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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.134 by root, Thu Jan 4 17:28:49 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 $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
56		98
57	binmode STDOUT;	99	binmode STDOUT;
58	binmode STDERR;	100	binmode STDERR;
59		101
60	# read virtual server time, if available	102	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
65	}	107	}
66		108
67	mkdir cf::localdir;	109	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		111
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
76		115
77	#############################################################################	116	#############################################################################
78		117
79	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
80		119
…		…
87	=item $cf::RUNTIME	126	=item $cf::RUNTIME
88		127
89	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
90	every server tick.	129	every server tick.
91		130
92	=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
93		134
94	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		139
97	=item $cf::NOW	140	=item $cf::NOW
98		141
99	The time of the last (current) server tick.	142	The time of the last (current) server tick.
100		143
101	=item $cf::TICK	144	=item $cf::TICK
102		145
103	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.
104		157
105	=item %cf::CFG	158	=item %cf::CFG
106		159
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		168
110	=back	169	=back
111		170
112	=cut	171	=cut
113		172
114	BEGIN {	173	BEGIN {
115	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	175	my $msg = join "", @_;
117	utf8::encode $msg;
118		176
119	$msg .= "\n"	177	$msg .= "\n"
120	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
121		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
123	};	184	};
124	}	185	}
125		186
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		206
146	$Event::DIED = sub {	207	$Event::DIED = sub {
147	warn "error in event callback: @_";	208	warn "error in event callback: @_";
148	};	209	};
149		210
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
155		212
156	=over 4	213	=over 4
157		214
158	=cut	215	=item dumpval $ref
159		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
160	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
161		239
162	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
163		241
164	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
165		243
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
174		245
175	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
176		247
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183
184	=item my $guard = cf::guard { BLOCK }
185
186	Run the given callback when the guard object gets destroyed (useful for
187	coroutine cancellations).
188
189	You can call C<< ->cancel >> on the guard object to stop the block from
190	being executed.
191
192	=cut
193
194	sub guard(&) {
195	bless \(my $cb = $_[0]), cf::guard::;
196	}
197
198	sub cf::guard::cancel {
199	${$_[0]} = sub { };
200	}
201
202	sub cf::guard::DESTROY {
203	${$_[0]}->();
204	}
205
206	=item cf::lock_wait $string	248	=item cf::lock_wait $string
207		249
208	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
209		251
210	=item my $lock = cf::lock_acquire $string	252	=item my $lock = cf::lock_acquire $string
211		253
212	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
213	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,
214	for example when the coroutine gets canceled), the lock is automatically	256	for example when the coroutine gets canceled), the lock is automatically
215	returned.	257	returned.
216		258
217	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
218	uses map_find and cf::map::load 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.
219		265
220	=cut	266	=cut
221		267
222	our %LOCK;	268	our %LOCK;
223		269
…		…
237	# wait, to be sure we are not locked	283	# wait, to be sure we are not locked
238	lock_wait $key;	284	lock_wait $key;
239		285
240	$LOCK{$key} = [];	286	$LOCK{$key} = [];
241		287
242	cf::guard {	288	Coro::guard {
243	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
244	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
245	}	291	}
246	}	292	}
247		293
248	=item cf::async { BLOCK }	294	sub lock_active($) {
249
250	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
251	error instead of exiting the server in case of a problem.
252
253	=cut
254
255	sub async(&) {
256	my ($cb) = @_;	295	my ($key) = @_;
257		296
258	Coro::async {	297	! ! $LOCK{$key}
259	eval { $cb->() };
260	warn $@ if $@;
261	}
262	}	298	}
263		299
264	sub freeze_mainloop {	300	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
266		302
267	my $guard = guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
268	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
269	$guard	307	$guard
270	}	308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
271		319
272	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
273		321
274	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
275	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
284		332
285	sub sync_job(&) {	333	sub sync_job(&) {
286	my ($job) = @_;	334	my ($job) = @_;
287		335
288	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
289	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
290	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
291		341
292	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
293	# (but this is cancel-safe)	343	# (but this is cancel-safe)
294	my $freeze_guard = freeze_mainloop;	344	my $freeze_guard = freeze_mainloop;
295		345
296	my $busy = 1;	346	my $busy = 1;
297	my @res;	347	my @res;
298		348
299	(Coro::async {	349	(async {
300	@res = eval { $job->() };	350	@res = eval { $job->() };
301	warn $@ if $@;	351	warn $@ if $@;
302	undef $busy;	352	undef $busy;
303	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
304		354
305	while ($busy) {	355	while ($busy) {
306	Coro::cede_notself;	356	Coro::cede or Event::one_event;
307	Event::one_event unless Coro::nready;
308	}	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
309		365
310	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
311	} else {	367	} else {
312	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
313		369
314	$job->()	370	$job->()
315	}	371	}
316	}	372	}
317		373
318	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
319		375
320	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
321	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
322		378
323	=cut	379	=cut
324		380
325	sub coro(&) {	381	sub async_ext(&) {
326	my $cb = shift;	382	my $cb = shift;
327		383
328	my $coro = &cf::async ($cb);	384	my $coro = &Coro::async ($cb);
329		385
330	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
331	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
332	});	388	});
333	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
334		390
335	$coro	391	$coro
336	}	392	}
337		393
338	sub write_runtime {	394	sub write_runtime {
339	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";
340		405
341	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
342	or return;	407	or return;
343		408
		409	my $value = $cf::RUNTIME + 90 + 10;
344	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
345	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
346	and return;	414	and return;
347		415
		416	# always fsync - this file is important
348	aio_fsync $fh	417	aio_fsync $fh
349	and return;	418	and return;
350		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
351	close $fh	423	close $fh
352	or return;	424	or return;
353		425
354	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
355	and return;	427	and return;
356		428
		429	warn "runtime file written.\n";#d#
		430
357	1	431	1
358	}	432	}
359		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
360	=back	445	=back
361		446
362	=cut	447	=cut
363
364	#############################################################################
365
366	package cf::path;
367
368	sub new {
369	my ($class, $path, $base) = @_;
370
371	$path = $path->as_string if ref $path;
372
373	my $self = bless { }, $class;
374
375	# {... are special paths that are not touched
376	# ?xxx/... are special absolute paths
377	# ?random/... random maps
378	# /! non-realised random map exit
379	# /... normal maps
380	# ~/... per-player maps without a specific player (DO NOT USE)
381	# ~user/... per-player map of a specific user
382
383	if ($path =~ /^{/) {
384	# fine as it is
385	} elsif ($path =~ s{^\?random/}{}) {
386	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
387	$self->{random} = cf::from_json $data;
388	} else {
389	if ($path =~ s{^~([^/]+)?}{}) {
390	$self->{user_rel} = 1;
391
392	if (defined $1) {
393	$self->{user} = $1;
394	} elsif ($base =~ m{^~([^/]+)/}) {
395	$self->{user} = $1;
396	} else {
397	warn "cannot resolve user-relative path without user <$path,$base>\n";
398	}
399	} elsif ($path =~ /^\//) {
400	# already absolute
401	} else {
402	$base =~ s{[^/]+/?$}{};
403	return $class->new ("$base/$path");
404	}
405
406	for ($path) {
407	redo if s{/\.?/}{/};
408	redo if s{/[^/]+/\.\./}{/};
409	}
410	}
411
412	$self->{path} = $path;
413
414	$self
415	}
416
417	# the name / primary key / in-game path
418	sub as_string {
419	my ($self) = @_;
420
421	$self->{user_rel} ? "~$self->{user}$self->{path}"
422	: $self->{random} ? "?random/$self->{path}"
423	: $self->{path}
424	}
425
426	# the displayed name, this is a one way mapping
427	sub visible_name {
428	my ($self) = @_;
429
430	# if (my $rmp = $self->{random}) {
431	# # todo: be more intelligent about this
432	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
