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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.262 by root, Sat Apr 28 05:55:55 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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
77		111
78	#############################################################################	112	#############################################################################
79		113
80	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
81		115
…		…
88	=item $cf::RUNTIME	122	=item $cf::RUNTIME
89		123
90	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
91	every server tick.	125	every server tick.
92		126
93	=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
94		130
95	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		135
98	=item $cf::NOW	136	=item $cf::NOW
99		137
100	The time of the last (current) server tick.	138	The time of the last (current) server tick.
101		139
…		…
105		143
106	=item %cf::CFG	144	=item %cf::CFG
107		145
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		154
111	=back	155	=back
112		156
113	=cut	157	=cut
114		158
115	BEGIN {	159	BEGIN {
116	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	161	my $msg = join "", @_;
118	utf8::encode $msg;
119		162
120	$msg .= "\n"	163	$msg .= "\n"
121	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
122		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
124	};	170	};
125	}	171	}
126		172
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		192
147	$Event::DIED = sub {	193	$Event::DIED = sub {
148	warn "error in event callback: @_";	194	warn "error in event callback: @_";
149	};	195	};
150		196
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
156		198
157	=over 4	199	=over 4
158		200
159	=cut	201	=item dumpval $ref
160		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
161	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
162		225
163	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
164		227
165	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
166		229
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
175		231
176	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
177		233
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184
185	=item my $guard = cf::guard { BLOCK }
186
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206
207	=item cf::lock_wait $string	234	=item cf::lock_wait $string
208		235
209	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
210		237
211	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
212		239
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
216	returned.	243	returned.
217		244
218	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
219	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.
220		251
221	=cut	252	=cut
222		253
223	our %LOCK;	254	our %LOCK;
224		255
…		…
238	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
239	lock_wait $key;	270	lock_wait $key;
240		271
241	$LOCK{$key} = [];	272	$LOCK{$key} = [];
242		273
243	cf::guard {	274	Coro::guard {
244	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
246	}	277	}
247	}	278	}
248		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	$guard
		294	}
		295
249	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
250		297
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	298	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
253		301
254	=cut	302	=cut
255		303
256	sub async(&) {	304	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		305
265	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
266		307
267	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
268	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
…		…
282	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
284		325
285	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	327	# (but this is cancel-safe)
287	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
288		329
289	my $busy = 1;	330	my $busy = 1;
290	my @res;	331	my @res;
291		332
292	(Coro::async {	333	(async {
293	@res = eval { $job->() };	334	@res = eval { $job->() };
294	warn $@ if $@;	335	warn $@ if $@;
295	undef $busy;	336	undef $busy;
296	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
297		338
298	while ($busy) {	339	while ($busy) {
299	Coro::cede_notself;	340	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	341	}
302		342
303	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
304	} else {	344	} else {
305	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
306		346
307	$job->()	347	$job->()
308	}	348	}
309	}	349	}
310		350
311	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
312		352
313	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
315		355
316	=cut	356	=cut
317		357
318	sub coro(&) {	358	sub async_ext(&) {
319	my $cb = shift;	359	my $cb = shift;
320		360
321	my $coro = &cf::async ($cb);	361	my $coro = &Coro::async ($cb);
322		362
323	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
325	});	365	});
326	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
327		367
328	$coro	368	$coro
329	}	369	}
330		370
331	sub write_runtime {	371	sub write_runtime {
332	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
333		375
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	377	or return;
336		378
		379	my $value = $cf::RUNTIME + 90 + 10;
337	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
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	384	and return;
340		385
		386	# always fsync - this file is important
341	aio_fsync $fh	387	aio_fsync $fh
342	and return;	388	and return;
343		389
344	close $fh	390	close $fh
345	or return;	391	or return;
…		…
348	and return;	394	and return;
349		395
350	1	396	1
351	}	397	}
352		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
353	=back	410	=back
354		411
355	=cut	412	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		413
477	#############################################################################	414	#############################################################################
478		415
479	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
480		417
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	544	our @CB_MAP = ();
608		545
609	my %attachment;	546	my %attachment;
610		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
611	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
613		556
614	use sort 'stable';	557	use sort 'stable';
615		558
…		…
786	# object support	729	# object support
787		730
788	sub reattach {	731	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		736
792	my $registry = $obj->registry;	737	my $registry = $obj->registry;
793		738
794	@$registry = ();	739	@$registry = ();
795		740
…		…
842	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
843		788
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	793	close $fh;
849		794
850	if (@$objs) {	795	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	801	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
858	}	803	}
859	} else {	804	} else {
860	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
927	=cut	872	=cut
928		873
929	sub register_extcmd {	874	sub register_extcmd {
930	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
931		876
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
936	}	878	}
937		879
938	cf::player->attach (	880	cf::player->attach (
939	on_command => sub {	881	on_command => sub {
940	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
953		895
954	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
955		897
956	if (ref $msg) {	898	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	902	}
961	}	903	}
962	} else {	904	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		907
966	cf::override;	908	cf::override;
967	},	909	},
968	);	910	);
969		911
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	912	sub load_extension {
977	my ($path) = @_;	913	my ($path) = @_;
978		914
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	916	my $base = $1;
981	my $pkg = $1;	917	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
984		920
985	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
986		922
987	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
988	or die "$path: $!";	924	or die "$path: $!";
989		925
990	my $source =	926	my $source =
991	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
994	. "\n};\n1";	930	. "\n};\n1";
995		931
996	eval $source	932	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	934	: "extension disabled.\n";
999		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	936	warn $@;
1001	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
1002		938	exit 1;
1003	# no strict 'refs';	939	}
1004	# @{"$pkg\::ISA"} = ext::;	940	die $@;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	941	}
1019		942
1020	# remove commands	943	push @EXTS, $pkg;
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	944	}
1045		945
1046	sub load_extensions {	946	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	948	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
1053	}	953	}
1054	}	954	}
1055		955
1056	#############################################################################	956	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093		957
1094	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1095		959
1096	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1097		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1098	=head3 cf::player	968	=head3 cf::player
1099		969
1100	=over 4	970	=over 4
1101		971
1102	=item cf::player::exists $login	972	=item cf::player::find $login
1103		973
1104	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1105		975
1106	=cut	976	=cut
1107		977
1108	sub cf::player::exists($) {	978	sub playerdir($) {
1109	cf::player::find $_[0]	979	"$PLAYERDIR/"
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	981	}
1112		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
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1114		1155
1115	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1116		1157
1117	=cut	1158	=cut
1118		1159
1119	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1120	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1121		1162
1122	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1123		1164
1124	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		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
1125	}	1207	}
1126		1208
1127	=back	1209	=back
1128
1129		1210
1130	=head3 cf::map	1211	=head3 cf::map
1131		1212
1132	=over 4	1213	=over 4
1133		1214
…		…
1136	package cf::map;	1217	package cf::map;
1137		1218
1138	use Fcntl;	1219	use Fcntl;
1139	use Coro::AIO;	1220	use Coro::AIO;
1140		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1141	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1143		1228
1144	sub generate_random_map {	1229	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1232	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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"
1161	}	1374	}
1162		1375
1163	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1164	# all maps in C++...	1377	# all maps in C++...
