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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 1.300 by root, Tue Jul 10 06:44:29 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;
25		34
		35	# configure various modules to our taste
		36	#
		37	$Storable::canonical = 1; # reduce rsync transfers
		38	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		39	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		40
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	41	$Event::Eval = 1; # no idea why this is required, but it is
27		42
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
30		45
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		47
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		49
35	our %COMMAND = ();	50	our %COMMAND = ();
36	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
		52
		53	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
		56	our %EXT_CORO = (); # coroutines bound to extensions
		57	our %EXT_MAP = (); # pluggable maps
38		58
		59	our $RELOAD; # number of reloads so far
39	our @EVENT;	60	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		61
42	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	78	our $NEXT_TICK;
45	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $DB_ENV;
46		84
47	our %CFG;	85	our %CFG;
48		86
49	our $UPTIME; $UPTIME ||= time;	87	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	88	our $RUNTIME;
51		89
		90	our %PLAYER; # all users
52	our %MAP; # all maps	91	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	92	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	93
55	our $RANDOM_MAPS = cf::localdir . "/random";	94	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	95	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		96
		97	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		98	our $LOADAVG; # same thing, but with alpha-smoothing
		99	our $tick_start; # for load detecting purposes
57		100
58	binmode STDOUT;	101	binmode STDOUT;
59	binmode STDERR;	102	binmode STDERR;
60		103
61	# read virtual server time, if available	104	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	105	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	106	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	107	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	108	$RUNTIME = <$fh> + 0.;
66	}	109	}
67		110
68	mkdir cf::localdir;	111	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	112	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		113
74	# a special map that is always available	114	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		115
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	116	sub cf::map::normalise;
78		117
79	#############################################################################	118	#############################################################################
80		119
81	=head2 GLOBAL VARIABLES	120	=head2 GLOBAL VARIABLES
82		121
…		…
89	=item $cf::RUNTIME	128	=item $cf::RUNTIME
90		129
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	130	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	131	every server tick.
93		132
94	=item $cf::LIBDIR	133	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		134	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		135	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		136
96	The perl library directory, where extensions and cf-specific modules can	137	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	138	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		139	unique-items directory, player file directory, random maps directory and
		140	database environment.
98		141
99	=item $cf::NOW	142	=item $cf::NOW
100		143
101	The time of the last (current) server tick.	144	The time of the last (current) server tick.
102		145
103	=item $cf::TICK	146	=item $cf::TICK
104		147
105	The interval between server ticks, in seconds.	148	The interval between server ticks, in seconds.
		149
		150	=item $cf::LOADAVG
		151
		152	The current CPU load on the server (alpha-smoothed), as a value between 0
		153	(none) and 1 (overloaded), indicating how much time is spent on processing
		154	objects per tick. Healthy values are < 0.5.
		155
		156	=item $cf::LOAD
		157
		158	The raw value load value from the last tick.
106		159
107	=item %cf::CFG	160	=item %cf::CFG
108		161
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	162	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	163	from wherever your confdir points to.
		164
		165	=item cf::wait_for_tick, cf::wait_for_tick_begin
		166
		167	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		168	returns directly I<after> the tick processing (and consequently, can only wake one process
		169	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		170
112	=back	171	=back
113		172
114	=cut	173	=cut
115		174
116	BEGIN {	175	BEGIN {
117	*CORE::GLOBAL::warn = sub {	176	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	177	my $msg = join "", @_;
119	utf8::encode $msg;
120		178
121	$msg .= "\n"	179	$msg .= "\n"
122	unless $msg =~ /\n$/;	180	unless $msg =~ /\n$/;
123		181
		182	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		183
		184	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	185	LOG llevError, $msg;
125	};	186	};
126	}	187	}
127		188
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	189	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	190	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	191	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	192	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	193	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		194	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	195	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		196
135	# we bless all objects into (empty) derived classes to force a method lookup	197	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	198	# within the Safe compartment.
137	for my $pkg (qw(	199	for my $pkg (qw(
138	cf::global cf::attachable	200	cf::global cf::attachable
…		…
147		209
148	$Event::DIED = sub {	210	$Event::DIED = sub {
149	warn "error in event callback: @_";	211	warn "error in event callback: @_";
150	};	212	};
151		213
152	my %ext_pkg;	214	#############################################################################
153	my @exts;
154	my @hook;
155		215
156	=head2 UTILITY FUNCTIONS	216	=head2 UTILITY FUNCTIONS
157		217
158	=over 4	218	=over 4
159		219
160	=cut	220	=item dumpval $ref
161		221
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	222	=cut
		223
		224	sub dumpval {
		225	eval {
		226	local $SIG{__DIE__};
		227	my $d;
		228	if (1) {
		229	$d = new Data::Dumper([$_[0]], ["*var"]);
		230	$d->Terse(1);
		231	$d->Indent(2);
		232	$d->Quotekeys(0);
		233	$d->Useqq(1);
		234	#$d->Bless(...);
		235	$d->Seen($_[1]) if @_ > 1;
		236	$d = $d->Dump();
		237	}
		238	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		239	$d
		240	} || "[unable to dump $_[0]: '$@']";
		241	}
163		242
164	=item $ref = cf::from_json $json	243	=item $ref = cf::from_json $json
165		244
166	Converts a JSON string into the corresponding perl data structure.	245	Converts a JSON string into the corresponding perl data structure.
167		246
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	247	=item $json = cf::to_json $ref
176		248
177	Converts a perl data structure into its JSON representation.	249	Converts a perl data structure into its JSON representation.
178		250
179	=cut	251	=cut
180		252
181	sub to_json($) {	253	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	254
183	JSON::Syck::Dump $_[0]	255	sub to_json ($) { $json_coder->encode ($_[0]) }
		256	sub from_json ($) { $json_coder->decode ($_[0]) }
		257
		258	=item cf::lock_wait $string
		259
		260	Wait until the given lock is available. See cf::lock_acquire.
		261
		262	=item my $lock = cf::lock_acquire $string
		263
		264	Wait until the given lock is available and then acquires it and returns
		265	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		266	for example when the coroutine gets canceled), the lock is automatically
		267	returned.
		268
		269	Lock names should begin with a unique identifier (for example, cf::map::find
		270	uses map_find and cf::map::load uses map_load).
