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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 1.311 by root, Fri Jul 20 16:11:10 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	94
55	our $RANDOM_MAPS = cf::localdir . "/random";	95	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
57		101
58	binmode STDOUT;	102	binmode STDOUT;
59	binmode STDERR;	103	binmode STDERR;
60		104
61	# read virtual server time, if available	105	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
66	}	110	}
67		111
68	mkdir cf::localdir;	112	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		114
74	# a special map that is always available	115	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		116
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	117	sub cf::map::normalise;
78		118
79	#############################################################################	119	#############################################################################
80		120
81	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
82		122
…		…
89	=item $cf::RUNTIME	129	=item $cf::RUNTIME
90		130
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	132	every server tick.
93		133
94	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		137
96	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
98		142
99	=item $cf::NOW	143	=item $cf::NOW
100		144
101	The time of the last (current) server tick.	145	The time of the last (current) server tick.
102		146
103	=item $cf::TICK	147	=item $cf::TICK
104		148
105	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
106		160
107	=item %cf::CFG	161	=item %cf::CFG
108		162
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
111		177
112	=back	178	=back
113		179
114	=cut	180	=cut
115		181
116	BEGIN {	182	BEGIN {
117	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	184	my $msg = join "", @_;
119	utf8::encode $msg;
120		185
121	$msg .= "\n"	186	$msg .= "\n"
122	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
123		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
125	};	193	};
126	}	194	}
127		195
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		203
135	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	205	# within the Safe compartment.
137	for my $pkg (qw(	206	for my $pkg (qw(
138	cf::global cf::attachable	207	cf::global cf::attachable
…		…
147		216
148	$Event::DIED = sub {	217	$Event::DIED = sub {
149	warn "error in event callback: @_";	218	warn "error in event callback: @_";
150	};	219	};
151		220
152	my %ext_pkg;	221	#############################################################################
153	my @exts;
154	my @hook;
155		222
156	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
157		224
158	=over 4	225	=over 4
159		226
160	=cut	227	=item dumpval $ref
161		228
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
163		249
164	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
165		251
166	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
167		253
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
176		255
177	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
178		257
179	=cut	258	=cut
180		259
181	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
183	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
		264
		265	=item cf::lock_wait $string
		266
		267	Wait until the given lock is available. See cf::lock_acquire.
		268
		269	=item my $lock = cf::lock_acquire $string
		270
		271	Wait until the given lock is available and then acquires it and returns
		272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		273	for example when the coroutine gets canceled), the lock is automatically
		274	returned.
		275
		276	Lock names should begin with a unique identifier (for example, cf::map::find
		277	uses map_find and cf::map::load uses map_load).
		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
		283	=cut
		284
		285	our %LOCK;
		286
		287	sub lock_wait($) {
		288	my ($key) = @_;
		289
		290	# wait for lock, if any
		291	while ($LOCK{$key}) {
		292	push @{ $LOCK{$key} }, $Coro::current;
		293	Coro::schedule;
		294	}
184	}	295	}
		296
		297	sub lock_acquire($) {
		298	my ($key) = @_;
		299
		300	# wait, to be sure we are not locked
		301	lock_wait $key;
		302
		303	$LOCK{$key} = [];
		304
		305	Coro::guard {
		306	# wake up all waiters, to be on the safe side
		307	$_->ready for @{ delete $LOCK{$key} };
		308	}
		309	}
		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
		317	sub freeze_mainloop {
		318	return unless $TICK_WATCHER->is_active;
		319
		320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
		323	$TICK_WATCHER->stop;
		324	$guard
		325	}
		326
		327	=item cf::async { BLOCK }
		328
		329	Currently the same as Coro::async_pool, meaning you cannot use
		330	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		331	thing you are allowed to do is call C<prio> on it.
		332
		333	=cut
		334
		335	BEGIN { *async = \&Coro::async_pool }
185		336
186	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
187		338
188	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
191		343
192	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
195	fast or be very important.	347	fast or be very important.
