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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.156 by root, Tue Jan 9 22:07:08 2007 UTC vs.
Revision 1.270 by root, Sat May 26 15:44:06 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		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
27	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
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # 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
35		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
39		56
		57	our $RELOAD; # number of reloads so far
40	our @EVENT;	58	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		59
43	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(!)
44	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	76	our $NEXT_TICK;
46	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;
47		82
48	our %CFG;	83	our %CFG;
49		84
50	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	86	our $RUNTIME;
52		87
53	our %PLAYER; # all users	88	our %PLAYER; # all users
54	our %MAP; # all maps	89	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		91
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	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 $tick_start; # for load detecting purposes
61		98
62	binmode STDOUT;	99	binmode STDOUT;
63	binmode STDERR;	100	binmode STDERR;
64		101
65	# read virtual server time, if available	102	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
70	}	107	}
71		108
72	mkdir cf::localdir;	109	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		111
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
81		115
82	#############################################################################	116	#############################################################################
83		117
84	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
85		119
…		…
92	=item $cf::RUNTIME	126	=item $cf::RUNTIME
93		127
94	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
95	every server tick.	129	every server tick.
96		130
97	=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
98		134
99	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		139
102	=item $cf::NOW	140	=item $cf::NOW
103		141
104	The time of the last (current) server tick.	142	The time of the last (current) server tick.
105		143
106	=item $cf::TICK	144	=item $cf::TICK
107		145
108	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.
109		157
110	=item %cf::CFG	158	=item %cf::CFG
111		159
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	161	from wherever your confdir points to.
114		162
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		164
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.
121		168
122	=back	169	=back
123		170
124	=cut	171	=cut
125		172
126	BEGIN {	173	BEGIN {
127	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	175	my $msg = join "", @_;
129	utf8::encode $msg;
130		176
131	$msg .= "\n"	177	$msg .= "\n"
132	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
133		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
134	LOG llevError, $msg;	183	LOG llevError, $msg;
135	};	184	};
136	}	185	}
137		186
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
156	}	205	}
157		206
158	$Event::DIED = sub {	207	$Event::DIED = sub {
159	warn "error in event callback: @_";	208	warn "error in event callback: @_";
160	};	209	};
161
162	my %ext_pkg;
163	my @exts;
164	my @hook;
165		210
166	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
167		212
168	=over 4	213	=over 4
169		214
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	234	$d
190	} || "[unable to dump $_[0]: '$@']";	235	} || "[unable to dump $_[0]: '$@']";
191	}	236	}
192		237
193	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
194		239
195	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
196		241
197	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
198		243
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
207		245
208	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
209
210	=cut
211
212	sub to_json($) {
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214	JSON::Syck::Dump $_[0]
215	}
216		247
217	=item cf::lock_wait $string	248	=item cf::lock_wait $string
218		249
219	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
220		251
…		…
226	returned.	257	returned.
227		258
228	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
229	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
230		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
231	=cut	266	=cut
232		267
233	our %LOCK;	268	our %LOCK;
234		269
235	sub lock_wait($) {	270	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
256	}	291	}
257	}	292	}
258		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
259	sub freeze_mainloop {	300	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
261		302
262	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
263	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
264	$guard	307	$guard
265	}	308	}
266		309
267	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
289		332
290	sub sync_job(&) {	333	sub sync_job(&) {
291	my ($job) = @_;	334	my ($job) = @_;
292		335
293	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
294	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
296		341
297	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
309		354
310	while ($busy) {	355	while ($busy) {
311	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
312	}	357	}
313		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
		365
314	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
315	} else {	367	} else {
316	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
317		369
318	$job->()	370	$job->()
319	}	371	}
320	}	372	}
321		373
322	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
323		375
324	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	377	extension calling this is being unloaded.
326		378
327	=cut	379	=cut
328		380
329	sub async_ext(&) {	381	sub async_ext(&) {
…		…
338		390
339	$coro	391	$coro
340	}	392	}
341		393
342	sub write_runtime {	394	sub write_runtime {
343	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";
344		405
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
346	or return;	407	or return;
347		408
		409	my $value = $cf::RUNTIME + 90 + 10;
348	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
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;	414	and return;
351		415
		416	# always fsync - this file is important
352	aio_fsync $fh	417	aio_fsync $fh
353	and return;	418	and return;
354		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
355	close $fh	423	close $fh
356	or return;	424	or return;
357		425
358	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
359	and return;	427	and return;
360		428
		429	warn "runtime file written.\n";#d#
		430
361	1	431	1
362	}	432	}
363		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
364	=back	445	=back
365		446
366	=cut	447	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		448
490	#############################################################################	449	#############################################################################
491		450
492	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
493		452
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	579	our @CB_MAP = ();
621		580
622	my %attachment;	581	my %attachment;
623		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
624	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
626		591
627	use sort 'stable';	592	use sort 'stable';
628		593
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
663		628
664	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		633
669	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	635	my $pkg = shift @arg;
671		636
672	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
713	if (ref $_[0]) {	678	if (ref $_[0]) {
714	_object_attach @_;	679	_object_attach @_;
715	} else {	680	} else {
716	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
717	}	682	}
		683	_recalc_want;
718	};	684	};
719		685
720	# all those should be optimised	686	# all those should be optimised
721	sub cf::attachable::detach {	687	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
726	reattach ($obj);	692	reattach ($obj);
727	} else {	693	} else {
728	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
729	}	695	}
		696	_recalc_want;
730	};	697	};
731		698
732	sub cf::attachable::attached {	699	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
734		701
…		…
799	# object support	766	# object support
800		767
801	sub reattach {	768	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		773
805	my $registry = $obj->registry;	774	my $registry = $obj->registry;
806		775
807	@$registry = ();	776	@$registry = ();
808		777
…		…
855	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
856		825
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	830	close $fh;
862		831
863	if (@$objs) {	832	if (@$objs) {
864	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) {
865	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	838	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
871	}	840	}
872	} else {	841	} else {
873	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
940	=cut	909	=cut
941		910
942	sub register_extcmd {	911	sub register_extcmd {
943	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
944		913
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
949	}	915	}
950		916
951	cf::player->attach (	917	cf::player->attach (
952	on_command => sub {	918	on_command => sub {
953	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
966		932
967	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
968		934
969	if (ref $msg) {	935	if (ref $msg) {
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
972	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
973	}	939	}
974	}	940	}
975	} else {	941	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
978		944
979	cf::override;	945	cf::override;
980	},	946	},
981	);	947	);
982		948
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	949	sub load_extension {
990	my ($path) = @_;	950	my ($path) = @_;
991		951
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;	953	my $base = $1;
994	my $pkg = $1;	954	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
997		957
998	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
999		959
1000	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
1001	or die "$path: $!";	961	or die "$path: $!";
1002		962
1003	my $source =	963	my $source =
1004	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
1007	. "\n};\n1";	967	. "\n};\n1";
1008		968
1009	eval $source	969	unless (eval $source) {
1010	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
1011	: "extension disabled.\n";	971	: "extension disabled.\n";
1012		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1013	push @exts, $pkg;	973	warn $@;
1014	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
1015		975	exit 1;
1016	# no strict 'refs';	976	}
1017	# @{"$pkg\::ISA"} = ext::;	977	die $@;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }	978	}
1032		979
1033	# remove commands	980	push @EXTS, $pkg;
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	981	}
1058		982
1059	sub load_extensions {	983	sub load_extensions {
1060	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	985	next unless -r $ext;
…		…
1065	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1066	}	990	}
1067	}	991	}
1068		992
1069	#############################################################################	993	#############################################################################
1070	# load/save/clean perl data associated with a map
1071
1072	*cf::mapsupport::on_clean = sub {
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		994
1085	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1086		996
1087	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1088		998
…		…
1101	Returns the given player object, loading it if necessary (might block).	1011	Returns the given player object, loading it if necessary (might block).
