ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.120 by root, Tue Jan 2 11:08:36 2007 UTC vs.
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	125	every server tick.
93		126
94	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	234	=item cf::lock_wait $string
209		235
210	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
211		237
212	=item my $lock = cf::lock_acquire $string	238	=item my $lock = cf::lock_acquire $string
213		239
214	Wait until the given lock is available and then acquires it and returns	240	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	242	for example when the coroutine gets canceled), the lock is automatically
217	returned.	243	returned.
218		244
219	Lock names should begin with a unique identifier (for example, find_map	245	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
221		251
222	=cut	252	=cut
223		253
224	our %LOCK;	254	our %LOCK;
225		255
…		…
239	# wait, to be sure we are not locked	269	# wait, to be sure we are not locked
240	lock_wait $key;	270	lock_wait $key;
241		271
242	$LOCK{$key} = [];	272	$LOCK{$key} = [];
243		273
244	cf::guard {	274	Coro::guard {
245	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
247	}	277	}
248	}	278	}
		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	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
249		305
250	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
251		307
252	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
253	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
…		…
267	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
269		325
270	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	327	# (but this is cancel-safe)
272	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
273		329
274	my $busy = 1;	330	my $busy = 1;
275	my @res;	331	my @res;
276		332
277	(Coro::async {	333	(async {
278	@res = eval { $job->() };	334	@res = eval { $job->() };
279	warn $@ if $@;	335	warn $@ if $@;
280	undef $busy;	336	undef $busy;
281	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
282		338
283	while ($busy) {	339	while ($busy) {
284	Coro::cede_notself;	340	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	341	}
287		342
288	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
289	} else {	344	} else {
290	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
291		346
292	$job->()	347	$job->()
293	}	348	}
294	}	349	}
295		350
296	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
297		352
298	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
300		355
301	=cut	356	=cut
302		357
303	sub coro(&) {	358	sub async_ext(&) {
304	my $cb = shift;	359	my $cb = shift;
305		360
306	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		362
313	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
315	});	365	});
316	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
317		367
318	$coro	368	$coro
319	}	369	}
320		370
321	sub write_runtime {	371	sub write_runtime {
322	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
323		373
		374	my $runtime = "$LOCALDIR/runtime";
		375
		376	warn "starting to write runtime...\n";#d#
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	377	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325	or return;	378	or return;
326		379
		380	my $value = $cf::RUNTIME + 90 + 10;
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	381	# 10 is the runtime save interval, for a monotonic clock
		382	# 60 allows for the watchdog to kill the server.
		383
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0	384	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;	385	and return;
330		386
		387	# always fsync - this file is important
331	aio_fsync $fh	388	aio_fsync $fh
332	and return;	389	and return;
333		390
334	close $fh	391	close $fh
335	or return;	392	or return;
336		393
337	aio_rename "$runtime~", $runtime	394	aio_rename "$runtime~", $runtime
338	and return;	395	and return;
339		396
		397	warn "... done writing runtime.\n";#d#
		398
340	1	399	1
341	}	400	}
342		401
		402	=item cf::datalog type => key => value, ...
		403
		404	Log a datalog packet of the given type with the given key-value pairs.
		405
		406	=cut
		407
		408	sub datalog($@) {
		409	my ($type, %kv) = @_;
		410	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		411	}
		412
343	=back	413	=back
344		414
345	=cut	415	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		416
467	#############################################################################	417	#############################################################################
468		418
469	=head2 ATTACHABLE OBJECTS	419	=head2 ATTACHABLE OBJECTS
470		420
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	546	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	547	our @CB_MAP = ();
598		548
599	my %attachment;	549	my %attachment;
600		550
		551	sub cf::attachable::thawer_merge {
		552	# simply override everything except _meta
		553	local $_[0]{_meta};
		554	%{$_[0]} = %{$_[1]};
		555	}
		556
601	sub _attach_cb($$$$) {	557	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	558	my ($registry, $event, $prio, $cb) = @_;
603		559
604	use sort 'stable';	560	use sort 'stable';
605		561
…		…
776	# object support	732	# object support
777		733
778	sub reattach {	734	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	735	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	736	my ($obj) = @_;
		737
		738	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		739
782	my $registry = $obj->registry;	740	my $registry = $obj->registry;
783		741
784	@$registry = ();	742	@$registry = ();
785		743
…		…
832	$filename, length $$rdata, scalar @$objs;	790	$filename, length $$rdata, scalar @$objs;
833		791
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	792	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	793	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	794	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	795	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	796	close $fh;
839		797
840	if (@$objs) {	798	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	799	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	800	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	801	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	802	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	803	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	804	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	805	aio_rename "$filename.pst~", "$filename.pst";
848	}	806	}
849	} else {	807	} else {
850	aio_unlink "$filename.pst";	808	aio_unlink "$filename.pst";
…		…
917	=cut	875	=cut
918		876
919	sub register_extcmd {	877	sub register_extcmd {
920	my ($name, $cb) = @_;	878	my ($name, $cb) = @_;
921		879
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	880	$EXTCMD{$name} = $cb;
926	}	881	}
927		882
928	cf::player->attach (	883	cf::player->attach (
929	on_command => sub {	884	on_command => sub {
930	my ($pl, $name, $params) = @_;	885	my ($pl, $name, $params) = @_;
…		…
943		898
944	my $msg = eval { from_json $buf };	899	my $msg = eval { from_json $buf };
945		900
946	if (ref $msg) {	901	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	902	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	903	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	904	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	905	}
951	}	906	}
952	} else {	907	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	908	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		910
956	cf::override;	911	cf::override;
957	},	912	},
958	);	913	);
959		914
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	915	sub load_extension {
967	my ($path) = @_;	916	my ($path) = @_;
968		917
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	918	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
970	my $base = $1;	919	my $base = $1;
971	my $pkg = $1;	920	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;	921	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";	922	$pkg = "ext::$pkg";
974		923
975	warn "loading '$path' into '$pkg'\n";	924	warn "... loading '$path' into '$pkg'\n";
976		925
977	open my $fh, "<:utf8", $path	926	open my $fh, "<:utf8", $path
978	or die "$path: $!";	927	or die "$path: $!";
979		928
980	my $source =	929	my $source =
981	"package $pkg; use strict; use utf8;\n"	930	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"	931	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })	932	. (do { local $/; <$fh> })
984	. "\n};\n1";	933	. "\n};\n1";
985		934
986	eval $source	935	unless (eval $source) {
987	or die $@ ? "$path: $@\n"	936	my $msg = $@ ? "$path: $@\n"
988	: "extension disabled.\n";	937	: "extension disabled.\n";
989		938	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
990	push @exts, $pkg;	939	warn $@;
991	$ext_pkg{$base} = $pkg;	940	warn "mandatory extension failed to load, exiting.\n";
992		941	exit 1;
993	# no strict 'refs';	942	}
994	# @{"$pkg\::ISA"} = ext::;	943	die $@;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	944	}
1009		945
1010	# remove commands	946	push @EXTS, $pkg;
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	947	}
1035		948
1036	sub load_extensions {	949	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {	950	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	951	next unless -r $ext;
…		…
1042	} or warn "$ext not loaded: $@";	955	} or warn "$ext not loaded: $@";
1043	}	956	}
1044	}	957	}
1045		958
1046	#############################################################################	959	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083		960
1084	=head2 CORE EXTENSIONS	961	=head2 CORE EXTENSIONS
1085		962
1086	Functions and methods that extend core crossfire objects.	963	Functions and methods that extend core crossfire objects.
1087		964
		965	=cut
		966
		967	package cf::player;
		968
		969	use Coro::AIO;
		970
1088	=head3 cf::player	971	=head3 cf::player
1089		972
1090	=over 4	973	=over 4
1091		974
1092	=item cf::player::exists $login	975	=item cf::player::find $login
1093		976
1094	Returns true when the given account exists.	977	Returns the given player object, loading it if necessary (might block).
1095		978
1096	=cut	979	=cut
1097		980
1098	sub cf::player::exists($) {	981	sub playerdir($) {
1099	cf::player::find $_[0]	982	"$PLAYERDIR/"
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	983	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1101	}	984	}
1102		985
		986	sub path($) {
		987	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		988
		989	(playerdir $login) . "/playerdata"
		990	}
		991
		992	sub find_active($) {
		993	$cf::PLAYER{$_[0]}
		994	and $cf::PLAYER{$_[0]}->active
		995	and $cf::PLAYER{$_[0]}
		996	}
		997
		998	sub exists($) {
		999	my ($login) = @_;
		1000
		1001	$cf::PLAYER{$login}
		1002	or cf::sync_job { !aio_stat path $login }
		1003	}
		1004
		1005	sub find($) {
		1006	return $cf::PLAYER{$_[0]} || do {
		1007	my $login = $_[0];
		1008
		1009	my $guard = cf::lock_acquire "user_find:$login";
		1010
		1011	$cf::PLAYER{$_[0]} || do {
		1012	# rename old playerfiles to new ones
		1013	#TODO: remove when no longer required
		1014	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1015	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1016	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1017	aio_unlink +(playerdir $login) . "/$login.pl";
		1018
		1019	my $pl = load_pl path $login
		1020	or return;
		1021	$cf::PLAYER{$login} = $pl
		1022	}
		1023	}
		1024	}
		1025
		1026	sub save($) {
		1027	my ($pl) = @_;
		1028
		1029	return if $pl->{deny_save};
		1030
		1031	my $path = path $pl;
		1032	my $guard = cf::lock_acquire "user_save:$path";
		1033
		1034	return if $pl->{deny_save};
		1035
		1036	aio_mkdir playerdir $pl, 0770;
		1037	$pl->{last_save} = $cf::RUNTIME;
		1038
		1039	$pl->save_pl ($path);
		1040	Coro::cede;
		1041	}
		1042
		1043	sub new($) {
		1044	my ($login) = @_;
		1045
		1046	my $self = create;
		1047
		1048	$self->ob->name ($login);
		1049	$self->{deny_save} = 1;
		1050
		1051	$cf::PLAYER{$login} = $self;
		1052
		1053	$self
		1054	}
		1055
		1056	=item $pl->quit_character
		1057
		1058	Nukes the player without looking back. If logged in, the connection will
		1059	be destroyed. May block for a long time.