…		…
198		350
199	sub sync_job(&) {	351	sub sync_job(&) {
200	my ($job) = @_;	352	my ($job) = @_;
201		353
202	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
203	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
205		359
206	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	361	# (but this is cancel-safe)
208	local $FREEZE = 1;	362	my $freeze_guard = freeze_mainloop;
209		363
210	my $busy = 1;	364	my $busy = 1;
211	my @res;	365	my @res;
212		366
213	(Coro::async {	367	(async {
214	@res = eval { $job->() };	368	@res = eval { $job->() };
215	warn $@ if $@;	369	warn $@ if $@;
216	undef $busy;	370	undef $busy;
217	})->prio (Coro::PRIO_MAX);	371	})->prio (Coro::PRIO_MAX);
218		372
219	while ($busy) {	373	while ($busy) {
220	Coro::cede_notself;	374	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	375	}
		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
223		383
224	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
225	} else {	385	} else {
226	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
227		387
228	$job->()	388	$job->()
229	}	389	}
230	}	390	}
231		391
232	=item $coro = cf::coro { BLOCK }	392	=item $coro = cf::async_ext { BLOCK }
233		393
234	Creates and returns a new coro. This coro is automcatially being canceled	394	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	395	extension calling this is being unloaded.
236		396
237	=cut	397	=cut
238		398
239	sub coro(&) {	399	sub async_ext(&) {
240	my $cb = shift;	400	my $cb = shift;
241		401
242	my $coro; $coro = async {	402	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		403
249	$coro->on_destroy (sub {	404	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	405	delete $EXT_CORO{$coro+0};
251	});	406	});
252	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
253		408
254	$coro	409	$coro
255	}	410	}
256		411
257	sub write_runtime {	412	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		413
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	414	Executes the given code block with the given arguments in a seperate
261	or return;	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
262		418
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	419	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		420
267	aio_fsync $fh	421	sub _store_scalar {
268	and return;	422	open my $fh, ">", \my $buf
269		423	or die "fork_call: cannot open fh-to-buf in child : $!";
		424	Storable::store_fd $_[0], $fh;
270	close $fh	425	close $fh;
271	or return;
272		426
273	aio_rename "$runtime~", $runtime	427	$buf
274	and return;	428	}
275		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
276	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
		588	}
		589
		590	=item cf::datalog type => key => value, ...
		591
		592	Log a datalog packet of the given type with the given key-value pairs.
		593
		594	=cut
		595
		596	sub datalog($@) {
		597	my ($type, %kv) = @_;
		598	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	599	}
278		600
279	=back	601	=back
280		602
281	=cut	603	=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		604
403	#############################################################################	605	#############################################################################
404		606
405	=head2 ATTACHABLE OBJECTS	607	=head2 ATTACHABLE OBJECTS
406		608
…		…
408	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
409	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
410		612
411	In the following description, CLASS can be any of C<global>, C<object>	613	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	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
413	crossfire+).	615	Crossfire TRT).
414		616
415	=over 4	617	=over 4
416		618
417	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
418		620
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	734	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	735	our @CB_MAP = ();
534		736
535	my %attachment;	737	my %attachment;
536		738
		739	sub cf::attachable::thawer_merge {
		740	# simply override everything except _meta
		741	local $_[0]{_meta};
		742	%{$_[0]} = %{$_[1]};
		743	}
		744
537	sub _attach_cb($$$$) {	745	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	746	my ($registry, $event, $prio, $cb) = @_;
539		747
540	use sort 'stable';	748	use sort 'stable';
541		749
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
576		784
577	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		789
582	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	791	my $pkg = shift @arg;
584		792
585	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
615	}	823	}
616		824
617	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
618	} else {	826	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	828	}
621		829
622	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
623	}	831	}
624		832
…		…
626	if (ref $_[0]) {	834	if (ref $_[0]) {
627	_object_attach @_;	835	_object_attach @_;
628	} else {	836	} else {
629	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
630	}	838	}
		839	_recalc_want;
631	};	840	};
632		841
633	# all those should be optimised	842	# all those should be optimised
