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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.308 by root, Mon Jul 16 14:09:40 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 JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	94
55	our %EXT_CORO;	95	# used to convert map paths into valid unix filenames by replacing / by ∕
		96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
56		101
57	binmode STDOUT;	102	binmode STDOUT;
58	binmode STDERR;	103	binmode STDERR;
59		104
60	# read virtual server time, if available	105	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
65	}	110	}
66		111
67	mkdir cf::localdir;	112	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		114
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
76		118
77	#############################################################################	119	#############################################################################
78		120
79	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
80		122
…		…
87	=item $cf::RUNTIME	129	=item $cf::RUNTIME
88		130
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	132	every server tick.
91		133
92	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		137
94	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
96		142
97	=item $cf::NOW	143	=item $cf::NOW
98		144
99	The time of the last (current) server tick.	145	The time of the last (current) server tick.
100		146
101	=item $cf::TICK	147	=item $cf::TICK
102		148
103	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
104		160
105	=item %cf::CFG	161	=item %cf::CFG
106		162
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
109		171
110	=back	172	=back
111		173
112	=cut	174	=cut
113		175
114	BEGIN {	176	BEGIN {
115	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	178	my $msg = join "", @_;
117	utf8::encode $msg;
118		179
119	$msg .= "\n"	180	$msg .= "\n"
120	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
121		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	186	LOG llevError, $msg;
123	};	187	};
124	}	188	}
125		189
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		197
133	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	199	# within the Safe compartment.
135	for my $pkg (qw(	200	for my $pkg (qw(
136	cf::global cf::attachable	201	cf::global cf::attachable
…		…
145		210
146	$Event::DIED = sub {	211	$Event::DIED = sub {
147	warn "error in event callback: @_";	212	warn "error in event callback: @_";
148	};	213	};
149		214
150	my %ext_pkg;	215	#############################################################################
151	my @exts;
152	my @hook;
153		216
154	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
155		218
156	=over 4	219	=over 4
157		220
158	=cut	221	=item dumpval $ref
159		222
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	223	=cut
		224
		225	sub dumpval {
		226	eval {
		227	local $SIG{__DIE__};
		228	my $d;
		229	if (1) {
		230	$d = new Data::Dumper([$_[0]], ["*var"]);
		231	$d->Terse(1);
		232	$d->Indent(2);
		233	$d->Quotekeys(0);
		234	$d->Useqq(1);
		235	#$d->Bless(...);
		236	$d->Seen($_[1]) if @_ > 1;
		237	$d = $d->Dump();
		238	}
		239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		240	$d
		241	} || "[unable to dump $_[0]: '$@']";
		242	}
161		243
162	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
163		245
164	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
165		247
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
174		249
175	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
176		251
177	=cut	252	=cut
178		253
179	sub to_json($) {	254	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
181	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
183		258
184	=item cf::lock_wait $string	259	=item cf::lock_wait $string
185		260
186	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
187		262
…		…
193	returned.	268	returned.
194		269
195	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
197		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
198	=cut	277	=cut
199		278
200	our %LOCK;	279	our %LOCK;
201		280
202	sub lock_wait($) {	281	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
223	}	302	}
224	}	303	}
225		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
226	sub freeze_mainloop {	311	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
228		313
229	my $guard = Coro::guard { $TICK_WATCHER->start };	314	my $guard = Coro::guard {
		315	$TICK_WATCHER->start;
		316	};
230	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
231	$guard	318	$guard
232	}	319	}
233		320
234	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
…		…
241		328
242	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
243		330
244	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
245		332
246	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
249		337
250	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
253	fast or be very important.	341	fast or be very important.
…		…
256		344
257	sub sync_job(&) {	345	sub sync_job(&) {
258	my ($job) = @_;	346	my ($job) = @_;
259		347
260	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
261	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
263		353
264	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
273	warn $@ if $@;	363	warn $@ if $@;
274	undef $busy;	364	undef $busy;
275	})->prio (Coro::PRIO_MAX);	365	})->prio (Coro::PRIO_MAX);
276		366
277	while ($busy) {	367	while ($busy) {
278	unless (Coro::cede) {	368	Coro::cede or Event::one_event;
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;
281	}	369	}
282	}	370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
283		377
284	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
285	} else {	379	} else {
286	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
287		381
…		…
289	}	383	}
290	}	384	}
291		385
292	=item $coro = cf::async_ext { BLOCK }	386	=item $coro = cf::async_ext { BLOCK }
293		387
294	Like async, but this coro is automcatially being canceled when the	388	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	389	extension calling this is being unloaded.
296		390
297	=cut	391	=cut
298		392
299	sub async_ext(&) {	393	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
308		402
309	$coro	403	$coro
310	}	404	}
311		405
312	sub write_runtime {	406	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		407
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
316	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
317		412
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		414
322	aio_fsync $fh	415	sub _store_scalar {
323	and return;	416	open my $fh, ">", \my $buf
324		417	or die "fork_call: cannot open fh-to-buf in child : $!";
		418	Storable::store_fd $_[0], $fh;
325	close $fh	419	close $fh;
326	or return;
327		420
328	aio_rename "$runtime~", $runtime	421	$buf
329	and return;	422	}
330		423
		424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
331	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
		582	}
		583
		584	=item cf::datalog type => key => value, ...
		585
		586	Log a datalog packet of the given type with the given key-value pairs.
		587
		588	=cut
		589
		590	sub datalog($@) {
		591	my ($type, %kv) = @_;
		592	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	593	}
333		594
334	=back	595	=back
335		596
336	=cut	597	=cut
337
338	#############################################################################
339
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457		598
458	#############################################################################	599	#############################################################################
459		600
460	=head2 ATTACHABLE OBJECTS	601	=head2 ATTACHABLE OBJECTS
461		602
…		…
463	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
465		606
466	In the following description, CLASS can be any of C<global>, C<object>	607	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	609	Crossfire TRT).
469		610
470	=over 4	611	=over 4
471		612
472	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
473		614
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	728	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	729	our @CB_MAP = ();
589		730
590	my %attachment;	731	my %attachment;
591		732
		733	sub cf::attachable::thawer_merge {
		734	# simply override everything except _meta
		735	local $_[0]{_meta};
		736	%{$_[0]} = %{$_[1]};
		737	}
		738
592	sub _attach_cb($$$$) {	739	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	740	my ($registry, $event, $prio, $cb) = @_;
594		741
595	use sort 'stable';	742	use sort 'stable';
596		743
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
631		778
632	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		783
637	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	785	my $pkg = shift @arg;
639		786
640	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
670	}	817	}
671		818
672	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
673	} else {	820	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	822	}
676		823
677	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
678	}	825	}
679		826
…		…
681	if (ref $_[0]) {	828	if (ref $_[0]) {
682	_object_attach @_;	829	_object_attach @_;
683	} else {	830	} else {
684	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
685	}	832	}
		833	_recalc_want;
686	};	834	};
687		835
688	# all those should be optimised	836	# all those should be optimised
689	sub cf::attachable::detach {	837	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
694	reattach ($obj);	842	reattach ($obj);
695	} else {	843	} else {
696	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
697	}	845	}
		846	_recalc_want;
698	};	847	};
699		848
700	sub cf::attachable::attached {	849	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
702		851
…		…
767	# object support	916	# object support
768		917
769	sub reattach {	918	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	919	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	920	my ($obj) = @_;
		921
		922	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		923
773	my $registry = $obj->registry;	924	my $registry = $obj->registry;
774		925
775	@$registry = ();	926	@$registry = ();
776		927
…		…
823	$filename, length $$rdata, scalar @$objs;	974	$filename, length $$rdata, scalar @$objs;
824		975
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	976	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	977	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	978	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	979	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	980	close $fh;
830		981
831	if (@$objs) {	982	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	983	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	984	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	985	my $data = Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	986	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	987	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	988	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	989	aio_rename "$filename.pst~", "$filename.pst";
839	}	990	}
840	} else {	991	} else {
841	aio_unlink "$filename.pst";	992	aio_unlink "$filename.pst";
…		…
873	or return;	1024	or return;
874	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
875	}	1026	}
876		1027
877	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
879	return ($data, $av);	1030	return ($data, $av);
880	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
881		1038
882	#############################################################################	1039	#############################################################################
883	# command handling &c	1040	# command handling &c
884		1041
885	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1056	}
900		1057
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1059
903	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
904		1065
905	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
906	called.	1067	called.