		271
		272	=item $locked = cf::lock_active $string
		273
		274	Return true if the lock is currently active, i.e. somebody has locked it.
		275
		276	=cut
		277
		278	our %LOCK;
		279
		280	sub lock_wait($) {
		281	my ($key) = @_;
		282
		283	# wait for lock, if any
		284	while ($LOCK{$key}) {
		285	push @{ $LOCK{$key} }, $Coro::current;
		286	Coro::schedule;
		287	}
184	}	288	}
		289
		290	sub lock_acquire($) {
		291	my ($key) = @_;
		292
		293	# wait, to be sure we are not locked
		294	lock_wait $key;
		295
		296	$LOCK{$key} = [];
		297
		298	Coro::guard {
		299	# wake up all waiters, to be on the safe side
		300	$_->ready for @{ delete $LOCK{$key} };
		301	}
		302	}
		303
		304	sub lock_active($) {
		305	my ($key) = @_;
		306
		307	! ! $LOCK{$key}
		308	}
		309
		310	sub freeze_mainloop {
		311	return unless $TICK_WATCHER->is_active;
		312
		313	my $guard = Coro::guard {
		314	$TICK_WATCHER->start;
		315	};
		316	$TICK_WATCHER->stop;
		317	$guard
		318	}
		319
		320	=item cf::async { BLOCK }
		321
		322	Currently the same as Coro::async_pool, meaning you cannot use
		323	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		324	thing you are allowed to do is call C<prio> on it.
		325
		326	=cut
		327
		328	BEGIN { *async = \&Coro::async_pool }
185		329
186	=item cf::sync_job { BLOCK }	330	=item cf::sync_job { BLOCK }
187		331
188	The design of crossfire+ requires that the main coro ($Coro::main) is	332	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	333	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	334	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		335	acceptable.
191		336
192	If it must be done, put the blocking parts into C<sync_job>. This will run	337	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	338	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	339	server will be frozen during this time, so the block should either finish
195	fast or be very important.	340	fast or be very important.
…		…
198		343
199	sub sync_job(&) {	344	sub sync_job(&) {
200	my ($job) = @_;	345	my ($job) = @_;
201		346
202	if ($Coro::current == $Coro::main) {	347	if ($Coro::current == $Coro::main) {
		348	my $time = Event::time;
		349
203	# this is the main coro, too bad, we have to block	350	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	351	# till the operation succeeds, freezing the server :/
205		352
206	# TODO: use suspend/resume instead	353	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	354	# (but this is cancel-safe)
208	local $FREEZE = 1;	355	my $freeze_guard = freeze_mainloop;
209		356
210	my $busy = 1;	357	my $busy = 1;
211	my @res;	358	my @res;
212		359
213	(Coro::async {	360	(async {
214	@res = eval { $job->() };	361	@res = eval { $job->() };
215	warn $@ if $@;	362	warn $@ if $@;
216	undef $busy;	363	undef $busy;
217	})->prio (Coro::PRIO_MAX);	364	})->prio (Coro::PRIO_MAX);
218		365
219	while ($busy) {	366	while ($busy) {
220	Coro::cede_notself;	367	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	368	}
		369
		370	$time = Event::time - $time;
		371
		372	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		373	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		374
		375	$tick_start += $time; # do not account sync jobs to server load
223		376
224	wantarray ? @res : $res[0]	377	wantarray ? @res : $res[0]
225	} else {	378	} else {
226	# we are in another coroutine, how wonderful, everything just works	379	# we are in another coroutine, how wonderful, everything just works
227		380
228	$job->()	381	$job->()
229	}	382	}
230	}	383	}
231		384
232	=item $coro = cf::coro { BLOCK }	385	=item $coro = cf::async_ext { BLOCK }
233		386
234	Creates and returns a new coro. This coro is automcatially being canceled	387	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	388	extension calling this is being unloaded.
236		389
237	=cut	390	=cut
238		391
239	sub coro(&) {	392	sub async_ext(&) {
240	my $cb = shift;	393	my $cb = shift;
241		394
242	my $coro; $coro = async {	395	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		396
249	$coro->on_destroy (sub {	397	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	398	delete $EXT_CORO{$coro+0};
251	});	399	});
252	$EXT_CORO{$coro+0} = $coro;	400	$EXT_CORO{$coro+0} = $coro;
253		401
254	$coro	402	$coro
255	}	403	}
256		404
257	sub write_runtime {	405	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		406
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	407	Executes the given code block with the given arguments in a seperate
261	or return;	408	process, returning the results. Everything must be serialisable with
		409	Coro::Storable. May, of course, block. Note that the executed sub may
		410	never block itself or use any form of Event handling.
262		411
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	412	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		413
267	aio_fsync $fh	414	sub _store_scalar {
268	and return;	415	open my $fh, ">", \my $buf
269		416	or die "fork_call: cannot open fh-to-buf in child : $!";
		417	Storable::store_fd $_[0], $fh;
270	close $fh	418	close $fh;
271	or return;
272		419
273	aio_rename "$runtime~", $runtime	420	$buf
274	and return;	421	}
275		422
		423	sub fork_call(&@) {
		424	my ($cb, @args) = @_;
		425
		426	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		427	# or die "socketpair: $!";
		428	pipe my $fh1, my $fh2
		429	or die "pipe: $!";
		430
		431	if (my $pid = fork) {
		432	close $fh2;
		433
		434	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		435	warn "pst<$res>" unless $res =~ /^pst/;
		436	$res = Coro::Storable::thaw $res;
		437
		438	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		439
		440	Carp::confess $$res unless "ARRAY" eq ref $res;
		441
		442	return wantarray ? @$res : $res->[-1];
		443	} else {
		444	reset_signals;
		445	local $SIG{__WARN__};
		446	local $SIG{__DIE__};
		447	# just in case, this hack effectively disables event
		448	# in the child. cleaner and slower would be canceling all watchers,
		449	# but this works for the time being.
		450	local $Coro::idle;
		451	$Coro::current->prio (Coro::PRIO_MAX);
		452
		453	eval {
		454	close $fh1;
		455
		456	my @res = eval { $cb->(@args) };
		457
		458	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		459	close $fh2;
		460	};
		461
		462	warn $@ if $@;
		463	_exit 0;
276	1	464	}
		465	}
		466
		467	=item $value = cf::db_get $family => $key
		468
		469	Returns a single value from the environment database.
		470
		471	=item cf::db_put $family => $key => $value
		472
		473	Stores the given C<$value> in the family. It can currently store binary
		474	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		475
		476	=cut
		477
		478	our $DB;
		479
		480	sub db_init {
		481	unless ($DB) {
		482	$DB = BDB::db_create $DB_ENV;
		483
		484	cf::sync_job {
		485	eval {
		486	$DB->set_flags (BDB::CHKSUM);
		487
		488	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		489	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		490	cf::cleanup "db_open(db): $!" if $!;
		491	};
		492	cf::cleanup "db_open(db): $@" if $@;
		493	};
		494	}
		495	}
		496
		497	sub db_get($$) {
		498	my $key = "$_[0]/$_[1]";
		499
		500	cf::sync_job {
		501	BDB::db_get $DB, undef, $key, my $data;
		502
		503	$! ? ()
		504	: $data
		505	}
		506	}
		507
		508	sub db_put($$$) {
		509	BDB::dbreq_pri 4;
		510	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		511	}
		512
		513	=item cf::cache $id => [$paths...], $processversion => $process
		514
		515	Generic caching function that returns the value of the resource $id,
		516	caching and regenerating as required.