634	sub cf::attachable::detach {	843	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
639	reattach ($obj);	848	reattach ($obj);
640	} else {	849	} else {
641	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
642	}	851	}
		852	_recalc_want;
643	};	853	};
644		854
645	sub cf::attachable::attached {	855	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
647		857
…		…
662	";	872	";
663	die if $@;	873	die if $@;
664	}	874	}
665		875
666	our $override;	876	our $override;
667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
668		878
669	sub override {	879	sub override {
670	$override = 1;	880	$override = 1;
671	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
672	}	882	}
673		883
674	sub do_invoke {	884	sub do_invoke {
675	my $event = shift;	885	my $event = shift;
676	my $callbacks = shift;	886	my $callbacks = shift;
677		887
678	@invoke_results = ();	888	@INVOKE_RESULTS = ();
679		889
680	local $override;	890	local $override;
681		891
682	for (@$callbacks) {	892	for (@$callbacks) {
683	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
700		910
701	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
702		912
703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
704	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
705	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		916
707	=back	917	=back
708		918
709	=cut	919	=cut
710		920
…		…
712	# object support	922	# object support
713		923
714	sub reattach {	924	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	925	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	926	my ($obj) = @_;
		927
		928	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		929
718	my $registry = $obj->registry;	930	my $registry = $obj->registry;
719		931
720	@$registry = ();	932	@$registry = ();
721		933
…		…
768	$filename, length $$rdata, scalar @$objs;	980	$filename, length $$rdata, scalar @$objs;
769		981
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	982	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	984	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	985	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	986	close $fh;
775		987
776	if (@$objs) {	988	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	989	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	990	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	991	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	992	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	993	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	994	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	995	aio_rename "$filename.pst~", "$filename.pst";
784	}	996	}
785	} else {	997	} else {
786	aio_unlink "$filename.pst";	998	aio_unlink "$filename.pst";
…		…
818	or return;	1030	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1031	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1032	}
821		1033
822	warn sprintf "loading %s (%d)\n",	1034	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1035	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1036	return ($data, $av);
825	}	1037	}
		1038
		1039	=head2 COMMAND CALLBACKS
		1040
		1041	=over 4
		1042
		1043	=cut
826		1044
827	#############################################################################	1045	#############################################################################
828	# command handling &c	1046	# command handling &c
829		1047
830	=item cf::register_command $name => \&callback($ob,$args);	1048	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1061	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1062	}
845		1063
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1064	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1065
848	Register a callbackf ro execution when the client sends an extcmd packet.	1066	Register a callback for execution when the client sends an (synchronous)
		1067	extcmd packet. Ext commands will be processed in the order they are
		1068	received by the server, like other user commands. The first argument is
		1069	the logged-in player. Ext commands can only be processed after a player
		1070	has logged in successfully.
849		1071
850	If the callback returns something, it is sent back as if reply was being	1072	If the callback returns something, it is sent back as if reply was being
851	called.	1073	called.
852		1074
		1075	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1076
		1077	Register a callback for execution when the client sends an (asynchronous)
		1078	exticmd packet. Exti commands are processed by the server as soon as they
		1079	are received, i.e. out of order w.r.t. other commands. The first argument
		1080	is a client socket. Exti commands can be received anytime, even before
		1081	log-in.
		1082
		1083	If the callback returns something, it is sent back as if reply was being
		1084	called.
		1085
853	=cut	1086	=cut
854		1087
855	sub register_extcmd {	1088	sub register_extcmd {
856	my ($name, $cb) = @_;	1089	my ($name, $cb) = @_;
857		1090
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	1091	$EXTCMD{$name} = $cb;
		1092	}
		1093
		1094	sub register_exticmd {
		1095	my ($name, $cb) = @_;
		1096
		1097	$EXTICMD{$name} = $cb;
