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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
77		115
78	#############################################################################	116	#############################################################################
79		117
80	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
81		119
…		…
88	=item $cf::RUNTIME	126	=item $cf::RUNTIME
89		127
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	129	every server tick.
92		130
93	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		134
95	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
97		139
98	=item $cf::NOW	140	=item $cf::NOW
99		141
100	The time of the last (current) server tick.	142	The time of the last (current) server tick.
101		143
102	=item $cf::TICK	144	=item $cf::TICK
103		145
104	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
105		157
106	=item %cf::CFG	158	=item %cf::CFG
107		159
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
110		168
111	=back	169	=back
112		170
113	=cut	171	=cut
114		172
115	BEGIN {	173	BEGIN {
116	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	175	my $msg = join "", @_;
118	utf8::encode $msg;
119		176
120	$msg .= "\n"	177	$msg .= "\n"
121	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
122		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
124	};	184	};
125	}	185	}
126		186
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
146		206
147	$Event::DIED = sub {	207	$Event::DIED = sub {
148	warn "error in event callback: @_";	208	warn "error in event callback: @_";
149	};	209	};
150		210
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
156		212
157	=over 4	213	=over 4
158		214
159	=cut	215	=item dumpval $ref
160		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
162		239
163	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
164		241
165	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
166		243
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
175		245
176	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
177		247
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184
185	=item my $guard = cf::guard { BLOCK }
186
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206
207	=item cf::lock_wait $string	248	=item cf::lock_wait $string
208		249
209	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
210		251
211	=item my $lock = cf::lock_acquire $string	252	=item my $lock = cf::lock_acquire $string
212		253
213	Wait until the given lock is available and then acquires it and returns	254	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	256	for example when the coroutine gets canceled), the lock is automatically
216	returned.	257	returned.
217		258
218	Lock names should begin with a unique identifier (for example, find_map	259	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	260	uses map_find and cf::map::load uses map_load).
		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
220		265
221	=cut	266	=cut
222		267
223	our %LOCK;	268	our %LOCK;
224		269
…		…
238	# wait, to be sure we are not locked	283	# wait, to be sure we are not locked
239	lock_wait $key;	284	lock_wait $key;
240		285
241	$LOCK{$key} = [];	286	$LOCK{$key} = [];
242		287
243	cf::guard {	288	Coro::guard {
244	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
246	}	291	}
247	}	292	}
248		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
		300	sub freeze_mainloop {
		301	return unless $TICK_WATCHER->is_active;
		302
		303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
		306	$TICK_WATCHER->stop;
		307	$guard
		308	}
		309
249	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
250		311
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	312	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
253		315
254	=cut	316	=cut
255		317
256	sub async(&) {	318	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		319
265	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
266		321
267	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
268	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
277		332
278	sub sync_job(&) {	333	sub sync_job(&) {
279	my ($job) = @_;	334	my ($job) = @_;
280		335
281	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
282	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
284		341
285	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	343	# (but this is cancel-safe)
287	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
288		345
289	my $busy = 1;	346	my $busy = 1;
290	my @res;	347	my @res;
291		348
292	(Coro::async {	349	(async {
293	@res = eval { $job->() };	350	@res = eval { $job->() };
294	warn $@ if $@;	351	warn $@ if $@;
295	undef $busy;	352	undef $busy;
296	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
297		354
298	while ($busy) {	355	while ($busy) {
299	Coro::cede_notself;	356	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	357	}
		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, "long sync job\n"
		362	if $time > $TICK * 0.5;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
302		365
303	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
304	} else {	367	} else {
305	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
306		369
307	$job->()	370	$job->()
308	}	371	}
309	}	372	}
310		373
311	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
312		375
313	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
315		378
316	=cut	379	=cut
317		380
318	sub coro(&) {	381	sub async_ext(&) {
319	my $cb = shift;	382	my $cb = shift;
320		383
321	my $coro = &cf::async ($cb);	384	my $coro = &Coro::async ($cb);
322		385
323	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
325	});	388	});
326	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
327		390
328	$coro	391	$coro
329	}	392	}
330		393
331	sub write_runtime {	394	sub write_runtime {
332	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
333		405
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
335	or return;	407	or return;
336		408
		409	my $value = $cf::RUNTIME + 90 + 10;
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;	414	and return;
340		415
		416	# always fsync - this file is important
341	aio_fsync $fh	417	aio_fsync $fh
342	and return;	418	and return;
343		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
344	close $fh	423	close $fh
345	or return;	424	or return;
346		425
347	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
348	and return;	427	and return;
349		428
		429	warn "runtime file written.\n";#d#
		430
350	1	431	1
351	}	432	}
352		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
353	=back	445	=back
354		446
355	=cut	447	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		448
477	#############################################################################	449	#############################################################################
478		450
479	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
480		452
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	579	our @CB_MAP = ();
608		580
609	my %attachment;	581	my %attachment;
610		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
611	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
613		591
614	use sort 'stable';	592	use sort 'stable';
615		593
…		…
786	# object support	764	# object support
787		765
788	sub reattach {	766	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		771
