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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.133 by root, Thu Jan 4 16:19:32 2007 UTC vs.
Revision 1.270 by root, Sat May 26 15:44:06 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	129	every server tick.
91		130
92	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		206
146	$Event::DIED = sub {	207	$Event::DIED = sub {
147	warn "error in event callback: @_";	208	warn "error in event callback: @_";
148	};	209	};
149		210
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
155		212
156	=over 4	213	=over 4
157		214
158	=cut	215	=item dumpval $ref
159		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
161		239
162	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
163		241
164	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
165		243
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
174		245
175	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
176		247
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183
184	=item my $guard = cf::guard { BLOCK }
185
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
206	=item cf::lock_wait $string	248	=item cf::lock_wait $string
207		249
208	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
209		251
210	=item my $lock = cf::lock_acquire $string	252	=item my $lock = cf::lock_acquire $string
211		253
212	Wait until the given lock is available and then acquires it and returns	254	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,	255	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	256	for example when the coroutine gets canceled), the lock is automatically
215	returned.	257	returned.
216		258
217	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
219		265
220	=cut	266	=cut
221		267
222	our %LOCK;	268	our %LOCK;
223		269
…		…
237	# wait, to be sure we are not locked	283	# wait, to be sure we are not locked
238	lock_wait $key;	284	lock_wait $key;
239		285
240	$LOCK{$key} = [];	286	$LOCK{$key} = [];
241		287
242	cf::guard {	288	Coro::guard {
243	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
245	}	291	}
246	}	292	}
247		293
248	=item cf::async { BLOCK }	294	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) = @_;	295	my ($key) = @_;
257		296
258	Coro::async {	297	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	298	}
263		299
264	sub freeze_mainloop {	300	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
266		302
267	my $guard = guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
268	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
269	$guard	307	$guard
270	}	308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
271		319
272	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
273		321
274	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
275	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
284		332
285	sub sync_job(&) {	333	sub sync_job(&) {
286	my ($job) = @_;	334	my ($job) = @_;
287		335
288	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
289	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
291		341
292	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	343	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	344	my $freeze_guard = freeze_mainloop;
295		345
296	my $busy = 1;	346	my $busy = 1;
297	my @res;	347	my @res;
298		348
299	(Coro::async {	349	(async {
300	@res = eval { $job->() };	350	@res = eval { $job->() };
301	warn $@ if $@;	351	warn $@ if $@;
302	undef $busy;	352	undef $busy;
303	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
304		354
305	while ($busy) {	355	while ($busy) {
306	Coro::cede_notself;	356	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	357	}
		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
309		365
310	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
311	} else {	367	} else {
312	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
313		369
314	$job->()	370	$job->()
315	}	371	}
316	}	372	}
317		373
318	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
319		375
320	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
322		378
323	=cut	379	=cut
324		380
325	sub coro(&) {	381	sub async_ext(&) {
326	my $cb = shift;	382	my $cb = shift;
327		383
328	my $coro = &cf::async ($cb);	384	my $coro = &Coro::async ($cb);
329		385
330	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
332	});	388	});
333	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
334		390
335	$coro	391	$coro
336	}	392	}
337		393
338	sub write_runtime {	394	sub write_runtime {
339	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
340		405
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342	or return;	407	or return;
343		408
		409	my $value = $cf::RUNTIME + 90 + 10;
344	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;	414	and return;
347		415
		416	# always fsync - this file is important
348	aio_fsync $fh	417	aio_fsync $fh
349	and return;	418	and return;
350		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
351	close $fh	423	close $fh
352	or return;	424	or return;
353		425
354	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
355	and return;	427	and return;
356		428
		429	warn "runtime file written.\n";#d#
		430
357	1	431	1
358	}	432	}
359		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
360	=back	445	=back
361		446
362	=cut	447	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($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		448
484	#############################################################################	449	#############################################################################
485		450
486	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
487		452
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	579	our @CB_MAP = ();
615		580
616	my %attachment;	581	my %attachment;
617		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
618	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
620		591
621	use sort 'stable';	592	use sort 'stable';
622		593
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
657		628
658	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		633
663	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	635	my $pkg = shift @arg;
665		636
666	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
707	if (ref $_[0]) {	678	if (ref $_[0]) {
708	_object_attach @_;	679	_object_attach @_;
709	} else {	680	} else {
710	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
711	}	682	}
		683	_recalc_want;
712	};	684	};
713		685
714	# all those should be optimised	686	# all those should be optimised
715	sub cf::attachable::detach {	687	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
720	reattach ($obj);	692	reattach ($obj);
721	} else {	693	} else {
722	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
723	}	695	}
		696	_recalc_want;
724	};	697	};
725		698
726	sub cf::attachable::attached {	699	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
728		701
…		…
793	# object support	766	# object support
794		767
795	sub reattach {	768	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		773
799	my $registry = $obj->registry;	774	my $registry = $obj->registry;
800		775
801	@$registry = ();	776	@$registry = ();
802		777
…		…
849	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
850		825
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	830	close $fh;
856		831
857	if (@$objs) {	832	if (@$objs) {
858	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
859	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	838	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
865	}	840	}
866	} else {	841	} else {
867	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
934	=cut	909	=cut
935		910
936	sub register_extcmd {	911	sub register_extcmd {
937	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
938		913
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
943	}	915	}
944		916
945	cf::player->attach (	917	cf::player->attach (
946	on_command => sub {	918	on_command => sub {
947	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
960		932
961	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
962		934
963	if (ref $msg) {	935	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	939	}
968	}	940	}
969	} else {	941	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		944
973	cf::override;	945	cf::override;
974	},	946	},
975	);	947	);
976		948
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	949	sub load_extension {
984	my ($path) = @_;	950	my ($path) = @_;
985		951
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;	953	my $base = $1;
988	my $pkg = $1;	954	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
991		957
992	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
993		959
994	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
995	or die "$path: $!";	961	or die "$path: $!";
996		962
997	my $source =	963	my $source =
998	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
1001	. "\n};\n1";	967	. "\n};\n1";
1002		968
1003	eval $source	969	unless (eval $source) {
1004	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
1005	: "extension disabled.\n";	971	: "extension disabled.\n";
1006		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007	push @exts, $pkg;	973	warn $@;
1008	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
1009		975	exit 1;
1010	# no strict 'refs';	976	}
1011	# @{"$pkg\::ISA"} = ext::;	977	die $@;
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	# }	978	}
1026		979
1027	# remove commands	980	push @EXTS, $pkg;
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	}	981	}
1052		982
1053	sub load_extensions {	983	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	985	next unless -r $ext;
…		…
1059	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1060	}	990	}
1061	}	991	}
1062		992
1063	#############################################################################	993	#############################################################################
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		994
1101	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1102		996
1103	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1104		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1105	=head3 cf::player	1005	=head3 cf::player
1106		1006
1107	=over 4	1007	=over 4
1108		1008
1109	=item cf::player::exists $login	1009	=item cf::player::find $login
1110		1010
1111	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1112		1012
1113	=cut	1013	=cut
1114		1014
1115	sub cf::player::exists($) {	1015	sub playerdir($) {
1116	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1118	}	1018	}
1119		1019
		1020	sub path($) {
		1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1022
		1023	(playerdir $login) . "/playerdata"
		1024	}
		1025
		1026	sub find_active($) {
		1027	$cf::PLAYER{$_[0]}
		1028	and $cf::PLAYER{$_[0]}->active
		1029	and $cf::PLAYER{$_[0]}
		1030	}
		1031
		1032	sub exists($) {
		1033	my ($login) = @_;
		1034
		1035	$cf::PLAYER{$login}
		1036	or cf::sync_job { !aio_stat path $login }
		1037	}
		1038
		1039	sub find($) {
		1040	return $cf::PLAYER{$_[0]} || do {
		1041	my $login = $_[0];
		1042
		1043	my $guard = cf::lock_acquire "user_find:$login";
		1044
		1045	$cf::PLAYER{$_[0]} || do {
		1046	# rename old playerfiles to new ones
		1047	#TODO: remove when no longer required
		1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1051	aio_unlink +(playerdir $login) . "/$login.pl";
		1052
		1053	my $pl = load_pl path $login
		1054	or return;
		1055	$cf::PLAYER{$login} = $pl
		1056	}
		1057	}
		1058	}
		1059
		1060	sub save($) {
		1061	my ($pl) = @_;
		1062
		1063	return if $pl->{deny_save};
		1064
		1065	my $path = path $pl;
		1066	my $guard = cf::lock_acquire "user_save:$path";
		1067
		1068	return if $pl->{deny_save};
		1069
		1070	aio_mkdir playerdir $pl, 0770;
		1071	$pl->{last_save} = $cf::RUNTIME;
		1072
		1073	$pl->save_pl ($path);
		1074	Coro::cede;
		1075	}
		1076
		1077	sub new($) {
		1078	my ($login) = @_;
		1079
		1080	my $self = create;
		1081
		1082	$self->ob->name ($login);
		1083	$self->{deny_save} = 1;
		1084
		1085	$cf::PLAYER{$login} = $self;
		1086
		1087	$self
		1088	}
		1089
		1090	=item $pl->quit_character
		1091
		1092	Nukes the player without looking back. If logged in, the connection will
		1093	be destroyed. May block for a long time.
