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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 2007 UTC vs.
Revision 1.296 by root, Wed Jul 4 07:09:06 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	93
55	our %EXT_CORO;	94	# used to convert map paths into valid unix filenames by replacing / by ∕
		95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
56		100
57	binmode STDOUT;	101	binmode STDOUT;
58	binmode STDERR;	102	binmode STDERR;
59		103
60	# read virtual server time, if available	104	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
65	}	109	}
66		110
67	mkdir cf::localdir;	111	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		113
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	114	our $EMERGENCY_POSITION;
		115
		116	sub cf::map::normalise;
76		117
77	#############################################################################	118	#############################################################################
78		119
79	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
80		121
…		…
87	=item $cf::RUNTIME	128	=item $cf::RUNTIME
88		129
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	131	every server tick.
91		132
92	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		136
94	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
96		141
97	=item $cf::NOW	142	=item $cf::NOW
98		143
99	The time of the last (current) server tick.	144	The time of the last (current) server tick.
100		145
101	=item $cf::TICK	146	=item $cf::TICK
102		147
103	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
104		159
105	=item %cf::CFG	160	=item %cf::CFG
106		161
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		170
110	=back	171	=back
111		172
112	=cut	173	=cut
113		174
114	BEGIN {	175	BEGIN {
115	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	177	my $msg = join "", @_;
117	utf8::encode $msg;
118		178
119	$msg .= "\n"	179	$msg .= "\n"
120	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
121		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
123	};	186	};
124	}	187	}
125		188
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		196
133	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	198	# within the Safe compartment.
135	for my $pkg (qw(	199	for my $pkg (qw(
136	cf::global cf::attachable	200	cf::global cf::attachable
…		…
145		209
146	$Event::DIED = sub {	210	$Event::DIED = sub {
147	warn "error in event callback: @_";	211	warn "error in event callback: @_";
148	};	212	};
149		213
150	my %ext_pkg;	214	#############################################################################
151	my @exts;
152	my @hook;
153		215
154	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
155		217
156	=over 4	218	=over 4
157		219
158	=cut	220	=item dumpval $ref
159		221
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
161		242
162	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
163		244
164	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
165		246
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
174		248
175	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
176		250
177	=cut	251	=cut
178		252
179	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		254
184	=item my $guard = cf::guard { BLOCK }	255	sub to_json ($) { $json_coder->encode ($_[0]) }
185		256	sub from_json ($) { $json_coder->decode ($_[0]) }
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205		257
206	=item cf::lock_wait $string	258	=item cf::lock_wait $string
207		259
208	Wait until the given lock is available. See cf::lock_acquire.	260	Wait until the given lock is available. See cf::lock_acquire.
209		261
210	=item my $lock = cf::lock_acquire $string	262	=item my $lock = cf::lock_acquire $string
211		263
212	Wait until the given lock is available and then acquires it and returns	264	Wait until the given lock is available and then acquires it and returns
213	a guard object. If the guard object gets destroyed (goes out of scope,	265	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
214	for example when the coroutine gets canceled), the lock is automatically	266	for example when the coroutine gets canceled), the lock is automatically
215	returned.	267	returned.
216		268
217	Lock names should begin with a unique identifier (for example, cf::map::find	269	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
219		275
220	=cut	276	=cut
221		277
222	our %LOCK;	278	our %LOCK;
223		279
…		…
237	# wait, to be sure we are not locked	293	# wait, to be sure we are not locked
238	lock_wait $key;	294	lock_wait $key;
239		295
240	$LOCK{$key} = [];	296	$LOCK{$key} = [];
241		297
242	cf::guard {	298	Coro::guard {
243	# wake up all waiters, to be on the safe side	299	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	300	$_->ready for @{ delete $LOCK{$key} };
245	}	301	}
246	}	302	}
247		303
248	=item cf::async { BLOCK }	304	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	305	my ($key) = @_;
257		306
258	Coro::async {	307	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	308	}
263		309
264	sub freeze_mainloop {	310	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	311	return unless $TICK_WATCHER->is_active;
266		312
267	my $guard = guard { $TICK_WATCHER->start };	313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
268	$TICK_WATCHER->stop;	316	$TICK_WATCHER->stop;
269	$guard	317	$guard
270	}	318	}
271		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
		329
272	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
273		331
274	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
275	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
276	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
277		336
278	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
279	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
280	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
281	fast or be very important.	340	fast or be very important.
…		…
284		343
285	sub sync_job(&) {	344	sub sync_job(&) {
286	my ($job) = @_;	345	my ($job) = @_;
287		346
288	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
289	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
291		352
292	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	354	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	355	my $freeze_guard = freeze_mainloop;
295		356
296	my $busy = 1;	357	my $busy = 1;
297	my @res;	358	my @res;
298		359
299	(Coro::async {	360	(async {
300	@res = eval { $job->() };	361	@res = eval { $job->() };
301	warn $@ if $@;	362	warn $@ if $@;
302	undef $busy;	363	undef $busy;
303	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
304		365
305	while ($busy) {	366	while ($busy) {
306	Coro::cede_notself;	367	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	368	}
		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
309		376
310	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
311	} else {	378	} else {
312	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
313		380
314	$job->()	381	$job->()
315	}	382	}
316	}	383	}
317		384
318	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
319		386
320	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
322		389
323	=cut	390	=cut
324		391
325	sub coro(&) {	392	sub async_ext(&) {
326	my $cb = shift;	393	my $cb = shift;
327		394
328	my $coro = &cf::async ($cb);	395	my $coro = &Coro::async ($cb);
329		396
330	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
332	});	399	});
333	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
334		401
335	$coro	402	$coro
336	}	403	}
337		404
338	sub write_runtime {	405	=item fork_call { }, $args
339	my $runtime = cf::localdir . "/runtime";
340		406
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
342	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
343		411
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;
347		413
348	aio_fsync $fh	414	sub fork_call(&@) {
349	and return;	415	my ($cb, @args) = @_;
350		416
		417	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		418	# or die "socketpair: $!";
		419	pipe my $fh1, my $fh2
		420	or die "pipe: $!";
		421
		422	if (my $pid = fork) {
351	close $fh	423	close $fh2;
352	or return;
353		424
354	aio_rename "$runtime~", $runtime	425	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
355	and return;	426	$res = Coro::Storable::thaw $res;
356		427
		428	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		429
		430	die $$res unless "ARRAY" eq ref $res;
		431
		432	return wantarray ? @$res : $res->[-1];
		433	} else {
		434	reset_signals;
		435	local $SIG{__WARN__};
		436	local $SIG{__DIE__};
		437	eval {
		438	close $fh1;
		439
		440	my @res = eval { $cb->(@args) };
		441	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		442	};
		443
		444	warn $@ if $@;
		445	_exit 0;
357	1	446	}
		447	}
		448
		449	=item $value = cf::db_get $family => $key
		450
		451	Returns a single value from the environment database.
		452
		453	=item cf::db_put $family => $key => $value
		454
		455	Stores the given C<$value> in the family. It can currently store binary
		456	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		457
		458	=cut
		459
		460	our $DB;
		461
		462	sub db_init {
		463	unless ($DB) {
		464	$DB = BDB::db_create $DB_ENV;
		465
		466	cf::sync_job {
		467	eval {
		468	$DB->set_flags (BDB::CHKSUM);
		469
		470	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		471	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		472	cf::cleanup "db_open(db): $!" if $!;
		473	};
		474	cf::cleanup "db_open(db): $@" if $@;
		475	};
		476	}
		477	}
		478
		479	sub db_get($$) {
		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 });
358	}	574	}
359		575
360	=back	576	=back
361		577
362	=cut	578	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		579
484	#############################################################################	580	#############################################################################
485		581
486	=head2 ATTACHABLE OBJECTS	582	=head2 ATTACHABLE OBJECTS
487		583
…		…
489	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")
490	to it. All such attachable objects support the following methods.	586	to it. All such attachable objects support the following methods.
491		587
492	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>
493	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
494	crossfire+).	590	Crossfire TRT).
495		591
496	=over 4	592	=over 4
497		593
498	=item $attachable->attach ($attachment, key => $value...)	594	=item $attachable->attach ($attachment, key => $value...)