433	# } else {
434	$self->as_string
435	# }
436	}
437
438	# escape the /'s in the path
439	sub _escaped_path {
440	# ∕ is U+2215
441	(my $path = $_[0]{path}) =~ s/\//∕/g;
442	$path
443	}
444
445	# the original (read-only) location
446	sub load_path {
447	my ($self) = @_;
448
449	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
450	}
451
452	# the temporary/swap location
453	sub save_path {
454	my ($self) = @_;
455
456	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
457	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
458	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
459	}
460
461	# the unique path, might be eq to save_path
462	sub uniq_path {
463	my ($self) = @_;
464
465	$self->{user_rel} || $self->{random}
466	? undef
467	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
468	}
469
470	# return random map parameters, or undef
471	sub random_map_params {
472	my ($self) = @_;
473
474	$self->{random}
475	}
476
477	# this is somewhat ugly, but style maps do need special treatment
478	sub is_style_map {
479	$_[0]{path} =~ m{^/styles/}
480	}
481
482	package cf;
483		448
484	#############################################################################	449	#############################################################################
485		450
486	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
487		452
…		…
613	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
614	our @CB_MAP = ();	579	our @CB_MAP = ();
615		580
616	my %attachment;	581	my %attachment;
617		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
618	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
619	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
620		591
621	use sort 'stable';	592	use sort 'stable';
622		593
…		…
656	$registry = $CB_TYPE[$object_type] ||= [];	627	$registry = $CB_TYPE[$object_type] ||= [];
657		628
658	} elsif ($type eq "subtype") {	629	} elsif ($type eq "subtype") {
659	defined $object_type or Carp::croak "subtype specified without type";	630	defined $object_type or Carp::croak "subtype specified without type";
660	my $object_subtype = shift @arg;	631	my $object_subtype = shift @arg;
661	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
662		633
663	} elsif ($type eq "package") {	634	} elsif ($type eq "package") {
664	my $pkg = shift @arg;	635	my $pkg = shift @arg;
665		636
666	while (my ($name, $id) = each %cb_id) {	637	while (my ($name, $id) = each %cb_id) {
…		…
707	if (ref $_[0]) {	678	if (ref $_[0]) {
708	_object_attach @_;	679	_object_attach @_;
709	} else {	680	} else {
710	_attach shift->_attach_registry, @_;	681	_attach shift->_attach_registry, @_;
711	}	682	}
		683	_recalc_want;
712	};	684	};
713		685
714	# all those should be optimised	686	# all those should be optimised
715	sub cf::attachable::detach {	687	sub cf::attachable::detach {
716	my ($obj, $name) = @_;	688	my ($obj, $name) = @_;
…		…
719	delete $obj->{_attachment}{$name};	691	delete $obj->{_attachment}{$name};
720	reattach ($obj);	692	reattach ($obj);
721	} else {	693	} else {
722	Carp::croak "cannot, currently, detach class attachments";	694	Carp::croak "cannot, currently, detach class attachments";
723	}	695	}
		696	_recalc_want;
724	};	697	};
725		698
726	sub cf::attachable::attached {	699	sub cf::attachable::attached {
727	my ($obj, $name) = @_;	700	my ($obj, $name) = @_;
728		701
…		…
793	# object support	766	# object support
794		767
795	sub reattach {	768	sub reattach {
796	# basically do the same as instantiate, without calling instantiate	769	# basically do the same as instantiate, without calling instantiate
797	my ($obj) = @_;	770	my ($obj) = @_;
		771
		772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
798		773
799	my $registry = $obj->registry;	774	my $registry = $obj->registry;
800		775
801	@$registry = ();	776	@$registry = ();
802		777
…		…
849	$filename, length $$rdata, scalar @$objs;	824	$filename, length $$rdata, scalar @$objs;
850		825
851	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	827	chmod SAVE_MODE, $fh;
853	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
854	aio_fsync $fh;	829	aio_fsync $fh if $cf::USE_FSYNC;
855	close $fh;	830	close $fh;
856		831
857	if (@$objs) {	832	if (@$objs) {
858	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) {
859	chmod SAVE_MODE, $fh;	834	chmod SAVE_MODE, $fh;
860	my $data = Storable::nfreeze { version => 1, objs => $objs };	835	my $data = Storable::nfreeze { version => 1, objs => $objs };
861	aio_write $fh, 0, (length $data), $data, 0;	836	aio_write $fh, 0, (length $data), $data, 0;
862	aio_fsync $fh;	837	aio_fsync $fh if $cf::USE_FSYNC;
863	close $fh;	838	close $fh;
864	aio_rename "$filename.pst~", "$filename.pst";	839	aio_rename "$filename.pst~", "$filename.pst";
865	}	840	}
866	} else {	841	} else {
867	aio_unlink "$filename.pst";	842	aio_unlink "$filename.pst";
…		…
934	=cut	909	=cut
935		910
936	sub register_extcmd {	911	sub register_extcmd {
937	my ($name, $cb) = @_;	912	my ($name, $cb) = @_;
938		913
939	my $caller = caller;
940	#warn "registering extcmd '$name' to '$caller'";
941
942	$EXTCMD{$name} = [$cb, $caller];	914	$EXTCMD{$name} = $cb;
943	}	915	}
944		916
945	cf::player->attach (	917	cf::player->attach (
946	on_command => sub {	918	on_command => sub {
947	my ($pl, $name, $params) = @_;	919	my ($pl, $name, $params) = @_;
…		…
960		932
961	my $msg = eval { from_json $buf };	933	my $msg = eval { from_json $buf };
962		934
963	if (ref $msg) {	935	if (ref $msg) {
964	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
965	if (my %reply = $cb->[0]->($pl, $msg)) {	937	if (my %reply = $cb->($pl, $msg)) {
966	$pl->ext_reply ($msg->{msgid}, %reply);	938	$pl->ext_reply ($msg->{msgid}, %reply);
967	}	939	}
968	}	940	}
969	} else {	941	} else {
970	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
972		944
973	cf::override;	945	cf::override;
974	},	946	},
975	);	947	);
976		948
977	sub register {
978	my ($base, $pkg) = @_;
979
980	#TODO
981	}
982
983	sub load_extension {	949	sub load_extension {
984	my ($path) = @_;	950	my ($path) = @_;
985		951
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;	953	my $base = $1;
988	my $pkg = $1;	954	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;	955	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";	956	$pkg = "ext::$pkg";
991		957
992	warn "loading '$path' into '$pkg'\n";	958	warn "... loading '$path' into '$pkg'\n";
993		959
994	open my $fh, "<:utf8", $path	960	open my $fh, "<:utf8", $path
995	or die "$path: $!";	961	or die "$path: $!";
996		962
997	my $source =	963	my $source =
998	"package $pkg; use strict; use utf8;\n"	964	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"	965	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })	966	. (do { local $/; <$fh> })
1001	. "\n};\n1";	967	. "\n};\n1";
1002		968
1003	eval $source	969	unless (eval $source) {
1004	or die $@ ? "$path: $@\n"	970	my $msg = $@ ? "$path: $@\n"
1005	: "extension disabled.\n";	971	: "extension disabled.\n";
1006		972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1007	push @exts, $pkg;	973	warn $@;
1008	$ext_pkg{$base} = $pkg;	974	warn "mandatory extension failed to load, exiting.\n";
1009		975	exit 1;
1010	# no strict 'refs';	976	}
1011	# @{"$pkg\::ISA"} = ext::;	977	die $@;
1012
1013	register $base, $pkg;
1014	}
1015
1016	sub unload_extension {
1017	my ($pkg) = @_;
1018
1019	warn "removing extension $pkg\n";
1020
1021	# remove hooks
1022	#TODO
1023	# for my $idx (0 .. $#PLUGIN_EVENT) {
1024	# delete $hook[$idx]{$pkg};
1025	# }	978	}
1026		979
1027	# remove commands	980	push @EXTS, $pkg;
1028	for my $name (keys %COMMAND) {
1029	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1030
1031	if (@cb) {
1032	$COMMAND{$name} = \@cb;
1033	} else {
1034	delete $COMMAND{$name};
1035	}
1036	}
1037
1038	# remove extcmds
1039	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1040	delete $EXTCMD{$name};
1041	}
1042
1043	if (my $cb = $pkg->can ("unload")) {
1044	eval {
1045	$cb->($pkg);
1046	1
1047	} or warn "$pkg unloaded, but with errors: $@";
1048	}
1049
1050	Symbol::delete_package $pkg;
1051	}	981	}
1052		982
1053	sub load_extensions {	983	sub load_extensions {
1054	for my $ext (<$LIBDIR/*.ext>) {	984	for my $ext (<$LIBDIR/*.ext>) {
1055	next unless -r $ext;	985	next unless -r $ext;
…		…
1059	} or warn "$ext not loaded: $@";	989	} or warn "$ext not loaded: $@";
1060	}	990	}
1061	}	991	}
1062		992
1063	#############################################################################	993	#############################################################################
1064	# load/save/clean perl data associated with a map
1065
1066	*cf::mapsupport::on_clean = sub {
1067	my ($map) = @_;
1068
1069	my $path = $map->tmpname;
1070	defined $path or return;
1071
1072	unlink "$path.pst";
1073	};
1074
1075	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1076
1077	#############################################################################
1078	# load/save perl data associated with player->ob objects
1079
1080	sub all_objects(@) {
1081	@_, map all_objects ($_->inv), @_
1082	}
1083
1084	# TODO: compatibility cruft, remove when no longer needed
1085	cf::player->attach (
1086	on_load => sub {
1087	my ($pl, $path) = @_;
1088
1089	for my $o (all_objects $pl->ob) {
1090	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1091	$o->set_ob_key_value ("_perl_data");
1092
1093	%$o = %{ Storable::thaw pack "H*", $value };
1094	}
1095	}
1096	},
1097	);
1098
1099	#############################################################################
1100		994
1101	=head2 CORE EXTENSIONS	995	=head2 CORE EXTENSIONS
1102		996
1103	Functions and methods that extend core crossfire objects.	997	Functions and methods that extend core crossfire objects.
