243		297
244	cf::guard {	298	Coro::guard {
245	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
247	}	301	}
248	}	302	}
249		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
		310	sub freeze_mainloop {
		311	return unless $TICK_WATCHER->is_active;
		312
		313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
		316	$TICK_WATCHER->stop;
		317	$guard
		318	}
		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
250	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
251		331
252	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
255		336
256	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
259	fast or be very important.	340	fast or be very important.
…		…
262		343
263	sub sync_job(&) {	344	sub sync_job(&) {
264	my ($job) = @_;	345	my ($job) = @_;
265		346
266	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
267	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
269		352
270	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	354	# (but this is cancel-safe)
272	local $FREEZE = 1;	355	my $freeze_guard = freeze_mainloop;
273		356
274	my $busy = 1;	357	my $busy = 1;
275	my @res;	358	my @res;
276		359
277	(Coro::async {	360	(async {
278	@res = eval { $job->() };	361	@res = eval { $job->() };
279	warn $@ if $@;	362	warn $@ if $@;
280	undef $busy;	363	undef $busy;
281	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
282		365
283	while ($busy) {	366	while ($busy) {
284	Coro::cede_notself;	367	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	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
287		376
288	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
289	} else {	378	} else {
290	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
291		380
292	$job->()	381	$job->()
293	}	382	}
294	}	383	}
295		384
296	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
297		386
298	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
300		389
301	=cut	390	=cut
302		391
303	sub coro(&) {	392	sub async_ext(&) {
304	my $cb = shift;	393	my $cb = shift;
305		394
306	my $coro; $coro = async {	395	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		396
313	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
315	});	399	});
316	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
317		401
318	$coro	402	$coro
319	}	403	}
320		404
321	sub write_runtime {	405	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		406
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
325	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.
326		411
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		413
331	aio_fsync $fh	414	sub fork_call(&@) {
332	and return;	415	my ($cb, @args) = @_;
333		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) {
334	close $fh	423	close $fh2;
335	or return;
336		424
337	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
338	and return;	426	$res = Coro::Storable::thaw $res;
339		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
340	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		480	my $key = "$_[0]/$_[1]";
		481
		482	cf::sync_job {
		483	BDB::db_get $DB, undef, $key, my $data;
		484
		485	$! ? ()
		486	: $data
		487	}
		488	}
		489
		490	sub db_put($$$) {
		491	BDB::dbreq_pri 4;
		492	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		493	}
		494
		495	=item cf::cache $id => [$paths...], $processversion => $process
		496
		497	Generic caching function that returns the value of the resource $id,
		498	caching and regenerating as required.
		499
		500	This function can block.
		501
		502	=cut
		503
		504	sub cache {
		505	my ($id, $src, $processversion, $process) = @_;
		506
		507	my $meta =
		508	join "\x00",
		509	$processversion,
		510	map {
		511	aio_stat $_
		512	and Carp::croak "$_: $!";
		513
		514	($_, (stat _)[7,9])
		515	} @$src;
		516
		517	my $dbmeta = db_get cache => "$id/meta";
		518	if ($dbmeta ne $meta) {
		519	# changed, we may need to process
		520
		521	my @data;
		522	my $md5;
		523
		524	for (0 .. $#$src) {
		525	0 <= aio_load $src->[$_], $data[$_]
		526	or Carp::croak "$src->[$_]: $!";
		527	}
		528
		529	# if processing is expensive, check
		530	# checksum first
		531	if (1) {
		532	$md5 =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	Coro::cede;
		537	($src->[$_], Digest::MD5::md5_hex $data[$_])
		538	} 0.. $#$src;
		539
		540
		541	my $dbmd5 = db_get cache => "$id/md5";
		542	if ($dbmd5 eq $md5) {
		543	db_put cache => "$id/meta", $meta;
		544
		545	return db_get cache => "$id/data";
		546	}
		547	}
		548
		549	my $t1 = Time::HiRes::time;
		550	my $data = $process->(\@data);
		551	my $t2 = Time::HiRes::time;
		552
		553	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		554
		555	db_put cache => "$id/data", $data;
		556	db_put cache => "$id/md5" , $md5;
		557	db_put cache => "$id/meta", $meta;
		558
		559	return $data;
		560	}
		561
		562	db_get cache => "$id/data"
		563	}
		564
		565	=item cf::datalog type => key => value, ...
		566
		567	Log a datalog packet of the given type with the given key-value pairs.
		568
		569	=cut
		570
		571	sub datalog($@) {
		572	my ($type, %kv) = @_;
		573	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	574	}
342		575
343	=back	576	=back
344		577
345	=cut	578	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		579
467	#############################################################################	580	#############################################################################
468		581
469	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
470		583
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	585	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
474		587
475	In the following description, CLASS can be any of C<global>, C<object>	588	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	589	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	590	Crossfire TRT).
478		591
479	=over 4	592	=over 4
480		593
481	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
482		595
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	710	our @CB_MAP = ();
598		711
599	my %attachment;	712	my %attachment;
600		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
601	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
603		722
604	use sort 'stable';	723	use sort 'stable';
605		724
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
640		759
641	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		764
646	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	766	my $pkg = shift @arg;
648		767
649	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
679	}	798	}
680		799
681	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
682	} else {	801	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	803	}
685		804
686	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
687	}	806	}
688		807
…		…
690	if (ref $_[0]) {	809	if (ref $_[0]) {
691	_object_attach @_;	810	_object_attach @_;
692	} else {	811	} else {
693	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
694	}	813	}
		814	_recalc_want;
695	};	815	};
696		816
697	# all those should be optimised	817	# all those should be optimised
698	sub cf::attachable::detach {	818	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
703	reattach ($obj);	823	reattach ($obj);
704	} else {	824	} else {
705	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
706	}	826	}
		827	_recalc_want;
707	};	828	};
708		829
709	sub cf::attachable::attached {	830	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
711		832
…		…
776	# object support	897	# object support
777		898
778	sub reattach {	899	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		904
782	my $registry = $obj->registry;	905	my $registry = $obj->registry;
783		906
784	@$registry = ();	907	@$registry = ();
785		908
…		…
832	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
833		956
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	961	close $fh;
839		962
840	if (@$objs) {	963	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	964	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	969	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
848	}	971	}
849	} else {	972	} else {
850	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
882	or return;	1005	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1007	}
885		1008
886	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
888	return ($data, $av);	1011	return ($data, $av);
889	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
890		1019
891	#############################################################################	1020	#############################################################################
892	# command handling &c	1021	# command handling &c
893		1022
894	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1037	}
909		1038
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1040
912	Register a callbackf ro execution when the client sends an extcmd packet.	1041	Register a callback for execution when the client sends an (synchronous)
		1042	extcmd packet. Ext commands will be processed in the order they are
		1043	received by the server, like other user commands. The first argument is
		1044	the logged-in player. Ext commands can only be processed after a player
		1045	has logged in successfully.
913		1046
914	If the callback returns something, it is sent back as if reply was being	1047	If the callback returns something, it is sent back as if reply was being
915	called.	1048	called.
916		1049
		1050	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1051
		1052	Register a callback for execution when the client sends an (asynchronous)
		1053	exticmd packet. Exti commands are processed by the server as soon as they
		1054	are received, i.e. out of order w.r.t. other commands. The first argument
		1055	is a client socket. Exti commands can be received anytime, even before
		1056	log-in.
		1057
		1058	If the callback returns something, it is sent back as if reply was being
		1059	called.
		1060
917	=cut	1061	=cut
918		1062
919	sub register_extcmd {	1063	sub register_extcmd {
920	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
921		1065
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
926	}	1073	}
927		1074
928	cf::player->attach (	1075	cf::player->attach (
929	on_command => sub {	1076	on_command => sub {
930	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1086	cf::override;
940	},	1087	},
941	on_extcmd => sub {	1088	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
943		1090
944	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1092
946	if (ref $msg) {	1093	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	1097	}
951	}	1098	}
952	} else {	1099	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		1102
956	cf::override;	1103	cf::override;
957	},	1104	},
958	);	1105	);
959		1106
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	s/^\s+//;
		1420	s/\s+$//;
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
		1430	=item $player->ext_reply ($msgid, %msg)
		1431
		1432	Sends an ext reply to the player.
		1433
		1434	=cut
		1435
		1436	sub ext_reply($$%) {
		1437	my ($self, $id, %msg) = @_;
		1438
		1439	$msg{msgid} = $id;
		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1441	}
		1442
		1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
967	my ($path) = @_;	1470	my ($path) = @_;
968		1471
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1472	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1473
975	warn "loading '$path' into '$pkg'\n";	1474	for my $region (list) {
976		1475	if ($region->match && $path =~ $region->match) {
977	open my $fh, "<:utf8", $path	1476	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1477	if $region->specificity > $specificity;
979		1478	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1479	}
1009		1480
1010	# remove commands	1481	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1482	}
1116		1483
1117	=back	1484	=back
1118
1119		1485
1120	=head3 cf::map	1486	=head3 cf::map
1121		1487
1122	=over 4	1488	=over 4
1123		1489
…		…
1126	package cf::map;	1492	package cf::map;
1127		1493
1128	use Fcntl;	1494	use Fcntl;
1129	use Coro::AIO;	1495	use Coro::AIO;
1130		1496
		1497	use overload
		1498	'""' => \&as_string,
		1499	fallback => 1;
		1500
1131	our $MAX_RESET = 7200;	1501	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1502	our $DEFAULT_RESET = 3000;
1133		1503
1134	sub generate_random_map {	1504	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1505	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1506	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1507	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1508	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1509	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1510	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1511	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1512	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1513	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1514	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1515	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1516	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1517	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1518	(cf::region::find $rmp->{region}), $rmp->{custom}
		1519	)
		1520	}
		1521
		1522	=item cf::map->register ($regex, $prio)
		1523
		1524	Register a handler for the map path matching the given regex at the
		1525	givne priority (higher is better, built-in handlers have priority 0, the
		1526	default).
