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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.139 by root, Fri Jan 5 19:12:03 2007 UTC vs.
Revision 1.305 by root, Thu Jul 12 08:40:14 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	$guard
232	}	319	}
233		320
		321	=item cf::async { BLOCK }
		322
		323	Currently the same as Coro::async_pool, meaning you cannot use
		324	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		325	thing you are allowed to do is call C<prio> on it.
		326
		327	=cut
		328
		329	BEGIN { *async = \&Coro::async_pool }
		330
234	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
235		332
236	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
237	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
238	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
239		337
240	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
241	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
242	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
243	fast or be very important.	341	fast or be very important.
…		…
246		344
247	sub sync_job(&) {	345	sub sync_job(&) {
248	my ($job) = @_;	346	my ($job) = @_;
249		347
250	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
251	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
253		353
254	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	355	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	356	my $freeze_guard = freeze_mainloop;
257		357
258	my $busy = 1;	358	my $busy = 1;
259	my @res;	359	my @res;
260		360
261	(Coro::async_pool {	361	(async {
262	@res = eval { $job->() };	362	@res = eval { $job->() };
263	warn $@ if $@;	363	warn $@ if $@;
264	undef $busy;	364	undef $busy;
265	})->prio (Coro::PRIO_MAX);	365	})->prio (Coro::PRIO_MAX);
266		366
267	while ($busy) {	367	while ($busy) {
268	unless (Coro::cede) {	368	Coro::cede or Event::one_event;
269	Coro::nready ? Event::one_event 0 : Event::one_event;
270	Coro::cede_notself unless Coro::cede;
271	}	369	}
272	}	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
273		377
274	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
275	} else {	379	} else {
276	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
277		381
278	$job->()	382	$job->()
279	}	383	}
280	}	384	}
281		385
282	=item $coro = cf::coro { BLOCK }	386	=item $coro = cf::async_ext { BLOCK }
283		387
284	Creates (and readies) and returns a new coro. This coro is automcatially	388	Like async, but this coro is automatically being canceled when the
285	being canceled when the extension calling this is being unloaded.	389	extension calling this is being unloaded.
286		390
287	=cut	391	=cut
288		392
289	sub coro(&) {	393	sub async_ext(&) {
290	my $cb = shift;	394	my $cb = shift;
291		395
292	my $coro = &Coro::async_pool ($cb);	396	my $coro = &Coro::async ($cb);
293		397
294	$coro->on_destroy (sub {	398	$coro->on_destroy (sub {
295	delete $EXT_CORO{$coro+0};	399	delete $EXT_CORO{$coro+0};
296	});	400	});
297	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
298		402
299	$coro	403	$coro
300	}	404	}
301		405
302	sub write_runtime {	406	=item fork_call { }, $args
303	my $runtime = cf::localdir . "/runtime";
304		407
305	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
306	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.
307		412
308	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
309	(aio_write $fh, 0, (length $value), $value, 0) <= 0
310	and return;
311		414
312	aio_fsync $fh	415	sub _store_scalar {
313	and return;	416	open my $fh, ">", \my $buf
314		417	or die "fork_call: cannot open fh-to-buf in child : $!";
		418	Storable::store_fd $_[0], $fh;
315	close $fh	419	close $fh;
316	or return;
317		420
318	aio_rename "$runtime~", $runtime	421	$buf
319	and return;	422	}
320		423
		424	sub fork_call(&@) {
		425	my ($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 $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
321	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		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 });
322	}	593	}
323		594
324	=back	595	=back
325		596
326	=cut	597	=cut
327
328	#############################################################################
329
330	package cf::path;
331
332	sub new {
333	my ($class, $path, $base) = @_;
334
335	$path = $path->as_string if ref $path;
336
337	my $self = bless { }, $class;
338
339	# {... are special paths that are not touched
340	# ?xxx/... are special absolute paths
341	# ?random/... random maps
342	# /! non-realised random map exit
343	# /... normal maps
344	# ~/... per-player maps without a specific player (DO NOT USE)
345	# ~user/... per-player map of a specific user
346
347	if ($path =~ /^{/) {
348	# fine as it is
349	} elsif ($path =~ s{^\?random/}{}) {
350	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
351	$self->{random} = cf::from_json $data;
352	} else {
353	if ($path =~ s{^~([^/]+)?}{}) {
354	$self->{user_rel} = 1;
355
356	if (defined $1) {
357	$self->{user} = $1;
358	} elsif ($base =~ m{^~([^/]+)/}) {
359	$self->{user} = $1;
360	} else {
361	warn "cannot resolve user-relative path without user <$path,$base>\n";
362	}
363	} elsif ($path =~ /^\//) {
364	# already absolute
365	} else {
366	$base =~ s{[^/]+/?$}{};
367	return $class->new ("$base/$path");
368	}
369
370	for ($path) {
371	redo if s{/\.?/}{/};
372	redo if s{/[^/]+/\.\./}{/};
373	}
374	}
375
376	$self->{path} = $path;
377
378	$self
379	}
380
381	# the name / primary key / in-game path
382	sub as_string {
383	my ($self) = @_;
384
385	$self->{user_rel} ? "~$self->{user}$self->{path}"
386	: $self->{random} ? "?random/$self->{path}"
387	: $self->{path}
388	}
389
390	# the displayed name, this is a one way mapping
391	sub visible_name {
392	my ($self) = @_;
393
394	# if (my $rmp = $self->{random}) {
395	# # todo: be more intelligent about this
396	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
397	# } else {
398	$self->as_string
399	# }
400	}
401
402	# escape the /'s in the path
403	sub _escaped_path {
404	# ∕ is U+2215
405	(my $path = $_[0]{path}) =~ s/\//∕/g;
406	$path
407	}
408
409	# the original (read-only) location
410	sub load_path {
411	my ($self) = @_;
412
413	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
414	}
415
416	# the temporary/swap location
417	sub save_path {
418	my ($self) = @_;
419
420	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
421	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
422	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
423	}
424
425	# the unique path, might be eq to save_path
426	sub uniq_path {
427	my ($self) = @_;
428
429	$self->{user_rel} || $self->{random}
430	? undef
431	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
432	}
433
434	# return random map parameters, or undef
435	sub random_map_params {
436	my ($self) = @_;
437
438	$self->{random}
439	}
440
441	# this is somewhat ugly, but style maps do need special treatment
442	sub is_style_map {
443	$_[0]{path} =~ m{^/styles/}
444	}
445
446	package cf;
447		598
448	#############################################################################	599	#############################################################################
449		600
450	=head2 ATTACHABLE OBJECTS	601	=head2 ATTACHABLE OBJECTS
451		602
…		…
453	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")
454	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
455		606
456	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>
457	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
458	crossfire+).	609	Crossfire TRT).
459		610
460	=over 4	611	=over 4
461		612
462	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
463		614
…		…
577	our @CB_TYPE = (); # registry for type (cf-object class) based events	728	our @CB_TYPE = (); # registry for type (cf-object class) based events
578	our @CB_MAP = ();	729	our @CB_MAP = ();
579		730
580	my %attachment;	731	my %attachment;
581		732
		733	sub cf::attachable::thawer_merge {
		734	# simply override everything except _meta
		735	local $_[0]{_meta};
		736	%{$_[0]} = %{$_[1]};
		737	}
		738
582	sub _attach_cb($$$$) {	739	sub _attach_cb($$$$) {
583	my ($registry, $event, $prio, $cb) = @_;	740	my ($registry, $event, $prio, $cb) = @_;
584		741
585	use sort 'stable';	742	use sort 'stable';
586		743
…		…
620	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
621		778
622	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
623	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
624	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
625	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
626		783
627	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
628	my $pkg = shift @arg;	785	my $pkg = shift @arg;
629		786
630	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
659	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
660	}	817	}
661		818
662	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
663	} else {	820	} else {
664	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
665	}	822	}
666		823
667	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
668	}	825	}
669		826
…		…
671	if (ref $_[0]) {	828	if (ref $_[0]) {
672	_object_attach @_;	829	_object_attach @_;
673	} else {	830	} else {
674	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
675	}	832	}
		833	_recalc_want;
676	};	834	};
677		835
678	# all those should be optimised	836	# all those should be optimised
679	sub cf::attachable::detach {	837	sub cf::attachable::detach {
680	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
683	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
684	reattach ($obj);	842	reattach ($obj);
685	} else {	843	} else {
686	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
687	}	845	}
		846	_recalc_want;
688	};	847	};
689		848
690	sub cf::attachable::attached {	849	sub cf::attachable::attached {
691	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
692		851
…		…
757	# object support	916	# object support
758		917
759	sub reattach {	918	sub reattach {
760	# basically do the same as instantiate, without calling instantiate	919	# basically do the same as instantiate, without calling instantiate
761	my ($obj) = @_;	920	my ($obj) = @_;
		921
		922	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
762		923
763	my $registry = $obj->registry;	924	my $registry = $obj->registry;
764		925
765	@$registry = ();	926	@$registry = ();
766		927
…		…
813	$filename, length $$rdata, scalar @$objs;	974	$filename, length $$rdata, scalar @$objs;
814		975
815	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	976	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
816	chmod SAVE_MODE, $fh;	977	chmod SAVE_MODE, $fh;
817	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	978	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
818	aio_fsync $fh;	979	aio_fsync $fh if $cf::USE_FSYNC;
819	close $fh;	980	close $fh;
820		981
821	if (@$objs) {	982	if (@$objs) {
822	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) {
823	chmod SAVE_MODE, $fh;	984	chmod SAVE_MODE, $fh;
824	my $data = Storable::nfreeze { version => 1, objs => $objs };	985	my $data = Storable::nfreeze { version => 1, objs => $objs };
825	aio_write $fh, 0, (length $data), $data, 0;	986	aio_write $fh, 0, (length $data), $data, 0;
826	aio_fsync $fh;	987	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	988	close $fh;
828	aio_rename "$filename.pst~", "$filename.pst";	989	aio_rename "$filename.pst~", "$filename.pst";
829	}	990	}
830	} else {	991	} else {
831	aio_unlink "$filename.pst";	992	aio_unlink "$filename.pst";
…		…
863	or return;	1024	or return;
864	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
865	}	1026	}
866		1027
867	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
868	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
869	return ($data, $av);	1030	return ($data, $av);
870	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
871		1038
872	#############################################################################	1039	#############################################################################
873	# command handling &c	1040	# command handling &c
874		1041
875	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
888	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
889	}	1056	}
890		1057
891	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
892		1059
893	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.