1104		998
		999	=cut
		1000
		1001	package cf::player;
		1002
		1003	use Coro::AIO;
		1004
1105	=head3 cf::player	1005	=head3 cf::player
1106		1006
1107	=over 4	1007	=over 4
1108		1008
1109	=item cf::player::exists $login	1009	=item cf::player::find $login
1110		1010
1111	Returns true when the given account exists.	1011	Returns the given player object, loading it if necessary (might block).
1112		1012
1113	=cut	1013	=cut
1114		1014
1115	sub cf::player::exists($) {	1015	sub playerdir($) {
1116	cf::player::find $_[0]	1016	"$PLAYERDIR/"
1117	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1017	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1118	}	1018	}
1119		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
1120	=item $player->ext_reply ($msgid, $msgtype, %msg)	1191	=item $player->ext_reply ($msgid, %msg)
1121		1192
1122	Sends an ext reply to the player.	1193	Sends an ext reply to the player.
1123		1194
1124	=cut	1195	=cut
1125		1196
1126	sub cf::player::ext_reply($$$%) {	1197	sub ext_reply($$%) {
1127	my ($self, $id, %msg) = @_;	1198	my ($self, $id, %msg) = @_;
1128		1199
1129	$msg{msgid} = $id;	1200	$msg{msgid} = $id;
1130		1201
1131	$self->send ("ext " . to_json \%msg);	1202	$self->send ("ext " . cf::to_json \%msg);
		1203	}
		1204
		1205	=item $player->ext_event ($type, %msg)
		1206
		1207	Sends an ext event to the client.
		1208
		1209	=cut
		1210
		1211	sub ext_event($$%) {
		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
1132	}	1244	}
1133		1245
1134	=back	1246	=back
1135
1136		1247
1137	=head3 cf::map	1248	=head3 cf::map
1138		1249
1139	=over 4	1250	=over 4
1140		1251
…		…
1143	package cf::map;	1254	package cf::map;
1144		1255
1145	use Fcntl;	1256	use Fcntl;
1146	use Coro::AIO;	1257	use Coro::AIO;
1147		1258
		1259	use overload
		1260	'""' => \&as_string,
		1261	fallback => 1;
		1262
1148	our $MAX_RESET = 3600;	1263	our $MAX_RESET = 3600;
1149	our $DEFAULT_RESET = 3000;	1264	our $DEFAULT_RESET = 3000;
1150		1265
1151	sub generate_random_map {	1266	sub generate_random_map {
1152	my ($path, $rmp) = @_;	1267	my ($self, $rmp) = @_;
1153
1154	# mit "rum" bekleckern, nicht	1268	# mit "rum" bekleckern, nicht
1155	cf::map::_create_random_map	1269	$self->_create_random_map (
1156	$path,
1157	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1158	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1159	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1160	$rmp->{exit_on_final_map},	1273	$rmp->{exit_on_final_map},
1161	$rmp->{xsize}, $rmp->{ysize},	1274	$rmp->{xsize}, $rmp->{ysize},
1162	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1163	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1164	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1165	$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},
1166	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1167	(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"
1168	}	1411	}
1169		1412
1170	# and all this just because we cannot iterate over	1413	# and all this just because we cannot iterate over
1171	# all maps in C++...	1414	# all maps in C++...
1172	sub change_all_map_light {	1415	sub change_all_map_light {
…		…
1174		1417
1175	$_->change_map_light ($change)	1418	$_->change_map_light ($change)
1176	for grep $_->outdoor, values %cf::MAP;	1419	for grep $_->outdoor, values %cf::MAP;
1177	}	1420	}
1178		1421
		1422	sub unlink_save {
		1423	my ($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
1179	sub try_load_header($) {	1430	sub load_header_from($) {
1180	my ($path) = @_;	1431	my ($self, $path) = @_;
1181		1432
1182	utf8::encode $path;	1433	utf8::encode $path;
1183	aio_open $path, O_RDONLY, 0	1434	#aio_open $path, O_RDONLY, 0
		1435	# or return;
		1436
		1437	$self->_load_header ($path)
1184	or return;	1438	or return;
1185		1439
1186	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
1187	or return;	1483	or return;
		1484	$self->prepare_orig;
		1485	}
1188		1486
1189	$map->load_header ($path)	1487	$self->default_region (cf::region::find_by_path $self->{path})
1190	or return;	1488	unless $self->default_region;
1191		1489
1192	$map->{load_path} = $path;	1490	1
1193
1194	$map
1195	}	1491	}
1196		1492
1197	sub find;	1493	sub find;
1198	sub find {	1494	sub find {
1199	my ($path, $origin) = @_;	1495	my ($path, $origin) = @_;
1200		1496
1201	#warn "find<$path,$origin>\n";#d#
1202
1203	$path = new cf::path $path, $origin && $origin->path;	1497	$path = normalise $path, $origin && $origin->path;
1204	my $key = $path->as_string;
1205		1498
1206	cf::lock_wait "map_find:$key";	1499	cf::lock_wait "map_find:$path";
1207		1500
1208	$cf::MAP{$key} || do {	1501	$cf::MAP{$path} || do {
1209	my $guard = cf::lock_acquire "map_find:$key";	1502	my $guard = cf::lock_acquire "map_find:$path";
1210		1503	my $map = new_from_path cf::map $path
1211	# do it the slow way
1212	my $map = try_load_header $path->save_path;
1213
1214	Coro::cede;
1215
1216	if ($map) {
1217	$map->last_access ((delete $map->{last_access})
1218	|| $cf::RUNTIME); #d#
1219	# safety
1220	$map->{instantiate_time} = $cf::RUNTIME
1221	if $map->{instantiate_time} > $cf::RUNTIME;
1222	} else {
1223	if (my $rmp = $path->random_map_params) {
1224	$map = generate_random_map $key, $rmp;
1225	} else {
1226	$map = try_load_header $path->load_path;
1227	}
1228
1229	$map or return;	1504	or return;
1230		1505
1231	$map->{load_original} = 1;
1232	$map->{instantiate_time} = $cf::RUNTIME;
1233	$map->last_access ($cf::RUNTIME);
1234	$map->instantiate;
1235
1236	# per-player maps become, after loading, normal maps
1237	$map->per_player (0) if $path->{user_rel};
1238	}
1239
1240	$map->path ($key);
1241	$map->{path} = $path;
1242	$map->{last_save} = $cf::RUNTIME;	1506	$map->{last_save} = $cf::RUNTIME;
1243		1507
1244	Coro::cede;	1508	$map->load_header
		1509	or return;
1245		1510
1246	if ($map->should_reset) {	1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1512	# doing this can freeze the server in a sync job, obviously
		1513	#$cf::WAIT_FOR_TICK->wait;
1247	$map->reset;	1514	$map->reset;
1248	undef $guard;	1515	undef $guard;
1249	$map = find $path	1516	return find $path;
1250	or return;
1251	}	1517	}
1252		1518
1253	$cf::MAP{$key} = $map	1519	$cf::MAP{$path} = $map
1254	}	1520	}
1255	}	1521	}
		1522
		1523	sub pre_load { }
		1524	sub post_load { }
1256		1525
1257	sub load {	1526	sub load {
1258	my ($self) = @_;	1527	my ($self) = @_;
1259		1528
		1529	local $self->{deny_reset} = 1; # loading can take a long time
		1530
1260	my $path = $self->{path};	1531	my $path = $self->{path};
		1532
		1533	{
1261	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1534	my $guard = cf::lock_acquire "map_load:$path";
1262		1535
1263	return if $self->in_memory != cf::MAP_SWAPPED;	1536	return if $self->in_memory != cf::MAP_SWAPPED;
1264		1537
