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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.112 by root, Mon Jan 1 13:31:47 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	248	=item cf::lock_wait $string
180		249
181	sub to_json($) {	250	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	251
183	JSON::Syck::Dump $_[0]	252	=item my $lock = cf::lock_acquire $string
		253
		254	Wait until the given lock is available and then acquires it and returns
		255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		256	for example when the coroutine gets canceled), the lock is automatically
		257	returned.
		258
		259	Lock names should begin with a unique identifier (for example, cf::map::find
		260	uses map_find and cf::map::load uses map_load).
		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
		266	=cut
		267
		268	our %LOCK;
		269
		270	sub lock_wait($) {
		271	my ($key) = @_;
		272
		273	# wait for lock, if any
		274	while ($LOCK{$key}) {
		275	push @{ $LOCK{$key} }, $Coro::current;
		276	Coro::schedule;
		277	}
184	}	278	}
		279
		280	sub lock_acquire($) {
		281	my ($key) = @_;
		282
		283	# wait, to be sure we are not locked
		284	lock_wait $key;
		285
		286	$LOCK{$key} = [];
		287
		288	Coro::guard {
		289	# wake up all waiters, to be on the safe side
		290	$_->ready for @{ delete $LOCK{$key} };
		291	}
		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	$guard
		308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
185		319
186	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
187		321
188	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
198		332
199	sub sync_job(&) {	333	sub sync_job(&) {
200	my ($job) = @_;	334	my ($job) = @_;
201		335
202	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
203	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
205		341
206	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	343	# (but this is cancel-safe)
208	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
209		345
210	my $busy = 1;	346	my $busy = 1;
211	my @res;	347	my @res;
212		348
213	(Coro::async {	349	(async {
214	@res = eval { $job->() };	350	@res = eval { $job->() };
215	warn $@ if $@;	351	warn $@ if $@;
216	undef $busy;	352	undef $busy;
217	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
218		354
219	while ($busy) {	355	while ($busy) {
220	Coro::cede_notself;	356	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	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
223		365
224	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
225	} else {	367	} else {
226	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
227		369
228	$job->()	370	$job->()
229	}	371	}
230	}	372	}
231		373
232	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
233		375
234	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
236		378
237	=cut	379	=cut
238		380
239	sub coro(&) {	381	sub async_ext(&) {
240	my $cb = shift;	382	my $cb = shift;
241		383
242	my $coro; $coro = async {	384	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		385
249	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
251	});	388	});
252	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
253		390
254	$coro	391	$coro
255	}	392	}
256		393
257	sub write_runtime {	394	sub write_runtime {
258	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";
259		405
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	407	or return;
262		408
		409	my $value = $cf::RUNTIME + 90 + 10;
263	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
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	414	and return;
266		415
		416	# always fsync - this file is important
267	aio_fsync $fh	417	aio_fsync $fh
268	and return;	418	and return;
269		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
270	close $fh	423	close $fh
271	or return;	424	or return;
272		425
273	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
274	and return;	427	and return;
275		428
		429	warn "runtime file written.\n";#d#
		430
276	1	431	1
277	}	432	}
278		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
279	=back	445	=back
280		446
281	=cut	447	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	if ($path =~ s{^\?random/}{}) {
295	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
296	$self->{random} = cf::from_json $data;
297	} else {
298	if ($path =~ s{^~([^/]+)?}{}) {
299	$self->{user_rel} = 1;
300
301	if (defined $1) {
302	$self->{user} = $1;
303	} elsif ($base =~ m{^~([^/]+)/}) {
304	$self->{user} = $1;
305	} else {
306	warn "cannot resolve user-relative path without user <$path,$base>\n";
307	}
308	} elsif ($path =~ /^\//) {
309	# already absolute
310	} else {
311	$base =~ s{[^/]+/?$}{};
312	return $class->new ("$base/$path");
313	}
314
315	for ($path) {
316	redo if s{/\.?/}{/};
317	redo if s{/[^/]+/\.\./}{/};
318	}
319	}
320
321	$self->{path} = $path;
322
323	$self
324	}
325
326	# the name / primary key / in-game path
327	sub as_string {
328	my ($self) = @_;
329
330	$self->{user_rel} ? "~$self->{user}$self->{path}"
331	: $self->{random} ? "?random/$self->{path}"
332	: $self->{path}
333	}
334
335	# the displayed name, this is a one way mapping
336	sub visible_name {
337	my ($self) = @_;
338
339	# if (my $rmp = $self->{random}) {
340	# # todo: be more intelligent about this
341	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
342	# } else {
343	$self->as_string
344	# }
345	}
346
347	# escape the /'s in the path
348	sub _escaped_path {
349	# ∕ is U+2215
350	(my $path = $_[0]{path}) =~ s/\//∕/g;
351	$path
352	}
353
354	# the original (read-only) location
355	sub load_path {
356	my ($self) = @_;
357
358	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
359	}
360
361	# the temporary/swap location
362	sub save_path {
363	my ($self) = @_;
364
365	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
366	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
367	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
368	}
369
370	# the unique path, might be eq to save_path
371	sub uniq_path {
372	my ($self) = @_;
373
374	$self->{user_rel} || $self->{random}
375	? undef
376	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
377	}
378
379	# return random map parameters, or undef
380	sub random_map_params {
381	my ($self) = @_;
382
383	$self->{random}
384	}
385
386	# this is somewhat ugly, but style maps do need special treatment
387	sub is_style_map {
388	$_[0]{path} =~ m{^/styles/}
389	}
390
391	package cf;
392		448
393	#############################################################################	449	#############################################################################
394		450
395	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
396		452
…		…
522	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
523	our @CB_MAP = ();	579	our @CB_MAP = ();
524		580
525	my %attachment;	581	my %attachment;
526		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
527	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
528	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
529		591
530	use sort 'stable';	592	use sort 'stable';
531		593
…		…
702	# object support	764	# object support
703		765
704	sub reattach {	766	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
707		771
708	my $registry = $obj->registry;	772	my $registry = $obj->registry;
709		773
710	@$registry = ();	774	@$registry = ();
711		775
…		…
758	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
759		823
760	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
761	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
762	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
763	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	828	close $fh;
765		829
766	if (@$objs) {	830	if (@$objs) {
767	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) {
768	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
769	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
770	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
771	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	836	close $fh;
773	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
774	}	838	}