894		1065
895	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
896	called.	1067	called.
897		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
898	=cut	1080	=cut
899		1081
900	sub register_extcmd {	1082	sub register_extcmd {
901	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
902		1084
903	my $caller = caller;
904	#warn "registering extcmd '$name' to '$caller'";
905
906	$EXTCMD{$name} = [$cb, $caller];	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
907	}	1092	}
908		1093
909	cf::player->attach (	1094	cf::player->attach (
910	on_command => sub {	1095	on_command => sub {
911	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
920	cf::override;	1105	cf::override;
921	},	1106	},
922	on_extcmd => sub {	1107	on_extcmd => sub {
923	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
924		1109
925	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
926		1111
927	if (ref $msg) {	1112	if (ref $msg) {
928	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
929	if (my %reply = $cb->[0]->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
930	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
931	}	1116	}
932	}	1117	}
933	} else {	1118	} else {
934	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1119	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
936		1121
937	cf::override;	1122	cf::override;
938	},	1123	},
939	);	1124	);
940		1125
941	sub register {
942	my ($base, $pkg) = @_;
943
944	#TODO
945	}
946
947	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($) {
948	my ($path) = @_;	1489	my ($path) = @_;
949		1490
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1491	my ($match, $specificity);
951	my $base = $1;
952	my $pkg = $1;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955		1492
956	warn "loading '$path' into '$pkg'\n";	1493	for my $region (list) {
957		1494	if ($region->{match} && $path =~ $region->{match}) {
958	open my $fh, "<:utf8", $path	1495	($match, $specificity) = ($region, $region->specificity)
959	or die "$path: $!";	1496	if $region->specificity > $specificity;
960		1497	}
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	eval $source
968	or die $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970
971	push @exts, $pkg;
972	$ext_pkg{$base} = $pkg;
973
974	# no strict 'refs';
975	# @{"$pkg\::ISA"} = ext::;
976
977	register $base, $pkg;
978	}
979
980	sub unload_extension {
981	my ($pkg) = @_;
982
983	warn "removing extension $pkg\n";
984
985	# remove hooks
986	#TODO
987	# for my $idx (0 .. $#PLUGIN_EVENT) {
988	# delete $hook[$idx]{$pkg};
989	# }	1498	}
990		1499
991	# remove commands	1500	$match
992	for my $name (keys %COMMAND) {
993	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
994
995	if (@cb) {
996	$COMMAND{$name} = \@cb;
997	} else {
998	delete $COMMAND{$name};
999	}
1000	}
1001
1002	# remove extcmds
1003	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1004	delete $EXTCMD{$name};
1005	}
1006
1007	if (my $cb = $pkg->can ("unload")) {
1008	eval {
1009	$cb->($pkg);
1010	1
1011	} or warn "$pkg unloaded, but with errors: $@";
1012	}
1013
1014	Symbol::delete_package $pkg;
1015	}
1016
1017	sub load_extensions {
1018	for my $ext (<$LIBDIR/*.ext>) {
1019	next unless -r $ext;
1020	eval {
1021	load_extension $ext;
1022	1
1023	} or warn "$ext not loaded: $@";
1024	}
1025	}
1026
1027	#############################################################################
1028	# load/save/clean perl data associated with a map
1029
1030	*cf::mapsupport::on_clean = sub {
1031	my ($map) = @_;
1032
1033	my $path = $map->tmpname;
1034	defined $path or return;
1035
1036	unlink "$path.pst";
1037	};
1038
1039	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1040
1041	#############################################################################
1042	# load/save perl data associated with player->ob objects
1043
1044	sub all_objects(@) {
1045	@_, map all_objects ($_->inv), @_
1046	}
1047
1048	# TODO: compatibility cruft, remove when no longer needed
1049	cf::player->attach (
1050	on_load => sub {
1051	my ($pl, $path) = @_;
1052
1053	for my $o (all_objects $pl->ob) {
1054	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1055	$o->set_ob_key_value ("_perl_data");
1056
1057	%$o = %{ Storable::thaw pack "H*", $value };
1058	}
1059	}
1060	},
1061	);
1062
1063	#############################################################################
1064
1065	=head2 CORE EXTENSIONS
1066
1067	Functions and methods that extend core crossfire objects.
1068
1069	=head3 cf::player
1070
1071	=over 4
1072
1073	=item cf::player::exists $login
1074
1075	Returns true when the given account exists.
1076
1077	=cut
1078
1079	sub cf::player::exists($) {
1080	cf::player::find $_[0]
1081	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1082	}
1083
1084	=item $player->ext_reply ($msgid, $msgtype, %msg)
1085
1086	Sends an ext reply to the player.
1087
1088	=cut
1089
1090	sub cf::player::ext_reply($$$%) {
1091	my ($self, $id, %msg) = @_;
1092
1093	$msg{msgid} = $id;
1094
1095	$self->send ("ext " . to_json \%msg);
1096	}	1501	}
1097		1502
1098	=back	1503	=back
1099
1100		1504
1101	=head3 cf::map	1505	=head3 cf::map
1102		1506
1103	=over 4	1507	=over 4
1104		1508
…		…
1107	package cf::map;	1511	package cf::map;
1108		1512
1109	use Fcntl;	1513	use Fcntl;
1110	use Coro::AIO;	1514	use Coro::AIO;
1111		1515
		1516	use overload
		1517	'""' => \&as_string,
		1518	fallback => 1;
		1519
1112	our $MAX_RESET = 3600;	1520	our $MAX_RESET = 3600;
1113	our $DEFAULT_RESET = 3000;	1521	our $DEFAULT_RESET = 3000;
1114		1522
1115	sub generate_random_map {	1523	sub generate_random_map {
1116	my ($path, $rmp) = @_;	1524	my ($self, $rmp) = @_;
1117
1118	# mit "rum" bekleckern, nicht	1525	# mit "rum" bekleckern, nicht
1119	cf::map::_create_random_map	1526	$self->_create_random_map (
1120	$path,
1121	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1527	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1122	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1528	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1123	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1529	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1124	$rmp->{exit_on_final_map},	1530	$rmp->{exit_on_final_map},
1125	$rmp->{xsize}, $rmp->{ysize},	1531	$rmp->{xsize}, $rmp->{ysize},
1126	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1532	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1127	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1533	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1128	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1534	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1129	$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},
1130	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1131	(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 $self;
		1621	}
		1622	}
		1623
		1624	Carp::carp "unable to resolve path '$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"
1132	}	1666	}
1133		1667
1134	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1135	# all maps in C++...	1669	# all maps in C++...