		1527
		1528	=cut
		1529
		1530	sub register {
		1531	my (undef, $regex, $prio) = @_;
		1532	my $pkg = caller;
		1533
		1534	no strict;
		1535	push @{"$pkg\::ISA"}, __PACKAGE__;
		1536
		1537	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1538	}
		1539
		1540	# also paths starting with '/'
		1541	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1542
		1543	sub thawer_merge {
		1544	my ($self, $merge) = @_;
		1545
		1546	# we have to keep some variables in memory intact
		1547	local $self->{path};
		1548	local $self->{load_path};
		1549
		1550	$self->SUPER::thawer_merge ($merge);
		1551	}
		1552
		1553	sub normalise {
		1554	my ($path, $base) = @_;
		1555
		1556	$path = "$path"; # make sure its a string
		1557
		1558	$path =~ s/\.map$//;
		1559
		1560	# map plan:
		1561	#
		1562	# /! non-realised random map exit (special hack!)
		1563	# {... are special paths that are not being touched
		1564	# ?xxx/... are special absolute paths
		1565	# ?random/... random maps
		1566	# /... normal maps
		1567	# ~user/... per-player map of a specific user
		1568
		1569	$path =~ s/$PATH_SEP/\//go;
		1570
		1571	# treat it as relative path if it starts with
		1572	# something that looks reasonable
		1573	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1574	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1575
		1576	$base =~ s{[^/]+/?$}{};
		1577	$path = "$base/$path";
		1578	}
		1579
		1580	for ($path) {
		1581	redo if s{//}{/};
		1582	redo if s{/\.?/}{/};
		1583	redo if s{/[^/]+/\.\./}{/};
		1584	}
		1585
		1586	$path
		1587	}
		1588
		1589	sub new_from_path {
		1590	my (undef, $path, $base) = @_;
		1591
		1592	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1593
		1594	$path = normalise $path, $base;
		1595
		1596	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1597	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1598	my $self = bless cf::map::new, $pkg;
		1599	$self->{path} = $path; $self->path ($path);
		1600	$self->init; # pass $1 etc.
		1601	return $self;
		1602	}
		1603	}
		1604
		1605	Carp::carp "unable to resolve path '$path' (base '$base').";
		1606	()
		1607	}
		1608
		1609	sub init {
		1610	my ($self) = @_;
		1611
		1612	$self
		1613	}
		1614
		1615	sub as_string {
		1616	my ($self) = @_;
		1617
		1618	"$self->{path}"
		1619	}
		1620
		1621	# the displayed name, this is a one way mapping
		1622	sub visible_name {
		1623	&as_string
		1624	}
		1625
		1626	# the original (read-only) location
		1627	sub load_path {
		1628	my ($self) = @_;
		1629
		1630	"$MAPDIR/$self->{path}.map"
		1631	}
		1632
		1633	# the temporary/swap location
		1634	sub save_path {
		1635	my ($self) = @_;
		1636
		1637	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1638	"$TMPDIR/$path.map"
		1639	}
		1640
		1641	# the unique path, undef == no special unique path
		1642	sub uniq_path {
		1643	my ($self) = @_;
		1644
		1645	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1646	"$UNIQUEDIR/$path"
1151	}	1647	}
1152		1648
1153	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1154	# all maps in C++...	1650	# all maps in C++...
1155	sub change_all_map_light {	1651	sub change_all_map_light {
…		…
1157		1653
1158	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
1160	}	1656	}
1161		1657
		1658	sub decay_objects {
		1659	my ($self) = @_;
		1660
		1661	return if $self->{deny_reset};
		1662
		1663	$self->do_decay_objects;
		1664	}
		1665
		1666	sub unlink_save {
		1667	my ($self) = @_;
		1668
		1669	utf8::encode (my $save = $self->save_path);
		1670	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1671	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1672	}
		1673
1162	sub try_load_header($) {	1674	sub load_header_from($) {
1163	my ($path) = @_;	1675	my ($self, $path) = @_;
1164		1676
1165	utf8::encode $path;	1677	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1678	#aio_open $path, O_RDONLY, 0
		1679	# or return;
		1680
		1681	$self->_load_header ($path)
1167	or return;	1682	or return;
1168		1683
1169	my $map = cf::map::new	1684	$self->{load_path} = $path;
		1685
		1686	1
		1687	}
		1688
		1689	sub load_header_orig {
		1690	my ($self) = @_;
		1691
		1692	$self->load_header_from ($self->load_path)
		1693	}
		1694
		1695	sub load_header_temp {
		1696	my ($self) = @_;
		1697
		1698	$self->load_header_from ($self->save_path)
		1699	}
		1700
		1701	sub prepare_temp {
		1702	my ($self) = @_;
		1703
		1704	$self->last_access ((delete $self->{last_access})
		1705	|| $cf::RUNTIME); #d#
		1706	# safety
		1707	$self->{instantiate_time} = $cf::RUNTIME
		1708	if $self->{instantiate_time} > $cf::RUNTIME;
		1709	}
		1710
		1711	sub prepare_orig {
		1712	my ($self) = @_;
		1713
		1714	$self->{load_original} = 1;
		1715	$self->{instantiate_time} = $cf::RUNTIME;
		1716	$self->last_access ($cf::RUNTIME);
		1717	$self->instantiate;
		1718	}
		1719
		1720	sub load_header {
		1721	my ($self) = @_;
		1722
		1723	if ($self->load_header_temp) {
		1724	$self->prepare_temp;
		1725	} else {
		1726	$self->load_header_orig
1170	or return;	1727	or return;
		1728	$self->prepare_orig;
		1729	}
1171		1730
1172	$map->load_header ($path)	1731	$self->{deny_reset} = 1
1173	or return;	1732	if $self->no_reset;
1174		1733
1175	$map->{load_path} = $path;	1734	$self->default_region (cf::region::find_by_path $self->{path})
		1735	unless $self->default_region;
1176		1736
1177	$map	1737	1
1178	}	1738	}
1179		1739
		1740	sub find;
1180	sub find_map {	1741	sub find {
1181	my ($path, $origin) = @_;	1742	my ($path, $origin) = @_;
1182		1743
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1744	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1745
1188	cf::lock_wait "map_find:$key";	1746	cf::lock_wait "map_find:$path";
1189		1747
1190	$cf::MAP{$key} || do {	1748	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1749	my $guard = cf::lock_acquire "map_find:$path";
1192		1750	my $map = new_from_path cf::map $path
1193	# do it the slow way
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1751	or return;
1208		1752
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1754
1222	if ($map->should_reset) {	1755	$map->load_header
		1756	or return;
		1757
		1758	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1759	# doing this can freeze the server in a sync job, obviously
		1760	#$cf::WAIT_FOR_TICK->wait;
1223	$map->reset;	1761	$map->reset;
1224	undef $guard;	1762	undef $guard;
1225	$map = find_map $path;	1763	return find $path;
1226	}	1764	}
1227		1765
1228	$cf::MAP{$key} = $map	1766	$cf::MAP{$path} = $map
1229	}	1767	}
1230	}	1768	}
		1769
		1770	sub pre_load { }
		1771	sub post_load { }
1231		1772
1232	sub load {	1773	sub load {
1233	my ($self) = @_;	1774	my ($self) = @_;
1234		1775
		1776	local $self->{deny_reset} = 1; # loading can take a long time
		1777
1235	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1236	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1781	my $guard = cf::lock_acquire "map_load:$path";
1237		1782
1238	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1239		1784
1240	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1241		1786
1242	$self->alloc;	1787	$self->alloc;
		1788
		1789	$self->pre_load;
		1790	Coro::cede;
		1791
1243	$self->load_objects ($self->{load_path}, 1)	1792	$self->_load_objects ($self->{load_path}, 1)
1244	or return;	1793	or return;
1245		1794
1246	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1247	if delete $self->{load_original};	1796	if delete $self->{load_original};
1248		1797
1249	if (my $uniq = $path->uniq_path) {	1798	if (my $uniq = $self->uniq_path) {
1250	utf8::encode $uniq;	1799	utf8::encode $uniq;
1251	if (aio_open $uniq, O_RDONLY, 0) {	1800	if (aio_open $uniq, O_RDONLY, 0) {
1252	$self->clear_unique_items;	1801	$self->clear_unique_items;
1253	$self->load_objects ($uniq, 0);	1802	$self->_load_objects ($uniq, 0);
1254	}	1803	}
1255	}	1804	}
1256		1805
		1806	Coro::cede;
1257	# now do the right thing for maps	1807	# now do the right thing for maps
1258	$self->link_multipart_objects;	1808	$self->link_multipart_objects;
1259
1260	if ($self->{path}->is_style_map) {
1261	$self->{deny_save} = 1;
1262	$self->{deny_reset} = 1;
1263	} else {
1264	$self->fix_auto_apply;
1265	$self->decay_objects;
1266	$self->update_buttons;
1267	$self->set_darkness_map;