775	} else {	839	} else {
776	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
804	or return;	868	or return;
805		869
806	unless (aio_stat "$filename.pst") {	870	unless (aio_stat "$filename.pst") {
807	(aio_load "$filename.pst", $av) >= 0	871	(aio_load "$filename.pst", $av) >= 0
808	or return;	872	or return;
809	$av = eval { (Storable::thaw <$av>)->{objs} };	873	$av = eval { (Storable::thaw $av)->{objs} };
810	}	874	}
811		875
		876	warn sprintf "loading %s (%d)\n",
		877	$filename, length $data, scalar @{$av || []};#d#
812	return ($data, $av);	878	return ($data, $av);
813	}	879	}
814		880
815	#############################################################################	881	#############################################################################
816	# command handling &c	882	# command handling &c
…		…
841	=cut	907	=cut
842		908
843	sub register_extcmd {	909	sub register_extcmd {
844	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
845		911
846	my $caller = caller;
847	#warn "registering extcmd '$name' to '$caller'";
848
849	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
850	}	913	}
851		914
852	cf::player->attach (	915	cf::player->attach (
853	on_command => sub {	916	on_command => sub {
854	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
867		930
868	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
869		932
870	if (ref $msg) {	933	if (ref $msg) {
871	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
872	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
873	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
874	}	937	}
875	}	938	}
876	} else {	939	} else {
877	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
879		942
880	cf::override;	943	cf::override;
881	},	944	},
882	);	945	);
883		946
884	sub register {
885	my ($base, $pkg) = @_;
886
887	#TODO
888	}
889
890	sub load_extension {	947	sub load_extension {
891	my ($path) = @_;	948	my ($path) = @_;
892		949
893	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
894	my $base = $1;	951	my $base = $1;
895	my $pkg = $1;	952	my $pkg = $1;
896	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
897	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
898		955
899	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
900		957
901	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
902	or die "$path: $!";	959	or die "$path: $!";
903		960
904	my $source =	961	my $source =
905	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
906	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
907	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
908	. "\n};\n1";	965	. "\n};\n1";
909		966
910	eval $source	967	unless (eval $source) {
911	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
912	: "extension disabled.\n";	969	: "extension disabled.\n";
913		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
914	push @exts, $pkg;	971	warn $@;
915	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
916		973	exit 1;
917	# no strict 'refs';	974	}
918	# @{"$pkg\::ISA"} = ext::;	975	die $@;
919
920	register $base, $pkg;
921	}
922
923	sub unload_extension {
924	my ($pkg) = @_;
925
926	warn "removing extension $pkg\n";
927
928	# remove hooks
929	#TODO
930	# for my $idx (0 .. $#PLUGIN_EVENT) {
931	# delete $hook[$idx]{$pkg};
932	# }	976	}
933		977
934	# remove commands	978	push @EXTS, $pkg;
935	for my $name (keys %COMMAND) {
936	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
937
938	if (@cb) {
939	$COMMAND{$name} = \@cb;
940	} else {
941	delete $COMMAND{$name};
942	}
943	}
944
945	# remove extcmds
946	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
947	delete $EXTCMD{$name};
948	}
949
950	if (my $cb = $pkg->can ("unload")) {
951	eval {
952	$cb->($pkg);
953	1
954	} or warn "$pkg unloaded, but with errors: $@";
955	}
956
957	Symbol::delete_package $pkg;
958	}	979	}
959		980
960	sub load_extensions {	981	sub load_extensions {
961	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	983	next unless -r $ext;
…		…
966	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
967	}	988	}
968	}	989	}
969		990
970	#############################################################################	991	#############################################################################
971	# load/save/clean perl data associated with a map
972
973	*cf::mapsupport::on_clean = sub {
974	my ($map) = @_;
975
976	my $path = $map->tmpname;
977	defined $path or return;
978
979	unlink "$path.pst";
980	};
981
982	cf::map->attach (prio => -10000, package => cf::mapsupport::);
983
984	#############################################################################
985	# load/save perl data associated with player->ob objects
986
987	sub all_objects(@) {
988	@_, map all_objects ($_->inv), @_
989	}
990
991	# TODO: compatibility cruft, remove when no longer needed
992	cf::player->attach (
993	on_load => sub {
994	my ($pl, $path) = @_;
995
996	for my $o (all_objects $pl->ob) {
997	if (my $value = $o->get_ob_key_value ("_perl_data")) {
998	$o->set_ob_key_value ("_perl_data");
999
1000	%$o = %{ Storable::thaw pack "H*", $value };
1001	}
1002	}
1003	},
1004	);
1005
1006	#############################################################################
1007		992
1008	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1009		994
1010	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1011		996
		997	=cut
		998
		999	package cf::player;
		1000
		1001	use Coro::AIO;
		1002
1012	=head3 cf::player	1003	=head3 cf::player
1013		1004
1014	=over 4	1005	=over 4
1015		1006
1016	=item cf::player::exists $login	1007	=item cf::player::find $login
1017		1008
1018	Returns true when the given account exists.	1009	Returns the given player object, loading it if necessary (might block).
1019		1010
1020	=cut	1011	=cut
1021		1012
1022	sub cf::player::exists($) {	1013	sub playerdir($) {
1023	cf::player::find $_[0]	1014	"$PLAYERDIR/"
1024	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1025	}	1016	}
1026		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
1027	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1028		1190
1029	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1030		1192
1031	=cut	1193	=cut
1032		1194
1033	sub cf::player::ext_reply($$$%) {	1195	sub ext_reply($$%) {
1034	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1035		1197
1036	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1037		1199
1038	$self->send ("ext " . to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
		1201	}
		1202
		1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		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
1039	}	1242	}
1040		1243
1041	=back	1244	=back
1042
1043		1245
1044	=head3 cf::map	1246	=head3 cf::map
1045		1247
1046	=over 4	1248	=over 4
1047		1249
…		…
1050	package cf::map;	1252	package cf::map;
1051		1253
1052	use Fcntl;	1254	use Fcntl;
1053	use Coro::AIO;	1255	use Coro::AIO;
1054		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1055	our $MAX_RESET = 7200;	1261	our $MAX_RESET = 3600;
1056	our $DEFAULT_RESET = 3600;	1262	our $DEFAULT_RESET = 3000;
1057		1263
1058	sub generate_random_map {	1264	sub generate_random_map {
1059	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1060
1061	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1062	cf::map::_create_random_map	1267	$self->_create_random_map (
1063	$path,
1064	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1065	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1066	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1067	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1068	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1069	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1070	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1071	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1072	$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},
1073	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1074	(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"
1075	}	1409	}
1076		1410
1077	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1078	# all maps in C++...	1412	# all maps in C++...