		517
		518	This function can block.
		519
		520	=cut
		521
		522	sub cache {
		523	my ($id, $src, $processversion, $process) = @_;
		524
		525	my $meta =
		526	join "\x00",
		527	$processversion,
		528	map {
		529	aio_stat $_
		530	and Carp::croak "$_: $!";
		531
		532	($_, (stat _)[7,9])
		533	} @$src;
		534
		535	my $dbmeta = db_get cache => "$id/meta";
		536	if ($dbmeta ne $meta) {
		537	# changed, we may need to process
		538
		539	my @data;
		540	my $md5;
		541
		542	for (0 .. $#$src) {
		543	0 <= aio_load $src->[$_], $data[$_]
		544	or Carp::croak "$src->[$_]: $!";
		545	}
		546
		547	# if processing is expensive, check
		548	# checksum first
		549	if (1) {
		550	$md5 =
		551	join "\x00",
		552	$processversion,
		553	map {
		554	Coro::cede;
		555	($src->[$_], Digest::MD5::md5_hex $data[$_])
		556	} 0.. $#$src;
		557
		558
		559	my $dbmd5 = db_get cache => "$id/md5";
		560	if ($dbmd5 eq $md5) {
		561	db_put cache => "$id/meta", $meta;
		562
		563	return db_get cache => "$id/data";
		564	}
		565	}
		566
		567	my $t1 = Time::HiRes::time;
		568	my $data = $process->(\@data);
		569	my $t2 = Time::HiRes::time;
		570
		571	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		572
		573	db_put cache => "$id/data", $data;
		574	db_put cache => "$id/md5" , $md5;
		575	db_put cache => "$id/meta", $meta;
		576
		577	return $data;
		578	}
		579
		580	db_get cache => "$id/data"
		581	}
		582
		583	=item cf::datalog type => key => value, ...
		584
		585	Log a datalog packet of the given type with the given key-value pairs.
		586
		587	=cut
		588
		589	sub datalog($@) {
		590	my ($type, %kv) = @_;
		591	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	592	}
278		593
279	=back	594	=back
280		595
281	=cut	596	=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		597
403	#############################################################################	598	#############################################################################
404		599
405	=head2 ATTACHABLE OBJECTS	600	=head2 ATTACHABLE OBJECTS
406		601
…		…
408	attach callbacks/event handlers (a collection of which is called an "attachment")	603	attach callbacks/event handlers (a collection of which is called an "attachment")
409	to it. All such attachable objects support the following methods.	604	to it. All such attachable objects support the following methods.
410		605
411	In the following description, CLASS can be any of C<global>, C<object>	606	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	607	C<player>, C<client> or C<map> (i.e. the attachable objects in
413	crossfire+).	608	Crossfire TRT).
414		609
415	=over 4	610	=over 4
416		611
417	=item $attachable->attach ($attachment, key => $value...)	612	=item $attachable->attach ($attachment, key => $value...)
418		613
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	727	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	728	our @CB_MAP = ();
534		729
535	my %attachment;	730	my %attachment;
536		731
		732	sub cf::attachable::thawer_merge {
		733	# simply override everything except _meta
		734	local $_[0]{_meta};
		735	%{$_[0]} = %{$_[1]};
		736	}
		737
537	sub _attach_cb($$$$) {	738	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	739	my ($registry, $event, $prio, $cb) = @_;
539		740
540	use sort 'stable';	741	use sort 'stable';
541		742
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	776	$registry = $CB_TYPE[$object_type] ||= [];
576		777
577	} elsif ($type eq "subtype") {	778	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	779	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	780	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	781	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		782
582	} elsif ($type eq "package") {	783	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	784	my $pkg = shift @arg;
584		785
585	while (my ($name, $id) = each %cb_id) {	786	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	815	_attach $registry, $klass, @attach;
615	}	816	}
616		817
617	$obj->{$name} = \%arg;	818	$obj->{$name} = \%arg;
618	} else {	819	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	820	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	821	}
621		822
622	$obj->{_attachment}{$name} = undef;	823	$obj->{_attachment}{$name} = undef;
623	}	824	}
624		825
…		…
626	if (ref $_[0]) {	827	if (ref $_[0]) {
627	_object_attach @_;	828	_object_attach @_;
628	} else {	829	} else {
629	_attach shift->_attach_registry, @_;	830	_attach shift->_attach_registry, @_;
630	}	831	}
		832	_recalc_want;
631	};	833	};
632		834
633	# all those should be optimised	835	# all those should be optimised
634	sub cf::attachable::detach {	836	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	837	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	840	delete $obj->{_attachment}{$name};
639	reattach ($obj);	841	reattach ($obj);
640	} else {	842	} else {
641	Carp::croak "cannot, currently, detach class attachments";	843	Carp::croak "cannot, currently, detach class attachments";
642	}	844	}
		845	_recalc_want;
643	};	846	};
644		847
645	sub cf::attachable::attached {	848	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	849	my ($obj, $name) = @_;
647		850
…		…
712	# object support	915	# object support
713		916
714	sub reattach {	917	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	918	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	919	my ($obj) = @_;
		920
		921	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		922
718	my $registry = $obj->registry;	923	my $registry = $obj->registry;
719		924
720	@$registry = ();	925	@$registry = ();
721		926
…		…
768	$filename, length $$rdata, scalar @$objs;	973	$filename, length $$rdata, scalar @$objs;
769		974
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	975	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	976	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	977	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	978	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	979	close $fh;
775		980
776	if (@$objs) {	981	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	982	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	984	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	985	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	986	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	987	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	988	aio_rename "$filename.pst~", "$filename.pst";
784	}	989	}
785	} else {	990	} else {
786	aio_unlink "$filename.pst";	991	aio_unlink "$filename.pst";
…		…
818	or return;	1023	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1024	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1025	}
821		1026
822	warn sprintf "loading %s (%d)\n",	1027	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1028	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1029	return ($data, $av);
825	}	1030	}
		1031
		1032	=head2 COMMAND CALLBACKS
		1033
		1034	=over 4
		1035
		1036	=cut
826		1037
827	#############################################################################	1038	#############################################################################
828	# command handling &c	1039	# command handling &c
829		1040
830	=item cf::register_command $name => \&callback($ob,$args);	1041	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1054	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1055	}
845		1056
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1057	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1058
848	Register a callbackf ro execution when the client sends an extcmd packet.	1059	Register a callback for execution when the client sends an (synchronous)
		1060	extcmd packet. Ext commands will be processed in the order they are
		1061	received by the server, like other user commands. The first argument is
		1062	the logged-in player. Ext commands can only be processed after a player
		1063	has logged in successfully.
849		1064
850	If the callback returns something, it is sent back as if reply was being	1065	If the callback returns something, it is sent back as if reply was being
851	called.	1066	called.
