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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC vs.
Revision 1.265 by root, Fri May 11 08:00:00 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
20	use Data::Dumper;	26	use Data::Dumper;
21	use Digest::MD5;	27	use Digest::MD5;
22	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
23	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
26		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
27	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
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		41
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
33		44
34	$Coro::main->prio (Coro::PRIO_MAX); # 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
35		46
		47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		48
36	our %COMMAND = ();	49	our %COMMAND = ();
37	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
39		56
		57	our $RELOAD; # number of reloads so far
40	our @EVENT;	58	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		59
43	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(!)
44	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	76	our $NEXT_TICK;
46	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;
47		82
48	our %CFG;	83	our %CFG;
49		84
50	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	86	our $RUNTIME;
52		87
53	our %PLAYER; # all users	88	our %PLAYER; # all users
54	our %MAP; # all maps	89	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		91
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	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 $tick_start; # for load detecting purposes
61		98
62	binmode STDOUT;	99	binmode STDOUT;
63	binmode STDERR;	100	binmode STDERR;
64		101
65	# read virtual server time, if available	102	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
70	}	107	}
71		108
72	mkdir cf::localdir;	109	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		111
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
81		115
82	#############################################################################	116	#############################################################################
83		117
84	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
85		119
…		…
92	=item $cf::RUNTIME	126	=item $cf::RUNTIME
93		127
94	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
95	every server tick.	129	every server tick.
96		130
97	=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
98		134
99	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		139
102	=item $cf::NOW	140	=item $cf::NOW
103		141
104	The time of the last (current) server tick.	142	The time of the last (current) server tick.
105		143
106	=item $cf::TICK	144	=item $cf::TICK
107		145
108	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.
109		157
110	=item %cf::CFG	158	=item %cf::CFG
111		159
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	161	from wherever your confdir points to.
114		162
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	163	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		164
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	166	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.
121		168
122	=back	169	=back
123		170
124	=cut	171	=cut
125		172
126	BEGIN {	173	BEGIN {
127	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	175	my $msg = join "", @_;
129	utf8::encode $msg;
130		176
131	$msg .= "\n"	177	$msg .= "\n"
132	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
133		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
134	LOG llevError, $msg;	183	LOG llevError, $msg;
135	};	184	};
136	}	185	}
137		186
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
156	}	205	}
157		206
158	$Event::DIED = sub {	207	$Event::DIED = sub {
159	warn "error in event callback: @_";	208	warn "error in event callback: @_";
160	};	209	};
161
162	my %ext_pkg;
163	my @exts;
164	my @hook;
165		210
166	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
167		212
168	=over 4	213	=over 4
169		214
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	234	$d
190	} || "[unable to dump $_[0]: '$@']";	235	} || "[unable to dump $_[0]: '$@']";
191	}	236	}
192		237
193	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
194		239
195	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
196		241
197	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
198		243
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
207		245
208	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
209
210	=cut
211
212	sub to_json($) {
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214	JSON::Syck::Dump $_[0]
215	}
216		247
217	=item cf::lock_wait $string	248	=item cf::lock_wait $string
218		249
219	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
220		251
…		…
226	returned.	257	returned.
227		258
228	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
230		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
231	=cut	266	=cut
232		267
233	our %LOCK;	268	our %LOCK;
234		269
235	sub lock_wait($) {	270	sub lock_wait($) {
…		…
254	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
256	}	291	}
257	}	292	}
258		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
259	sub freeze_mainloop {	300	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
261		302
262	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
263	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
264	$guard	307	$guard
265	}	308	}
266		309
267	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
289		332
290	sub sync_job(&) {	333	sub sync_job(&) {
291	my ($job) = @_;	334	my ($job) = @_;
292		335
293	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
294	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
296		341
297	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
309		354
310	while ($busy) {	355	while ($busy) {
311	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
312	}	357	}
313		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, "long sync job\n"
		362	if $time > $TICK * 0.5;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
314	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
315	} else {	367	} else {
316	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
317		369
318	$job->()	370	$job->()
319	}	371	}
320	}	372	}
321		373
322	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
323		375
324	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	377	extension calling this is being unloaded.