1136	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1138		1672
1139	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1140	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1141	}	1675	}
1142		1676
		1677	sub decay_objects {
		1678	my ($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
1143	sub try_load_header($) {	1693	sub load_header_from($) {
1144	my ($path) = @_;	1694	my ($self, $path) = @_;
1145		1695
1146	utf8::encode $path;	1696	utf8::encode $path;
1147	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
		1698	# or return;
		1699
		1700	$self->_load_header ($path)
1148	or return;	1701	or return;
1149		1702
1150	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
1151	or return;	1746	or return;
		1747	$self->prepare_orig;
		1748	}
1152		1749
1153	# for better error messages only, will be overwritten	1750	$self->{deny_reset} = 1
1154	$map->path ($path);	1751	if $self->no_reset;
1155		1752
1156	$map->load_header ($path)	1753	$self->default_region (cf::region::find_by_path $self->{path})
1157	or return;	1754	unless $self->default_region;
1158		1755
1159	$map->{load_path} = $path;	1756	1
1160
1161	$map
1162	}	1757	}
1163		1758
1164	sub find;	1759	sub find;
1165	sub find {	1760	sub find {
1166	my ($path, $origin) = @_;	1761	my ($path, $origin) = @_;
1167		1762
1168	#warn "find<$path,$origin>\n";#d#
1169
1170	$path = new cf::path $path, $origin && $origin->path;	1763	$path = normalise $path, $origin && $origin->path;
1171	my $key = $path->as_string;
1172		1764
1173	cf::lock_wait "map_find:$key";	1765	cf::lock_wait "map_find:$path";
1174		1766
1175	$cf::MAP{$key} || do {	1767	$cf::MAP{$path} || do {
1176	my $guard = cf::lock_acquire "map_find:$key";	1768	my $guard = cf::lock_acquire "map_find:$path";
1177		1769	my $map = new_from_path cf::map $path
1178	# do it the slow way
1179	my $map = try_load_header $path->save_path;
1180
1181	Coro::cede;
1182
1183	if ($map) {
1184	$map->last_access ((delete $map->{last_access})
1185	|| $cf::RUNTIME); #d#
1186	# safety
1187	$map->{instantiate_time} = $cf::RUNTIME
1188	if $map->{instantiate_time} > $cf::RUNTIME;
1189	} else {
1190	if (my $rmp = $path->random_map_params) {
1191	$map = generate_random_map $key, $rmp;
1192	} else {
1193	$map = try_load_header $path->load_path;
1194	}
1195
1196	$map or return;	1770	or return;
1197		1771
1198	$map->{load_original} = 1;
1199	$map->{instantiate_time} = $cf::RUNTIME;
1200	$map->last_access ($cf::RUNTIME);
1201	$map->instantiate;
1202
1203	# per-player maps become, after loading, normal maps
1204	$map->per_player (0) if $path->{user_rel};
1205	}
1206
1207	$map->path ($key);
1208	$map->{path} = $path;
1209	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1210		1773
1211	Coro::cede;	1774	$map->load_header
		1775	or return;
1212		1776
1213	if ($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;
1214	$map->reset;	1780	$map->reset;
1215	undef $guard;	1781	undef $guard;
1216	$map = find $path	1782	return find $path;
1217	or return;
1218	}	1783	}
1219		1784
1220	$cf::MAP{$key} = $map	1785	$cf::MAP{$path} = $map
1221	}	1786	}
1222	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1223		1791
1224	sub load {	1792	sub load {
1225	my ($self) = @_;	1793	my ($self) = @_;
1226		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1227	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1228	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1800	my $guard = cf::lock_acquire "map_load:$path";
1229		1801
1230	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1231		1803
1232	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1233		1805
1234	$self->alloc;	1806	$self->alloc;
		1807
		1808	$self->pre_load;
		1809	Coro::cede;
		1810
1235	$self->load_objects ($self->{load_path}, 1)	1811	$self->_load_objects ($self->{load_path}, 1)
1236	or return;	1812	or return;
1237		1813
1238	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1239	if delete $self->{load_original};	1815	if delete $self->{load_original};
1240		1816
1241	if (my $uniq = $path->uniq_path) {	1817	if (my $uniq = $self->uniq_path) {
1242	utf8::encode $uniq;	1818	utf8::encode $uniq;
1243	if (aio_open $uniq, O_RDONLY, 0) {	1819	if (aio_open $uniq, O_RDONLY, 0) {
1244	$self->clear_unique_items;	1820	$self->clear_unique_items;
1245	$self->load_objects ($uniq, 0);	1821	$self->_load_objects ($uniq, 0);
1246	}	1822	}
1247	}	1823	}
1248		1824
1249	Coro::cede;	1825	Coro::cede;
1250
1251	# now do the right thing for maps	1826	# now do the right thing for maps
1252	$self->link_multipart_objects;	1827	$self->link_multipart_objects;
1253
1254	if ($self->{path}->is_style_map) {
1255	$self->{deny_save} = 1;
1256	$self->{deny_reset} = 1;
1257	} else {
1258	$self->fix_auto_apply;
1259	$self->decay_objects;
1260	$self->update_buttons;
1261	$self->set_darkness_map;
1262	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1263	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;
1264	$self->activate;	1839	$self->activate;
1265	}	1840	}
1266		1841
1267	Coro::cede;
1268
1269	$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	$neigh->load;
		1881	}
1270	}	1882	}
1271		1883
1272	sub find_sync {	1884	sub find_sync {
1273	my ($path, $origin) = @_;	1885	my ($path, $origin) = @_;
1274		1886
1275	cf::sync_job {	1887	cf::sync_job { find $path, $origin }
1276	my $map = cf::map::find $path, $origin;
1277	$map
1278	}
1279	}	1888	}
1280		1889
1281	sub do_load_sync {	1890	sub do_load_sync {
1282	my ($map) = @_;	1891	my ($map) = @_;
1283		1892
1284	cf::sync_job { $map->load };	1893	cf::sync_job { $map->load };
1285	}	1894	}
1286		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	my $map = find $path
		1913	or next;
		1914	$map->load;
		1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
		1920	};
		1921	$MAP_PREFETCHER->prio (6);
		1922
		1923	()
		1924	}
		1925
1287	sub save {	1926	sub save {
1288	my ($self) = @_;	1927	my ($self) = @_;
1289		1928
1290	my $lock = cf::lock_acquire "map_data:" . $self->path;	1929	my $lock = cf::lock_acquire "map_data:" . $self->path;
1291		1930
1292	$self->{last_save} = $cf::RUNTIME;	1931	$self->{last_save} = $cf::RUNTIME;
1293		1932
1294	return unless $self->dirty;	1933	return unless $self->dirty;
1295		1934
1296	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $save = $self->save_path; utf8::encode $save;
1297	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1936	my $uniq = $self->uniq_path; utf8::encode $uniq;
1298		1937
1299	$self->{load_path} = $save;	1938	$self->{load_path} = $save;
1300		1939
1301	return if $self->{deny_save};	1940	return if $self->{deny_save};
1302		1941
1303	local $self->{last_access} = $self->last_access;#d#	1942	local $self->{last_access} = $self->last_access;#d#
1304		1943
		1944	cf::async {
		1945	$_->contr->save for $self->players;
		1946	};
		1947
1305	if ($uniq) {	1948	if ($uniq) {
1306	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1949	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1307	$self->save_objects ($uniq, cf::IO_UNIQUES);	1950	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1308	} else {	1951	} else {
1309	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1952	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1310	}	1953	}
1311	}	1954	}
1312		1955
1313	sub swap_out {	1956	sub swap_out {
1314	my ($self) = @_;	1957	my ($self) = @_;
…		…
1328		1971
1329	sub reset_at {	1972	sub reset_at {
1330	my ($self) = @_;	1973	my ($self) = @_;
1331		1974
1332	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1333	return 1e99 if $self->{path}{user_rel};
1334	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1335		1977
1336	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1337	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1338		1980
…		…
1343	my ($self) = @_;	1985	my ($self) = @_;
1344		1986
1345	$self->reset_at <= $cf::RUNTIME	1987	$self->reset_at <= $cf::RUNTIME
1346	}	1988	}
1347		1989
1348	sub unlink_save {
1349	my ($self) = @_;
1350
1351	utf8::encode (my $save = $self->{path}->save_path);
1352	aioreq_pri 3; IO::AIO::aio_unlink $save;
1353	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1354	}
1355
1356	sub rename {
1357	my ($self, $new_path) = @_;
1358
1359	$self->unlink_save;
1360
1361	delete $cf::MAP{$self->path};
1362	$self->{path} = new cf::path $new_path;
1363	$self->path ($self->{path}->as_string);
1364	$cf::MAP{$self->path} = $self;
1365
1366	$self->save;
1367	}
1368
1369	sub reset {	1990	sub reset {
1370	my ($self) = @_;	1991	my ($self) = @_;
1371		1992
1372	my $lock = cf::lock_acquire "map_data:" . $self->path;	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1373		1994
1374	return if $self->players;	1995	return if $self->players;
1375	return if $self->{path}{user_rel};#d#
1376		1996
1377	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	}
1378		2008
1379	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
		2010
		2011	$self->clear;
1380		2012
1381	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1382		2014
1383	$self->unlink_save;	2015	$self->unlink_save;
1384	$self->destroy;	2016	$self->destroy;
…		…
1387	my $nuke_counter = "aaaa";	2019	my $nuke_counter = "aaaa";
1388		2020
1389	sub nuke {	2021	sub nuke {
1390	my ($self) = @_;	2022	my ($self) = @_;
1391		2023
		2024	delete $cf::MAP{$self->path};
		2025
		2026	$self->unlink_save;
		2027
		2028	bless $self, "cf::map";
		2029	delete $self->{deny_reset};
1392	$self->{deny_save} = 1;	2030	$self->{deny_save} = 1;
1393	$self->reset_timeout (1);	2031	$self->reset_timeout (1);
1394	$self->rename ("{nuke}/" . ($nuke_counter++));	2032	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2033
		2034	$cf::MAP{$self->path} = $self;
		2035
1395	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1396	}	2037	}
1397		2038
1398	sub customise_for {	2039	=item $maps = cf::map::tmp_maps
1399	my ($map, $ob) = @_;
1400		2040
1401	if ($map->per_player) {	2041	Returns an arrayref with all map paths of currently instantiated and saved
1402	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
1403	}	2047	[
1404		2048	map {
1405	$map	2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
1406	}	2055	}
1407		2056
1408	sub emergency_save {	2057	=item $maps = cf::map::random_maps
1409	my $freeze_guard = cf::freeze_mainloop;
1410		2058
1411	warn "enter emergency map save\n";	2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
1412		2061
1413	cf::sync_job {	2062	=cut
1414	warn "begin emergency map save\n";
1415	$_->save for values %cf::MAP;
1416	};
1417		2063
1418	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	]
1419	}	2091	}
1420		2092
1421	package cf;	2093	package cf;
1422		2094
1423	=back	2095	=back
1424		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
1425		2123
1426	=head3 cf::object::player	2124	=head3 cf::object::player
1427		2125
1428	=over 4	2126	=over 4
1429		2127
…		…
1443		2141
1444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1445		2143
1446	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1448	} 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 {
1449	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1450	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1451	}	2163	}
1452	}	2164	}
1453		2165
1454	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1455		2167
…		…
1469		2181
1470	=item $player_object->enter_link	2182	=item $player_object->enter_link
1471		2183
1472	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}>).
