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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.130 by root, Thu Jan 4 00:08:08 2007 UTC vs.
Revision 1.256 by root, Sat Apr 21 16:56:32 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	125	every server tick.
93		126
94	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	234	=item cf::lock_wait $string
209		235
210	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
211		237
212	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
213		239
214	Wait until the given lock is available and then acquires it and returns	240	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
217	returned.	243	returned.
218		244
219	Lock names should begin with a unique identifier (for example, find_map	245	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
221		251
222	=cut	252	=cut
223		253
224	our %LOCK;	254	our %LOCK;
225		255
…		…
239	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
240	lock_wait $key;	270	lock_wait $key;
241		271
242	$LOCK{$key} = [];	272	$LOCK{$key} = [];
243		273
244	cf::guard {	274	Coro::guard {
245	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
247	}	277	}
248	}	278	}
249		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
250	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
251		297
252	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	298	Currently the same as Coro::async_pool, meaning you cannot use
253	error instead of exiting the server in case of a problem.	299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
254		301
255	=cut	302	=cut
256		303
257	sub async(&) {	304	BEGIN { *async = \&Coro::async_pool }
258	my ($cb) = @_;
259
260	Coro::async {
261	eval { $cb->() };
262	warn $@ if $@;
263	}
264	}
265		305
266	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
267		307
268	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
269	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
283	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
284	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
285		325
286	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
287	# (but this is cancel-safe)	327	# (but this is cancel-safe)
288	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
289		329
290	my $busy = 1;	330	my $busy = 1;
291	my @res;	331	my @res;
292		332
293	(Coro::async {	333	(async {
294	@res = eval { $job->() };	334	@res = eval { $job->() };
295	warn $@ if $@;	335	warn $@ if $@;
296	undef $busy;	336	undef $busy;
297	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
298		338
299	while ($busy) {	339	while ($busy) {
300	Coro::cede_notself;	340	Coro::cede or Event::one_event;
301	Event::one_event unless Coro::nready;
302	}	341	}
303		342
304	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
305	} else {	344	} else {
306	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
307		346
308	$job->()	347	$job->()
309	}	348	}
310	}	349	}
311		350
312	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
313		352
314	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
315	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
316		355
317	=cut	356	=cut
318		357
319	sub coro(&) {	358	sub async_ext(&) {
320	my $cb = shift;	359	my $cb = shift;
321		360
322	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
323		362
324	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
325	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
326	});	365	});
327	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
328		367
329	$coro	368	$coro
330	}	369	}
331		370
332	sub write_runtime {	371	sub write_runtime {
333	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
334		375
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
336	or return;	377	or return;
337		378
		379	my $value = $cf::RUNTIME + 90 + 10;
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	380	# 10 is the runtime save interval, for a monotonic clock
		381	# 60 allows for the watchdog to kill the server.
		382
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;	384	and return;
341		385
		386	# always fsync - this file is important
342	aio_fsync $fh	387	aio_fsync $fh
343	and return;	388	and return;
344		389
345	close $fh	390	close $fh
346	or return;	391	or return;
…		…
349	and return;	394	and return;
350		395
351	1	396	1
352	}	397	}
353		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
354	=back	410	=back
355		411
356	=cut	412	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	sub new {
363	my ($class, $path, $base) = @_;
364
365	$path = $path->as_string if ref $path;
366
367	my $self = bless { }, $class;
368
369	# {... are special paths that are not touched
370	# ?xxx/... are special absolute paths
371	# ?random/... random maps
372	# /! non-realised random map exit
373	# /... normal maps
374	# ~/... per-player maps without a specific player (DO NOT USE)
375	# ~user/... per-player map of a specific user
376
377	if ($path =~ /^{/) {
378	# fine as it is
379	} elsif ($path =~ s{^\?random/}{}) {
380	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
381	$self->{random} = cf::from_json $data;
382	} else {
383	if ($path =~ s{^~([^/]+)?}{}) {
384	$self->{user_rel} = 1;
385
386	if (defined $1) {
387	$self->{user} = $1;
388	} elsif ($base =~ m{^~([^/]+)/}) {
389	$self->{user} = $1;
390	} else {
391	warn "cannot resolve user-relative path without user <$path,$base>\n";
392	}
393	} elsif ($path =~ /^\//) {
394	# already absolute
395	} else {
396	$base =~ s{[^/]+/?$}{};
397	return $class->new ("$base/$path");
398	}
399
400	for ($path) {
401	redo if s{/\.?/}{/};
402	redo if s{/[^/]+/\.\./}{/};
403	}
404	}
405
406	$self->{path} = $path;
407
408	$self
409	}
410
411	# the name / primary key / in-game path
412	sub as_string {
413	my ($self) = @_;
414
415	$self->{user_rel} ? "~$self->{user}$self->{path}"
416	: $self->{random} ? "?random/$self->{path}"
417	: $self->{path}
418	}
419
420	# the displayed name, this is a one way mapping
421	sub visible_name {
422	my ($self) = @_;
423
424	# if (my $rmp = $self->{random}) {
425	# # todo: be more intelligent about this
426	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
427	# } else {
428	$self->as_string
429	# }
430	}
431
432	# escape the /'s in the path
433	sub _escaped_path {
434	# ∕ is U+2215
435	(my $path = $_[0]{path}) =~ s/\//∕/g;
436	$path
437	}
438
439	# the original (read-only) location
440	sub load_path {
441	my ($self) = @_;
442
443	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
444	}
445
446	# the temporary/swap location
447	sub save_path {
448	my ($self) = @_;
449
450	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
451	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
452	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
453	}
454
455	# the unique path, might be eq to save_path
456	sub uniq_path {
457	my ($self) = @_;
458
459	$self->{user_rel} || $self->{random}
460	? undef
461	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
462	}
463
464	# return random map parameters, or undef
465	sub random_map_params {
466	my ($self) = @_;
467
468	$self->{random}
469	}
470
471	# this is somewhat ugly, but style maps do need special treatment
472	sub is_style_map {
473	$_[0]{path} =~ m{^/styles/}
474	}
475
476	package cf;
477		413
478	#############################################################################	414	#############################################################################
479		415
480	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
481		417
…		…
607	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
608	our @CB_MAP = ();	544	our @CB_MAP = ();
609		545
610	my %attachment;	546	my %attachment;
611		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
612	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
613	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
614		556
615	use sort 'stable';	557	use sort 'stable';
616		558
…		…
787	# object support	729	# object support
788		730
789	sub reattach {	731	sub reattach {
790	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
791	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
792		736
793	my $registry = $obj->registry;	737	my $registry = $obj->registry;
794		738
795	@$registry = ();	739	@$registry = ();
796		740
…		…
843	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
844		788
845	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
846	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
847	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
848	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
849	close $fh;	793	close $fh;
850		794
851	if (@$objs) {	795	if (@$objs) {
852	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
853	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
854	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
855	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
856	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
857	close $fh;	801	close $fh;
858	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
859	}	803	}
860	} else {	804	} else {
861	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
928	=cut	872	=cut
929		873
930	sub register_extcmd {	874	sub register_extcmd {
931	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
932		876
933	my $caller = caller;
934	#warn "registering extcmd '$name' to '$caller'";
935
936	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
937	}	878	}
938		879
939	cf::player->attach (	880	cf::player->attach (
940	on_command => sub {	881	on_command => sub {
941	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
954		895
955	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
956		897
957	if (ref $msg) {	898	if (ref $msg) {
958	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
959	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
960	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
961	}	902	}
962	}	903	}
963	} else {	904	} else {
964	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
966		907
967	cf::override;	908	cf::override;
968	},	909	},
969	);	910	);
970		911
971	sub register {
972	my ($base, $pkg) = @_;
973
974	#TODO
975	}
976
977	sub load_extension {	912	sub load_extension {
978	my ($path) = @_;	913	my ($path) = @_;
979		914
980	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
981	my $base = $1;	916	my $base = $1;
982	my $pkg = $1;	917	my $pkg = $1;
983	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
984	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
985		920
986	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
987		922
988	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
989	or die "$path: $!";	924	or die "$path: $!";
990		925
991	my $source =	926	my $source =
992	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
993	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
994	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
