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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (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
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
77		115
78	#############################################################################	116	#############################################################################
79		117
80	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
81		119
…		…
88	=item $cf::RUNTIME	126	=item $cf::RUNTIME
89		127
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	129	every server tick.
92		130
93	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		134
95	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
97		139
98	=item $cf::NOW	140	=item $cf::NOW
99		141
100	The time of the last (current) server tick.	142	The time of the last (current) server tick.
101		143
102	=item $cf::TICK	144	=item $cf::TICK
103		145
104	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
105		157
106	=item %cf::CFG	158	=item %cf::CFG
107		159
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
110		168
111	=back	169	=back
112		170
113	=cut	171	=cut
114		172
115	BEGIN {	173	BEGIN {
116	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	175	my $msg = join "", @_;
118	utf8::encode $msg;
119		176
120	$msg .= "\n"	177	$msg .= "\n"
121	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
122		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
124	};	184	};
125	}	185	}
126		186
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		206
147	$Event::DIED = sub {	207	$Event::DIED = sub {
148	warn "error in event callback: @_";	208	warn "error in event callback: @_";
149	};	209	};
150		210
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
156		212
157	=over 4	213	=over 4
158		214
159	=cut	215	=item dumpval $ref
160		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
162		239
163	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
164		241
165	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
166		243
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
175		245
176	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
177		247
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184
185	=item my $guard = cf::guard { BLOCK }
186
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206
207	=item cf::lock_wait $string	248	=item cf::lock_wait $string
208		249
209	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
210		251
211	=item my $lock = cf::lock_acquire $string	252	=item my $lock = cf::lock_acquire $string
212		253
213	Wait until the given lock is available and then acquires it and returns	254	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	256	for example when the coroutine gets canceled), the lock is automatically
216	returned.	257	returned.
217		258
218	Lock names should begin with a unique identifier (for example, find_map	259	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	260	uses map_find and cf::map::load uses map_load).
		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
220		265
221	=cut	266	=cut
222		267
223	our %LOCK;	268	our %LOCK;
224		269
…		…
238	# wait, to be sure we are not locked	283	# wait, to be sure we are not locked
239	lock_wait $key;	284	lock_wait $key;
240		285
241	$LOCK{$key} = [];	286	$LOCK{$key} = [];
242		287
243	cf::guard {	288	Coro::guard {
244	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
246	}	291	}
247	}	292	}
248		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
		300	sub freeze_mainloop {
		301	return unless $TICK_WATCHER->is_active;
		302
		303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
		306	$TICK_WATCHER->stop;
		307	$guard
		308	}
		309
249	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
250		311
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	312	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
253		315
254	=cut	316	=cut
255		317
256	sub async(&) {	318	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		319
265	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
266		321
267	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
268	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
277		332
278	sub sync_job(&) {	333	sub sync_job(&) {
279	my ($job) = @_;	334	my ($job) = @_;
280		335
281	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
282	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
284		341
285	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	343	# (but this is cancel-safe)
287	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
288		345
289	my $busy = 1;	346	my $busy = 1;
290	my @res;	347	my @res;
291		348
292	(Coro::async {	349	(async {
293	@res = eval { $job->() };	350	@res = eval { $job->() };
294	warn $@ if $@;	351	warn $@ if $@;
295	undef $busy;	352	undef $busy;
296	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
297		354
298	while ($busy) {	355	while ($busy) {
299	Coro::cede_notself;	356	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	357	}
		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
302		365
303	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
304	} else {	367	} else {
305	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
306		369
307	$job->()	370	$job->()
308	}	371	}
309	}	372	}
310		373
311	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
312		375
313	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
315		378
316	=cut	379	=cut
317		380
318	sub coro(&) {	381	sub async_ext(&) {
319	my $cb = shift;	382	my $cb = shift;
320		383
321	my $coro = &cf::async ($cb);	384	my $coro = &Coro::async ($cb);
322		385
323	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
325	});	388	});
326	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
327		390
328	$coro	391	$coro
329	}	392	}
330		393
331	sub write_runtime {	394	sub write_runtime {
332	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
333		405
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	407	or return;
336		408
		409	my $value = $cf::RUNTIME + 90 + 10;
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	414	and return;
340		415
		416	# always fsync - this file is important
341	aio_fsync $fh	417	aio_fsync $fh
342	and return;	418	and return;
343		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
344	close $fh	423	close $fh
345	or return;	424	or return;
346		425
347	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
348	and return;	427	and return;
349		428
		429	warn "runtime file written.\n";#d#
		430
350	1	431	1
351	}	432	}
352		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
353	=back	445	=back
354		446
355	=cut	447	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		448
477	#############################################################################	449	#############################################################################
478		450
479	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
480		452
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	579	our @CB_MAP = ();
608		580
609	my %attachment;	581	my %attachment;
610		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
611	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
613		591
614	use sort 'stable';	592	use sort 'stable';
615		593
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
650		628
651	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		633
656	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	635	my $pkg = shift @arg;
658		636
659	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
700	if (ref $_[0]) {	678	if (ref $_[0]) {
701	_object_attach @_;	679	_object_attach @_;
702	} else {	680	} else {
703	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
704	}	682	}
		683	_recalc_want;
705	};	684	};
706		685
707	# all those should be optimised	686	# all those should be optimised
708	sub cf::attachable::detach {	687	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
713	reattach ($obj);	692	reattach ($obj);
714	} else {	693	} else {
715	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
716	}	695	}
		696	_recalc_want;
717	};	697	};
718		698
719	sub cf::attachable::attached {	699	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
721		701
…		…
786	# object support	766	# object support
787		767
788	sub reattach {	768	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		773
792	my $registry = $obj->registry;	774	my $registry = $obj->registry;
793		775
794	@$registry = ();	776	@$registry = ();
795		777
…		…
842	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
843		825
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	830	close $fh;
849		831
850	if (@$objs) {	832	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	838	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
858	}	840	}
859	} else {	841	} else {
860	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
927	=cut	909	=cut