1165	sub change_all_map_light {	1378	sub change_all_map_light {
…		…
1167		1380
1168	$_->change_map_light ($change)	1381	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1382	for grep $_->outdoor, values %cf::MAP;
1170	}	1383	}
1171		1384
		1385	sub unlink_save {
		1386	my ($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
1172	sub try_load_header($) {	1393	sub load_header_from($) {
1173	my ($path) = @_;	1394	my ($self, $path) = @_;
1174		1395
1175	utf8::encode $path;	1396	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1177	or return;	1401	or return;
1178		1402
1179	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
1180	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1181		1449
1182	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1183	or return;	1451	unless $self->default_region;
1184		1452
1185	$map->{load_path} = $path;	1453	1
1186
1187	$map
1188	}	1454	}
1189		1455
1190	sub find_map;	1456	sub find;
1191	sub find_map {	1457	sub find {
1192	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1193		1459
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1461
1199	cf::lock_wait "map_find:$key";	1462	cf::lock_wait "map_find:$path";
1200		1463
1201	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1465	my $guard = cf::lock_acquire "map_find:$path";
1203		1466	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1467	or return;
1221		1468
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1234		1470
1235	if ($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;
1236	$map->reset;	1477	$map->reset;
1237	undef $guard;	1478	undef $guard;
1238	$map = find_map $path	1479	return find $path;
1239	or return;
1240	}	1480	}
1241		1481
1242	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1243	}	1483	}
1244	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1245		1488
1246	sub load {	1489	sub load {
1247	my ($self) = @_;	1490	my ($self) = @_;
1248		1491
		1492	local $self->{deny_reset} = 1; # loading can take a long time
		1493
1249	my $path = $self->{path};	1494	my $path = $self->{path};
		1495
		1496	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1497	my $guard = cf::lock_acquire "map_load:$path";
1251		1498
1252	return if $self->in_memory != cf::MAP_SWAPPED;	1499	return if $self->in_memory != cf::MAP_SWAPPED;
1253		1500
1254	$self->in_memory (cf::MAP_LOADING);	1501	$self->in_memory (cf::MAP_LOADING);
1255		1502
1256	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1257	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1258	or return;	1509	or return;
1259		1510
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261	if delete $self->{load_original};	1512	if delete $self->{load_original};
1262		1513
1263	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	1515	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1266	$self->clear_unique_items;	1517	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1268	}	1519	}
1269	}	1520	}
1270		1521
		1522	Coro::cede;
1271	# now do the right thing for maps	1523	# now do the right thing for maps
1272	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1283	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;
1284	$self->activate;	1536	$self->activate;
1285	}	1537	}
1286		1538
1287	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1288	}	1540	}
1289		1541
1290	sub load_map_sync {	1542	$self->post_load;
		1543	}
		1544
		1545	sub customise_for {
		1546	my ($self, $ob) = @_;
		1547
		1548	return find "~" . $ob->name . "/" . $self->{path}
		1549	if $self->per_player;
		1550
		1551	$self
		1552	}
		1553
		1554	# find and load all maps in the 3x3 area around a map
		1555	sub load_diag {
		1556	my ($map) = @_;
		1557
		1558	my @diag; # diagonal neighbours
		1559
		1560	for (0 .. 3) {
		1561	my $neigh = $map->tile_path ($_)
		1562	or next;
		1563	$neigh = find $neigh, $map
		1564	or next;
		1565	$neigh->load;
		1566
		1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1569	}
		1570
		1571	for (@diag) {
		1572	my $neigh = find @$_
		1573	or next;
		1574	$neigh->load;
		1575	}
		1576	}
		1577
		1578	sub find_sync {
1291	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1292		1580
1293	#warn "load_map_sync<$path, $origin>\n";#d#	1581	cf::sync_job { find $path, $origin }
		1582	}
1294		1583
1295	cf::sync_job {	1584	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	1585	my ($map) = @_;
1297	or return;	1586
		1587	cf::sync_job { $map->load };
		1588	}
		1589
		1590	our %MAP_PREFETCH;
		1591	our $MAP_PREFETCHER = undef;
		1592
		1593	sub find_async {
		1594	my ($path, $origin) = @_;
		1595
		1596	$path = normalise $path, $origin && $origin->{path};
		1597
		1598	if (my $map = $cf::MAP{$path}) {
		1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1600	}
		1601
		1602	undef $MAP_PREFETCH{$path};
		1603	$MAP_PREFETCHER ||= cf::async {
		1604	while (%MAP_PREFETCH) {
		1605	for my $path (keys %MAP_PREFETCH) {
		1606	my $map = find $path
		1607	or next;
1298	$map->load;	1608	$map->load;
1299	$map	1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
1300	}	1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
1301	}	1618	}
1302		1619
1303	sub save {	1620	sub save {
1304	my ($self) = @_;	1621	my ($self) = @_;
1305		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1306	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1307		1626
1308	return unless $self->dirty;	1627	return unless $self->dirty;
1309		1628
1310	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		1631
1313	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1314		1633
1315	return if $self->{deny_save};	1634	return if $self->{deny_save};
1316		1635
1317	local $self->{last_access} = $self->last_access;#d#	1636	local $self->{last_access} = $self->last_access;#d#
1318		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1319	if ($uniq) {	1642	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	1645	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	1647	}
1325	}	1648	}
1326		1649
1327	sub swap_out {	1650	sub swap_out {
1328	my ($self) = @_;	1651	my ($self) = @_;
1329		1652
1330	# save first because save cedes	1653	# save first because save cedes
1331	$self->save;	1654	$self->save;
		1655
		1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
1332		1657
1333	return if $self->players;	1658	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};	1660	return if $self->{deny_save};
1336		1661
…		…
1340		1665
1341	sub reset_at {	1666	sub reset_at {
1342	my ($self) = @_;	1667	my ($self) = @_;
1343		1668
1344	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1346	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1347		1672