1102		1012
1103	=cut	1013	=cut
1104		1014
1105	sub playerdir($) {	1015	sub playerdir($) {
1106	cf::localdir	1016	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1018	}
1112		1019
1113	sub path($) {	1020	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1022
1116	(playerdir $login) . "/$login.pl"	1023	(playerdir $login) . "/playerdata"
1117	}	1024	}
1118		1025
1119	sub find_active($) {	1026	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1027	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1028	and $cf::PLAYER{$_[0]}->active
…		…
1124		1031
1125	sub exists($) {	1032	sub exists($) {
1126	my ($login) = @_;	1033	my ($login) = @_;
1127		1034
1128	$cf::PLAYER{$login}	1035	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1036	or cf::sync_job { !aio_stat path $login }
1130	}	1037	}
1131		1038
1132	sub find($) {	1039	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1040	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1041	my $login = $_[0];
1135		1042
1136	my $guard = cf::lock_acquire "user_find:$login";	1043	my $guard = cf::lock_acquire "user_find:$login";
1137		1044
1138	$cf::PLAYER{$_[0]} || do {	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
1139	my $pl = load_pl path $login	1053	my $pl = load_pl path $login
1140	or return;	1054	or return;
1141	$cf::PLAYER{$login} = $pl	1055	$cf::PLAYER{$login} = $pl
1142	}	1056	}
1143	}	1057	}
…		…
1180		1094
1181	=cut	1095	=cut
1182		1096
1183	sub quit_character {	1097	sub quit_character {
1184	my ($pl) = @_;	1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
1185		1101
1186	$pl->{deny_save} = 1;	1102	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1104
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1110	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1111	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1112	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1113	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	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
1199	IO::AIO::aio_rmtree $temp;	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;
1200	}	1136	}
1201		1137
1202	=item cf::player::list_logins	1138	=item cf::player::list_logins
1203		1139
1204	Returns am arrayref of all valid playernames in the system, can take a	1140	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1141	while and may block, so not sync_job-capable, ever.
1206		1142
1207	=cut	1143	=cut
1208		1144
1209	sub list_logins {	1145	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1146	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1147	or return [];
1212		1148
1213	my @logins;	1149	my @logins;
1214		1150
1215	for my $login (@$dirs) {	1151	for my $login (@$dirs) {
…		…
1224	\@logins	1160	\@logins
1225	}	1161	}
1226		1162
1227	=item $player->maps	1163	=item $player->maps
1228		1164
1229	Returns an arrayref of cf::path's of all maps that are private for this	1165	Returns an arrayref of map paths that are private for this
1230	player. May block.	1166	player. May block.
1231		1167
1232	=cut	1168	=cut
1233		1169
1234	sub maps($) {	1170	sub maps($) {
1235	my ($pl) = @_;	1171	my ($pl) = @_;
		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1174
1237	my $files = aio_readdir playerdir $pl	1175	my $files = aio_readdir playerdir $pl
1238	or return;	1176	or return;
1239		1177
1240	my @paths;	1178	my @paths;
1241		1179
1242	for (@$files) {	1180	for (@$files) {
1243	utf8::decode $_;	1181	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1182	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1183	next unless /^$PATH_SEP/o;
1246		1184
1247	s/$PATH_SEP/\//g;	1185	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1186	}
1250		1187
1251	\@paths	1188	\@paths
1252	}	1189	}
1253		1190
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1255		1192
1256	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1257		1194
1258	=cut	1195	=cut
1259		1196
1260	sub ext_reply($$$%) {	1197	sub ext_reply($$%) {
1261	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1262		1199
1263	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1264		1201
1265	$self->send ("ext " . cf::to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
1266	}	1203	}
1267		1204
1268	package cf;	1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		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
		1244	}
1269		1245
1270	=back	1246	=back
1271
1272		1247
1273	=head3 cf::map	1248	=head3 cf::map
1274		1249
1275	=over 4	1250	=over 4
1276		1251
…		…
1279	package cf::map;	1254	package cf::map;
1280		1255
1281	use Fcntl;	1256	use Fcntl;
1282	use Coro::AIO;	1257	use Coro::AIO;
1283		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1284	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1286		1265
1287	sub generate_random_map {	1266	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1269	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$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},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(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"
1304	}	1411	}
1305		1412
1306	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1307	# all maps in C++...	1414	# all maps in C++...
1308	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1310		1417
1311	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1313	}	1420	}
1314		1421
		1422	sub unlink_save {
		1423	my ($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
1315	sub try_load_header($) {	1430	sub load_header_from($) {
1316	my ($path) = @_;	1431	my ($self, $path) = @_;
1317		1432
1318	utf8::encode $path;	1433	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1320	or return;	1438	or return;
1321		1439
1322	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
1323	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1324		1486
1325	# for better error messages only, will be overwritten	1487	$self->default_region (cf::region::find_by_path $self->{path})
1326	$map->path ($path);	1488	unless $self->default_region;
1327		1489
1328	$map->load_header ($path)	1490	1
1329	or return;
1330
1331	$map->{load_path} = $path;
1332
1333	$map
1334	}	1491	}
1335		1492
1336	sub find;	1493	sub find;
1337	sub find {	1494	sub find {
1338	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1339		1496
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1498
1345	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1346		1500
1347	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1349		1503	my $map = new_from_path cf::map $path
1350	# do it the slow way
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1504	or return;
1369		1505
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1382		1507
1383	Coro::cede;	1508	$map->load_header
		1509	or return;
1384		1510
1385	if ($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;
1386	$map->reset;	1514	$map->reset;
1387	undef $guard;	1515	undef $guard;
1388	$map = find $path	1516	return find $path;
1389	or return;
1390	}	1517	}
1391		1518
1392	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1393	}	1520	}
1394	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1395		1525
1396	sub load {	1526	sub load {
1397	my ($self) = @_;	1527	my ($self) = @_;
1398		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1399	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1401		1535
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1403		1537
1404	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1405		1539
1406	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1407	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1408	or return;	1546	or return;
1409		1547
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1549	if delete $self->{load_original};
1412		1550
1413	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1552	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1416	$self->clear_unique_items;	1554	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1418	}	1556	}
1419	}	1557	}
1420		1558
1421	Coro::cede;	1559	Coro::cede;
1422
1423	# now do the right thing for maps	1560	# now do the right thing for maps
1424	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1435	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;
1436	$self->activate;	1573	$self->activate;