852		1067
		1068	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1069
		1070	Register a callback for execution when the client sends an (asynchronous)
		1071	exticmd packet. Exti commands are processed by the server as soon as they
		1072	are received, i.e. out of order w.r.t. other commands. The first argument
		1073	is a client socket. Exti commands can be received anytime, even before
		1074	log-in.
		1075
		1076	If the callback returns something, it is sent back as if reply was being
		1077	called.
		1078
853	=cut	1079	=cut
854		1080
855	sub register_extcmd {	1081	sub register_extcmd {
856	my ($name, $cb) = @_;	1082	my ($name, $cb) = @_;
857		1083
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	1084	$EXTCMD{$name} = $cb;
		1085	}
		1086
		1087	sub register_exticmd {
		1088	my ($name, $cb) = @_;
		1089
		1090	$EXTICMD{$name} = $cb;
862	}	1091	}
863		1092
864	cf::player->attach (	1093	cf::player->attach (
865	on_command => sub {	1094	on_command => sub {
866	my ($pl, $name, $params) = @_;	1095	my ($pl, $name, $params) = @_;
…		…
875	cf::override;	1104	cf::override;
876	},	1105	},
877	on_extcmd => sub {	1106	on_extcmd => sub {
878	my ($pl, $buf) = @_;	1107	my ($pl, $buf) = @_;
879		1108
880	my $msg = eval { from_json $buf };	1109	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
881		1110
882	if (ref $msg) {	1111	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1112	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	1113	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	1114	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	1115	}
887	}	1116	}
888	} else {	1117	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1118	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		1120
892	cf::override;	1121	cf::override;
893	},	1122	},
894	);	1123	);
895		1124
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	1125	sub load_extensions {
		1126	cf::sync_job {
		1127	my %todo;
		1128
		1129	for my $path (<$LIBDIR/*.ext>) {
		1130	next unless -r $path;
		1131
		1132	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1133	my $base = $1;
		1134	my $pkg = $1;
		1135	$pkg =~ s/[^[:word:]]/_/g;
		1136	$pkg = "ext::$pkg";
		1137
		1138	open my $fh, "<:utf8", $path
		1139	or die "$path: $!";
		1140
		1141	my $source = do { local $/; <$fh> };
		1142
		1143	my %ext = (
		1144	path => $path,
		1145	base => $base,
		1146	pkg => $pkg,
		1147	);
		1148
		1149	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1150	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1151
		1152	$ext{source} =
		1153	"package $pkg; use strict; use utf8;\n"
		1154	. "#line 1 \"$path\"\n{\n"
		1155	. $source
		1156	. "\n};\n1";
		1157
		1158	$todo{$base} = \%ext;
		1159	}
		1160
		1161	my %done;
		1162	while (%todo) {
		1163	my $progress;
		1164
		1165	while (my ($k, $v) = each %todo) {
		1166	for (split /,\s*/, $v->{meta}{depends}) {
		1167	goto skip
		1168	unless exists $done{$_};
		1169	}
		1170
		1171	warn "... loading '$k' into '$v->{pkg}'\n";
		1172
		1173	unless (eval $v->{source}) {
		1174	my $msg = $@ ? "$v->{path}: $@\n"
		1175	: "$v->{base}: extension inactive.\n";
		1176
		1177	if (exists $v->{meta}{mandatory}) {
		1178	warn $msg;
		1179	warn "mandatory extension failed to load, exiting.\n";
		1180	exit 1;
		1181	}
		1182
		1183	warn $msg;
		1184	}
		1185
		1186	$done{$k} = delete $todo{$k};
		1187	push @EXTS, $v->{pkg};
		1188	$progress = 1;
		1189	}
		1190
		1191	skip:
		1192	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1193	unless $progress;
		1194	}
		1195	};
		1196	}
		1197
		1198	#############################################################################
		1199
		1200	=back
		1201
		1202	=head2 CORE EXTENSIONS
		1203
		1204	Functions and methods that extend core crossfire objects.
		1205
		1206	=cut
		1207
		1208	package cf::player;
		1209
		1210	use Coro::AIO;
		1211
		1212	=head3 cf::player
		1213
		1214	=over 4
		1215
		1216	=item cf::player::find $login
		1217
		1218	Returns the given player object, loading it if necessary (might block).
		1219
		1220	=cut
		1221
		1222	sub playerdir($) {
		1223	"$PLAYERDIR/"
		1224	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1225	}
		1226
		1227	sub path($) {
		1228	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1229
		1230	(playerdir $login) . "/playerdata"
		1231	}
		1232
		1233	sub find_active($) {
		1234	$cf::PLAYER{$_[0]}
		1235	and $cf::PLAYER{$_[0]}->active
		1236	and $cf::PLAYER{$_[0]}
		1237	}
		1238
		1239	sub exists($) {
		1240	my ($login) = @_;
		1241
		1242	$cf::PLAYER{$login}
		1243	or cf::sync_job { !aio_stat path $login }
		1244	}
		1245
		1246	sub find($) {
		1247	return $cf::PLAYER{$_[0]} || do {
		1248	my $login = $_[0];
		1249
		1250	my $guard = cf::lock_acquire "user_find:$login";
		1251
		1252	$cf::PLAYER{$_[0]} || do {
		1253	# rename old playerfiles to new ones
		1254	#TODO: remove when no longer required
		1255	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1256	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1257	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1258	aio_unlink +(playerdir $login) . "/$login.pl";
		1259
		1260	my $pl = load_pl path $login
		1261	or return;
		1262	$cf::PLAYER{$login} = $pl
		1263	}
		1264	}
		1265	}
		1266
		1267	sub save($) {
		1268	my ($pl) = @_;
		1269
		1270	return if $pl->{deny_save};
		1271
		1272	my $path = path $pl;
		1273	my $guard = cf::lock_acquire "user_save:$path";
		1274
		1275	return if $pl->{deny_save};
		1276
		1277	aio_mkdir playerdir $pl, 0770;
		1278	$pl->{last_save} = $cf::RUNTIME;
		1279
		1280	$pl->save_pl ($path);
		1281	Coro::cede;
		1282	}
		1283
		1284	sub new($) {
		1285	my ($login) = @_;
		1286
		1287	my $self = create;
		1288
		1289	$self->ob->name ($login);
		1290	$self->{deny_save} = 1;
		1291
		1292	$cf::PLAYER{$login} = $self;
		1293
		1294	$self
		1295	}
		1296
		1297	=item $pl->quit_character
		1298
		1299	Nukes the player without looking back. If logged in, the connection will
		1300	be destroyed. May block for a long time.