907		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
908	=cut	1080	=cut
909		1081
910	sub register_extcmd {	1082	sub register_extcmd {
911	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
912		1084
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
917	}	1092	}
918		1093
919	cf::player->attach (	1094	cf::player->attach (
920	on_command => sub {	1095	on_command => sub {
921	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
930	cf::override;	1105	cf::override;
931	},	1106	},
932	on_extcmd => sub {	1107	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
934		1109
935	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1111
937	if (ref $msg) {	1112	if (ref $msg) {
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
940	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
941	}	1116	}
942	}	1117	}
943	} else {	1118	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1119	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
946		1121
947	cf::override;	1122	cf::override;
948	},	1123	},
949	);	1124	);
950		1125
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
		1130	for my $path (<$LIBDIR/*.ext>) {
		1131	next unless -r $path;
		1132
		1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
		1190	}
		1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
		1196	};
		1197	}
		1198
		1199	#############################################################################
		1200
		1201	=back
		1202
		1203	=head2 CORE EXTENSIONS
		1204
		1205	Functions and methods that extend core crossfire objects.
		1206
		1207	=cut
		1208
		1209	package cf::player;
		1210
		1211	use Coro::AIO;
		1212
		1213	=head3 cf::player
		1214
		1215	=over 4
		1216
		1217	=item cf::player::find $login
		1218
		1219	Returns the given player object, loading it if necessary (might block).
		1220
		1221	=cut
		1222
		1223	sub playerdir($) {
		1224	"$PLAYERDIR/"
		1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1226	}
		1227
		1228	sub path($) {
		1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1230
		1231	(playerdir $login) . "/playerdata"
		1232	}
		1233
		1234	sub find_active($) {
		1235	$cf::PLAYER{$_[0]}
		1236	and $cf::PLAYER{$_[0]}->active
		1237	and $cf::PLAYER{$_[0]}
		1238	}
		1239
		1240	sub exists($) {
		1241	my ($login) = @_;
		1242
		1243	$cf::PLAYER{$login}
		1244	or cf::sync_job { !aio_stat path $login }
		1245	}
		1246
		1247	sub find($) {
		1248	return $cf::PLAYER{$_[0]} || do {
		1249	my $login = $_[0];
		1250
		1251	my $guard = cf::lock_acquire "user_find:$login";
		1252
		1253	$cf::PLAYER{$_[0]} || do {
		1254	# rename old playerfiles to new ones
		1255	#TODO: remove when no longer required
		1256	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1257	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1258	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1259	aio_unlink +(playerdir $login) . "/$login.pl";
		1260
		1261	my $pl = load_pl path $login
		1262	or return;
		1263	$cf::PLAYER{$login} = $pl
		1264	}
		1265	}
		1266	}
		1267
		1268	sub save($) {
		1269	my ($pl) = @_;
		1270
		1271	return if $pl->{deny_save};
		1272
		1273	my $path = path $pl;
		1274	my $guard = cf::lock_acquire "user_save:$path";
		1275
		1276	return if $pl->{deny_save};
		1277
		1278	aio_mkdir playerdir $pl, 0770;
		1279	$pl->{last_save} = $cf::RUNTIME;
		1280
		1281	$pl->save_pl ($path);
		1282	Coro::cede;
		1283	}
		1284
		1285	sub new($) {
		1286	my ($login) = @_;
		1287
		1288	my $self = create;
		1289
		1290	$self->ob->name ($login);
		1291	$self->{deny_save} = 1;
		1292
		1293	$cf::PLAYER{$login} = $self;
		1294
		1295	$self
		1296	}
		1297
		1298	=item $pl->quit_character
		1299
		1300	Nukes the player without looking back. If logged in, the connection will
		1301	be destroyed. May block for a long time.
		1302
		1303	=cut
		1304
		1305	sub quit_character {
		1306	my ($pl) = @_;
		1307
		1308	my $name = $pl->ob->name;
		1309
		1310	$pl->{deny_save} = 1;
		1311	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1312
		1313	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1314	$pl->deactivate;
		1315	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1316	$pl->ns->destroy if $pl->ns;
		1317
		1318	my $path = playerdir $pl;
		1319	my $temp = "$path~$cf::RUNTIME~deleting~";
		1320	aio_rename $path, $temp;
		1321	delete $cf::PLAYER{$pl->ob->name};
		1322	$pl->destroy;
		1323
		1324	my $prefix = qr<^~\Q$name\E/>;
		1325
		1326	# nuke player maps
		1327	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1328
		1329	IO::AIO::aio_rmtree $temp;
		1330	}
		1331
		1332	=item $pl->kick
		1333
		1334	Kicks a player out of the game. This destroys the connection.
		1335
		1336	=cut
		1337
		1338	sub kick {
		1339	my ($pl, $kicker) = @_;
		1340
		1341	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1342	$pl->killer ("kicked");
		1343	$pl->ns->destroy;
		1344	}
		1345
		1346	=item cf::player::list_logins
		1347
		1348	Returns am arrayref of all valid playernames in the system, can take a
		1349	while and may block, so not sync_job-capable, ever.
		1350
		1351	=cut
		1352
		1353	sub list_logins {
		1354	my $dirs = aio_readdir $PLAYERDIR
		1355	or return [];
		1356
		1357	my @logins;
		1358
		1359	for my $login (@$dirs) {
		1360	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1361	aio_read $fh, 0, 512, my $buf, 0 or next;
		1362	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1363
		1364	utf8::decode $login;
		1365	push @logins, $login;
		1366	}
		1367
		1368	\@logins
		1369	}
		1370
		1371	=item $player->maps
		1372
		1373	Returns an arrayref of map paths that are private for this
		1374	player. May block.
		1375
		1376	=cut
		1377
		1378	sub maps($) {
		1379	my ($pl) = @_;
		1380
		1381	$pl = ref $pl ? $pl->ob->name : $pl;
		1382
		1383	my $files = aio_readdir playerdir $pl
		1384	or return;
		1385
		1386	my @paths;
		1387
		1388	for (@$files) {
		1389	utf8::decode $_;
		1390	next if /\.(?:pl|pst)$/;
		1391	next unless /^$PATH_SEP/o;
		1392
		1393	push @paths, cf::map::normalise "~$pl/$_";
		1394	}
		1395
		1396	\@paths
		1397	}
		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&amp;/g;
		1410	s/(?<![BIUGH])</&lt;/g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male|female> tags
		1420	|| s{G<([^>|]*)\|([^>]*)>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	|| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
		1449	=item $player->ext_reply ($msgid, %msg)
		1450
		1451	Sends an ext reply to the player.
		1452
		1453	=cut
		1454
		1455	sub ext_reply($$%) {
		1456	my ($self, $id, %msg) = @_;
		1457
		1458	$msg{msgid} = $id;
		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1460	}
		1461
		1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
958	my ($path) = @_;	1489	my ($path) = @_;
959		1490
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1491	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1492
966	warn "loading '$path' into '$pkg'\n";	1493	for my $region (list) {
967		1494	if ($region->{match} && $path =~ $region->{match}) {
968	open my $fh, "<:utf8", $path	1495	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1496	if $region->specificity > $specificity;
970		1497	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1498	}
1000		1499
1001	# remove commands	1500	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1501	}
1107		1502
1108	=back	1503	=back
1109
1110		1504
1111	=head3 cf::map	1505	=head3 cf::map
1112		1506
1113	=over 4	1507	=over 4
1114		1508
…		…
1117	package cf::map;	1511	package cf::map;
1118		1512
1119	use Fcntl;	1513	use Fcntl;
1120	use Coro::AIO;	1514	use Coro::AIO;
1121		1515
		1516	use overload
		1517	'""' => \&as_string,
		1518	fallback => 1;
		1519
1122	our $MAX_RESET = 3600;	1520	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1521	our $DEFAULT_RESET = 3000;
1124		1522
1125	sub generate_random_map {	1523	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1524	my ($self, $rmp) = @_;
1127
1128	# mit "rum" bekleckern, nicht	1525	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1526	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1527	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1528	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1529	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1530	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1531	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1532	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1533	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1534	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1535	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1537	(cf::region::find $rmp->{region}), $rmp->{custom}
		1538	)
		1539	}
		1540
		1541	=item cf::map->register ($regex, $prio)
		1542
		1543	Register a handler for the map path matching the given regex at the
		1544	givne priority (higher is better, built-in handlers have priority 0, the
		1545	default).