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		1675
…		…
1355	my ($self) = @_;	1680	my ($self) = @_;
1356		1681
1357	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1358	}	1683	}
1359		1684
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	1685	sub reset {
1382	my ($self) = @_;	1686	my ($self) = @_;
1383		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1384	return if $self->players;	1690	return if $self->players;
1385	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1386		1692
1387	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1388		1694
		1695	$self->in_memory (cf::MAP_SWAPPED);
		1696
		1697	# need to save uniques path
		1698	unless ($self->{deny_save}) {
		1699	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1700
		1701	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1702	if $uniq;
		1703	}
		1704
1389	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1390		1708
1391	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1392		1710
1393	$self->unlink_save;	1711	$self->unlink_save;
1394	$self->destroy;	1712	$self->destroy;
…		…
1397	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1398		1716
1399	sub nuke {	1717	sub nuke {
1400	my ($self) = @_;	1718	my ($self) = @_;
1401		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1405	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1406	}	1733	}
1407		1734
1408	sub customise_for {	1735	=item cf::map::unique_maps
1409	my ($map, $ob) = @_;
1410		1736
1411	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1413	}
1414		1739
1415	$map	1740	=cut
1416	}
1417		1741
1418	sub emergency_save {	1742	sub unique_maps() {
1419	local $cf::FREEZE = 1;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1420		1745
1421	warn "enter emergency map save\n";	1746	my @paths;
1422		1747
1423	cf::sync_job {	1748	for (@$files) {
1424	warn "begin emergency map save\n";	1749	utf8::decode $_;
1425	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1426	};	1754	}
1427		1755
1428	warn "end emergency map save\n";	1756	\@paths
1429	}	1757	}
1430		1758
1431	package cf;	1759	package cf;
1432		1760
1433	=back	1761	=back
1434		1762
		1763	=head3 cf::object
		1764
		1765	=cut
		1766
		1767	package cf::object;
		1768
		1769	=over 4
		1770
		1771	=item $ob->inv_recursive
		1772
		1773	Returns the inventory of the object _and_ their inventories, recursively.
		1774
		1775	=cut
		1776
		1777	sub inv_recursive_;
		1778	sub inv_recursive_ {
		1779	map { $_, inv_recursive_ $_->inv } @_
		1780	}
		1781
		1782	sub inv_recursive {
		1783	inv_recursive_ inv $_[0]
		1784	}
		1785
		1786	package cf;
		1787
		1788	=back
1435		1789
1436	=head3 cf::object::player	1790	=head3 cf::object::player
1437		1791
1438	=over 4	1792	=over 4
1439		1793
…		…
1479		1833
1480	=item $player_object->enter_link	1834	=item $player_object->enter_link
1481		1835
1482	Freezes the player and moves him/her to a special map (C<{link}>).	1836	Freezes the player and moves him/her to a special map (C<{link}>).
1483		1837
1484	The player should be reaosnably safe there for short amounts of time. You	1838	The player should be reasonably safe there for short amounts of time. You
1485	I<MUST> call C<leave_link> as soon as possible, though.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1486		1840
		1841	Will never block.
		1842
1487	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1488		1844
1489	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	1848	fails, to the emergency map position.
1493		1849
1494	Might block.	1850	Might block.
1495		1851
1496	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($LINK_MAP) {
		1856	$LINK_MAP = cf::map::find "{link}"
		1857	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1858	$LINK_MAP->load;
		1859	}
		1860
		1861	$LINK_MAP
		1862	}
1497		1863
1498	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1499	my ($self) = @_;	1865	my ($self) = @_;
1500		1866
1501	$self->deactivate_recursive;	1867	$self->deactivate_recursive;
1502		1868
1503	return if $self->map == $LINK_MAP;	1869	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		1870
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	1872	if $self->map;
1507		1873
1508	$self->enter_map ($LINK_MAP, 20, 20);	1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1509	}	1875	}
1510		1876
1511	sub cf::object::player::leave_link {	1877	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	1878	my ($self, $map, $x, $y) = @_;
1513		1879
1514	my $link_pos = delete $self->{_link_pos};	1880	my $link_pos = delete $self->{_link_pos};
1515		1881
1516	unless ($map) {	1882	unless ($map) {
1517	# restore original map position	1883	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	1884	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	1885	$map = cf::map::find $map;
1520		1886
1521	unless ($map) {	1887	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	1888	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	1889	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	1890	or die "FATAL: cannot load emergency map\n";
1525	}	1891	}
1526	}	1892	}
1527		1893
1528	($x, $y) = (-1, -1)	1894	($x, $y) = (-1, -1)
…		…
1531	# use -1 or undef as default coordinates, not 0, 0	1897	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	1898	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	1899	if $x <=0 && $y <= 0;
1534		1900
1535	$map->load;	1901	$map->load;
		1902	$map->load_diag;
1536		1903
		1904	return unless $self->contr->active;
1537	$self->activate_recursive;	1905	$self->activate_recursive;
		1906
		1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1538	$self->enter_map ($map, $x, $y);	1908	$self->enter_map ($map, $x, $y);
1539	}	1909	}
1540		1910
1541	cf::player->attach (	1911	cf::player->attach (
1542	on_logout => sub {	1912	on_logout => sub {
…		…
1554		1924
1555	# try to abort aborted map switching on player login :)	1925	# try to abort aborted map switching on player login :)
1556	# should happen only on crashes	1926	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {	1927	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;	1928	$pl->ob->enter_link;
1559	cf::async {	1929	(async {
		1930	$pl->ob->reply (undef,
		1931	"There was an internal problem at your last logout, "
		1932	. "the server will try to bring you to your intended destination in a second.",
		1933	cf::NDI_RED);
1560	# we need this sleep as the login has a concurrent enter_exit running	1934	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn	1935	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;	1936	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;	1937	$pl->ob->leave_link;
