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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.121 by root, Tue Jan 2 11:11:52 2007 UTC vs.
Revision 1.265 by root, Fri May 11 08:00:00 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	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
92	every server tick.	129	every server tick.
93		130
94	=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
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	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.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		206
148	$Event::DIED = sub {	207	$Event::DIED = sub {
149	warn "error in event callback: @_";	208	warn "error in event callback: @_";
150	};	209	};
151		210
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
157		212
158	=over 4	213	=over 4
159		214
160	=cut	215	=item dumpval $ref
161		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
162	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
163		239
164	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
165		241
166	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
167		243
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
176		245
177	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
178		247
179	=cut
180
181	sub to_json($) {
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185
186	=item my $guard = cf::guard { BLOCK }
187
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207
208	=item cf::lock_wait $string	248	=item cf::lock_wait $string
209		249
210	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
211		251
212	=item my $lock = cf::lock_acquire $string	252	=item my $lock = cf::lock_acquire $string
213		253
214	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
215	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,
216	for example when the coroutine gets canceled), the lock is automatically	256	for example when the coroutine gets canceled), the lock is automatically
217	returned.	257	returned.
218		258
219	Lock names should begin with a unique identifier (for example, find_map	259	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	260	uses map_find and cf::map::load uses map_load).
		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
221		265
222	=cut	266	=cut
223		267
224	our %LOCK;	268	our %LOCK;
225		269
…		…
239	# wait, to be sure we are not locked	283	# wait, to be sure we are not locked
240	lock_wait $key;	284	lock_wait $key;
241		285
242	$LOCK{$key} = [];	286	$LOCK{$key} = [];
243		287
244	cf::guard {	288	Coro::guard {
245	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
247	}	291	}
248	}	292	}
		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
		300	sub freeze_mainloop {
		301	return unless $TICK_WATCHER->is_active;
		302
		303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
		306	$TICK_WATCHER->stop;
		307	$guard
		308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
249		319
250	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
251		321
252	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
253	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
262		332
263	sub sync_job(&) {	333	sub sync_job(&) {
264	my ($job) = @_;	334	my ($job) = @_;
265		335
266	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
267	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
269		341
270	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	343	# (but this is cancel-safe)
272	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
273		345
274	my $busy = 1;	346	my $busy = 1;
275	my @res;	347	my @res;
276		348
277	(Coro::async {	349	(async {
278	@res = eval { $job->() };	350	@res = eval { $job->() };
279	warn $@ if $@;	351	warn $@ if $@;
280	undef $busy;	352	undef $busy;
281	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
282		354
283	while ($busy) {	355	while ($busy) {
284	Coro::cede_notself;	356	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	357	}
		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, "long sync job\n"
		362	if $time > $TICK * 0.5;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
287		365
288	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
289	} else {	367	} else {
290	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
291		369
292	$job->()	370	$job->()
293	}	371	}
294	}	372	}
295		373
296	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
297		375
298	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
300		378
301	=cut	379	=cut
302		380
303	sub coro(&) {	381	sub async_ext(&) {
304	my $cb = shift;	382	my $cb = shift;
305		383
306	my $coro; $coro = async {	384	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		385
313	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
315	});	388	});
316	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
317		390
318	$coro	391	$coro
319	}	392	}
320		393
321	sub write_runtime {	394	sub write_runtime {
322	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";
323		405
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
325	or return;	407	or return;
326		408
		409	my $value = $cf::RUNTIME + 90 + 10;
327	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
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;	414	and return;
330		415
		416	# always fsync - this file is important
331	aio_fsync $fh	417	aio_fsync $fh
332	and return;	418	and return;
333		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
334	close $fh	423	close $fh
335	or return;	424	or return;
336		425
337	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
338	and return;	427	and return;
339		428
		429	warn "runtime file written.\n";#d#
		430
340	1	431	1
341	}	432	}
342		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
343	=back	445	=back
344		446
345	=cut	447	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		448
467	#############################################################################	449	#############################################################################
468		450
469	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
470		452
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	579	our @CB_MAP = ();
598		580
599	my %attachment;	581	my %attachment;
600		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
601	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
603		591
604	use sort 'stable';	592	use sort 'stable';
605		593
…		…
776	# object support	764	# object support
777		765
778	sub reattach {	766	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		771
782	my $registry = $obj->registry;	772	my $registry = $obj->registry;
783		773
784	@$registry = ();	774	@$registry = ();
785		775
…		…
832	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
833		823
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	828	close $fh;
839		829
840	if (@$objs) {	830	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	836	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
848	}	838	}
849	} else {	839	} else {
850	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
917	=cut	907	=cut
918		908
919	sub register_extcmd {	909	sub register_extcmd {
920	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
921		911
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
926	}	913	}
927		914
928	cf::player->attach (	915	cf::player->attach (
929	on_command => sub {	916	on_command => sub {
930	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
943		930
944	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
945		932
946	if (ref $msg) {	933	if (ref $msg) {
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
949	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
950	}	937	}
951	}	938	}
952	} else {	939	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
955		942
956	cf::override;	943	cf::override;
957	},	944	},
958	);	945	);
959		946
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	947	sub load_extension {
967	my ($path) = @_;	948	my ($path) = @_;
968		949
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
970	my $base = $1;	951	my $base = $1;
971	my $pkg = $1;	952	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
974		955
975	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
976		957
977	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
978	or die "$path: $!";	959	or die "$path: $!";
979		960
980	my $source =	961	my $source =
981	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
984	. "\n};\n1";	965	. "\n};\n1";
985		966
986	eval $source	967	unless (eval $source) {
987	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
988	: "extension disabled.\n";	969	: "extension disabled.\n";
989		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
990	push @exts, $pkg;	971	warn $@;
991	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
992		973	exit 1;
993	# no strict 'refs';	974	}
994	# @{"$pkg\::ISA"} = ext::;	975	die $@;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	976	}
1009		977
1010	# remove commands	978	push @EXTS, $pkg;
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}	979	}
1035		980
1036	sub load_extensions {	981	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;	983	next unless -r $ext;
…		…
1042	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1043	}	988	}
1044	}	989	}
1045		990
1046	#############################################################################	991	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083		992
1084	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1085		994
1086	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1087		996
		997	=cut
		998
		999	package cf::player;
		1000
		1001	use Coro::AIO;
		1002
1088	=head3 cf::player	1003	=head3 cf::player
1089		1004
1090	=over 4	1005	=over 4
1091		1006
1092	=item cf::player::exists $login	1007	=item cf::player::find $login
1093		1008
1094	Returns true when the given account exists.	1009	Returns the given player object, loading it if necessary (might block).
1095		1010
1096	=cut	1011	=cut
1097		1012
1098	sub cf::player::exists($) {	1013	sub playerdir($) {
1099	cf::player::find $_[0]	1014	"$PLAYERDIR/"
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1101	}	1016	}
1102		1017
		1018	sub path($) {
		1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1020
		1021	(playerdir $login) . "/playerdata"
		1022	}
		1023
		1024	sub find_active($) {
		1025	$cf::PLAYER{$_[0]}
		1026	and $cf::PLAYER{$_[0]}->active
		1027	and $cf::PLAYER{$_[0]}
		1028	}
		1029
		1030	sub exists($) {
		1031	my ($login) = @_;
		1032
		1033	$cf::PLAYER{$login}
		1034	or cf::sync_job { !aio_stat path $login }
		1035	}
		1036
		1037	sub find($) {
		1038	return $cf::PLAYER{$_[0]} || do {
		1039	my $login = $_[0];
		1040
		1041	my $guard = cf::lock_acquire "user_find:$login";
		1042
		1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
		1051	my $pl = load_pl path $login
		1052	or return;
		1053	$cf::PLAYER{$login} = $pl
		1054	}
		1055	}
		1056	}
		1057
		1058	sub save($) {
		1059	my ($pl) = @_;
		1060
		1061	return if $pl->{deny_save};
		1062
		1063	my $path = path $pl;
		1064	my $guard = cf::lock_acquire "user_save:$path";
		1065
		1066	return if $pl->{deny_save};
		1067
		1068	aio_mkdir playerdir $pl, 0770;
		1069	$pl->{last_save} = $cf::RUNTIME;
		1070
		1071	$pl->save_pl ($path);
		1072	Coro::cede;
		1073	}
		1074
		1075	sub new($) {
		1076	my ($login) = @_;
		1077
		1078	my $self = create;
		1079
		1080	$self->ob->name ($login);
		1081	$self->{deny_save} = 1;
		1082
		1083	$cf::PLAYER{$login} = $self;
		1084
		1085	$self
		1086	}
		1087
		1088	=item $pl->quit_character
		1089
		1090	Nukes the player without looking back. If logged in, the connection will
		1091	be destroyed. May block for a long time.