326		378
327	=cut	379	=cut
328		380
329	sub async_ext(&) {	381	sub async_ext(&) {
…		…
338		390
339	$coro	391	$coro
340	}	392	}
341		393
342	sub write_runtime {	394	sub write_runtime {
343	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";
344		405
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
346	or return;	407	or return;
347		408
		409	my $value = $cf::RUNTIME + 90 + 10;
348	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
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;	414	and return;
351		415
		416	# always fsync - this file is important
352	aio_fsync $fh	417	aio_fsync $fh
353	and return;	418	and return;
354		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
355	close $fh	423	close $fh
356	or return;	424	or return;
357		425
358	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
359	and return;	427	and return;
360		428
		429	warn "runtime file written.\n";#d#
		430
361	1	431	1
362	}	432	}
363		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
364	=back	445	=back
365		446
366	=cut	447	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		448
490	#############################################################################	449	#############################################################################
491		450
492	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
493		452
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	579	our @CB_MAP = ();
621		580
622	my %attachment;	581	my %attachment;
623		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
624	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
626		591
627	use sort 'stable';	592	use sort 'stable';
628		593
…		…
799	# object support	764	# object support
800		765
801	sub reattach {	766	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		771
805	my $registry = $obj->registry;	772	my $registry = $obj->registry;
806		773
807	@$registry = ();	774	@$registry = ();
808		775
…		…
855	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
856		823
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	828	close $fh;
862		829
863	if (@$objs) {	830	if (@$objs) {
864	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) {
865	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	836	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
871	}	838	}
872	} else {	839	} else {
873	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
940	=cut	907	=cut
941		908
942	sub register_extcmd {	909	sub register_extcmd {
943	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
944		911
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
949	}	913	}
950		914
951	cf::player->attach (	915	cf::player->attach (
952	on_command => sub {	916	on_command => sub {
953	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
966		930
967	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
968		932
969	if (ref $msg) {	933	if (ref $msg) {
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
972	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
973	}	937	}
974	}	938	}
975	} else {	939	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
978		942
979	cf::override;	943	cf::override;
980	},	944	},
981	);	945	);
982		946
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {	947	sub load_extension {
990	my ($path) = @_;	948	my ($path) = @_;
991		949
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;	951	my $base = $1;
994	my $pkg = $1;	952	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
997		955
998	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
999		957
1000	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
1001	or die "$path: $!";	959	or die "$path: $!";
1002		960
1003	my $source =	961	my $source =
1004	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
1007	. "\n};\n1";	965	. "\n};\n1";
1008		966
1009	eval $source	967	unless (eval $source) {
1010	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
1011	: "extension disabled.\n";	969	: "extension disabled.\n";
1012		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
1013	push @exts, $pkg;	971	warn $@;
1014	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
1015		973	exit 1;
1016	# no strict 'refs';	974	}
1017	# @{"$pkg\::ISA"} = ext::;	975	die $@;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }	976	}
1032		977
1033	# remove commands	978	push @EXTS, $pkg;
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}	979	}
1058		980
1059	sub load_extensions {	981	sub load_extensions {
1060	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	983	next unless -r $ext;
…		…
1065	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1066	}	988	}
1067	}	989	}
1068		990
1069	#############################################################################	991	#############################################################################
1070	# load/save/clean perl data associated with a map
1071
1072	*cf::mapsupport::on_clean = sub {
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		992
1085	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1086		994
1087	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1088		996
…		…
1101	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
1102		1010
1103	=cut	1011	=cut
1104		1012
1105	sub playerdir($) {	1013	sub playerdir($) {
1106	cf::localdir	1014	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1016	}
1112		1017
1113	sub path($) {	1018	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1020
1116	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
1117	}	1022	}
1118		1023
1119	sub find_active($) {	1024	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
1124		1029
1125	sub exists($) {	1030	sub exists($) {
1126	my ($login) = @_;	1031	my ($login) = @_;
1127		1032
1128	$cf::PLAYER{$login}	1033	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1034	or cf::sync_job { !aio_stat path $login }
1130	}	1035	}
1131		1036
1132	sub find($) {	1037	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1038	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1039	my $login = $_[0];
1135		1040
1136	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
1137		1042
1138	$cf::PLAYER{$_[0]} || do {	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
1139	my $pl = load_pl path $login	1051	my $pl = load_pl path $login
1140	or return;	1052	or return;
1141	$cf::PLAYER{$login} = $pl	1053	$cf::PLAYER{$login} = $pl
1142	}	1054	}
1143	}	1055	}
…		…
1180		1092
1181	=cut	1093	=cut
1182		1094
1183	sub quit_character {	1095	sub quit_character {
1184	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1185		1099
1186	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1102
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1110	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	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
1199	IO::AIO::aio_rmtree $temp;	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;
1200	}	1134	}
1201		1135
1202	=item cf::player::list_logins	1136	=item cf::player::list_logins
1203		1137
1204	Returns am arrayref of all valid playernames in the system, can take a	1138	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1139	while and may block, so not sync_job-capable, ever.
1206		1140
1207	=cut	1141	=cut
1208		1142
1209	sub list_logins {	1143	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1144	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1145	or return [];
1212		1146
1213	my @logins;	1147	my @logins;
1214		1148
1215	for my $login (@$dirs) {	1149	for my $login (@$dirs) {
…		…
1224	\@logins	1158	\@logins
1225	}	1159	}
1226		1160
1227	=item $player->maps	1161	=item $player->maps
1228		1162
1229	Returns an arrayref of cf::path's of all maps that are private for this	1163	Returns an arrayref of map paths that are private for this
1230	player. May block.	1164	player. May block.
1231		1165
1232	=cut	1166	=cut
1233		1167
1234	sub maps($) {	1168	sub maps($) {
1235	my ($pl) = @_;	1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1172
1237	my $files = aio_readdir playerdir $pl	1173	my $files = aio_readdir playerdir $pl
1238	or return;	1174	or return;
1239		1175
1240	my @paths;	1176	my @paths;
1241		1177
1242	for (@$files) {	1178	for (@$files) {
1243	utf8::decode $_;	1179	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1180	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1181	next unless /^$PATH_SEP/o;
1246		1182
1247	s/$PATH_SEP/\//g;	1183	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1184	}
1250		1185
1251	\@paths	1186	\@paths
1252	}	1187	}
1253		1188
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1255		1190
1256	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1257		1192
1258	=cut	1193	=cut
1259		1194
1260	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1261	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1262		1197
1263	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1264		1199
1265	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1266	}	1201	}
1267		1202
1268	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		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
		1242	}
1269		1243
1270	=back	1244	=back
1271
1272		1245
1273	=head3 cf::map	1246	=head3 cf::map
1274		1247
1275	=over 4	1248	=over 4
1276		1249
…		…
1279	package cf::map;	1252	package cf::map;
1280		1253
1281	use Fcntl;	1254	use Fcntl;
1282	use Coro::AIO;	1255	use Coro::AIO;
1283		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1284	our $MAX_RESET = 3600;	1261	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1262	our $DEFAULT_RESET = 3000;
1286		1263
1287	sub generate_random_map {	1264	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1267	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$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},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(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"
1304	}	1409	}
1305		1410
1306	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1307	# all maps in C++...	1412	# all maps in C++...