1473		2185
1474	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
1475	I<MUST> call C<leave_link> as soon as possible, though.	2187	I<MUST> call C<leave_link> as soon as possible, though.
1476		2188
		2189	Will never block.
		2190
1477	=item $player_object->leave_link ($map, $x, $y)	2191	=item $player_object->leave_link ($map, $x, $y)
1478		2192
1479	Moves the player out of the specila link map onto the given map. If the	2193	Moves the player out of the special C<{link}> map onto the specified
1480	map is not valid (or omitted), the player will be moved back to the	2194	map. If the map is not valid (or omitted), the player will be moved back
1481	location he/she was before the call to C<enter_link>, or, if that fails,	2195	to the location he/she was before the call to C<enter_link>, or, if that
1482	to the emergency map position.	2196	fails, to the emergency map position.
1483		2197
1484	Might block.	2198	Might block.
1485		2199
1486	=cut	2200	=cut
		2201
		2202	sub link_map {
		2203	unless ($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	$LINK_MAP
		2210	}
1487		2211
1488	sub cf::object::player::enter_link {	2212	sub cf::object::player::enter_link {
1489	my ($self) = @_;	2213	my ($self) = @_;
1490		2214
1491	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1492		2216
1493	return if $self->map == $LINK_MAP;	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1494		2218
1495	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1496	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1497		2221
1498	$self->enter_map ($LINK_MAP, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1499	}	2223	}
1500		2224
1501	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1502	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1503		2229
1504	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1505		2231
1506	unless ($map) {	2232	unless ($map) {
1507	# restore original map position	2233	# restore original map position
…		…
1521	# use -1 or undef as default coordinates, not 0, 0	2247	# use -1 or undef as default coordinates, not 0, 0
1522	($x, $y) = ($map->enter_x, $map->enter_y)	2248	($x, $y) = ($map->enter_x, $map->enter_y)
1523	if $x <=0 && $y <= 0;	2249	if $x <=0 && $y <= 0;
1524		2250
1525	$map->load;	2251	$map->load;
		2252	$map->load_diag;
1526		2253
		2254	return unless $self->contr->active;
1527	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1528	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1529	}	2259	}
1530		2260
1531	cf::player->attach (
1532	on_logout => sub {
1533	my ($pl) = @_;
1534
1535	# abort map switching before logout
1536	if ($pl->ob->{_link_pos}) {
1537	cf::sync_job {
1538	$pl->ob->leave_link
1539	};
1540	}
1541	},
1542	on_login => sub {
1543	my ($pl) = @_;
1544
1545	# try to abort aborted map switching on player login :)
1546	# should happen only on crashes
1547	if ($pl->ob->{_link_pos}) {
1548
1549	$pl->ob->enter_link;
1550	(Coro::async_pool {
1551	# we need this sleep as the login has a concurrent enter_exit running
1552	# and this sleep increases chances of the player not ending up in scorn
1553	Coro::Timer::sleep 1;
1554	$pl->ob->leave_link;
1555	})->prio (2);
1556	}
1557	},
1558	);
1559
1560	=item $player_object->goto ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1561		2262
		2263	Moves the player to the given map-path and coordinates by first freezing
		2264	her, loading and preparing them map, calling the provided $check callback
		2265	that has to return the map if sucecssful, and then unfreezes the player on
		2266	the new (success) or old (failed) map position.
		2267
1562	=cut	2268	=cut
		2269
		2270	our $GOTOGEN;
1563		2271
1564	sub cf::object::player::goto {	2272	sub cf::object::player::goto {
1565	my ($self, $path, $x, $y) = @_;	2273	my ($self, $path, $x, $y, $check) = @_;
		2274
		2275	# do generation counting so two concurrent goto's will be executed in-order
		2276	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1566		2277
1567	$self->enter_link;	2278	$self->enter_link;
1568		2279
1569	(Coro::async_pool {	2280	(async {
1570	$path = new cf::path $path;	2281	my $map = eval {
1571
1572	my $map = cf::map::find $path->as_string;	2282	my $map = cf::map::find $path;
		2283
		2284	if ($map) {
1573	$map = $map->customise_for ($self) if $map;	2285	$map = $map->customise_for ($self);
1574		2286	$map = $check->($map) if $check && $map;
1575	# warn "entering ", $map->path, " at ($x, $y)\n"	2287	} else {
1576	# if $map;
1577
1578	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2288	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2289	}
1579		2290
		2291	$map
		2292	};
		2293
		2294	if ($@) {
		2295	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	LOG llevError | logBacktrace, Carp::longmess $@;
		2297	}
		2298
		2299	if ($gen == $self->{_goto_generation}) {
		2300	delete $self->{_goto_generation};
1580	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1581	})->prio (1);	2303	})->prio (1);
1582	}	2304	}
1583		2305
1584	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1585		2307
…		…
1587		2309
1588	sub parse_random_map_params {	2310	sub parse_random_map_params {
1589	my ($spec) = @_;	2311	my ($spec) = @_;
1590		2312
1591	my $rmp = { # defaults	2313	my $rmp = { # defaults
1592	xsize => 10,	2314	xsize => (cf::rndm 15, 40),
1593	ysize => 10,	2315	ysize => (cf::rndm 15, 40),
		2316	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2317	#layout => string,
1594	};	2318	};
1595		2319
1596	for (split /\n/, $spec) {	2320	for (split /\n/, $spec) {
1597	my ($k, $v) = split /\s+/, $_, 2;	2321	my ($k, $v) = split /\s+/, $_, 2;
1598		2322
…		…
1602	$rmp	2326	$rmp
1603	}	2327	}
1604		2328
1605	sub prepare_random_map {	2329	sub prepare_random_map {
1606	my ($exit) = @_;	2330	my ($exit) = @_;
		2331
		2332	my $guard = cf::lock_acquire "exit_prepare:$exit";
1607		2333
1608	# all this does is basically replace the /! path by	2334	# all this does is basically replace the /! path by
1609	# a new random map path (?random/...) with a seed	2335	# a new random map path (?random/...) with a seed
1610	# that depends on the exit object	2336	# that depends on the exit object
1611		2337
1612	my $rmp = parse_random_map_params $exit->msg;	2338	my $rmp = parse_random_map_params $exit->msg;
1613		2339
1614	if ($exit->map) {	2340	if ($exit->map) {
1615	$rmp->{region} = $exit->map->region_name;	2341	$rmp->{region} = $exit->region->name;
1616	$rmp->{origin_map} = $exit->map->path;	2342	$rmp->{origin_map} = $exit->map->path;
1617	$rmp->{origin_x} = $exit->x;	2343	$rmp->{origin_x} = $exit->x;
1618	$rmp->{origin_y} = $exit->y;	2344	$rmp->{origin_y} = $exit->y;
1619	}	2345	}
1620		2346
1621	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1622		2348
1623	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1624	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
		2351	my $meta = "$RANDOMDIR/$md5.meta";
1625		2352
1626	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2353	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1627	aio_write $fh, 0, (length $data), $data, 0;	2354	aio_write $fh, 0, (length $data), $data, 0;
		2355	undef $fh;
		2356	aio_rename "$meta~", $meta;
1628		2357
1629	$exit->slaying ("?random/$md5");	2358	$exit->slaying ("?random/$md5");
1630	$exit->msg (undef);	2359	$exit->msg (undef);
1631	}	2360	}
1632	}	2361	}
…		…
1634	sub cf::object::player::enter_exit {	2363	sub cf::object::player::enter_exit {
1635	my ($self, $exit) = @_;	2364	my ($self, $exit) = @_;
1636		2365
1637	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1638		2367
		2368	if ($exit->slaying eq "/!") {
		2369	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2370	# the problem is that $exit might not survive long enough
		2371	# so it needs to be done right now, right here
		2372	cf::sync_job { prepare_random_map $exit };
		2373	}
		2374
		2375	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2376	my $hp = $exit->stats->hp;
		2377	my $sp = $exit->stats->sp;
		2378
1639	$self->enter_link;	2379	$self->enter_link;
1640		2380
1641	(Coro::async_pool {	2381	# if exit is damned, update players death & WoR home-position
		2382	$self->contr->savebed ($slaying, $hp, $sp)
		2383	if $exit->flag (FLAG_DAMNED);
		2384
		2385	(async {
1642	$self->deactivate_recursive; # just to be sure	2386	$self->deactivate_recursive; # just to be sure
1643	unless (eval {	2387	unless (eval {
1644	prepare_random_map $exit	2388	$self->goto ($slaying, $hp, $sp);
1645	if $exit->slaying eq "/!";
1646
1647	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1648	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1649		2389
1650	1;	2390	1;
1651	}) {	2391	}) {
1652	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1653	. "I'll try to bring you back to the map you were before. "	2393	. "I'll try to bring you back to the map you were before. "
1654	. "Please report this to the dungeon master",	2394	. "Please report this to the dungeon master!",
1655	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1656		2396
1657	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1658	$self->leave_link;	2398	$self->leave_link;
1659	}	2399	}
1660	})->prio (1);	2400	})->prio (1);
…		…
1673		2413
1674	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1675	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1676		2416
1677	utf8::encode $text;	2417	utf8::encode $text;
1678	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1679	}	2419	}
1680		2420
		2421	=item $client->send_msg ($color, $type, $msg, [extra...])
