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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 1.292 by root, Tue Jul 3 00:54:57 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	1 while s/\s*\n\s*\n\s*/\n/;
		1418
		1419	$_
		1420	}
		1421
		1422	sub hintmode {
		1423	$_[0]{hintmode} = $_[1] if @_ > 1;
		1424	$_[0]{hintmode}
		1425	}
		1426
		1427	=item $player->ext_reply ($msgid, %msg)
		1428
		1429	Sends an ext reply to the player.
		1430
		1431	=cut
		1432
		1433	sub ext_reply($$%) {
		1434	my ($self, $id, %msg) = @_;
		1435
		1436	$msg{msgid} = $id;
		1437	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1438	}
		1439
		1440	=item $player->ext_event ($type, %msg)
		1441
		1442	Sends an ext event to the client.
		1443
		1444	=cut
		1445
		1446	sub ext_event($$%) {
		1447	my ($self, $type, %msg) = @_;
		1448
		1449	$self->ns->ext_event ($type, %msg);
		1450	}
		1451
		1452	=head3 cf::region
		1453
		1454	=over 4
		1455
		1456	=cut
		1457
		1458	package cf::region;
		1459
		1460	=item cf::region::find_by_path $path
		1461
		1462	Tries to decuce the likely region for a map knowing only its path.
		1463
		1464	=cut
		1465
		1466	sub find_by_path($) {
984	my ($path) = @_;	1467	my ($path) = @_;
985		1468
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1469	my ($match, $specificity);
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991		1470
992	warn "loading '$path' into '$pkg'\n";	1471	for my $region (list) {
993		1472	if ($region->match && $path =~ $region->match) {
994	open my $fh, "<:utf8", $path	1473	($match, $specificity) = ($region, $region->specificity)
995	or die "$path: $!";	1474	if $region->specificity > $specificity;
996		1475	}
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	# }	1476	}
1026		1477
1027	# remove commands	1478	$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	}	1479	}
1133		1480
1134	=back	1481	=back
1135
1136		1482
1137	=head3 cf::map	1483	=head3 cf::map
1138		1484
1139	=over 4	1485	=over 4
1140		1486
…		…
1143	package cf::map;	1489	package cf::map;
1144		1490
1145	use Fcntl;	1491	use Fcntl;
1146	use Coro::AIO;	1492	use Coro::AIO;
1147		1493
		1494	use overload
		1495	'""' => \&as_string,
		1496	fallback => 1;
		1497
1148	our $MAX_RESET = 3600;	1498	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1499	our $DEFAULT_RESET = 3000;
1150		1500
1151	sub generate_random_map {	1501	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1502	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1503	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1504	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1505	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1506	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1507	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1508	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1509	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1510	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1511	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1512	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1513	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1514	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1515	(cf::region::find $rmp->{region}), $rmp->{custom}
		1516	)
		1517	}
		1518
		1519	=item cf::map->register ($regex, $prio)
		1520
		1521	Register a handler for the map path matching the given regex at the
		1522	givne priority (higher is better, built-in handlers have priority 0, the
		1523	default).
		1524
		1525	=cut
		1526
		1527	sub register {
		1528	my (undef, $regex, $prio) = @_;
		1529	my $pkg = caller;
		1530
		1531	no strict;
		1532	push @{"$pkg\::ISA"}, __PACKAGE__;
		1533
		1534	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1535	}
		1536
		1537	# also paths starting with '/'
		1538	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1539
		1540	sub thawer_merge {
		1541	my ($self, $merge) = @_;
		1542
		1543	# we have to keep some variables in memory intact
		1544	local $self->{path};
		1545	local $self->{load_path};
		1546
		1547	$self->SUPER::thawer_merge ($merge);
		1548	}
		1549
		1550	sub normalise {
		1551	my ($path, $base) = @_;
		1552
		1553	$path = "$path"; # make sure its a string
		1554
		1555	$path =~ s/\.map$//;
		1556
		1557	# map plan:
		1558	#
		1559	# /! non-realised random map exit (special hack!)
		1560	# {... are special paths that are not being touched
		1561	# ?xxx/... are special absolute paths
		1562	# ?random/... random maps
		1563	# /... normal maps
		1564	# ~user/... per-player map of a specific user
		1565
		1566	$path =~ s/$PATH_SEP/\//go;
		1567
		1568	# treat it as relative path if it starts with
		1569	# something that looks reasonable
		1570	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1571	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1572
		1573	$base =~ s{[^/]+/?$}{};
		1574	$path = "$base/$path";
		1575	}
		1576
		1577	for ($path) {
		1578	redo if s{//}{/};
		1579	redo if s{/\.?/}{/};
		1580	redo if s{/[^/]+/\.\./}{/};
		1581	}
		1582
		1583	$path
		1584	}
		1585
		1586	sub new_from_path {
		1587	my (undef, $path, $base) = @_;
		1588
		1589	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1590
		1591	$path = normalise $path, $base;
		1592
		1593	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1594	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1595	my $self = bless cf::map::new, $pkg;
		1596	$self->{path} = $path; $self->path ($path);
		1597	$self->init; # pass $1 etc.
		1598	return $self;
		1599	}
		1600	}
		1601
		1602	Carp::carp "unable to resolve path '$path' (base '$base').";
		1603	()
		1604	}
		1605
		1606	sub init {
		1607	my ($self) = @_;
		1608
		1609	$self
		1610	}
		1611
		1612	sub as_string {
		1613	my ($self) = @_;
		1614
		1615	"$self->{path}"
		1616	}
		1617
		1618	# the displayed name, this is a one way mapping
		1619	sub visible_name {
		1620	&as_string
		1621	}
		1622
		1623	# the original (read-only) location
		1624	sub load_path {
		1625	my ($self) = @_;
		1626
		1627	"$MAPDIR/$self->{path}.map"
		1628	}
		1629
		1630	# the temporary/swap location
		1631	sub save_path {
		1632	my ($self) = @_;
		1633
		1634	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1635	"$TMPDIR/$path.map"
		1636	}
		1637
		1638	# the unique path, undef == no special unique path
		1639	sub uniq_path {
		1640	my ($self) = @_;
		1641
		1642	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1643	"$UNIQUEDIR/$path"
1168	}	1644	}
1169		1645
1170	# and all this just because we cannot iterate over	1646	# and all this just because we cannot iterate over
1171	# all maps in C++...	1647	# all maps in C++...
