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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.269 by root, Tue May 22 21:35:26 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 $ref
174		245
175	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		247
184	=item cf::lock_wait $string	248	=item cf::lock_wait $string
185		249
186	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
187		251
…		…
193	returned.	257	returned.
194		258
195	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
196	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
197		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
198	=cut	266	=cut
199		267
200	our %LOCK;	268	our %LOCK;
201		269
202	sub lock_wait($) {	270	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
223	}	291	}
224	}	292	}
225		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
226	sub freeze_mainloop {	300	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
228		302
229	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
230	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
231	$guard	307	$guard
232	}	308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
233		319
234	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
235		321
236	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
237	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
246		332
247	sub sync_job(&) {	333	sub sync_job(&) {
248	my ($job) = @_;	334	my ($job) = @_;
249		335
250	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
251	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
253		341
254	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	343	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	344	my $freeze_guard = freeze_mainloop;
257		345
258	my $busy = 1;	346	my $busy = 1;
259	my @res;	347	my @res;
260		348
261	(Coro::async_pool {	349	(async {
262	@res = eval { $job->() };	350	@res = eval { $job->() };
263	warn $@ if $@;	351	warn $@ if $@;
264	undef $busy;	352	undef $busy;
265	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
266		354
267	while ($busy) {	355	while ($busy) {
268	Coro::cede_notself;	356	Coro::cede or Event::one_event;
269	Event::one_event unless Coro::nready;
270	}	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
271		365
272	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
273	} else {	367	} else {
274	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
275		369
276	$job->()	370	$job->()
277	}	371	}
278	}	372	}
279		373
280	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
281		375
282	Creates (and readies) and returns a new coro. This coro is automcatially	376	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
284		378
285	=cut	379	=cut
286		380
287	sub coro(&) {	381	sub async_ext(&) {
288	my $cb = shift;	382	my $cb = shift;
289		383
290	my $coro = &Coro::async_pool ($cb);	384	my $coro = &Coro::async ($cb);
291		385
292	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
294	});	388	});
295	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
296		390
297	$coro	391	$coro
298	}	392	}
299		393
300	sub write_runtime {	394	sub write_runtime {
301	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";
302		405
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
304	or return;	407	or return;
305		408
		409	my $value = $cf::RUNTIME + 90 + 10;
306	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
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;	414	and return;
309		415
		416	# always fsync - this file is important
310	aio_fsync $fh	417	aio_fsync $fh
311	and return;	418	and return;
312		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
313	close $fh	423	close $fh
314	or return;	424	or return;
315		425
316	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
317	and return;	427	and return;
318		428
		429	warn "runtime file written.\n";#d#
		430
319	1	431	1
320	}	432	}
321		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
322	=back	445	=back
323		446
324	=cut	447	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		448
446	#############################################################################	449	#############################################################################
447		450
448	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
449		452
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	579	our @CB_MAP = ();
577		580
578	my %attachment;	581	my %attachment;
579		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
580	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
582		591
583	use sort 'stable';	592	use sort 'stable';
584		593
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
619		628
620	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		633
625	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	635	my $pkg = shift @arg;
627		636
628	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
669	if (ref $_[0]) {	678	if (ref $_[0]) {
670	_object_attach @_;	679	_object_attach @_;
671	} else {	680	} else {
672	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
673	}	682	}
		683	_recalc_want;
674	};	684	};
675		685
676	# all those should be optimised	686	# all those should be optimised
677	sub cf::attachable::detach {	687	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
682	reattach ($obj);	692	reattach ($obj);
683	} else {	693	} else {
684	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
685	}	695	}
		696	_recalc_want;
686	};	697	};
687		698
688	sub cf::attachable::attached {	699	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
690		701
…		…
755	# object support	766	# object support
756		767
757	sub reattach {	768	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		773
761	my $registry = $obj->registry;	774	my $registry = $obj->registry;
762		775
763	@$registry = ();	776	@$registry = ();
764		777
…		…
811	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
812		825
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	830	close $fh;
818		831
819	if (@$objs) {	832	if (@$objs) {
820	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) {
821	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	838	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
827	}	840	}
828	} else {	841	} else {
829	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
896	=cut	909	=cut
897		910
898	sub register_extcmd {	911	sub register_extcmd {
899	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
900		913
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
905	}	915	}
906		916
907	cf::player->attach (	917	cf::player->attach (
908	on_command => sub {	918	on_command => sub {
909	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
922		932
923	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
924		934
925	if (ref $msg) {	935	if (ref $msg) {
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
928	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
929	}	939	}
930	}	940	}
931	} else {	941	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
934		944
935	cf::override;	945	cf::override;
936	},	946	},
937	);	947	);
938		948
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	sub load_extension {	949	sub load_extension {
946	my ($path) = @_;	950	my ($path) = @_;
947		951
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
949	my $base = $1;	953	my $base = $1;
950	my $pkg = $1;	954	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
953		957
954	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
955		959
956	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
957	or die "$path: $!";	961	or die "$path: $!";
958		962
959	my $source =	963	my $source =
960	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
963	. "\n};\n1";	967	. "\n};\n1";
964		968
965	eval $source	969	unless (eval $source) {
966	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
967	: "extension disabled.\n";	971	: "extension disabled.\n";
968		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
969	push @exts, $pkg;	973	warn $@;
970	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
971		975	exit 1;
972	# no strict 'refs';	976	}
973	# @{"$pkg\::ISA"} = ext::;	977	die $@;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	978	}
988		979
989	# remove commands	980	push @EXTS, $pkg;
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}	981	}
1014		982
1015	sub load_extensions {	983	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;	985	next unless -r $ext;
…		…
1021	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1022	}	990	}
1023	}	991	}
1024		992
1025	#############################################################################	993	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062		994
1063	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1064		996
1065	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1066		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1067	=head3 cf::player	1005	=head3 cf::player
1068		1006
1069	=over 4	1007	=over 4
1070		1008
1071	=item cf::player::exists $login	1009	=item cf::player::find $login
1072		1010
1073	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1074		1012
1075	=cut	1013	=cut
1076		1014
1077	sub cf::player::exists($) {	1015	sub playerdir($) {
1078	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1080	}	1018	}
1081		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
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1083		1192
1084	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1085		1194
1086	=cut	1195	=cut
1087		1196
1088	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1089	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1090		1199
1091	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1092		1201
1093	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		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
1094	}	1244	}
1095		1245
1096	=back	1246	=back
1097
1098		1247
1099	=head3 cf::map	1248	=head3 cf::map
1100		1249
1101	=over 4	1250	=over 4
1102		1251
…		…
1105	package cf::map;	1254	package cf::map;
1106		1255
1107	use Fcntl;	1256	use Fcntl;
1108	use Coro::AIO;	1257	use Coro::AIO;
1109		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1110	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1112		1265
1113	sub generate_random_map {	1266	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1269	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$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},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(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"
1130	}	1411	}
1131		1412
1132	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1133	# all maps in C++...	1414	# all maps in C++...