928		910
929	sub register_extcmd {	911	sub register_extcmd {
930	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
931		913
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
936	}	915	}
937		916
938	cf::player->attach (	917	cf::player->attach (
939	on_command => sub {	918	on_command => sub {
940	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
953		932
954	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
955		934
956	if (ref $msg) {	935	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	939	}
961	}	940	}
962	} else {	941	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		944
966	cf::override;	945	cf::override;
967	},	946	},
968	);	947	);
969		948
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	949	sub load_extension {
977	my ($path) = @_;	950	my ($path) = @_;
978		951
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	953	my $base = $1;
981	my $pkg = $1;	954	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
984		957
985	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
986		959
987	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
988	or die "$path: $!";	961	or die "$path: $!";
989		962
990	my $source =	963	my $source =
991	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
994	. "\n};\n1";	967	. "\n};\n1";
995		968
996	eval $source	969	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	971	: "extension disabled.\n";
999		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	973	warn $@;
1001	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
1002		975	exit 1;
1003	# no strict 'refs';	976	}
1004	# @{"$pkg\::ISA"} = ext::;	977	die $@;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	978	}
1019		979
1020	# remove commands	980	push @EXTS, $pkg;
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	981	}
1045		982
1046	sub load_extensions {	983	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	985	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1053	}	990	}
1054	}	991	}
1055		992
1056	#############################################################################	993	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093		994
1094	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1095		996
1096	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1097		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1098	=head3 cf::player	1005	=head3 cf::player
1099		1006
1100	=over 4	1007	=over 4
1101		1008
1102	=item cf::player::exists $login	1009	=item cf::player::find $login
1103		1010
1104	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1105		1012
1106	=cut	1013	=cut
1107		1014
1108	sub cf::player::exists($) {	1015	sub playerdir($) {
1109	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1018	}
1112		1019
		1020	sub path($) {
		1021	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1022
		1023	(playerdir $login) . "/playerdata"
		1024	}
		1025
		1026	sub find_active($) {
		1027	$cf::PLAYER{$_[0]}
		1028	and $cf::PLAYER{$_[0]}->active
		1029	and $cf::PLAYER{$_[0]}
		1030	}
		1031
		1032	sub exists($) {
		1033	my ($login) = @_;
		1034
		1035	$cf::PLAYER{$login}
		1036	or cf::sync_job { !aio_stat path $login }
		1037	}
		1038
		1039	sub find($) {
		1040	return $cf::PLAYER{$_[0]} || do {
		1041	my $login = $_[0];
		1042
		1043	my $guard = cf::lock_acquire "user_find:$login";
		1044
		1045	$cf::PLAYER{$_[0]} || do {
		1046	# rename old playerfiles to new ones
		1047	#TODO: remove when no longer required
		1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1051	aio_unlink +(playerdir $login) . "/$login.pl";
		1052
		1053	my $pl = load_pl path $login
		1054	or return;
		1055	$cf::PLAYER{$login} = $pl
		1056	}
		1057	}
		1058	}
		1059
		1060	sub save($) {
		1061	my ($pl) = @_;
		1062
		1063	return if $pl->{deny_save};
		1064
		1065	my $path = path $pl;
		1066	my $guard = cf::lock_acquire "user_save:$path";
		1067
		1068	return if $pl->{deny_save};
		1069
		1070	aio_mkdir playerdir $pl, 0770;
		1071	$pl->{last_save} = $cf::RUNTIME;
		1072
		1073	$pl->save_pl ($path);
		1074	Coro::cede;
		1075	}
		1076
		1077	sub new($) {
		1078	my ($login) = @_;
		1079
		1080	my $self = create;
		1081
		1082	$self->ob->name ($login);
		1083	$self->{deny_save} = 1;
		1084
		1085	$cf::PLAYER{$login} = $self;
		1086
		1087	$self
		1088	}
		1089
		1090	=item $pl->quit_character
		1091
		1092	Nukes the player without looking back. If logged in, the connection will
		1093	be destroyed. May block for a long time.
		1094
		1095	=cut
		1096
		1097	sub quit_character {
		1098	my ($pl) = @_;
		1099
		1100	my $name = $pl->ob->name;
		1101
		1102	$pl->{deny_save} = 1;
		1103	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1104
		1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1106	$pl->deactivate;
		1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1108	$pl->ns->destroy if $pl->ns;
		1109
		1110	my $path = playerdir $pl;
		1111	my $temp = "$path~$cf::RUNTIME~deleting~";
		1112	aio_rename $path, $temp;
		1113	delete $cf::PLAYER{$pl->ob->name};
		1114	$pl->destroy;
		1115
		1116	my $prefix = qr<^~\Q$name\E/>;
		1117
		1118	# nuke player maps
		1119	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1120
		1121	IO::AIO::aio_rmtree $temp;
		1122	}
		1123
		1124	=item $pl->kick
		1125
		1126	Kicks a player out of the game. This destroys the connection.
		1127
		1128	=cut
		1129
		1130	sub kick {
		1131	my ($pl, $kicker) = @_;
		1132
		1133	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1134	$pl->killer ("kicked");
		1135	$pl->ns->destroy;
		1136	}
		1137
		1138	=item cf::player::list_logins
		1139
		1140	Returns am arrayref of all valid playernames in the system, can take a
		1141	while and may block, so not sync_job-capable, ever.
		1142
		1143	=cut
		1144
		1145	sub list_logins {
		1146	my $dirs = aio_readdir $PLAYERDIR
		1147	or return [];
		1148
		1149	my @logins;
		1150
		1151	for my $login (@$dirs) {
		1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1153	aio_read $fh, 0, 512, my $buf, 0 or next;
		1154	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1155
		1156	utf8::decode $login;
		1157	push @logins, $login;
		1158	}
		1159
		1160	\@logins
		1161	}
		1162
		1163	=item $player->maps
		1164
		1165	Returns an arrayref of map paths that are private for this
		1166	player. May block.
		1167
		1168	=cut
		1169
		1170	sub maps($) {
		1171	my ($pl) = @_;
		1172
		1173	$pl = ref $pl ? $pl->ob->name : $pl;
		1174
		1175	my $files = aio_readdir playerdir $pl
		1176	or return;
		1177
		1178	my @paths;
		1179
		1180	for (@$files) {
		1181	utf8::decode $_;
		1182	next if /\.(?:pl|pst)$/;
		1183	next unless /^$PATH_SEP/o;
		1184
		1185	push @paths, cf::map::normalise "~$pl/$_";
		1186	}
		1187
		1188	\@paths
		1189	}
		1190
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1114		1192
1115	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1116		1194
1117	=cut	1195	=cut
1118		1196
1119	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1120	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1121		1199
1122	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1123		1201
1124	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		1212	my ($self, $type, %msg) = @_;
		1213
		1214	$self->ns->ext_event ($type, %msg);
		1215	}
		1216
		1217	=head3 cf::region
		1218
		1219	=over 4
		1220
		1221	=cut
		1222
		1223	package cf::region;
		1224
		1225	=item cf::region::find_by_path $path
		1226
		1227	Tries to decuce the probable region for a map knowing only its path.
		1228
		1229	=cut
		1230
		1231	sub find_by_path($) {
		1232	my ($path) = @_;
		1233
		1234	my ($match, $specificity);
		1235
		1236	for my $region (list) {
		1237	if ($region->match && $path =~ $region->match) {
		1238	($match, $specificity) = ($region, $region->specificity)
		1239	if $region->specificity > $specificity;
		1240	}
		1241	}
		1242
		1243	$match
1125	}	1244	}
1126		1245
1127	=back	1246	=back
1128
1129		1247
1130	=head3 cf::map	1248	=head3 cf::map
1131		1249
1132	=over 4	1250	=over 4
1133		1251
…		…
1136	package cf::map;	1254	package cf::map;
1137		1255
1138	use Fcntl;	1256	use Fcntl;
1139	use Coro::AIO;	1257	use Coro::AIO;
1140		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1141	our $MAX_RESET = 7200;	1263	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1264	our $DEFAULT_RESET = 3000;
1143		1265
1144	sub generate_random_map {	1266	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1269	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1278	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1280	(cf::region::find $rmp->{region}), $rmp->{custom}
		1281	)
		1282	}
		1283
		1284	=item cf::map->register ($regex, $prio)
		1285
		1286	Register a handler for the map path matching the given regex at the
		1287	givne priority (higher is better, built-in handlers have priority 0, the
		1288	default).