1265	$self->in_memory (cf::MAP_LOADING);	1538	$self->in_memory (cf::MAP_LOADING);
1266		1539
1267	$self->alloc;	1540	$self->alloc;
		1541
		1542	$self->pre_load;
		1543	Coro::cede;
		1544
1268	$self->load_objects ($self->{load_path}, 1)	1545	$self->_load_objects ($self->{load_path}, 1)
1269	or return;	1546	or return;
1270		1547
1271	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1272	if delete $self->{load_original};	1549	if delete $self->{load_original};
1273		1550
1274	if (my $uniq = $path->uniq_path) {	1551	if (my $uniq = $self->uniq_path) {
1275	utf8::encode $uniq;	1552	utf8::encode $uniq;
1276	if (aio_open $uniq, O_RDONLY, 0) {	1553	if (aio_open $uniq, O_RDONLY, 0) {
1277	$self->clear_unique_items;	1554	$self->clear_unique_items;
1278	$self->load_objects ($uniq, 0);	1555	$self->_load_objects ($uniq, 0);
1279	}	1556	}
1280	}	1557	}
1281		1558
1282	Coro::cede;	1559	Coro::cede;
1283
1284	# now do the right thing for maps	1560	# now do the right thing for maps
1285	$self->link_multipart_objects;	1561	$self->link_multipart_objects;
1286
1287	if ($self->{path}->is_style_map) {
1288	$self->{deny_save} = 1;
1289	$self->{deny_reset} = 1;
1290	} else {
1291	$self->fix_auto_apply;
1292	$self->decay_objects;
1293	$self->update_buttons;
1294	$self->set_darkness_map;
1295	$self->difficulty ($self->estimate_difficulty)	1562	$self->difficulty ($self->estimate_difficulty)
1296	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;
1297	$self->activate;	1573	$self->activate;
1298	}	1574	}
1299		1575
1300	Coro::cede;
1301
1302	$self->in_memory (cf::MAP_IN_MEMORY);	1576	$self->in_memory (cf::MAP_IN_MEMORY);
		1577	}
		1578
		1579	$self->post_load;
		1580	}
		1581
		1582	sub customise_for {
		1583	my ($self, $ob) = @_;
		1584
		1585	return find "~" . $ob->name . "/" . $self->{path}
		1586	if $self->per_player;
		1587
		1588	$self
		1589	}
		1590
		1591	# find and load all maps in the 3x3 area around a map
		1592	sub load_diag {
		1593	my ($map) = @_;
		1594
		1595	my @diag; # diagonal neighbours
		1596
		1597	for (0 .. 3) {
		1598	my $neigh = $map->tile_path ($_)
		1599	or next;
		1600	$neigh = find $neigh, $map
		1601	or next;
		1602	$neigh->load;
		1603
		1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1606	}
		1607
		1608	for (@diag) {
		1609	my $neigh = find @$_
		1610	or next;
		1611	$neigh->load;
		1612	}
1303	}	1613	}
1304		1614
1305	sub find_sync {	1615	sub find_sync {
1306	my ($path, $origin) = @_;	1616	my ($path, $origin) = @_;
1307		1617
1308	cf::sync_job { cf::map::find $path, $origin }	1618	cf::sync_job { find $path, $origin }
1309	}	1619	}
1310		1620
1311	sub do_load_sync {	1621	sub do_load_sync {
1312	my ($map) = @_;	1622	my ($map) = @_;
1313		1623
1314	cf::sync_job { $map->load };	1624	cf::sync_job { $map->load };
1315	}	1625	}
1316		1626
		1627	our %MAP_PREFETCH;
		1628	our $MAP_PREFETCHER = undef;
		1629
		1630	sub find_async {
		1631	my ($path, $origin) = @_;
		1632
		1633	$path = normalise $path, $origin && $origin->{path};
		1634
		1635	if (my $map = $cf::MAP{$path}) {
		1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1637	}
		1638
		1639	undef $MAP_PREFETCH{$path};
		1640	$MAP_PREFETCHER ||= cf::async {
		1641	while (%MAP_PREFETCH) {
		1642	for my $path (keys %MAP_PREFETCH) {
		1643	my $map = find $path
		1644	or next;
		1645	$map->load;
		1646
		1647	delete $MAP_PREFETCH{$path};
		1648	}
		1649	}
		1650	undef $MAP_PREFETCHER;
		1651	};
		1652	$MAP_PREFETCHER->prio (6);
		1653
		1654	()
		1655	}
		1656
1317	sub save {	1657	sub save {
1318	my ($self) = @_;	1658	my ($self) = @_;
1319		1659
		1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1661
1320	$self->{last_save} = $cf::RUNTIME;	1662	$self->{last_save} = $cf::RUNTIME;
1321		1663
1322	return unless $self->dirty;	1664	return unless $self->dirty;
1323		1665
1324	my $save = $self->{path}->save_path; utf8::encode $save;	1666	my $save = $self->save_path; utf8::encode $save;
1325	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1667	my $uniq = $self->uniq_path; utf8::encode $uniq;
1326		1668
1327	$self->{load_path} = $save;	1669	$self->{load_path} = $save;
1328		1670
1329	return if $self->{deny_save};	1671	return if $self->{deny_save};
1330		1672
1331	local $self->{last_access} = $self->last_access;#d#	1673	local $self->{last_access} = $self->last_access;#d#
1332		1674
		1675	cf::async {
		1676	$_->contr->save for $self->players;
		1677	};
		1678
1333	if ($uniq) {	1679	if ($uniq) {
1334	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1335	$self->save_objects ($uniq, cf::IO_UNIQUES);	1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1336	} else {	1682	} else {
1337	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1338	}	1684	}
1339	}	1685	}
1340		1686
1341	sub swap_out {	1687	sub swap_out {
1342	my ($self) = @_;	1688	my ($self) = @_;
1343		1689
1344	# save first because save cedes	1690	# save first because save cedes
1345	$self->save;	1691	$self->save;
		1692
		1693	my $lock = cf::lock_acquire "map_data:" . $self->path;
1346		1694
1347	return if $self->players;	1695	return if $self->players;
1348	return if $self->in_memory != cf::MAP_IN_MEMORY;	1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1349	return if $self->{deny_save};	1697	return if $self->{deny_save};
1350		1698
…		…
1354		1702
1355	sub reset_at {	1703	sub reset_at {
1356	my ($self) = @_;	1704	my ($self) = @_;
1357		1705
1358	# TODO: safety, remove and allow resettable per-player maps	1706	# TODO: safety, remove and allow resettable per-player maps
1359	return 1e99 if $self->{path}{user_rel};	1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1360	return 1e99 if $self->{deny_reset};	1708	return 1e99 if $self->{deny_reset};
1361		1709
1362	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1363	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1364		1712
…		…
1369	my ($self) = @_;	1717	my ($self) = @_;
1370		1718
1371	$self->reset_at <= $cf::RUNTIME	1719	$self->reset_at <= $cf::RUNTIME
1372	}	1720	}
1373		1721
1374	sub unlink_save {
1375	my ($self) = @_;
1376
1377	utf8::encode (my $save = $self->{path}->save_path);
1378	aioreq_pri 3; IO::AIO::aio_unlink $save;
1379	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1380	}
1381
1382	sub rename {
1383	my ($self, $new_path) = @_;
1384
1385	$self->unlink_save;
1386
1387	delete $cf::MAP{$self->path};
1388	$self->{path} = new cf::path $new_path;
1389	$self->path ($self->{path}->as_string);
1390	$cf::MAP{$self->path} = $self;
1391
1392	$self->save;
1393	}
1394
1395	sub reset {	1722	sub reset {
1396	my ($self) = @_;	1723	my ($self) = @_;
1397		1724
		1725	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1726
1398	return if $self->players;	1727	return if $self->players;
1399	return if $self->{path}{user_rel};#d#	1728	return if $self->isa ("ext::map_per_player");#d#
1400		1729