1437	}	1574	}
1438		1575
1439	Coro::cede;
1440
1441	$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	$neigh->load;
		1612	}
1442	}	1613	}
1443		1614
1444	sub find_sync {	1615	sub find_sync {
1445	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1446		1617
1447	cf::sync_job { cf::map::find $path, $origin }	1618	cf::sync_job { find $path, $origin }
1448	}	1619	}
1449		1620
1450	sub do_load_sync {	1621	sub do_load_sync {
1451	my ($map) = @_;	1622	my ($map) = @_;
1452		1623
1453	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1454	}	1625	}
1455		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	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
		1655	}
		1656
1456	sub save {	1657	sub save {
1457	my ($self) = @_;	1658	my ($self) = @_;
1458		1659
1459	my $lock = cf::lock_acquire "map_data:" . $self->path;	1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1460		1661
1461	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1462		1663
1463	return unless $self->dirty;	1664	return unless $self->dirty;
1464		1665
1465	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1466	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1467		1668
1468	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1469		1670
1470	return if $self->{deny_save};	1671	return if $self->{deny_save};
1471		1672
…		…
1474	cf::async {	1675	cf::async {
1475	$_->contr->save for $self->players;	1676	$_->contr->save for $self->players;
1476	};	1677	};
1477		1678
1478	if ($uniq) {	1679	if ($uniq) {
1479	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1481	} else {	1682	} else {
1482	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1483	}	1684	}
1484	}	1685	}
1485		1686
1486	sub swap_out {	1687	sub swap_out {
1487	my ($self) = @_;	1688	my ($self) = @_;
…		…
1501		1702
1502	sub reset_at {	1703	sub reset_at {
1503	my ($self) = @_;	1704	my ($self) = @_;
1504		1705
1505	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1506	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1507	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1508		1709
1509	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1510	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1511		1712
…		…
1516	my ($self) = @_;	1717	my ($self) = @_;
1517		1718
1518	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1519	}	1720	}
1520		1721
1521	sub unlink_save {
1522	my ($self) = @_;
1523
1524	utf8::encode (my $save = $self->{path}->save_path);
1525	aioreq_pri 3; IO::AIO::aio_unlink $save;
1526	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1527	}
1528
1529	sub rename {
1530	my ($self, $new_path) = @_;
1531
1532	$self->unlink_save;
1533
1534	delete $cf::MAP{$self->path};
1535	$self->{path} = new cf::path $new_path;
1536	$self->path ($self->{path}->as_string);
1537	$cf::MAP{$self->path} = $self;
1538
1539	$self->save;
1540	}
1541
1542	sub reset {	1722	sub reset {
1543	my ($self) = @_;	1723	my ($self) = @_;
1544		1724
1545	my $lock = cf::lock_acquire "map_data:" . $self->path;	1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
1546		1726
1547	return if $self->players;	1727	return if $self->players;
1548	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1549		1729
1550	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1551		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
1552	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1553		1745
1554	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1555		1747
1556	$self->unlink_save;	1748	$self->unlink_save;
1557	$self->destroy;	1749	$self->destroy;
…		…
1560	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1561		1753
1562	sub nuke {	1754	sub nuke {
1563	my ($self) = @_;	1755	my ($self) = @_;
1564		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1565	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1566	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1567	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1568	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1569	}	1770	}
1570		1771
1571	sub customise_for {	1772	=item cf::map::unique_maps
1572	my ($map, $ob) = @_;
1573		1773
1574	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1575	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1576	}
1577		1776
1578	$map	1777	=cut
		1778
		1779	sub unique_maps() {
		1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
		1782
		1783	my @paths;
		1784
		1785	for (@$files) {
		1786	utf8::decode $_;
		1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
		1791	}
		1792
		1793	\@paths
1579	}	1794	}
1580		1795
1581	package cf;	1796	package cf;
1582		1797
1583	=back	1798	=back
…		…
1655		1870
1656	=item $player_object->enter_link	1871	=item $player_object->enter_link
1657		1872
1658	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}>).
1659		1874
1660	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
1661	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1662		1877
		1878	Will never block.
		1879
1663	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1664		1881
1665	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1666	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1667	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1668	to the emergency map position.	1885	fails, to the emergency map position.
1669		1886
1670	Might block.	1887	Might block.
1671		1888
1672	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1673		1900
1674	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1675	my ($self) = @_;	1902	my ($self) = @_;
1676		1903
1677	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1678		1905
1679	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1680		1907
1681	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1682	if $self->map;	1909	if $self->map && $self->map->{path} ne "{link}";
1683		1910
1684	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1685	}	1912	}
1686		1913
1687	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1688	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
		1916
		1917	return unless $self->contr->active;
1689		1918
1690	my $link_pos = delete $self->{_link_pos};	1919	my $link_pos = delete $self->{_link_pos};
1691		1920
1692	unless ($map) {	1921	unless ($map) {
1693	# restore original map position	1922	# restore original map position
…		…
1707	# use -1 or undef as default coordinates, not 0, 0	1936	# use -1 or undef as default coordinates, not 0, 0
1708	($x, $y) = ($map->enter_x, $map->enter_y)	1937	($x, $y) = ($map->enter_x, $map->enter_y)
1709	if $x <=0 && $y <= 0;	1938	if $x <=0 && $y <= 0;
1710		1939
1711	$map->load;	1940	$map->load;
		1941	$map->load_diag;
1712		1942
1713	return unless $self->contr->active;	1943	return unless $self->contr->active;
1714	$self->activate_recursive;	1944	$self->activate_recursive;
		1945
		1946	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1715	$self->enter_map ($map, $x, $y);	1947	$self->enter_map ($map, $x, $y);
1716	}	1948	}
1717		1949
1718	cf::player->attach (
1719	on_logout => sub {
1720	my ($pl) = @_;
1721
1722	# abort map switching before logout
1723	if ($pl->ob->{_link_pos}) {
1724	cf::sync_job {
1725	$pl->ob->leave_link
1726	};
1727	}
1728	},
1729	on_login => sub {
1730	my ($pl) = @_;
1731
1732	# try to abort aborted map switching on player login :)
1733	# should happen only on crashes
1734	if ($pl->ob->{_link_pos}) {
1735	$pl->ob->enter_link;
1736	(async {
1737	# we need this sleep as the login has a concurrent enter_exit running
1738	# and this sleep increases chances of the player not ending up in scorn
1739	$pl->ob->reply (undef,
1740	"There was an internal problem at your last logout, "
1741	. "the server will try to bring you to your intended destination in a second.",
1742	cf::NDI_RED);
1743	Coro::Timer::sleep 1;
1744	$pl->ob->leave_link;
1745	})->prio (2);
1746	}
1747	},
1748	);
1749
1750	=item $player_object->goto ($path, $x, $y)	1950	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1751		1951
		1952	Moves the player to the given map-path and coordinates by first freezing
		1953	her, loading and preparing them map, calling the provided $check callback
		1954	that has to return the map if sucecssful, and then unfreezes the player on
		1955	the new (success) or old (failed) map position.
