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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.118 by root, Mon Jan 1 21:19:52 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 (2); # 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 $FREEZE;	94
55	our $RANDOM_MAPS = cf::localdir . "/random";	95	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	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 $tick_start; # for load detecting purposes
57		101
58	binmode STDOUT;	102	binmode STDOUT;
59	binmode STDERR;	103	binmode STDERR;
60		104
61	# read virtual server time, if available	105	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
66	}	110	}
67		111
68	mkdir cf::localdir;	112	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		114
74	# a special map that is always available	115	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		116
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	117	sub cf::map::normalise;
78		118
79	#############################################################################	119	#############################################################################
80		120
81	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
82		122
…		…
89	=item $cf::RUNTIME	129	=item $cf::RUNTIME
90		130
91	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
92	every server tick.	132	every server tick.
93		133
94	=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
95		137
96	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		142
99	=item $cf::NOW	143	=item $cf::NOW
100		144
101	The time of the last (current) server tick.	145	The time of the last (current) server tick.
102		146
103	=item $cf::TICK	147	=item $cf::TICK
104		148
105	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.
106		160
107	=item %cf::CFG	161	=item %cf::CFG
108		162
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		171
112	=back	172	=back
113		173
114	=cut	174	=cut
115		175
116	BEGIN {	176	BEGIN {
117	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	178	my $msg = join "", @_;
119	utf8::encode $msg;
120		179
121	$msg .= "\n"	180	$msg .= "\n"
122	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
123		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	186	LOG llevError, $msg;
125	};	187	};
126	}	188	}
127		189
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		197
135	# 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
136	# within the Safe compartment.	199	# within the Safe compartment.
137	for my $pkg (qw(	200	for my $pkg (qw(
138	cf::global cf::attachable	201	cf::global cf::attachable
…		…
147		210
148	$Event::DIED = sub {	211	$Event::DIED = sub {
149	warn "error in event callback: @_";	212	warn "error in event callback: @_";
150	};	213	};
151		214
152	my %ext_pkg;	215	#############################################################################
153	my @exts;
154	my @hook;
155		216
156	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
157		218
158	=over 4	219	=over 4
159		220
160	=cut	221	=item dumpval $ref
161		222
162	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	}
163		243
164	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
165		245
166	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
167		247
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
176		249
177	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
178		251
179	=cut	252	=cut
180		253
181	sub to_json($) {	254	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
183	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
		257	sub from_json ($) { $json_coder->decode ($_[0]) }
		258
		259	=item cf::lock_wait $string
		260
		261	Wait until the given lock is available. See cf::lock_acquire.
		262
		263	=item my $lock = cf::lock_acquire $string
		264
		265	Wait until the given lock is available and then acquires it and returns
		266	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		267	for example when the coroutine gets canceled), the lock is automatically
		268	returned.
		269
		270	Lock names should begin with a unique identifier (for example, cf::map::find
		271	uses map_find and cf::map::load uses map_load).
		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
		277	=cut
		278
		279	our %LOCK;
		280
		281	sub lock_wait($) {
		282	my ($key) = @_;
		283
		284	# wait for lock, if any
		285	while ($LOCK{$key}) {
		286	push @{ $LOCK{$key} }, $Coro::current;
		287	Coro::schedule;
		288	}
184	}	289	}
		290
		291	sub lock_acquire($) {
		292	my ($key) = @_;
		293
		294	# wait, to be sure we are not locked
		295	lock_wait $key;
		296
		297	$LOCK{$key} = [];
		298
		299	Coro::guard {
		300	# wake up all waiters, to be on the safe side
		301	$_->ready for @{ delete $LOCK{$key} };
		302	}
		303	}
		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
		311	sub freeze_mainloop {
		312	return unless $TICK_WATCHER->is_active;
		313
		314	my $guard = Coro::guard {
		315	$TICK_WATCHER->start;
		316	};
		317	$TICK_WATCHER->stop;
		318	$guard
		319	}
		320
		321	=item cf::async { BLOCK }
		322
		323	Currently the same as Coro::async_pool, meaning you cannot use
		324	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		325	thing you are allowed to do is call C<prio> on it.
		326
		327	=cut
		328
		329	BEGIN { *async = \&Coro::async_pool }
185		330
186	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
187		332
188	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
191		337
192	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
195	fast or be very important.	341	fast or be very important.
…		…
198		344
199	sub sync_job(&) {	345	sub sync_job(&) {
200	my ($job) = @_;	346	my ($job) = @_;
201		347
202	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
203	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
205		353
206	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	355	# (but this is cancel-safe)
208	local $FREEZE = 1;	356	my $freeze_guard = freeze_mainloop;
209		357
210	my $busy = 1;	358	my $busy = 1;
211	my @res;	359	my @res;
212		360
213	(Coro::async {	361	(async {
214	@res = eval { $job->() };	362	@res = eval { $job->() };
215	warn $@ if $@;	363	warn $@ if $@;
216	undef $busy;	364	undef $busy;
217	})->prio (Coro::PRIO_MAX);	365	})->prio (Coro::PRIO_MAX);
218		366
219	while ($busy) {	367	while ($busy) {
220	Coro::cede_notself;	368	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	369	}
		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
223		377
224	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
225	} else {	379	} else {
226	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
227		381
228	$job->()	382	$job->()
229	}	383	}
230	}	384	}
231		385
232	=item $coro = cf::coro { BLOCK }	386	=item $coro = cf::async_ext { BLOCK }
233		387
234	Creates and returns a new coro. This coro is automcatially being canceled	388	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	389	extension calling this is being unloaded.