1308	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1310		1415
1311	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1313	}	1418	}
1314		1419
		1420	sub unlink_save {
		1421	my ($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
1315	sub try_load_header($) {	1428	sub load_header_from($) {
1316	my ($path) = @_;	1429	my ($self, $path) = @_;
1317		1430
1318	utf8::encode $path;	1431	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1320	or return;	1436	or return;
1321		1437
1322	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
1323	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1324		1484
1325	# for better error messages only, will be overwritten	1485	$self->default_region (cf::region::find_by_path $self->{path})
1326	$map->path ($path);	1486	unless $self->default_region;
1327		1487
1328	$map->load_header ($path)	1488	1
1329	or return;
1330
1331	$map->{load_path} = $path;
1332
1333	$map
1334	}	1489	}
1335		1490
1336	sub find;	1491	sub find;
1337	sub find {	1492	sub find {
1338	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1339		1494
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1496
1345	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1346		1498
1347	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1349		1501	my $map = new_from_path cf::map $path
1350	# do it the slow way
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1502	or return;
1369		1503
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1382		1505
1383	Coro::cede;	1506	$map->load_header
		1507	or return;
1384		1508
1385	if ($map->should_reset) {	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;
1386	$map->reset;	1512	$map->reset;
1387	undef $guard;	1513	undef $guard;
1388	$map = find $path	1514	return find $path;
1389	or return;
1390	}	1515	}
1391		1516
1392	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1393	}	1518	}
1394	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1395		1523
1396	sub load {	1524	sub load {
1397	my ($self) = @_;	1525	my ($self) = @_;
1398		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1399	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1401		1533
1402	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1403		1535
1404	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1405		1537
1406	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1407	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1408	or return;	1544	or return;
1409		1545
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	1547	if delete $self->{load_original};
1412		1548
1413	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	1550	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1416	$self->clear_unique_items;	1552	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1418	}	1554	}
1419	}	1555	}
1420		1556
1421	Coro::cede;	1557	Coro::cede;
1422
1423	# now do the right thing for maps	1558	# now do the right thing for maps
1424	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1435	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;
1436	$self->activate;	1571	$self->activate;
1437	}	1572	}
1438		1573
1439	Coro::cede;
1440
1441	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
		1575	}
		1576
		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	$self
1442	}	1587	}
1443		1588
1444	# find and load all maps in the 3x3 area around a map	1589	# find and load all maps in the 3x3 area around a map
1445	sub load_diag {	1590	sub load_diag {
1446	my ($map) = @_;	1591	my ($map) = @_;
…		…
1476		1621
1477	cf::sync_job { $map->load };	1622	cf::sync_job { $map->load };
1478	}	1623	}
1479		1624
1480	our %MAP_PREFETCH;	1625	our %MAP_PREFETCH;
1481	our $MAP_PREFETCHER = Coro::async {	1626	our $MAP_PREFETCHER = undef;
1482	while () {
1483	while (%MAP_PREFETCH) {
1484	my $key = each %MAP_PREFETCH
1485	or next;
1486	my $path = delete $MAP_PREFETCH{$key};
1487
1488	my $map = find $path
1489	or next;
1490	$map->load;
1491	}
1492	Coro::schedule;
1493	}
1494	};
1495		1627
1496	sub find_async {	1628	sub find_async {
1497	my ($path, $origin) = @_;	1629	my ($path, $origin) = @_;
1498		1630
1499	$path = new cf::path $path, $origin && $origin->path;	1631	$path = normalise $path, $origin && $origin->{path};
1500	my $key = $path->as_string;
1501		1632
1502	if (my $map = $cf::MAP{$key}) {	1633	if (my $map = $cf::MAP{$path}) {
1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504	}	1635	}
1505		1636
1506	$MAP_PREFETCH{$key} = $path;	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;
		1643	$map->load;
		1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
		1649	};
1507	$MAP_PREFETCHER->ready;	1650	$MAP_PREFETCHER->prio (6);
1508		1651
1509	()	1652	()
1510	}	1653	}
1511		1654
1512	sub save {	1655	sub save {
…		…
1516		1659
1517	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1518		1661
1519	return unless $self->dirty;	1662	return unless $self->dirty;
1520		1663
1521	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1523		1666
1524	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1525		1668
1526	return if $self->{deny_save};	1669	return if $self->{deny_save};
1527		1670
…		…
1530	cf::async {	1673	cf::async {
1531	$_->contr->save for $self->players;	1674	$_->contr->save for $self->players;
1532	};	1675	};
1533		1676
1534	if ($uniq) {	1677	if ($uniq) {
1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {	1680	} else {
1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1539	}	1682	}
1540	}	1683	}
1541		1684
1542	sub swap_out {	1685	sub swap_out {
1543	my ($self) = @_;	1686	my ($self) = @_;
…		…
1557		1700
1558	sub reset_at {	1701	sub reset_at {
1559	my ($self) = @_;	1702	my ($self) = @_;
1560		1703
1561	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1564		1707
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		1710
…		…
1572	my ($self) = @_;	1715	my ($self) = @_;
1573		1716
1574	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1575	}	1718	}