		1301
		1302	=cut
		1303
		1304	sub quit_character {
		1305	my ($pl) = @_;
		1306
		1307	my $name = $pl->ob->name;
		1308
		1309	$pl->{deny_save} = 1;
		1310	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1311
		1312	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1313	$pl->deactivate;
		1314	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1315	$pl->ns->destroy if $pl->ns;
		1316
		1317	my $path = playerdir $pl;
		1318	my $temp = "$path~$cf::RUNTIME~deleting~";
		1319	aio_rename $path, $temp;
		1320	delete $cf::PLAYER{$pl->ob->name};
		1321	$pl->destroy;
		1322
		1323	my $prefix = qr<^~\Q$name\E/>;
		1324
		1325	# nuke player maps
		1326	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1327
		1328	IO::AIO::aio_rmtree $temp;
		1329	}
		1330
		1331	=item $pl->kick
		1332
		1333	Kicks a player out of the game. This destroys the connection.
		1334
		1335	=cut
		1336
		1337	sub kick {
		1338	my ($pl, $kicker) = @_;
		1339
		1340	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1341	$pl->killer ("kicked");
		1342	$pl->ns->destroy;
		1343	}
		1344
		1345	=item cf::player::list_logins
		1346
		1347	Returns am arrayref of all valid playernames in the system, can take a
		1348	while and may block, so not sync_job-capable, ever.
		1349
		1350	=cut
		1351
		1352	sub list_logins {
		1353	my $dirs = aio_readdir $PLAYERDIR
		1354	or return [];
		1355
		1356	my @logins;
		1357
		1358	for my $login (@$dirs) {
		1359	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1360	aio_read $fh, 0, 512, my $buf, 0 or next;
		1361	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1362
		1363	utf8::decode $login;
		1364	push @logins, $login;
		1365	}
		1366
		1367	\@logins
		1368	}
		1369
		1370	=item $player->maps
		1371
		1372	Returns an arrayref of map paths that are private for this
		1373	player. May block.
		1374
		1375	=cut
		1376
		1377	sub maps($) {
		1378	my ($pl) = @_;
		1379
		1380	$pl = ref $pl ? $pl->ob->name : $pl;
		1381
		1382	my $files = aio_readdir playerdir $pl
		1383	or return;
		1384
		1385	my @paths;
		1386
		1387	for (@$files) {
		1388	utf8::decode $_;
		1389	next if /\.(?:pl|pst)$/;
		1390	next unless /^$PATH_SEP/o;
		1391
		1392	push @paths, cf::map::normalise "~$pl/$_";
		1393	}
		1394
		1395	\@paths
		1396	}
		1397
		1398	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1399
		1400	Expand crossfire pod fragments into protocol xml.
		1401
		1402	=cut
		1403
		1404	sub expand_cfpod {
		1405	((my $self), (local $_)) = @_;
		1406
		1407	# escape & and <
		1408	s/&/&amp;/g;
		1409	s/(?<![BIUGH])</&lt;/g;
		1410
		1411	# this is buggy, it needs to properly take care of nested <'s
		1412
		1413	1 while
		1414	# replace B<>, I<>, U<> etc.
		1415	s/B<([^\>]*)>/<b>$1<\/b>/
		1416	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1417	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1418	# replace G<male|female> tags
		1419	|| s{G<([^>|]*)\|([^>]*)>}{
		1420	$self->gender ? $2 : $1
		1421	}ge
		1422	# replace H<hint text>
		1423	|| s{H<([^\>]*)>}
		1424	{
		1425	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1426	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1427	"")
		1428	[$self->{hintmode}]
		1429	}ge;
		1430
		1431	# create single paragraphs (very hackish)
		1432	s/(?<=\S)\n(?=\w)/ /g;
		1433
		1434	# compress some whitespace
		1435	s/\s+\n/\n/g; # ws line-ends
		1436	s/\n\n+/\n/g; # double lines
		1437	s/^\n+//; # beginning lines
		1438	s/\n+$//; # ending lines
		1439
		1440	warn $_;#d#
		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	$msg{msgtype} = "event_$type";
		2471	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2472	}
1573		2473
1574	=item $success = $client->query ($flags, "text", \&cb)	2474	=item $success = $client->query ($flags, "text", \&cb)
1575		2475
1576	Queues a query to the client, calling the given callback with	2476	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>,	2477	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>.	2478	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1579		2479
1580	Queries can fail, so check the return code. Or don't, as queries will become	2480	Queries can fail, so check the return code. Or don't, as queries will
1581	reliable at some point in the future.	2481	become reliable at some point in the future.
1582		2482
1583	=cut	2483	=cut
1584		2484
1585	sub cf::client::query {	2485	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	2486	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	2494	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2495	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		2496
1597	$self->send_packet ($self->{query_queue}[0][0])	2497	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	2498	if @{ $self->{query_queue} } == 1;
		2499
		2500	1
1599	}	2501	}
1600		2502
1601	cf::client->attach (	2503	cf::client->attach (
		2504	on_connect => sub {
		2505	my ($ns) = @_;
		2506
		2507	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2508	},
1602	on_reply => sub {	2509	on_reply => sub {
1603	my ($ns, $msg) = @_;	2510	my ($ns, $msg) = @_;
1604		2511
1605	# this weird shuffling is so that direct followup queries	2512	# this weird shuffling is so that direct followup queries
1606	# get handled first	2513	# get handled first
1607	my $queue = delete $ns->{query_queue};	2514	my $queue = delete $ns->{query_queue}
		2515	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2516
1609	(shift @$queue)->[1]->($msg);	2517	(shift @$queue)->[1]->($msg);
		2518	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2519
1611	push @{ $ns->{query_queue} }, @$queue;	2520	push @{ $ns->{query_queue} }, @$queue;
1612		2521
1613	if (@{ $ns->{query_queue} } == @$queue) {	2522	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2523	if (@$queue) {
…		…
1616	} else {	2525	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2526	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	2527	}
1619	}	2528	}
1620	},	2529	},
		2530	on_exticmd => sub {
		2531	my ($ns, $buf) = @_;
		2532
		2533	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2534
		2535	if (ref $msg) {
		2536	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2537	if (my %reply = $cb->($ns, $msg)) {
		2538	$reply{msgid} = $msg->{msgid};
		2539	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2540	}
		2541	}
		2542	} else {
		2543	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2544	}
		2545
		2546	cf::override;
		2547	},
1621	);	2548	);
1622		2549
1623	=item $client->coro (\&cb)	2550	=item $client->async (\&cb)
1624		2551
1625	Create a new coroutine, running the specified callback. The coroutine will	2552	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2553	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2554	or loss of connection).