236		390
237	=cut	391	=cut
238		392
239	sub coro(&) {	393	sub async_ext(&) {
240	my $cb = shift;	394	my $cb = shift;
241		395
242	my $coro; $coro = async {	396	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		397
249	$coro->on_destroy (sub {	398	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	399	delete $EXT_CORO{$coro+0};
251	});	400	});
252	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
253		402
254	$coro	403	$coro
255	}	404	}
256		405
257	sub write_runtime {	406	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		407
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
261	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.
262		412
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		414
267	aio_fsync $fh	415	sub _store_scalar {
268	and return;	416	open my $fh, ">", \my $buf
269		417	or die "fork_call: cannot open fh-to-buf in child : $!";
		418	Storable::store_fd $_[0], $fh;
270	close $fh	419	close $fh;
271	or return;
272		420
273	aio_rename "$runtime~", $runtime	421	$buf
274	and return;	422	}
275		423
		424	sub fork_call(&@) {
		425	my ($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 $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
276	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		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 });
277	}	593	}
278		594
279	=back	595	=back
280		596
281	=cut	597	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		598
403	#############################################################################	599	#############################################################################
404		600
405	=head2 ATTACHABLE OBJECTS	601	=head2 ATTACHABLE OBJECTS
406		602
…		…
408	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")
409	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
410		606
411	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>
412	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
413	crossfire+).	609	Crossfire TRT).
414		610
415	=over 4	611	=over 4
416		612
417	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
418		614
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	728	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	729	our @CB_MAP = ();
534		730
535	my %attachment;	731	my %attachment;
536		732
		733	sub cf::attachable::thawer_merge {
		734	# simply override everything except _meta
		735	local $_[0]{_meta};
		736	%{$_[0]} = %{$_[1]};
		737	}
		738
537	sub _attach_cb($$$$) {	739	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	740	my ($registry, $event, $prio, $cb) = @_;
539		741
540	use sort 'stable';	742	use sort 'stable';
541		743
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
576		778
577	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		783
582	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	785	my $pkg = shift @arg;
584		786
585	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
615	}	817	}
616		818
617	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
618	} else {	820	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	822	}
621		823
622	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
623	}	825	}
624		826
…		…
626	if (ref $_[0]) {	828	if (ref $_[0]) {
627	_object_attach @_;	829	_object_attach @_;
628	} else {	830	} else {
629	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
630	}	832	}
		833	_recalc_want;
631	};	834	};
632		835
633	# all those should be optimised	836	# all those should be optimised
634	sub cf::attachable::detach {	837	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
639	reattach ($obj);	842	reattach ($obj);
640	} else {	843	} else {
641	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
642	}	845	}
		846	_recalc_want;
643	};	847	};
644		848
645	sub cf::attachable::attached {	849	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
647		851
…		…
712	# object support	916	# object support
713		917
714	sub reattach {	918	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	919	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	920	my ($obj) = @_;
		921
		922	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		923
718	my $registry = $obj->registry;	924	my $registry = $obj->registry;
719		925
720	@$registry = ();	926	@$registry = ();
721		927
…		…
768	$filename, length $$rdata, scalar @$objs;	974	$filename, length $$rdata, scalar @$objs;
769		975
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	976	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	977	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	978	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	979	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	980	close $fh;
775		981
776	if (@$objs) {	982	if (@$objs) {
777	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) {
778	chmod SAVE_MODE, $fh;	984	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	985	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	986	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	987	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	988	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	989	aio_rename "$filename.pst~", "$filename.pst";
784	}	990	}
785	} else {	991	} else {
786	aio_unlink "$filename.pst";	992	aio_unlink "$filename.pst";
…		…
818	or return;	1024	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1026	}
821		1027
822	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1030	return ($data, $av);
825	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
826		1038
827	#############################################################################	1039	#############################################################################
828	# command handling &c	1040	# command handling &c
829		1041
830	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1056	}
845		1057
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1059
848	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.
849		1065
850	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
851	called.	1067	called.