995	. "\n};\n1";	930	. "\n};\n1";
996		931
997	eval $source	932	unless (eval $source) {
998	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
999	: "extension disabled.\n";	934	: "extension disabled.\n";
1000		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1001	push @exts, $pkg;	936	warn $@;
1002	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
1003		938	exit 1;
1004	# no strict 'refs';	939	}
1005	# @{"$pkg\::ISA"} = ext::;	940	die $@;
1006
1007	register $base, $pkg;
1008	}
1009
1010	sub unload_extension {
1011	my ($pkg) = @_;
1012
1013	warn "removing extension $pkg\n";
1014
1015	# remove hooks
1016	#TODO
1017	# for my $idx (0 .. $#PLUGIN_EVENT) {
1018	# delete $hook[$idx]{$pkg};
1019	# }	941	}
1020		942
1021	# remove commands	943	push @EXTS, $pkg;
1022	for my $name (keys %COMMAND) {
1023	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1024
1025	if (@cb) {
1026	$COMMAND{$name} = \@cb;
1027	} else {
1028	delete $COMMAND{$name};
1029	}
1030	}
1031
1032	# remove extcmds
1033	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1034	delete $EXTCMD{$name};
1035	}
1036
1037	if (my $cb = $pkg->can ("unload")) {
1038	eval {
1039	$cb->($pkg);
1040	1
1041	} or warn "$pkg unloaded, but with errors: $@";
1042	}
1043
1044	Symbol::delete_package $pkg;
1045	}	944	}
1046		945
1047	sub load_extensions {	946	sub load_extensions {
1048	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1049	next unless -r $ext;	948	next unless -r $ext;
…		…
1053	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1054	}	953	}
1055	}	954	}
1056		955
1057	#############################################################################	956	#############################################################################
1058	# load/save/clean perl data associated with a map
1059
1060	*cf::mapsupport::on_clean = sub {
1061	my ($map) = @_;
1062
1063	my $path = $map->tmpname;
1064	defined $path or return;
1065
1066	unlink "$path.pst";
1067	};
1068
1069	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1070
1071	#############################################################################
1072	# load/save perl data associated with player->ob objects
1073
1074	sub all_objects(@) {
1075	@_, map all_objects ($_->inv), @_
1076	}
1077
1078	# TODO: compatibility cruft, remove when no longer needed
1079	cf::player->attach (
1080	on_load => sub {
1081	my ($pl, $path) = @_;
1082
1083	for my $o (all_objects $pl->ob) {
1084	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1085	$o->set_ob_key_value ("_perl_data");
1086
1087	%$o = %{ Storable::thaw pack "H*", $value };
1088	}
1089	}
1090	},
1091	);
1092
1093	#############################################################################
1094		957
1095	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1096		959
1097	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1098		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1099	=head3 cf::player	968	=head3 cf::player
1100		969
1101	=over 4	970	=over 4
1102		971
1103	=item cf::player::exists $login	972	=item cf::player::find $login
1104		973
1105	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1106		975
1107	=cut	976	=cut
1108		977
1109	sub cf::player::exists($) {	978	sub playerdir($) {
1110	cf::player::find $_[0]	979	"$PLAYERDIR/"
1111	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	981	}
1113		982
		983	sub path($) {
		984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		985
		986	(playerdir $login) . "/playerdata"
		987	}
		988
		989	sub find_active($) {
		990	$cf::PLAYER{$_[0]}
		991	and $cf::PLAYER{$_[0]}->active
		992	and $cf::PLAYER{$_[0]}
		993	}
		994
		995	sub exists($) {
		996	my ($login) = @_;
		997
		998	$cf::PLAYER{$login}
		999	or cf::sync_job { !aio_stat path $login }
		1000	}
		1001
		1002	sub find($) {
		1003	return $cf::PLAYER{$_[0]} || do {
		1004	my $login = $_[0];
		1005
		1006	my $guard = cf::lock_acquire "user_find:$login";
		1007
		1008	$cf::PLAYER{$_[0]} || do {
		1009	# rename old playerfiles to new ones
		1010	#TODO: remove when no longer required
		1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1014	aio_unlink +(playerdir $login) . "/$login.pl";
		1015
		1016	my $pl = load_pl path $login
		1017	or return;
		1018	$cf::PLAYER{$login} = $pl
		1019	}
		1020	}
		1021	}
		1022
		1023	sub save($) {
		1024	my ($pl) = @_;
		1025
		1026	return if $pl->{deny_save};
		1027
		1028	my $path = path $pl;
		1029	my $guard = cf::lock_acquire "user_save:$path";
		1030
		1031	return if $pl->{deny_save};
		1032
		1033	aio_mkdir playerdir $pl, 0770;
		1034	$pl->{last_save} = $cf::RUNTIME;
		1035
		1036	$pl->save_pl ($path);
		1037	Coro::cede;
		1038	}
		1039
		1040	sub new($) {
		1041	my ($login) = @_;
		1042
		1043	my $self = create;
		1044
		1045	$self->ob->name ($login);
		1046	$self->{deny_save} = 1;
		1047
		1048	$cf::PLAYER{$login} = $self;
		1049
		1050	$self
		1051	}
		1052
		1053	=item $pl->quit_character
		1054
		1055	Nukes the player without looking back. If logged in, the connection will
		1056	be destroyed. May block for a long time.
		1057
		1058	=cut
		1059
		1060	sub quit_character {
		1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
		1064
		1065	$pl->{deny_save} = 1;
		1066	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1069	$pl->deactivate;
		1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1071	$pl->ns->destroy if $pl->ns;
		1072
		1073	my $path = playerdir $pl;
		1074	my $temp = "$path~$cf::RUNTIME~deleting~";
		1075	aio_rename $path, $temp;
		1076	delete $cf::PLAYER{$pl->ob->name};
		1077	$pl->destroy;
		1078
		1079	my $prefix = qr<^~\Q$name\E/>;
		1080
		1081	# nuke player maps
		1082	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1083
		1084	IO::AIO::aio_rmtree $temp;
		1085	}
		1086
		1087	=item $pl->kick
		1088
		1089	Kicks a player out of the game. This destroys the connection.
		1090
		1091	=cut
		1092
		1093	sub kick {
		1094	my ($pl, $kicker) = @_;
		1095
		1096	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1097	$pl->killer ("kicked");
		1098	$pl->ns->destroy;
		1099	}
		1100
		1101	=item cf::player::list_logins
		1102
		1103	Returns am arrayref of all valid playernames in the system, can take a
		1104	while and may block, so not sync_job-capable, ever.
		1105
		1106	=cut
		1107
		1108	sub list_logins {
		1109	my $dirs = aio_readdir $PLAYERDIR
		1110	or return [];
		1111
		1112	my @logins;
		1113
		1114	for my $login (@$dirs) {
		1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1116	aio_read $fh, 0, 512, my $buf, 0 or next;
		1117	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1118
		1119	utf8::decode $login;
		1120	push @logins, $login;
		1121	}
		1122
		1123	\@logins
		1124	}
		1125
		1126	=item $player->maps
		1127
		1128	Returns an arrayref of map paths that are private for this
		1129	player. May block.
		1130
		1131	=cut
		1132
		1133	sub maps($) {
		1134	my ($pl) = @_;
		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
		1138	my $files = aio_readdir playerdir $pl
		1139	or return;
		1140
		1141	my @paths;
		1142
		1143	for (@$files) {
		1144	utf8::decode $_;
		1145	next if /\.(?:pl|pst)$/;
		1146	next unless /^$PATH_SEP/o;
		1147
		1148	push @paths, cf::map::normalise "~$pl/$_";
		1149	}
		1150
		1151	\@paths
		1152	}
		1153
1114	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1115		1155
1116	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1117		1157
1118	=cut	1158	=cut
1119		1159
1120	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1121	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1122		1162
1123	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1124		1164
1125	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		1175	my ($self, $type, %msg) = @_;
		1176
		1177	$self->ns->ext_event ($type, %msg);
		1178	}
		1179
		1180	=head3 cf::region
		1181
		1182	=over 4
		1183
		1184	=cut
		1185
		1186	package cf::region;
		1187
		1188	=item cf::region::find_by_path $path
		1189
		1190	Tries to decuce the probable region for a map knowing only its path.
		1191
		1192	=cut
		1193
		1194	sub find_by_path($) {
		1195	my ($path) = @_;
		1196
		1197	my ($match, $specificity);
		1198
		1199	for my $region (list) {
		1200	if ($region->match && $path =~ $region->match) {
		1201	($match, $specificity) = ($region, $region->specificity)
		1202	if $region->specificity > $specificity;
		1203	}
		1204	}
		1205
		1206	$match
1126	}	1207	}
1127		1208
1128	=back	1209	=back
1129
1130		1210
1131	=head3 cf::map	1211	=head3 cf::map
1132		1212
1133	=over 4	1213	=over 4
1134		1214
…		…
1137	package cf::map;	1217	package cf::map;
1138		1218
1139	use Fcntl;	1219	use Fcntl;
1140	use Coro::AIO;	1220	use Coro::AIO;
1141		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1142	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1143	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1144		1228
1145	sub generate_random_map {	1229	sub generate_random_map {
1146	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1147
1148	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1149	cf::map::_create_random_map	1232	$self->_create_random_map (
1150	$path,
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1154	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1155	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1156	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1157	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1158	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1159	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1160	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1161	(cf::region::find $rmp->{region})	1243	(cf::region::find $rmp->{region}), $rmp->{custom}
		1244	)
		1245	}
		1246
		1247	=item cf::map->register ($regex, $prio)
		1248
		1249	Register a handler for the map path matching the given regex at the
		1250	givne priority (higher is better, built-in handlers have priority 0, the
		1251	default).
		1252
		1253	=cut
		1254
		1255	sub register {
		1256	my (undef, $regex, $prio) = @_;
		1257	my $pkg = caller;
		1258
		1259	no strict;
		1260	push @{"$pkg\::ISA"}, __PACKAGE__;
		1261
		1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1263	}
		1264
		1265	# also paths starting with '/'
		1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1267
		1268	sub thawer_merge {
		1269	my ($self, $merge) = @_;
		1270
		1271	# we have to keep some variables in memory intact
		1272	local $self->{path};
		1273	local $self->{load_path};
		1274	local $self->{deny_save};
		1275	local $self->{deny_reset};
		1276
		1277	$self->SUPER::thawer_merge ($merge);
		1278	}
		1279
		1280	sub normalise {
		1281	my ($path, $base) = @_;
		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
		1286
		1287	# map plan:
		1288	#
		1289	# /! non-realised random map exit (special hack!)