		1546
		1547	=cut
		1548
		1549	sub register {
		1550	my (undef, $regex, $prio) = @_;
		1551	my $pkg = caller;
		1552
		1553	no strict;
		1554	push @{"$pkg\::ISA"}, __PACKAGE__;
		1555
		1556	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1557	}
		1558
		1559	# also paths starting with '/'
		1560	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1561
		1562	sub thawer_merge {
		1563	my ($self, $merge) = @_;
		1564
		1565	# we have to keep some variables in memory intact
		1566	local $self->{path};
		1567	local $self->{load_path};
		1568
		1569	$self->SUPER::thawer_merge ($merge);
		1570	}
		1571
		1572	sub normalise {
		1573	my ($path, $base) = @_;
		1574
		1575	$path = "$path"; # make sure its a string
		1576
		1577	$path =~ s/\.map$//;
		1578
		1579	# map plan:
		1580	#
		1581	# /! non-realised random map exit (special hack!)
		1582	# {... are special paths that are not being touched
		1583	# ?xxx/... are special absolute paths
		1584	# ?random/... random maps
		1585	# /... normal maps
		1586	# ~user/... per-player map of a specific user
		1587
		1588	$path =~ s/$PATH_SEP/\//go;
		1589
		1590	# treat it as relative path if it starts with
		1591	# something that looks reasonable
		1592	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1593	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1594
		1595	$base =~ s{[^/]+/?$}{};
		1596	$path = "$base/$path";
		1597	}
		1598
		1599	for ($path) {
		1600	redo if s{//}{/};
		1601	redo if s{/\.?/}{/};
		1602	redo if s{/[^/]+/\.\./}{/};
		1603	}
		1604
		1605	$path
		1606	}
		1607
		1608	sub new_from_path {
		1609	my (undef, $path, $base) = @_;
		1610
		1611	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1612
		1613	$path = normalise $path, $base;
		1614
		1615	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1616	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1617	my $self = bless cf::map::new, $pkg;
		1618	$self->{path} = $path; $self->path ($path);
		1619	$self->init; # pass $1 etc.
		1620	return $self;
		1621	}
		1622	}
		1623
		1624	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1625	()
		1626	}
		1627
		1628	sub init {
		1629	my ($self) = @_;
		1630
		1631	$self
		1632	}
		1633
		1634	sub as_string {
		1635	my ($self) = @_;
		1636
		1637	"$self->{path}"
		1638	}
		1639
		1640	# the displayed name, this is a one way mapping
		1641	sub visible_name {
		1642	&as_string
		1643	}
		1644
		1645	# the original (read-only) location
		1646	sub load_path {
		1647	my ($self) = @_;
		1648
		1649	"$MAPDIR/$self->{path}.map"
		1650	}
		1651
		1652	# the temporary/swap location
		1653	sub save_path {
		1654	my ($self) = @_;
		1655
		1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1657	"$TMPDIR/$path.map"
		1658	}
		1659
		1660	# the unique path, undef == no special unique path
		1661	sub uniq_path {
		1662	my ($self) = @_;
		1663
		1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1665	"$UNIQUEDIR/$path"
1142	}	1666	}
1143		1667
1144	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1145	# all maps in C++...	1669	# all maps in C++...
1146	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1148		1672
1149	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1151	}	1675	}
1152		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
		1685	sub unlink_save {
		1686	my ($self) = @_;
		1687
		1688	utf8::encode (my $save = $self->save_path);
		1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1690	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1691	}
		1692
1153	sub try_load_header($) {	1693	sub load_header_from($) {
1154	my ($path) = @_;	1694	my ($self, $path) = @_;
1155		1695
1156	utf8::encode $path;	1696	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
		1698	# or return;
		1699
		1700	$self->_load_header ($path)
1158	or return;	1701	or return;
1159		1702
1160	my $map = cf::map::new	1703	$self->{load_path} = $path;
		1704
		1705	1
		1706	}
		1707
		1708	sub load_header_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->load_path)
		1712	}
		1713
		1714	sub load_header_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->save_path)
		1718	}
		1719
		1720	sub prepare_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->last_access ((delete $self->{last_access})
		1724	|| $cf::RUNTIME); #d#
		1725	# safety
		1726	$self->{instantiate_time} = $cf::RUNTIME
		1727	if $self->{instantiate_time} > $cf::RUNTIME;
		1728	}
		1729
		1730	sub prepare_orig {
		1731	my ($self) = @_;
		1732
		1733	$self->{load_original} = 1;
		1734	$self->{instantiate_time} = $cf::RUNTIME;
		1735	$self->last_access ($cf::RUNTIME);
		1736	$self->instantiate;
		1737	}
		1738
		1739	sub load_header {
		1740	my ($self) = @_;
		1741
		1742	if ($self->load_header_temp) {
		1743	$self->prepare_temp;
		1744	} else {
		1745	$self->load_header_orig
1161	or return;	1746	or return;
		1747	$self->prepare_orig;
		1748	}
1162		1749
1163	# for better error messages only, will be overwritten	1750	$self->{deny_reset} = 1
1164	$map->path ($path);	1751	if $self->no_reset;
1165		1752
1166	$map->load_header ($path)	1753	$self->default_region (cf::region::find_by_path $self->{path})
1167	or return;	1754	unless $self->default_region;
1168		1755
1169	$map->{load_path} = $path;	1756	1
1170
1171	$map
1172	}	1757	}
1173		1758
1174	sub find;	1759	sub find;
1175	sub find {	1760	sub find {
1176	my ($path, $origin) = @_;	1761	my ($path, $origin) = @_;
1177		1762
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1763	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1764
1183	cf::lock_wait "map_find:$key";	1765	cf::lock_wait "map_find:$path";
1184		1766
1185	$cf::MAP{$key} || do {	1767	$cf::MAP{$path} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	1768	my $guard = cf::lock_acquire "map_find:$path";
1187		1769	my $map = new_from_path cf::map $path
1188	# do it the slow way
1189	my $map = try_load_header $path->save_path;
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1770	or return;
1207		1771
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1220		1773
1221	Coro::cede;	1774	$map->load_header
		1775	or return;
1222		1776
1223	if ($map->should_reset) {	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1778	# doing this can freeze the server in a sync job, obviously
		1779	#$cf::WAIT_FOR_TICK->wait;
1224	$map->reset;	1780	$map->reset;
1225	undef $guard;	1781	undef $guard;
1226	$map = find $path	1782	return find $path;
1227	or return;
1228	}	1783	}
1229		1784
1230	$cf::MAP{$key} = $map	1785	$cf::MAP{$path} = $map
1231	}	1786	}
1232	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1233		1791
1234	sub load {	1792	sub load {
1235	my ($self) = @_;	1793	my ($self) = @_;
1236		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1237	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1800	my $guard = cf::lock_acquire "map_load:$path";
1239		1801
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1241		1803
1242	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1243		1805
1244	$self->alloc;	1806	$self->alloc;
		1807
		1808	$self->pre_load;
		1809	Coro::cede;
		1810
1245	$self->load_objects ($self->{load_path}, 1)	1811	$self->_load_objects ($self->{load_path}, 1)
1246	or return;	1812	or return;
1247		1813
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1815	if delete $self->{load_original};
1250		1816
1251	if (my $uniq = $path->uniq_path) {	1817	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1818	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1819	if (aio_open $uniq, O_RDONLY, 0) {
1254	$self->clear_unique_items;	1820	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1821	$self->_load_objects ($uniq, 0);
1256	}	1822	}
1257	}	1823	}
1258		1824
1259	Coro::cede;	1825	Coro::cede;
1260
1261	# now do the right thing for maps	1826	# now do the right thing for maps
1262	$self->link_multipart_objects;	1827	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	1829	unless $self->difficulty;
		1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1274	$self->activate;	1839	$self->activate;
1275	}	1840	}
1276		1841
1277	Coro::cede;
1278
