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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.301 by root, Tue Jul 10 07:01:51 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	$_
		1441	}
		1442
		1443	sub hintmode {
		1444	$_[0]{hintmode} = $_[1] if @_ > 1;
		1445	$_[0]{hintmode}
		1446	}
		1447
		1448	=item $player->ext_reply ($msgid, %msg)
		1449
		1450	Sends an ext reply to the player.
		1451
		1452	=cut
		1453
		1454	sub ext_reply($$%) {
		1455	my ($self, $id, %msg) = @_;
		1456
		1457	$msg{msgid} = $id;
		1458	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1459	}
		1460
		1461	=item $player->ext_event ($type, %msg)
		1462
		1463	Sends an ext event to the client.
		1464
		1465	=cut
		1466
		1467	sub ext_event($$%) {
		1468	my ($self, $type, %msg) = @_;
		1469
		1470	$self->ns->ext_event ($type, %msg);
		1471	}
		1472
		1473	=head3 cf::region
		1474
		1475	=over 4
		1476
		1477	=cut
		1478
		1479	package cf::region;
		1480
		1481	=item cf::region::find_by_path $path
		1482
		1483	Tries to decuce the likely region for a map knowing only its path.
		1484
		1485	=cut
		1486
		1487	sub find_by_path($) {
903	my ($path) = @_;	1488	my ($path) = @_;
904		1489
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1490	my ($match, $specificity);
906	my $base = $1;
907	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";
910		1491
911	warn "loading '$path' into '$pkg'\n";	1492	for my $region (list) {
912		1493	if ($region->match && $path =~ $region->match) {
913	open my $fh, "<:utf8", $path	1494	($match, $specificity) = ($region, $region->specificity)
914	or die "$path: $!";	1495	if $region->specificity > $specificity;
915		1496	}
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	# }	1497	}
945		1498
946	# remove commands	1499	$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	}	1500	}
1052		1501
1053	=back	1502	=back
1054
1055		1503
1056	=head3 cf::map	1504	=head3 cf::map
1057		1505
1058	=over 4	1506	=over 4
1059		1507
…		…
1062	package cf::map;	1510	package cf::map;
1063		1511
1064	use Fcntl;	1512	use Fcntl;
1065	use Coro::AIO;	1513	use Coro::AIO;
1066		1514
		1515	use overload
		1516	'""' => \&as_string,
		1517	fallback => 1;
		1518
1067	our $MAX_RESET = 7200;	1519	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1520	our $DEFAULT_RESET = 3000;
1069		1521
1070	sub generate_random_map {	1522	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1523	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1524	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1525	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1526	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1527	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1528	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1529	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1530	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1531	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1532	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1533	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1534	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1535	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1536	(cf::region::find $rmp->{region}), $rmp->{custom}
		1537	)
		1538	}
		1539
		1540	=item cf::map->register ($regex, $prio)
		1541
		1542	Register a handler for the map path matching the given regex at the
		1543	givne priority (higher is better, built-in handlers have priority 0, the
		1544	default).
		1545
		1546	=cut
		1547
		1548	sub register {
		1549	my (undef, $regex, $prio) = @_;
		1550	my $pkg = caller;
		1551
		1552	no strict;
		1553	push @{"$pkg\::ISA"}, __PACKAGE__;
		1554
		1555	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1556	}
		1557
		1558	# also paths starting with '/'
		1559	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1560
		1561	sub thawer_merge {
		1562	my ($self, $merge) = @_;
		1563
		1564	# we have to keep some variables in memory intact
		1565	local $self->{path};
		1566	local $self->{load_path};
		1567
		1568	$self->SUPER::thawer_merge ($merge);
		1569	}
		1570
		1571	sub normalise {
		1572	my ($path, $base) = @_;
		1573
		1574	$path = "$path"; # make sure its a string
		1575
		1576	$path =~ s/\.map$//;
		1577
		1578	# map plan:
		1579	#
		1580	# /! non-realised random map exit (special hack!)
		1581	# {... are special paths that are not being touched
		1582	# ?xxx/... are special absolute paths
		1583	# ?random/... random maps
		1584	# /... normal maps
		1585	# ~user/... per-player map of a specific user
		1586
		1587	$path =~ s/$PATH_SEP/\//go;
		1588
		1589	# treat it as relative path if it starts with
		1590	# something that looks reasonable
		1591	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1592	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1593
		1594	$base =~ s{[^/]+/?$}{};
		1595	$path = "$base/$path";
		1596	}
		1597
		1598	for ($path) {
		1599	redo if s{//}{/};
		1600	redo if s{/\.?/}{/};
		1601	redo if s{/[^/]+/\.\./}{/};
		1602	}
		1603
		1604	$path
		1605	}
		1606
		1607	sub new_from_path {
		1608	my (undef, $path, $base) = @_;
		1609
		1610	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1611
		1612	$path = normalise $path, $base;
		1613
		1614	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1615	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1616	my $self = bless cf::map::new, $pkg;
		1617	$self->{path} = $path; $self->path ($path);
		1618	$self->init; # pass $1 etc.
		1619	return $self;
		1620	}
		1621	}
		1622
		1623	Carp::carp "unable to resolve path '$path' (base '$base').";
		1624	()
		1625	}
		1626
		1627	sub init {
		1628	my ($self) = @_;
		1629
		1630	$self
		1631	}
		1632
		1633	sub as_string {
		1634	my ($self) = @_;
		1635
		1636	"$self->{path}"
		1637	}
		1638
		1639	# the displayed name, this is a one way mapping
		1640	sub visible_name {
		1641	&as_string
		1642	}
		1643
		1644	# the original (read-only) location
		1645	sub load_path {
		1646	my ($self) = @_;
		1647
		1648	"$MAPDIR/$self->{path}.map"
		1649	}
		1650
		1651	# the temporary/swap location
		1652	sub save_path {
		1653	my ($self) = @_;
		1654
		1655	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1656	"$TMPDIR/$path.map"
		1657	}
		1658
		1659	# the unique path, undef == no special unique path
		1660	sub uniq_path {
		1661	my ($self) = @_;
		1662
		1663	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1664	"$UNIQUEDIR/$path"
1087	}	1665	}
1088		1666
1089	# and all this just because we cannot iterate over	1667	# and all this just because we cannot iterate over
1090	# all maps in C++...	1668	# all maps in C++...