		1956
1752	=cut	1957	=cut
		1958
		1959	our $GOTOGEN;
1753		1960
1754	sub cf::object::player::goto {	1961	sub cf::object::player::goto {
1755	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y, $check) = @_;
1756		1963
1757	$path = new cf::path $path;	1964	# do generation counting so two concurrent goto's will be executed in-order
1758	$path ne "/" or Carp::cluck ("oy");#d#	1965	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1759		1966
1760	$self->enter_link;	1967	$self->enter_link;
1761		1968
1762	(async {	1969	(async {
		1970	my $map = eval {
1763	my $map = cf::map::find $path->as_string;	1971	my $map = cf::map::find $path;
		1972
		1973	if ($map) {
1764	$map = $map->customise_for ($self) if $map;	1974	$map = $map->customise_for ($self);
1765		1975	$map = $check->($map) if $check && $map;
1766	# warn "entering ", $map->path, " at ($x, $y)\n"	1976	} else {
1767	# if $map;
1768
1769	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1977	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		1978	}
1770		1979
		1980	$map
		1981	};
		1982
		1983	if ($@) {
		1984	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		1985	LOG llevError | logBacktrace, Carp::longmess $@;
		1986	}
		1987
		1988	if ($gen == $self->{_goto_generation}) {
		1989	delete $self->{_goto_generation};
1771	$self->leave_link ($map, $x, $y);	1990	$self->leave_link ($map, $x, $y);
		1991	}
1772	})->prio (1);	1992	})->prio (1);
1773	}	1993	}
1774		1994
1775	=item $player_object->enter_exit ($exit_object)	1995	=item $player_object->enter_exit ($exit_object)
1776		1996
…		…
1778		1998
1779	sub parse_random_map_params {	1999	sub parse_random_map_params {
1780	my ($spec) = @_;	2000	my ($spec) = @_;
1781		2001
1782	my $rmp = { # defaults	2002	my $rmp = { # defaults
1783	xsize => 10,	2003	xsize => (cf::rndm 15, 40),
1784	ysize => 10,	2004	ysize => (cf::rndm 15, 40),
		2005	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2006	#layout => string,
1785	};	2007	};
1786		2008
1787	for (split /\n/, $spec) {	2009	for (split /\n/, $spec) {
1788	my ($k, $v) = split /\s+/, $_, 2;	2010	my ($k, $v) = split /\s+/, $_, 2;
1789		2011
…		…
1793	$rmp	2015	$rmp
1794	}	2016	}
1795		2017
1796	sub prepare_random_map {	2018	sub prepare_random_map {
1797	my ($exit) = @_;	2019	my ($exit) = @_;
		2020
		2021	my $guard = cf::lock_acquire "exit_prepare:$exit";
1798		2022
1799	# all this does is basically replace the /! path by	2023	# all this does is basically replace the /! path by
1800	# a new random map path (?random/...) with a seed	2024	# a new random map path (?random/...) with a seed
1801	# that depends on the exit object	2025	# that depends on the exit object
1802		2026
1803	my $rmp = parse_random_map_params $exit->msg;	2027	my $rmp = parse_random_map_params $exit->msg;
1804		2028
1805	if ($exit->map) {	2029	if ($exit->map) {
1806	$rmp->{region} = $exit->map->region_name;	2030	$rmp->{region} = $exit->region->name;
1807	$rmp->{origin_map} = $exit->map->path;	2031	$rmp->{origin_map} = $exit->map->path;
1808	$rmp->{origin_x} = $exit->x;	2032	$rmp->{origin_x} = $exit->x;
1809	$rmp->{origin_y} = $exit->y;	2033	$rmp->{origin_y} = $exit->y;
1810	}	2034	}
1811		2035
1812	$rmp->{random_seed} ||= $exit->random_seed;	2036	$rmp->{random_seed} ||= $exit->random_seed;
1813		2037
1814	my $data = cf::to_json $rmp;	2038	my $data = cf::to_json $rmp;
1815	my $md5 = Digest::MD5::md5_hex $data;	2039	my $md5 = Digest::MD5::md5_hex $data;
		2040	my $meta = "$RANDOMDIR/$md5.meta";
1816		2041
1817	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2042	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1818	aio_write $fh, 0, (length $data), $data, 0;	2043	aio_write $fh, 0, (length $data), $data, 0;
		2044	undef $fh;
		2045	aio_rename "$meta~", $meta;
1819		2046
1820	$exit->slaying ("?random/$md5");	2047	$exit->slaying ("?random/$md5");
1821	$exit->msg (undef);	2048	$exit->msg (undef);
1822	}	2049	}
1823	}	2050	}
1824		2051
1825	sub cf::object::player::enter_exit {	2052	sub cf::object::player::enter_exit {
1826	my ($self, $exit) = @_;	2053	my ($self, $exit) = @_;
1827		2054
1828	return unless $self->type == cf::PLAYER;	2055	return unless $self->type == cf::PLAYER;
		2056
		2057	if ($exit->slaying eq "/!") {
		2058	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2059	# the problem is that $exit might not survive long enough
		2060	# so it needs to be done right now, right here
		2061	cf::sync_job { prepare_random_map $exit };
		2062	}
		2063
		2064	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2065	my $hp = $exit->stats->hp;
		2066	my $sp = $exit->stats->sp;
1829		2067
1830	$self->enter_link;	2068	$self->enter_link;
1831		2069
1832	(async {	2070	(async {
1833	$self->deactivate_recursive; # just to be sure	2071	$self->deactivate_recursive; # just to be sure
1834	unless (eval {	2072	unless (eval {
1835	prepare_random_map $exit	2073	$self->goto ($slaying, $hp, $sp);
1836	if $exit->slaying eq "/!";
1837
1838	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1839	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1840		2074
1841	1;	2075	1;
1842	}) {	2076	}) {
1843	$self->message ("Something went wrong deep within the crossfire server. "	2077	$self->message ("Something went wrong deep within the crossfire server. "
1844	. "I'll try to bring you back to the map you were before. "	2078	. "I'll try to bring you back to the map you were before. "
1845	. "Please report this to the dungeon master",	2079	. "Please report this to the dungeon master!",
1846	cf::NDI_UNIQUE | cf::NDI_RED);	2080	cf::NDI_UNIQUE | cf::NDI_RED);
1847		2081
1848	warn "ERROR in enter_exit: $@";	2082	warn "ERROR in enter_exit: $@";
1849	$self->leave_link;	2083	$self->leave_link;
1850	}	2084	}
1851	})->prio (1);	2085	})->prio (1);
…		…
1864		2098
1865	sub cf::client::send_drawinfo {	2099	sub cf::client::send_drawinfo {
1866	my ($self, $text, $flags) = @_;	2100	my ($self, $text, $flags) = @_;
1867		2101
1868	utf8::encode $text;	2102	utf8::encode $text;
1869	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2103	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1870	}	2104	}
1871		2105
		2106	=item $client->ext_event ($type, %msg)
		2107
		2108	Sends an exti event to the client.
		2109
		2110	=cut
		2111
		2112	sub cf::client::ext_event($$%) {
		2113	my ($self, $type, %msg) = @_;
		2114
		2115	$msg{msgtype} = "event_$type";
		2116	$self->send_packet ("ext " . cf::to_json \%msg);
		2117	}
1872		2118
1873	=item $success = $client->query ($flags, "text", \&cb)	2119	=item $success = $client->query ($flags, "text", \&cb)
1874		2120
1875	Queues a query to the client, calling the given callback with	2121	Queues a query to the client, calling the given callback with
1876	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2122	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1905	# get handled first	2151	# get handled first
1906	my $queue = delete $ns->{query_queue}	2152	my $queue = delete $ns->{query_queue}
1907	or return; # be conservative, not sure how that can happen, but we saw a crash here	2153	or return; # be conservative, not sure how that can happen, but we saw a crash here
1908		2154
1909	(shift @$queue)->[1]->($msg);	2155	(shift @$queue)->[1]->($msg);
		2156	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1910		2157
1911	push @{ $ns->{query_queue} }, @$queue;	2158	push @{ $ns->{query_queue} }, @$queue;
1912		2159
1913	if (@{ $ns->{query_queue} } == @$queue) {	2160	if (@{ $ns->{query_queue} } == @$queue) {
1914	if (@$queue) {	2161	if (@$queue) {
…		…
1972		2219
1973	# here we export the classes and methods available to script code	2220	# here we export the classes and methods available to script code
1974		2221
1975	=pod	2222	=pod
1976		2223
1977	The following fucntions and emthods are available within a safe environment:	2224	The following functions and methods are available within a safe environment:
1978		2225
1979	cf::object contr pay_amount pay_player map	2226	cf::object contr pay_amount pay_player map
1980	cf::object::player player	2227	cf::object::player player
1981	cf::player peaceful	2228	cf::player peaceful
1982	cf::map trigger	2229	cf::map trigger
…		…
2067	#############################################################################	2314	#############################################################################
2068		2315
2069	=head2 EXTENSION DATABASE SUPPORT	2316	=head2 EXTENSION DATABASE SUPPORT
2070		2317
2071	Crossfire maintains a very simple database for extension use. It can	2318	Crossfire maintains a very simple database for extension use. It can
2072	currently store anything that can be serialised using Storable, which	2319	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2073	excludes objects.	2320	convert to/from binary).