1079	sub change_all_map_light {	1413	sub change_all_map_light {
1080	my ($change) = @_;	1414	my ($change) = @_;
1081		1415
1082	$_->change_map_light ($change) for values %cf::MAP;	1416	$_->change_map_light ($change)
		1417	for grep $_->outdoor, values %cf::MAP;
1083	}	1418	}
1084		1419
		1420	sub unlink_save {
		1421	my ($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
1085	sub try_load_header($) {	1428	sub load_header_from($) {
1086	my ($path) = @_;	1429	my ($self, $path) = @_;
1087		1430
1088	utf8::encode $path;	1431	utf8::encode $path;
1089	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1090	or return;	1436	or return;
1091		1437
1092	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
1093	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1094		1484
1095	$map->load_header ($path)	1485	$self->default_region (cf::region::find_by_path $self->{path})
1096	or return;	1486	unless $self->default_region;
1097		1487
1098	$map->{load_path} = $path;	1488	1
1099
1100	$map
1101	}	1489	}
1102		1490
		1491	sub find;
1103	sub find_map {	1492	sub find {
1104	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1105		1494
1106	#warn "find_map<$path,$origin>\n";#d#
1107
1108	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1109	my $key = $path->as_string;
1110		1496
		1497	cf::lock_wait "map_find:$path";
		1498
1111	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1112	# do it the slow way	1500	my $guard = cf::lock_acquire "map_find:$path";
1113	my $map = try_load_header $path->save_path;	1501	my $map = new_from_path cf::map $path
1114
1115	if ($map) {
1116	# safety
1117	$map->{instantiate_time} = $cf::RUNTIME
1118	if $map->{instantiate_time} > $cf::RUNTIME;
1119	} else {
1120	if (my $rmp = $path->random_map_params) {
1121	$map = generate_random_map $key, $rmp;
1122	} else {
1123	$map = try_load_header $path->load_path;
1124	}
1125
1126	$map or return;	1502	or return;
1127		1503
1128	$map->{load_original} = 1;
1129	$map->{instantiate_time} = $cf::RUNTIME;
1130	$map->instantiate;
1131
1132	# per-player maps become, after loading, normal maps
1133	$map->per_player (0) if $path->{user_rel};
1134	}
1135
1136	$map->path ($key);
1137	$map->{path} = $path;
1138	$map->last_access ($cf::RUNTIME);	1504	$map->{last_save} = $cf::RUNTIME;
1139		1505
1140	if ($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;
1141	$map->reset;	1512	$map->reset;
1142	$map = find_map $path;	1513	undef $guard;
		1514	return find $path;
1143	}	1515	}
1144		1516
1145	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1146	}	1518	}
1147	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1148		1523
1149	sub load {	1524	sub load {
1150	my ($self) = @_;	1525	my ($self) = @_;
1151		1526
1152	return if $self->in_memory != cf::MAP_SWAPPED;	1527	local $self->{deny_reset} = 1; # loading can take a long time
1153
1154	$self->in_memory (cf::MAP_LOADING);
1155		1528
1156	my $path = $self->{path};	1529	my $path = $self->{path};
1157		1530
		1531	{
		1532	my $guard = cf::lock_acquire "map_load:$path";
		1533
		1534	return if $self->in_memory != cf::MAP_SWAPPED;
		1535
		1536	$self->in_memory (cf::MAP_LOADING);
		1537
1158	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1159	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1160	or return;	1544	or return;
1161		1545
1162	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1163	if delete $self->{load_original};	1547	if delete $self->{load_original};
1164		1548
1165	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1166	utf8::encode $uniq;	1550	utf8::encode $uniq;
1167	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1168	$self->clear_unique_items;	1552	$self->clear_unique_items;
1169	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1170	}	1554	}
1171	}	1555	}
1172		1556
		1557	Coro::cede;
1173	# now do the right thing for maps	1558	# now do the right thing for maps
1174	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1175
1176	if ($self->{path}->is_style_map) {
1177	$self->{deny_save} = 1;
1178	$self->{deny_reset} = 1;
1179	} else {
1180	$self->fix_auto_apply;
1181	$self->decay_objects;
1182	$self->update_buttons;
1183	$self->set_darkness_map;
1184	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1185	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;
1186	$self->activate;	1571	$self->activate;
1187	}	1572	}
1188		1573
1189	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
1190	}	1575	}
1191		1576
1192	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	$neigh->load;
		1610	}
		1611	}
		1612
		1613	sub find_sync {
1193	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1194		1615
1195	#warn "load_map_sync<$path, $origin>\n";#d#	1616	cf::sync_job { find $path, $origin }
		1617	}
1196		1618
1197	cf::sync_job {	1619	sub do_load_sync {
1198	my $map = cf::map::find_map $path, $origin	1620	my ($map) = @_;
1199	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;
1200	$map->load;	1643	$map->load;
1201	$map	1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
1202	}	1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
1203	}	1653	}
1204		1654
1205	sub save {	1655	sub save {
1206	my ($self) = @_;	1656	my ($self) = @_;
1207		1657
1208	my $save = $self->{path}->save_path; utf8::encode $save;	1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1209	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1210		1659
1211	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1212		1661
1213	return unless $self->dirty;	1662	return unless $self->dirty;
1214		1663
		1664	my $save = $self->save_path; utf8::encode $save;
		1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1666
1215	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1216		1668
1217	return if $self->{deny_save};	1669	return if $self->{deny_save};
1218		1670
		1671	local $self->{last_access} = $self->last_access;#d#
		1672
		1673	cf::async {
		1674	$_->contr->save for $self->players;
		1675	};
		1676
1219	if ($uniq) {	1677	if ($uniq) {
1220	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1221	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1222	} else {	1680	} else {
1223	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1224	}	1682	}
1225	}	1683	}
1226		1684
1227	sub swap_out {	1685	sub swap_out {
1228	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;
1229		1692