1268	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1269	unless $self->difficulty;	1810	unless $self->difficulty;
		1811	Coro::cede;
		1812
		1813	unless ($self->{deny_activate}) {
		1814	$self->decay_objects;
		1815	$self->fix_auto_apply;
		1816	$self->update_buttons;
		1817	Coro::cede;
		1818	$self->set_darkness_map;
		1819	Coro::cede;
1270	$self->activate;	1820	$self->activate;
1271	}	1821	}
1272		1822
1273	$self->in_memory (cf::MAP_IN_MEMORY);	1823	$self->in_memory (cf::MAP_IN_MEMORY);
1274	}	1824	}
1275		1825
1276	sub load_map_sync {	1826	$self->post_load;
		1827	}
		1828
		1829	sub customise_for {
		1830	my ($self, $ob) = @_;
		1831
		1832	return find "~" . $ob->name . "/" . $self->{path}
		1833	if $self->per_player;
		1834
		1835	# return find "?party/" . $ob->name . "/" . $self->{path}
		1836	# if $self->per_party;
		1837
		1838	$self
		1839	}
		1840
		1841	# find and load all maps in the 3x3 area around a map
		1842	sub load_diag {
		1843	my ($map) = @_;
		1844
		1845	my @diag; # diagonal neighbours
		1846
		1847	for (0 .. 3) {
		1848	my $neigh = $map->tile_path ($_)
		1849	or next;
		1850	$neigh = find $neigh, $map
		1851	or next;
		1852	$neigh->load;
		1853
		1854	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1855	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1856	}
		1857
		1858	for (@diag) {
		1859	my $neigh = find @$_
		1860	or next;
		1861	$neigh->load;
		1862	}
		1863	}
		1864
		1865	sub find_sync {
1277	my ($path, $origin) = @_;	1866	my ($path, $origin) = @_;
1278		1867
1279	#warn "load_map_sync<$path, $origin>\n";#d#	1868	cf::sync_job { find $path, $origin }
		1869	}
1280		1870
1281	cf::sync_job {	1871	sub do_load_sync {
1282	my $map = cf::map::find_map $path, $origin	1872	my ($map) = @_;
1283	or return;	1873
		1874	cf::sync_job { $map->load };
		1875	}
		1876
		1877	our %MAP_PREFETCH;
		1878	our $MAP_PREFETCHER = undef;
		1879
		1880	sub find_async {
		1881	my ($path, $origin) = @_;
		1882
		1883	$path = normalise $path, $origin && $origin->{path};
		1884
		1885	if (my $map = $cf::MAP{$path}) {
		1886	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1887	}
		1888
		1889	undef $MAP_PREFETCH{$path};
		1890	$MAP_PREFETCHER ||= cf::async {
		1891	while (%MAP_PREFETCH) {
		1892	for my $path (keys %MAP_PREFETCH) {
		1893	my $map = find $path
		1894	or next;
1284	$map->load;	1895	$map->load;
1285	$map	1896
		1897	delete $MAP_PREFETCH{$path};
		1898	}
		1899	}
		1900	undef $MAP_PREFETCHER;
1286	}	1901	};
		1902	$MAP_PREFETCHER->prio (6);
		1903
		1904	()
1287	}	1905	}
1288		1906
1289	sub save {	1907	sub save {
1290	my ($self) = @_;	1908	my ($self) = @_;
1291		1909
		1910	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1911
1292	$self->{last_save} = $cf::RUNTIME;	1912	$self->{last_save} = $cf::RUNTIME;
1293		1913
1294	return unless $self->dirty;	1914	return unless $self->dirty;
1295		1915
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1916	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1917	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1918
1299	$self->{load_path} = $save;	1919	$self->{load_path} = $save;
1300		1920
1301	return if $self->{deny_save};	1921	return if $self->{deny_save};
1302		1922
		1923	local $self->{last_access} = $self->last_access;#d#
		1924
		1925	cf::async {
		1926	$_->contr->save for $self->players;
		1927	};
		1928
1303	if ($uniq) {	1929	if ($uniq) {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1930	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1305	$self->save_objects ($uniq, cf::IO_UNIQUES);	1931	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1306	} else {	1932	} else {
1307	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1933	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1308	}	1934	}
1309	}	1935	}
1310		1936
1311	sub swap_out {	1937	sub swap_out {
1312	my ($self) = @_;	1938	my ($self) = @_;
		1939
		1940	# save first because save cedes
		1941	$self->save;
		1942
		1943	my $lock = cf::lock_acquire "map_data:" . $self->path;
1313		1944
1314	return if $self->players;	1945	return if $self->players;
1315	return if $self->in_memory != cf::MAP_IN_MEMORY;	1946	return if $self->in_memory != cf::MAP_IN_MEMORY;
1316	return if $self->{deny_save};	1947	return if $self->{deny_save};
1317		1948
1318	$self->save;
1319	$self->clear;	1949	$self->clear;
1320	$self->in_memory (cf::MAP_SWAPPED);	1950	$self->in_memory (cf::MAP_SWAPPED);
1321	}	1951	}
1322		1952
1323	sub reset_at {	1953	sub reset_at {
1324	my ($self) = @_;	1954	my ($self) = @_;
1325		1955
1326	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1327	return 1e99 if $self->{path}{user_rel};
1328	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1329		1958
1330	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1331	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1332		1961
…		…
1337	my ($self) = @_;	1966	my ($self) = @_;
1338		1967
1339	$self->reset_at <= $cf::RUNTIME	1968	$self->reset_at <= $cf::RUNTIME
1340	}	1969	}
1341		1970
1342	sub unlink_save {
1343	my ($self) = @_;
1344
1345	utf8::encode (my $save = $self->{path}->save_path);
1346	aioreq_pri 3; IO::AIO::aio_unlink $save;
1347	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1348	}
1349
1350	sub rename {
1351	my ($self, $new_path) = @_;
1352
1353	$self->unlink_save;
1354
1355	delete $cf::MAP{$self->path};
1356	$self->{path} = new cf::path $new_path;
1357	$self->path ($self->{path}->as_string);
1358	$cf::MAP{$self->path} = $self;
1359
1360	$self->save;
1361	}
1362
1363	sub reset {	1971	sub reset {
1364	my ($self) = @_;	1972	my ($self) = @_;
1365		1973
		1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1975
1366	return if $self->players;	1976	return if $self->players;
1367	return if $self->{path}{user_rel};#d#
1368		1977
1369	warn "resetting map ", $self->path;#d#	1978	warn "resetting map ", $self->path;
		1979
		1980	$self->in_memory (cf::MAP_SWAPPED);
		1981
		1982	# need to save uniques path
		1983	unless ($self->{deny_save}) {
		1984	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1985
		1986	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1987	if $uniq;
		1988	}
1370		1989
1371	delete $cf::MAP{$self->path};	1990	delete $cf::MAP{$self->path};
		1991
		1992	$self->clear;
1372		1993
1373	$_->clear_links_to ($self) for values %cf::MAP;	1994	$_->clear_links_to ($self) for values %cf::MAP;
1374		1995
1375	$self->unlink_save;	1996	$self->unlink_save;
1376	$self->destroy;	1997	$self->destroy;
…		…
1379	my $nuke_counter = "aaaa";	2000	my $nuke_counter = "aaaa";
1380		2001
1381	sub nuke {	2002	sub nuke {
1382	my ($self) = @_;	2003	my ($self) = @_;
1383		2004
		2005	delete $cf::MAP{$self->path};
		2006
		2007	$self->unlink_save;
		2008
		2009	bless $self, "cf::map";
		2010	delete $self->{deny_reset};
1384	$self->{deny_save} = 1;	2011	$self->{deny_save} = 1;
1385	$self->reset_timeout (1);	2012	$self->reset_timeout (1);
1386	$self->rename ("{nuke}/" . ($nuke_counter++));	2013	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2014
		2015	$cf::MAP{$self->path} = $self;
		2016
1387	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1388	}	2018	}
1389		2019
1390	sub customise_for {	2020	=item $maps = cf::map::tmp_maps
1391	my ($map, $ob) = @_;
1392		2021
1393	if ($map->per_player) {	2022	Returns an arrayref with all map paths of currently instantiated and saved
1394	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
1395	}	2028	[
1396		2029	map {
1397	$map	2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
1398	}	2036	}
1399		2037
1400	sub emergency_save {	2038	=item $maps = cf::map::random_maps
1401	local $cf::FREEZE = 1;
1402		2039
1403	warn "enter emergency map save\n";	2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
1404		2042
1405	cf::sync_job {	2043	=cut
1406	warn "begin emergency map save\n";
1407	$_->save for values %cf::MAP;
1408	};
1409		2044
1410	warn "end emergency map save\n";	2045	sub random_maps() {
		2046	[
		2047	map {
		2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise "?random/$_"
		2051	: ()
		2052	} @{ aio_readdir $RANDOMDIR or [] }
		2053	]
		2054	}
		2055
		2056	=item cf::map::unique_maps
		2057
		2058	Returns an arrayref of paths of all shared maps that have
		2059	instantiated unique items. May block.