		1060
		1061	=cut
		1062
		1063	sub quit_character {
		1064	my ($pl) = @_;
		1065
		1066	my $name = $pl->ob->name;
		1067
		1068	$pl->{deny_save} = 1;
		1069	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1070
		1071	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1072	$pl->deactivate;
		1073	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1074	$pl->ns->destroy if $pl->ns;
		1075
		1076	my $path = playerdir $pl;
		1077	my $temp = "$path~$cf::RUNTIME~deleting~";
		1078	aio_rename $path, $temp;
		1079	delete $cf::PLAYER{$pl->ob->name};
		1080	$pl->destroy;
		1081
		1082	my $prefix = qr<^~\Q$name\E/>;
		1083
		1084	# nuke player maps
		1085	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1086
		1087	IO::AIO::aio_rmtree $temp;
		1088	}
		1089
		1090	=item $pl->kick
		1091
		1092	Kicks a player out of the game. This destroys the connection.
		1093
		1094	=cut
		1095
		1096	sub kick {
		1097	my ($pl, $kicker) = @_;
		1098
		1099	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1100	$pl->killer ("kicked");
		1101	$pl->ns->destroy;
		1102	}
		1103
		1104	=item cf::player::list_logins
		1105
		1106	Returns am arrayref of all valid playernames in the system, can take a
		1107	while and may block, so not sync_job-capable, ever.
		1108
		1109	=cut
		1110
		1111	sub list_logins {
		1112	my $dirs = aio_readdir $PLAYERDIR
		1113	or return [];
		1114
		1115	my @logins;
		1116
		1117	for my $login (@$dirs) {
		1118	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1119	aio_read $fh, 0, 512, my $buf, 0 or next;
		1120	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1121
		1122	utf8::decode $login;
		1123	push @logins, $login;
		1124	}
		1125
		1126	\@logins
		1127	}
		1128
		1129	=item $player->maps
		1130
		1131	Returns an arrayref of map paths that are private for this
		1132	player. May block.
		1133
		1134	=cut
		1135
		1136	sub maps($) {
		1137	my ($pl) = @_;
		1138
		1139	$pl = ref $pl ? $pl->ob->name : $pl;
		1140
		1141	my $files = aio_readdir playerdir $pl
		1142	or return;
		1143
		1144	my @paths;
		1145
		1146	for (@$files) {
		1147	utf8::decode $_;
		1148	next if /\.(?:pl|pst)$/;
		1149	next unless /^$PATH_SEP/o;
		1150
		1151	push @paths, cf::map::normalise "~$pl/$_";
		1152	}
		1153
		1154	\@paths
		1155	}
		1156
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1157	=item $player->ext_reply ($msgid, %msg)
1104		1158
1105	Sends an ext reply to the player.	1159	Sends an ext reply to the player.
1106		1160
1107	=cut	1161	=cut
1108		1162
1109	sub cf::player::ext_reply($$$%) {	1163	sub ext_reply($$%) {
1110	my ($self, $id, %msg) = @_;	1164	my ($self, $id, %msg) = @_;
1111		1165
1112	$msg{msgid} = $id;	1166	$msg{msgid} = $id;
1113		1167
1114	$self->send ("ext " . to_json \%msg);	1168	$self->send ("ext " . cf::to_json \%msg);
		1169	}
		1170
		1171	=item $player->ext_event ($type, %msg)
		1172
		1173	Sends an ext event to the client.
		1174
		1175	=cut
		1176
		1177	sub ext_event($$%) {
		1178	my ($self, $type, %msg) = @_;
		1179
		1180	$self->ns->ext_event ($type, %msg);
		1181	}
		1182
		1183	=head3 cf::region
		1184
		1185	=over 4
		1186
		1187	=cut
		1188
		1189	package cf::region;
		1190
		1191	=item cf::region::find_by_path $path
		1192
		1193	Tries to decuce the probable region for a map knowing only its path.
		1194
		1195	=cut
		1196
		1197	sub find_by_path($) {
		1198	my ($path) = @_;
		1199
		1200	my ($match, $specificity);
		1201
		1202	for my $region (list) {
		1203	if ($region->match && $path =~ $region->match) {
		1204	($match, $specificity) = ($region, $region->specificity)
		1205	if $region->specificity > $specificity;
		1206	}
		1207	}
		1208
		1209	$match
1115	}	1210	}
1116		1211
1117	=back	1212	=back
1118
1119		1213
1120	=head3 cf::map	1214	=head3 cf::map
1121		1215
1122	=over 4	1216	=over 4
1123		1217
…		…
1126	package cf::map;	1220	package cf::map;
1127		1221
1128	use Fcntl;	1222	use Fcntl;
1129	use Coro::AIO;	1223	use Coro::AIO;
1130		1224
		1225	use overload
		1226	'""' => \&as_string,
		1227	fallback => 1;
		1228
1131	our $MAX_RESET = 7200;	1229	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1230	our $DEFAULT_RESET = 3000;
1133		1231
1134	sub generate_random_map {	1232	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1233	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1234	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1235	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1236	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1237	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1238	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1239	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1240	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1241	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1242	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1243	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1244	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1245	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1246	(cf::region::find $rmp->{region}), $rmp->{custom}
		1247	)
		1248	}
		1249
		1250	=item cf::map->register ($regex, $prio)
		1251
		1252	Register a handler for the map path matching the given regex at the
		1253	givne priority (higher is better, built-in handlers have priority 0, the
		1254	default).
		1255
		1256	=cut
		1257
		1258	sub register {
		1259	my (undef, $regex, $prio) = @_;
		1260	my $pkg = caller;
		1261
		1262	no strict;
		1263	push @{"$pkg\::ISA"}, __PACKAGE__;
		1264
		1265	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1266	}
		1267
		1268	# also paths starting with '/'
		1269	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1270
		1271	sub thawer_merge {
		1272	my ($self, $merge) = @_;
		1273
		1274	# we have to keep some variables in memory intact
		1275	local $self->{path};
		1276	local $self->{load_path};
		1277	local $self->{deny_save};
		1278	local $self->{deny_reset};
		1279
		1280	$self->SUPER::thawer_merge ($merge);
		1281	}
		1282
		1283	sub normalise {
		1284	my ($path, $base) = @_;
		1285
		1286	$path = "$path"; # make sure its a string
		1287
		1288	$path =~ s/\.map$//;
		1289
		1290	# map plan:
		1291	#
		1292	# /! non-realised random map exit (special hack!)
		1293	# {... are special paths that are not being touched
		1294	# ?xxx/... are special absolute paths
		1295	# ?random/... random maps
		1296	# /... normal maps
		1297	# ~user/... per-player map of a specific user
		1298
		1299	$path =~ s/$PATH_SEP/\//go;
		1300
		1301	# treat it as relative path if it starts with
		1302	# something that looks reasonable
		1303	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1304	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1305
		1306	$base =~ s{[^/]+/?$}{};
		1307	$path = "$base/$path";
		1308	}
		1309
		1310	for ($path) {
		1311	redo if s{//}{/};
		1312	redo if s{/\.?/}{/};
		1313	redo if s{/[^/]+/\.\./}{/};
		1314	}
		1315
		1316	$path
		1317	}
		1318
		1319	sub new_from_path {
		1320	my (undef, $path, $base) = @_;
		1321
		1322	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1323
		1324	$path = normalise $path, $base;
		1325
		1326	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1327	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1328	my $self = bless cf::map::new, $pkg;
		1329	$self->{path} = $path; $self->path ($path);
		1330	$self->init; # pass $1 etc.
		1331	return $self;
		1332	}
		1333	}
		1334
		1335	Carp::carp "unable to resolve path '$path' (base '$base').";
		1336	()
		1337	}
		1338
		1339	sub init {
		1340	my ($self) = @_;
		1341
		1342	$self
		1343	}
		1344
		1345	sub as_string {
		1346	my ($self) = @_;
		1347
		1348	"$self->{path}"
		1349	}
		1350
		1351	# the displayed name, this is a one way mapping
		1352	sub visible_name {
		1353	&as_string
		1354	}
		1355
		1356	# the original (read-only) location
		1357	sub load_path {
		1358	my ($self) = @_;
		1359
		1360	"$MAPDIR/$self->{path}.map"
		1361	}
		1362
		1363	# the temporary/swap location
		1364	sub save_path {
		1365	my ($self) = @_;
		1366
		1367	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1368	"$TMPDIR/$path.map"
		1369	}
		1370
		1371	# the unique path, undef == no special unique path
		1372	sub uniq_path {
		1373	my ($self) = @_;
		1374
		1375	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1376	"$UNIQUEDIR/$path"
1151	}	1377	}
1152		1378
1153	# and all this just because we cannot iterate over	1379	# and all this just because we cannot iterate over
1154	# all maps in C++...	1380	# all maps in C++...