792	my $registry = $obj->registry;	772	my $registry = $obj->registry;
793		773
794	@$registry = ();	774	@$registry = ();
795		775
…		…
842	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
843		823
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	828	close $fh;
849		829
850	if (@$objs) {	830	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	836	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
858	}	838	}
859	} else {	839	} else {
860	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
927	=cut	907	=cut
928		908
929	sub register_extcmd {	909	sub register_extcmd {
930	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
931		911
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
936	}	913	}
937		914
938	cf::player->attach (	915	cf::player->attach (
939	on_command => sub {	916	on_command => sub {
940	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
953		930
954	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
955		932
956	if (ref $msg) {	933	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	937	}
961	}	938	}
962	} else {	939	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		942
966	cf::override;	943	cf::override;
967	},	944	},
968	);	945	);
969		946
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	947	sub load_extension {
977	my ($path) = @_;	948	my ($path) = @_;
978		949
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
980	my $base = $1;	951	my $base = $1;
981	my $pkg = $1;	952	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
984		955
985	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
986		957
987	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
988	or die "$path: $!";	959	or die "$path: $!";
989		960
990	my $source =	961	my $source =
991	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
994	. "\n};\n1";	965	. "\n};\n1";
995		966
996	eval $source	967	unless (eval $source) {
997	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
998	: "extension disabled.\n";	969	: "extension disabled.\n";
999		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1000	push @exts, $pkg;	971	warn $@;
1001	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
1002		973	exit 1;
1003	# no strict 'refs';	974	}
1004	# @{"$pkg\::ISA"} = ext::;	975	die $@;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	976	}
1019		977
1020	# remove commands	978	push @EXTS, $pkg;
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}	979	}
1045		980
1046	sub load_extensions {	981	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;	983	next unless -r $ext;
…		…
1052	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1053	}	988	}
1054	}	989	}
1055		990
1056	#############################################################################	991	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093		992
1094	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1095		994
1096	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1097		996
		997	=cut
		998
		999	package cf::player;
		1000
		1001	use Coro::AIO;
		1002
1098	=head3 cf::player	1003	=head3 cf::player
1099		1004
1100	=over 4	1005	=over 4
1101		1006
1102	=item cf::player::exists $login	1007	=item cf::player::find $login
1103		1008
1104	Returns true when the given account exists.	1009	Returns the given player object, loading it if necessary (might block).
1105		1010
1106	=cut	1011	=cut
1107		1012
1108	sub cf::player::exists($) {	1013	sub playerdir($) {
1109	cf::player::find $_[0]	1014	"$PLAYERDIR/"
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1016	}
1112		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
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1114		1190
1115	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1116		1192
1117	=cut	1193	=cut
1118		1194
1119	sub cf::player::ext_reply($$$%) {	1195	sub ext_reply($$%) {
1120	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1121		1197
1122	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1123		1199
1124	$self->send ("ext " . to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
		1201	}
		1202
		1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		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
1125	}	1242	}
1126		1243
1127	=back	1244	=back
1128
1129		1245
1130	=head3 cf::map	1246	=head3 cf::map
1131		1247
1132	=over 4	1248	=over 4
1133		1249
…		…
1136	package cf::map;	1252	package cf::map;
1137		1253
1138	use Fcntl;	1254	use Fcntl;
1139	use Coro::AIO;	1255	use Coro::AIO;
1140		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1141	our $MAX_RESET = 7200;	1261	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1262	our $DEFAULT_RESET = 3000;
1143		1263
1144	sub generate_random_map {	1264	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1267	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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"
1161	}	1409	}
1162		1410
1163	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1164	# all maps in C++...	1412	# all maps in C++...
1165	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1167		1415
1168	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1170	}	1418	}
1171		1419
		1420	sub unlink_save {
		1421	my ($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
1172	sub try_load_header($) {	1428	sub load_header_from($) {
1173	my ($path) = @_;	1429	my ($self, $path) = @_;
1174		1430
1175	utf8::encode $path;	1431	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1177	or return;	1436	or return;
1178		1437
1179	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
1180	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1181		1484
1182	$map->load_header ($path)	1485	$self->default_region (cf::region::find_by_path $self->{path})
1183	or return;	1486	unless $self->default_region;
1184		1487
1185	$map->{load_path} = $path;	1488	1
1186
1187	$map
1188	}	1489	}
1189		1490
1190	sub find_map;	1491	sub find;
1191	sub find_map {	1492	sub find {
1192	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1193		1494
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1496
1199	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1200		1498
1201	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1203		1501	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	$map->last_access ((delete $map->{last_access})
1209	|| $cf::RUNTIME); #d#
1210	# safety
1211	$map->{instantiate_time} = $cf::RUNTIME
1212	if $map->{instantiate_time} > $cf::RUNTIME;
1213	} else {
1214	if (my $rmp = $path->random_map_params) {
1215	$map = generate_random_map $key, $rmp;
1216	} else {
1217	$map = try_load_header $path->load_path;
1218	}
1219
1220	$map or return;	1502	or return;
1221		1503
1222	$map->{load_original} = 1;
1223	$map->{instantiate_time} = $cf::RUNTIME;
1224	$map->last_access ($cf::RUNTIME);
1225	$map->instantiate;
1226
1227	# per-player maps become, after loading, normal maps
1228	$map->per_player (0) if $path->{user_rel};
1229	}
1230
1231	$map->path ($key);
1232	$map->{path} = $path;
1233	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1234		1505
1235	if ($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;
1236	$map->reset;	1512	$map->reset;
1237	undef $guard;	1513	undef $guard;
1238	$map = find_map $path	1514	return find $path;
1239	or return;
1240	}	1515	}
1241		1516
1242	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1243	}	1518	}