		2060
		2061	=cut
		2062
		2063	sub unique_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $UNIQUEDIR or [] }
		2071	]
1411	}	2072	}
1412		2073
1413	package cf;	2074	package cf;
1414		2075
1415	=back	2076	=back
1416		2077
		2078	=head3 cf::object
		2079
		2080	=cut
		2081
		2082	package cf::object;
		2083
		2084	=over 4
		2085
		2086	=item $ob->inv_recursive
		2087
		2088	Returns the inventory of the object _and_ their inventories, recursively.
		2089
		2090	=cut
		2091
		2092	sub inv_recursive_;
		2093	sub inv_recursive_ {
		2094	map { $_, inv_recursive_ $_->inv } @_
		2095	}
		2096
		2097	sub inv_recursive {
		2098	inv_recursive_ inv $_[0]
		2099	}
		2100
		2101	package cf;
		2102
		2103	=back
1417		2104
1418	=head3 cf::object::player	2105	=head3 cf::object::player
1419		2106
1420	=over 4	2107	=over 4
1421		2108
…		…
1435		2122
1436	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1437		2124
1438	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1439	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1440	} else {	2128	} else {
		2129	my $pl = $self->contr;
		2130
		2131	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2132	my $diag = $pl->{npc_dialog};
		2133	$diag->{pl}->ext_reply (
		2134	$diag->{id},
		2135	msgtype => "reply",
		2136	msg => $diag->{pl}->expand_cfpod ($msg),
		2137	add_topics => []
		2138	);
		2139
		2140	} else {
1441	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1442	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1443	}	2144	}
1444	}	2145	}
1445		2146
1446	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1447		2148
…		…
1461		2162
1462	=item $player_object->enter_link	2163	=item $player_object->enter_link
1463		2164
1464	Freezes the player and moves him/her to a special map (C<{link}>).	2165	Freezes the player and moves him/her to a special map (C<{link}>).
1465		2166
1466	The player should be reaosnably safe there for short amounts of time. You	2167	The player should be reasonably safe there for short amounts of time. You
1467	I<MUST> call C<leave_link> as soon as possible, though.	2168	I<MUST> call C<leave_link> as soon as possible, though.
1468		2169
		2170	Will never block.
		2171
1469	=item $player_object->leave_link ($map, $x, $y)	2172	=item $player_object->leave_link ($map, $x, $y)
1470		2173
1471	Moves the player out of the specila link map onto the given map. If the	2174	Moves the player out of the special C<{link}> map onto the specified
1472	map is not valid (or omitted), the player will be moved back to the	2175	map. If the map is not valid (or omitted), the player will be moved back
1473	location he/she was before the call to C<enter_link>, or, if that fails,	2176	to the location he/she was before the call to C<enter_link>, or, if that
1474	to the emergency map position.	2177	fails, to the emergency map position.
1475		2178
1476	Might block.	2179	Might block.
1477		2180
1478	=cut	2181	=cut
		2182
		2183	sub link_map {
		2184	unless ($LINK_MAP) {
		2185	$LINK_MAP = cf::map::find "{link}"
		2186	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2187	$LINK_MAP->load;
		2188	}
		2189
		2190	$LINK_MAP
		2191	}
1479		2192
1480	sub cf::object::player::enter_link {	2193	sub cf::object::player::enter_link {
1481	my ($self) = @_;	2194	my ($self) = @_;
1482		2195
1483	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1484		2197
1485	return if $self->map == $LINK_MAP;	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1486		2199
1487	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1488	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1489		2202
1490	$self->enter_map ($LINK_MAP, 20, 20);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1491	}	2204	}
1492		2205
1493	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1494	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1495		2210
1496	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1497		2212
1498	unless ($map) {	2213	unless ($map) {
1499	# restore original map position	2214	# restore original map position
1500	($map, $x, $y) = @{ $link_pos || [] };	2215	($map, $x, $y) = @{ $link_pos || [] };
1501	$map = cf::map::find_map $map;	2216	$map = cf::map::find $map;
1502		2217
1503	unless ($map) {	2218	unless ($map) {
1504	($map, $x, $y) = @$EMERGENCY_POSITION;	2219	($map, $x, $y) = @$EMERGENCY_POSITION;
1505	$map = cf::map::find_map $map	2220	$map = cf::map::find $map
1506	or die "FATAL: cannot load emergency map\n";	2221	or die "FATAL: cannot load emergency map\n";
1507	}	2222	}
1508	}	2223	}
1509		2224
1510	($x, $y) = (-1, -1)	2225	($x, $y) = (-1, -1)
…		…
1513	# use -1 or undef as default coordinates, not 0, 0	2228	# use -1 or undef as default coordinates, not 0, 0
1514	($x, $y) = ($map->enter_x, $map->enter_y)	2229	($x, $y) = ($map->enter_x, $map->enter_y)
1515	if $x <=0 && $y <= 0;	2230	if $x <=0 && $y <= 0;
1516		2231
1517	$map->load;	2232	$map->load;
		2233	$map->load_diag;
1518		2234
		2235	return unless $self->contr->active;
1519	$self->activate_recursive;	2236	$self->activate_recursive;
		2237
		2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1520	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1521	}	2240	}
1522		2241
1523	cf::player->attach (
1524	on_logout => sub {
1525	my ($pl) = @_;
1526
1527	# abort map switching before logout
1528	if ($pl->ob->{_link_pos}) {
1529	cf::sync_job {
1530	$pl->ob->leave_link
1531	};
1532	}
1533	},
1534	on_login => sub {
1535	my ($pl) = @_;
1536
1537	# try to abort aborted map switching on player login :)
1538	# should happen only on crashes
1539	if ($pl->ob->{_link_pos}) {
1540	$pl->ob->enter_link;
1541	Coro::async {
1542	# we need this sleep as the login has a concurrent enter_exit running
1543	# and this sleep increases chances of the player not ending up in scorn
1544	Coro::Timer::sleep 1;
1545	$pl->ob->leave_link;
1546	};
1547	}
1548	},
1549	);
1550
1551	=item $player_object->goto_map ($path, $x, $y)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1552		2243
1553	=cut	2244	Moves the player to the given map-path and coordinates by first freezing
		2245	her, loading and preparing them map, calling the provided $check callback
		2246	that has to return the map if sucecssful, and then unfreezes the player on
		2247	the new (success) or old (failed) map position.