		1092
		1093	=cut
		1094
		1095	sub quit_character {
		1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
		1099
		1100	$pl->{deny_save} = 1;
		1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1102
		1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1104	$pl->deactivate;
		1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1106	$pl->ns->destroy if $pl->ns;
		1107
		1108	my $path = playerdir $pl;
		1109	my $temp = "$path~$cf::RUNTIME~deleting~";
		1110	aio_rename $path, $temp;
		1111	delete $cf::PLAYER{$pl->ob->name};
		1112	$pl->destroy;
		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
		1119	IO::AIO::aio_rmtree $temp;
		1120	}
		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
		1134	}
		1135
		1136	=item cf::player::list_logins
		1137
		1138	Returns am arrayref of all valid playernames in the system, can take a
		1139	while and may block, so not sync_job-capable, ever.
		1140
		1141	=cut
		1142
		1143	sub list_logins {
		1144	my $dirs = aio_readdir $PLAYERDIR
		1145	or return [];
		1146
		1147	my @logins;
		1148
		1149	for my $login (@$dirs) {
		1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1151	aio_read $fh, 0, 512, my $buf, 0 or next;
		1152	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1153
		1154	utf8::decode $login;
		1155	push @logins, $login;
		1156	}
		1157
		1158	\@logins
		1159	}
		1160
		1161	=item $player->maps
		1162
		1163	Returns an arrayref of map paths that are private for this
		1164	player. May block.
		1165
		1166	=cut
		1167
		1168	sub maps($) {
		1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
		1172
		1173	my $files = aio_readdir playerdir $pl
		1174	or return;
		1175
		1176	my @paths;
		1177
		1178	for (@$files) {
		1179	utf8::decode $_;
		1180	next if /\.(?:pl|pst)$/;
		1181	next unless /^$PATH_SEP/o;
		1182
		1183	push @paths, cf::map::normalise "~$pl/$_";
		1184	}
		1185
		1186	\@paths
		1187	}
		1188
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1104		1190
1105	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1106		1192
1107	=cut	1193	=cut
1108		1194
1109	sub cf::player::ext_reply($$$%) {	1195	sub ext_reply($$%) {
1110	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1111		1197
1112	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1113		1199
1114	$self->send ("ext " . to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
		1201	}
		1202
		1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
1115	}	1242	}
1116		1243
1117	=back	1244	=back
1118
1119		1245
1120	=head3 cf::map	1246	=head3 cf::map
1121		1247
1122	=over 4	1248	=over 4
1123		1249
…		…
1126	package cf::map;	1252	package cf::map;
1127		1253
1128	use Fcntl;	1254	use Fcntl;
1129	use Coro::AIO;	1255	use Coro::AIO;
1130		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1131	our $MAX_RESET = 7200;	1261	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1262	our $DEFAULT_RESET = 3000;
1133		1263
1134	sub generate_random_map {	1264	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1267	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1276	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1278	(cf::region::find $rmp->{region}), $rmp->{custom}
		1279	)
		1280	}
		1281
		1282	=item cf::map->register ($regex, $prio)
		1283
		1284	Register a handler for the map path matching the given regex at the
		1285	givne priority (higher is better, built-in handlers have priority 0, the
		1286	default).
		1287
		1288	=cut
		1289
		1290	sub register {
		1291	my (undef, $regex, $prio) = @_;
		1292	my $pkg = caller;
		1293
		1294	no strict;
		1295	push @{"$pkg\::ISA"}, __PACKAGE__;
		1296
		1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1298	}
		1299
		1300	# also paths starting with '/'
		1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1302
		1303	sub thawer_merge {
		1304	my ($self, $merge) = @_;
		1305
		1306	# we have to keep some variables in memory intact
		1307	local $self->{path};
		1308	local $self->{load_path};
		1309	local $self->{deny_save};
		1310	local $self->{deny_reset};
		1311
		1312	$self->SUPER::thawer_merge ($merge);
		1313	}
		1314
		1315	sub normalise {
		1316	my ($path, $base) = @_;
		1317
		1318	$path = "$path"; # make sure its a string
		1319
		1320	$path =~ s/\.map$//;
		1321
		1322	# map plan:
		1323	#
		1324	# /! non-realised random map exit (special hack!)
		1325	# {... are special paths that are not being touched
		1326	# ?xxx/... are special absolute paths
		1327	# ?random/... random maps
		1328	# /... normal maps
		1329	# ~user/... per-player map of a specific user
		1330
		1331	$path =~ s/$PATH_SEP/\//go;
		1332
		1333	# treat it as relative path if it starts with
		1334	# something that looks reasonable
		1335	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1336	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1337
		1338	$base =~ s{[^/]+/?$}{};
		1339	$path = "$base/$path";
		1340	}
		1341
		1342	for ($path) {
		1343	redo if s{//}{/};
		1344	redo if s{/\.?/}{/};
		1345	redo if s{/[^/]+/\.\./}{/};
		1346	}
		1347
		1348	$path
		1349	}
		1350
		1351	sub new_from_path {
		1352	my (undef, $path, $base) = @_;
		1353
		1354	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1355
		1356	$path = normalise $path, $base;
		1357
		1358	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1359	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1360	my $self = bless cf::map::new, $pkg;
		1361	$self->{path} = $path; $self->path ($path);
		1362	$self->init; # pass $1 etc.
		1363	return $self;
		1364	}
		1365	}
		1366
		1367	Carp::carp "unable to resolve path '$path' (base '$base').";
		1368	()
		1369	}
		1370
		1371	sub init {
		1372	my ($self) = @_;
		1373
		1374	$self
		1375	}
		1376
		1377	sub as_string {
		1378	my ($self) = @_;
		1379
		1380	"$self->{path}"
		1381	}
		1382
		1383	# the displayed name, this is a one way mapping
		1384	sub visible_name {
		1385	&as_string
		1386	}
		1387
		1388	# the original (read-only) location
		1389	sub load_path {
		1390	my ($self) = @_;
		1391
		1392	"$MAPDIR/$self->{path}.map"
		1393	}
		1394
		1395	# the temporary/swap location
		1396	sub save_path {
		1397	my ($self) = @_;
		1398
		1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1400	"$TMPDIR/$path.map"
		1401	}
		1402
		1403	# the unique path, undef == no special unique path
		1404	sub uniq_path {
		1405	my ($self) = @_;
		1406
		1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1408	"$UNIQUEDIR/$path"
1151	}	1409	}
1152		1410
1153	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1154	# all maps in C++...	1412	# all maps in C++...