1172	sub change_all_map_light {	1648	sub change_all_map_light {
…		…
1174		1650
1175	$_->change_map_light ($change)	1651	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1652	for grep $_->outdoor, values %cf::MAP;
1177	}	1653	}
1178		1654
		1655	sub decay_objects {
		1656	my ($self) = @_;
		1657
		1658	return if $self->{deny_reset};
		1659
		1660	$self->do_decay_objects;
		1661	}
		1662
		1663	sub unlink_save {
		1664	my ($self) = @_;
		1665
		1666	utf8::encode (my $save = $self->save_path);
		1667	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1668	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1669	}
		1670
1179	sub try_load_header($) {	1671	sub load_header_from($) {
1180	my ($path) = @_;	1672	my ($self, $path) = @_;
1181		1673
1182	utf8::encode $path;	1674	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1675	#aio_open $path, O_RDONLY, 0
		1676	# or return;
		1677
		1678	$self->_load_header ($path)
1184	or return;	1679	or return;
1185		1680
1186	my $map = cf::map::new	1681	$self->{load_path} = $path;
		1682
		1683	1
		1684	}
		1685
		1686	sub load_header_orig {
		1687	my ($self) = @_;
		1688
		1689	$self->load_header_from ($self->load_path)
		1690	}
		1691
		1692	sub load_header_temp {
		1693	my ($self) = @_;
		1694
		1695	$self->load_header_from ($self->save_path)
		1696	}
		1697
		1698	sub prepare_temp {
		1699	my ($self) = @_;
		1700
		1701	$self->last_access ((delete $self->{last_access})
		1702	|| $cf::RUNTIME); #d#
		1703	# safety
		1704	$self->{instantiate_time} = $cf::RUNTIME
		1705	if $self->{instantiate_time} > $cf::RUNTIME;
		1706	}
		1707
		1708	sub prepare_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->{load_original} = 1;
		1712	$self->{instantiate_time} = $cf::RUNTIME;
		1713	$self->last_access ($cf::RUNTIME);
		1714	$self->instantiate;
		1715	}
		1716
		1717	sub load_header {
		1718	my ($self) = @_;
		1719
		1720	if ($self->load_header_temp) {
		1721	$self->prepare_temp;
		1722	} else {
		1723	$self->load_header_orig
1187	or return;	1724	or return;
		1725	$self->prepare_orig;
		1726	}
1188		1727
1189	$map->load_header ($path)	1728	$self->{deny_reset} = 1
1190	or return;	1729	if $self->no_reset;
1191		1730
1192	$map->{load_path} = $path;	1731	$self->default_region (cf::region::find_by_path $self->{path})
		1732	unless $self->default_region;
1193		1733
1194	$map	1734	1
1195	}	1735	}
1196		1736
1197	sub find;	1737	sub find;
1198	sub find {	1738	sub find {
1199	my ($path, $origin) = @_;	1739	my ($path, $origin) = @_;
1200		1740
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1741	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1742
1206	cf::lock_wait "map_find:$key";	1743	cf::lock_wait "map_find:$path";
1207		1744
1208	$cf::MAP{$key} || do {	1745	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1746	my $guard = cf::lock_acquire "map_find:$path";
1210		1747	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;	1748	or return;
1230		1749
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;	1750	$map->{last_save} = $cf::RUNTIME;
1243		1751
1244	Coro::cede;	1752	$map->load_header
		1753	or return;
1245		1754
1246	if ($map->should_reset) {	1755	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1756	# doing this can freeze the server in a sync job, obviously
		1757	#$cf::WAIT_FOR_TICK->wait;
1247	$map->reset;	1758	$map->reset;
1248	undef $guard;	1759	undef $guard;
1249	$map = find $path	1760	return find $path;
1250	or return;
1251	}	1761	}
1252		1762
1253	$cf::MAP{$key} = $map	1763	$cf::MAP{$path} = $map
1254	}	1764	}
1255	}	1765	}
		1766
		1767	sub pre_load { }
		1768	sub post_load { }
1256		1769
1257	sub load {	1770	sub load {
1258	my ($self) = @_;	1771	my ($self) = @_;
1259		1772
		1773	local $self->{deny_reset} = 1; # loading can take a long time
		1774
1260	my $path = $self->{path};	1775	my $path = $self->{path};
		1776
		1777	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1778	my $guard = cf::lock_acquire "map_load:$path";
1262		1779
1263	return if $self->in_memory != cf::MAP_SWAPPED;	1780	return if $self->in_memory != cf::MAP_SWAPPED;
1264		1781
1265	$self->in_memory (cf::MAP_LOADING);	1782	$self->in_memory (cf::MAP_LOADING);
1266		1783
1267	$self->alloc;	1784	$self->alloc;
		1785
		1786	$self->pre_load;
		1787	Coro::cede;
		1788
1268	$self->load_objects ($self->{load_path}, 1)	1789	$self->_load_objects ($self->{load_path}, 1)
1269	or return;	1790	or return;
1270		1791
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1792	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272	if delete $self->{load_original};	1793	if delete $self->{load_original};
1273		1794
1274	if (my $uniq = $path->uniq_path) {	1795	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	1796	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	1797	if (aio_open $uniq, O_RDONLY, 0) {
1277	$self->clear_unique_items;	1798	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	1799	$self->_load_objects ($uniq, 0);
1279	}	1800	}
1280	}	1801	}
1281		1802
1282	Coro::cede;	1803	Coro::cede;
1283
1284	# now do the right thing for maps	1804	# now do the right thing for maps
1285	$self->link_multipart_objects;	1805	$self->link_multipart_objects;
1286
1287	if ($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)	1806	$self->difficulty ($self->estimate_difficulty)
1296	unless $self->difficulty;	1807	unless $self->difficulty;
		1808	Coro::cede;
		1809
		1810	unless ($self->{deny_activate}) {
		1811	$self->decay_objects;
		1812	$self->fix_auto_apply;
		1813	$self->update_buttons;
		1814	Coro::cede;
		1815	$self->set_darkness_map;
		1816	Coro::cede;
1297	$self->activate;	1817	$self->activate;
1298	}	1818	}
1299		1819
1300	Coro::cede;
1301
1302	$self->in_memory (cf::MAP_IN_MEMORY);	1820	$self->in_memory (cf::MAP_IN_MEMORY);
		1821	}
		1822
		1823	$self->post_load;
		1824	}
		1825
		1826	sub customise_for {
		1827	my ($self, $ob) = @_;
		1828
		1829	return find "~" . $ob->name . "/" . $self->{path}
		1830	if $self->per_player;
		1831
		1832	# return find "?party/" . $ob->name . "/" . $self->{path}
		1833	# if $self->per_party;
		1834
		1835	$self
		1836	}
		1837
		1838	# find and load all maps in the 3x3 area around a map
		1839	sub load_diag {
		1840	my ($map) = @_;
		1841
		1842	my @diag; # diagonal neighbours
		1843
		1844	for (0 .. 3) {
		1845	my $neigh = $map->tile_path ($_)
		1846	or next;
		1847	$neigh = find $neigh, $map
		1848	or next;
		1849	$neigh->load;
		1850
		1851	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1852	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1853	}
		1854
		1855	for (@diag) {
		1856	my $neigh = find @$_
		1857	or next;
		1858	$neigh->load;
		1859	}
1303	}	1860	}
1304		1861
1305	sub find_sync {	1862	sub find_sync {
1306	my ($path, $origin) = @_;	1863	my ($path, $origin) = @_;
1307		1864
1308	cf::sync_job { cf::map::find $path, $origin }	1865	cf::sync_job { find $path, $origin }
1309	}	1866	}
1310		1867
1311	sub do_load_sync {	1868	sub do_load_sync {
1312	my ($map) = @_;	1869	my ($map) = @_;
1313		1870
1314	cf::sync_job { $map->load };	1871	cf::sync_job { $map->load };
1315	}	1872	}
1316		1873
		1874	our %MAP_PREFETCH;
		1875	our $MAP_PREFETCHER = undef;
		1876
		1877	sub find_async {
		1878	my ($path, $origin) = @_;
		1879
		1880	$path = normalise $path, $origin && $origin->{path};
		1881
		1882	if (my $map = $cf::MAP{$path}) {
		1883	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1884	}
		1885
		1886	undef $MAP_PREFETCH{$path};
		1887	$MAP_PREFETCHER ||= cf::async {
		1888	while (%MAP_PREFETCH) {
		1889	for my $path (keys %MAP_PREFETCH) {
		1890	my $map = find $path
		1891	or next;
		1892	$map->load;
		1893
		1894	delete $MAP_PREFETCH{$path};
		1895	}
		1896	}