1279	$self->in_memory (cf::MAP_IN_MEMORY);	1842	$self->in_memory (cf::MAP_IN_MEMORY);
		1843	}
		1844
		1845	$self->post_load;
		1846	}
		1847
		1848	sub customise_for {
		1849	my ($self, $ob) = @_;
		1850
		1851	return find "~" . $ob->name . "/" . $self->{path}
		1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
		1857	$self
		1858	}
		1859
		1860	# find and load all maps in the 3x3 area around a map
		1861	sub load_diag {
		1862	my ($map) = @_;
		1863
		1864	my @diag; # diagonal neighbours
		1865
		1866	for (0 .. 3) {
		1867	my $neigh = $map->tile_path ($_)
		1868	or next;
		1869	$neigh = find $neigh, $map
		1870	or next;
		1871	$neigh->load;
		1872
		1873	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1874	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1875	}
		1876
		1877	for (@diag) {
		1878	my $neigh = find @$_
		1879	or next;
		1880	$neigh->load;
		1881	}
1280	}	1882	}
1281		1883
1282	sub find_sync {	1884	sub find_sync {
1283	my ($path, $origin) = @_;	1885	my ($path, $origin) = @_;
1284		1886
1285	cf::sync_job { cf::map::find $path, $origin }	1887	cf::sync_job { find $path, $origin }
1286	}	1888	}
1287		1889
1288	sub do_load_sync {	1890	sub do_load_sync {
1289	my ($map) = @_;	1891	my ($map) = @_;
1290		1892
1291	cf::sync_job { $map->load };	1893	cf::sync_job { $map->load };
1292	}	1894	}
1293		1895
		1896	our %MAP_PREFETCH;
		1897	our $MAP_PREFETCHER = undef;
		1898
		1899	sub find_async {
		1900	my ($path, $origin) = @_;
		1901
		1902	$path = normalise $path, $origin && $origin->{path};
		1903
		1904	if (my $map = $cf::MAP{$path}) {
		1905	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1906	}
		1907
		1908	undef $MAP_PREFETCH{$path};
		1909	$MAP_PREFETCHER ||= cf::async {
		1910	while (%MAP_PREFETCH) {
		1911	for my $path (keys %MAP_PREFETCH) {
		1912	if (my $map = find $path) {
		1913	$map->load;
		1914	}
		1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
		1920	};
		1921	$MAP_PREFETCHER->prio (6);
		1922
		1923	()
		1924	}
		1925
1294	sub save {	1926	sub save {
1295	my ($self) = @_;	1927	my ($self) = @_;
1296		1928
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	1929	my $lock = cf::lock_acquire "map_data:" . $self->path;
1298		1930
1299	$self->{last_save} = $cf::RUNTIME;	1931	$self->{last_save} = $cf::RUNTIME;
1300		1932
1301	return unless $self->dirty;	1933	return unless $self->dirty;
1302		1934
1303	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1936	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		1937
1306	$self->{load_path} = $save;	1938	$self->{load_path} = $save;
1307		1939
1308	return if $self->{deny_save};	1940	return if $self->{deny_save};
1309		1941
1310	local $self->{last_access} = $self->last_access;#d#	1942	local $self->{last_access} = $self->last_access;#d#
1311		1943
		1944	cf::async {
		1945	$_->contr->save for $self->players;
		1946	};
		1947
1312	if ($uniq) {	1948	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1949	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	1950	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	1951	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1952	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	1953	}
1318	}	1954	}
1319		1955
1320	sub swap_out {	1956	sub swap_out {
1321	my ($self) = @_;	1957	my ($self) = @_;
…		…
1335		1971
1336	sub reset_at {	1972	sub reset_at {
1337	my ($self) = @_;	1973	my ($self) = @_;
1338		1974
1339	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1342		1977
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		1980
…		…
1350	my ($self) = @_;	1985	my ($self) = @_;
1351		1986
1352	$self->reset_at <= $cf::RUNTIME	1987	$self->reset_at <= $cf::RUNTIME
1353	}	1988	}
1354		1989
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	1990	sub reset {
1377	my ($self) = @_;	1991	my ($self) = @_;
1378		1992
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		1994
1381	return if $self->players;	1995	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		1996
1384	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
		1998
		1999	$self->in_memory (cf::MAP_SWAPPED);
		2000
		2001	# need to save uniques path
		2002	unless ($self->{deny_save}) {
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2006	if $uniq;
		2007	}
1385		2008
1386	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
		2010
		2011	$self->clear;
1387		2012
1388	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1389		2014
1390	$self->unlink_save;	2015	$self->unlink_save;
1391	$self->destroy;	2016	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	2019	my $nuke_counter = "aaaa";
1395		2020
1396	sub nuke {	2021	sub nuke {
1397	my ($self) = @_;	2022	my ($self) = @_;
1398		2023
		2024	delete $cf::MAP{$self->path};
		2025
		2026	$self->unlink_save;
		2027
		2028	bless $self, "cf::map";
		2029	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2030	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2031	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2032	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2033
		2034	$cf::MAP{$self->path} = $self;
		2035
1402	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1403	}	2037	}
1404		2038
1405	sub customise_for {	2039	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2040
1408	if ($map->per_player) {	2041	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
1410	}	2047	[
1411		2048	map {
1412	$map	2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
1413	}	2055	}
1414		2056
1415	sub emergency_save {	2057	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2058
1418	warn "enter emergency map save\n";	2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
1419		2061
1420	cf::sync_job {	2062	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2063
1425	warn "end emergency map save\n";	2064	sub random_maps() {
		2065	[
		2066	map {
		2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
		2074
		2075	=item cf::map::unique_maps
		2076
		2077	Returns an arrayref of paths of all shared maps that have
		2078	instantiated unique items. May block.
		2079
		2080	=cut
		2081
		2082	sub unique_maps() {
		2083	[
		2084	map {
		2085	utf8::decode $_;
		2086	/\.map$/
		2087	? normalise $_
		2088	: ()
		2089	} @{ aio_readdir $UNIQUEDIR or [] }
		2090	]
1426	}	2091	}
1427		2092
1428	package cf;	2093	package cf;
1429		2094
1430	=back	2095	=back
1431		2096
		2097	=head3 cf::object
		2098
		2099	=cut
		2100
		2101	package cf::object;
		2102
		2103	=over 4
		2104
		2105	=item $ob->inv_recursive
		2106
		2107	Returns the inventory of the object _and_ their inventories, recursively.
		2108
		2109	=cut
		2110
		2111	sub inv_recursive_;
		2112	sub inv_recursive_ {
		2113	map { $_, inv_recursive_ $_->inv } @_
		2114	}
		2115
		2116	sub inv_recursive {
		2117	inv_recursive_ inv $_[0]
		2118	}
		2119
		2120	package cf;
		2121
		2122	=back
1432		2123
1433	=head3 cf::object::player	2124	=head3 cf::object::player
1434		2125
1435	=over 4	2126	=over 4
1436		2127
…		…
1450		2141
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2143
1453	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1455	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1458	}	2163	}
1459	}	2164	}
1460		2165
1461	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1462		2167
…		…
1476		2181
1477	=item $player_object->enter_link	2182	=item $player_object->enter_link
1478		2183
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2184	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2185
1481	The player should be reaosnably safe there for short amounts of time. You	2186	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2187	I<MUST> call C<leave_link> as soon as possible, though.
1483		2188
		2189	Will never block.
		2190
1484	=item $player_object->leave_link ($map, $x, $y)	2191	=item $player_object->leave_link ($map, $x, $y)
1485		2192
1486	Moves the player out of the specila link map onto the given map. If the	2193	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2194	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2195	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2196	fails, to the emergency map position.