499		595
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	709	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	710	our @CB_MAP = ();
615		711
616	my %attachment;	712	my %attachment;
617		713
		714	sub cf::attachable::thawer_merge {
		715	# simply override everything except _meta
		716	local $_[0]{_meta};
		717	%{$_[0]} = %{$_[1]};
		718	}
		719
618	sub _attach_cb($$$$) {	720	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	721	my ($registry, $event, $prio, $cb) = @_;
620		722
621	use sort 'stable';	723	use sort 'stable';
622		724
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	758	$registry = $CB_TYPE[$object_type] ||= [];
657		759
658	} elsif ($type eq "subtype") {	760	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	761	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	762	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	763	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		764
663	} elsif ($type eq "package") {	765	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	766	my $pkg = shift @arg;
665		767
666	while (my ($name, $id) = each %cb_id) {	768	while (my ($name, $id) = each %cb_id) {
…		…
695	_attach $registry, $klass, @attach;	797	_attach $registry, $klass, @attach;
696	}	798	}
697		799
698	$obj->{$name} = \%arg;	800	$obj->{$name} = \%arg;
699	} else {	801	} else {
700	warn "object uses attachment '$name' that is not available, postponing.\n";	802	warn "object uses attachment '$name' which is not available, postponing.\n";
701	}	803	}
702		804
703	$obj->{_attachment}{$name} = undef;	805	$obj->{_attachment}{$name} = undef;
704	}	806	}
705		807
…		…
707	if (ref $_[0]) {	809	if (ref $_[0]) {
708	_object_attach @_;	810	_object_attach @_;
709	} else {	811	} else {
710	_attach shift->_attach_registry, @_;	812	_attach shift->_attach_registry, @_;
711	}	813	}
		814	_recalc_want;
712	};	815	};
713		816
714	# all those should be optimised	817	# all those should be optimised
715	sub cf::attachable::detach {	818	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	819	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	822	delete $obj->{_attachment}{$name};
720	reattach ($obj);	823	reattach ($obj);
721	} else {	824	} else {
722	Carp::croak "cannot, currently, detach class attachments";	825	Carp::croak "cannot, currently, detach class attachments";
723	}	826	}
		827	_recalc_want;
724	};	828	};
725		829
726	sub cf::attachable::attached {	830	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	831	my ($obj, $name) = @_;
728		832
…		…
793	# object support	897	# object support
794		898
795	sub reattach {	899	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	900	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	901	my ($obj) = @_;
		902
		903	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		904
799	my $registry = $obj->registry;	905	my $registry = $obj->registry;
800		906
801	@$registry = ();	907	@$registry = ();
802		908
…		…
849	$filename, length $$rdata, scalar @$objs;	955	$filename, length $$rdata, scalar @$objs;
850		956
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	957	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	958	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	959	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	960	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	961	close $fh;
856		962
857	if (@$objs) {	963	if (@$objs) {
858	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) {
859	chmod SAVE_MODE, $fh;	965	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	966	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	967	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	968	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	969	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	970	aio_rename "$filename.pst~", "$filename.pst";
865	}	971	}
866	} else {	972	} else {
867	aio_unlink "$filename.pst";	973	aio_unlink "$filename.pst";
…		…
899	or return;	1005	or return;
900	$av = eval { (Storable::thaw $av)->{objs} };	1006	$av = eval { (Storable::thaw $av)->{objs} };
901	}	1007	}
902		1008
903	warn sprintf "loading %s (%d)\n",	1009	warn sprintf "loading %s (%d)\n",
904	$filename, length $data, scalar @{$av || []};#d#	1010	$filename, length $data, scalar @{$av || []};
905	return ($data, $av);	1011	return ($data, $av);
906	}	1012	}
		1013
		1014	=head2 COMMAND CALLBACKS
		1015
		1016	=over 4
		1017
		1018	=cut
907		1019
908	#############################################################################	1020	#############################################################################
909	# command handling &c	1021	# command handling &c
910		1022
911	=item cf::register_command $name => \&callback($ob,$args);	1023	=item cf::register_command $name => \&callback($ob,$args);
…		…
924	push @{ $COMMAND{$name} }, [$caller, $cb];	1036	push @{ $COMMAND{$name} }, [$caller, $cb];
925	}	1037	}
926		1038
927	=item cf::register_extcmd $name => \&callback($pl,$packet);	1039	=item cf::register_extcmd $name => \&callback($pl,$packet);
928		1040
929	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.
930		1046
931	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
932	called.	1048	called.
933		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
934	=cut	1061	=cut
935		1062
936	sub register_extcmd {	1063	sub register_extcmd {
937	my ($name, $cb) = @_;	1064	my ($name, $cb) = @_;
938		1065
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	1066	$EXTCMD{$name} = $cb;
		1067	}
		1068
		1069	sub register_exticmd {
		1070	my ($name, $cb) = @_;
		1071
		1072	$EXTICMD{$name} = $cb;
943	}	1073	}
944		1074
945	cf::player->attach (	1075	cf::player->attach (
946	on_command => sub {	1076	on_command => sub {
947	my ($pl, $name, $params) = @_;	1077	my ($pl, $name, $params) = @_;
…		…
956	cf::override;	1086	cf::override;
957	},	1087	},
958	on_extcmd => sub {	1088	on_extcmd => sub {
959	my ($pl, $buf) = @_;	1089	my ($pl, $buf) = @_;
960		1090
961	my $msg = eval { from_json $buf };	1091	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
962		1092
963	if (ref $msg) {	1093	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1094	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	1095	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	1096	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	1097	}
968	}	1098	}
969	} else {	1099	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1100	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		1102
973	cf::override;	1103	cf::override;
974	},	1104	},
975	);	1105	);
976		1106
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	1107	sub load_extensions {
		1108	cf::sync_job {
		1109	my %todo;
		1110
		1111	for my $path (<$LIBDIR/*.ext>) {
		1112	next unless -r $path;
		1113
		1114	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1115	my $base = $1;
		1116	my $pkg = $1;
		1117	$pkg =~ s/[^[:word:]]/_/g;
		1118	$pkg = "ext::$pkg";
		1119
		1120	open my $fh, "<:utf8", $path
		1121	or die "$path: $!";
		1122
		1123	my $source = do { local $/; <$fh> };
		1124
		1125	my %ext = (
		1126	path => $path,
		1127	base => $base,
		1128	pkg => $pkg,
		1129	);
		1130
		1131	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1132	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1133
		1134	$ext{source} =
		1135	"package $pkg; use strict; use utf8;\n"
		1136	. "#line 1 \"$path\"\n{\n"
		1137	. $source
		1138	. "\n};\n1";
		1139
		1140	$todo{$base} = \%ext;
		1141	}
		1142
		1143	my %done;
		1144	while (%todo) {
		1145	my $progress;
		1146
		1147	while (my ($k, $v) = each %todo) {
		1148	for (split /,\s*/, $v->{meta}{depends}) {
		1149	goto skip
		1150	unless exists $done{$_};
		1151	}
		1152
		1153	warn "... loading '$k' into '$v->{pkg}'\n";
		1154
		1155	unless (eval $v->{source}) {
		1156	my $msg = $@ ? "$v->{path}: $@\n"
		1157	: "$v->{base}: extension inactive.\n";
		1158
		1159	if (exists $v->{meta}{mandatory}) {
		1160	warn $msg;
		1161	warn "mandatory extension failed to load, exiting.\n";
		1162	exit 1;
		1163	}
		1164
		1165	warn $msg;
		1166	}
		1167
		1168	$done{$k} = delete $todo{$k};
		1169	push @EXTS, $v->{pkg};
		1170	$progress = 1;
		1171	}
		1172
		1173	skip:
		1174	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1175	unless $progress;
		1176	}
		1177	};
		1178	}
		1179
		1180	#############################################################################
		1181
		1182	=back
		1183
		1184	=head2 CORE EXTENSIONS
		1185
		1186	Functions and methods that extend core crossfire objects.
		1187
		1188	=cut
		1189
		1190	package cf::player;
		1191
		1192	use Coro::AIO;
		1193
		1194	=head3 cf::player
		1195
		1196	=over 4
		1197
		1198	=item cf::player::find $login
		1199
		1200	Returns the given player object, loading it if necessary (might block).
		1201
		1202	=cut
		1203
		1204	sub playerdir($) {
		1205	"$PLAYERDIR/"
		1206	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1207	}
		1208
		1209	sub path($) {
		1210	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1211
		1212	(playerdir $login) . "/playerdata"
		1213	}
		1214
		1215	sub find_active($) {
		1216	$cf::PLAYER{$_[0]}
		1217	and $cf::PLAYER{$_[0]}->active
		1218	and $cf::PLAYER{$_[0]}
		1219	}
		1220
		1221	sub exists($) {
		1222	my ($login) = @_;
		1223
		1224	$cf::PLAYER{$login}
		1225	or cf::sync_job { !aio_stat path $login }
		1226	}
		1227
		1228	sub find($) {
		1229	return $cf::PLAYER{$_[0]} || do {
		1230	my $login = $_[0];
		1231
		1232	my $guard = cf::lock_acquire "user_find:$login";
		1233
		1234	$cf::PLAYER{$_[0]} || do {
		1235	# rename old playerfiles to new ones
		1236	#TODO: remove when no longer required
		1237	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1238	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1239	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1240	aio_unlink +(playerdir $login) . "/$login.pl";
		1241
		1242	my $pl = load_pl path $login
		1243	or return;
		1244	$cf::PLAYER{$login} = $pl
		1245	}
		1246	}
		1247	}
		1248
		1249	sub save($) {
		1250	my ($pl) = @_;
		1251
		1252	return if $pl->{deny_save};
		1253
		1254	my $path = path $pl;
		1255	my $guard = cf::lock_acquire "user_save:$path";
		1256
		1257	return if $pl->{deny_save};
		1258
		1259	aio_mkdir playerdir $pl, 0770;
		1260	$pl->{last_save} = $cf::RUNTIME;
		1261
		1262	$pl->save_pl ($path);
		1263	Coro::cede;
		1264	}
		1265
		1266	sub new($) {
		1267	my ($login) = @_;
		1268
		1269	my $self = create;
		1270
		1271	$self->ob->name ($login);
		1272	$self->{deny_save} = 1;
		1273
		1274	$cf::PLAYER{$login} = $self;
		1275
		1276	$self
		1277	}
		1278
		1279	=item $pl->quit_character
		1280
		1281	Nukes the player without looking back. If logged in, the connection will
		1282	be destroyed. May block for a long time.