1564	};	1938	})->prio (2);
1565	}	1939	}
1566	},	1940	},
1567	);	1941	);
1568		1942
1569	=item $player_object->goto_map ($path, $x, $y)	1943	=item $player_object->goto ($path, $x, $y)
1570		1944
1571	=cut	1945	=cut
1572		1946
1573	sub cf::object::player::goto_map {	1947	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	1948	my ($self, $path, $x, $y) = @_;
1575		1949
1576	$self->enter_link;	1950	$self->enter_link;
1577		1951
1578	(cf::async {	1952	(async {
1579	$path = new cf::path $path;	1953	my $map = eval {
1580
1581	my $map = cf::map::find_map $path->as_string;	1954	my $map = cf::map::find $path;
1582	$map = $map->customise_for ($self) if $map;	1955	$map = $map->customise_for ($self) if $map;
1583		1956	$map
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	1957	} or
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1588		1959
1589	$self->leave_link ($map, $x, $y);	1960	$self->leave_link ($map, $x, $y);
1590	})->prio (1);	1961	})->prio (1);
1591	}	1962	}
1592		1963
…		…
1596		1967
1597	sub parse_random_map_params {	1968	sub parse_random_map_params {
1598	my ($spec) = @_;	1969	my ($spec) = @_;
1599		1970
1600	my $rmp = { # defaults	1971	my $rmp = { # defaults
1601	xsize => 10,	1972	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	1973	ysize => (cf::rndm 15, 40),
		1974	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1975	#layout => string,
1603	};	1976	};
1604		1977
1605	for (split /\n/, $spec) {	1978	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	1979	my ($k, $v) = split /\s+/, $_, 2;
1607		1980
…		…
1611	$rmp	1984	$rmp
1612	}	1985	}
1613		1986
1614	sub prepare_random_map {	1987	sub prepare_random_map {
1615	my ($exit) = @_;	1988	my ($exit) = @_;
		1989
		1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1616		1991
1617	# all this does is basically replace the /! path by	1992	# all this does is basically replace the /! path by
1618	# a new random map path (?random/...) with a seed	1993	# a new random map path (?random/...) with a seed
1619	# that depends on the exit object	1994	# that depends on the exit object
1620		1995
1621	my $rmp = parse_random_map_params $exit->msg;	1996	my $rmp = parse_random_map_params $exit->msg;
1622		1997
1623	if ($exit->map) {	1998	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	1999	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2000	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2001	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2002	$rmp->{origin_y} = $exit->y;
1628	}	2003	}
1629		2004
1630	$rmp->{random_seed} ||= $exit->random_seed;	2005	$rmp->{random_seed} ||= $exit->random_seed;
1631		2006
1632	my $data = cf::to_json $rmp;	2007	my $data = cf::to_json $rmp;
1633	my $md5 = Digest::MD5::md5_hex $data;	2008	my $md5 = Digest::MD5::md5_hex $data;
		2009	my $meta = "$RANDOMDIR/$md5.meta";
1634		2010
1635	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636	aio_write $fh, 0, (length $data), $data, 0;	2012	aio_write $fh, 0, (length $data), $data, 0;
		2013	undef $fh;
		2014	aio_rename "$meta~", $meta;
1637		2015
1638	$exit->slaying ("?random/$md5");	2016	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2017	$exit->msg (undef);
1640	}	2018	}
1641	}	2019	}
…		…
1643	sub cf::object::player::enter_exit {	2021	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2022	my ($self, $exit) = @_;
1645		2023
1646	return unless $self->type == cf::PLAYER;	2024	return unless $self->type == cf::PLAYER;
1647		2025
		2026	if ($exit->slaying eq "/!") {
		2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2028	# the problem is that $exit might not survive long enough
		2029	# so it needs to be done right now, right here
		2030	cf::sync_job { prepare_random_map $exit };
		2031	}
		2032
		2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2034	my $hp = $exit->stats->hp;
		2035	my $sp = $exit->stats->sp;
		2036
1648	$self->enter_link;	2037	$self->enter_link;
1649		2038
1650	(cf::async {	2039	(async {
		2040	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2041	unless (eval {
1652	prepare_random_map $exit	2042	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1657		2043
1658	1;	2044	1;
1659	}) {	2045	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2046	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2047	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2048	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2049	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2050
1665	warn "ERROR in enter_exit: $@";	2051	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2052	$self->leave_link;
1667	}	2053	}
1668	})->prio (1);	2054	})->prio (1);
…		…
1681		2067
1682	sub cf::client::send_drawinfo {	2068	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2069	my ($self, $text, $flags) = @_;
1684		2070
1685	utf8::encode $text;	2071	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2073	}
1688		2074
		2075	=item $client->ext_event ($type, %msg)
		2076
		2077	Sends an exti event to the client.
		2078
		2079	=cut
		2080
		2081	sub cf::client::ext_event($$%) {
		2082	my ($self, $type, %msg) = @_;
		2083
		2084	$msg{msgtype} = "event_$type";
		2085	$self->send_packet ("ext " . cf::to_json \%msg);
		2086	}
1689		2087
1690	=item $success = $client->query ($flags, "text", \&cb)	2088	=item $success = $client->query ($flags, "text", \&cb)
1691		2089
1692	Queues a query to the client, calling the given callback with	2090	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1722	# get handled first	2120	# get handled first
1723	my $queue = delete $ns->{query_queue}	2121	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2122	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2123
1726	(shift @$queue)->[1]->($msg);	2124	(shift @$queue)->[1]->($msg);
		2125	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2126
1728	push @{ $ns->{query_queue} }, @$queue;	2127	push @{ $ns->{query_queue} }, @$queue;
1729		2128
1730	if (@{ $ns->{query_queue} } == @$queue) {	2129	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2130	if (@$queue) {
…		…
1735	}	2134	}
1736	}	2135	}
1737	},	2136	},
1738	);	2137	);
1739		2138
1740	=item $client->coro (\&cb)	2139	=item $client->async (\&cb)
1741		2140
1742	Create a new coroutine, running the specified callback. The coroutine will	2141	Create a new coroutine, running the specified callback. The coroutine will
1743	be automatically cancelled when the client gets destroyed (e.g. on logout,	2142	be automatically cancelled when the client gets destroyed (e.g. on logout,
1744	or loss of connection).	2143	or loss of connection).
