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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.142 by root, Fri Jan 5 21:51:42 2007 UTC vs.
Revision 1.269 by root, Tue May 22 21:35:26 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (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
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	129	every server tick.
91		130
92	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		206
146	$Event::DIED = sub {	207	$Event::DIED = sub {
147	warn "error in event callback: @_";	208	warn "error in event callback: @_";
148	};	209	};
149		210
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
155		212
156	=over 4	213	=over 4
157		214
158	=cut	215	=item dumpval $ref
159		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
161		239
162	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
163		241
164	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
165		243
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
174		245
175	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		247
184	=item cf::lock_wait $string	248	=item cf::lock_wait $string
185		249
186	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
187		251
…		…
193	returned.	257	returned.
194		258
195	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
197		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
198	=cut	266	=cut
199		267
200	our %LOCK;	268	our %LOCK;
201		269
202	sub lock_wait($) {	270	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
223	}	291	}
224	}	292	}
225		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
226	sub freeze_mainloop {	300	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
228		302
229	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
230	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
231	$guard	307	$guard
232	}	308	}
233		309
234	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
256		332
257	sub sync_job(&) {	333	sub sync_job(&) {
258	my ($job) = @_;	334	my ($job) = @_;
259		335
260	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
261	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
263		341
264	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
276		354
277	while ($busy) {	355	while ($busy) {
278	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
279	}	357	}
280		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
281	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
282	} else {	367	} else {
283	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
284		369
285	$job->()	370	$job->()
286	}	371	}
287	}	372	}
288		373
289	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
290		375
291	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	377	extension calling this is being unloaded.
293		378
294	=cut	379	=cut
295		380
296	sub async_ext(&) {	381	sub async_ext(&) {
…		…
305		390
306	$coro	391	$coro
307	}	392	}
308		393
309	sub write_runtime {	394	sub write_runtime {
310	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";
311		405
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
313	or return;	407	or return;
314		408
		409	my $value = $cf::RUNTIME + 90 + 10;
315	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
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;	414	and return;
318		415
		416	# always fsync - this file is important
319	aio_fsync $fh	417	aio_fsync $fh
320	and return;	418	and return;
321		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
322	close $fh	423	close $fh
323	or return;	424	or return;
324		425
325	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
326	and return;	427	and return;
327		428
		429	warn "runtime file written.\n";#d#
		430
328	1	431	1
329	}	432	}
330		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
331	=back	445	=back
332		446
333	=cut	447	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		448
455	#############################################################################	449	#############################################################################
456		450
457	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
458		452
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	579	our @CB_MAP = ();
586		580
587	my %attachment;	581	my %attachment;
588		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
589	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
591		591
592	use sort 'stable';	592	use sort 'stable';
593		593
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
628		628
629	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		633
634	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	635	my $pkg = shift @arg;
636		636
637	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
678	if (ref $_[0]) {	678	if (ref $_[0]) {
679	_object_attach @_;	679	_object_attach @_;
680	} else {	680	} else {
681	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
682	}	682	}
		683	_recalc_want;
683	};	684	};
684		685
685	# all those should be optimised	686	# all those should be optimised
686	sub cf::attachable::detach {	687	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
691	reattach ($obj);	692	reattach ($obj);
692	} else {	693	} else {
693	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
694	}	695	}
		696	_recalc_want;
695	};	697	};
696		698
697	sub cf::attachable::attached {	699	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
699		701
…		…
764	# object support	766	# object support
765		767
766	sub reattach {	768	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		773
770	my $registry = $obj->registry;	774	my $registry = $obj->registry;
771		775
772	@$registry = ();	776	@$registry = ();
773		777
…		…
820	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
821		825
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	830	close $fh;
827		831
828	if (@$objs) {	832	if (@$objs) {
829	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) {
830	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	838	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
836	}	840	}
837	} else {	841	} else {
838	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
905	=cut	909	=cut
906		910
907	sub register_extcmd {	911	sub register_extcmd {
908	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
909		913
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
914	}	915	}
915		916
916	cf::player->attach (	917	cf::player->attach (
917	on_command => sub {	918	on_command => sub {
918	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
931		932
932	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
933		934
934	if (ref $msg) {	935	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
938	}	939	}
939	}	940	}
940	} else {	941	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
943		944
944	cf::override;	945	cf::override;
945	},	946	},
946	);	947	);
947		948
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	949	sub load_extension {
955	my ($path) = @_;	950	my ($path) = @_;
956		951
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
958	my $base = $1;	953	my $base = $1;
959	my $pkg = $1;	954	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
962		957
963	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
964		959
965	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
966	or die "$path: $!";	961	or die "$path: $!";
967		962
968	my $source =	963	my $source =
969	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
972	. "\n};\n1";	967	. "\n};\n1";
973		968
974	eval $source	969	unless (eval $source) {
975	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
976	: "extension disabled.\n";	971	: "extension disabled.\n";
977		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
978	push @exts, $pkg;	973	warn $@;
979	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
980		975	exit 1;
981	# no strict 'refs';	976	}
982	# @{"$pkg\::ISA"} = ext::;	977	die $@;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	978	}
997		979
998	# remove commands	980	push @EXTS, $pkg;
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}	981	}
1023		982
1024	sub load_extensions {	983	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;	985	next unless -r $ext;
…		…
1030	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1031	}	990	}
1032	}	991	}
1033		992
1034	#############################################################################	993	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071		994
1072	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1073		996
1074	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1075		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1076	=head3 cf::player	1005	=head3 cf::player
1077		1006
1078	=over 4	1007	=over 4
1079		1008
1080	=item cf::player::exists $login	1009	=item cf::player::find $login
1081		1010
1082	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1083		1012
1084	=cut	1013	=cut
1085		1014
1086	sub cf::player::exists($) {	1015	sub playerdir($) {
1087	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1089	}	1018	}
1090		1019
		1020	sub path($) {
		1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1022
		1023	(playerdir $login) . "/playerdata"
		1024	}
		1025
		1026	sub find_active($) {
		1027	$cf::PLAYER{$_[0]}
		1028	and $cf::PLAYER{$_[0]}->active
		1029	and $cf::PLAYER{$_[0]}
		1030	}
		1031
		1032	sub exists($) {
		1033	my ($login) = @_;
		1034
		1035	$cf::PLAYER{$login}
		1036	or cf::sync_job { !aio_stat path $login }
		1037	}
		1038
		1039	sub find($) {
		1040	return $cf::PLAYER{$_[0]} || do {
		1041	my $login = $_[0];
		1042
		1043	my $guard = cf::lock_acquire "user_find:$login";
		1044
		1045	$cf::PLAYER{$_[0]} || do {
		1046	# rename old playerfiles to new ones
		1047	#TODO: remove when no longer required
		1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1051	aio_unlink +(playerdir $login) . "/$login.pl";
		1052
		1053	my $pl = load_pl path $login
		1054	or return;
		1055	$cf::PLAYER{$login} = $pl
		1056	}
		1057	}
		1058	}
		1059
		1060	sub save($) {
		1061	my ($pl) = @_;
		1062
		1063	return if $pl->{deny_save};
		1064
		1065	my $path = path $pl;
		1066	my $guard = cf::lock_acquire "user_save:$path";
		1067
		1068	return if $pl->{deny_save};
		1069
		1070	aio_mkdir playerdir $pl, 0770;
		1071	$pl->{last_save} = $cf::RUNTIME;
		1072
		1073	$pl->save_pl ($path);
		1074	Coro::cede;
		1075	}
		1076
		1077	sub new($) {
		1078	my ($login) = @_;
		1079
		1080	my $self = create;
		1081
		1082	$self->ob->name ($login);
		1083	$self->{deny_save} = 1;
		1084
		1085	$cf::PLAYER{$login} = $self;
		1086
		1087	$self
		1088	}
		1089
		1090	=item $pl->quit_character
		1091
		1092	Nukes the player without looking back. If logged in, the connection will
		1093	be destroyed. May block for a long time.