1401	warn "resetting map ", $self->path;#d#	1730	warn "resetting map ", $self->path;#d#
1402		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
1403	delete $cf::MAP{$self->path};	1742	delete $cf::MAP{$self->path};
		1743
		1744	$self->clear;
1404		1745
1405	$_->clear_links_to ($self) for values %cf::MAP;	1746	$_->clear_links_to ($self) for values %cf::MAP;
1406		1747
1407	$self->unlink_save;	1748	$self->unlink_save;
1408	$self->destroy;	1749	$self->destroy;
…		…
1411	my $nuke_counter = "aaaa";	1752	my $nuke_counter = "aaaa";
1412		1753
1413	sub nuke {	1754	sub nuke {
1414	my ($self) = @_;	1755	my ($self) = @_;
1415		1756
		1757	delete $cf::MAP{$self->path};
		1758
		1759	$self->unlink_save;
		1760
		1761	bless $self, "cf::map";
		1762	delete $self->{deny_reset};
1416	$self->{deny_save} = 1;	1763	$self->{deny_save} = 1;
1417	$self->reset_timeout (1);	1764	$self->reset_timeout (1);
1418	$self->rename ("{nuke}/" . ($nuke_counter++));	1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1766
		1767	$cf::MAP{$self->path} = $self;
		1768
1419	$self->reset; # polite request, might not happen	1769	$self->reset; # polite request, might not happen
1420	}	1770	}
1421		1771
1422	sub customise_for {	1772	=item cf::map::unique_maps
1423	my ($map, $ob) = @_;
1424		1773
1425	if ($map->per_player) {	1774	Returns an arrayref of paths of all shared maps that have
1426	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1775	instantiated unique items. May block.
1427	}
1428		1776
1429	$map	1777	=cut
1430	}
1431		1778
1432	sub emergency_save {	1779	sub unique_maps() {
1433	my $freeze_guard = cf::freeze_mainloop;	1780	my $files = aio_readdir $UNIQUEDIR
		1781	or return;
1434		1782
1435	warn "enter emergency map save\n";	1783	my @paths;
1436		1784
1437	cf::sync_job {	1785	for (@$files) {
1438	warn "begin emergency map save\n";	1786	utf8::decode $_;
1439	$_->save for values %cf::MAP;	1787	next if /\.pst$/;
		1788	next unless /^$PATH_SEP/o;
		1789
		1790	push @paths, cf::map::normalise $_;
1440	};	1791	}
1441		1792
1442	warn "end emergency map save\n";	1793	\@paths
1443	}	1794	}
1444		1795
1445	package cf;	1796	package cf;
1446		1797
1447	=back	1798	=back
1448		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
1449		1826
1450	=head3 cf::object::player	1827	=head3 cf::object::player
1451		1828
1452	=over 4	1829	=over 4
1453		1830
…		…
1493		1870
1494	=item $player_object->enter_link	1871	=item $player_object->enter_link
1495		1872
1496	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}>).
1497		1874
1498	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
1499	I<MUST> call C<leave_link> as soon as possible, though.	1876	I<MUST> call C<leave_link> as soon as possible, though.
1500		1877
		1878	Will never block.
		1879
1501	=item $player_object->leave_link ($map, $x, $y)	1880	=item $player_object->leave_link ($map, $x, $y)
1502		1881
1503	Moves the player out of the specila link map onto the given map. If the	1882	Moves the player out of the special C<{link}> map onto the specified
1504	map is not valid (or omitted), the player will be moved back to the	1883	map. If the map is not valid (or omitted), the player will be moved back
1505	location he/she was before the call to C<enter_link>, or, if that fails,	1884	to the location he/she was before the call to C<enter_link>, or, if that
1506	to the emergency map position.	1885	fails, to the emergency map position.
1507		1886
1508	Might block.	1887	Might block.
1509		1888
1510	=cut	1889	=cut
		1890
		1891	sub link_map {
		1892	unless ($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	$LINK_MAP
		1899	}
1511		1900
1512	sub cf::object::player::enter_link {	1901	sub cf::object::player::enter_link {
1513	my ($self) = @_;	1902	my ($self) = @_;
1514		1903
1515	$self->deactivate_recursive;	1904	$self->deactivate_recursive;
1516		1905
1517	return if $self->map == $LINK_MAP;	1906	return if UNIVERSAL::isa $self->map, "ext::map_link";
1518		1907
1519	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1520	if $self->map;	1909	if $self->map;
1521		1910
1522	$self->enter_map ($LINK_MAP, 20, 20);	1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1523	}	1912	}
1524		1913
1525	sub cf::object::player::leave_link {	1914	sub cf::object::player::leave_link {
1526	my ($self, $map, $x, $y) = @_;	1915	my ($self, $map, $x, $y) = @_;
1527		1916
…		…
1545	# use -1 or undef as default coordinates, not 0, 0	1934	# use -1 or undef as default coordinates, not 0, 0
1546	($x, $y) = ($map->enter_x, $map->enter_y)	1935	($x, $y) = ($map->enter_x, $map->enter_y)
1547	if $x <=0 && $y <= 0;	1936	if $x <=0 && $y <= 0;
1548		1937
1549	$map->load;	1938	$map->load;
		1939	$map->load_diag;
1550		1940
		1941	return unless $self->contr->active;
1551	$self->activate_recursive;	1942	$self->activate_recursive;
		1943
		1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1552	$self->enter_map ($map, $x, $y);	1945	$self->enter_map ($map, $x, $y);
1553	}	1946	}
1554		1947
1555	cf::player->attach (	1948	cf::player->attach (
1556	on_logout => sub {	1949	on_logout => sub {
…		…
1568		1961
1569	# try to abort aborted map switching on player login :)	1962	# try to abort aborted map switching on player login :)
1570	# should happen only on crashes	1963	# should happen only on crashes
1571	if ($pl->ob->{_link_pos}) {	1964	if ($pl->ob->{_link_pos}) {
1572	$pl->ob->enter_link;	1965	$pl->ob->enter_link;
1573	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);
1574	# 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
1575	# 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
1576	Coro::Timer::sleep 1;	1973	Coro::Timer::sleep 1;
1577	$pl->ob->leave_link;	1974	$pl->ob->leave_link;
1578	};	1975	})->prio (2);
1579	}	1976	}
1580	},	1977	},
1581	);	1978	);
1582		1979
1583	=item $player_object->goto_map ($path, $x, $y)	1980	=item $player_object->goto ($path, $x, $y)
1584		1981
1585	=cut	1982	=cut
1586		1983
1587	sub cf::object::player::goto_map {	1984	sub cf::object::player::goto {
1588	my ($self, $path, $x, $y) = @_;	1985	my ($self, $path, $x, $y) = @_;
1589		1986
1590	$self->enter_link;	1987	$self->enter_link;
1591		1988
1592	(cf::async {	1989	(async {
1593	$path = new cf::path $path;	1990	my $map = eval {
1594
1595	my $map = cf::map::find $path->as_string;	1991	my $map = cf::map::find $path;
1596	$map = $map->customise_for ($self) if $map;	1992	$map = $map->customise_for ($self) if $map;
1597		1993	$map
1598	# warn "entering ", $map->path, " at ($x, $y)\n"	1994	} or
1599	# if $map;
1600
1601	$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);
1602		1996
1603	$self->leave_link ($map, $x, $y);	1997	$self->leave_link ($map, $x, $y);
1604	})->prio (1);	1998	})->prio (1);
1605	}	1999	}
1606		2000
…		…
1610		2004
1611	sub parse_random_map_params {	2005	sub parse_random_map_params {
1612	my ($spec) = @_;	2006	my ($spec) = @_;
1613		2007