1745		2144
1746	=cut	2145	=cut
1747		2146
1748	sub cf::client::coro {	2147	sub cf::client::async {
1749	my ($self, $cb) = @_;	2148	my ($self, $cb) = @_;
1750		2149
1751	my $coro = &cf::async ($cb);	2150	my $coro = &Coro::async ($cb);
1752		2151
1753	$coro->on_destroy (sub {	2152	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	2153	delete $self->{_coro}{$coro+0};
1755	});	2154	});
1756		2155
…		…
1789		2188
1790	# here we export the classes and methods available to script code	2189	# here we export the classes and methods available to script code
1791		2190
1792	=pod	2191	=pod
1793		2192
1794	The following fucntions and emthods are available within a safe environment:	2193	The following functions and methods are available within a safe environment:
1795		2194
1796	cf::object contr pay_amount pay_player map	2195	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2196	cf::object::player player
1798	cf::player peaceful	2197	cf::player peaceful
1799	cf::map trigger	2198	cf::map trigger
…		…
1884	#############################################################################	2283	#############################################################################
1885		2284
1886	=head2 EXTENSION DATABASE SUPPORT	2285	=head2 EXTENSION DATABASE SUPPORT
1887		2286
1888	Crossfire maintains a very simple database for extension use. It can	2287	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which	2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1890	excludes objects.	2289	convert to/from binary).
1891		2290
1892	The parameter C<$family> should best start with the name of the extension	2291	The parameter C<$family> should best start with the name of the extension
1893	using it, it should be unique.	2292	using it, it should be unique.
1894		2293
1895	=over 4	2294	=over 4
1896		2295
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key	2296	=item $value = cf::db_get $family => $key
1904		2297
1905	Returns a single value from the database	2298	Returns a single value from the database.
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911		2299
1912	=item cf::db_put $family => $key => $value	2300	=item cf::db_put $family => $key => $value
1913		2301
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you	2302	Stores the given C<$value> in the family.
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924		2303
1925	=cut	2304	=cut
1926		2305
1927	our $DB;	2306	our $DB;
1928		2307
1929	{	2308	sub db_init {
1930	my $path = cf::localdir . "/database.pst";	2309	unless ($DB) {
		2310	$DB = BDB::db_create $DB_ENV;
1931		2311
1932	sub db_load() {	2312	cf::sync_job {
1933	$DB = stat $path ? Storable::retrieve $path : { };	2313	eval {
1934	}	2314	$DB->set_flags (BDB::CHKSUM);
1935		2315
1936	my $pid;	2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1937		2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1938	sub db_save() {	2318	cf::cleanup "db_open(db): $!" if $!;
1939	waitpid $pid, 0 if $pid;	2319	};
1940	if (0 == ($pid = fork)) {	2320	cf::cleanup "db_open(db): $@" if $@;
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}	2321	};
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	2322	}
		2323	}
1958		2324
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {	2325	sub db_get($$) {
1965	@_ >= 2	2326	my $key = "$_[0]/$_[1]";
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		2327
		2328	cf::sync_job {
		2329	BDB::db_get $DB, undef, $key, my $data;
		2330
		2331	$! ? ()
		2332	: $data
		2333	}
		2334	}
		2335
1970	sub db_put($$;$) {	2336	sub db_put($$$) {
1971	if (@_ >= 3) {	2337	BDB::dbreq_pri 4;
1972	$DB->{$_[0]}{$_[1]} = $_[2];	2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1973	} else {	2339	}
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		2340
1979	cf::global->attach (	2341	=item cf::cache $id => [$paths...], $processversion => $process
1980	prio => 10000,	2342
1981	on_cleanup => sub {	2343	Generic caching function that returns the value of the resource $id,
1982	db_sync;	2344	caching and regenerating as required.
		2345
		2346	This function can block.
		2347
		2348	=cut
		2349
		2350	sub cache {
		2351	my ($id, $src, $processversion, $process) = @_;
		2352
		2353	my $meta =
		2354	join "\x00",
		2355	$processversion,
		2356	map {
		2357	aio_stat $_
		2358	and Carp::croak "$_: $!";
		2359
		2360	($_, (stat _)[7,9])
		2361	} @$src;
		2362
		2363	my $dbmeta = db_get cache => "$id/meta";
		2364	if ($dbmeta ne $meta) {
		2365	# changed, we may need to process
		2366
		2367	my @data;
		2368	my $md5;
		2369
		2370	for (0 .. $#$src) {
		2371	0 <= aio_load $src->[$_], $data[$_]
		2372	or Carp::croak "$src->[$_]: $!";
1983	},	2373	}
1984	);	2374
		2375	# if processing is expensive, check
		2376	# checksum first
		2377	if (1) {
		2378	$md5 =
		2379	join "\x00",
		2380	$processversion,
		2381	map {
		2382	Coro::cede;
		2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2384	} 0.. $#$src;
		2385
		2386
		2387	my $dbmd5 = db_get cache => "$id/md5";
		2388	if ($dbmd5 eq $md5) {
		2389	db_put cache => "$id/meta", $meta;
		2390
		2391	return db_get cache => "$id/data";
		2392	}
		2393	}
		2394
		2395	my $t1 = Time::HiRes::time;
		2396	my $data = $process->(\@data);
		2397	my $t2 = Time::HiRes::time;
		2398
		2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2400
		2401	db_put cache => "$id/data", $data;
		2402	db_put cache => "$id/md5" , $md5;
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return $data;
		2406	}
		2407
		2408	db_get cache => "$id/data"
1985	}	2409	}
		2410
		2411	=item fork_call { }, $args
		2412
		2413	Executes the given code block with the given arguments in a seperate
		2414	process, returning the results. Everything must be serialisable with
		2415	Coro::Storable. May, of course, block. Note that the executed sub may
		2416	never block itself or use any form of Event handling.