		2422
		2423	Send a drawinfo or msg packet to the client, formatting the msg for the
		2424	client if neccessary. C<$type> should be a string identifying the type of
		2425	the message, with C<log> being the default. If C<$color> is negative, suppress
		2426	the message unless the client supports the msg packet.
		2427
		2428	=cut
		2429
		2430	sub cf::client::send_msg {
		2431	my ($self, $color, $type, $msg, @extra) = @_;
		2432
		2433	$msg = $self->pl->expand_cfpod ($msg);
		2434
		2435	return unless @extra || length $msg;
		2436
		2437	if ($self->can_msg) {
		2438	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2439	} else {
		2440	# replace some tags by gcfclient-compatible ones
		2441	for ($msg) {
		2442	1 while
		2443	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2444	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2445	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2446	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2447	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2448	}
		2449
		2450	if ($color >= 0) {
		2451	if (0 && $msg =~ /\[/) {
		2452	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2453	} else {
		2454	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2455	$self->send_packet ("drawinfo $color $msg")
		2456	}
		2457	}
		2458	}
		2459	}
		2460
		2461	=item $client->ext_event ($type, %msg)
		2462
		2463	Sends an ext event to the client.
		2464
		2465	=cut
		2466
		2467	sub cf::client::ext_event($$%) {
		2468	my ($self, $type, %msg) = @_;
		2469
		2470	return unless $self->extcmd;
		2471
		2472	$msg{msgtype} = "event_$type";
		2473	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2474	}
1681		2475
1682	=item $success = $client->query ($flags, "text", \&cb)	2476	=item $success = $client->query ($flags, "text", \&cb)
1683		2477
1684	Queues a query to the client, calling the given callback with	2478	Queues a query to the client, calling the given callback with
1685	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2479	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1686	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2480	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1687		2481
1688	Queries can fail, so check the return code. Or don't, as queries will become	2482	Queries can fail, so check the return code. Or don't, as queries will
1689	reliable at some point in the future.	2483	become reliable at some point in the future.
1690		2484
1691	=cut	2485	=cut
1692		2486
1693	sub cf::client::query {	2487	sub cf::client::query {
1694	my ($self, $flags, $text, $cb) = @_;	2488	my ($self, $flags, $text, $cb) = @_;
…		…
1702	utf8::encode $text;	2496	utf8::encode $text;
1703	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2497	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1704		2498
1705	$self->send_packet ($self->{query_queue}[0][0])	2499	$self->send_packet ($self->{query_queue}[0][0])
1706	if @{ $self->{query_queue} } == 1;	2500	if @{ $self->{query_queue} } == 1;
		2501
		2502	1
1707	}	2503	}
1708		2504
1709	cf::client->attach (	2505	cf::client->attach (
		2506	on_connect => sub {
		2507	my ($ns) = @_;
		2508
		2509	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2510	},
1710	on_reply => sub {	2511	on_reply => sub {
1711	my ($ns, $msg) = @_;	2512	my ($ns, $msg) = @_;
1712		2513
1713	# this weird shuffling is so that direct followup queries	2514	# this weird shuffling is so that direct followup queries
1714	# get handled first	2515	# get handled first
1715	my $queue = delete $ns->{query_queue}	2516	my $queue = delete $ns->{query_queue}
1716	or return; # be conservative, not sure how that can happen, but we saw a crash here	2517	or return; # be conservative, not sure how that can happen, but we saw a crash here
1717		2518
1718	(shift @$queue)->[1]->($msg);	2519	(shift @$queue)->[1]->($msg);
		2520	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1719		2521
1720	push @{ $ns->{query_queue} }, @$queue;	2522	push @{ $ns->{query_queue} }, @$queue;
1721		2523
1722	if (@{ $ns->{query_queue} } == @$queue) {	2524	if (@{ $ns->{query_queue} } == @$queue) {
1723	if (@$queue) {	2525	if (@$queue) {
…		…
1725	} else {	2527	} else {
1726	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2528	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1727	}	2529	}
1728	}	2530	}
1729	},	2531	},
		2532	on_exticmd => sub {
		2533	my ($ns, $buf) = @_;
		2534
		2535	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2536
		2537	if (ref $msg) {
		2538	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2539	if (my %reply = $cb->($ns, $msg)) {
		2540	$reply{msgid} = $msg->{msgid};
		2541	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2542	}
		2543	}
		2544	} else {
		2545	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2546	}
		2547
		2548	cf::override;
		2549	},
1730	);	2550	);
1731		2551
1732	=item $client->coro (\&cb)	2552	=item $client->async (\&cb)
1733		2553
1734	Create a new coroutine, running the specified callback. The coroutine will	2554	Create a new coroutine, running the specified callback. The coroutine will
1735	be automatically cancelled when the client gets destroyed (e.g. on logout,	2555	be automatically cancelled when the client gets destroyed (e.g. on logout,
1736	or loss of connection).	2556	or loss of connection).
1737		2557
1738	=cut	2558	=cut
1739		2559
1740	sub cf::client::coro {	2560	sub cf::client::async {
1741	my ($self, $cb) = @_;	2561	my ($self, $cb) = @_;
1742		2562
1743	my $coro = &Coro::async_pool ($cb);	2563	my $coro = &Coro::async ($cb);
1744		2564
1745	$coro->on_destroy (sub {	2565	$coro->on_destroy (sub {
1746	delete $self->{_coro}{$coro+0};	2566	delete $self->{_coro}{$coro+0};
1747	});	2567	});
1748		2568
…		…
1781		2601
1782	# here we export the classes and methods available to script code	2602	# here we export the classes and methods available to script code
1783		2603
1784	=pod	2604	=pod
1785		2605
1786	The following fucntions and emthods are available within a safe environment:	2606	The following functions and methods are available within a safe environment:
1787		2607
1788	cf::object contr pay_amount pay_player map	2608	cf::object
		2609	contr pay_amount pay_player map x y force_find force_add
		2610	insert remove
		2611
1789	cf::object::player player	2612	cf::object::player
1790	cf::player peaceful	2613	player
1791	cf::map trigger	2614
		2615	cf::player
		2616	peaceful
		2617
		2618	cf::map
		2619	trigger
1792		2620
1793	=cut	2621	=cut
1794		2622
1795	for (	2623	for (
1796	["cf::object" => qw(contr pay_amount pay_player map)],	2624	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2625	insert remove)],
1797	["cf::object::player" => qw(player)],	2626	["cf::object::player" => qw(player)],
1798	["cf::player" => qw(peaceful)],	2627	["cf::player" => qw(peaceful)],
1799	["cf::map" => qw(trigger)],	2628	["cf::map" => qw(trigger)],
1800	) {	2629	) {
1801	no strict 'refs';	2630	no strict 'refs';
…		…
1872	=back	2701	=back
1873		2702
1874	=cut	2703	=cut
1875		2704
1876	#############################################################################	2705	#############################################################################
		2706	# the server's init and main functions
1877		2707
1878	=head2 EXTENSION DATABASE SUPPORT	2708	sub load_facedata($) {
		2709	my ($path) = @_;
1879		2710
1880	Crossfire maintains a very simple database for extension use. It can	2711	warn "loading facedata from $path\n";
1881	currently store anything that can be serialised using Storable, which
1882	excludes objects.