1155	sub change_all_map_light {	1413	sub change_all_map_light {
1156	my ($change) = @_;	1414	my ($change) = @_;
1157		1415
1158	$_->change_map_light ($change) for values %cf::MAP;	1416	$_->change_map_light ($change)
		1417	for grep $_->outdoor, values %cf::MAP;
1159	}	1418	}
1160		1419
		1420	sub unlink_save {
		1421	my ($self) = @_;
		1422
		1423	utf8::encode (my $save = $self->save_path);
		1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1426	}
		1427
1161	sub try_load_header($) {	1428	sub load_header_from($) {
1162	my ($path) = @_;	1429	my ($self, $path) = @_;
1163		1430
1164	utf8::encode $path;	1431	utf8::encode $path;
1165	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1166	or return;	1436	or return;
1167		1437
1168	my $map = cf::map::new	1438	$self->{load_path} = $path;
		1439
		1440	1
		1441	}
		1442
		1443	sub load_header_orig {
		1444	my ($self) = @_;
		1445
		1446	$self->load_header_from ($self->load_path)
		1447	}
		1448
		1449	sub load_header_temp {
		1450	my ($self) = @_;
		1451
		1452	$self->load_header_from ($self->save_path)
		1453	}
		1454
		1455	sub prepare_temp {
		1456	my ($self) = @_;
		1457
		1458	$self->last_access ((delete $self->{last_access})
		1459	|| $cf::RUNTIME); #d#
		1460	# safety
		1461	$self->{instantiate_time} = $cf::RUNTIME
		1462	if $self->{instantiate_time} > $cf::RUNTIME;
		1463	}
		1464
		1465	sub prepare_orig {
		1466	my ($self) = @_;
		1467
		1468	$self->{load_original} = 1;
		1469	$self->{instantiate_time} = $cf::RUNTIME;
		1470	$self->last_access ($cf::RUNTIME);
		1471	$self->instantiate;
		1472	}
		1473
		1474	sub load_header {
		1475	my ($self) = @_;
		1476
		1477	if ($self->load_header_temp) {
		1478	$self->prepare_temp;
		1479	} else {
		1480	$self->load_header_orig
1169	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1170		1484
1171	$map->load_header ($path)	1485	$self->default_region (cf::region::find_by_path $self->{path})
1172	or return;	1486	unless $self->default_region;
1173		1487
1174	$map->{load_path} = $path;	1488	1
1175
1176	$map
1177	}	1489	}
1178		1490
		1491	sub find;
1179	sub find_map {	1492	sub find {
1180	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1181		1494
1182	#warn "find_map<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1496
1187	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1188		1498
1189	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1191		1501	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	if ($map) {
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1502	or return;
1207		1503
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->instantiate;
1211
1212	# per-player maps become, after loading, normal maps
1213	$map->per_player (0) if $path->{user_rel};
1214	}
1215
1216	$map->path ($key);
1217	$map->{path} = $path;
1218	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1219	$map->last_access ($cf::RUNTIME);
1220		1505
1221	if ($map->should_reset) {	1506	$map->load_header
		1507	or return;
		1508
		1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1510	# doing this can freeze the server in a sync job, obviously
		1511	#$cf::WAIT_FOR_TICK->wait;
1222	$map->reset;	1512	$map->reset;
1223	$map = find_map $path;	1513	undef $guard;
		1514	return find $path;
1224	}	1515	}
1225		1516
1226	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1227	}	1518	}
1228	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1229		1523
1230	sub load {	1524	sub load {
1231	my ($self) = @_;	1525	my ($self) = @_;
1232		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1233	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1234	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1235		1533
1236	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1237		1535
1238	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1239		1537
1240	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1241	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1242	or return;	1544	or return;
1243		1545
1244	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1245	if delete $self->{load_original};	1547	if delete $self->{load_original};
1246		1548
1247	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1248	utf8::encode $uniq;	1550	utf8::encode $uniq;
1249	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1250	$self->clear_unique_items;	1552	$self->clear_unique_items;
1251	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1252	}	1554	}
1253	}	1555	}
1254		1556
		1557	Coro::cede;
1255	# now do the right thing for maps	1558	# now do the right thing for maps
1256	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1257
1258	if ($self->{path}->is_style_map) {
1259	$self->{deny_save} = 1;
1260	$self->{deny_reset} = 1;
1261	} else {
1262	$self->fix_auto_apply;
1263	$self->decay_objects;
1264	$self->update_buttons;
1265	$self->set_darkness_map;
1266	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1267	unless $self->difficulty;	1561	unless $self->difficulty;
		1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1268	$self->activate;	1571	$self->activate;
1269	}	1572	}
1270		1573
1271	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
1272	}	1575	}
1273		1576
1274	sub load_map_sync {	1577	$self->post_load;
		1578	}
		1579
		1580	sub customise_for {
		1581	my ($self, $ob) = @_;
		1582
		1583	return find "~" . $ob->name . "/" . $self->{path}
		1584	if $self->per_player;
		1585
		1586	$self
		1587	}
		1588
		1589	# find and load all maps in the 3x3 area around a map
		1590	sub load_diag {
		1591	my ($map) = @_;
		1592
		1593	my @diag; # diagonal neighbours
		1594
		1595	for (0 .. 3) {
		1596	my $neigh = $map->tile_path ($_)
		1597	or next;
		1598	$neigh = find $neigh, $map
		1599	or next;
		1600	$neigh->load;
		1601
		1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1604	}
		1605
		1606	for (@diag) {
		1607	my $neigh = find @$_
		1608	or next;
		1609	$neigh->load;
		1610	}
		1611	}
		1612
		1613	sub find_sync {
1275	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1276		1615
1277	#warn "load_map_sync<$path, $origin>\n";#d#	1616	cf::sync_job { find $path, $origin }
		1617	}
1278		1618
1279	cf::sync_job {	1619	sub do_load_sync {
1280	my $map = cf::map::find_map $path, $origin	1620	my ($map) = @_;
1281	or return;	1621
		1622	cf::sync_job { $map->load };
		1623	}
		1624
		1625	our %MAP_PREFETCH;
		1626	our $MAP_PREFETCHER = undef;
		1627
		1628	sub find_async {
		1629	my ($path, $origin) = @_;
		1630
		1631	$path = normalise $path, $origin && $origin->{path};
		1632
		1633	if (my $map = $cf::MAP{$path}) {
		1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1635	}
		1636
		1637	undef $MAP_PREFETCH{$path};
		1638	$MAP_PREFETCHER ||= cf::async {
		1639	while (%MAP_PREFETCH) {
		1640	for my $path (keys %MAP_PREFETCH) {
		1641	my $map = find $path
		1642	or next;
1282	$map->load;	1643	$map->load;
1283	$map	1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
1284	}	1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
1285	}	1653	}
1286		1654
1287	sub save {	1655	sub save {
1288	my ($self) = @_;	1656	my ($self) = @_;
1289		1657
		1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1659
1290	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1291		1661
1292	return unless $self->dirty;	1662	return unless $self->dirty;
1293		1663
1294	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1295	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1296		1666
1297	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1298		1668
1299	return if $self->{deny_save};	1669	return if $self->{deny_save};
1300		1670
		1671	local $self->{last_access} = $self->last_access;#d#
		1672
		1673	cf::async {
		1674	$_->contr->save for $self->players;
		1675	};
		1676
1301	if ($uniq) {	1677	if ($uniq) {
1302	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1303	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1304	} else {	1680	} else {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1306	}	1682	}
1307	}	1683	}
1308		1684
1309	sub swap_out {	1685	sub swap_out {
1310	my ($self) = @_;	1686	my ($self) = @_;
		1687
		1688	# save first because save cedes
		1689	$self->save;
		1690
		1691	my $lock = cf::lock_acquire "map_data:" . $self->path;
1311		1692
1312	return if $self->players;	1693	return if $self->players;
1313	return if $self->in_memory != cf::MAP_IN_MEMORY;	1694	return if $self->in_memory != cf::MAP_IN_MEMORY;
1314	return if $self->{deny_save};	1695	return if $self->{deny_save};
1315		1696
1316	$self->save;
1317	$self->clear;	1697	$self->clear;
1318	$self->in_memory (cf::MAP_SWAPPED);	1698	$self->in_memory (cf::MAP_SWAPPED);
1319	}	1699	}
1320		1700
1321	sub reset_at {	1701	sub reset_at {
1322	my ($self) = @_;	1702	my ($self) = @_;
1323		1703
1324	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1325	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1326	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1327		1707
1328	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1329	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1330		1710
…		…
1335	my ($self) = @_;	1715	my ($self) = @_;
1336		1716
1337	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1338	}	1718	}
1339		1719
1340	sub unlink_save {
1341	my ($self) = @_;
1342
1343	utf8::encode (my $save = $self->{path}->save_path);
1344	aioreq_pri 3; IO::AIO::aio_unlink $save;
1345	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1346	}
1347
1348	sub rename {
1349	my ($self, $new_path) = @_;
1350
1351	$self->unlink_save;
1352
1353	delete $cf::MAP{$self->path};
1354	$self->{path} = new cf::path $new_path;
1355	$self->path ($self->{path}->as_string);
1356	$cf::MAP{$self->path} = $self;
1357
1358	$self->save;
1359	}
1360
1361	sub reset {	1720	sub reset {
1362	my ($self) = @_;	1721	my ($self) = @_;
1363		1722
		1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1724
1364	return if $self->players;	1725	return if $self->players;
1365	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1366		1727
1367	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1368		1729
		1730	$self->in_memory (cf::MAP_SWAPPED);
		1731
		1732	# need to save uniques path
		1733	unless ($self->{deny_save}) {
		1734	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1735
		1736	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1737	if $uniq;
		1738	}
		1739
1369	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1370		1743
1371	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1372		1745
1373	$self->unlink_save;	1746	$self->unlink_save;
1374	$self->destroy;	1747	$self->destroy;
…		…
1377	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1378		1751
1379	sub nuke {	1752	sub nuke {
1380	my ($self) = @_;	1753	my ($self) = @_;
1381		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1382	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1383	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1384	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1385	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1386	}	1768	}
1387		1769
1388	sub customise_for {	1770	=item cf::map::unique_maps
1389	my ($map, $ob) = @_;
1390		1771
1391	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1392	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1393	}
1394		1774
1395	$map	1775	=cut
1396	}
1397		1776
1398	sub emergency_save {	1777	sub unique_maps() {
1399	local $cf::FREEZE = 1;	1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
1400		1780
1401	warn "enter emergency map save\n";	1781	my @paths;
1402		1782
1403	cf::sync_job {	1783	for (@$files) {
1404	warn "begin emergency map save\n";	1784	utf8::decode $_;
1405	$_->save for values %cf::MAP;	1785	next if /\.pst$/;
		1786	next unless /^$PATH_SEP/o;
		1787
		1788	push @paths, cf::map::normalise $_;
1406	};	1789	}
1407		1790
1408	warn "end emergency map save\n";	1791	\@paths
1409	}	1792	}
1410		1793
1411	package cf;	1794	package cf;
1412		1795
1413	=back	1796	=back
1414		1797
		1798	=head3 cf::object
		1799
		1800	=cut
		1801
		1802	package cf::object;