		1897	undef $MAP_PREFETCHER;
		1898	};
		1899	$MAP_PREFETCHER->prio (6);
		1900
		1901	()
		1902	}
		1903
1317	sub save {	1904	sub save {
1318	my ($self) = @_;	1905	my ($self) = @_;
1319		1906
		1907	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1908
1320	$self->{last_save} = $cf::RUNTIME;	1909	$self->{last_save} = $cf::RUNTIME;
1321		1910
1322	return unless $self->dirty;	1911	return unless $self->dirty;
1323		1912
1324	my $save = $self->{path}->save_path; utf8::encode $save;	1913	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1914	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		1915
1327	$self->{load_path} = $save;	1916	$self->{load_path} = $save;
1328		1917
1329	return if $self->{deny_save};	1918	return if $self->{deny_save};
1330		1919
1331	local $self->{last_access} = $self->last_access;#d#	1920	local $self->{last_access} = $self->last_access;#d#
1332		1921
		1922	cf::async {
		1923	$_->contr->save for $self->players;
		1924	};
		1925
1333	if ($uniq) {	1926	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1927	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	1928	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	1929	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1930	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}	1931	}
1339	}	1932	}
1340		1933
1341	sub swap_out {	1934	sub swap_out {
1342	my ($self) = @_;	1935	my ($self) = @_;
1343		1936
1344	# save first because save cedes	1937	# save first because save cedes
1345	$self->save;	1938	$self->save;
		1939
		1940	my $lock = cf::lock_acquire "map_data:" . $self->path;
1346		1941
1347	return if $self->players;	1942	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	1943	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};	1944	return if $self->{deny_save};
1350		1945
…		…
1354		1949
1355	sub reset_at {	1950	sub reset_at {
1356	my ($self) = @_;	1951	my ($self) = @_;
1357		1952
1358	# TODO: safety, remove and allow resettable per-player maps	1953	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};
1360	return 1e99 if $self->{deny_reset};	1954	return 1e99 if $self->{deny_reset};
1361		1955
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1956	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1957	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		1958
…		…
1369	my ($self) = @_;	1963	my ($self) = @_;
1370		1964
1371	$self->reset_at <= $cf::RUNTIME	1965	$self->reset_at <= $cf::RUNTIME
1372	}	1966	}
1373		1967
1374	sub unlink_save {
1375	my ($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	$self->save;
1393	}
1394
1395	sub reset {	1968	sub reset {
1396	my ($self) = @_;	1969	my ($self) = @_;
1397		1970
		1971	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1972
1398	return if $self->players;	1973	return if $self->players;
1399	return if $self->{path}{user_rel};#d#
1400		1974
1401	warn "resetting map ", $self->path;#d#	1975	warn "resetting map ", $self->path;
		1976
		1977	$self->in_memory (cf::MAP_SWAPPED);
		1978
		1979	# need to save uniques path
		1980	unless ($self->{deny_save}) {
		1981	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1982
		1983	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1984	if $uniq;
		1985	}
1402		1986
1403	delete $cf::MAP{$self->path};	1987	delete $cf::MAP{$self->path};
		1988
		1989	$self->clear;
1404		1990
1405	$_->clear_links_to ($self) for values %cf::MAP;	1991	$_->clear_links_to ($self) for values %cf::MAP;
1406		1992
1407	$self->unlink_save;	1993	$self->unlink_save;
1408	$self->destroy;	1994	$self->destroy;
…		…
1411	my $nuke_counter = "aaaa";	1997	my $nuke_counter = "aaaa";
1412		1998
1413	sub nuke {	1999	sub nuke {
1414	my ($self) = @_;	2000	my ($self) = @_;
1415		2001
		2002	delete $cf::MAP{$self->path};
		2003
		2004	$self->unlink_save;
		2005
		2006	bless $self, "cf::map";
		2007	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	2008	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	2009	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	2010	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2011
		2012	$cf::MAP{$self->path} = $self;
		2013
1419	$self->reset; # polite request, might not happen	2014	$self->reset; # polite request, might not happen
1420	}	2015	}
1421		2016
1422	sub customise_for {	2017	=item $maps = cf::map::tmp_maps
1423	my ($map, $ob) = @_;
1424		2018
1425	if ($map->per_player) {	2019	Returns an arrayref with all map paths of currently instantiated and saved
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2020	maps. May block.
		2021
		2022	=cut
		2023
		2024	sub tmp_maps() {
1427	}	2025	[
1428		2026	map {
1429	$map	2027	utf8::decode $_;
		2028	/\.map$/
		2029	? normalise $_
		2030	: ()
		2031	} @{ aio_readdir $TMPDIR or [] }
		2032	]
1430	}	2033	}
1431		2034
1432	sub emergency_save {	2035	=item $maps = cf::map::random_maps
1433	my $freeze_guard = cf::freeze_mainloop;
1434		2036
1435	warn "enter emergency map save\n";	2037	Returns an arrayref with all map paths of currently instantiated and saved
		2038	random maps. May block.
1436		2039
1437	cf::sync_job {	2040	=cut
1438	warn "begin emergency map save\n";
1439	$_->save for values %cf::MAP;
1440	};
1441		2041
1442	warn "end emergency map save\n";	2042	sub random_maps() {
		2043	[
		2044	map {
		2045	utf8::decode $_;
		2046	/\.map$/
		2047	? normalise "?random/$_"
		2048	: ()
		2049	} @{ aio_readdir $RANDOMDIR or [] }
		2050	]
		2051	}
		2052
		2053	=item cf::map::unique_maps
		2054
		2055	Returns an arrayref of paths of all shared maps that have
		2056	instantiated unique items. May block.
		2057
		2058	=cut
		2059
		2060	sub unique_maps() {
		2061	[
		2062	map {
		2063	utf8::decode $_;
		2064	/\.map$/
		2065	? normalise $_
		2066	: ()
		2067	} @{ aio_readdir $UNIQUEDIR or [] }
		2068	]
1443	}	2069	}
1444		2070
1445	package cf;	2071	package cf;
1446		2072
1447	=back	2073	=back
1448		2074
		2075	=head3 cf::object
		2076
		2077	=cut
		2078
		2079	package cf::object;
		2080
		2081	=over 4
		2082
		2083	=item $ob->inv_recursive
		2084
		2085	Returns the inventory of the object _and_ their inventories, recursively.
		2086
		2087	=cut
		2088
		2089	sub inv_recursive_;
		2090	sub inv_recursive_ {
		2091	map { $_, inv_recursive_ $_->inv } @_
		2092	}
		2093
		2094	sub inv_recursive {
		2095	inv_recursive_ inv $_[0]
		2096	}
		2097
		2098	package cf;
		2099
		2100	=back
1449		2101
1450	=head3 cf::object::player	2102	=head3 cf::object::player
1451		2103
1452	=over 4	2104	=over 4
1453		2105
…		…
1467		2119
1468	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2120	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1469		2121
1470	if ($self->{record_replies}) {	2122	if ($self->{record_replies}) {
1471	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2123	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2124
1472	} else {	2125	} else {
		2126	my $pl = $self->contr;
		2127
		2128	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2129	my $diag = $pl->{npc_dialog};
		2130	$diag->{pl}->ext_reply (
		2131	$diag->{id},
		2132	msgtype => "reply",
		2133	msg => $diag->{pl}->expand_cfpod ($msg),
		2134	add_topics => []
		2135	);
		2136
		2137	} else {
1473	$msg = $npc->name . " says: $msg" if $npc;	2138	$msg = $npc->name . " says: $msg" if $npc;
1474	$self->message ($msg, $flags);	2139	$self->message ($msg, $flags);
		2140	}
1475	}	2141	}
1476	}	2142	}
1477		2143
1478	=item $player_object->may ("access")	2144	=item $player_object->may ("access")
1479		2145
…		…
1493		2159
1494	=item $player_object->enter_link	2160	=item $player_object->enter_link
1495		2161
1496	Freezes the player and moves him/her to a special map (C<{link}>).	2162	Freezes the player and moves him/her to a special map (C<{link}>).
