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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.143 by root, Sun Jan 7 02:39:14 2007 UTC vs.
Revision 1.267 by root, Sat May 19 00:08:11 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
52	our %PLAYER; # all users	88	our %PLAYER; # all users
53	our %MAP; # all maps	89	our %MAP; # all maps
54	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	91
56	our %EXT_CORO; # coroutines bound to extensions	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 $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
77		115
78	#############################################################################	116	#############################################################################
79		117
80	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
81		119
…		…
88	=item $cf::RUNTIME	126	=item $cf::RUNTIME
89		127
90	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
91	every server tick.	129	every server tick.
92		130
93	=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
94		134
95	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		139
98	=item $cf::NOW	140	=item $cf::NOW
99		141
100	The time of the last (current) server tick.	142	The time of the last (current) server tick.
101		143
102	=item $cf::TICK	144	=item $cf::TICK
103		145
104	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.
105		157
106	=item %cf::CFG	158	=item %cf::CFG
107		159
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		168
111	=back	169	=back
112		170
113	=cut	171	=cut
114		172
115	BEGIN {	173	BEGIN {
116	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	175	my $msg = join "", @_;
118	utf8::encode $msg;
119		176
120	$msg .= "\n"	177	$msg .= "\n"
121	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
122		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
124	};	184	};
125	}	185	}
126		186
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		206
147	$Event::DIED = sub {	207	$Event::DIED = sub {
148	warn "error in event callback: @_";	208	warn "error in event callback: @_";
149	};	209	};
150		210
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
156		212
157	=over 4	213	=over 4
158		214
159	=cut	215	=item dumpval $ref
160		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
161	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
162		239
163	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
164		241
165	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
166		243
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
175		245
176	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
177
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		247
185	=item cf::lock_wait $string	248	=item cf::lock_wait $string
186		249
187	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
188		251
…		…
194	returned.	257	returned.
195		258
196	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
197	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
198		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
199	=cut	266	=cut
200		267
201	our %LOCK;	268	our %LOCK;
202		269
203	sub lock_wait($) {	270	sub lock_wait($) {
…		…
222	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
224	}	291	}
225	}	292	}
226		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
227	sub freeze_mainloop {	300	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
229		302
230	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
231	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
232	$guard	307	$guard
233	}	308	}
234		309
235	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
257		332
258	sub sync_job(&) {	333	sub sync_job(&) {
259	my ($job) = @_;	334	my ($job) = @_;
260		335
261	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
262	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
264		341
265	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
277		354
278	while ($busy) {	355	while ($busy) {
279	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
280	}	357	}
281		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
282	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
283	} else {	367	} else {
284	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
285		369
286	$job->()	370	$job->()
287	}	371	}
288	}	372	}
289		373
290	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
291		375
292	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	377	extension calling this is being unloaded.
294		378
295	=cut	379	=cut
296		380
297	sub async_ext(&) {	381	sub async_ext(&) {
…		…
306		390
307	$coro	391	$coro
308	}	392	}
309		393
310	sub write_runtime {	394	sub write_runtime {
311	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";
312		405
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
314	or return;	407	or return;
315		408
		409	my $value = $cf::RUNTIME + 90 + 10;
316	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
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;	414	and return;
319		415
		416	# always fsync - this file is important
320	aio_fsync $fh	417	aio_fsync $fh
321	and return;	418	and return;
322		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
323	close $fh	423	close $fh
324	or return;	424	or return;
325		425
326	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
327	and return;	427	and return;
328		428
		429	warn "runtime file written.\n";#d#
		430
329	1	431	1
330	}	432	}
331		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
332	=back	445	=back
333		446
334	=cut	447	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		448
456	#############################################################################	449	#############################################################################
457		450
458	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
459		452
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	579	our @CB_MAP = ();
587		580
588	my %attachment;	581	my %attachment;
589		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
590	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
592		591
593	use sort 'stable';	592	use sort 'stable';
594		593
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
629		628
630	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		633
635	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	635	my $pkg = shift @arg;
637		636
638	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
679	if (ref $_[0]) {	678	if (ref $_[0]) {
680	_object_attach @_;	679	_object_attach @_;
681	} else {	680	} else {
682	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
683	}	682	}
		683	_recalc_want;
684	};	684	};
685		685
686	# all those should be optimised	686	# all those should be optimised
687	sub cf::attachable::detach {	687	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
692	reattach ($obj);	692	reattach ($obj);
693	} else {	693	} else {
694	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
695	}	695	}
		696	_recalc_want;
696	};	697	};
697		698
698	sub cf::attachable::attached {	699	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
700		701
…		…
765	# object support	766	# object support
766		767
767	sub reattach {	768	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		773
771	my $registry = $obj->registry;	774	my $registry = $obj->registry;
772		775
773	@$registry = ();	776	@$registry = ();
774		777
…		…
821	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
822		825
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	830	close $fh;
828		831
829	if (@$objs) {	832	if (@$objs) {
830	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) {
831	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	838	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
837	}	840	}
838	} else {	841	} else {
839	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
906	=cut	909	=cut
907		910
908	sub register_extcmd {	911	sub register_extcmd {
909	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
910		913
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
915	}	915	}
916		916
917	cf::player->attach (	917	cf::player->attach (
918	on_command => sub {	918	on_command => sub {
919	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
932		932
933	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
934		934
935	if (ref $msg) {	935	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}	939	}
940	}	940	}
941	} else {	941	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
944		944
945	cf::override;	945	cf::override;
946	},	946	},
947	);	947	);
948		948
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	949	sub load_extension {
956	my ($path) = @_;	950	my ($path) = @_;
957		951
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;	953	my $base = $1;
960	my $pkg = $1;	954	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
963		957
964	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
965		959
966	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
967	or die "$path: $!";	961	or die "$path: $!";
968		962
969	my $source =	963	my $source =
970	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
973	. "\n};\n1";	967	. "\n};\n1";
974		968
975	eval $source	969	unless (eval $source) {
976	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
977	: "extension disabled.\n";	971	: "extension disabled.\n";
978		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
979	push @exts, $pkg;	973	warn $@;
980	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
981		975	exit 1;
982	# no strict 'refs';	976	}
983	# @{"$pkg\::ISA"} = ext::;	977	die $@;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }	978	}
998		979
999	# remove commands	980	push @EXTS, $pkg;
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	981	}
1024		982
1025	sub load_extensions {	983	sub load_extensions {
1026	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	985	next unless -r $ext;
…		…
1031	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1032	}	990	}
1033	}	991	}
1034		992
1035	#############################################################################	993	#############################################################################
1036	# load/save/clean perl data associated with a map
1037
1038	*cf::mapsupport::on_clean = sub {
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		994
1073	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1074		996
1075	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1076		998
1077	=cut	999	=cut
1078		1000
1079	package cf::player;	1001	package cf::player;
1080		1002
		1003	use Coro::AIO;
		1004
1081	=head3 cf::player	1005	=head3 cf::player
1082		1006
1083	=over 4	1007	=over 4
1084		1008
1085	=item cf::player::find $login	1009	=item cf::player::find $login
1086		1010
1087	Returns the given player object, loading it if necessary (might block).	1011	Returns the given player object, loading it if necessary (might block).