		1094
		1095	=cut
		1096
		1097	sub quit_character {
		1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
		1101
		1102	$pl->{deny_save} = 1;
		1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1104
		1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1106	$pl->deactivate;
		1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1108	$pl->ns->destroy if $pl->ns;
		1109
		1110	my $path = playerdir $pl;
		1111	my $temp = "$path~$cf::RUNTIME~deleting~";
		1112	aio_rename $path, $temp;
		1113	delete $cf::PLAYER{$pl->ob->name};
		1114	$pl->destroy;
		1115
		1116	my $prefix = qr<^~\Q$name\E/>;
		1117
		1118	# nuke player maps
		1119	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1120
		1121	IO::AIO::aio_rmtree $temp;
		1122	}
		1123
		1124	=item $pl->kick
		1125
		1126	Kicks a player out of the game. This destroys the connection.
		1127
		1128	=cut
		1129
		1130	sub kick {
		1131	my ($pl, $kicker) = @_;
		1132
		1133	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1134	$pl->killer ("kicked");
		1135	$pl->ns->destroy;
		1136	}
		1137
		1138	=item cf::player::list_logins
		1139
		1140	Returns am arrayref of all valid playernames in the system, can take a
		1141	while and may block, so not sync_job-capable, ever.
		1142
		1143	=cut
		1144
		1145	sub list_logins {
		1146	my $dirs = aio_readdir $PLAYERDIR
		1147	or return [];
		1148
		1149	my @logins;
		1150
		1151	for my $login (@$dirs) {
		1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1153	aio_read $fh, 0, 512, my $buf, 0 or next;
		1154	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1155
		1156	utf8::decode $login;
		1157	push @logins, $login;
		1158	}
		1159
		1160	\@logins
		1161	}
		1162
		1163	=item $player->maps
		1164
		1165	Returns an arrayref of map paths that are private for this
		1166	player. May block.
		1167
		1168	=cut
		1169
		1170	sub maps($) {
		1171	my ($pl) = @_;
		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
		1174
		1175	my $files = aio_readdir playerdir $pl
		1176	or return;
		1177
		1178	my @paths;
		1179
		1180	for (@$files) {
		1181	utf8::decode $_;
		1182	next if /\.(?:pl|pst)$/;
		1183	next unless /^$PATH_SEP/o;
		1184
		1185	push @paths, cf::map::normalise "~$pl/$_";
		1186	}
		1187
		1188	\@paths
		1189	}
		1190
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1121		1192
1122	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1123		1194
1124	=cut	1195	=cut
1125		1196
1126	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1127	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1128		1199
1129	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1130		1201
1131	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		1212	my ($self, $type, %msg) = @_;
		1213
		1214	$self->ns->ext_event ($type, %msg);
		1215	}
		1216
		1217	=head3 cf::region
		1218
		1219	=over 4
		1220
		1221	=cut
		1222
		1223	package cf::region;
		1224
		1225	=item cf::region::find_by_path $path
		1226
		1227	Tries to decuce the probable region for a map knowing only its path.
		1228
		1229	=cut
		1230
		1231	sub find_by_path($) {
		1232	my ($path) = @_;
		1233
		1234	my ($match, $specificity);
		1235
		1236	for my $region (list) {
		1237	if ($region->match && $path =~ $region->match) {
		1238	($match, $specificity) = ($region, $region->specificity)
		1239	if $region->specificity > $specificity;
		1240	}
		1241	}
		1242
		1243	$match
1132	}	1244	}
1133		1245
1134	=back	1246	=back
1135
1136		1247
1137	=head3 cf::map	1248	=head3 cf::map
1138		1249
1139	=over 4	1250	=over 4
1140		1251
…		…
1143	package cf::map;	1254	package cf::map;
1144		1255
1145	use Fcntl;	1256	use Fcntl;
1146	use Coro::AIO;	1257	use Coro::AIO;
1147		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1148	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1150		1265
1151	sub generate_random_map {	1266	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1269	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1278	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(cf::region::find $rmp->{region})	1280	(cf::region::find $rmp->{region}), $rmp->{custom}
		1281	)
		1282	}
		1283
		1284	=item cf::map->register ($regex, $prio)
		1285
		1286	Register a handler for the map path matching the given regex at the
		1287	givne priority (higher is better, built-in handlers have priority 0, the
		1288	default).
		1289
		1290	=cut
		1291
		1292	sub register {
		1293	my (undef, $regex, $prio) = @_;
		1294	my $pkg = caller;
		1295
		1296	no strict;
		1297	push @{"$pkg\::ISA"}, __PACKAGE__;
		1298
		1299	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1300	}
		1301
		1302	# also paths starting with '/'
		1303	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1304
		1305	sub thawer_merge {
		1306	my ($self, $merge) = @_;
		1307
		1308	# we have to keep some variables in memory intact
		1309	local $self->{path};
		1310	local $self->{load_path};
		1311	local $self->{deny_save};
		1312	local $self->{deny_reset};
		1313
		1314	$self->SUPER::thawer_merge ($merge);
		1315	}
		1316
		1317	sub normalise {
		1318	my ($path, $base) = @_;
		1319
		1320	$path = "$path"; # make sure its a string
		1321
		1322	$path =~ s/\.map$//;
		1323
		1324	# map plan:
		1325	#
		1326	# /! non-realised random map exit (special hack!)
		1327	# {... are special paths that are not being touched
		1328	# ?xxx/... are special absolute paths
		1329	# ?random/... random maps
		1330	# /... normal maps
		1331	# ~user/... per-player map of a specific user
		1332
		1333	$path =~ s/$PATH_SEP/\//go;
		1334
		1335	# treat it as relative path if it starts with
		1336	# something that looks reasonable
		1337	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1338	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1339
		1340	$base =~ s{[^/]+/?$}{};
		1341	$path = "$base/$path";
		1342	}
		1343
		1344	for ($path) {
		1345	redo if s{//}{/};
		1346	redo if s{/\.?/}{/};
		1347	redo if s{/[^/]+/\.\./}{/};
		1348	}
		1349
		1350	$path
		1351	}
		1352
		1353	sub new_from_path {
		1354	my (undef, $path, $base) = @_;
		1355
		1356	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1357
		1358	$path = normalise $path, $base;
		1359
		1360	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1361	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1362	my $self = bless cf::map::new, $pkg;
		1363	$self->{path} = $path; $self->path ($path);
		1364	$self->init; # pass $1 etc.
		1365	return $self;
		1366	}
		1367	}
		1368
		1369	Carp::carp "unable to resolve path '$path' (base '$base').";
		1370	()
		1371	}
		1372
		1373	sub init {
		1374	my ($self) = @_;
		1375
		1376	$self
		1377	}
		1378
		1379	sub as_string {
		1380	my ($self) = @_;
		1381
		1382	"$self->{path}"
		1383	}
		1384
		1385	# the displayed name, this is a one way mapping
		1386	sub visible_name {
		1387	&as_string
		1388	}
		1389
		1390	# the original (read-only) location
		1391	sub load_path {
		1392	my ($self) = @_;
		1393
		1394	"$MAPDIR/$self->{path}.map"
		1395	}
		1396
		1397	# the temporary/swap location
		1398	sub save_path {
		1399	my ($self) = @_;
		1400
		1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1402	"$TMPDIR/$path.map"
		1403	}
		1404
		1405	# the unique path, undef == no special unique path
		1406	sub uniq_path {
		1407	my ($self) = @_;
		1408
		1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1410	"$UNIQUEDIR/$path"
1168	}	1411	}
1169		1412
1170	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1171	# all maps in C++...	1414	# all maps in C++...