1230	return if $self->players;	1693	return if $self->players;
1231	return if $self->in_memory != cf::MAP_IN_MEMORY;	1694	return if $self->in_memory != cf::MAP_IN_MEMORY;
1232	return if $self->{deny_save};	1695	return if $self->{deny_save};
1233		1696
1234	$self->save;
1235	$self->clear;	1697	$self->clear;
1236	$self->in_memory (cf::MAP_SWAPPED);	1698	$self->in_memory (cf::MAP_SWAPPED);
1237	}	1699	}
1238		1700
1239	sub reset_at {	1701	sub reset_at {
1240	my ($self) = @_;	1702	my ($self) = @_;
1241		1703
1242	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1243	return 1e100 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1244	return 1e100 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1245		1707
1246	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1247	my $to = $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1248	$to = $MAX_RESET if $to > $MAX_RESET;
1249		1710
1250	$time + $to	1711	$time + $to
1251	}	1712	}
1252		1713
1253	sub should_reset {	1714	sub should_reset {
1254	my ($self) = @_;	1715	my ($self) = @_;
1255		1716
1256	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1257	}	1718	}
1258		1719
1259	sub unlink_save {
1260	my ($self) = @_;
1261
1262	utf8::encode (my $save = $self->{path}->save_path);
1263	aioreq_pri 3; IO::AIO::aio_unlink $save;
1264	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1265	}
1266
1267	sub reset {	1720	sub reset {
1268	my ($self) = @_;	1721	my ($self) = @_;
1269		1722
		1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1724
1270	return if $self->players;	1725	return if $self->players;
1271	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1272		1727
1273	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1274		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
1275	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1276		1743
1277	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1278		1745
1279	$self->unlink_save;	1746	$self->unlink_save;
1280	$self->destroy;	1747	$self->destroy;
1281	}	1748	}
1282		1749
1283	sub customise_for {	1750	my $nuke_counter = "aaaa";
1284	my ($map, $ob) = @_;
1285		1751
1286	if ($map->per_player) {	1752	sub nuke {
1287	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1753	my ($self) = @_;
1288	}
1289		1754
1290	$map	1755	delete $cf::MAP{$self->path};
1291	}
1292		1756
1293	sub emergency_save {	1757	$self->unlink_save;
1294	local $cf::FREEZE = 1;
1295		1758
1296	warn "enter emergency map save\n";	1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
		1761	$self->{deny_save} = 1;
		1762	$self->reset_timeout (1);
		1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1297		1764
1298	cf::sync_job {	1765	$cf::MAP{$self->path} = $self;
1299	warn "begin emergency map save\n";	1766
1300	$_->save for values %cf::MAP;	1767	$self->reset; # polite request, might not happen
		1768	}
		1769
		1770	=item cf::map::unique_maps
		1771
		1772	Returns an arrayref of paths of all shared maps that have
		1773	instantiated unique items. May block.
		1774
		1775	=cut
		1776
		1777	sub unique_maps() {
		1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
		1780
		1781	my @paths;
		1782
		1783	for (@$files) {
		1784	utf8::decode $_;
		1785	next if /\.pst$/;
		1786	next unless /^$PATH_SEP/o;
		1787
		1788	push @paths, cf::map::normalise $_;
1301	};	1789	}
1302		1790
1303	warn "end emergency map save\n";	1791	\@paths
1304	}	1792	}
1305		1793
1306	package cf;	1794	package cf;
1307		1795
1308	=back	1796	=back
1309		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
1310		1824
1311	=head3 cf::object::player	1825	=head3 cf::object::player
1312		1826
1313	=over 4	1827	=over 4
1314		1828
…		…
1350	(ref $cf::CFG{"may_$access"}	1864	(ref $cf::CFG{"may_$access"}
1351	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1865	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1352	: $cf::CFG{"may_$access"})	1866	: $cf::CFG{"may_$access"})
1353	}	1867	}
1354		1868
		1869	=item $player_object->enter_link
		1870
		1871	Freezes the player and moves him/her to a special map (C<{link}>).
		1872
		1873	The player should be reasonably safe there for short amounts of time. You
		1874	I<MUST> call C<leave_link> as soon as possible, though.
		1875
		1876	Will never block.
		1877
		1878	=item $player_object->leave_link ($map, $x, $y)
		1879
		1880	Moves the player out of the special C<{link}> map onto the specified
		1881	map. If the map is not valid (or omitted), the player will be moved back
		1882	to the location he/she was before the call to C<enter_link>, or, if that
		1883	fails, to the emergency map position.
		1884
		1885	Might block.
		1886
		1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($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	$LINK_MAP
		1897	}
		1898
1355	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1356	my ($self) = @_;	1900	my ($self) = @_;
1357		1901
1358	return if $self->map == $LINK_MAP;	1902	$self->deactivate_recursive;
1359		1903
		1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1905
1360	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1361	if $self->map;	1907	if $self->map;
1362		1908
1363	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1364	$self->deactivate_recursive;
1365	}	1910	}
1366		1911
1367	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1368	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1369		1914
1370	my $link_pos = delete $self->{_link_pos};	1915	my $link_pos = delete $self->{_link_pos};
1371		1916
1372	unless ($map) {	1917	unless ($map) {
1373	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1374
1375	# restore original map position	1918	# restore original map position
1376	($map, $x, $y) = @{ $link_pos || [] };	1919	($map, $x, $y) = @{ $link_pos || [] };
1377	$map = cf::map::find_map $map;	1920	$map = cf::map::find $map;
1378		1921
1379	unless ($map) {	1922	unless ($map) {
1380	($map, $x, $y) = @$EMERGENCY_POSITION;	1923	($map, $x, $y) = @$EMERGENCY_POSITION;
1381	$map = cf::map::find_map $map	1924	$map = cf::map::find $map
1382	or die "FATAL: cannot load emergency map\n";	1925	or die "FATAL: cannot load emergency map\n";
1383	}	1926	}
1384	}	1927	}
1385		1928
1386	($x, $y) = (-1, -1)	1929	($x, $y) = (-1, -1)
…		…
1389	# use -1 or undef as default coordinates, not 0, 0	1932	# use -1 or undef as default coordinates, not 0, 0
1390	($x, $y) = ($map->enter_x, $map->enter_y)	1933	($x, $y) = ($map->enter_x, $map->enter_y)