		1094
		1095	=cut
		1096
		1097	sub quit_character {
		1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
		1101
		1102	$pl->{deny_save} = 1;
		1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1104
		1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1106	$pl->deactivate;
		1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1108	$pl->ns->destroy if $pl->ns;
		1109
		1110	my $path = playerdir $pl;
		1111	my $temp = "$path~$cf::RUNTIME~deleting~";
		1112	aio_rename $path, $temp;
		1113	delete $cf::PLAYER{$pl->ob->name};
		1114	$pl->destroy;
		1115
		1116	my $prefix = qr<^~\Q$name\E/>;
		1117
		1118	# nuke player maps
		1119	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1120
		1121	IO::AIO::aio_rmtree $temp;
		1122	}
		1123
		1124	=item $pl->kick
		1125
		1126	Kicks a player out of the game. This destroys the connection.
		1127
		1128	=cut
		1129
		1130	sub kick {
		1131	my ($pl, $kicker) = @_;
		1132
		1133	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1134	$pl->killer ("kicked");
		1135	$pl->ns->destroy;
		1136	}
		1137
		1138	=item cf::player::list_logins
		1139
		1140	Returns am arrayref of all valid playernames in the system, can take a
		1141	while and may block, so not sync_job-capable, ever.
		1142
		1143	=cut
		1144
		1145	sub list_logins {
		1146	my $dirs = aio_readdir $PLAYERDIR
		1147	or return [];
		1148
		1149	my @logins;
		1150
		1151	for my $login (@$dirs) {
		1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1153	aio_read $fh, 0, 512, my $buf, 0 or next;
		1154	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1155
		1156	utf8::decode $login;
		1157	push @logins, $login;
		1158	}
		1159
		1160	\@logins
		1161	}
		1162
		1163	=item $player->maps
		1164
		1165	Returns an arrayref of map paths that are private for this
		1166	player. May block.
		1167
		1168	=cut
		1169
		1170	sub maps($) {
		1171	my ($pl) = @_;
		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
		1174
		1175	my $files = aio_readdir playerdir $pl
		1176	or return;
		1177
		1178	my @paths;
		1179
		1180	for (@$files) {
		1181	utf8::decode $_;
		1182	next if /\.(?:pl|pst)$/;
		1183	next unless /^$PATH_SEP/o;
		1184
		1185	push @paths, cf::map::normalise "~$pl/$_";
		1186	}
		1187
		1188	\@paths
		1189	}
		1190
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1092		1192
1093	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1094		1194
1095	=cut	1195	=cut
1096		1196
1097	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1099		1199
1100	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1101		1201
1102	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		1212	my ($self, $type, %msg) = @_;
		1213
		1214	$self->ns->ext_event ($type, %msg);
		1215	}
		1216
		1217	=head3 cf::region
		1218
		1219	=over 4
		1220
		1221	=cut
		1222
		1223	package cf::region;
		1224
		1225	=item cf::region::find_by_path $path
		1226
		1227	Tries to decuce the probable region for a map knowing only its path.
		1228
		1229	=cut
		1230
		1231	sub find_by_path($) {
		1232	my ($path) = @_;
		1233
		1234	my ($match, $specificity);
		1235
		1236	for my $region (list) {
		1237	if ($region->match && $path =~ $region->match) {
		1238	($match, $specificity) = ($region, $region->specificity)
		1239	if $region->specificity > $specificity;
		1240	}
		1241	}
		1242
		1243	$match
1103	}	1244	}
1104		1245
1105	=back	1246	=back
1106
1107		1247
1108	=head3 cf::map	1248	=head3 cf::map
1109		1249
1110	=over 4	1250	=over 4
1111		1251
…		…
1114	package cf::map;	1254	package cf::map;
1115		1255
1116	use Fcntl;	1256	use Fcntl;
1117	use Coro::AIO;	1257	use Coro::AIO;
1118		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1119	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1121		1265
1122	sub generate_random_map {	1266	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1269	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$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},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(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"
1139	}	1411	}
1140		1412
1141	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1142	# all maps in C++...	1414	# all maps in C++...