852		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
853	=cut	1080	=cut
854		1081
855	sub register_extcmd {	1082	sub register_extcmd {
856	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
857		1084
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
862	}	1092	}
863		1093
864	cf::player->attach (	1094	cf::player->attach (
865	on_command => sub {	1095	on_command => sub {
866	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
875	cf::override;	1105	cf::override;
876	},	1106	},
877	on_extcmd => sub {	1107	on_extcmd => sub {
878	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
879		1109
880	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
881		1111
882	if (ref $msg) {	1112	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	1116	}
887	}	1117	}
888	} else {	1118	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1119	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		1121
892	cf::override;	1122	cf::override;
893	},	1123	},
894	);	1124	);
895		1125
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	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($) {
903	my ($path) = @_;	1489	my ($path) = @_;
904		1490
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1491	my ($match, $specificity);
906	my $base = $1;
907	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";
910		1492
911	warn "loading '$path' into '$pkg'\n";	1493	for my $region (list) {
912		1494	if ($region->{match} && $path =~ $region->{match}) {
913	open my $fh, "<:utf8", $path	1495	($match, $specificity) = ($region, $region->specificity)
914	or die "$path: $!";	1496	if $region->specificity > $specificity;
915		1497	}
916	my $source =
917	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })
920	. "\n};\n1";
921
922	eval $source
923	or die $@ ? "$path: $@\n"
924	: "extension disabled.\n";
925
926	push @exts, $pkg;
927	$ext_pkg{$base} = $pkg;
928
929	# no strict 'refs';
930	# @{"$pkg\::ISA"} = ext::;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	1498	}
945		1499
946	# remove commands	1500	$match
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}
971
972	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;
975	eval {
976	load_extension $ext;
977	1
978	} or warn "$ext not loaded: $@";
979	}
980	}
981
982	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019
1020	=head2 CORE EXTENSIONS
1021
1022	Functions and methods that extend core crossfire objects.
1023
1024	=head3 cf::player
1025
1026	=over 4
1027
1028	=item cf::player::exists $login
1029
1030	Returns true when the given account exists.
1031
1032	=cut
1033
1034	sub cf::player::exists($) {
1035	cf::player::find $_[0]
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1037	}
1038
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)
1040
1041	Sends an ext reply to the player.
1042
1043	=cut
1044
1045	sub cf::player::ext_reply($$$%) {
1046	my ($self, $id, %msg) = @_;
1047
1048	$msg{msgid} = $id;
1049
1050	$self->send ("ext " . to_json \%msg);
1051	}	1501	}
1052		1502
1053	=back	1503	=back
1054
1055		1504
1056	=head3 cf::map	1505	=head3 cf::map
1057		1506
1058	=over 4	1507	=over 4
1059		1508
…		…
1062	package cf::map;	1511	package cf::map;
1063		1512
1064	use Fcntl;	1513	use Fcntl;
1065	use Coro::AIO;	1514	use Coro::AIO;
1066		1515
		1516	use overload
		1517	'""' => \&as_string,
		1518	fallback => 1;
		1519
1067	our $MAX_RESET = 7200;	1520	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1521	our $DEFAULT_RESET = 3000;
1069		1522
1070	sub generate_random_map {	1523	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1524	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1525	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1526	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1527	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1528	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1529	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1530	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1531	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1532	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1533	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1534	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$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},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(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"
1087	}	1666	}
1088		1667
1089	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1090	# all maps in C++...	1669	# all maps in C++...
1091	sub change_all_map_light {	1670	sub change_all_map_light {
1092	my ($change) = @_;	1671	my ($change) = @_;
1093		1672
1094	$_->change_map_light ($change) for values %cf::MAP;	1673	$_->change_map_light ($change)
		1674	for grep $_->outdoor, values %cf::MAP;
1095	}	1675	}
1096		1676
		1677	sub decay_objects {
		1678	my ($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
1097	sub try_load_header($) {	1693	sub load_header_from($) {
1098	my ($path) = @_;	1694	my ($self, $path) = @_;
1099		1695
1100	utf8::encode $path;	1696	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
		1698	# or return;
		1699
		1700	$self->_load_header ($path)
1102	or return;	1701	or return;
1103		1702
1104	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
1105	or return;	1746	or return;
		1747	$self->prepare_orig;
		1748	}
1106		1749
1107	$map->load_header ($path)	1750	$self->{deny_reset} = 1
1108	or return;	1751	if $self->no_reset;
1109		1752
1110	$map->{load_path} = $path;	1753	$self->default_region (cf::region::find_by_path $self->{path})
		1754	unless $self->default_region;
1111		1755
1112	$map	1756	1
1113	}	1757	}
1114		1758
		1759	sub find;
1115	sub find_map {	1760	sub find {
1116	my ($path, $origin) = @_;	1761	my ($path, $origin) = @_;
1117		1762
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1763	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1764
		1765	cf::lock_wait "map_find:$path";
		1766
1123	$cf::MAP{$key} || do {	1767	$cf::MAP{$path} || do {
1124	# do it the slow way	1768	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1769	my $map = new_from_path cf::map $path
1126
1127	if ($map) {
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1770	or return;
1139		1771
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1773
1154	if ($map->should_reset) {	1774	$map->load_header
		1775	or return;
		1776
		1777	if ($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;
1155	$map->reset;	1780	$map->reset;
1156	$map = find_map $path;	1781	undef $guard;
		1782	return find $path;
1157	}	1783	}
1158		1784
1159	$cf::MAP{$key} = $map	1785	$cf::MAP{$path} = $map
1160	}	1786	}
1161	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1162		1791
1163	sub load {	1792	sub load {
1164	my ($self) = @_;	1793	my ($self) = @_;
1165		1794
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1795	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1796
1170	my $path = $self->{path};	1797	my $path = $self->{path};
1171		1798
		1799	{
		1800	my $guard = cf::lock_acquire "map_load:$path";
		1801
		1802	return if $self->in_memory != cf::MAP_SWAPPED;