1088		1012
1089	=cut	1013	=cut
1090		1014
		1015	sub playerdir($) {
		1016	"$PLAYERDIR/"
		1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1018	}
		1019
1091	sub path($) {	1020	sub path($) {
1092	sprintf "%s/%s/%s/%s.pl",	1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1093	cf::localdir, cf::playerdir,	1022
1094	(ref $_[0] ? $_[0]->ob->name : $_[0]) x 2	1023	(playerdir $login) . "/playerdata"
1095	}	1024	}
1096		1025
1097	sub find_active($) {	1026	sub find_active($) {
1098	$cf::PLAYER{$_[0]}	1027	$cf::PLAYER{$_[0]}
1099	and $cf::PLAYER{$_[0]}->active	1028	and $cf::PLAYER{$_[0]}->active
…		…
1102		1031
1103	sub exists($) {	1032	sub exists($) {
1104	my ($login) = @_;	1033	my ($login) = @_;
1105		1034
1106	$cf::PLAYER{$login}	1035	$cf::PLAYER{$login}
1107	or cf::sync_job { !aio_stat $login }	1036	or cf::sync_job { !aio_stat path $login }
1108	}	1037	}
1109		1038
1110	sub find($) {	1039	sub find($) {
1111	return $cf::PLAYER{$_[0]} || do {	1040	return $cf::PLAYER{$_[0]} || do {
1112	my $login = $_[0];	1041	my $login = $_[0];
1113		1042
1114	my $guard = cf::lock_acquire "user_find:$login";	1043	my $guard = cf::lock_acquire "user_find:$login";
1115		1044
1116	$cf::PLAYER{$login} ||= (load_pl path $login or return);	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	}
1117	};	1057	}
1118	}	1058	}
1119		1059
1120	sub save($) {	1060	sub save($) {
1121	my ($pl) = @_;	1061	my ($pl) = @_;
1122		1062
…		…
1124		1064
1125	my $path = path $pl;	1065	my $path = path $pl;
1126	my $guard = cf::lock_acquire "user_save:$path";	1066	my $guard = cf::lock_acquire "user_save:$path";
1127		1067
1128	return if $pl->{deny_save};	1068	return if $pl->{deny_save};
		1069
		1070	aio_mkdir playerdir $pl, 0770;
1129	$pl->{last_save} = $cf::RUNTIME;	1071	$pl->{last_save} = $cf::RUNTIME;
1130		1072
1131	Coro::cede;
1132	$pl->save_pl ($path);	1073	$pl->save_pl ($path);
1133	Coro::cede;	1074	Coro::cede;
1134	}	1075	}
1135		1076
1136	sub new($) {	1077	sub new($) {
…		…
1144	$cf::PLAYER{$login} = $self;	1085	$cf::PLAYER{$login} = $self;
1145		1086
1146	$self	1087	$self
1147	}	1088	}
1148		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
1149	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1150		1192
1151	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1152		1194
1153	=cut	1195	=cut
1154		1196
1155	sub ext_reply($$$%) {	1197	sub ext_reply($$%) {
1156	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1157		1199
1158	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1159		1201
1160	$self->send ("ext " . cf::to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
1161	}	1203	}
1162		1204
1163	package cf;	1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		1212	my ($self, $type, %msg) = @_;
		1213
		1214	$self->ns->ext_event ($type, %msg);
		1215	}
		1216
		1217	=head3 cf::region
		1218
		1219	=over 4
		1220
		1221	=cut
		1222
		1223	package cf::region;
		1224
		1225	=item cf::region::find_by_path $path
		1226
		1227	Tries to decuce the probable region for a map knowing only its path.
		1228
		1229	=cut
		1230
		1231	sub find_by_path($) {
		1232	my ($path) = @_;
		1233
		1234	my ($match, $specificity);
		1235
		1236	for my $region (list) {
		1237	if ($region->match && $path =~ $region->match) {
		1238	($match, $specificity) = ($region, $region->specificity)
		1239	if $region->specificity > $specificity;
		1240	}
		1241	}
		1242
		1243	$match
		1244	}
1164		1245
1165	=back	1246	=back
1166
1167		1247
1168	=head3 cf::map	1248	=head3 cf::map
1169		1249
1170	=over 4	1250	=over 4
1171		1251
…		…
1174	package cf::map;	1254	package cf::map;
1175		1255
1176	use Fcntl;	1256	use Fcntl;
1177	use Coro::AIO;	1257	use Coro::AIO;
1178		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1179	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1180	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1181		1265
1182	sub generate_random_map {	1266	sub generate_random_map {
1183	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1184
1185	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1186	cf::map::_create_random_map	1269	$self->_create_random_map (
1187	$path,
1188	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1189	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1190	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1191	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1192	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1193	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1194	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1195	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1196	$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},
1197	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1198	(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"
1199	}	1411	}
1200		1412
1201	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1202	# all maps in C++...	1414	# all maps in C++...
1203	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1205		1417
1206	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1207	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1208	}	1420	}
1209		1421
		1422	sub unlink_save {
		1423	my ($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
1210	sub try_load_header($) {	1430	sub load_header_from($) {
1211	my ($path) = @_;	1431	my ($self, $path) = @_;
1212		1432
1213	utf8::encode $path;	1433	utf8::encode $path;
1214	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1215	or return;	1438	or return;
1216		1439
1217	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
1218	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1219		1486
1220	# for better error messages only, will be overwritten	1487	$self->default_region (cf::region::find_by_path $self->{path})
1221	$map->path ($path);	1488	unless $self->default_region;
1222		1489
1223	$map->load_header ($path)	1490	1
1224	or return;
1225
1226	$map->{load_path} = $path;
1227
1228	$map
1229	}	1491	}
1230		1492
1231	sub find;	1493	sub find;
1232	sub find {	1494	sub find {
1233	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1234		1496
1235	#warn "find<$path,$origin>\n";#d#
1236
1237	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1238	my $key = $path->as_string;
1239		1498
1240	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1241		1500
1242	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1243	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1244		1503	my $map = new_from_path cf::map $path
1245	# do it the slow way
1246	my $map = try_load_header $path->save_path;
1247
1248	Coro::cede;
1249
1250	if ($map) {
1251	$map->last_access ((delete $map->{last_access})
1252	|| $cf::RUNTIME); #d#
1253	# safety
1254	$map->{instantiate_time} = $cf::RUNTIME
1255	if $map->{instantiate_time} > $cf::RUNTIME;
1256	} else {
1257	if (my $rmp = $path->random_map_params) {
1258	$map = generate_random_map $key, $rmp;
1259	} else {
1260	$map = try_load_header $path->load_path;
1261	}
1262
1263	$map or return;	1504	or return;
1264		1505
1265	$map->{load_original} = 1;
1266	$map->{instantiate_time} = $cf::RUNTIME;
1267	$map->last_access ($cf::RUNTIME);
1268	$map->instantiate;
1269
1270	# per-player maps become, after loading, normal maps
1271	$map->per_player (0) if $path->{user_rel};
1272	}
1273
1274	$map->path ($key);
1275	$map->{path} = $path;
1276	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1277		1507
1278	Coro::cede;	1508	$map->load_header
		1509	or return;
1279		1510
1280	if ($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;
1281	$map->reset;	1514	$map->reset;
1282	undef $guard;	1515	undef $guard;