1091	sub change_all_map_light {	1669	sub change_all_map_light {
1092	my ($change) = @_;	1670	my ($change) = @_;
1093		1671
1094	$_->change_map_light ($change) for values %cf::MAP;	1672	$_->change_map_light ($change)
		1673	for grep $_->outdoor, values %cf::MAP;
1095	}	1674	}
1096		1675
		1676	sub decay_objects {
		1677	my ($self) = @_;
		1678
		1679	return if $self->{deny_reset};
		1680
		1681	$self->do_decay_objects;
		1682	}
		1683
		1684	sub unlink_save {
		1685	my ($self) = @_;
		1686
		1687	utf8::encode (my $save = $self->save_path);
		1688	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1690	}
		1691
1097	sub try_load_header($) {	1692	sub load_header_from($) {
1098	my ($path) = @_;	1693	my ($self, $path) = @_;
1099		1694
1100	utf8::encode $path;	1695	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1696	#aio_open $path, O_RDONLY, 0
		1697	# or return;
		1698
		1699	$self->_load_header ($path)
1102	or return;	1700	or return;
1103		1701
1104	my $map = cf::map::new	1702	$self->{load_path} = $path;
		1703
		1704	1
		1705	}
		1706
		1707	sub load_header_orig {
		1708	my ($self) = @_;
		1709
		1710	$self->load_header_from ($self->load_path)
		1711	}
		1712
		1713	sub load_header_temp {
		1714	my ($self) = @_;
		1715
		1716	$self->load_header_from ($self->save_path)
		1717	}
		1718
		1719	sub prepare_temp {
		1720	my ($self) = @_;
		1721
		1722	$self->last_access ((delete $self->{last_access})
		1723	|| $cf::RUNTIME); #d#
		1724	# safety
		1725	$self->{instantiate_time} = $cf::RUNTIME
		1726	if $self->{instantiate_time} > $cf::RUNTIME;
		1727	}
		1728
		1729	sub prepare_orig {
		1730	my ($self) = @_;
		1731
		1732	$self->{load_original} = 1;
		1733	$self->{instantiate_time} = $cf::RUNTIME;
		1734	$self->last_access ($cf::RUNTIME);
		1735	$self->instantiate;
		1736	}
		1737
		1738	sub load_header {
		1739	my ($self) = @_;
		1740
		1741	if ($self->load_header_temp) {
		1742	$self->prepare_temp;
		1743	} else {
		1744	$self->load_header_orig
1105	or return;	1745	or return;
		1746	$self->prepare_orig;
		1747	}
1106		1748
1107	$map->load_header ($path)	1749	$self->{deny_reset} = 1
1108	or return;	1750	if $self->no_reset;
1109		1751
1110	$map->{load_path} = $path;	1752	$self->default_region (cf::region::find_by_path $self->{path})
		1753	unless $self->default_region;
1111		1754
1112	$map	1755	1
1113	}	1756	}
1114		1757
		1758	sub find;
1115	sub find_map {	1759	sub find {
1116	my ($path, $origin) = @_;	1760	my ($path, $origin) = @_;
1117		1761
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1762	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1763
		1764	cf::lock_wait "map_find:$path";
		1765
1123	$cf::MAP{$key} || do {	1766	$cf::MAP{$path} || do {
1124	# do it the slow way	1767	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1768	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;	1769	or return;
1139		1770
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;	1771	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1772
1154	if ($map->should_reset) {	1773	$map->load_header
		1774	or return;
		1775
		1776	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1777	# doing this can freeze the server in a sync job, obviously
		1778	#$cf::WAIT_FOR_TICK->wait;
1155	$map->reset;	1779	$map->reset;
1156	$map = find_map $path;	1780	undef $guard;
		1781	return find $path;
1157	}	1782	}
1158		1783
1159	$cf::MAP{$key} = $map	1784	$cf::MAP{$path} = $map
1160	}	1785	}
1161	}	1786	}
		1787
		1788	sub pre_load { }
		1789	sub post_load { }
1162		1790
1163	sub load {	1791	sub load {
1164	my ($self) = @_;	1792	my ($self) = @_;
1165		1793
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1794	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1795
1170	my $path = $self->{path};	1796	my $path = $self->{path};
1171		1797
		1798	{
		1799	my $guard = cf::lock_acquire "map_load:$path";
		1800
		1801	return if $self->in_memory != cf::MAP_SWAPPED;
		1802
		1803	$self->in_memory (cf::MAP_LOADING);
		1804
1172	$self->alloc;	1805	$self->alloc;
		1806
		1807	$self->pre_load;
		1808	Coro::cede;
		1809
1173	$self->load_objects ($self->{load_path}, 1)	1810	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1811	or return;
1175		1812
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1813	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1814	if delete $self->{load_original};
1178		1815
1179	if (my $uniq = $path->uniq_path) {	1816	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1817	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1818	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1819	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1820	$self->_load_objects ($uniq, 0);
1184	}	1821	}
1185	}	1822	}
1186		1823
		1824	Coro::cede;
1187	# now do the right thing for maps	1825	# now do the right thing for maps
1188	$self->link_multipart_objects;	1826	$self->link_multipart_objects;
1189
1190	if ($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)	1827	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1828	unless $self->difficulty;
		1829	Coro::cede;
		1830
		1831	unless ($self->{deny_activate}) {
		1832	$self->decay_objects;
		1833	$self->fix_auto_apply;
		1834	$self->update_buttons;
		1835	Coro::cede;
		1836	$self->set_darkness_map;
		1837	Coro::cede;
1200	$self->activate;	1838	$self->activate;
1201	}	1839	}
1202		1840
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1841	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1842	}
1205		1843
1206	sub load_map_sync {	1844	$self->post_load;
		1845	}
		1846
		1847	sub customise_for {
		1848	my ($self, $ob) = @_;
		1849
		1850	return find "~" . $ob->name . "/" . $self->{path}
		1851	if $self->per_player;
		1852
		1853	# return find "?party/" . $ob->name . "/" . $self->{path}
		1854	# if $self->per_party;
		1855
		1856	$self
		1857	}
		1858
		1859	# find and load all maps in the 3x3 area around a map
		1860	sub load_diag {
		1861	my ($map) = @_;
		1862
		1863	my @diag; # diagonal neighbours
		1864
		1865	for (0 .. 3) {
		1866	my $neigh = $map->tile_path ($_)
		1867	or next;
		1868	$neigh = find $neigh, $map
		1869	or next;
		1870	$neigh->load;
		1871
		1872	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1873	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1874	}
		1875
		1876	for (@diag) {
		1877	my $neigh = find @$_
		1878	or next;
		1879	$neigh->load;
		1880	}
		1881	}
		1882
		1883	sub find_sync {
1207	my ($path, $origin) = @_;	1884	my ($path, $origin) = @_;
1208		1885
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1886	cf::sync_job { find $path, $origin }
		1887	}
1210		1888