1490		2197
1491	Might block.	2198	Might block.
1492		2199
1493	=cut	2200	=cut
		2201
		2202	sub link_map {
		2203	unless ($LINK_MAP) {
		2204	$LINK_MAP = cf::map::find "{link}"
		2205	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2206	$LINK_MAP->load;
		2207	}
		2208
		2209	$LINK_MAP
		2210	}
1494		2211
1495	sub cf::object::player::enter_link {	2212	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2213	my ($self) = @_;
1497		2214
1498	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1499		2216
1500	return if $self->map == $LINK_MAP;	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2218
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1504		2221
1505	$self->enter_map ($LINK_MAP, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2223	}
1507		2224
1508	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1510		2229
1511	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1512		2231
1513	unless ($map) {	2232	unless ($map) {
1514	# restore original map position	2233	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2247	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2248	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2249	if $x <=0 && $y <= 0;
1531		2250
1532	$map->load;	2251	$map->load;
		2252	$map->load_diag;
1533		2253
		2254	return unless $self->contr->active;
1534	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1536	}	2259	}
1537		2260
1538	cf::player->attach (	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2262
1542	# abort map switching before logout	2263	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2264	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2265	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2266	the new (success) or old (failed) map position. In either case, $done will
1546	};	2267	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2268
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)
1572
1573	=cut	2269	=cut
		2270
		2271	our $GOTOGEN;
1574		2272
1575	sub cf::object::player::goto {	2273	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2274	my ($self, $path, $x, $y, $check, $done) = @_;
		2275
		2276	# do generation counting so two concurrent goto's will be executed in-order
		2277	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2278
1578	$self->enter_link;	2279	$self->enter_link;
1579		2280
1580	(async {	2281	(async {
1581	$path = new cf::path $path;	2282	my $map = eval {
1582
1583	my $map = cf::map::find $path->as_string;	2283	my $map = cf::map::find $path;
		2284
		2285	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2286	$map = $map->customise_for ($self);
1585		2287	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2288	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2289	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	}
1590		2291
		2292	$map
		2293	};
		2294
		2295	if ($@) {
		2296	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2297	LOG llevError | logBacktrace, Carp::longmess $@;
		2298	}
		2299
		2300	if ($gen == $self->{_goto_generation}) {
		2301	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2302	$self->leave_link ($map, $x, $y);
		2303	}
		2304
		2305	$done->() if $done;
1592	})->prio (1);	2306	})->prio (1);
1593	}	2307	}
1594		2308
1595	=item $player_object->enter_exit ($exit_object)	2309	=item $player_object->enter_exit ($exit_object)
1596		2310
…		…
1598		2312
1599	sub parse_random_map_params {	2313	sub parse_random_map_params {
1600	my ($spec) = @_;	2314	my ($spec) = @_;
1601		2315
1602	my $rmp = { # defaults	2316	my $rmp = { # defaults
1603	xsize => 10,	2317	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2318	ysize => (cf::rndm 15, 40),
		2319	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2320	#layout => string,
1605	};	2321	};
1606		2322
1607	for (split /\n/, $spec) {	2323	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2324	my ($k, $v) = split /\s+/, $_, 2;
1609		2325
…		…
1613	$rmp	2329	$rmp
1614	}	2330	}
1615		2331
1616	sub prepare_random_map {	2332	sub prepare_random_map {
1617	my ($exit) = @_;	2333	my ($exit) = @_;
		2334
		2335	my $guard = cf::lock_acquire "exit_prepare:$exit";
1618		2336
1619	# all this does is basically replace the /! path by	2337	# all this does is basically replace the /! path by
1620	# a new random map path (?random/...) with a seed	2338	# a new random map path (?random/...) with a seed
1621	# that depends on the exit object	2339	# that depends on the exit object
1622		2340
1623	my $rmp = parse_random_map_params $exit->msg;	2341	my $rmp = parse_random_map_params $exit->msg;
1624		2342
1625	if ($exit->map) {	2343	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2344	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2345	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2346	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2347	$rmp->{origin_y} = $exit->y;
1630	}	2348	}
1631		2349
1632	$rmp->{random_seed} ||= $exit->random_seed;	2350	$rmp->{random_seed} ||= $exit->random_seed;
1633		2351
1634	my $data = cf::to_json $rmp;	2352	my $data = cf::to_json $rmp;
1635	my $md5 = Digest::MD5::md5_hex $data;	2353	my $md5 = Digest::MD5::md5_hex $data;
		2354	my $meta = "$RANDOMDIR/$md5.meta";
1636		2355
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2356	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2357	aio_write $fh, 0, (length $data), $data, 0;
		2358	undef $fh;
		2359	aio_rename "$meta~", $meta;
1639		2360
1640	$exit->slaying ("?random/$md5");	2361	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2362	$exit->msg (undef);
1642	}	2363	}
1643	}	2364	}
…		…
1645	sub cf::object::player::enter_exit {	2366	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2367	my ($self, $exit) = @_;
1647		2368
1648	return unless $self->type == cf::PLAYER;	2369	return unless $self->type == cf::PLAYER;
1649		2370
		2371	if ($exit->slaying eq "/!") {
		2372	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2373	# the problem is that $exit might not survive long enough
		2374	# so it needs to be done right now, right here
		2375	cf::sync_job { prepare_random_map $exit };
		2376	}
		2377
		2378	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2379	my $hp = $exit->stats->hp;
		2380	my $sp = $exit->stats->sp;
		2381
1650	$self->enter_link;	2382	$self->enter_link;
		2383
		2384	# if exit is damned, update players death & WoR home-position
		2385	$self->contr->savebed ($slaying, $hp, $sp)
		2386	if $exit->flag (FLAG_DAMNED);
1651		2387
1652	(async {	2388	(async {
1653	$self->deactivate_recursive; # just to be sure	2389	$self->deactivate_recursive; # just to be sure
1654	unless (eval {	2390	unless (eval {
1655	prepare_random_map $exit	2391	$self->goto ($slaying, $hp, $sp);
1656	if $exit->slaying eq "/!";
1657
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1660		2392
1661	1;	2393	1;
1662	}) {	2394	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2395	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "I'll try to bring you back to the map you were before. "	2396	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2397	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2398	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2399
1668	warn "ERROR in enter_exit: $@";	2400	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2401	$self->leave_link;
1670	}	2402	}
1671	})->prio (1);	2403	})->prio (1);
…		…
1684		2416
1685	sub cf::client::send_drawinfo {	2417	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2418	my ($self, $text, $flags) = @_;
1687		2419
1688	utf8::encode $text;	2420	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2421	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2422	}
1691		2423
		2424	=item $client->send_msg ($color, $type, $msg, [extra...])
		2425
		2426	Send a drawinfo or msg packet to the client, formatting the msg for the
		2427	client if neccessary. C<$type> should be a string identifying the type of
		2428	the message, with C<log> being the default. If C<$color> is negative, suppress
		2429	the message unless the client supports the msg packet.
		2430
		2431	=cut
		2432
		2433	sub cf::client::send_msg {
		2434	my ($self, $color, $type, $msg, @extra) = @_;
		2435
		2436	$msg = $self->pl->expand_cfpod ($msg);
		2437
		2438	return unless @extra || length $msg;
		2439
		2440	if ($self->can_msg) {
		2441	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2442	} else {
		2443	# replace some tags by gcfclient-compatible ones
		2444	for ($msg) {
		2445	1 while
		2446	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2447	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2448	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2449	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2450	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2451	}
		2452
		2453	if ($color >= 0) {
		2454	if (0 && $msg =~ /\[/) {
		2455	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2456	} else {
		2457	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2458	$self->send_packet ("drawinfo $color $msg")
		2459	}
		2460	}
		2461	}
		2462	}
		2463
		2464	=item $client->ext_event ($type, %msg)
		2465
		2466	Sends an ext event to the client.
		2467
		2468	=cut
		2469
		2470	sub cf::client::ext_event($$%) {
		2471	my ($self, $type, %msg) = @_;
		2472
		2473	return unless $self->extcmd;
		2474
		2475	$msg{msgtype} = "event_$type";
		2476	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2477	}
1692		2478
1693	=item $success = $client->query ($flags, "text", \&cb)	2479	=item $success = $client->query ($flags, "text", \&cb)
1694		2480
1695	Queues a query to the client, calling the given callback with	2481	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2482	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2483	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2484
1699	Queries can fail, so check the return code. Or don't, as queries will become	2485	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2486	become reliable at some point in the future.