1497		2163
1498	The player should be reaosnably safe there for short amounts of time. You	2164	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.	2165	I<MUST> call C<leave_link> as soon as possible, though.
1500		2166
		2167	Will never block.
		2168
1501	=item $player_object->leave_link ($map, $x, $y)	2169	=item $player_object->leave_link ($map, $x, $y)
1502		2170
1503	Moves the player out of the specila link map onto the given map. If the	2171	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	2172	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	2173	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	2174	fails, to the emergency map position.
1507		2175
1508	Might block.	2176	Might block.
1509		2177
1510	=cut	2178	=cut
		2179
		2180	sub link_map {
		2181	unless ($LINK_MAP) {
		2182	$LINK_MAP = cf::map::find "{link}"
		2183	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2184	$LINK_MAP->load;
		2185	}
		2186
		2187	$LINK_MAP
		2188	}
1511		2189
1512	sub cf::object::player::enter_link {	2190	sub cf::object::player::enter_link {
1513	my ($self) = @_;	2191	my ($self) = @_;
1514		2192
1515	$self->deactivate_recursive;	2193	$self->deactivate_recursive;
1516		2194
1517	return if $self->map == $LINK_MAP;	2195	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		2196
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2197	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	2198	if $self->map && $self->map->{path} ne "{link}";
1521		2199
1522	$self->enter_map ($LINK_MAP, 20, 20);	2200	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	2201	}
1524		2202
1525	sub cf::object::player::leave_link {	2203	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	2204	my ($self, $map, $x, $y) = @_;
		2205
		2206	return unless $self->contr->active;
1527		2207
1528	my $link_pos = delete $self->{_link_pos};	2208	my $link_pos = delete $self->{_link_pos};
1529		2209
1530	unless ($map) {	2210	unless ($map) {
1531	# restore original map position	2211	# restore original map position
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	2225	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	2226	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	2227	if $x <=0 && $y <= 0;
1548		2228
1549	$map->load;	2229	$map->load;
		2230	$map->load_diag;
1550		2231
		2232	return unless $self->contr->active;
1551	$self->activate_recursive;	2233	$self->activate_recursive;
		2234
		2235	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552	$self->enter_map ($map, $x, $y);	2236	$self->enter_map ($map, $x, $y);
1553	}	2237	}
1554		2238
1555	cf::player->attach (
1556	on_logout => sub {
1557	my ($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)	2239	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1584		2240
1585	=cut	2241	Moves the player to the given map-path and coordinates by first freezing
		2242	her, loading and preparing them map, calling the provided $check callback
		2243	that has to return the map if sucecssful, and then unfreezes the player on
		2244	the new (success) or old (failed) map position.
1586		2245
		2246	=cut
		2247
		2248	our $GOTOGEN;
		2249
1587	sub cf::object::player::goto_map {	2250	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	2251	my ($self, $path, $x, $y, $check) = @_;
		2252
		2253	# do generation counting so two concurrent goto's will be executed in-order
		2254	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1589		2255
1590	$self->enter_link;	2256	$self->enter_link;
1591		2257
1592	(cf::async {	2258	(async {
1593	$path = new cf::path $path;	2259	my $map = eval {
1594
1595	my $map = cf::map::find $path->as_string;	2260	my $map = cf::map::find $path;
		2261
		2262	if ($map) {
1596	$map = $map->customise_for ($self) if $map;	2263	$map = $map->customise_for ($self);
1597		2264	$map = $check->($map) if $check && $map;
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	2265	} else {
1599	# if $map;
1600
1601	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2266	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2267	}
1602		2268
		2269	$map
		2270	};
		2271
		2272	if ($@) {
		2273	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2274	LOG llevError | logBacktrace, Carp::longmess $@;
		2275	}
		2276
		2277	if ($gen == $self->{_goto_generation}) {
		2278	delete $self->{_goto_generation};
1603	$self->leave_link ($map, $x, $y);	2279	$self->leave_link ($map, $x, $y);
		2280	}
1604	})->prio (1);	2281	})->prio (1);
1605	}	2282	}
1606		2283
1607	=item $player_object->enter_exit ($exit_object)	2284	=item $player_object->enter_exit ($exit_object)
1608		2285
…		…
1610		2287
1611	sub parse_random_map_params {	2288	sub parse_random_map_params {
1612	my ($spec) = @_;	2289	my ($spec) = @_;
1613		2290
1614	my $rmp = { # defaults	2291	my $rmp = { # defaults
1615	xsize => 10,	2292	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2293	ysize => (cf::rndm 15, 40),
		2294	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2295	#layout => string,
1617	};	2296	};
1618		2297
1619	for (split /\n/, $spec) {	2298	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2299	my ($k, $v) = split /\s+/, $_, 2;
1621		2300
…		…
1625	$rmp	2304	$rmp
1626	}	2305	}
1627		2306
1628	sub prepare_random_map {	2307	sub prepare_random_map {
1629	my ($exit) = @_;	2308	my ($exit) = @_;
		2309
		2310	my $guard = cf::lock_acquire "exit_prepare:$exit";
1630		2311
1631	# all this does is basically replace the /! path by	2312	# all this does is basically replace the /! path by
1632	# a new random map path (?random/...) with a seed	2313	# a new random map path (?random/...) with a seed
1633	# that depends on the exit object	2314	# that depends on the exit object
1634		2315
1635	my $rmp = parse_random_map_params $exit->msg;	2316	my $rmp = parse_random_map_params $exit->msg;
1636		2317
1637	if ($exit->map) {	2318	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2319	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2320	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2321	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2322	$rmp->{origin_y} = $exit->y;
1642	}	2323	}
1643		2324
1644	$rmp->{random_seed} ||= $exit->random_seed;	2325	$rmp->{random_seed} ||= $exit->random_seed;
1645		2326
1646	my $data = cf::to_json $rmp;	2327	my $data = cf::to_json $rmp;
1647	my $md5 = Digest::MD5::md5_hex $data;	2328	my $md5 = Digest::MD5::md5_hex $data;
		2329	my $meta = "$RANDOMDIR/$md5.meta";
1648		2330
1649	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2331	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1650	aio_write $fh, 0, (length $data), $data, 0;	2332	aio_write $fh, 0, (length $data), $data, 0;
		2333	undef $fh;
		2334	aio_rename "$meta~", $meta;
1651		2335
1652	$exit->slaying ("?random/$md5");	2336	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2337	$exit->msg (undef);
1654	}	2338	}
1655	}	2339	}
…		…
1657	sub cf::object::player::enter_exit {	2341	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2342	my ($self, $exit) = @_;
1659		2343
1660	return unless $self->type == cf::PLAYER;	2344	return unless $self->type == cf::PLAYER;
1661		2345
		2346	if ($exit->slaying eq "/!") {
		2347	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2348	# the problem is that $exit might not survive long enough
		2349	# so it needs to be done right now, right here
		2350	cf::sync_job { prepare_random_map $exit };
		2351	}
		2352
		2353	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2354	my $hp = $exit->stats->hp;
		2355	my $sp = $exit->stats->sp;
		2356
1662	$self->enter_link;	2357	$self->enter_link;
1663		2358
1664	(cf::async {	2359	(async {
1665	$self->deactivate_recursive; # just to be sure	2360	$self->deactivate_recursive; # just to be sure
1666	unless (eval {	2361	unless (eval {
1667	prepare_random_map $exit	2362	$self->goto ($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		2363
1673	1;	2364	1;
1674	}) {	2365	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2366	$self->message ("Something went wrong deep within the crossfire server. "
1676	. "I'll try to bring you back to the map you were before. "	2367	. "I'll try to bring you back to the map you were before. "
1677	. "Please report this to the dungeon master",	2368	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2369	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2370
1680	warn "ERROR in enter_exit: $@";	2371	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2372	$self->leave_link;
1682	}	2373	}
1683	})->prio (1);	2374	})->prio (1);
…		…
1696		2387
1697	sub cf::client::send_drawinfo {	2388	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2389	my ($self, $text, $flags) = @_;
1699		2390
1700	utf8::encode $text;	2391	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2392	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2393	}
1703		2394
		2395	=item $client->send_msg ($color, $type, $msg, [extra...])