862	}	1098	}
863		1099
864	cf::player->attach (	1100	cf::player->attach (
865	on_command => sub {	1101	on_command => sub {
866	my ($pl, $name, $params) = @_;	1102	my ($pl, $name, $params) = @_;
…		…
875	cf::override;	1111	cf::override;
876	},	1112	},
877	on_extcmd => sub {	1113	on_extcmd => sub {
878	my ($pl, $buf) = @_;	1114	my ($pl, $buf) = @_;
879		1115
880	my $msg = eval { from_json $buf };	1116	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
881		1117
882	if (ref $msg) {	1118	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1119	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	1120	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	1121	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	1122	}
887	}	1123	}
888	} else {	1124	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1125	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		1127
892	cf::override;	1128	cf::override;
893	},	1129	},
894	);	1130	);
895		1131
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	1132	sub load_extensions {
		1133	cf::sync_job {
		1134	my %todo;
		1135
		1136	for my $path (<$LIBDIR/*.ext>) {
		1137	next unless -r $path;
		1138
		1139	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1140	my $base = $1;
		1141	my $pkg = $1;
		1142	$pkg =~ s/[^[:word:]]/_/g;
		1143	$pkg = "ext::$pkg";
		1144
		1145	open my $fh, "<:utf8", $path
		1146	or die "$path: $!";
		1147
		1148	my $source = do { local $/; <$fh> };
		1149
		1150	my %ext = (
		1151	path => $path,
		1152	base => $base,
		1153	pkg => $pkg,
		1154	);
		1155
		1156	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1157	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1158
		1159	$ext{source} =
		1160	"package $pkg; use strict; use utf8;\n"
		1161	. "#line 1 \"$path\"\n{\n"
		1162	. $source
		1163	. "\n};\n1";
		1164
		1165	$todo{$base} = \%ext;
		1166	}
		1167
		1168	my %done;
		1169	while (%todo) {
		1170	my $progress;
		1171
		1172	while (my ($k, $v) = each %todo) {
		1173	for (split /,\s*/, $v->{meta}{depends}) {
		1174	goto skip
		1175	unless exists $done{$_};
		1176	}
		1177
		1178	warn "... loading '$k' into '$v->{pkg}'\n";
		1179
		1180	unless (eval $v->{source}) {
		1181	my $msg = $@ ? "$v->{path}: $@\n"
		1182	: "$v->{base}: extension inactive.\n";
		1183
		1184	if (exists $v->{meta}{mandatory}) {
		1185	warn $msg;
		1186	warn "mandatory extension failed to load, exiting.\n";
		1187	exit 1;
		1188	}
		1189
		1190	warn $msg;
		1191	}
		1192
		1193	$done{$k} = delete $todo{$k};
		1194	push @EXTS, $v->{pkg};
		1195	$progress = 1;
		1196	}
		1197
		1198	skip:
		1199	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1200	unless $progress;
		1201	}
		1202	};
		1203	}
		1204
		1205	#############################################################################
		1206
		1207	=back
		1208
		1209	=head2 CORE EXTENSIONS
		1210
		1211	Functions and methods that extend core crossfire objects.
		1212
		1213	=cut
		1214
		1215	package cf::player;
		1216
		1217	use Coro::AIO;
		1218
		1219	=head3 cf::player
		1220
		1221	=over 4
		1222
		1223	=item cf::player::find $login
		1224
		1225	Returns the given player object, loading it if necessary (might block).
		1226
		1227	=cut
		1228
		1229	sub playerdir($) {
		1230	"$PLAYERDIR/"
		1231	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1232	}
		1233
		1234	sub path($) {
		1235	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1236
		1237	(playerdir $login) . "/playerdata"
		1238	}
		1239
		1240	sub find_active($) {
		1241	$cf::PLAYER{$_[0]}
		1242	and $cf::PLAYER{$_[0]}->active
		1243	and $cf::PLAYER{$_[0]}
		1244	}
		1245
		1246	sub exists($) {
		1247	my ($login) = @_;
		1248
		1249	$cf::PLAYER{$login}
		1250	or cf::sync_job { !aio_stat path $login }
		1251	}
		1252
		1253	sub find($) {
		1254	return $cf::PLAYER{$_[0]} || do {
		1255	my $login = $_[0];
		1256
		1257	my $guard = cf::lock_acquire "user_find:$login";
		1258
		1259	$cf::PLAYER{$_[0]} || do {
		1260	# rename old playerfiles to new ones
		1261	#TODO: remove when no longer required
		1262	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1263	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1264	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1265	aio_unlink +(playerdir $login) . "/$login.pl";
		1266
		1267	my $pl = load_pl path $login
		1268	or return;
		1269	$cf::PLAYER{$login} = $pl
		1270	}
		1271	}
		1272	}
		1273
		1274	sub save($) {
		1275	my ($pl) = @_;
		1276
		1277	return if $pl->{deny_save};
		1278
		1279	my $path = path $pl;
		1280	my $guard = cf::lock_acquire "user_save:$path";
		1281
		1282	return if $pl->{deny_save};
		1283
		1284	aio_mkdir playerdir $pl, 0770;
		1285	$pl->{last_save} = $cf::RUNTIME;
		1286
		1287	$pl->save_pl ($path);
		1288	Coro::cede;
		1289	}
		1290
		1291	sub new($) {
		1292	my ($login) = @_;
		1293
		1294	my $self = create;
		1295
		1296	$self->ob->name ($login);
		1297	$self->{deny_save} = 1;
		1298
		1299	$cf::PLAYER{$login} = $self;
		1300
		1301	$self
		1302	}
		1303
		1304	=item $pl->quit_character
		1305
		1306	Nukes the player without looking back. If logged in, the connection will
		1307	be destroyed. May block for a long time.