2074		2321
2075	The parameter C<$family> should best start with the name of the extension	2322	The parameter C<$family> should best start with the name of the extension
2076	using it, it should be unique.	2323	using it, it should be unique.
2077		2324
2078	=over 4	2325	=over 4
2079		2326
2080	=item $hashref = cf::db_get $family
2081
2082	Return a hashref for use by the extension C<$family>, which can be
2083	modified. After modifications, you have to call C<cf::db_dirty> or
2084	C<cf::db_sync>.
2085
2086	=item $value = cf::db_get $family => $key	2327	=item $value = cf::db_get $family => $key
2087		2328
2088	Returns a single value from the database	2329	Returns a single value from the database.
2089
2090	=item cf::db_put $family => $hashref
2091
2092	Stores the given family hashref into the database. Updates are delayed, if
2093	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2094		2330
2095	=item cf::db_put $family => $key => $value	2331	=item cf::db_put $family => $key => $value
2096		2332
2097	Stores the given C<$value> in the family hash. Updates are delayed, if you	2333	Stores the given C<$value> in the family.
2098	want the data to be synced to disk immediately, use C<cf::db_sync>.
2099
2100	=item cf::db_dirty
2101
2102	Marks the database as dirty, to be updated at a later time.
2103
2104	=item cf::db_sync
2105
2106	Immediately write the database to disk I<if it is dirty>.
2107		2334
2108	=cut	2335	=cut
2109		2336
2110	our $DB;	2337	our $DB;
2111		2338
2112	{	2339	sub db_init {
2113	my $path = cf::localdir . "/database.pst";	2340	unless ($DB) {
		2341	$DB = BDB::db_create $DB_ENV;
2114		2342
2115	sub db_load() {	2343	cf::sync_job {
2116	$DB = stat $path ? Storable::retrieve $path : { };	2344	eval {
2117	}	2345	$DB->set_flags (BDB::CHKSUM);
2118		2346
2119	my $pid;	2347	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2120		2348	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2121	sub db_save() {	2349	cf::cleanup "db_open(db): $!" if $!;
2122	waitpid $pid, 0 if $pid;	2350	};
2123	if (0 == ($pid = fork)) {	2351	cf::cleanup "db_open(db): $@" if $@;
2124	$DB->{_meta}{version} = 1;
2125	Storable::nstore $DB, "$path~";
2126	rename "$path~", $path;
2127	cf::_exit 0 if defined $pid;
2128	}	2352	};
2129	}
2130
2131	my $dirty;
2132
2133	sub db_sync() {
2134	db_save if $dirty;
2135	undef $dirty;
2136	}
2137
2138	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2139	db_sync;
2140	});	2353	}
		2354	}
2141		2355
2142	sub db_dirty() {
2143	$dirty = 1;
2144	$idle->start;
2145	}
2146
2147	sub db_get($;$) {	2356	sub db_get($$) {
2148	@_ >= 2	2357	my $key = "$_[0]/$_[1]";
2149	? $DB->{$_[0]}{$_[1]}
2150	: ($DB->{$_[0]} ||= { })
2151	}
2152		2358
		2359	cf::sync_job {
		2360	BDB::db_get $DB, undef, $key, my $data;
		2361
		2362	$! ? ()
		2363	: $data
		2364	}
		2365	}
		2366
2153	sub db_put($$;$) {	2367	sub db_put($$$) {
2154	if (@_ >= 3) {	2368	BDB::dbreq_pri 4;
2155	$DB->{$_[0]}{$_[1]} = $_[2];	2369	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2156	} else {	2370	}
2157	$DB->{$_[0]} = $_[1];
2158	}
2159	db_dirty;
2160	}
2161		2371
2162	cf::global->attach (	2372	=item cf::cache $id => [$paths...], $processversion => $process
2163	prio => 10000,	2373
2164	on_cleanup => sub {	2374	Generic caching function that returns the value of the resource $id,
2165	db_sync;	2375	caching and regenerating as required.
		2376
		2377	This function can block.
		2378
		2379	=cut
		2380
		2381	sub cache {
		2382	my ($id, $src, $processversion, $process) = @_;
		2383
		2384	my $meta =
		2385	join "\x00",
		2386	$processversion,
		2387	map {
		2388	aio_stat $_
		2389	and Carp::croak "$_: $!";
		2390
		2391	($_, (stat _)[7,9])
		2392	} @$src;
		2393
		2394	my $dbmeta = db_get cache => "$id/meta";
		2395	if ($dbmeta ne $meta) {
		2396	# changed, we may need to process
		2397
		2398	my @data;
		2399	my $md5;
		2400
		2401	for (0 .. $#$src) {
		2402	0 <= aio_load $src->[$_], $data[$_]
		2403	or Carp::croak "$src->[$_]: $!";
2166	},	2404	}
2167	);	2405
		2406	# if processing is expensive, check
		2407	# checksum first
		2408	if (1) {
		2409	$md5 =
		2410	join "\x00",
		2411	$processversion,
		2412	map {
		2413	Coro::cede;
		2414	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2415	} 0.. $#$src;
		2416
		2417
		2418	my $dbmd5 = db_get cache => "$id/md5";
		2419	if ($dbmd5 eq $md5) {
		2420	db_put cache => "$id/meta", $meta;
		2421
		2422	return db_get cache => "$id/data";
		2423	}
		2424	}
		2425
		2426	my $t1 = Time::HiRes::time;
		2427	my $data = $process->(\@data);
		2428	my $t2 = Time::HiRes::time;
		2429
		2430	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2431
		2432	db_put cache => "$id/data", $data;
		2433	db_put cache => "$id/md5" , $md5;
		2434	db_put cache => "$id/meta", $meta;
		2435
		2436	return $data;
		2437	}
		2438
		2439	db_get cache => "$id/data"
2168	}	2440	}
		2441
		2442	=item fork_call { }, $args
		2443
		2444	Executes the given code block with the given arguments in a seperate
		2445	process, returning the results. Everything must be serialisable with
		2446	Coro::Storable. May, of course, block. Note that the executed sub may
		2447	never block itself or use any form of Event handling.