1134	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1136		1417
1137	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1139	}	1420	}
1140		1421
		1422	sub unlink_save {
		1423	my ($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
1141	sub try_load_header($) {	1430	sub load_header_from($) {
1142	my ($path) = @_;	1431	my ($self, $path) = @_;
1143		1432
1144	utf8::encode $path;	1433	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1146	or return;	1438	or return;
1147		1439
1148	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
1149	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1150		1486
1151	# for better error messages only, will be overwritten	1487	$self->default_region (cf::region::find_by_path $self->{path})
1152	$map->path ($path);	1488	unless $self->default_region;
1153		1489
1154	$map->load_header ($path)	1490	1
1155	or return;
1156
1157	$map->{load_path} = $path;
1158
1159	$map
1160	}	1491	}
1161		1492
1162	sub find;	1493	sub find;
1163	sub find {	1494	sub find {
1164	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1165		1496
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1498
1171	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1172		1500
1173	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1175		1503	my $map = new_from_path cf::map $path
1176	# do it the slow way
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1504	or return;
1195		1505
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1208		1507
1209	Coro::cede;	1508	$map->load_header
		1509	or return;
1210		1510
1211	if ($map->should_reset) {	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;
1212	$map->reset;	1514	$map->reset;
1213	undef $guard;	1515	undef $guard;
1214	$map = find $path	1516	return find $path;
1215	or return;
1216	}	1517	}
1217		1518
1218	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1219	}	1520	}
1220	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1221		1525
1222	sub load {	1526	sub load {
1223	my ($self) = @_;	1527	my ($self) = @_;
1224		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1225	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1227		1535
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1229		1537
1230	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1231		1539
1232	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1233	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1234	or return;	1546	or return;
1235		1547
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	1549	if delete $self->{load_original};
1238		1550
1239	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	1552	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1242	$self->clear_unique_items;	1554	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1244	}	1556	}
1245	}	1557	}
1246		1558
1247	Coro::cede;	1559	Coro::cede;
1248
1249	# now do the right thing for maps	1560	# now do the right thing for maps
1250	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1261	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;
1262	$self->activate;	1573	$self->activate;
1263	}	1574	}
1264		1575
1265	Coro::cede;
1266
1267	$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	$neigh->load;
		1612	}
1268	}	1613	}
1269		1614
1270	sub find_sync {	1615	sub find_sync {
1271	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1272		1617
1273	cf::sync_job { cf::map::find $path, $origin }	1618	cf::sync_job { find $path, $origin }
1274	}	1619	}
1275		1620
1276	sub do_load_sync {	1621	sub do_load_sync {
1277	my ($map) = @_;	1622	my ($map) = @_;
1278		1623
1279	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1280	}	1625	}
1281		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	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
		1655	}
		1656
1282	sub save {	1657	sub save {
1283	my ($self) = @_;	1658	my ($self) = @_;
1284		1659
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1286		1661
1287	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1288		1663
1289	return unless $self->dirty;	1664	return unless $self->dirty;
1290		1665
1291	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		1668
1294	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1295		1670
1296	return if $self->{deny_save};	1671	return if $self->{deny_save};
1297		1672
1298	local $self->{last_access} = $self->last_access;#d#	1673	local $self->{last_access} = $self->last_access;#d#
1299		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1300	if ($uniq) {	1679	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	1682	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	1684	}
1306	}	1685	}
1307		1686
1308	sub swap_out {	1687	sub swap_out {
1309	my ($self) = @_;	1688	my ($self) = @_;
…		…
1323		1702
1324	sub reset_at {	1703	sub reset_at {
1325	my ($self) = @_;	1704	my ($self) = @_;
1326		1705
1327	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1329	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1330		1709
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		1712
…		…
1338	my ($self) = @_;	1717	my ($self) = @_;
1339		1718
1340	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1341	}	1720	}
1342		1721
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	1722	sub reset {
1365	my ($self) = @_;	1723	my ($self) = @_;
1366		1724
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		1726
1369	return if $self->players;	1727	return if $self->players;
1370	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1371		1729
1372	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1373		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
1374	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1375		1745
1376	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1377		1747
1378	$self->unlink_save;	1748	$self->unlink_save;
1379	$self->destroy;	1749	$self->destroy;
…		…
1382	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1383		1753
1384	sub nuke {	1754	sub nuke {
1385	my ($self) = @_;	1755	my ($self) = @_;
1386		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1390	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1391	}	1770	}
1392		1771
1393	sub customise_for {	1772	=item cf::map::unique_maps
1394	my ($map, $ob) = @_;
1395		1773
1396	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1398	}
1399		1776
1400	$map	1777	=cut
1401	}
1402		1778
1403	sub emergency_save {	1779	sub unique_maps() {
1404	my $freeze_guard = cf::freeze_mainloop;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1405		1782
1406	warn "enter emergency map save\n";	1783	my @paths;
1407		1784
1408	cf::sync_job {	1785	for (@$files) {
1409	warn "begin emergency map save\n";	1786	utf8::decode $_;
1410	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1411	};	1791	}
1412		1792
1413	warn "end emergency map save\n";	1793	\@paths
1414	}	1794	}
1415		1795
1416	package cf;	1796	package cf;
1417		1797
1418	=back	1798	=back
1419		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
1420		1826
1421	=head3 cf::object::player	1827	=head3 cf::object::player
1422		1828
1423	=over 4	1829	=over 4
1424		1830
…		…
1464		1870
1465	=item $player_object->enter_link	1871	=item $player_object->enter_link
1466		1872
1467	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}>).