		1308
		1309	=cut
		1310
		1311	sub quit_character {
		1312	my ($pl) = @_;
		1313
		1314	my $name = $pl->ob->name;
		1315
		1316	$pl->{deny_save} = 1;
		1317	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1318
		1319	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1320	$pl->deactivate;
		1321	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1322	$pl->ns->destroy if $pl->ns;
		1323
		1324	my $path = playerdir $pl;
		1325	my $temp = "$path~$cf::RUNTIME~deleting~";
		1326	aio_rename $path, $temp;
		1327	delete $cf::PLAYER{$pl->ob->name};
		1328	$pl->destroy;
		1329
		1330	my $prefix = qr<^~\Q$name\E/>;
		1331
		1332	# nuke player maps
		1333	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1334
		1335	IO::AIO::aio_rmtree $temp;
		1336	}
		1337
		1338	=item $pl->kick
		1339
		1340	Kicks a player out of the game. This destroys the connection.
		1341
		1342	=cut
		1343
		1344	sub kick {
		1345	my ($pl, $kicker) = @_;
		1346
		1347	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1348	$pl->killer ("kicked");
		1349	$pl->ns->destroy;
		1350	}
		1351
		1352	=item cf::player::list_logins
		1353
		1354	Returns am arrayref of all valid playernames in the system, can take a
		1355	while and may block, so not sync_job-capable, ever.
		1356
		1357	=cut
		1358
		1359	sub list_logins {
		1360	my $dirs = aio_readdir $PLAYERDIR
		1361	or return [];
		1362
		1363	my @logins;
		1364
		1365	for my $login (@$dirs) {
		1366	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1367	aio_read $fh, 0, 512, my $buf, 0 or next;
		1368	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1369
		1370	utf8::decode $login;
		1371	push @logins, $login;
		1372	}
		1373
		1374	\@logins
		1375	}
		1376
		1377	=item $player->maps
		1378
		1379	Returns an arrayref of map paths that are private for this
		1380	player. May block.
		1381
		1382	=cut
		1383
		1384	sub maps($) {
		1385	my ($pl) = @_;
		1386
		1387	$pl = ref $pl ? $pl->ob->name : $pl;
		1388
		1389	my $files = aio_readdir playerdir $pl
		1390	or return;
		1391
		1392	my @paths;
		1393
		1394	for (@$files) {
		1395	utf8::decode $_;
		1396	next if /\.(?:pl|pst)$/;
		1397	next unless /^$PATH_SEP/o;
		1398
		1399	push @paths, cf::map::normalise "~$pl/$_";
		1400	}
		1401
		1402	\@paths
		1403	}
		1404
		1405	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1406
		1407	Expand crossfire pod fragments into protocol xml.
		1408
		1409	=cut
		1410
		1411	sub expand_cfpod {
		1412	((my $self), (local $_)) = @_;
		1413
		1414	# escape & and <
		1415	s/&/&amp;/g;
		1416	s/(?<![BIUGH])</&lt;/g;
		1417
		1418	# this is buggy, it needs to properly take care of nested <'s
		1419
		1420	1 while
		1421	# replace B<>, I<>, U<> etc.