1701		2487
1702	=cut	2488	=cut
1703		2489
1704	sub cf::client::query {	2490	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2491	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2499	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2500	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2501
1716	$self->send_packet ($self->{query_queue}[0][0])	2502	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2503	if @{ $self->{query_queue} } == 1;
		2504
		2505	1
1718	}	2506	}
1719		2507
1720	cf::client->attach (	2508	cf::client->attach (
		2509	on_connect => sub {
		2510	my ($ns) = @_;
		2511
		2512	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2513	},
1721	on_reply => sub {	2514	on_reply => sub {
1722	my ($ns, $msg) = @_;	2515	my ($ns, $msg) = @_;
1723		2516
1724	# this weird shuffling is so that direct followup queries	2517	# this weird shuffling is so that direct followup queries
1725	# get handled first	2518	# get handled first
1726	my $queue = delete $ns->{query_queue}	2519	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2520	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2521
1729	(shift @$queue)->[1]->($msg);	2522	(shift @$queue)->[1]->($msg);
		2523	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2524
1731	push @{ $ns->{query_queue} }, @$queue;	2525	push @{ $ns->{query_queue} }, @$queue;
1732		2526
1733	if (@{ $ns->{query_queue} } == @$queue) {	2527	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2528	if (@$queue) {
…		…
1736	} else {	2530	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2531	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	2532	}
1739	}	2533	}
1740	},	2534	},
		2535	on_exticmd => sub {
		2536	my ($ns, $buf) = @_;
		2537
		2538	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2539
		2540	if (ref $msg) {
		2541	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2542	if (my %reply = $cb->($ns, $msg)) {
		2543	$reply{msgid} = $msg->{msgid};
		2544	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2545	}
		2546	}
		2547	} else {
		2548	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2549	}
		2550
		2551	cf::override;
		2552	},
1741	);	2553	);
1742		2554
1743	=item $client->async (\&cb)	2555	=item $client->async (\&cb)
1744		2556
1745	Create a new coroutine, running the specified callback. The coroutine will	2557	Create a new coroutine, running the specified callback. The coroutine will
…		…
1792		2604
1793	# here we export the classes and methods available to script code	2605	# here we export the classes and methods available to script code
1794		2606
1795	=pod	2607	=pod
1796		2608
1797	The following fucntions and emthods are available within a safe environment:	2609	The following functions and methods are available within a safe environment:
1798		2610
1799	cf::object contr pay_amount pay_player map	2611	cf::object
		2612	contr pay_amount pay_player map x y force_find force_add
		2613	insert remove
		2614
1800	cf::object::player player	2615	cf::object::player
1801	cf::player peaceful	2616	player
1802	cf::map trigger	2617
		2618	cf::player
		2619	peaceful
		2620
		2621	cf::map
		2622	trigger
1803		2623
1804	=cut	2624	=cut
1805		2625
1806	for (	2626	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	2627	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2628	insert remove)],
1808	["cf::object::player" => qw(player)],	2629	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	2630	["cf::player" => qw(peaceful)],
1810	["cf::map" => qw(trigger)],	2631	["cf::map" => qw(trigger)],
1811	) {	2632	) {
1812	no strict 'refs';	2633	no strict 'refs';
…		…
1883	=back	2704	=back
1884		2705
1885	=cut	2706	=cut
1886		2707
1887	#############################################################################	2708	#############################################################################
		2709	# the server's init and main functions
1888		2710
1889	=head2 EXTENSION DATABASE SUPPORT	2711	sub load_facedata($) {
		2712	my ($path) = @_;
1890		2713
1891	Crossfire maintains a very simple database for extension use. It can	2714	warn "loading facedata from $path\n";
1892	currently store anything that can be serialised using Storable, which
1893	excludes objects.
1894		2715
1895	The parameter C<$family> should best start with the name of the extension	2716	my $facedata;
1896	using it, it should be unique.	2717	0 < aio_load $path, $facedata
		2718	or die "$path: $!";
1897		2719
1898	=over 4	2720	$facedata = Coro::Storable::thaw $facedata;
1899		2721
1900	=item $hashref = cf::db_get $family	2722	$facedata->{version} == 2
		2723	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		2724
1902	Return a hashref for use by the extension C<$family>, which can be
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905
1906	=item $value = cf::db_get $family => $key
1907
1908	Returns a single value from the database
1909
1910	=item cf::db_put $family => $hashref
1911
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}	2725	{
		2726	my $faces = $facedata->{faceinfo};
1938		2727
1939	my $pid;	2728	while (my ($face, $info) = each %$faces) {
		2729	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2730	cf::face::set_visibility $idx, $info->{visibility};
		2731	cf::face::set_magicmap $idx, $info->{magicmap};
		2732	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2733	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1940		2734
1941	sub db_save() {	2735	cf::cede_to_tick;
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});
1961
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}
1966
1967	sub db_get($;$) {
1968	@_ >= 2
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972
1973	sub db_put($$;$) {
1974	if (@_ >= 3) {
1975	$DB->{$_[0]}{$_[1]} = $_[2];
1976	} else {
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981
1982	cf::global->attach (
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	2736	}
1987	);
1988	}
1989		2737
1990	#############################################################################	2738	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	2739	next unless $info->{smooth};
		2740	my $idx = cf::face::find $face
		2741	or next;
		2742	if (my $smooth = cf::face::find $info->{smooth}) {
		2743	cf::face::set_smooth $idx, $smooth;
		2744	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2745	} else {
		2746	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2747	}
		2748
		2749	cf::cede_to_tick;
		2750	}
		2751	}
		2752
		2753	{
		2754	my $anims = $facedata->{animinfo};
		2755
		2756	while (my ($anim, $info) = each %$anims) {
		2757	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2758	cf::cede_to_tick;
		2759	}
		2760
		2761	cf::anim::invalidate_all; # d'oh
		2762	}
		2763
		2764	{
		2765	# TODO: for gcfclient pleasure, we should give resources
		2766	# that gcfclient doesn't grok a >10000 face index.
		2767	my $res = $facedata->{resource};
		2768	my $enc = JSON::XS->new->utf8->canonical;
		2769
		2770	while (my ($name, $info) = each %$res) {
		2771	my $meta = $enc->encode ({
		2772	name => $name,
		2773	type => $info->{type},
		2774	copyright => $info->{copyright}, #TODO#
		2775	});
		2776
		2777	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2778
		2779	if ($name =~ /\.jpg$/) {
		2780	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2781	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2782	} else {
		2783	my $data = pack "(w/a*)*", $meta, $info->{data};
		2784	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2785
		2786	cf::face::set_type $idx, 1;
		2787	cf::face::set_data $idx, 0, $data, $chk;
		2788	}
		2789
		2790	cf::cede_to_tick;
		2791	}
		2792	}
		2793
		2794	1
		2795	}
		2796
		2797	sub reload_regions {
		2798	load_resource_file "$MAPDIR/regions"
		2799	or die "unable to load regions file\n";
		2800
		2801	for (cf::region::list) {
		2802	$_->{match} = qr/$_->{match}/
		2803	if exists $_->{match};
		2804	}
		2805	}
		2806
		2807	sub reload_facedata {
		2808	load_facedata "$DATADIR/facedata"
		2809	or die "unable to load facedata\n";
		2810	}
		2811
		2812	sub reload_archetypes {
		2813	load_resource_file "$DATADIR/archetypes"
		2814	or die "unable to load archetypes\n";
		2815	#d# NEED to laod twice to resolve forward references
		2816	# this really needs to be done in an extra post-pass
		2817	# (which needs to be synchronous, so solve it differently)
		2818	load_resource_file "$DATADIR/archetypes"
		2819	or die "unable to load archetypes\n";
		2820	}
		2821
		2822	sub reload_treasures {
		2823	load_resource_file "$DATADIR/treasures"
		2824	or die "unable to load treasurelists\n";
		2825	}
		2826
		2827	sub reload_resources {
		2828	warn "reloading resource files...\n";
		2829
		2830	reload_regions;
		2831	reload_facedata;
		2832	#reload_archetypes;#d#
		2833	reload_archetypes;
		2834	reload_treasures;
		2835
		2836	warn "finished reloading resource files\n";
		2837	}
		2838
		2839	sub init {
		2840	reload_resources;
		2841	}
1992		2842
1993	sub cfg_load {	2843	sub cfg_load {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	2844	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	2845	or return;
1996		2846
1997	local $/;	2847	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	2848	*CFG = YAML::Syck::Load <$fh>;
1999		2849
…		…
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2852	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2853	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		2854
2005	if (exists $CFG{mlockall}) {	2855	if (exists $CFG{mlockall}) {
2006	eval {	2856	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	2857	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	2858	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	2859	};
2010	warn $@ if $@;	2860	warn $@ if $@;
2011	}	2861	}
2012	}	2862	}
2013		2863
2014	sub main {	2864	sub main {
2015	# we must not ever block the main coroutine	2865	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	2866	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2867	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2868	(async {
2018	async { Event::one_event };	2869	Event::one_event;
		2870	})->prio (Coro::PRIO_MAX);
2019	};	2871	};
2020		2872
2021	cfg_load;	2873	cfg_load;
2022	db_load;	2874	db_init;
2023	load_extensions;	2875	load_extensions;
		2876
		2877	$TICK_WATCHER->start;
2024	Event::loop;	2878	Event::loop;
2025	}	2879	}
2026		2880
2027	#############################################################################	2881	#############################################################################
2028	# initialisation	2882	# initialisation and cleanup
2029		2883
		2884	# install some emergency cleanup handlers
		2885	BEGIN {
		2886	for my $signal (qw(INT HUP TERM)) {
		2887	Event->signal (
		2888	reentrant => 0,
		2889	data => WF_AUTOCANCEL,
		2890	signal => $signal,
		2891	prio => 0,
		2892	cb => sub {
		2893	cf::cleanup "SIG$signal";
		2894	},
		2895	);
		2896	}
		2897	}
		2898
		2899	sub write_runtime {
		2900	my $runtime = "$LOCALDIR/runtime";
		2901
		2902	# first touch the runtime file to show we are still running:
		2903	# the fsync below can take a very very long time.