1468		1874
1469	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
1470	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1471		1877
		1878	Will never block.
		1879
1472	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1473		1881
1474	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	1885	fails, to the emergency map position.
1478		1886
1479	Might block.	1887	Might block.
1480		1888
1481	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1482		1900
1483	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1484	my ($self) = @_;	1902	my ($self) = @_;
1485		1903
1486	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1487		1905
1488	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		1907
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	1909	if $self->map;
1492		1910
1493	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	1912	}
1495		1913
1496	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1498		1916
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1519		1937
1520	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1521		1940
		1941	return unless $self->contr->active;
1522	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1524	}	1946	}
1525		1947
1526	cf::player->attach (	1948	cf::player->attach (
1527	on_logout => sub {	1949	on_logout => sub {
…		…
1539		1961
1540	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes	1963	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1544	Coro::async_pool {	1966	(async {
		1967	$pl->ob->reply (undef,
		1968	"There was an internal problem at your last logout, "
		1969	. "the server will try to bring you to your intended destination in a second.",
		1970	cf::NDI_RED);
1545	# we need this sleep as the login has a concurrent enter_exit running	1971	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn	1972	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1549	};	1975	})->prio (2);
1550	}	1976	}
1551	},	1977	},
1552	);	1978	);
1553		1979
1554	=item $player_object->goto ($path, $x, $y)	1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		1981
		1982	Moves the player to the given map-path and coordinates by first freezing
		1983	her, loading and preparing them map, calling the provided $check callback
		1984	that has to return the map if sucecssful, and then unfreezes the player on
		1985	the new (success) or old (failed) map position.
1555		1986
1556	=cut	1987	=cut
1557		1988
1558	sub cf::object::player::goto {	1989	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	1990	my ($self, $path, $x, $y, $check) = @_;
1560		1991
1561	$self->enter_link;	1992	$self->enter_link;
1562		1993
1563	(Coro::async_pool {	1994	(async {
1564	$path = new cf::path $path;	1995	my $map = eval {
1565
1566	my $map = cf::map::find $path->as_string;	1996	my $map = cf::map::find $path;
		1997
		1998	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	1999	$map = $map->customise_for ($self);
1568		2000	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2001	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2002	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2003	}
		2004
		2005	$map
		2006	};
		2007
		2008	if ($@) {
		2009	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2010	LOG llevError | logBacktrace, Carp::longmess $@;
		2011	}
1573		2012
1574	$self->leave_link ($map, $x, $y);	2013	$self->leave_link ($map, $x, $y);
1575	})->prio (1);	2014	})->prio (1);
1576	}	2015	}
1577		2016
…		…
1581		2020
1582	sub parse_random_map_params {	2021	sub parse_random_map_params {
1583	my ($spec) = @_;	2022	my ($spec) = @_;
1584		2023
1585	my $rmp = { # defaults	2024	my $rmp = { # defaults
1586	xsize => 10,	2025	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2026	ysize => (cf::rndm 15, 40),
		2027	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2028	#layout => string,
1588	};	2029	};
1589		2030
1590	for (split /\n/, $spec) {	2031	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2032	my ($k, $v) = split /\s+/, $_, 2;
1592		2033
…		…
1596	$rmp	2037	$rmp
1597	}	2038	}
1598		2039
1599	sub prepare_random_map {	2040	sub prepare_random_map {
1600	my ($exit) = @_;	2041	my ($exit) = @_;
		2042
		2043	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		2044
1602	# all this does is basically replace the /! path by	2045	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	2046	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	2047	# that depends on the exit object
1605		2048
1606	my $rmp = parse_random_map_params $exit->msg;	2049	my $rmp = parse_random_map_params $exit->msg;
1607		2050
1608	if ($exit->map) {	2051	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2052	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2053	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2054	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2055	$rmp->{origin_y} = $exit->y;
1613	}	2056	}
1614		2057
1615	$rmp->{random_seed} ||= $exit->random_seed;	2058	$rmp->{random_seed} ||= $exit->random_seed;
1616		2059
1617	my $data = cf::to_json $rmp;	2060	my $data = cf::to_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	2061	my $md5 = Digest::MD5::md5_hex $data;
		2062	my $meta = "$RANDOMDIR/$md5.meta";
1619		2063
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2064	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2065	aio_write $fh, 0, (length $data), $data, 0;
		2066	undef $fh;
		2067	aio_rename "$meta~", $meta;
1622		2068
1623	$exit->slaying ("?random/$md5");	2069	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2070	$exit->msg (undef);
1625	}	2071	}
1626	}	2072	}
…		…
1628	sub cf::object::player::enter_exit {	2074	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2075	my ($self, $exit) = @_;
1630		2076
1631	return unless $self->type == cf::PLAYER;	2077	return unless $self->type == cf::PLAYER;
1632		2078
		2079	if ($exit->slaying eq "/!") {
		2080	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2081	# the problem is that $exit might not survive long enough
		2082	# so it needs to be done right now, right here
		2083	cf::sync_job { prepare_random_map $exit };
		2084	}
		2085
		2086	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2087	my $hp = $exit->stats->hp;
		2088	my $sp = $exit->stats->sp;
		2089
1633	$self->enter_link;	2090	$self->enter_link;
1634		2091
1635	(Coro::async_pool {	2092	(async {
1636	$self->deactivate_recursive; # just to be sure	2093	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	2094	unless (eval {
1638	prepare_random_map $exit	2095	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		2096
1644	1;	2097	1;
1645	}) {	2098	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2099	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "I'll try to bring you back to the map you were before. "	2100	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2101	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2102	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2103
1651	warn "ERROR in enter_exit: $@";	2104	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2105	$self->leave_link;
1653	}	2106	}
1654	})->prio (1);	2107	})->prio (1);
…		…
1667		2120
1668	sub cf::client::send_drawinfo {	2121	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2122	my ($self, $text, $flags) = @_;
1670		2123
1671	utf8::encode $text;	2124	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2125	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2126	}
1674		2127
		2128	=item $client->ext_event ($type, %msg)