1155	sub change_all_map_light {	1381	sub change_all_map_light {
1156	my ($change) = @_;	1382	my ($change) = @_;
1157		1383
1158	$_->change_map_light ($change) for values %cf::MAP;	1384	$_->change_map_light ($change)
		1385	for grep $_->outdoor, values %cf::MAP;
1159	}	1386	}
1160		1387
		1388	sub unlink_save {
		1389	my ($self) = @_;
		1390
		1391	utf8::encode (my $save = $self->save_path);
		1392	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1393	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1394	}
		1395
1161	sub try_load_header($) {	1396	sub load_header_from($) {
1162	my ($path) = @_;	1397	my ($self, $path) = @_;
1163		1398
1164	utf8::encode $path;	1399	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1400	#aio_open $path, O_RDONLY, 0
		1401	# or return;
		1402
		1403	$self->_load_header ($path)
1166	or return;	1404	or return;
1167		1405
1168	my $map = cf::map::new	1406	$self->{load_path} = $path;
		1407
		1408	1
		1409	}
		1410
		1411	sub load_header_orig {
		1412	my ($self) = @_;
		1413
		1414	$self->load_header_from ($self->load_path)
		1415	}
		1416
		1417	sub load_header_temp {
		1418	my ($self) = @_;
		1419
		1420	$self->load_header_from ($self->save_path)
		1421	}
		1422
		1423	sub prepare_temp {
		1424	my ($self) = @_;
		1425
		1426	$self->last_access ((delete $self->{last_access})
		1427	|| $cf::RUNTIME); #d#
		1428	# safety
		1429	$self->{instantiate_time} = $cf::RUNTIME
		1430	if $self->{instantiate_time} > $cf::RUNTIME;
		1431	}
		1432
		1433	sub prepare_orig {
		1434	my ($self) = @_;
		1435
		1436	$self->{load_original} = 1;
		1437	$self->{instantiate_time} = $cf::RUNTIME;
		1438	$self->last_access ($cf::RUNTIME);
		1439	$self->instantiate;
		1440	}
		1441
		1442	sub load_header {
		1443	my ($self) = @_;
		1444
		1445	if ($self->load_header_temp) {
		1446	$self->prepare_temp;
		1447	} else {
		1448	$self->load_header_orig
1169	or return;	1449	or return;
		1450	$self->prepare_orig;
		1451	}
1170		1452
1171	$map->load_header ($path)	1453	$self->default_region (cf::region::find_by_path $self->{path})
1172	or return;	1454	unless $self->default_region;
1173		1455
1174	$map->{load_path} = $path;	1456	1
1175
1176	$map
1177	}	1457	}
1178		1458
		1459	sub find;
1179	sub find_map {	1460	sub find {
1180	my ($path, $origin) = @_;	1461	my ($path, $origin) = @_;
1181		1462
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1463	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1464
1187	cf::lock_wait "map_find:$key";	1465	cf::lock_wait "map_find:$path";
1188		1466
1189	$cf::MAP{$key} || do {	1467	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1468	my $guard = cf::lock_acquire "map_find:$path";
1191		1469	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1470	or return;
1207		1471
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215	#Coro::Timer::sleep 1;#d#
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1472	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1473
1222	if ($map->should_reset) {	1474	$map->load_header
		1475	or return;
		1476
		1477	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1478	# doing this can freeze the server in a sync job, obviously
		1479	#$cf::WAIT_FOR_TICK->wait;
1223	$map->reset;	1480	$map->reset;
1224	$map = find_map $path;	1481	undef $guard;
		1482	return find $path;
1225	}	1483	}
1226		1484
1227	$cf::MAP{$key} = $map	1485	$cf::MAP{$path} = $map
1228	}	1486	}
1229	}	1487	}
		1488
		1489	sub pre_load { }
		1490	sub post_load { }
1230		1491
1231	sub load {	1492	sub load {
1232	my ($self) = @_;	1493	my ($self) = @_;
1233		1494
		1495	local $self->{deny_reset} = 1; # loading can take a long time
		1496
1234	my $path = $self->{path};	1497	my $path = $self->{path};
		1498
		1499	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1500	my $guard = cf::lock_acquire "map_load:$path";
1236		1501
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1502	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1503
1239	$self->in_memory (cf::MAP_LOADING);	1504	$self->in_memory (cf::MAP_LOADING);
1240		1505
1241	$self->alloc;	1506	$self->alloc;
		1507
		1508	$self->pre_load;
		1509	Coro::cede;
		1510
1242	$self->load_objects ($self->{load_path}, 1)	1511	$self->_load_objects ($self->{load_path}, 1)
1243	or return;	1512	or return;
1244		1513
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1514	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1515	if delete $self->{load_original};
1247		1516
1248	if (my $uniq = $path->uniq_path) {	1517	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1518	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1519	if (aio_open $uniq, O_RDONLY, 0) {
1251	$self->clear_unique_items;	1520	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1521	$self->_load_objects ($uniq, 0);
1253	}	1522	}
1254	}	1523	}
1255		1524
		1525	Coro::cede;
1256	# now do the right thing for maps	1526	# now do the right thing for maps
1257	$self->link_multipart_objects;	1527	$self->link_multipart_objects;
1258
1259	if ($self->{path}->is_style_map) {
1260	$self->{deny_save} = 1;
1261	$self->{deny_reset} = 1;
1262	} else {
1263	$self->fix_auto_apply;
1264	$self->decay_objects;
1265	$self->update_buttons;
1266	$self->set_darkness_map;
1267	$self->difficulty ($self->estimate_difficulty)	1528	$self->difficulty ($self->estimate_difficulty)
1268	unless $self->difficulty;	1529	unless $self->difficulty;
		1530	Coro::cede;
		1531
		1532	unless ($self->{deny_activate}) {
		1533	$self->decay_objects;
		1534	$self->fix_auto_apply;
		1535	$self->update_buttons;
		1536	Coro::cede;
		1537	$self->set_darkness_map;
		1538	Coro::cede;
1269	$self->activate;	1539	$self->activate;
1270	}	1540	}
1271		1541
1272	$self->in_memory (cf::MAP_IN_MEMORY);	1542	$self->in_memory (cf::MAP_IN_MEMORY);
1273	}	1543	}
1274		1544
1275	sub load_map_sync {	1545	$self->post_load;
		1546	}
		1547
		1548	sub customise_for {
		1549	my ($self, $ob) = @_;
		1550
		1551	return find "~" . $ob->name . "/" . $self->{path}
		1552	if $self->per_player;
		1553
		1554	$self
		1555	}
		1556
		1557	# find and load all maps in the 3x3 area around a map
		1558	sub load_diag {
		1559	my ($map) = @_;
		1560
		1561	my @diag; # diagonal neighbours
		1562
		1563	for (0 .. 3) {
		1564	my $neigh = $map->tile_path ($_)
		1565	or next;
		1566	$neigh = find $neigh, $map
		1567	or next;
		1568	$neigh->load;
		1569
		1570	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1571	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1572	}
		1573
		1574	for (@diag) {
		1575	my $neigh = find @$_
		1576	or next;
		1577	$neigh->load;
		1578	}
		1579	}
		1580
		1581	sub find_sync {
1276	my ($path, $origin) = @_;	1582	my ($path, $origin) = @_;
1277		1583
1278	#warn "load_map_sync<$path, $origin>\n";#d#	1584	cf::sync_job { find $path, $origin }
		1585	}
1279		1586
1280	cf::sync_job {	1587	sub do_load_sync {
1281	my $map = cf::map::find_map $path, $origin	1588	my ($map) = @_;
1282	or return;	1589
		1590	cf::sync_job { $map->load };
		1591	}
		1592
		1593	our %MAP_PREFETCH;
		1594	our $MAP_PREFETCHER = undef;
		1595
		1596	sub find_async {
		1597	my ($path, $origin) = @_;
		1598
		1599	$path = normalise $path, $origin && $origin->{path};
		1600
		1601	if (my $map = $cf::MAP{$path}) {
		1602	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1603	}
		1604
		1605	undef $MAP_PREFETCH{$path};
		1606	$MAP_PREFETCHER ||= cf::async {
		1607	while (%MAP_PREFETCH) {
		1608	for my $path (keys %MAP_PREFETCH) {
		1609	my $map = find $path
		1610	or next;
1283	$map->load;	1611	$map->load;
1284	$map	1612
		1613	delete $MAP_PREFETCH{$path};
		1614	}
		1615	}
		1616	undef $MAP_PREFETCHER;
1285	}	1617	};
		1618	$MAP_PREFETCHER->prio (6);
		1619
		1620	()
1286	}	1621	}
1287		1622
1288	sub save {	1623	sub save {