1883		2712
1884	The parameter C<$family> should best start with the name of the extension	2713	my $facedata;
1885	using it, it should be unique.	2714	0 < aio_load $path, $facedata
		2715	or die "$path: $!";
1886		2716
1887	=over 4	2717	$facedata = Coro::Storable::thaw $facedata;
1888		2718
1889	=item $hashref = cf::db_get $family	2719	$facedata->{version} == 2
		2720	or cf::cleanup "$path: version mismatch, cannot proceed.";
1890		2721
1891	Return a hashref for use by the extension C<$family>, which can be
1892	modified. After modifications, you have to call C<cf::db_dirty> or
1893	C<cf::db_sync>.
1894
1895	=item $value = cf::db_get $family => $key
1896
1897	Returns a single value from the database
1898
1899	=item cf::db_put $family => $hashref
1900
1901	Stores the given family hashref into the database. Updates are delayed, if
1902	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1903
1904	=item cf::db_put $family => $key => $value
1905
1906	Stores the given C<$value> in the family hash. Updates are delayed, if you
1907	want the data to be synced to disk immediately, use C<cf::db_sync>.
1908
1909	=item cf::db_dirty
1910
1911	Marks the database as dirty, to be updated at a later time.
1912
1913	=item cf::db_sync
1914
1915	Immediately write the database to disk I<if it is dirty>.
1916
1917	=cut
1918
1919	our $DB;
1920
1921	{
1922	my $path = cf::localdir . "/database.pst";
1923
1924	sub db_load() {
1925	$DB = stat $path ? Storable::retrieve $path : { };
1926	}	2722	{
		2723	my $faces = $facedata->{faceinfo};
1927		2724
1928	my $pid;	2725	while (my ($face, $info) = each %$faces) {
		2726	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2727	cf::face::set_visibility $idx, $info->{visibility};
		2728	cf::face::set_magicmap $idx, $info->{magicmap};
		2729	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2730	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1929		2731
1930	sub db_save() {	2732	cf::cede_to_tick;
1931	waitpid $pid, 0 if $pid;
1932	if (0 == ($pid = fork)) {
1933	$DB->{_meta}{version} = 1;
1934	Storable::nstore $DB, "$path~";
1935	rename "$path~", $path;
1936	cf::_exit 0 if defined $pid;
1937	}
1938	}
1939
1940	my $dirty;
1941
1942	sub db_sync() {
1943	db_save if $dirty;
1944	undef $dirty;
1945	}
1946
1947	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1948	db_sync;
1949	});
1950
1951	sub db_dirty() {
1952	$dirty = 1;
1953	$idle->start;
1954	}
1955
1956	sub db_get($;$) {
1957	@_ >= 2
1958	? $DB->{$_[0]}{$_[1]}
1959	: ($DB->{$_[0]} ||= { })
1960	}
1961
1962	sub db_put($$;$) {
1963	if (@_ >= 3) {
1964	$DB->{$_[0]}{$_[1]} = $_[2];
1965	} else {
1966	$DB->{$_[0]} = $_[1];
1967	}
1968	db_dirty;
1969	}
1970
1971	cf::global->attach (
1972	prio => 10000,
1973	on_cleanup => sub {
1974	db_sync;
1975	},	2733	}
1976	);
1977	}
1978		2734
1979	#############################################################################	2735	while (my ($face, $info) = each %$faces) {
1980	# the server's main()	2736	next unless $info->{smooth};
		2737	my $idx = cf::face::find $face
		2738	or next;
		2739	if (my $smooth = cf::face::find $info->{smooth}) {
		2740	cf::face::set_smooth $idx, $smooth;
		2741	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2742	} else {
		2743	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2744	}
		2745
		2746	cf::cede_to_tick;
		2747	}
		2748	}
		2749
		2750	{
		2751	my $anims = $facedata->{animinfo};
		2752
		2753	while (my ($anim, $info) = each %$anims) {
		2754	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2755	cf::cede_to_tick;
		2756	}
		2757
		2758	cf::anim::invalidate_all; # d'oh
		2759	}
		2760
		2761	{
		2762	# TODO: for gcfclient pleasure, we should give resources
		2763	# that gcfclient doesn't grok a >10000 face index.
		2764	my $res = $facedata->{resource};
		2765	my $enc = JSON::XS->new->utf8->canonical;
		2766
		2767	while (my ($name, $info) = each %$res) {
		2768	my $meta = $enc->encode ({
		2769	name => $name,
		2770	type => $info->{type},
		2771	copyright => $info->{copyright}, #TODO#
		2772	});
		2773	my $data = pack "(w/a*)*", $meta, $info->{data};
		2774	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2775
		2776	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2777	cf::face::set_type $idx, 1;
		2778	cf::face::set_data $idx, 0, $data, $chk;
		2779
		2780	cf::cede_to_tick;
		2781	}
		2782	}
		2783
		2784	1
		2785	}
		2786
		2787	sub reload_regions {
		2788	load_resource_file "$MAPDIR/regions"
		2789	or die "unable to load regions file\n";
		2790
		2791	for (cf::region::list) {
		2792	$_->{match} = qr/$_->{match}/
		2793	if exists $_->{match};
		2794	}
		2795	}
		2796
		2797	sub reload_facedata {
		2798	load_facedata "$DATADIR/facedata"
		2799	or die "unable to load facedata\n";
		2800	}
		2801
		2802	sub reload_archetypes {
		2803	load_resource_file "$DATADIR/archetypes"
		2804	or die "unable to load archetypes\n";
		2805	#d# NEED to laod twice to resolve forward references
		2806	# this really needs to be done in an extra post-pass
		2807	# (which needs to be synchronous, so solve it differently)
		2808	load_resource_file "$DATADIR/archetypes"
		2809	or die "unable to load archetypes\n";
		2810	}
		2811
		2812	sub reload_treasures {
		2813	load_resource_file "$DATADIR/treasures"
		2814	or die "unable to load treasurelists\n";
		2815	}
		2816
		2817	sub reload_resources {
		2818	warn "reloading resource files...\n";
		2819
		2820	reload_regions;
		2821	reload_facedata;
		2822	#reload_archetypes;#d#
		2823	reload_archetypes;
		2824	reload_treasures;
		2825
		2826	warn "finished reloading resource files\n";
		2827	}
		2828
		2829	sub init {
		2830	reload_resources;
		2831	}
1981		2832
1982	sub cfg_load {	2833	sub cfg_load {
1983	open my $fh, "<:utf8", cf::confdir . "/config"	2834	open my $fh, "<:utf8", "$CONFDIR/config"
1984	or return;	2835	or return;
1985		2836
1986	local $/;	2837	local $/;
1987	*CFG = YAML::Syck::Load <$fh>;	2838	*CFG = YAML::Syck::Load <$fh>;
1988		2839
…		…
1991	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2842	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
1992	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2843	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1993		2844
1994	if (exists $CFG{mlockall}) {	2845	if (exists $CFG{mlockall}) {
1995	eval {	2846	eval {
1996	$CFG{mlockall} ? &mlockall : &munlockall	2847	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1997	and die "WARNING: m(un)lockall failed: $!\n";	2848	and die "WARNING: m(un)lockall failed: $!\n";
1998	};	2849	};
1999	warn $@ if $@;	2850	warn $@ if $@;
2000	}	2851	}
2001	}	2852	}
2002		2853
2003	sub main {	2854	sub main {
2004	# we must not ever block the main coroutine	2855	# we must not ever block the main coroutine
2005	local $Coro::idle = sub {	2856	local $Coro::idle = sub {
2006	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2857	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2007	Coro::async_pool { Event::one_event };	2858	(async {
		2859	Event::one_event;
		2860	})->prio (Coro::PRIO_MAX);
2008	};	2861	};
2009		2862
2010	cfg_load;	2863	cfg_load;
2011	db_load;	2864	db_init;
2012	load_extensions;	2865	load_extensions;
		2866
		2867	$TICK_WATCHER->start;
2013	Event::loop;	2868	Event::loop;
2014	}	2869	}
2015		2870
2016	#############################################################################	2871	#############################################################################
2017	# initialisation	2872	# initialisation and cleanup
2018		2873
		2874	# install some emergency cleanup handlers
		2875	BEGIN {
		2876	for my $signal (qw(INT HUP TERM)) {
		2877	Event->signal (
		2878	reentrant => 0,
		2879	data => WF_AUTOCANCEL,
		2880	signal => $signal,
		2881	prio => 0,
		2882	cb => sub {
		2883	cf::cleanup "SIG$signal";
		2884	},
		2885	);
		2886	}
		2887	}
		2888
		2889	sub write_runtime {
		2890	my $runtime = "$LOCALDIR/runtime";
		2891
		2892	# first touch the runtime file to show we are still running:
		2893	# the fsync below can take a very very long time.
		2894
		2895	IO::AIO::aio_utime $runtime, undef, undef;
		2896
		2897	my $guard = cf::lock_acquire "write_runtime";
		2898
		2899	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2900	or return;
		2901
		2902	my $value = $cf::RUNTIME + 90 + 10;
		2903	# 10 is the runtime save interval, for a monotonic clock
		2904	# 60 allows for the watchdog to kill the server.