1283	$map = find $path	1516	return find $path;
1284	or return;
1285	}	1517	}
1286		1518
1287	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1288	}	1520	}
1289	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1290		1525
1291	sub load {	1526	sub load {
1292	my ($self) = @_;	1527	my ($self) = @_;
1293		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1294	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1295	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1296		1535
1297	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1298		1537
1299	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1300		1539
1301	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1302	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1303	or return;	1546	or return;
1304		1547
1305	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1306	if delete $self->{load_original};	1549	if delete $self->{load_original};
1307		1550
1308	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1309	utf8::encode $uniq;	1552	utf8::encode $uniq;
1310	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1311	$self->clear_unique_items;	1554	$self->clear_unique_items;
1312	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1313	}	1556	}
1314	}	1557	}
1315		1558
1316	Coro::cede;	1559	Coro::cede;
1317
1318	# now do the right thing for maps	1560	# now do the right thing for maps
1319	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1320
1321	if ($self->{path}->is_style_map) {
1322	$self->{deny_save} = 1;
1323	$self->{deny_reset} = 1;
1324	} else {
1325	$self->fix_auto_apply;
1326	$self->decay_objects;
1327	$self->update_buttons;
1328	$self->set_darkness_map;
1329	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1330	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;
1331	$self->activate;	1573	$self->activate;
1332	}	1574	}
1333		1575
1334	Coro::cede;
1335
1336	$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	$neigh->load;
		1612	}
1337	}	1613	}
1338		1614
1339	sub find_sync {	1615	sub find_sync {
1340	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1341		1617
1342	cf::sync_job { cf::map::find $path, $origin }	1618	cf::sync_job { find $path, $origin }
1343	}	1619	}
1344		1620
1345	sub do_load_sync {	1621	sub do_load_sync {
1346	my ($map) = @_;	1622	my ($map) = @_;
1347		1623
1348	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1349	}	1625	}
1350		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	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
		1655	}
		1656
1351	sub save {	1657	sub save {
1352	my ($self) = @_;	1658	my ($self) = @_;
1353		1659
1354	my $lock = cf::lock_acquire "map_data:" . $self->path;	1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1355		1661
1356	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1357		1663
1358	return unless $self->dirty;	1664	return unless $self->dirty;
1359		1665
1360	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1361	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1362		1668
1363	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1364		1670
1365	return if $self->{deny_save};	1671	return if $self->{deny_save};
1366		1672
…		…
1369	cf::async {	1675	cf::async {
1370	$_->contr->save for $self->players;	1676	$_->contr->save for $self->players;
1371	};	1677	};
1372		1678
1373	if ($uniq) {	1679	if ($uniq) {
1374	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1375	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1376	} else {	1682	} else {
1377	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1378	}	1684	}
1379	}	1685	}
1380		1686
1381	sub swap_out {	1687	sub swap_out {
1382	my ($self) = @_;	1688	my ($self) = @_;
…		…
1396		1702
1397	sub reset_at {	1703	sub reset_at {
1398	my ($self) = @_;	1704	my ($self) = @_;
1399		1705
1400	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1401	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1402	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1403		1709
1404	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1405	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1406		1712
…		…
1411	my ($self) = @_;	1717	my ($self) = @_;
1412		1718
1413	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1414	}	1720	}
1415		1721
1416	sub unlink_save {
1417	my ($self) = @_;
1418
1419	utf8::encode (my $save = $self->{path}->save_path);
1420	aioreq_pri 3; IO::AIO::aio_unlink $save;
1421	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1422	}
1423
1424	sub rename {
1425	my ($self, $new_path) = @_;
1426
1427	$self->unlink_save;
1428
1429	delete $cf::MAP{$self->path};
1430	$self->{path} = new cf::path $new_path;
1431	$self->path ($self->{path}->as_string);
1432	$cf::MAP{$self->path} = $self;
1433
1434	$self->save;
1435	}
1436
1437	sub reset {	1722	sub reset {
1438	my ($self) = @_;	1723	my ($self) = @_;
1439		1724
1440	my $lock = cf::lock_acquire "map_data:" . $self->path;	1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
1441		1726
1442	return if $self->players;	1727	return if $self->players;
1443	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1444		1729
1445	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1446		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
1447	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1448		1745
1449	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1450		1747
1451	$self->unlink_save;	1748	$self->unlink_save;
1452	$self->destroy;	1749	$self->destroy;
…		…
1455	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1456		1753
1457	sub nuke {	1754	sub nuke {
1458	my ($self) = @_;	1755	my ($self) = @_;
1459		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1460	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1461	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1462	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1463	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1464	}	1770	}
1465		1771
1466	sub customise_for {	1772	=item cf::map::unique_maps
1467	my ($map, $ob) = @_;
1468		1773
1469	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1470	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1471	}
1472		1776
1473	$map	1777	=cut
1474	}
1475		1778
1476	sub emergency_save {	1779	sub unique_maps() {
1477	my $freeze_guard = cf::freeze_mainloop;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1478		1782
1479	warn "enter emergency map save\n";	1783	my @paths;
1480		1784
1481	cf::sync_job {	1785	for (@$files) {
1482	warn "begin emergency map save\n";	1786	utf8::decode $_;
1483	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1484	};	1791	}
1485		1792
1486	warn "end emergency map save\n";	1793	\@paths
1487	}	1794	}
1488		1795
1489	package cf;	1796	package cf;
1490		1797
1491	=back	1798	=back
1492		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
1493		1826
1494	=head3 cf::object::player	1827	=head3 cf::object::player
1495		1828
1496	=over 4	1829	=over 4
1497		1830
…		…
1537		1870
1538	=item $player_object->enter_link	1871	=item $player_object->enter_link
1539		1872
1540	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}>).
1541		1874
1542	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
1543	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1544		1877
		1878	Will never block.
		1879
1545	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1546		1881
1547	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1548	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1549	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1550	to the emergency map position.	1885	fails, to the emergency map position.