1391	if $x <=0 && $y <= 0;	1934	if $x <=0 && $y <= 0;
1392		1935
1393	$map->load;	1936	$map->load;
		1937	$map->load_diag;
1394		1938
		1939	return unless $self->contr->active;
1395	$self->activate_recursive;	1940	$self->activate_recursive;
		1941
		1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1396	$self->enter_map ($map, $x, $y);	1943	$self->enter_map ($map, $x, $y);
1397	}	1944	}
1398		1945
		1946	cf::player->attach (
		1947	on_logout => sub {
		1948	my ($pl) = @_;
		1949
		1950	# abort map switching before logout
		1951	if ($pl->ob->{_link_pos}) {
		1952	cf::sync_job {
		1953	$pl->ob->leave_link
		1954	};
		1955	}
		1956	},
		1957	on_login => sub {
		1958	my ($pl) = @_;
		1959
		1960	# try to abort aborted map switching on player login :)
		1961	# should happen only on crashes
		1962	if ($pl->ob->{_link_pos}) {
		1963	$pl->ob->enter_link;
		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);
		1969	# we need this sleep as the login has a concurrent enter_exit running
		1970	# and this sleep increases chances of the player not ending up in scorn
		1971	Coro::Timer::sleep 1;
		1972	$pl->ob->leave_link;
		1973	})->prio (2);
		1974	}
		1975	},
		1976	);
		1977
1399	=item $player_object->goto_map ($map, $x, $y)	1978	=item $player_object->goto ($path, $x, $y)
1400		1979
1401	=cut	1980	=cut
1402		1981
1403	sub cf::object::player::goto_map {	1982	sub cf::object::player::goto {
1404	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y) = @_;
1405		1984
1406	$self->enter_link;	1985	$self->enter_link;
1407		1986
1408	(Coro::async {	1987	(async {
1409	$path = new cf::path $path;	1988	my $map = eval {
1410
1411	my $map = cf::map::find_map $path->as_string;	1989	my $map = cf::map::find $path;
1412	$map = $map->customise_for ($self) if $map;	1990	$map = $map->customise_for ($self) if $map;
1413
1414	warn "entering ", $map->path, " at ($x, $y)\n"
1415	if $map;	1991	$map
		1992	} or
		1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1416		1994
1417	$self->leave_link ($map, $x, $y);	1995	$self->leave_link ($map, $x, $y);
1418	})->prio (1);	1996	})->prio (1);
1419	}	1997	}
1420		1998
…		…
1424		2002
1425	sub parse_random_map_params {	2003	sub parse_random_map_params {
1426	my ($spec) = @_;	2004	my ($spec) = @_;
1427		2005
1428	my $rmp = { # defaults	2006	my $rmp = { # defaults
1429	xsize => 10,	2007	xsize => (cf::rndm 15, 40),
1430	ysize => 10,	2008	ysize => (cf::rndm 15, 40),
		2009	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2010	#layout => string,
1431	};	2011	};
1432		2012
1433	for (split /\n/, $spec) {	2013	for (split /\n/, $spec) {
1434	my ($k, $v) = split /\s+/, $_, 2;	2014	my ($k, $v) = split /\s+/, $_, 2;
1435		2015
…		…
1439	$rmp	2019	$rmp
1440	}	2020	}
1441		2021
1442	sub prepare_random_map {	2022	sub prepare_random_map {
1443	my ($exit) = @_;	2023	my ($exit) = @_;
		2024
		2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
1444		2026
1445	# all this does is basically replace the /! path by	2027	# all this does is basically replace the /! path by
1446	# a new random map path (?random/...) with a seed	2028	# a new random map path (?random/...) with a seed
1447	# that depends on the exit object	2029	# that depends on the exit object
1448		2030
1449	my $rmp = parse_random_map_params $exit->msg;	2031	my $rmp = parse_random_map_params $exit->msg;
1450		2032
1451	if ($exit->map) {	2033	if ($exit->map) {
1452	$rmp->{region} = $exit->map->region_name;	2034	$rmp->{region} = $exit->region->name;
1453	$rmp->{origin_map} = $exit->map->path;	2035	$rmp->{origin_map} = $exit->map->path;
1454	$rmp->{origin_x} = $exit->x;	2036	$rmp->{origin_x} = $exit->x;
1455	$rmp->{origin_y} = $exit->y;	2037	$rmp->{origin_y} = $exit->y;
1456	}	2038	}
1457		2039
1458	$rmp->{random_seed} ||= $exit->random_seed;	2040	$rmp->{random_seed} ||= $exit->random_seed;
1459		2041
1460	my $data = cf::to_json $rmp;	2042	my $data = cf::to_json $rmp;
1461	my $md5 = Digest::MD5::md5_hex $data;	2043	my $md5 = Digest::MD5::md5_hex $data;
		2044	my $meta = "$RANDOMDIR/$md5.meta";
1462		2045
1463	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) {
1464	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;
1465		2050
1466	$exit->slaying ("?random/$md5");	2051	$exit->slaying ("?random/$md5");
1467	$exit->msg (undef);	2052	$exit->msg (undef);
1468	}	2053	}
1469	}	2054	}
…		…
1471	sub cf::object::player::enter_exit {	2056	sub cf::object::player::enter_exit {
1472	my ($self, $exit) = @_;	2057	my ($self, $exit) = @_;
1473		2058
1474	return unless $self->type == cf::PLAYER;	2059	return unless $self->type == cf::PLAYER;
1475		2060
		2061	if ($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
1476	$self->enter_link;	2072	$self->enter_link;
1477		2073
1478	(Coro::async {	2074	(async {
		2075	$self->deactivate_recursive; # just to be sure
1479	unless (eval {	2076	unless (eval {
1480		2077	$self->goto ($slaying, $hp, $sp);
1481	prepare_random_map $exit
1482	if $exit->slaying eq "/!";
1483
1484	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1485	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1486		2078
1487	1;	2079	1;
1488	}) {	2080	}) {
1489	$self->message ("Something went wrong deep within the crossfire server. "	2081	$self->message ("Something went wrong deep within the crossfire server. "
1490	. "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. "
1491	. "Please report this to the dungeon master",	2083	. "Please report this to the dungeon master!",
1492	cf::NDI_UNIQUE | cf::NDI_RED);	2084	cf::NDI_UNIQUE | cf::NDI_RED);
1493		2085
1494	warn "ERROR in enter_exit: $@";	2086	warn "ERROR in enter_exit: $@";
1495	$self->leave_link;	2087	$self->leave_link;
1496	}	2088	}
1497	})->prio (1);	2089	})->prio (1);
…		…
1510		2102
1511	sub cf::client::send_drawinfo {	2103	sub cf::client::send_drawinfo {
1512	my ($self, $text, $flags) = @_;	2104	my ($self, $text, $flags) = @_;
1513		2105
1514	utf8::encode $text;	2106	utf8::encode $text;
1515	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1516	}	2108	}
1517		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	}
1518		2122
1519	=item $success = $client->query ($flags, "text", \&cb)	2123	=item $success = $client->query ($flags, "text", \&cb)
1520		2124
1521	Queues a query to the client, calling the given callback with	2125	Queues a query to the client, calling the given callback with