		1290	# {... are special paths that are not being touched
		1291	# ?xxx/... are special absolute paths
		1292	# ?random/... random maps
		1293	# /... normal maps
		1294	# ~user/... per-player map of a specific user
		1295
		1296	$path =~ s/$PATH_SEP/\//go;
		1297
		1298	# treat it as relative path if it starts with
		1299	# something that looks reasonable
		1300	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1301	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1302
		1303	$base =~ s{[^/]+/?$}{};
		1304	$path = "$base/$path";
		1305	}
		1306
		1307	for ($path) {
		1308	redo if s{//}{/};
		1309	redo if s{/\.?/}{/};
		1310	redo if s{/[^/]+/\.\./}{/};
		1311	}
		1312
		1313	$path
		1314	}
		1315
		1316	sub new_from_path {
		1317	my (undef, $path, $base) = @_;
		1318
		1319	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1320
		1321	$path = normalise $path, $base;
		1322
		1323	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1324	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1325	my $self = bless cf::map::new, $pkg;
		1326	$self->{path} = $path; $self->path ($path);
		1327	$self->init; # pass $1 etc.
		1328	return $self;
		1329	}
		1330	}
		1331
		1332	Carp::carp "unable to resolve path '$path' (base '$base').";
		1333	()
		1334	}
		1335
		1336	sub init {
		1337	my ($self) = @_;
		1338
		1339	$self
		1340	}
		1341
		1342	sub as_string {
		1343	my ($self) = @_;
		1344
		1345	"$self->{path}"
		1346	}
		1347
		1348	# the displayed name, this is a one way mapping
		1349	sub visible_name {
		1350	&as_string
		1351	}
		1352
		1353	# the original (read-only) location
		1354	sub load_path {
		1355	my ($self) = @_;
		1356
		1357	"$MAPDIR/$self->{path}.map"
		1358	}
		1359
		1360	# the temporary/swap location
		1361	sub save_path {
		1362	my ($self) = @_;
		1363
		1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1365	"$TMPDIR/$path.map"
		1366	}
		1367
		1368	# the unique path, undef == no special unique path
		1369	sub uniq_path {
		1370	my ($self) = @_;
		1371
		1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1373	"$UNIQUEDIR/$path"
1162	}	1374	}
1163		1375
1164	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1165	# all maps in C++...	1377	# all maps in C++...
1166	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1168		1380
1169	$_->change_map_light ($change)	1381	$_->change_map_light ($change)
1170	for grep $_->outdoor, values %cf::MAP;	1382	for grep $_->outdoor, values %cf::MAP;
1171	}	1383	}
1172		1384
		1385	sub unlink_save {
		1386	my ($self) = @_;
		1387
		1388	utf8::encode (my $save = $self->save_path);
		1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1390	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1391	}
		1392
1173	sub try_load_header($) {	1393	sub load_header_from($) {
1174	my ($path) = @_;	1394	my ($self, $path) = @_;
1175		1395
1176	utf8::encode $path;	1396	utf8::encode $path;
1177	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1178	or return;	1401	or return;
1179		1402
1180	my $map = cf::map::new	1403	$self->{load_path} = $path;
		1404
		1405	1
		1406	}
		1407
		1408	sub load_header_orig {
		1409	my ($self) = @_;
		1410
		1411	$self->load_header_from ($self->load_path)
		1412	}
		1413
		1414	sub load_header_temp {
		1415	my ($self) = @_;
		1416
		1417	$self->load_header_from ($self->save_path)
		1418	}
		1419
		1420	sub prepare_temp {
		1421	my ($self) = @_;
		1422
		1423	$self->last_access ((delete $self->{last_access})
		1424	|| $cf::RUNTIME); #d#
		1425	# safety
		1426	$self->{instantiate_time} = $cf::RUNTIME
		1427	if $self->{instantiate_time} > $cf::RUNTIME;
		1428	}
		1429
		1430	sub prepare_orig {
		1431	my ($self) = @_;
		1432
		1433	$self->{load_original} = 1;
		1434	$self->{instantiate_time} = $cf::RUNTIME;
		1435	$self->last_access ($cf::RUNTIME);
		1436	$self->instantiate;
		1437	}
		1438
		1439	sub load_header {
		1440	my ($self) = @_;
		1441
		1442	if ($self->load_header_temp) {
		1443	$self->prepare_temp;
		1444	} else {
		1445	$self->load_header_orig
1181	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1182		1449
1183	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1184	or return;	1451	unless $self->default_region;
1185		1452
1186	$map->{load_path} = $path;	1453	1
1187
1188	$map
1189	}	1454	}
1190		1455
1191	sub find_map;	1456	sub find;
1192	sub find_map {	1457	sub find {
1193	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1194		1459
1195	#warn "find_map<$path,$origin>\n";#d#
1196
1197	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1198	my $key = $path->as_string;
1199		1461
1200	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1201		1463
1202	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1203	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1204		1466	my $map = new_from_path cf::map $path
1205	# do it the slow way
1206	my $map = try_load_header $path->save_path;
1207
1208	if ($map) {
1209	# safety
1210	$map->{instantiate_time} = $cf::RUNTIME
1211	if $map->{instantiate_time} > $cf::RUNTIME;
1212	} else {
1213	if (my $rmp = $path->random_map_params) {
1214	$map = generate_random_map $key, $rmp;
1215	} else {
1216	$map = try_load_header $path->load_path;
1217	}
1218
1219	$map or return;	1467	or return;
1220		1468
1221	$map->{load_original} = 1;
1222	$map->{instantiate_time} = $cf::RUNTIME;
1223	$map->instantiate;
1224
1225	# per-player maps become, after loading, normal maps
1226	$map->per_player (0) if $path->{user_rel};
1227	}
1228
1229	$map->path ($key);
1230	$map->{path} = $path;
1231	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1232	$map->last_access ($cf::RUNTIME);
1233		1470
1234	if ($map->should_reset) {	1471	$map->load_header
		1472	or return;
		1473
		1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
1235	$map->reset;	1477	$map->reset;
1236	undef $guard;	1478	undef $guard;
1237	$map = find_map $path	1479	return find $path;
1238	or return;
1239	}	1480	}
1240		1481
1241	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1242	}	1483	}
1243	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1244		1488
1245	sub load {	1489	sub load {
1246	my ($self) = @_;	1490	my ($self) = @_;
1247		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1248	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1249	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1250		1498
1251	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1252		1500
1253	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1254		1502
1255	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1256	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1257	or return;	1509	or return;
1258		1510
1259	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1260	if delete $self->{load_original};	1512	if delete $self->{load_original};
1261		1513
1262	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1263	utf8::encode $uniq;	1515	utf8::encode $uniq;
1264	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1265	$self->clear_unique_items;	1517	$self->clear_unique_items;
1266	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1267	}	1519	}
1268	}	1520	}
1269		1521
		1522	Coro::cede;
1270	# now do the right thing for maps	1523	# now do the right thing for maps
1271	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1272
1273	if ($self->{path}->is_style_map) {
1274	$self->{deny_save} = 1;
1275	$self->{deny_reset} = 1;
1276	} else {
1277	$self->fix_auto_apply;
1278	$self->decay_objects;
1279	$self->update_buttons;
1280	$self->set_darkness_map;
1281	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1282	unless $self->difficulty;	1526	unless $self->difficulty;
		1527	Coro::cede;
		1528
		1529	unless ($self->{deny_activate}) {
		1530	$self->decay_objects;
		1531	$self->fix_auto_apply;
		1532	$self->update_buttons;
		1533	Coro::cede;
		1534	$self->set_darkness_map;
		1535	Coro::cede;
1283	$self->activate;	1536	$self->activate;
1284	}	1537	}
1285		1538
1286	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1287	}
1288		1540
1289	sub load_map_sync {	1541	undef $guard;
		1542	}
		1543
		1544	$self->post_load;
		1545	}
		1546
		1547	sub customise_for {
		1548	my ($self, $ob) = @_;
		1549
		1550	return find "~" . $ob->name . "/" . $self->{path}
		1551	if $self->per_player;
		1552
		1553	$self
		1554	}
		1555
		1556	# find and load all maps in the 3x3 area around a map
		1557	sub load_diag {
		1558	my ($map) = @_;
		1559
		1560	my @diag; # diagonal neighbours
		1561
		1562	for (0 .. 3) {
		1563	my $neigh = $map->tile_path ($_)
		1564	or next;
		1565	$neigh = find $neigh, $map
		1566	or next;
		1567	$neigh->load;
		1568
		1569	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1570	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1571	}