		2417
		2418	=cut
		2419
		2420	sub fork_call(&@) {
		2421	my ($cb, @args) = @_;
		2422
		2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2424	# or die "socketpair: $!";
		2425	pipe my $fh1, my $fh2
		2426	or die "pipe: $!";
		2427
		2428	if (my $pid = fork) {
		2429	close $fh2;
		2430
		2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2432	$res = Coro::Storable::thaw $res;
		2433
		2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2435
		2436	die $$res unless "ARRAY" eq ref $res;
		2437
		2438	return wantarray ? @$res : $res->[-1];
		2439	} else {
		2440	reset_signals;
		2441	local $SIG{__WARN__};
		2442	local $SIG{__DIE__};
		2443	eval {
		2444	close $fh1;
		2445
		2446	my @res = eval { $cb->(@args) };
		2447	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2448	};
		2449
		2450	warn $@ if $@;
		2451	_exit 0;
		2452	}
		2453	}
		2454
		2455
1986		2456
1987	#############################################################################	2457	#############################################################################
1988	# the server's main()	2458	# the server's init and main functions
		2459
		2460	sub load_facedata($) {
		2461	my ($path) = @_;
		2462
		2463	warn "loading facedata from $path\n";
		2464
		2465	my $facedata;
		2466	0 < aio_load $path, $facedata
		2467	or die "$path: $!";
		2468
		2469	$facedata = Coro::Storable::thaw $facedata;
		2470
		2471	$facedata->{version} == 2
		2472	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2473
		2474	{
		2475	my $faces = $facedata->{faceinfo};
		2476
		2477	while (my ($face, $info) = each %$faces) {
		2478	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2479	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2480	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2481	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2482	Coro::cede;
		2483	}
		2484
		2485	while (my ($face, $info) = each %$faces) {
		2486	next unless $info->{smooth};
		2487	my $idx = cf::face::find $face
		2488	or next;
		2489	if (my $smooth = cf::face::find $info->{smooth}) {
		2490	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2491	} else {
		2492	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2493	}
		2494	Coro::cede;
		2495	}
		2496	}
		2497
		2498	{
		2499	my $anims = $facedata->{animinfo};
		2500
		2501	while (my ($anim, $info) = each %$anims) {
		2502	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2503	Coro::cede;
		2504	}
		2505
		2506	cf::anim::invalidate_all; # d'oh
		2507	}
		2508
		2509	1
		2510	}
		2511
		2512	sub reload_regions {
		2513	load_resource_file "$MAPDIR/regions"
		2514	or die "unable to load regions file\n";
		2515	}
		2516
		2517	sub reload_facedata {
		2518	load_facedata "$DATADIR/facedata"
		2519	or die "unable to load facedata\n";
		2520	}
		2521
		2522	sub reload_archetypes {
		2523	load_resource_file "$DATADIR/archetypes"
		2524	or die "unable to load archetypes\n";
		2525	}
		2526
		2527	sub reload_treasures {
		2528	load_resource_file "$DATADIR/treasures"
		2529	or die "unable to load treasurelists\n";
		2530	}
		2531
		2532	sub reload_resources {
		2533	warn "reloading resource files...\n";
		2534
		2535	reload_regions;
		2536	reload_facedata;
		2537	reload_archetypes;
		2538	reload_treasures;
		2539
		2540	warn "finished reloading resource files\n";
		2541	}
		2542
		2543	sub init {
		2544	reload_resources;
		2545	}
1989		2546
1990	sub cfg_load {	2547	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2548	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2549	or return;
1993		2550
1994	local $/;	2551	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2552	*CFG = YAML::Syck::Load <$fh>;
1996		2553
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2554	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		2555
		2556	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2557	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2558
1999	if (exists $CFG{mlockall}) {	2559	if (exists $CFG{mlockall}) {
2000	eval {	2560	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	2561	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	2562	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	2563	};
2004	warn $@ if $@;	2564	warn $@ if $@;
2005	}	2565	}
2006	}	2566	}
2007		2567
2008	sub main {	2568	sub main {
2009	# we must not ever block the main coroutine	2569	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	2570	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2571	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	2572	(async {
2013	Event::one_event;	2573	Event::one_event;
2014	})->();	2574	})->prio (Coro::PRIO_MAX);
2015	};	2575	};
2016		2576
2017	cfg_load;	2577	cfg_load;
2018	db_load;	2578	db_init;
2019	load_extensions;	2579	load_extensions;
		2580
		2581	$TICK_WATCHER->start;
2020	Event::loop;	2582	Event::loop;
2021	}	2583	}
2022		2584
2023	#############################################################################	2585	#############################################################################
2024	# initialisation	2586	# initialisation and cleanup
2025		2587
		2588	# install some emergency cleanup handlers
		2589	BEGIN {
		2590	for my $signal (qw(INT HUP TERM)) {
		2591	Event->signal (
		2592	reentrant => 0,
		2593	data => WF_AUTOCANCEL,
		2594	signal => $signal,
		2595	prio => 0,
		2596	cb => sub {
		2597	cf::cleanup "SIG$signal";
		2598	},
		2599	);
		2600	}
		2601	}
		2602
		2603	sub emergency_save() {
		2604	my $freeze_guard = cf::freeze_mainloop;
		2605
		2606	warn "enter emergency perl save\n";
		2607
		2608	cf::sync_job {
		2609	# use a peculiar iteration method to avoid tripping on perl
		2610	# refcount bugs in for. also avoids problems with players
		2611	# and maps saved/destroyed asynchronously.