1244	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1245		1523
1246	sub load {	1524	sub load {
1247	my ($self) = @_;	1525	my ($self) = @_;
1248		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1249	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1250	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1251		1533
1252	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1253		1535
1254	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1255		1537
1256	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1257	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1258	or return;	1544	or return;
1259		1545
1260	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261	if delete $self->{load_original};	1547	if delete $self->{load_original};
1262		1548
1263	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1264	utf8::encode $uniq;	1550	utf8::encode $uniq;
1265	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1266	$self->clear_unique_items;	1552	$self->clear_unique_items;
1267	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1268	}	1554	}
1269	}	1555	}
1270		1556
		1557	Coro::cede;
1271	# now do the right thing for maps	1558	# now do the right thing for maps
1272	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1273
1274	if ($self->{path}->is_style_map) {
1275	$self->{deny_save} = 1;
1276	$self->{deny_reset} = 1;
1277	} else {
1278	$self->fix_auto_apply;
1279	$self->decay_objects;
1280	$self->update_buttons;
1281	$self->set_darkness_map;
1282	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1283	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;
1284	$self->activate;	1571	$self->activate;
1285	}	1572	}
1286		1573
1287	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
1288	}	1575	}
1289		1576
1290	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	$neigh->load;
		1610	}
		1611	}
		1612
		1613	sub find_sync {
1291	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1292		1615
1293	#warn "load_map_sync<$path, $origin>\n";#d#	1616	cf::sync_job { find $path, $origin }
		1617	}
1294		1618
1295	cf::sync_job {	1619	sub do_load_sync {
1296	my $map = cf::map::find_map $path, $origin	1620	my ($map) = @_;
1297	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;
1298	$map->load;	1643	$map->load;
1299	$map	1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
1300	}	1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
1301	}	1653	}
1302		1654
1303	sub save {	1655	sub save {
1304	my ($self) = @_;	1656	my ($self) = @_;
1305		1657
		1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1659
1306	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1307		1661
1308	return unless $self->dirty;	1662	return unless $self->dirty;
1309		1663
1310	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1311	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1312		1666
1313	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1314		1668
1315	return if $self->{deny_save};	1669	return if $self->{deny_save};
1316		1670
1317	local $self->{last_access} = $self->last_access;#d#	1671	local $self->{last_access} = $self->last_access;#d#
1318		1672
		1673	cf::async {
		1674	$_->contr->save for $self->players;
		1675	};
		1676
1319	if ($uniq) {	1677	if ($uniq) {
1320	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1322	} else {	1680	} else {
1323	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324	}	1682	}
1325	}	1683	}
1326		1684
1327	sub swap_out {	1685	sub swap_out {
1328	my ($self) = @_;	1686	my ($self) = @_;
1329		1687
1330	# save first because save cedes	1688	# save first because save cedes
1331	$self->save;	1689	$self->save;
		1690
		1691	my $lock = cf::lock_acquire "map_data:" . $self->path;
1332		1692
1333	return if $self->players;	1693	return if $self->players;
1334	return if $self->in_memory != cf::MAP_IN_MEMORY;	1694	return if $self->in_memory != cf::MAP_IN_MEMORY;
1335	return if $self->{deny_save};	1695	return if $self->{deny_save};
1336		1696
…		…
1340		1700
1341	sub reset_at {	1701	sub reset_at {
1342	my ($self) = @_;	1702	my ($self) = @_;
1343		1703
1344	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1345	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1346	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1347		1707
1348	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350		1710
…		…
1355	my ($self) = @_;	1715	my ($self) = @_;
1356		1716
1357	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1358	}	1718	}
1359		1719
1360	sub unlink_save {
1361	my ($self) = @_;
1362
1363	utf8::encode (my $save = $self->{path}->save_path);
1364	aioreq_pri 3; IO::AIO::aio_unlink $save;
1365	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366	}
1367
1368	sub rename {
1369	my ($self, $new_path) = @_;
1370
1371	$self->unlink_save;
1372
1373	delete $cf::MAP{$self->path};
1374	$self->{path} = new cf::path $new_path;
1375	$self->path ($self->{path}->as_string);
1376	$cf::MAP{$self->path} = $self;
1377
1378	$self->save;
1379	}
1380
1381	sub reset {	1720	sub reset {
1382	my ($self) = @_;	1721	my ($self) = @_;
1383		1722
		1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1724
1384	return if $self->players;	1725	return if $self->players;
1385	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1386		1727
1387	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1388		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
1389	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1390		1743
1391	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1392		1745
1393	$self->unlink_save;	1746	$self->unlink_save;
1394	$self->destroy;	1747	$self->destroy;
…		…
1397	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1398		1751
1399	sub nuke {	1752	sub nuke {
1400	my ($self) = @_;	1753	my ($self) = @_;
1401		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1402	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1403	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1404	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1405	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1406	}	1768	}
1407		1769
1408	sub customise_for {	1770	=item cf::map::unique_maps
1409	my ($map, $ob) = @_;
1410		1771
1411	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1412	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1413	}
1414		1774
1415	$map	1775	=cut
1416	}
1417		1776
1418	sub emergency_save {	1777	sub unique_maps() {
1419	local $cf::FREEZE = 1;	1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
1420		1780
1421	warn "enter emergency map save\n";	1781	my @paths;
1422		1782
1423	cf::sync_job {	1783	for (@$files) {
1424	warn "begin emergency map save\n";	1784	utf8::decode $_;
1425	$_->save for values %cf::MAP;	1785	next if /\.pst$/;
		1786	next unless /^$PATH_SEP/o;
		1787
		1788	push @paths, cf::map::normalise $_;
1426	};	1789	}
1427		1790
1428	warn "end emergency map save\n";	1791	\@paths
1429	}	1792	}
1430		1793
1431	package cf;	1794	package cf;
1432		1795
1433	=back	1796	=back
1434		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
1435		1824
1436	=head3 cf::object::player	1825	=head3 cf::object::player
1437		1826
1438	=over 4	1827	=over 4
1439		1828
…		…
1479		1868
1480	=item $player_object->enter_link	1869	=item $player_object->enter_link
1481		1870
1482	Freezes the player and moves him/her to a special map (C<{link}>).	1871	Freezes the player and moves him/her to a special map (C<{link}>).