		2396
		2397	Send a drawinfo or msg packet to the client, formatting the msg for the
		2398	client if neccessary. C<$type> should be a string identifying the type of
		2399	the message, with C<log> being the default. If C<$color> is negative, suppress
		2400	the message unless the client supports the msg packet.
		2401
		2402	=cut
		2403
		2404	sub cf::client::send_msg {
		2405	my ($self, $color, $type, $msg, @extra) = @_;
		2406
		2407	$msg = $self->pl->expand_cfpod ($msg);
		2408
		2409	if ($self->can_msg) {
		2410	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2411	} else {
		2412	# replace some tags by gcfclient-compatible ones
		2413	for ($msg) {
		2414	1 while
		2415	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2416	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2417	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2418	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2419	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2420	}
		2421
		2422	if ($color >= 0) {
		2423	if (0 && $msg =~ /\[/) {
		2424	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2425	} else {
		2426	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2427	$self->send_packet ("drawinfo $color $msg")
		2428	}
		2429	}
		2430	}
		2431	}
		2432
		2433	=item $client->ext_event ($type, %msg)
		2434
		2435	Sends an ext event to the client.
		2436
		2437	=cut
		2438
		2439	sub cf::client::ext_event($$%) {
		2440	my ($self, $type, %msg) = @_;
		2441
		2442	$msg{msgtype} = "event_$type";
		2443	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2444	}
1704		2445
1705	=item $success = $client->query ($flags, "text", \&cb)	2446	=item $success = $client->query ($flags, "text", \&cb)
1706		2447
1707	Queues a query to the client, calling the given callback with	2448	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>,	2449	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>.	2450	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1710		2451
1711	Queries can fail, so check the return code. Or don't, as queries will become	2452	Queries can fail, so check the return code. Or don't, as queries will
1712	reliable at some point in the future.	2453	become reliable at some point in the future.
1713		2454
1714	=cut	2455	=cut
1715		2456
1716	sub cf::client::query {	2457	sub cf::client::query {
1717	my ($self, $flags, $text, $cb) = @_;	2458	my ($self, $flags, $text, $cb) = @_;
…		…
1725	utf8::encode $text;	2466	utf8::encode $text;
1726	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2467	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1727		2468
1728	$self->send_packet ($self->{query_queue}[0][0])	2469	$self->send_packet ($self->{query_queue}[0][0])
1729	if @{ $self->{query_queue} } == 1;	2470	if @{ $self->{query_queue} } == 1;
		2471
		2472	1
1730	}	2473	}
1731		2474
1732	cf::client->attach (	2475	cf::client->attach (
		2476	on_connect => sub {
		2477	my ($ns) = @_;
		2478
		2479	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2480	},
1733	on_reply => sub {	2481	on_reply => sub {
1734	my ($ns, $msg) = @_;	2482	my ($ns, $msg) = @_;
1735		2483
1736	# this weird shuffling is so that direct followup queries	2484	# this weird shuffling is so that direct followup queries
1737	# get handled first	2485	# get handled first
1738	my $queue = delete $ns->{query_queue}	2486	my $queue = delete $ns->{query_queue}
1739	or return; # be conservative, not sure how that can happen, but we saw a crash here	2487	or return; # be conservative, not sure how that can happen, but we saw a crash here
1740		2488
1741	(shift @$queue)->[1]->($msg);	2489	(shift @$queue)->[1]->($msg);
		2490	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		2491
1743	push @{ $ns->{query_queue} }, @$queue;	2492	push @{ $ns->{query_queue} }, @$queue;
1744		2493
1745	if (@{ $ns->{query_queue} } == @$queue) {	2494	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	2495	if (@$queue) {
…		…
1748	} else {	2497	} else {
1749	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2498	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1750	}	2499	}
1751	}	2500	}
1752	},	2501	},
		2502	on_exticmd => sub {
		2503	my ($ns, $buf) = @_;
		2504
		2505	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2506
		2507	if (ref $msg) {
		2508	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2509	if (my %reply = $cb->($ns, $msg)) {
		2510	$reply{msgid} = $msg->{msgid};
		2511	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2512	}
		2513	}
		2514	} else {
		2515	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2516	}
		2517
		2518	cf::override;
		2519	},
1753	);	2520	);
1754		2521
1755	=item $client->coro (\&cb)	2522	=item $client->async (\&cb)
1756		2523
1757	Create a new coroutine, running the specified callback. The coroutine will	2524	Create a new coroutine, running the specified callback. The coroutine will
1758	be automatically cancelled when the client gets destroyed (e.g. on logout,	2525	be automatically cancelled when the client gets destroyed (e.g. on logout,
1759	or loss of connection).	2526	or loss of connection).
1760		2527
1761	=cut	2528	=cut
1762		2529
1763	sub cf::client::coro {	2530	sub cf::client::async {
1764	my ($self, $cb) = @_;	2531	my ($self, $cb) = @_;
1765		2532
1766	my $coro = &cf::async ($cb);	2533	my $coro = &Coro::async ($cb);
1767		2534
1768	$coro->on_destroy (sub {	2535	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	2536	delete $self->{_coro}{$coro+0};
1770	});	2537	});
1771		2538
…		…
1804		2571
1805	# here we export the classes and methods available to script code	2572	# here we export the classes and methods available to script code
1806		2573
1807	=pod	2574	=pod
1808		2575
1809	The following fucntions and emthods are available within a safe environment:	2576	The following functions and methods are available within a safe environment:
1810		2577
1811	cf::object contr pay_amount pay_player map	2578	cf::object contr pay_amount pay_player map
1812	cf::object::player player	2579	cf::object::player player
1813	cf::player peaceful	2580	cf::player peaceful
1814	cf::map trigger	2581	cf::map trigger
…		…
1895	=back	2662	=back
1896		2663
1897	=cut	2664	=cut
1898		2665
1899	#############################################################################	2666	#############################################################################
		2667	# the server's init and main functions
1900		2668
1901	=head2 EXTENSION DATABASE SUPPORT	2669	sub load_facedata($) {
		2670	my ($path) = @_;
1902		2671
1903	Crossfire maintains a very simple database for extension use. It can	2672	warn "loading facedata from $path\n";
1904	currently store anything that can be serialised using Storable, which
1905	excludes objects.