		2612	warn "begin emergency player save\n";
		2613	for my $login (keys %cf::PLAYER) {
		2614	my $pl = $cf::PLAYER{$login} or next;
		2615	$pl->valid or next;
		2616	$pl->save;
		2617	}
		2618	warn "end emergency player save\n";
		2619
		2620	warn "begin emergency map save\n";
		2621	for my $path (keys %cf::MAP) {
		2622	my $map = $cf::MAP{$path} or next;
		2623	$map->valid or next;
		2624	$map->save;
		2625	}
		2626	warn "end emergency map save\n";
		2627
		2628	warn "begin emergency database checkpoint\n";
		2629	BDB::db_env_txn_checkpoint $DB_ENV;
		2630	warn "end emergency database checkpoint\n";
		2631	};
		2632
		2633	warn "leave emergency perl save\n";
		2634	}
		2635
		2636	sub post_cleanup {
		2637	my ($make_core) = @_;
		2638
		2639	warn Carp::longmess "post_cleanup backtrace"
		2640	if $make_core;
		2641	}
		2642
2026	sub reload() {	2643	sub do_reload_perl() {
2027	# can/must only be called in main	2644	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	2645	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	2646	warn "can only reload from main coroutine";
2030	return;	2647	return;
2031	}	2648	}
2032		2649
2033	warn "reloading...";	2650	warn "reloading...";
2034		2651
2035	local $FREEZE = 1;	2652	warn "entering sync_job";
		2653
		2654	cf::sync_job {
		2655	cf::write_runtime; # external watchdog should not bark
2036	cf::emergency_save;	2656	cf::emergency_save;
		2657	cf::write_runtime; # external watchdog should not bark
2037		2658
2038	eval {	2659	warn "syncing database to disk";
		2660	BDB::db_env_txn_checkpoint $DB_ENV;
		2661
2039	# if anything goes wrong in here, we should simply crash as we already saved	2662	# if anything goes wrong in here, we should simply crash as we already saved
2040		2663
2041	# cancel all watchers	2664	warn "cancelling all WF_AUTOCANCEL watchers";
2042	for (Event::all_watchers) {	2665	for (Event::all_watchers) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	2666	$_->cancel if $_->data & WF_AUTOCANCEL;
2044	}	2667	}
2045		2668
		2669	warn "flushing outstanding aio requests";
		2670	for (;;) {
		2671	BDB::flush;
		2672	IO::AIO::flush;
		2673	Coro::cede;
		2674	last unless IO::AIO::nreqs || BDB::nreqs;
		2675	warn "iterate...";
		2676	}
		2677
		2678	++$RELOAD;
		2679
2046	# cancel all extension coros	2680	warn "cancelling all extension coros";
2047	$_->cancel for values %EXT_CORO;	2681	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	2682	%EXT_CORO = ();
2049		2683
2050	# unload all extensions	2684	warn "removing commands";
2051	for (@exts) {	2685	%COMMAND = ();
		2686
		2687	warn "removing ext commands";
		2688	%EXTCMD = ();
		2689
		2690	warn "unloading/nuking all extensions";
		2691	for my $pkg (@EXTS) {
2052	warn "unloading <$_>";	2692	warn "... unloading $pkg";
2053	unload_extension $_;	2693
		2694	if (my $cb = $pkg->can ("unload")) {
		2695	eval {
		2696	$cb->($pkg);
		2697	1
		2698	} or warn "$pkg unloaded, but with errors: $@";
2054	}	2699	}
2055		2700
		2701	warn "... nuking $pkg";
		2702	Symbol::delete_package $pkg;
		2703	}
		2704
2056	# unload all modules loaded from $LIBDIR	2705	warn "unloading all perl modules loaded from $LIBDIR";
2057	while (my ($k, $v) = each %INC) {	2706	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2707	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059		2708
2060	warn "removing <$k>";	2709	warn "... unloading $k";
2061	delete $INC{$k};	2710	delete $INC{$k};
2062		2711
2063	$k =~ s/\.pm$//;	2712	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;	2713	$k =~ s/\//::/g;
2065		2714
…		…
2068	}	2717	}
2069		2718
2070	Symbol::delete_package $k;	2719	Symbol::delete_package $k;
2071	}	2720	}
2072		2721
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	2722	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	2723	Symbol::delete_package "safe::$_"
2079	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2724	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080		2725
2081	# remove register_script_function callbacks
2082	# TODO
2083
2084	# unload cf.pm "a bit"	2726	warn "unloading cf.pm \"a bit\"";
2085	delete $INC{"cf.pm"};	2727	delete $INC{"cf.pm"};
		2728	delete $INC{"cf/pod.pm"};
2086		2729
2087	# don't, removes xs symbols, too,	2730	# don't, removes xs symbols, too,
2088	# and global variables created in xs	2731	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	2732	#Symbol::delete_package __PACKAGE__;
2090		2733
2091	# reload cf.pm	2734	warn "unload completed, starting to reload now";
		2735
2092	warn "reloading cf.pm";	2736	warn "reloading cf.pm";
2093	require cf;	2737	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2738	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095		2739
2096	# load config and database again	2740	warn "loading config and database again";
2097	cf::cfg_load;	2741	cf::cfg_load;
2098	cf::db_load;
2099		2742
2100	# load extensions
2101	warn "load extensions";	2743	warn "loading extensions";
2102	cf::load_extensions;	2744	cf::load_extensions;
2103		2745
2104	# reattach attachments to objects	2746	warn "reattaching attachments to objects/players";
2105	warn "reattach";	2747	_global_reattach; # objects, sockets
2106	_global_reattach;	2748	warn "reattaching attachments to maps";
2107	};	2749	reattach $_ for values %MAP;
		2750	warn "reattaching attachments to players";
		2751	reattach $_ for values %PLAYER;
2108		2752
2109	if ($@) {	2753	warn "leaving sync_job";
		2754
		2755	1
		2756	} or do {
2110	warn $@;	2757	warn $@;
2111	warn "error while reloading, exiting.";	2758	warn "error while reloading, exiting.";
2112	exit 1;	2759	exit 1;
2113	}	2760	};
2114		2761
2115	warn "reloaded successfully";	2762	warn "reloaded";
2116	};	2763	};
2117		2764
2118	#############################################################################	2765	our $RELOAD_WATCHER; # used only during reload
2119		2766
2120	unless ($LINK_MAP) {	2767	sub reload_perl() {
2121	$LINK_MAP = cf::map::new;	2768	# doing reload synchronously and two reloads happen back-to-back,
		2769	# coro crashes during coro_state_free->destroy here.