1551		1886
1552	Might block.	1887	Might block.
1553		1888
1554	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1555		1900
1556	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1557	my ($self) = @_;	1902	my ($self) = @_;
1558		1903
1559	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1560		1905
1561	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1562		1907
1563	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1564	if $self->map;	1909	if $self->map;
1565		1910
1566	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1567	}	1912	}
1568		1913
1569	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1570	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1571		1916
…		…
1589	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1590	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1591	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1592		1937
1593	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1594		1940
1595	return unless $self->contr->active;	1941	return unless $self->contr->active;
1596	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1597	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1598	}	1946	}
1599		1947
1600	cf::player->attach (	1948	cf::player->attach (
1601	on_logout => sub {	1949	on_logout => sub {
…		…
1614	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1615	# should happen only on crashes	1963	# should happen only on crashes
1616	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1617	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1618	(async {	1966	(async {
1619	# we need this sleep as the login has a concurrent enter_exit running
1620	# and this sleep increases chances of the player not ending up in scorn
1621	$pl->ob->reply (undef,	1967	$pl->ob->reply (undef,
1622	"There was an internal problem at your last logout, "	1968	"There was an internal problem at your last logout, "
1623	. "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.",
1624	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
1625	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1626	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1627	})->prio (2);	1975	})->prio (2);
1628	}	1976	}
1629	},	1977	},
…		…
1637	my ($self, $path, $x, $y) = @_;	1985	my ($self, $path, $x, $y) = @_;
1638		1986
1639	$self->enter_link;	1987	$self->enter_link;
1640		1988
1641	(async {	1989	(async {
1642	$path = new cf::path $path;	1990	my $map = eval {
1643
1644	my $map = cf::map::find $path->as_string;	1991	my $map = cf::map::find $path;
1645	$map = $map->customise_for ($self) if $map;	1992	$map = $map->customise_for ($self) if $map;
1646		1993	$map
1647	# warn "entering ", $map->path, " at ($x, $y)\n"	1994	} or
1648	# if $map;
1649
1650	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1651		1996
1652	$self->leave_link ($map, $x, $y);	1997	$self->leave_link ($map, $x, $y);
1653	})->prio (1);	1998	})->prio (1);
1654	}	1999	}
1655		2000
…		…
1659		2004
1660	sub parse_random_map_params {	2005	sub parse_random_map_params {
1661	my ($spec) = @_;	2006	my ($spec) = @_;
1662		2007
1663	my $rmp = { # defaults	2008	my $rmp = { # defaults
1664	xsize => 10,	2009	xsize => (cf::rndm 15, 40),
1665	ysize => 10,	2010	ysize => (cf::rndm 15, 40),
		2011	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2012	#layout => string,
1666	};	2013	};
1667		2014
1668	for (split /\n/, $spec) {	2015	for (split /\n/, $spec) {
1669	my ($k, $v) = split /\s+/, $_, 2;	2016	my ($k, $v) = split /\s+/, $_, 2;
1670		2017
…		…
1674	$rmp	2021	$rmp
1675	}	2022	}
1676		2023
1677	sub prepare_random_map {	2024	sub prepare_random_map {
1678	my ($exit) = @_;	2025	my ($exit) = @_;
		2026
		2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
1679		2028
1680	# all this does is basically replace the /! path by	2029	# all this does is basically replace the /! path by
1681	# a new random map path (?random/...) with a seed	2030	# a new random map path (?random/...) with a seed
1682	# that depends on the exit object	2031	# that depends on the exit object
1683		2032
1684	my $rmp = parse_random_map_params $exit->msg;	2033	my $rmp = parse_random_map_params $exit->msg;
1685		2034
1686	if ($exit->map) {	2035	if ($exit->map) {
1687	$rmp->{region} = $exit->map->region_name;	2036	$rmp->{region} = $exit->region->name;
1688	$rmp->{origin_map} = $exit->map->path;	2037	$rmp->{origin_map} = $exit->map->path;
1689	$rmp->{origin_x} = $exit->x;	2038	$rmp->{origin_x} = $exit->x;
1690	$rmp->{origin_y} = $exit->y;	2039	$rmp->{origin_y} = $exit->y;
1691	}	2040	}
1692		2041
1693	$rmp->{random_seed} ||= $exit->random_seed;	2042	$rmp->{random_seed} ||= $exit->random_seed;
1694		2043
1695	my $data = cf::to_json $rmp;	2044	my $data = cf::to_json $rmp;
1696	my $md5 = Digest::MD5::md5_hex $data;	2045	my $md5 = Digest::MD5::md5_hex $data;
		2046	my $meta = "$RANDOMDIR/$md5.meta";
1697		2047
1698	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2048	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1699	aio_write $fh, 0, (length $data), $data, 0;	2049	aio_write $fh, 0, (length $data), $data, 0;
		2050	undef $fh;
		2051	aio_rename "$meta~", $meta;
1700		2052
1701	$exit->slaying ("?random/$md5");	2053	$exit->slaying ("?random/$md5");
1702	$exit->msg (undef);	2054	$exit->msg (undef);
1703	}	2055	}
1704	}	2056	}
1705		2057
1706	sub cf::object::player::enter_exit {	2058	sub cf::object::player::enter_exit {
1707	my ($self, $exit) = @_;	2059	my ($self, $exit) = @_;
1708		2060
1709	return unless $self->type == cf::PLAYER;	2061	return unless $self->type == cf::PLAYER;
		2062
		2063	if ($exit->slaying eq "/!") {
		2064	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2065	# the problem is that $exit might not survive long enough
		2066	# so it needs to be done right now, right here
		2067	cf::sync_job { prepare_random_map $exit };
		2068	}
		2069
		2070	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2071	my $hp = $exit->stats->hp;
		2072	my $sp = $exit->stats->sp;
1710		2073
1711	$self->enter_link;	2074	$self->enter_link;
1712		2075
1713	(async {	2076	(async {
1714	$self->deactivate_recursive; # just to be sure	2077	$self->deactivate_recursive; # just to be sure
1715	unless (eval {	2078	unless (eval {
1716	prepare_random_map $exit	2079	$self->goto ($slaying, $hp, $sp);
1717	if $exit->slaying eq "/!";
1718
1719	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1720	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1721		2080
1722	1;	2081	1;
1723	}) {	2082	}) {
1724	$self->message ("Something went wrong deep within the crossfire server. "	2083	$self->message ("Something went wrong deep within the crossfire server. "
1725	. "I'll try to bring you back to the map you were before. "	2084	. "I'll try to bring you back to the map you were before. "
1726	. "Please report this to the dungeon master",	2085	. "Please report this to the dungeon master!",
1727	cf::NDI_UNIQUE | cf::NDI_RED);	2086	cf::NDI_UNIQUE | cf::NDI_RED);
1728		2087
1729	warn "ERROR in enter_exit: $@";	2088	warn "ERROR in enter_exit: $@";
1730	$self->leave_link;	2089	$self->leave_link;
1731	}	2090	}
1732	})->prio (1);	2091	})->prio (1);
…		…
1745		2104
1746	sub cf::client::send_drawinfo {	2105	sub cf::client::send_drawinfo {
1747	my ($self, $text, $flags) = @_;	2106	my ($self, $text, $flags) = @_;
1748		2107
1749	utf8::encode $text;	2108	utf8::encode $text;
1750	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1751	}	2110	}
1752		2111
		2112	=item $client->ext_event ($type, %msg)
		2113
		2114	Sends an exti event to the client.
		2115
		2116	=cut
		2117
		2118	sub cf::client::ext_event($$%) {
		2119	my ($self, $type, %msg) = @_;
		2120
		2121	$msg{msgtype} = "event_$type";
		2122	$self->send_packet ("ext " . cf::to_json \%msg);
		2123	}
1753		2124
1754	=item $success = $client->query ($flags, "text", \&cb)	2125	=item $success = $client->query ($flags, "text", \&cb)
1755		2126
1756	Queues a query to the client, calling the given callback with	2127	Queues a query to the client, calling the given callback with
1757	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1786	# get handled first	2157	# get handled first
1787	my $queue = delete $ns->{query_queue}	2158	my $queue = delete $ns->{query_queue}
1788	or return; # be conservative, not sure how that can happen, but we saw a crash here	2159	or return; # be conservative, not sure how that can happen, but we saw a crash here
1789		2160
1790	(shift @$queue)->[1]->($msg);	2161	(shift @$queue)->[1]->($msg);
		2162	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1791		2163
1792	push @{ $ns->{query_queue} }, @$queue;	2164	push @{ $ns->{query_queue} }, @$queue;
1793		2165
1794	if (@{ $ns->{query_queue} } == @$queue) {	2166	if (@{ $ns->{query_queue} } == @$queue) {
1795	if (@$queue) {	2167	if (@$queue) {
…		…
1853		2225
1854	# here we export the classes and methods available to script code	2226	# here we export the classes and methods available to script code
1855		2227
1856	=pod	2228	=pod
1857		2229
1858	The following fucntions and emthods are available within a safe environment:	2230	The following functions and methods are available within a safe environment:
1859		2231
1860	cf::object contr pay_amount pay_player map	2232	cf::object contr pay_amount pay_player map
1861	cf::object::player player	2233	cf::object::player player
1862	cf::player peaceful	2234	cf::player peaceful
1863	cf::map trigger	2235	cf::map trigger
…		…
1948	#############################################################################	2320	#############################################################################
1949		2321
1950	=head2 EXTENSION DATABASE SUPPORT	2322	=head2 EXTENSION DATABASE SUPPORT
1951		2323
1952	Crossfire maintains a very simple database for extension use. It can	2324	Crossfire maintains a very simple database for extension use. It can
1953	currently store anything that can be serialised using Storable, which	2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1954	excludes objects.	2326	convert to/from binary).