		2448
		2449	=cut
		2450
		2451	sub fork_call(&@) {
		2452	my ($cb, @args) = @_;
		2453
		2454	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2455	# or die "socketpair: $!";
		2456	pipe my $fh1, my $fh2
		2457	or die "pipe: $!";
		2458
		2459	if (my $pid = fork) {
		2460	close $fh2;
		2461
		2462	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2463	$res = Coro::Storable::thaw $res;
		2464
		2465	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2466
		2467	die $$res unless "ARRAY" eq ref $res;
		2468
		2469	return wantarray ? @$res : $res->[-1];
		2470	} else {
		2471	reset_signals;
		2472	local $SIG{__WARN__};
		2473	local $SIG{__DIE__};
		2474	eval {
		2475	close $fh1;
		2476
		2477	my @res = eval { $cb->(@args) };
		2478	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2479	};
		2480
		2481	warn $@ if $@;
		2482	_exit 0;
		2483	}
		2484	}
		2485
		2486
2169		2487
2170	#############################################################################	2488	#############################################################################
2171	# the server's main()	2489	# the server's init and main functions
		2490
		2491	sub load_facedata($) {
		2492	my ($path) = @_;
		2493
		2494	warn "loading facedata from $path\n";
		2495
		2496	my $facedata;
		2497	0 < aio_load $path, $facedata
		2498	or die "$path: $!";
		2499
		2500	$facedata = Coro::Storable::thaw $facedata;
		2501
		2502	$facedata->{version} == 2
		2503	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2504
		2505	{
		2506	my $faces = $facedata->{faceinfo};
		2507
		2508	while (my ($face, $info) = each %$faces) {
		2509	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2510	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2511	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2512	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2513	Coro::cede;
		2514	}
		2515
		2516	while (my ($face, $info) = each %$faces) {
		2517	next unless $info->{smooth};
		2518	my $idx = cf::face::find $face
		2519	or next;
		2520	if (my $smooth = cf::face::find $info->{smooth}) {
		2521	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2522	} else {
		2523	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2524	}
		2525	Coro::cede;
		2526	}
		2527	}
		2528
		2529	{
		2530	my $anims = $facedata->{animinfo};
		2531
		2532	while (my ($anim, $info) = each %$anims) {
		2533	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2534	Coro::cede;
		2535	}
		2536
		2537	cf::anim::invalidate_all; # d'oh
		2538	}
		2539
		2540	1
		2541	}
		2542
		2543	sub reload_regions {
		2544	load_resource_file "$MAPDIR/regions"
		2545	or die "unable to load regions file\n";
		2546	}
		2547
		2548	sub reload_facedata {
		2549	load_facedata "$DATADIR/facedata"
		2550	or die "unable to load facedata\n";
		2551	}
		2552
		2553	sub reload_archetypes {
		2554	load_resource_file "$DATADIR/archetypes"
		2555	or die "unable to load archetypes\n";
		2556	}
		2557
		2558	sub reload_treasures {
		2559	load_resource_file "$DATADIR/treasures"
		2560	or die "unable to load treasurelists\n";
		2561	}
		2562
		2563	sub reload_resources {
		2564	warn "reloading resource files...\n";
		2565
		2566	reload_regions;
		2567	reload_facedata;
		2568	reload_archetypes;
		2569	reload_treasures;
		2570
		2571	warn "finished reloading resource files\n";
		2572	}
		2573
		2574	sub init {
		2575	reload_resources;
		2576	}
2172		2577
2173	sub cfg_load {	2578	sub cfg_load {
2174	open my $fh, "<:utf8", cf::confdir . "/config"	2579	open my $fh, "<:utf8", "$CONFDIR/config"
2175	or return;	2580	or return;
2176		2581
2177	local $/;	2582	local $/;
2178	*CFG = YAML::Syck::Load <$fh>;	2583	*CFG = YAML::Syck::Load <$fh>;
2179		2584
…		…
2193		2598
2194	sub main {	2599	sub main {
2195	# we must not ever block the main coroutine	2600	# we must not ever block the main coroutine
2196	local $Coro::idle = sub {	2601	local $Coro::idle = sub {
2197	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2602	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2603	(async {
2198	async { Event::one_event };	2604	Event::one_event;
		2605	})->prio (Coro::PRIO_MAX);
2199	};	2606	};
2200		2607
2201	cfg_load;	2608	cfg_load;
2202	db_load;	2609	db_init;
2203	load_extensions;	2610	load_extensions;
		2611
		2612	$TICK_WATCHER->start;
2204	Event::loop;	2613	Event::loop;
2205	}	2614	}
2206		2615
2207	#############################################################################	2616	#############################################################################
2208	# initialisation and cleanup	2617	# initialisation and cleanup
2209		2618
2210	# install some emergency cleanup handlers	2619	# install some emergency cleanup handlers
2211	BEGIN {	2620	BEGIN {
2212	for my $signal (qw(INT HUP TERM)) {	2621	for my $signal (qw(INT HUP TERM)) {
2213	Event->signal (	2622	Event->signal (
		2623	reentrant => 0,
2214	data => WF_AUTOCANCEL,	2624	data => WF_AUTOCANCEL,
2215	signal => $signal,	2625	signal => $signal,
		2626	prio => 0,
2216	cb => sub {	2627	cb => sub {
2217	cf::cleanup "SIG$signal";	2628	cf::cleanup "SIG$signal";
2218	},	2629	},
2219	);	2630	);
2220	}	2631	}
2221	}	2632	}
…		…
2226	warn "enter emergency perl save\n";	2637	warn "enter emergency perl save\n";
2227		2638
2228	cf::sync_job {	2639	cf::sync_job {
2229	# use a peculiar iteration method to avoid tripping on perl	2640	# use a peculiar iteration method to avoid tripping on perl
2230	# refcount bugs in for. also avoids problems with players	2641	# refcount bugs in for. also avoids problems with players
2231	# and maps saved/Destroyed asynchronously.	2642	# and maps saved/destroyed asynchronously.
2232	warn "begin emergency player save\n";	2643	warn "begin emergency player save\n";
2233	for my $login (keys %cf::PLAYER) {	2644	for my $login (keys %cf::PLAYER) {
2234	my $pl = $cf::PLAYER{$login} or next;	2645	my $pl = $cf::PLAYER{$login} or next;
2235	$pl->valid or next;	2646	$pl->valid or next;
2236	$pl->save;	2647	$pl->save;
…		…
2242	my $map = $cf::MAP{$path} or next;	2653	my $map = $cf::MAP{$path} or next;
2243	$map->valid or next;	2654	$map->valid or next;
2244	$map->save;	2655	$map->save;
2245	}	2656	}
2246	warn "end emergency map save\n";	2657	warn "end emergency map save\n";
		2658
		2659	warn "begin emergency database checkpoint\n";
		2660	BDB::db_env_txn_checkpoint $DB_ENV;
		2661	warn "end emergency database checkpoint\n";
2247	};	2662	};
2248		2663
2249	warn "leave emergency perl save\n";	2664	warn "leave emergency perl save\n";
2250	}	2665	}
2251		2666
		2667	sub post_cleanup {
		2668	my ($make_core) = @_;
		2669
		2670	warn Carp::longmess "post_cleanup backtrace"
		2671	if $make_core;
		2672	}
		2673
2252	sub reload() {	2674	sub do_reload_perl() {
2253	# can/must only be called in main	2675	# can/must only be called in main