		1422	s/B<([^\>]*)>/<b>$1<\/b>/
		1423	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1424	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1425	# replace G<male|female> tags
		1426	|| s{G<([^>|]*)\|([^>]*)>}{
		1427	$self->gender ? $2 : $1
		1428	}ge
		1429	# replace H<hint text>
		1430	|| s{H<([^\>]*)>}
		1431	{
		1432	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1433	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1434	"")
		1435	[$self->{hintmode}]
		1436	}ge;
		1437
		1438	# create single paragraphs (very hackish)
		1439	s/(?<=\S)\n(?=\w)/ /g;
		1440
		1441	# compress some whitespace
		1442	s/\s+\n/\n/g; # ws line-ends
		1443	s/\n\n+/\n/g; # double lines
		1444	s/^\n+//; # beginning lines
		1445	s/\n+$//; # ending lines
		1446
		1447	$_
		1448	}
		1449
		1450	sub hintmode {
		1451	$_[0]{hintmode} = $_[1] if @_ > 1;
		1452	$_[0]{hintmode}
		1453	}
		1454
		1455	=item $player->ext_reply ($msgid, %msg)
		1456
		1457	Sends an ext reply to the player.
		1458
		1459	=cut
		1460
		1461	sub ext_reply($$%) {
		1462	my ($self, $id, %msg) = @_;
		1463
		1464	$msg{msgid} = $id;
		1465	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1466	}
		1467
		1468	=item $player->ext_event ($type, %msg)
		1469
		1470	Sends an ext event to the client.
		1471
		1472	=cut
		1473
		1474	sub ext_event($$%) {
		1475	my ($self, $type, %msg) = @_;
		1476
		1477	$self->ns->ext_event ($type, %msg);
		1478	}
		1479
		1480	=head3 cf::region
		1481
		1482	=over 4
		1483
		1484	=cut
		1485
		1486	package cf::region;
		1487
		1488	=item cf::region::find_by_path $path
		1489
		1490	Tries to decuce the likely region for a map knowing only its path.
		1491
		1492	=cut
		1493
		1494	sub find_by_path($) {
903	my ($path) = @_;	1495	my ($path) = @_;
904		1496
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1497	my ($match, $specificity);
906	my $base = $1;
907	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";
910		1498
911	warn "loading '$path' into '$pkg'\n";	1499	for my $region (list) {
912		1500	if ($region->{match} && $path =~ $region->{match}) {
913	open my $fh, "<:utf8", $path	1501	($match, $specificity) = ($region, $region->specificity)
914	or die "$path: $!";	1502	if $region->specificity > $specificity;
915		1503	}
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	# }	1504	}
945		1505
946	# remove commands	1506	$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	}	1507	}
1052		1508
1053	=back	1509	=back
1054
1055		1510
1056	=head3 cf::map	1511	=head3 cf::map
1057		1512
1058	=over 4	1513	=over 4
1059		1514
…		…
1062	package cf::map;	1517	package cf::map;
1063		1518
1064	use Fcntl;	1519	use Fcntl;
1065	use Coro::AIO;	1520	use Coro::AIO;
1066		1521
		1522	use overload
		1523	'""' => \&as_string,
		1524	fallback => 1;
		1525
1067	our $MAX_RESET = 7200;	1526	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1527	our $DEFAULT_RESET = 3000;
1069		1528
1070	sub generate_random_map {	1529	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1530	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1531	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1532	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1533	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1534	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1535	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1536	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1537	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1538	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1539	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1540	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1541	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1542	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1543	(cf::region::find $rmp->{region}), $rmp->{custom}
		1544	)
		1545	}
		1546
		1547	=item cf::map->register ($regex, $prio)
		1548
		1549	Register a handler for the map path matching the given regex at the
		1550	givne priority (higher is better, built-in handlers have priority 0, the
		1551	default).
		1552
		1553	=cut
		1554
		1555	sub register {
		1556	my (undef, $regex, $prio) = @_;
		1557	my $pkg = caller;
		1558
		1559	no strict;
		1560	push @{"$pkg\::ISA"}, __PACKAGE__;
		1561
		1562	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1563	}
		1564
		1565	# also paths starting with '/'
		1566	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1567
		1568	sub thawer_merge {
		1569	my ($self, $merge) = @_;
		1570
		1571	# we have to keep some variables in memory intact
		1572	local $self->{path};
		1573	local $self->{load_path};
		1574
		1575	$self->SUPER::thawer_merge ($merge);
		1576	}
		1577
		1578	sub normalise {
		1579	my ($path, $base) = @_;
		1580
		1581	$path = "$path"; # make sure its a string
		1582
		1583	$path =~ s/\.map$//;
		1584
		1585	# map plan:
		1586	#
		1587	# /! non-realised random map exit (special hack!)