		1803
		1804	$self->in_memory (cf::MAP_LOADING);
		1805
1172	$self->alloc;	1806	$self->alloc;
		1807
		1808	$self->pre_load;
		1809	Coro::cede;
		1810
1173	$self->load_objects ($self->{load_path}, 1)	1811	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1812	or return;
1175		1813
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1815	if delete $self->{load_original};
1178		1816
1179	if (my $uniq = $path->uniq_path) {	1817	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1818	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1819	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1820	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1821	$self->_load_objects ($uniq, 0);
1184	}	1822	}
1185	}	1823	}
1186		1824
		1825	Coro::cede;
1187	# now do the right thing for maps	1826	# now do the right thing for maps
1188	$self->link_multipart_objects;	1827	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1199	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;
1200	$self->activate;	1839	$self->activate;
1201	}	1840	}
1202		1841
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1842	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1843	}
1205		1844
1206	sub load_map_sync {	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	$neigh->load;
		1881	}
		1882	}
		1883
		1884	sub find_sync {
1207	my ($path, $origin) = @_;	1885	my ($path, $origin) = @_;
1208		1886
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1887	cf::sync_job { find $path, $origin }
		1888	}
1210		1889
1211	cf::sync_job {	1890	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1891	my ($map) = @_;
1213	or return;	1892
		1893	cf::sync_job { $map->load };
		1894	}
		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;
1214	$map->load;	1914	$map->load;
1215	$map	1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
1216	}	1920	};
		1921	$MAP_PREFETCHER->prio (6);
		1922
		1923	()
1217	}	1924	}
1218		1925
1219	sub save {	1926	sub save {
1220	my ($self) = @_;	1927	my ($self) = @_;
1221		1928
		1929	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1930
1222	$self->{last_save} = $cf::RUNTIME;	1931	$self->{last_save} = $cf::RUNTIME;
1223		1932
1224	return unless $self->dirty;	1933	return unless $self->dirty;
1225		1934
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1936	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1937
1229	$self->{load_path} = $save;	1938	$self->{load_path} = $save;
1230		1939
1231	return if $self->{deny_save};	1940	return if $self->{deny_save};
1232		1941
		1942	local $self->{last_access} = $self->last_access;#d#
		1943
		1944	cf::async {
		1945	$_->contr->save for $self->players;
		1946	};
		1947
1233	if ($uniq) {	1948	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1949	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1950	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1951	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1952	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1953	}
1239	}	1954	}
1240		1955
1241	sub swap_out {	1956	sub swap_out {
1242	my ($self) = @_;	1957	my ($self) = @_;
		1958
		1959	# save first because save cedes
		1960	$self->save;
		1961
		1962	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1963
1244	return if $self->players;	1964	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1965	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1966	return if $self->{deny_save};
1247		1967
1248	$self->save;
1249	$self->clear;	1968	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1969	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1970	}
1252		1971
1253	sub reset_at {	1972	sub reset_at {
1254	my ($self) = @_;	1973	my ($self) = @_;
1255		1974
1256	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};
1258	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1259		1977
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1980
…		…
1267	my ($self) = @_;	1985	my ($self) = @_;
1268		1986
1269	$self->reset_at <= $cf::RUNTIME	1987	$self->reset_at <= $cf::RUNTIME
1270	}	1988	}
1271		1989
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	1990	sub reset {
1294	my ($self) = @_;	1991	my ($self) = @_;
1295		1992
		1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1994
1296	return if $self->players;	1995	return if $self->players;
1297	return if $self->{path}{user_rel};#d#
1298		1996
1299	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	}
1300		2008
1301	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
		2010
		2011	$self->clear;
1302		2012
1303	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1304		2014
1305	$self->unlink_save;	2015	$self->unlink_save;
1306	$self->destroy;	2016	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	2019	my $nuke_counter = "aaaa";
1310		2020
1311	sub nuke {	2021	sub nuke {
1312	my ($self) = @_;	2022	my ($self) = @_;
1313		2023
		2024	delete $cf::MAP{$self->path};
		2025
		2026	$self->unlink_save;
		2027
		2028	bless $self, "cf::map";
		2029	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	2030	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	2031	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	2032	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2033
		2034	$cf::MAP{$self->path} = $self;
		2035
1317	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1318	}	2037	}
1319		2038
1320	sub customise_for {	2039	=item $maps = cf::map::tmp_maps
1321	my ($map, $ob) = @_;
1322		2040
1323	if ($map->per_player) {	2041	Returns an arrayref with all map paths of currently instantiated and saved
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
1325	}	2047	[
1326		2048	map {
1327	$map	2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
1328	}	2055	}
1329		2056
1330	sub emergency_save {	2057	=item $maps = cf::map::random_maps
1331	local $cf::FREEZE = 1;
1332		2058
1333	warn "enter emergency map save\n";	2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
1334		2061
1335	cf::sync_job {	2062	=cut
1336	warn "begin emergency map save\n";
1337	$_->save for values %cf::MAP;
1338	};
1339		2063
1340	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	]
1341	}	2091	}
1342		2092
1343	package cf;	2093	package cf;
1344		2094
1345	=back	2095	=back
1346		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
1347		2123
1348	=head3 cf::object::player	2124	=head3 cf::object::player
1349		2125
1350	=over 4	2126	=over 4
1351		2127
…		…
1365		2141
1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1367		2143
1368	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1369	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1370	} 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 {
1371	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1372	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1373	}	2163	}
1374	}	2164	}
1375		2165
1376	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1377		2167
…		…
1391		2181
1392	=item $player_object->enter_link	2182	=item $player_object->enter_link
1393		2183
1394	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}>).