		1283
		1284	=cut
		1285
		1286	sub quit_character {
		1287	my ($pl) = @_;
		1288
		1289	my $name = $pl->ob->name;
		1290
		1291	$pl->{deny_save} = 1;
		1292	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1293
		1294	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1295	$pl->deactivate;
		1296	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1297	$pl->ns->destroy if $pl->ns;
		1298
		1299	my $path = playerdir $pl;
		1300	my $temp = "$path~$cf::RUNTIME~deleting~";
		1301	aio_rename $path, $temp;
		1302	delete $cf::PLAYER{$pl->ob->name};
		1303	$pl->destroy;
		1304
		1305	my $prefix = qr<^~\Q$name\E/>;
		1306
		1307	# nuke player maps
		1308	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1309
		1310	IO::AIO::aio_rmtree $temp;
		1311	}
		1312
		1313	=item $pl->kick
		1314
		1315	Kicks a player out of the game. This destroys the connection.
		1316
		1317	=cut
		1318
		1319	sub kick {
		1320	my ($pl, $kicker) = @_;
		1321
		1322	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1323	$pl->killer ("kicked");
		1324	$pl->ns->destroy;
		1325	}
		1326
		1327	=item cf::player::list_logins
		1328
		1329	Returns am arrayref of all valid playernames in the system, can take a
		1330	while and may block, so not sync_job-capable, ever.
		1331
		1332	=cut
		1333
		1334	sub list_logins {
		1335	my $dirs = aio_readdir $PLAYERDIR
		1336	or return [];
		1337
		1338	my @logins;
		1339
		1340	for my $login (@$dirs) {
		1341	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1342	aio_read $fh, 0, 512, my $buf, 0 or next;
		1343	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1344
		1345	utf8::decode $login;
		1346	push @logins, $login;
		1347	}
		1348
		1349	\@logins
		1350	}
		1351
		1352	=item $player->maps
		1353
		1354	Returns an arrayref of map paths that are private for this
		1355	player. May block.
		1356
		1357	=cut
		1358
		1359	sub maps($) {
		1360	my ($pl) = @_;
		1361
		1362	$pl = ref $pl ? $pl->ob->name : $pl;
		1363
		1364	my $files = aio_readdir playerdir $pl
		1365	or return;
		1366
		1367	my @paths;
		1368
		1369	for (@$files) {
		1370	utf8::decode $_;
		1371	next if /\.(?:pl|pst)$/;
		1372	next unless /^$PATH_SEP/o;
		1373
		1374	push @paths, cf::map::normalise "~$pl/$_";
		1375	}
		1376
		1377	\@paths
		1378	}
		1379
		1380	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1381
		1382	Expand crossfire pod fragments into protocol xml.
		1383
		1384	=cut
		1385
		1386	sub expand_cfpod {
		1387	((my $self), (local $_)) = @_;
		1388
		1389	# escape & and <
		1390	s/&/&amp;/g;
		1391	s/(?<![BIUGH])</&lt;/g;
		1392
		1393	# this is buggy, it needs to properly take care of nested <'s
		1394
		1395	1 while
		1396	# replace B<>, I<>, U<> etc.
		1397	s/B<([^\>]*)>/<b>$1<\/b>/
		1398	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1399	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1400	# replace G<male|female> tags
		1401	|| s{G<([^>|]*)\|([^>]*)>}{
		1402	$self->gender ? $2 : $1
		1403	}ge
		1404	# replace H<hint text>
		1405	|| s{H<([^\>]*)>}
		1406	{
		1407	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1408	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1409	"")
		1410	[$self->{hintmode}]
		1411	}ge;
		1412
		1413	# create single paragraphs (very hackish)
		1414	s/(?<=\S)\n(?=\w)/ /g;
		1415
		1416	# compress some whitespace
		1417	s/\s+\n/\n/g; # ws line-ends
		1418	s/\n\n+/\n/g; # double lines
		1419	s/^\n+//; # beginning lines
		1420	s/\n+$//; # ending lines
		1421
		1422	$_
		1423	}
		1424
		1425	sub hintmode {
		1426	$_[0]{hintmode} = $_[1] if @_ > 1;
		1427	$_[0]{hintmode}
		1428	}
		1429
		1430	=item $player->ext_reply ($msgid, %msg)
		1431
		1432	Sends an ext reply to the player.
		1433
		1434	=cut
		1435
		1436	sub ext_reply($$%) {
		1437	my ($self, $id, %msg) = @_;
		1438
		1439	$msg{msgid} = $id;
		1440	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1441	}
		1442
		1443	=item $player->ext_event ($type, %msg)
		1444
		1445	Sends an ext event to the client.
		1446
		1447	=cut
		1448
		1449	sub ext_event($$%) {
		1450	my ($self, $type, %msg) = @_;
		1451
		1452	$self->ns->ext_event ($type, %msg);
		1453	}
		1454
		1455	=head3 cf::region
		1456
		1457	=over 4
		1458
		1459	=cut
		1460
		1461	package cf::region;
		1462
		1463	=item cf::region::find_by_path $path
		1464
		1465	Tries to decuce the likely region for a map knowing only its path.
		1466
		1467	=cut
		1468
		1469	sub find_by_path($) {
984	my ($path) = @_;	1470	my ($path) = @_;
985		1471
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1472	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1473
992	warn "loading '$path' into '$pkg'\n";	1474	for my $region (list) {
993		1475	if ($region->match && $path =~ $region->match) {
994	open my $fh, "<:utf8", $path	1476	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1477	if $region->specificity > $specificity;
996		1478	}
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @exts, $pkg;
1008	$ext_pkg{$base} = $pkg;
1009
1010	# no strict 'refs';
1011	# @{"$pkg\::ISA"} = ext::;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	1479	}
1026		1480
1027	# remove commands	1481	$match
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}
1052
1053	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;
1056	eval {
1057	load_extension $ext;
1058	1
1059	} or warn "$ext not loaded: $@";
1060	}
1061	}
1062
1063	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100
1101	=head2 CORE EXTENSIONS
1102
1103	Functions and methods that extend core crossfire objects.
1104
1105	=head3 cf::player
1106
1107	=over 4
1108
1109	=item cf::player::exists $login
1110
1111	Returns true when the given account exists.
1112
1113	=cut
1114
1115	sub cf::player::exists($) {
1116	cf::player::find $_[0]
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1118	}
1119
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)
1121
1122	Sends an ext reply to the player.
1123
1124	=cut
1125
1126	sub cf::player::ext_reply($$$%) {
1127	my ($self, $id, %msg) = @_;
1128
1129	$msg{msgid} = $id;
1130
1131	$self->send ("ext " . to_json \%msg);
1132	}	1482	}
1133		1483
1134	=back	1484	=back
1135
1136		1485
1137	=head3 cf::map	1486	=head3 cf::map
1138		1487
1139	=over 4	1488	=over 4
1140		1489
…		…
1143	package cf::map;	1492	package cf::map;
1144		1493
1145	use Fcntl;	1494	use Fcntl;
1146	use Coro::AIO;	1495	use Coro::AIO;
1147		1496
		1497	use overload
		1498	'""' => \&as_string,
		1499	fallback => 1;
		1500
1148	our $MAX_RESET = 3600;	1501	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1502	our $DEFAULT_RESET = 3000;
1150		1503
1151	sub generate_random_map {	1504	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1505	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1506	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1507	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1508	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1509	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1510	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1511	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1512	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1513	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1514	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1515	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$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},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1517	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(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"
1168	}	1647	}
1169		1648
1170	# and all this just because we cannot iterate over	1649	# and all this just because we cannot iterate over
1171	# all maps in C++...	1650	# all maps in C++...