		1289
		1290	=cut
		1291
		1292	sub register {
		1293	my (undef, $regex, $prio) = @_;
		1294	my $pkg = caller;
		1295
		1296	no strict;
		1297	push @{"$pkg\::ISA"}, __PACKAGE__;
		1298
		1299	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1300	}
		1301
		1302	# also paths starting with '/'
		1303	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1304
		1305	sub thawer_merge {
		1306	my ($self, $merge) = @_;
		1307
		1308	# we have to keep some variables in memory intact
		1309	local $self->{path};
		1310	local $self->{load_path};
		1311	local $self->{deny_save};
		1312	local $self->{deny_reset};
		1313
		1314	$self->SUPER::thawer_merge ($merge);
		1315	}
		1316
		1317	sub normalise {
		1318	my ($path, $base) = @_;
		1319
		1320	$path = "$path"; # make sure its a string
		1321
		1322	$path =~ s/\.map$//;
		1323
		1324	# map plan:
		1325	#
		1326	# /! non-realised random map exit (special hack!)
		1327	# {... are special paths that are not being touched
		1328	# ?xxx/... are special absolute paths
		1329	# ?random/... random maps
		1330	# /... normal maps
		1331	# ~user/... per-player map of a specific user
		1332
		1333	$path =~ s/$PATH_SEP/\//go;
		1334
		1335	# treat it as relative path if it starts with
		1336	# something that looks reasonable
		1337	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1338	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1339
		1340	$base =~ s{[^/]+/?$}{};
		1341	$path = "$base/$path";
		1342	}
		1343
		1344	for ($path) {
		1345	redo if s{//}{/};
		1346	redo if s{/\.?/}{/};
		1347	redo if s{/[^/]+/\.\./}{/};
		1348	}
		1349
		1350	$path
		1351	}
		1352
		1353	sub new_from_path {
		1354	my (undef, $path, $base) = @_;
		1355
		1356	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1357
		1358	$path = normalise $path, $base;
		1359
		1360	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1361	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1362	my $self = bless cf::map::new, $pkg;
		1363	$self->{path} = $path; $self->path ($path);
		1364	$self->init; # pass $1 etc.
		1365	return $self;
		1366	}
		1367	}
		1368
		1369	Carp::carp "unable to resolve path '$path' (base '$base').";
		1370	()
		1371	}
		1372
		1373	sub init {
		1374	my ($self) = @_;
		1375
		1376	$self
		1377	}
		1378
		1379	sub as_string {
		1380	my ($self) = @_;
		1381
		1382	"$self->{path}"
		1383	}
		1384
		1385	# the displayed name, this is a one way mapping
		1386	sub visible_name {
		1387	&as_string
		1388	}
		1389
		1390	# the original (read-only) location
		1391	sub load_path {
		1392	my ($self) = @_;
		1393
		1394	"$MAPDIR/$self->{path}.map"
		1395	}
		1396
		1397	# the temporary/swap location
		1398	sub save_path {
		1399	my ($self) = @_;
		1400
		1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1402	"$TMPDIR/$path.map"
		1403	}
		1404
		1405	# the unique path, undef == no special unique path
		1406	sub uniq_path {
		1407	my ($self) = @_;
		1408
		1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1410	"$UNIQUEDIR/$path"
1161	}	1411	}
1162		1412
1163	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1164	# all maps in C++...	1414	# all maps in C++...
1165	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1167		1417
1168	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1170	}	1420	}
1171		1421
		1422	sub unlink_save {
		1423	my ($self) = @_;
		1424
		1425	utf8::encode (my $save = $self->save_path);
		1426	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1427	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1428	}
		1429
1172	sub try_load_header($) {	1430	sub load_header_from($) {
1173	my ($path) = @_;	1431	my ($self, $path) = @_;
1174		1432
1175	utf8::encode $path;	1433	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1177	or return;	1438	or return;
1178		1439
1179	my $map = cf::map::new	1440	$self->{load_path} = $path;
		1441
		1442	1
		1443	}
		1444
		1445	sub load_header_orig {
		1446	my ($self) = @_;
		1447
		1448	$self->load_header_from ($self->load_path)
		1449	}
		1450
		1451	sub load_header_temp {
		1452	my ($self) = @_;
		1453
		1454	$self->load_header_from ($self->save_path)
		1455	}
		1456
		1457	sub prepare_temp {
		1458	my ($self) = @_;
		1459
		1460	$self->last_access ((delete $self->{last_access})
		1461	|| $cf::RUNTIME); #d#
		1462	# safety
		1463	$self->{instantiate_time} = $cf::RUNTIME
		1464	if $self->{instantiate_time} > $cf::RUNTIME;
		1465	}
		1466
		1467	sub prepare_orig {
		1468	my ($self) = @_;
		1469
		1470	$self->{load_original} = 1;
		1471	$self->{instantiate_time} = $cf::RUNTIME;
		1472	$self->last_access ($cf::RUNTIME);
		1473	$self->instantiate;
		1474	}
		1475
		1476	sub load_header {
		1477	my ($self) = @_;
		1478
		1479	if ($self->load_header_temp) {
		1480	$self->prepare_temp;
		1481	} else {
		1482	$self->load_header_orig
1180	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1181		1486
1182	$map->load_header ($path)	1487	$self->default_region (cf::region::find_by_path $self->{path})
1183	or return;	1488	unless $self->default_region;
1184		1489
1185	$map->{load_path} = $path;	1490	1
1186
1187	$map
1188	}	1491	}
1189		1492
1190	sub find_map;	1493	sub find;
1191	sub find_map {	1494	sub find {
1192	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1193		1496
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1498
1199	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1200		1500
1201	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1203		1503	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1504	or return;
1219		1505
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1507
1233	if ($map->should_reset) {	1508	$map->load_header
		1509	or return;
		1510
		1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1512	# doing this can freeze the server in a sync job, obviously
		1513	#$cf::WAIT_FOR_TICK->wait;
1234	$map->reset;	1514	$map->reset;
1235	undef $guard;	1515	undef $guard;
1236	$map = find_map $path	1516	return find $path;
1237	or return;
1238	}	1517	}
1239		1518
1240	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1241	}	1520	}
1242	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1243		1525
1244	sub load {	1526	sub load {
1245	my ($self) = @_;	1527	my ($self) = @_;
1246		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1247	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1249		1535
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1537
1252	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1253		1539
1254	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1255	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1546	or return;
1257		1547
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1549	if delete $self->{load_original};
1260		1550
1261	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1552	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1554	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1266	}	1556	}
1267	}	1557	}
1268		1558
		1559	Coro::cede;
1269	# now do the right thing for maps	1560	# now do the right thing for maps