1955		2327
1956	The parameter C<$family> should best start with the name of the extension	2328	The parameter C<$family> should best start with the name of the extension
1957	using it, it should be unique.	2329	using it, it should be unique.
1958		2330
1959	=over 4	2331	=over 4
1960		2332
1961	=item $hashref = cf::db_get $family
1962
1963	Return a hashref for use by the extension C<$family>, which can be
1964	modified. After modifications, you have to call C<cf::db_dirty> or
1965	C<cf::db_sync>.
1966
1967	=item $value = cf::db_get $family => $key	2333	=item $value = cf::db_get $family => $key
1968		2334
1969	Returns a single value from the database	2335	Returns a single value from the database.
1970
1971	=item cf::db_put $family => $hashref
1972
1973	Stores the given family hashref into the database. Updates are delayed, if
1974	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1975		2336
1976	=item cf::db_put $family => $key => $value	2337	=item cf::db_put $family => $key => $value
1977		2338
1978	Stores the given C<$value> in the family hash. Updates are delayed, if you	2339	Stores the given C<$value> in the family.
1979	want the data to be synced to disk immediately, use C<cf::db_sync>.
1980
1981	=item cf::db_dirty
1982
1983	Marks the database as dirty, to be updated at a later time.
1984
1985	=item cf::db_sync
1986
1987	Immediately write the database to disk I<if it is dirty>.
1988		2340
1989	=cut	2341	=cut
1990		2342
1991	our $DB;	2343	our $DB;
1992		2344
1993	{	2345	sub db_init {
1994	my $path = cf::localdir . "/database.pst";	2346	unless ($DB) {
		2347	$DB = BDB::db_create $DB_ENV;
1995		2348
1996	sub db_load() {	2349	cf::sync_job {
1997	$DB = stat $path ? Storable::retrieve $path : { };	2350	eval {
1998	}	2351	$DB->set_flags (BDB::CHKSUM);
1999		2352
2000	my $pid;	2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2001		2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2002	sub db_save() {	2355	cf::cleanup "db_open(db): $!" if $!;
2003	waitpid $pid, 0 if $pid;	2356	};
2004	if (0 == ($pid = fork)) {	2357	cf::cleanup "db_open(db): $@" if $@;
2005	$DB->{_meta}{version} = 1;
2006	Storable::nstore $DB, "$path~";
2007	rename "$path~", $path;
2008	cf::_exit 0 if defined $pid;
2009	}	2358	};
2010	}
2011
2012	my $dirty;
2013
2014	sub db_sync() {
2015	db_save if $dirty;
2016	undef $dirty;
2017	}
2018
2019	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2020	db_sync;
2021	});	2359	}
		2360	}
2022		2361
2023	sub db_dirty() {
2024	$dirty = 1;
2025	$idle->start;
2026	}
2027
2028	sub db_get($;$) {	2362	sub db_get($$) {
2029	@_ >= 2	2363	my $key = "$_[0]/$_[1]";
2030	? $DB->{$_[0]}{$_[1]}
2031	: ($DB->{$_[0]} ||= { })
2032	}
2033		2364
		2365	cf::sync_job {
		2366	BDB::db_get $DB, undef, $key, my $data;
		2367
		2368	$! ? ()
		2369	: $data
		2370	}
		2371	}
		2372
2034	sub db_put($$;$) {	2373	sub db_put($$$) {
2035	if (@_ >= 3) {	2374	BDB::dbreq_pri 4;
2036	$DB->{$_[0]}{$_[1]} = $_[2];	2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2037	} else {	2376	}
2038	$DB->{$_[0]} = $_[1];
2039	}
2040	db_dirty;
2041	}
2042		2377
2043	cf::global->attach (	2378	=item cf::cache $id => [$paths...], $processversion => $process
2044	prio => 10000,	2379
2045	on_cleanup => sub {	2380	Generic caching function that returns the value of the resource $id,
2046	db_sync;	2381	caching and regenerating as required.
		2382
		2383	This function can block.
		2384
		2385	=cut
		2386
		2387	sub cache {
		2388	my ($id, $src, $processversion, $process) = @_;
		2389
		2390	my $meta =
		2391	join "\x00",
		2392	$processversion,
		2393	map {
		2394	aio_stat $_
		2395	and Carp::croak "$_: $!";
		2396
		2397	($_, (stat _)[7,9])
		2398	} @$src;
		2399
		2400	my $dbmeta = db_get cache => "$id/meta";
		2401	if ($dbmeta ne $meta) {
		2402	# changed, we may need to process
		2403
		2404	my @data;
		2405	my $md5;
		2406
		2407	for (0 .. $#$src) {
		2408	0 <= aio_load $src->[$_], $data[$_]
		2409	or Carp::croak "$src->[$_]: $!";
2047	},	2410	}
2048	);	2411
		2412	# if processing is expensive, check
		2413	# checksum first
		2414	if (1) {
		2415	$md5 =
		2416	join "\x00",
		2417	$processversion,
		2418	map {
		2419	Coro::cede;
		2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2421	} 0.. $#$src;
		2422
		2423
		2424	my $dbmd5 = db_get cache => "$id/md5";
		2425	if ($dbmd5 eq $md5) {
		2426	db_put cache => "$id/meta", $meta;
		2427
		2428	return db_get cache => "$id/data";
		2429	}
		2430	}
		2431
		2432	my $t1 = Time::HiRes::time;
		2433	my $data = $process->(\@data);
		2434	my $t2 = Time::HiRes::time;
		2435
		2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2437
		2438	db_put cache => "$id/data", $data;
		2439	db_put cache => "$id/md5" , $md5;
		2440	db_put cache => "$id/meta", $meta;
		2441
		2442	return $data;
		2443	}
		2444
		2445	db_get cache => "$id/data"
2049	}	2446	}
		2447
		2448	=item fork_call { }, $args
		2449
		2450	Executes the given code block with the given arguments in a seperate
		2451	process, returning the results. Everything must be serialisable with
		2452	Coro::Storable. May, of course, block. Note that the executed sub may
		2453	never block itself or use any form of Event handling.