1172	sub change_all_map_light {	1651	sub change_all_map_light {
…		…
1174		1653
1175	$_->change_map_light ($change)	1654	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1655	for grep $_->outdoor, values %cf::MAP;
1177	}	1656	}
1178		1657
		1658	sub decay_objects {
		1659	my ($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
1179	sub try_load_header($) {	1674	sub load_header_from($) {
1180	my ($path) = @_;	1675	my ($self, $path) = @_;
1181		1676
1182	utf8::encode $path;	1677	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1678	#aio_open $path, O_RDONLY, 0
		1679	# or return;
		1680
		1681	$self->_load_header ($path)
1184	or return;	1682	or return;
1185		1683
1186	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
1187	or return;	1727	or return;
		1728	$self->prepare_orig;
		1729	}
1188		1730
1189	$map->load_header ($path)	1731	$self->{deny_reset} = 1
1190	or return;	1732	if $self->no_reset;
1191		1733
1192	$map->{load_path} = $path;	1734	$self->default_region (cf::region::find_by_path $self->{path})
		1735	unless $self->default_region;
1193		1736
1194	$map	1737	1
1195	}	1738	}
1196		1739
1197	sub find;	1740	sub find;
1198	sub find {	1741	sub find {
1199	my ($path, $origin) = @_;	1742	my ($path, $origin) = @_;
1200		1743
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1744	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1745
1206	cf::lock_wait "map_find:$key";	1746	cf::lock_wait "map_find:$path";
1207		1747
1208	$cf::MAP{$key} || do {	1748	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1749	my $guard = cf::lock_acquire "map_find:$path";
1210		1750	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	1751	or return;
1230		1752
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	1753	$map->{last_save} = $cf::RUNTIME;
1243		1754
1244	Coro::cede;	1755	$map->load_header
		1756	or return;
1245		1757
1246	if ($map->should_reset) {	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;
1247	$map->reset;	1761	$map->reset;
1248	undef $guard;	1762	undef $guard;
1249	$map = find $path	1763	return find $path;
1250	or return;
1251	}	1764	}
1252		1765
1253	$cf::MAP{$key} = $map	1766	$cf::MAP{$path} = $map
1254	}	1767	}
1255	}	1768	}
		1769
		1770	sub pre_load { }
		1771	sub post_load { }
1256		1772
1257	sub load {	1773	sub load {
1258	my ($self) = @_;	1774	my ($self) = @_;
1259		1775
		1776	local $self->{deny_reset} = 1; # loading can take a long time
		1777
1260	my $path = $self->{path};	1778	my $path = $self->{path};
		1779
		1780	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1781	my $guard = cf::lock_acquire "map_load:$path";
1262		1782
1263	return if $self->in_memory != cf::MAP_SWAPPED;	1783	return if $self->in_memory != cf::MAP_SWAPPED;
1264		1784
1265	$self->in_memory (cf::MAP_LOADING);	1785	$self->in_memory (cf::MAP_LOADING);
1266		1786
1267	$self->alloc;	1787	$self->alloc;
		1788
		1789	$self->pre_load;
		1790	Coro::cede;
		1791
1268	$self->load_objects ($self->{load_path}, 1)	1792	$self->_load_objects ($self->{load_path}, 1)
1269	or return;	1793	or return;
1270		1794
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1795	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272	if delete $self->{load_original};	1796	if delete $self->{load_original};
1273		1797
1274	if (my $uniq = $path->uniq_path) {	1798	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	1799	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	1800	if (aio_open $uniq, O_RDONLY, 0) {
1277	$self->clear_unique_items;	1801	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	1802	$self->_load_objects ($uniq, 0);
1279	}	1803	}
1280	}	1804	}
1281		1805
1282	Coro::cede;	1806	Coro::cede;
1283
1284	# now do the right thing for maps	1807	# now do the right thing for maps
1285	$self->link_multipart_objects;	1808	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	1809	$self->difficulty ($self->estimate_difficulty)
1296	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;
1297	$self->activate;	1820	$self->activate;
1298	}	1821	}
1299		1822
1300	Coro::cede;
1301
1302	$self->in_memory (cf::MAP_IN_MEMORY);	1823	$self->in_memory (cf::MAP_IN_MEMORY);
		1824	}
		1825
		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	$neigh->load;
		1862	}
1303	}	1863	}
1304		1864
1305	sub find_sync {	1865	sub find_sync {
1306	my ($path, $origin) = @_;	1866	my ($path, $origin) = @_;
1307		1867
1308	cf::sync_job { cf::map::find $path, $origin }	1868	cf::sync_job { find $path, $origin }
1309	}	1869	}
1310		1870
1311	sub do_load_sync {	1871	sub do_load_sync {
1312	my ($map) = @_;	1872	my ($map) = @_;
1313		1873
1314	cf::sync_job { $map->load };	1874	cf::sync_job { $map->load };
1315	}	1875	}
1316		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;
		1895	$map->load;
		1896
		1897	delete $MAP_PREFETCH{$path};
		1898	}
		1899	}
		1900	undef $MAP_PREFETCHER;
		1901	};
		1902	$MAP_PREFETCHER->prio (6);
		1903
		1904	()
		1905	}
		1906
1317	sub save {	1907	sub save {
1318	my ($self) = @_;	1908	my ($self) = @_;
1319		1909
		1910	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1911
1320	$self->{last_save} = $cf::RUNTIME;	1912	$self->{last_save} = $cf::RUNTIME;
1321		1913
1322	return unless $self->dirty;	1914	return unless $self->dirty;
1323		1915
1324	my $save = $self->{path}->save_path; utf8::encode $save;	1916	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1917	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		1918
1327	$self->{load_path} = $save;	1919	$self->{load_path} = $save;
1328		1920
1329	return if $self->{deny_save};	1921	return if $self->{deny_save};
1330		1922
1331	local $self->{last_access} = $self->last_access;#d#	1923	local $self->{last_access} = $self->last_access;#d#
1332		1924
		1925	cf::async {
		1926	$_->contr->save for $self->players;
		1927	};
		1928
1333	if ($uniq) {	1929	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1930	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	1931	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	1932	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1933	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}	1934	}
1339	}	1935	}
1340		1936
1341	sub swap_out {	1937	sub swap_out {
1342	my ($self) = @_;	1938	my ($self) = @_;
1343		1939
1344	# save first because save cedes	1940	# save first because save cedes
1345	$self->save;	1941	$self->save;
		1942
		1943	my $lock = cf::lock_acquire "map_data:" . $self->path;
1346		1944
1347	return if $self->players;	1945	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	1946	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};	1947	return if $self->{deny_save};
1350		1948
…		…
1354		1952
1355	sub reset_at {	1953	sub reset_at {
1356	my ($self) = @_;	1954	my ($self) = @_;
1357		1955
1358	# TODO: safety, remove and allow resettable per-player maps	1956	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};
1360	return 1e99 if $self->{deny_reset};	1957	return 1e99 if $self->{deny_reset};
1361		1958
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1959	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1960	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		1961
…		…
1369	my ($self) = @_;	1966	my ($self) = @_;
1370		1967
1371	$self->reset_at <= $cf::RUNTIME	1968	$self->reset_at <= $cf::RUNTIME
1372	}	1969	}
1373		1970
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	1971	sub reset {
1396	my ($self) = @_;	1972	my ($self) = @_;
1397		1973
		1974	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1975
1398	return if $self->players;	1976	return if $self->players;
1399	return if $self->{path}{user_rel};#d#
1400		1977
1401	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	}
1402		1989
1403	delete $cf::MAP{$self->path};	1990	delete $cf::MAP{$self->path};
		1991
		1992	$self->clear;
1404		1993
1405	$_->clear_links_to ($self) for values %cf::MAP;	1994	$_->clear_links_to ($self) for values %cf::MAP;
1406		1995
1407	$self->unlink_save;	1996	$self->unlink_save;
1408	$self->destroy;	1997	$self->destroy;
…		…
1411	my $nuke_counter = "aaaa";	2000	my $nuke_counter = "aaaa";
1412		2001
1413	sub nuke {	2002	sub nuke {
1414	my ($self) = @_;	2003	my ($self) = @_;
1415		2004
		2005	delete $cf::MAP{$self->path};
		2006
		2007	$self->unlink_save;
		2008
		2009	bless $self, "cf::map";
		2010	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	2011	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	2012	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	2013	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2014
		2015	$cf::MAP{$self->path} = $self;
		2016
1419	$self->reset; # polite request, might not happen	2017	$self->reset; # polite request, might not happen
1420	}	2018	}
1421		2019
1422	sub customise_for {	2020	=item $maps = cf::map::tmp_maps
1423	my ($map, $ob) = @_;
1424		2021
1425	if ($map->per_player) {	2022	Returns an arrayref with all map paths of currently instantiated and saved
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2023	maps. May block.
		2024
		2025	=cut
		2026
		2027	sub tmp_maps() {
1427	}	2028	[
1428		2029	map {
1429	$map	2030	utf8::decode $_;
		2031	/\.map$/
		2032	? normalise $_
		2033	: ()
		2034	} @{ aio_readdir $TMPDIR or [] }
		2035	]
1430	}	2036	}
1431		2037
1432	sub emergency_save {	2038	=item $maps = cf::map::random_maps
1433	my $freeze_guard = cf::freeze_mainloop;
1434		2039
1435	warn "enter emergency map save\n";	2040	Returns an arrayref with all map paths of currently instantiated and saved
		2041	random maps. May block.