1395		2185
1396	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
1397	I<MUST> call C<leave_link> as soon as possible, though.	2187	I<MUST> call C<leave_link> as soon as possible, though.
1398		2188
		2189	Will never block.
		2190
1399	=item $player_object->leave_link ($map, $x, $y)	2191	=item $player_object->leave_link ($map, $x, $y)
1400		2192
1401	Moves the player out of the specila link map onto the given map. If the	2193	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	2194	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	2195	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	2196	fails, to the emergency map position.
1405		2197
1406	Might block.	2198	Might block.
1407		2199
1408	=cut	2200	=cut
		2201
		2202	sub link_map {
		2203	unless ($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	$LINK_MAP
		2210	}
1409		2211
1410	sub cf::object::player::enter_link {	2212	sub cf::object::player::enter_link {
1411	my ($self) = @_;	2213	my ($self) = @_;
1412		2214
1413	return if $self->map == $LINK_MAP;
1414
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;
1417
1418	$self->enter_map ($LINK_MAP, 20, 20);
1419	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
		2216
		2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2218
		2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2220	if $self->map && $self->map->{path} ne "{link}";
		2221
		2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1420	}	2223	}
1421		2224
1422	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1424		2229
1425	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1426		2231
1427	unless ($map) {	2232	unless ($map) {
1428	# restore original map position	2233	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	2234	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	2235	$map = cf::map::find $map;
1431		2236
1432	unless ($map) {	2237	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	2238	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	2239	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	2240	or die "FATAL: cannot load emergency map\n";
1436	}	2241	}
1437	}	2242	}
1438		2243
1439	($x, $y) = (-1, -1)	2244	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	2247	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	2248	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	2249	if $x <=0 && $y <= 0;
1445		2250
1446	$map->load;	2251	$map->load;
		2252	$map->load_diag;
1447		2253
		2254	return unless $self->contr->active;
1448	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1450	}	2259	}
1451		2260
1452	=item $player_object->goto_map ($path, $x, $y)	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1453		2262
1454	=cut	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.
1455		2267
		2268	=cut
		2269
		2270	our $GOTOGEN;
		2271
1456	sub cf::object::player::goto_map {	2272	sub cf::object::player::goto {
1457	my ($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;
1458		2277
1459	$self->enter_link;	2278	$self->enter_link;
1460		2279
1461	(Coro::async {	2280	(async {
1462	$path = new cf::path $path;	2281	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	2282	my $map = cf::map::find $path;
1465	$map = $map->customise_for ($self) if $map;
1466		2283
1467	warn "entering ", $map->path, " at ($x, $y)\n"
1468	if $map;	2284	if ($map) {
1469		2285	$map = $map->customise_for ($self);
		2286	$map = $check->($map) if $check && $map;
		2287	} else {
1470	$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	}
1471		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};
1472	$self->leave_link ($map, $x, $y);	2301	$self->leave_link ($map, $x, $y);
		2302	}
1473	})->prio (1);	2303	})->prio (1);
1474	}	2304	}
1475		2305
1476	=item $player_object->enter_exit ($exit_object)	2306	=item $player_object->enter_exit ($exit_object)
1477		2307
…		…
1479		2309
1480	sub parse_random_map_params {	2310	sub parse_random_map_params {
1481	my ($spec) = @_;	2311	my ($spec) = @_;
1482		2312
1483	my $rmp = { # defaults	2313	my $rmp = { # defaults
1484	xsize => 10,	2314	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2315	ysize => (cf::rndm 15, 40),
		2316	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2317	#layout => string,
1486	};	2318	};
1487		2319
1488	for (split /\n/, $spec) {	2320	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2321	my ($k, $v) = split /\s+/, $_, 2;
1490		2322
…		…
1494	$rmp	2326	$rmp
1495	}	2327	}
1496		2328
1497	sub prepare_random_map {	2329	sub prepare_random_map {
1498	my ($exit) = @_;	2330	my ($exit) = @_;
		2331
		2332	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2333
1500	# all this does is basically replace the /! path by	2334	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2335	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2336	# that depends on the exit object
1503		2337
1504	my $rmp = parse_random_map_params $exit->msg;	2338	my $rmp = parse_random_map_params $exit->msg;
1505		2339
1506	if ($exit->map) {	2340	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2341	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2342	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2343	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2344	$rmp->{origin_y} = $exit->y;
1511	}	2345	}
1512		2346
1513	$rmp->{random_seed} ||= $exit->random_seed;	2347	$rmp->{random_seed} ||= $exit->random_seed;
1514		2348
1515	my $data = cf::to_json $rmp;	2349	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2350	my $md5 = Digest::MD5::md5_hex $data;
		2351	my $meta = "$RANDOMDIR/$md5.meta";
1517		2352
1518	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) {
1519	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;
1520		2357
1521	$exit->slaying ("?random/$md5");	2358	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2359	$exit->msg (undef);
1523	}	2360	}
1524	}	2361	}
…		…
1526	sub cf::object::player::enter_exit {	2363	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2364	my ($self, $exit) = @_;
1528		2365