1554		2248
		2249	=cut
		2250
		2251	our $GOTOGEN;
		2252
1555	sub cf::object::player::goto_map {	2253	sub cf::object::player::goto {
1556	my ($self, $path, $x, $y) = @_;	2254	my ($self, $path, $x, $y, $check) = @_;
		2255
		2256	# do generation counting so two concurrent goto's will be executed in-order
		2257	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1557		2258
1558	$self->enter_link;	2259	$self->enter_link;
1559		2260
1560	(Coro::async {	2261	(async {
1561	$path = new cf::path $path;	2262	my $map = eval {
1562
1563	my $map = cf::map::find_map $path->as_string;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1564	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
1565		2267	$map = $check->($map) if $check && $map;
1566	# warn "entering ", $map->path, " at ($x, $y)\n"	2268	} else {
1567	# if $map;
1568
1569	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2269	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2270	}
1570		2271
		2272	$map
		2273	};
		2274
		2275	if ($@) {
		2276	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2277	LOG llevError | logBacktrace, Carp::longmess $@;
		2278	}
		2279
		2280	if ($gen == $self->{_goto_generation}) {
		2281	delete $self->{_goto_generation};
1571	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1572	})->prio (1);	2284	})->prio (1);
1573	}	2285	}
1574		2286
1575	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1576		2288
…		…
1578		2290
1579	sub parse_random_map_params {	2291	sub parse_random_map_params {
1580	my ($spec) = @_;	2292	my ($spec) = @_;
1581		2293
1582	my $rmp = { # defaults	2294	my $rmp = { # defaults
1583	xsize => 10,	2295	xsize => (cf::rndm 15, 40),
1584	ysize => 10,	2296	ysize => (cf::rndm 15, 40),
		2297	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2298	#layout => string,
1585	};	2299	};
1586		2300
1587	for (split /\n/, $spec) {	2301	for (split /\n/, $spec) {
1588	my ($k, $v) = split /\s+/, $_, 2;	2302	my ($k, $v) = split /\s+/, $_, 2;
1589		2303
…		…
1593	$rmp	2307	$rmp
1594	}	2308	}
1595		2309
1596	sub prepare_random_map {	2310	sub prepare_random_map {
1597	my ($exit) = @_;	2311	my ($exit) = @_;
		2312
		2313	my $guard = cf::lock_acquire "exit_prepare:$exit";
1598		2314
1599	# all this does is basically replace the /! path by	2315	# all this does is basically replace the /! path by
1600	# a new random map path (?random/...) with a seed	2316	# a new random map path (?random/...) with a seed
1601	# that depends on the exit object	2317	# that depends on the exit object
1602		2318
1603	my $rmp = parse_random_map_params $exit->msg;	2319	my $rmp = parse_random_map_params $exit->msg;
1604		2320
1605	if ($exit->map) {	2321	if ($exit->map) {
1606	$rmp->{region} = $exit->map->region_name;	2322	$rmp->{region} = $exit->region->name;
1607	$rmp->{origin_map} = $exit->map->path;	2323	$rmp->{origin_map} = $exit->map->path;
1608	$rmp->{origin_x} = $exit->x;	2324	$rmp->{origin_x} = $exit->x;
1609	$rmp->{origin_y} = $exit->y;	2325	$rmp->{origin_y} = $exit->y;
1610	}	2326	}
1611		2327
1612	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1613		2329
1614	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1615	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
		2332	my $meta = "$RANDOMDIR/$md5.meta";
1616		2333
1617	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2334	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1618	aio_write $fh, 0, (length $data), $data, 0;	2335	aio_write $fh, 0, (length $data), $data, 0;
		2336	undef $fh;
		2337	aio_rename "$meta~", $meta;
1619		2338
1620	$exit->slaying ("?random/$md5");	2339	$exit->slaying ("?random/$md5");
1621	$exit->msg (undef);	2340	$exit->msg (undef);
1622	}	2341	}
1623	}	2342	}
…		…
1625	sub cf::object::player::enter_exit {	2344	sub cf::object::player::enter_exit {
1626	my ($self, $exit) = @_;	2345	my ($self, $exit) = @_;
1627		2346
1628	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
1629		2348
		2349	if ($exit->slaying eq "/!") {
		2350	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2351	# the problem is that $exit might not survive long enough
		2352	# so it needs to be done right now, right here
		2353	cf::sync_job { prepare_random_map $exit };
		2354	}
		2355
		2356	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2357	my $hp = $exit->stats->hp;
		2358	my $sp = $exit->stats->sp;
		2359
1630	$self->enter_link;	2360	$self->enter_link;
1631		2361
1632	(Coro::async {	2362	(async {
		2363	$self->deactivate_recursive; # just to be sure
1633	unless (eval {	2364	unless (eval {
1634		2365	$self->goto ($slaying, $hp, $sp);
1635	prepare_random_map $exit
1636	if $exit->slaying eq "/!";
1637
1638	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1639	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1640		2366
1641	1;	2367	1;
1642	}) {	2368	}) {
1643	$self->message ("Something went wrong deep within the crossfire server. "	2369	$self->message ("Something went wrong deep within the crossfire server. "
1644	. "I'll try to bring you back to the map you were before. "	2370	. "I'll try to bring you back to the map you were before. "
1645	. "Please report this to the dungeon master",	2371	. "Please report this to the dungeon master!",
1646	cf::NDI_UNIQUE | cf::NDI_RED);	2372	cf::NDI_UNIQUE | cf::NDI_RED);
1647		2373
1648	warn "ERROR in enter_exit: $@";	2374	warn "ERROR in enter_exit: $@";
1649	$self->leave_link;	2375	$self->leave_link;
1650	}	2376	}
1651	})->prio (1);	2377	})->prio (1);
…		…
1664		2390
1665	sub cf::client::send_drawinfo {	2391	sub cf::client::send_drawinfo {
1666	my ($self, $text, $flags) = @_;	2392	my ($self, $text, $flags) = @_;
1667		2393
1668	utf8::encode $text;	2394	utf8::encode $text;
1669	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2395	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1670	}	2396	}
1671		2397
		2398	=item $client->send_msg ($color, $type, $msg, [extra...])
		2399
		2400	Send a drawinfo or msg packet to the client, formatting the msg for the
		2401	client if neccessary. C<$type> should be a string identifying the type of
		2402	the message, with C<log> being the default. If C<$color> is negative, suppress
		2403	the message unless the client supports the msg packet.
		2404
		2405	=cut
		2406
		2407	sub cf::client::send_msg {
		2408	my ($self, $color, $type, $msg, @extra) = @_;
		2409
		2410	$msg = $self->pl->expand_cfpod ($msg);
		2411
		2412	if ($self->can_msg) {
		2413	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2414	} else {
		2415	# replace some tags by gcfclient-compatible ones
		2416	for ($msg) {
		2417	1 while
		2418	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2419	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2420	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2421	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2422	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2423	}
		2424
		2425	if ($color >= 0) {
		2426	if (0 && $msg =~ /\[/) {
		2427	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2428	} else {
		2429	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2430	$self->send_packet ("drawinfo $color $msg")
		2431	}
		2432	}
		2433	}
		2434	}
		2435
		2436	=item $client->ext_event ($type, %msg)
		2437
		2438	Sends an ext event to the client.
		2439
		2440	=cut
		2441
		2442	sub cf::client::ext_event($$%) {
		2443	my ($self, $type, %msg) = @_;
		2444
		2445	$msg{msgtype} = "event_$type";
		2446	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2447	}
1672		2448
1673	=item $success = $client->query ($flags, "text", \&cb)	2449	=item $success = $client->query ($flags, "text", \&cb)
1674		2450
1675	Queues a query to the client, calling the given callback with	2451	Queues a query to the client, calling the given callback with
1676	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2452	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1677	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2453	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1678		2454
1679	Queries can fail, so check the return code. Or don't, as queries will become	2455	Queries can fail, so check the return code. Or don't, as queries will
1680	reliable at some point in the future.	2456	become reliable at some point in the future.
1681		2457
1682	=cut	2458	=cut
1683		2459
1684	sub cf::client::query {	2460	sub cf::client::query {
1685	my ($self, $flags, $text, $cb) = @_;	2461	my ($self, $flags, $text, $cb) = @_;
…		…
1693	utf8::encode $text;	2469	utf8::encode $text;
1694	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2470	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1695		2471
1696	$self->send_packet ($self->{query_queue}[0][0])	2472	$self->send_packet ($self->{query_queue}[0][0])
1697	if @{ $self->{query_queue} } == 1;	2473	if @{ $self->{query_queue} } == 1;
		2474
		2475	1
1698	}	2476	}
1699		2477
1700	cf::client->attach (	2478	cf::client->attach (
		2479	on_connect => sub {
		2480	my ($ns) = @_;
		2481
		2482	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2483	},
1701	on_reply => sub {	2484	on_reply => sub {
1702	my ($ns, $msg) = @_;	2485	my ($ns, $msg) = @_;
1703		2486
1704	# this weird shuffling is so that direct followup queries	2487	# this weird shuffling is so that direct followup queries
1705	# get handled first	2488	# get handled first
1706	my $queue = delete $ns->{query_queue};	2489	my $queue = delete $ns->{query_queue}
		2490	or return; # be conservative, not sure how that can happen, but we saw a crash here
1707		2491
1708	(shift @$queue)->[1]->($msg);	2492	(shift @$queue)->[1]->($msg);
		2493	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1709		2494
1710	push @{ $ns->{query_queue} }, @$queue;	2495	push @{ $ns->{query_queue} }, @$queue;
1711		2496
1712	if (@{ $ns->{query_queue} } == @$queue) {	2497	if (@{ $ns->{query_queue} } == @$queue) {
1713	if (@$queue) {	2498	if (@$queue) {
…		…
1715	} else {	2500	} else {
1716	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2501	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1717	}	2502	}
1718	}	2503	}
1719	},	2504	},
		2505	on_exticmd => sub {
		2506	my ($ns, $buf) = @_;
		2507
		2508	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2509
		2510	if (ref $msg) {
		2511	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2512	if (my %reply = $cb->($ns, $msg)) {
		2513	$reply{msgid} = $msg->{msgid};
		2514	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2515	}
		2516	}
		2517	} else {
		2518	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2519	}
		2520
		2521	cf::override;
		2522	},
1720	);	2523	);
1721		2524
1722	=item $client->coro (\&cb)	2525	=item $client->async (\&cb)
1723		2526
1724	Create a new coroutine, running the specified callback. The coroutine will	2527	Create a new coroutine, running the specified callback. The coroutine will
1725	be automatically cancelled when the client gets destroyed (e.g. on logout,	2528	be automatically cancelled when the client gets destroyed (e.g. on logout,
1726	or loss of connection).	2529	or loss of connection).