		1572
		1573	for (@diag) {
		1574	my $neigh = find @$_
		1575	or next;
		1576	$neigh->load;
		1577	}
		1578	}
		1579
		1580	sub find_sync {
1290	my ($path, $origin) = @_;	1581	my ($path, $origin) = @_;
1291		1582
1292	#warn "load_map_sync<$path, $origin>\n";#d#	1583	cf::sync_job { find $path, $origin }
		1584	}
1293		1585
1294	cf::sync_job {	1586	sub do_load_sync {
1295	my $map = cf::map::find_map $path, $origin	1587	my ($map) = @_;
1296	or return;	1588
		1589	cf::sync_job { $map->load };
		1590	}
		1591
		1592	our %MAP_PREFETCH;
		1593	our $MAP_PREFETCHER = undef;
		1594
		1595	sub find_async {
		1596	my ($path, $origin) = @_;
		1597
		1598	$path = normalise $path, $origin && $origin->{path};
		1599
		1600	if (my $map = $cf::MAP{$path}) {
		1601	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1602	}
		1603
		1604	undef $MAP_PREFETCH{$path};
		1605	$MAP_PREFETCHER ||= cf::async {
		1606	while (%MAP_PREFETCH) {
		1607	for my $path (keys %MAP_PREFETCH) {
		1608	my $map = find $path
		1609	or next;
1297	$map->load;	1610	$map->load;
1298	$map	1611
		1612	delete $MAP_PREFETCH{$path};
		1613	}
		1614	}
		1615	undef $MAP_PREFETCHER;
1299	}	1616	};
		1617	$MAP_PREFETCHER->prio (6);
		1618
		1619	()
1300	}	1620	}
1301		1621
1302	sub save {	1622	sub save {
1303	my ($self) = @_;	1623	my ($self) = @_;
1304		1624
		1625	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1626
1305	$self->{last_save} = $cf::RUNTIME;	1627	$self->{last_save} = $cf::RUNTIME;
1306		1628
1307	return unless $self->dirty;	1629	return unless $self->dirty;
1308		1630
1309	my $save = $self->{path}->save_path; utf8::encode $save;	1631	my $save = $self->save_path; utf8::encode $save;
1310	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1632	my $uniq = $self->uniq_path; utf8::encode $uniq;
1311		1633
1312	$self->{load_path} = $save;	1634	$self->{load_path} = $save;
1313		1635
1314	return if $self->{deny_save};	1636	return if $self->{deny_save};
1315		1637
		1638	local $self->{last_access} = $self->last_access;#d#
		1639
		1640	cf::async {
		1641	$_->contr->save for $self->players;
		1642	};
		1643
1316	if ($uniq) {	1644	if ($uniq) {
1317	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1645	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1318	$self->save_objects ($uniq, cf::IO_UNIQUES);	1646	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1319	} else {	1647	} else {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1648	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1321	}	1649	}
1322	}	1650	}
1323		1651
1324	sub swap_out {	1652	sub swap_out {
1325	my ($self) = @_;	1653	my ($self) = @_;
1326		1654
1327	# save first because save cedes	1655	# save first because save cedes
1328	$self->save;	1656	$self->save;
		1657
		1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1329		1659
1330	return if $self->players;	1660	return if $self->players;
1331	return if $self->in_memory != cf::MAP_IN_MEMORY;	1661	return if $self->in_memory != cf::MAP_IN_MEMORY;
1332	return if $self->{deny_save};	1662	return if $self->{deny_save};
1333		1663
…		…
1337		1667
1338	sub reset_at {	1668	sub reset_at {
1339	my ($self) = @_;	1669	my ($self) = @_;
1340		1670
1341	# TODO: safety, remove and allow resettable per-player maps	1671	# TODO: safety, remove and allow resettable per-player maps
1342	return 1e99 if $self->{path}{user_rel};	1672	return 1e99 if $self->isa ("ext::map_per_player");#d#
1343	return 1e99 if $self->{deny_reset};	1673	return 1e99 if $self->{deny_reset};
1344		1674
1345	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1675	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1346	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1676	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1347		1677
…		…
1352	my ($self) = @_;	1682	my ($self) = @_;
1353		1683
1354	$self->reset_at <= $cf::RUNTIME	1684	$self->reset_at <= $cf::RUNTIME
1355	}	1685	}
1356		1686
1357	sub unlink_save {
1358	my ($self) = @_;
1359
1360	utf8::encode (my $save = $self->{path}->save_path);
1361	aioreq_pri 3; IO::AIO::aio_unlink $save;
1362	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1363	}
1364
1365	sub rename {
1366	my ($self, $new_path) = @_;
1367
1368	$self->unlink_save;
1369
1370	delete $cf::MAP{$self->path};
1371	$self->{path} = new cf::path $new_path;
1372	$self->path ($self->{path}->as_string);
1373	$cf::MAP{$self->path} = $self;
1374
1375	$self->save;
1376	}
1377
1378	sub reset {	1687	sub reset {
1379	my ($self) = @_;	1688	my ($self) = @_;
1380		1689
		1690	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1691
1381	return if $self->players;	1692	return if $self->players;
1382	return if $self->{path}{user_rel};#d#	1693	return if $self->isa ("ext::map_per_player");#d#
1383		1694
1384	warn "resetting map ", $self->path;#d#	1695	warn "resetting map ", $self->path;#d#
1385		1696
		1697	$self->in_memory (cf::MAP_SWAPPED);
		1698
		1699	# need to save uniques path
		1700	unless ($self->{deny_save}) {
		1701	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1702
		1703	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1704	if $uniq;
		1705	}
		1706
1386	delete $cf::MAP{$self->path};	1707	delete $cf::MAP{$self->path};
		1708
		1709	$self->clear;
1387		1710
1388	$_->clear_links_to ($self) for values %cf::MAP;	1711	$_->clear_links_to ($self) for values %cf::MAP;
1389		1712
1390	$self->unlink_save;	1713	$self->unlink_save;
1391	$self->destroy;	1714	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	1717	my $nuke_counter = "aaaa";
1395		1718
1396	sub nuke {	1719	sub nuke {
1397	my ($self) = @_;	1720	my ($self) = @_;
1398		1721
		1722	delete $cf::MAP{$self->path};
		1723
		1724	$self->unlink_save;
		1725
		1726	bless $self, "cf::map";
		1727	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	1728	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	1729	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	1730	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1731
		1732	$cf::MAP{$self->path} = $self;
		1733
1402	$self->reset; # polite request, might not happen	1734	$self->reset; # polite request, might not happen
1403	}	1735	}
1404		1736
1405	sub customise_for {	1737	=item cf::map::unique_maps
1406	my ($map, $ob) = @_;
1407		1738
1408	if ($map->per_player) {	1739	Returns an arrayref of paths of all shared maps that have
1409	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1740	instantiated unique items. May block.
1410	}
1411		1741
1412	$map	1742	=cut
1413	}
1414		1743
1415	sub emergency_save {	1744	sub unique_maps() {
1416	local $cf::FREEZE = 1;	1745	my $files = aio_readdir $UNIQUEDIR
		1746	or return;
1417		1747
1418	warn "enter emergency map save\n";	1748	my @paths;
1419		1749
1420	cf::sync_job {	1750	for (@$files) {
1421	warn "begin emergency map save\n";	1751	utf8::decode $_;
1422	$_->save for values %cf::MAP;	1752	next if /\.pst$/;
		1753	next unless /^$PATH_SEP/o;
		1754
		1755	push @paths, cf::map::normalise $_;
1423	};	1756	}
1424		1757
1425	warn "end emergency map save\n";	1758	\@paths
1426	}	1759	}
1427		1760
1428	package cf;	1761	package cf;
1429		1762
1430	=back	1763	=back
1431		1764
		1765	=head3 cf::object
		1766
		1767	=cut
		1768
		1769	package cf::object;
		1770
		1771	=over 4
		1772
		1773	=item $ob->inv_recursive
		1774
		1775	Returns the inventory of the object _and_ their inventories, recursively.
		1776
		1777	=cut
		1778
		1779	sub inv_recursive_;
		1780	sub inv_recursive_ {
		1781	map { $_, inv_recursive_ $_->inv } @_
		1782	}
		1783
		1784	sub inv_recursive {
		1785	inv_recursive_ inv $_[0]
		1786	}
		1787
		1788	package cf;
		1789
		1790	=back
1432		1791
1433	=head3 cf::object::player	1792	=head3 cf::object::player
1434		1793
1435	=over 4	1794	=over 4
1436		1795
…		…
1476		1835
1477	=item $player_object->enter_link	1836	=item $player_object->enter_link
1478		1837
1479	Freezes the player and moves him/her to a special map (C<{link}>).	1838	Freezes the player and moves him/her to a special map (C<{link}>).
1480		1839
1481	The player should be reaosnably safe there for short amounts of time. You	1840	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	1841	I<MUST> call C<leave_link> as soon as possible, though.
1483		1842
		1843	Will never block.
		1844
1484	=item $player_object->leave_link ($map, $x, $y)	1845	=item $player_object->leave_link ($map, $x, $y)
1485		1846
1486	Moves the player out of the specila link map onto the given map. If the	1847	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	1848	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	1849	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	1850	fails, to the emergency map position.