1906		2673
1907	The parameter C<$family> should best start with the name of the extension	2674	my $facedata;
1908	using it, it should be unique.	2675	0 < aio_load $path, $facedata
		2676	or die "$path: $!";
1909		2677
1910	=over 4	2678	$facedata = Coro::Storable::thaw $facedata;
1911		2679
1912	=item $hashref = cf::db_get $family	2680	$facedata->{version} == 2
		2681	or cf::cleanup "$path: version mismatch, cannot proceed.";
1913		2682
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	}	2683	{
		2684	my $faces = $facedata->{faceinfo};
1950		2685
1951	my $pid;	2686	while (my ($face, $info) = each %$faces) {
1952		2687	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1953	sub db_save() {	2688	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1954	waitpid $pid, 0 if $pid;	2689	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1955	if (0 == ($pid = fork)) {	2690	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1956	$DB->{_meta}{version} = 1;	2691	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]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993
1994	cf::global->attach (
1995	prio => 10000,
1996	on_cleanup => sub {
1997	db_sync;
1998	},	2692	}
1999	);
2000	}
2001		2693
2002	#############################################################################	2694	while (my ($face, $info) = each %$faces) {
2003	# the server's main()	2695	next unless $info->{smooth};
		2696	my $idx = cf::face::find $face
		2697	or next;
		2698	if (my $smooth = cf::face::find $info->{smooth}) {
		2699	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2700	} else {
		2701	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2702	}
		2703	Coro::cede;
		2704	}
		2705	}
		2706
		2707	{
		2708	my $anims = $facedata->{animinfo};
		2709
		2710	while (my ($anim, $info) = each %$anims) {
		2711	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2712	Coro::cede;
		2713	}
		2714
		2715	cf::anim::invalidate_all; # d'oh
		2716	}
		2717
		2718	1
		2719	}
		2720
		2721	sub reload_regions {
		2722	load_resource_file "$MAPDIR/regions"
		2723	or die "unable to load regions file\n";
		2724	}
		2725
		2726	sub reload_facedata {
		2727	load_facedata "$DATADIR/facedata"
		2728	or die "unable to load facedata\n";
		2729	}
		2730
		2731	sub reload_archetypes {
		2732	load_resource_file "$DATADIR/archetypes"
		2733	or die "unable to load archetypes\n";
		2734	#d# NEED to laod twice to resolve forward references
		2735	# this really needs to be done in an extra post-pass
		2736	# (which needs to be synchronous, so solve it differently)
		2737	load_resource_file "$DATADIR/archetypes"
		2738	or die "unable to load archetypes\n";
		2739	}
		2740
		2741	sub reload_treasures {
		2742	load_resource_file "$DATADIR/treasures"
		2743	or die "unable to load treasurelists\n";
		2744	}
		2745
		2746	sub reload_resources {
		2747	warn "reloading resource files...\n";
		2748
		2749	reload_regions;
		2750	reload_facedata;
		2751	#reload_archetypes;#d#
		2752	reload_archetypes;
		2753	reload_treasures;
		2754
		2755	warn "finished reloading resource files\n";
		2756	}
		2757
		2758	sub init {
		2759	reload_resources;
		2760	}
2004		2761
2005	sub cfg_load {	2762	sub cfg_load {
2006	open my $fh, "<:utf8", cf::confdir . "/config"	2763	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	2764	or return;
2008		2765
2009	local $/;	2766	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	2767	*CFG = YAML::Syck::Load <$fh>;
2011		2768
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2769	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013		2770
		2771	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2772	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2773
2014	if (exists $CFG{mlockall}) {	2774	if (exists $CFG{mlockall}) {
2015	eval {	2775	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	2776	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	2777	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	2778	};
2019	warn $@ if $@;	2779	warn $@ if $@;
2020	}	2780	}
2021	}	2781	}
2022		2782
2023	sub main {	2783	sub main {
2024	# we must not ever block the main coroutine	2784	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	2785	local $Coro::idle = sub {
2026	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2786	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2027	(Coro::unblock_sub {	2787	(async {
2028	Event::one_event;	2788	Event::one_event;
2029	})->();	2789	})->prio (Coro::PRIO_MAX);
2030	};	2790	};
2031		2791
2032	cfg_load;	2792	cfg_load;
2033	db_load;	2793	db_init;
2034	load_extensions;	2794	load_extensions;
		2795
		2796	$TICK_WATCHER->start;
2035	Event::loop;	2797	Event::loop;
2036	}	2798	}
2037		2799
2038	#############################################################################	2800	#############################################################################
2039	# initialisation	2801	# initialisation and cleanup
2040		2802
		2803	# install some emergency cleanup handlers
		2804	BEGIN {
		2805	for my $signal (qw(INT HUP TERM)) {
		2806	Event->signal (
		2807	reentrant => 0,
		2808	data => WF_AUTOCANCEL,
		2809	signal => $signal,
		2810	prio => 0,
		2811	cb => sub {
		2812	cf::cleanup "SIG$signal";
		2813	},
		2814	);
		2815	}
		2816	}
		2817
		2818	sub write_runtime {
		2819	my $runtime = "$LOCALDIR/runtime";
		2820
		2821	# first touch the runtime file to show we are still running:
		2822	# the fsync below can take a very very long time.
		2823
		2824	IO::AIO::aio_utime $runtime, undef, undef;
		2825
		2826	my $guard = cf::lock_acquire "write_runtime";
		2827
		2828	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2829	or return;
		2830
		2831	my $value = $cf::RUNTIME + 90 + 10;
		2832	# 10 is the runtime save interval, for a monotonic clock
		2833	# 60 allows for the watchdog to kill the server.
		2834
		2835	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2836	and return;
		2837
		2838	# always fsync - this file is important
		2839	aio_fsync $fh
		2840	and return;
		2841
		2842	# touch it again to show we are up-to-date
		2843	aio_utime $fh, undef, undef;
		2844
		2845	close $fh
		2846	or return;
		2847
		2848	aio_rename "$runtime~", $runtime
		2849	and return;
		2850
		2851	warn "runtime file written.\n";
		2852
		2853	1
		2854	}
		2855
		2856	sub emergency_save() {
		2857	my $freeze_guard = cf::freeze_mainloop;
		2858
		2859	warn "enter emergency perl save\n";
		2860
		2861	cf::sync_job {
		2862	# use a peculiar iteration method to avoid tripping on perl
		2863	# refcount bugs in for. also avoids problems with players
		2864	# and maps saved/destroyed asynchronously.