		2129
		2130	Sends an exti event to the client.
		2131
		2132	=cut
		2133
		2134	sub cf::client::ext_event($$%) {
		2135	my ($self, $type, %msg) = @_;
		2136
		2137	$msg{msgtype} = "event_$type";
		2138	$self->send_packet ("ext " . cf::to_json \%msg);
		2139	}
1675		2140
1676	=item $success = $client->query ($flags, "text", \&cb)	2141	=item $success = $client->query ($flags, "text", \&cb)
1677		2142
1678	Queues a query to the client, calling the given callback with	2143	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2144	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1708	# get handled first	2173	# get handled first
1709	my $queue = delete $ns->{query_queue}	2174	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2175	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2176
1712	(shift @$queue)->[1]->($msg);	2177	(shift @$queue)->[1]->($msg);
		2178	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2179
1714	push @{ $ns->{query_queue} }, @$queue;	2180	push @{ $ns->{query_queue} }, @$queue;
1715		2181
1716	if (@{ $ns->{query_queue} } == @$queue) {	2182	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2183	if (@$queue) {
…		…
1721	}	2187	}
1722	}	2188	}
1723	},	2189	},
1724	);	2190	);
1725		2191
1726	=item $client->coro (\&cb)	2192	=item $client->async (\&cb)
1727		2193
1728	Create a new coroutine, running the specified callback. The coroutine will	2194	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2195	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	2196	or loss of connection).
1731		2197
1732	=cut	2198	=cut
1733		2199
1734	sub cf::client::coro {	2200	sub cf::client::async {
1735	my ($self, $cb) = @_;	2201	my ($self, $cb) = @_;
1736		2202
1737	my $coro = &Coro::async_pool ($cb);	2203	my $coro = &Coro::async ($cb);
1738		2204
1739	$coro->on_destroy (sub {	2205	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2206	delete $self->{_coro}{$coro+0};
1741	});	2207	});
1742		2208
…		…
1775		2241
1776	# here we export the classes and methods available to script code	2242	# here we export the classes and methods available to script code
1777		2243
1778	=pod	2244	=pod
1779		2245
1780	The following fucntions and emthods are available within a safe environment:	2246	The following functions and methods are available within a safe environment:
1781		2247
1782	cf::object contr pay_amount pay_player map	2248	cf::object contr pay_amount pay_player map
1783	cf::object::player player	2249	cf::object::player player
1784	cf::player peaceful	2250	cf::player peaceful
1785	cf::map trigger	2251	cf::map trigger
…		…
1870	#############################################################################	2336	#############################################################################
1871		2337
1872	=head2 EXTENSION DATABASE SUPPORT	2338	=head2 EXTENSION DATABASE SUPPORT
1873		2339
1874	Crossfire maintains a very simple database for extension use. It can	2340	Crossfire maintains a very simple database for extension use. It can
1875	currently store anything that can be serialised using Storable, which	2341	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1876	excludes objects.	2342	convert to/from binary).
1877		2343
1878	The parameter C<$family> should best start with the name of the extension	2344	The parameter C<$family> should best start with the name of the extension
1879	using it, it should be unique.	2345	using it, it should be unique.
1880		2346
1881	=over 4	2347	=over 4
1882		2348
1883	=item $hashref = cf::db_get $family
1884
1885	Return a hashref for use by the extension C<$family>, which can be
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888
1889	=item $value = cf::db_get $family => $key	2349	=item $value = cf::db_get $family => $key
1890		2350
1891	Returns a single value from the database	2351	Returns a single value from the database.
1892
1893	=item cf::db_put $family => $hashref
1894
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897		2352
1898	=item cf::db_put $family => $key => $value	2353	=item cf::db_put $family => $key => $value
1899		2354
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you	2355	Stores the given C<$value> in the family.