1522	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>,
…		…
1547	on_reply => sub {	2151	on_reply => sub {
1548	my ($ns, $msg) = @_;	2152	my ($ns, $msg) = @_;
1549		2153
1550	# this weird shuffling is so that direct followup queries	2154	# this weird shuffling is so that direct followup queries
1551	# get handled first	2155	# get handled first
1552	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
1553		2158
1554	(shift @$queue)->[1]->($msg);	2159	(shift @$queue)->[1]->($msg);
		2160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1555		2161
1556	push @{ $ns->{query_queue} }, @$queue;	2162	push @{ $ns->{query_queue} }, @$queue;
1557		2163
1558	if (@{ $ns->{query_queue} } == @$queue) {	2164	if (@{ $ns->{query_queue} } == @$queue) {
1559	if (@$queue) {	2165	if (@$queue) {
…		…
1563	}	2169	}
1564	}	2170	}
1565	},	2171	},
1566	);	2172	);
1567		2173
1568	=item $client->coro (\&cb)	2174	=item $client->async (\&cb)
1569		2175
1570	Create a new coroutine, running the specified callback. The coroutine will	2176	Create a new coroutine, running the specified callback. The coroutine will
1571	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,
1572	or loss of connection).	2178	or loss of connection).
1573		2179
1574	=cut	2180	=cut
1575		2181
1576	sub cf::client::coro {	2182	sub cf::client::async {
1577	my ($self, $cb) = @_;	2183	my ($self, $cb) = @_;
1578		2184
1579	my $coro; $coro = async {	2185	my $coro = &Coro::async ($cb);
1580	eval {
1581	$cb->();
1582	};
1583	warn $@ if $@;
1584	};
1585		2186
1586	$coro->on_destroy (sub {	2187	$coro->on_destroy (sub {
1587	delete $self->{_coro}{$coro+0};	2188	delete $self->{_coro}{$coro+0};
1588	});	2189	});
1589		2190
…		…
1622		2223
1623	# here we export the classes and methods available to script code	2224	# here we export the classes and methods available to script code
1624		2225
1625	=pod	2226	=pod
1626		2227
1627	The following fucntions and emthods are available within a safe environment:	2228	The following functions and methods are available within a safe environment:
1628		2229
1629	cf::object contr pay_amount pay_player map	2230	cf::object contr pay_amount pay_player map
1630	cf::object::player player	2231	cf::object::player player
1631	cf::player peaceful	2232	cf::player peaceful
1632	cf::map trigger	2233	cf::map trigger
…		…
1717	#############################################################################	2318	#############################################################################
1718		2319
1719	=head2 EXTENSION DATABASE SUPPORT	2320	=head2 EXTENSION DATABASE SUPPORT
1720		2321
1721	Crossfire maintains a very simple database for extension use. It can	2322	Crossfire maintains a very simple database for extension use. It can
1722	currently store anything that can be serialised using Storable, which	2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1723	excludes objects.	2324	convert to/from binary).
1724		2325
1725	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
1726	using it, it should be unique.	2327	using it, it should be unique.
1727		2328
1728	=over 4	2329	=over 4
1729		2330
1730	=item $hashref = cf::db_get $family
1731
1732	Return a hashref for use by the extension C<$family>, which can be
1733	modified. After modifications, you have to call C<cf::db_dirty> or
1734	C<cf::db_sync>.
1735
1736	=item $value = cf::db_get $family => $key	2331	=item $value = cf::db_get $family => $key
1737		2332
1738	Returns a single value from the database	2333	Returns a single value from the database.
1739
1740	=item cf::db_put $family => $hashref
1741
1742	Stores the given family hashref into the database. Updates are delayed, if
1743	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1744		2334
1745	=item cf::db_put $family => $key => $value	2335	=item cf::db_put $family => $key => $value
1746		2336
1747	Stores the given C<$value> in the family hash. Updates are delayed, if you	2337	Stores the given C<$value> in the family.
1748	want the data to be synced to disk immediately, use C<cf::db_sync>.
1749
1750	=item cf::db_dirty
1751
1752	Marks the database as dirty, to be updated at a later time.
1753
1754	=item cf::db_sync
1755
1756	Immediately write the database to disk I<if it is dirty>.
1757		2338
1758	=cut	2339	=cut
1759		2340
1760	our $DB;	2341	our $DB;
1761		2342
1762	{	2343	sub db_init {
1763	my $path = cf::localdir . "/database.pst";	2344	unless ($DB) {
		2345	$DB = BDB::db_create $DB_ENV;
1764		2346
1765	sub db_load() {	2347	cf::sync_job {
1766	warn "loading database $path\n";#d# remove later	2348	eval {
1767	$DB = stat $path ? Storable::retrieve $path : { };	2349	$DB->set_flags (BDB::CHKSUM);
1768	}
1769		2350
1770	my $pid;	2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1771		2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1772	sub db_save() {	2353	cf::cleanup "db_open(db): $!" if $!;
1773	warn "saving database $path\n";#d# remove later	2354	};
1774	waitpid $pid, 0 if $pid;	2355	cf::cleanup "db_open(db): $@" if $@;
1775	if (0 == ($pid = fork)) {
1776	$DB->{_meta}{version} = 1;
1777	Storable::nstore $DB, "$path~";
1778	rename "$path~", $path;
1779	cf::_exit 0 if defined $pid;
1780	}	2356	};
1781	}
1782
1783	my $dirty;
1784
1785	sub db_sync() {
1786	db_save if $dirty;
1787	undef $dirty;
1788	}
1789
1790	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1791	db_sync;
1792	});	2357	}
		2358	}
1793		2359
1794	sub db_dirty() {
1795	$dirty = 1;
1796	$idle->start;
1797	}
1798
1799	sub db_get($;$) {	2360	sub db_get($$) {
1800	@_ >= 2	2361	my $key = "$_[0]/$_[1]";
1801	? $DB->{$_[0]}{$_[1]}
1802	: ($DB->{$_[0]} ||= { })
1803	}
1804		2362
		2363	cf::sync_job {
		2364	BDB::db_get $DB, undef, $key, my $data;
		2365
		2366	$! ? ()
		2367	: $data
		2368	}
		2369	}
		2370
1805	sub db_put($$;$) {	2371	sub db_put($$$) {
1806	if (@_ >= 3) {	2372	BDB::dbreq_pri 4;
1807	$DB->{$_[0]}{$_[1]} = $_[2];	2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1808	} else {	2374	}
1809	$DB->{$_[0]} = $_[1];
1810	}
1811	db_dirty;
1812	}
1813		2375
1814	cf::global->attach (	2376	=item cf::cache $id => [$paths...], $processversion => $process
1815	prio => 10000,	2377
1816	on_cleanup => sub {	2378	Generic caching function that returns the value of the resource $id,
1817	db_sync;	2379	caching and regenerating as required.