		1803
		1804	=over 4
		1805
		1806	=item $ob->inv_recursive
		1807
		1808	Returns the inventory of the object _and_ their inventories, recursively.
		1809
		1810	=cut
		1811
		1812	sub inv_recursive_;
		1813	sub inv_recursive_ {
		1814	map { $_, inv_recursive_ $_->inv } @_
		1815	}
		1816
		1817	sub inv_recursive {
		1818	inv_recursive_ inv $_[0]
		1819	}
		1820
		1821	package cf;
		1822
		1823	=back
1415		1824
1416	=head3 cf::object::player	1825	=head3 cf::object::player
1417		1826
1418	=over 4	1827	=over 4
1419		1828
…		…
1459		1868
1460	=item $player_object->enter_link	1869	=item $player_object->enter_link
1461		1870
1462	Freezes the player and moves him/her to a special map (C<{link}>).	1871	Freezes the player and moves him/her to a special map (C<{link}>).
1463		1872
1464	The player should be reaosnably safe there for short amounts of time. You	1873	The player should be reasonably safe there for short amounts of time. You
1465	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1466		1875
		1876	Will never block.
		1877
1467	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1468		1879
1469	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1470	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1471	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1472	to the emergency map position.	1883	fails, to the emergency map position.
1473		1884
1474	Might block.	1885	Might block.
1475		1886
1476	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($LINK_MAP) {
		1891	$LINK_MAP = cf::map::find "{link}"
		1892	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1893	$LINK_MAP->load;
		1894	}
		1895
		1896	$LINK_MAP
		1897	}
1477		1898
1478	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1479	my ($self) = @_;	1900	my ($self) = @_;
1480		1901
1481	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1482		1903
1483	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1484		1905
1485	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1486	if $self->map;	1907	if $self->map;
1487		1908
1488	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1489	}	1910	}
1490		1911
1491	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1492	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1493		1914
1494	my $link_pos = delete $self->{_link_pos};	1915	my $link_pos = delete $self->{_link_pos};
1495		1916
1496	unless ($map) {	1917	unless ($map) {
1497	# restore original map position	1918	# restore original map position
1498	($map, $x, $y) = @{ $link_pos || [] };	1919	($map, $x, $y) = @{ $link_pos || [] };
1499	$map = cf::map::find_map $map;	1920	$map = cf::map::find $map;
1500		1921
1501	unless ($map) {	1922	unless ($map) {
1502	($map, $x, $y) = @$EMERGENCY_POSITION;	1923	($map, $x, $y) = @$EMERGENCY_POSITION;
1503	$map = cf::map::find_map $map	1924	$map = cf::map::find $map
1504	or die "FATAL: cannot load emergency map\n";	1925	or die "FATAL: cannot load emergency map\n";
1505	}	1926	}
1506	}	1927	}
1507		1928
1508	($x, $y) = (-1, -1)	1929	($x, $y) = (-1, -1)
…		…
1511	# use -1 or undef as default coordinates, not 0, 0	1932	# use -1 or undef as default coordinates, not 0, 0
1512	($x, $y) = ($map->enter_x, $map->enter_y)	1933	($x, $y) = ($map->enter_x, $map->enter_y)
1513	if $x <=0 && $y <= 0;	1934	if $x <=0 && $y <= 0;
1514		1935
1515	$map->load;	1936	$map->load;
		1937	$map->load_diag;
1516		1938
		1939	return unless $self->contr->active;
1517	$self->activate_recursive;	1940	$self->activate_recursive;
		1941
		1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1518	$self->enter_map ($map, $x, $y);	1943	$self->enter_map ($map, $x, $y);
1519	}	1944	}
1520		1945
1521	cf::player->attach (	1946	cf::player->attach (
1522	on_logout => sub {	1947	on_logout => sub {
…		…
1534		1959
1535	# try to abort aborted map switching on player login :)	1960	# try to abort aborted map switching on player login :)
1536	# should happen only on crashes	1961	# should happen only on crashes
1537	if ($pl->ob->{_link_pos}) {	1962	if ($pl->ob->{_link_pos}) {
1538	$pl->ob->enter_link;	1963	$pl->ob->enter_link;
1539	Coro::async {	1964	(async {
		1965	$pl->ob->reply (undef,
		1966	"There was an internal problem at your last logout, "
		1967	. "the server will try to bring you to your intended destination in a second.",
		1968	cf::NDI_RED);
1540	# we need this sleep as the login has a concurrent enter_exit running	1969	# we need this sleep as the login has a concurrent enter_exit running
1541	# and this sleep increases chances of the player not ending up in scorn	1970	# and this sleep increases chances of the player not ending up in scorn
1542	Coro::Timer::sleep 1;	1971	Coro::Timer::sleep 1;
1543	$pl->ob->leave_link;	1972	$pl->ob->leave_link;
1544	};	1973	})->prio (2);
1545	}	1974	}
1546	},	1975	},
1547	);	1976	);
1548		1977
1549	=item $player_object->goto_map ($path, $x, $y)	1978	=item $player_object->goto ($path, $x, $y)
1550		1979
1551	=cut	1980	=cut
1552		1981
1553	sub cf::object::player::goto_map {	1982	sub cf::object::player::goto {
1554	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y) = @_;
1555		1984
1556	$self->enter_link;	1985	$self->enter_link;
1557		1986
1558	(Coro::async {	1987	(async {
1559	$path = new cf::path $path;	1988	my $map = eval {
1560
1561	my $map = cf::map::find_map $path->as_string;	1989	my $map = cf::map::find $path;
1562	$map = $map->customise_for ($self) if $map;	1990	$map = $map->customise_for ($self) if $map;
1563		1991	$map
1564	# warn "entering ", $map->path, " at ($x, $y)\n"	1992	} or
1565	# if $map;
1566
1567	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1568		1994
1569	$self->leave_link ($map, $x, $y);	1995	$self->leave_link ($map, $x, $y);
1570	})->prio (1);	1996	})->prio (1);
1571	}	1997	}
1572		1998
…		…
1576		2002
1577	sub parse_random_map_params {	2003	sub parse_random_map_params {
1578	my ($spec) = @_;	2004	my ($spec) = @_;
1579		2005
1580	my $rmp = { # defaults	2006	my $rmp = { # defaults
1581	xsize => 10,	2007	xsize => (cf::rndm 15, 40),
1582	ysize => 10,	2008	ysize => (cf::rndm 15, 40),
		2009	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2010	#layout => string,
1583	};	2011	};
1584		2012
1585	for (split /\n/, $spec) {	2013	for (split /\n/, $spec) {
1586	my ($k, $v) = split /\s+/, $_, 2;	2014	my ($k, $v) = split /\s+/, $_, 2;
1587		2015
…		…
1591	$rmp	2019	$rmp
1592	}	2020	}
1593		2021
1594	sub prepare_random_map {	2022	sub prepare_random_map {
1595	my ($exit) = @_;	2023	my ($exit) = @_;
		2024
		2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
1596		2026
1597	# all this does is basically replace the /! path by	2027	# all this does is basically replace the /! path by
1598	# a new random map path (?random/...) with a seed	2028	# a new random map path (?random/...) with a seed
1599	# that depends on the exit object	2029	# that depends on the exit object
1600		2030
1601	my $rmp = parse_random_map_params $exit->msg;	2031	my $rmp = parse_random_map_params $exit->msg;
1602		2032
1603	if ($exit->map) {	2033	if ($exit->map) {
1604	$rmp->{region} = $exit->map->region_name;	2034	$rmp->{region} = $exit->region->name;
1605	$rmp->{origin_map} = $exit->map->path;	2035	$rmp->{origin_map} = $exit->map->path;
1606	$rmp->{origin_x} = $exit->x;	2036	$rmp->{origin_x} = $exit->x;
1607	$rmp->{origin_y} = $exit->y;	2037	$rmp->{origin_y} = $exit->y;
1608	}	2038	}
1609		2039
1610	$rmp->{random_seed} ||= $exit->random_seed;	2040	$rmp->{random_seed} ||= $exit->random_seed;
1611		2041
1612	my $data = cf::to_json $rmp;	2042	my $data = cf::to_json $rmp;