1436		2042
1437	cf::sync_job {	2043	=cut
1438	warn "begin emergency map save\n";
1439	$_->save for values %cf::MAP;
1440	};
1441		2044
1442	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	]
1443	}	2072	}
1444		2073
1445	package cf;	2074	package cf;
1446		2075
1447	=back	2076	=back
1448		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
1449		2104
1450	=head3 cf::object::player	2105	=head3 cf::object::player
1451		2106
1452	=over 4	2107	=over 4
1453		2108
…		…
1467		2122
1468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2123	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1469		2124
1470	if ($self->{record_replies}) {	2125	if ($self->{record_replies}) {
1471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2126	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2127
1472	} 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 {
1473	$msg = $npc->name . " says: $msg" if $npc;	2141	$msg = $npc->name . " says: $msg" if $npc;
1474	$self->message ($msg, $flags);	2142	$self->message ($msg, $flags);
		2143	}
1475	}	2144	}
1476	}	2145	}
1477		2146
1478	=item $player_object->may ("access")	2147	=item $player_object->may ("access")
1479		2148
…		…
1493		2162
1494	=item $player_object->enter_link	2163	=item $player_object->enter_link
1495		2164
1496	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}>).
1497		2166
1498	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
1499	I<MUST> call C<leave_link> as soon as possible, though.	2168	I<MUST> call C<leave_link> as soon as possible, though.
1500		2169
		2170	Will never block.
		2171
1501	=item $player_object->leave_link ($map, $x, $y)	2172	=item $player_object->leave_link ($map, $x, $y)
1502		2173
1503	Moves the player out of the specila link map onto the given map. If the	2174	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	2175	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	2176	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	2177	fails, to the emergency map position.
1507		2178
1508	Might block.	2179	Might block.
1509		2180
1510	=cut	2181	=cut
		2182
		2183	sub link_map {
		2184	unless ($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	$LINK_MAP
		2191	}
1511		2192
1512	sub cf::object::player::enter_link {	2193	sub cf::object::player::enter_link {
1513	my ($self) = @_;	2194	my ($self) = @_;
1514		2195
1515	$self->deactivate_recursive;	2196	$self->deactivate_recursive;
1516		2197
1517	return if $self->map == $LINK_MAP;	2198	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		2199
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2200	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	2201	if $self->map && $self->map->{path} ne "{link}";
1521		2202
1522	$self->enter_map ($LINK_MAP, 20, 20);	2203	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	2204	}
1524		2205
1525	sub cf::object::player::leave_link {	2206	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	2207	my ($self, $map, $x, $y) = @_;
		2208
		2209	return unless $self->contr->active;
1527		2210
1528	my $link_pos = delete $self->{_link_pos};	2211	my $link_pos = delete $self->{_link_pos};
1529		2212
1530	unless ($map) {	2213	unless ($map) {
1531	# restore original map position	2214	# restore original map position
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	2228	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	2229	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	2230	if $x <=0 && $y <= 0;
1548		2231
1549	$map->load;	2232	$map->load;
		2233	$map->load_diag;
1550		2234
		2235	return unless $self->contr->active;
1551	$self->activate_recursive;	2236	$self->activate_recursive;
		2237
		2238	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552	$self->enter_map ($map, $x, $y);	2239	$self->enter_map ($map, $x, $y);
1553	}	2240	}
1554		2241
1555	cf::player->attach (
1556	on_logout => sub {
1557	my ($pl) = @_;
1558
1559	# abort map switching before logout
1560	if ($pl->ob->{_link_pos}) {
1561	cf::sync_job {
1562	$pl->ob->leave_link
1563	};
1564	}
1565	},
1566	on_login => sub {
1567	my ($pl) = @_;
1568
1569	# try to abort aborted map switching on player login :)
1570	# should happen only on crashes
1571	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;
1573	cf::async {
1574	# we need this sleep as the login has a concurrent enter_exit running
1575	# and this sleep increases chances of the player not ending up in scorn
1576	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;
1578	};
1579	}
1580	},
1581	);
1582
1583	=item $player_object->goto_map ($path, $x, $y)	2242	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1584		2243
1585	=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.
1586		2248
		2249	=cut
		2250
		2251	our $GOTOGEN;
		2252
1587	sub cf::object::player::goto_map {	2253	sub cf::object::player::goto {
1588	my ($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;
1589		2258
1590	$self->enter_link;	2259	$self->enter_link;
1591		2260
1592	(cf::async {	2261	(async {
1593	$path = new cf::path $path;	2262	my $map = eval {
1594
1595	my $map = cf::map::find $path->as_string;	2263	my $map = cf::map::find $path;
		2264
		2265	if ($map) {
1596	$map = $map->customise_for ($self) if $map;	2266	$map = $map->customise_for ($self);
1597		2267	$map = $check->($map) if $check && $map;
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	2268	} else {
1599	# if $map;
1600
1601	$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	}
1602		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};
1603	$self->leave_link ($map, $x, $y);	2282	$self->leave_link ($map, $x, $y);
		2283	}
1604	})->prio (1);	2284	})->prio (1);
1605	}	2285	}
1606		2286
1607	=item $player_object->enter_exit ($exit_object)	2287	=item $player_object->enter_exit ($exit_object)
1608		2288
…		…
1610		2290
1611	sub parse_random_map_params {	2291	sub parse_random_map_params {
1612	my ($spec) = @_;	2292	my ($spec) = @_;
1613		2293
1614	my $rmp = { # defaults	2294	my $rmp = { # defaults
1615	xsize => 10,	2295	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2296	ysize => (cf::rndm 15, 40),
		2297	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2298	#layout => string,
1617	};	2299	};
1618		2300
1619	for (split /\n/, $spec) {	2301	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2302	my ($k, $v) = split /\s+/, $_, 2;
1621		2303
…		…
1625	$rmp	2307	$rmp
1626	}	2308	}
1627		2309
1628	sub prepare_random_map {	2310	sub prepare_random_map {
1629	my ($exit) = @_;	2311	my ($exit) = @_;
		2312
		2313	my $guard = cf::lock_acquire "exit_prepare:$exit";
1630		2314
1631	# all this does is basically replace the /! path by	2315	# all this does is basically replace the /! path by
1632	# a new random map path (?random/...) with a seed	2316	# a new random map path (?random/...) with a seed
1633	# that depends on the exit object	2317	# that depends on the exit object
1634		2318
1635	my $rmp = parse_random_map_params $exit->msg;	2319	my $rmp = parse_random_map_params $exit->msg;
1636		2320
1637	if ($exit->map) {	2321	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2322	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2323	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2324	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2325	$rmp->{origin_y} = $exit->y;
1642	}	2326	}
1643		2327
1644	$rmp->{random_seed} ||= $exit->random_seed;	2328	$rmp->{random_seed} ||= $exit->random_seed;
1645		2329
1646	my $data = cf::to_json $rmp;	2330	my $data = cf::to_json $rmp;
1647	my $md5 = Digest::MD5::md5_hex $data;	2331	my $md5 = Digest::MD5::md5_hex $data;
		2332	my $meta = "$RANDOMDIR/$md5.meta";
1648		2333
1649	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) {
1650	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;
1651		2338
1652	$exit->slaying ("?random/$md5");	2339	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2340	$exit->msg (undef);
1654	}	2341	}
1655	}	2342	}
…		…
1657	sub cf::object::player::enter_exit {	2344	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2345	my ($self, $exit) = @_;
1659		2346
1660	return unless $self->type == cf::PLAYER;	2347	return unless $self->type == cf::PLAYER;
1661		2348
		2349	if ($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
1662	$self->enter_link;	2360	$self->enter_link;
1663		2361
		2362	# if exit is damned, update players death & WoR home-position
		2363	$self->contr->savebed ($slaying, $hp, $sp)
		2364	if $exit->flag (FLAG_DAMNED);
		2365
1664	(cf::async {	2366	(async {
1665	$self->deactivate_recursive; # just to be sure	2367	$self->deactivate_recursive; # just to be sure
1666	unless (eval {	2368	unless (eval {
1667	prepare_random_map $exit	2369	$self->goto ($slaying, $hp, $sp);
1668	if $exit->slaying eq "/!";
1669
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1672		2370
1673	1;	2371	1;
1674	}) {	2372	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2373	$self->message ("Something went wrong deep within the crossfire server. "
1676	. "I'll try to bring you back to the map you were before. "	2374	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	2375	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2376	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2377
1680	warn "ERROR in enter_exit: $@";	2378	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2379	$self->leave_link;
1682	}	2380	}
1683	})->prio (1);	2381	})->prio (1);
…		…
1696		2394
1697	sub cf::client::send_drawinfo {	2395	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2396	my ($self, $text, $flags) = @_;
1699		2397
1700	utf8::encode $text;	2398	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2399	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2400	}
1703		2401
		2402	=item $client->send_msg ($color, $type, $msg, [extra...])
		2403
		2404	Send a drawinfo or msg packet to the client, formatting the msg for the
		2405	client if neccessary. C<$type> should be a string identifying the type of
		2406	the message, with C<log> being the default. If C<$color> is negative, suppress
		2407	the message unless the client supports the msg packet.