1614	my $rmp = { # defaults	2008	my $rmp = { # defaults
1615	xsize => 10,	2009	xsize => (cf::rndm 15, 40),
1616	ysize => 10,	2010	ysize => (cf::rndm 15, 40),
		2011	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2012	#layout => string,
1617	};	2013	};
1618		2014
1619	for (split /\n/, $spec) {	2015	for (split /\n/, $spec) {
1620	my ($k, $v) = split /\s+/, $_, 2;	2016	my ($k, $v) = split /\s+/, $_, 2;
1621		2017
…		…
1625	$rmp	2021	$rmp
1626	}	2022	}
1627		2023
1628	sub prepare_random_map {	2024	sub prepare_random_map {
1629	my ($exit) = @_;	2025	my ($exit) = @_;
		2026
		2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
1630		2028
1631	# all this does is basically replace the /! path by	2029	# all this does is basically replace the /! path by
1632	# a new random map path (?random/...) with a seed	2030	# a new random map path (?random/...) with a seed
1633	# that depends on the exit object	2031	# that depends on the exit object
1634		2032
1635	my $rmp = parse_random_map_params $exit->msg;	2033	my $rmp = parse_random_map_params $exit->msg;
1636		2034
1637	if ($exit->map) {	2035	if ($exit->map) {
1638	$rmp->{region} = $exit->map->region_name;	2036	$rmp->{region} = $exit->region->name;
1639	$rmp->{origin_map} = $exit->map->path;	2037	$rmp->{origin_map} = $exit->map->path;
1640	$rmp->{origin_x} = $exit->x;	2038	$rmp->{origin_x} = $exit->x;
1641	$rmp->{origin_y} = $exit->y;	2039	$rmp->{origin_y} = $exit->y;
1642	}	2040	}
1643		2041
1644	$rmp->{random_seed} ||= $exit->random_seed;	2042	$rmp->{random_seed} ||= $exit->random_seed;
1645		2043
1646	my $data = cf::to_json $rmp;	2044	my $data = cf::to_json $rmp;
1647	my $md5 = Digest::MD5::md5_hex $data;	2045	my $md5 = Digest::MD5::md5_hex $data;
		2046	my $meta = "$RANDOMDIR/$md5.meta";
1648		2047
1649	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) {
1650	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;
1651		2052
1652	$exit->slaying ("?random/$md5");	2053	$exit->slaying ("?random/$md5");
1653	$exit->msg (undef);	2054	$exit->msg (undef);
1654	}	2055	}
1655	}	2056	}
…		…
1657	sub cf::object::player::enter_exit {	2058	sub cf::object::player::enter_exit {
1658	my ($self, $exit) = @_;	2059	my ($self, $exit) = @_;
1659		2060
1660	return unless $self->type == cf::PLAYER;	2061	return unless $self->type == cf::PLAYER;
1661		2062
		2063	if ($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
1662	$self->enter_link;	2074	$self->enter_link;
1663		2075
1664	(cf::async {	2076	(async {
1665	$self->deactivate_recursive; # just to be sure	2077	$self->deactivate_recursive; # just to be sure
1666	unless (eval {	2078	unless (eval {
1667	prepare_random_map $exit	2079	$self->goto ($slaying, $hp, $sp);
1668	if $exit->slaying eq "/!";
1669
1670	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1671	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1672		2080
1673	1;	2081	1;
1674	}) {	2082	}) {
1675	$self->message ("Something went wrong deep within the crossfire server. "	2083	$self->message ("Something went wrong deep within the crossfire server. "
1676	. "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. "
1677	. "Please report this to the dungeon master",	2085	. "Please report this to the dungeon master!",
1678	cf::NDI_UNIQUE | cf::NDI_RED);	2086	cf::NDI_UNIQUE | cf::NDI_RED);
1679		2087
1680	warn "ERROR in enter_exit: $@";	2088	warn "ERROR in enter_exit: $@";
1681	$self->leave_link;	2089	$self->leave_link;
1682	}	2090	}
1683	})->prio (1);	2091	})->prio (1);
…		…
1696		2104
1697	sub cf::client::send_drawinfo {	2105	sub cf::client::send_drawinfo {
1698	my ($self, $text, $flags) = @_;	2106	my ($self, $text, $flags) = @_;
1699		2107
1700	utf8::encode $text;	2108	utf8::encode $text;
1701	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1702	}	2110	}
1703		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	}
1704		2124
1705	=item $success = $client->query ($flags, "text", \&cb)	2125	=item $success = $client->query ($flags, "text", \&cb)
1706		2126
1707	Queues a query to the client, calling the given callback with	2127	Queues a query to the client, calling the given callback with
1708	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>,
…		…
1737	# get handled first	2157	# get handled first
1738	my $queue = delete $ns->{query_queue}	2158	my $queue = delete $ns->{query_queue}
1739	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
1740		2160
1741	(shift @$queue)->[1]->($msg);	2161	(shift @$queue)->[1]->($msg);
		2162	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1742		2163
1743	push @{ $ns->{query_queue} }, @$queue;	2164	push @{ $ns->{query_queue} }, @$queue;
1744		2165
1745	if (@{ $ns->{query_queue} } == @$queue) {	2166	if (@{ $ns->{query_queue} } == @$queue) {
1746	if (@$queue) {	2167	if (@$queue) {
…		…
1750	}	2171	}
1751	}	2172	}
1752	},	2173	},
1753	);	2174	);
1754		2175
1755	=item $client->coro (\&cb)	2176	=item $client->async (\&cb)
1756		2177
1757	Create a new coroutine, running the specified callback. The coroutine will	2178	Create a new coroutine, running the specified callback. The coroutine will
1758	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,
1759	or loss of connection).	2180	or loss of connection).
1760		2181
1761	=cut	2182	=cut
1762		2183
1763	sub cf::client::coro {	2184	sub cf::client::async {
1764	my ($self, $cb) = @_;	2185	my ($self, $cb) = @_;
1765		2186
1766	my $coro = &cf::async ($cb);	2187	my $coro = &Coro::async ($cb);
1767		2188
1768	$coro->on_destroy (sub {	2189	$coro->on_destroy (sub {
1769	delete $self->{_coro}{$coro+0};	2190	delete $self->{_coro}{$coro+0};
1770	});	2191	});
1771		2192
…		…
1804		2225
1805	# here we export the classes and methods available to script code	2226	# here we export the classes and methods available to script code
1806		2227
1807	=pod	2228	=pod
1808		2229
1809	The following fucntions and emthods are available within a safe environment:	2230	The following functions and methods are available within a safe environment:
1810		2231
1811	cf::object contr pay_amount pay_player map	2232	cf::object contr pay_amount pay_player map
1812	cf::object::player player	2233	cf::object::player player
1813	cf::player peaceful	2234	cf::player peaceful
1814	cf::map trigger	2235	cf::map trigger
…		…
1899	#############################################################################	2320	#############################################################################
1900		2321
1901	=head2 EXTENSION DATABASE SUPPORT	2322	=head2 EXTENSION DATABASE SUPPORT
1902		2323
1903	Crossfire maintains a very simple database for extension use. It can	2324	Crossfire maintains a very simple database for extension use. It can
1904	currently store anything that can be serialised using Storable, which	2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1905	excludes objects.	2326	convert to/from binary).