1270	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	1563	unless $self->difficulty;
		1564	Coro::cede;
		1565
		1566	unless ($self->{deny_activate}) {
		1567	$self->decay_objects;
		1568	$self->fix_auto_apply;
		1569	$self->update_buttons;
		1570	Coro::cede;
		1571	$self->set_darkness_map;
		1572	Coro::cede;
1282	$self->activate;	1573	$self->activate;
1283	}	1574	}
1284		1575
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1577	}
1287		1578
1288	sub load_map_sync {	1579	$self->post_load;
		1580	}
		1581
		1582	sub customise_for {
		1583	my ($self, $ob) = @_;
		1584
		1585	return find "~" . $ob->name . "/" . $self->{path}
		1586	if $self->per_player;
		1587
		1588	$self
		1589	}
		1590
		1591	# find and load all maps in the 3x3 area around a map
		1592	sub load_diag {
		1593	my ($map) = @_;
		1594
		1595	my @diag; # diagonal neighbours
		1596
		1597	for (0 .. 3) {
		1598	my $neigh = $map->tile_path ($_)
		1599	or next;
		1600	$neigh = find $neigh, $map
		1601	or next;
		1602	$neigh->load;
		1603
		1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1606	}
		1607
		1608	for (@diag) {
		1609	my $neigh = find @$_
		1610	or next;
		1611	$neigh->load;
		1612	}
		1613	}
		1614
		1615	sub find_sync {
1289	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1290		1617
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1618	cf::sync_job { find $path, $origin }
		1619	}
1292		1620
1293	cf::sync_job {	1621	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1622	my ($map) = @_;
1295	or return;	1623
		1624	cf::sync_job { $map->load };
		1625	}
		1626
		1627	our %MAP_PREFETCH;
		1628	our $MAP_PREFETCHER = undef;
		1629
		1630	sub find_async {
		1631	my ($path, $origin) = @_;
		1632
		1633	$path = normalise $path, $origin && $origin->{path};
		1634
		1635	if (my $map = $cf::MAP{$path}) {
		1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1637	}
		1638
		1639	undef $MAP_PREFETCH{$path};
		1640	$MAP_PREFETCHER ||= cf::async {
		1641	while (%MAP_PREFETCH) {
		1642	for my $path (keys %MAP_PREFETCH) {
		1643	my $map = find $path
		1644	or next;
1296	$map->load;	1645	$map->load;
1297	$map	1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
1298	}	1651	};
		1652	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
1299	}	1655	}
1300		1656
1301	sub save {	1657	sub save {
1302	my ($self) = @_;	1658	my ($self) = @_;
1303		1659
		1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1661
1304	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1305		1663
1306	return unless $self->dirty;	1664	return unless $self->dirty;
1307		1665
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1668
1311	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1312		1670
1313	return if $self->{deny_save};	1671	return if $self->{deny_save};
1314		1672
		1673	local $self->{last_access} = $self->last_access;#d#
		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1315	if ($uniq) {	1679	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	1682	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	1684	}
1321	}	1685	}
1322		1686
1323	sub swap_out {	1687	sub swap_out {
1324	my ($self) = @_;	1688	my ($self) = @_;
1325		1689
1326	# save first because save cedes	1690	# save first because save cedes
1327	$self->save;	1691	$self->save;
		1692
		1693	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		1694
1329	return if $self->players;	1695	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	1697	return if $self->{deny_save};
1332		1698
…		…
1336		1702
1337	sub reset_at {	1703	sub reset_at {
1338	my ($self) = @_;	1704	my ($self) = @_;
1339		1705
1340	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1342	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1343		1709
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		1712
…		…
1351	my ($self) = @_;	1717	my ($self) = @_;
1352		1718
1353	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1354	}	1720	}
1355		1721
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	1722	sub reset {
1378	my ($self) = @_;	1723	my ($self) = @_;
1379		1724
		1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1726
1380	return if $self->players;	1727	return if $self->players;
1381	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1382		1729
1383	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1384		1731
		1732	$self->in_memory (cf::MAP_SWAPPED);
		1733
		1734	# need to save uniques path
		1735	unless ($self->{deny_save}) {
		1736	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1737
		1738	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1739	if $uniq;
		1740	}
		1741
1385	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1386		1745
1387	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1388		1747
1389	$self->unlink_save;	1748	$self->unlink_save;
1390	$self->destroy;	1749	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1394		1753
1395	sub nuke {	1754	sub nuke {
1396	my ($self) = @_;	1755	my ($self) = @_;
1397		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1401	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1402	}	1770	}
1403		1771
1404	sub customise_for {	1772	=item cf::map::unique_maps
1405	my ($map, $ob) = @_;
1406		1773
1407	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1409	}
1410		1776
1411	$map	1777	=cut
1412	}
1413		1778
1414	sub emergency_save {	1779	sub unique_maps() {
1415	local $cf::FREEZE = 1;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1416		1782
1417	warn "enter emergency map save\n";	1783	my @paths;
1418		1784
1419	cf::sync_job {	1785	for (@$files) {
1420	warn "begin emergency map save\n";	1786	utf8::decode $_;
1421	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1422	};	1791	}
1423		1792
1424	warn "end emergency map save\n";	1793	\@paths
1425	}	1794	}
1426		1795
1427	package cf;	1796	package cf;
1428		1797
1429	=back	1798	=back
1430		1799
		1800	=head3 cf::object
		1801
		1802	=cut
		1803
		1804	package cf::object;
		1805
		1806	=over 4
		1807
		1808	=item $ob->inv_recursive
		1809
		1810	Returns the inventory of the object _and_ their inventories, recursively.
		1811
		1812	=cut
		1813
		1814	sub inv_recursive_;
		1815	sub inv_recursive_ {
		1816	map { $_, inv_recursive_ $_->inv } @_
		1817	}
		1818
		1819	sub inv_recursive {
		1820	inv_recursive_ inv $_[0]
		1821	}
		1822
		1823	package cf;
		1824
		1825	=back
1431		1826
1432	=head3 cf::object::player	1827	=head3 cf::object::player
1433		1828
1434	=over 4	1829	=over 4
1435		1830
…		…
1475		1870
1476	=item $player_object->enter_link	1871	=item $player_object->enter_link
1477		1872
1478	Freezes the player and moves him/her to a special map (C<{link}>).	1873	Freezes the player and moves him/her to a special map (C<{link}>).
1479		1874
1480	The player should be reaosnably safe there for short amounts of time. You	1875	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1482		1877
		1878	Will never block.
		1879
1483	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1484		1881
1485	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	1885	fails, to the emergency map position.