1289	my ($self) = @_;	1624	my ($self) = @_;
1290		1625
		1626	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1627
1291	$self->{last_save} = $cf::RUNTIME;	1628	$self->{last_save} = $cf::RUNTIME;
1292		1629
1293	return unless $self->dirty;	1630	return unless $self->dirty;
1294		1631
1295	my $save = $self->{path}->save_path; utf8::encode $save;	1632	my $save = $self->save_path; utf8::encode $save;
1296	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1633	my $uniq = $self->uniq_path; utf8::encode $uniq;
1297		1634
1298	$self->{load_path} = $save;	1635	$self->{load_path} = $save;
1299		1636
1300	return if $self->{deny_save};	1637	return if $self->{deny_save};
1301		1638
		1639	local $self->{last_access} = $self->last_access;#d#
		1640
		1641	cf::async {
		1642	$_->contr->save for $self->players;
		1643	};
		1644
1302	if ($uniq) {	1645	if ($uniq) {
1303	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1304	$self->save_objects ($uniq, cf::IO_UNIQUES);	1647	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1305	} else {	1648	} else {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1649	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1307	}	1650	}
1308	}	1651	}
1309		1652
1310	sub swap_out {	1653	sub swap_out {
1311	my ($self) = @_;	1654	my ($self) = @_;
		1655
		1656	# save first because save cedes
		1657	$self->save;
		1658
		1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1312		1660
1313	return if $self->players;	1661	return if $self->players;
1314	return if $self->in_memory != cf::MAP_IN_MEMORY;	1662	return if $self->in_memory != cf::MAP_IN_MEMORY;
1315	return if $self->{deny_save};	1663	return if $self->{deny_save};
1316		1664
1317	$self->save;
1318	$self->clear;	1665	$self->clear;
1319	$self->in_memory (cf::MAP_SWAPPED);	1666	$self->in_memory (cf::MAP_SWAPPED);
1320	}	1667	}
1321		1668
1322	sub reset_at {	1669	sub reset_at {
1323	my ($self) = @_;	1670	my ($self) = @_;
1324		1671
1325	# TODO: safety, remove and allow resettable per-player maps	1672	# TODO: safety, remove and allow resettable per-player maps
1326	return 1e99 if $self->{path}{user_rel};	1673	return 1e99 if $self->isa ("ext::map_per_player");#d#
1327	return 1e99 if $self->{deny_reset};	1674	return 1e99 if $self->{deny_reset};
1328		1675
1329	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1676	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1330	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1677	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1331		1678
…		…
1336	my ($self) = @_;	1683	my ($self) = @_;
1337		1684
1338	$self->reset_at <= $cf::RUNTIME	1685	$self->reset_at <= $cf::RUNTIME
1339	}	1686	}
1340		1687
1341	sub unlink_save {
1342	my ($self) = @_;
1343
1344	utf8::encode (my $save = $self->{path}->save_path);
1345	aioreq_pri 3; IO::AIO::aio_unlink $save;
1346	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1347	}
1348
1349	sub rename {
1350	my ($self, $new_path) = @_;
1351
1352	$self->unlink_save;
1353
1354	delete $cf::MAP{$self->path};
1355	$self->{path} = new cf::path $new_path;
1356	$self->path ($self->{path}->as_string);
1357	$cf::MAP{$self->path} = $self;
1358
1359	$self->save;
1360	}
1361
1362	sub reset {	1688	sub reset {
1363	my ($self) = @_;	1689	my ($self) = @_;
1364		1690
		1691	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1692
1365	return if $self->players;	1693	return if $self->players;
1366	return if $self->{path}{user_rel};#d#	1694	return if $self->isa ("ext::map_per_player");#d#
1367		1695
1368	warn "resetting map ", $self->path;#d#	1696	warn "resetting map ", $self->path;#d#
1369		1697
		1698	$self->in_memory (cf::MAP_SWAPPED);
		1699
		1700	# need to save uniques path
		1701	unless ($self->{deny_save}) {
		1702	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1703
		1704	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1705	if $uniq;
		1706	}
		1707
1370	delete $cf::MAP{$self->path};	1708	delete $cf::MAP{$self->path};
		1709
		1710	$self->clear;
1371		1711
1372	$_->clear_links_to ($self) for values %cf::MAP;	1712	$_->clear_links_to ($self) for values %cf::MAP;
1373		1713
1374	$self->unlink_save;	1714	$self->unlink_save;
1375	$self->destroy;	1715	$self->destroy;
…		…
1378	my $nuke_counter = "aaaa";	1718	my $nuke_counter = "aaaa";
1379		1719
1380	sub nuke {	1720	sub nuke {
1381	my ($self) = @_;	1721	my ($self) = @_;
1382		1722
		1723	delete $cf::MAP{$self->path};
		1724
		1725	$self->unlink_save;
		1726
		1727	bless $self, "cf::map";
		1728	delete $self->{deny_reset};
1383	$self->{deny_save} = 1;	1729	$self->{deny_save} = 1;
1384	$self->reset_timeout (1);	1730	$self->reset_timeout (1);
1385	$self->rename ("{nuke}/" . ($nuke_counter++));	1731	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1732
		1733	$cf::MAP{$self->path} = $self;
		1734
1386	$self->reset; # polite request, might not happen	1735	$self->reset; # polite request, might not happen
1387	}	1736	}
1388		1737
1389	sub customise_for {	1738	=item cf::map::unique_maps
1390	my ($map, $ob) = @_;
1391		1739
1392	if ($map->per_player) {	1740	Returns an arrayref of paths of all shared maps that have
1393	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1741	instantiated unique items. May block.
1394	}
1395		1742
1396	$map	1743	=cut
1397	}
1398		1744
1399	sub emergency_save {	1745	sub unique_maps() {
1400	local $cf::FREEZE = 1;	1746	my $files = aio_readdir $UNIQUEDIR
		1747	or return;
1401		1748
1402	warn "enter emergency map save\n";	1749	my @paths;
1403		1750
1404	cf::sync_job {	1751	for (@$files) {
1405	warn "begin emergency map save\n";	1752	utf8::decode $_;
1406	$_->save for values %cf::MAP;	1753	next if /\.pst$/;
		1754	next unless /^$PATH_SEP/o;
		1755
		1756	push @paths, cf::map::normalise $_;
1407	};	1757	}
1408		1758
1409	warn "end emergency map save\n";	1759	\@paths
1410	}	1760	}
1411		1761
1412	package cf;	1762	package cf;
1413		1763
1414	=back	1764	=back
1415		1765
		1766	=head3 cf::object
		1767
		1768	=cut
		1769
		1770	package cf::object;
		1771
		1772	=over 4
		1773
		1774	=item $ob->inv_recursive
		1775
		1776	Returns the inventory of the object _and_ their inventories, recursively.
		1777
		1778	=cut
		1779
		1780	sub inv_recursive_;
		1781	sub inv_recursive_ {
		1782	map { $_, inv_recursive_ $_->inv } @_
		1783	}
		1784
		1785	sub inv_recursive {
		1786	inv_recursive_ inv $_[0]
		1787	}
		1788
		1789	package cf;
		1790
		1791	=back
1416		1792
1417	=head3 cf::object::player	1793	=head3 cf::object::player
1418		1794
1419	=over 4	1795	=over 4
1420		1796
…		…
1460		1836
1461	=item $player_object->enter_link	1837	=item $player_object->enter_link
1462		1838
1463	Freezes the player and moves him/her to a special map (C<{link}>).	1839	Freezes the player and moves him/her to a special map (C<{link}>).
1464		1840
1465	The player should be reaosnably safe there for short amounts of time. You	1841	The player should be reasonably safe there for short amounts of time. You
1466	I<MUST> call C<leave_link> as soon as possible, though.	1842	I<MUST> call C<leave_link> as soon as possible, though.
1467		1843
		1844	Will never block.
		1845
1468	=item $player_object->leave_link ($map, $x, $y)	1846	=item $player_object->leave_link ($map, $x, $y)
1469		1847
1470	Moves the player out of the specila link map onto the given map. If the	1848	Moves the player out of the special C<{link}> map onto the specified
1471	map is not valid (or omitted), the player will be moved back to the	1849	map. If the map is not valid (or omitted), the player will be moved back
1472	location he/she was before the call to C<enter_link>, or, if that fails,	1850	to the location he/she was before the call to C<enter_link>, or, if that
1473	to the emergency map position.	1851	fails, to the emergency map position.