1906		2327
1907	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
1908	using it, it should be unique.	2329	using it, it should be unique.
1909		2330
1910	=over 4	2331	=over 4
1911		2332
1912	=item $hashref = cf::db_get $family
1913
1914	Return a hashref for use by the extension C<$family>, which can be
1915	modified. After modifications, you have to call C<cf::db_dirty> or
1916	C<cf::db_sync>.
1917
1918	=item $value = cf::db_get $family => $key	2333	=item $value = cf::db_get $family => $key
1919		2334
1920	Returns a single value from the database	2335	Returns a single value from the database.
1921
1922	=item cf::db_put $family => $hashref
1923
1924	Stores the given family hashref into the database. Updates are delayed, if
1925	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1926		2336
1927	=item cf::db_put $family => $key => $value	2337	=item cf::db_put $family => $key => $value
1928		2338
1929	Stores the given C<$value> in the family hash. Updates are delayed, if you	2339	Stores the given C<$value> in the family.
1930	want the data to be synced to disk immediately, use C<cf::db_sync>.
1931
1932	=item cf::db_dirty
1933
1934	Marks the database as dirty, to be updated at a later time.
1935
1936	=item cf::db_sync
1937
1938	Immediately write the database to disk I<if it is dirty>.
1939		2340
1940	=cut	2341	=cut
1941		2342
1942	our $DB;	2343	our $DB;
1943		2344
1944	{	2345	sub db_init {
1945	my $path = cf::localdir . "/database.pst";	2346	unless ($DB) {
		2347	$DB = BDB::db_create $DB_ENV;
1946		2348
1947	sub db_load() {	2349	cf::sync_job {
1948	$DB = stat $path ? Storable::retrieve $path : { };	2350	eval {
1949	}	2351	$DB->set_flags (BDB::CHKSUM);
1950		2352
1951	my $pid;	2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1952		2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1953	sub db_save() {	2355	cf::cleanup "db_open(db): $!" if $!;
1954	waitpid $pid, 0 if $pid;	2356	};
1955	if (0 == ($pid = fork)) {	2357	cf::cleanup "db_open(db): $@" if $@;
1956	$DB->{_meta}{version} = 1;
1957	Storable::nstore $DB, "$path~";
1958	rename "$path~", $path;
1959	cf::_exit 0 if defined $pid;
1960	}	2358	};
1961	}
1962
1963	my $dirty;
1964
1965	sub db_sync() {
1966	db_save if $dirty;
1967	undef $dirty;
1968	}
1969
1970	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1971	db_sync;
1972	});	2359	}
		2360	}
1973		2361
1974	sub db_dirty() {
1975	$dirty = 1;
1976	$idle->start;
1977	}
1978
1979	sub db_get($;$) {	2362	sub db_get($$) {
1980	@_ >= 2	2363	my $key = "$_[0]/$_[1]";
1981	? $DB->{$_[0]}{$_[1]}
1982	: ($DB->{$_[0]} ||= { })
1983	}
1984		2364
		2365	cf::sync_job {
		2366	BDB::db_get $DB, undef, $key, my $data;
		2367
		2368	$! ? ()
		2369	: $data
		2370	}
		2371	}
		2372
1985	sub db_put($$;$) {	2373	sub db_put($$$) {
1986	if (@_ >= 3) {	2374	BDB::dbreq_pri 4;
1987	$DB->{$_[0]}{$_[1]} = $_[2];	2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1988	} else {	2376	}
1989	$DB->{$_[0]} = $_[1];
1990	}
1991	db_dirty;
1992	}
1993		2377
1994	cf::global->attach (	2378	=item cf::cache $id => [$paths...], $processversion => $process
1995	prio => 10000,	2379
1996	on_cleanup => sub {	2380	Generic caching function that returns the value of the resource $id,
1997	db_sync;	2381	caching and regenerating as required.
		2382
		2383	This function can block.
		2384
		2385	=cut
		2386
		2387	sub cache {
		2388	my ($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 "$src->[$_]: $!";
1998	},	2410	}
1999	);	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"
2000	}	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
2001		2493
2002	#############################################################################	2494	#############################################################################
2003	# 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	}
2004		2583
2005	sub cfg_load {	2584	sub cfg_load {
2006	open my $fh, "<:utf8", cf::confdir . "/config"	2585	open my $fh, "<:utf8", "$CONFDIR/config"
2007	or return;	2586	or return;
2008		2587
2009	local $/;	2588	local $/;
2010	*CFG = YAML::Syck::Load <$fh>;	2589	*CFG = YAML::Syck::Load <$fh>;
2011		2590
2012	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2591	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2013		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
2014	if (exists $CFG{mlockall}) {	2596	if (exists $CFG{mlockall}) {
2015	eval {	2597	eval {
2016	$CFG{mlockall} ? &mlockall : &munlockall	2598	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2017	and die "WARNING: m(un)lockall failed: $!\n";	2599	and die "WARNING: m(un)lockall failed: $!\n";
2018	};	2600	};
2019	warn $@ if $@;	2601	warn $@ if $@;
2020	}	2602	}
2021	}	2603	}
2022		2604
2023	sub main {	2605	sub main {
2024	# we must not ever block the main coroutine	2606	# we must not ever block the main coroutine
2025	local $Coro::idle = sub {	2607	local $Coro::idle = sub {
2026	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#
2027	(Coro::unblock_sub {	2609	(async {
2028	Event::one_event;	2610	Event::one_event;
2029	})->();	2611	})->prio (Coro::PRIO_MAX);
2030	};	2612	};
2031		2613
2032	cfg_load;	2614	cfg_load;
2033	db_load;	2615	db_init;
2034	load_extensions;	2616	load_extensions;
		2617
		2618	$TICK_WATCHER->start;
2035	Event::loop;	2619	Event::loop;
2036	}	2620	}
2037		2621
2038	#############################################################################	2622	#############################################################################
2039	# initialisation	2623	# initialisation and cleanup
2040		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
2041	sub reload() {	2680	sub do_reload_perl() {
2042	# can/must only be called in main	2681	# can/must only be called in main
2043	if ($Coro::current != $Coro::main) {	2682	if ($Coro::current != $Coro::main) {
2044	warn "can only reload from main coroutine\n";	2683	warn "can only reload from main coroutine";
2045	return;	2684	return;
2046	}	2685	}
2047		2686
2048	warn "reloading...";	2687	warn "reloading...";
2049		2688
2050	my $guard = freeze_mainloop;	2689	warn "entering sync_job";
		2690
		2691	cf::sync_job {
		2692	cf::write_runtime; # external watchdog should not bark
2051	cf::emergency_save;	2693	cf::emergency_save;
		2694	cf::write_runtime; # external watchdog should not bark
2052		2695
2053	eval {	2696	warn "syncing database to disk";
		2697	BDB::db_env_txn_checkpoint $DB_ENV;
		2698
2054	# 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
2055		2700
2056	# cancel all watchers	2701	warn "cancelling all WF_AUTOCANCEL watchers";
2057	for (Event::all_watchers) {	2702	for (Event::all_watchers) {
2058	$_->cancel if $_->data & WF_AUTOCANCEL;	2703	$_->cancel if $_->data & WF_AUTOCANCEL;
2059	}	2704	}
2060		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
2061	# cancel all extension coros	2717	warn "cancelling all extension coros";
2062	$_->cancel for values %EXT_CORO;	2718	$_->cancel for values %EXT_CORO;
2063	%EXT_CORO = ();	2719	%EXT_CORO = ();
2064		2720
2065	# unload all extensions	2721	warn "removing commands";
2066	for (@exts) {	2722	%COMMAND = ();
		2723
		2724	warn "removing ext commands";
		2725	%EXTCMD = ();
		2726
		2727	warn "unloading/nuking all extensions";