1613	my $md5 = Digest::MD5::md5_hex $data;	2043	my $md5 = Digest::MD5::md5_hex $data;
		2044	my $meta = "$RANDOMDIR/$md5.meta";
1614		2045
1615	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2046	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1616	aio_write $fh, 0, (length $data), $data, 0;	2047	aio_write $fh, 0, (length $data), $data, 0;
		2048	undef $fh;
		2049	aio_rename "$meta~", $meta;
1617		2050
1618	$exit->slaying ("?random/$md5");	2051	$exit->slaying ("?random/$md5");
1619	$exit->msg (undef);	2052	$exit->msg (undef);
1620	}	2053	}
1621	}	2054	}
…		…
1623	sub cf::object::player::enter_exit {	2056	sub cf::object::player::enter_exit {
1624	my ($self, $exit) = @_;	2057	my ($self, $exit) = @_;
1625		2058
1626	return unless $self->type == cf::PLAYER;	2059	return unless $self->type == cf::PLAYER;
1627		2060
		2061	if ($exit->slaying eq "/!") {
		2062	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2063	# the problem is that $exit might not survive long enough
		2064	# so it needs to be done right now, right here
		2065	cf::sync_job { prepare_random_map $exit };
		2066	}
		2067
		2068	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2069	my $hp = $exit->stats->hp;
		2070	my $sp = $exit->stats->sp;
		2071
1628	$self->enter_link;	2072	$self->enter_link;
1629		2073
1630	(Coro::async {	2074	(async {
		2075	$self->deactivate_recursive; # just to be sure
1631	unless (eval {	2076	unless (eval {
1632		2077	$self->goto ($slaying, $hp, $sp);
1633	prepare_random_map $exit
1634	if $exit->slaying eq "/!";
1635
1636	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1637	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1638		2078
1639	1;	2079	1;
1640	}) {	2080	}) {
1641	$self->message ("Something went wrong deep within the crossfire server. "	2081	$self->message ("Something went wrong deep within the crossfire server. "
1642	. "I'll try to bring you back to the map you were before. "	2082	. "I'll try to bring you back to the map you were before. "
1643	. "Please report this to the dungeon master",	2083	. "Please report this to the dungeon master!",
1644	cf::NDI_UNIQUE | cf::NDI_RED);	2084	cf::NDI_UNIQUE | cf::NDI_RED);
1645		2085
1646	warn "ERROR in enter_exit: $@";	2086	warn "ERROR in enter_exit: $@";
1647	$self->leave_link;	2087	$self->leave_link;
1648	}	2088	}
1649	})->prio (1);	2089	})->prio (1);
…		…
1662		2102
1663	sub cf::client::send_drawinfo {	2103	sub cf::client::send_drawinfo {
1664	my ($self, $text, $flags) = @_;	2104	my ($self, $text, $flags) = @_;
1665		2105
1666	utf8::encode $text;	2106	utf8::encode $text;
1667	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1668	}	2108	}
1669		2109
		2110	=item $client->ext_event ($type, %msg)
		2111
		2112	Sends an exti event to the client.
		2113
		2114	=cut
		2115
		2116	sub cf::client::ext_event($$%) {
		2117	my ($self, $type, %msg) = @_;
		2118
		2119	$msg{msgtype} = "event_$type";
		2120	$self->send_packet ("ext " . cf::to_json \%msg);
		2121	}
1670		2122
1671	=item $success = $client->query ($flags, "text", \&cb)	2123	=item $success = $client->query ($flags, "text", \&cb)
1672		2124
1673	Queues a query to the client, calling the given callback with	2125	Queues a query to the client, calling the given callback with
1674	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1699	on_reply => sub {	2151	on_reply => sub {
1700	my ($ns, $msg) = @_;	2152	my ($ns, $msg) = @_;
1701		2153
1702	# this weird shuffling is so that direct followup queries	2154	# this weird shuffling is so that direct followup queries
1703	# get handled first	2155	# get handled first
1704	my $queue = delete $ns->{query_queue};	2156	my $queue = delete $ns->{query_queue}
		2157	or return; # be conservative, not sure how that can happen, but we saw a crash here
1705		2158
1706	(shift @$queue)->[1]->($msg);	2159	(shift @$queue)->[1]->($msg);
		2160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1707		2161
1708	push @{ $ns->{query_queue} }, @$queue;	2162	push @{ $ns->{query_queue} }, @$queue;
1709		2163
1710	if (@{ $ns->{query_queue} } == @$queue) {	2164	if (@{ $ns->{query_queue} } == @$queue) {
1711	if (@$queue) {	2165	if (@$queue) {
…		…
1715	}	2169	}
1716	}	2170	}
1717	},	2171	},
1718	);	2172	);
1719		2173
1720	=item $client->coro (\&cb)	2174	=item $client->async (\&cb)
1721		2175
1722	Create a new coroutine, running the specified callback. The coroutine will	2176	Create a new coroutine, running the specified callback. The coroutine will
1723	be automatically cancelled when the client gets destroyed (e.g. on logout,	2177	be automatically cancelled when the client gets destroyed (e.g. on logout,
1724	or loss of connection).	2178	or loss of connection).
1725		2179
1726	=cut	2180	=cut
1727		2181
1728	sub cf::client::coro {	2182	sub cf::client::async {
1729	my ($self, $cb) = @_;	2183	my ($self, $cb) = @_;
1730		2184
1731	my $coro; $coro = async {	2185	my $coro = &Coro::async ($cb);
1732	eval {
1733	$cb->();
1734	};
1735	warn $@ if $@;
1736	};
1737		2186
1738	$coro->on_destroy (sub {	2187	$coro->on_destroy (sub {
1739	delete $self->{_coro}{$coro+0};	2188	delete $self->{_coro}{$coro+0};
1740	});	2189	});
1741		2190
…		…
1774		2223
1775	# here we export the classes and methods available to script code	2224	# here we export the classes and methods available to script code
1776		2225
1777	=pod	2226	=pod
1778		2227
1779	The following fucntions and emthods are available within a safe environment:	2228	The following functions and methods are available within a safe environment:
1780		2229
1781	cf::object contr pay_amount pay_player map	2230	cf::object contr pay_amount pay_player map
1782	cf::object::player player	2231	cf::object::player player
1783	cf::player peaceful	2232	cf::player peaceful
1784	cf::map trigger	2233	cf::map trigger
…		…
1869	#############################################################################	2318	#############################################################################
1870		2319
1871	=head2 EXTENSION DATABASE SUPPORT	2320	=head2 EXTENSION DATABASE SUPPORT
1872		2321
1873	Crossfire maintains a very simple database for extension use. It can	2322	Crossfire maintains a very simple database for extension use. It can
1874	currently store anything that can be serialised using Storable, which	2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1875	excludes objects.	2324	convert to/from binary).
1876		2325
1877	The parameter C<$family> should best start with the name of the extension	2326	The parameter C<$family> should best start with the name of the extension
1878	using it, it should be unique.	2327	using it, it should be unique.
1879		2328
1880	=over 4	2329	=over 4
1881		2330
1882	=item $hashref = cf::db_get $family
1883
1884	Return a hashref for use by the extension C<$family>, which can be
1885	modified. After modifications, you have to call C<cf::db_dirty> or
1886	C<cf::db_sync>.
1887
1888	=item $value = cf::db_get $family => $key	2331	=item $value = cf::db_get $family => $key
1889		2332
1890	Returns a single value from the database	2333	Returns a single value from the database.
1891
1892	=item cf::db_put $family => $hashref
1893
1894	Stores the given family hashref into the database. Updates are delayed, if
1895	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1896		2334
1897	=item cf::db_put $family => $key => $value	2335	=item cf::db_put $family => $key => $value
1898		2336
1899	Stores the given C<$value> in the family hash. Updates are delayed, if you	2337	Stores the given C<$value> in the family.
1900	want the data to be synced to disk immediately, use C<cf::db_sync>.