1529	return unless $self->type == cf::PLAYER;	2366	return unless $self->type == cf::PLAYER;
1530		2367
		2368	if ($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
1531	$self->enter_link;	2379	$self->enter_link;
1532		2380
		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
1533	(Coro::async {	2385	(async {
		2386	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2387	unless (eval {
1535		2388	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		2389
1542	1;	2390	1;
1543	}) {	2391	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2392	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "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. "
1546	. "Please report this to the dungeon master",	2394	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2395	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2396
1549	warn "ERROR in enter_exit: $@";	2397	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2398	$self->leave_link;
1551	}	2399	}
1552	})->prio (1);	2400	})->prio (1);
…		…
1565		2413
1566	sub cf::client::send_drawinfo {	2414	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2415	my ($self, $text, $flags) = @_;
1568		2416
1569	utf8::encode $text;	2417	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2418	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2419	}
1572		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	}
1573		2475
1574	=item $success = $client->query ($flags, "text", \&cb)	2476	=item $success = $client->query ($flags, "text", \&cb)
1575		2477
1576	Queues a query to the client, calling the given callback with	2478	Queues a query to the client, calling the given callback with
1577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2479	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1578	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>.
1579		2481
1580	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
1581	reliable at some point in the future.	2483	become reliable at some point in the future.
1582		2484
1583	=cut	2485	=cut
1584		2486
1585	sub cf::client::query {	2487	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	2488	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	2496	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2497	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		2498
1597	$self->send_packet ($self->{query_queue}[0][0])	2499	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	2500	if @{ $self->{query_queue} } == 1;
		2501
		2502	1
1599	}	2503	}
1600		2504
1601	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	},
1602	on_reply => sub {	2511	on_reply => sub {
1603	my ($ns, $msg) = @_;	2512	my ($ns, $msg) = @_;
1604		2513
1605	# this weird shuffling is so that direct followup queries	2514	# this weird shuffling is so that direct followup queries
1606	# get handled first	2515	# get handled first
1607	my $queue = delete $ns->{query_queue};	2516	my $queue = delete $ns->{query_queue}
		2517	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2518
1609	(shift @$queue)->[1]->($msg);	2519	(shift @$queue)->[1]->($msg);
		2520	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2521
1611	push @{ $ns->{query_queue} }, @$queue;	2522	push @{ $ns->{query_queue} }, @$queue;
1612		2523
1613	if (@{ $ns->{query_queue} } == @$queue) {	2524	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2525	if (@$queue) {
…		…
1616	} else {	2527	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2528	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	2529	}
1619	}	2530	}
1620	},	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	},
1621	);	2550	);
1622		2551
1623	=item $client->coro (\&cb)	2552	=item $client->async (\&cb)
1624		2553
1625	Create a new coroutine, running the specified callback. The coroutine will	2554	Create a new coroutine, running the specified callback. The coroutine will
1626	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,
1627	or loss of connection).	2556	or loss of connection).
1628		2557
1629	=cut	2558	=cut
1630		2559
1631	sub cf::client::coro {	2560	sub cf::client::async {
1632	my ($self, $cb) = @_;	2561	my ($self, $cb) = @_;
1633		2562
1634	my $coro; $coro = async {	2563	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2564
1641	$coro->on_destroy (sub {	2565	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2566	delete $self->{_coro}{$coro+0};
1643	});	2567	});
1644		2568
…		…
1677		2601
1678	# here we export the classes and methods available to script code	2602	# here we export the classes and methods available to script code
1679		2603
1680	=pod	2604	=pod
1681		2605
1682	The following fucntions and emthods are available within a safe environment:	2606	The following functions and methods are available within a safe environment:
1683		2607
1684	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
1685	cf::object::player player	2612	cf::object::player
1686	cf::player peaceful	2613	player
1687	cf::map trigger	2614
		2615	cf::player
		2616	peaceful
		2617
		2618	cf::map
		2619	trigger
1688		2620
1689	=cut	2621	=cut
1690		2622
1691	for (	2623	for (
1692	["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)],
1693	["cf::object::player" => qw(player)],	2626	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	2627	["cf::player" => qw(peaceful)],
1695	["cf::map" => qw(trigger)],	2628	["cf::map" => qw(trigger)],
1696	) {	2629	) {
1697	no strict 'refs';	2630	no strict 'refs';
…		…
1768	=back	2701	=back
1769		2702
1770	=cut	2703	=cut
1771		2704
1772	#############################################################################	2705	#############################################################################
		2706	# the server's init and main functions
1773		2707
1774	=head2 EXTENSION DATABASE SUPPORT	2708	sub load_facedata($) {
		2709	my ($path) = @_;
1775		2710
1776	Crossfire maintains a very simple database for extension use. It can	2711	warn "loading facedata from $path\n";
1777	currently store anything that can be serialised using Storable, which
1778	excludes objects.