1489		1886
1490	Might block.	1887	Might block.
1491		1888
1492	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($LINK_MAP) {
		1893	$LINK_MAP = cf::map::find "{link}"
		1894	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1895	$LINK_MAP->load;
		1896	}
		1897
		1898	$LINK_MAP
		1899	}
1493		1900
1494	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1495	my ($self) = @_;	1902	my ($self) = @_;
1496		1903
1497	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1498		1905
1499	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		1907
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	1909	if $self->map;
1503		1910
1504	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	1912	}
1506		1913
1507	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1509		1916
1510	my $link_pos = delete $self->{_link_pos};	1917	my $link_pos = delete $self->{_link_pos};
1511		1918
1512	unless ($map) {	1919	unless ($map) {
1513	# restore original map position	1920	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	1921	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	1922	$map = cf::map::find $map;
1516		1923
1517	unless ($map) {	1924	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	1925	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	1926	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	1927	or die "FATAL: cannot load emergency map\n";
1521	}	1928	}
1522	}	1929	}
1523		1930
1524	($x, $y) = (-1, -1)	1931	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1530		1937
1531	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1532		1940
		1941	return unless $self->contr->active;
1533	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1535	}	1946	}
1536		1947
1537	cf::player->attach (	1948	cf::player->attach (
1538	on_logout => sub {	1949	on_logout => sub {
…		…
1550		1961
1551	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes	1963	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1555	cf::async {	1966	(async {
		1967	$pl->ob->reply (undef,
		1968	"There was an internal problem at your last logout, "
		1969	. "the server will try to bring you to your intended destination in a second.",
		1970	cf::NDI_RED);
1556	# we need this sleep as the login has a concurrent enter_exit running	1971	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn	1972	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1560	};	1975	})->prio (2);
1561	}	1976	}
1562	},	1977	},
1563	);	1978	);
1564		1979
1565	=item $player_object->goto_map ($path, $x, $y)	1980	=item $player_object->goto ($path, $x, $y)
1566		1981
1567	=cut	1982	=cut
1568		1983
1569	sub cf::object::player::goto_map {	1984	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	1985	my ($self, $path, $x, $y) = @_;
1571		1986
1572	$self->enter_link;	1987	$self->enter_link;
1573		1988
1574	(cf::async {	1989	(async {
1575	$path = new cf::path $path;	1990	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	1991	my $map = cf::map::find $path;
1578	$map = $map->customise_for ($self) if $map;	1992	$map = $map->customise_for ($self) if $map;
1579		1993	$map
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	1994	} or
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1584		1996
1585	$self->leave_link ($map, $x, $y);	1997	$self->leave_link ($map, $x, $y);
1586	})->prio (1);	1998	})->prio (1);
1587	}	1999	}
1588		2000
…		…
1592		2004
1593	sub parse_random_map_params {	2005	sub parse_random_map_params {
1594	my ($spec) = @_;	2006	my ($spec) = @_;
1595		2007
1596	my $rmp = { # defaults	2008	my $rmp = { # defaults
1597	xsize => 10,	2009	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2010	ysize => (cf::rndm 15, 40),
		2011	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2012	#layout => string,
1599	};	2013	};
1600		2014
1601	for (split /\n/, $spec) {	2015	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2016	my ($k, $v) = split /\s+/, $_, 2;
1603		2017
…		…
1607	$rmp	2021	$rmp
1608	}	2022	}
1609		2023
1610	sub prepare_random_map {	2024	sub prepare_random_map {
1611	my ($exit) = @_;	2025	my ($exit) = @_;
		2026
		2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2028
1613	# all this does is basically replace the /! path by	2029	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2030	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2031	# that depends on the exit object
1616		2032
1617	my $rmp = parse_random_map_params $exit->msg;	2033	my $rmp = parse_random_map_params $exit->msg;
1618		2034
1619	if ($exit->map) {	2035	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2036	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2037	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2038	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2039	$rmp->{origin_y} = $exit->y;
1624	}	2040	}
1625		2041
1626	$rmp->{random_seed} ||= $exit->random_seed;	2042	$rmp->{random_seed} ||= $exit->random_seed;
1627		2043
1628	my $data = cf::to_json $rmp;	2044	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2045	my $md5 = Digest::MD5::md5_hex $data;
		2046	my $meta = "$RANDOMDIR/$md5.meta";
1630		2047
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2048	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2049	aio_write $fh, 0, (length $data), $data, 0;
		2050	undef $fh;
		2051	aio_rename "$meta~", $meta;
1633		2052
1634	$exit->slaying ("?random/$md5");	2053	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2054	$exit->msg (undef);
1636	}	2055	}
1637	}	2056	}
…		…
1639	sub cf::object::player::enter_exit {	2058	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2059	my ($self, $exit) = @_;
1641		2060
1642	return unless $self->type == cf::PLAYER;	2061	return unless $self->type == cf::PLAYER;
1643		2062
		2063	if ($exit->slaying eq "/!") {
		2064	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2065	# the problem is that $exit might not survive long enough
		2066	# so it needs to be done right now, right here
		2067	cf::sync_job { prepare_random_map $exit };
		2068	}
		2069
		2070	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2071	my $hp = $exit->stats->hp;
		2072	my $sp = $exit->stats->sp;
		2073
1644	$self->enter_link;	2074	$self->enter_link;
1645		2075
1646	(cf::async {	2076	(async {
		2077	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2078	unless (eval {
1648	prepare_random_map $exit	2079	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2080
1654	1;	2081	1;
1655	}) {	2082	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2083	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2084	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2085	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2086	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2087
1661	warn "ERROR in enter_exit: $@";	2088	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2089	$self->leave_link;
1663	}	2090	}
1664	})->prio (1);	2091	})->prio (1);
…		…
1677		2104
1678	sub cf::client::send_drawinfo {	2105	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2106	my ($self, $text, $flags) = @_;
1680		2107
1681	utf8::encode $text;	2108	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2110	}
1684		2111
		2112	=item $client->ext_event ($type, %msg)
		2113
		2114	Sends an exti event to the client.
		2115
		2116	=cut
		2117
		2118	sub cf::client::ext_event($$%) {
		2119	my ($self, $type, %msg) = @_;
		2120
		2121	$msg{msgtype} = "event_$type";
		2122	$self->send_packet ("ext " . cf::to_json \%msg);
		2123	}
1685		2124
1686	=item $success = $client->query ($flags, "text", \&cb)	2125	=item $success = $client->query ($flags, "text", \&cb)
1687		2126
1688	Queues a query to the client, calling the given callback with	2127	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1718	# get handled first	2157	# get handled first
1719	my $queue = delete $ns->{query_queue}	2158	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2159	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2160
1722	(shift @$queue)->[1]->($msg);	2161	(shift @$queue)->[1]->($msg);
		2162	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2163
1724	push @{ $ns->{query_queue} }, @$queue;	2164	push @{ $ns->{query_queue} }, @$queue;
1725		2165
1726	if (@{ $ns->{query_queue} } == @$queue) {	2166	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2167	if (@$queue) {
…		…
1731	}	2171	}
1732	}	2172	}
1733	},	2173	},
1734	);	2174	);
1735		2175
1736	=item $client->coro (\&cb)	2176	=item $client->async (\&cb)
1737		2177
1738	Create a new coroutine, running the specified callback. The coroutine will	2178	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2179	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2180	or loss of connection).
1741		2181
1742	=cut	2182	=cut
1743		2183
1744	sub cf::client::coro {	2184	sub cf::client::async {
1745	my ($self, $cb) = @_;	2185	my ($self, $cb) = @_;
1746		2186
1747	my $coro = &cf::async ($cb);	2187	my $coro = &Coro::async ($cb);
1748		2188
1749	$coro->on_destroy (sub {	2189	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2190	delete $self->{_coro}{$coro+0};
1751	});	2191	});
1752		2192
…		…
1785		2225
1786	# here we export the classes and methods available to script code	2226	# here we export the classes and methods available to script code
1787		2227
1788	=pod	2228	=pod
1789		2229
1790	The following fucntions and emthods are available within a safe environment:	2230	The following functions and methods are available within a safe environment:
1791		2231
1792	cf::object contr pay_amount pay_player map	2232	cf::object contr pay_amount pay_player map
1793	cf::object::player player	2233	cf::object::player player
1794	cf::player peaceful	2234	cf::player peaceful
1795	cf::map trigger	2235	cf::map trigger
…		…
1880	#############################################################################	2320	#############################################################################
1881		2321
1882	=head2 EXTENSION DATABASE SUPPORT	2322	=head2 EXTENSION DATABASE SUPPORT
1883		2323
1884	Crossfire maintains a very simple database for extension use. It can	2324	Crossfire maintains a very simple database for extension use. It can
1885	currently store anything that can be serialised using Storable, which	2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1886	excludes objects.	2326	convert to/from binary).
1887		2327
1888	The parameter C<$family> should best start with the name of the extension	2328	The parameter C<$family> should best start with the name of the extension
1889	using it, it should be unique.	2329	using it, it should be unique.
1890		2330
1891	=over 4	2331	=over 4
1892		2332
1893	=item $hashref = cf::db_get $family
1894
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key	2333	=item $value = cf::db_get $family => $key
1900		2334
1901	Returns a single value from the database	2335	Returns a single value from the database.
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907		2336
1908	=item cf::db_put $family => $key => $value	2337	=item cf::db_put $family => $key => $value
1909		2338
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you	2339	Stores the given C<$value> in the family.