1628		2555
1629	=cut	2556	=cut
1630		2557
1631	sub cf::client::coro {	2558	sub cf::client::async {
1632	my ($self, $cb) = @_;	2559	my ($self, $cb) = @_;
1633		2560
1634	my $coro; $coro = async {	2561	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2562
1641	$coro->on_destroy (sub {	2563	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2564	delete $self->{_coro}{$coro+0};
1643	});	2565	});
1644		2566
…		…
1677		2599
1678	# here we export the classes and methods available to script code	2600	# here we export the classes and methods available to script code
1679		2601
1680	=pod	2602	=pod
1681		2603
1682	The following fucntions and emthods are available within a safe environment:	2604	The following functions and methods are available within a safe environment:
1683		2605
1684	cf::object contr pay_amount pay_player map	2606	cf::object
		2607	contr pay_amount pay_player map x y force_find force_add
		2608	insert remove
		2609
1685	cf::object::player player	2610	cf::object::player
1686	cf::player peaceful	2611	player
1687	cf::map trigger	2612
		2613	cf::player
		2614	peaceful
		2615
		2616	cf::map
		2617	trigger
1688		2618
1689	=cut	2619	=cut
1690		2620
1691	for (	2621	for (
1692	["cf::object" => qw(contr pay_amount pay_player map)],	2622	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2623	insert remove)],
1693	["cf::object::player" => qw(player)],	2624	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	2625	["cf::player" => qw(peaceful)],
1695	["cf::map" => qw(trigger)],	2626	["cf::map" => qw(trigger)],
1696	) {	2627	) {
1697	no strict 'refs';	2628	no strict 'refs';
…		…
1768	=back	2699	=back
1769		2700
1770	=cut	2701	=cut
1771		2702
1772	#############################################################################	2703	#############################################################################
		2704	# the server's init and main functions
1773		2705
1774	=head2 EXTENSION DATABASE SUPPORT	2706	sub load_facedata($) {
		2707	my ($path) = @_;
1775		2708
1776	Crossfire maintains a very simple database for extension use. It can	2709	warn "loading facedata from $path\n";
1777	currently store anything that can be serialised using Storable, which
1778	excludes objects.
1779		2710
1780	The parameter C<$family> should best start with the name of the extension	2711	my $facedata;
1781	using it, it should be unique.	2712	0 < aio_load $path, $facedata
		2713	or die "$path: $!";
1782		2714
1783	=over 4	2715	$facedata = Coro::Storable::thaw $facedata;
1784		2716
1785	=item $hashref = cf::db_get $family	2717	$facedata->{version} == 2
		2718	or cf::cleanup "$path: version mismatch, cannot proceed.";
1786		2719
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	}	2720	{
		2721	my $faces = $facedata->{faceinfo};
1824		2722
1825	my $pid;	2723	while (my ($face, $info) = each %$faces) {
1826		2724	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1827	sub db_save() {	2725	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1828	warn "saving database $path\n";#d# remove later	2726	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1829	waitpid $pid, 0 if $pid;	2727	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1830	if (0 == ($pid = fork)) {	2728	Coro::cede;
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]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868
1869	cf::global->attach (
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	2729	}
1874	);
1875	}
1876		2730
1877	#############################################################################	2731	while (my ($face, $info) = each %$faces) {
1878	# the server's main()	2732	next unless $info->{smooth};
		2733	my $idx = cf::face::find $face
		2734	or next;
		2735	if (my $smooth = cf::face::find $info->{smooth}) {
		2736	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2737	} else {
		2738	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2739	}
		2740	Coro::cede;
		2741	}
		2742	}
		2743
		2744	{
		2745	my $anims = $facedata->{animinfo};
		2746
		2747	while (my ($anim, $info) = each %$anims) {
		2748	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2749	Coro::cede;
		2750	}
		2751
		2752	cf::anim::invalidate_all; # d'oh
		2753	}
		2754
		2755	1
		2756	}
		2757
		2758	sub reload_regions {
		2759	load_resource_file "$MAPDIR/regions"
		2760	or die "unable to load regions file\n";
		2761	}
		2762
		2763	sub reload_facedata {
		2764	load_facedata "$DATADIR/facedata"
		2765	or die "unable to load facedata\n";
		2766	}
		2767
		2768	sub reload_archetypes {
		2769	load_resource_file "$DATADIR/archetypes"
		2770	or die "unable to load archetypes\n";
		2771	#d# NEED to laod twice to resolve forward references
		2772	# this really needs to be done in an extra post-pass
		2773	# (which needs to be synchronous, so solve it differently)
		2774	load_resource_file "$DATADIR/archetypes"
		2775	or die "unable to load archetypes\n";
		2776	}
		2777
		2778	sub reload_treasures {
		2779	load_resource_file "$DATADIR/treasures"
		2780	or die "unable to load treasurelists\n";
		2781	}
		2782
		2783	sub reload_resources {
		2784	warn "reloading resource files...\n";
		2785
		2786	reload_regions;
		2787	reload_facedata;
		2788	#reload_archetypes;#d#
		2789	reload_archetypes;
		2790	reload_treasures;
		2791
		2792	warn "finished reloading resource files\n";
		2793	}
		2794
		2795	sub init {
		2796	reload_resources;
		2797	}
1879		2798
1880	sub cfg_load {	2799	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2800	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2801	or return;
1883		2802
1884	local $/;	2803	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2804	*CFG = YAML::Syck::Load <$fh>;
		2805
		2806	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2807
		2808	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2809	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2810
		2811	if (exists $CFG{mlockall}) {
		2812	eval {
		2813	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2814	and die "WARNING: m(un)lockall failed: $!\n";
		2815	};
		2816	warn $@ if $@;
		2817	}
1886	}	2818	}
1887		2819
1888	sub main {	2820	sub main {
1889	# we must not ever block the main coroutine	2821	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2822	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2823	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2824	(async {
1893	Event::one_event;	2825	Event::one_event;
1894	})->();	2826	})->prio (Coro::PRIO_MAX);
1895	};	2827	};
1896		2828
1897	cfg_load;	2829	cfg_load;
1898	db_load;	2830	db_init;
1899	load_extensions;	2831	load_extensions;
		2832
		2833	$TICK_WATCHER->start;
1900	Event::loop;	2834	Event::loop;
1901	}	2835	}
1902		2836
1903	#############################################################################	2837	#############################################################################
1904	# initialisation	2838	# initialisation and cleanup
1905		2839
		2840	# install some emergency cleanup handlers
		2841	BEGIN {
		2842	for my $signal (qw(INT HUP TERM)) {
		2843	Event->signal (
		2844	reentrant => 0,
		2845	data => WF_AUTOCANCEL,
		2846	signal => $signal,
		2847	prio => 0,
		2848	cb => sub {
		2849	cf::cleanup "SIG$signal";
		2850	},
		2851	);
		2852	}
		2853	}
		2854
		2855	sub write_runtime {
		2856	my $runtime = "$LOCALDIR/runtime";
		2857
		2858	# first touch the runtime file to show we are still running:
		2859	# the fsync below can take a very very long time.
		2860
		2861	IO::AIO::aio_utime $runtime, undef, undef;
		2862
		2863	my $guard = cf::lock_acquire "write_runtime";
		2864
		2865	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2866	or return;
		2867
		2868	my $value = $cf::RUNTIME + 90 + 10;
		2869	# 10 is the runtime save interval, for a monotonic clock
		2870	# 60 allows for the watchdog to kill the server.