1143	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1145		1417
1146	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1148	}	1420	}
1149		1421
		1422	sub unlink_save {
		1423	my ($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
1150	sub try_load_header($) {	1430	sub load_header_from($) {
1151	my ($path) = @_;	1431	my ($self, $path) = @_;
1152		1432
1153	utf8::encode $path;	1433	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1155	or return;	1438	or return;
1156		1439
1157	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
1158	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1159		1486
1160	# for better error messages only, will be overwritten	1487	$self->default_region (cf::region::find_by_path $self->{path})
1161	$map->path ($path);	1488	unless $self->default_region;
1162		1489
1163	$map->load_header ($path)	1490	1
1164	or return;
1165
1166	$map->{load_path} = $path;
1167
1168	$map
1169	}	1491	}
1170		1492
1171	sub find;	1493	sub find;
1172	sub find {	1494	sub find {
1173	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1174		1496
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		1498
1180	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1181		1500
1182	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1184		1503	my $map = new_from_path cf::map $path
1185	# do it the slow way
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	1504	or return;
1204		1505
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1217		1507
1218	Coro::cede;	1508	$map->load_header
		1509	or return;
1219		1510
1220	if ($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;
1221	$map->reset;	1514	$map->reset;
1222	undef $guard;	1515	undef $guard;
1223	$map = find $path	1516	return find $path;
1224	or return;
1225	}	1517	}
1226		1518
1227	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1228	}	1520	}
1229	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1230		1525
1231	sub load {	1526	sub load {
1232	my ($self) = @_;	1527	my ($self) = @_;
1233		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1234	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1236		1535
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1537
1239	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1240		1539
1241	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1242	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1243	or return;	1546	or return;
1244		1547
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1549	if delete $self->{load_original};
1247		1550
1248	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1552	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1251	$self->clear_unique_items;	1554	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1253	}	1556	}
1254	}	1557	}
1255		1558
1256	Coro::cede;	1559	Coro::cede;
1257
1258	# now do the right thing for maps	1560	# now do the right thing for maps
1259	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1270	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;
1271	$self->activate;	1573	$self->activate;
1272	}	1574	}
1273		1575
1274	Coro::cede;
1275
1276	$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	$neigh->load;
		1612	}
1277	}	1613	}
1278		1614
1279	sub find_sync {	1615	sub find_sync {
1280	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1281		1617
1282	cf::sync_job { cf::map::find $path, $origin }	1618	cf::sync_job { find $path, $origin }
1283	}	1619	}
1284		1620
1285	sub do_load_sync {	1621	sub do_load_sync {
1286	my ($map) = @_;	1622	my ($map) = @_;
1287		1623
1288	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1289	}	1625	}
1290		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	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
		1655	}
		1656
1291	sub save {	1657	sub save {
1292	my ($self) = @_;	1658	my ($self) = @_;
1293		1659
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1295		1661
1296	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1297		1663
1298	return unless $self->dirty;	1664	return unless $self->dirty;
1299		1665
1300	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		1668
1303	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1304		1670
1305	return if $self->{deny_save};	1671	return if $self->{deny_save};
1306		1672
1307	local $self->{last_access} = $self->last_access;#d#	1673	local $self->{last_access} = $self->last_access;#d#
1308		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1309	if ($uniq) {	1679	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	1682	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	1684	}
1315	}	1685	}
1316		1686
1317	sub swap_out {	1687	sub swap_out {
1318	my ($self) = @_;	1688	my ($self) = @_;
…		…
1332		1702
1333	sub reset_at {	1703	sub reset_at {
1334	my ($self) = @_;	1704	my ($self) = @_;
1335		1705
1336	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1338	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1339		1709
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		1712
…		…
1347	my ($self) = @_;	1717	my ($self) = @_;
1348		1718
1349	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1350	}	1720	}
1351		1721
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	1722	sub reset {
1374	my ($self) = @_;	1723	my ($self) = @_;
1375		1724
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		1726
1378	return if $self->players;	1727	return if $self->players;
1379	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1380		1729
1381	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1382		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
1383	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1384		1745
1385	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1386		1747
1387	$self->unlink_save;	1748	$self->unlink_save;
1388	$self->destroy;	1749	$self->destroy;
…		…
1391	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1392		1753
1393	sub nuke {	1754	sub nuke {
1394	my ($self) = @_;	1755	my ($self) = @_;
1395		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1399	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1400	}	1770	}
1401		1771
1402	sub customise_for {	1772	=item cf::map::unique_maps
1403	my ($map, $ob) = @_;
1404		1773
1405	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1407	}
1408		1776
1409	$map	1777	=cut
1410	}
1411		1778
1412	sub emergency_save {	1779	sub unique_maps() {
1413	my $freeze_guard = cf::freeze_mainloop;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1414		1782
1415	warn "enter emergency map save\n";	1783	my @paths;
1416		1784
1417	cf::sync_job {	1785	for (@$files) {
1418	warn "begin emergency map save\n";	1786	utf8::decode $_;
1419	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1420	};	1791	}
1421		1792
1422	warn "end emergency map save\n";	1793	\@paths
1423	}	1794	}
1424		1795
1425	package cf;	1796	package cf;
1426		1797
1427	=back	1798	=back
1428		1799
		1800	=head3 cf::object
		1801
		1802	=cut
		1803
		1804	package cf::object;
		1805
		1806	=over 4
		1807
		1808	=item $ob->inv_recursive
		1809
		1810	Returns the inventory of the object _and_ their inventories, recursively.
		1811
		1812	=cut
		1813
		1814	sub inv_recursive_;
		1815	sub inv_recursive_ {
		1816	map { $_, inv_recursive_ $_->inv } @_
		1817	}
		1818
		1819	sub inv_recursive {
		1820	inv_recursive_ inv $_[0]
		1821	}
		1822
		1823	package cf;
		1824
		1825	=back
1429		1826
1430	=head3 cf::object::player	1827	=head3 cf::object::player
1431		1828
1432	=over 4	1829	=over 4
1433		1830
…		…
1473		1870
1474	=item $player_object->enter_link	1871	=item $player_object->enter_link
1475		1872
1476	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}>).
1477		1874
1478	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
1479	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1480		1877
		1878	Will never block.
		1879
1481	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1482		1881
1483	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	1885	fails, to the emergency map position.