		2380
		2381	This function can block.
		2382
		2383	=cut
		2384
		2385	sub cache {
		2386	my ($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 "$src->[$_]: $!";
1818	},	2408	}
1819	);	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"
1820	}	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
1821		2491
1822	#############################################################################	2492	#############################################################################
1823	# 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	}
1824		2581
1825	sub cfg_load {	2582	sub cfg_load {
1826	open my $fh, "<:utf8", cf::confdir . "/config"	2583	open my $fh, "<:utf8", "$CONFDIR/config"
1827	or return;	2584	or return;
1828		2585
1829	local $/;	2586	local $/;
1830	*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	}
1831	}	2601	}
1832		2602
1833	sub main {	2603	sub main {
1834	# we must not ever block the main coroutine	2604	# we must not ever block the main coroutine
1835	local $Coro::idle = sub {	2605	local $Coro::idle = sub {
1836	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1837	(Coro::unblock_sub {	2607	(async {
1838	Event::one_event;	2608	Event::one_event;
1839	})->();	2609	})->prio (Coro::PRIO_MAX);
1840	};	2610	};
1841		2611
1842	cfg_load;	2612	cfg_load;
1843	db_load;	2613	db_init;
1844	load_extensions;	2614	load_extensions;
		2615
		2616	$TICK_WATCHER->start;
1845	Event::loop;	2617	Event::loop;
1846	}	2618	}
1847		2619
1848	#############################################################################	2620	#############################################################################
1849	# initialisation	2621	# initialisation and cleanup
1850		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
1851	sub reload() {	2678	sub do_reload_perl() {
1852	# can/must only be called in main	2679	# can/must only be called in main
1853	if ($Coro::current != $Coro::main) {	2680	if ($Coro::current != $Coro::main) {
1854	warn "can only reload from main coroutine\n";	2681	warn "can only reload from main coroutine";
1855	return;	2682	return;
1856	}	2683	}
1857		2684
1858	warn "reloading...";	2685	warn "reloading...";
1859		2686
1860	local $FREEZE = 1;	2687	warn "entering sync_job";
		2688
		2689	cf::sync_job {
		2690	cf::write_runtime; # external watchdog should not bark
1861	cf::emergency_save;	2691	cf::emergency_save;
		2692	cf::write_runtime; # external watchdog should not bark
1862		2693
1863	eval {	2694	warn "syncing database to disk";
		2695	BDB::db_env_txn_checkpoint $DB_ENV;
		2696
1864	# 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
1865		2698
1866	# cancel all watchers	2699	warn "cancelling all WF_AUTOCANCEL watchers";
1867	for (Event::all_watchers) {	2700	for (Event::all_watchers) {
1868	$_->cancel if $_->data & WF_AUTOCANCEL;	2701	$_->cancel if $_->data & WF_AUTOCANCEL;
1869	}	2702	}
1870		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
1871	# cancel all extension coros	2715	warn "cancelling all extension coros";
1872	$_->cancel for values %EXT_CORO;	2716	$_->cancel for values %EXT_CORO;
1873	%EXT_CORO = ();	2717	%EXT_CORO = ();
1874		2718
1875	# unload all extensions	2719	warn "removing commands";
1876	for (@exts) {	2720	%COMMAND = ();
		2721
		2722	warn "removing ext commands";
		2723	%EXTCMD = ();
		2724
		2725	warn "unloading/nuking all extensions";
		2726	for my $pkg (@EXTS) {
1877	warn "unloading <$_>";	2727	warn "... unloading $pkg";
1878	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: $@";
1879	}	2734	}
1880		2735
		2736	warn "... nuking $pkg";
		2737	Symbol::delete_package $pkg;
		2738	}
		2739
1881	# unload all modules loaded from $LIBDIR	2740	warn "unloading all perl modules loaded from $LIBDIR";
1882	while (my ($k, $v) = each %INC) {	2741	while (my ($k, $v) = each %INC) {
1883	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1884		2743
1885	warn "removing <$k>";	2744	warn "... unloading $k";
1886	delete $INC{$k};	2745	delete $INC{$k};
1887		2746
1888	$k =~ s/\.pm$//;	2747	$k =~ s/\.pm$//;
1889	$k =~ s/\//::/g;	2748	$k =~ s/\//::/g;
1890		2749
…		…
1893	}	2752	}
1894		2753
1895	Symbol::delete_package $k;	2754	Symbol::delete_package $k;
1896	}	2755	}
1897		2756
1898	# sync database to disk
1899	cf::db_sync;
1900	IO::AIO::flush;
1901
1902	# get rid of safe::, as good as possible	2757	warn "getting rid of safe::, as good as possible";
1903	Symbol::delete_package "safe::$_"	2758	Symbol::delete_package "safe::$_"
1904	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);
1905		2760
1906	# remove register_script_function callbacks
1907	# TODO
1908
1909	# unload cf.pm "a bit"	2761	warn "unloading cf.pm \"a bit\"";
1910	delete $INC{"cf.pm"};	2762	delete $INC{"cf.pm"};
		2763	delete $INC{"cf/pod.pm"};
1911		2764
1912	# don't, removes xs symbols, too,	2765	# don't, removes xs symbols, too,
1913	# and global variables created in xs	2766	# and global variables created in xs
1914	#Symbol::delete_package __PACKAGE__;	2767	#Symbol::delete_package __PACKAGE__;
1915		2768
1916	# reload cf.pm	2769	warn "unload completed, starting to reload now";
		2770
1917	warn "reloading cf.pm";	2771	warn "reloading cf.pm";
1918	require cf;	2772	require cf;
1919	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1920		2774
1921	# load config and database again	2775	warn "loading config and database again";
1922	cf::cfg_load;	2776	cf::cfg_load;
1923	cf::db_load;
1924		2777
1925	# load extensions
1926	warn "load extensions";	2778	warn "loading extensions";
1927	cf::load_extensions;	2779	cf::load_extensions;
1928		2780
1929	# reattach attachments to objects	2781	warn "reattaching attachments to objects/players";
1930	warn "reattach";	2782	_global_reattach; # objects, sockets
1931	_global_reattach;	2783	warn "reattaching attachments to maps";
1932	};	2784	reattach $_ for values %MAP;
		2785	warn "reattaching attachments to players";
		2786	reattach $_ for values %PLAYER;
1933		2787
1934	if ($@) {	2788	warn "leaving sync_job";
		2789
		2790	1
		2791	} or do {
1935	warn $@;	2792	warn $@;
1936	warn "error while reloading, exiting.";	2793	warn "error while reloading, exiting.";
1937	exit 1;	2794	exit 1;
1938	}	2795	};
1939		2796
1940	warn "reloaded successfully";	2797	warn "reloaded";
1941	};	2798	};
1942		2799
1943	#############################################################################	2800	our $RELOAD_WATCHER; # used only during reload
1944		2801
1945	unless ($LINK_MAP) {	2802	sub reload_perl() {
1946	$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.