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910		2356
1911	=cut	2357	=cut
1912		2358
1913	our $DB;	2359	our $DB;
1914		2360
1915	{	2361	sub db_init {
1916	my $path = cf::localdir . "/database.pst";	2362	unless ($DB) {
		2363	$DB = BDB::db_create $DB_ENV;
1917		2364
1918	sub db_load() {	2365	cf::sync_job {
1919	$DB = stat $path ? Storable::retrieve $path : { };	2366	eval {
1920	}	2367	$DB->set_flags (BDB::CHKSUM);
1921		2368
1922	my $pid;	2369	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1923		2370	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1924	sub db_save() {	2371	cf::cleanup "db_open(db): $!" if $!;
1925	waitpid $pid, 0 if $pid;	2372	};
1926	if (0 == ($pid = fork)) {	2373	cf::cleanup "db_open(db): $@" if $@;
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}	2374	};
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});	2375	}
		2376	}
1944		2377
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}
1949
1950	sub db_get($;$) {	2378	sub db_get($$) {
1951	@_ >= 2	2379	my $key = "$_[0]/$_[1]";
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955		2380
		2381	cf::sync_job {
		2382	BDB::db_get $DB, undef, $key, my $data;
		2383
		2384	$! ? ()
		2385	: $data
		2386	}
		2387	}
		2388
1956	sub db_put($$;$) {	2389	sub db_put($$$) {
1957	if (@_ >= 3) {	2390	BDB::dbreq_pri 4;
1958	$DB->{$_[0]}{$_[1]} = $_[2];	2391	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1959	} else {	2392	}
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964		2393
1965	cf::global->attach (	2394	=item cf::cache $id => [$paths...], $processversion => $process
1966	prio => 10000,	2395
1967	on_cleanup => sub {	2396	Generic caching function that returns the value of the resource $id,
1968	db_sync;	2397	caching and regenerating as required.
		2398
		2399	This function can block.
		2400
		2401	=cut
		2402
		2403	sub cache {
		2404	my ($id, $src, $processversion, $process) = @_;
		2405
		2406	my $meta =
		2407	join "\x00",
		2408	$processversion,
		2409	map {
		2410	aio_stat $_
		2411	and Carp::croak "$_: $!";
		2412
		2413	($_, (stat _)[7,9])
		2414	} @$src;
		2415
		2416	my $dbmeta = db_get cache => "$id/meta";
		2417	if ($dbmeta ne $meta) {
		2418	# changed, we may need to process
		2419
		2420	my @data;
		2421	my $md5;
		2422
		2423	for (0 .. $#$src) {
		2424	0 <= aio_load $src->[$_], $data[$_]
		2425	or Carp::croak "$src->[$_]: $!";
1969	},	2426	}
1970	);	2427
		2428	# if processing is expensive, check
		2429	# checksum first
		2430	if (1) {
		2431	$md5 =
		2432	join "\x00",
		2433	$processversion,
		2434	map {
		2435	Coro::cede;
		2436	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2437	} 0.. $#$src;
		2438
		2439
		2440	my $dbmd5 = db_get cache => "$id/md5";
		2441	if ($dbmd5 eq $md5) {
		2442	db_put cache => "$id/meta", $meta;
		2443
		2444	return db_get cache => "$id/data";
		2445	}
		2446	}
		2447
		2448	my $t1 = Time::HiRes::time;
		2449	my $data = $process->(\@data);
		2450	my $t2 = Time::HiRes::time;
		2451
		2452	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2453
		2454	db_put cache => "$id/data", $data;
		2455	db_put cache => "$id/md5" , $md5;
		2456	db_put cache => "$id/meta", $meta;
		2457
		2458	return $data;
		2459	}
		2460
		2461	db_get cache => "$id/data"
1971	}	2462	}
		2463
		2464	=item fork_call { }, $args
		2465
		2466	Executes the given code block with the given arguments in a seperate
		2467	process, returning the results. Everything must be serialisable with
		2468	Coro::Storable. May, of course, block. Note that the executed sub may
		2469	never block itself or use any form of Event handling.
		2470
		2471	=cut
		2472
		2473	sub fork_call(&@) {
		2474	my ($cb, @args) = @_;
		2475
		2476	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2477	# or die "socketpair: $!";
		2478	pipe my $fh1, my $fh2
		2479	or die "pipe: $!";
		2480
		2481	if (my $pid = fork) {
		2482	close $fh2;
		2483
		2484	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2485	$res = Coro::Storable::thaw $res;
		2486
		2487	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2488
		2489	die $$res unless "ARRAY" eq ref $res;
		2490
		2491	return wantarray ? @$res : $res->[-1];
		2492	} else {
		2493	reset_signals;
		2494	local $SIG{__WARN__};
		2495	local $SIG{__DIE__};
		2496	eval {
		2497	close $fh1;
		2498
		2499	my @res = eval { $cb->(@args) };
		2500	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2501	};
		2502
		2503	warn $@ if $@;
		2504	_exit 0;
		2505	}
		2506	}
		2507
		2508
1972		2509
1973	#############################################################################	2510	#############################################################################
1974	# the server's main()	2511	# the server's init and main functions
		2512
		2513	sub load_facedata($) {
		2514	my ($path) = @_;
		2515
		2516	warn "loading facedata from $path\n";
		2517
		2518	my $facedata;
		2519	0 < aio_load $path, $facedata
		2520	or die "$path: $!";
		2521
		2522	$facedata = Coro::Storable::thaw $facedata;
		2523
		2524	$facedata->{version} == 2
		2525	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2526
		2527	{
		2528	my $faces = $facedata->{faceinfo};
		2529
		2530	while (my ($face, $info) = each %$faces) {
		2531	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2532	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2533	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2534	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2535	Coro::cede;
		2536	}
		2537
		2538	while (my ($face, $info) = each %$faces) {
		2539	next unless $info->{smooth};