1487		1886
1488	Might block.	1887	Might block.
1489		1888
1490	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1491		1900
1492	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1493	my ($self) = @_;	1902	my ($self) = @_;
1494		1903
1495	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1496		1905
1497	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		1907
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	1909	if $self->map;
1501		1910
1502	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	1912	}
1504		1913
1505	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1507		1916
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1528		1937
1529	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1530		1940
		1941	return unless $self->contr->active;
1531	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1533	}	1946	}
1534		1947
1535	cf::player->attach (	1948	cf::player->attach (
1536	on_logout => sub {	1949	on_logout => sub {
…		…
1547	my ($pl) = @_;	1960	my ($pl) = @_;
1548		1961
1549	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes	1963	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1554	(async {	1966	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,	1967	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "	1968	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",	1969	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);	1970	cf::NDI_RED);
		1971	# we need this sleep as the login has a concurrent enter_exit running
		1972	# and this sleep increases chances of the player not ending up in scorn
1561	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1563	})->prio (2);	1975	})->prio (2);
1564	}	1976	}
1565	},	1977	},
1566	);	1978	);
1567		1979
1568	=item $player_object->goto ($path, $x, $y)	1980	=item $player_object->goto ($path, $x, $y[, $check->($map)])
		1981
		1982	Moves the player to the given map-path and coordinates by first freezing
		1983	her, loading and preparing them map, calling the provided $check callback
		1984	that has to return the map if sucecssful, and then unfreezes the player on
		1985	the new (success) or old (failed) map position.
1569		1986
1570	=cut	1987	=cut
1571		1988
1572	sub cf::object::player::goto {	1989	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	1990	my ($self, $path, $x, $y, $check) = @_;
1574		1991
1575	$self->enter_link;	1992	$self->enter_link;
1576		1993
1577	(async {	1994	(async {
1578	$path = new cf::path $path;	1995	my $map = eval {
1579
1580	my $map = cf::map::find $path->as_string;	1996	my $map = cf::map::find $path;
		1997
		1998	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	1999	$map = $map->customise_for ($self);
1582		2000	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2001	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2002	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2003	}
		2004
		2005	$map
		2006	};
		2007
		2008	if ($@) {
		2009	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2010	LOG llevError | logBacktrace, Carp::longmess $@;
		2011	}
1587		2012
1588	$self->leave_link ($map, $x, $y);	2013	$self->leave_link ($map, $x, $y);
1589	})->prio (1);	2014	})->prio (1);
1590	}	2015	}
1591		2016
…		…
1595		2020
1596	sub parse_random_map_params {	2021	sub parse_random_map_params {
1597	my ($spec) = @_;	2022	my ($spec) = @_;
1598		2023
1599	my $rmp = { # defaults	2024	my $rmp = { # defaults
1600	xsize => 10,	2025	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2026	ysize => (cf::rndm 15, 40),
		2027	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2028	#layout => string,
1602	};	2029	};
1603		2030
1604	for (split /\n/, $spec) {	2031	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2032	my ($k, $v) = split /\s+/, $_, 2;
1606		2033
…		…
1610	$rmp	2037	$rmp
1611	}	2038	}
1612		2039
1613	sub prepare_random_map {	2040	sub prepare_random_map {
1614	my ($exit) = @_;	2041	my ($exit) = @_;
		2042
		2043	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2044
1616	# all this does is basically replace the /! path by	2045	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2046	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2047	# that depends on the exit object
1619		2048
1620	my $rmp = parse_random_map_params $exit->msg;	2049	my $rmp = parse_random_map_params $exit->msg;
1621		2050
1622	if ($exit->map) {	2051	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2052	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2053	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2054	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2055	$rmp->{origin_y} = $exit->y;
1627	}	2056	}
1628		2057
1629	$rmp->{random_seed} ||= $exit->random_seed;	2058	$rmp->{random_seed} ||= $exit->random_seed;
1630		2059
1631	my $data = cf::to_json $rmp;	2060	my $data = cf::to_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2061	my $md5 = Digest::MD5::md5_hex $data;
		2062	my $meta = "$RANDOMDIR/$md5.meta";
1633		2063
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2064	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	2065	aio_write $fh, 0, (length $data), $data, 0;
		2066	undef $fh;
		2067	aio_rename "$meta~", $meta;
1636		2068
1637	$exit->slaying ("?random/$md5");	2069	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2070	$exit->msg (undef);
1639	}	2071	}
1640	}	2072	}
1641		2073
1642	sub cf::object::player::enter_exit {	2074	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2075	my ($self, $exit) = @_;
1644		2076
1645	return unless $self->type == cf::PLAYER;	2077	return unless $self->type == cf::PLAYER;
		2078
		2079	if ($exit->slaying eq "/!") {
		2080	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2081	# the problem is that $exit might not survive long enough
		2082	# so it needs to be done right now, right here
		2083	cf::sync_job { prepare_random_map $exit };
		2084	}
		2085
		2086	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2087	my $hp = $exit->stats->hp;
		2088	my $sp = $exit->stats->sp;
1646		2089
1647	$self->enter_link;	2090	$self->enter_link;
1648		2091
1649	(async {	2092	(async {
1650	$self->deactivate_recursive; # just to be sure	2093	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2094	unless (eval {
1652	prepare_random_map $exit	2095	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		2096
1658	1;	2097	1;
1659	}) {	2098	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2099	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2100	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2101	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2102	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2103
1665	warn "ERROR in enter_exit: $@";	2104	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2105	$self->leave_link;
1667	}	2106	}
1668	})->prio (1);	2107	})->prio (1);
…		…
1681		2120
1682	sub cf::client::send_drawinfo {	2121	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2122	my ($self, $text, $flags) = @_;
1684		2123
1685	utf8::encode $text;	2124	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2125	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2126	}
1688		2127
		2128	=item $client->ext_event ($type, %msg)
		2129
		2130	Sends an exti event to the client.
		2131
		2132	=cut
		2133
		2134	sub cf::client::ext_event($$%) {
		2135	my ($self, $type, %msg) = @_;
		2136
		2137	$msg{msgtype} = "event_$type";
		2138	$self->send_packet ("ext " . cf::to_json \%msg);
		2139	}
1689		2140
1690	=item $success = $client->query ($flags, "text", \&cb)	2141	=item $success = $client->query ($flags, "text", \&cb)
1691		2142
1692	Queues a query to the client, calling the given callback with	2143	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2144	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1722	# get handled first	2173	# get handled first
1723	my $queue = delete $ns->{query_queue}	2174	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2175	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2176
1726	(shift @$queue)->[1]->($msg);	2177	(shift @$queue)->[1]->($msg);
		2178	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2179
1728	push @{ $ns->{query_queue} }, @$queue;	2180	push @{ $ns->{query_queue} }, @$queue;
1729		2181
1730	if (@{ $ns->{query_queue} } == @$queue) {	2182	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2183	if (@$queue) {
…		…
1789		2241
1790	# here we export the classes and methods available to script code	2242	# here we export the classes and methods available to script code
1791		2243
1792	=pod	2244	=pod
1793		2245
1794	The following fucntions and emthods are available within a safe environment:	2246	The following functions and methods are available within a safe environment:
1795		2247
1796	cf::object contr pay_amount pay_player map	2248	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2249	cf::object::player player
1798	cf::player peaceful	2250	cf::player peaceful
1799	cf::map trigger	2251	cf::map trigger
…		…
1884	#############################################################################	2336	#############################################################################
1885		2337
1886	=head2 EXTENSION DATABASE SUPPORT	2338	=head2 EXTENSION DATABASE SUPPORT
1887		2339
1888	Crossfire maintains a very simple database for extension use. It can	2340	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which	2341	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1890	excludes objects.	2342	convert to/from binary).