1901
1902	=item cf::db_dirty
1903
1904	Marks the database as dirty, to be updated at a later time.
1905
1906	=item cf::db_sync
1907
1908	Immediately write the database to disk I<if it is dirty>.
1909		2338
1910	=cut	2339	=cut
1911		2340
1912	our $DB;	2341	our $DB;
1913		2342
1914	{	2343	sub db_init {
1915	my $path = cf::localdir . "/database.pst";	2344	unless ($DB) {
		2345	$DB = BDB::db_create $DB_ENV;
1916		2346
1917	sub db_load() {	2347	cf::sync_job {
1918	$DB = stat $path ? Storable::retrieve $path : { };	2348	eval {
1919	}	2349	$DB->set_flags (BDB::CHKSUM);
1920		2350
1921	my $pid;	2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1922		2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1923	sub db_save() {	2353	cf::cleanup "db_open(db): $!" if $!;
1924	waitpid $pid, 0 if $pid;	2354	};
1925	if (0 == ($pid = fork)) {	2355	cf::cleanup "db_open(db): $@" if $@;
1926	$DB->{_meta}{version} = 1;
1927	Storable::nstore $DB, "$path~";
1928	rename "$path~", $path;
1929	cf::_exit 0 if defined $pid;
1930	}	2356	};
1931	}
1932
1933	my $dirty;
1934
1935	sub db_sync() {
1936	db_save if $dirty;
1937	undef $dirty;
1938	}
1939
1940	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1941	db_sync;
1942	});	2357	}
		2358	}
1943		2359
1944	sub db_dirty() {
1945	$dirty = 1;
1946	$idle->start;
1947	}
1948
1949	sub db_get($;$) {	2360	sub db_get($$) {
1950	@_ >= 2	2361	my $key = "$_[0]/$_[1]";
1951	? $DB->{$_[0]}{$_[1]}
1952	: ($DB->{$_[0]} ||= { })
1953	}
1954		2362
		2363	cf::sync_job {
		2364	BDB::db_get $DB, undef, $key, my $data;
		2365
		2366	$! ? ()
		2367	: $data
		2368	}
		2369	}
		2370
1955	sub db_put($$;$) {	2371	sub db_put($$$) {
1956	if (@_ >= 3) {	2372	BDB::dbreq_pri 4;
1957	$DB->{$_[0]}{$_[1]} = $_[2];	2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1958	} else {	2374	}
1959	$DB->{$_[0]} = $_[1];
1960	}
1961	db_dirty;
1962	}
1963		2375
1964	cf::global->attach (	2376	=item cf::cache $id => [$paths...], $processversion => $process
1965	prio => 10000,	2377
1966	on_cleanup => sub {	2378	Generic caching function that returns the value of the resource $id,
1967	db_sync;	2379	caching and regenerating as required.
		2380
		2381	This function can block.
		2382
		2383	=cut
		2384
		2385	sub cache {
		2386	my ($id, $src, $processversion, $process) = @_;
		2387
		2388	my $meta =
		2389	join "\x00",
		2390	$processversion,
		2391	map {
		2392	aio_stat $_
		2393	and Carp::croak "$_: $!";
		2394
		2395	($_, (stat _)[7,9])
		2396	} @$src;
		2397
		2398	my $dbmeta = db_get cache => "$id/meta";
		2399	if ($dbmeta ne $meta) {
		2400	# changed, we may need to process
		2401
		2402	my @data;
		2403	my $md5;
		2404
		2405	for (0 .. $#$src) {
		2406	0 <= aio_load $src->[$_], $data[$_]
		2407	or Carp::croak "$src->[$_]: $!";
1968	},	2408	}
1969	);	2409
		2410	# if processing is expensive, check
		2411	# checksum first
		2412	if (1) {
		2413	$md5 =
		2414	join "\x00",
		2415	$processversion,
		2416	map {
		2417	Coro::cede;
		2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2419	} 0.. $#$src;
		2420
		2421
		2422	my $dbmd5 = db_get cache => "$id/md5";
		2423	if ($dbmd5 eq $md5) {
		2424	db_put cache => "$id/meta", $meta;
		2425
		2426	return db_get cache => "$id/data";
		2427	}
		2428	}
		2429
		2430	my $t1 = Time::HiRes::time;
		2431	my $data = $process->(\@data);
		2432	my $t2 = Time::HiRes::time;
		2433
		2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2435
		2436	db_put cache => "$id/data", $data;
		2437	db_put cache => "$id/md5" , $md5;
		2438	db_put cache => "$id/meta", $meta;
		2439
		2440	return $data;
		2441	}
		2442
		2443	db_get cache => "$id/data"
1970	}	2444	}
		2445
		2446	=item fork_call { }, $args
		2447
		2448	Executes the given code block with the given arguments in a seperate
		2449	process, returning the results. Everything must be serialisable with
		2450	Coro::Storable. May, of course, block. Note that the executed sub may
		2451	never block itself or use any form of Event handling.
		2452
		2453	=cut
		2454
		2455	sub fork_call(&@) {
		2456	my ($cb, @args) = @_;
		2457
		2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2459	# or die "socketpair: $!";
		2460	pipe my $fh1, my $fh2
		2461	or die "pipe: $!";
		2462
		2463	if (my $pid = fork) {
		2464	close $fh2;
		2465
		2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2467	$res = Coro::Storable::thaw $res;
		2468
		2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2470
		2471	die $$res unless "ARRAY" eq ref $res;
		2472
		2473	return wantarray ? @$res : $res->[-1];
		2474	} else {
		2475	reset_signals;
		2476	local $SIG{__WARN__};
		2477	local $SIG{__DIE__};
		2478	eval {
		2479	close $fh1;
		2480
		2481	my @res = eval { $cb->(@args) };
		2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2483	};
		2484
		2485	warn $@ if $@;
		2486	_exit 0;
		2487	}
		2488	}
		2489
		2490
1971		2491
1972	#############################################################################	2492	#############################################################################
1973	# the server's main()	2493	# the server's init and main functions
		2494
		2495	sub load_facedata($) {
		2496	my ($path) = @_;
		2497
		2498	warn "loading facedata from $path\n";
		2499
		2500	my $facedata;
		2501	0 < aio_load $path, $facedata
		2502	or die "$path: $!";
		2503
		2504	$facedata = Coro::Storable::thaw $facedata;
		2505
		2506	$facedata->{version} == 2
		2507	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2508
		2509	{
		2510	my $faces = $facedata->{faceinfo};
		2511
		2512	while (my ($face, $info) = each %$faces) {
		2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2517	Coro::cede;
		2518	}
		2519
		2520	while (my ($face, $info) = each %$faces) {
		2521	next unless $info->{smooth};
		2522	my $idx = cf::face::find $face
		2523	or next;
		2524	if (my $smooth = cf::face::find $info->{smooth}) {
		2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2526	} else {
		2527	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2528	}
		2529	Coro::cede;
		2530	}
		2531	}
		2532
		2533	{
		2534	my $anims = $facedata->{animinfo};
		2535
		2536	while (my ($anim, $info) = each %$anims) {
		2537	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2538	Coro::cede;
		2539	}
		2540
		2541	cf::anim::invalidate_all; # d'oh
		2542	}
		2543
		2544	1
		2545	}
		2546
		2547	sub reload_regions {
		2548	load_resource_file "$MAPDIR/regions"
		2549	or die "unable to load regions file\n";
		2550	}
		2551
		2552	sub reload_facedata {
		2553	load_facedata "$DATADIR/facedata"
		2554	or die "unable to load facedata\n";
		2555	}
		2556
		2557	sub reload_archetypes {
		2558	load_resource_file "$DATADIR/archetypes"
		2559	or die "unable to load archetypes\n";
		2560	}
		2561
		2562	sub reload_treasures {
		2563	load_resource_file "$DATADIR/treasures"
		2564	or die "unable to load treasurelists\n";
		2565	}
		2566
		2567	sub reload_resources {
		2568	warn "reloading resource files...\n";
		2569
		2570	reload_regions;
		2571	reload_facedata;
		2572	reload_archetypes;
		2573	reload_treasures;
		2574
		2575	warn "finished reloading resource files\n";
		2576	}
		2577
		2578	sub init {
		2579	reload_resources;
		2580	}
1974		2581
1975	sub cfg_load {	2582	sub cfg_load {
1976	open my $fh, "<:utf8", cf::confdir . "/config"	2583	open my $fh, "<:utf8", "$CONFDIR/config"
1977	or return;	2584	or return;
1978		2585
1979	local $/;	2586	local $/;
1980	*CFG = YAML::Syck::Load <$fh>;	2587	*CFG = YAML::Syck::Load <$fh>;
		2588
		2589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2590
		2591	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2592	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2593
		2594	if (exists $CFG{mlockall}) {
		2595	eval {
		2596	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2597	and die "WARNING: m(un)lockall failed: $!\n";
		2598	};
		2599	warn $@ if $@;
		2600	}
1981	}	2601	}
1982		2602
1983	sub main {	2603	sub main {
1984	# we must not ever block the main coroutine	2604	# we must not ever block the main coroutine
1985	local $Coro::idle = sub {	2605	local $Coro::idle = sub {
1986	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1987	(Coro::unblock_sub {	2607	(async {
1988	Event::one_event;	2608	Event::one_event;
1989	})->();	2609	})->prio (Coro::PRIO_MAX);
1990	};	2610	};
1991		2611
1992	cfg_load;	2612	cfg_load;
1993	db_load;	2613	db_init;
1994	load_extensions;	2614	load_extensions;
		2615
		2616	$TICK_WATCHER->start;
1995	Event::loop;	2617	Event::loop;
1996	}	2618	}
1997		2619
1998	#############################################################################	2620	#############################################################################
1999	# initialisation	2621	# initialisation and cleanup
2000		2622
		2623	# install some emergency cleanup handlers
		2624	BEGIN {
		2625	for my $signal (qw(INT HUP TERM)) {
		2626	Event->signal (
		2627	reentrant => 0,
		2628	data => WF_AUTOCANCEL,
		2629	signal => $signal,
		2630	prio => 0,
		2631	cb => sub {
		2632	cf::cleanup "SIG$signal";
		2633	},
		2634	);
		2635	}
		2636	}
		2637
		2638	sub emergency_save() {
		2639	my $freeze_guard = cf::freeze_mainloop;
		2640
		2641	warn "enter emergency perl save\n";
		2642
		2643	cf::sync_job {
		2644	# use a peculiar iteration method to avoid tripping on perl
		2645	# refcount bugs in for. also avoids problems with players
		2646	# and maps saved/destroyed asynchronously.