1779		2712
1780	The parameter C<$family> should best start with the name of the extension	2713	my $facedata;
1781	using it, it should be unique.	2714	0 < aio_load $path, $facedata
		2715	or die "$path: $!";
1782		2716
1783	=over 4	2717	$facedata = Coro::Storable::thaw $facedata;
1784		2718
1785	=item $hashref = cf::db_get $family	2719	$facedata->{version} == 2
		2720	or cf::cleanup "$path: version mismatch, cannot proceed.";
1786		2721
1787	Return a hashref for use by the extension C<$family>, which can be
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790
1791	=item $value = cf::db_get $family => $key
1792
1793	Returns a single value from the database
1794
1795	=item cf::db_put $family => $hashref
1796
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799
1800	=item cf::db_put $family => $key => $value
1801
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812
1813	=cut
1814
1815	our $DB;
1816
1817	{
1818	my $path = cf::localdir . "/database.pst";
1819
1820	sub db_load() {
1821	warn "loading database $path\n";#d# remove later
1822	$DB = stat $path ? Storable::retrieve $path : { };
1823	}	2722	{
		2723	my $faces = $facedata->{faceinfo};
1824		2724
1825	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};
1826		2731
1827	sub db_save() {	2732	cf::cede_to_tick;
1828	warn "saving database $path\n";#d# remove later
1829	waitpid $pid, 0 if $pid;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});
1848
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}
1853
1854	sub db_get($;$) {
1855	@_ >= 2
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859
1860	sub db_put($$;$) {
1861	if (@_ >= 3) {
1862	$DB->{$_[0]}{$_[1]} = $_[2];
1863	} else {
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868
1869	cf::global->attach (
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	2733	}
1874	);
1875	}
1876		2734
1877	#############################################################################	2735	while (my ($face, $info) = each %$faces) {
1878	# 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	}
1879		2832
1880	sub cfg_load {	2833	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2834	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2835	or return;
1883		2836
1884	local $/;	2837	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2838	*CFG = YAML::Syck::Load <$fh>;
		2839
		2840	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2841
		2842	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2843	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2844
		2845	if (exists $CFG{mlockall}) {
		2846	eval {
		2847	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2848	and die "WARNING: m(un)lockall failed: $!\n";
		2849	};
		2850	warn $@ if $@;
		2851	}
1886	}	2852	}
1887		2853
1888	sub main {	2854	sub main {
1889	# we must not ever block the main coroutine	2855	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2856	local $Coro::idle = sub {
1891	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#
1892	(Coro::unblock_sub {	2858	(async {
1893	Event::one_event;	2859	Event::one_event;
1894	})->();	2860	})->prio (Coro::PRIO_MAX);
1895	};	2861	};
1896		2862
1897	cfg_load;	2863	cfg_load;
1898	db_load;	2864	db_init;
1899	load_extensions;	2865	load_extensions;
		2866
		2867	$TICK_WATCHER->start;
1900	Event::loop;	2868	Event::loop;
1901	}	2869	}
1902		2870
1903	#############################################################################	2871	#############################################################################
1904	# initialisation	2872	# initialisation and cleanup
1905		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 $make_core;
		2965	}
		2966
1906	sub reload() {	2967	sub do_reload_perl() {
1907	# can/must only be called in main	2968	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2969	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2970	warn "can only reload from main coroutine";
1910	return;	2971	return;
1911	}	2972	}
1912		2973
1913	warn "reloading...";	2974	warn "reloading...";
1914		2975
1915	local $FREEZE = 1;	2976	warn "entering sync_job";
		2977
		2978	cf::sync_job {
		2979	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	2980	cf::emergency_save;
		2981	cf::write_runtime; # external watchdog should not bark
1917		2982
1918	eval {	2983	warn "syncing database to disk";
		2984	BDB::db_env_txn_checkpoint $DB_ENV;
		2985
1919	# 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
1920		2987
1921	# cancel all watchers	2988	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	2989	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	2990	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	2991	}
1925		2992
		2993	warn "flushing outstanding aio requests";
		2994	for (;;) {
		2995	BDB::flush;
		2996	IO::AIO::flush;
		2997	Coro::cede;
		2998	last unless IO::AIO::nreqs || BDB::nreqs;
		2999	warn "iterate...";
		3000	}
		3001
		3002	++$RELOAD;
		3003
1926	# cancel all extension coros	3004	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	3005	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	3006	%EXT_CORO = ();
1929		3007
1930	# unload all extensions	3008	warn "removing commands";
1931	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 $pkg (@EXTS) {
1932	warn "unloading <$_>";	3017	warn "... unloading $pkg";
1933	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: $@";
1934	}	3024	}
1935		3025
		3026	warn "... nuking $pkg";
		3027	Symbol::delete_package $pkg;
		3028	}
		3029
1936	# unload all modules loaded from $LIBDIR	3030	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	3031	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3032	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		3033