		2865	warn "begin emergency player save\n";
		2866	for my $login (keys %cf::PLAYER) {
		2867	my $pl = $cf::PLAYER{$login} or next;
		2868	$pl->valid or next;
		2869	$pl->save;
		2870	}
		2871	warn "end emergency player save\n";
		2872
		2873	warn "begin emergency map save\n";
		2874	for my $path (keys %cf::MAP) {
		2875	my $map = $cf::MAP{$path} or next;
		2876	$map->valid or next;
		2877	$map->save;
		2878	}
		2879	warn "end emergency map save\n";
		2880
		2881	warn "begin emergency database checkpoint\n";
		2882	BDB::db_env_txn_checkpoint $DB_ENV;
		2883	warn "end emergency database checkpoint\n";
		2884	};
		2885
		2886	warn "leave emergency perl save\n";
		2887	}
		2888
		2889	sub post_cleanup {
		2890	my ($make_core) = @_;
		2891
		2892	warn Carp::longmess "post_cleanup backtrace"
		2893	if $make_core;
		2894	}
		2895
2041	sub reload() {	2896	sub do_reload_perl() {
2042	# can/must only be called in main	2897	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	2898	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	2899	warn "can only reload from main coroutine";
2045	return;	2900	return;
2046	}	2901	}
2047		2902
2048	warn "reloading...";	2903	warn "reloading...";
2049		2904
2050	my $guard = freeze_mainloop;	2905	warn "entering sync_job";
		2906
		2907	cf::sync_job {
		2908	cf::write_runtime; # external watchdog should not bark
2051	cf::emergency_save;	2909	cf::emergency_save;
		2910	cf::write_runtime; # external watchdog should not bark
2052		2911
2053	eval {	2912	warn "syncing database to disk";
		2913	BDB::db_env_txn_checkpoint $DB_ENV;
		2914
2054	# if anything goes wrong in here, we should simply crash as we already saved	2915	# if anything goes wrong in here, we should simply crash as we already saved
2055		2916
2056	# cancel all watchers	2917	warn "cancelling all WF_AUTOCANCEL watchers";
2057	for (Event::all_watchers) {	2918	for (Event::all_watchers) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	2919	$_->cancel if $_->data & WF_AUTOCANCEL;
2059	}	2920	}
2060		2921
		2922	warn "flushing outstanding aio requests";
		2923	for (;;) {
		2924	BDB::flush;
		2925	IO::AIO::flush;
		2926	Coro::cede;
		2927	last unless IO::AIO::nreqs || BDB::nreqs;
		2928	warn "iterate...";
		2929	}
		2930
		2931	++$RELOAD;
		2932
2061	# cancel all extension coros	2933	warn "cancelling all extension coros";
2062	$_->cancel for values %EXT_CORO;	2934	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();	2935	%EXT_CORO = ();
2064		2936
2065	# unload all extensions	2937	warn "removing commands";
2066	for (@exts) {	2938	%COMMAND = ();
		2939
		2940	warn "removing ext/exti commands";
		2941	%EXTCMD = ();
		2942	%EXTICMD = ();
		2943
		2944	warn "unloading/nuking all extensions";
		2945	for my $pkg (@EXTS) {
2067	warn "unloading <$_>";	2946	warn "... unloading $pkg";
2068	unload_extension $_;	2947
		2948	if (my $cb = $pkg->can ("unload")) {
		2949	eval {
		2950	$cb->($pkg);
		2951	1
		2952	} or warn "$pkg unloaded, but with errors: $@";
2069	}	2953	}
2070		2954
		2955	warn "... nuking $pkg";
		2956	Symbol::delete_package $pkg;
		2957	}
		2958
2071	# unload all modules loaded from $LIBDIR	2959	warn "unloading all perl modules loaded from $LIBDIR";
2072	while (my ($k, $v) = each %INC) {	2960	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2961	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074		2962
2075	warn "removing <$k>";	2963	warn "... unloading $k";
2076	delete $INC{$k};	2964	delete $INC{$k};
2077		2965
2078	$k =~ s/\.pm$//;	2966	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;	2967	$k =~ s/\//::/g;
2080		2968
…		…
2083	}	2971	}
2084		2972
2085	Symbol::delete_package $k;	2973	Symbol::delete_package $k;
2086	}	2974	}
2087		2975
2088	# sync database to disk
2089	cf::db_sync;
2090	IO::AIO::flush;
2091
2092	# get rid of safe::, as good as possible	2976	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	2977	Symbol::delete_package "safe::$_"
2094	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2978	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2095		2979
2096	# remove register_script_function callbacks
2097	# TODO
2098
2099	# unload cf.pm "a bit"	2980	warn "unloading cf.pm \"a bit\"";
2100	delete $INC{"cf.pm"};	2981	delete $INC{"cf.pm"};
		2982	delete $INC{"cf/pod.pm"};
2101		2983
2102	# don't, removes xs symbols, too,	2984	# don't, removes xs symbols, too,
2103	# and global variables created in xs	2985	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	2986	#Symbol::delete_package __PACKAGE__;
2105		2987
2106	# reload cf.pm	2988	warn "unload completed, starting to reload now";
		2989
2107	warn "reloading cf.pm";	2990	warn "reloading cf.pm";
2108	require cf;	2991	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2992	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110		2993
2111	# load config and database again	2994	warn "loading config and database again";
2112	cf::cfg_load;	2995	cf::cfg_load;
2113	cf::db_load;
2114		2996
2115	# load extensions
2116	warn "load extensions";	2997	warn "loading extensions";
2117	cf::load_extensions;	2998	cf::load_extensions;
2118		2999
2119	# reattach attachments to objects	3000	warn "reattaching attachments to objects/players";
2120	warn "reattach";	3001	_global_reattach; # objects, sockets
2121	_global_reattach;	3002	warn "reattaching attachments to maps";
2122	};	3003	reattach $_ for values %MAP;
		3004	warn "reattaching attachments to players";
		3005	reattach $_ for values %PLAYER;
2123		3006
2124	if ($@) {	3007	warn "leaving sync_job";
		3008
		3009	1
		3010	} or do {
2125	warn $@;	3011	warn $@;
2126	warn "error while reloading, exiting.";	3012	warn "error while reloading, exiting.";
2127	exit 1;	3013	exit 1;
2128	}	3014	};
2129		3015
2130	warn "reloaded successfully";	3016	warn "reloaded";
2131	};	3017	};
2132		3018
2133	#############################################################################	3019	our $RELOAD_WATCHER; # used only during reload
2134		3020
2135	unless ($LINK_MAP) {	3021	sub reload_perl() {
2136	$LINK_MAP = cf::map::new;	3022	# doing reload synchronously and two reloads happen back-to-back,
		3023	# coro crashes during coro_state_free->destroy here.