1490		1851
1491	Might block.	1852	Might block.
1492		1853
1493	=cut	1854	=cut
		1855
		1856	sub link_map {
		1857	unless ($LINK_MAP) {
		1858	$LINK_MAP = cf::map::find "{link}"
		1859	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1860	$LINK_MAP->load;
		1861	}
		1862
		1863	$LINK_MAP
		1864	}
1494		1865
1495	sub cf::object::player::enter_link {	1866	sub cf::object::player::enter_link {
1496	my ($self) = @_;	1867	my ($self) = @_;
1497		1868
1498	$self->deactivate_recursive;	1869	$self->deactivate_recursive;
1499		1870
1500	return if $self->map == $LINK_MAP;	1871	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		1872
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1873	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	1874	if $self->map;
1504		1875
1505	$self->enter_map ($LINK_MAP, 20, 20);	1876	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	1877	}
1507		1878
1508	sub cf::object::player::leave_link {	1879	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	1880	my ($self, $map, $x, $y) = @_;
1510		1881
1511	my $link_pos = delete $self->{_link_pos};	1882	my $link_pos = delete $self->{_link_pos};
1512		1883
1513	unless ($map) {	1884	unless ($map) {
1514	# restore original map position	1885	# restore original map position
1515	($map, $x, $y) = @{ $link_pos || [] };	1886	($map, $x, $y) = @{ $link_pos || [] };
1516	$map = cf::map::find_map $map;	1887	$map = cf::map::find $map;
1517		1888
1518	unless ($map) {	1889	unless ($map) {
1519	($map, $x, $y) = @$EMERGENCY_POSITION;	1890	($map, $x, $y) = @$EMERGENCY_POSITION;
1520	$map = cf::map::find_map $map	1891	$map = cf::map::find $map
1521	or die "FATAL: cannot load emergency map\n";	1892	or die "FATAL: cannot load emergency map\n";
1522	}	1893	}
1523	}	1894	}
1524		1895
1525	($x, $y) = (-1, -1)	1896	($x, $y) = (-1, -1)
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	1899	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	1900	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	1901	if $x <=0 && $y <= 0;
1531		1902
1532	$map->load;	1903	$map->load;
		1904	$map->load_diag;
1533		1905
		1906	return unless $self->contr->active;
1534	$self->activate_recursive;	1907	$self->activate_recursive;
		1908
		1909	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	1910	$self->enter_map ($map, $x, $y);
1536	}	1911	}
1537		1912
1538	cf::player->attach (	1913	cf::player->attach (
1539	on_logout => sub {	1914	on_logout => sub {
…		…
1551		1926
1552	# try to abort aborted map switching on player login :)	1927	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes	1928	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {	1929	if ($pl->ob->{_link_pos}) {
1555	$pl->ob->enter_link;	1930	$pl->ob->enter_link;
1556	cf::async {	1931	(async {
		1932	$pl->ob->reply (undef,
		1933	"There was an internal problem at your last logout, "
		1934	. "the server will try to bring you to your intended destination in a second.",
		1935	cf::NDI_RED);
1557	# we need this sleep as the login has a concurrent enter_exit running	1936	# we need this sleep as the login has a concurrent enter_exit running
1558	# and this sleep increases chances of the player not ending up in scorn	1937	# and this sleep increases chances of the player not ending up in scorn
1559	Coro::Timer::sleep 1;	1938	Coro::Timer::sleep 1;
1560	$pl->ob->leave_link;	1939	$pl->ob->leave_link;
1561	};	1940	})->prio (2);
1562	}	1941	}
1563	},	1942	},
1564	);	1943	);
1565		1944
1566	=item $player_object->goto_map ($path, $x, $y)	1945	=item $player_object->goto ($path, $x, $y)
1567		1946
1568	=cut	1947	=cut
1569		1948
1570	sub cf::object::player::goto_map {	1949	sub cf::object::player::goto {
1571	my ($self, $path, $x, $y) = @_;	1950	my ($self, $path, $x, $y) = @_;
1572		1951
1573	$self->enter_link;	1952	$self->enter_link;
1574		1953
1575	(cf::async {	1954	(async {
1576	$path = new cf::path $path;	1955	my $map = eval {
1577
1578	my $map = cf::map::find_map $path->as_string;	1956	my $map = cf::map::find $path;
1579	$map = $map->customise_for ($self) if $map;	1957	$map = $map->customise_for ($self) if $map;
1580		1958	$map
1581	# warn "entering ", $map->path, " at ($x, $y)\n"	1959	} or
1582	# if $map;
1583
1584	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1960	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1585		1961
1586	$self->leave_link ($map, $x, $y);	1962	$self->leave_link ($map, $x, $y);
1587	})->prio (1);	1963	})->prio (1);
1588	}	1964	}
1589		1965
…		…
1593		1969
1594	sub parse_random_map_params {	1970	sub parse_random_map_params {
1595	my ($spec) = @_;	1971	my ($spec) = @_;
1596		1972
1597	my $rmp = { # defaults	1973	my $rmp = { # defaults
1598	xsize => 10,	1974	xsize => (cf::rndm 15, 40),
1599	ysize => 10,	1975	ysize => (cf::rndm 15, 40),
		1976	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1977	#layout => string,
1600	};	1978	};
1601		1979
1602	for (split /\n/, $spec) {	1980	for (split /\n/, $spec) {
1603	my ($k, $v) = split /\s+/, $_, 2;	1981	my ($k, $v) = split /\s+/, $_, 2;
1604		1982
…		…
1608	$rmp	1986	$rmp
1609	}	1987	}
1610		1988
1611	sub prepare_random_map {	1989	sub prepare_random_map {
1612	my ($exit) = @_;	1990	my ($exit) = @_;
		1991
		1992	my $guard = cf::lock_acquire "exit_prepare:$exit";
1613		1993
1614	# all this does is basically replace the /! path by	1994	# all this does is basically replace the /! path by
1615	# a new random map path (?random/...) with a seed	1995	# a new random map path (?random/...) with a seed
1616	# that depends on the exit object	1996	# that depends on the exit object
1617		1997
1618	my $rmp = parse_random_map_params $exit->msg;	1998	my $rmp = parse_random_map_params $exit->msg;
1619		1999
1620	if ($exit->map) {	2000	if ($exit->map) {
1621	$rmp->{region} = $exit->map->region_name;	2001	$rmp->{region} = $exit->region->name;
1622	$rmp->{origin_map} = $exit->map->path;	2002	$rmp->{origin_map} = $exit->map->path;
1623	$rmp->{origin_x} = $exit->x;	2003	$rmp->{origin_x} = $exit->x;
1624	$rmp->{origin_y} = $exit->y;	2004	$rmp->{origin_y} = $exit->y;
1625	}	2005	}
1626		2006
1627	$rmp->{random_seed} ||= $exit->random_seed;	2007	$rmp->{random_seed} ||= $exit->random_seed;
1628		2008
1629	my $data = cf::to_json $rmp;	2009	my $data = cf::to_json $rmp;
1630	my $md5 = Digest::MD5::md5_hex $data;	2010	my $md5 = Digest::MD5::md5_hex $data;
		2011	my $meta = "$RANDOMDIR/$md5.meta";
1631		2012
1632	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2013	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1633	aio_write $fh, 0, (length $data), $data, 0;	2014	aio_write $fh, 0, (length $data), $data, 0;
		2015	undef $fh;
		2016	aio_rename "$meta~", $meta;
1634		2017
1635	$exit->slaying ("?random/$md5");	2018	$exit->slaying ("?random/$md5");
1636	$exit->msg (undef);	2019	$exit->msg (undef);
1637	}	2020	}
1638	}	2021	}
…		…
1640	sub cf::object::player::enter_exit {	2023	sub cf::object::player::enter_exit {
1641	my ($self, $exit) = @_;	2024	my ($self, $exit) = @_;
1642		2025
1643	return unless $self->type == cf::PLAYER;	2026	return unless $self->type == cf::PLAYER;
1644		2027
		2028	if ($exit->slaying eq "/!") {
		2029	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2030	# the problem is that $exit might not survive long enough
		2031	# so it needs to be done right now, right here
		2032	cf::sync_job { prepare_random_map $exit };
		2033	}
		2034
		2035	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2036	my $hp = $exit->stats->hp;
		2037	my $sp = $exit->stats->sp;
		2038
1645	$self->enter_link;	2039	$self->enter_link;
1646		2040
1647	(cf::async {	2041	(async {
		2042	$self->deactivate_recursive; # just to be sure
1648	unless (eval {	2043	unless (eval {
1649	prepare_random_map $exit	2044	$self->goto ($slaying, $hp, $sp);
1650	if $exit->slaying eq "/!";
1651
1652	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1653	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1654		2045
1655	1;	2046	1;
1656	}) {	2047	}) {
1657	$self->message ("Something went wrong deep within the crossfire server. "	2048	$self->message ("Something went wrong deep within the crossfire server. "
1658	. "I'll try to bring you back to the map you were before. "	2049	. "I'll try to bring you back to the map you were before. "
1659	. "Please report this to the dungeon master",	2050	. "Please report this to the dungeon master!",
1660	cf::NDI_UNIQUE | cf::NDI_RED);	2051	cf::NDI_UNIQUE | cf::NDI_RED);
1661		2052
1662	warn "ERROR in enter_exit: $@";	2053	warn "ERROR in enter_exit: $@";
1663	$self->leave_link;	2054	$self->leave_link;
1664	}	2055	}
1665	})->prio (1);	2056	})->prio (1);
…		…
1678		2069
1679	sub cf::client::send_drawinfo {	2070	sub cf::client::send_drawinfo {
1680	my ($self, $text, $flags) = @_;	2071	my ($self, $text, $flags) = @_;
1681		2072
1682	utf8::encode $text;	2073	utf8::encode $text;
1683	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2074	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1684	}	2075	}
1685		2076
		2077	=item $client->ext_event ($type, %msg)
		2078
		2079	Sends an exti event to the client.
		2080
		2081	=cut
		2082
		2083	sub cf::client::ext_event($$%) {
		2084	my ($self, $type, %msg) = @_;
		2085
		2086	$msg{msgtype} = "event_$type";
		2087	$self->send_packet ("ext " . cf::to_json \%msg);
		2088	}
1686		2089
1687	=item $success = $client->query ($flags, "text", \&cb)	2090	=item $success = $client->query ($flags, "text", \&cb)
1688		2091
1689	Queues a query to the client, calling the given callback with	2092	Queues a query to the client, calling the given callback with
1690	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2093	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1719	# get handled first	2122	# get handled first
1720	my $queue = delete $ns->{query_queue}	2123	my $queue = delete $ns->{query_queue}
1721	or return; # be conservative, not sure how that can happen, but we saw a crash here	2124	or return; # be conservative, not sure how that can happen, but we saw a crash here
1722		2125
1723	(shift @$queue)->[1]->($msg);	2126	(shift @$queue)->[1]->($msg);
		2127	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1724		2128
1725	push @{ $ns->{query_queue} }, @$queue;	2129	push @{ $ns->{query_queue} }, @$queue;
1726		2130
1727	if (@{ $ns->{query_queue} } == @$queue) {	2131	if (@{ $ns->{query_queue} } == @$queue) {
1728	if (@$queue) {	2132	if (@$queue) {
…		…
1732	}	2136	}
1733	}	2137	}
1734	},	2138	},
1735	);	2139	);
1736		2140
1737	=item $client->coro (\&cb)	2141	=item $client->async (\&cb)
1738		2142
1739	Create a new coroutine, running the specified callback. The coroutine will	2143	Create a new coroutine, running the specified callback. The coroutine will
1740	be automatically cancelled when the client gets destroyed (e.g. on logout,	2144	be automatically cancelled when the client gets destroyed (e.g. on logout,
1741	or loss of connection).	2145	or loss of connection).