1576		1719
1577	sub unlink_save {
1578	my ($self) = @_;
1579
1580	utf8::encode (my $save = $self->{path}->save_path);
1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1583	}
1584
1585	sub rename {
1586	my ($self, $new_path) = @_;
1587
1588	$self->unlink_save;
1589
1590	delete $cf::MAP{$self->path};
1591	$self->{path} = new cf::path $new_path;
1592	$self->path ($self->{path}->as_string);
1593	$cf::MAP{$self->path} = $self;
1594
1595	$self->save;
1596	}
1597
1598	sub reset {	1720	sub reset {
1599	my ($self) = @_;	1721	my ($self) = @_;
1600		1722
1601	my $lock = cf::lock_acquire "map_data:" . $self->path;	1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		1724
1603	return if $self->players;	1725	return if $self->players;
1604	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1605		1727
1606	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1607		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
1608	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1609		1743
1610	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1611		1745
1612	$self->unlink_save;	1746	$self->unlink_save;
1613	$self->destroy;	1747	$self->destroy;
…		…
1616	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1617		1751
1618	sub nuke {	1752	sub nuke {
1619	my ($self) = @_;	1753	my ($self) = @_;
1620		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1621	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1622	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1623	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1624	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1625	}	1768	}
1626		1769
1627	sub customise_for {	1770	=item cf::map::unique_maps
1628	my ($map, $ob) = @_;
1629		1771
1630	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1632	}
1633		1774
1634	$map	1775	=cut
		1776
		1777	sub unique_maps() {
		1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
		1780
		1781	my @paths;
		1782
		1783	for (@$files) {
		1784	utf8::decode $_;
		1785	next if /\.pst$/;
		1786	next unless /^$PATH_SEP/o;
		1787
		1788	push @paths, cf::map::normalise $_;
		1789	}
		1790
		1791	\@paths
1635	}	1792	}
1636		1793
1637	package cf;	1794	package cf;
1638		1795
1639	=back	1796	=back
…		…
1711		1868
1712	=item $player_object->enter_link	1869	=item $player_object->enter_link
1713		1870
1714	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}>).
1715		1872
1716	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
1717	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1718		1875
		1876	Will never block.
		1877
1719	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1720		1879
1721	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	1883	fails, to the emergency map position.
1725		1884
1726	Might block.	1885	Might block.
1727		1886
1728	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($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	$LINK_MAP
		1897	}
1729		1898
1730	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1731	my ($self) = @_;	1900	my ($self) = @_;
1732		1901
1733	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1734		1903
1735	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		1905
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	1907	if $self->map;
1739		1908
1740	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	1910	}
1742		1911
1743	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1745		1914
…		…
1767	$map->load;	1936	$map->load;
1768	$map->load_diag;	1937	$map->load_diag;
1769		1938
1770	return unless $self->contr->active;	1939	return unless $self->contr->active;
1771	$self->activate_recursive;	1940	$self->activate_recursive;
		1941
		1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	1943	$self->enter_map ($map, $x, $y);
1773	}	1944	}
1774		1945
1775	cf::player->attach (	1946	cf::player->attach (
1776	on_logout => sub {	1947	on_logout => sub {
…		…
1789	# try to abort aborted map switching on player login :)	1960	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes	1961	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {	1962	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;	1963	$pl->ob->enter_link;
1793	(async {	1964	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,	1965	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "	1966	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",	1967	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);	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
1800	Coro::Timer::sleep 1;	1971	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;	1972	$pl->ob->leave_link;
1802	})->prio (2);	1973	})->prio (2);
1803	}	1974	}
1804	},	1975	},
…		…
1809	=cut	1980	=cut
1810		1981
1811	sub cf::object::player::goto {	1982	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y) = @_;
1813		1984
1814	$path = new cf::path $path;
1815	$path ne "/" or Carp::cluck ("oy");#d#
1816
1817	$self->enter_link;	1985	$self->enter_link;
1818		1986
1819	(async {	1987	(async {
		1988	my $map = eval {
1820	my $map = cf::map::find $path->as_string;	1989	my $map = cf::map::find $path;
1821	$map = $map->customise_for ($self) if $map;	1990	$map = $map->customise_for ($self) if $map;
1822		1991	$map
1823	# warn "entering ", $map->path, " at ($x, $y)\n"	1992	} or
1824	# if $map;
1825
1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1827		1994
1828	$self->leave_link ($map, $x, $y);	1995	$self->leave_link ($map, $x, $y);
1829	})->prio (1);	1996	})->prio (1);
1830	}	1997	}
1831		1998
…		…
1835		2002
1836	sub parse_random_map_params {	2003	sub parse_random_map_params {
1837	my ($spec) = @_;	2004	my ($spec) = @_;
1838		2005
1839	my $rmp = { # defaults	2006	my $rmp = { # defaults
1840	xsize => 10,	2007	xsize => (cf::rndm 15, 40),
1841	ysize => 10,	2008	ysize => (cf::rndm 15, 40),
		2009	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2010	#layout => string,
1842	};	2011	};
1843		2012