		2647	warn "begin emergency player save\n";
		2648	for my $login (keys %cf::PLAYER) {
		2649	my $pl = $cf::PLAYER{$login} or next;
		2650	$pl->valid or next;
		2651	$pl->save;
		2652	}
		2653	warn "end emergency player save\n";
		2654
		2655	warn "begin emergency map save\n";
		2656	for my $path (keys %cf::MAP) {
		2657	my $map = $cf::MAP{$path} or next;
		2658	$map->valid or next;
		2659	$map->save;
		2660	}
		2661	warn "end emergency map save\n";
		2662
		2663	warn "begin emergency database checkpoint\n";
		2664	BDB::db_env_txn_checkpoint $DB_ENV;
		2665	warn "end emergency database checkpoint\n";
		2666	};
		2667
		2668	warn "leave emergency perl save\n";
		2669	}
		2670
		2671	sub post_cleanup {
		2672	my ($make_core) = @_;
		2673
		2674	warn Carp::longmess "post_cleanup backtrace"
		2675	if $make_core;
		2676	}
		2677
2001	sub reload() {	2678	sub do_reload_perl() {
2002	# can/must only be called in main	2679	# can/must only be called in main
2003	if ($Coro::current != $Coro::main) {	2680	if ($Coro::current != $Coro::main) {
2004	warn "can only reload from main coroutine\n";	2681	warn "can only reload from main coroutine";
2005	return;	2682	return;
2006	}	2683	}
2007		2684
2008	warn "reloading...";	2685	warn "reloading...";
2009		2686
2010	local $FREEZE = 1;	2687	warn "entering sync_job";
		2688
		2689	cf::sync_job {
		2690	cf::write_runtime; # external watchdog should not bark
2011	cf::emergency_save;	2691	cf::emergency_save;
		2692	cf::write_runtime; # external watchdog should not bark
2012		2693
2013	eval {	2694	warn "syncing database to disk";
		2695	BDB::db_env_txn_checkpoint $DB_ENV;
		2696
2014	# if anything goes wrong in here, we should simply crash as we already saved	2697	# if anything goes wrong in here, we should simply crash as we already saved
2015		2698
2016	# cancel all watchers	2699	warn "cancelling all WF_AUTOCANCEL watchers";
2017	for (Event::all_watchers) {	2700	for (Event::all_watchers) {
2018	$_->cancel if $_->data & WF_AUTOCANCEL;	2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2019	}	2702	}
2020		2703
		2704	warn "flushing outstanding aio requests";
		2705	for (;;) {
		2706	BDB::flush;
		2707	IO::AIO::flush;
		2708	Coro::cede;
		2709	last unless IO::AIO::nreqs || BDB::nreqs;
		2710	warn "iterate...";
		2711	}
		2712
		2713	++$RELOAD;
		2714
2021	# cancel all extension coros	2715	warn "cancelling all extension coros";
2022	$_->cancel for values %EXT_CORO;	2716	$_->cancel for values %EXT_CORO;
2023	%EXT_CORO = ();	2717	%EXT_CORO = ();
2024		2718
2025	# unload all extensions	2719	warn "removing commands";
2026	for (@exts) {	2720	%COMMAND = ();
		2721
		2722	warn "removing ext commands";
		2723	%EXTCMD = ();
		2724
		2725	warn "unloading/nuking all extensions";
		2726	for my $pkg (@EXTS) {
2027	warn "unloading <$_>";	2727	warn "... unloading $pkg";
2028	unload_extension $_;	2728
		2729	if (my $cb = $pkg->can ("unload")) {
		2730	eval {
		2731	$cb->($pkg);
		2732	1
		2733	} or warn "$pkg unloaded, but with errors: $@";
2029	}	2734	}
2030		2735
		2736	warn "... nuking $pkg";
		2737	Symbol::delete_package $pkg;
		2738	}
		2739
2031	# unload all modules loaded from $LIBDIR	2740	warn "unloading all perl modules loaded from $LIBDIR";
2032	while (my ($k, $v) = each %INC) {	2741	while (my ($k, $v) = each %INC) {
2033	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2034		2743
2035	warn "removing <$k>";	2744	warn "... unloading $k";
2036	delete $INC{$k};	2745	delete $INC{$k};
2037		2746
2038	$k =~ s/\.pm$//;	2747	$k =~ s/\.pm$//;
2039	$k =~ s/\//::/g;	2748	$k =~ s/\//::/g;
2040		2749
…		…
2043	}	2752	}
2044		2753
2045	Symbol::delete_package $k;	2754	Symbol::delete_package $k;
2046	}	2755	}
2047		2756
2048	# sync database to disk
2049	cf::db_sync;
2050	IO::AIO::flush;
2051
2052	# get rid of safe::, as good as possible	2757	warn "getting rid of safe::, as good as possible";
2053	Symbol::delete_package "safe::$_"	2758	Symbol::delete_package "safe::$_"
2054	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2759	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2055		2760
2056	# remove register_script_function callbacks
2057	# TODO
2058
2059	# unload cf.pm "a bit"	2761	warn "unloading cf.pm \"a bit\"";
2060	delete $INC{"cf.pm"};	2762	delete $INC{"cf.pm"};
		2763	delete $INC{"cf/pod.pm"};
2061		2764
2062	# don't, removes xs symbols, too,	2765	# don't, removes xs symbols, too,
2063	# and global variables created in xs	2766	# and global variables created in xs
2064	#Symbol::delete_package __PACKAGE__;	2767	#Symbol::delete_package __PACKAGE__;
2065		2768
2066	# reload cf.pm	2769	warn "unload completed, starting to reload now";
		2770
2067	warn "reloading cf.pm";	2771	warn "reloading cf.pm";
2068	require cf;	2772	require cf;
2069	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2070		2774
2071	# load config and database again	2775	warn "loading config and database again";
2072	cf::cfg_load;	2776	cf::cfg_load;
2073	cf::db_load;
2074		2777
2075	# load extensions
2076	warn "load extensions";	2778	warn "loading extensions";
2077	cf::load_extensions;	2779	cf::load_extensions;
2078		2780
2079	# reattach attachments to objects	2781	warn "reattaching attachments to objects/players";
2080	warn "reattach";	2782	_global_reattach; # objects, sockets
2081	_global_reattach;	2783	warn "reattaching attachments to maps";
2082	};	2784	reattach $_ for values %MAP;
		2785	warn "reattaching attachments to players";
		2786	reattach $_ for values %PLAYER;
2083		2787
2084	if ($@) {	2788	warn "leaving sync_job";
		2789
		2790	1
		2791	} or do {
2085	warn $@;	2792	warn $@;
2086	warn "error while reloading, exiting.";	2793	warn "error while reloading, exiting.";
2087	exit 1;	2794	exit 1;
2088	}	2795	};
2089		2796
2090	warn "reloaded successfully";	2797	warn "reloaded";
2091	};	2798	};
2092		2799
2093	#############################################################################	2800	our $RELOAD_WATCHER; # used only during reload
2094		2801
2095	unless ($LINK_MAP) {	2802	sub reload_perl() {
2096	$LINK_MAP = cf::map::new;	2803	# doing reload synchronously and two reloads happen back-to-back,
		2804	# coro crashes during coro_state_free->destroy here.