		2540	my $idx = cf::face::find $face
		2541	or next;
		2542	if (my $smooth = cf::face::find $info->{smooth}) {
		2543	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2544	} else {
		2545	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2546	}
		2547	Coro::cede;
		2548	}
		2549	}
		2550
		2551	{
		2552	my $anims = $facedata->{animinfo};
		2553
		2554	while (my ($anim, $info) = each %$anims) {
		2555	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2556	Coro::cede;
		2557	}
		2558
		2559	cf::anim::invalidate_all; # d'oh
		2560	}
		2561
		2562	1
		2563	}
		2564
		2565	sub reload_regions {
		2566	load_resource_file "$MAPDIR/regions"
		2567	or die "unable to load regions file\n";
		2568	}
		2569
		2570	sub reload_facedata {
		2571	load_facedata "$DATADIR/facedata"
		2572	or die "unable to load facedata\n";
		2573	}
		2574
		2575	sub reload_archetypes {
		2576	load_resource_file "$DATADIR/archetypes"
		2577	or die "unable to load archetypes\n";
		2578	}
		2579
		2580	sub reload_treasures {
		2581	load_resource_file "$DATADIR/treasures"
		2582	or die "unable to load treasurelists\n";
		2583	}
		2584
		2585	sub reload_resources {
		2586	warn "reloading resource files...\n";
		2587
		2588	reload_regions;
		2589	reload_facedata;
		2590	reload_archetypes;
		2591	reload_treasures;
		2592
		2593	warn "finished reloading resource files\n";
		2594	}
		2595
		2596	sub init {
		2597	reload_resources;
		2598	}
1975		2599
1976	sub cfg_load {	2600	sub cfg_load {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	2601	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	2602	or return;
1979		2603
1980	local $/;	2604	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	2605	*CFG = YAML::Syck::Load <$fh>;
1982		2606
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2607	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1984		2608
		2609	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2610	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2611
1985	if (exists $CFG{mlockall}) {	2612	if (exists $CFG{mlockall}) {
1986	eval {	2613	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	2614	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	2615	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	2616	};
1990	warn $@ if $@;	2617	warn $@ if $@;
1991	}	2618	}
1992	}	2619	}
1993		2620
1994	sub main {	2621	sub main {
1995	# we must not ever block the main coroutine	2622	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	2623	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2624	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	2625	(async {
1999	Event::one_event;	2626	Event::one_event;
2000	})->();	2627	})->prio (Coro::PRIO_MAX);
2001	};	2628	};
2002		2629
2003	cfg_load;	2630	cfg_load;
2004	db_load;	2631	db_init;
2005	load_extensions;	2632	load_extensions;
		2633
		2634	$TICK_WATCHER->start;
2006	Event::loop;	2635	Event::loop;
2007	}	2636	}
2008		2637
2009	#############################################################################	2638	#############################################################################
2010	# initialisation	2639	# initialisation and cleanup
2011		2640
		2641	# install some emergency cleanup handlers
		2642	BEGIN {
		2643	for my $signal (qw(INT HUP TERM)) {
		2644	Event->signal (
		2645	reentrant => 0,
		2646	data => WF_AUTOCANCEL,
		2647	signal => $signal,
		2648	prio => 0,
		2649	cb => sub {
		2650	cf::cleanup "SIG$signal";
		2651	},
		2652	);
		2653	}
		2654	}
		2655
		2656	sub emergency_save() {
		2657	my $freeze_guard = cf::freeze_mainloop;
		2658
		2659	warn "enter emergency perl save\n";
		2660
		2661	cf::sync_job {
		2662	# use a peculiar iteration method to avoid tripping on perl
		2663	# refcount bugs in for. also avoids problems with players
		2664	# and maps saved/destroyed asynchronously.
		2665	warn "begin emergency player save\n";
		2666	for my $login (keys %cf::PLAYER) {
		2667	my $pl = $cf::PLAYER{$login} or next;
		2668	$pl->valid or next;
		2669	$pl->save;
		2670	}
		2671	warn "end emergency player save\n";
		2672
		2673	warn "begin emergency map save\n";
		2674	for my $path (keys %cf::MAP) {
		2675	my $map = $cf::MAP{$path} or next;
		2676	$map->valid or next;
		2677	$map->save;
		2678	}
		2679	warn "end emergency map save\n";
		2680
		2681	warn "begin emergency database checkpoint\n";
		2682	BDB::db_env_txn_checkpoint $DB_ENV;
		2683	warn "end emergency database checkpoint\n";
		2684	};
		2685
		2686	warn "leave emergency perl save\n";
		2687	}
		2688
		2689	sub post_cleanup {
		2690	my ($make_core) = @_;
		2691
		2692	warn Carp::longmess "post_cleanup backtrace"
		2693	if $make_core;
		2694	}
		2695
2012	sub reload() {	2696	sub do_reload_perl() {
2013	# can/must only be called in main	2697	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	2698	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	2699	warn "can only reload from main coroutine";
2016	return;	2700	return;
2017	}	2701	}
2018		2702
2019	warn "reloading...";	2703	warn "reloading...";
2020		2704
2021	my $guard = freeze_mainloop;	2705	warn "entering sync_job";
		2706
		2707	cf::sync_job {
		2708	cf::write_runtime; # external watchdog should not bark
2022	cf::emergency_save;	2709	cf::emergency_save;
		2710	cf::write_runtime; # external watchdog should not bark
2023		2711
2024	eval {	2712	warn "syncing database to disk";
		2713	BDB::db_env_txn_checkpoint $DB_ENV;
		2714
2025	# if anything goes wrong in here, we should simply crash as we already saved	2715	# if anything goes wrong in here, we should simply crash as we already saved
2026		2716