1891		2343
1892	The parameter C<$family> should best start with the name of the extension	2344	The parameter C<$family> should best start with the name of the extension
1893	using it, it should be unique.	2345	using it, it should be unique.
1894		2346
1895	=over 4	2347	=over 4
1896		2348
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key	2349	=item $value = cf::db_get $family => $key
1904		2350
1905	Returns a single value from the database	2351	Returns a single value from the database.
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911		2352
1912	=item cf::db_put $family => $key => $value	2353	=item cf::db_put $family => $key => $value
1913		2354
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you	2355	Stores the given C<$value> in the family.
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924		2356
1925	=cut	2357	=cut
1926		2358
1927	our $DB;	2359	our $DB;
1928		2360
1929	{	2361	sub db_init {
1930	my $path = cf::localdir . "/database.pst";	2362	unless ($DB) {
		2363	$DB = BDB::db_create $DB_ENV;
1931		2364
1932	sub db_load() {	2365	cf::sync_job {
1933	$DB = stat $path ? Storable::retrieve $path : { };	2366	eval {
1934	}	2367	$DB->set_flags (BDB::CHKSUM);
1935		2368
1936	my $pid;	2369	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1937		2370	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1938	sub db_save() {	2371	cf::cleanup "db_open(db): $!" if $!;
1939	waitpid $pid, 0 if $pid;	2372	};
1940	if (0 == ($pid = fork)) {	2373	cf::cleanup "db_open(db): $@" if $@;
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}	2374	};
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	2375	}
		2376	}
1958		2377
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {	2378	sub db_get($$) {
1965	@_ >= 2	2379	my $key = "$_[0]/$_[1]";
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		2380
		2381	cf::sync_job {
		2382	BDB::db_get $DB, undef, $key, my $data;
		2383
		2384	$! ? ()
		2385	: $data
		2386	}
		2387	}
		2388
1970	sub db_put($$;$) {	2389	sub db_put($$$) {
1971	if (@_ >= 3) {	2390	BDB::dbreq_pri 4;
1972	$DB->{$_[0]}{$_[1]} = $_[2];	2391	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1973	} else {	2392	}
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		2393
1979	cf::global->attach (	2394	=item cf::cache $id => [$paths...], $processversion => $process
1980	prio => 10000,	2395
1981	on_cleanup => sub {	2396	Generic caching function that returns the value of the resource $id,
1982	db_sync;	2397	caching and regenerating as required.
		2398
		2399	This function can block.
		2400
		2401	=cut
		2402
		2403	sub cache {
		2404	my ($id, $src, $processversion, $process) = @_;
		2405
		2406	my $meta =
		2407	join "\x00",
		2408	$processversion,
		2409	map {
		2410	aio_stat $_
		2411	and Carp::croak "$_: $!";
		2412
		2413	($_, (stat _)[7,9])
		2414	} @$src;
		2415
		2416	my $dbmeta = db_get cache => "$id/meta";
		2417	if ($dbmeta ne $meta) {
		2418	# changed, we may need to process
		2419
		2420	my @data;
		2421	my $md5;
		2422
		2423	for (0 .. $#$src) {
		2424	0 <= aio_load $src->[$_], $data[$_]
		2425	or Carp::croak "$src->[$_]: $!";
1983	},	2426	}
1984	);	2427
		2428	# if processing is expensive, check
		2429	# checksum first
		2430	if (1) {
		2431	$md5 =
		2432	join "\x00",
		2433	$processversion,
		2434	map {
		2435	Coro::cede;
		2436	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2437	} 0.. $#$src;
		2438
		2439
		2440	my $dbmd5 = db_get cache => "$id/md5";
		2441	if ($dbmd5 eq $md5) {
		2442	db_put cache => "$id/meta", $meta;
		2443
		2444	return db_get cache => "$id/data";
		2445	}
		2446	}
		2447
		2448	my $t1 = Time::HiRes::time;
		2449	my $data = $process->(\@data);
		2450	my $t2 = Time::HiRes::time;
		2451
		2452	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2453
		2454	db_put cache => "$id/data", $data;
		2455	db_put cache => "$id/md5" , $md5;
		2456	db_put cache => "$id/meta", $meta;
		2457
		2458	return $data;
		2459	}
		2460
		2461	db_get cache => "$id/data"
1985	}	2462	}
		2463
		2464	=item fork_call { }, $args
		2465
		2466	Executes the given code block with the given arguments in a seperate
		2467	process, returning the results. Everything must be serialisable with
		2468	Coro::Storable. May, of course, block. Note that the executed sub may
		2469	never block itself or use any form of Event handling.