1727		2530
1728	=cut	2531	=cut
1729		2532
1730	sub cf::client::coro {	2533	sub cf::client::async {
1731	my ($self, $cb) = @_;	2534	my ($self, $cb) = @_;
1732		2535
1733	my $coro; $coro = async {	2536	my $coro = &Coro::async ($cb);
1734	eval {
1735	$cb->();
1736	};
1737	warn $@ if $@;
1738	};
1739		2537
1740	$coro->on_destroy (sub {	2538	$coro->on_destroy (sub {
1741	delete $self->{_coro}{$coro+0};	2539	delete $self->{_coro}{$coro+0};
1742	});	2540	});
1743		2541
…		…
1776		2574
1777	# here we export the classes and methods available to script code	2575	# here we export the classes and methods available to script code
1778		2576
1779	=pod	2577	=pod
1780		2578
1781	The following fucntions and emthods are available within a safe environment:	2579	The following functions and methods are available within a safe environment:
1782		2580
1783	cf::object contr pay_amount pay_player map	2581	cf::object contr pay_amount pay_player map
1784	cf::object::player player	2582	cf::object::player player
1785	cf::player peaceful	2583	cf::player peaceful
1786	cf::map trigger	2584	cf::map trigger
…		…
1867	=back	2665	=back
1868		2666
1869	=cut	2667	=cut
1870		2668
1871	#############################################################################	2669	#############################################################################
		2670	# the server's init and main functions
1872		2671
1873	=head2 EXTENSION DATABASE SUPPORT	2672	sub load_facedata($) {
		2673	my ($path) = @_;
1874		2674
1875	Crossfire maintains a very simple database for extension use. It can	2675	warn "loading facedata from $path\n";
1876	currently store anything that can be serialised using Storable, which
1877	excludes objects.
1878		2676
1879	The parameter C<$family> should best start with the name of the extension	2677	my $facedata;
1880	using it, it should be unique.	2678	0 < aio_load $path, $facedata
		2679	or die "$path: $!";
1881		2680
1882	=over 4	2681	$facedata = Coro::Storable::thaw $facedata;
1883		2682
1884	=item $hashref = cf::db_get $family	2683	$facedata->{version} == 2
		2684	or cf::cleanup "$path: version mismatch, cannot proceed.";
1885		2685
1886	Return a hashref for use by the extension C<$family>, which can be
1887	modified. After modifications, you have to call C<cf::db_dirty> or
1888	C<cf::db_sync>.
1889
1890	=item $value = cf::db_get $family => $key
1891
1892	Returns a single value from the database
1893
1894	=item cf::db_put $family => $hashref
1895
1896	Stores the given family hashref into the database. Updates are delayed, if
1897	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1898
1899	=item cf::db_put $family => $key => $value
1900
1901	Stores the given C<$value> in the family hash. Updates are delayed, if you
1902	want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_dirty
1905
1906	Marks the database as dirty, to be updated at a later time.
1907
1908	=item cf::db_sync
1909
1910	Immediately write the database to disk I<if it is dirty>.
1911
1912	=cut
1913
1914	our $DB;
1915
1916	{
1917	my $path = cf::localdir . "/database.pst";
1918
1919	sub db_load() {
1920	$DB = stat $path ? Storable::retrieve $path : { };
1921	}	2686	{
		2687	my $faces = $facedata->{faceinfo};
1922		2688
1923	my $pid;	2689	while (my ($face, $info) = each %$faces) {
1924		2690	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1925	sub db_save() {	2691	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1926	waitpid $pid, 0 if $pid;	2692	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1927	if (0 == ($pid = fork)) {	2693	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1928	$DB->{_meta}{version} = 1;	2694	Coro::cede;
1929	Storable::nstore $DB, "$path~";
1930	rename "$path~", $path;
1931	cf::_exit 0 if defined $pid;
1932	}
1933	}
1934
1935	my $dirty;
1936
1937	sub db_sync() {
1938	db_save if $dirty;
1939	undef $dirty;
1940	}
1941
1942	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1943	db_sync;
1944	});
1945
1946	sub db_dirty() {
1947	$dirty = 1;
1948	$idle->start;
1949	}
1950
1951	sub db_get($;$) {
1952	@_ >= 2
1953	? $DB->{$_[0]}{$_[1]}
1954	: ($DB->{$_[0]} ||= { })
1955	}
1956
1957	sub db_put($$;$) {
1958	if (@_ >= 3) {
1959	$DB->{$_[0]}{$_[1]} = $_[2];
1960	} else {
1961	$DB->{$_[0]} = $_[1];
1962	}
1963	db_dirty;
1964	}
1965
1966	cf::global->attach (
1967	prio => 10000,
1968	on_cleanup => sub {
1969	db_sync;
1970	},	2695	}
1971	);
1972	}
1973		2696
1974	#############################################################################	2697	while (my ($face, $info) = each %$faces) {
1975	# the server's main()	2698	next unless $info->{smooth};
		2699	my $idx = cf::face::find $face
		2700	or next;
		2701	if (my $smooth = cf::face::find $info->{smooth}) {
		2702	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2703	} else {
		2704	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2705	}
		2706	Coro::cede;
		2707	}
		2708	}
		2709
		2710	{
		2711	my $anims = $facedata->{animinfo};
		2712
		2713	while (my ($anim, $info) = each %$anims) {
		2714	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2715	Coro::cede;
		2716	}
		2717
		2718	cf::anim::invalidate_all; # d'oh
		2719	}
		2720
		2721	1
		2722	}
		2723
		2724	sub reload_regions {
		2725	load_resource_file "$MAPDIR/regions"
		2726	or die "unable to load regions file\n";
		2727	}
		2728
		2729	sub reload_facedata {
		2730	load_facedata "$DATADIR/facedata"
		2731	or die "unable to load facedata\n";
		2732	}
		2733
		2734	sub reload_archetypes {
		2735	load_resource_file "$DATADIR/archetypes"
		2736	or die "unable to load archetypes\n";
		2737	#d# NEED to laod twice to resolve forward references
		2738	# this really needs to be done in an extra post-pass
		2739	# (which needs to be synchronous, so solve it differently)
		2740	load_resource_file "$DATADIR/archetypes"
		2741	or die "unable to load archetypes\n";
		2742	}
		2743
		2744	sub reload_treasures {
		2745	load_resource_file "$DATADIR/treasures"
		2746	or die "unable to load treasurelists\n";
		2747	}
		2748
		2749	sub reload_resources {
		2750	warn "reloading resource files...\n";
		2751
		2752	reload_regions;
		2753	reload_facedata;
		2754	#reload_archetypes;#d#
		2755	reload_archetypes;
		2756	reload_treasures;
		2757
		2758	warn "finished reloading resource files\n";
		2759	}
		2760
		2761	sub init {
		2762	reload_resources;
		2763	}
1976		2764
1977	sub cfg_load {	2765	sub cfg_load {
1978	open my $fh, "<:utf8", cf::confdir . "/config"	2766	open my $fh, "<:utf8", "$CONFDIR/config"
1979	or return;	2767	or return;
1980		2768
1981	local $/;	2769	local $/;
1982	*CFG = YAML::Syck::Load <$fh>;	2770	*CFG = YAML::Syck::Load <$fh>;
		2771
		2772	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2773
		2774	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2775	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2776
		2777	if (exists $CFG{mlockall}) {
		2778	eval {
		2779	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2780	and die "WARNING: m(un)lockall failed: $!\n";
		2781	};
		2782	warn $@ if $@;
		2783	}
1983	}	2784	}
1984		2785
1985	sub main {	2786	sub main {
1986	# we must not ever block the main coroutine	2787	# we must not ever block the main coroutine
1987	local $Coro::idle = sub {	2788	local $Coro::idle = sub {
1988	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2789	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1989	(Coro::unblock_sub {	2790	(async {
1990	Event::one_event;	2791	Event::one_event;
1991	})->();	2792	})->prio (Coro::PRIO_MAX);
1992	};	2793	};
1993		2794
1994	cfg_load;	2795	cfg_load;
1995	db_load;	2796	db_init;
1996	load_extensions;	2797	load_extensions;
		2798
		2799	$TICK_WATCHER->start;
1997	Event::loop;	2800	Event::loop;
1998	}	2801	}
1999		2802
2000	#############################################################################	2803	#############################################################################
2001	# initialisation	2804	# initialisation and cleanup
2002		2805
		2806	# install some emergency cleanup handlers
		2807	BEGIN {
		2808	for my $signal (qw(INT HUP TERM)) {
		2809	Event->signal (
		2810	reentrant => 0,
		2811	data => WF_AUTOCANCEL,
		2812	signal => $signal,
		2813	prio => 0,
		2814	cb => sub {
		2815	cf::cleanup "SIG$signal";
		2816	},
		2817	);
		2818	}
		2819	}
		2820
		2821	sub write_runtime {
		2822	my $runtime = "$LOCALDIR/runtime";
		2823
		2824	# first touch the runtime file to show we are still running:
		2825	# the fsync below can take a very very long time.
		2826
		2827	IO::AIO::aio_utime $runtime, undef, undef;
		2828
		2829	my $guard = cf::lock_acquire "write_runtime";
		2830
		2831	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2832	or return;
		2833
		2834	my $value = $cf::RUNTIME + 90 + 10;
		2835	# 10 is the runtime save interval, for a monotonic clock
		2836	# 60 allows for the watchdog to kill the server.