2122		2770
2123	$LINK_MAP->width (41);	2771	$RELOAD_WATCHER ||= Event->timer (
2124	$LINK_MAP->height (41);	2772	reentrant => 0,
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,	2773	after => 0,
		2774	data => WF_AUTOCANCEL,
2133	cb => sub {	2775	cb => sub {
2134	$_[0]->w->cancel;	2776	do_reload_perl;
2135		2777	undef $RELOAD_WATCHER;
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});	2778	},
2154		2779	);
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	2780	}
2160
2161	register "<global>", __PACKAGE__;
2162		2781
2163	register_command "reload" => sub {	2782	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	2783	my ($who, $arg) = @_;
2165		2784
2166	if ($who->flag (FLAG_WIZ)) {	2785	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	2786	$who->message ("reloading server.");
		2787	async { reload_perl };
2170	}	2788	}
2171	};	2789	};
2172		2790
2173	unshift @INC, $LIBDIR;	2791	unshift @INC, $LIBDIR;
		2792
		2793	my $bug_warning = 0;
		2794
		2795	our @WAIT_FOR_TICK;
		2796	our @WAIT_FOR_TICK_BEGIN;
		2797
		2798	sub wait_for_tick {
		2799	return unless $TICK_WATCHER->is_active;
		2800	return if $Coro::current == $Coro::main;
		2801
		2802	my $signal = new Coro::Signal;
		2803	push @WAIT_FOR_TICK, $signal;
		2804	$signal->wait;
		2805	}
		2806
		2807	sub wait_for_tick_begin {
		2808	return unless $TICK_WATCHER->is_active;
		2809	return if $Coro::current == $Coro::main;
		2810
		2811	my $signal = new Coro::Signal;
		2812	push @WAIT_FOR_TICK_BEGIN, $signal;
		2813	$signal->wait;
		2814	}
2174		2815
2175	$TICK_WATCHER = Event->timer (	2816	$TICK_WATCHER = Event->timer (
2176	reentrant => 0,	2817	reentrant => 0,
		2818	parked => 1,
2177	prio => 0,	2819	prio => 0,
2178	at => $NEXT_TICK || $TICK,	2820	at => $NEXT_TICK || $TICK,
2179	data => WF_AUTOCANCEL,	2821	data => WF_AUTOCANCEL,
2180	cb => sub {	2822	cb => sub {
2181	unless ($FREEZE) {	2823	if ($Coro::current != $Coro::main) {
		2824	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2825	unless ++$bug_warning > 10;
		2826	return;
		2827	}
		2828
		2829	$NOW = Event::time;
		2830
2182	cf::server_tick; # one server iteration	2831	cf::server_tick; # one server iteration
		2832
2183	$RUNTIME += $TICK;	2833	$RUNTIME += $TICK;
2184	}
2185
2186	$NEXT_TICK += $TICK;	2834	$NEXT_TICK += $TICK;
		2835
		2836	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2837	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2838	Coro::async_pool {
		2839	write_runtime
		2840	or warn "ERROR: unable to write runtime file: $!";
		2841	};
		2842	}
		2843
		2844	# my $AFTER = Event::time;
		2845	# warn $AFTER - $NOW;#d#
2187		2846
2188	# if we are delayed by four ticks or more, skip them all	2847	# if we are delayed by four ticks or more, skip them all
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2848	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2190		2849
2191	$TICK_WATCHER->at ($NEXT_TICK);	2850	$TICK_WATCHER->at ($NEXT_TICK);
2192	$TICK_WATCHER->start;	2851	$TICK_WATCHER->start;
		2852
		2853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2854	$sig->send;
		2855	}
		2856	while (my $sig = shift @WAIT_FOR_TICK) {
		2857	$sig->send;
		2858	}
		2859
		2860	_post_tick;
2193	},	2861	},
2194	);	2862	);
2195		2863
		2864	{
2196	IO::AIO::max_poll_time $TICK * 0.2;	2865	BDB::max_poll_time $TICK * 0.1;
2197		2866	$BDB_POLL_WATCHER = Event->io (
2198	Event->io (	2867	reentrant => 0,
2199	fd => IO::AIO::poll_fileno,	2868	fd => BDB::poll_fileno,
2200	poll => 'r',	2869	poll => 'r',
2201	prio => 5,	2870	prio => 0,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,	2871	data => WF_AUTOCANCEL,
2208	after => 0,	2872	cb => \&BDB::poll_cb,
2209	interval => 10,	2873	);
2210	cb => sub {	2874	BDB::min_parallel 8;
2211	(Coro::unblock_sub {	2875
2212	write_runtime	2876	BDB::set_sync_prepare {
2213	or warn "ERROR: unable to write runtime file: $!";	2877	my $status;
		2878	my $current = $Coro::current;
		2879	(
		2880	sub {
		2881	$status = $!;
		2882	$current->ready; undef $current;
		2883	},
		2884	sub {
		2885	Coro::schedule while defined $current;
		2886	$! = $status;
		2887	},
		2888	)
		2889	};
		2890
		2891	unless ($DB_ENV) {
		2892	$DB_ENV = BDB::db_env_create;
		2893
		2894	cf::sync_job {
		2895	eval {
		2896	BDB::db_env_open
		2897	$DB_ENV,
		2898	$BDBDIR,
		2899	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2900	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2901	0666;
		2902
		2903	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2904
		2905	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2906	$DB_ENV->set_lk_detect;
		2907	};
		2908
		2909	cf::cleanup "db_env_open(db): $@" if $@;
2214	})->();	2910	};
2215	},	2911	}
2216	);	2912	}
		2913
		2914	{
		2915	IO::AIO::min_parallel 8;
		2916
		2917	undef $Coro::AIO::WATCHER;
		2918	IO::AIO::max_poll_time $TICK * 0.1;
		2919	$AIO_POLL_WATCHER = Event->io (
		2920	reentrant => 0,
		2921	data => WF_AUTOCANCEL,
		2922	fd => IO::AIO::poll_fileno,
		2923	poll => 'r',
		2924	prio => 6,
		2925	cb => \&IO::AIO::poll_cb,
		2926	);
		2927	}
		2928
		2929	my $_log_backtrace;
		2930
		2931	sub _log_backtrace {
		2932	my ($msg, @addr) = @_;
		2933
		2934	$msg =~ s/\n//;
		2935
		2936	# limit the # of concurrent backtraces
		2937	if ($_log_backtrace < 2) {
		2938	++$_log_backtrace;
		2939	async {
		2940	my @bt = fork_call {
		2941	@addr = map { sprintf "%x", $_ } @addr;
		2942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2944	or die "addr2line: $!";
		2945
		2946	my @funcs;
		2947	my @res = <$fh>;
		2948	chomp for @res;
		2949	while (@res) {
		2950	my ($func, $line) = splice @res, 0, 2, ();
		2951	push @funcs, "[$func] $line";
		2952	}
		2953
		2954	@funcs
		2955	};
		2956
		2957	LOG llevInfo, "[ABT] $msg\n";
		2958	LOG llevInfo, "[ABT] $_\n" for @bt;
		2959	--$_log_backtrace;
		2960	};
		2961	} else {
		2962	LOG llevInfo, "[ABT] $msg\n";
		2963	LOG llevInfo, "[ABT] [suppressed]\n";
		2964	}
		2965	}
		2966
		2967	# load additional modules
		2968	use cf::pod;
2217		2969
2218	END { cf::emergency_save }	2970	END { cf::emergency_save }
2219		2971
2220	1	2972	1
2221		2973

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