		2470
		2471	=cut
		2472
		2473	sub fork_call(&@) {
		2474	my ($cb, @args) = @_;
		2475
		2476	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2477	# or die "socketpair: $!";
		2478	pipe my $fh1, my $fh2
		2479	or die "pipe: $!";
		2480
		2481	if (my $pid = fork) {
		2482	close $fh2;
		2483
		2484	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2485	$res = Coro::Storable::thaw $res;
		2486
		2487	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2488
		2489	die $$res unless "ARRAY" eq ref $res;
		2490
		2491	return wantarray ? @$res : $res->[-1];
		2492	} else {
		2493	reset_signals;
		2494	local $SIG{__WARN__};
		2495	local $SIG{__DIE__};
		2496	eval {
		2497	close $fh1;
		2498
		2499	my @res = eval { $cb->(@args) };
		2500	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2501	};
		2502
		2503	warn $@ if $@;
		2504	_exit 0;
		2505	}
		2506	}
		2507
		2508
1986		2509
1987	#############################################################################	2510	#############################################################################
1988	# the server's main()	2511	# the server's init and main functions
		2512
		2513	sub load_facedata($) {
		2514	my ($path) = @_;
		2515
		2516	warn "loading facedata from $path\n";
		2517
		2518	my $facedata;
		2519	0 < aio_load $path, $facedata
		2520	or die "$path: $!";
		2521
		2522	$facedata = Coro::Storable::thaw $facedata;
		2523
		2524	$facedata->{version} == 2
		2525	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2526
		2527	{
		2528	my $faces = $facedata->{faceinfo};
		2529
		2530	while (my ($face, $info) = each %$faces) {
		2531	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2532	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2533	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2534	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2535	Coro::cede;
		2536	}
		2537
		2538	while (my ($face, $info) = each %$faces) {
		2539	next unless $info->{smooth};
		2540	my $idx = cf::face::find $face
		2541	or next;
		2542	if (my $smooth = cf::face::find $info->{smooth}) {
		2543	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2544	} else {
		2545	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2546	}
		2547	Coro::cede;
		2548	}
		2549	}
		2550
		2551	{
		2552	my $anims = $facedata->{animinfo};
		2553
		2554	while (my ($anim, $info) = each %$anims) {
		2555	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2556	Coro::cede;
		2557	}
		2558
		2559	cf::anim::invalidate_all; # d'oh
		2560	}
		2561
		2562	1
		2563	}
		2564
		2565	sub reload_regions {
		2566	load_resource_file "$MAPDIR/regions"
		2567	or die "unable to load regions file\n";
		2568	}
		2569
		2570	sub reload_facedata {
		2571	load_facedata "$DATADIR/facedata"
		2572	or die "unable to load facedata\n";
		2573	}
		2574
		2575	sub reload_archetypes {
		2576	load_resource_file "$DATADIR/archetypes"
		2577	or die "unable to load archetypes\n";
		2578	}
		2579
		2580	sub reload_treasures {
		2581	load_resource_file "$DATADIR/treasures"
		2582	or die "unable to load treasurelists\n";
		2583	}
		2584
		2585	sub reload_resources {
		2586	warn "reloading resource files...\n";
		2587
		2588	reload_regions;
		2589	reload_facedata;
		2590	reload_archetypes;
		2591	reload_treasures;
		2592
		2593	warn "finished reloading resource files\n";
		2594	}
		2595
		2596	sub init {
		2597	reload_resources;
		2598	}
1989		2599
1990	sub cfg_load {	2600	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2601	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2602	or return;
1993		2603
1994	local $/;	2604	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2605	*CFG = YAML::Syck::Load <$fh>;
1996		2606
…		…
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2609	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2610	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		2611
2002	if (exists $CFG{mlockall}) {	2612	if (exists $CFG{mlockall}) {
2003	eval {	2613	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	2614	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	2615	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	2616	};
2007	warn $@ if $@;	2617	warn $@ if $@;
2008	}	2618	}
2009	}	2619	}
2010		2620
2011	sub main {	2621	sub main {
2012	# we must not ever block the main coroutine	2622	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	2623	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2624	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2625	(async {
2015	async { Event::one_event };	2626	Event::one_event;
		2627	})->prio (Coro::PRIO_MAX);
2016	};	2628	};
2017		2629
2018	cfg_load;	2630	cfg_load;
2019	db_load;	2631	db_init;
2020	load_extensions;	2632	load_extensions;
		2633
		2634	$TICK_WATCHER->start;
2021	Event::loop;	2635	Event::loop;
2022	}	2636	}
2023		2637
2024	#############################################################################	2638	#############################################################################
2025	# initialisation	2639	# initialisation and cleanup
2026		2640
		2641	# install some emergency cleanup handlers
		2642	BEGIN {
		2643	for my $signal (qw(INT HUP TERM)) {
		2644	Event->signal (
		2645	reentrant => 0,
		2646	data => WF_AUTOCANCEL,
		2647	signal => $signal,
		2648	prio => 0,
		2649	cb => sub {
		2650	cf::cleanup "SIG$signal";
		2651	},
		2652	);
		2653	}
		2654	}
		2655
		2656	sub emergency_save() {
		2657	my $freeze_guard = cf::freeze_mainloop;
		2658
		2659	warn "enter emergency perl save\n";
		2660
		2661	cf::sync_job {
		2662	# use a peculiar iteration method to avoid tripping on perl
		2663	# refcount bugs in for. also avoids problems with players
		2664	# and maps saved/destroyed asynchronously.