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920		2340
1921	=cut	2341	=cut
1922		2342
1923	our $DB;	2343	our $DB;
1924		2344
1925	{	2345	sub db_init {
1926	my $path = cf::localdir . "/database.pst";	2346	unless ($DB) {
		2347	$DB = BDB::db_create $DB_ENV;
1927		2348
1928	sub db_load() {	2349	cf::sync_job {
1929	$DB = stat $path ? Storable::retrieve $path : { };	2350	eval {
1930	}	2351	$DB->set_flags (BDB::CHKSUM);
1931		2352
1932	my $pid;	2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1933		2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1934	sub db_save() {	2355	cf::cleanup "db_open(db): $!" if $!;
1935	waitpid $pid, 0 if $pid;	2356	};
1936	if (0 == ($pid = fork)) {	2357	cf::cleanup "db_open(db): $@" if $@;
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}	2358	};
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	2359	}
		2360	}
1954		2361
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {	2362	sub db_get($$) {
1961	@_ >= 2	2363	my $key = "$_[0]/$_[1]";
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		2364
		2365	cf::sync_job {
		2366	BDB::db_get $DB, undef, $key, my $data;
		2367
		2368	$! ? ()
		2369	: $data
		2370	}
		2371	}
		2372
1966	sub db_put($$;$) {	2373	sub db_put($$$) {
1967	if (@_ >= 3) {	2374	BDB::dbreq_pri 4;
1968	$DB->{$_[0]}{$_[1]} = $_[2];	2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1969	} else {	2376	}
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		2377
1975	cf::global->attach (	2378	=item cf::cache $id => [$paths...], $processversion => $process
1976	prio => 10000,	2379
1977	on_cleanup => sub {	2380	Generic caching function that returns the value of the resource $id,
1978	db_sync;	2381	caching and regenerating as required.
		2382
		2383	This function can block.
		2384
		2385	=cut
		2386
		2387	sub cache {
		2388	my ($id, $src, $processversion, $process) = @_;
		2389
		2390	my $meta =
		2391	join "\x00",
		2392	$processversion,
		2393	map {
		2394	aio_stat $_
		2395	and Carp::croak "$_: $!";
		2396
		2397	($_, (stat _)[7,9])
		2398	} @$src;
		2399
		2400	my $dbmeta = db_get cache => "$id/meta";
		2401	if ($dbmeta ne $meta) {
		2402	# changed, we may need to process
		2403
		2404	my @data;
		2405	my $md5;
		2406
		2407	for (0 .. $#$src) {
		2408	0 <= aio_load $src->[$_], $data[$_]
		2409	or Carp::croak "$src->[$_]: $!";
1979	},	2410	}
1980	);	2411
		2412	# if processing is expensive, check
		2413	# checksum first
		2414	if (1) {
		2415	$md5 =
		2416	join "\x00",
		2417	$processversion,
		2418	map {
		2419	Coro::cede;
		2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2421	} 0.. $#$src;
		2422
		2423
		2424	my $dbmd5 = db_get cache => "$id/md5";
		2425	if ($dbmd5 eq $md5) {
		2426	db_put cache => "$id/meta", $meta;
		2427
		2428	return db_get cache => "$id/data";
		2429	}
		2430	}
		2431
		2432	my $t1 = Time::HiRes::time;
		2433	my $data = $process->(\@data);
		2434	my $t2 = Time::HiRes::time;
		2435
		2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2437
		2438	db_put cache => "$id/data", $data;
		2439	db_put cache => "$id/md5" , $md5;
		2440	db_put cache => "$id/meta", $meta;
		2441
		2442	return $data;
		2443	}
		2444
		2445	db_get cache => "$id/data"
1981	}	2446	}
		2447
		2448	=item fork_call { }, $args
		2449
		2450	Executes the given code block with the given arguments in a seperate
		2451	process, returning the results. Everything must be serialisable with
		2452	Coro::Storable. May, of course, block. Note that the executed sub may
		2453	never block itself or use any form of Event handling.
		2454
		2455	=cut
		2456
		2457	sub fork_call(&@) {
		2458	my ($cb, @args) = @_;
		2459
		2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2461	# or die "socketpair: $!";
		2462	pipe my $fh1, my $fh2
		2463	or die "pipe: $!";
		2464
		2465	if (my $pid = fork) {
		2466	close $fh2;
		2467
		2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2469	$res = Coro::Storable::thaw $res;
		2470
		2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2472
		2473	die $$res unless "ARRAY" eq ref $res;
		2474
		2475	return wantarray ? @$res : $res->[-1];
		2476	} else {
		2477	reset_signals;
		2478	local $SIG{__WARN__};
		2479	local $SIG{__DIE__};
		2480	eval {
		2481	close $fh1;
		2482
		2483	my @res = eval { $cb->(@args) };
		2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2485	};
		2486
		2487	warn $@ if $@;
		2488	_exit 0;
		2489	}
		2490	}
		2491
		2492
1982		2493
1983	#############################################################################	2494	#############################################################################
1984	# the server's main()	2495	# the server's init and main functions
		2496
		2497	sub load_facedata($) {
		2498	my ($path) = @_;
		2499
		2500	warn "loading facedata from $path\n";
		2501
		2502	my $facedata;
		2503	0 < aio_load $path, $facedata
		2504	or die "$path: $!";
		2505
		2506	$facedata = Coro::Storable::thaw $facedata;
		2507
		2508	$facedata->{version} == 2
		2509	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2510
		2511	{
		2512	my $faces = $facedata->{faceinfo};
		2513
		2514	while (my ($face, $info) = each %$faces) {
		2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2519	Coro::cede;
		2520	}
		2521
		2522	while (my ($face, $info) = each %$faces) {
		2523	next unless $info->{smooth};
		2524	my $idx = cf::face::find $face
		2525	or next;
		2526	if (my $smooth = cf::face::find $info->{smooth}) {
		2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2528	} else {
		2529	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2530	}
		2531	Coro::cede;
		2532	}
		2533	}
		2534
		2535	{
		2536	my $anims = $facedata->{animinfo};
		2537
		2538	while (my ($anim, $info) = each %$anims) {
		2539	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2540	Coro::cede;
		2541	}
		2542
		2543	cf::anim::invalidate_all; # d'oh
		2544	}
		2545
		2546	1
		2547	}
		2548
		2549	sub reload_regions {
		2550	load_resource_file "$MAPDIR/regions"
		2551	or die "unable to load regions file\n";
		2552	}
		2553
		2554	sub reload_facedata {
		2555	load_facedata "$DATADIR/facedata"
		2556	or die "unable to load facedata\n";
		2557	}
		2558
		2559	sub reload_archetypes {
		2560	load_resource_file "$DATADIR/archetypes"
		2561	or die "unable to load archetypes\n";
		2562	}
		2563
		2564	sub reload_treasures {
		2565	load_resource_file "$DATADIR/treasures"
		2566	or die "unable to load treasurelists\n";
		2567	}
		2568
		2569	sub reload_resources {
		2570	warn "reloading resource files...\n";
		2571
		2572	reload_regions;
		2573	reload_facedata;
		2574	reload_archetypes;
		2575	reload_treasures;
		2576
		2577	warn "finished reloading resource files\n";
		2578	}
		2579
		2580	sub init {
		2581	reload_resources;
		2582	}
1985		2583
1986	sub cfg_load {	2584	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2585	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2586	or return;
1989		2587
1990	local $/;	2588	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2589	*CFG = YAML::Syck::Load <$fh>;
1992		2590
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2591	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2592
		2593	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2594	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2595
1995	if (exists $CFG{mlockall}) {	2596	if (exists $CFG{mlockall}) {
1996	eval {	2597	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2598	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2599	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2600	};
2000	warn $@ if $@;	2601	warn $@ if $@;
2001	}	2602	}
2002	}	2603	}
2003		2604
2004	sub main {	2605	sub main {
2005	# we must not ever block the main coroutine	2606	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2607	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2608	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2609	(async {
2009	Event::one_event;	2610	Event::one_event;
2010	})->();	2611	})->prio (Coro::PRIO_MAX);
2011	};	2612	};
2012		2613
2013	cfg_load;	2614	cfg_load;
2014	db_load;	2615	db_init;
2015	load_extensions;	2616	load_extensions;
		2617
		2618	$TICK_WATCHER->start;
2016	Event::loop;	2619	Event::loop;
2017	}	2620	}
2018		2621
2019	#############################################################################	2622	#############################################################################
2020	# initialisation	2623	# initialisation and cleanup
2021		2624
		2625	# install some emergency cleanup handlers
		2626	BEGIN {
		2627	for my $signal (qw(INT HUP TERM)) {
		2628	Event->signal (
		2629	reentrant => 0,
		2630	data => WF_AUTOCANCEL,
		2631	signal => $signal,
		2632	prio => 0,
		2633	cb => sub {
		2634	cf::cleanup "SIG$signal";
		2635	},
		2636	);
		2637	}
		2638	}
		2639
		2640	sub emergency_save() {
		2641	my $freeze_guard = cf::freeze_mainloop;
		2642
		2643	warn "enter emergency perl save\n";
		2644
		2645	cf::sync_job {
		2646	# use a peculiar iteration method to avoid tripping on perl
		2647	# refcount bugs in for. also avoids problems with players
		2648	# and maps saved/destroyed asynchronously.