		2905
		2906	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2907	and return;
		2908
		2909	# always fsync - this file is important
		2910	aio_fsync $fh
		2911	and return;
		2912
		2913	# touch it again to show we are up-to-date
		2914	aio_utime $fh, undef, undef;
		2915
		2916	close $fh
		2917	or return;
		2918
		2919	aio_rename "$runtime~", $runtime
		2920	and return;
		2921
		2922	warn "runtime file written.\n";
		2923
		2924	1
		2925	}
		2926
		2927	sub emergency_save() {
		2928	my $freeze_guard = cf::freeze_mainloop;
		2929
		2930	warn "enter emergency perl save\n";
		2931
		2932	cf::sync_job {
		2933	# use a peculiar iteration method to avoid tripping on perl
		2934	# refcount bugs in for. also avoids problems with players
		2935	# and maps saved/destroyed asynchronously.
		2936	warn "begin emergency player save\n";
		2937	for my $login (keys %cf::PLAYER) {
		2938	my $pl = $cf::PLAYER{$login} or next;
		2939	$pl->valid or next;
		2940	$pl->save;
		2941	}
		2942	warn "end emergency player save\n";
		2943
		2944	warn "begin emergency map save\n";
		2945	for my $path (keys %cf::MAP) {
		2946	my $map = $cf::MAP{$path} or next;
		2947	$map->valid or next;
		2948	$map->save;
		2949	}
		2950	warn "end emergency map save\n";
		2951
		2952	warn "begin emergency database checkpoint\n";
		2953	BDB::db_env_txn_checkpoint $DB_ENV;
		2954	warn "end emergency database checkpoint\n";
		2955	};
		2956
		2957	warn "leave emergency perl save\n";
		2958	}
		2959
		2960	sub post_cleanup {
		2961	my ($make_core) = @_;
		2962
		2963	warn Carp::longmess "post_cleanup backtrace"
		2964	if $make_core;
		2965	}
		2966
2019	sub reload() {	2967	sub do_reload_perl() {
2020	# can/must only be called in main	2968	# can/must only be called in main
2021	if ($Coro::current != $Coro::main) {	2969	if ($Coro::current != $Coro::main) {
2022	warn "can only reload from main coroutine\n";	2970	warn "can only reload from main coroutine";
2023	return;	2971	return;
2024	}	2972	}
2025		2973
2026	warn "reloading...";	2974	warn "reloading...";
2027		2975
2028	my $guard = freeze_mainloop;	2976	warn "entering sync_job";
		2977
		2978	cf::sync_job {
		2979	cf::write_runtime; # external watchdog should not bark
2029	cf::emergency_save;	2980	cf::emergency_save;
		2981	cf::write_runtime; # external watchdog should not bark
2030		2982
2031	eval {	2983	warn "syncing database to disk";
		2984	BDB::db_env_txn_checkpoint $DB_ENV;
		2985
2032	# if anything goes wrong in here, we should simply crash as we already saved	2986	# if anything goes wrong in here, we should simply crash as we already saved
2033		2987
2034	# cancel all watchers	2988	warn "cancelling all WF_AUTOCANCEL watchers";
2035	for (Event::all_watchers) {	2989	for (Event::all_watchers) {
2036	$_->cancel if $_->data & WF_AUTOCANCEL;	2990	$_->cancel if $_->data & WF_AUTOCANCEL;
2037	}	2991	}
2038		2992
		2993	warn "flushing outstanding aio requests";
		2994	for (;;) {
		2995	BDB::flush;
		2996	IO::AIO::flush;
		2997	Coro::cede;
		2998	last unless IO::AIO::nreqs || BDB::nreqs;
		2999	warn "iterate...";
		3000	}
		3001
		3002	++$RELOAD;
		3003
2039	# cancel all extension coros	3004	warn "cancelling all extension coros";
2040	$_->cancel for values %EXT_CORO;	3005	$_->cancel for values %EXT_CORO;
2041	%EXT_CORO = ();	3006	%EXT_CORO = ();
2042		3007
2043	# unload all extensions	3008	warn "removing commands";
2044	for (@exts) {	3009	%COMMAND = ();
		3010
		3011	warn "removing ext/exti commands";
		3012	%EXTCMD = ();
		3013	%EXTICMD = ();
		3014
		3015	warn "unloading/nuking all extensions";
		3016	for my $pkg (@EXTS) {
2045	warn "unloading <$_>";	3017	warn "... unloading $pkg";
2046	unload_extension $_;	3018
		3019	if (my $cb = $pkg->can ("unload")) {
		3020	eval {
		3021	$cb->($pkg);
		3022	1
		3023	} or warn "$pkg unloaded, but with errors: $@";
2047	}	3024	}
2048		3025
		3026	warn "... nuking $pkg";
		3027	Symbol::delete_package $pkg;
		3028	}
		3029
2049	# unload all modules loaded from $LIBDIR	3030	warn "unloading all perl modules loaded from $LIBDIR";
2050	while (my ($k, $v) = each %INC) {	3031	while (my ($k, $v) = each %INC) {
2051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3032	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2052		3033
2053	warn "removing <$k>";	3034	warn "... unloading $k";
2054	delete $INC{$k};	3035	delete $INC{$k};
2055		3036
2056	$k =~ s/\.pm$//;	3037	$k =~ s/\.pm$//;
2057	$k =~ s/\//::/g;	3038	$k =~ s/\//::/g;
2058		3039
…		…
2061	}	3042	}
2062		3043
2063	Symbol::delete_package $k;	3044	Symbol::delete_package $k;
2064	}	3045	}
2065		3046
2066	# sync database to disk
2067	cf::db_sync;
2068	IO::AIO::flush;
2069
2070	# get rid of safe::, as good as possible	3047	warn "getting rid of safe::, as good as possible";
2071	Symbol::delete_package "safe::$_"	3048	Symbol::delete_package "safe::$_"
2072	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3049	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2073		3050
2074	# remove register_script_function callbacks
2075	# TODO
2076
2077	# unload cf.pm "a bit"	3051	warn "unloading cf.pm \"a bit\"";
2078	delete $INC{"cf.pm"};	3052	delete $INC{"cf.pm"};
		3053	delete $INC{"cf/pod.pm"};
2079		3054
2080	# don't, removes xs symbols, too,	3055	# don't, removes xs symbols, too,
2081	# and global variables created in xs	3056	# and global variables created in xs
2082	#Symbol::delete_package __PACKAGE__;	3057	#Symbol::delete_package __PACKAGE__;
2083		3058
2084	# reload cf.pm	3059	warn "unload completed, starting to reload now";
		3060
2085	warn "reloading cf.pm";	3061	warn "reloading cf.pm";
2086	require cf;	3062	require cf;
2087	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3063	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2088		3064
2089	# load config and database again	3065	warn "loading config and database again";
2090	cf::cfg_load;	3066	cf::cfg_load;
2091	cf::db_load;
2092		3067
2093	# load extensions
2094	warn "load extensions";	3068	warn "loading extensions";
2095	cf::load_extensions;	3069	cf::load_extensions;
2096		3070
2097	# reattach attachments to objects	3071	warn "reattaching attachments to objects/players";
2098	warn "reattach";	3072	_global_reattach; # objects, sockets
2099	_global_reattach;	3073	warn "reattaching attachments to maps";
2100	};	3074	reattach $_ for values %MAP;
		3075	warn "reattaching attachments to players";
		3076	reattach $_ for values %PLAYER;
2101		3077
2102	if ($@) {	3078	warn "leaving sync_job";
		3079
		3080	1
		3081	} or do {
2103	warn $@;	3082	warn $@;
2104	warn "error while reloading, exiting.";	3083	warn "error while reloading, exiting.";
2105	exit 1;	3084	exit 1;
2106	}	3085	};
2107		3086
2108	warn "reloaded successfully";	3087	warn "reloaded";
2109	};	3088	};
2110		3089
2111	#############################################################################	3090	our $RELOAD_WATCHER; # used only during reload
2112		3091
2113	unless ($LINK_MAP) {	3092	sub reload_perl() {
2114	$LINK_MAP = cf::map::new;	3093	# doing reload synchronously and two reloads happen back-to-back,
		3094	# coro crashes during coro_state_free->destroy here.