1940	warn "removing <$k>";	3034	warn "... unloading $k";
1941	delete $INC{$k};	3035	delete $INC{$k};
1942		3036
1943	$k =~ s/\.pm$//;	3037	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	3038	$k =~ s/\//::/g;
1945		3039
…		…
1948	}	3042	}
1949		3043
1950	Symbol::delete_package $k;	3044	Symbol::delete_package $k;
1951	}	3045	}
1952		3046
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	3047	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	3048	Symbol::delete_package "safe::$_"
1959	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);
1960		3050
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	3051	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	3052	delete $INC{"cf.pm"};
		3053	delete $INC{"cf/pod.pm"};
1966		3054
1967	# don't, removes xs symbols, too,	3055	# don't, removes xs symbols, too,
1968	# and global variables created in xs	3056	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	3057	#Symbol::delete_package __PACKAGE__;
1970		3058
1971	# reload cf.pm	3059	warn "unload completed, starting to reload now";
		3060
1972	warn "reloading cf.pm";	3061	warn "reloading cf.pm";
1973	require cf;	3062	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3063	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		3064
1976	# load config and database again	3065	warn "loading config and database again";
1977	cf::cfg_load;	3066	cf::cfg_load;
1978	cf::db_load;
1979		3067
1980	# load extensions
1981	warn "load extensions";	3068	warn "loading extensions";
1982	cf::load_extensions;	3069	cf::load_extensions;
1983		3070
1984	# reattach attachments to objects	3071	warn "reattaching attachments to objects/players";
1985	warn "reattach";	3072	_global_reattach; # objects, sockets
1986	_global_reattach;	3073	warn "reattaching attachments to maps";
1987	};	3074	reattach $_ for values %MAP;
		3075	warn "reattaching attachments to players";
		3076	reattach $_ for values %PLAYER;
1988		3077
1989	if ($@) {	3078	warn "leaving sync_job";
		3079
		3080	1
		3081	} or do {
1990	warn $@;	3082	warn $@;
1991	warn "error while reloading, exiting.";	3083	warn "error while reloading, exiting.";
1992	exit 1;	3084	exit 1;
1993	}	3085	};
1994		3086
1995	warn "reloaded successfully";	3087	warn "reloaded";
1996	};	3088	};
1997		3089
1998	#############################################################################	3090	our $RELOAD_WATCHER; # used only during reload
1999		3091
2000	unless ($LINK_MAP) {	3092	sub reload_perl() {
2001	$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.
2002		3095
2003	$LINK_MAP->width (41);	3096	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	3097	reentrant => 0,
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,	3098	after => 0,
		3099	data => WF_AUTOCANCEL,
2013	cb => sub {	3100	cb => sub {
2014	$_[0]->w->cancel;	3101	do_reload_perl;
2015		3102	undef $RELOAD_WATCHER;
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});	3103	},
2034		3104	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	3105	}
2040
2041	register "<global>", __PACKAGE__;
2042		3106
2043	register_command "reload" => sub {	3107	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	3108	my ($who, $arg) = @_;
2045		3109
2046	if ($who->flag (FLAG_WIZ)) {	3110	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	3111	$who->message ("reloading server.");
		3112	async { reload_perl };
2050	}	3113	}
2051	};	3114	};
2052		3115
2053	unshift @INC, $LIBDIR;	3116	unshift @INC, $LIBDIR;
2054		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;
2055	$TICK_WATCHER = Event->timer (	3143	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	3144	reentrant => 0,
		3145	parked => 1,
2057	prio => 0,	3146	prio => 0,
2058	at => $NEXT_TICK || $TICK,	3147	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	3148	data => WF_AUTOCANCEL,
2060	cb => sub {	3149	cb => sub {
2061	unless ($FREEZE) {	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
2062	cf::server_tick; # one server iteration	3158	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;	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
2064	}	3181	};
2065		3182
		3183	$RUNTIME += $TICK;
2066	$NEXT_TICK += $TICK;	3184	$NEXT_TICK += $TICK;
2067		3185
		3186	if ($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
2068	# 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
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3207	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		3208
2071	$TICK_WATCHER->at ($NEXT_TICK);	3209	$TICK_WATCHER->at ($NEXT_TICK);
2072	$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
2073	},	3218	},
2074	);	3219	);
2075		3220
		3221	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	3222	BDB::max_poll_time $TICK * 0.1;
2077		3223	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	3224	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	3225	fd => BDB::poll_fileno,
2080	poll => 'r',	3226	poll => 'r',
2081	prio => 5,	3227	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	3228	data => WF_AUTOCANCEL,
2088	after => 0,	3229	cb => \&BDB::poll_cb,
2089	interval => 10,	3230	);
2090	cb => sub {	3231	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	3232
2092	write_runtime	3233	BDB::set_sync_prepare {
2093	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 $@;
2094	})->();	3267	};
2095	},	3268	}
2096	);	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;
		3326
		3327	END { cf::emergency_save }
2097		3328
2098	1	3329	1
2099		3330

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