1474		1852
1475	Might block.	1853	Might block.
1476		1854
1477	=cut	1855	=cut
		1856
		1857	sub link_map {
		1858	unless ($LINK_MAP) {
		1859	$LINK_MAP = cf::map::find "{link}"
		1860	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1861	$LINK_MAP->load;
		1862	}
		1863
		1864	$LINK_MAP
		1865	}
1478		1866
1479	sub cf::object::player::enter_link {	1867	sub cf::object::player::enter_link {
1480	my ($self) = @_;	1868	my ($self) = @_;
1481		1869
1482	$self->deactivate_recursive;	1870	$self->deactivate_recursive;
1483		1871
1484	return if $self->map == $LINK_MAP;	1872	return if UNIVERSAL::isa $self->map, "ext::map_link";
1485		1873
1486	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1874	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1487	if $self->map;	1875	if $self->map;
1488		1876
1489	$self->enter_map ($LINK_MAP, 20, 20);	1877	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1490	}	1878	}
1491		1879
1492	sub cf::object::player::leave_link {	1880	sub cf::object::player::leave_link {
1493	my ($self, $map, $x, $y) = @_;	1881	my ($self, $map, $x, $y) = @_;
1494		1882
1495	my $link_pos = delete $self->{_link_pos};	1883	my $link_pos = delete $self->{_link_pos};
1496		1884
1497	unless ($map) {	1885	unless ($map) {
1498	# restore original map position	1886	# restore original map position
1499	($map, $x, $y) = @{ $link_pos || [] };	1887	($map, $x, $y) = @{ $link_pos || [] };
1500	$map = cf::map::find_map $map;	1888	$map = cf::map::find $map;
1501		1889
1502	unless ($map) {	1890	unless ($map) {
1503	($map, $x, $y) = @$EMERGENCY_POSITION;	1891	($map, $x, $y) = @$EMERGENCY_POSITION;
1504	$map = cf::map::find_map $map	1892	$map = cf::map::find $map
1505	or die "FATAL: cannot load emergency map\n";	1893	or die "FATAL: cannot load emergency map\n";
1506	}	1894	}
1507	}	1895	}
1508		1896
1509	($x, $y) = (-1, -1)	1897	($x, $y) = (-1, -1)
…		…
1512	# use -1 or undef as default coordinates, not 0, 0	1900	# use -1 or undef as default coordinates, not 0, 0
1513	($x, $y) = ($map->enter_x, $map->enter_y)	1901	($x, $y) = ($map->enter_x, $map->enter_y)
1514	if $x <=0 && $y <= 0;	1902	if $x <=0 && $y <= 0;
1515		1903
1516	$map->load;	1904	$map->load;
		1905	$map->load_diag;
1517		1906
		1907	return unless $self->contr->active;
1518	$self->activate_recursive;	1908	$self->activate_recursive;
		1909
		1910	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1519	$self->enter_map ($map, $x, $y);	1911	$self->enter_map ($map, $x, $y);
1520	}	1912	}
1521		1913
1522	cf::player->attach (	1914	cf::player->attach (
1523	on_logout => sub {	1915	on_logout => sub {
…		…
1535		1927
1536	# try to abort aborted map switching on player login :)	1928	# try to abort aborted map switching on player login :)
1537	# should happen only on crashes	1929	# should happen only on crashes
1538	if ($pl->ob->{_link_pos}) {	1930	if ($pl->ob->{_link_pos}) {
1539	$pl->ob->enter_link;	1931	$pl->ob->enter_link;
1540	Coro::async {	1932	(async {
		1933	$pl->ob->reply (undef,
		1934	"There was an internal problem at your last logout, "
		1935	. "the server will try to bring you to your intended destination in a second.",
		1936	cf::NDI_RED);
1541	# we need this sleep as the login has a concurrent enter_exit running	1937	# we need this sleep as the login has a concurrent enter_exit running
1542	# and this sleep increases chances of the player not ending up in scorn	1938	# and this sleep increases chances of the player not ending up in scorn
1543	Coro::Timer::sleep 1;	1939	Coro::Timer::sleep 1;
1544	$pl->ob->leave_link;	1940	$pl->ob->leave_link;
1545	};	1941	})->prio (2);
1546	}	1942	}
1547	},	1943	},
1548	);	1944	);
1549		1945
1550	=item $player_object->goto_map ($path, $x, $y)	1946	=item $player_object->goto ($path, $x, $y)
1551		1947
1552	=cut	1948	=cut
1553		1949
1554	sub cf::object::player::goto_map {	1950	sub cf::object::player::goto {
1555	my ($self, $path, $x, $y) = @_;	1951	my ($self, $path, $x, $y) = @_;
1556		1952
1557	$self->enter_link;	1953	$self->enter_link;
1558		1954
1559	(Coro::async {	1955	(async {
1560	$path = new cf::path $path;	1956	my $map = eval {
1561
1562	my $map = cf::map::find_map $path->as_string;	1957	my $map = cf::map::find $path;
1563	$map = $map->customise_for ($self) if $map;	1958	$map = $map->customise_for ($self) if $map;
1564		1959	$map
1565	# warn "entering ", $map->path, " at ($x, $y)\n"	1960	} or
1566	# if $map;
1567
1568	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1961	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1569		1962
1570	$self->leave_link ($map, $x, $y);	1963	$self->leave_link ($map, $x, $y);
1571	})->prio (1);	1964	})->prio (1);
1572	}	1965	}
1573		1966
…		…
1577		1970
1578	sub parse_random_map_params {	1971	sub parse_random_map_params {
1579	my ($spec) = @_;	1972	my ($spec) = @_;
1580		1973
1581	my $rmp = { # defaults	1974	my $rmp = { # defaults
1582	xsize => 10,	1975	xsize => (cf::rndm 15, 40),
1583	ysize => 10,	1976	ysize => (cf::rndm 15, 40),
		1977	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1978	#layout => string,
1584	};	1979	};
1585		1980
1586	for (split /\n/, $spec) {	1981	for (split /\n/, $spec) {
1587	my ($k, $v) = split /\s+/, $_, 2;	1982	my ($k, $v) = split /\s+/, $_, 2;
1588		1983
…		…
1592	$rmp	1987	$rmp
1593	}	1988	}
1594		1989
1595	sub prepare_random_map {	1990	sub prepare_random_map {
1596	my ($exit) = @_;	1991	my ($exit) = @_;
		1992
		1993	my $guard = cf::lock_acquire "exit_prepare:$exit";
1597		1994
1598	# all this does is basically replace the /! path by	1995	# all this does is basically replace the /! path by
1599	# a new random map path (?random/...) with a seed	1996	# a new random map path (?random/...) with a seed
1600	# that depends on the exit object	1997	# that depends on the exit object
1601		1998
1602	my $rmp = parse_random_map_params $exit->msg;	1999	my $rmp = parse_random_map_params $exit->msg;
1603		2000
1604	if ($exit->map) {	2001	if ($exit->map) {
1605	$rmp->{region} = $exit->map->region_name;	2002	$rmp->{region} = $exit->region->name;
1606	$rmp->{origin_map} = $exit->map->path;	2003	$rmp->{origin_map} = $exit->map->path;
1607	$rmp->{origin_x} = $exit->x;	2004	$rmp->{origin_x} = $exit->x;
1608	$rmp->{origin_y} = $exit->y;	2005	$rmp->{origin_y} = $exit->y;
1609	}	2006	}
1610		2007
1611	$rmp->{random_seed} ||= $exit->random_seed;	2008	$rmp->{random_seed} ||= $exit->random_seed;
1612		2009
1613	my $data = cf::to_json $rmp;	2010	my $data = cf::to_json $rmp;
1614	my $md5 = Digest::MD5::md5_hex $data;	2011	my $md5 = Digest::MD5::md5_hex $data;
		2012	my $meta = "$RANDOMDIR/$md5.meta";
1615		2013
1616	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2014	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1617	aio_write $fh, 0, (length $data), $data, 0;	2015	aio_write $fh, 0, (length $data), $data, 0;
		2016	undef $fh;
		2017	aio_rename "$meta~", $meta;
1618		2018
1619	$exit->slaying ("?random/$md5");	2019	$exit->slaying ("?random/$md5");
1620	$exit->msg (undef);	2020	$exit->msg (undef);
1621	}	2021	}
1622	}	2022	}
…		…
1624	sub cf::object::player::enter_exit {	2024	sub cf::object::player::enter_exit {
1625	my ($self, $exit) = @_;	2025	my ($self, $exit) = @_;
1626		2026
1627	return unless $self->type == cf::PLAYER;	2027	return unless $self->type == cf::PLAYER;
1628		2028
		2029	if ($exit->slaying eq "/!") {
		2030	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2031	# the problem is that $exit might not survive long enough
		2032	# so it needs to be done right now, right here
		2033	cf::sync_job { prepare_random_map $exit };
		2034	}
		2035
		2036	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2037	my $hp = $exit->stats->hp;
		2038	my $sp = $exit->stats->sp;
		2039
1629	$self->enter_link;	2040	$self->enter_link;
1630		2041
1631	(Coro::async {	2042	(async {
		2043	$self->deactivate_recursive; # just to be sure
1632	unless (eval {	2044	unless (eval {
1633		2045	$self->goto ($slaying, $hp, $sp);
1634	prepare_random_map $exit
1635	if $exit->slaying eq "/!";
1636
1637	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1638	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1639		2046
1640	1;	2047	1;
1641	}) {	2048	}) {
1642	$self->message ("Something went wrong deep within the crossfire server. "	2049	$self->message ("Something went wrong deep within the crossfire server. "
1643	. "I'll try to bring you back to the map you were before. "	2050	. "I'll try to bring you back to the map you were before. "
1644	. "Please report this to the dungeon master",	2051	. "Please report this to the dungeon master!",
1645	cf::NDI_UNIQUE | cf::NDI_RED);	2052	cf::NDI_UNIQUE | cf::NDI_RED);
1646		2053
1647	warn "ERROR in enter_exit: $@";	2054	warn "ERROR in enter_exit: $@";
1648	$self->leave_link;	2055	$self->leave_link;
1649	}	2056	}
1650	})->prio (1);	2057	})->prio (1);
…		…
1663		2070
1664	sub cf::client::send_drawinfo {	2071	sub cf::client::send_drawinfo {
1665	my ($self, $text, $flags) = @_;	2072	my ($self, $text, $flags) = @_;
1666		2073
1667	utf8::encode $text;	2074	utf8::encode $text;
1668	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2075	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1669	}	2076	}
1670		2077
		2078	=item $client->ext_event ($type, %msg)