		2904
		2905	IO::AIO::aio_utime $runtime, undef, undef;
		2906
		2907	my $guard = cf::lock_acquire "write_runtime";
		2908
		2909	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2910	or return;
		2911
		2912	my $value = $cf::RUNTIME + 90 + 10;
		2913	# 10 is the runtime save interval, for a monotonic clock
		2914	# 60 allows for the watchdog to kill the server.
		2915
		2916	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2917	and return;
		2918
		2919	# always fsync - this file is important
		2920	aio_fsync $fh
		2921	and return;
		2922
		2923	# touch it again to show we are up-to-date
		2924	aio_utime $fh, undef, undef;
		2925
		2926	close $fh
		2927	or return;
		2928
		2929	aio_rename "$runtime~", $runtime
		2930	and return;
		2931
		2932	warn "runtime file written.\n";
		2933
		2934	1
		2935	}
		2936
		2937	sub emergency_save() {
		2938	my $freeze_guard = cf::freeze_mainloop;
		2939
		2940	warn "enter emergency perl save\n";
		2941
		2942	cf::sync_job {
		2943	# use a peculiar iteration method to avoid tripping on perl
		2944	# refcount bugs in for. also avoids problems with players
		2945	# and maps saved/destroyed asynchronously.
		2946	warn "begin emergency player save\n";
		2947	for my $login (keys %cf::PLAYER) {
		2948	my $pl = $cf::PLAYER{$login} or next;
		2949	$pl->valid or next;
		2950	$pl->save;
		2951	}
		2952	warn "end emergency player save\n";
		2953
		2954	warn "begin emergency map save\n";
		2955	for my $path (keys %cf::MAP) {
		2956	my $map = $cf::MAP{$path} or next;
		2957	$map->valid or next;
		2958	$map->save;
		2959	}
		2960	warn "end emergency map save\n";
		2961
		2962	warn "begin emergency database checkpoint\n";
		2963	BDB::db_env_txn_checkpoint $DB_ENV;
		2964	warn "end emergency database checkpoint\n";
		2965	};
		2966
		2967	warn "leave emergency perl save\n";
		2968	}
		2969
		2970	sub post_cleanup {
		2971	my ($make_core) = @_;
		2972
		2973	warn Carp::longmess "post_cleanup backtrace"
		2974	if $make_core;
		2975	}
		2976
2030	sub reload() {	2977	sub do_reload_perl() {
2031	# can/must only be called in main	2978	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	2979	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	2980	warn "can only reload from main coroutine";
2034	return;	2981	return;
2035	}	2982	}
2036		2983
2037	warn "reloading...";	2984	warn "reloading...";
2038		2985
2039	my $guard = freeze_mainloop;	2986	warn "entering sync_job";
		2987
		2988	cf::sync_job {
		2989	cf::write_runtime; # external watchdog should not bark
2040	cf::emergency_save;	2990	cf::emergency_save;
		2991	cf::write_runtime; # external watchdog should not bark
2041		2992
2042	eval {	2993	warn "syncing database to disk";
		2994	BDB::db_env_txn_checkpoint $DB_ENV;
		2995
2043	# if anything goes wrong in here, we should simply crash as we already saved	2996	# if anything goes wrong in here, we should simply crash as we already saved
2044		2997
2045	# cancel all watchers	2998	warn "cancelling all WF_AUTOCANCEL watchers";
2046	for (Event::all_watchers) {	2999	for (Event::all_watchers) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	3000	$_->cancel if $_->data & WF_AUTOCANCEL;
2048	}	3001	}
2049		3002
		3003	warn "flushing outstanding aio requests";
		3004	for (;;) {
		3005	BDB::flush;
		3006	IO::AIO::flush;
		3007	Coro::cede;
		3008	last unless IO::AIO::nreqs || BDB::nreqs;
		3009	warn "iterate...";
		3010	}
		3011
		3012	++$RELOAD;
		3013
2050	# cancel all extension coros	3014	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	3015	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	3016	%EXT_CORO = ();
2053		3017
2054	# unload all extensions	3018	warn "removing commands";
2055	for (@exts) {	3019	%COMMAND = ();
		3020
		3021	warn "removing ext/exti commands";
		3022	%EXTCMD = ();
		3023	%EXTICMD = ();
		3024
		3025	warn "unloading/nuking all extensions";
		3026	for my $pkg (@EXTS) {
2056	warn "unloading <$_>";	3027	warn "... unloading $pkg";
2057	unload_extension $_;	3028
		3029	if (my $cb = $pkg->can ("unload")) {
		3030	eval {
		3031	$cb->($pkg);
		3032	1
		3033	} or warn "$pkg unloaded, but with errors: $@";
2058	}	3034	}
2059		3035
		3036	warn "... nuking $pkg";
		3037	Symbol::delete_package $pkg;
		3038	}
		3039
2060	# unload all modules loaded from $LIBDIR	3040	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	3041	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3042	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3043
2064	warn "removing <$k>";	3044	warn "... unloading $k";
2065	delete $INC{$k};	3045	delete $INC{$k};
2066		3046
2067	$k =~ s/\.pm$//;	3047	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	3048	$k =~ s/\//::/g;
2069		3049
…		…
2072	}	3052	}
2073		3053
2074	Symbol::delete_package $k;	3054	Symbol::delete_package $k;
2075	}	3055	}
2076		3056
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	3057	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3058	Symbol::delete_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3059	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3060
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	3061	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	3062	delete $INC{"cf.pm"};
		3063	delete $INC{"cf/pod.pm"};
2090		3064
2091	# don't, removes xs symbols, too,	3065	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3066	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3067	#Symbol::delete_package __PACKAGE__;
2094		3068
2095	# reload cf.pm	3069	warn "unload completed, starting to reload now";
		3070
2096	warn "reloading cf.pm";	3071	warn "reloading cf.pm";
2097	require cf;	3072	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3073	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3074
2100	# load config and database again	3075	warn "loading config and database again";
2101	cf::cfg_load;	3076	cf::cfg_load;
2102	cf::db_load;
2103		3077
2104	# load extensions
2105	warn "load extensions";	3078	warn "loading extensions";
2106	cf::load_extensions;	3079	cf::load_extensions;
2107		3080
2108	# reattach attachments to objects	3081	warn "reattaching attachments to objects/players";
2109	warn "reattach";	3082	_global_reattach; # objects, sockets
2110	_global_reattach;	3083	warn "reattaching attachments to maps";
2111	};	3084	reattach $_ for values %MAP;
		3085	warn "reattaching attachments to players";
		3086	reattach $_ for values %PLAYER;
2112		3087
2113	if ($@) {	3088	warn "leaving sync_job";
		3089
		3090	1
		3091	} or do {
2114	warn $@;	3092	warn $@;
2115	warn "error while reloading, exiting.";	3093	warn "error while reloading, exiting.";
2116	exit 1;	3094	exit 1;
2117	}	3095	};
2118		3096
2119	warn "reloaded successfully";	3097	warn "reloaded";
2120	};	3098	};
2121		3099
2122	#############################################################################	3100	our $RELOAD_WATCHER; # used only during reload
2123		3101
2124	unless ($LINK_MAP) {	3102	sub reload_perl() {
2125	$LINK_MAP = cf::map::new;	3103	# doing reload synchronously and two reloads happen back-to-back,
		3104	# coro crashes during coro_state_free->destroy here.