2027	# cancel all watchers	2717	warn "cancelling all WF_AUTOCANCEL watchers";
2028	for (Event::all_watchers) {	2718	for (Event::all_watchers) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	2719	$_->cancel if $_->data & WF_AUTOCANCEL;
2030	}	2720	}
2031		2721
		2722	warn "flushing outstanding aio requests";
		2723	for (;;) {
		2724	BDB::flush;
		2725	IO::AIO::flush;
		2726	Coro::cede;
		2727	last unless IO::AIO::nreqs || BDB::nreqs;
		2728	warn "iterate...";
		2729	}
		2730
		2731	++$RELOAD;
		2732
2032	# cancel all extension coros	2733	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	2734	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	2735	%EXT_CORO = ();
2035		2736
2036	# unload all extensions	2737	warn "removing commands";
2037	for (@exts) {	2738	%COMMAND = ();
		2739
		2740	warn "removing ext commands";
		2741	%EXTCMD = ();
		2742
		2743	warn "unloading/nuking all extensions";
		2744	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	2745	warn "... unloading $pkg";
2039	unload_extension $_;	2746
		2747	if (my $cb = $pkg->can ("unload")) {
		2748	eval {
		2749	$cb->($pkg);
		2750	1
		2751	} or warn "$pkg unloaded, but with errors: $@";
2040	}	2752	}
2041		2753
		2754	warn "... nuking $pkg";
		2755	Symbol::delete_package $pkg;
		2756	}
		2757
2042	# unload all modules loaded from $LIBDIR	2758	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	2759	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2760	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		2761
2046	warn "removing <$k>";	2762	warn "... unloading $k";
2047	delete $INC{$k};	2763	delete $INC{$k};
2048		2764
2049	$k =~ s/\.pm$//;	2765	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	2766	$k =~ s/\//::/g;
2051		2767
…		…
2054	}	2770	}
2055		2771
2056	Symbol::delete_package $k;	2772	Symbol::delete_package $k;
2057	}	2773	}
2058		2774
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	2775	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	2776	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2777	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		2778
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	2779	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	2780	delete $INC{"cf.pm"};
		2781	delete $INC{"cf/pod.pm"};
2072		2782
2073	# don't, removes xs symbols, too,	2783	# don't, removes xs symbols, too,
2074	# and global variables created in xs	2784	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	2785	#Symbol::delete_package __PACKAGE__;
2076		2786
2077	# reload cf.pm	2787	warn "unload completed, starting to reload now";
		2788
2078	warn "reloading cf.pm";	2789	warn "reloading cf.pm";
2079	require cf;	2790	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2791	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		2792
2082	# load config and database again	2793	warn "loading config and database again";
2083	cf::cfg_load;	2794	cf::cfg_load;
2084	cf::db_load;
2085		2795
2086	# load extensions
2087	warn "load extensions";	2796	warn "loading extensions";
2088	cf::load_extensions;	2797	cf::load_extensions;
2089		2798
2090	# reattach attachments to objects	2799	warn "reattaching attachments to objects/players";
2091	warn "reattach";	2800	_global_reattach; # objects, sockets
2092	_global_reattach;	2801	warn "reattaching attachments to maps";
2093	};	2802	reattach $_ for values %MAP;
		2803	warn "reattaching attachments to players";
		2804	reattach $_ for values %PLAYER;
2094		2805
2095	if ($@) {	2806	warn "leaving sync_job";
		2807
		2808	1
		2809	} or do {
2096	warn $@;	2810	warn $@;
2097	warn "error while reloading, exiting.";	2811	warn "error while reloading, exiting.";
2098	exit 1;	2812	exit 1;
2099	}	2813	};
2100		2814
2101	warn "reloaded successfully";	2815	warn "reloaded";
2102	};	2816	};
2103		2817
2104	#############################################################################	2818	our $RELOAD_WATCHER; # used only during reload
2105		2819
2106	unless ($LINK_MAP) {	2820	sub reload_perl() {
2107	$LINK_MAP = cf::map::new;	2821	# doing reload synchronously and two reloads happen back-to-back,
		2822	# coro crashes during coro_state_free->destroy here.
2108		2823
2109	$LINK_MAP->width (41);	2824	$RELOAD_WATCHER ||= Event->timer (
2110	$LINK_MAP->height (41);	2825	reentrant => 0,
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,	2826	after => 0,
		2827	data => WF_AUTOCANCEL,
2119	cb => sub {	2828	cb => sub {
2120	$_[0]->w->cancel;	2829	do_reload_perl;
2121		2830	undef $RELOAD_WATCHER;
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});	2831	},
2140		2832	);
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	2833	}
2146
2147	register "<global>", __PACKAGE__;
2148		2834
2149	register_command "reload" => sub {	2835	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	2836	my ($who, $arg) = @_;
2151		2837
2152	if ($who->flag (FLAG_WIZ)) {	2838	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	2839	$who->message ("reloading server.");
		2840	async { reload_perl };
2156	}	2841	}
2157	};	2842	};
2158		2843
2159	unshift @INC, $LIBDIR;	2844	unshift @INC, $LIBDIR;
2160		2845
		2846	my $bug_warning = 0;
		2847
		2848	our @WAIT_FOR_TICK;
		2849	our @WAIT_FOR_TICK_BEGIN;
		2850
		2851	sub wait_for_tick {
		2852	return unless $TICK_WATCHER->is_active;
		2853	return if $Coro::current == $Coro::main;
		2854
		2855	my $signal = new Coro::Signal;
		2856	push @WAIT_FOR_TICK, $signal;
		2857	$signal->wait;
		2858	}
		2859
		2860	sub wait_for_tick_begin {
		2861	return unless $TICK_WATCHER->is_active;
		2862	return if $Coro::current == $Coro::main;
		2863