		1588	# {... are special paths that are not being touched
		1589	# ?xxx/... are special absolute paths
		1590	# ?random/... random maps
		1591	# /... normal maps
		1592	# ~user/... per-player map of a specific user
		1593
		1594	$path =~ s/$PATH_SEP/\//go;
		1595
		1596	# treat it as relative path if it starts with
		1597	# something that looks reasonable
		1598	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1599	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1600
		1601	$base =~ s{[^/]+/?$}{};
		1602	$path = "$base/$path";
		1603	}
		1604
		1605	for ($path) {
		1606	redo if s{//}{/};
		1607	redo if s{/\.?/}{/};
		1608	redo if s{/[^/]+/\.\./}{/};
		1609	}
		1610
		1611	$path
		1612	}
		1613
		1614	sub new_from_path {
		1615	my (undef, $path, $base) = @_;
		1616
		1617	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1618
		1619	$path = normalise $path, $base;
		1620
		1621	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1622	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1623	my $self = bless cf::map::new, $pkg;
		1624	$self->{path} = $path; $self->path ($path);
		1625	$self->init; # pass $1 etc.
		1626	return $self;
		1627	}
		1628	}
		1629
		1630	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1631	()
		1632	}
		1633
		1634	sub init {
		1635	my ($self) = @_;
		1636
		1637	$self
		1638	}
		1639
		1640	sub as_string {
		1641	my ($self) = @_;
		1642
		1643	"$self->{path}"
		1644	}
		1645
		1646	# the displayed name, this is a one way mapping
		1647	sub visible_name {
		1648	&as_string
		1649	}
		1650
		1651	# the original (read-only) location
		1652	sub load_path {
		1653	my ($self) = @_;
		1654
		1655	"$MAPDIR/$self->{path}.map"
		1656	}
		1657
		1658	# the temporary/swap location
		1659	sub save_path {
		1660	my ($self) = @_;
		1661
		1662	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1663	"$TMPDIR/$path.map"
		1664	}
		1665
		1666	# the unique path, undef == no special unique path
		1667	sub uniq_path {
		1668	my ($self) = @_;
		1669
		1670	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1671	"$UNIQUEDIR/$path"
1087	}	1672	}
1088		1673
1089	# and all this just because we cannot iterate over	1674	# and all this just because we cannot iterate over
1090	# all maps in C++...	1675	# all maps in C++...
1091	sub change_all_map_light {	1676	sub change_all_map_light {
1092	my ($change) = @_;	1677	my ($change) = @_;
1093		1678
1094	$_->change_map_light ($change) for values %cf::MAP;	1679	$_->change_map_light ($change)
		1680	for grep $_->outdoor, values %cf::MAP;
1095	}	1681	}
1096		1682
		1683	sub decay_objects {
		1684	my ($self) = @_;
		1685
		1686	return if $self->{deny_reset};
		1687
		1688	$self->do_decay_objects;
		1689	}
		1690
		1691	sub unlink_save {
		1692	my ($self) = @_;
		1693
		1694	utf8::encode (my $save = $self->save_path);
		1695	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1696	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1697	}
		1698
1097	sub try_load_header($) {	1699	sub load_header_from($) {
1098	my ($path) = @_;	1700	my ($self, $path) = @_;
1099		1701
1100	utf8::encode $path;	1702	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1703	#aio_open $path, O_RDONLY, 0
		1704	# or return;
		1705
		1706	$self->_load_header ($path)
1102	or return;	1707	or return;
1103		1708
1104	my $map = cf::map::new	1709	$self->{load_path} = $path;
		1710
		1711	1
		1712	}
		1713
		1714	sub load_header_orig {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->load_path)
		1718	}
		1719
		1720	sub load_header_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->load_header_from ($self->save_path)
		1724	}
		1725
		1726	sub prepare_temp {
		1727	my ($self) = @_;
		1728
		1729	$self->last_access ((delete $self->{last_access})
		1730	|| $cf::RUNTIME); #d#
		1731	# safety
		1732	$self->{instantiate_time} = $cf::RUNTIME
		1733	if $self->{instantiate_time} > $cf::RUNTIME;
		1734	}
		1735
		1736	sub prepare_orig {
		1737	my ($self) = @_;
		1738
		1739	$self->{load_original} = 1;
		1740	$self->{instantiate_time} = $cf::RUNTIME;
		1741	$self->last_access ($cf::RUNTIME);
		1742	$self->instantiate;