1844	for (split /\n/, $spec) {	2013	for (split /\n/, $spec) {
1845	my ($k, $v) = split /\s+/, $_, 2;	2014	my ($k, $v) = split /\s+/, $_, 2;
1846		2015
…		…
1850	$rmp	2019	$rmp
1851	}	2020	}
1852		2021
1853	sub prepare_random_map {	2022	sub prepare_random_map {
1854	my ($exit) = @_;	2023	my ($exit) = @_;
		2024
		2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
1855		2026
1856	# all this does is basically replace the /! path by	2027	# all this does is basically replace the /! path by
1857	# a new random map path (?random/...) with a seed	2028	# a new random map path (?random/...) with a seed
1858	# that depends on the exit object	2029	# that depends on the exit object
1859		2030
1860	my $rmp = parse_random_map_params $exit->msg;	2031	my $rmp = parse_random_map_params $exit->msg;
1861		2032
1862	if ($exit->map) {	2033	if ($exit->map) {
1863	$rmp->{region} = $exit->map->region_name;	2034	$rmp->{region} = $exit->region->name;
1864	$rmp->{origin_map} = $exit->map->path;	2035	$rmp->{origin_map} = $exit->map->path;
1865	$rmp->{origin_x} = $exit->x;	2036	$rmp->{origin_x} = $exit->x;
1866	$rmp->{origin_y} = $exit->y;	2037	$rmp->{origin_y} = $exit->y;
1867	}	2038	}
1868		2039
1869	$rmp->{random_seed} ||= $exit->random_seed;	2040	$rmp->{random_seed} ||= $exit->random_seed;
1870		2041
1871	my $data = cf::to_json $rmp;	2042	my $data = cf::to_json $rmp;
1872	my $md5 = Digest::MD5::md5_hex $data;	2043	my $md5 = Digest::MD5::md5_hex $data;
		2044	my $meta = "$RANDOMDIR/$md5.meta";
1873		2045
1874	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) {
1875	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;
1876		2050
1877	$exit->slaying ("?random/$md5");	2051	$exit->slaying ("?random/$md5");
1878	$exit->msg (undef);	2052	$exit->msg (undef);
1879	}	2053	}
1880	}	2054	}
1881		2055
1882	sub cf::object::player::enter_exit {	2056	sub cf::object::player::enter_exit {
1883	my ($self, $exit) = @_;	2057	my ($self, $exit) = @_;
1884		2058
1885	return unless $self->type == cf::PLAYER;	2059	return unless $self->type == cf::PLAYER;
		2060
		2061	if ($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;
1886		2071
1887	$self->enter_link;	2072	$self->enter_link;
1888		2073
1889	(async {	2074	(async {
1890	$self->deactivate_recursive; # just to be sure	2075	$self->deactivate_recursive; # just to be sure
1891	unless (eval {	2076	unless (eval {
1892	prepare_random_map $exit	2077	$self->goto ($slaying, $hp, $sp);
1893	if $exit->slaying eq "/!";
1894
1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1897		2078
1898	1;	2079	1;
1899	}) {	2080	}) {
1900	$self->message ("Something went wrong deep within the crossfire server. "	2081	$self->message ("Something went wrong deep within the crossfire server. "
1901	. "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. "
1902	. "Please report this to the dungeon master",	2083	. "Please report this to the dungeon master!",
1903	cf::NDI_UNIQUE | cf::NDI_RED);	2084	cf::NDI_UNIQUE | cf::NDI_RED);
1904		2085
1905	warn "ERROR in enter_exit: $@";	2086	warn "ERROR in enter_exit: $@";
1906	$self->leave_link;	2087	$self->leave_link;
1907	}	2088	}
1908	})->prio (1);	2089	})->prio (1);
…		…
1921		2102
1922	sub cf::client::send_drawinfo {	2103	sub cf::client::send_drawinfo {
1923	my ($self, $text, $flags) = @_;	2104	my ($self, $text, $flags) = @_;
1924		2105
1925	utf8::encode $text;	2106	utf8::encode $text;
1926	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1927	}	2108	}
1928		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	}
1929		2122
1930	=item $success = $client->query ($flags, "text", \&cb)	2123	=item $success = $client->query ($flags, "text", \&cb)
1931		2124
1932	Queues a query to the client, calling the given callback with	2125	Queues a query to the client, calling the given callback with
1933	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>,
…		…
1962	# get handled first	2155	# get handled first
1963	my $queue = delete $ns->{query_queue}	2156	my $queue = delete $ns->{query_queue}
1964	or return; # be conservative, not sure how that can happen, but we saw a crash here	2157	or return; # be conservative, not sure how that can happen, but we saw a crash here
1965		2158
1966	(shift @$queue)->[1]->($msg);	2159	(shift @$queue)->[1]->($msg);
		2160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1967		2161
1968	push @{ $ns->{query_queue} }, @$queue;	2162	push @{ $ns->{query_queue} }, @$queue;
1969		2163
1970	if (@{ $ns->{query_queue} } == @$queue) {	2164	if (@{ $ns->{query_queue} } == @$queue) {
1971	if (@$queue) {	2165	if (@$queue) {
…		…
2029		2223
2030	# here we export the classes and methods available to script code	2224	# here we export the classes and methods available to script code
2031		2225
2032	=pod	2226	=pod
2033		2227
2034	The following fucntions and emthods are available within a safe environment:	2228	The following functions and methods are available within a safe environment:
2035		2229
2036	cf::object contr pay_amount pay_player map	2230	cf::object contr pay_amount pay_player map
2037	cf::object::player player	2231	cf::object::player player
2038	cf::player peaceful	2232	cf::player peaceful
2039	cf::map trigger	2233	cf::map trigger
…		…
2124	#############################################################################	2318	#############################################################################
2125		2319
2126	=head2 EXTENSION DATABASE SUPPORT	2320	=head2 EXTENSION DATABASE SUPPORT
2127		2321
2128	Crossfire maintains a very simple database for extension use. It can	2322	Crossfire maintains a very simple database for extension use. It can
2129	currently store anything that can be serialised using Storable, which	2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2130	excludes objects.	2324	convert to/from binary).
2131		2325
2132	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
2133	using it, it should be unique.	2327	using it, it should be unique.