1947		2805
1948	$LINK_MAP->width (41);	2806	$RELOAD_WATCHER ||= Event->timer (
1949	$LINK_MAP->height (41);	2807	reentrant => 0,
1950	$LINK_MAP->alloc;
1951	$LINK_MAP->path ("{link}");
1952	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1953	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1954
1955	# dirty hack because... archetypes are not yet loaded
1956	Event->timer (
1957	after => 2,	2808	after => 0,
		2809	data => WF_AUTOCANCEL,
1958	cb => sub {	2810	cb => sub {
1959	$_[0]->w->cancel;	2811	do_reload_perl;
1960		2812	undef $RELOAD_WATCHER;
1961	# provide some exits "home"
1962	my $exit = cf::object::new "exit";
1963
1964	$exit->slaying ($EMERGENCY_POSITION->[0]);
1965	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1966	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1967
1968	$LINK_MAP->insert ($exit->clone, 19, 19);
1969	$LINK_MAP->insert ($exit->clone, 19, 20);
1970	$LINK_MAP->insert ($exit->clone, 19, 21);
1971	$LINK_MAP->insert ($exit->clone, 20, 19);
1972	$LINK_MAP->insert ($exit->clone, 20, 21);
1973	$LINK_MAP->insert ($exit->clone, 21, 19);
1974	$LINK_MAP->insert ($exit->clone, 21, 20);
1975	$LINK_MAP->insert ($exit->clone, 21, 21);
1976
1977	$exit->destroy;
1978	});	2813	},
1979		2814	);
1980	$LINK_MAP->{deny_save} = 1;
1981	$LINK_MAP->{deny_reset} = 1;
1982
1983	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1984	}	2815	}
1985
1986	register "<global>", __PACKAGE__;
1987		2816
1988	register_command "reload" => sub {	2817	register_command "reload" => sub {
1989	my ($who, $arg) = @_;	2818	my ($who, $arg) = @_;
1990		2819
1991	if ($who->flag (FLAG_WIZ)) {	2820	if ($who->flag (FLAG_WIZ)) {
1992	$who->message ("start of reload.");
1993	reload;
1994	$who->message ("end of reload.");	2821	$who->message ("reloading server.");
		2822	async { reload_perl };
1995	}	2823	}
1996	};	2824	};
1997		2825
1998	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	}
1999		2850
2000	$TICK_WATCHER = Event->timer (	2851	$TICK_WATCHER = Event->timer (
2001	reentrant => 0,	2852	reentrant => 0,
		2853	parked => 1,
2002	prio => 0,	2854	prio => 0,
2003	at => $NEXT_TICK || $TICK,	2855	at => $NEXT_TICK || $TICK,
2004	data => WF_AUTOCANCEL,	2856	data => WF_AUTOCANCEL,
2005	cb => sub {	2857	cb => sub {
2006	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
2007	cf::server_tick; # one server iteration	2866	cf::server_tick; # one server iteration
		2867
2008	$RUNTIME += $TICK;	2868	$RUNTIME += $TICK;
2009	}
2010
2011	$NEXT_TICK += $TICK;	2869	$NEXT_TICK += $TICK;
2012		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
2013	# 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
2014	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2015		2893
2016	$TICK_WATCHER->at ($NEXT_TICK);	2894	$TICK_WATCHER->at ($NEXT_TICK);
2017	$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
2018	},	2903	},
2019	);	2904	);
2020		2905
		2906	{
2021	IO::AIO::max_poll_time $TICK * 0.2;	2907	BDB::max_poll_time $TICK * 0.1;
2022		2908	$BDB_POLL_WATCHER = Event->io (
2023	Event->io (	2909	reentrant => 0,
2024	fd => IO::AIO::poll_fileno,	2910	fd => BDB::poll_fileno,
2025	poll => 'r',	2911	poll => 'r',
2026	prio => 5,	2912	prio => 0,
2027	data => WF_AUTOCANCEL,
2028	cb => \&IO::AIO::poll_cb,
2029	);
2030
2031	Event->timer (
2032	data => WF_AUTOCANCEL,	2913	data => WF_AUTOCANCEL,
2033	after => 0,	2914	cb => \&BDB::poll_cb,
2034	interval => 10,	2915	);
2035	cb => sub {	2916	BDB::min_parallel 8;
2036	(Coro::unblock_sub {	2917
2037	write_runtime	2918	BDB::set_sync_prepare {
2038	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 $@;
2039	})->();	2952	};
2040	},	2953	}
2041	);	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 }
2042		3013
2043	1	3014	1
2044		3015

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