1742		2146
1743	=cut	2147	=cut
1744		2148
1745	sub cf::client::coro {	2149	sub cf::client::async {
1746	my ($self, $cb) = @_;	2150	my ($self, $cb) = @_;
1747		2151
1748	my $coro = &cf::async ($cb);	2152	my $coro = &Coro::async ($cb);
1749		2153
1750	$coro->on_destroy (sub {	2154	$coro->on_destroy (sub {
1751	delete $self->{_coro}{$coro+0};	2155	delete $self->{_coro}{$coro+0};
1752	});	2156	});
1753		2157
…		…
1786		2190
1787	# here we export the classes and methods available to script code	2191	# here we export the classes and methods available to script code
1788		2192
1789	=pod	2193	=pod
1790		2194
1791	The following fucntions and emthods are available within a safe environment:	2195	The following functions and methods are available within a safe environment:
1792		2196
1793	cf::object contr pay_amount pay_player map	2197	cf::object contr pay_amount pay_player map
1794	cf::object::player player	2198	cf::object::player player
1795	cf::player peaceful	2199	cf::player peaceful
1796	cf::map trigger	2200	cf::map trigger
…		…
1881	#############################################################################	2285	#############################################################################
1882		2286
1883	=head2 EXTENSION DATABASE SUPPORT	2287	=head2 EXTENSION DATABASE SUPPORT
1884		2288
1885	Crossfire maintains a very simple database for extension use. It can	2289	Crossfire maintains a very simple database for extension use. It can
1886	currently store anything that can be serialised using Storable, which	2290	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1887	excludes objects.	2291	convert to/from binary).
1888		2292
1889	The parameter C<$family> should best start with the name of the extension	2293	The parameter C<$family> should best start with the name of the extension
1890	using it, it should be unique.	2294	using it, it should be unique.
1891		2295
1892	=over 4	2296	=over 4
1893		2297
1894	=item $hashref = cf::db_get $family
1895
1896	Return a hashref for use by the extension C<$family>, which can be
1897	modified. After modifications, you have to call C<cf::db_dirty> or
1898	C<cf::db_sync>.
1899
1900	=item $value = cf::db_get $family => $key	2298	=item $value = cf::db_get $family => $key
1901		2299
1902	Returns a single value from the database	2300	Returns a single value from the database.
1903
1904	=item cf::db_put $family => $hashref
1905
1906	Stores the given family hashref into the database. Updates are delayed, if
1907	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1908		2301
1909	=item cf::db_put $family => $key => $value	2302	=item cf::db_put $family => $key => $value
1910		2303
1911	Stores the given C<$value> in the family hash. Updates are delayed, if you	2304	Stores the given C<$value> in the family.
1912	want the data to be synced to disk immediately, use C<cf::db_sync>.
1913
1914	=item cf::db_dirty
1915
1916	Marks the database as dirty, to be updated at a later time.
1917
1918	=item cf::db_sync
1919
1920	Immediately write the database to disk I<if it is dirty>.
1921		2305
1922	=cut	2306	=cut
1923		2307
1924	our $DB;	2308	our $DB;
1925		2309
1926	{	2310	sub db_init {
1927	my $path = cf::localdir . "/database.pst";	2311	unless ($DB) {
		2312	$DB = BDB::db_create $DB_ENV;
1928		2313
1929	sub db_load() {	2314	cf::sync_job {
1930	$DB = stat $path ? Storable::retrieve $path : { };	2315	eval {
1931	}	2316	$DB->set_flags (BDB::CHKSUM);
1932		2317
1933	my $pid;	2318	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1934		2319	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1935	sub db_save() {	2320	cf::cleanup "db_open(db): $!" if $!;
1936	waitpid $pid, 0 if $pid;	2321	};
1937	if (0 == ($pid = fork)) {	2322	cf::cleanup "db_open(db): $@" if $@;
1938	$DB->{_meta}{version} = 1;
1939	Storable::nstore $DB, "$path~";
1940	rename "$path~", $path;
1941	cf::_exit 0 if defined $pid;
1942	}	2323	};
1943	}
1944
1945	my $dirty;
1946
1947	sub db_sync() {
1948	db_save if $dirty;
1949	undef $dirty;
1950	}
1951
1952	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1953	db_sync;
1954	});	2324	}
		2325	}
1955		2326
1956	sub db_dirty() {
1957	$dirty = 1;
1958	$idle->start;
1959	}
1960
1961	sub db_get($;$) {	2327	sub db_get($$) {
1962	@_ >= 2	2328	my $key = "$_[0]/$_[1]";
1963	? $DB->{$_[0]}{$_[1]}
1964	: ($DB->{$_[0]} ||= { })
1965	}
1966		2329
		2330	cf::sync_job {
		2331	BDB::db_get $DB, undef, $key, my $data;
		2332
		2333	$! ? ()
		2334	: $data
		2335	}
		2336	}
		2337
1967	sub db_put($$;$) {	2338	sub db_put($$$) {
1968	if (@_ >= 3) {	2339	BDB::dbreq_pri 4;
1969	$DB->{$_[0]}{$_[1]} = $_[2];	2340	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1970	} else {	2341	}
1971	$DB->{$_[0]} = $_[1];
1972	}
1973	db_dirty;
1974	}
1975		2342
1976	cf::global->attach (	2343	=item cf::cache $id => [$paths...], $processversion => $process
1977	prio => 10000,	2344
1978	on_cleanup => sub {	2345	Generic caching function that returns the value of the resource $id,
1979	db_sync;	2346	caching and regenerating as required.
		2347
		2348	This function can block.
		2349
		2350	=cut
		2351
		2352	sub cache {
		2353	my ($id, $src, $processversion, $process) = @_;
		2354
		2355	my $meta =
		2356	join "\x00",
		2357	$processversion,
		2358	map {
		2359	aio_stat $_
		2360	and Carp::croak "$_: $!";
		2361
		2362	($_, (stat _)[7,9])
		2363	} @$src;
		2364
		2365	my $dbmeta = db_get cache => "$id/meta";
		2366	if ($dbmeta ne $meta) {
		2367	# changed, we may need to process
		2368
		2369	my @data;
		2370	my $md5;
		2371
		2372	for (0 .. $#$src) {
		2373	0 <= aio_load $src->[$_], $data[$_]
		2374	or Carp::croak "$src->[$_]: $!";
1980	},	2375	}
1981	);	2376
		2377	# if processing is expensive, check
		2378	# checksum first
		2379	if (1) {
		2380	$md5 =
		2381	join "\x00",
		2382	$processversion,
		2383	map {
		2384	Coro::cede;
		2385	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2386	} 0.. $#$src;
		2387
		2388
		2389	my $dbmd5 = db_get cache => "$id/md5";
		2390	if ($dbmd5 eq $md5) {
		2391	db_put cache => "$id/meta", $meta;
		2392
		2393	return db_get cache => "$id/data";
		2394	}
		2395	}
		2396
		2397	my $t1 = Time::HiRes::time;
		2398	my $data = $process->(\@data);
		2399	my $t2 = Time::HiRes::time;
		2400
		2401	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2402
		2403	db_put cache => "$id/data", $data;
		2404	db_put cache => "$id/md5" , $md5;
		2405	db_put cache => "$id/meta", $meta;
		2406
		2407	return $data;
		2408	}
		2409
		2410	db_get cache => "$id/data"
1982	}	2411	}
		2412
		2413	=item fork_call { }, $args
		2414
		2415	Executes the given code block with the given arguments in a seperate
		2416	process, returning the results. Everything must be serialisable with
		2417	Coro::Storable. May, of course, block. Note that the executed sub may
		2418	never block itself or use any form of Event handling.