2134		2328
2135	=over 4	2329	=over 4
2136		2330
2137	=item $hashref = cf::db_get $family
2138
2139	Return a hashref for use by the extension C<$family>, which can be
2140	modified. After modifications, you have to call C<cf::db_dirty> or
2141	C<cf::db_sync>.
2142
2143	=item $value = cf::db_get $family => $key	2331	=item $value = cf::db_get $family => $key
2144		2332
2145	Returns a single value from the database	2333	Returns a single value from the database.
2146
2147	=item cf::db_put $family => $hashref
2148
2149	Stores the given family hashref into the database. Updates are delayed, if
2150	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2151		2334
2152	=item cf::db_put $family => $key => $value	2335	=item cf::db_put $family => $key => $value
2153		2336
2154	Stores the given C<$value> in the family hash. Updates are delayed, if you	2337	Stores the given C<$value> in the family.
2155	want the data to be synced to disk immediately, use C<cf::db_sync>.
2156
2157	=item cf::db_dirty
2158
2159	Marks the database as dirty, to be updated at a later time.
2160
2161	=item cf::db_sync
2162
2163	Immediately write the database to disk I<if it is dirty>.
2164		2338
2165	=cut	2339	=cut
2166		2340
2167	our $DB;	2341	our $DB;
2168		2342
2169	{	2343	sub db_init {
2170	my $path = cf::localdir . "/database.pst";	2344	unless ($DB) {
		2345	$DB = BDB::db_create $DB_ENV;
2171		2346
2172	sub db_load() {	2347	cf::sync_job {
2173	$DB = stat $path ? Storable::retrieve $path : { };	2348	eval {
2174	}	2349	$DB->set_flags (BDB::CHKSUM);
2175		2350
2176	my $pid;	2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2177		2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2178	sub db_save() {	2353	cf::cleanup "db_open(db): $!" if $!;
2179	waitpid $pid, 0 if $pid;	2354	};
2180	if (0 == ($pid = fork)) {	2355	cf::cleanup "db_open(db): $@" if $@;
2181	$DB->{_meta}{version} = 1;
2182	Storable::nstore $DB, "$path~";
2183	rename "$path~", $path;
2184	cf::_exit 0 if defined $pid;
2185	}	2356	};
2186	}
2187
2188	my $dirty;
2189
2190	sub db_sync() {
2191	db_save if $dirty;
2192	undef $dirty;
2193	}
2194
2195	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2196	db_sync;
2197	});	2357	}
		2358	}
2198		2359
2199	sub db_dirty() {
2200	$dirty = 1;
2201	$idle->start;
2202	}
2203
2204	sub db_get($;$) {	2360	sub db_get($$) {
2205	@_ >= 2	2361	my $key = "$_[0]/$_[1]";
2206	? $DB->{$_[0]}{$_[1]}
2207	: ($DB->{$_[0]} ||= { })
2208	}
2209		2362
		2363	cf::sync_job {
		2364	BDB::db_get $DB, undef, $key, my $data;
		2365
		2366	$! ? ()
		2367	: $data
		2368	}
		2369	}
		2370
2210	sub db_put($$;$) {	2371	sub db_put($$$) {
2211	if (@_ >= 3) {	2372	BDB::dbreq_pri 4;
2212	$DB->{$_[0]}{$_[1]} = $_[2];	2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2213	} else {	2374	}
2214	$DB->{$_[0]} = $_[1];
2215	}
2216	db_dirty;
2217	}
2218		2375
2219	cf::global->attach (	2376	=item cf::cache $id => [$paths...], $processversion => $process
2220	prio => 10000,	2377
2221	on_cleanup => sub {	2378	Generic caching function that returns the value of the resource $id,
2222	db_sync;	2379	caching and regenerating as required.
		2380
		2381	This function can block.
		2382
		2383	=cut
		2384
		2385	sub cache {
		2386	my ($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 "$src->[$_]: $!";
2223	},	2408	}
2224	);	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"
2225	}	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
2226		2491
2227	#############################################################################	2492	#############################################################################
2228	# 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	}
2229		2581
2230	sub cfg_load {	2582	sub cfg_load {
2231	open my $fh, "<:utf8", cf::confdir . "/config"	2583	open my $fh, "<:utf8", "$CONFDIR/config"
2232	or return;	2584	or return;
2233		2585
2234	local $/;	2586	local $/;
2235	*CFG = YAML::Syck::Load <$fh>;	2587	*CFG = YAML::Syck::Load <$fh>;
2236		2588
…		…
2250		2602
2251	sub main {	2603	sub main {
2252	# we must not ever block the main coroutine	2604	# we must not ever block the main coroutine
2253	local $Coro::idle = sub {	2605	local $Coro::idle = sub {
2254	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#
		2607	(async {
2255	async { Event::one_event };	2608	Event::one_event;
		2609	})->prio (Coro::PRIO_MAX);
2256	};	2610	};
2257		2611
2258	cfg_load;	2612	cfg_load;
2259	db_load;	2613	db_init;
2260	load_extensions;	2614	load_extensions;
		2615
		2616	$TICK_WATCHER->start;
2261	Event::loop;	2617	Event::loop;
2262	}	2618	}
2263		2619
2264	#############################################################################	2620	#############################################################################
2265	# initialisation and cleanup	2621	# initialisation and cleanup
2266		2622
2267	# install some emergency cleanup handlers	2623	# install some emergency cleanup handlers
2268	BEGIN {	2624	BEGIN {
2269	for my $signal (qw(INT HUP TERM)) {	2625	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	2626	Event->signal (
		2627	reentrant => 0,
2271	data => WF_AUTOCANCEL,	2628	data => WF_AUTOCANCEL,
2272	signal => $signal,	2629	signal => $signal,
		2630	prio => 0,
2273	cb => sub {	2631	cb => sub {
2274	cf::cleanup "SIG$signal";	2632	cf::cleanup "SIG$signal";
2275	},	2633	},
2276	);	2634	);
2277	}	2635	}
2278	}	2636	}
…		…
2283	warn "enter emergency perl save\n";	2641	warn "enter emergency perl save\n";
2284		2642
2285	cf::sync_job {	2643	cf::sync_job {