		2864	my $signal = new Coro::Signal;
		2865	push @WAIT_FOR_TICK_BEGIN, $signal;
		2866	$signal->wait;
		2867	}
		2868
		2869	my $min = 1e6;#d#
		2870	my $avg = 10;
2161	$TICK_WATCHER = Event->timer (	2871	$TICK_WATCHER = Event->timer (
2162	reentrant => 0,	2872	reentrant => 0,
		2873	parked => 1,
2163	prio => 0,	2874	prio => 0,
2164	at => $NEXT_TICK || $TICK,	2875	at => $NEXT_TICK || $TICK,
2165	data => WF_AUTOCANCEL,	2876	data => WF_AUTOCANCEL,
2166	cb => sub {	2877	cb => sub {
		2878	if ($Coro::current != $Coro::main) {
		2879	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2880	unless ++$bug_warning > 10;
		2881	return;
		2882	}
		2883
		2884	$NOW = $tick_start = Event::time;
		2885
2167	cf::server_tick; # one server iteration	2886	cf::server_tick; # one server iteration
		2887
		2888	0 && sync_job {#d#
		2889	for(1..10) {
		2890	my $t = Event::time;
		2891	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2892	or die;
		2893
		2894	$map->width (50);
		2895	$map->height (50);
		2896	$map->alloc;
		2897	$map->_load_objects ("/tmp/x.map", 1);
		2898	my $t = Event::time - $t;
		2899
		2900	#next unless $t < 0.0013;#d#
		2901	if ($t < $min) {
		2902	$min = $t;
		2903	}
		2904	$avg = $avg * 0.99 + $t * 0.01;
		2905	}
		2906	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2907	exit 0;
		2908	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2909	};
		2910
2168	$RUNTIME += $TICK;	2911	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	2912	$NEXT_TICK += $TICK;
2170		2913
		2914	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2915	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2916	Coro::async_pool {
		2917	write_runtime
		2918	or warn "ERROR: unable to write runtime file: $!";
		2919	};
		2920	}
		2921
		2922	# my $AFTER = Event::time;
		2923	# warn $AFTER - $NOW;#d#
		2924
		2925	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2926	$sig->send;
		2927	}
		2928	while (my $sig = shift @WAIT_FOR_TICK) {
		2929	$sig->send;
		2930	}
		2931
		2932	$NOW = Event::time;
		2933
2171	# if we are delayed by four ticks or more, skip them all	2934	# if we are delayed by four ticks or more, skip them all
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2935	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2173		2936
2174	$TICK_WATCHER->at ($NEXT_TICK);	2937	$TICK_WATCHER->at ($NEXT_TICK);
2175	$TICK_WATCHER->start;	2938	$TICK_WATCHER->start;
		2939
		2940	$LOAD = ($NOW - $tick_start) / $TICK;
		2941	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2942
		2943	_post_tick;
		2944
		2945
2176	},	2946	},
2177	);	2947	);
2178		2948
		2949	{
2179	IO::AIO::max_poll_time $TICK * 0.2;	2950	BDB::max_poll_time $TICK * 0.1;
2180		2951	$BDB_POLL_WATCHER = Event->io (
2181	Event->io (	2952	reentrant => 0,
2182	fd => IO::AIO::poll_fileno,	2953	fd => BDB::poll_fileno,
2183	poll => 'r',	2954	poll => 'r',
2184	prio => 5,	2955	prio => 0,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,	2956	data => WF_AUTOCANCEL,
2191	after => 0,	2957	cb => \&BDB::poll_cb,
2192	interval => 10,	2958	);
2193	cb => sub {	2959	BDB::min_parallel 8;
2194	(Coro::unblock_sub {	2960
2195	write_runtime	2961	BDB::set_sync_prepare {
2196	or warn "ERROR: unable to write runtime file: $!";	2962	my $status;
		2963	my $current = $Coro::current;
		2964	(
		2965	sub {
		2966	$status = $!;
		2967	$current->ready; undef $current;
		2968	},
		2969	sub {
		2970	Coro::schedule while defined $current;
		2971	$! = $status;
		2972	},
		2973	)
		2974	};
		2975
		2976	unless ($DB_ENV) {
		2977	$DB_ENV = BDB::db_env_create;
		2978
		2979	cf::sync_job {
		2980	eval {
		2981	BDB::db_env_open
		2982	$DB_ENV,
		2983	$BDBDIR,
		2984	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2985	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2986	0666;
		2987
		2988	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2989
		2990	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2991	$DB_ENV->set_lk_detect;
		2992	};
		2993
		2994	cf::cleanup "db_env_open(db): $@" if $@;
2197	})->();	2995	};
2198	},	2996	}
2199	);	2997	}
		2998
		2999	{
		3000	IO::AIO::min_parallel 8;
		3001
		3002	undef $Coro::AIO::WATCHER;
		3003	IO::AIO::max_poll_time $TICK * 0.1;
		3004	$AIO_POLL_WATCHER = Event->io (
		3005	reentrant => 0,
		3006	data => WF_AUTOCANCEL,
		3007	fd => IO::AIO::poll_fileno,
		3008	poll => 'r',
		3009	prio => 6,
		3010	cb => \&IO::AIO::poll_cb,
		3011	);
		3012	}
		3013
		3014	my $_log_backtrace;
		3015
		3016	sub _log_backtrace {
		3017	my ($msg, @addr) = @_;
		3018
		3019	$msg =~ s/\n//;
		3020
		3021	# limit the # of concurrent backtraces
		3022	if ($_log_backtrace < 2) {
		3023	++$_log_backtrace;
		3024	async {
		3025	my @bt = fork_call {
		3026	@addr = map { sprintf "%x", $_ } @addr;
		3027	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3028	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3029	or die "addr2line: $!";
		3030
		3031	my @funcs;
		3032	my @res = <$fh>;
		3033	chomp for @res;
		3034	while (@res) {
		3035	my ($func, $line) = splice @res, 0, 2, ();
		3036	push @funcs, "[$func] $line";
		3037	}
		3038
		3039	@funcs
		3040	};
		3041
		3042	LOG llevInfo, "[ABT] $msg\n";
		3043	LOG llevInfo, "[ABT] $_\n" for @bt;
		3044	--$_log_backtrace;
		3045	};
		3046	} else {
		3047	LOG llevInfo, "[ABT] $msg\n";
		3048	LOG llevInfo, "[ABT] [suppressed]\n";
		3049	}
		3050	}
		3051
		3052	# load additional modules
		3053	use cf::pod;
2200		3054
2201	END { cf::emergency_save }	3055	END { cf::emergency_save }
2202		3056
2203	1	3057	1
2204		3058

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