		2079
		2080	Sends an exti event to the client.
		2081
		2082	=cut
		2083
		2084	sub cf::client::ext_event($$%) {
		2085	my ($self, $type, %msg) = @_;
		2086
		2087	$msg{msgtype} = "event_$type";
		2088	$self->send_packet ("ext " . cf::to_json \%msg);
		2089	}
1671		2090
1672	=item $success = $client->query ($flags, "text", \&cb)	2091	=item $success = $client->query ($flags, "text", \&cb)
1673		2092
1674	Queues a query to the client, calling the given callback with	2093	Queues a query to the client, calling the given callback with
1675	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2094	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1700	on_reply => sub {	2119	on_reply => sub {
1701	my ($ns, $msg) = @_;	2120	my ($ns, $msg) = @_;
1702		2121
1703	# this weird shuffling is so that direct followup queries	2122	# this weird shuffling is so that direct followup queries
1704	# get handled first	2123	# get handled first
1705	my $queue = delete $ns->{query_queue};	2124	my $queue = delete $ns->{query_queue}
		2125	or return; # be conservative, not sure how that can happen, but we saw a crash here
1706		2126
1707	(shift @$queue)->[1]->($msg);	2127	(shift @$queue)->[1]->($msg);
		2128	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1708		2129
1709	push @{ $ns->{query_queue} }, @$queue;	2130	push @{ $ns->{query_queue} }, @$queue;
1710		2131
1711	if (@{ $ns->{query_queue} } == @$queue) {	2132	if (@{ $ns->{query_queue} } == @$queue) {
1712	if (@$queue) {	2133	if (@$queue) {
…		…
1716	}	2137	}
1717	}	2138	}
1718	},	2139	},
1719	);	2140	);
1720		2141
1721	=item $client->coro (\&cb)	2142	=item $client->async (\&cb)
1722		2143
1723	Create a new coroutine, running the specified callback. The coroutine will	2144	Create a new coroutine, running the specified callback. The coroutine will
1724	be automatically cancelled when the client gets destroyed (e.g. on logout,	2145	be automatically cancelled when the client gets destroyed (e.g. on logout,
1725	or loss of connection).	2146	or loss of connection).
1726		2147
1727	=cut	2148	=cut
1728		2149
1729	sub cf::client::coro {	2150	sub cf::client::async {
1730	my ($self, $cb) = @_;	2151	my ($self, $cb) = @_;
1731		2152
1732	my $coro; $coro = async {	2153	my $coro = &Coro::async ($cb);
1733	eval {
1734	$cb->();
1735	};
1736	warn $@ if $@;
1737	};
1738		2154
1739	$coro->on_destroy (sub {	2155	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2156	delete $self->{_coro}{$coro+0};
1741	});	2157	});
1742		2158
…		…
1775		2191
1776	# here we export the classes and methods available to script code	2192	# here we export the classes and methods available to script code
1777		2193
1778	=pod	2194	=pod
1779		2195
1780	The following fucntions and emthods are available within a safe environment:	2196	The following functions and methods are available within a safe environment:
1781		2197
1782	cf::object contr pay_amount pay_player map	2198	cf::object contr pay_amount pay_player map
1783	cf::object::player player	2199	cf::object::player player
1784	cf::player peaceful	2200	cf::player peaceful
1785	cf::map trigger	2201	cf::map trigger
…		…
1870	#############################################################################	2286	#############################################################################
1871		2287
1872	=head2 EXTENSION DATABASE SUPPORT	2288	=head2 EXTENSION DATABASE SUPPORT
1873		2289
1874	Crossfire maintains a very simple database for extension use. It can	2290	Crossfire maintains a very simple database for extension use. It can
1875	currently store anything that can be serialised using Storable, which	2291	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1876	excludes objects.	2292	convert to/from binary).
1877		2293
1878	The parameter C<$family> should best start with the name of the extension	2294	The parameter C<$family> should best start with the name of the extension
1879	using it, it should be unique.	2295	using it, it should be unique.
1880		2296
1881	=over 4	2297	=over 4
1882		2298
1883	=item $hashref = cf::db_get $family
1884
1885	Return a hashref for use by the extension C<$family>, which can be
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888
1889	=item $value = cf::db_get $family => $key	2299	=item $value = cf::db_get $family => $key
1890		2300
1891	Returns a single value from the database	2301	Returns a single value from the database.
1892
1893	=item cf::db_put $family => $hashref
1894
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897		2302
1898	=item cf::db_put $family => $key => $value	2303	=item cf::db_put $family => $key => $value
1899		2304
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you	2305	Stores the given C<$value> in the family.
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910		2306
1911	=cut	2307	=cut
1912		2308
1913	our $DB;	2309	our $DB;
1914		2310
1915	{	2311	sub db_init {
1916	my $path = cf::localdir . "/database.pst";	2312	unless ($DB) {
		2313	$DB = BDB::db_create $DB_ENV;
1917		2314
1918	sub db_load() {	2315	cf::sync_job {
1919	warn "loading database $path\n";#d# remove later	2316	eval {
1920	$DB = stat $path ? Storable::retrieve $path : { };	2317	$DB->set_flags (BDB::CHKSUM);
1921	}
1922		2318
1923	my $pid;	2319	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1924		2320	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1925	sub db_save() {	2321	cf::cleanup "db_open(db): $!" if $!;
1926	warn "saving database $path\n";#d# remove later	2322	};
1927	waitpid $pid, 0 if $pid;	2323	cf::cleanup "db_open(db): $@" if $@;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}	2324	};
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	2325	}
		2326	}
1946		2327
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}
1951
1952	sub db_get($;$) {	2328	sub db_get($$) {
1953	@_ >= 2	2329	my $key = "$_[0]/$_[1]";
1954	? $DB->{$_[0]}{$_[1]}
1955	: ($DB->{$_[0]} ||= { })
1956	}
1957		2330
		2331	cf::sync_job {
		2332	BDB::db_get $DB, undef, $key, my $data;
		2333
		2334	$! ? ()
		2335	: $data
		2336	}
		2337	}
		2338
1958	sub db_put($$;$) {	2339	sub db_put($$$) {
1959	if (@_ >= 3) {	2340	BDB::dbreq_pri 4;
1960	$DB->{$_[0]}{$_[1]} = $_[2];	2341	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1961	} else {	2342	}
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966		2343
1967	cf::global->attach (	2344	=item cf::cache $id => [$paths...], $processversion => $process
1968	prio => 10000,	2345
1969	on_cleanup => sub {	2346	Generic caching function that returns the value of the resource $id,
1970	db_sync;	2347	caching and regenerating as required.
		2348
		2349	This function can block.
		2350
		2351	=cut
		2352
		2353	sub cache {
		2354	my ($id, $src, $processversion, $process) = @_;
		2355
		2356	my $meta =
		2357	join "\x00",
		2358	$processversion,
		2359	map {
		2360	aio_stat $_
		2361	and Carp::croak "$_: $!";
		2362
		2363	($_, (stat _)[7,9])
		2364	} @$src;
		2365
		2366	my $dbmeta = db_get cache => "$id/meta";
		2367	if ($dbmeta ne $meta) {
		2368	# changed, we may need to process
		2369
		2370	my @data;
		2371	my $md5;
		2372
		2373	for (0 .. $#$src) {
		2374	0 <= aio_load $src->[$_], $data[$_]
		2375	or Carp::croak "$src->[$_]: $!";
1971	},	2376	}
1972	);	2377
		2378	# if processing is expensive, check
		2379	# checksum first
		2380	if (1) {
		2381	$md5 =
		2382	join "\x00",
		2383	$processversion,
		2384	map {
		2385	Coro::cede;
		2386	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2387	} 0.. $#$src;
		2388
		2389
		2390	my $dbmd5 = db_get cache => "$id/md5";
		2391	if ($dbmd5 eq $md5) {
		2392	db_put cache => "$id/meta", $meta;
		2393
		2394	return db_get cache => "$id/data";
		2395	}
		2396	}
		2397
		2398	my $t1 = Time::HiRes::time;
		2399	my $data = $process->(\@data);
		2400	my $t2 = Time::HiRes::time;
		2401
		2402	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2403
		2404	db_put cache => "$id/data", $data;
		2405	db_put cache => "$id/md5" , $md5;
		2406	db_put cache => "$id/meta", $meta;
		2407
		2408	return $data;
		2409	}
		2410
		2411	db_get cache => "$id/data"
1973	}	2412	}
		2413
		2414	=item fork_call { }, $args
		2415
		2416	Executes the given code block with the given arguments in a seperate
		2417	process, returning the results. Everything must be serialisable with
		2418	Coro::Storable. May, of course, block. Note that the executed sub may
		2419	never block itself or use any form of Event handling.