2286	# use a peculiar iteration method to avoid tripping on perl	2644	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	2645	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/Destroyed asynchronously.	2646	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	2647	warn "begin emergency player save\n";
2290	for my $login (keys %cf::PLAYER) {	2648	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	2649	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	2650	$pl->valid or next;
2293	$pl->save;	2651	$pl->save;
…		…
2299	my $map = $cf::MAP{$path} or next;	2657	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	2658	$map->valid or next;
2301	$map->save;	2659	$map->save;
2302	}	2660	}
2303	warn "end emergency map save\n";	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";
2304	};	2666	};
2305		2667
2306	warn "leave emergency perl save\n";	2668	warn "leave emergency perl save\n";
2307	}	2669	}
2308		2670
		2671	sub post_cleanup {
		2672	my ($make_core) = @_;
		2673
		2674	warn Carp::longmess "post_cleanup backtrace"
		2675	if $make_core;
		2676	}
		2677
2309	sub reload() {	2678	sub do_reload_perl() {
2310	# can/must only be called in main	2679	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	2680	if ($Coro::current != $Coro::main) {
2312	warn "can only reload from main coroutine\n";	2681	warn "can only reload from main coroutine";
2313	return;	2682	return;
2314	}	2683	}
2315		2684
2316	warn "reloading...";	2685	warn "reloading...";
2317		2686
2318	my $guard = freeze_mainloop;	2687	warn "entering sync_job";
		2688
		2689	cf::sync_job {
		2690	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	2691	cf::emergency_save;
		2692	cf::write_runtime; # external watchdog should not bark
2320		2693
2321	eval {	2694	warn "syncing database to disk";
		2695	BDB::db_env_txn_checkpoint $DB_ENV;
		2696
2322	# 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
2323		2698
2324	# cancel all watchers	2699	warn "cancelling all WF_AUTOCANCEL watchers";
2325	for (Event::all_watchers) {	2700	for (Event::all_watchers) {
2326	$_->cancel if $_->data & WF_AUTOCANCEL;	2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2327	}	2702	}
2328		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
2329	# cancel all extension coros	2715	warn "cancelling all extension coros";
2330	$_->cancel for values %EXT_CORO;	2716	$_->cancel for values %EXT_CORO;
2331	%EXT_CORO = ();	2717	%EXT_CORO = ();
2332		2718
2333	# unload all extensions	2719	warn "removing commands";
2334	for (@exts) {	2720	%COMMAND = ();
		2721
		2722	warn "removing ext commands";
		2723	%EXTCMD = ();
		2724
		2725	warn "unloading/nuking all extensions";
		2726	for my $pkg (@EXTS) {
2335	warn "unloading <$_>";	2727	warn "... unloading $pkg";
2336	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: $@";
2337	}	2734	}
2338		2735
		2736	warn "... nuking $pkg";
		2737	Symbol::delete_package $pkg;
		2738	}
		2739
2339	# unload all modules loaded from $LIBDIR	2740	warn "unloading all perl modules loaded from $LIBDIR";
2340	while (my ($k, $v) = each %INC) {	2741	while (my ($k, $v) = each %INC) {
2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2342		2743
2343	warn "removing <$k>";	2744	warn "... unloading $k";
2344	delete $INC{$k};	2745	delete $INC{$k};
2345		2746
2346	$k =~ s/\.pm$//;	2747	$k =~ s/\.pm$//;
2347	$k =~ s/\//::/g;	2748	$k =~ s/\//::/g;
2348		2749
…		…
2351	}	2752	}
2352		2753
2353	Symbol::delete_package $k;	2754	Symbol::delete_package $k;
2354	}	2755	}
2355		2756
2356	# sync database to disk
2357	cf::db_sync;
2358	IO::AIO::flush;
2359
2360	# get rid of safe::, as good as possible	2757	warn "getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	2758	Symbol::delete_package "safe::$_"
2362	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);
2363		2760
2364	# remove register_script_function callbacks
2365	# TODO
2366
2367	# unload cf.pm "a bit"	2761	warn "unloading cf.pm \"a bit\"";
2368	delete $INC{"cf.pm"};	2762	delete $INC{"cf.pm"};
		2763	delete $INC{"cf/pod.pm"};
2369		2764
2370	# don't, removes xs symbols, too,	2765	# don't, removes xs symbols, too,
2371	# and global variables created in xs	2766	# and global variables created in xs
2372	#Symbol::delete_package __PACKAGE__;	2767	#Symbol::delete_package __PACKAGE__;
2373		2768
2374	# reload cf.pm	2769	warn "unload completed, starting to reload now";
		2770
2375	warn "reloading cf.pm";	2771	warn "reloading cf.pm";
2376	require cf;	2772	require cf;
2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2378		2774
2379	# load config and database again	2775	warn "loading config and database again";
2380	cf::cfg_load;	2776	cf::cfg_load;
2381	cf::db_load;
2382		2777
2383	# load extensions
2384	warn "load extensions";	2778	warn "loading extensions";
2385	cf::load_extensions;	2779	cf::load_extensions;
2386		2780
2387	# reattach attachments to objects	2781	warn "reattaching attachments to objects/players";
2388	warn "reattach";	2782	_global_reattach; # objects, sockets
2389	_global_reattach;	2783	warn "reattaching attachments to maps";
2390	reattach $_ for values %MAP;	2784	reattach $_ for values %MAP;
2391	};	2785	warn "reattaching attachments to players";
		2786	reattach $_ for values %PLAYER;
2392		2787
2393	if ($@) {	2788	warn "leaving sync_job";
		2789
		2790	1
		2791	} or do {
2394	warn $@;	2792	warn $@;
2395	warn "error while reloading, exiting.";	2793	warn "error while reloading, exiting.";
2396	exit 1;	2794	exit 1;
2397	}	2795	};
2398		2796
2399	warn "reloaded successfully";	2797	warn "reloaded";
2400	};	2798	};
2401		2799
2402	#############################################################################	2800	our $RELOAD_WATCHER; # used only during reload
2403		2801
2404	unless ($LINK_MAP) {	2802	sub reload_perl() {
2405	$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.