1172	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1174		1417
1175	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1177	}	1420	}
1178		1421
		1422	sub unlink_save {
		1423	my ($self) = @_;
		1424
		1425	utf8::encode (my $save = $self->save_path);
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1427	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1428	}
		1429
1179	sub try_load_header($) {	1430	sub load_header_from($) {
1180	my ($path) = @_;	1431	my ($self, $path) = @_;
1181		1432
1182	utf8::encode $path;	1433	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1184	or return;	1438	or return;
1185		1439
1186	my $map = cf::map::new	1440	$self->{load_path} = $path;
		1441
		1442	1
		1443	}
		1444
		1445	sub load_header_orig {
		1446	my ($self) = @_;
		1447
		1448	$self->load_header_from ($self->load_path)
		1449	}
		1450
		1451	sub load_header_temp {
		1452	my ($self) = @_;
		1453
		1454	$self->load_header_from ($self->save_path)
		1455	}
		1456
		1457	sub prepare_temp {
		1458	my ($self) = @_;
		1459
		1460	$self->last_access ((delete $self->{last_access})
		1461	|| $cf::RUNTIME); #d#
		1462	# safety
		1463	$self->{instantiate_time} = $cf::RUNTIME
		1464	if $self->{instantiate_time} > $cf::RUNTIME;
		1465	}
		1466
		1467	sub prepare_orig {
		1468	my ($self) = @_;
		1469
		1470	$self->{load_original} = 1;
		1471	$self->{instantiate_time} = $cf::RUNTIME;
		1472	$self->last_access ($cf::RUNTIME);
		1473	$self->instantiate;
		1474	}
		1475
		1476	sub load_header {
		1477	my ($self) = @_;
		1478
		1479	if ($self->load_header_temp) {
		1480	$self->prepare_temp;
		1481	} else {
		1482	$self->load_header_orig
1187	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1188		1486
1189	$map->load_header ($path)	1487	$self->default_region (cf::region::find_by_path $self->{path})
1190	or return;	1488	unless $self->default_region;
1191		1489
1192	$map->{load_path} = $path;	1490	1
1193
1194	$map
1195	}	1491	}
1196		1492
1197	sub find;	1493	sub find;
1198	sub find {	1494	sub find {
1199	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1200		1496
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1498
1206	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1207		1500
1208	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1210		1503	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	if ($map) {
1215	$map->last_access ((delete $map->{last_access})
1216	|| $cf::RUNTIME); #d#
1217	# safety
1218	$map->{instantiate_time} = $cf::RUNTIME
1219	if $map->{instantiate_time} > $cf::RUNTIME;
1220	} else {
1221	if (my $rmp = $path->random_map_params) {
1222	$map = generate_random_map $key, $rmp;
1223	} else {
1224	$map = try_load_header $path->load_path;
1225	}
1226
1227	$map or return;	1504	or return;
1228		1505
1229	$map->{load_original} = 1;
1230	$map->{instantiate_time} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232	$map->instantiate;
1233
1234	# per-player maps become, after loading, normal maps
1235	$map->per_player (0) if $path->{user_rel};
1236	}
1237
1238	$map->path ($key);
1239	$map->{path} = $path;
1240	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1241		1507
1242	if ($map->should_reset) {	1508	$map->load_header
		1509	or return;
		1510
		1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1512	# doing this can freeze the server in a sync job, obviously
		1513	#$cf::WAIT_FOR_TICK->wait;
1243	$map->reset;	1514	$map->reset;
1244	undef $guard;	1515	undef $guard;
1245	$map = find $path	1516	return find $path;
1246	or return;
1247	}	1517	}
1248		1518
1249	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1250	}	1520	}
1251	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1252		1525
1253	sub load {	1526	sub load {
1254	my ($self) = @_;	1527	my ($self) = @_;
1255		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1256	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1257	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1258		1535
1259	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1260		1537
1261	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1262		1539
1263	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1264	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1265	or return;	1546	or return;
1266		1547
1267	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1268	if delete $self->{load_original};	1549	if delete $self->{load_original};
1269		1550
1270	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1271	utf8::encode $uniq;	1552	utf8::encode $uniq;
1272	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1273	$self->clear_unique_items;	1554	$self->clear_unique_items;
1274	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1275	}	1556	}
1276	}	1557	}
1277		1558
		1559	Coro::cede;
1278	# now do the right thing for maps	1560	# now do the right thing for maps
1279	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1280
1281	if ($self->{path}->is_style_map) {
1282	$self->{deny_save} = 1;
1283	$self->{deny_reset} = 1;
1284	} else {
1285	$self->fix_auto_apply;
1286	$self->decay_objects;
1287	$self->update_buttons;
1288	$self->set_darkness_map;
1289	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1290	unless $self->difficulty;	1563	unless $self->difficulty;
		1564	Coro::cede;
		1565
		1566	unless ($self->{deny_activate}) {
		1567	$self->decay_objects;
		1568	$self->fix_auto_apply;
		1569	$self->update_buttons;
		1570	Coro::cede;
		1571	$self->set_darkness_map;
		1572	Coro::cede;
1291	$self->activate;	1573	$self->activate;
1292	}	1574	}
1293		1575
1294	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
		1577	}
		1578
		1579	$self->post_load;
		1580	}
		1581
		1582	sub customise_for {
		1583	my ($self, $ob) = @_;
		1584
		1585	return find "~" . $ob->name . "/" . $self->{path}
		1586	if $self->per_player;
		1587
		1588	$self
		1589	}
		1590
		1591	# find and load all maps in the 3x3 area around a map
		1592	sub load_diag {
		1593	my ($map) = @_;
		1594
		1595	my @diag; # diagonal neighbours
		1596
		1597	for (0 .. 3) {
		1598	my $neigh = $map->tile_path ($_)
		1599	or next;
		1600	$neigh = find $neigh, $map
		1601	or next;
		1602	$neigh->load;
		1603
		1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1606	}
		1607
		1608	for (@diag) {
		1609	my $neigh = find @$_
		1610	or next;
		1611	$neigh->load;
		1612	}
1295	}	1613	}
1296		1614
1297	sub find_sync {	1615	sub find_sync {
1298	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1299		1617
1300	cf::sync_job { cf::map::find $path, $origin }	1618	cf::sync_job { find $path, $origin }
1301	}	1619	}
1302		1620
1303	sub do_load_sync {	1621	sub do_load_sync {
1304	my ($map) = @_;	1622	my ($map) = @_;
1305		1623
1306	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1307	}	1625	}
1308		1626
		1627	our %MAP_PREFETCH;
		1628	our $MAP_PREFETCHER = undef;
		1629
		1630	sub find_async {
		1631	my ($path, $origin) = @_;
		1632
		1633	$path = normalise $path, $origin && $origin->{path};
		1634
		1635	if (my $map = $cf::MAP{$path}) {
		1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1637	}
		1638
		1639	undef $MAP_PREFETCH{$path};
		1640	$MAP_PREFETCHER ||= cf::async {
		1641	while (%MAP_PREFETCH) {
		1642	for my $path (keys %MAP_PREFETCH) {
		1643	my $map = find $path
		1644	or next;
		1645	$map->load;
		1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
		1651	};
		1652	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
		1655	}
		1656
1309	sub save {	1657	sub save {
1310	my ($self) = @_;	1658	my ($self) = @_;
1311		1659
		1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1661
1312	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1313		1663
1314	return unless $self->dirty;	1664	return unless $self->dirty;
1315		1665
1316	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1317	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1318		1668
1319	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1320		1670
1321	return if $self->{deny_save};	1671	return if $self->{deny_save};
1322		1672
1323	local $self->{last_access} = $self->last_access;#d#	1673	local $self->{last_access} = $self->last_access;#d#
1324		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1325	if ($uniq) {	1679	if ($uniq) {
1326	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1327	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1328	} else {	1682	} else {
1329	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1330	}	1684	}
1331	}	1685	}
1332		1686
1333	sub swap_out {	1687	sub swap_out {
1334	my ($self) = @_;	1688	my ($self) = @_;
1335		1689
1336	# save first because save cedes	1690	# save first because save cedes
1337	$self->save;	1691	$self->save;
		1692
		1693	my $lock = cf::lock_acquire "map_data:" . $self->path;
1338		1694
1339	return if $self->players;	1695	return if $self->players;
1340	return if $self->in_memory != cf::MAP_IN_MEMORY;	1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1341	return if $self->{deny_save};	1697	return if $self->{deny_save};
1342		1698
…		…
1346		1702
1347	sub reset_at {	1703	sub reset_at {
1348	my ($self) = @_;	1704	my ($self) = @_;
1349		1705
1350	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1351	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1352	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1353		1709
1354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1356		1712
…		…
1361	my ($self) = @_;	1717	my ($self) = @_;
1362		1718
1363	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1364	}	1720	}
1365		1721
1366	sub unlink_save {
1367	my ($self) = @_;
1368
1369	utf8::encode (my $save = $self->{path}->save_path);
1370	aioreq_pri 3; IO::AIO::aio_unlink $save;
1371	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1372	}
1373
1374	sub rename {
1375	my ($self, $new_path) = @_;
1376
1377	$self->unlink_save;
1378
1379	delete $cf::MAP{$self->path};
1380	$self->{path} = new cf::path $new_path;
1381	$self->path ($self->{path}->as_string);
1382	$cf::MAP{$self->path} = $self;
1383
1384	$self->save;
1385	}
1386
1387	sub reset {	1722	sub reset {
1388	my ($self) = @_;	1723	my ($self) = @_;
1389		1724
		1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1726
1390	return if $self->players;	1727	return if $self->players;
1391	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1392		1729
1393	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1394		1731
		1732	$self->in_memory (cf::MAP_SWAPPED);
		1733
		1734	# need to save uniques path
		1735	unless ($self->{deny_save}) {
		1736	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1737
		1738	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1739	if $uniq;
		1740	}
		1741
1395	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1396		1745
1397	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1398		1747
1399	$self->unlink_save;	1748	$self->unlink_save;
1400	$self->destroy;	1749	$self->destroy;
…		…
1403	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1404		1753
1405	sub nuke {	1754	sub nuke {
1406	my ($self) = @_;	1755	my ($self) = @_;
1407		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1408	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1409	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1410	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1411	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1412	}	1770	}
1413		1771
1414	sub customise_for {	1772	=item cf::map::unique_maps
1415	my ($map, $ob) = @_;
1416		1773
1417	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1418	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1419	}
1420		1776
1421	$map	1777	=cut
1422	}
1423		1778
1424	sub emergency_save {	1779	sub unique_maps() {
1425	my $freeze_guard = cf::freeze_mainloop;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1426		1782
1427	warn "enter emergency map save\n";	1783	my @paths;
1428		1784
1429	cf::sync_job {	1785	for (@$files) {
1430	warn "begin emergency map save\n";	1786	utf8::decode $_;
1431	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1432	};	1791	}
1433		1792
1434	warn "end emergency map save\n";	1793	\@paths
1435	}	1794	}
1436		1795
1437	package cf;	1796	package cf;
1438		1797
1439	=back	1798	=back
1440		1799
		1800	=head3 cf::object
		1801
		1802	=cut
		1803
		1804	package cf::object;