		2665	warn "begin emergency player save\n";
		2666	for my $login (keys %cf::PLAYER) {
		2667	my $pl = $cf::PLAYER{$login} or next;
		2668	$pl->valid or next;
		2669	$pl->save;
		2670	}
		2671	warn "end emergency player save\n";
		2672
		2673	warn "begin emergency map save\n";
		2674	for my $path (keys %cf::MAP) {
		2675	my $map = $cf::MAP{$path} or next;
		2676	$map->valid or next;
		2677	$map->save;
		2678	}
		2679	warn "end emergency map save\n";
		2680
		2681	warn "begin emergency database checkpoint\n";
		2682	BDB::db_env_txn_checkpoint $DB_ENV;
		2683	warn "end emergency database checkpoint\n";
		2684	};
		2685
		2686	warn "leave emergency perl save\n";
		2687	}
		2688
		2689	sub post_cleanup {
		2690	my ($make_core) = @_;
		2691
		2692	warn Carp::longmess "post_cleanup backtrace"
		2693	if $make_core;
		2694	}
		2695
2027	sub reload() {	2696	sub do_reload_perl() {
2028	# can/must only be called in main	2697	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	2698	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	2699	warn "can only reload from main coroutine";
2031	return;	2700	return;
2032	}	2701	}
2033		2702
2034	warn "reloading...";	2703	warn "reloading...";
2035		2704
2036	my $guard = freeze_mainloop;	2705	warn "entering sync_job";
		2706
		2707	cf::sync_job {
		2708	cf::write_runtime; # external watchdog should not bark
2037	cf::emergency_save;	2709	cf::emergency_save;
		2710	cf::write_runtime; # external watchdog should not bark
2038		2711
2039	eval {	2712	warn "syncing database to disk";
		2713	BDB::db_env_txn_checkpoint $DB_ENV;
		2714
2040	# if anything goes wrong in here, we should simply crash as we already saved	2715	# if anything goes wrong in here, we should simply crash as we already saved
2041		2716
2042	# cancel all watchers	2717	warn "cancelling all WF_AUTOCANCEL watchers";
2043	for (Event::all_watchers) {	2718	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	2719	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}	2720	}
2046		2721
		2722	warn "flushing outstanding aio requests";
		2723	for (;;) {
		2724	BDB::flush;
		2725	IO::AIO::flush;
		2726	Coro::cede;
		2727	last unless IO::AIO::nreqs || BDB::nreqs;
		2728	warn "iterate...";
		2729	}
		2730
		2731	++$RELOAD;
		2732
2047	# cancel all extension coros	2733	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	2734	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	2735	%EXT_CORO = ();
2050		2736
2051	# unload all extensions	2737	warn "removing commands";
2052	for (@exts) {	2738	%COMMAND = ();
		2739
		2740	warn "removing ext commands";
		2741	%EXTCMD = ();
		2742
		2743	warn "unloading/nuking all extensions";
		2744	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	2745	warn "... unloading $pkg";
2054	unload_extension $_;	2746
		2747	if (my $cb = $pkg->can ("unload")) {
		2748	eval {
		2749	$cb->($pkg);
		2750	1
		2751	} or warn "$pkg unloaded, but with errors: $@";
2055	}	2752	}
2056		2753
		2754	warn "... nuking $pkg";
		2755	Symbol::delete_package $pkg;
		2756	}
		2757
2057	# unload all modules loaded from $LIBDIR	2758	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	2759	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2760	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		2761
2061	warn "removing <$k>";	2762	warn "... unloading $k";
2062	delete $INC{$k};	2763	delete $INC{$k};
2063		2764
2064	$k =~ s/\.pm$//;	2765	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	2766	$k =~ s/\//::/g;
2066		2767
…		…
2069	}	2770	}
2070		2771
2071	Symbol::delete_package $k;	2772	Symbol::delete_package $k;
2072	}	2773	}
2073		2774
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	2775	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	2776	Symbol::delete_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2777	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		2778
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	2779	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	2780	delete $INC{"cf.pm"};
		2781	delete $INC{"cf/pod.pm"};
2087		2782
2088	# don't, removes xs symbols, too,	2783	# don't, removes xs symbols, too,
2089	# and global variables created in xs	2784	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	2785	#Symbol::delete_package __PACKAGE__;
2091		2786
2092	# reload cf.pm	2787	warn "unload completed, starting to reload now";
		2788
2093	warn "reloading cf.pm";	2789	warn "reloading cf.pm";
2094	require cf;	2790	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2791	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		2792
2097	# load config and database again	2793	warn "loading config and database again";
2098	cf::cfg_load;	2794	cf::cfg_load;
2099	cf::db_load;
2100		2795
2101	# load extensions
2102	warn "load extensions";	2796	warn "loading extensions";
2103	cf::load_extensions;	2797	cf::load_extensions;
2104		2798
2105	# reattach attachments to objects	2799	warn "reattaching attachments to objects/players";
2106	warn "reattach";	2800	_global_reattach; # objects, sockets
2107	_global_reattach;	2801	warn "reattaching attachments to maps";
2108	};	2802	reattach $_ for values %MAP;
		2803	warn "reattaching attachments to players";
		2804	reattach $_ for values %PLAYER;
2109		2805
2110	if ($@) {	2806	warn "leaving sync_job";
		2807
		2808	1
		2809	} or do {
2111	warn $@;	2810	warn $@;
2112	warn "error while reloading, exiting.";	2811	warn "error while reloading, exiting.";
2113	exit 1;	2812	exit 1;
2114	}	2813	};
2115		2814
2116	warn "reloaded successfully";	2815	warn "reloaded";
2117	};	2816	};
2118		2817
2119	#############################################################################	2818	our $RELOAD_WATCHER; # used only during reload
2120		2819
2121	unless ($LINK_MAP) {	2820	sub reload_perl() {
2122	$LINK_MAP = cf::map::new;	2821	# doing reload synchronously and two reloads happen back-to-back,
		2822	# coro crashes during coro_state_free->destroy here.
2123		2823
2124	$LINK_MAP->width (41);	2824	$RELOAD_WATCHER ||= Event->timer (
2125	$LINK_MAP->height (41);	2825	reentrant => 0,
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 10,	2826	after => 0,
		2827	data => WF_AUTOCANCEL,
2134	cb => sub {	2828	cb => sub {
2135	$_[0]->w->cancel;	2829	do_reload_perl;
2136		2830	undef $RELOAD_WATCHER;
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});	2831	},
2155		2832	);
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	2833	}
2161
2162	register "<global>", __PACKAGE__;
2163		2834