		2454
		2455	=cut
		2456
		2457	sub fork_call(&@) {
		2458	my ($cb, @args) = @_;
		2459
		2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2461	# or die "socketpair: $!";
		2462	pipe my $fh1, my $fh2
		2463	or die "pipe: $!";
		2464
		2465	if (my $pid = fork) {
		2466	close $fh2;
		2467
		2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2469	$res = Coro::Storable::thaw $res;
		2470
		2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2472
		2473	die $$res unless "ARRAY" eq ref $res;
		2474
		2475	return wantarray ? @$res : $res->[-1];
		2476	} else {
		2477	reset_signals;
		2478	local $SIG{__WARN__};
		2479	local $SIG{__DIE__};
		2480	eval {
		2481	close $fh1;
		2482
		2483	my @res = eval { $cb->(@args) };
		2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2485	};
		2486
		2487	warn $@ if $@;
		2488	_exit 0;
		2489	}
		2490	}
		2491
		2492
2050		2493
2051	#############################################################################	2494	#############################################################################
2052	# the server's main()	2495	# the server's init and main functions
		2496
		2497	sub load_facedata($) {
		2498	my ($path) = @_;
		2499
		2500	warn "loading facedata from $path\n";
		2501
		2502	my $facedata;
		2503	0 < aio_load $path, $facedata
		2504	or die "$path: $!";
		2505
		2506	$facedata = Coro::Storable::thaw $facedata;
		2507
		2508	$facedata->{version} == 2
		2509	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2510
		2511	{
		2512	my $faces = $facedata->{faceinfo};
		2513
		2514	while (my ($face, $info) = each %$faces) {
		2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2519	Coro::cede;
		2520	}
		2521
		2522	while (my ($face, $info) = each %$faces) {
		2523	next unless $info->{smooth};
		2524	my $idx = cf::face::find $face
		2525	or next;
		2526	if (my $smooth = cf::face::find $info->{smooth}) {
		2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2528	} else {
		2529	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2530	}
		2531	Coro::cede;
		2532	}
		2533	}
		2534
		2535	{
		2536	my $anims = $facedata->{animinfo};
		2537
		2538	while (my ($anim, $info) = each %$anims) {
		2539	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2540	Coro::cede;
		2541	}
		2542
		2543	cf::anim::invalidate_all; # d'oh
		2544	}
		2545
		2546	1
		2547	}
		2548
		2549	sub reload_regions {
		2550	load_resource_file "$MAPDIR/regions"
		2551	or die "unable to load regions file\n";
		2552	}
		2553
		2554	sub reload_facedata {
		2555	load_facedata "$DATADIR/facedata"
		2556	or die "unable to load facedata\n";
		2557	}
		2558
		2559	sub reload_archetypes {
		2560	load_resource_file "$DATADIR/archetypes"
		2561	or die "unable to load archetypes\n";
		2562	}
		2563
		2564	sub reload_treasures {
		2565	load_resource_file "$DATADIR/treasures"
		2566	or die "unable to load treasurelists\n";
		2567	}
		2568
		2569	sub reload_resources {
		2570	warn "reloading resource files...\n";
		2571
		2572	reload_regions;
		2573	reload_facedata;
		2574	reload_archetypes;
		2575	reload_treasures;
		2576
		2577	warn "finished reloading resource files\n";
		2578	}
		2579
		2580	sub init {
		2581	reload_resources;
		2582	}
2053		2583
2054	sub cfg_load {	2584	sub cfg_load {
2055	open my $fh, "<:utf8", cf::confdir . "/config"	2585	open my $fh, "<:utf8", "$CONFDIR/config"
2056	or return;	2586	or return;
2057		2587
2058	local $/;	2588	local $/;
2059	*CFG = YAML::Syck::Load <$fh>;	2589	*CFG = YAML::Syck::Load <$fh>;
2060		2590
…		…
2063	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2593	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2064	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2594	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2065		2595
2066	if (exists $CFG{mlockall}) {	2596	if (exists $CFG{mlockall}) {
2067	eval {	2597	eval {
2068	$CFG{mlockall} ? &mlockall : &munlockall	2598	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2069	and die "WARNING: m(un)lockall failed: $!\n";	2599	and die "WARNING: m(un)lockall failed: $!\n";
2070	};	2600	};
2071	warn $@ if $@;	2601	warn $@ if $@;
2072	}	2602	}
2073	}	2603	}
2074		2604
2075	sub main {	2605	sub main {
2076	# we must not ever block the main coroutine	2606	# we must not ever block the main coroutine
2077	local $Coro::idle = sub {	2607	local $Coro::idle = sub {
2078	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2608	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2609	(async {
2079	async { Event::one_event };	2610	Event::one_event;
		2611	})->prio (Coro::PRIO_MAX);
2080	};	2612	};
2081		2613
2082	cfg_load;	2614	cfg_load;
2083	db_load;	2615	db_init;
2084	load_extensions;	2616	load_extensions;
		2617
		2618	$TICK_WATCHER->start;
2085	Event::loop;	2619	Event::loop;
2086	}	2620	}
2087		2621
2088	#############################################################################	2622	#############################################################################
2089	# initialisation	2623	# initialisation and cleanup
2090		2624
		2625	# install some emergency cleanup handlers
		2626	BEGIN {
		2627	for my $signal (qw(INT HUP TERM)) {
		2628	Event->signal (
		2629	reentrant => 0,
		2630	data => WF_AUTOCANCEL,
		2631	signal => $signal,
		2632	prio => 0,
		2633	cb => sub {
		2634	cf::cleanup "SIG$signal";
		2635	},
		2636	);
		2637	}
		2638	}
		2639
		2640	sub emergency_save() {
		2641	my $freeze_guard = cf::freeze_mainloop;
		2642
		2643	warn "enter emergency perl save\n";
		2644
		2645	cf::sync_job {
		2646	# use a peculiar iteration method to avoid tripping on perl
		2647	# refcount bugs in for. also avoids problems with players
		2648	# and maps saved/destroyed asynchronously.