2254	if ($Coro::current != $Coro::main) {	2676	if ($Coro::current != $Coro::main) {
2255	warn "can only reload from main coroutine\n";	2677	warn "can only reload from main coroutine";
2256	return;	2678	return;
2257	}	2679	}
2258		2680
2259	warn "reloading...";	2681	warn "reloading...";
2260		2682
2261	my $guard = freeze_mainloop;	2683	warn "entering sync_job";
		2684
		2685	cf::sync_job {
		2686	cf::write_runtime; # external watchdog should not bark
2262	cf::emergency_save;	2687	cf::emergency_save;
		2688	cf::write_runtime; # external watchdog should not bark
2263		2689
2264	eval {	2690	warn "syncing database to disk";
		2691	BDB::db_env_txn_checkpoint $DB_ENV;
		2692
2265	# if anything goes wrong in here, we should simply crash as we already saved	2693	# if anything goes wrong in here, we should simply crash as we already saved
2266		2694
2267	# cancel all watchers	2695	warn "cancelling all WF_AUTOCANCEL watchers";
2268	for (Event::all_watchers) {	2696	for (Event::all_watchers) {
2269	$_->cancel if $_->data & WF_AUTOCANCEL;	2697	$_->cancel if $_->data & WF_AUTOCANCEL;
2270	}	2698	}
2271		2699
		2700	warn "flushing outstanding aio requests";
		2701	for (;;) {
		2702	BDB::flush;
		2703	IO::AIO::flush;
		2704	Coro::cede;
		2705	last unless IO::AIO::nreqs || BDB::nreqs;
		2706	warn "iterate...";
		2707	}
		2708
		2709	++$RELOAD;
		2710
2272	# cancel all extension coros	2711	warn "cancelling all extension coros";
2273	$_->cancel for values %EXT_CORO;	2712	$_->cancel for values %EXT_CORO;
2274	%EXT_CORO = ();	2713	%EXT_CORO = ();
2275		2714
2276	# unload all extensions	2715	warn "removing commands";
2277	for (@exts) {	2716	%COMMAND = ();
		2717
		2718	warn "removing ext commands";
		2719	%EXTCMD = ();
		2720
		2721	warn "unloading/nuking all extensions";
		2722	for my $pkg (@EXTS) {
2278	warn "unloading <$_>";	2723	warn "... unloading $pkg";
2279	unload_extension $_;	2724
		2725	if (my $cb = $pkg->can ("unload")) {
		2726	eval {
		2727	$cb->($pkg);
		2728	1
		2729	} or warn "$pkg unloaded, but with errors: $@";
2280	}	2730	}
2281		2731
		2732	warn "... nuking $pkg";
		2733	Symbol::delete_package $pkg;
		2734	}
		2735
2282	# unload all modules loaded from $LIBDIR	2736	warn "unloading all perl modules loaded from $LIBDIR";
2283	while (my ($k, $v) = each %INC) {	2737	while (my ($k, $v) = each %INC) {
2284	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2738	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2285		2739
2286	warn "removing <$k>";	2740	warn "... unloading $k";
2287	delete $INC{$k};	2741	delete $INC{$k};
2288		2742
2289	$k =~ s/\.pm$//;	2743	$k =~ s/\.pm$//;
2290	$k =~ s/\//::/g;	2744	$k =~ s/\//::/g;
2291		2745
…		…
2294	}	2748	}
2295		2749
2296	Symbol::delete_package $k;	2750	Symbol::delete_package $k;
2297	}	2751	}
2298		2752
2299	# sync database to disk
2300	cf::db_sync;
2301	IO::AIO::flush;
2302
2303	# get rid of safe::, as good as possible	2753	warn "getting rid of safe::, as good as possible";
2304	Symbol::delete_package "safe::$_"	2754	Symbol::delete_package "safe::$_"
2305	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2755	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2306		2756
2307	# remove register_script_function callbacks
2308	# TODO
2309
2310	# unload cf.pm "a bit"	2757	warn "unloading cf.pm \"a bit\"";
2311	delete $INC{"cf.pm"};	2758	delete $INC{"cf.pm"};
		2759	delete $INC{"cf/pod.pm"};
2312		2760
2313	# don't, removes xs symbols, too,	2761	# don't, removes xs symbols, too,
2314	# and global variables created in xs	2762	# and global variables created in xs
2315	#Symbol::delete_package __PACKAGE__;	2763	#Symbol::delete_package __PACKAGE__;
2316		2764
2317	# reload cf.pm	2765	warn "unload completed, starting to reload now";
		2766
2318	warn "reloading cf.pm";	2767	warn "reloading cf.pm";
2319	require cf;	2768	require cf;
2320	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2769	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2321		2770
2322	# load config and database again	2771	warn "loading config and database again";
2323	cf::cfg_load;	2772	cf::cfg_load;
2324	cf::db_load;
2325		2773
2326	# load extensions
2327	warn "load extensions";	2774	warn "loading extensions";
2328	cf::load_extensions;	2775	cf::load_extensions;
2329		2776
2330	# reattach attachments to objects	2777	warn "reattaching attachments to objects/players";
2331	warn "reattach";	2778	_global_reattach; # objects, sockets
2332	_global_reattach;	2779	warn "reattaching attachments to maps";
2333	reattach $_ for values %MAP;	2780	reattach $_ for values %MAP;
2334	};	2781	warn "reattaching attachments to players";
		2782	reattach $_ for values %PLAYER;
2335		2783
2336	if ($@) {	2784	warn "leaving sync_job";
		2785
		2786	1
		2787	} or do {
2337	warn $@;	2788	warn $@;
2338	warn "error while reloading, exiting.";	2789	warn "error while reloading, exiting.";
2339	exit 1;	2790	exit 1;
2340	}	2791	};
2341		2792
2342	warn "reloaded successfully";	2793	warn "reloaded";
2343	};	2794	};
2344		2795
2345	#############################################################################	2796	our $RELOAD_WATCHER; # used only during reload
2346		2797
2347	unless ($LINK_MAP) {	2798	sub reload_perl() {
2348	$LINK_MAP = cf::map::new;	2799	# doing reload synchronously and two reloads happen back-to-back,
		2800	# coro crashes during coro_state_free->destroy here.
2349		2801
2350	$LINK_MAP->width (41);	2802	$RELOAD_WATCHER ||= Event->timer (
2351	$LINK_MAP->height (41);	2803	reentrant => 0,
2352	$LINK_MAP->alloc;
2353	$LINK_MAP->path ("{link}");
2354	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2355	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2356
2357	# dirty hack because... archetypes are not yet loaded
2358	Event->timer (
2359	after => 10,	2804	after => 0,
		2805	data => WF_AUTOCANCEL,
2360	cb => sub {	2806	cb => sub {
2361	$_[0]->w->cancel;	2807	do_reload_perl;
2362		2808	undef $RELOAD_WATCHER;
2363	# provide some exits "home"
2364	my $exit = cf::object::new "exit";
2365
2366	$exit->slaying ($EMERGENCY_POSITION->[0]);
2367	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2368	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2369
2370	$LINK_MAP->insert ($exit->clone, 19, 19);
2371	$LINK_MAP->insert ($exit->clone, 19, 20);
2372	$LINK_MAP->insert ($exit->clone, 19, 21);
2373	$LINK_MAP->insert ($exit->clone, 20, 19);
2374	$LINK_MAP->insert ($exit->clone, 20, 21);
2375	$LINK_MAP->insert ($exit->clone, 21, 19);
2376	$LINK_MAP->insert ($exit->clone, 21, 20);
2377	$LINK_MAP->insert ($exit->clone, 21, 21);
2378
2379	$exit->destroy;
2380	});	2809	},
2381		2810	);
2382	$LINK_MAP->{deny_save} = 1;
2383	$LINK_MAP->{deny_reset} = 1;
2384
2385	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2386	}	2811	}