		2871
		2872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2873	and return;
		2874
		2875	# always fsync - this file is important
		2876	aio_fsync $fh
		2877	and return;
		2878
		2879	# touch it again to show we are up-to-date
		2880	aio_utime $fh, undef, undef;
		2881
		2882	close $fh
		2883	or return;
		2884
		2885	aio_rename "$runtime~", $runtime
		2886	and return;
		2887
		2888	warn "runtime file written.\n";
		2889
		2890	1
		2891	}
		2892
		2893	sub emergency_save() {
		2894	my $freeze_guard = cf::freeze_mainloop;
		2895
		2896	warn "enter emergency perl save\n";
		2897
		2898	cf::sync_job {
		2899	# use a peculiar iteration method to avoid tripping on perl
		2900	# refcount bugs in for. also avoids problems with players
		2901	# and maps saved/destroyed asynchronously.
		2902	warn "begin emergency player save\n";
		2903	for my $login (keys %cf::PLAYER) {
		2904	my $pl = $cf::PLAYER{$login} or next;
		2905	$pl->valid or next;
		2906	$pl->save;
		2907	}
		2908	warn "end emergency player save\n";
		2909
		2910	warn "begin emergency map save\n";
		2911	for my $path (keys %cf::MAP) {
		2912	my $map = $cf::MAP{$path} or next;
		2913	$map->valid or next;
		2914	$map->save;
		2915	}
		2916	warn "end emergency map save\n";
		2917
		2918	warn "begin emergency database checkpoint\n";
		2919	BDB::db_env_txn_checkpoint $DB_ENV;
		2920	warn "end emergency database checkpoint\n";
		2921	};
		2922
		2923	warn "leave emergency perl save\n";
		2924	}
		2925
		2926	sub post_cleanup {
		2927	my ($make_core) = @_;
		2928
		2929	warn Carp::longmess "post_cleanup backtrace"
		2930	if $make_core;
		2931	}
		2932
1906	sub reload() {	2933	sub do_reload_perl() {
1907	# can/must only be called in main	2934	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2935	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2936	warn "can only reload from main coroutine";
1910	return;	2937	return;
1911	}	2938	}
1912		2939
1913	warn "reloading...";	2940	warn "reloading...";
1914		2941
1915	local $FREEZE = 1;	2942	warn "entering sync_job";
		2943
		2944	cf::sync_job {
		2945	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	2946	cf::emergency_save;
		2947	cf::write_runtime; # external watchdog should not bark
1917		2948
1918	eval {	2949	warn "syncing database to disk";
		2950	BDB::db_env_txn_checkpoint $DB_ENV;
		2951
1919	# if anything goes wrong in here, we should simply crash as we already saved	2952	# if anything goes wrong in here, we should simply crash as we already saved
1920		2953
1921	# cancel all watchers	2954	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	2955	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	2956	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	2957	}
1925		2958
		2959	warn "flushing outstanding aio requests";
		2960	for (;;) {
		2961	BDB::flush;
		2962	IO::AIO::flush;
		2963	Coro::cede;
		2964	last unless IO::AIO::nreqs || BDB::nreqs;
		2965	warn "iterate...";
		2966	}
		2967
		2968	++$RELOAD;
		2969
1926	# cancel all extension coros	2970	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	2971	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	2972	%EXT_CORO = ();
1929		2973
1930	# unload all extensions	2974	warn "removing commands";
1931	for (@exts) {	2975	%COMMAND = ();
		2976
		2977	warn "removing ext/exti commands";
		2978	%EXTCMD = ();
		2979	%EXTICMD = ();
		2980
		2981	warn "unloading/nuking all extensions";
		2982	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	2983	warn "... unloading $pkg";
1933	unload_extension $_;	2984
		2985	if (my $cb = $pkg->can ("unload")) {
		2986	eval {
		2987	$cb->($pkg);
		2988	1
		2989	} or warn "$pkg unloaded, but with errors: $@";
1934	}	2990	}
1935		2991
		2992	warn "... nuking $pkg";
		2993	Symbol::delete_package $pkg;
		2994	}
		2995
1936	# unload all modules loaded from $LIBDIR	2996	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	2997	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2998	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		2999
1940	warn "removing <$k>";	3000	warn "... unloading $k";
1941	delete $INC{$k};	3001	delete $INC{$k};
1942		3002
1943	$k =~ s/\.pm$//;	3003	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	3004	$k =~ s/\//::/g;
1945		3005
…		…
1948	}	3008	}
1949		3009
1950	Symbol::delete_package $k;	3010	Symbol::delete_package $k;
1951	}	3011	}
1952		3012
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	3013	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	3014	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3015	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		3016
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	3017	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	3018	delete $INC{"cf.pm"};
		3019	delete $INC{"cf/pod.pm"};
1966		3020
1967	# don't, removes xs symbols, too,	3021	# don't, removes xs symbols, too,
1968	# and global variables created in xs	3022	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	3023	#Symbol::delete_package __PACKAGE__;
1970		3024
1971	# reload cf.pm	3025	warn "unload completed, starting to reload now";
		3026
1972	warn "reloading cf.pm";	3027	warn "reloading cf.pm";
1973	require cf;	3028	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3029	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		3030
1976	# load config and database again	3031	warn "loading config and database again";
1977	cf::cfg_load;	3032	cf::cfg_load;
1978	cf::db_load;
1979		3033
1980	# load extensions
1981	warn "load extensions";	3034	warn "loading extensions";
1982	cf::load_extensions;	3035	cf::load_extensions;
1983		3036
1984	# reattach attachments to objects	3037	warn "reattaching attachments to objects/players";
1985	warn "reattach";	3038	_global_reattach; # objects, sockets
1986	_global_reattach;	3039	warn "reattaching attachments to maps";
1987	};	3040	reattach $_ for values %MAP;
		3041	warn "reattaching attachments to players";
		3042	reattach $_ for values %PLAYER;
1988		3043
1989	if ($@) {	3044	warn "leaving sync_job";
		3045
		3046	1
		3047	} or do {
1990	warn $@;	3048	warn $@;
1991	warn "error while reloading, exiting.";	3049	warn "error while reloading, exiting.";
1992	exit 1;	3050	exit 1;
1993	}	3051	};
1994		3052
1995	warn "reloaded successfully";	3053	warn "reloaded";
1996	};	3054	};
1997		3055
1998	#############################################################################	3056	our $RELOAD_WATCHER; # used only during reload
1999		3057
2000	unless ($LINK_MAP) {	3058	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	3059	# doing reload synchronously and two reloads happen back-to-back,
		3060	# coro crashes during coro_state_free->destroy here.