		2649	warn "begin emergency player save\n";
		2650	for my $login (keys %cf::PLAYER) {
		2651	my $pl = $cf::PLAYER{$login} or next;
		2652	$pl->valid or next;
		2653	$pl->save;
		2654	}
		2655	warn "end emergency player save\n";
		2656
		2657	warn "begin emergency map save\n";
		2658	for my $path (keys %cf::MAP) {
		2659	my $map = $cf::MAP{$path} or next;
		2660	$map->valid or next;
		2661	$map->save;
		2662	}
		2663	warn "end emergency map save\n";
		2664
		2665	warn "begin emergency database checkpoint\n";
		2666	BDB::db_env_txn_checkpoint $DB_ENV;
		2667	warn "end emergency database checkpoint\n";
		2668	};
		2669
		2670	warn "leave emergency perl save\n";
		2671	}
		2672
		2673	sub post_cleanup {
		2674	my ($make_core) = @_;
		2675
		2676	warn Carp::longmess "post_cleanup backtrace"
		2677	if $make_core;
		2678	}
		2679
2091	sub reload() {	2680	sub do_reload_perl() {
2092	# can/must only be called in main	2681	# can/must only be called in main
2093	if ($Coro::current != $Coro::main) {	2682	if ($Coro::current != $Coro::main) {
2094	warn "can only reload from main coroutine\n";	2683	warn "can only reload from main coroutine";
2095	return;	2684	return;
2096	}	2685	}
2097		2686
2098	warn "reloading...";	2687	warn "reloading...";
2099		2688
2100	my $guard = freeze_mainloop;	2689	warn "entering sync_job";
		2690
		2691	cf::sync_job {
		2692	cf::write_runtime; # external watchdog should not bark
2101	cf::emergency_save;	2693	cf::emergency_save;
		2694	cf::write_runtime; # external watchdog should not bark
2102		2695
2103	eval {	2696	warn "syncing database to disk";
		2697	BDB::db_env_txn_checkpoint $DB_ENV;
		2698
2104	# if anything goes wrong in here, we should simply crash as we already saved	2699	# if anything goes wrong in here, we should simply crash as we already saved
2105		2700
2106	# cancel all watchers	2701	warn "cancelling all WF_AUTOCANCEL watchers";
2107	for (Event::all_watchers) {	2702	for (Event::all_watchers) {
2108	$_->cancel if $_->data & WF_AUTOCANCEL;	2703	$_->cancel if $_->data & WF_AUTOCANCEL;
2109	}	2704	}
2110		2705
		2706	warn "flushing outstanding aio requests";
		2707	for (;;) {
		2708	BDB::flush;
		2709	IO::AIO::flush;
		2710	Coro::cede;
		2711	last unless IO::AIO::nreqs || BDB::nreqs;
		2712	warn "iterate...";
		2713	}
		2714
		2715	++$RELOAD;
		2716
2111	# cancel all extension coros	2717	warn "cancelling all extension coros";
2112	$_->cancel for values %EXT_CORO;	2718	$_->cancel for values %EXT_CORO;
2113	%EXT_CORO = ();	2719	%EXT_CORO = ();
2114		2720
2115	# unload all extensions	2721	warn "removing commands";
2116	for (@exts) {	2722	%COMMAND = ();
		2723
		2724	warn "removing ext commands";
		2725	%EXTCMD = ();
		2726
		2727	warn "unloading/nuking all extensions";
		2728	for my $pkg (@EXTS) {
2117	warn "unloading <$_>";	2729	warn "... unloading $pkg";
2118	unload_extension $_;	2730
		2731	if (my $cb = $pkg->can ("unload")) {
		2732	eval {
		2733	$cb->($pkg);
		2734	1
		2735	} or warn "$pkg unloaded, but with errors: $@";
2119	}	2736	}
2120		2737
		2738	warn "... nuking $pkg";
		2739	Symbol::delete_package $pkg;
		2740	}
		2741
2121	# unload all modules loaded from $LIBDIR	2742	warn "unloading all perl modules loaded from $LIBDIR";
2122	while (my ($k, $v) = each %INC) {	2743	while (my ($k, $v) = each %INC) {
2123	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2124		2745
2125	warn "removing <$k>";	2746	warn "... unloading $k";
2126	delete $INC{$k};	2747	delete $INC{$k};
2127		2748
2128	$k =~ s/\.pm$//;	2749	$k =~ s/\.pm$//;
2129	$k =~ s/\//::/g;	2750	$k =~ s/\//::/g;
2130		2751
…		…
2133	}	2754	}
2134		2755
2135	Symbol::delete_package $k;	2756	Symbol::delete_package $k;
2136	}	2757	}
2137		2758
2138	# sync database to disk
2139	cf::db_sync;
2140	IO::AIO::flush;
2141
2142	# get rid of safe::, as good as possible	2759	warn "getting rid of safe::, as good as possible";
2143	Symbol::delete_package "safe::$_"	2760	Symbol::delete_package "safe::$_"
2144	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2145		2762
2146	# remove register_script_function callbacks
2147	# TODO
2148
2149	# unload cf.pm "a bit"	2763	warn "unloading cf.pm \"a bit\"";
2150	delete $INC{"cf.pm"};	2764	delete $INC{"cf.pm"};
		2765	delete $INC{"cf/pod.pm"};
2151		2766
2152	# don't, removes xs symbols, too,	2767	# don't, removes xs symbols, too,
2153	# and global variables created in xs	2768	# and global variables created in xs
2154	#Symbol::delete_package __PACKAGE__;	2769	#Symbol::delete_package __PACKAGE__;
2155		2770
2156	# reload cf.pm	2771	warn "unload completed, starting to reload now";
		2772
2157	warn "reloading cf.pm";	2773	warn "reloading cf.pm";
2158	require cf;	2774	require cf;
2159	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2160		2776
2161	# load config and database again	2777	warn "loading config and database again";
2162	cf::cfg_load;	2778	cf::cfg_load;
2163	cf::db_load;
2164		2779
2165	# load extensions
2166	warn "load extensions";	2780	warn "loading extensions";
2167	cf::load_extensions;	2781	cf::load_extensions;
2168		2782
2169	# reattach attachments to objects	2783	warn "reattaching attachments to objects/players";
2170	warn "reattach";	2784	_global_reattach; # objects, sockets
2171	_global_reattach;	2785	warn "reattaching attachments to maps";
2172	};	2786	reattach $_ for values %MAP;
		2787	warn "reattaching attachments to players";
		2788	reattach $_ for values %PLAYER;
2173		2789
2174	if ($@) {	2790	warn "leaving sync_job";
		2791
		2792	1
		2793	} or do {
2175	warn $@;	2794	warn $@;
2176	warn "error while reloading, exiting.";	2795	warn "error while reloading, exiting.";
2177	exit 1;	2796	exit 1;
2178	}	2797	};
2179		2798
2180	warn "reloaded successfully";	2799	warn "reloaded";
2181	};	2800	};
2182		2801
2183	#############################################################################	2802	our $RELOAD_WATCHER; # used only during reload
2184		2803
2185	unless ($LINK_MAP) {	2804	sub reload_perl() {
2186	$LINK_MAP = cf::map::new;	2805	# doing reload synchronously and two reloads happen back-to-back,
		2806	# coro crashes during coro_state_free->destroy here.