		2420
		2421	=cut
		2422
		2423	sub fork_call(&@) {
		2424	my ($cb, @args) = @_;
		2425
		2426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2427	# or die "socketpair: $!";
		2428	pipe my $fh1, my $fh2
		2429	or die "pipe: $!";
		2430
		2431	if (my $pid = fork) {
		2432	close $fh2;
		2433
		2434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2435	$res = Coro::Storable::thaw $res;
		2436
		2437	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2438
		2439	die $$res unless "ARRAY" eq ref $res;
		2440
		2441	return wantarray ? @$res : $res->[-1];
		2442	} else {
		2443	reset_signals;
		2444	local $SIG{__WARN__};
		2445	local $SIG{__DIE__};
		2446	eval {
		2447	close $fh1;
		2448
		2449	my @res = eval { $cb->(@args) };
		2450	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2451	};
		2452
		2453	warn $@ if $@;
		2454	_exit 0;
		2455	}
		2456	}
		2457
		2458
1974		2459
1975	#############################################################################	2460	#############################################################################
1976	# the server's main()	2461	# the server's init and main functions
		2462
		2463	sub load_facedata($) {
		2464	my ($path) = @_;
		2465
		2466	warn "loading facedata from $path\n";
		2467
		2468	my $facedata;
		2469	0 < aio_load $path, $facedata
		2470	or die "$path: $!";
		2471
		2472	$facedata = Coro::Storable::thaw $facedata;
		2473
		2474	$facedata->{version} == 2
		2475	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2476
		2477	{
		2478	my $faces = $facedata->{faceinfo};
		2479
		2480	while (my ($face, $info) = each %$faces) {
		2481	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2482	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2483	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2484	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2485	Coro::cede;
		2486	}
		2487
		2488	while (my ($face, $info) = each %$faces) {
		2489	next unless $info->{smooth};
		2490	my $idx = cf::face::find $face
		2491	or next;
		2492	if (my $smooth = cf::face::find $info->{smooth}) {
		2493	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2494	} else {
		2495	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2496	}
		2497	Coro::cede;
		2498	}
		2499	}
		2500
		2501	{
		2502	my $anims = $facedata->{animinfo};
		2503
		2504	while (my ($anim, $info) = each %$anims) {
		2505	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2506	Coro::cede;
		2507	}
		2508
		2509	cf::anim::invalidate_all; # d'oh
		2510	}
		2511
		2512	1
		2513	}
		2514
		2515	sub reload_regions {
		2516	load_resource_file "$MAPDIR/regions"
		2517	or die "unable to load regions file\n";
		2518	}
		2519
		2520	sub reload_facedata {
		2521	load_facedata "$DATADIR/facedata"
		2522	or die "unable to load facedata\n";
		2523	}
		2524
		2525	sub reload_archetypes {
		2526	load_resource_file "$DATADIR/archetypes"
		2527	or die "unable to load archetypes\n";
		2528	}
		2529
		2530	sub reload_treasures {
		2531	load_resource_file "$DATADIR/treasures"
		2532	or die "unable to load treasurelists\n";
		2533	}
		2534
		2535	sub reload_resources {
		2536	warn "reloading resource files...\n";
		2537
		2538	reload_regions;
		2539	reload_facedata;
		2540	reload_archetypes;
		2541	reload_treasures;
		2542
		2543	warn "finished reloading resource files\n";
		2544	}
		2545
		2546	sub init {
		2547	reload_resources;
		2548	}
1977		2549
1978	sub cfg_load {	2550	sub cfg_load {
1979	open my $fh, "<:utf8", cf::confdir . "/config"	2551	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	2552	or return;
1981		2553
1982	local $/;	2554	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	2555	*CFG = YAML::Syck::Load <$fh>;
		2556
		2557	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2558
		2559	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2560	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2561
		2562	if (exists $CFG{mlockall}) {
		2563	eval {
		2564	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2565	and die "WARNING: m(un)lockall failed: $!\n";
		2566	};
		2567	warn $@ if $@;
		2568	}
1984	}	2569	}
1985		2570
1986	sub main {	2571	sub main {
1987	# we must not ever block the main coroutine	2572	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	2573	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2574	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	2575	(async {
1991	Event::one_event;	2576	Event::one_event;
1992	})->();	2577	})->prio (Coro::PRIO_MAX);
1993	};	2578	};
1994		2579
1995	cfg_load;	2580	cfg_load;
1996	db_load;	2581	db_init;
1997	load_extensions;	2582	load_extensions;
		2583
		2584	$TICK_WATCHER->start;
1998	Event::loop;	2585	Event::loop;
1999	}	2586	}
2000		2587
2001	#############################################################################	2588	#############################################################################
2002	# initialisation	2589	# initialisation and cleanup
2003		2590
		2591	# install some emergency cleanup handlers
		2592	BEGIN {
		2593	for my $signal (qw(INT HUP TERM)) {
		2594	Event->signal (
		2595	reentrant => 0,
		2596	data => WF_AUTOCANCEL,
		2597	signal => $signal,
		2598	prio => 0,
		2599	cb => sub {
		2600	cf::cleanup "SIG$signal";
		2601	},
		2602	);
		2603	}
		2604	}
		2605
		2606	sub emergency_save() {
		2607	my $freeze_guard = cf::freeze_mainloop;
		2608
		2609	warn "enter emergency perl save\n";
		2610
		2611	cf::sync_job {
		2612	# use a peculiar iteration method to avoid tripping on perl
		2613	# refcount bugs in for. also avoids problems with players
		2614	# and maps saved/destroyed asynchronously.
		2615	warn "begin emergency player save\n";
		2616	for my $login (keys %cf::PLAYER) {
		2617	my $pl = $cf::PLAYER{$login} or next;
		2618	$pl->valid or next;
		2619	$pl->save;
		2620	}
		2621	warn "end emergency player save\n";
		2622
		2623	warn "begin emergency map save\n";
		2624	for my $path (keys %cf::MAP) {
		2625	my $map = $cf::MAP{$path} or next;
		2626	$map->valid or next;
		2627	$map->save;
		2628	}
		2629	warn "end emergency map save\n";
		2630
		2631	warn "begin emergency database checkpoint\n";
		2632	BDB::db_env_txn_checkpoint $DB_ENV;
		2633	warn "end emergency database checkpoint\n";
		2634	};
		2635
		2636	warn "leave emergency perl save\n";
		2637	}
		2638
		2639	sub post_cleanup {
		2640	my ($make_core) = @_;
		2641
		2642	warn Carp::longmess "post_cleanup backtrace"
		2643	if $make_core;
		2644	}
		2645
2004	sub reload() {	2646	sub do_reload_perl() {
2005	# can/must only be called in main	2647	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	2648	if ($Coro::current != $Coro::main) {
2007	warn "can only reload from main coroutine\n";	2649	warn "can only reload from main coroutine";
2008	return;	2650	return;
2009	}	2651	}
2010		2652
2011	warn "reloading...";	2653	warn "reloading...";
2012		2654
2013	local $FREEZE = 1;	2655	warn "entering sync_job";
		2656
		2657	cf::sync_job {
		2658	cf::write_runtime; # external watchdog should not bark
2014	cf::emergency_save;	2659	cf::emergency_save;
		2660	cf::write_runtime; # external watchdog should not bark
2015		2661
2016	eval {	2662	warn "syncing database to disk";
		2663	BDB::db_env_txn_checkpoint $DB_ENV;
		2664
2017	# if anything goes wrong in here, we should simply crash as we already saved	2665	# if anything goes wrong in here, we should simply crash as we already saved
2018		2666
2019	# cancel all watchers	2667	warn "cancelling all WF_AUTOCANCEL watchers";
2020	for (Event::all_watchers) {	2668	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;	2669	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}	2670	}
2023		2671
		2672	warn "flushing outstanding aio requests";
		2673	for (;;) {
		2674	BDB::flush;
		2675	IO::AIO::flush;
		2676	Coro::cede;
		2677	last unless IO::AIO::nreqs || BDB::nreqs;
		2678	warn "iterate...";
		2679	}
		2680
		2681	++$RELOAD;
		2682
2024	# cancel all extension coros	2683	warn "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	2684	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	2685	%EXT_CORO = ();
2027		2686
2028	# unload all extensions	2687	warn "removing commands";
2029	for (@exts) {	2688	%COMMAND = ();
		2689
		2690	warn "removing ext commands";
		2691	%EXTCMD = ();
		2692
		2693	warn "unloading/nuking all extensions";
		2694	for my $pkg (@EXTS) {
2030	warn "unloading <$_>";	2695	warn "... unloading $pkg";
2031	unload_extension $_;	2696
		2697	if (my $cb = $pkg->can ("unload")) {
		2698	eval {
		2699	$cb->($pkg);
		2700	1
		2701	} or warn "$pkg unloaded, but with errors: $@";
2032	}	2702	}
2033		2703
		2704	warn "... nuking $pkg";
		2705	Symbol::delete_package $pkg;
		2706	}
		2707
2034	# unload all modules loaded from $LIBDIR	2708	warn "unloading all perl modules loaded from $LIBDIR";
2035	while (my ($k, $v) = each %INC) {	2709	while (my ($k, $v) = each %INC) {
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2710	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037		2711
2038	warn "removing <$k>";	2712	warn "... unloading $k";
2039	delete $INC{$k};	2713	delete $INC{$k};
2040		2714
2041	$k =~ s/\.pm$//;	2715	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;	2716	$k =~ s/\//::/g;
2043		2717
…		…
2046	}	2720	}
2047		2721
2048	Symbol::delete_package $k;	2722	Symbol::delete_package $k;
2049	}	2723	}
2050		2724
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	2725	warn "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	2726	Symbol::delete_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2727	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		2728
2059	# remove register_script_function callbacks
2060	# TODO
2061
2062	# unload cf.pm "a bit"	2729	warn "unloading cf.pm \"a bit\"";
2063	delete $INC{"cf.pm"};	2730	delete $INC{"cf.pm"};
		2731	delete $INC{"cf/pod.pm"};
2064		2732
2065	# don't, removes xs symbols, too,	2733	# don't, removes xs symbols, too,
2066	# and global variables created in xs	2734	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	2735	#Symbol::delete_package __PACKAGE__;
2068		2736
2069	# reload cf.pm	2737	warn "unload completed, starting to reload now";
		2738
2070	warn "reloading cf.pm";	2739	warn "reloading cf.pm";
2071	require cf;	2740	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2741	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073		2742
2074	# load config and database again	2743	warn "loading config and database again";
2075	cf::cfg_load;	2744	cf::cfg_load;
2076	cf::db_load;
2077		2745
2078	# load extensions
2079	warn "load extensions";	2746	warn "loading extensions";
2080	cf::load_extensions;	2747	cf::load_extensions;
2081		2748
2082	# reattach attachments to objects	2749	warn "reattaching attachments to objects/players";
2083	warn "reattach";	2750	_global_reattach; # objects, sockets
2084	_global_reattach;	2751	warn "reattaching attachments to maps";
2085	};	2752	reattach $_ for values %MAP;
		2753	warn "reattaching attachments to players";
		2754	reattach $_ for values %PLAYER;
2086		2755
2087	if ($@) {	2756	warn "leaving sync_job";
		2757
		2758	1
		2759	} or do {
2088	warn $@;	2760	warn $@;
2089	warn "error while reloading, exiting.";	2761	warn "error while reloading, exiting.";
2090	exit 1;	2762	exit 1;
2091	}	2763	};
2092		2764
2093	warn "reloaded successfully";	2765	warn "reloaded";
2094	};	2766	};
2095		2767
2096	#############################################################################	2768	our $RELOAD_WATCHER; # used only during reload
2097		2769
2098	unless ($LINK_MAP) {	2770	sub reload_perl() {
2099	$LINK_MAP = cf::map::new;	2771	# doing reload synchronously and two reloads happen back-to-back,
		2772	# coro crashes during coro_state_free->destroy here.