2164	register_command "reload" => sub {	2835	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	2836	my ($who, $arg) = @_;
2166		2837
2167	if ($who->flag (FLAG_WIZ)) {	2838	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	2839	$who->message ("reloading server.");
		2840	async { reload_perl };
2171	}	2841	}
2172	};	2842	};
2173		2843
2174	unshift @INC, $LIBDIR;	2844	unshift @INC, $LIBDIR;
2175		2845
		2846	my $bug_warning = 0;
		2847
		2848	our @WAIT_FOR_TICK;
		2849	our @WAIT_FOR_TICK_BEGIN;
		2850
		2851	sub wait_for_tick {
		2852	return unless $TICK_WATCHER->is_active;
		2853	return if $Coro::current == $Coro::main;
		2854
		2855	my $signal = new Coro::Signal;
		2856	push @WAIT_FOR_TICK, $signal;
		2857	$signal->wait;
		2858	}
		2859
		2860	sub wait_for_tick_begin {
		2861	return unless $TICK_WATCHER->is_active;
		2862	return if $Coro::current == $Coro::main;
		2863
		2864	my $signal = new Coro::Signal;
		2865	push @WAIT_FOR_TICK_BEGIN, $signal;
		2866	$signal->wait;
		2867	}
		2868
		2869	my $min = 1e6;#d#
		2870	my $avg = 10;
2176	$TICK_WATCHER = Event->timer (	2871	$TICK_WATCHER = Event->timer (
2177	reentrant => 0,	2872	reentrant => 0,
		2873	parked => 1,
2178	prio => 0,	2874	prio => 0,
2179	at => $NEXT_TICK || $TICK,	2875	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,	2876	data => WF_AUTOCANCEL,
2181	cb => sub {	2877	cb => sub {
		2878	if ($Coro::current != $Coro::main) {
		2879	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2880	unless ++$bug_warning > 10;
		2881	return;
		2882	}
		2883
		2884	$NOW = $tick_start = Event::time;
		2885
2182	cf::server_tick; # one server iteration	2886	cf::server_tick; # one server iteration
		2887
		2888	0 && sync_job {#d#
		2889	for(1..10) {
		2890	my $t = Event::time;
		2891	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		2892	or die;
		2893
		2894	$map->width (50);
		2895	$map->height (50);
		2896	$map->alloc;
		2897	$map->_load_objects ("/tmp/x.map", 1);
		2898	my $t = Event::time - $t;
		2899
		2900	#next unless $t < 0.0013;#d#
		2901	if ($t < $min) {
		2902	$min = $t;
		2903	}
		2904	$avg = $avg * 0.99 + $t * 0.01;
		2905	}
		2906	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		2907	exit 0;
		2908	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		2909	};
		2910
2183	$RUNTIME += $TICK;	2911	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;	2912	$NEXT_TICK += $TICK;
2185		2913
		2914	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2915	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2916	Coro::async_pool {
		2917	write_runtime
		2918	or warn "ERROR: unable to write runtime file: $!";
		2919	};
		2920	}
		2921
		2922	# my $AFTER = Event::time;
		2923	# warn $AFTER - $NOW;#d#
		2924
		2925	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2926	$sig->send;
		2927	}
		2928	while (my $sig = shift @WAIT_FOR_TICK) {
		2929	$sig->send;
		2930	}
		2931
		2932	$NOW = Event::time;
		2933
2186	# if we are delayed by four ticks or more, skip them all	2934	# if we are delayed by four ticks or more, skip them all
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2935	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2188		2936
2189	$TICK_WATCHER->at ($NEXT_TICK);	2937	$TICK_WATCHER->at ($NEXT_TICK);
2190	$TICK_WATCHER->start;	2938	$TICK_WATCHER->start;
		2939
		2940	$LOAD = ($NOW - $tick_start) / $TICK;
		2941	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2942
		2943	_post_tick;
		2944
		2945
2191	},	2946	},
2192	);	2947	);
2193		2948
		2949	{
2194	IO::AIO::max_poll_time $TICK * 0.2;	2950	BDB::max_poll_time $TICK * 0.1;
2195		2951	$BDB_POLL_WATCHER = Event->io (
2196	Event->io (	2952	reentrant => 0,
2197	fd => IO::AIO::poll_fileno,	2953	fd => BDB::poll_fileno,
2198	poll => 'r',	2954	poll => 'r',
2199	prio => 5,	2955	prio => 0,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,	2956	data => WF_AUTOCANCEL,
2206	after => 0,	2957	cb => \&BDB::poll_cb,
2207	interval => 10,	2958	);
2208	cb => sub {	2959	BDB::min_parallel 8;
2209	(Coro::unblock_sub {	2960
2210	write_runtime	2961	BDB::set_sync_prepare {
2211	or warn "ERROR: unable to write runtime file: $!";	2962	my $status;
		2963	my $current = $Coro::current;
		2964	(
		2965	sub {
		2966	$status = $!;
		2967	$current->ready; undef $current;
		2968	},
		2969	sub {
		2970	Coro::schedule while defined $current;
		2971	$! = $status;
		2972	},
		2973	)
		2974	};
		2975
		2976	unless ($DB_ENV) {
		2977	$DB_ENV = BDB::db_env_create;
		2978
		2979	cf::sync_job {
		2980	eval {
		2981	BDB::db_env_open
		2982	$DB_ENV,
		2983	$BDBDIR,
		2984	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2985	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2986	0666;
		2987
		2988	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2989
		2990	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2991	$DB_ENV->set_lk_detect;
		2992	};
		2993
		2994	cf::cleanup "db_env_open(db): $@" if $@;
2212	})->();	2995	};
2213	},	2996	}
2214	);	2997	}
		2998
		2999	{
		3000	IO::AIO::min_parallel 8;
		3001
		3002	undef $Coro::AIO::WATCHER;
		3003	IO::AIO::max_poll_time $TICK * 0.1;
		3004	$AIO_POLL_WATCHER = Event->io (
		3005	reentrant => 0,
		3006	data => WF_AUTOCANCEL,
		3007	fd => IO::AIO::poll_fileno,
		3008	poll => 'r',
		3009	prio => 6,
		3010	cb => \&IO::AIO::poll_cb,
		3011	);
		3012	}
		3013
		3014	my $_log_backtrace;
		3015
		3016	sub _log_backtrace {
		3017	my ($msg, @addr) = @_;
		3018
		3019	$msg =~ s/\n//;
		3020
		3021	# limit the # of concurrent backtraces
		3022	if ($_log_backtrace < 2) {
		3023	++$_log_backtrace;
		3024	async {
		3025	my @bt = fork_call {
		3026	@addr = map { sprintf "%x", $_ } @addr;
		3027	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3028	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3029	or die "addr2line: $!";
		3030
		3031	my @funcs;
		3032	my @res = <$fh>;
		3033	chomp for @res;
		3034	while (@res) {
		3035	my ($func, $line) = splice @res, 0, 2, ();
		3036	push @funcs, "[$func] $line";
		3037	}
		3038
		3039	@funcs
		3040	};
		3041
		3042	LOG llevInfo, "[ABT] $msg\n";
		3043	LOG llevInfo, "[ABT] $_\n" for @bt;
		3044	--$_log_backtrace;
		3045	};
		3046	} else {
		3047	LOG llevInfo, "[ABT] $msg\n";
		3048	LOG llevInfo, "[ABT] [suppressed]\n";
		3049	}
		3050	}
		3051
		3052	# load additional modules
		3053	use cf::pod;
2215		3054
2216	END { cf::emergency_save }	3055	END { cf::emergency_save }
2217		3056
2218	1	3057	1
2219		3058

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