2406		2805
2407	$LINK_MAP->width (41);	2806	$RELOAD_WATCHER ||= Event->timer (
2408	$LINK_MAP->height (41);	2807	reentrant => 0,
2409	$LINK_MAP->alloc;
2410	$LINK_MAP->path ("{link}");
2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2413
2414	# dirty hack because... archetypes are not yet loaded
2415	Event->timer (
2416	after => 10,	2808	after => 0,
		2809	data => WF_AUTOCANCEL,
2417	cb => sub {	2810	cb => sub {
2418	$_[0]->w->cancel;	2811	do_reload_perl;
2419		2812	undef $RELOAD_WATCHER;
2420	# provide some exits "home"
2421	my $exit = cf::object::new "exit";
2422
2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2426
2427	$LINK_MAP->insert ($exit->clone, 19, 19);
2428	$LINK_MAP->insert ($exit->clone, 19, 20);
2429	$LINK_MAP->insert ($exit->clone, 19, 21);
2430	$LINK_MAP->insert ($exit->clone, 20, 19);
2431	$LINK_MAP->insert ($exit->clone, 20, 21);
2432	$LINK_MAP->insert ($exit->clone, 21, 19);
2433	$LINK_MAP->insert ($exit->clone, 21, 20);
2434	$LINK_MAP->insert ($exit->clone, 21, 21);
2435
2436	$exit->destroy;
2437	});	2813	},
2438		2814	);
2439	$LINK_MAP->{deny_save} = 1;
2440	$LINK_MAP->{deny_reset} = 1;
2441
2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2443	}	2815	}
2444
2445	register "<global>", __PACKAGE__;
2446		2816
2447	register_command "reload" => sub {	2817	register_command "reload" => sub {
2448	my ($who, $arg) = @_;	2818	my ($who, $arg) = @_;
2449		2819
2450	if ($who->flag (FLAG_WIZ)) {	2820	if ($who->flag (FLAG_WIZ)) {
2451	$who->message ("start of reload.");
2452	reload;
2453	$who->message ("end of reload.");	2821	$who->message ("reloading server.");
		2822	async { reload_perl };
2454	}	2823	}
2455	};	2824	};
2456		2825
2457	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	}
2458		2850
2459	$TICK_WATCHER = Event->timer (	2851	$TICK_WATCHER = Event->timer (
2460	reentrant => 0,	2852	reentrant => 0,
		2853	parked => 1,
2461	prio => 0,	2854	prio => 0,
2462	at => $NEXT_TICK || $TICK,	2855	at => $NEXT_TICK || $TICK,
2463	data => WF_AUTOCANCEL,	2856	data => WF_AUTOCANCEL,
2464	cb => sub {	2857	cb => sub {
		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
2465	cf::server_tick; # one server iteration	2866	cf::server_tick; # one server iteration
		2867
2466	$RUNTIME += $TICK;	2868	$RUNTIME += $TICK;
2467	$NEXT_TICK += $TICK;	2869	$NEXT_TICK += $TICK;
2468		2870
2469	$WAIT_FOR_TICK->broadcast;	2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	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;
2471		2890
2472	# 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
2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2474		2893
2475	$TICK_WATCHER->at ($NEXT_TICK);	2894	$TICK_WATCHER->at ($NEXT_TICK);
2476	$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
2477	},	2903	},
2478	);	2904	);
2479		2905
		2906	{
2480	IO::AIO::max_poll_time $TICK * 0.2;	2907	BDB::max_poll_time $TICK * 0.1;
2481		2908	$BDB_POLL_WATCHER = Event->io (
2482	Event->io (	2909	reentrant => 0,
2483	fd => IO::AIO::poll_fileno,	2910	fd => BDB::poll_fileno,
2484	poll => 'r',	2911	poll => 'r',
2485	prio => 5,	2912	prio => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => \&IO::AIO::poll_cb,
2488	);
2489
2490	Event->timer (
2491	data => WF_AUTOCANCEL,	2913	data => WF_AUTOCANCEL,
2492	after => 0,	2914	cb => \&BDB::poll_cb,
2493	interval => 10,	2915	);
2494	cb => sub {	2916	BDB::min_parallel 8;
2495	(Coro::unblock_sub {	2917
2496	write_runtime	2918	BDB::set_sync_prepare {
2497	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 $@;
2498	})->();	2952	};
2499	},	2953	}
2500	);	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;
2501		3011
2502	END { cf::emergency_save }	3012	END { cf::emergency_save }
2503		3013
2504	1	3014	1
2505		3015

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