2097		2805
2098	$LINK_MAP->width (41);	2806	$RELOAD_WATCHER ||= Event->timer (
2099	$LINK_MAP->height (41);	2807	reentrant => 0,
2100	$LINK_MAP->alloc;
2101	$LINK_MAP->path ("{link}");
2102	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2103	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2104
2105	# dirty hack because... archetypes are not yet loaded
2106	Event->timer (
2107	after => 2,	2808	after => 0,
		2809	data => WF_AUTOCANCEL,
2108	cb => sub {	2810	cb => sub {
2109	$_[0]->w->cancel;	2811	do_reload_perl;
2110		2812	undef $RELOAD_WATCHER;
2111	# provide some exits "home"
2112	my $exit = cf::object::new "exit";
2113
2114	$exit->slaying ($EMERGENCY_POSITION->[0]);
2115	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2116	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2117
2118	$LINK_MAP->insert ($exit->clone, 19, 19);
2119	$LINK_MAP->insert ($exit->clone, 19, 20);
2120	$LINK_MAP->insert ($exit->clone, 19, 21);
2121	$LINK_MAP->insert ($exit->clone, 20, 19);
2122	$LINK_MAP->insert ($exit->clone, 20, 21);
2123	$LINK_MAP->insert ($exit->clone, 21, 19);
2124	$LINK_MAP->insert ($exit->clone, 21, 20);
2125	$LINK_MAP->insert ($exit->clone, 21, 21);
2126
2127	$exit->destroy;
2128	});	2813	},
2129		2814	);
2130	$LINK_MAP->{deny_save} = 1;
2131	$LINK_MAP->{deny_reset} = 1;
2132
2133	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2134	}	2815	}
2135
2136	register "<global>", __PACKAGE__;
2137		2816
2138	register_command "reload" => sub {	2817	register_command "reload" => sub {
2139	my ($who, $arg) = @_;	2818	my ($who, $arg) = @_;
2140		2819
2141	if ($who->flag (FLAG_WIZ)) {	2820	if ($who->flag (FLAG_WIZ)) {
2142	$who->message ("start of reload.");
2143	reload;
2144	$who->message ("end of reload.");	2821	$who->message ("reloading server.");
		2822	async { reload_perl };
2145	}	2823	}
2146	};	2824	};
2147		2825
2148	unshift @INC, $LIBDIR;	2826	unshift @INC, $LIBDIR;
		2827
		2828	my $bug_warning = 0;
		2829
		2830	our @WAIT_FOR_TICK;
		2831	our @WAIT_FOR_TICK_BEGIN;
		2832
		2833	sub wait_for_tick {
		2834	return unless $TICK_WATCHER->is_active;
		2835	return if $Coro::current == $Coro::main;
		2836
		2837	my $signal = new Coro::Signal;
		2838	push @WAIT_FOR_TICK, $signal;
		2839	$signal->wait;
		2840	}
		2841
		2842	sub wait_for_tick_begin {
		2843	return unless $TICK_WATCHER->is_active;
		2844	return if $Coro::current == $Coro::main;
		2845
		2846	my $signal = new Coro::Signal;
		2847	push @WAIT_FOR_TICK_BEGIN, $signal;
		2848	$signal->wait;
		2849	}
2149		2850
2150	$TICK_WATCHER = Event->timer (	2851	$TICK_WATCHER = Event->timer (
2151	reentrant => 0,	2852	reentrant => 0,
		2853	parked => 1,
2152	prio => 0,	2854	prio => 0,
2153	at => $NEXT_TICK || $TICK,	2855	at => $NEXT_TICK || $TICK,
2154	data => WF_AUTOCANCEL,	2856	data => WF_AUTOCANCEL,
2155	cb => sub {	2857	cb => sub {
2156	unless ($FREEZE) {	2858	if ($Coro::current != $Coro::main) {
		2859	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2860	unless ++$bug_warning > 10;
		2861	return;
		2862	}
		2863
		2864	$NOW = $tick_start = Event::time;
		2865
2157	cf::server_tick; # one server iteration	2866	cf::server_tick; # one server iteration
		2867
2158	$RUNTIME += $TICK;	2868	$RUNTIME += $TICK;
2159	}
2160
2161	$NEXT_TICK += $TICK;	2869	$NEXT_TICK += $TICK;
2162		2870
		2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2872	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2873	Coro::async_pool {
		2874	write_runtime
		2875	or warn "ERROR: unable to write runtime file: $!";
		2876	};
		2877	}
		2878
		2879	# my $AFTER = Event::time;
		2880	# warn $AFTER - $NOW;#d#
		2881
		2882	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2883	$sig->send;
		2884	}
		2885	while (my $sig = shift @WAIT_FOR_TICK) {
		2886	$sig->send;
		2887	}
		2888
		2889	$NOW = Event::time;
		2890
2163	# if we are delayed by four ticks or more, skip them all	2891	# if we are delayed by four ticks or more, skip them all
2164	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2165		2893
2166	$TICK_WATCHER->at ($NEXT_TICK);	2894	$TICK_WATCHER->at ($NEXT_TICK);
2167	$TICK_WATCHER->start;	2895	$TICK_WATCHER->start;
		2896
		2897	$LOAD = ($NOW - $tick_start) / $TICK;
		2898	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2899
		2900	_post_tick;
		2901
		2902
2168	},	2903	},
2169	);	2904	);
2170		2905
		2906	{
2171	IO::AIO::max_poll_time $TICK * 0.2;	2907	BDB::max_poll_time $TICK * 0.1;
2172		2908	$BDB_POLL_WATCHER = Event->io (
2173	Event->io (	2909	reentrant => 0,
2174	fd => IO::AIO::poll_fileno,	2910	fd => BDB::poll_fileno,
2175	poll => 'r',	2911	poll => 'r',
2176	prio => 5,	2912	prio => 0,
2177	data => WF_AUTOCANCEL,
2178	cb => \&IO::AIO::poll_cb,
2179	);
2180
2181	Event->timer (
2182	data => WF_AUTOCANCEL,	2913	data => WF_AUTOCANCEL,
2183	after => 0,	2914	cb => \&BDB::poll_cb,
2184	interval => 10,	2915	);
2185	cb => sub {	2916	BDB::min_parallel 8;
2186	(Coro::unblock_sub {	2917
2187	write_runtime	2918	BDB::set_sync_prepare {
2188	or warn "ERROR: unable to write runtime file: $!";	2919	my $status;
		2920	my $current = $Coro::current;
		2921	(
		2922	sub {
		2923	$status = $!;
		2924	$current->ready; undef $current;
		2925	},
		2926	sub {
		2927	Coro::schedule while defined $current;
		2928	$! = $status;
		2929	},
		2930	)
		2931	};
		2932
		2933	unless ($DB_ENV) {
		2934	$DB_ENV = BDB::db_env_create;
		2935
		2936	cf::sync_job {
		2937	eval {
		2938	BDB::db_env_open
		2939	$DB_ENV,
		2940	$BDBDIR,
		2941	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2942	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2943	0666;
		2944
		2945	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2946
		2947	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2948	$DB_ENV->set_lk_detect;
		2949	};
		2950
		2951	cf::cleanup "db_env_open(db): $@" if $@;
2189	})->();	2952	};
2190	},	2953	}
2191	);	2954	}
		2955
		2956	{
		2957	IO::AIO::min_parallel 8;
		2958
		2959	undef $Coro::AIO::WATCHER;
		2960	IO::AIO::max_poll_time $TICK * 0.1;
		2961	$AIO_POLL_WATCHER = Event->io (
		2962	reentrant => 0,
		2963	data => WF_AUTOCANCEL,
		2964	fd => IO::AIO::poll_fileno,
		2965	poll => 'r',
		2966	prio => 6,
		2967	cb => \&IO::AIO::poll_cb,
		2968	);
		2969	}
		2970
		2971	my $_log_backtrace;
		2972
		2973	sub _log_backtrace {
		2974	my ($msg, @addr) = @_;
		2975
		2976	$msg =~ s/\n//;
		2977
		2978	# limit the # of concurrent backtraces
		2979	if ($_log_backtrace < 2) {
		2980	++$_log_backtrace;
		2981	async {
		2982	my @bt = fork_call {
		2983	@addr = map { sprintf "%x", $_ } @addr;
		2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2986	or die "addr2line: $!";
		2987
		2988	my @funcs;
		2989	my @res = <$fh>;
		2990	chomp for @res;
		2991	while (@res) {
		2992	my ($func, $line) = splice @res, 0, 2, ();
		2993	push @funcs, "[$func] $line";
		2994	}
		2995
		2996	@funcs
		2997	};
		2998
		2999	LOG llevInfo, "[ABT] $msg\n";
		3000	LOG llevInfo, "[ABT] $_\n" for @bt;
		3001	--$_log_backtrace;
		3002	};
		3003	} else {
		3004	LOG llevInfo, "[ABT] $msg\n";
		3005	LOG llevInfo, "[ABT] [suppressed]\n";
		3006	}
		3007	}
		3008
		3009	# load additional modules
		3010	use cf::pod;
		3011
		3012	END { cf::emergency_save }
2192		3013
2193	1	3014	1
2194		3015

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