		2728	for my $pkg (@EXTS) {
2067	warn "unloading <$_>";	2729	warn "... unloading $pkg";
2068	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: $@";
2069	}	2736	}
2070		2737
		2738	warn "... nuking $pkg";
		2739	Symbol::delete_package $pkg;
		2740	}
		2741
2071	# unload all modules loaded from $LIBDIR	2742	warn "unloading all perl modules loaded from $LIBDIR";
2072	while (my ($k, $v) = each %INC) {	2743	while (my ($k, $v) = each %INC) {
2073	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2074		2745
2075	warn "removing <$k>";	2746	warn "... unloading $k";
2076	delete $INC{$k};	2747	delete $INC{$k};
2077		2748
2078	$k =~ s/\.pm$//;	2749	$k =~ s/\.pm$//;
2079	$k =~ s/\//::/g;	2750	$k =~ s/\//::/g;
2080		2751
…		…
2083	}	2754	}
2084		2755
2085	Symbol::delete_package $k;	2756	Symbol::delete_package $k;
2086	}	2757	}
2087		2758
2088	# sync database to disk
2089	cf::db_sync;
2090	IO::AIO::flush;
2091
2092	# get rid of safe::, as good as possible	2759	warn "getting rid of safe::, as good as possible";
2093	Symbol::delete_package "safe::$_"	2760	Symbol::delete_package "safe::$_"
2094	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);
2095		2762
2096	# remove register_script_function callbacks
2097	# TODO
2098
2099	# unload cf.pm "a bit"	2763	warn "unloading cf.pm \"a bit\"";
2100	delete $INC{"cf.pm"};	2764	delete $INC{"cf.pm"};
		2765	delete $INC{"cf/pod.pm"};
2101		2766
2102	# don't, removes xs symbols, too,	2767	# don't, removes xs symbols, too,
2103	# and global variables created in xs	2768	# and global variables created in xs
2104	#Symbol::delete_package __PACKAGE__;	2769	#Symbol::delete_package __PACKAGE__;
2105		2770
2106	# reload cf.pm	2771	warn "unload completed, starting to reload now";
		2772
2107	warn "reloading cf.pm";	2773	warn "reloading cf.pm";
2108	require cf;	2774	require cf;
2109	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2110		2776
2111	# load config and database again	2777	warn "loading config and database again";
2112	cf::cfg_load;	2778	cf::cfg_load;
2113	cf::db_load;
2114		2779
2115	# load extensions
2116	warn "load extensions";	2780	warn "loading extensions";
2117	cf::load_extensions;	2781	cf::load_extensions;
2118		2782
2119	# reattach attachments to objects	2783	warn "reattaching attachments to objects/players";
2120	warn "reattach";	2784	_global_reattach; # objects, sockets
2121	_global_reattach;	2785	warn "reattaching attachments to maps";
2122	};	2786	reattach $_ for values %MAP;
		2787	warn "reattaching attachments to players";
		2788	reattach $_ for values %PLAYER;
2123		2789
2124	if ($@) {	2790	warn "leaving sync_job";
		2791
		2792	1
		2793	} or do {
2125	warn $@;	2794	warn $@;
2126	warn "error while reloading, exiting.";	2795	warn "error while reloading, exiting.";
2127	exit 1;	2796	exit 1;
2128	}	2797	};
2129		2798
2130	warn "reloaded successfully";	2799	warn "reloaded";
2131	};	2800	};
2132		2801
2133	#############################################################################	2802	our $RELOAD_WATCHER; # used only during reload
2134		2803
2135	unless ($LINK_MAP) {	2804	sub reload_perl() {
2136	$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.
2137		2807
2138	$LINK_MAP->width (41);	2808	$RELOAD_WATCHER ||= Event->timer (
2139	$LINK_MAP->height (41);	2809	reentrant => 0,
2140	$LINK_MAP->alloc;
2141	$LINK_MAP->path ("{link}");
2142	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2143	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2144
2145	# dirty hack because... archetypes are not yet loaded
2146	Event->timer (
2147	after => 2,	2810	after => 0,
		2811	data => WF_AUTOCANCEL,
2148	cb => sub {	2812	cb => sub {
2149	$_[0]->w->cancel;	2813	do_reload_perl;
2150		2814	undef $RELOAD_WATCHER;
2151	# provide some exits "home"
2152	my $exit = cf::object::new "exit";
2153
2154	$exit->slaying ($EMERGENCY_POSITION->[0]);
2155	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2156	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2157
2158	$LINK_MAP->insert ($exit->clone, 19, 19);
2159	$LINK_MAP->insert ($exit->clone, 19, 20);
2160	$LINK_MAP->insert ($exit->clone, 19, 21);
2161	$LINK_MAP->insert ($exit->clone, 20, 19);
2162	$LINK_MAP->insert ($exit->clone, 20, 21);
2163	$LINK_MAP->insert ($exit->clone, 21, 19);
2164	$LINK_MAP->insert ($exit->clone, 21, 20);
2165	$LINK_MAP->insert ($exit->clone, 21, 21);
2166
2167	$exit->destroy;
2168	});	2815	},
2169		2816	);
2170	$LINK_MAP->{deny_save} = 1;
2171	$LINK_MAP->{deny_reset} = 1;
2172
2173	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2174	}	2817	}
2175
2176	register "<global>", __PACKAGE__;
2177		2818
2178	register_command "reload" => sub {	2819	register_command "reload" => sub {
2179	my ($who, $arg) = @_;	2820	my ($who, $arg) = @_;
2180		2821
2181	if ($who->flag (FLAG_WIZ)) {	2822	if ($who->flag (FLAG_WIZ)) {
2182	$who->message ("start of reload.");
2183	reload;
2184	$who->message ("end of reload.");	2823	$who->message ("reloading server.");
		2824	async { reload_perl };
2185	}	2825	}
2186	};	2826	};
2187		2827
2188	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	}
2189		2852
2190	$TICK_WATCHER = Event->timer (	2853	$TICK_WATCHER = Event->timer (
2191	reentrant => 0,	2854	reentrant => 0,
		2855	parked => 1,
2192	prio => 0,	2856	prio => 0,
2193	at => $NEXT_TICK || $TICK,	2857	at => $NEXT_TICK || $TICK,
2194	data => WF_AUTOCANCEL,	2858	data => WF_AUTOCANCEL,
2195	cb => sub {	2859	cb => sub {
		2860	if ($Coro::current != $Coro::main) {
		2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2862	unless ++$bug_warning > 10;
		2863	return;
		2864	}
		2865
		2866	$NOW = $tick_start = Event::time;
		2867
2196	cf::server_tick; # one server iteration	2868	cf::server_tick; # one server iteration
		2869
2197	$RUNTIME += $TICK;	2870	$RUNTIME += $TICK;
2198	$NEXT_TICK += $TICK;	2871	$NEXT_TICK += $TICK;
2199		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
2200	# 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
2201	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2202		2895
2203	$TICK_WATCHER->at ($NEXT_TICK);	2896	$TICK_WATCHER->at ($NEXT_TICK);
2204	$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
2205	},	2905	},
2206	);	2906	);
2207		2907
		2908	{
2208	IO::AIO::max_poll_time $TICK * 0.2;	2909	BDB::max_poll_time $TICK * 0.1;
2209		2910	$BDB_POLL_WATCHER = Event->io (
2210	Event->io (	2911	reentrant => 0,
2211	fd => IO::AIO::poll_fileno,	2912	fd => BDB::poll_fileno,
2212	poll => 'r',	2913	poll => 'r',
2213	prio => 5,	2914	prio => 0,
2214	data => WF_AUTOCANCEL,
2215	cb => \&IO::AIO::poll_cb,
2216	);
2217
2218	Event->timer (
2219	data => WF_AUTOCANCEL,	2915	data => WF_AUTOCANCEL,
2220	after => 0,	2916	cb => \&BDB::poll_cb,
2221	interval => 10,	2917	);
2222	cb => sub {	2918	BDB::min_parallel 8;
2223	(Coro::unblock_sub {	2919
2224	write_runtime	2920	BDB::set_sync_prepare {
2225	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 $@;
2226	})->();	2954	};
2227	},	2955	}
2228	);	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;
2229		3013
2230	END { cf::emergency_save }	3014	END { cf::emergency_save }
2231		3015
2232	1	3016	1
2233		3017

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