		2419
		2420	=cut
		2421
		2422	sub fork_call(&@) {
		2423	my ($cb, @args) = @_;
		2424
		2425	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2426	# or die "socketpair: $!";
		2427	pipe my $fh1, my $fh2
		2428	or die "pipe: $!";
		2429
		2430	if (my $pid = fork) {
		2431	close $fh2;
		2432
		2433	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2434	$res = Coro::Storable::thaw $res;
		2435
		2436	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2437
		2438	die $$res unless "ARRAY" eq ref $res;
		2439
		2440	return wantarray ? @$res : $res->[-1];
		2441	} else {
		2442	local $SIG{__WARN__};
		2443	eval {
		2444	local $SIG{__DIE__};
		2445	close $fh1;
		2446
		2447	my @res = eval { $cb->(@args) };
		2448	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2449	};
		2450
		2451	warn $@ if $@;
		2452	_exit 0;
		2453	}
		2454	}
		2455
		2456
1983		2457
1984	#############################################################################	2458	#############################################################################
1985	# the server's main()	2459	# the server's init and main functions
		2460
		2461	sub load_facedata($) {
		2462	my ($path) = @_;
		2463
		2464	warn "loading facedata from $path\n";
		2465
		2466	my $facedata;
		2467	0 < aio_load $path, $facedata
		2468	or die "$path: $!";
		2469
		2470	$facedata = Coro::Storable::thaw $facedata;
		2471
		2472	$facedata->{version} == 2
		2473	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2474
		2475	{
		2476	my $faces = $facedata->{faceinfo};
		2477
		2478	while (my ($face, $info) = each %$faces) {
		2479	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2480	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2481	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2482	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2483	Coro::cede;
		2484	}
		2485
		2486	while (my ($face, $info) = each %$faces) {
		2487	next unless $info->{smooth};
		2488	my $idx = cf::face::find $face
		2489	or next;
		2490	if (my $smooth = cf::face::find $info->{smooth}) {
		2491	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2492	} else {
		2493	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2494	}
		2495	Coro::cede;
		2496	}
		2497	}
		2498
		2499	{
		2500	my $anims = $facedata->{animinfo};
		2501
		2502	while (my ($anim, $info) = each %$anims) {
		2503	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2504	Coro::cede;
		2505	}
		2506
		2507	cf::anim::invalidate_all; # d'oh
		2508	}
		2509
		2510	1
		2511	}
		2512
		2513	sub reload_regions {
		2514	load_resource_file "$MAPDIR/regions"
		2515	or die "unable to load regions file\n";
		2516	}
		2517
		2518	sub reload_facedata {
		2519	load_facedata "$DATADIR/facedata"
		2520	or die "unable to load facedata\n";
		2521	}
		2522
		2523	sub reload_archetypes {
		2524	load_resource_file "$DATADIR/archetypes"
		2525	or die "unable to load archetypes\n";
		2526	}
		2527
		2528	sub reload_treasures {
		2529	load_resource_file "$DATADIR/treasures"
		2530	or die "unable to load treasurelists\n";
		2531	}
		2532
		2533	sub reload_resources {
		2534	warn "reloading resource files...\n";
		2535
		2536	reload_regions;
		2537	reload_facedata;
		2538	reload_archetypes;
		2539	reload_treasures;
		2540
		2541	warn "finished reloading resource files\n";
		2542	}
		2543
		2544	sub init {
		2545	reload_resources;
		2546	}
1986		2547
1987	sub cfg_load {	2548	sub cfg_load {
1988	open my $fh, "<:utf8", cf::confdir . "/config"	2549	open my $fh, "<:utf8", "$CONFDIR/config"
1989	or return;	2550	or return;
1990		2551
1991	local $/;	2552	local $/;
1992	*CFG = YAML::Syck::Load <$fh>;	2553	*CFG = YAML::Syck::Load <$fh>;
		2554
		2555	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2556
		2557	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2558	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2559
		2560	if (exists $CFG{mlockall}) {
		2561	eval {
		2562	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2563	and die "WARNING: m(un)lockall failed: $!\n";
		2564	};
		2565	warn $@ if $@;
		2566	}
1993	}	2567	}
1994		2568
1995	sub main {	2569	sub main {
1996	# we must not ever block the main coroutine	2570	# we must not ever block the main coroutine
1997	local $Coro::idle = sub {	2571	local $Coro::idle = sub {
1998	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2572	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1999	(Coro::unblock_sub {	2573	(async {
2000	Event::one_event;	2574	Event::one_event;
2001	})->();	2575	})->prio (Coro::PRIO_MAX);
2002	};	2576	};
2003		2577
2004	cfg_load;	2578	cfg_load;
2005	db_load;	2579	db_init;
2006	load_extensions;	2580	load_extensions;
		2581
		2582	$TICK_WATCHER->start;
2007	Event::loop;	2583	Event::loop;
2008	}	2584	}
2009		2585
2010	#############################################################################	2586	#############################################################################
2011	# initialisation	2587	# initialisation and cleanup
2012		2588
		2589	# install some emergency cleanup handlers
		2590	BEGIN {
		2591	for my $signal (qw(INT HUP TERM)) {
		2592	Event->signal (
		2593	reentrant => 0,
		2594	data => WF_AUTOCANCEL,
		2595	signal => $signal,
		2596	prio => 0,
		2597	cb => sub {
		2598	cf::cleanup "SIG$signal";
		2599	},
		2600	);
		2601	}
		2602	}
		2603
		2604	sub emergency_save() {
		2605	my $freeze_guard = cf::freeze_mainloop;
		2606
		2607	warn "enter emergency perl save\n";
		2608
		2609	cf::sync_job {
		2610	# use a peculiar iteration method to avoid tripping on perl
		2611	# refcount bugs in for. also avoids problems with players
		2612	# and maps saved/destroyed asynchronously.
		2613	warn "begin emergency player save\n";
		2614	for my $login (keys %cf::PLAYER) {
		2615	my $pl = $cf::PLAYER{$login} or next;
		2616	$pl->valid or next;
		2617	$pl->save;
		2618	}
		2619	warn "end emergency player save\n";
		2620
		2621	warn "begin emergency map save\n";
		2622	for my $path (keys %cf::MAP) {
		2623	my $map = $cf::MAP{$path} or next;
		2624	$map->valid or next;
		2625	$map->save;
		2626	}
		2627	warn "end emergency map save\n";
		2628
		2629	warn "begin emergency database checkpoint\n";
		2630	BDB::db_env_txn_checkpoint $DB_ENV;
		2631	warn "end emergency database checkpoint\n";
		2632	};
		2633
		2634	warn "leave emergency perl save\n";
		2635	}
		2636
		2637	sub post_cleanup {
		2638	my ($make_core) = @_;
		2639
		2640	warn Carp::longmess "post_cleanup backtrace"
		2641	if $make_core;
		2642	}
		2643
2013	sub reload() {	2644	sub do_reload_perl() {
2014	# can/must only be called in main	2645	# can/must only be called in main
2015	if ($Coro::current != $Coro::main) {	2646	if ($Coro::current != $Coro::main) {
2016	warn "can only reload from main coroutine\n";	2647	warn "can only reload from main coroutine";
2017	return;	2648	return;
2018	}	2649	}
2019		2650
2020	warn "reloading...";	2651	warn "reloading...";
2021		2652
2022	local $FREEZE = 1;	2653	warn "entering sync_job";
		2654
		2655	cf::sync_job {
		2656	cf::write_runtime; # external watchdog should not bark
2023	cf::emergency_save;	2657	cf::emergency_save;
		2658	cf::write_runtime; # external watchdog should not bark
2024		2659
2025	eval {	2660	warn "syncing database to disk";
		2661	BDB::db_env_txn_checkpoint $DB_ENV;
		2662
2026	# if anything goes wrong in here, we should simply crash as we already saved	2663	# if anything goes wrong in here, we should simply crash as we already saved
2027		2664
2028	# cancel all watchers	2665	warn "cancelling all WF_AUTOCANCEL watchers";
2029	for (Event::all_watchers) {	2666	for (Event::all_watchers) {
2030	$_->cancel if $_->data & WF_AUTOCANCEL;	2667	$_->cancel if $_->data & WF_AUTOCANCEL;
2031	}	2668	}
2032		2669
		2670	warn "flushing outstanding aio requests";
		2671	for (;;) {
		2672	BDB::flush;
		2673	IO::AIO::flush;
		2674	Coro::cede;
		2675	last unless IO::AIO::nreqs || BDB::nreqs;
		2676	warn "iterate...";
		2677	}
		2678
		2679	++$RELOAD;
		2680
2033	# cancel all extension coros	2681	warn "cancelling all extension coros";
2034	$_->cancel for values %EXT_CORO;	2682	$_->cancel for values %EXT_CORO;
2035	%EXT_CORO = ();	2683	%EXT_CORO = ();
2036		2684
2037	# unload all extensions	2685	warn "removing commands";
2038	for (@exts) {	2686	%COMMAND = ();
		2687
		2688	warn "removing ext commands";
		2689	%EXTCMD = ();
		2690
		2691	warn "unloading/nuking all extensions";
		2692	for my $pkg (@EXTS) {
2039	warn "unloading <$_>";	2693	warn "... unloading $pkg";
2040	unload_extension $_;	2694
		2695	if (my $cb = $pkg->can ("unload")) {
		2696	eval {
		2697	$cb->($pkg);
		2698	1
		2699	} or warn "$pkg unloaded, but with errors: $@";
2041	}	2700	}
2042		2701
		2702	warn "... nuking $pkg";
		2703	Symbol::delete_package $pkg;
		2704	}
		2705
2043	# unload all modules loaded from $LIBDIR	2706	warn "unloading all perl modules loaded from $LIBDIR";
2044	while (my ($k, $v) = each %INC) {	2707	while (my ($k, $v) = each %INC) {
2045	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2708	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2046		2709
2047	warn "removing <$k>";	2710	warn "... unloading $k";
2048	delete $INC{$k};	2711	delete $INC{$k};
2049		2712
2050	$k =~ s/\.pm$//;	2713	$k =~ s/\.pm$//;
2051	$k =~ s/\//::/g;	2714	$k =~ s/\//::/g;
2052		2715
…		…
2055	}	2718	}
2056		2719
2057	Symbol::delete_package $k;	2720	Symbol::delete_package $k;
2058	}	2721	}
2059		2722
2060	# sync database to disk
2061	cf::db_sync;
2062	IO::AIO::flush;
2063
2064	# get rid of safe::, as good as possible	2723	warn "getting rid of safe::, as good as possible";
2065	Symbol::delete_package "safe::$_"	2724	Symbol::delete_package "safe::$_"
2066	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2725	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2067		2726
2068	# remove register_script_function callbacks
2069	# TODO
2070
2071	# unload cf.pm "a bit"	2727	warn "unloading cf.pm \"a bit\"";
2072	delete $INC{"cf.pm"};	2728	delete $INC{"cf.pm"};
		2729	delete $INC{"cf/pod.pm"};
2073		2730
2074	# don't, removes xs symbols, too,	2731	# don't, removes xs symbols, too,
2075	# and global variables created in xs	2732	# and global variables created in xs
2076	#Symbol::delete_package __PACKAGE__;	2733	#Symbol::delete_package __PACKAGE__;
2077		2734
2078	# reload cf.pm	2735	warn "unload completed, starting to reload now";
		2736
2079	warn "reloading cf.pm";	2737	warn "reloading cf.pm";
2080	require cf;	2738	require cf;
2081	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2739	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2082		2740
2083	# load config and database again	2741	warn "loading config and database again";
2084	cf::cfg_load;	2742	cf::cfg_load;
2085	cf::db_load;
2086		2743
2087	# load extensions
2088	warn "load extensions";	2744	warn "loading extensions";
2089	cf::load_extensions;	2745	cf::load_extensions;
2090		2746
2091	# reattach attachments to objects	2747	warn "reattaching attachments to objects/players";
2092	warn "reattach";	2748	_global_reattach; # objects, sockets
2093	_global_reattach;	2749	warn "reattaching attachments to maps";
2094	};	2750	reattach $_ for values %MAP;
		2751	warn "reattaching attachments to players";
		2752	reattach $_ for values %PLAYER;
2095		2753
2096	if ($@) {	2754	warn "leaving sync_job";
		2755
		2756	1
		2757	} or do {
2097	warn $@;	2758	warn $@;
2098	warn "error while reloading, exiting.";	2759	warn "error while reloading, exiting.";
2099	exit 1;	2760	exit 1;
2100	}	2761	};
2101		2762
2102	warn "reloaded successfully";	2763	warn "reloaded";
2103	};	2764	};
2104		2765
2105	#############################################################################	2766	our $RELOAD_WATCHER; # used only during reload
2106		2767
2107	unless ($LINK_MAP) {	2768	sub reload_perl() {
2108	$LINK_MAP = cf::map::new;	2769	# doing reload synchronously and two reloads happen back-to-back,
		2770	# coro crashes during coro_state_free->destroy here.