2115		3095
2116	$LINK_MAP->width (41);	3096	$RELOAD_WATCHER ||= Event->timer (
2117	$LINK_MAP->height (41);	3097	reentrant => 0,
2118	$LINK_MAP->alloc;
2119	$LINK_MAP->path ("{link}");
2120	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2121	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2122
2123	# dirty hack because... archetypes are not yet loaded
2124	Event->timer (
2125	after => 2,	3098	after => 0,
		3099	data => WF_AUTOCANCEL,
2126	cb => sub {	3100	cb => sub {
2127	$_[0]->w->cancel;	3101	do_reload_perl;
2128		3102	undef $RELOAD_WATCHER;
2129	# provide some exits "home"
2130	my $exit = cf::object::new "exit";
2131
2132	$exit->slaying ($EMERGENCY_POSITION->[0]);
2133	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2134	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2135
2136	$LINK_MAP->insert ($exit->clone, 19, 19);
2137	$LINK_MAP->insert ($exit->clone, 19, 20);
2138	$LINK_MAP->insert ($exit->clone, 19, 21);
2139	$LINK_MAP->insert ($exit->clone, 20, 19);
2140	$LINK_MAP->insert ($exit->clone, 20, 21);
2141	$LINK_MAP->insert ($exit->clone, 21, 19);
2142	$LINK_MAP->insert ($exit->clone, 21, 20);
2143	$LINK_MAP->insert ($exit->clone, 21, 21);
2144
2145	$exit->destroy;
2146	});	3103	},
2147		3104	);
2148	$LINK_MAP->{deny_save} = 1;
2149	$LINK_MAP->{deny_reset} = 1;
2150
2151	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2152	}	3105	}
2153
2154	register "<global>", __PACKAGE__;
2155		3106
2156	register_command "reload" => sub {	3107	register_command "reload" => sub {
2157	my ($who, $arg) = @_;	3108	my ($who, $arg) = @_;
2158		3109
2159	if ($who->flag (FLAG_WIZ)) {	3110	if ($who->flag (FLAG_WIZ)) {
2160	$who->message ("start of reload.");
2161	reload;
2162	$who->message ("end of reload.");	3111	$who->message ("reloading server.");
		3112	async { reload_perl };
2163	}	3113	}
2164	};	3114	};
2165		3115
2166	unshift @INC, $LIBDIR;	3116	unshift @INC, $LIBDIR;
2167		3117
		3118	my $bug_warning = 0;
		3119
		3120	our @WAIT_FOR_TICK;
		3121	our @WAIT_FOR_TICK_BEGIN;
		3122
		3123	sub wait_for_tick {
		3124	return unless $TICK_WATCHER->is_active;
		3125	return if $Coro::current == $Coro::main;
		3126
		3127	my $signal = new Coro::Signal;
		3128	push @WAIT_FOR_TICK, $signal;
		3129	$signal->wait;
		3130	}
		3131
		3132	sub wait_for_tick_begin {
		3133	return unless $TICK_WATCHER->is_active;
		3134	return if $Coro::current == $Coro::main;
		3135
		3136	my $signal = new Coro::Signal;
		3137	push @WAIT_FOR_TICK_BEGIN, $signal;
		3138	$signal->wait;
		3139	}
		3140
		3141	my $min = 1e6;#d#
		3142	my $avg = 10;
2168	$TICK_WATCHER = Event->timer (	3143	$TICK_WATCHER = Event->timer (
2169	reentrant => 0,	3144	reentrant => 0,
		3145	parked => 1,
2170	prio => 0,	3146	prio => 0,
2171	at => $NEXT_TICK || $TICK,	3147	at => $NEXT_TICK || $TICK,
2172	data => WF_AUTOCANCEL,	3148	data => WF_AUTOCANCEL,
2173	cb => sub {	3149	cb => sub {
		3150	if ($Coro::current != $Coro::main) {
		3151	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3152	unless ++$bug_warning > 10;
		3153	return;
		3154	}
		3155
		3156	$NOW = $tick_start = Event::time;
		3157
2174	cf::server_tick; # one server iteration	3158	cf::server_tick; # one server iteration
		3159
		3160	0 && sync_job {#d#
		3161	for(1..10) {
		3162	my $t = Event::time;
		3163	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3164	or die;
		3165
		3166	$map->width (50);
		3167	$map->height (50);
		3168	$map->alloc;
		3169	$map->_load_objects ("/tmp/x.map", 1);
		3170	my $t = Event::time - $t;
		3171
		3172	#next unless $t < 0.0013;#d#
		3173	if ($t < $min) {
		3174	$min = $t;
		3175	}
		3176	$avg = $avg * 0.99 + $t * 0.01;
		3177	}
		3178	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3179	exit 0;
		3180	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3181	};
		3182
2175	$RUNTIME += $TICK;	3183	$RUNTIME += $TICK;
2176	$NEXT_TICK += $TICK;	3184	$NEXT_TICK += $TICK;
2177		3185
		3186	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3187	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3188	Coro::async_pool {
		3189	write_runtime
		3190	or warn "ERROR: unable to write runtime file: $!";
		3191	};
		3192	}
		3193
		3194	# my $AFTER = Event::time;
		3195	# warn $AFTER - $NOW;#d#
		3196
		3197	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3198	$sig->send;
		3199	}
		3200	while (my $sig = shift @WAIT_FOR_TICK) {
		3201	$sig->send;
		3202	}
		3203
		3204	$NOW = Event::time;
		3205
2178	# if we are delayed by four ticks or more, skip them all	3206	# if we are delayed by four ticks or more, skip them all
2179	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3207	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2180		3208
2181	$TICK_WATCHER->at ($NEXT_TICK);	3209	$TICK_WATCHER->at ($NEXT_TICK);
2182	$TICK_WATCHER->start;	3210	$TICK_WATCHER->start;
		3211
		3212	$LOAD = ($NOW - $tick_start) / $TICK;
		3213	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3214
		3215	_post_tick;
		3216
		3217
2183	},	3218	},
2184	);	3219	);
2185		3220
		3221	{
2186	IO::AIO::max_poll_time $TICK * 0.2;	3222	BDB::max_poll_time $TICK * 0.1;
2187		3223	$BDB_POLL_WATCHER = Event->io (
2188	Event->io (	3224	reentrant => 0,
2189	fd => IO::AIO::poll_fileno,	3225	fd => BDB::poll_fileno,
2190	poll => 'r',	3226	poll => 'r',
2191	prio => 5,	3227	prio => 0,
2192	data => WF_AUTOCANCEL,
2193	cb => \&IO::AIO::poll_cb,
2194	);
2195
2196	Event->timer (
2197	data => WF_AUTOCANCEL,	3228	data => WF_AUTOCANCEL,
2198	after => 0,	3229	cb => \&BDB::poll_cb,
2199	interval => 10,	3230	);
2200	cb => sub {	3231	BDB::min_parallel 8;
2201	(Coro::unblock_sub {	3232
2202	write_runtime	3233	BDB::set_sync_prepare {
2203	or warn "ERROR: unable to write runtime file: $!";	3234	my $status;
		3235	my $current = $Coro::current;
		3236	(
		3237	sub {
		3238	$status = $!;
		3239	$current->ready; undef $current;
		3240	},
		3241	sub {
		3242	Coro::schedule while defined $current;
		3243	$! = $status;
		3244	},
		3245	)
		3246	};
		3247
		3248	unless ($DB_ENV) {
		3249	$DB_ENV = BDB::db_env_create;
		3250
		3251	cf::sync_job {
		3252	eval {
		3253	BDB::db_env_open
		3254	$DB_ENV,
		3255	$BDBDIR,
		3256	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3257	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3258	0666;
		3259
		3260	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3261
		3262	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3263	$DB_ENV->set_lk_detect;
		3264	};
		3265
		3266	cf::cleanup "db_env_open(db): $@" if $@;
2204	})->();	3267	};
2205	},	3268	}
2206	);	3269	}
		3270
		3271	{
		3272	IO::AIO::min_parallel 8;
		3273
		3274	undef $Coro::AIO::WATCHER;
		3275	IO::AIO::max_poll_time $TICK * 0.1;
		3276	$AIO_POLL_WATCHER = Event->io (
		3277	reentrant => 0,
		3278	data => WF_AUTOCANCEL,
		3279	fd => IO::AIO::poll_fileno,
		3280	poll => 'r',
		3281	prio => 6,
		3282	cb => \&IO::AIO::poll_cb,
		3283	);
		3284	}
		3285
		3286	my $_log_backtrace;
		3287
		3288	sub _log_backtrace {
		3289	my ($msg, @addr) = @_;
		3290
		3291	$msg =~ s/\n//;
		3292
		3293	# limit the # of concurrent backtraces
		3294	if ($_log_backtrace < 2) {
		3295	++$_log_backtrace;
		3296	async {
		3297	my @bt = fork_call {
		3298	@addr = map { sprintf "%x", $_ } @addr;
		3299	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3300	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3301	or die "addr2line: $!";
		3302
		3303	my @funcs;
		3304	my @res = <$fh>;
		3305	chomp for @res;
		3306	while (@res) {
		3307	my ($func, $line) = splice @res, 0, 2, ();
		3308	push @funcs, "[$func] $line";
		3309	}
		3310
		3311	@funcs
		3312	};
		3313
		3314	LOG llevInfo, "[ABT] $msg\n";
		3315	LOG llevInfo, "[ABT] $_\n" for @bt;
		3316	--$_log_backtrace;
		3317	};
		3318	} else {
		3319	LOG llevInfo, "[ABT] $msg\n";
		3320	LOG llevInfo, "[ABT] [suppressed]\n";
		3321	}
		3322	}
		3323
		3324	# load additional modules
		3325	use cf::pod;
2207		3326
2208	END { cf::emergency_save }	3327	END { cf::emergency_save }
2209		3328
2210	1	3329	1
2211		3330

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