		2649	warn "begin emergency player save\n";
		2650	for my $login (keys %cf::PLAYER) {
		2651	my $pl = $cf::PLAYER{$login} or next;
		2652	$pl->valid or next;
		2653	$pl->save;
		2654	}
		2655	warn "end emergency player save\n";
		2656
		2657	warn "begin emergency map save\n";
		2658	for my $path (keys %cf::MAP) {
		2659	my $map = $cf::MAP{$path} or next;
		2660	$map->valid or next;
		2661	$map->save;
		2662	}
		2663	warn "end emergency map save\n";
		2664
		2665	warn "begin emergency database checkpoint\n";
		2666	BDB::db_env_txn_checkpoint $DB_ENV;
		2667	warn "end emergency database checkpoint\n";
		2668	};
		2669
		2670	warn "leave emergency perl save\n";
		2671	}
		2672
		2673	sub post_cleanup {
		2674	my ($make_core) = @_;
		2675
		2676	warn Carp::longmess "post_cleanup backtrace"
		2677	if $make_core;
		2678	}
		2679
2022	sub reload() {	2680	sub do_reload_perl() {
2023	# can/must only be called in main	2681	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	2682	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	2683	warn "can only reload from main coroutine";
2026	return;	2684	return;
2027	}	2685	}
2028		2686
2029	warn "reloading...";	2687	warn "reloading...";
2030		2688
2031	local $FREEZE = 1;	2689	warn "entering sync_job";
		2690
		2691	cf::sync_job {
		2692	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	2693	cf::emergency_save;
		2694	cf::write_runtime; # external watchdog should not bark
2033		2695
2034	eval {	2696	warn "syncing database to disk";
		2697	BDB::db_env_txn_checkpoint $DB_ENV;
		2698
2035	# if anything goes wrong in here, we should simply crash as we already saved	2699	# if anything goes wrong in here, we should simply crash as we already saved
2036		2700
2037	# cancel all watchers	2701	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	2702	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	2703	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	2704	}
2041		2705
		2706	warn "flushing outstanding aio requests";
		2707	for (;;) {
		2708	BDB::flush;
		2709	IO::AIO::flush;
		2710	Coro::cede;
		2711	last unless IO::AIO::nreqs || BDB::nreqs;
		2712	warn "iterate...";
		2713	}
		2714
		2715	++$RELOAD;
		2716
2042	# cancel all extension coros	2717	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	2718	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	2719	%EXT_CORO = ();
2045		2720
2046	# unload all extensions	2721	warn "removing commands";
2047	for (@exts) {	2722	%COMMAND = ();
		2723
		2724	warn "removing ext commands";
		2725	%EXTCMD = ();
		2726
		2727	warn "unloading/nuking all extensions";
		2728	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	2729	warn "... unloading $pkg";
2049	unload_extension $_;	2730
		2731	if (my $cb = $pkg->can ("unload")) {
		2732	eval {
		2733	$cb->($pkg);
		2734	1
		2735	} or warn "$pkg unloaded, but with errors: $@";
2050	}	2736	}
2051		2737
		2738	warn "... nuking $pkg";
		2739	Symbol::delete_package $pkg;
		2740	}
		2741
2052	# unload all modules loaded from $LIBDIR	2742	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	2743	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		2745
2056	warn "removing <$k>";	2746	warn "... unloading $k";
2057	delete $INC{$k};	2747	delete $INC{$k};
2058		2748
2059	$k =~ s/\.pm$//;	2749	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	2750	$k =~ s/\//::/g;
2061		2751
…		…
2064	}	2754	}
2065		2755
2066	Symbol::delete_package $k;	2756	Symbol::delete_package $k;
2067	}	2757	}
2068		2758
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	2759	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	2760	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		2762
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	2763	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	2764	delete $INC{"cf.pm"};
		2765	delete $INC{"cf/pod.pm"};
2082		2766
2083	# don't, removes xs symbols, too,	2767	# don't, removes xs symbols, too,
2084	# and global variables created in xs	2768	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	2769	#Symbol::delete_package __PACKAGE__;
2086		2770
2087	# reload cf.pm	2771	warn "unload completed, starting to reload now";
		2772
2088	warn "reloading cf.pm";	2773	warn "reloading cf.pm";
2089	require cf;	2774	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		2776
2092	# load config and database again	2777	warn "loading config and database again";
2093	cf::cfg_load;	2778	cf::cfg_load;
2094	cf::db_load;
2095		2779
2096	# load extensions
2097	warn "load extensions";	2780	warn "loading extensions";
2098	cf::load_extensions;	2781	cf::load_extensions;
2099		2782
2100	# reattach attachments to objects	2783	warn "reattaching attachments to objects/players";
2101	warn "reattach";	2784	_global_reattach; # objects, sockets
2102	_global_reattach;	2785	warn "reattaching attachments to maps";
2103	};	2786	reattach $_ for values %MAP;
		2787	warn "reattaching attachments to players";
		2788	reattach $_ for values %PLAYER;
2104		2789
2105	if ($@) {	2790	warn "leaving sync_job";
		2791
		2792	1
		2793	} or do {
2106	warn $@;	2794	warn $@;
2107	warn "error while reloading, exiting.";	2795	warn "error while reloading, exiting.";
2108	exit 1;	2796	exit 1;
2109	}	2797	};
2110		2798
2111	warn "reloaded successfully";	2799	warn "reloaded";
2112	};	2800	};
2113		2801
2114	#############################################################################	2802	our $RELOAD_WATCHER; # used only during reload
2115		2803
2116	unless ($LINK_MAP) {	2804	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	2805	# doing reload synchronously and two reloads happen back-to-back,
		2806	# coro crashes during coro_state_free->destroy here.