1483		1872
1484	The player should be reaosnably safe there for short amounts of time. You	1873	The player should be reasonably safe there for short amounts of time. You
1485	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1486		1875
		1876	Will never block.
		1877
1487	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1488		1879
1489	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1490	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1491	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1492	to the emergency map position.	1883	fails, to the emergency map position.
1493		1884
1494	Might block.	1885	Might block.
1495		1886
1496	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($LINK_MAP) {
		1891	$LINK_MAP = cf::map::find "{link}"
		1892	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1893	$LINK_MAP->load;
		1894	}
		1895
		1896	$LINK_MAP
		1897	}
1497		1898
1498	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1499	my ($self) = @_;	1900	my ($self) = @_;
1500		1901
1501	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1502		1903
1503	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1504		1905
1505	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506	if $self->map;	1907	if $self->map;
1507		1908
1508	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1509	}	1910	}
1510		1911
1511	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1512	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1513		1914
1514	my $link_pos = delete $self->{_link_pos};	1915	my $link_pos = delete $self->{_link_pos};
1515		1916
1516	unless ($map) {	1917	unless ($map) {
1517	# restore original map position	1918	# restore original map position
1518	($map, $x, $y) = @{ $link_pos || [] };	1919	($map, $x, $y) = @{ $link_pos || [] };
1519	$map = cf::map::find_map $map;	1920	$map = cf::map::find $map;
1520		1921
1521	unless ($map) {	1922	unless ($map) {
1522	($map, $x, $y) = @$EMERGENCY_POSITION;	1923	($map, $x, $y) = @$EMERGENCY_POSITION;
1523	$map = cf::map::find_map $map	1924	$map = cf::map::find $map
1524	or die "FATAL: cannot load emergency map\n";	1925	or die "FATAL: cannot load emergency map\n";
1525	}	1926	}
1526	}	1927	}
1527		1928
1528	($x, $y) = (-1, -1)	1929	($x, $y) = (-1, -1)
…		…
1531	# use -1 or undef as default coordinates, not 0, 0	1932	# use -1 or undef as default coordinates, not 0, 0
1532	($x, $y) = ($map->enter_x, $map->enter_y)	1933	($x, $y) = ($map->enter_x, $map->enter_y)
1533	if $x <=0 && $y <= 0;	1934	if $x <=0 && $y <= 0;
1534		1935
1535	$map->load;	1936	$map->load;
		1937	$map->load_diag;
1536		1938
		1939	return unless $self->contr->active;
1537	$self->activate_recursive;	1940	$self->activate_recursive;
		1941
		1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1538	$self->enter_map ($map, $x, $y);	1943	$self->enter_map ($map, $x, $y);
1539	}	1944	}
1540		1945
1541	cf::player->attach (	1946	cf::player->attach (
1542	on_logout => sub {	1947	on_logout => sub {
…		…
1554		1959
1555	# try to abort aborted map switching on player login :)	1960	# try to abort aborted map switching on player login :)
1556	# should happen only on crashes	1961	# should happen only on crashes
1557	if ($pl->ob->{_link_pos}) {	1962	if ($pl->ob->{_link_pos}) {
1558	$pl->ob->enter_link;	1963	$pl->ob->enter_link;
1559	cf::async {	1964	(async {
		1965	$pl->ob->reply (undef,
		1966	"There was an internal problem at your last logout, "
		1967	. "the server will try to bring you to your intended destination in a second.",
		1968	cf::NDI_RED);
1560	# we need this sleep as the login has a concurrent enter_exit running	1969	# we need this sleep as the login has a concurrent enter_exit running
1561	# and this sleep increases chances of the player not ending up in scorn	1970	# and this sleep increases chances of the player not ending up in scorn
1562	Coro::Timer::sleep 1;	1971	Coro::Timer::sleep 1;
1563	$pl->ob->leave_link;	1972	$pl->ob->leave_link;
1564	};	1973	})->prio (2);
1565	}	1974	}
1566	},	1975	},
1567	);	1976	);
1568		1977
1569	=item $player_object->goto_map ($path, $x, $y)	1978	=item $player_object->goto ($path, $x, $y)
1570		1979
1571	=cut	1980	=cut
1572		1981
1573	sub cf::object::player::goto_map {	1982	sub cf::object::player::goto {
1574	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y) = @_;
1575		1984
1576	$self->enter_link;	1985	$self->enter_link;
1577		1986
1578	(cf::async {	1987	(async {
1579	$path = new cf::path $path;	1988	my $map = eval {
1580
1581	my $map = cf::map::find_map $path->as_string;	1989	my $map = cf::map::find $path;
1582	$map = $map->customise_for ($self) if $map;	1990	$map = $map->customise_for ($self) if $map;
1583		1991	$map
1584	# warn "entering ", $map->path, " at ($x, $y)\n"	1992	} or
1585	# if $map;
1586
1587	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1588		1994
1589	$self->leave_link ($map, $x, $y);	1995	$self->leave_link ($map, $x, $y);
1590	})->prio (1);	1996	})->prio (1);
1591	}	1997	}
1592		1998
…		…
1596		2002
1597	sub parse_random_map_params {	2003	sub parse_random_map_params {
1598	my ($spec) = @_;	2004	my ($spec) = @_;
1599		2005
1600	my $rmp = { # defaults	2006	my $rmp = { # defaults
1601	xsize => 10,	2007	xsize => (cf::rndm 15, 40),
1602	ysize => 10,	2008	ysize => (cf::rndm 15, 40),
		2009	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2010	#layout => string,
1603	};	2011	};
1604		2012
1605	for (split /\n/, $spec) {	2013	for (split /\n/, $spec) {
1606	my ($k, $v) = split /\s+/, $_, 2;	2014	my ($k, $v) = split /\s+/, $_, 2;
1607		2015
…		…
1611	$rmp	2019	$rmp
1612	}	2020	}
1613		2021
1614	sub prepare_random_map {	2022	sub prepare_random_map {
1615	my ($exit) = @_;	2023	my ($exit) = @_;
		2024
		2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
1616		2026
1617	# all this does is basically replace the /! path by	2027	# all this does is basically replace the /! path by
1618	# a new random map path (?random/...) with a seed	2028	# a new random map path (?random/...) with a seed
1619	# that depends on the exit object	2029	# that depends on the exit object
1620		2030
1621	my $rmp = parse_random_map_params $exit->msg;	2031	my $rmp = parse_random_map_params $exit->msg;
1622		2032
1623	if ($exit->map) {	2033	if ($exit->map) {
1624	$rmp->{region} = $exit->map->region_name;	2034	$rmp->{region} = $exit->region->name;
1625	$rmp->{origin_map} = $exit->map->path;	2035	$rmp->{origin_map} = $exit->map->path;
1626	$rmp->{origin_x} = $exit->x;	2036	$rmp->{origin_x} = $exit->x;
1627	$rmp->{origin_y} = $exit->y;	2037	$rmp->{origin_y} = $exit->y;
1628	}	2038	}
1629		2039
1630	$rmp->{random_seed} ||= $exit->random_seed;	2040	$rmp->{random_seed} ||= $exit->random_seed;
1631		2041
1632	my $data = cf::to_json $rmp;	2042	my $data = cf::to_json $rmp;
1633	my $md5 = Digest::MD5::md5_hex $data;	2043	my $md5 = Digest::MD5::md5_hex $data;
		2044	my $meta = "$RANDOMDIR/$md5.meta";
1634		2045
1635	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) {
1636	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;
1637		2050
1638	$exit->slaying ("?random/$md5");	2051	$exit->slaying ("?random/$md5");
1639	$exit->msg (undef);	2052	$exit->msg (undef);
1640	}	2053	}
1641	}	2054	}
…		…
1643	sub cf::object::player::enter_exit {	2056	sub cf::object::player::enter_exit {
1644	my ($self, $exit) = @_;	2057	my ($self, $exit) = @_;
1645		2058
1646	return unless $self->type == cf::PLAYER;	2059	return unless $self->type == cf::PLAYER;
1647		2060
		2061	if ($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
1648	$self->enter_link;	2072	$self->enter_link;
1649		2073
1650	(cf::async {	2074	(async {
		2075	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2076	unless (eval {
1652	prepare_random_map $exit	2077	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1657		2078
1658	1;	2079	1;
1659	}) {	2080	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2081	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "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. "
1662	. "Please report this to the dungeon master",	2083	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2084	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2085
1665	warn "ERROR in enter_exit: $@";	2086	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2087	$self->leave_link;
1667	}	2088	}
1668	})->prio (1);	2089	})->prio (1);
…		…
1681		2102
1682	sub cf::client::send_drawinfo {	2103	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2104	my ($self, $text, $flags) = @_;
1684		2105
1685	utf8::encode $text;	2106	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2108	}
1688		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	}
1689		2122
1690	=item $success = $client->query ($flags, "text", \&cb)	2123	=item $success = $client->query ($flags, "text", \&cb)
1691		2124
1692	Queues a query to the client, calling the given callback with	2125	Queues a query to the client, calling the given callback with
1693	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>,
…		…
1722	# get handled first	2155	# get handled first
1723	my $queue = delete $ns->{query_queue}	2156	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2157	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2158
1726	(shift @$queue)->[1]->($msg);	2159	(shift @$queue)->[1]->($msg);
		2160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2161
1728	push @{ $ns->{query_queue} }, @$queue;	2162	push @{ $ns->{query_queue} }, @$queue;
1729		2163
1730	if (@{ $ns->{query_queue} } == @$queue) {	2164	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2165	if (@$queue) {
…		…
1735	}	2169	}
1736	}	2170	}
1737	},	2171	},
1738	);	2172	);
1739		2173
1740	=item $client->coro (\&cb)	2174	=item $client->async (\&cb)
1741		2175
1742	Create a new coroutine, running the specified callback. The coroutine will	2176	Create a new coroutine, running the specified callback. The coroutine will
1743	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,
1744	or loss of connection).	2178	or loss of connection).
1745		2179
1746	=cut	2180	=cut
1747		2181
1748	sub cf::client::coro {	2182	sub cf::client::async {
1749	my ($self, $cb) = @_;	2183	my ($self, $cb) = @_;
1750		2184
1751	my $coro = &cf::async ($cb);	2185	my $coro = &Coro::async ($cb);
1752		2186
1753	$coro->on_destroy (sub {	2187	$coro->on_destroy (sub {
1754	delete $self->{_coro}{$coro+0};	2188	delete $self->{_coro}{$coro+0};
1755	});	2189	});
1756		2190
…		…
1789		2223
1790	# here we export the classes and methods available to script code	2224	# here we export the classes and methods available to script code
1791		2225
1792	=pod	2226	=pod
1793		2227
1794	The following fucntions and emthods are available within a safe environment:	2228	The following functions and methods are available within a safe environment:
1795		2229
1796	cf::object contr pay_amount pay_player map	2230	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2231	cf::object::player player
1798	cf::player peaceful	2232	cf::player peaceful
1799	cf::map trigger	2233	cf::map trigger
…		…
1884	#############################################################################	2318	#############################################################################
1885		2319
1886	=head2 EXTENSION DATABASE SUPPORT	2320	=head2 EXTENSION DATABASE SUPPORT
1887		2321
1888	Crossfire maintains a very simple database for extension use. It can	2322	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which	2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1890	excludes objects.	2324	convert to/from binary).
1891		2325
1892	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
1893	using it, it should be unique.	2327	using it, it should be unique.
1894		2328
1895	=over 4	2329	=over 4
1896		2330
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key	2331	=item $value = cf::db_get $family => $key
1904		2332
1905	Returns a single value from the database	2333	Returns a single value from the database.
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911		2334
1912	=item cf::db_put $family => $key => $value	2335	=item cf::db_put $family => $key => $value
1913		2336
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you	2337	Stores the given C<$value> in the family.
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924		2338
1925	=cut	2339	=cut
1926		2340
1927	our $DB;	2341	our $DB;
1928		2342
1929	{	2343	sub db_init {
1930	my $path = cf::localdir . "/database.pst";	2344	unless ($DB) {
		2345	$DB = BDB::db_create $DB_ENV;
1931		2346
1932	sub db_load() {	2347	cf::sync_job {
1933	$DB = stat $path ? Storable::retrieve $path : { };	2348	eval {
1934	}	2349	$DB->set_flags (BDB::CHKSUM);
1935		2350
1936	my $pid;	2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1937		2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1938	sub db_save() {	2353	cf::cleanup "db_open(db): $!" if $!;
1939	waitpid $pid, 0 if $pid;	2354	};
1940	if (0 == ($pid = fork)) {	2355	cf::cleanup "db_open(db): $@" if $@;
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}	2356	};
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	2357	}
		2358	}
1958		2359
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {	2360	sub db_get($$) {
1965	@_ >= 2	2361	my $key = "$_[0]/$_[1]";
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		2362
		2363	cf::sync_job {
		2364	BDB::db_get $DB, undef, $key, my $data;
		2365
		2366	$! ? ()
		2367	: $data
		2368	}
		2369	}
		2370
1970	sub db_put($$;$) {	2371	sub db_put($$$) {
1971	if (@_ >= 3) {	2372	BDB::dbreq_pri 4;
1972	$DB->{$_[0]}{$_[1]} = $_[2];	2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1973	} else {	2374	}
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		2375
1979	cf::global->attach (	2376	=item cf::cache $id => [$paths...], $processversion => $process
1980	prio => 10000,	2377
1981	on_cleanup => sub {	2378	Generic caching function that returns the value of the resource $id,
1982	db_sync;	2379	caching and regenerating as required.
		2380
		2381	This function can block.
		2382
		2383	=cut
		2384
		2385	sub cache {
		2386	my ($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 "$src->[$_]: $!";
1983	},	2408	}
1984	);	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"
1985	}	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
1986		2491
1987	#############################################################################	2492	#############################################################################
1988	# 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	}
1989		2581
1990	sub cfg_load {	2582	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2583	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2584	or return;
1993		2585
1994	local $/;	2586	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2587	*CFG = YAML::Syck::Load <$fh>;
1996		2588
1997	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1998		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
1999	if (exists $CFG{mlockall}) {	2594	if (exists $CFG{mlockall}) {
2000	eval {	2595	eval {
2001	$CFG{mlockall} ? &mlockall : &munlockall	2596	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002	and die "WARNING: m(un)lockall failed: $!\n";	2597	and die "WARNING: m(un)lockall failed: $!\n";
2003	};	2598	};
2004	warn $@ if $@;	2599	warn $@ if $@;
2005	}	2600	}
2006	}	2601	}
2007		2602
2008	sub main {	2603	sub main {
2009	# we must not ever block the main coroutine	2604	# we must not ever block the main coroutine
2010	local $Coro::idle = sub {	2605	local $Coro::idle = sub {
2011	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012	(Coro::unblock_sub {	2607	(async {
2013	Event::one_event;	2608	Event::one_event;
2014	})->();	2609	})->prio (Coro::PRIO_MAX);
2015	};	2610	};
2016		2611
2017	cfg_load;	2612	cfg_load;
2018	db_load;	2613	db_init;
2019	load_extensions;	2614	load_extensions;
		2615
		2616	$TICK_WATCHER->start;
2020	Event::loop;	2617	Event::loop;
2021	}	2618	}
2022		2619
2023	#############################################################################	2620	#############################################################################
2024	# initialisation	2621	# initialisation and cleanup
2025		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
2026	sub reload() {	2678	sub do_reload_perl() {
2027	# can/must only be called in main	2679	# can/must only be called in main
2028	if ($Coro::current != $Coro::main) {	2680	if ($Coro::current != $Coro::main) {
2029	warn "can only reload from main coroutine\n";	2681	warn "can only reload from main coroutine";
2030	return;	2682	return;
2031	}	2683	}
2032		2684
2033	warn "reloading...";	2685	warn "reloading...";
2034		2686
2035	local $FREEZE = 1;	2687	warn "entering sync_job";
		2688
		2689	cf::sync_job {
		2690	cf::write_runtime; # external watchdog should not bark
2036	cf::emergency_save;	2691	cf::emergency_save;
		2692	cf::write_runtime; # external watchdog should not bark
2037		2693
2038	eval {	2694	warn "syncing database to disk";
		2695	BDB::db_env_txn_checkpoint $DB_ENV;
		2696
2039	# 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
2040		2698
2041	# cancel all watchers	2699	warn "cancelling all WF_AUTOCANCEL watchers";
2042	for (Event::all_watchers) {	2700	for (Event::all_watchers) {
2043	$_->cancel if $_->data & WF_AUTOCANCEL;	2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2044	}	2702	}
2045		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
2046	# cancel all extension coros	2715	warn "cancelling all extension coros";
2047	$_->cancel for values %EXT_CORO;	2716	$_->cancel for values %EXT_CORO;
2048	%EXT_CORO = ();	2717	%EXT_CORO = ();
2049		2718
2050	# unload all extensions	2719	warn "removing commands";
2051	for (@exts) {	2720	%COMMAND = ();
		2721
		2722	warn "removing ext commands";
		2723	%EXTCMD = ();
		2724
		2725	warn "unloading/nuking all extensions";
		2726	for my $pkg (@EXTS) {
2052	warn "unloading <$_>";	2727	warn "... unloading $pkg";
2053	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: $@";
2054	}	2734	}
2055		2735
		2736	warn "... nuking $pkg";
		2737	Symbol::delete_package $pkg;
		2738	}
		2739
2056	# unload all modules loaded from $LIBDIR	2740	warn "unloading all perl modules loaded from $LIBDIR";
2057	while (my ($k, $v) = each %INC) {	2741	while (my ($k, $v) = each %INC) {
2058	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059		2743
2060	warn "removing <$k>";	2744	warn "... unloading $k";
2061	delete $INC{$k};	2745	delete $INC{$k};
2062		2746
2063	$k =~ s/\.pm$//;	2747	$k =~ s/\.pm$//;
2064	$k =~ s/\//::/g;	2748	$k =~ s/\//::/g;
2065		2749
…		…
2068	}	2752	}
2069		2753
2070	Symbol::delete_package $k;	2754	Symbol::delete_package $k;
2071	}	2755	}
2072		2756
2073	# sync database to disk
2074	cf::db_sync;
2075	IO::AIO::flush;
2076
2077	# get rid of safe::, as good as possible	2757	warn "getting rid of safe::, as good as possible";
2078	Symbol::delete_package "safe::$_"	2758	Symbol::delete_package "safe::$_"
2079	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);
2080		2760
2081	# remove register_script_function callbacks
2082	# TODO
2083
2084	# unload cf.pm "a bit"	2761	warn "unloading cf.pm \"a bit\"";
2085	delete $INC{"cf.pm"};	2762	delete $INC{"cf.pm"};
		2763	delete $INC{"cf/pod.pm"};
2086		2764
2087	# don't, removes xs symbols, too,	2765	# don't, removes xs symbols, too,
2088	# and global variables created in xs	2766	# and global variables created in xs
2089	#Symbol::delete_package __PACKAGE__;	2767	#Symbol::delete_package __PACKAGE__;
2090		2768
2091	# reload cf.pm	2769	warn "unload completed, starting to reload now";
		2770
2092	warn "reloading cf.pm";	2771	warn "reloading cf.pm";
2093	require cf;	2772	require cf;
2094	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095		2774
2096	# load config and database again	2775	warn "loading config and database again";
2097	cf::cfg_load;	2776	cf::cfg_load;
2098	cf::db_load;
2099		2777
2100	# load extensions
2101	warn "load extensions";	2778	warn "loading extensions";
2102	cf::load_extensions;	2779	cf::load_extensions;
2103		2780
2104	# reattach attachments to objects	2781	warn "reattaching attachments to objects/players";
2105	warn "reattach";	2782	_global_reattach; # objects, sockets
2106	_global_reattach;	2783	warn "reattaching attachments to maps";
2107	};	2784	reattach $_ for values %MAP;
		2785	warn "reattaching attachments to players";
		2786	reattach $_ for values %PLAYER;
2108		2787
2109	if ($@) {	2788	warn "leaving sync_job";
		2789
		2790	1
		2791	} or do {
2110	warn $@;	2792	warn $@;
2111	warn "error while reloading, exiting.";	2793	warn "error while reloading, exiting.";
2112	exit 1;	2794	exit 1;
2113	}	2795	};
2114		2796
2115	warn "reloaded successfully";	2797	warn "reloaded";
2116	};	2798	};
2117		2799
2118	#############################################################################	2800	our $RELOAD_WATCHER; # used only during reload
2119		2801
2120	unless ($LINK_MAP) {	2802	sub reload_perl() {
2121	$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.
2122		2805
2123	$LINK_MAP->width (41);	2806	$RELOAD_WATCHER ||= Event->timer (
2124	$LINK_MAP->height (41);	2807	reentrant => 0,
2125	$LINK_MAP->alloc;
2126	$LINK_MAP->path ("{link}");
2127	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130	# dirty hack because... archetypes are not yet loaded
2131	Event->timer (
2132	after => 2,	2808	after => 0,
		2809	data => WF_AUTOCANCEL,
2133	cb => sub {	2810	cb => sub {
2134	$_[0]->w->cancel;	2811	do_reload_perl;
2135		2812	undef $RELOAD_WATCHER;
2136	# provide some exits "home"
2137	my $exit = cf::object::new "exit";
2138
2139	$exit->slaying ($EMERGENCY_POSITION->[0]);
2140	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143	$LINK_MAP->insert ($exit->clone, 19, 19);
2144	$LINK_MAP->insert ($exit->clone, 19, 20);
2145	$LINK_MAP->insert ($exit->clone, 19, 21);
2146	$LINK_MAP->insert ($exit->clone, 20, 19);
2147	$LINK_MAP->insert ($exit->clone, 20, 21);
2148	$LINK_MAP->insert ($exit->clone, 21, 19);
2149	$LINK_MAP->insert ($exit->clone, 21, 20);
2150	$LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152	$exit->destroy;
2153	});	2813	},
2154		2814	);
2155	$LINK_MAP->{deny_save} = 1;
2156	$LINK_MAP->{deny_reset} = 1;
2157
2158	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159	}	2815	}
2160
2161	register "<global>", __PACKAGE__;
2162		2816
2163	register_command "reload" => sub {	2817	register_command "reload" => sub {
2164	my ($who, $arg) = @_;	2818	my ($who, $arg) = @_;
2165		2819
2166	if ($who->flag (FLAG_WIZ)) {	2820	if ($who->flag (FLAG_WIZ)) {
2167	$who->message ("start of reload.");
2168	reload;
2169	$who->message ("end of reload.");	2821	$who->message ("reloading server.");
		2822	async { reload_perl };
2170	}	2823	}
2171	};	2824	};
2172		2825
2173	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	}
2174		2850
2175	$TICK_WATCHER = Event->timer (	2851	$TICK_WATCHER = Event->timer (
2176	reentrant => 0,	2852	reentrant => 0,
		2853	parked => 1,
2177	prio => 0,	2854	prio => 0,
2178	at => $NEXT_TICK || $TICK,	2855	at => $NEXT_TICK || $TICK,
2179	data => WF_AUTOCANCEL,	2856	data => WF_AUTOCANCEL,
2180	cb => sub {	2857	cb => sub {
2181	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
2182	cf::server_tick; # one server iteration	2866	cf::server_tick; # one server iteration
		2867
2183	$RUNTIME += $TICK;	2868	$RUNTIME += $TICK;
2184	}
2185
2186	$NEXT_TICK += $TICK;	2869	$NEXT_TICK += $TICK;
2187		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
2188	# 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
2189	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2190		2893
2191	$TICK_WATCHER->at ($NEXT_TICK);	2894	$TICK_WATCHER->at ($NEXT_TICK);
2192	$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
2193	},	2903	},
2194	);	2904	);
2195		2905
		2906	{
2196	IO::AIO::max_poll_time $TICK * 0.2;	2907	BDB::max_poll_time $TICK * 0.1;
2197		2908	$BDB_POLL_WATCHER = Event->io (
2198	Event->io (	2909	reentrant => 0,
2199	fd => IO::AIO::poll_fileno,	2910	fd => BDB::poll_fileno,
2200	poll => 'r',	2911	poll => 'r',
2201	prio => 5,	2912	prio => 0,
2202	data => WF_AUTOCANCEL,
2203	cb => \&IO::AIO::poll_cb,
2204	);
2205
2206	Event->timer (
2207	data => WF_AUTOCANCEL,	2913	data => WF_AUTOCANCEL,
2208	after => 0,	2914	cb => \&BDB::poll_cb,
2209	interval => 10,	2915	);
2210	cb => sub {	2916	BDB::min_parallel 8;
2211	(Coro::unblock_sub {	2917
2212	write_runtime	2918	BDB::set_sync_prepare {
2213	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 $@;
2214	})->();	2952	};
2215	},	2953	}
2216	);	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;
2217		3011
2218	END { cf::emergency_save }	3012	END { cf::emergency_save }
2219		3013
2220	1	3014	1
2221		3015

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