2387
2388	register "<global>", __PACKAGE__;
2389		2812
2390	register_command "reload" => sub {	2813	register_command "reload" => sub {
2391	my ($who, $arg) = @_;	2814	my ($who, $arg) = @_;
2392		2815
2393	if ($who->flag (FLAG_WIZ)) {	2816	if ($who->flag (FLAG_WIZ)) {
2394	$who->message ("start of reload.");
2395	reload;
2396	$who->message ("end of reload.");	2817	$who->message ("reloading server.");
		2818	async { reload_perl };
2397	}	2819	}
2398	};	2820	};
2399		2821
2400	unshift @INC, $LIBDIR;	2822	unshift @INC, $LIBDIR;
2401		2823
		2824	my $bug_warning = 0;
		2825
		2826	our @WAIT_FOR_TICK;
		2827	our @WAIT_FOR_TICK_BEGIN;
		2828
		2829	sub wait_for_tick {
		2830	return unless $TICK_WATCHER->is_active;
		2831	return if $Coro::current == $Coro::main;
		2832
		2833	my $signal = new Coro::Signal;
		2834	push @WAIT_FOR_TICK, $signal;
		2835	$signal->wait;
		2836	}
		2837
		2838	sub wait_for_tick_begin {
		2839	return unless $TICK_WATCHER->is_active;
		2840	return if $Coro::current == $Coro::main;
		2841
		2842	my $signal = new Coro::Signal;
		2843	push @WAIT_FOR_TICK_BEGIN, $signal;
		2844	$signal->wait;
		2845	}
		2846
		2847	my $min = 1e6;#d#
		2848	my $avg = 10;
2402	$TICK_WATCHER = Event->timer (	2849	$TICK_WATCHER = Event->timer (
2403	reentrant => 0,	2850	reentrant => 0,
		2851	parked => 1,
2404	prio => 0,	2852	prio => 0,
2405	at => $NEXT_TICK || $TICK,	2853	at => $NEXT_TICK || $TICK,
2406	data => WF_AUTOCANCEL,	2854	data => WF_AUTOCANCEL,
2407	cb => sub {	2855	cb => sub {
		2856	if ($Coro::current != $Coro::main) {
		2857	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2858	unless ++$bug_warning > 10;
		2859	return;
		2860	}
		2861
		2862	$NOW = $tick_start = Event::time;
		2863
2408	cf::server_tick; # one server iteration	2864	cf::server_tick; # one server iteration
		2865
		2866	0 && sync_job {#d#
		2867	for(1..10) {
		2868	my $t = Event::time;
		2869	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2870	or die;
		2871
		2872	$map->width (50);
		2873	$map->height (50);
		2874	$map->alloc;
		2875	$map->_load_objects ("/tmp/x.map", 1);
		2876	my $t = Event::time - $t;
		2877
		2878	#next unless $t < 0.0013;#d#
		2879	if ($t < $min) {
		2880	$min = $t;
		2881	}
		2882	$avg = $avg * 0.99 + $t * 0.01;
		2883	}
		2884	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2885	exit 0;
		2886	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2887	};
		2888
2409	$RUNTIME += $TICK;	2889	$RUNTIME += $TICK;
2410	$NEXT_TICK += $TICK;	2890	$NEXT_TICK += $TICK;
2411		2891
2412	$WAIT_FOR_TICK->broadcast;	2892	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2413	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	2893	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2894	Coro::async_pool {
		2895	write_runtime
		2896	or warn "ERROR: unable to write runtime file: $!";
		2897	};
		2898	}
		2899
		2900	# my $AFTER = Event::time;
		2901	# warn $AFTER - $NOW;#d#
		2902
		2903	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2904	$sig->send;
		2905	}
		2906	while (my $sig = shift @WAIT_FOR_TICK) {
		2907	$sig->send;
		2908	}
		2909
		2910	$NOW = Event::time;
2414		2911
2415	# if we are delayed by four ticks or more, skip them all	2912	# if we are delayed by four ticks or more, skip them all
2416	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2913	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2417		2914
2418	$TICK_WATCHER->at ($NEXT_TICK);	2915	$TICK_WATCHER->at ($NEXT_TICK);
2419	$TICK_WATCHER->start;	2916	$TICK_WATCHER->start;
		2917
		2918	$LOAD = ($NOW - $tick_start) / $TICK;
		2919	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2920
		2921	_post_tick;
		2922
		2923
2420	},	2924	},
2421	);	2925	);
2422		2926
		2927	{
2423	IO::AIO::max_poll_time $TICK * 0.2;	2928	BDB::max_poll_time $TICK * 0.1;
2424		2929	$BDB_POLL_WATCHER = Event->io (
2425	Event->io (	2930	reentrant => 0,
2426	fd => IO::AIO::poll_fileno,	2931	fd => BDB::poll_fileno,
2427	poll => 'r',	2932	poll => 'r',
2428	prio => 5,	2933	prio => 0,
2429	data => WF_AUTOCANCEL,
2430	cb => \&IO::AIO::poll_cb,
2431	);
2432
2433	Event->timer (
2434	data => WF_AUTOCANCEL,	2934	data => WF_AUTOCANCEL,
2435	after => 0,	2935	cb => \&BDB::poll_cb,
2436	interval => 10,	2936	);
2437	cb => sub {	2937	BDB::min_parallel 8;
2438	(Coro::unblock_sub {	2938
2439	write_runtime	2939	BDB::set_sync_prepare {
2440	or warn "ERROR: unable to write runtime file: $!";	2940	my $status;
		2941	my $current = $Coro::current;
		2942	(
		2943	sub {
		2944	$status = $!;
		2945	$current->ready; undef $current;
		2946	},
		2947	sub {
		2948	Coro::schedule while defined $current;
		2949	$! = $status;
		2950	},
		2951	)
		2952	};
		2953
		2954	unless ($DB_ENV) {
		2955	$DB_ENV = BDB::db_env_create;
		2956
		2957	cf::sync_job {
		2958	eval {
		2959	BDB::db_env_open
		2960	$DB_ENV,
		2961	$BDBDIR,
		2962	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2963	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2964	0666;
		2965
		2966	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2967
		2968	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2969	$DB_ENV->set_lk_detect;
		2970	};
		2971
		2972	cf::cleanup "db_env_open(db): $@" if $@;
2441	})->();	2973	};
2442	},	2974	}
2443	);	2975	}
		2976
		2977	{
		2978	IO::AIO::min_parallel 8;
		2979
		2980	undef $Coro::AIO::WATCHER;
		2981	IO::AIO::max_poll_time $TICK * 0.1;
		2982	$AIO_POLL_WATCHER = Event->io (
		2983	reentrant => 0,
		2984	data => WF_AUTOCANCEL,
		2985	fd => IO::AIO::poll_fileno,
		2986	poll => 'r',
		2987	prio => 6,
		2988	cb => \&IO::AIO::poll_cb,
		2989	);
		2990	}
		2991
		2992	my $_log_backtrace;
		2993
		2994	sub _log_backtrace {
		2995	my ($msg, @addr) = @_;
		2996
		2997	$msg =~ s/\n//;
		2998
		2999	# limit the # of concurrent backtraces
		3000	if ($_log_backtrace < 2) {
		3001	++$_log_backtrace;
		3002	async {
		3003	my @bt = fork_call {
		3004	@addr = map { sprintf "%x", $_ } @addr;
		3005	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3006	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3007	or die "addr2line: $!";
		3008
		3009	my @funcs;
		3010	my @res = <$fh>;
		3011	chomp for @res;
		3012	while (@res) {
		3013	my ($func, $line) = splice @res, 0, 2, ();
		3014	push @funcs, "[$func] $line";
		3015	}
		3016
		3017	@funcs
		3018	};
		3019
		3020	LOG llevInfo, "[ABT] $msg\n";
		3021	LOG llevInfo, "[ABT] $_\n" for @bt;
		3022	--$_log_backtrace;
		3023	};
		3024	} else {
		3025	LOG llevInfo, "[ABT] $msg\n";
		3026	LOG llevInfo, "[ABT] [suppressed]\n";
		3027	}
		3028	}
		3029
		3030	# load additional modules
		3031	use cf::pod;
2444		3032
2445	END { cf::emergency_save }	3033	END { cf::emergency_save }
2446		3034
2447	1	3035	1
2448		3036

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