		2837
		2838	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2839	and return;
		2840
		2841	# always fsync - this file is important
		2842	aio_fsync $fh
		2843	and return;
		2844
		2845	# touch it again to show we are up-to-date
		2846	aio_utime $fh, undef, undef;
		2847
		2848	close $fh
		2849	or return;
		2850
		2851	aio_rename "$runtime~", $runtime
		2852	and return;
		2853
		2854	warn "runtime file written.\n";
		2855
		2856	1
		2857	}
		2858
		2859	sub emergency_save() {
		2860	my $freeze_guard = cf::freeze_mainloop;
		2861
		2862	warn "enter emergency perl save\n";
		2863
		2864	cf::sync_job {
		2865	# use a peculiar iteration method to avoid tripping on perl
		2866	# refcount bugs in for. also avoids problems with players
		2867	# and maps saved/destroyed asynchronously.
		2868	warn "begin emergency player save\n";
		2869	for my $login (keys %cf::PLAYER) {
		2870	my $pl = $cf::PLAYER{$login} or next;
		2871	$pl->valid or next;
		2872	$pl->save;
		2873	}
		2874	warn "end emergency player save\n";
		2875
		2876	warn "begin emergency map save\n";
		2877	for my $path (keys %cf::MAP) {
		2878	my $map = $cf::MAP{$path} or next;
		2879	$map->valid or next;
		2880	$map->save;
		2881	}
		2882	warn "end emergency map save\n";
		2883
		2884	warn "begin emergency database checkpoint\n";
		2885	BDB::db_env_txn_checkpoint $DB_ENV;
		2886	warn "end emergency database checkpoint\n";
		2887	};
		2888
		2889	warn "leave emergency perl save\n";
		2890	}
		2891
		2892	sub post_cleanup {
		2893	my ($make_core) = @_;
		2894
		2895	warn Carp::longmess "post_cleanup backtrace"
		2896	if $make_core;
		2897	}
		2898
2003	sub reload() {	2899	sub do_reload_perl() {
2004	# can/must only be called in main	2900	# can/must only be called in main
2005	if ($Coro::current != $Coro::main) {	2901	if ($Coro::current != $Coro::main) {
2006	warn "can only reload from main coroutine\n";	2902	warn "can only reload from main coroutine";
2007	return;	2903	return;
2008	}	2904	}
2009		2905
2010	warn "reloading...";	2906	warn "reloading...";
2011		2907
2012	local $FREEZE = 1;	2908	warn "entering sync_job";
		2909
		2910	cf::sync_job {
		2911	cf::write_runtime; # external watchdog should not bark
2013	cf::emergency_save;	2912	cf::emergency_save;
		2913	cf::write_runtime; # external watchdog should not bark
2014		2914
2015	eval {	2915	warn "syncing database to disk";
		2916	BDB::db_env_txn_checkpoint $DB_ENV;
		2917
2016	# if anything goes wrong in here, we should simply crash as we already saved	2918	# if anything goes wrong in here, we should simply crash as we already saved
2017		2919
2018	# cancel all watchers	2920	warn "cancelling all WF_AUTOCANCEL watchers";
2019	for (Event::all_watchers) {	2921	for (Event::all_watchers) {
2020	$_->cancel if $_->data & WF_AUTOCANCEL;	2922	$_->cancel if $_->data & WF_AUTOCANCEL;
2021	}	2923	}
2022		2924
		2925	warn "flushing outstanding aio requests";
		2926	for (;;) {
		2927	BDB::flush;
		2928	IO::AIO::flush;
		2929	Coro::cede;
		2930	last unless IO::AIO::nreqs || BDB::nreqs;
		2931	warn "iterate...";
		2932	}
		2933
		2934	++$RELOAD;
		2935
2023	# cancel all extension coros	2936	warn "cancelling all extension coros";
2024	$_->cancel for values %EXT_CORO;	2937	$_->cancel for values %EXT_CORO;
2025	%EXT_CORO = ();	2938	%EXT_CORO = ();
2026		2939
2027	# unload all extensions	2940	warn "removing commands";
2028	for (@exts) {	2941	%COMMAND = ();
		2942
		2943	warn "removing ext/exti commands";
		2944	%EXTCMD = ();
		2945	%EXTICMD = ();
		2946
		2947	warn "unloading/nuking all extensions";
		2948	for my $pkg (@EXTS) {
2029	warn "unloading <$_>";	2949	warn "... unloading $pkg";
2030	unload_extension $_;	2950
		2951	if (my $cb = $pkg->can ("unload")) {
		2952	eval {
		2953	$cb->($pkg);
		2954	1
		2955	} or warn "$pkg unloaded, but with errors: $@";
2031	}	2956	}
2032		2957
		2958	warn "... nuking $pkg";
		2959	Symbol::delete_package $pkg;
		2960	}
		2961
2033	# unload all modules loaded from $LIBDIR	2962	warn "unloading all perl modules loaded from $LIBDIR";
2034	while (my ($k, $v) = each %INC) {	2963	while (my ($k, $v) = each %INC) {
2035	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2964	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2036		2965
2037	warn "removing <$k>";	2966	warn "... unloading $k";
2038	delete $INC{$k};	2967	delete $INC{$k};
2039		2968
2040	$k =~ s/\.pm$//;	2969	$k =~ s/\.pm$//;
2041	$k =~ s/\//::/g;	2970	$k =~ s/\//::/g;
2042		2971
…		…
2045	}	2974	}
2046		2975
2047	Symbol::delete_package $k;	2976	Symbol::delete_package $k;
2048	}	2977	}
2049		2978
2050	# sync database to disk
2051	cf::db_sync;
2052	IO::AIO::flush;
2053
2054	# get rid of safe::, as good as possible	2979	warn "getting rid of safe::, as good as possible";
2055	Symbol::delete_package "safe::$_"	2980	Symbol::delete_package "safe::$_"
2056	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2981	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2057		2982
2058	# remove register_script_function callbacks
2059	# TODO
2060
2061	# unload cf.pm "a bit"	2983	warn "unloading cf.pm \"a bit\"";
2062	delete $INC{"cf.pm"};	2984	delete $INC{"cf.pm"};
		2985	delete $INC{"cf/pod.pm"};
2063		2986
2064	# don't, removes xs symbols, too,	2987	# don't, removes xs symbols, too,
2065	# and global variables created in xs	2988	# and global variables created in xs
2066	#Symbol::delete_package __PACKAGE__;	2989	#Symbol::delete_package __PACKAGE__;
2067		2990
2068	# reload cf.pm	2991	warn "unload completed, starting to reload now";
		2992
2069	warn "reloading cf.pm";	2993	warn "reloading cf.pm";
2070	require cf;	2994	require cf;
2071	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2995	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2072		2996
2073	# load config and database again	2997	warn "loading config and database again";
2074	cf::cfg_load;	2998	cf::cfg_load;
2075	cf::db_load;
2076		2999
2077	# load extensions
2078	warn "load extensions";	3000	warn "loading extensions";
2079	cf::load_extensions;	3001	cf::load_extensions;
2080		3002
2081	# reattach attachments to objects	3003	warn "reattaching attachments to objects/players";
2082	warn "reattach";	3004	_global_reattach; # objects, sockets
2083	_global_reattach;	3005	warn "reattaching attachments to maps";
2084	};	3006	reattach $_ for values %MAP;
		3007	warn "reattaching attachments to players";
		3008	reattach $_ for values %PLAYER;
2085		3009
2086	if ($@) {	3010	warn "leaving sync_job";
		3011
		3012	1
		3013	} or do {
2087	warn $@;	3014	warn $@;
2088	warn "error while reloading, exiting.";	3015	warn "error while reloading, exiting.";
2089	exit 1;	3016	exit 1;
2090	}	3017	};
2091		3018
2092	warn "reloaded successfully";	3019	warn "reloaded";
2093	};	3020	};
2094		3021
2095	#############################################################################	3022	our $RELOAD_WATCHER; # used only during reload
2096		3023
2097	unless ($LINK_MAP) {	3024	sub reload_perl() {
2098	$LINK_MAP = cf::map::new;	3025	# doing reload synchronously and two reloads happen back-to-back,
		3026	# coro crashes during coro_state_free->destroy here.