2126		3105
2127	$LINK_MAP->width (41);	3106	$RELOAD_WATCHER ||= Event->timer (
2128	$LINK_MAP->height (41);	3107	reentrant => 0,
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,	3108	after => 0,
		3109	data => WF_AUTOCANCEL,
2137	cb => sub {	3110	cb => sub {
2138	$_[0]->w->cancel;	3111	do_reload_perl;
2139		3112	undef $RELOAD_WATCHER;
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});	3113	},
2158		3114	);
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3115	}
2164
2165	register "<global>", __PACKAGE__;
2166		3116
2167	register_command "reload" => sub {	3117	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3118	my ($who, $arg) = @_;
2169		3119
2170	if ($who->flag (FLAG_WIZ)) {	3120	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3121	$who->message ("reloading server.");
		3122	async { reload_perl };
2174	}	3123	}
2175	};	3124	};
2176		3125
2177	unshift @INC, $LIBDIR;	3126	unshift @INC, $LIBDIR;
2178		3127
		3128	my $bug_warning = 0;
		3129
		3130	our @WAIT_FOR_TICK;
		3131	our @WAIT_FOR_TICK_BEGIN;
		3132
		3133	sub wait_for_tick {
		3134	return unless $TICK_WATCHER->is_active;
		3135	return if $Coro::current == $Coro::main;
		3136
		3137	my $signal = new Coro::Signal;
		3138	push @WAIT_FOR_TICK, $signal;
		3139	$signal->wait;
		3140	}
		3141
		3142	sub wait_for_tick_begin {
		3143	return unless $TICK_WATCHER->is_active;
		3144	return if $Coro::current == $Coro::main;
		3145
		3146	my $signal = new Coro::Signal;
		3147	push @WAIT_FOR_TICK_BEGIN, $signal;
		3148	$signal->wait;
		3149	}
		3150
		3151	my $min = 1e6;#d#
		3152	my $avg = 10;
2179	$TICK_WATCHER = Event->timer (	3153	$TICK_WATCHER = Event->timer (
2180	reentrant => 0,	3154	reentrant => 0,
		3155	parked => 1,
2181	prio => 0,	3156	prio => 0,
2182	at => $NEXT_TICK || $TICK,	3157	at => $NEXT_TICK || $TICK,
2183	data => WF_AUTOCANCEL,	3158	data => WF_AUTOCANCEL,
2184	cb => sub {	3159	cb => sub {
		3160	if ($Coro::current != $Coro::main) {
		3161	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3162	unless ++$bug_warning > 10;
		3163	return;
		3164	}
		3165
		3166	$NOW = $tick_start = Event::time;
		3167
2185	cf::server_tick; # one server iteration	3168	cf::server_tick; # one server iteration
		3169
		3170	0 && sync_job {#d#
		3171	for(1..10) {
		3172	my $t = Event::time;
		3173	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3174	or die;
		3175
		3176	$map->width (50);
		3177	$map->height (50);
		3178	$map->alloc;
		3179	$map->_load_objects ("/tmp/x.map", 1);
		3180	my $t = Event::time - $t;
		3181
		3182	#next unless $t < 0.0013;#d#
		3183	if ($t < $min) {
		3184	$min = $t;
		3185	}
		3186	$avg = $avg * 0.99 + $t * 0.01;
		3187	}
		3188	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3189	exit 0;
		3190	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3191	};
		3192
2186	$RUNTIME += $TICK;	3193	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;	3194	$NEXT_TICK += $TICK;
2188		3195
		3196	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3197	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3198	Coro::async_pool {
		3199	write_runtime
		3200	or warn "ERROR: unable to write runtime file: $!";
		3201	};
		3202	}
		3203
		3204	# my $AFTER = Event::time;
		3205	# warn $AFTER - $NOW;#d#
		3206
		3207	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3208	$sig->send;
		3209	}
		3210	while (my $sig = shift @WAIT_FOR_TICK) {
		3211	$sig->send;
		3212	}
		3213
		3214	$NOW = Event::time;
		3215
2189	# if we are delayed by four ticks or more, skip them all	3216	# if we are delayed by four ticks or more, skip them all
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3217	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2191		3218
2192	$TICK_WATCHER->at ($NEXT_TICK);	3219	$TICK_WATCHER->at ($NEXT_TICK);
2193	$TICK_WATCHER->start;	3220	$TICK_WATCHER->start;
		3221
		3222	$LOAD = ($NOW - $tick_start) / $TICK;
		3223	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3224
		3225	_post_tick;
		3226
		3227
2194	},	3228	},
2195	);	3229	);
2196		3230
		3231	{
2197	IO::AIO::max_poll_time $TICK * 0.2;	3232	BDB::max_poll_time $TICK * 0.1;
2198		3233	$BDB_POLL_WATCHER = Event->io (
2199	Event->io (	3234	reentrant => 0,
2200	fd => IO::AIO::poll_fileno,	3235	fd => BDB::poll_fileno,
2201	poll => 'r',	3236	poll => 'r',
2202	prio => 5,	3237	prio => 0,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,	3238	data => WF_AUTOCANCEL,
2209	after => 0,	3239	cb => \&BDB::poll_cb,
2210	interval => 10,	3240	);
2211	cb => sub {	3241	BDB::min_parallel 8;
2212	(Coro::unblock_sub {	3242
2213	write_runtime	3243	BDB::set_sync_prepare {
2214	or warn "ERROR: unable to write runtime file: $!";	3244	my $status;
		3245	my $current = $Coro::current;
		3246	(
		3247	sub {
		3248	$status = $!;
		3249	$current->ready; undef $current;
		3250	},
		3251	sub {
		3252	Coro::schedule while defined $current;
		3253	$! = $status;
		3254	},
		3255	)
		3256	};
		3257
		3258	unless ($DB_ENV) {
		3259	$DB_ENV = BDB::db_env_create;
		3260
		3261	cf::sync_job {
		3262	eval {
		3263	BDB::db_env_open
		3264	$DB_ENV,
		3265	$BDBDIR,
		3266	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3267	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3268	0666;
		3269
		3270	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3271
		3272	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3273	$DB_ENV->set_lk_detect;
		3274	};
		3275
		3276	cf::cleanup "db_env_open(db): $@" if $@;
2215	})->();	3277	};
2216	},	3278	}
2217	);	3279	}
		3280
		3281	{
		3282	IO::AIO::min_parallel 8;
		3283
		3284	undef $Coro::AIO::WATCHER;
		3285	IO::AIO::max_poll_time $TICK * 0.1;
		3286	$AIO_POLL_WATCHER = Event->io (
		3287	reentrant => 0,
		3288	data => WF_AUTOCANCEL,
		3289	fd => IO::AIO::poll_fileno,
		3290	poll => 'r',
		3291	prio => 6,
		3292	cb => \&IO::AIO::poll_cb,
		3293	);
		3294	}
		3295
		3296	my $_log_backtrace;
		3297
		3298	sub _log_backtrace {
		3299	my ($msg, @addr) = @_;
		3300
		3301	$msg =~ s/\n//;
		3302
		3303	# limit the # of concurrent backtraces
		3304	if ($_log_backtrace < 2) {
		3305	++$_log_backtrace;
		3306	async {
		3307	my @bt = fork_call {
		3308	@addr = map { sprintf "%x", $_ } @addr;
		3309	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3310	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3311	or die "addr2line: $!";
		3312
		3313	my @funcs;
		3314	my @res = <$fh>;
		3315	chomp for @res;
		3316	while (@res) {
		3317	my ($func, $line) = splice @res, 0, 2, ();
		3318	push @funcs, "[$func] $line";
		3319	}
		3320
		3321	@funcs
		3322	};
		3323
		3324	LOG llevInfo, "[ABT] $msg\n";
		3325	LOG llevInfo, "[ABT] $_\n" for @bt;
		3326	--$_log_backtrace;
		3327	};
		3328	} else {
		3329	LOG llevInfo, "[ABT] $msg\n";
		3330	LOG llevInfo, "[ABT] [suppressed]\n";
		3331	}
		3332	}
		3333
		3334	# load additional modules
		3335	use cf::pod;
2218		3336
2219	END { cf::emergency_save }	3337	END { cf::emergency_save }
2220		3338
2221	1	3339	1
2222		3340

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