2109		2771
2110	$LINK_MAP->width (41);	2772	$RELOAD_WATCHER ||= Event->timer (
2111	$LINK_MAP->height (41);	2773	reentrant => 0,
2112	$LINK_MAP->alloc;
2113	$LINK_MAP->path ("{link}");
2114	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2115	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2116
2117	# dirty hack because... archetypes are not yet loaded
2118	Event->timer (
2119	after => 2,	2774	after => 0,
		2775	data => WF_AUTOCANCEL,
2120	cb => sub {	2776	cb => sub {
2121	$_[0]->w->cancel;	2777	do_reload_perl;
2122		2778	undef $RELOAD_WATCHER;
2123	# provide some exits "home"
2124	my $exit = cf::object::new "exit";
2125
2126	$exit->slaying ($EMERGENCY_POSITION->[0]);
2127	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2128	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2129
2130	$LINK_MAP->insert ($exit->clone, 19, 19);
2131	$LINK_MAP->insert ($exit->clone, 19, 20);
2132	$LINK_MAP->insert ($exit->clone, 19, 21);
2133	$LINK_MAP->insert ($exit->clone, 20, 19);
2134	$LINK_MAP->insert ($exit->clone, 20, 21);
2135	$LINK_MAP->insert ($exit->clone, 21, 19);
2136	$LINK_MAP->insert ($exit->clone, 21, 20);
2137	$LINK_MAP->insert ($exit->clone, 21, 21);
2138
2139	$exit->destroy;
2140	});	2779	},
2141		2780	);
2142	$LINK_MAP->{deny_save} = 1;
2143	$LINK_MAP->{deny_reset} = 1;
2144
2145	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2146	}	2781	}
2147
2148	register "<global>", __PACKAGE__;
2149		2782
2150	register_command "reload" => sub {	2783	register_command "reload" => sub {
2151	my ($who, $arg) = @_;	2784	my ($who, $arg) = @_;
2152		2785
2153	if ($who->flag (FLAG_WIZ)) {	2786	if ($who->flag (FLAG_WIZ)) {
2154	$who->message ("start of reload.");
2155	reload;
2156	$who->message ("end of reload.");	2787	$who->message ("reloading server.");
		2788	async { reload_perl };
2157	}	2789	}
2158	};	2790	};
2159		2791
2160	unshift @INC, $LIBDIR;	2792	unshift @INC, $LIBDIR;
		2793
		2794	my $bug_warning = 0;
		2795
		2796	our @WAIT_FOR_TICK;
		2797	our @WAIT_FOR_TICK_BEGIN;
		2798
		2799	sub wait_for_tick {
		2800	return unless $TICK_WATCHER->is_active;
		2801	return if $Coro::current == $Coro::main;
		2802
		2803	my $signal = new Coro::Signal;
		2804	push @WAIT_FOR_TICK, $signal;
		2805	$signal->wait;
		2806	}
		2807
		2808	sub wait_for_tick_begin {
		2809	return unless $TICK_WATCHER->is_active;
		2810	return if $Coro::current == $Coro::main;
		2811
		2812	my $signal = new Coro::Signal;
		2813	push @WAIT_FOR_TICK_BEGIN, $signal;
		2814	$signal->wait;
		2815	}
2161		2816
2162	$TICK_WATCHER = Event->timer (	2817	$TICK_WATCHER = Event->timer (
2163	reentrant => 0,	2818	reentrant => 0,
		2819	parked => 1,
2164	prio => 0,	2820	prio => 0,
2165	at => $NEXT_TICK || $TICK,	2821	at => $NEXT_TICK || $TICK,
2166	data => WF_AUTOCANCEL,	2822	data => WF_AUTOCANCEL,
2167	cb => sub {	2823	cb => sub {
2168	unless ($FREEZE) {	2824	if ($Coro::current != $Coro::main) {
		2825	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2826	unless ++$bug_warning > 10;
		2827	return;
		2828	}
		2829
		2830	$NOW = Event::time;
		2831
2169	cf::server_tick; # one server iteration	2832	cf::server_tick; # one server iteration
		2833
2170	$RUNTIME += $TICK;	2834	$RUNTIME += $TICK;
2171	}
2172
2173	$NEXT_TICK += $TICK;	2835	$NEXT_TICK += $TICK;
		2836
		2837	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2838	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2839	Coro::async_pool {
		2840	write_runtime
		2841	or warn "ERROR: unable to write runtime file: $!";
		2842	};
		2843	}
		2844
		2845	# my $AFTER = Event::time;
		2846	# warn $AFTER - $NOW;#d#
2174		2847
2175	# if we are delayed by four ticks or more, skip them all	2848	# if we are delayed by four ticks or more, skip them all
2176	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2849	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2177		2850
2178	$TICK_WATCHER->at ($NEXT_TICK);	2851	$TICK_WATCHER->at ($NEXT_TICK);
2179	$TICK_WATCHER->start;	2852	$TICK_WATCHER->start;
		2853
		2854	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2855	$sig->send;
		2856	}
		2857	while (my $sig = shift @WAIT_FOR_TICK) {
		2858	$sig->send;
		2859	}
		2860
		2861	_post_tick;
2180	},	2862	},
2181	);	2863	);
2182		2864
		2865	{
2183	IO::AIO::max_poll_time $TICK * 0.2;	2866	BDB::max_poll_time $TICK * 0.1;
2184		2867	$BDB_POLL_WATCHER = Event->io (
2185	Event->io (	2868	reentrant => 0,
2186	fd => IO::AIO::poll_fileno,	2869	fd => BDB::poll_fileno,
2187	poll => 'r',	2870	poll => 'r',
2188	prio => 5,	2871	prio => 0,
2189	data => WF_AUTOCANCEL,
2190	cb => \&IO::AIO::poll_cb,
2191	);
2192
2193	Event->timer (
2194	data => WF_AUTOCANCEL,	2872	data => WF_AUTOCANCEL,
2195	after => 0,	2873	cb => \&BDB::poll_cb,
2196	interval => 10,	2874	);
2197	cb => sub {	2875	BDB::min_parallel 8;
2198	(Coro::unblock_sub {	2876
2199	write_runtime	2877	BDB::set_sync_prepare {
2200	or warn "ERROR: unable to write runtime file: $!";	2878	my $status;
		2879	my $current = $Coro::current;
		2880	(
		2881	sub {
		2882	$status = $!;
		2883	$current->ready; undef $current;
		2884	},
		2885	sub {
		2886	Coro::schedule while defined $current;
		2887	$! = $status;
		2888	},
		2889	)
		2890	};
		2891
		2892	unless ($DB_ENV) {
		2893	$DB_ENV = BDB::db_env_create;
		2894
		2895	cf::sync_job {
		2896	eval {
		2897	BDB::db_env_open
		2898	$DB_ENV,
		2899	$BDBDIR,
		2900	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2901	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2902	0666;
		2903
		2904	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2905
		2906	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2907	$DB_ENV->set_lk_detect;
		2908	};
		2909
		2910	cf::cleanup "db_env_open(db): $@" if $@;
2201	})->();	2911	};
2202	},	2912	}
2203	);	2913	}
		2914
		2915	{
		2916	IO::AIO::min_parallel 8;
		2917
		2918	undef $Coro::AIO::WATCHER;
		2919	IO::AIO::max_poll_time $TICK * 0.1;
		2920	$AIO_POLL_WATCHER = Event->io (
		2921	reentrant => 0,
		2922	data => WF_AUTOCANCEL,
		2923	fd => IO::AIO::poll_fileno,
		2924	poll => 'r',
		2925	prio => 6,
		2926	cb => \&IO::AIO::poll_cb,
		2927	);
		2928	}
		2929
		2930	# load additional modules
		2931	use cf::pod;
2204		2932
2205	END { cf::emergency_save }	2933	END { cf::emergency_save }
2206		2934
2207	1	2935	1
2208		2936

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