2187		2807
2188	$LINK_MAP->width (41);	2808	$RELOAD_WATCHER ||= Event->timer (
2189	$LINK_MAP->height (41);	2809	reentrant => 0,
2190	$LINK_MAP->alloc;
2191	$LINK_MAP->path ("{link}");
2192	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2193	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2194
2195	# dirty hack because... archetypes are not yet loaded
2196	Event->timer (
2197	after => 10,	2810	after => 0,
		2811	data => WF_AUTOCANCEL,
2198	cb => sub {	2812	cb => sub {
2199	$_[0]->w->cancel;	2813	do_reload_perl;
2200		2814	undef $RELOAD_WATCHER;
2201	# provide some exits "home"
2202	my $exit = cf::object::new "exit";
2203
2204	$exit->slaying ($EMERGENCY_POSITION->[0]);
2205	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2206	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2207
2208	$LINK_MAP->insert ($exit->clone, 19, 19);
2209	$LINK_MAP->insert ($exit->clone, 19, 20);
2210	$LINK_MAP->insert ($exit->clone, 19, 21);
2211	$LINK_MAP->insert ($exit->clone, 20, 19);
2212	$LINK_MAP->insert ($exit->clone, 20, 21);
2213	$LINK_MAP->insert ($exit->clone, 21, 19);
2214	$LINK_MAP->insert ($exit->clone, 21, 20);
2215	$LINK_MAP->insert ($exit->clone, 21, 21);
2216
2217	$exit->destroy;
2218	});	2815	},
2219		2816	);
2220	$LINK_MAP->{deny_save} = 1;
2221	$LINK_MAP->{deny_reset} = 1;
2222
2223	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2224	}	2817	}
2225
2226	register "<global>", __PACKAGE__;
2227		2818
2228	register_command "reload" => sub {	2819	register_command "reload" => sub {
2229	my ($who, $arg) = @_;	2820	my ($who, $arg) = @_;
2230		2821
2231	if ($who->flag (FLAG_WIZ)) {	2822	if ($who->flag (FLAG_WIZ)) {
2232	$who->message ("start of reload.");
2233	reload;
2234	$who->message ("end of reload.");	2823	$who->message ("reloading server.");
		2824	async { reload_perl };
2235	}	2825	}
2236	};	2826	};
2237		2827
2238	unshift @INC, $LIBDIR;	2828	unshift @INC, $LIBDIR;
		2829
		2830	my $bug_warning = 0;
		2831
		2832	our @WAIT_FOR_TICK;
		2833	our @WAIT_FOR_TICK_BEGIN;
		2834
		2835	sub wait_for_tick {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	sub wait_for_tick_begin {
		2845	return unless $TICK_WATCHER->is_active;
		2846	return if $Coro::current == $Coro::main;
		2847
		2848	my $signal = new Coro::Signal;
		2849	push @WAIT_FOR_TICK_BEGIN, $signal;
		2850	$signal->wait;
		2851	}
2239		2852
2240	$TICK_WATCHER = Event->timer (	2853	$TICK_WATCHER = Event->timer (
2241	reentrant => 0,	2854	reentrant => 0,
		2855	parked => 1,
2242	prio => 0,	2856	prio => 0,
2243	at => $NEXT_TICK || $TICK,	2857	at => $NEXT_TICK || $TICK,
2244	data => WF_AUTOCANCEL,	2858	data => WF_AUTOCANCEL,
2245	cb => sub {	2859	cb => sub {
		2860	if ($Coro::current != $Coro::main) {
		2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2862	unless ++$bug_warning > 10;
		2863	return;
		2864	}
		2865
		2866	$NOW = $tick_start = Event::time;
		2867
2246	cf::server_tick; # one server iteration	2868	cf::server_tick; # one server iteration
		2869
2247	$RUNTIME += $TICK;	2870	$RUNTIME += $TICK;
2248	$NEXT_TICK += $TICK;	2871	$NEXT_TICK += $TICK;
2249		2872
		2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2874	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2875	Coro::async_pool {
		2876	write_runtime
		2877	or warn "ERROR: unable to write runtime file: $!";
		2878	};
		2879	}
		2880
		2881	# my $AFTER = Event::time;
		2882	# warn $AFTER - $NOW;#d#
		2883
		2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2885	$sig->send;
		2886	}
		2887	while (my $sig = shift @WAIT_FOR_TICK) {
		2888	$sig->send;
		2889	}
		2890
		2891	$NOW = Event::time;
		2892
2250	# if we are delayed by four ticks or more, skip them all	2893	# if we are delayed by four ticks or more, skip them all
2251	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2252		2895
2253	$TICK_WATCHER->at ($NEXT_TICK);	2896	$TICK_WATCHER->at ($NEXT_TICK);
2254	$TICK_WATCHER->start;	2897	$TICK_WATCHER->start;
		2898
		2899	$LOAD = ($NOW - $tick_start) / $TICK;
		2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2901
		2902	_post_tick;
		2903
		2904
2255	},	2905	},
2256	);	2906	);
2257		2907
		2908	{
2258	IO::AIO::max_poll_time $TICK * 0.2;	2909	BDB::max_poll_time $TICK * 0.1;
2259		2910	$BDB_POLL_WATCHER = Event->io (
2260	Event->io (	2911	reentrant => 0,
2261	fd => IO::AIO::poll_fileno,	2912	fd => BDB::poll_fileno,
2262	poll => 'r',	2913	poll => 'r',
2263	prio => 5,	2914	prio => 0,
2264	data => WF_AUTOCANCEL,
2265	cb => \&IO::AIO::poll_cb,
2266	);
2267
2268	Event->timer (
2269	data => WF_AUTOCANCEL,	2915	data => WF_AUTOCANCEL,
2270	after => 0,	2916	cb => \&BDB::poll_cb,
2271	interval => 10,	2917	);
2272	cb => sub {	2918	BDB::min_parallel 8;
2273	(Coro::unblock_sub {	2919
2274	write_runtime	2920	BDB::set_sync_prepare {
2275	or warn "ERROR: unable to write runtime file: $!";	2921	my $status;
		2922	my $current = $Coro::current;
		2923	(
		2924	sub {
		2925	$status = $!;
		2926	$current->ready; undef $current;
		2927	},
		2928	sub {
		2929	Coro::schedule while defined $current;
		2930	$! = $status;
		2931	},
		2932	)
		2933	};
		2934
		2935	unless ($DB_ENV) {
		2936	$DB_ENV = BDB::db_env_create;
		2937
		2938	cf::sync_job {
		2939	eval {
		2940	BDB::db_env_open
		2941	$DB_ENV,
		2942	$BDBDIR,
		2943	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2944	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2945	0666;
		2946
		2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2948
		2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2950	$DB_ENV->set_lk_detect;
		2951	};
		2952
		2953	cf::cleanup "db_env_open(db): $@" if $@;
2276	})->();	2954	};
2277	},	2955	}
2278	);	2956	}
		2957
		2958	{
		2959	IO::AIO::min_parallel 8;
		2960
		2961	undef $Coro::AIO::WATCHER;
		2962	IO::AIO::max_poll_time $TICK * 0.1;
		2963	$AIO_POLL_WATCHER = Event->io (
		2964	reentrant => 0,
		2965	data => WF_AUTOCANCEL,
		2966	fd => IO::AIO::poll_fileno,
		2967	poll => 'r',
		2968	prio => 6,
		2969	cb => \&IO::AIO::poll_cb,
		2970	);
		2971	}
		2972
		2973	my $_log_backtrace;
		2974
		2975	sub _log_backtrace {
		2976	my ($msg, @addr) = @_;
		2977
		2978	$msg =~ s/\n//;
		2979
		2980	# limit the # of concurrent backtraces
		2981	if ($_log_backtrace < 2) {
		2982	++$_log_backtrace;
		2983	async {
		2984	my @bt = fork_call {
		2985	@addr = map { sprintf "%x", $_ } @addr;
		2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2988	or die "addr2line: $!";
		2989
		2990	my @funcs;
		2991	my @res = <$fh>;
		2992	chomp for @res;
		2993	while (@res) {
		2994	my ($func, $line) = splice @res, 0, 2, ();
		2995	push @funcs, "[$func] $line";
		2996	}
		2997
		2998	@funcs
		2999	};
		3000
		3001	LOG llevInfo, "[ABT] $msg\n";
		3002	LOG llevInfo, "[ABT] $_\n" for @bt;
		3003	--$_log_backtrace;
		3004	};
		3005	} else {
		3006	LOG llevInfo, "[ABT] $msg\n";
		3007	LOG llevInfo, "[ABT] [suppressed]\n";
		3008	}
		3009	}
		3010
		3011	# load additional modules
		3012	use cf::pod;
2279		3013
2280	END { cf::emergency_save }	3014	END { cf::emergency_save }
2281		3015
2282	1	3016	1
2283		3017

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