2099		3027
2100	$LINK_MAP->width (41);	3028	$RELOAD_WATCHER ||= Event->timer (
2101	$LINK_MAP->height (41);	3029	reentrant => 0,
2102	$LINK_MAP->alloc;
2103	$LINK_MAP->path ("{link}");
2104	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2105	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2106
2107	# dirty hack because... archetypes are not yet loaded
2108	Event->timer (
2109	after => 2,	3030	after => 0,
		3031	data => WF_AUTOCANCEL,
2110	cb => sub {	3032	cb => sub {
2111	$_[0]->w->cancel;	3033	do_reload_perl;
2112		3034	undef $RELOAD_WATCHER;
2113	# provide some exits "home"
2114	my $exit = cf::object::new "exit";
2115
2116	$exit->slaying ($EMERGENCY_POSITION->[0]);
2117	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2118	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2119
2120	$LINK_MAP->insert ($exit->clone, 19, 19);
2121	$LINK_MAP->insert ($exit->clone, 19, 20);
2122	$LINK_MAP->insert ($exit->clone, 19, 21);
2123	$LINK_MAP->insert ($exit->clone, 20, 19);
2124	$LINK_MAP->insert ($exit->clone, 20, 21);
2125	$LINK_MAP->insert ($exit->clone, 21, 19);
2126	$LINK_MAP->insert ($exit->clone, 21, 20);
2127	$LINK_MAP->insert ($exit->clone, 21, 21);
2128
2129	$exit->destroy;
2130	});	3035	},
2131		3036	);
2132	$LINK_MAP->{deny_save} = 1;
2133	$LINK_MAP->{deny_reset} = 1;
2134
2135	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2136	}	3037	}
2137
2138	register "<global>", __PACKAGE__;
2139		3038
2140	register_command "reload" => sub {	3039	register_command "reload" => sub {
2141	my ($who, $arg) = @_;	3040	my ($who, $arg) = @_;
2142		3041
2143	if ($who->flag (FLAG_WIZ)) {	3042	if ($who->flag (FLAG_WIZ)) {
2144	$who->message ("start of reload.");
2145	reload;
2146	$who->message ("end of reload.");	3043	$who->message ("reloading server.");
		3044	async { reload_perl };
2147	}	3045	}
2148	};	3046	};
2149		3047
2150	unshift @INC, $LIBDIR;	3048	unshift @INC, $LIBDIR;
2151		3049
		3050	my $bug_warning = 0;
		3051
		3052	our @WAIT_FOR_TICK;
		3053	our @WAIT_FOR_TICK_BEGIN;
		3054
		3055	sub wait_for_tick {
		3056	return unless $TICK_WATCHER->is_active;
		3057	return if $Coro::current == $Coro::main;
		3058
		3059	my $signal = new Coro::Signal;
		3060	push @WAIT_FOR_TICK, $signal;
		3061	$signal->wait;
		3062	}
		3063
		3064	sub wait_for_tick_begin {
		3065	return unless $TICK_WATCHER->is_active;
		3066	return if $Coro::current == $Coro::main;
		3067
		3068	my $signal = new Coro::Signal;
		3069	push @WAIT_FOR_TICK_BEGIN, $signal;
		3070	$signal->wait;
		3071	}
		3072
		3073	my $min = 1e6;#d#
		3074	my $avg = 10;
2152	$TICK_WATCHER = Event->timer (	3075	$TICK_WATCHER = Event->timer (
2153	reentrant => 0,	3076	reentrant => 0,
		3077	parked => 1,
2154	prio => 0,	3078	prio => 0,
2155	at => $NEXT_TICK || $TICK,	3079	at => $NEXT_TICK || $TICK,
2156	data => WF_AUTOCANCEL,	3080	data => WF_AUTOCANCEL,
2157	cb => sub {	3081	cb => sub {
2158	unless ($FREEZE) {	3082	if ($Coro::current != $Coro::main) {
		3083	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3084	unless ++$bug_warning > 10;
		3085	return;
		3086	}
		3087
		3088	$NOW = $tick_start = Event::time;
		3089
2159	cf::server_tick; # one server iteration	3090	cf::server_tick; # one server iteration
2160	$RUNTIME += $TICK;	3091
		3092	0 && sync_job {#d#
		3093	for(1..10) {
		3094	my $t = Event::time;
		3095	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3096	or die;
		3097
		3098	$map->width (50);
		3099	$map->height (50);
		3100	$map->alloc;
		3101	$map->_load_objects ("/tmp/x.map", 1);
		3102	my $t = Event::time - $t;
		3103
		3104	#next unless $t < 0.0013;#d#
		3105	if ($t < $min) {
		3106	$min = $t;
		3107	}
		3108	$avg = $avg * 0.99 + $t * 0.01;
		3109	}
		3110	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3111	exit 0;
		3112	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2161	}	3113	};
2162		3114
		3115	$RUNTIME += $TICK;
2163	$NEXT_TICK += $TICK;	3116	$NEXT_TICK += $TICK;
2164		3117
		3118	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3119	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3120	Coro::async_pool {
		3121	write_runtime
		3122	or warn "ERROR: unable to write runtime file: $!";
		3123	};
		3124	}
		3125
		3126	# my $AFTER = Event::time;
		3127	# warn $AFTER - $NOW;#d#
		3128
		3129	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3130	$sig->send;
		3131	}
		3132	while (my $sig = shift @WAIT_FOR_TICK) {
		3133	$sig->send;
		3134	}
		3135
		3136	$NOW = Event::time;
		3137
2165	# if we are delayed by four ticks or more, skip them all	3138	# if we are delayed by four ticks or more, skip them all
2166	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3139	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2167		3140
2168	$TICK_WATCHER->at ($NEXT_TICK);	3141	$TICK_WATCHER->at ($NEXT_TICK);
2169	$TICK_WATCHER->start;	3142	$TICK_WATCHER->start;
		3143
		3144	$LOAD = ($NOW - $tick_start) / $TICK;
		3145	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3146
		3147	_post_tick;
		3148
		3149
2170	},	3150	},
2171	);	3151	);
2172		3152
		3153	{
2173	IO::AIO::max_poll_time $TICK * 0.2;	3154	BDB::max_poll_time $TICK * 0.1;
2174		3155	$BDB_POLL_WATCHER = Event->io (
2175	Event->io (	3156	reentrant => 0,
2176	fd => IO::AIO::poll_fileno,	3157	fd => BDB::poll_fileno,
2177	poll => 'r',	3158	poll => 'r',
2178	prio => 5,	3159	prio => 0,
2179	data => WF_AUTOCANCEL,
2180	cb => \&IO::AIO::poll_cb,
2181	);
2182
2183	Event->timer (
2184	data => WF_AUTOCANCEL,	3160	data => WF_AUTOCANCEL,
2185	after => 0,	3161	cb => \&BDB::poll_cb,
2186	interval => 10,	3162	);
2187	cb => sub {	3163	BDB::min_parallel 8;
2188	(Coro::unblock_sub {	3164
2189	write_runtime	3165	BDB::set_sync_prepare {
2190	or warn "ERROR: unable to write runtime file: $!";	3166	my $status;
		3167	my $current = $Coro::current;
		3168	(
		3169	sub {
		3170	$status = $!;
		3171	$current->ready; undef $current;
		3172	},
		3173	sub {
		3174	Coro::schedule while defined $current;
		3175	$! = $status;
		3176	},
		3177	)
		3178	};
		3179
		3180	unless ($DB_ENV) {
		3181	$DB_ENV = BDB::db_env_create;
		3182
		3183	cf::sync_job {
		3184	eval {
		3185	BDB::db_env_open
		3186	$DB_ENV,
		3187	$BDBDIR,
		3188	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3189	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3190	0666;
		3191
		3192	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3193
		3194	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3195	$DB_ENV->set_lk_detect;
		3196	};
		3197
		3198	cf::cleanup "db_env_open(db): $@" if $@;
2191	})->();	3199	};
2192	},	3200	}
2193	);	3201	}
		3202
		3203	{
		3204	IO::AIO::min_parallel 8;
		3205
		3206	undef $Coro::AIO::WATCHER;
		3207	IO::AIO::max_poll_time $TICK * 0.1;
		3208	$AIO_POLL_WATCHER = Event->io (
		3209	reentrant => 0,
		3210	data => WF_AUTOCANCEL,
		3211	fd => IO::AIO::poll_fileno,
		3212	poll => 'r',
		3213	prio => 6,
		3214	cb => \&IO::AIO::poll_cb,
		3215	);
		3216	}
		3217
		3218	my $_log_backtrace;
		3219
		3220	sub _log_backtrace {
		3221	my ($msg, @addr) = @_;
		3222
		3223	$msg =~ s/\n//;
		3224
		3225	# limit the # of concurrent backtraces
		3226	if ($_log_backtrace < 2) {
		3227	++$_log_backtrace;
		3228	async {
		3229	my @bt = fork_call {
		3230	@addr = map { sprintf "%x", $_ } @addr;
		3231	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3232	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3233	or die "addr2line: $!";
		3234
		3235	my @funcs;
		3236	my @res = <$fh>;
		3237	chomp for @res;
		3238	while (@res) {
		3239	my ($func, $line) = splice @res, 0, 2, ();
		3240	push @funcs, "[$func] $line";
		3241	}
		3242
		3243	@funcs
		3244	};
		3245
		3246	LOG llevInfo, "[ABT] $msg\n";
		3247	LOG llevInfo, "[ABT] $_\n" for @bt;
		3248	--$_log_backtrace;
		3249	};
		3250	} else {
		3251	LOG llevInfo, "[ABT] $msg\n";
		3252	LOG llevInfo, "[ABT] [suppressed]\n";
		3253	}
		3254	}
		3255
		3256	# load additional modules
		3257	use cf::pod;
		3258
		3259	END { cf::emergency_save }
2194		3260
2195	1	3261	1
2196		3262

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