		2408
		2409	=cut
		2410
		2411	sub cf::client::send_msg {
		2412	my ($self, $color, $type, $msg, @extra) = @_;
		2413
		2414	$msg = $self->pl->expand_cfpod ($msg);
		2415
		2416	return unless @extra || length $msg;
		2417
		2418	if ($self->can_msg) {
		2419	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2420	} else {
		2421	# replace some tags by gcfclient-compatible ones
		2422	for ($msg) {
		2423	1 while
		2424	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2425	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2426	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2427	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2428	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2429	}
		2430
		2431	if ($color >= 0) {
		2432	if (0 && $msg =~ /\[/) {
		2433	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2434	} else {
		2435	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2436	$self->send_packet ("drawinfo $color $msg")
		2437	}
		2438	}
		2439	}
		2440	}
		2441
		2442	=item $client->ext_event ($type, %msg)
		2443
		2444	Sends an ext event to the client.
		2445
		2446	=cut
		2447
		2448	sub cf::client::ext_event($$%) {
		2449	my ($self, $type, %msg) = @_;
		2450
		2451	$msg{msgtype} = "event_$type";
		2452	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2453	}
1704		2454
1705	=item $success = $client->query ($flags, "text", \&cb)	2455	=item $success = $client->query ($flags, "text", \&cb)
1706		2456
1707	Queues a query to the client, calling the given callback with	2457	Queues a query to the client, calling the given callback with
1708	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2458	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1709	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2459	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1710		2460
1711	Queries can fail, so check the return code. Or don't, as queries will become	2461	Queries can fail, so check the return code. Or don't, as queries will
1712	reliable at some point in the future.	2462	become reliable at some point in the future.
1713		2463
1714	=cut	2464	=cut
1715		2465
1716	sub cf::client::query {	2466	sub cf::client::query {
1717	my ($self, $flags, $text, $cb) = @_;	2467	my ($self, $flags, $text, $cb) = @_;
…		…
1725	utf8::encode $text;	2475	utf8::encode $text;
1726	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2476	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1727		2477
1728	$self->send_packet ($self->{query_queue}[0][0])	2478	$self->send_packet ($self->{query_queue}[0][0])
1729	if @{ $self->{query_queue} } == 1;	2479	if @{ $self->{query_queue} } == 1;
		2480
		2481	1
1730	}	2482	}
1731		2483
1732	cf::client->attach (	2484	cf::client->attach (
		2485	on_connect => sub {
		2486	my ($ns) = @_;
		2487
		2488	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2489	},
1733	on_reply => sub {	2490	on_reply => sub {
1734	my ($ns, $msg) = @_;	2491	my ($ns, $msg) = @_;
1735		2492
1736	# this weird shuffling is so that direct followup queries	2493	# this weird shuffling is so that direct followup queries
1737	# get handled first	2494	# get handled first
1738	my $queue = delete $ns->{query_queue}	2495	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	2496	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		2497
1741	(shift @$queue)->[1]->($msg);	2498	(shift @$queue)->[1]->($msg);
		2499	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		2500
1743	push @{ $ns->{query_queue} }, @$queue;	2501	push @{ $ns->{query_queue} }, @$queue;
1744		2502
1745	if (@{ $ns->{query_queue} } == @$queue) {	2503	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	2504	if (@$queue) {
…		…
1748	} else {	2506	} else {
1749	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2507	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1750	}	2508	}
1751	}	2509	}
1752	},	2510	},
		2511	on_exticmd => sub {
		2512	my ($ns, $buf) = @_;
		2513
		2514	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2515
		2516	if (ref $msg) {
		2517	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2518	if (my %reply = $cb->($ns, $msg)) {
		2519	$reply{msgid} = $msg->{msgid};
		2520	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2521	}
		2522	}
		2523	} else {
		2524	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2525	}
		2526
		2527	cf::override;
		2528	},
1753	);	2529	);
1754		2530
1755	=item $client->coro (\&cb)	2531	=item $client->async (\&cb)
1756		2532
1757	Create a new coroutine, running the specified callback. The coroutine will	2533	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	2534	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	2535	or loss of connection).
1760		2536
1761	=cut	2537	=cut
1762		2538
1763	sub cf::client::coro {	2539	sub cf::client::async {
1764	my ($self, $cb) = @_;	2540	my ($self, $cb) = @_;
1765		2541
1766	my $coro = &cf::async ($cb);	2542	my $coro = &Coro::async ($cb);
1767		2543
1768	$coro->on_destroy (sub {	2544	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	2545	delete $self->{_coro}{$coro+0};
1770	});	2546	});
1771		2547
…		…
1804		2580
1805	# here we export the classes and methods available to script code	2581	# here we export the classes and methods available to script code
1806		2582
1807	=pod	2583	=pod
1808		2584
1809	The following fucntions and emthods are available within a safe environment:	2585	The following functions and methods are available within a safe environment:
1810		2586
1811	cf::object contr pay_amount pay_player map	2587	cf::object contr pay_amount pay_player map
1812	cf::object::player player	2588	cf::object::player player
1813	cf::player peaceful	2589	cf::player peaceful
1814	cf::map trigger	2590	cf::map trigger
…		…
1895	=back	2671	=back
1896		2672
1897	=cut	2673	=cut
1898		2674
1899	#############################################################################	2675	#############################################################################
		2676	# the server's init and main functions
1900		2677
1901	=head2 EXTENSION DATABASE SUPPORT	2678	sub load_facedata($) {
		2679	my ($path) = @_;
1902		2680
1903	Crossfire maintains a very simple database for extension use. It can	2681	warn "loading facedata from $path\n";
1904	currently store anything that can be serialised using Storable, which
1905	excludes objects.
1906		2682
1907	The parameter C<$family> should best start with the name of the extension	2683	my $facedata;
1908	using it, it should be unique.	2684	0 < aio_load $path, $facedata
		2685	or die "$path: $!";
1909		2686
1910	=over 4	2687	$facedata = Coro::Storable::thaw $facedata;
1911		2688
1912	=item $hashref = cf::db_get $family	2689	$facedata->{version} == 2
		2690	or cf::cleanup "$path: version mismatch, cannot proceed.";
1913		2691
1914	Return a hashref for use by the extension C<$family>, which can be
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917
1918	=item $value = cf::db_get $family => $key
1919
1920	Returns a single value from the database
1921
1922	=item cf::db_put $family => $hashref
1923
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926
1927	=item cf::db_put $family => $key => $value
1928
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939
1940	=cut
1941
1942	our $DB;
1943
1944	{
1945	my $path = cf::localdir . "/database.pst";
1946
1947	sub db_load() {
1948	$DB = stat $path ? Storable::retrieve $path : { };
1949	}	2692	{
		2693	my $faces = $facedata->{faceinfo};
1950		2694
1951	my $pid;	2695	while (my ($face, $info) = each %$faces) {
1952		2696	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1953	sub db_save() {	2697	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1954	waitpid $pid, 0 if $pid;	2698	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1955	if (0 == ($pid = fork)) {	2699	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1956	$DB->{_meta}{version} = 1;	2700	Coro::cede;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});
1973
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}
1978
1979	sub db_get($;$) {
1980	@_ >= 2
1981	? $DB->{$_[0]}{$_[1]}
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984
1985	sub db_put($$;$) {
1986	if (@_ >= 3) {
1987	$DB->{$_[0]}{$_[1]} = $_[2];
1988	} else {
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993
1994	cf::global->attach (
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	2701	}
1999	);
2000	}
2001		2702
2002	#############################################################################	2703	while (my ($face, $info) = each %$faces) {
2003	# the server's main()	2704	next unless $info->{smooth};
		2705	my $idx = cf::face::find $face
		2706	or next;
		2707	if (my $smooth = cf::face::find $info->{smooth}) {
		2708	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2709	} else {
		2710	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2711	}
		2712	Coro::cede;
		2713	}
		2714	}
		2715
		2716	{
		2717	my $anims = $facedata->{animinfo};
		2718
		2719	while (my ($anim, $info) = each %$anims) {
		2720	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2721	Coro::cede;
		2722	}
		2723
		2724	cf::anim::invalidate_all; # d'oh
		2725	}
		2726
		2727	1
		2728	}
		2729
		2730	sub reload_regions {
		2731	load_resource_file "$MAPDIR/regions"
		2732	or die "unable to load regions file\n";
		2733	}
		2734
		2735	sub reload_facedata {
		2736	load_facedata "$DATADIR/facedata"
		2737	or die "unable to load facedata\n";
		2738	}
		2739
		2740	sub reload_archetypes {
		2741	load_resource_file "$DATADIR/archetypes"
		2742	or die "unable to load archetypes\n";
		2743	#d# NEED to laod twice to resolve forward references
		2744	# this really needs to be done in an extra post-pass
		2745	# (which needs to be synchronous, so solve it differently)
		2746	load_resource_file "$DATADIR/archetypes"
		2747	or die "unable to load archetypes\n";
		2748	}
		2749
		2750	sub reload_treasures {
		2751	load_resource_file "$DATADIR/treasures"
		2752	or die "unable to load treasurelists\n";
		2753	}
		2754
		2755	sub reload_resources {
		2756	warn "reloading resource files...\n";
		2757
		2758	reload_regions;
		2759	reload_facedata;
		2760	#reload_archetypes;#d#
		2761	reload_archetypes;
		2762	reload_treasures;
		2763
		2764	warn "finished reloading resource files\n";
		2765	}
		2766
		2767	sub init {
		2768	reload_resources;
		2769	}
2004		2770
2005	sub cfg_load {	2771	sub cfg_load {
2006	open my $fh, "<:utf8", cf::confdir . "/config"	2772	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	2773	or return;
2008		2774
2009	local $/;	2775	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	2776	*CFG = YAML::Syck::Load <$fh>;
2011		2777
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2778	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013		2779
		2780	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2781	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2782
2014	if (exists $CFG{mlockall}) {	2783	if (exists $CFG{mlockall}) {
2015	eval {	2784	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	2785	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	2786	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	2787	};
2019	warn $@ if $@;	2788	warn $@ if $@;
2020	}	2789	}
2021	}	2790	}
2022		2791
2023	sub main {	2792	sub main {
2024	# we must not ever block the main coroutine	2793	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	2794	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2795	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	2796	(async {
2028	Event::one_event;	2797	Event::one_event;
2029	})->();	2798	})->prio (Coro::PRIO_MAX);
2030	};	2799	};
2031		2800
2032	cfg_load;	2801	cfg_load;
2033	db_load;	2802	db_init;
2034	load_extensions;	2803	load_extensions;
		2804
		2805	$TICK_WATCHER->start;
2035	Event::loop;	2806	Event::loop;
2036	}	2807	}
2037		2808
2038	#############################################################################	2809	#############################################################################
2039	# initialisation	2810	# initialisation and cleanup
2040		2811
		2812	# install some emergency cleanup handlers
		2813	BEGIN {
		2814	for my $signal (qw(INT HUP TERM)) {
		2815	Event->signal (
		2816	reentrant => 0,
		2817	data => WF_AUTOCANCEL,
		2818	signal => $signal,
		2819	prio => 0,
		2820	cb => sub {
		2821	cf::cleanup "SIG$signal";
		2822	},
		2823	);
		2824	}
		2825	}
		2826
		2827	sub write_runtime {
		2828	my $runtime = "$LOCALDIR/runtime";
		2829
		2830	# first touch the runtime file to show we are still running:
		2831	# the fsync below can take a very very long time.