2100		2773
2101	$LINK_MAP->width (41);	2774	$RELOAD_WATCHER ||= Event->timer (
2102	$LINK_MAP->height (41);	2775	reentrant => 0,
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,	2776	after => 0,
		2777	data => WF_AUTOCANCEL,
2111	cb => sub {	2778	cb => sub {
2112	$_[0]->w->cancel;	2779	do_reload_perl;
2113		2780	undef $RELOAD_WATCHER;
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});	2781	},
2132		2782	);
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	2783	}
2138
2139	register "<global>", __PACKAGE__;
2140		2784
2141	register_command "reload" => sub {	2785	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	2786	my ($who, $arg) = @_;
2143		2787
2144	if ($who->flag (FLAG_WIZ)) {	2788	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	2789	$who->message ("reloading server.");
		2790	async { reload_perl };
2148	}	2791	}
2149	};	2792	};
2150		2793
2151	unshift @INC, $LIBDIR;	2794	unshift @INC, $LIBDIR;
		2795
		2796	my $bug_warning = 0;
		2797
		2798	our @WAIT_FOR_TICK;
		2799	our @WAIT_FOR_TICK_BEGIN;
		2800
		2801	sub wait_for_tick {
		2802	return unless $TICK_WATCHER->is_active;
		2803	return if $Coro::current == $Coro::main;
		2804
		2805	my $signal = new Coro::Signal;
		2806	push @WAIT_FOR_TICK, $signal;
		2807	$signal->wait;
		2808	}
		2809
		2810	sub wait_for_tick_begin {
		2811	return unless $TICK_WATCHER->is_active;
		2812	return if $Coro::current == $Coro::main;
		2813
		2814	my $signal = new Coro::Signal;
		2815	push @WAIT_FOR_TICK_BEGIN, $signal;
		2816	$signal->wait;
		2817	}
2152		2818
2153	$TICK_WATCHER = Event->timer (	2819	$TICK_WATCHER = Event->timer (
2154	reentrant => 0,	2820	reentrant => 0,
		2821	parked => 1,
2155	prio => 0,	2822	prio => 0,
2156	at => $NEXT_TICK || $TICK,	2823	at => $NEXT_TICK || $TICK,
2157	data => WF_AUTOCANCEL,	2824	data => WF_AUTOCANCEL,
2158	cb => sub {	2825	cb => sub {
2159	unless ($FREEZE) {	2826	if ($Coro::current != $Coro::main) {
		2827	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2828	unless ++$bug_warning > 10;
		2829	return;
		2830	}
		2831
		2832	$NOW = Event::time;
		2833
2160	cf::server_tick; # one server iteration	2834	cf::server_tick; # one server iteration
		2835
2161	$RUNTIME += $TICK;	2836	$RUNTIME += $TICK;
2162	}
2163
2164	$NEXT_TICK += $TICK;	2837	$NEXT_TICK += $TICK;
		2838
		2839	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2840	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2841	Coro::async_pool {
		2842	write_runtime
		2843	or warn "ERROR: unable to write runtime file: $!";
		2844	};
		2845	}
		2846
		2847	# my $AFTER = Event::time;
		2848	# warn $AFTER - $NOW;#d#
2165		2849
2166	# if we are delayed by four ticks or more, skip them all	2850	# if we are delayed by four ticks or more, skip them all
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2851	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2168		2852
2169	$TICK_WATCHER->at ($NEXT_TICK);	2853	$TICK_WATCHER->at ($NEXT_TICK);
2170	$TICK_WATCHER->start;	2854	$TICK_WATCHER->start;
		2855
		2856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2857	$sig->send;
		2858	}
		2859	while (my $sig = shift @WAIT_FOR_TICK) {
		2860	$sig->send;
		2861	}
		2862
		2863	_post_tick;
2171	},	2864	},
2172	);	2865	);
2173		2866
		2867	{
2174	IO::AIO::max_poll_time $TICK * 0.2;	2868	BDB::max_poll_time $TICK * 0.1;
2175		2869	$BDB_POLL_WATCHER = Event->io (
2176	Event->io (	2870	reentrant => 0,
2177	fd => IO::AIO::poll_fileno,	2871	fd => BDB::poll_fileno,
2178	poll => 'r',	2872	poll => 'r',
2179	prio => 5,	2873	prio => 0,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,	2874	data => WF_AUTOCANCEL,
2186	after => 0,	2875	cb => \&BDB::poll_cb,
2187	interval => 10,	2876	);
2188	cb => sub {	2877	BDB::min_parallel 8;
2189	(Coro::unblock_sub {	2878
2190	write_runtime	2879	BDB::set_sync_prepare {
2191	or warn "ERROR: unable to write runtime file: $!";	2880	my $status;
		2881	my $current = $Coro::current;
		2882	(
		2883	sub {
		2884	$status = $!;
		2885	$current->ready; undef $current;
		2886	},
		2887	sub {
		2888	Coro::schedule while defined $current;
		2889	$! = $status;
		2890	},
		2891	)
		2892	};
		2893
		2894	unless ($DB_ENV) {
		2895	$DB_ENV = BDB::db_env_create;
		2896
		2897	cf::sync_job {
		2898	eval {
		2899	BDB::db_env_open
		2900	$DB_ENV,
		2901	$BDBDIR,
		2902	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2903	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2904	0666;
		2905
		2906	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2907
		2908	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2909	$DB_ENV->set_lk_detect;
		2910	};
		2911
		2912	cf::cleanup "db_env_open(db): $@" if $@;
2192	})->();	2913	};
2193	},	2914	}
2194	);	2915	}
		2916
		2917	{
		2918	IO::AIO::min_parallel 8;
		2919
		2920	undef $Coro::AIO::WATCHER;
		2921	IO::AIO::max_poll_time $TICK * 0.1;
		2922	$AIO_POLL_WATCHER = Event->io (
		2923	reentrant => 0,
		2924	data => WF_AUTOCANCEL,
		2925	fd => IO::AIO::poll_fileno,
		2926	poll => 'r',
		2927	prio => 6,
		2928	cb => \&IO::AIO::poll_cb,
		2929	);
		2930	}
		2931
		2932	my $_log_backtrace;
		2933
		2934	sub _log_backtrace {
		2935	my ($msg, @addr) = @_;
		2936
		2937	$msg =~ s/\n//;
		2938
		2939	# limit the # of concurrent backtraces
		2940	if ($_log_backtrace < 2) {
		2941	++$_log_backtrace;
		2942	async {
		2943	my @bt = fork_call {
		2944	@addr = map { sprintf "%x", $_ } @addr;
		2945	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2946	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2947	or die "addr2line: $!";
		2948
		2949	my @funcs;
		2950	my @res = <$fh>;
		2951	chomp for @res;
		2952	while (@res) {
		2953	my ($func, $line) = splice @res, 0, 2, ();
		2954	push @funcs, "[$func] $line";
		2955	}
		2956
		2957	@funcs
		2958	};
		2959
		2960	LOG llevInfo, "[ABT] $msg\n";
		2961	LOG llevInfo, "[ABT] $_\n" for @bt;
		2962	--$_log_backtrace;
		2963	};
		2964	} else {
		2965	LOG llevInfo, "[ABT] $msg\n";
		2966	LOG llevInfo, "[ABT] [suppressed]\n";
		2967	}
		2968	}
		2969
		2970	# load additional modules
		2971	use cf::pod;
		2972
		2973	END { cf::emergency_save }
2195		2974
2196	1	2975	1
2197		2976

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines