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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.266 by root, Fri May 18 01:01:02 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available	112	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		113
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	114	sub cf::map::normalise;
78		115
79	#############################################################################	116	#############################################################################
80		117
81	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
82		119
…		…
89	=item $cf::RUNTIME	126	=item $cf::RUNTIME
90		127
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	129	every server tick.
93		130
94	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		134
96	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
98		139
99	=item $cf::NOW	140	=item $cf::NOW
100		141
101	The time of the last (current) server tick.	142	The time of the last (current) server tick.
102		143
103	=item $cf::TICK	144	=item $cf::TICK
104		145
105	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
106		157
107	=item %cf::CFG	158	=item %cf::CFG
108		159
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		168
112	=back	169	=back
113		170
114	=cut	171	=cut
115		172
116	BEGIN {	173	BEGIN {
117	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	175	my $msg = join "", @_;
119	utf8::encode $msg;
120		176
121	$msg .= "\n"	177	$msg .= "\n"
122	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
123		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	183	LOG llevError, $msg;
125	};	184	};
126	}	185	}
127		186
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		206
148	$Event::DIED = sub {	207	$Event::DIED = sub {
149	warn "error in event callback: @_";	208	warn "error in event callback: @_";
150	};	209	};
151		210
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
157		212
158	=over 4	213	=over 4
159		214
160	=cut	215	=item dumpval $ref
161		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		239
164	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
165		241
166	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
167		243
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
176		245
177	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
178		247
179	=cut	248	=item cf::lock_wait $string
180		249
181	sub to_json($) {	250	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	251
183	JSON::Syck::Dump $_[0]	252	=item my $lock = cf::lock_acquire $string
		253
		254	Wait until the given lock is available and then acquires it and returns
		255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		256	for example when the coroutine gets canceled), the lock is automatically
		257	returned.
		258
		259	Lock names should begin with a unique identifier (for example, cf::map::find
		260	uses map_find and cf::map::load uses map_load).
		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
		266	=cut
		267
		268	our %LOCK;
		269
		270	sub lock_wait($) {
		271	my ($key) = @_;
		272
		273	# wait for lock, if any
		274	while ($LOCK{$key}) {
		275	push @{ $LOCK{$key} }, $Coro::current;
		276	Coro::schedule;
		277	}
184	}	278	}
		279
		280	sub lock_acquire($) {
		281	my ($key) = @_;
		282
		283	# wait, to be sure we are not locked
		284	lock_wait $key;
		285
		286	$LOCK{$key} = [];
		287
		288	Coro::guard {
		289	# wake up all waiters, to be on the safe side
		290	$_->ready for @{ delete $LOCK{$key} };
		291	}
		292	}
		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
		300	sub freeze_mainloop {
		301	return unless $TICK_WATCHER->is_active;
		302
		303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
		306	$TICK_WATCHER->stop;
		307	$guard
		308	}
		309
		310	=item cf::async { BLOCK }
		311
		312	Currently the same as Coro::async_pool, meaning you cannot use
		313	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		314	thing you are allowed to do is call C<prio> on it.
		315
		316	=cut
		317
		318	BEGIN { *async = \&Coro::async_pool }
185		319
186	=item cf::sync_job { BLOCK }	320	=item cf::sync_job { BLOCK }
187		321
188	The design of crossfire+ requires that the main coro ($Coro::main) is	322	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	323	always able to handle events or runnable, as crossfire+ is only partly
…		…
198		332
199	sub sync_job(&) {	333	sub sync_job(&) {
200	my ($job) = @_;	334	my ($job) = @_;
201		335
202	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
203	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
205		341
206	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	343	# (but this is cancel-safe)
208	local $FREEZE = 1;	344	my $freeze_guard = freeze_mainloop;
209		345
210	my $busy = 1;	346	my $busy = 1;
211	my @res;	347	my @res;
212		348
213	(Coro::async {	349	(async {
214	@res = eval { $job->() };	350	@res = eval { $job->() };
215	warn $@ if $@;	351	warn $@ if $@;
216	undef $busy;	352	undef $busy;
217	})->prio (Coro::PRIO_MAX);	353	})->prio (Coro::PRIO_MAX);
218		354
219	while ($busy) {	355	while ($busy) {
220	Coro::cede_notself;	356	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	357	}
		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
223		365
224	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
225	} else {	367	} else {
226	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
227		369
228	$job->()	370	$job->()
229	}	371	}
230	}	372	}
231		373
232	=item $coro = cf::coro { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
233		375
234	Creates and returns a new coro. This coro is automcatially being canceled	376	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	377	extension calling this is being unloaded.
236		378
237	=cut	379	=cut
238		380
239	sub coro(&) {	381	sub async_ext(&) {
240	my $cb = shift;	382	my $cb = shift;
241		383
242	my $coro; $coro = async {	384	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		385
249	$coro->on_destroy (sub {	386	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	387	delete $EXT_CORO{$coro+0};
251	});	388	});
252	$EXT_CORO{$coro+0} = $coro;	389	$EXT_CORO{$coro+0} = $coro;
253		390
254	$coro	391	$coro
255	}	392	}
256		393
257	sub write_runtime {	394	sub write_runtime {
258	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
259		405
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	407	or return;
262		408
		409	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	414	and return;
266		415
		416	# always fsync - this file is important
267	aio_fsync $fh	417	aio_fsync $fh
268	and return;	418	and return;
269		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
270	close $fh	423	close $fh
271	or return;	424	or return;
272		425
273	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
274	and return;	427	and return;
275		428
		429	warn "runtime file written.\n";#d#
		430
276	1	431	1
277	}	432	}
278		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
279	=back	445	=back
280		446
281	=cut	447	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		448
403	#############################################################################	449	#############################################################################
404		450
405	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
406		452
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	579	our @CB_MAP = ();
534		580
535	my %attachment;	581	my %attachment;
536		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
537	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
539		591
540	use sort 'stable';	592	use sort 'stable';
541		593
…		…
712	# object support	764	# object support
713		765
714	sub reattach {	766	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		771
718	my $registry = $obj->registry;	772	my $registry = $obj->registry;
719		773
720	@$registry = ();	774	@$registry = ();
721		775
…		…
768	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
769		823
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	828	close $fh;
775		829
776	if (@$objs) {	830	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	836	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
784	}	838	}
785	} else {	839	} else {
786	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
853	=cut	907	=cut
854		908
855	sub register_extcmd {	909	sub register_extcmd {
856	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
857		911
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
862	}	913	}
863		914
864	cf::player->attach (	915	cf::player->attach (
865	on_command => sub {	916	on_command => sub {
866	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
879		930
880	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
881		932
882	if (ref $msg) {	933	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	937	}
887	}	938	}
888	} else {	939	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		942
892	cf::override;	943	cf::override;
893	},	944	},
894	);	945	);
895		946
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	947	sub load_extension {
903	my ($path) = @_;	948	my ($path) = @_;
904		949
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
906	my $base = $1;	951	my $base = $1;
907	my $pkg = $1;	952	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
910		955
911	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
912		957
913	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
914	or die "$path: $!";	959	or die "$path: $!";
915		960
916	my $source =	961	my $source =
917	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
920	. "\n};\n1";	965	. "\n};\n1";
921		966
922	eval $source	967	unless (eval $source) {
923	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
924	: "extension disabled.\n";	969	: "extension disabled.\n";
925		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
926	push @exts, $pkg;	971	warn $@;
927	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
928		973	exit 1;
929	# no strict 'refs';	974	}
930	# @{"$pkg\::ISA"} = ext::;	975	die $@;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	976	}
945		977
946	# remove commands	978	push @EXTS, $pkg;
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}	979	}
971		980
972	sub load_extensions {	981	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;	983	next unless -r $ext;
…		…
978	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
979	}	988	}
980	}	989	}
981		990
982	#############################################################################	991	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019		992
1020	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1021		994
1022	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1023		996
		997	=cut
		998
		999	package cf::player;
		1000
		1001	use Coro::AIO;
		1002
1024	=head3 cf::player	1003	=head3 cf::player
1025		1004
1026	=over 4	1005	=over 4
1027		1006
1028	=item cf::player::exists $login	1007	=item cf::player::find $login
1029		1008
1030	Returns true when the given account exists.	1009	Returns the given player object, loading it if necessary (might block).
1031		1010
1032	=cut	1011	=cut
1033		1012
1034	sub cf::player::exists($) {	1013	sub playerdir($) {
1035	cf::player::find $_[0]	1014	"$PLAYERDIR/"
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1037	}	1016	}
1038		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
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1040		1190
1041	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1042		1192
1043	=cut	1193	=cut
1044		1194
1045	sub cf::player::ext_reply($$$%) {	1195	sub ext_reply($$%) {
1046	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1047		1197
1048	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1049		1199
1050	$self->send ("ext " . to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
		1201	}
		1202
		1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		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
1051	}	1242	}
1052		1243
1053	=back	1244	=back
1054
1055		1245
1056	=head3 cf::map	1246	=head3 cf::map
1057		1247
1058	=over 4	1248	=over 4
1059		1249
…		…
1062	package cf::map;	1252	package cf::map;
1063		1253
1064	use Fcntl;	1254	use Fcntl;
1065	use Coro::AIO;	1255	use Coro::AIO;
1066		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1067	our $MAX_RESET = 7200;	1261	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1262	our $DEFAULT_RESET = 3000;
1069		1263
1070	sub generate_random_map {	1264	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1267	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$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},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(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"
1087	}	1409	}
1088		1410
1089	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1090	# all maps in C++...	1412	# all maps in C++...
1091	sub change_all_map_light {	1413	sub change_all_map_light {
1092	my ($change) = @_;	1414	my ($change) = @_;
1093		1415
1094	$_->change_map_light ($change) for values %cf::MAP;	1416	$_->change_map_light ($change)
		1417	for grep $_->outdoor, values %cf::MAP;
1095	}	1418	}
1096		1419
		1420	sub unlink_save {
		1421	my ($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
1097	sub try_load_header($) {	1428	sub load_header_from($) {
1098	my ($path) = @_;	1429	my ($self, $path) = @_;
1099		1430
1100	utf8::encode $path;	1431	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1102	or return;	1436	or return;
1103		1437
1104	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
1105	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1106		1484
1107	$map->load_header ($path)	1485	$self->default_region (cf::region::find_by_path $self->{path})
1108	or return;	1486	unless $self->default_region;
1109		1487
1110	$map->{load_path} = $path;	1488	1
1111
1112	$map
1113	}	1489	}
1114		1490
		1491	sub find;
1115	sub find_map {	1492	sub find {
1116	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1117		1494
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1496
		1497	cf::lock_wait "map_find:$path";
		1498
1123	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1124	# do it the slow way	1500	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1501	my $map = new_from_path cf::map $path
1126
1127	if ($map) {
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1502	or return;
1139		1503
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1505
1154	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;
1155	$map->reset;	1512	$map->reset;
1156	$map = find_map $path;	1513	undef $guard;
		1514	return find $path;
1157	}	1515	}
1158		1516
1159	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1160	}	1518	}
1161	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1162		1523
1163	sub load {	1524	sub load {
1164	my ($self) = @_;	1525	my ($self) = @_;
1165		1526
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1527	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1528
1170	my $path = $self->{path};	1529	my $path = $self->{path};
1171		1530
		1531	{
		1532	my $guard = cf::lock_acquire "map_load:$path";
		1533
		1534	return if $self->in_memory != cf::MAP_SWAPPED;
		1535
		1536	$self->in_memory (cf::MAP_LOADING);
		1537
1172	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1173	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1544	or return;
1175		1545
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1547	if delete $self->{load_original};
1178		1548
1179	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1550	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1552	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1184	}	1554	}
1185	}	1555	}
1186		1556
		1557	Coro::cede;
1187	# now do the right thing for maps	1558	# now do the right thing for maps
1188	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1199	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;
1200	$self->activate;	1571	$self->activate;
1201	}	1572	}
1202		1573
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1575	}
1205		1576
1206	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	$neigh->load;
		1610	}
		1611	}
		1612
		1613	sub find_sync {
1207	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1208		1615
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1616	cf::sync_job { find $path, $origin }
		1617	}
1210		1618
1211	cf::sync_job {	1619	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1620	my ($map) = @_;
1213	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;
1214	$map->load;	1643	$map->load;
1215	$map	1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
1216	}	1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
1217	}	1653	}
1218		1654
1219	sub save {	1655	sub save {
1220	my ($self) = @_;	1656	my ($self) = @_;
1221		1657
		1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1659
1222	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1223		1661
1224	return unless $self->dirty;	1662	return unless $self->dirty;
1225		1663
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1666
1229	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1230		1668
1231	return if $self->{deny_save};	1669	return if $self->{deny_save};
1232		1670
		1671	local $self->{last_access} = $self->last_access;#d#
		1672
		1673	cf::async {
		1674	$_->contr->save for $self->players;
		1675	};
		1676
1233	if ($uniq) {	1677	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1680	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1682	}
1239	}	1683	}
1240		1684
1241	sub swap_out {	1685	sub swap_out {
1242	my ($self) = @_;	1686	my ($self) = @_;
		1687
		1688	# save first because save cedes
		1689	$self->save;
		1690
		1691	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1692
1244	return if $self->players;	1693	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1694	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1695	return if $self->{deny_save};
1247		1696
1248	$self->save;
1249	$self->clear;	1697	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1698	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1699	}
1252		1700
1253	sub reset_at {	1701	sub reset_at {
1254	my ($self) = @_;	1702	my ($self) = @_;
1255		1703
1256	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1258	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1259		1707
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1710
…		…
1267	my ($self) = @_;	1715	my ($self) = @_;
1268		1716
1269	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1270	}	1718	}
1271		1719
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	1720	sub reset {
1294	my ($self) = @_;	1721	my ($self) = @_;
1295		1722
		1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1724
1296	return if $self->players;	1725	return if $self->players;
1297	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1298		1727
1299	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1300		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
1301	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1302		1743
1303	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1304		1745
1305	$self->unlink_save;	1746	$self->unlink_save;
1306	$self->destroy;	1747	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1310		1751
1311	sub nuke {	1752	sub nuke {
1312	my ($self) = @_;	1753	my ($self) = @_;
1313		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1317	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1318	}	1768	}
1319		1769
1320	sub customise_for {	1770	=item cf::map::unique_maps
1321	my ($map, $ob) = @_;
1322		1771
1323	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1325	}
1326		1774
1327	$map	1775	=cut
1328	}
1329		1776
1330	sub emergency_save {	1777	sub unique_maps() {
1331	local $cf::FREEZE = 1;	1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
1332		1780
1333	warn "enter emergency map save\n";	1781	my @paths;
1334		1782
1335	cf::sync_job {	1783	for (@$files) {
1336	warn "begin emergency map save\n";	1784	utf8::decode $_;
1337	$_->save for values %cf::MAP;	1785	next if /\.pst$/;
		1786	next unless /^$PATH_SEP/o;
		1787
		1788	push @paths, cf::map::normalise $_;
1338	};	1789	}
1339		1790
1340	warn "end emergency map save\n";	1791	\@paths
1341	}	1792	}
1342		1793
1343	package cf;	1794	package cf;
1344		1795
1345	=back	1796	=back
1346		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
1347		1824
1348	=head3 cf::object::player	1825	=head3 cf::object::player
1349		1826
1350	=over 4	1827	=over 4
1351		1828
…		…
1391		1868
1392	=item $player_object->enter_link	1869	=item $player_object->enter_link
1393		1870
1394	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}>).
1395		1872
1396	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
1397	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1398		1875
		1876	Will never block.
		1877
1399	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1400		1879
1401	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	1883	fails, to the emergency map position.
1405		1884
1406	Might block.	1885	Might block.
1407		1886
1408	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($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	$LINK_MAP
		1897	}
1409		1898
1410	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1411	my ($self) = @_;	1900	my ($self) = @_;
1412		1901
1413	return if $self->map == $LINK_MAP;	1902	$self->deactivate_recursive;
1414		1903
		1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1905
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;	1907	if $self->map;
1417		1908
1418	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1419	$self->deactivate_recursive;
1420	}	1910	}
1421		1911
1422	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1424		1914
1425	my $link_pos = delete $self->{_link_pos};	1915	my $link_pos = delete $self->{_link_pos};
1426		1916
1427	unless ($map) {	1917	unless ($map) {
1428	# restore original map position	1918	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	1919	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	1920	$map = cf::map::find $map;
1431		1921
1432	unless ($map) {	1922	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	1923	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	1924	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	1925	or die "FATAL: cannot load emergency map\n";
1436	}	1926	}
1437	}	1927	}
1438		1928
1439	($x, $y) = (-1, -1)	1929	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	1932	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	1933	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	1934	if $x <=0 && $y <= 0;
1445		1935
1446	$map->load;	1936	$map->load;
		1937	$map->load_diag;
1447		1938
		1939	return unless $self->contr->active;
1448	$self->activate_recursive;	1940	$self->activate_recursive;
		1941
		1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	1943	$self->enter_map ($map, $x, $y);
1450	}	1944	}
1451		1945
		1946	cf::player->attach (
		1947	on_logout => sub {
		1948	my ($pl) = @_;
		1949
		1950	# abort map switching before logout
		1951	if ($pl->ob->{_link_pos}) {
		1952	cf::sync_job {
		1953	$pl->ob->leave_link
		1954	};
		1955	}
		1956	},
		1957	on_login => sub {
		1958	my ($pl) = @_;
		1959
		1960	# try to abort aborted map switching on player login :)
		1961	# should happen only on crashes
		1962	if ($pl->ob->{_link_pos}) {
		1963	$pl->ob->enter_link;
		1964	(async {
		1965	$pl->ob->reply (undef,
		1966	"There was an internal problem at your last logout, "
		1967	. "the server will try to bring you to your intended destination in a second.",
		1968	cf::NDI_RED);
		1969	# we need this sleep as the login has a concurrent enter_exit running
		1970	# and this sleep increases chances of the player not ending up in scorn
		1971	Coro::Timer::sleep 1;
		1972	$pl->ob->leave_link;
		1973	})->prio (2);
		1974	}
		1975	},
		1976	);
		1977
1452	=item $player_object->goto_map ($path, $x, $y)	1978	=item $player_object->goto ($path, $x, $y)
1453		1979
1454	=cut	1980	=cut
1455		1981
1456	sub cf::object::player::goto_map {	1982	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y) = @_;
1458		1984
1459	$self->enter_link;	1985	$self->enter_link;
1460		1986
1461	(Coro::async {	1987	(async {
1462	$path = new cf::path $path;	1988	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	1989	my $map = cf::map::find $path;
1465	$map = $map->customise_for ($self) if $map;	1990	$map = $map->customise_for ($self) if $map;
1466		1991	$map
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	1992	} or
1468	# if $map;
1469
1470	$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);
1471		1994
1472	$self->leave_link ($map, $x, $y);	1995	$self->leave_link ($map, $x, $y);
1473	})->prio (1);	1996	})->prio (1);
1474	}	1997	}
1475		1998
…		…
1479		2002
1480	sub parse_random_map_params {	2003	sub parse_random_map_params {
1481	my ($spec) = @_;	2004	my ($spec) = @_;
1482		2005
1483	my $rmp = { # defaults	2006	my $rmp = { # defaults
1484	xsize => 10,	2007	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2008	ysize => (cf::rndm 15, 40),
		2009	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2010	#layout => string,
1486	};	2011	};
1487		2012
1488	for (split /\n/, $spec) {	2013	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2014	my ($k, $v) = split /\s+/, $_, 2;
1490		2015
…		…
1494	$rmp	2019	$rmp
1495	}	2020	}
1496		2021
1497	sub prepare_random_map {	2022	sub prepare_random_map {
1498	my ($exit) = @_;	2023	my ($exit) = @_;
		2024
		2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2026
1500	# all this does is basically replace the /! path by	2027	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2028	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2029	# that depends on the exit object
1503		2030
1504	my $rmp = parse_random_map_params $exit->msg;	2031	my $rmp = parse_random_map_params $exit->msg;
1505		2032
1506	if ($exit->map) {	2033	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2034	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2035	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2036	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2037	$rmp->{origin_y} = $exit->y;
1511	}	2038	}
1512		2039
1513	$rmp->{random_seed} ||= $exit->random_seed;	2040	$rmp->{random_seed} ||= $exit->random_seed;
1514		2041
1515	my $data = cf::to_json $rmp;	2042	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2043	my $md5 = Digest::MD5::md5_hex $data;
		2044	my $meta = "$RANDOMDIR/$md5.meta";
1517		2045
1518	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) {
1519	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;
1520		2050
1521	$exit->slaying ("?random/$md5");	2051	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2052	$exit->msg (undef);
1523	}	2053	}
1524	}	2054	}
…		…
1526	sub cf::object::player::enter_exit {	2056	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2057	my ($self, $exit) = @_;
1528		2058
1529	return unless $self->type == cf::PLAYER;	2059	return unless $self->type == cf::PLAYER;
1530		2060
		2061	if ($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
1531	$self->enter_link;	2072	$self->enter_link;
1532		2073
1533	(Coro::async {	2074	(async {
		2075	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2076	unless (eval {
1535		2077	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		2078
1542	1;	2079	1;
1543	}) {	2080	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2081	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "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. "
1546	. "Please report this to the dungeon master",	2083	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2084	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2085
1549	warn "ERROR in enter_exit: $@";	2086	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2087	$self->leave_link;
1551	}	2088	}
1552	})->prio (1);	2089	})->prio (1);
…		…
1565		2102
1566	sub cf::client::send_drawinfo {	2103	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2104	my ($self, $text, $flags) = @_;
1568		2105
1569	utf8::encode $text;	2106	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2108	}
1572		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	}
1573		2122
1574	=item $success = $client->query ($flags, "text", \&cb)	2123	=item $success = $client->query ($flags, "text", \&cb)
1575		2124
1576	Queues a query to the client, calling the given callback with	2125	Queues a query to the client, calling the given callback with
1577	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>,
…		…
1602	on_reply => sub {	2151	on_reply => sub {
1603	my ($ns, $msg) = @_;	2152	my ($ns, $msg) = @_;
1604		2153
1605	# this weird shuffling is so that direct followup queries	2154	# this weird shuffling is so that direct followup queries
1606	# get handled first	2155	# get handled first
1607	my $queue = delete $ns->{query_queue};	2156	my $queue = delete $ns->{query_queue}
		2157	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2158
1609	(shift @$queue)->[1]->($msg);	2159	(shift @$queue)->[1]->($msg);
		2160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2161
1611	push @{ $ns->{query_queue} }, @$queue;	2162	push @{ $ns->{query_queue} }, @$queue;
1612		2163
1613	if (@{ $ns->{query_queue} } == @$queue) {	2164	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2165	if (@$queue) {
…		…
1618	}	2169	}
1619	}	2170	}
1620	},	2171	},
1621	);	2172	);
1622		2173
1623	=item $client->coro (\&cb)	2174	=item $client->async (\&cb)
1624		2175
1625	Create a new coroutine, running the specified callback. The coroutine will	2176	Create a new coroutine, running the specified callback. The coroutine will
1626	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,
1627	or loss of connection).	2178	or loss of connection).
1628		2179
1629	=cut	2180	=cut
1630		2181
1631	sub cf::client::coro {	2182	sub cf::client::async {
1632	my ($self, $cb) = @_;	2183	my ($self, $cb) = @_;
1633		2184
1634	my $coro; $coro = async {	2185	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2186
1641	$coro->on_destroy (sub {	2187	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2188	delete $self->{_coro}{$coro+0};
1643	});	2189	});
1644		2190
…		…
1677		2223
1678	# here we export the classes and methods available to script code	2224	# here we export the classes and methods available to script code
1679		2225
1680	=pod	2226	=pod
1681		2227
1682	The following fucntions and emthods are available within a safe environment:	2228	The following functions and methods are available within a safe environment:
1683		2229
1684	cf::object contr pay_amount pay_player map	2230	cf::object contr pay_amount pay_player map
1685	cf::object::player player	2231	cf::object::player player
1686	cf::player peaceful	2232	cf::player peaceful
1687	cf::map trigger	2233	cf::map trigger
…		…
1772	#############################################################################	2318	#############################################################################
1773		2319
1774	=head2 EXTENSION DATABASE SUPPORT	2320	=head2 EXTENSION DATABASE SUPPORT
1775		2321
1776	Crossfire maintains a very simple database for extension use. It can	2322	Crossfire maintains a very simple database for extension use. It can
1777	currently store anything that can be serialised using Storable, which	2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1778	excludes objects.	2324	convert to/from binary).
1779		2325
1780	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
1781	using it, it should be unique.	2327	using it, it should be unique.
1782		2328
1783	=over 4	2329	=over 4
1784		2330
1785	=item $hashref = cf::db_get $family
1786
1787	Return a hashref for use by the extension C<$family>, which can be
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790
1791	=item $value = cf::db_get $family => $key	2331	=item $value = cf::db_get $family => $key
1792		2332
1793	Returns a single value from the database	2333	Returns a single value from the database.
1794
1795	=item cf::db_put $family => $hashref
1796
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799		2334
1800	=item cf::db_put $family => $key => $value	2335	=item cf::db_put $family => $key => $value
1801		2336
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you	2337	Stores the given C<$value> in the family.
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812		2338
1813	=cut	2339	=cut
1814		2340
1815	our $DB;	2341	our $DB;
1816		2342
1817	{	2343	sub db_init {
1818	my $path = cf::localdir . "/database.pst";	2344	unless ($DB) {
		2345	$DB = BDB::db_create $DB_ENV;
1819		2346
1820	sub db_load() {	2347	cf::sync_job {
1821	warn "loading database $path\n";#d# remove later	2348	eval {
1822	$DB = stat $path ? Storable::retrieve $path : { };	2349	$DB->set_flags (BDB::CHKSUM);
1823	}
1824		2350
1825	my $pid;	2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1826		2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1827	sub db_save() {	2353	cf::cleanup "db_open(db): $!" if $!;
1828	warn "saving database $path\n";#d# remove later	2354	};
1829	waitpid $pid, 0 if $pid;	2355	cf::cleanup "db_open(db): $@" if $@;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}	2356	};
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});	2357	}
		2358	}
1848		2359
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}
1853
1854	sub db_get($;$) {	2360	sub db_get($$) {
1855	@_ >= 2	2361	my $key = "$_[0]/$_[1]";
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859		2362
		2363	cf::sync_job {
		2364	BDB::db_get $DB, undef, $key, my $data;
		2365
		2366	$! ? ()
		2367	: $data
		2368	}
		2369	}
		2370
1860	sub db_put($$;$) {	2371	sub db_put($$$) {
1861	if (@_ >= 3) {	2372	BDB::dbreq_pri 4;
1862	$DB->{$_[0]}{$_[1]} = $_[2];	2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1863	} else {	2374	}
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868		2375
1869	cf::global->attach (	2376	=item cf::cache $id => [$paths...], $processversion => $process
1870	prio => 10000,	2377
1871	on_cleanup => sub {	2378	Generic caching function that returns the value of the resource $id,
1872	db_sync;	2379	caching and regenerating as required.
		2380
		2381	This function can block.
		2382
		2383	=cut
		2384
		2385	sub cache {
		2386	my ($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 "$src->[$_]: $!";
1873	},	2408	}
1874	);	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"
1875	}	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
1876		2491
1877	#############################################################################	2492	#############################################################################
1878	# 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	}
1879		2581
1880	sub cfg_load {	2582	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2583	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2584	or return;
1883		2585
1884	local $/;	2586	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2587	*CFG = YAML::Syck::Load <$fh>;
		2588
		2589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2590
		2591	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2592	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2593
		2594	if (exists $CFG{mlockall}) {
		2595	eval {
		2596	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2597	and die "WARNING: m(un)lockall failed: $!\n";
		2598	};
		2599	warn $@ if $@;
		2600	}
1886	}	2601	}
1887		2602
1888	sub main {	2603	sub main {
1889	# we must not ever block the main coroutine	2604	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2605	local $Coro::idle = sub {
1891	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#
1892	(Coro::unblock_sub {	2607	(async {
1893	Event::one_event;	2608	Event::one_event;
1894	})->();	2609	})->prio (Coro::PRIO_MAX);
1895	};	2610	};
1896		2611
1897	cfg_load;	2612	cfg_load;
1898	db_load;	2613	db_init;
1899	load_extensions;	2614	load_extensions;
		2615
		2616	$TICK_WATCHER->start;
1900	Event::loop;	2617	Event::loop;
1901	}	2618	}
1902		2619
1903	#############################################################################	2620	#############################################################################
1904	# initialisation	2621	# initialisation and cleanup
1905		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
1906	sub reload() {	2678	sub do_reload_perl() {
1907	# can/must only be called in main	2679	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2680	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2681	warn "can only reload from main coroutine";
1910	return;	2682	return;
1911	}	2683	}
1912		2684
1913	warn "reloading...";	2685	warn "reloading...";
1914		2686
1915	local $FREEZE = 1;	2687	warn "entering sync_job";
		2688
		2689	cf::sync_job {
		2690	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	2691	cf::emergency_save;
		2692	cf::write_runtime; # external watchdog should not bark
1917		2693
1918	eval {	2694	warn "syncing database to disk";
		2695	BDB::db_env_txn_checkpoint $DB_ENV;
		2696
1919	# 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
1920		2698
1921	# cancel all watchers	2699	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	2700	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	2701	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	2702	}
1925		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
1926	# cancel all extension coros	2715	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	2716	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	2717	%EXT_CORO = ();
1929		2718
1930	# unload all extensions	2719	warn "removing commands";
1931	for (@exts) {	2720	%COMMAND = ();
		2721
		2722	warn "removing ext commands";
		2723	%EXTCMD = ();
		2724
		2725	warn "unloading/nuking all extensions";
		2726	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	2727	warn "... unloading $pkg";
1933	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: $@";
1934	}	2734	}
1935		2735
		2736	warn "... nuking $pkg";
		2737	Symbol::delete_package $pkg;
		2738	}
		2739
1936	# unload all modules loaded from $LIBDIR	2740	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	2741	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		2743
1940	warn "removing <$k>";	2744	warn "... unloading $k";
1941	delete $INC{$k};	2745	delete $INC{$k};
1942		2746
1943	$k =~ s/\.pm$//;	2747	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	2748	$k =~ s/\//::/g;
1945		2749
…		…
1948	}	2752	}
1949		2753
1950	Symbol::delete_package $k;	2754	Symbol::delete_package $k;
1951	}	2755	}
1952		2756
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	2757	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	2758	Symbol::delete_package "safe::$_"
1959	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);
1960		2760
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	2761	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	2762	delete $INC{"cf.pm"};
		2763	delete $INC{"cf/pod.pm"};
1966		2764
1967	# don't, removes xs symbols, too,	2765	# don't, removes xs symbols, too,
1968	# and global variables created in xs	2766	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	2767	#Symbol::delete_package __PACKAGE__;
1970		2768
1971	# reload cf.pm	2769	warn "unload completed, starting to reload now";
		2770
1972	warn "reloading cf.pm";	2771	warn "reloading cf.pm";
1973	require cf;	2772	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		2774
1976	# load config and database again	2775	warn "loading config and database again";
1977	cf::cfg_load;	2776	cf::cfg_load;
1978	cf::db_load;
1979		2777
1980	# load extensions
1981	warn "load extensions";	2778	warn "loading extensions";
1982	cf::load_extensions;	2779	cf::load_extensions;
1983		2780
1984	# reattach attachments to objects	2781	warn "reattaching attachments to objects/players";
1985	warn "reattach";	2782	_global_reattach; # objects, sockets
1986	_global_reattach;	2783	warn "reattaching attachments to maps";
1987	};	2784	reattach $_ for values %MAP;
		2785	warn "reattaching attachments to players";
		2786	reattach $_ for values %PLAYER;
1988		2787
1989	if ($@) {	2788	warn "leaving sync_job";
		2789
		2790	1
		2791	} or do {
1990	warn $@;	2792	warn $@;
1991	warn "error while reloading, exiting.";	2793	warn "error while reloading, exiting.";
1992	exit 1;	2794	exit 1;
1993	}	2795	};
1994		2796
1995	warn "reloaded successfully";	2797	warn "reloaded";
1996	};	2798	};
1997		2799
1998	#############################################################################	2800	our $RELOAD_WATCHER; # used only during reload
1999		2801
2000	unless ($LINK_MAP) {	2802	sub reload_perl() {
2001	$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.
2002		2805
2003	$LINK_MAP->width (41);	2806	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	2807	reentrant => 0,
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,	2808	after => 0,
		2809	data => WF_AUTOCANCEL,
2013	cb => sub {	2810	cb => sub {
2014	$_[0]->w->cancel;	2811	do_reload_perl;
2015		2812	undef $RELOAD_WATCHER;
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});	2813	},
2034		2814	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	2815	}
2040
2041	register "<global>", __PACKAGE__;
2042		2816
2043	register_command "reload" => sub {	2817	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	2818	my ($who, $arg) = @_;
2045		2819
2046	if ($who->flag (FLAG_WIZ)) {	2820	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	2821	$who->message ("reloading server.");
		2822	async { reload_perl };
2050	}	2823	}
2051	};	2824	};
2052		2825
2053	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	}
2054		2850
2055	$TICK_WATCHER = Event->timer (	2851	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	2852	reentrant => 0,
		2853	parked => 1,
2057	prio => 0,	2854	prio => 0,
2058	at => $NEXT_TICK || $TICK,	2855	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	2856	data => WF_AUTOCANCEL,
2060	cb => sub {	2857	cb => sub {
2061	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
2062	cf::server_tick; # one server iteration	2866	cf::server_tick; # one server iteration
		2867
2063	$RUNTIME += $TICK;	2868	$RUNTIME += $TICK;
2064	}
2065
2066	$NEXT_TICK += $TICK;	2869	$NEXT_TICK += $TICK;
2067		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
2068	# 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
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		2893
2071	$TICK_WATCHER->at ($NEXT_TICK);	2894	$TICK_WATCHER->at ($NEXT_TICK);
2072	$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
2073	},	2903	},
2074	);	2904	);
2075		2905
		2906	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	2907	BDB::max_poll_time $TICK * 0.1;
2077		2908	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	2909	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	2910	fd => BDB::poll_fileno,
2080	poll => 'r',	2911	poll => 'r',
2081	prio => 5,	2912	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	2913	data => WF_AUTOCANCEL,
2088	after => 0,	2914	cb => \&BDB::poll_cb,
2089	interval => 10,	2915	);
2090	cb => sub {	2916	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	2917
2092	write_runtime	2918	BDB::set_sync_prepare {
2093	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 $@;
2094	})->();	2952	};
2095	},	2953	}
2096	);	2954	}
		2955
		2956	{
		2957	IO::AIO::min_parallel 8;
		2958
		2959	undef $Coro::AIO::WATCHER;
		2960	IO::AIO::max_poll_time $TICK * 0.1;
		2961	$AIO_POLL_WATCHER = Event->io (
		2962	reentrant => 0,
		2963	data => WF_AUTOCANCEL,
		2964	fd => IO::AIO::poll_fileno,
		2965	poll => 'r',
		2966	prio => 6,
		2967	cb => \&IO::AIO::poll_cb,
		2968	);
		2969	}
		2970
		2971	my $_log_backtrace;
		2972
		2973	sub _log_backtrace {
		2974	my ($msg, @addr) = @_;
		2975
		2976	$msg =~ s/\n//;
		2977
		2978	# limit the # of concurrent backtraces
		2979	if ($_log_backtrace < 2) {
		2980	++$_log_backtrace;
		2981	async {
		2982	my @bt = fork_call {
		2983	@addr = map { sprintf "%x", $_ } @addr;
		2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2986	or die "addr2line: $!";
		2987
		2988	my @funcs;
		2989	my @res = <$fh>;
		2990	chomp for @res;
		2991	while (@res) {
		2992	my ($func, $line) = splice @res, 0, 2, ();
		2993	push @funcs, "[$func] $line";
		2994	}
		2995
		2996	@funcs
		2997	};
		2998
		2999	LOG llevInfo, "[ABT] $msg\n";
		3000	LOG llevInfo, "[ABT] $_\n" for @bt;
		3001	--$_log_backtrace;
		3002	};
		3003	} else {
		3004	LOG llevInfo, "[ABT] $msg\n";
		3005	LOG llevInfo, "[ABT] [suppressed]\n";
		3006	}
		3007	}
		3008
		3009	# load additional modules
		3010	use cf::pod;
		3011
		3012	END { cf::emergency_save }
2097		3013
2098	1	3014	1
2099		3015

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