		2832
		2833	IO::AIO::aio_utime $runtime, undef, undef;
		2834
		2835	my $guard = cf::lock_acquire "write_runtime";
		2836
		2837	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2838	or return;
		2839
		2840	my $value = $cf::RUNTIME + 90 + 10;
		2841	# 10 is the runtime save interval, for a monotonic clock
		2842	# 60 allows for the watchdog to kill the server.
		2843
		2844	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2845	and return;
		2846
		2847	# always fsync - this file is important
		2848	aio_fsync $fh
		2849	and return;
		2850
		2851	# touch it again to show we are up-to-date
		2852	aio_utime $fh, undef, undef;
		2853
		2854	close $fh
		2855	or return;
		2856
		2857	aio_rename "$runtime~", $runtime
		2858	and return;
		2859
		2860	warn "runtime file written.\n";
		2861
		2862	1
		2863	}
		2864
		2865	sub emergency_save() {
		2866	my $freeze_guard = cf::freeze_mainloop;
		2867
		2868	warn "enter emergency perl save\n";
		2869
		2870	cf::sync_job {
		2871	# use a peculiar iteration method to avoid tripping on perl
		2872	# refcount bugs in for. also avoids problems with players
		2873	# and maps saved/destroyed asynchronously.
		2874	warn "begin emergency player save\n";
		2875	for my $login (keys %cf::PLAYER) {
		2876	my $pl = $cf::PLAYER{$login} or next;
		2877	$pl->valid or next;
		2878	$pl->save;
		2879	}
		2880	warn "end emergency player save\n";
		2881
		2882	warn "begin emergency map save\n";
		2883	for my $path (keys %cf::MAP) {
		2884	my $map = $cf::MAP{$path} or next;
		2885	$map->valid or next;
		2886	$map->save;
		2887	}
		2888	warn "end emergency map save\n";
		2889
		2890	warn "begin emergency database checkpoint\n";
		2891	BDB::db_env_txn_checkpoint $DB_ENV;
		2892	warn "end emergency database checkpoint\n";
		2893	};
		2894
		2895	warn "leave emergency perl save\n";
		2896	}
		2897
		2898	sub post_cleanup {
		2899	my ($make_core) = @_;
		2900
		2901	warn Carp::longmess "post_cleanup backtrace"
		2902	if $make_core;
		2903	}
		2904
2041	sub reload() {	2905	sub do_reload_perl() {
2042	# can/must only be called in main	2906	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	2907	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	2908	warn "can only reload from main coroutine";
2045	return;	2909	return;
2046	}	2910	}
2047		2911
2048	warn "reloading...";	2912	warn "reloading...";
2049		2913
2050	my $guard = freeze_mainloop;	2914	warn "entering sync_job";
		2915
		2916	cf::sync_job {
		2917	cf::write_runtime; # external watchdog should not bark
2051	cf::emergency_save;	2918	cf::emergency_save;
		2919	cf::write_runtime; # external watchdog should not bark
2052		2920
2053	eval {	2921	warn "syncing database to disk";
		2922	BDB::db_env_txn_checkpoint $DB_ENV;
		2923
2054	# if anything goes wrong in here, we should simply crash as we already saved	2924	# if anything goes wrong in here, we should simply crash as we already saved
2055		2925
2056	# cancel all watchers	2926	warn "cancelling all WF_AUTOCANCEL watchers";
2057	for (Event::all_watchers) {	2927	for (Event::all_watchers) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	2928	$_->cancel if $_->data & WF_AUTOCANCEL;
2059	}	2929	}
2060		2930
		2931	warn "flushing outstanding aio requests";
		2932	for (;;) {
		2933	BDB::flush;
		2934	IO::AIO::flush;
		2935	Coro::cede;
		2936	last unless IO::AIO::nreqs || BDB::nreqs;
		2937	warn "iterate...";
		2938	}
		2939
		2940	++$RELOAD;
		2941
2061	# cancel all extension coros	2942	warn "cancelling all extension coros";
2062	$_->cancel for values %EXT_CORO;	2943	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();	2944	%EXT_CORO = ();
2064		2945
2065	# unload all extensions	2946	warn "removing commands";
2066	for (@exts) {	2947	%COMMAND = ();
		2948
		2949	warn "removing ext/exti commands";
		2950	%EXTCMD = ();
		2951	%EXTICMD = ();
		2952
		2953	warn "unloading/nuking all extensions";
		2954	for my $pkg (@EXTS) {
2067	warn "unloading <$_>";	2955	warn "... unloading $pkg";
2068	unload_extension $_;	2956
		2957	if (my $cb = $pkg->can ("unload")) {
		2958	eval {
		2959	$cb->($pkg);
		2960	1
		2961	} or warn "$pkg unloaded, but with errors: $@";
2069	}	2962	}
2070		2963
		2964	warn "... nuking $pkg";
		2965	Symbol::delete_package $pkg;
		2966	}
		2967
2071	# unload all modules loaded from $LIBDIR	2968	warn "unloading all perl modules loaded from $LIBDIR";
2072	while (my ($k, $v) = each %INC) {	2969	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2970	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074		2971
2075	warn "removing <$k>";	2972	warn "... unloading $k";
2076	delete $INC{$k};	2973	delete $INC{$k};
2077		2974
2078	$k =~ s/\.pm$//;	2975	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;	2976	$k =~ s/\//::/g;
2080		2977
…		…
2083	}	2980	}
2084		2981
2085	Symbol::delete_package $k;	2982	Symbol::delete_package $k;
2086	}	2983	}
2087		2984
2088	# sync database to disk
2089	cf::db_sync;
2090	IO::AIO::flush;
2091
2092	# get rid of safe::, as good as possible	2985	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	2986	Symbol::delete_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2987	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		2988
2096	# remove register_script_function callbacks
2097	# TODO
2098
2099	# unload cf.pm "a bit"	2989	warn "unloading cf.pm \"a bit\"";
2100	delete $INC{"cf.pm"};	2990	delete $INC{"cf.pm"};
		2991	delete $INC{"cf/pod.pm"};
2101		2992
2102	# don't, removes xs symbols, too,	2993	# don't, removes xs symbols, too,
2103	# and global variables created in xs	2994	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	2995	#Symbol::delete_package __PACKAGE__;
2105		2996
2106	# reload cf.pm	2997	warn "unload completed, starting to reload now";
		2998
2107	warn "reloading cf.pm";	2999	warn "reloading cf.pm";
2108	require cf;	3000	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3001	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110		3002
2111	# load config and database again	3003	warn "loading config and database again";
2112	cf::cfg_load;	3004	cf::cfg_load;
2113	cf::db_load;
2114		3005
2115	# load extensions
2116	warn "load extensions";	3006	warn "loading extensions";
2117	cf::load_extensions;	3007	cf::load_extensions;
2118		3008
2119	# reattach attachments to objects	3009	warn "reattaching attachments to objects/players";
2120	warn "reattach";	3010	_global_reattach; # objects, sockets
2121	_global_reattach;	3011	warn "reattaching attachments to maps";
2122	};	3012	reattach $_ for values %MAP;
		3013	warn "reattaching attachments to players";
		3014	reattach $_ for values %PLAYER;
2123		3015
2124	if ($@) {	3016	warn "leaving sync_job";
		3017
		3018	1
		3019	} or do {
2125	warn $@;	3020	warn $@;
2126	warn "error while reloading, exiting.";	3021	warn "error while reloading, exiting.";
2127	exit 1;	3022	exit 1;
2128	}	3023	};
2129		3024
2130	warn "reloaded successfully";	3025	warn "reloaded";
2131	};	3026	};
2132		3027
2133	#############################################################################	3028	our $RELOAD_WATCHER; # used only during reload
2134		3029
2135	unless ($LINK_MAP) {	3030	sub reload_perl() {
2136	$LINK_MAP = cf::map::new;	3031	# doing reload synchronously and two reloads happen back-to-back,
		3032	# coro crashes during coro_state_free->destroy here.