1211	cf::sync_job {	1889	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1890	my ($map) = @_;
1213	or return;	1891
		1892	cf::sync_job { $map->load };
		1893	}
		1894
		1895	our %MAP_PREFETCH;
		1896	our $MAP_PREFETCHER = undef;
		1897
		1898	sub find_async {
		1899	my ($path, $origin) = @_;
		1900
		1901	$path = normalise $path, $origin && $origin->{path};
		1902
		1903	if (my $map = $cf::MAP{$path}) {
		1904	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1905	}
		1906
		1907	undef $MAP_PREFETCH{$path};
		1908	$MAP_PREFETCHER ||= cf::async {
		1909	while (%MAP_PREFETCH) {
		1910	for my $path (keys %MAP_PREFETCH) {
		1911	my $map = find $path
		1912	or next;
1214	$map->load;	1913	$map->load;
1215	$map	1914
		1915	delete $MAP_PREFETCH{$path};
		1916	}
		1917	}
		1918	undef $MAP_PREFETCHER;
1216	}	1919	};
		1920	$MAP_PREFETCHER->prio (6);
		1921
		1922	()
1217	}	1923	}
1218		1924
1219	sub save {	1925	sub save {
1220	my ($self) = @_;	1926	my ($self) = @_;
1221		1927
		1928	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1929
1222	$self->{last_save} = $cf::RUNTIME;	1930	$self->{last_save} = $cf::RUNTIME;
1223		1931
1224	return unless $self->dirty;	1932	return unless $self->dirty;
1225		1933
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1934	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1935	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1936
1229	$self->{load_path} = $save;	1937	$self->{load_path} = $save;
1230		1938
1231	return if $self->{deny_save};	1939	return if $self->{deny_save};
1232		1940
		1941	local $self->{last_access} = $self->last_access;#d#
		1942
		1943	cf::async {
		1944	$_->contr->save for $self->players;
		1945	};
		1946
1233	if ($uniq) {	1947	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1948	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1949	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1950	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1951	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1952	}
1239	}	1953	}
1240		1954
1241	sub swap_out {	1955	sub swap_out {
1242	my ($self) = @_;	1956	my ($self) = @_;
		1957
		1958	# save first because save cedes
		1959	$self->save;
		1960
		1961	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1962
1244	return if $self->players;	1963	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1964	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1965	return if $self->{deny_save};
1247		1966
1248	$self->save;
1249	$self->clear;	1967	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1968	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1969	}
1252		1970
1253	sub reset_at {	1971	sub reset_at {
1254	my ($self) = @_;	1972	my ($self) = @_;
1255		1973
1256	# TODO: safety, remove and allow resettable per-player maps	1974	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};
1258	return 1e99 if $self->{deny_reset};	1975	return 1e99 if $self->{deny_reset};
1259		1976
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1977	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1978	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1979
…		…
1267	my ($self) = @_;	1984	my ($self) = @_;
1268		1985
1269	$self->reset_at <= $cf::RUNTIME	1986	$self->reset_at <= $cf::RUNTIME
1270	}	1987	}
1271		1988
1272	sub unlink_save {
1273	my ($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	$self->save;
1291	}
1292
1293	sub reset {	1989	sub reset {
1294	my ($self) = @_;	1990	my ($self) = @_;
1295		1991
		1992	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1993
1296	return if $self->players;	1994	return if $self->players;
1297	return if $self->{path}{user_rel};#d#
1298		1995
1299	warn "resetting map ", $self->path;#d#	1996	warn "resetting map ", $self->path;
		1997
		1998	$self->in_memory (cf::MAP_SWAPPED);
		1999
		2000	# need to save uniques path
		2001	unless ($self->{deny_save}) {
		2002	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2003
		2004	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2005	if $uniq;
		2006	}
1300		2007
1301	delete $cf::MAP{$self->path};	2008	delete $cf::MAP{$self->path};
		2009
		2010	$self->clear;
1302		2011
1303	$_->clear_links_to ($self) for values %cf::MAP;	2012	$_->clear_links_to ($self) for values %cf::MAP;
1304		2013
1305	$self->unlink_save;	2014	$self->unlink_save;
1306	$self->destroy;	2015	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	2018	my $nuke_counter = "aaaa";
1310		2019
1311	sub nuke {	2020	sub nuke {
1312	my ($self) = @_;	2021	my ($self) = @_;
1313		2022
		2023	delete $cf::MAP{$self->path};
		2024
		2025	$self->unlink_save;
		2026
		2027	bless $self, "cf::map";
		2028	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	2029	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	2030	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	2031	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2032
		2033	$cf::MAP{$self->path} = $self;
		2034
1317	$self->reset; # polite request, might not happen	2035	$self->reset; # polite request, might not happen
1318	}	2036	}
1319		2037
1320	sub customise_for {	2038	=item $maps = cf::map::tmp_maps
1321	my ($map, $ob) = @_;
1322		2039
1323	if ($map->per_player) {	2040	Returns an arrayref with all map paths of currently instantiated and saved
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2041	maps. May block.
		2042
		2043	=cut
		2044
		2045	sub tmp_maps() {
1325	}	2046	[
1326		2047	map {
1327	$map	2048	utf8::decode $_;
		2049	/\.map$/
		2050	? normalise $_
		2051	: ()
		2052	} @{ aio_readdir $TMPDIR or [] }
		2053	]
1328	}	2054	}
1329		2055
1330	sub emergency_save {	2056	=item $maps = cf::map::random_maps
1331	local $cf::FREEZE = 1;
1332		2057
1333	warn "enter emergency map save\n";	2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	random maps. May block.
1334		2060
1335	cf::sync_job {	2061	=cut
1336	warn "begin emergency map save\n";
1337	$_->save for values %cf::MAP;
1338	};
1339		2062
1340	warn "end emergency map save\n";	2063	sub random_maps() {
		2064	[
		2065	map {
		2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise "?random/$_"
		2069	: ()
		2070	} @{ aio_readdir $RANDOMDIR or [] }
		2071	]
		2072	}
		2073
		2074	=item cf::map::unique_maps
		2075
		2076	Returns an arrayref of paths of all shared maps that have
		2077	instantiated unique items. May block.
		2078
		2079	=cut
		2080
		2081	sub unique_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise $_
		2087	: ()
		2088	} @{ aio_readdir $UNIQUEDIR or [] }
		2089	]
1341	}	2090	}
1342		2091
1343	package cf;	2092	package cf;
1344		2093
1345	=back	2094	=back
1346		2095
		2096	=head3 cf::object
		2097
		2098	=cut
		2099
		2100	package cf::object;
		2101
		2102	=over 4
		2103
		2104	=item $ob->inv_recursive
		2105
		2106	Returns the inventory of the object _and_ their inventories, recursively.
		2107
		2108	=cut
		2109
		2110	sub inv_recursive_;
		2111	sub inv_recursive_ {
		2112	map { $_, inv_recursive_ $_->inv } @_
		2113	}
		2114
		2115	sub inv_recursive {
		2116	inv_recursive_ inv $_[0]
		2117	}
		2118
		2119	package cf;
		2120
		2121	=back
1347		2122
1348	=head3 cf::object::player	2123	=head3 cf::object::player
1349		2124
1350	=over 4	2125	=over 4
1351		2126
…		…
1365		2140
1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2141	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1367		2142
1368	if ($self->{record_replies}) {	2143	if ($self->{record_replies}) {
1369	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2144	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2145
1370	} else {	2146	} else {
		2147	my $pl = $self->contr;
		2148
		2149	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2150	my $diag = $pl->{npc_dialog};
		2151	$diag->{pl}->ext_reply (
		2152	$diag->{id},
		2153	msgtype => "reply",
		2154	msg => $diag->{pl}->expand_cfpod ($msg),
		2155	add_topics => []
		2156	);
		2157
		2158	} else {
1371	$msg = $npc->name . " says: $msg" if $npc;	2159	$msg = $npc->name . " says: $msg" if $npc;
1372	$self->message ($msg, $flags);	2160	$self->message ($msg, $flags);
		2161	}
1373	}	2162	}
1374	}	2163	}
1375		2164
1376	=item $player_object->may ("access")	2165	=item $player_object->may ("access")
1377		2166
…		…
1391		2180
1392	=item $player_object->enter_link	2181	=item $player_object->enter_link
1393		2182
1394	Freezes the player and moves him/her to a special map (C<{link}>).	2183	Freezes the player and moves him/her to a special map (C<{link}>).
1395		2184
1396	The player should be reaosnably safe there for short amounts of time. You	2185	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.	2186	I<MUST> call C<leave_link> as soon as possible, though.
1398		2187
		2188	Will never block.
		2189
1399	=item $player_object->leave_link ($map, $x, $y)	2190	=item $player_object->leave_link ($map, $x, $y)
1400		2191
1401	Moves the player out of the specila link map onto the given map. If the	2192	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	2193	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	2194	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	2195	fails, to the emergency map position.
1405		2196
1406	Might block.	2197	Might block.
1407		2198
1408	=cut	2199	=cut
		2200
		2201	sub link_map {
		2202	unless ($LINK_MAP) {
		2203	$LINK_MAP = cf::map::find "{link}"
		2204	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2205	$LINK_MAP->load;
		2206	}
		2207
		2208	$LINK_MAP
		2209	}
1409		2210
1410	sub cf::object::player::enter_link {	2211	sub cf::object::player::enter_link {
1411	my ($self) = @_;	2212	my ($self) = @_;
1412		2213
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;	2214	$self->deactivate_recursive;
		2215
		2216	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2217
		2218	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2219	if $self->map && $self->map->{path} ne "{link}";
		2220
		2221	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1420	}	2222	}
1421		2223
1422	sub cf::object::player::leave_link {	2224	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	2225	my ($self, $map, $x, $y) = @_;
		2226
		2227	return unless $self->contr->active;
1424		2228
1425	my $link_pos = delete $self->{_link_pos};	2229	my $link_pos = delete $self->{_link_pos};
1426		2230
1427	unless ($map) {	2231	unless ($map) {
1428	# restore original map position	2232	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	2233	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	2234	$map = cf::map::find $map;
1431		2235
1432	unless ($map) {	2236	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	2237	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	2238	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	2239	or die "FATAL: cannot load emergency map\n";
1436	}	2240	}
1437	}	2241	}
1438		2242
1439	($x, $y) = (-1, -1)	2243	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	2246	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	2247	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	2248	if $x <=0 && $y <= 0;
1445		2249
1446	$map->load;	2250	$map->load;
		2251	$map->load_diag;
1447		2252
		2253	return unless $self->contr->active;
1448	$self->activate_recursive;	2254	$self->activate_recursive;
		2255
		2256	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	2257	$self->enter_map ($map, $x, $y);
1450	}	2258	}
1451		2259
1452	=item $player_object->goto_map ($path, $x, $y)	2260	=item $player_object->goto ($path, $x, $y[, $check->($map)])
1453		2261
1454	=cut	2262	Moves the player to the given map-path and coordinates by first freezing
		2263	her, loading and preparing them map, calling the provided $check callback
		2264	that has to return the map if sucecssful, and then unfreezes the player on
		2265	the new (success) or old (failed) map position.
1455		2266
		2267	=cut
		2268
		2269	our $GOTOGEN;
		2270
1456	sub cf::object::player::goto_map {	2271	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	2272	my ($self, $path, $x, $y, $check) = @_;
		2273
		2274	# do generation counting so two concurrent goto's will be executed in-order
		2275	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1458		2276
1459	$self->enter_link;	2277	$self->enter_link;
1460		2278
1461	(Coro::async {	2279	(async {
1462	$path = new cf::path $path;	2280	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	2281	my $map = cf::map::find $path;
		2282
		2283	if ($map) {
1465	$map = $map->customise_for ($self) if $map;	2284	$map = $map->customise_for ($self);
1466		2285	$map = $check->($map) if $check && $map;
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	2286	} else {
1468	# if $map;
1469
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2287	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2288	}
1471		2289
		2290	$map
		2291	};
		2292
		2293	if ($@) {
		2294	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2295	LOG llevError | logBacktrace, Carp::longmess $@;
		2296	}
		2297
		2298	if ($gen == $self->{_goto_generation}) {
		2299	delete $self->{_goto_generation};
1472	$self->leave_link ($map, $x, $y);	2300	$self->leave_link ($map, $x, $y);
		2301	}
1473	})->prio (1);	2302	})->prio (1);
1474	}	2303	}
1475		2304
1476	=item $player_object->enter_exit ($exit_object)	2305	=item $player_object->enter_exit ($exit_object)
1477		2306
…		…
1479		2308
1480	sub parse_random_map_params {	2309	sub parse_random_map_params {
1481	my ($spec) = @_;	2310	my ($spec) = @_;
1482		2311
1483	my $rmp = { # defaults	2312	my $rmp = { # defaults
1484	xsize => 10,	2313	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2314	ysize => (cf::rndm 15, 40),
		2315	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2316	#layout => string,
1486	};	2317	};
1487		2318
1488	for (split /\n/, $spec) {	2319	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2320	my ($k, $v) = split /\s+/, $_, 2;
1490		2321
…		…
1494	$rmp	2325	$rmp
1495	}	2326	}
1496		2327
1497	sub prepare_random_map {	2328	sub prepare_random_map {
1498	my ($exit) = @_;	2329	my ($exit) = @_;
		2330
		2331	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2332
1500	# all this does is basically replace the /! path by	2333	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2334	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2335	# that depends on the exit object
1503		2336
1504	my $rmp = parse_random_map_params $exit->msg;	2337	my $rmp = parse_random_map_params $exit->msg;
1505		2338
1506	if ($exit->map) {	2339	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2340	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2341	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2342	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2343	$rmp->{origin_y} = $exit->y;
1511	}	2344	}
1512		2345
1513	$rmp->{random_seed} ||= $exit->random_seed;	2346	$rmp->{random_seed} ||= $exit->random_seed;
1514		2347
1515	my $data = cf::to_json $rmp;	2348	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2349	my $md5 = Digest::MD5::md5_hex $data;
		2350	my $meta = "$RANDOMDIR/$md5.meta";
1517		2351
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2352	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2353	aio_write $fh, 0, (length $data), $data, 0;
		2354	undef $fh;
		2355	aio_rename "$meta~", $meta;
1520		2356
1521	$exit->slaying ("?random/$md5");	2357	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2358	$exit->msg (undef);
1523	}	2359	}
1524	}	2360	}
…		…
1526	sub cf::object::player::enter_exit {	2362	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2363	my ($self, $exit) = @_;
1528		2364
1529	return unless $self->type == cf::PLAYER;	2365	return unless $self->type == cf::PLAYER;
1530		2366
		2367	if ($exit->slaying eq "/!") {
		2368	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2369	# the problem is that $exit might not survive long enough
		2370	# so it needs to be done right now, right here
		2371	cf::sync_job { prepare_random_map $exit };
		2372	}
		2373
		2374	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2375	my $hp = $exit->stats->hp;
		2376	my $sp = $exit->stats->sp;
		2377
1531	$self->enter_link;	2378	$self->enter_link;
1532		2379
		2380	# if exit is damned, update players death & WoR home-position
		2381	$self->contr->savebed ($slaying, $hp, $sp)
		2382	if $exit->flag (FLAG_DAMNED);
		2383
1533	(Coro::async {	2384	(async {
		2385	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2386	unless (eval {
1535		2387	$self->goto ($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		2388
1542	1;	2389	1;
1543	}) {	2390	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2391	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	2392	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2393	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2394	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2395
1549	warn "ERROR in enter_exit: $@";	2396	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2397	$self->leave_link;
1551	}	2398	}
1552	})->prio (1);	2399	})->prio (1);
…		…
1565		2412
1566	sub cf::client::send_drawinfo {	2413	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2414	my ($self, $text, $flags) = @_;
1568		2415
1569	utf8::encode $text;	2416	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2417	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2418	}
1572		2419
		2420	=item $client->send_msg ($color, $type, $msg, [extra...])
		2421
		2422	Send a drawinfo or msg packet to the client, formatting the msg for the
		2423	client if neccessary. C<$type> should be a string identifying the type of
		2424	the message, with C<log> being the default. If C<$color> is negative, suppress
		2425	the message unless the client supports the msg packet.
		2426
		2427	=cut
		2428
		2429	sub cf::client::send_msg {
		2430	my ($self, $color, $type, $msg, @extra) = @_;
		2431
		2432	$msg = $self->pl->expand_cfpod ($msg);
		2433
		2434	return unless @extra || length $msg;
		2435
		2436	if ($self->can_msg) {
		2437	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2438	} else {
		2439	# replace some tags by gcfclient-compatible ones
		2440	for ($msg) {
		2441	1 while
		2442	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2443	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2444	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2445	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2446	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2447	}
		2448
		2449	if ($color >= 0) {
		2450	if (0 && $msg =~ /\[/) {
		2451	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2452	} else {
		2453	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2454	$self->send_packet ("drawinfo $color $msg")
		2455	}
		2456	}
		2457	}
		2458	}
		2459
		2460	=item $client->ext_event ($type, %msg)
		2461
		2462	Sends an ext event to the client.
		2463
		2464	=cut
		2465
		2466	sub cf::client::ext_event($$%) {
		2467	my ($self, $type, %msg) = @_;
		2468
		2469	$msg{msgtype} = "event_$type";
		2470	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2471	}
1573		2472
1574	=item $success = $client->query ($flags, "text", \&cb)	2473	=item $success = $client->query ($flags, "text", \&cb)
1575		2474
1576	Queues a query to the client, calling the given callback with	2475	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>,	2476	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>.	2477	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1579		2478
1580	Queries can fail, so check the return code. Or don't, as queries will become	2479	Queries can fail, so check the return code. Or don't, as queries will
1581	reliable at some point in the future.	2480	become reliable at some point in the future.
1582		2481
1583	=cut	2482	=cut
1584		2483
1585	sub cf::client::query {	2484	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	2485	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	2493	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2494	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		2495
1597	$self->send_packet ($self->{query_queue}[0][0])	2496	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	2497	if @{ $self->{query_queue} } == 1;
		2498
		2499	1
1599	}	2500	}
1600		2501
1601	cf::client->attach (	2502	cf::client->attach (
		2503	on_connect => sub {
		2504	my ($ns) = @_;
		2505
		2506	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2507	},
1602	on_reply => sub {	2508	on_reply => sub {
1603	my ($ns, $msg) = @_;	2509	my ($ns, $msg) = @_;
1604		2510
1605	# this weird shuffling is so that direct followup queries	2511	# this weird shuffling is so that direct followup queries
1606	# get handled first	2512	# get handled first
1607	my $queue = delete $ns->{query_queue};	2513	my $queue = delete $ns->{query_queue}
		2514	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2515
1609	(shift @$queue)->[1]->($msg);	2516	(shift @$queue)->[1]->($msg);
		2517	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2518
1611	push @{ $ns->{query_queue} }, @$queue;	2519	push @{ $ns->{query_queue} }, @$queue;
1612		2520
1613	if (@{ $ns->{query_queue} } == @$queue) {	2521	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2522	if (@$queue) {
…		…
1616	} else {	2524	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2525	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	2526	}
1619	}	2527	}
1620	},	2528	},
		2529	on_exticmd => sub {
		2530	my ($ns, $buf) = @_;
		2531
		2532	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2533
		2534	if (ref $msg) {
		2535	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2536	if (my %reply = $cb->($ns, $msg)) {
		2537	$reply{msgid} = $msg->{msgid};
		2538	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2539	}
		2540	}
		2541	} else {
		2542	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2543	}
		2544
		2545	cf::override;
		2546	},
1621	);	2547	);
1622		2548
1623	=item $client->coro (\&cb)	2549	=item $client->async (\&cb)
1624		2550
1625	Create a new coroutine, running the specified callback. The coroutine will	2551	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2552	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2553	or loss of connection).
1628		2554
1629	=cut	2555	=cut
1630		2556
1631	sub cf::client::coro {	2557	sub cf::client::async {
1632	my ($self, $cb) = @_;	2558	my ($self, $cb) = @_;
1633		2559
1634	my $coro; $coro = async {	2560	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2561
1641	$coro->on_destroy (sub {	2562	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2563	delete $self->{_coro}{$coro+0};
1643	});	2564	});
1644		2565
…		…
1677		2598
1678	# here we export the classes and methods available to script code	2599	# here we export the classes and methods available to script code
1679		2600
1680	=pod	2601	=pod
1681		2602
1682	The following fucntions and emthods are available within a safe environment:	2603	The following functions and methods are available within a safe environment:
1683		2604
1684	cf::object contr pay_amount pay_player map	2605	cf::object
		2606	contr pay_amount pay_player map x y force_find force_add
		2607	insert remove
		2608
1685	cf::object::player player	2609	cf::object::player
1686	cf::player peaceful	2610	player
1687	cf::map trigger	2611
		2612	cf::player
		2613	peaceful
		2614
		2615	cf::map
		2616	trigger
1688		2617
1689	=cut	2618	=cut
1690		2619
1691	for (	2620	for (
1692	["cf::object" => qw(contr pay_amount pay_player map)],	2621	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2622	insert remove)],
1693	["cf::object::player" => qw(player)],	2623	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	2624	["cf::player" => qw(peaceful)],
1695	["cf::map" => qw(trigger)],	2625	["cf::map" => qw(trigger)],
1696	) {	2626	) {
1697	no strict 'refs';	2627	no strict 'refs';
…		…
1768	=back	2698	=back
1769		2699
1770	=cut	2700	=cut
1771		2701
1772	#############################################################################	2702	#############################################################################
		2703	# the server's init and main functions
1773		2704
1774	=head2 EXTENSION DATABASE SUPPORT	2705	sub load_facedata($) {
		2706	my ($path) = @_;
1775		2707
1776	Crossfire maintains a very simple database for extension use. It can	2708	warn "loading facedata from $path\n";
1777	currently store anything that can be serialised using Storable, which
1778	excludes objects.
1779		2709
1780	The parameter C<$family> should best start with the name of the extension	2710	my $facedata;
1781	using it, it should be unique.	2711	0 < aio_load $path, $facedata
		2712	or die "$path: $!";
1782		2713
1783	=over 4	2714	$facedata = Coro::Storable::thaw $facedata;
1784		2715
1785	=item $hashref = cf::db_get $family	2716	$facedata->{version} == 2
		2717	or cf::cleanup "$path: version mismatch, cannot proceed.";
1786		2718
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	}	2719	{
		2720	my $faces = $facedata->{faceinfo};
1824		2721
1825	my $pid;	2722	while (my ($face, $info) = each %$faces) {
1826		2723	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1827	sub db_save() {	2724	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
1828	warn "saving database $path\n";#d# remove later	2725	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
1829	waitpid $pid, 0 if $pid;	2726	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1830	if (0 == ($pid = fork)) {	2727	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]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868
1869	cf::global->attach (
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	2728	}
1874	);
1875	}
1876		2729
1877	#############################################################################	2730	while (my ($face, $info) = each %$faces) {
1878	# the server's main()	2731	next unless $info->{smooth};
		2732	my $idx = cf::face::find $face
		2733	or next;
		2734	if (my $smooth = cf::face::find $info->{smooth}) {
		2735	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2736	} else {
		2737	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2738	}
		2739	Coro::cede;
		2740	}
		2741	}
		2742
		2743	{
		2744	my $anims = $facedata->{animinfo};
		2745
		2746	while (my ($anim, $info) = each %$anims) {
		2747	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2748	Coro::cede;
		2749	}
		2750
		2751	cf::anim::invalidate_all; # d'oh
		2752	}
		2753
		2754	1
		2755	}
		2756
		2757	sub reload_regions {
		2758	load_resource_file "$MAPDIR/regions"
		2759	or die "unable to load regions file\n";
		2760	}
		2761
		2762	sub reload_facedata {
		2763	load_facedata "$DATADIR/facedata"
		2764	or die "unable to load facedata\n";
		2765	}
		2766
		2767	sub reload_archetypes {
		2768	load_resource_file "$DATADIR/archetypes"
		2769	or die "unable to load archetypes\n";
		2770	#d# NEED to laod twice to resolve forward references
		2771	# this really needs to be done in an extra post-pass
		2772	# (which needs to be synchronous, so solve it differently)
		2773	load_resource_file "$DATADIR/archetypes"
		2774	or die "unable to load archetypes\n";
		2775	}
		2776
		2777	sub reload_treasures {
		2778	load_resource_file "$DATADIR/treasures"
		2779	or die "unable to load treasurelists\n";
		2780	}
		2781
		2782	sub reload_resources {
		2783	warn "reloading resource files...\n";
		2784
		2785	reload_regions;
		2786	reload_facedata;
		2787	#reload_archetypes;#d#
		2788	reload_archetypes;
		2789	reload_treasures;
		2790
		2791	warn "finished reloading resource files\n";
		2792	}
		2793
		2794	sub init {
		2795	reload_resources;
		2796	}
1879		2797
1880	sub cfg_load {	2798	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2799	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2800	or return;
1883		2801
1884	local $/;	2802	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2803	*CFG = YAML::Syck::Load <$fh>;
		2804
		2805	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2806
		2807	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2808	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2809
		2810	if (exists $CFG{mlockall}) {
		2811	eval {
		2812	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2813	and die "WARNING: m(un)lockall failed: $!\n";
		2814	};
		2815	warn $@ if $@;
		2816	}
1886	}	2817	}
1887		2818
1888	sub main {	2819	sub main {
1889	# we must not ever block the main coroutine	2820	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2821	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2822	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2823	(async {
1893	Event::one_event;	2824	Event::one_event;
1894	})->();	2825	})->prio (Coro::PRIO_MAX);
1895	};	2826	};
1896		2827
1897	cfg_load;	2828	cfg_load;
1898	db_load;	2829	db_init;
1899	load_extensions;	2830	load_extensions;
		2831
		2832	$TICK_WATCHER->start;
1900	Event::loop;	2833	Event::loop;
1901	}	2834	}
1902		2835
1903	#############################################################################	2836	#############################################################################
1904	# initialisation	2837	# initialisation and cleanup
1905		2838
		2839	# install some emergency cleanup handlers
		2840	BEGIN {
		2841	for my $signal (qw(INT HUP TERM)) {
		2842	Event->signal (
		2843	reentrant => 0,
		2844	data => WF_AUTOCANCEL,
		2845	signal => $signal,
		2846	prio => 0,
		2847	cb => sub {
		2848	cf::cleanup "SIG$signal";
		2849	},
		2850	);
		2851	}
		2852	}
		2853
		2854	sub write_runtime {
		2855	my $runtime = "$LOCALDIR/runtime";
		2856
		2857	# first touch the runtime file to show we are still running:
		2858	# the fsync below can take a very very long time.
		2859
		2860	IO::AIO::aio_utime $runtime, undef, undef;
		2861
		2862	my $guard = cf::lock_acquire "write_runtime";
		2863
		2864	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2865	or return;
		2866
		2867	my $value = $cf::RUNTIME + 90 + 10;
		2868	# 10 is the runtime save interval, for a monotonic clock
		2869	# 60 allows for the watchdog to kill the server.
		2870
		2871	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2872	and return;
		2873
		2874	# always fsync - this file is important
		2875	aio_fsync $fh
		2876	and return;
		2877
		2878	# touch it again to show we are up-to-date
		2879	aio_utime $fh, undef, undef;
		2880
		2881	close $fh
		2882	or return;
		2883
		2884	aio_rename "$runtime~", $runtime
		2885	and return;
		2886
		2887	warn "runtime file written.\n";
		2888
		2889	1
		2890	}
		2891
		2892	sub emergency_save() {
		2893	my $freeze_guard = cf::freeze_mainloop;
		2894
		2895	warn "enter emergency perl save\n";
		2896
		2897	cf::sync_job {
		2898	# use a peculiar iteration method to avoid tripping on perl
		2899	# refcount bugs in for. also avoids problems with players
		2900	# and maps saved/destroyed asynchronously.
		2901	warn "begin emergency player save\n";
		2902	for my $login (keys %cf::PLAYER) {
		2903	my $pl = $cf::PLAYER{$login} or next;
		2904	$pl->valid or next;
		2905	$pl->save;
		2906	}
		2907	warn "end emergency player save\n";
		2908
		2909	warn "begin emergency map save\n";
		2910	for my $path (keys %cf::MAP) {
		2911	my $map = $cf::MAP{$path} or next;
		2912	$map->valid or next;
		2913	$map->save;
		2914	}
		2915	warn "end emergency map save\n";
		2916
		2917	warn "begin emergency database checkpoint\n";
		2918	BDB::db_env_txn_checkpoint $DB_ENV;
		2919	warn "end emergency database checkpoint\n";
		2920	};
		2921
		2922	warn "leave emergency perl save\n";
		2923	}
		2924
		2925	sub post_cleanup {
		2926	my ($make_core) = @_;
		2927
		2928	warn Carp::longmess "post_cleanup backtrace"
		2929	if $make_core;
		2930	}
		2931
1906	sub reload() {	2932	sub do_reload_perl() {
1907	# can/must only be called in main	2933	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2934	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2935	warn "can only reload from main coroutine";
1910	return;	2936	return;
1911	}	2937	}
1912		2938
1913	warn "reloading...";	2939	warn "reloading...";
1914		2940
1915	local $FREEZE = 1;	2941	warn "entering sync_job";
		2942
		2943	cf::sync_job {
		2944	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	2945	cf::emergency_save;
		2946	cf::write_runtime; # external watchdog should not bark
1917		2947
1918	eval {	2948	warn "syncing database to disk";
		2949	BDB::db_env_txn_checkpoint $DB_ENV;
		2950
1919	# if anything goes wrong in here, we should simply crash as we already saved	2951	# if anything goes wrong in here, we should simply crash as we already saved
1920		2952
1921	# cancel all watchers	2953	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	2954	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	2955	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	2956	}
1925		2957
		2958	warn "flushing outstanding aio requests";
		2959	for (;;) {
		2960	BDB::flush;
		2961	IO::AIO::flush;
		2962	Coro::cede;
		2963	last unless IO::AIO::nreqs || BDB::nreqs;
		2964	warn "iterate...";
		2965	}
		2966
		2967	++$RELOAD;
		2968
1926	# cancel all extension coros	2969	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	2970	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	2971	%EXT_CORO = ();
1929		2972
1930	# unload all extensions	2973	warn "removing commands";
1931	for (@exts) {	2974	%COMMAND = ();
		2975
		2976	warn "removing ext/exti commands";
		2977	%EXTCMD = ();
		2978	%EXTICMD = ();
		2979
		2980	warn "unloading/nuking all extensions";
		2981	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	2982	warn "... unloading $pkg";
1933	unload_extension $_;	2983
		2984	if (my $cb = $pkg->can ("unload")) {
		2985	eval {
		2986	$cb->($pkg);
		2987	1
		2988	} or warn "$pkg unloaded, but with errors: $@";
1934	}	2989	}
1935		2990
		2991	warn "... nuking $pkg";
		2992	Symbol::delete_package $pkg;
		2993	}
		2994
1936	# unload all modules loaded from $LIBDIR	2995	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	2996	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2997	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		2998
1940	warn "removing <$k>";	2999	warn "... unloading $k";
1941	delete $INC{$k};	3000	delete $INC{$k};
1942		3001
1943	$k =~ s/\.pm$//;	3002	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	3003	$k =~ s/\//::/g;
1945		3004
…		…
1948	}	3007	}
1949		3008
1950	Symbol::delete_package $k;	3009	Symbol::delete_package $k;
1951	}	3010	}
1952		3011
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	3012	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	3013	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3014	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		3015
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	3016	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	3017	delete $INC{"cf.pm"};
		3018	delete $INC{"cf/pod.pm"};
1966		3019
1967	# don't, removes xs symbols, too,	3020	# don't, removes xs symbols, too,
1968	# and global variables created in xs	3021	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	3022	#Symbol::delete_package __PACKAGE__;
1970		3023
1971	# reload cf.pm	3024	warn "unload completed, starting to reload now";
		3025
1972	warn "reloading cf.pm";	3026	warn "reloading cf.pm";
1973	require cf;	3027	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3028	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		3029
1976	# load config and database again	3030	warn "loading config and database again";
1977	cf::cfg_load;	3031	cf::cfg_load;
1978	cf::db_load;
1979		3032
1980	# load extensions
1981	warn "load extensions";	3033	warn "loading extensions";
1982	cf::load_extensions;	3034	cf::load_extensions;
1983		3035
1984	# reattach attachments to objects	3036	warn "reattaching attachments to objects/players";
1985	warn "reattach";	3037	_global_reattach; # objects, sockets
1986	_global_reattach;	3038	warn "reattaching attachments to maps";
1987	};	3039	reattach $_ for values %MAP;
		3040	warn "reattaching attachments to players";
		3041	reattach $_ for values %PLAYER;
1988		3042
1989	if ($@) {	3043	warn "leaving sync_job";
		3044
		3045	1
		3046	} or do {
1990	warn $@;	3047	warn $@;
1991	warn "error while reloading, exiting.";	3048	warn "error while reloading, exiting.";
1992	exit 1;	3049	exit 1;
1993	}	3050	};
1994		3051
1995	warn "reloaded successfully";	3052	warn "reloaded";
1996	};	3053	};
1997		3054
1998	#############################################################################	3055	our $RELOAD_WATCHER; # used only during reload
1999		3056
2000	unless ($LINK_MAP) {	3057	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	3058	# doing reload synchronously and two reloads happen back-to-back,
		3059	# coro crashes during coro_state_free->destroy here.
2002		3060
2003	$LINK_MAP->width (41);	3061	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	3062	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,	3063	after => 0,
		3064	data => WF_AUTOCANCEL,
2013	cb => sub {	3065	cb => sub {
2014	$_[0]->w->cancel;	3066	do_reload_perl;
2015		3067	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	});	3068	},
2034		3069	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	3070	}
2040
2041	register "<global>", __PACKAGE__;
2042		3071
2043	register_command "reload" => sub {	3072	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	3073	my ($who, $arg) = @_;
2045		3074
2046	if ($who->flag (FLAG_WIZ)) {	3075	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	3076	$who->message ("reloading server.");
		3077	async { reload_perl };
2050	}	3078	}
2051	};	3079	};
2052		3080
2053	unshift @INC, $LIBDIR;	3081	unshift @INC, $LIBDIR;
2054		3082
		3083	my $bug_warning = 0;
		3084
		3085	our @WAIT_FOR_TICK;
		3086	our @WAIT_FOR_TICK_BEGIN;
		3087
		3088	sub wait_for_tick {
		3089	return unless $TICK_WATCHER->is_active;
		3090	return if $Coro::current == $Coro::main;
		3091
		3092	my $signal = new Coro::Signal;
		3093	push @WAIT_FOR_TICK, $signal;
		3094	$signal->wait;
		3095	}
		3096
		3097	sub wait_for_tick_begin {
		3098	return unless $TICK_WATCHER->is_active;
		3099	return if $Coro::current == $Coro::main;
		3100
		3101	my $signal = new Coro::Signal;
		3102	push @WAIT_FOR_TICK_BEGIN, $signal;
		3103	$signal->wait;
		3104	}
		3105
		3106	my $min = 1e6;#d#
		3107	my $avg = 10;
2055	$TICK_WATCHER = Event->timer (	3108	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	3109	reentrant => 0,
		3110	parked => 1,
2057	prio => 0,	3111	prio => 0,
2058	at => $NEXT_TICK || $TICK,	3112	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	3113	data => WF_AUTOCANCEL,
2060	cb => sub {	3114	cb => sub {
2061	unless ($FREEZE) {	3115	if ($Coro::current != $Coro::main) {
		3116	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3117	unless ++$bug_warning > 10;
		3118	return;
		3119	}
		3120
		3121	$NOW = $tick_start = Event::time;
		3122
2062	cf::server_tick; # one server iteration	3123	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;	3124
		3125	0 && sync_job {#d#
		3126	for(1..10) {
		3127	my $t = Event::time;
		3128	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3129	or die;
		3130
		3131	$map->width (50);
		3132	$map->height (50);
		3133	$map->alloc;
		3134	$map->_load_objects ("/tmp/x.map", 1);
		3135	my $t = Event::time - $t;
		3136
		3137	#next unless $t < 0.0013;#d#
		3138	if ($t < $min) {
		3139	$min = $t;
		3140	}
		3141	$avg = $avg * 0.99 + $t * 0.01;
		3142	}
		3143	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3144	exit 0;
		3145	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2064	}	3146	};
2065		3147
		3148	$RUNTIME += $TICK;
2066	$NEXT_TICK += $TICK;	3149	$NEXT_TICK += $TICK;
2067		3150
		3151	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3152	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3153	Coro::async_pool {
		3154	write_runtime
		3155	or warn "ERROR: unable to write runtime file: $!";
		3156	};
		3157	}
		3158
		3159	# my $AFTER = Event::time;
		3160	# warn $AFTER - $NOW;#d#
		3161
		3162	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3163	$sig->send;
		3164	}
		3165	while (my $sig = shift @WAIT_FOR_TICK) {
		3166	$sig->send;
		3167	}
		3168
		3169	$NOW = Event::time;
		3170
2068	# if we are delayed by four ticks or more, skip them all	3171	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3172	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		3173
2071	$TICK_WATCHER->at ($NEXT_TICK);	3174	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	3175	$TICK_WATCHER->start;
		3176
		3177	$LOAD = ($NOW - $tick_start) / $TICK;
		3178	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3179
		3180	_post_tick;
		3181
		3182
2073	},	3183	},
2074	);	3184	);
2075		3185
		3186	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	3187	BDB::max_poll_time $TICK * 0.1;
2077		3188	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	3189	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	3190	fd => BDB::poll_fileno,
2080	poll => 'r',	3191	poll => 'r',
2081	prio => 5,	3192	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	3193	data => WF_AUTOCANCEL,
2088	after => 0,	3194	cb => \&BDB::poll_cb,
2089	interval => 10,	3195	);
2090	cb => sub {	3196	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	3197
2092	write_runtime	3198	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	3199	my $status;
		3200	my $current = $Coro::current;
		3201	(
		3202	sub {
		3203	$status = $!;
		3204	$current->ready; undef $current;
		3205	},
		3206	sub {
		3207	Coro::schedule while defined $current;
		3208	$! = $status;
		3209	},
		3210	)
		3211	};
		3212
		3213	unless ($DB_ENV) {
		3214	$DB_ENV = BDB::db_env_create;
		3215
		3216	cf::sync_job {
		3217	eval {
		3218	BDB::db_env_open
		3219	$DB_ENV,
		3220	$BDBDIR,
		3221	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3222	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3223	0666;
		3224
		3225	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3226
		3227	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3228	$DB_ENV->set_lk_detect;
		3229	};
		3230
		3231	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	3232	};
2095	},	3233	}
2096	);	3234	}
		3235
		3236	{
		3237	IO::AIO::min_parallel 8;
		3238
		3239	undef $Coro::AIO::WATCHER;
		3240	IO::AIO::max_poll_time $TICK * 0.1;
		3241	$AIO_POLL_WATCHER = Event->io (
		3242	reentrant => 0,
		3243	data => WF_AUTOCANCEL,
		3244	fd => IO::AIO::poll_fileno,
		3245	poll => 'r',
		3246	prio => 6,
		3247	cb => \&IO::AIO::poll_cb,
		3248	);
		3249	}
		3250
		3251	my $_log_backtrace;
		3252
		3253	sub _log_backtrace {
		3254	my ($msg, @addr) = @_;
		3255
		3256	$msg =~ s/\n//;
		3257
		3258	# limit the # of concurrent backtraces
		3259	if ($_log_backtrace < 2) {
		3260	++$_log_backtrace;
		3261	async {
		3262	my @bt = fork_call {
		3263	@addr = map { sprintf "%x", $_ } @addr;
		3264	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3265	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3266	or die "addr2line: $!";
		3267
		3268	my @funcs;
		3269	my @res = <$fh>;
		3270	chomp for @res;
		3271	while (@res) {
		3272	my ($func, $line) = splice @res, 0, 2, ();
		3273	push @funcs, "[$func] $line";
		3274	}
		3275
		3276	@funcs
		3277	};
		3278
		3279	LOG llevInfo, "[ABT] $msg\n";
		3280	LOG llevInfo, "[ABT] $_\n" for @bt;
		3281	--$_log_backtrace;
		3282	};
		3283	} else {
		3284	LOG llevInfo, "[ABT] $msg\n";
		3285	LOG llevInfo, "[ABT] [suppressed]\n";
		3286	}
		3287	}
		3288
		3289	# load additional modules
		3290	use cf::pod;
		3291
		3292	END { cf::emergency_save }
2097		3293
2098	1	3294	1
2099		3295

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