2137		3024
2138	$LINK_MAP->width (41);	3025	$RELOAD_WATCHER ||= Event->timer (
2139	$LINK_MAP->height (41);	3026	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,	3027	after => 0,
		3028	data => WF_AUTOCANCEL,
2148	cb => sub {	3029	cb => sub {
2149	$_[0]->w->cancel;	3030	do_reload_perl;
2150		3031	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	});	3032	},
2169		3033	);
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	3034	}
2175
2176	register "<global>", __PACKAGE__;
2177		3035
2178	register_command "reload" => sub {	3036	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	3037	my ($who, $arg) = @_;
2180		3038
2181	if ($who->flag (FLAG_WIZ)) {	3039	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	3040	$who->message ("reloading server.");
		3041	async { reload_perl };
2185	}	3042	}
2186	};	3043	};
2187		3044
2188	unshift @INC, $LIBDIR;	3045	unshift @INC, $LIBDIR;
2189		3046
		3047	my $bug_warning = 0;
		3048
		3049	our @WAIT_FOR_TICK;
		3050	our @WAIT_FOR_TICK_BEGIN;
		3051
		3052	sub wait_for_tick {
		3053	return unless $TICK_WATCHER->is_active;
		3054	return if $Coro::current == $Coro::main;
		3055
		3056	my $signal = new Coro::Signal;
		3057	push @WAIT_FOR_TICK, $signal;
		3058	$signal->wait;
		3059	}
		3060
		3061	sub wait_for_tick_begin {
		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_BEGIN, $signal;
		3067	$signal->wait;
		3068	}
		3069
		3070	my $min = 1e6;#d#
		3071	my $avg = 10;
2190	$TICK_WATCHER = Event->timer (	3072	$TICK_WATCHER = Event->timer (
2191	reentrant => 0,	3073	reentrant => 0,
		3074	parked => 1,
2192	prio => 0,	3075	prio => 0,
2193	at => $NEXT_TICK || $TICK,	3076	at => $NEXT_TICK || $TICK,
2194	data => WF_AUTOCANCEL,	3077	data => WF_AUTOCANCEL,
2195	cb => sub {	3078	cb => sub {
		3079	if ($Coro::current != $Coro::main) {
		3080	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3081	unless ++$bug_warning > 10;
		3082	return;
		3083	}
		3084
		3085	$NOW = $tick_start = Event::time;
		3086
2196	cf::server_tick; # one server iteration	3087	cf::server_tick; # one server iteration
		3088
		3089	0 && sync_job {#d#
		3090	for(1..10) {
		3091	my $t = Event::time;
		3092	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3093	or die;
		3094
		3095	$map->width (50);
		3096	$map->height (50);
		3097	$map->alloc;
		3098	$map->_load_objects ("/tmp/x.map", 1);
		3099	my $t = Event::time - $t;
		3100
		3101	#next unless $t < 0.0013;#d#
		3102	if ($t < $min) {
		3103	$min = $t;
		3104	}
		3105	$avg = $avg * 0.99 + $t * 0.01;
		3106	}
		3107	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3108	exit 0;
		3109	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3110	};
		3111
2197	$RUNTIME += $TICK;	3112	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;	3113	$NEXT_TICK += $TICK;
2199		3114
		3115	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3116	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3117	Coro::async_pool {
		3118	write_runtime
		3119	or warn "ERROR: unable to write runtime file: $!";
		3120	};
		3121	}
		3122
		3123	# my $AFTER = Event::time;
		3124	# warn $AFTER - $NOW;#d#
		3125
		3126	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3127	$sig->send;
		3128	}
		3129	while (my $sig = shift @WAIT_FOR_TICK) {
		3130	$sig->send;
		3131	}
		3132
		3133	$NOW = Event::time;
		3134
2200	# if we are delayed by four ticks or more, skip them all	3135	# if we are delayed by four ticks or more, skip them all
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3136	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2202		3137
2203	$TICK_WATCHER->at ($NEXT_TICK);	3138	$TICK_WATCHER->at ($NEXT_TICK);
2204	$TICK_WATCHER->start;	3139	$TICK_WATCHER->start;
		3140
		3141	$LOAD = ($NOW - $tick_start) / $TICK;
		3142	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3143
		3144	_post_tick;
		3145
		3146
2205	},	3147	},
2206	);	3148	);
2207		3149
		3150	{
2208	IO::AIO::max_poll_time $TICK * 0.2;	3151	BDB::max_poll_time $TICK * 0.1;
2209		3152	$BDB_POLL_WATCHER = Event->io (
2210	Event->io (	3153	reentrant => 0,
2211	fd => IO::AIO::poll_fileno,	3154	fd => BDB::poll_fileno,
2212	poll => 'r',	3155	poll => 'r',
2213	prio => 5,	3156	prio => 0,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,	3157	data => WF_AUTOCANCEL,
2220	after => 0,	3158	cb => \&BDB::poll_cb,
2221	interval => 10,	3159	);
2222	cb => sub {	3160	BDB::min_parallel 8;
2223	(Coro::unblock_sub {	3161
2224	write_runtime	3162	BDB::set_sync_prepare {
2225	or warn "ERROR: unable to write runtime file: $!";	3163	my $status;
		3164	my $current = $Coro::current;
		3165	(
		3166	sub {
		3167	$status = $!;
		3168	$current->ready; undef $current;
		3169	},
		3170	sub {
		3171	Coro::schedule while defined $current;
		3172	$! = $status;
		3173	},
		3174	)
		3175	};
		3176
		3177	unless ($DB_ENV) {
		3178	$DB_ENV = BDB::db_env_create;
		3179
		3180	cf::sync_job {
		3181	eval {
		3182	BDB::db_env_open
		3183	$DB_ENV,
		3184	$BDBDIR,
		3185	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3186	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3187	0666;
		3188
		3189	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3190
		3191	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3192	$DB_ENV->set_lk_detect;
		3193	};
		3194
		3195	cf::cleanup "db_env_open(db): $@" if $@;
2226	})->();	3196	};
2227	},	3197	}
2228	);	3198	}
		3199
		3200	{
		3201	IO::AIO::min_parallel 8;
		3202
		3203	undef $Coro::AIO::WATCHER;
		3204	IO::AIO::max_poll_time $TICK * 0.1;
		3205	$AIO_POLL_WATCHER = Event->io (
		3206	reentrant => 0,
		3207	data => WF_AUTOCANCEL,
		3208	fd => IO::AIO::poll_fileno,
		3209	poll => 'r',
		3210	prio => 6,
		3211	cb => \&IO::AIO::poll_cb,
		3212	);
		3213	}
		3214
		3215	my $_log_backtrace;
		3216
		3217	sub _log_backtrace {
		3218	my ($msg, @addr) = @_;
		3219
		3220	$msg =~ s/\n//;
		3221
		3222	# limit the # of concurrent backtraces
		3223	if ($_log_backtrace < 2) {
		3224	++$_log_backtrace;
		3225	async {
		3226	my @bt = fork_call {
		3227	@addr = map { sprintf "%x", $_ } @addr;
		3228	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3229	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3230	or die "addr2line: $!";
		3231
		3232	my @funcs;
		3233	my @res = <$fh>;
		3234	chomp for @res;
		3235	while (@res) {
		3236	my ($func, $line) = splice @res, 0, 2, ();
		3237	push @funcs, "[$func] $line";
		3238	}
		3239
		3240	@funcs
		3241	};
		3242
		3243	LOG llevInfo, "[ABT] $msg\n";
		3244	LOG llevInfo, "[ABT] $_\n" for @bt;
		3245	--$_log_backtrace;
		3246	};
		3247	} else {
		3248	LOG llevInfo, "[ABT] $msg\n";
		3249	LOG llevInfo, "[ABT] [suppressed]\n";
		3250	}
		3251	}
		3252
		3253	# load additional modules
		3254	use cf::pod;
2229		3255
2230	END { cf::emergency_save }	3256	END { cf::emergency_save }
2231		3257
2232	1	3258	1
2233		3259

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