2137		3033
2138	$LINK_MAP->width (41);	3034	$RELOAD_WATCHER ||= Event->timer (
2139	$LINK_MAP->height (41);	3035	reentrant => 0,
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,	3036	after => 0,
		3037	data => WF_AUTOCANCEL,
2148	cb => sub {	3038	cb => sub {
2149	$_[0]->w->cancel;	3039	do_reload_perl;
2150		3040	undef $RELOAD_WATCHER;
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});	3041	},
2169		3042	);
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	3043	}
2175
2176	register "<global>", __PACKAGE__;
2177		3044
2178	register_command "reload" => sub {	3045	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	3046	my ($who, $arg) = @_;
2180		3047
2181	if ($who->flag (FLAG_WIZ)) {	3048	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	3049	$who->message ("reloading server.");
		3050	async { reload_perl };
2185	}	3051	}
2186	};	3052	};
2187		3053
2188	unshift @INC, $LIBDIR;	3054	unshift @INC, $LIBDIR;
2189		3055
		3056	my $bug_warning = 0;
		3057
		3058	our @WAIT_FOR_TICK;
		3059	our @WAIT_FOR_TICK_BEGIN;
		3060
		3061	sub wait_for_tick {
		3062	return unless $TICK_WATCHER->is_active;
		3063	return if $Coro::current == $Coro::main;
		3064
		3065	my $signal = new Coro::Signal;
		3066	push @WAIT_FOR_TICK, $signal;
		3067	$signal->wait;
		3068	}
		3069
		3070	sub wait_for_tick_begin {
		3071	return unless $TICK_WATCHER->is_active;
		3072	return if $Coro::current == $Coro::main;
		3073
		3074	my $signal = new Coro::Signal;
		3075	push @WAIT_FOR_TICK_BEGIN, $signal;
		3076	$signal->wait;
		3077	}
		3078
		3079	my $min = 1e6;#d#
		3080	my $avg = 10;
2190	$TICK_WATCHER = Event->timer (	3081	$TICK_WATCHER = Event->timer (
2191	reentrant => 0,	3082	reentrant => 0,
		3083	parked => 1,
2192	prio => 0,	3084	prio => 0,
2193	at => $NEXT_TICK || $TICK,	3085	at => $NEXT_TICK || $TICK,
2194	data => WF_AUTOCANCEL,	3086	data => WF_AUTOCANCEL,
2195	cb => sub {	3087	cb => sub {
		3088	if ($Coro::current != $Coro::main) {
		3089	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3090	unless ++$bug_warning > 10;
		3091	return;
		3092	}
		3093
		3094	$NOW = $tick_start = Event::time;
		3095
2196	cf::server_tick; # one server iteration	3096	cf::server_tick; # one server iteration
		3097
		3098	0 && sync_job {#d#
		3099	for(1..10) {
		3100	my $t = Event::time;
		3101	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3102	or die;
		3103
		3104	$map->width (50);
		3105	$map->height (50);
		3106	$map->alloc;
		3107	$map->_load_objects ("/tmp/x.map", 1);
		3108	my $t = Event::time - $t;
		3109
		3110	#next unless $t < 0.0013;#d#
		3111	if ($t < $min) {
		3112	$min = $t;
		3113	}
		3114	$avg = $avg * 0.99 + $t * 0.01;
		3115	}
		3116	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3117	exit 0;
		3118	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3119	};
		3120
2197	$RUNTIME += $TICK;	3121	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;	3122	$NEXT_TICK += $TICK;
2199		3123
		3124	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3125	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3126	Coro::async_pool {
		3127	write_runtime
		3128	or warn "ERROR: unable to write runtime file: $!";
		3129	};
		3130	}
		3131
		3132	# my $AFTER = Event::time;
		3133	# warn $AFTER - $NOW;#d#
		3134
		3135	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3136	$sig->send;
		3137	}
		3138	while (my $sig = shift @WAIT_FOR_TICK) {
		3139	$sig->send;
		3140	}
		3141
		3142	$NOW = Event::time;
		3143
2200	# if we are delayed by four ticks or more, skip them all	3144	# if we are delayed by four ticks or more, skip them all
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3145	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2202		3146
2203	$TICK_WATCHER->at ($NEXT_TICK);	3147	$TICK_WATCHER->at ($NEXT_TICK);
2204	$TICK_WATCHER->start;	3148	$TICK_WATCHER->start;
		3149
		3150	$LOAD = ($NOW - $tick_start) / $TICK;
		3151	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3152
		3153	_post_tick;
		3154
		3155
2205	},	3156	},
2206	);	3157	);
2207		3158
		3159	{
2208	IO::AIO::max_poll_time $TICK * 0.2;	3160	BDB::max_poll_time $TICK * 0.1;
2209		3161	$BDB_POLL_WATCHER = Event->io (
2210	Event->io (	3162	reentrant => 0,
2211	fd => IO::AIO::poll_fileno,	3163	fd => BDB::poll_fileno,
2212	poll => 'r',	3164	poll => 'r',
2213	prio => 5,	3165	prio => 0,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,	3166	data => WF_AUTOCANCEL,
2220	after => 0,	3167	cb => \&BDB::poll_cb,
2221	interval => 10,	3168	);
2222	cb => sub {	3169	BDB::min_parallel 8;
2223	(Coro::unblock_sub {	3170
2224	write_runtime	3171	BDB::set_sync_prepare {
2225	or warn "ERROR: unable to write runtime file: $!";	3172	my $status;
		3173	my $current = $Coro::current;
		3174	(
		3175	sub {
		3176	$status = $!;
		3177	$current->ready; undef $current;
		3178	},
		3179	sub {
		3180	Coro::schedule while defined $current;
		3181	$! = $status;
		3182	},
		3183	)
		3184	};
		3185
		3186	unless ($DB_ENV) {
		3187	$DB_ENV = BDB::db_env_create;
		3188
		3189	cf::sync_job {
		3190	eval {
		3191	BDB::db_env_open
		3192	$DB_ENV,
		3193	$BDBDIR,
		3194	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3195	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3196	0666;
		3197
		3198	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3199
		3200	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3201	$DB_ENV->set_lk_detect;
		3202	};
		3203
		3204	cf::cleanup "db_env_open(db): $@" if $@;
2226	})->();	3205	};
2227	},	3206	}
2228	);	3207	}
		3208
		3209	{
		3210	IO::AIO::min_parallel 8;
		3211
		3212	undef $Coro::AIO::WATCHER;
		3213	IO::AIO::max_poll_time $TICK * 0.1;
		3214	$AIO_POLL_WATCHER = Event->io (
		3215	reentrant => 0,
		3216	data => WF_AUTOCANCEL,
		3217	fd => IO::AIO::poll_fileno,
		3218	poll => 'r',
		3219	prio => 6,
		3220	cb => \&IO::AIO::poll_cb,
		3221	);
		3222	}
		3223
		3224	my $_log_backtrace;
		3225
		3226	sub _log_backtrace {
		3227	my ($msg, @addr) = @_;
		3228
		3229	$msg =~ s/\n//;
		3230
		3231	# limit the # of concurrent backtraces
		3232	if ($_log_backtrace < 2) {
		3233	++$_log_backtrace;
		3234	async {
		3235	my @bt = fork_call {
		3236	@addr = map { sprintf "%x", $_ } @addr;
		3237	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3238	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3239	or die "addr2line: $!";
		3240
		3241	my @funcs;
		3242	my @res = <$fh>;
		3243	chomp for @res;
		3244	while (@res) {
		3245	my ($func, $line) = splice @res, 0, 2, ();
		3246	push @funcs, "[$func] $line";
		3247	}
		3248
		3249	@funcs
		3250	};
		3251
		3252	LOG llevInfo, "[ABT] $msg\n";
		3253	LOG llevInfo, "[ABT] $_\n" for @bt;
		3254	--$_log_backtrace;
		3255	};
		3256	} else {
		3257	LOG llevInfo, "[ABT] $msg\n";
		3258	LOG llevInfo, "[ABT] [suppressed]\n";
		3259	}
		3260	}
		3261
		3262	# load additional modules
		3263	use cf::pod;
2229		3264
2230	END { cf::emergency_save }	3265	END { cf::emergency_save }
2231		3266
2232	1	3267	1
2233		3268

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