2118		2807
2119	$LINK_MAP->width (41);	2808	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	2809	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	2810	after => 0,
		2811	data => WF_AUTOCANCEL,
2129	cb => sub {	2812	cb => sub {
2130	$_[0]->w->cancel;	2813	do_reload_perl;
2131		2814	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	2815	},
2150		2816	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	2817	}
2156
2157	register "<global>", __PACKAGE__;
2158		2818
2159	register_command "reload" => sub {	2819	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	2820	my ($who, $arg) = @_;
2161		2821
2162	if ($who->flag (FLAG_WIZ)) {	2822	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	2823	$who->message ("reloading server.");
		2824	async { reload_perl };
2166	}	2825	}
2167	};	2826	};
2168		2827
2169	unshift @INC, $LIBDIR;	2828	unshift @INC, $LIBDIR;
		2829
		2830	my $bug_warning = 0;
		2831
		2832	our @WAIT_FOR_TICK;
		2833	our @WAIT_FOR_TICK_BEGIN;
		2834
		2835	sub wait_for_tick {
		2836	return unless $TICK_WATCHER->is_active;
		2837	return if $Coro::current == $Coro::main;
		2838
		2839	my $signal = new Coro::Signal;
		2840	push @WAIT_FOR_TICK, $signal;
		2841	$signal->wait;
		2842	}
		2843
		2844	sub wait_for_tick_begin {
		2845	return unless $TICK_WATCHER->is_active;
		2846	return if $Coro::current == $Coro::main;
		2847
		2848	my $signal = new Coro::Signal;
		2849	push @WAIT_FOR_TICK_BEGIN, $signal;
		2850	$signal->wait;
		2851	}
2170		2852
2171	$TICK_WATCHER = Event->timer (	2853	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	2854	reentrant => 0,
		2855	parked => 1,
2173	prio => 0,	2856	prio => 0,
2174	at => $NEXT_TICK || $TICK,	2857	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	2858	data => WF_AUTOCANCEL,
2176	cb => sub {	2859	cb => sub {
2177	unless ($FREEZE) {	2860	if ($Coro::current != $Coro::main) {
		2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2862	unless ++$bug_warning > 10;
		2863	return;
		2864	}
		2865
		2866	$NOW = $tick_start = Event::time;
		2867
2178	cf::server_tick; # one server iteration	2868	cf::server_tick; # one server iteration
		2869
2179	$RUNTIME += $TICK;	2870	$RUNTIME += $TICK;
2180	}
2181
2182	$NEXT_TICK += $TICK;	2871	$NEXT_TICK += $TICK;
2183		2872
		2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2874	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2875	Coro::async_pool {
		2876	write_runtime
		2877	or warn "ERROR: unable to write runtime file: $!";
		2878	};
		2879	}
		2880
		2881	# my $AFTER = Event::time;
		2882	# warn $AFTER - $NOW;#d#
		2883
		2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2885	$sig->send;
		2886	}
		2887	while (my $sig = shift @WAIT_FOR_TICK) {
		2888	$sig->send;
		2889	}
		2890
		2891	$NOW = Event::time;
		2892
2184	# if we are delayed by four ticks or more, skip them all	2893	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2186		2895
2187	$TICK_WATCHER->at ($NEXT_TICK);	2896	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;	2897	$TICK_WATCHER->start;
		2898
		2899	$LOAD = ($NOW - $tick_start) / $TICK;
		2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2901
		2902	_post_tick;
		2903
		2904
2189	},	2905	},
2190	);	2906	);
2191		2907
		2908	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	2909	BDB::max_poll_time $TICK * 0.1;
2193		2910	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	2911	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	2912	fd => BDB::poll_fileno,
2196	poll => 'r',	2913	poll => 'r',
2197	prio => 5,	2914	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	2915	data => WF_AUTOCANCEL,
2204	after => 0,	2916	cb => \&BDB::poll_cb,
2205	interval => 10,	2917	);
2206	cb => sub {	2918	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	2919
2208	write_runtime	2920	BDB::set_sync_prepare {
2209	or warn "ERROR: unable to write runtime file: $!";	2921	my $status;
		2922	my $current = $Coro::current;
		2923	(
		2924	sub {
		2925	$status = $!;
		2926	$current->ready; undef $current;
		2927	},
		2928	sub {
		2929	Coro::schedule while defined $current;
		2930	$! = $status;
		2931	},
		2932	)
		2933	};
		2934
		2935	unless ($DB_ENV) {
		2936	$DB_ENV = BDB::db_env_create;
		2937
		2938	cf::sync_job {
		2939	eval {
		2940	BDB::db_env_open
		2941	$DB_ENV,
		2942	$BDBDIR,
		2943	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2944	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2945	0666;
		2946
		2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2948
		2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2950	$DB_ENV->set_lk_detect;
		2951	};
		2952
		2953	cf::cleanup "db_env_open(db): $@" if $@;
2210	})->();	2954	};
2211	},	2955	}
2212	);	2956	}
		2957
		2958	{
		2959	IO::AIO::min_parallel 8;
		2960
		2961	undef $Coro::AIO::WATCHER;
		2962	IO::AIO::max_poll_time $TICK * 0.1;
		2963	$AIO_POLL_WATCHER = Event->io (
		2964	reentrant => 0,
		2965	data => WF_AUTOCANCEL,
		2966	fd => IO::AIO::poll_fileno,
		2967	poll => 'r',
		2968	prio => 6,
		2969	cb => \&IO::AIO::poll_cb,
		2970	);
		2971	}
		2972
		2973	my $_log_backtrace;
		2974
		2975	sub _log_backtrace {
		2976	my ($msg, @addr) = @_;
		2977
		2978	$msg =~ s/\n//;
		2979
		2980	# limit the # of concurrent backtraces
		2981	if ($_log_backtrace < 2) {
		2982	++$_log_backtrace;
		2983	async {
		2984	my @bt = fork_call {
		2985	@addr = map { sprintf "%x", $_ } @addr;
		2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2988	or die "addr2line: $!";
		2989
		2990	my @funcs;
		2991	my @res = <$fh>;
		2992	chomp for @res;
		2993	while (@res) {
		2994	my ($func, $line) = splice @res, 0, 2, ();
		2995	push @funcs, "[$func] $line";
		2996	}
		2997
		2998	@funcs
		2999	};
		3000
		3001	LOG llevInfo, "[ABT] $msg\n";
		3002	LOG llevInfo, "[ABT] $_\n" for @bt;
		3003	--$_log_backtrace;
		3004	};
		3005	} else {
		3006	LOG llevInfo, "[ABT] $msg\n";
		3007	LOG llevInfo, "[ABT] [suppressed]\n";
		3008	}
		3009	}
		3010
		3011	# load additional modules
		3012	use cf::pod;
2213		3013
2214	END { cf::emergency_save }	3014	END { cf::emergency_save }
2215		3015
2216	1	3016	1
2217		3017

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