		1805
		1806	=over 4
		1807
		1808	=item $ob->inv_recursive
		1809
		1810	Returns the inventory of the object _and_ their inventories, recursively.
		1811
		1812	=cut
		1813
		1814	sub inv_recursive_;
		1815	sub inv_recursive_ {
		1816	map { $_, inv_recursive_ $_->inv } @_
		1817	}
		1818
		1819	sub inv_recursive {
		1820	inv_recursive_ inv $_[0]
		1821	}
		1822
		1823	package cf;
		1824
		1825	=back
1441		1826
1442	=head3 cf::object::player	1827	=head3 cf::object::player
1443		1828
1444	=over 4	1829	=over 4
1445		1830
…		…
1485		1870
1486	=item $player_object->enter_link	1871	=item $player_object->enter_link
1487		1872
1488	Freezes the player and moves him/her to a special map (C<{link}>).	1873	Freezes the player and moves him/her to a special map (C<{link}>).
1489		1874
1490	The player should be reaosnably safe there for short amounts of time. You	1875	The player should be reasonably safe there for short amounts of time. You
1491	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1492		1877
		1878	Will never block.
		1879
1493	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1494		1881
1495	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1496	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1497	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1498	to the emergency map position.	1885	fails, to the emergency map position.
1499		1886
1500	Might block.	1887	Might block.
1501		1888
1502	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($LINK_MAP) {
		1893	$LINK_MAP = cf::map::find "{link}"
		1894	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1895	$LINK_MAP->load;
		1896	}
		1897
		1898	$LINK_MAP
		1899	}
1503		1900
1504	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1505	my ($self) = @_;	1902	my ($self) = @_;
1506		1903
1507	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1508		1905
1509	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1510		1907
1511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1512	if $self->map;	1909	if $self->map && $self->map->{path} ne "{link}";
1513		1910
1514	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1515	}	1912	}
1516		1913
1517	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1518	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
		1916
		1917	return unless $self->contr->active;
1519		1918
1520	my $link_pos = delete $self->{_link_pos};	1919	my $link_pos = delete $self->{_link_pos};
1521		1920
1522	unless ($map) {	1921	unless ($map) {
1523	# restore original map position	1922	# restore original map position
…		…
1537	# use -1 or undef as default coordinates, not 0, 0	1936	# use -1 or undef as default coordinates, not 0, 0
1538	($x, $y) = ($map->enter_x, $map->enter_y)	1937	($x, $y) = ($map->enter_x, $map->enter_y)
1539	if $x <=0 && $y <= 0;	1938	if $x <=0 && $y <= 0;
1540		1939
1541	$map->load;	1940	$map->load;
		1941	$map->load_diag;
1542		1942
		1943	return unless $self->contr->active;
1543	$self->activate_recursive;	1944	$self->activate_recursive;
		1945
		1946	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1544	$self->enter_map ($map, $x, $y);	1947	$self->enter_map ($map, $x, $y);
1545	}	1948	}
1546		1949
1547	cf::player->attach (
1548	on_logout => sub {
1549	my ($pl) = @_;
1550
1551	# abort map switching before logout
1552	if ($pl->ob->{_link_pos}) {
1553	cf::sync_job {
1554	$pl->ob->leave_link
1555	};
1556	}
1557	},
1558	on_login => sub {
1559	my ($pl) = @_;
1560
1561	# try to abort aborted map switching on player login :)
1562	# should happen only on crashes
1563	if ($pl->ob->{_link_pos}) {
1564	$pl->ob->enter_link;
1565	cf::async {
1566	# we need this sleep as the login has a concurrent enter_exit running
1567	# and this sleep increases chances of the player not ending up in scorn
1568	Coro::Timer::sleep 1;
1569	$pl->ob->leave_link;
1570	};
1571	}
1572	},
1573	);
1574
1575	=item $player_object->goto_map ($path, $x, $y)	1950	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1576		1951
1577	=cut	1952	Moves the player to the given map-path and coordinates by first freezing
		1953	her, loading and preparing them map, calling the provided $check callback
		1954	that has to return the map if sucecssful, and then unfreezes the player on
		1955	the new (success) or old (failed) map position.
1578		1956
		1957	=cut
		1958
		1959	our $GOTOGEN;
		1960
1579	sub cf::object::player::goto_map {	1961	sub cf::object::player::goto {
1580	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y, $check) = @_;
		1963
		1964	# do generation counting so two concurrent goto's will be executed in-order
		1965	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1581		1966
1582	$self->enter_link;	1967	$self->enter_link;
1583		1968
1584	(cf::async {	1969	(async {
1585	$path = new cf::path $path;	1970	my $map = eval {
1586
1587	my $map = cf::map::find $path->as_string;	1971	my $map = cf::map::find $path;
		1972
		1973	if ($map) {
1588	$map = $map->customise_for ($self) if $map;	1974	$map = $map->customise_for ($self);
1589		1975	$map = $check->($map) if $check && $map;
1590	# warn "entering ", $map->path, " at ($x, $y)\n"	1976	} else {
1591	# if $map;
1592
1593	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1977	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1978	}
1594		1979
		1980	$map
		1981	};
		1982
		1983	if ($@) {
		1984	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1985	LOG llevError | logBacktrace, Carp::longmess $@;
		1986	}
		1987
		1988	if ($gen == $self->{_goto_generation}) {
		1989	delete $self->{_goto_generation};
1595	$self->leave_link ($map, $x, $y);	1990	$self->leave_link ($map, $x, $y);
		1991	}
1596	})->prio (1);	1992	})->prio (1);
1597	}	1993	}
1598		1994
1599	=item $player_object->enter_exit ($exit_object)	1995	=item $player_object->enter_exit ($exit_object)
1600		1996
…		…
1602		1998
1603	sub parse_random_map_params {	1999	sub parse_random_map_params {
1604	my ($spec) = @_;	2000	my ($spec) = @_;
1605		2001
1606	my $rmp = { # defaults	2002	my $rmp = { # defaults
1607	xsize => 10,	2003	xsize => (cf::rndm 15, 40),
1608	ysize => 10,	2004	ysize => (cf::rndm 15, 40),
		2005	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2006	#layout => string,
1609	};	2007	};
1610		2008
1611	for (split /\n/, $spec) {	2009	for (split /\n/, $spec) {
1612	my ($k, $v) = split /\s+/, $_, 2;	2010	my ($k, $v) = split /\s+/, $_, 2;
1613		2011
…		…
1617	$rmp	2015	$rmp
1618	}	2016	}
1619		2017
1620	sub prepare_random_map {	2018	sub prepare_random_map {
1621	my ($exit) = @_;	2019	my ($exit) = @_;
		2020
		2021	my $guard = cf::lock_acquire "exit_prepare:$exit";
1622		2022
1623	# all this does is basically replace the /! path by	2023	# all this does is basically replace the /! path by
1624	# a new random map path (?random/...) with a seed	2024	# a new random map path (?random/...) with a seed
1625	# that depends on the exit object	2025	# that depends on the exit object
1626		2026
1627	my $rmp = parse_random_map_params $exit->msg;	2027	my $rmp = parse_random_map_params $exit->msg;
1628		2028
1629	if ($exit->map) {	2029	if ($exit->map) {
1630	$rmp->{region} = $exit->map->region_name;	2030	$rmp->{region} = $exit->region->name;
1631	$rmp->{origin_map} = $exit->map->path;	2031	$rmp->{origin_map} = $exit->map->path;
1632	$rmp->{origin_x} = $exit->x;	2032	$rmp->{origin_x} = $exit->x;
1633	$rmp->{origin_y} = $exit->y;	2033	$rmp->{origin_y} = $exit->y;
1634	}	2034	}
1635		2035
1636	$rmp->{random_seed} ||= $exit->random_seed;	2036	$rmp->{random_seed} ||= $exit->random_seed;
1637		2037
1638	my $data = cf::to_json $rmp;	2038	my $data = cf::to_json $rmp;
1639	my $md5 = Digest::MD5::md5_hex $data;	2039	my $md5 = Digest::MD5::md5_hex $data;
		2040	my $meta = "$RANDOMDIR/$md5.meta";
1640		2041
1641	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2042	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1642	aio_write $fh, 0, (length $data), $data, 0;	2043	aio_write $fh, 0, (length $data), $data, 0;
		2044	undef $fh;
		2045	aio_rename "$meta~", $meta;
1643		2046
1644	$exit->slaying ("?random/$md5");	2047	$exit->slaying ("?random/$md5");
1645	$exit->msg (undef);	2048	$exit->msg (undef);
1646	}	2049	}
1647	}	2050	}
…		…
1649	sub cf::object::player::enter_exit {	2052	sub cf::object::player::enter_exit {
1650	my ($self, $exit) = @_;	2053	my ($self, $exit) = @_;
1651		2054
1652	return unless $self->type == cf::PLAYER;	2055	return unless $self->type == cf::PLAYER;
1653		2056
		2057	if ($exit->slaying eq "/!") {
		2058	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2059	# the problem is that $exit might not survive long enough
		2060	# so it needs to be done right now, right here
		2061	cf::sync_job { prepare_random_map $exit };
		2062	}
		2063
		2064	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2065	my $hp = $exit->stats->hp;
		2066	my $sp = $exit->stats->sp;
		2067
1654	$self->enter_link;	2068	$self->enter_link;
1655		2069
1656	(cf::async {	2070	(async {
1657	$self->deactivate_recursive; # just to be sure	2071	$self->deactivate_recursive; # just to be sure
1658	unless (eval {	2072	unless (eval {
1659	prepare_random_map $exit	2073	$self->goto ($slaying, $hp, $sp);
1660	if $exit->slaying eq "/!";
1661
1662	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1663	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1664		2074
1665	1;	2075	1;
1666	}) {	2076	}) {
1667	$self->message ("Something went wrong deep within the crossfire server. "	2077	$self->message ("Something went wrong deep within the crossfire server. "
1668	. "I'll try to bring you back to the map you were before. "	2078	. "I'll try to bring you back to the map you were before. "
1669	. "Please report this to the dungeon master",	2079	. "Please report this to the dungeon master!",
1670	cf::NDI_UNIQUE | cf::NDI_RED);	2080	cf::NDI_UNIQUE | cf::NDI_RED);
1671		2081
1672	warn "ERROR in enter_exit: $@";	2082	warn "ERROR in enter_exit: $@";
1673	$self->leave_link;	2083	$self->leave_link;
1674	}	2084	}
1675	})->prio (1);	2085	})->prio (1);
…		…
1688		2098
1689	sub cf::client::send_drawinfo {	2099	sub cf::client::send_drawinfo {
1690	my ($self, $text, $flags) = @_;	2100	my ($self, $text, $flags) = @_;
1691		2101
1692	utf8::encode $text;	2102	utf8::encode $text;
1693	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2103	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1694	}	2104	}
1695		2105
		2106	=item $client->ext_event ($type, %msg)
		2107
		2108	Sends an exti event to the client.
		2109
		2110	=cut
		2111
		2112	sub cf::client::ext_event($$%) {
		2113	my ($self, $type, %msg) = @_;
		2114
		2115	$msg{msgtype} = "event_$type";
		2116	$self->send_packet ("ext " . cf::to_json \%msg);
		2117	}
1696		2118
1697	=item $success = $client->query ($flags, "text", \&cb)	2119	=item $success = $client->query ($flags, "text", \&cb)
1698		2120
1699	Queues a query to the client, calling the given callback with	2121	Queues a query to the client, calling the given callback with
1700	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2122	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1729	# get handled first	2151	# get handled first
1730	my $queue = delete $ns->{query_queue}	2152	my $queue = delete $ns->{query_queue}
1731	or return; # be conservative, not sure how that can happen, but we saw a crash here	2153	or return; # be conservative, not sure how that can happen, but we saw a crash here
1732		2154
1733	(shift @$queue)->[1]->($msg);	2155	(shift @$queue)->[1]->($msg);
		2156	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1734		2157
1735	push @{ $ns->{query_queue} }, @$queue;	2158	push @{ $ns->{query_queue} }, @$queue;
1736		2159
1737	if (@{ $ns->{query_queue} } == @$queue) {	2160	if (@{ $ns->{query_queue} } == @$queue) {
1738	if (@$queue) {	2161	if (@$queue) {
…		…
1742	}	2165	}
1743	}	2166	}
1744	},	2167	},
1745	);	2168	);
1746		2169
1747	=item $client->coro (\&cb)	2170	=item $client->async (\&cb)
1748		2171
1749	Create a new coroutine, running the specified callback. The coroutine will	2172	Create a new coroutine, running the specified callback. The coroutine will
1750	be automatically cancelled when the client gets destroyed (e.g. on logout,	2173	be automatically cancelled when the client gets destroyed (e.g. on logout,
1751	or loss of connection).	2174	or loss of connection).
1752		2175
1753	=cut	2176	=cut
1754		2177
1755	sub cf::client::coro {	2178	sub cf::client::async {
1756	my ($self, $cb) = @_;	2179	my ($self, $cb) = @_;
1757		2180
1758	my $coro = &cf::async ($cb);	2181	my $coro = &Coro::async ($cb);
1759		2182
1760	$coro->on_destroy (sub {	2183	$coro->on_destroy (sub {
1761	delete $self->{_coro}{$coro+0};	2184	delete $self->{_coro}{$coro+0};
1762	});	2185	});
1763		2186
…		…
1796		2219
1797	# here we export the classes and methods available to script code	2220	# here we export the classes and methods available to script code
1798		2221
1799	=pod	2222	=pod
1800		2223
1801	The following fucntions and emthods are available within a safe environment:	2224	The following functions and methods are available within a safe environment:
1802		2225
1803	cf::object contr pay_amount pay_player map	2226	cf::object contr pay_amount pay_player map
1804	cf::object::player player	2227	cf::object::player player
1805	cf::player peaceful	2228	cf::player peaceful
1806	cf::map trigger	2229	cf::map trigger
…		…
1891	#############################################################################	2314	#############################################################################
1892		2315
1893	=head2 EXTENSION DATABASE SUPPORT	2316	=head2 EXTENSION DATABASE SUPPORT
1894		2317
1895	Crossfire maintains a very simple database for extension use. It can	2318	Crossfire maintains a very simple database for extension use. It can
1896	currently store anything that can be serialised using Storable, which	2319	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1897	excludes objects.	2320	convert to/from binary).
1898		2321
1899	The parameter C<$family> should best start with the name of the extension	2322	The parameter C<$family> should best start with the name of the extension
1900	using it, it should be unique.	2323	using it, it should be unique.
1901		2324
1902	=over 4	2325	=over 4
1903		2326
1904	=item $hashref = cf::db_get $family
1905
1906	Return a hashref for use by the extension C<$family>, which can be
1907	modified. After modifications, you have to call C<cf::db_dirty> or
1908	C<cf::db_sync>.
1909
1910	=item $value = cf::db_get $family => $key	2327	=item $value = cf::db_get $family => $key
1911		2328
1912	Returns a single value from the database	2329	Returns a single value from the database.
1913
1914	=item cf::db_put $family => $hashref
1915
1916	Stores the given family hashref into the database. Updates are delayed, if
1917	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1918		2330
1919	=item cf::db_put $family => $key => $value	2331	=item cf::db_put $family => $key => $value
1920		2332
1921	Stores the given C<$value> in the family hash. Updates are delayed, if you	2333	Stores the given C<$value> in the family.
1922	want the data to be synced to disk immediately, use C<cf::db_sync>.
1923
1924	=item cf::db_dirty
1925
1926	Marks the database as dirty, to be updated at a later time.
1927
1928	=item cf::db_sync
1929
1930	Immediately write the database to disk I<if it is dirty>.
1931		2334
1932	=cut	2335	=cut
1933		2336
1934	our $DB;	2337	our $DB;
1935		2338
1936	{	2339	sub db_init {
1937	my $path = cf::localdir . "/database.pst";	2340	unless ($DB) {
		2341	$DB = BDB::db_create $DB_ENV;
1938		2342
1939	sub db_load() {	2343	cf::sync_job {
1940	$DB = stat $path ? Storable::retrieve $path : { };	2344	eval {
1941	}	2345	$DB->set_flags (BDB::CHKSUM);
1942		2346
1943	my $pid;	2347	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1944		2348	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1945	sub db_save() {	2349	cf::cleanup "db_open(db): $!" if $!;
1946	waitpid $pid, 0 if $pid;	2350	};
1947	if (0 == ($pid = fork)) {	2351	cf::cleanup "db_open(db): $@" if $@;
1948	$DB->{_meta}{version} = 1;
1949	Storable::nstore $DB, "$path~";
1950	rename "$path~", $path;
1951	cf::_exit 0 if defined $pid;
1952	}	2352	};
1953	}
1954
1955	my $dirty;
1956
1957	sub db_sync() {
1958	db_save if $dirty;
1959	undef $dirty;
1960	}
1961
1962	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1963	db_sync;
1964	});	2353	}
		2354	}
1965		2355
1966	sub db_dirty() {
1967	$dirty = 1;
1968	$idle->start;
1969	}
1970
1971	sub db_get($;$) {	2356	sub db_get($$) {
1972	@_ >= 2	2357	my $key = "$_[0]/$_[1]";
1973	? $DB->{$_[0]}{$_[1]}
1974	: ($DB->{$_[0]} ||= { })
1975	}
1976		2358
		2359	cf::sync_job {
		2360	BDB::db_get $DB, undef, $key, my $data;
		2361
		2362	$! ? ()
		2363	: $data
		2364	}
		2365	}
		2366
1977	sub db_put($$;$) {	2367	sub db_put($$$) {
1978	if (@_ >= 3) {	2368	BDB::dbreq_pri 4;
1979	$DB->{$_[0]}{$_[1]} = $_[2];	2369	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1980	} else {	2370	}
1981	$DB->{$_[0]} = $_[1];
1982	}
1983	db_dirty;
1984	}
1985		2371
1986	cf::global->attach (	2372	=item cf::cache $id => [$paths...], $processversion => $process
1987	prio => 10000,	2373
1988	on_cleanup => sub {	2374	Generic caching function that returns the value of the resource $id,
1989	db_sync;	2375	caching and regenerating as required.
		2376
		2377	This function can block.
		2378
		2379	=cut
		2380
		2381	sub cache {
		2382	my ($id, $src, $processversion, $process) = @_;
		2383
		2384	my $meta =
		2385	join "\x00",
		2386	$processversion,
		2387	map {
		2388	aio_stat $_
		2389	and Carp::croak "$_: $!";
		2390
		2391	($_, (stat _)[7,9])
		2392	} @$src;
		2393
		2394	my $dbmeta = db_get cache => "$id/meta";
		2395	if ($dbmeta ne $meta) {
		2396	# changed, we may need to process
		2397
		2398	my @data;
		2399	my $md5;
		2400
		2401	for (0 .. $#$src) {
		2402	0 <= aio_load $src->[$_], $data[$_]
		2403	or Carp::croak "$src->[$_]: $!";
1990	},	2404	}
1991	);	2405
		2406	# if processing is expensive, check
		2407	# checksum first
		2408	if (1) {
		2409	$md5 =
		2410	join "\x00",
		2411	$processversion,
		2412	map {
		2413	Coro::cede;
		2414	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2415	} 0.. $#$src;
		2416
		2417
		2418	my $dbmd5 = db_get cache => "$id/md5";
		2419	if ($dbmd5 eq $md5) {
		2420	db_put cache => "$id/meta", $meta;
		2421
		2422	return db_get cache => "$id/data";
		2423	}
		2424	}
		2425
		2426	my $t1 = Time::HiRes::time;
		2427	my $data = $process->(\@data);
		2428	my $t2 = Time::HiRes::time;
		2429
		2430	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2431
		2432	db_put cache => "$id/data", $data;
		2433	db_put cache => "$id/md5" , $md5;
		2434	db_put cache => "$id/meta", $meta;
		2435
		2436	return $data;
		2437	}
		2438
		2439	db_get cache => "$id/data"
1992	}	2440	}
		2441
		2442	=item fork_call { }, $args
		2443
		2444	Executes the given code block with the given arguments in a seperate
		2445	process, returning the results. Everything must be serialisable with
		2446	Coro::Storable. May, of course, block. Note that the executed sub may
		2447	never block itself or use any form of Event handling.
		2448
		2449	=cut
		2450
		2451	sub fork_call(&@) {
		2452	my ($cb, @args) = @_;
		2453
		2454	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2455	# or die "socketpair: $!";
		2456	pipe my $fh1, my $fh2
		2457	or die "pipe: $!";
		2458
		2459	if (my $pid = fork) {
		2460	close $fh2;
		2461
		2462	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2463	$res = Coro::Storable::thaw $res;
		2464
		2465	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2466
		2467	die $$res unless "ARRAY" eq ref $res;
		2468
		2469	return wantarray ? @$res : $res->[-1];
		2470	} else {
		2471	reset_signals;
		2472	local $SIG{__WARN__};
		2473	local $SIG{__DIE__};
		2474	eval {
		2475	close $fh1;
		2476
		2477	my @res = eval { $cb->(@args) };
		2478	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2479	};
		2480
		2481	warn $@ if $@;
		2482	_exit 0;
		2483	}
		2484	}
		2485
		2486
1993		2487
1994	#############################################################################	2488	#############################################################################
1995	# the server's main()	2489	# the server's init and main functions
		2490
		2491	sub load_facedata($) {
		2492	my ($path) = @_;
		2493
		2494	warn "loading facedata from $path\n";
		2495
		2496	my $facedata;
		2497	0 < aio_load $path, $facedata
		2498	or die "$path: $!";
		2499
		2500	$facedata = Coro::Storable::thaw $facedata;
		2501
		2502	$facedata->{version} == 2
		2503	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2504
		2505	{
		2506	my $faces = $facedata->{faceinfo};
		2507
		2508	while (my ($face, $info) = each %$faces) {
		2509	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2510	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2511	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2512	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2513	Coro::cede;
		2514	}
		2515
		2516	while (my ($face, $info) = each %$faces) {
		2517	next unless $info->{smooth};
		2518	my $idx = cf::face::find $face
		2519	or next;
		2520	if (my $smooth = cf::face::find $info->{smooth}) {
		2521	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2522	} else {
		2523	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2524	}
		2525	Coro::cede;
		2526	}
		2527	}
		2528
		2529	{
		2530	my $anims = $facedata->{animinfo};
		2531
		2532	while (my ($anim, $info) = each %$anims) {
		2533	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2534	Coro::cede;
		2535	}
		2536
		2537	cf::anim::invalidate_all; # d'oh
		2538	}
		2539
		2540	1
		2541	}
		2542
		2543	sub reload_regions {
		2544	load_resource_file "$MAPDIR/regions"
		2545	or die "unable to load regions file\n";
		2546	}
		2547
		2548	sub reload_facedata {
		2549	load_facedata "$DATADIR/facedata"
		2550	or die "unable to load facedata\n";
		2551	}
		2552
		2553	sub reload_archetypes {
		2554	load_resource_file "$DATADIR/archetypes"
		2555	or die "unable to load archetypes\n";
		2556	}
		2557
		2558	sub reload_treasures {
		2559	load_resource_file "$DATADIR/treasures"
		2560	or die "unable to load treasurelists\n";
		2561	}
		2562
		2563	sub reload_resources {
		2564	warn "reloading resource files...\n";
		2565
		2566	reload_regions;
		2567	reload_facedata;
		2568	reload_archetypes;
		2569	reload_treasures;
		2570
		2571	warn "finished reloading resource files\n";
		2572	}
		2573
		2574	sub init {
		2575	reload_resources;
		2576	}
1996		2577
1997	sub cfg_load {	2578	sub cfg_load {
1998	open my $fh, "<:utf8", cf::confdir . "/config"	2579	open my $fh, "<:utf8", "$CONFDIR/config"
1999	or return;	2580	or return;
2000		2581
2001	local $/;	2582	local $/;
2002	*CFG = YAML::Syck::Load <$fh>;	2583	*CFG = YAML::Syck::Load <$fh>;
2003		2584
2004	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2585	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2005		2586
		2587	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2588	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2589
2006	if (exists $CFG{mlockall}) {	2590	if (exists $CFG{mlockall}) {
2007	eval {	2591	eval {
2008	$CFG{mlockall} ? &mlockall : &munlockall	2592	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2009	and die "WARNING: m(un)lockall failed: $!\n";	2593	and die "WARNING: m(un)lockall failed: $!\n";
2010	};	2594	};
2011	warn $@ if $@;	2595	warn $@ if $@;
2012	}	2596	}
2013	}	2597	}
2014		2598
2015	sub main {	2599	sub main {
2016	# we must not ever block the main coroutine	2600	# we must not ever block the main coroutine
2017	local $Coro::idle = sub {	2601	local $Coro::idle = sub {
2018	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2602	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2019	(Coro::unblock_sub {	2603	(async {
2020	Event::one_event;	2604	Event::one_event;
2021	})->();	2605	})->prio (Coro::PRIO_MAX);
2022	};	2606	};
2023		2607
2024	cfg_load;	2608	cfg_load;
2025	db_load;	2609	db_init;
2026	load_extensions;	2610	load_extensions;
		2611
		2612	$TICK_WATCHER->start;
2027	Event::loop;	2613	Event::loop;
2028	}	2614	}
2029		2615
2030	#############################################################################	2616	#############################################################################
2031	# initialisation	2617	# initialisation and cleanup
2032		2618
		2619	# install some emergency cleanup handlers
		2620	BEGIN {
		2621	for my $signal (qw(INT HUP TERM)) {
		2622	Event->signal (
		2623	reentrant => 0,
		2624	data => WF_AUTOCANCEL,
		2625	signal => $signal,
		2626	prio => 0,
		2627	cb => sub {
		2628	cf::cleanup "SIG$signal";
		2629	},
		2630	);
		2631	}
		2632	}
		2633
		2634	sub emergency_save() {
		2635	my $freeze_guard = cf::freeze_mainloop;
		2636
		2637	warn "enter emergency perl save\n";
		2638
		2639	cf::sync_job {
		2640	# use a peculiar iteration method to avoid tripping on perl
		2641	# refcount bugs in for. also avoids problems with players
		2642	# and maps saved/destroyed asynchronously.
		2643	warn "begin emergency player save\n";
		2644	for my $login (keys %cf::PLAYER) {
		2645	my $pl = $cf::PLAYER{$login} or next;
		2646	$pl->valid or next;
		2647	$pl->save;
		2648	}
		2649	warn "end emergency player save\n";
		2650
		2651	warn "begin emergency map save\n";
		2652	for my $path (keys %cf::MAP) {
		2653	my $map = $cf::MAP{$path} or next;
		2654	$map->valid or next;
		2655	$map->save;
		2656	}
		2657	warn "end emergency map save\n";
		2658
		2659	warn "begin emergency database checkpoint\n";
		2660	BDB::db_env_txn_checkpoint $DB_ENV;
		2661	warn "end emergency database checkpoint\n";
		2662	};
		2663
		2664	warn "leave emergency perl save\n";
		2665	}
		2666
		2667	sub post_cleanup {
		2668	my ($make_core) = @_;
		2669
		2670	warn Carp::longmess "post_cleanup backtrace"
		2671	if $make_core;
		2672	}
		2673
2033	sub reload() {	2674	sub do_reload_perl() {
2034	# can/must only be called in main	2675	# can/must only be called in main
2035	if ($Coro::current != $Coro::main) {	2676	if ($Coro::current != $Coro::main) {
2036	warn "can only reload from main coroutine\n";	2677	warn "can only reload from main coroutine";
2037	return;	2678	return;
2038	}	2679	}
2039		2680
2040	warn "reloading...";	2681	warn "reloading...";
2041		2682
2042	my $guard = freeze_mainloop;	2683	warn "entering sync_job";
		2684
		2685	cf::sync_job {
		2686	cf::write_runtime; # external watchdog should not bark
2043	cf::emergency_save;	2687	cf::emergency_save;
		2688	cf::write_runtime; # external watchdog should not bark
2044		2689
2045	eval {	2690	warn "syncing database to disk";
		2691	BDB::db_env_txn_checkpoint $DB_ENV;
		2692
2046	# if anything goes wrong in here, we should simply crash as we already saved	2693	# if anything goes wrong in here, we should simply crash as we already saved
2047		2694
2048	# cancel all watchers	2695	warn "cancelling all WF_AUTOCANCEL watchers";
2049	for (Event::all_watchers) {	2696	for (Event::all_watchers) {
2050	$_->cancel if $_->data & WF_AUTOCANCEL;	2697	$_->cancel if $_->data & WF_AUTOCANCEL;
2051	}	2698	}
2052		2699
		2700	warn "flushing outstanding aio requests";
		2701	for (;;) {
		2702	BDB::flush;
		2703	IO::AIO::flush;
		2704	Coro::cede;
		2705	last unless IO::AIO::nreqs || BDB::nreqs;
		2706	warn "iterate...";
		2707	}
		2708
		2709	++$RELOAD;
		2710
2053	# cancel all extension coros	2711	warn "cancelling all extension coros";
2054	$_->cancel for values %EXT_CORO;	2712	$_->cancel for values %EXT_CORO;
2055	%EXT_CORO = ();	2713	%EXT_CORO = ();
2056		2714
2057	# unload all extensions	2715	warn "removing commands";
2058	for (@exts) {	2716	%COMMAND = ();
		2717
		2718	warn "removing ext commands";
		2719	%EXTCMD = ();
		2720
		2721	warn "unloading/nuking all extensions";
		2722	for my $pkg (@EXTS) {
2059	warn "unloading <$_>";	2723	warn "... unloading $pkg";
2060	unload_extension $_;	2724
		2725	if (my $cb = $pkg->can ("unload")) {
		2726	eval {
		2727	$cb->($pkg);
		2728	1
		2729	} or warn "$pkg unloaded, but with errors: $@";
2061	}	2730	}
2062		2731
		2732	warn "... nuking $pkg";
		2733	Symbol::delete_package $pkg;
		2734	}
		2735
2063	# unload all modules loaded from $LIBDIR	2736	warn "unloading all perl modules loaded from $LIBDIR";
2064	while (my ($k, $v) = each %INC) {	2737	while (my ($k, $v) = each %INC) {
2065	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2738	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2066		2739
2067	warn "removing <$k>";	2740	warn "... unloading $k";
2068	delete $INC{$k};	2741	delete $INC{$k};
2069		2742
2070	$k =~ s/\.pm$//;	2743	$k =~ s/\.pm$//;
2071	$k =~ s/\//::/g;	2744	$k =~ s/\//::/g;
2072		2745
…		…
2075	}	2748	}
2076		2749
2077	Symbol::delete_package $k;	2750	Symbol::delete_package $k;
2078	}	2751	}
2079		2752
2080	# sync database to disk
2081	cf::db_sync;
2082	IO::AIO::flush;
2083
2084	# get rid of safe::, as good as possible	2753	warn "getting rid of safe::, as good as possible";
2085	Symbol::delete_package "safe::$_"	2754	Symbol::delete_package "safe::$_"
2086	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2755	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2087		2756
2088	# remove register_script_function callbacks
2089	# TODO
2090
2091	# unload cf.pm "a bit"	2757	warn "unloading cf.pm \"a bit\"";
2092	delete $INC{"cf.pm"};	2758	delete $INC{"cf.pm"};
		2759	delete $INC{"cf/pod.pm"};
2093		2760
2094	# don't, removes xs symbols, too,	2761	# don't, removes xs symbols, too,
2095	# and global variables created in xs	2762	# and global variables created in xs
2096	#Symbol::delete_package __PACKAGE__;	2763	#Symbol::delete_package __PACKAGE__;
2097		2764
2098	# reload cf.pm	2765	warn "unload completed, starting to reload now";
		2766
2099	warn "reloading cf.pm";	2767	warn "reloading cf.pm";
2100	require cf;	2768	require cf;
2101	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2769	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2102		2770
2103	# load config and database again	2771	warn "loading config and database again";
2104	cf::cfg_load;	2772	cf::cfg_load;
2105	cf::db_load;
2106		2773
2107	# load extensions
2108	warn "load extensions";	2774	warn "loading extensions";
2109	cf::load_extensions;	2775	cf::load_extensions;
2110		2776
2111	# reattach attachments to objects	2777	warn "reattaching attachments to objects/players";
2112	warn "reattach";	2778	_global_reattach; # objects, sockets
2113	_global_reattach;	2779	warn "reattaching attachments to maps";
2114	};	2780	reattach $_ for values %MAP;
		2781	warn "reattaching attachments to players";
		2782	reattach $_ for values %PLAYER;
2115		2783
2116	if ($@) {	2784	warn "leaving sync_job";
		2785
		2786	1
		2787	} or do {
2117	warn $@;	2788	warn $@;
2118	warn "error while reloading, exiting.";	2789	warn "error while reloading, exiting.";
2119	exit 1;	2790	exit 1;
2120	}	2791	};
2121		2792
2122	warn "reloaded successfully";	2793	warn "reloaded";
2123	};	2794	};
2124		2795
2125	#############################################################################	2796	our $RELOAD_WATCHER; # used only during reload
2126		2797
2127	unless ($LINK_MAP) {	2798	sub reload_perl() {
2128	$LINK_MAP = cf::map::new;	2799	# doing reload synchronously and two reloads happen back-to-back,
		2800	# coro crashes during coro_state_free->destroy here.
2129		2801
2130	$LINK_MAP->width (41);	2802	$RELOAD_WATCHER ||= Event->timer (
2131	$LINK_MAP->height (41);	2803	reentrant => 0,
2132	$LINK_MAP->alloc;
2133	$LINK_MAP->path ("{link}");
2134	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2135	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2136
2137	# dirty hack because... archetypes are not yet loaded
2138	Event->timer (
2139	after => 2,	2804	after => 0,
		2805	data => WF_AUTOCANCEL,
2140	cb => sub {	2806	cb => sub {
2141	$_[0]->w->cancel;	2807	do_reload_perl;
2142		2808	undef $RELOAD_WATCHER;
2143	# provide some exits "home"
2144	my $exit = cf::object::new "exit";
2145
2146	$exit->slaying ($EMERGENCY_POSITION->[0]);
2147	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2148	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2149
2150	$LINK_MAP->insert ($exit->clone, 19, 19);
2151	$LINK_MAP->insert ($exit->clone, 19, 20);
2152	$LINK_MAP->insert ($exit->clone, 19, 21);
2153	$LINK_MAP->insert ($exit->clone, 20, 19);
2154	$LINK_MAP->insert ($exit->clone, 20, 21);
2155	$LINK_MAP->insert ($exit->clone, 21, 19);
2156	$LINK_MAP->insert ($exit->clone, 21, 20);
2157	$LINK_MAP->insert ($exit->clone, 21, 21);
2158
2159	$exit->destroy;
2160	});	2809	},
2161		2810	);
2162	$LINK_MAP->{deny_save} = 1;
2163	$LINK_MAP->{deny_reset} = 1;
2164
2165	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2166	}	2811	}
2167
2168	register "<global>", __PACKAGE__;
2169		2812
2170	register_command "reload" => sub {	2813	register_command "reload" => sub {
2171	my ($who, $arg) = @_;	2814	my ($who, $arg) = @_;
2172		2815
2173	if ($who->flag (FLAG_WIZ)) {	2816	if ($who->flag (FLAG_WIZ)) {
2174	$who->message ("start of reload.");
2175	reload;
2176	$who->message ("end of reload.");	2817	$who->message ("reloading server.");
		2818	async { reload_perl };
2177	}	2819	}
2178	};	2820	};
2179		2821
2180	unshift @INC, $LIBDIR;	2822	unshift @INC, $LIBDIR;
2181		2823
		2824	my $bug_warning = 0;
		2825
		2826	our @WAIT_FOR_TICK;
		2827	our @WAIT_FOR_TICK_BEGIN;
		2828
		2829	sub wait_for_tick {
		2830	return unless $TICK_WATCHER->is_active;
		2831	return if $Coro::current == $Coro::main;
		2832
		2833	my $signal = new Coro::Signal;
		2834	push @WAIT_FOR_TICK, $signal;
		2835	$signal->wait;
		2836	}
		2837
		2838	sub wait_for_tick_begin {
		2839	return unless $TICK_WATCHER->is_active;
		2840	return if $Coro::current == $Coro::main;
		2841
		2842	my $signal = new Coro::Signal;
		2843	push @WAIT_FOR_TICK_BEGIN, $signal;
		2844	$signal->wait;
		2845	}
		2846
		2847	my $min = 1e6;#d#
		2848	my $avg = 10;
2182	$TICK_WATCHER = Event->timer (	2849	$TICK_WATCHER = Event->timer (
2183	reentrant => 0,	2850	reentrant => 0,
		2851	parked => 1,
2184	prio => 0,	2852	prio => 0,
2185	at => $NEXT_TICK || $TICK,	2853	at => $NEXT_TICK || $TICK,
2186	data => WF_AUTOCANCEL,	2854	data => WF_AUTOCANCEL,
2187	cb => sub {	2855	cb => sub {
		2856	if ($Coro::current != $Coro::main) {
		2857	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2858	unless ++$bug_warning > 10;
		2859	return;
		2860	}
		2861
		2862	$NOW = $tick_start = Event::time;
		2863
2188	cf::server_tick; # one server iteration	2864	cf::server_tick; # one server iteration
		2865
		2866	0 && sync_job {#d#
		2867	for(1..10) {
		2868	my $t = Event::time;
		2869	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2870	or die;
		2871
		2872	$map->width (50);
		2873	$map->height (50);
		2874	$map->alloc;
		2875	$map->_load_objects ("/tmp/x.map", 1);
		2876	my $t = Event::time - $t;
		2877
		2878	#next unless $t < 0.0013;#d#
		2879	if ($t < $min) {
		2880	$min = $t;
		2881	}
		2882	$avg = $avg * 0.99 + $t * 0.01;
		2883	}
		2884	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2885	exit 0;
		2886	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2887	};
		2888
2189	$RUNTIME += $TICK;	2889	$RUNTIME += $TICK;
2190	$NEXT_TICK += $TICK;	2890	$NEXT_TICK += $TICK;
2191		2891
		2892	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2893	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2894	Coro::async_pool {
		2895	write_runtime
		2896	or warn "ERROR: unable to write runtime file: $!";
		2897	};
		2898	}
		2899
		2900	# my $AFTER = Event::time;
		2901	# warn $AFTER - $NOW;#d#
		2902
		2903	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2904	$sig->send;
		2905	}
		2906	while (my $sig = shift @WAIT_FOR_TICK) {
		2907	$sig->send;
		2908	}
		2909
		2910	$NOW = Event::time;
		2911
2192	# if we are delayed by four ticks or more, skip them all	2912	# if we are delayed by four ticks or more, skip them all
2193	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2913	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2194		2914
2195	$TICK_WATCHER->at ($NEXT_TICK);	2915	$TICK_WATCHER->at ($NEXT_TICK);
2196	$TICK_WATCHER->start;	2916	$TICK_WATCHER->start;
		2917
		2918	$LOAD = ($NOW - $tick_start) / $TICK;
		2919	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2920
		2921	_post_tick;
		2922
		2923
2197	},	2924	},
2198	);	2925	);
2199		2926
		2927	{
2200	IO::AIO::max_poll_time $TICK * 0.2;	2928	BDB::max_poll_time $TICK * 0.1;
2201		2929	$BDB_POLL_WATCHER = Event->io (
2202	Event->io (	2930	reentrant => 0,
2203	fd => IO::AIO::poll_fileno,	2931	fd => BDB::poll_fileno,
2204	poll => 'r',	2932	poll => 'r',
2205	prio => 5,	2933	prio => 0,
2206	data => WF_AUTOCANCEL,
2207	cb => \&IO::AIO::poll_cb,
2208	);
2209
2210	Event->timer (
2211	data => WF_AUTOCANCEL,	2934	data => WF_AUTOCANCEL,
2212	after => 0,	2935	cb => \&BDB::poll_cb,
2213	interval => 10,	2936	);
2214	cb => sub {	2937	BDB::min_parallel 8;
2215	(Coro::unblock_sub {	2938
2216	write_runtime	2939	BDB::set_sync_prepare {
2217	or warn "ERROR: unable to write runtime file: $!";	2940	my $status;
		2941	my $current = $Coro::current;
		2942	(
		2943	sub {
		2944	$status = $!;
		2945	$current->ready; undef $current;
		2946	},
		2947	sub {
		2948	Coro::schedule while defined $current;
		2949	$! = $status;
		2950	},
		2951	)
		2952	};
		2953
		2954	unless ($DB_ENV) {
		2955	$DB_ENV = BDB::db_env_create;
		2956
		2957	cf::sync_job {
		2958	eval {
		2959	BDB::db_env_open
		2960	$DB_ENV,
		2961	$BDBDIR,
		2962	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2963	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2964	0666;
		2965
		2966	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2967
		2968	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2969	$DB_ENV->set_lk_detect;
		2970	};
		2971
		2972	cf::cleanup "db_env_open(db): $@" if $@;
2218	})->();	2973	};
2219	},	2974	}
2220	);	2975	}
		2976
		2977	{
		2978	IO::AIO::min_parallel 8;
		2979
		2980	undef $Coro::AIO::WATCHER;
		2981	IO::AIO::max_poll_time $TICK * 0.1;
		2982	$AIO_POLL_WATCHER = Event->io (
		2983	reentrant => 0,
		2984	data => WF_AUTOCANCEL,
		2985	fd => IO::AIO::poll_fileno,
		2986	poll => 'r',
		2987	prio => 6,
		2988	cb => \&IO::AIO::poll_cb,
		2989	);
		2990	}
		2991
		2992	my $_log_backtrace;
		2993
		2994	sub _log_backtrace {
		2995	my ($msg, @addr) = @_;
		2996
		2997	$msg =~ s/\n//;
		2998
		2999	# limit the # of concurrent backtraces
		3000	if ($_log_backtrace < 2) {
		3001	++$_log_backtrace;
		3002	async {
		3003	my @bt = fork_call {
		3004	@addr = map { sprintf "%x", $_ } @addr;
		3005	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3006	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3007	or die "addr2line: $!";
		3008
		3009	my @funcs;
		3010	my @res = <$fh>;
		3011	chomp for @res;
		3012	while (@res) {
		3013	my ($func, $line) = splice @res, 0, 2, ();
		3014	push @funcs, "[$func] $line";
		3015	}
		3016
		3017	@funcs
		3018	};
		3019
		3020	LOG llevInfo, "[ABT] $msg\n";
		3021	LOG llevInfo, "[ABT] $_\n" for @bt;
		3022	--$_log_backtrace;
		3023	};
		3024	} else {
		3025	LOG llevInfo, "[ABT] $msg\n";
		3026	LOG llevInfo, "[ABT] [suppressed]\n";
		3027	}
		3028	}
		3029
		3030	# load additional modules
		3031	use cf::pod;
2221		3032
2222	END { cf::emergency_save }	3033	END { cf::emergency_save }
2223		3034
2224	1	3035	1
2225		3036

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