2002		3061
2003	$LINK_MAP->width (41);	3062	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	3063	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,	3064	after => 0,
		3065	data => WF_AUTOCANCEL,
2013	cb => sub {	3066	cb => sub {
2014	$_[0]->w->cancel;	3067	do_reload_perl;
2015		3068	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	});	3069	},
2034		3070	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	3071	}
2040
2041	register "<global>", __PACKAGE__;
2042		3072
2043	register_command "reload" => sub {	3073	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	3074	my ($who, $arg) = @_;
2045		3075
2046	if ($who->flag (FLAG_WIZ)) {	3076	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	3077	$who->message ("reloading server.");
		3078	async { reload_perl };
2050	}	3079	}
2051	};	3080	};
2052		3081
2053	unshift @INC, $LIBDIR;	3082	unshift @INC, $LIBDIR;
2054		3083
		3084	my $bug_warning = 0;
		3085
		3086	our @WAIT_FOR_TICK;
		3087	our @WAIT_FOR_TICK_BEGIN;
		3088
		3089	sub wait_for_tick {
		3090	return unless $TICK_WATCHER->is_active;
		3091	return if $Coro::current == $Coro::main;
		3092
		3093	my $signal = new Coro::Signal;
		3094	push @WAIT_FOR_TICK, $signal;
		3095	$signal->wait;
		3096	}
		3097
		3098	sub wait_for_tick_begin {
		3099	return unless $TICK_WATCHER->is_active;
		3100	return if $Coro::current == $Coro::main;
		3101
		3102	my $signal = new Coro::Signal;
		3103	push @WAIT_FOR_TICK_BEGIN, $signal;
		3104	$signal->wait;
		3105	}
		3106
		3107	my $min = 1e6;#d#
		3108	my $avg = 10;
2055	$TICK_WATCHER = Event->timer (	3109	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	3110	reentrant => 0,
		3111	parked => 1,
2057	prio => 0,	3112	prio => 0,
2058	at => $NEXT_TICK || $TICK,	3113	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	3114	data => WF_AUTOCANCEL,
2060	cb => sub {	3115	cb => sub {
2061	unless ($FREEZE) {	3116	if ($Coro::current != $Coro::main) {
		3117	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3118	unless ++$bug_warning > 10;
		3119	return;
		3120	}
		3121
		3122	$NOW = $tick_start = Event::time;
		3123
2062	cf::server_tick; # one server iteration	3124	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;	3125
		3126	0 && sync_job {#d#
		3127	for(1..10) {
		3128	my $t = Event::time;
		3129	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3130	or die;
		3131
		3132	$map->width (50);
		3133	$map->height (50);
		3134	$map->alloc;
		3135	$map->_load_objects ("/tmp/x.map", 1);
		3136	my $t = Event::time - $t;
		3137
		3138	#next unless $t < 0.0013;#d#
		3139	if ($t < $min) {
		3140	$min = $t;
		3141	}
		3142	$avg = $avg * 0.99 + $t * 0.01;
		3143	}
		3144	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3145	exit 0;
		3146	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2064	}	3147	};
2065		3148
		3149	$RUNTIME += $TICK;
2066	$NEXT_TICK += $TICK;	3150	$NEXT_TICK += $TICK;
2067		3151
		3152	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3153	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3154	Coro::async_pool {
		3155	write_runtime
		3156	or warn "ERROR: unable to write runtime file: $!";
		3157	};
		3158	}
		3159
		3160	# my $AFTER = Event::time;
		3161	# warn $AFTER - $NOW;#d#
		3162
		3163	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3164	$sig->send;
		3165	}
		3166	while (my $sig = shift @WAIT_FOR_TICK) {
		3167	$sig->send;
		3168	}
		3169
		3170	$NOW = Event::time;
		3171
2068	# if we are delayed by four ticks or more, skip them all	3172	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3173	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		3174
2071	$TICK_WATCHER->at ($NEXT_TICK);	3175	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	3176	$TICK_WATCHER->start;
		3177
		3178	$LOAD = ($NOW - $tick_start) / $TICK;
		3179	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3180
		3181	_post_tick;
		3182
		3183
2073	},	3184	},
2074	);	3185	);
2075		3186
		3187	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	3188	BDB::max_poll_time $TICK * 0.1;
2077		3189	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	3190	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	3191	fd => BDB::poll_fileno,
2080	poll => 'r',	3192	poll => 'r',
2081	prio => 5,	3193	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	3194	data => WF_AUTOCANCEL,
2088	after => 0,	3195	cb => \&BDB::poll_cb,
2089	interval => 10,	3196	);
2090	cb => sub {	3197	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	3198
2092	write_runtime	3199	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	3200	my $status;
		3201	my $current = $Coro::current;
		3202	(
		3203	sub {
		3204	$status = $!;
		3205	$current->ready; undef $current;
		3206	},
		3207	sub {
		3208	Coro::schedule while defined $current;
		3209	$! = $status;
		3210	},
		3211	)
		3212	};
		3213
		3214	unless ($DB_ENV) {
		3215	$DB_ENV = BDB::db_env_create;
		3216
		3217	cf::sync_job {
		3218	eval {
		3219	BDB::db_env_open
		3220	$DB_ENV,
		3221	$BDBDIR,
		3222	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3223	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3224	0666;
		3225
		3226	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3227
		3228	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3229	$DB_ENV->set_lk_detect;
		3230	};
		3231
		3232	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	3233	};
2095	},	3234	}
2096	);	3235	}
		3236
		3237	{
		3238	IO::AIO::min_parallel 8;
		3239
		3240	undef $Coro::AIO::WATCHER;
		3241	IO::AIO::max_poll_time $TICK * 0.1;
		3242	$AIO_POLL_WATCHER = Event->io (
		3243	reentrant => 0,
		3244	data => WF_AUTOCANCEL,
		3245	fd => IO::AIO::poll_fileno,
		3246	poll => 'r',
		3247	prio => 6,
		3248	cb => \&IO::AIO::poll_cb,
		3249	);
		3250	}
		3251
		3252	my $_log_backtrace;
		3253
		3254	sub _log_backtrace {
		3255	my ($msg, @addr) = @_;
		3256
		3257	$msg =~ s/\n//;
		3258
		3259	# limit the # of concurrent backtraces
		3260	if ($_log_backtrace < 2) {
		3261	++$_log_backtrace;
		3262	async {
		3263	my @bt = fork_call {
		3264	@addr = map { sprintf "%x", $_ } @addr;
		3265	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3266	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3267	or die "addr2line: $!";
		3268
		3269	my @funcs;
		3270	my @res = <$fh>;
		3271	chomp for @res;
		3272	while (@res) {
		3273	my ($func, $line) = splice @res, 0, 2, ();
		3274	push @funcs, "[$func] $line";
		3275	}
		3276
		3277	@funcs
		3278	};
		3279
		3280	LOG llevInfo, "[ABT] $msg\n";
		3281	LOG llevInfo, "[ABT] $_\n" for @bt;
		3282	--$_log_backtrace;
		3283	};
		3284	} else {
		3285	LOG llevInfo, "[ABT] $msg\n";
		3286	LOG llevInfo, "[ABT] [suppressed]\n";
		3287	}
		3288	}
		3289
		3290	# load additional modules
		3291	use cf::pod;
		3292
		3293	END { cf::emergency_save }
2097		3294
2098	1	3295	1
2099		3296

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