		1743	}
		1744
		1745	sub load_header {
		1746	my ($self) = @_;
		1747
		1748	if ($self->load_header_temp) {
		1749	$self->prepare_temp;
		1750	} else {
		1751	$self->load_header_orig
1105	or return;	1752	or return;
		1753	$self->prepare_orig;
		1754	}
1106		1755
1107	$map->load_header ($path)	1756	$self->{deny_reset} = 1
1108	or return;	1757	if $self->no_reset;
1109		1758
1110	$map->{load_path} = $path;	1759	$self->default_region (cf::region::find_by_path $self->{path})
		1760	unless $self->default_region;
1111		1761
1112	$map	1762	1
1113	}	1763	}
1114		1764
		1765	sub find;
1115	sub find_map {	1766	sub find {
1116	my ($path, $origin) = @_;	1767	my ($path, $origin) = @_;
1117		1768
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1769	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1770
		1771	cf::lock_wait "map_find:$path";
		1772
1123	$cf::MAP{$key} || do {	1773	$cf::MAP{$path} || do {
1124	# do it the slow way	1774	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1775	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;	1776	or return;
1139		1777
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;	1778	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1779
1154	if ($map->should_reset) {	1780	$map->load_header
		1781	or return;
		1782
		1783	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1784	# doing this can freeze the server in a sync job, obviously
		1785	#$cf::WAIT_FOR_TICK->wait;
1155	$map->reset;	1786	$map->reset;
1156	$map = find_map $path;	1787	undef $guard;
		1788	return find $path;
1157	}	1789	}
1158		1790
1159	$cf::MAP{$key} = $map	1791	$cf::MAP{$path} = $map
1160	}	1792	}
1161	}	1793	}
		1794
		1795	sub pre_load { }
		1796	sub post_load { }
1162		1797
1163	sub load {	1798	sub load {
1164	my ($self) = @_;	1799	my ($self) = @_;
1165		1800
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1801	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1802
1170	my $path = $self->{path};	1803	my $path = $self->{path};
1171		1804
		1805	{
		1806	my $guard = cf::lock_acquire "map_load:$path";
		1807
		1808	return if $self->in_memory != cf::MAP_SWAPPED;
		1809
		1810	$self->in_memory (cf::MAP_LOADING);
		1811
1172	$self->alloc;	1812	$self->alloc;
		1813
		1814	$self->pre_load;
		1815	Coro::cede;
		1816
1173	$self->load_objects ($self->{load_path}, 1)	1817	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1818	or return;
1175		1819
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1820	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1821	if delete $self->{load_original};
1178		1822
1179	if (my $uniq = $path->uniq_path) {	1823	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1824	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1825	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1826	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1827	$self->_load_objects ($uniq, 0);
1184	}	1828	}
1185	}	1829	}
1186		1830
		1831	Coro::cede;
1187	# now do the right thing for maps	1832	# now do the right thing for maps
1188	$self->link_multipart_objects;	1833	$self->link_multipart_objects;
1189
1190	if ($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)	1834	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1835	unless $self->difficulty;
		1836	Coro::cede;
		1837
		1838	unless ($self->{deny_activate}) {
		1839	$self->decay_objects;
		1840	$self->fix_auto_apply;
		1841	$self->update_buttons;
		1842	Coro::cede;
		1843	$self->set_darkness_map;
		1844	Coro::cede;
1200	$self->activate;	1845	$self->activate;
1201	}	1846	}
1202		1847
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1848	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1849	}
1205		1850
1206	sub load_map_sync {	1851	$self->post_load;
		1852	}
		1853
		1854	sub customise_for {
		1855	my ($self, $ob) = @_;
		1856
		1857	return find "~" . $ob->name . "/" . $self->{path}
		1858	if $self->per_player;
		1859
		1860	# return find "?party/" . $ob->name . "/" . $self->{path}
		1861	# if $self->per_party;
		1862
		1863	$self
		1864	}
		1865
		1866	# find and load all maps in the 3x3 area around a map
		1867	sub load_diag {
		1868	my ($map) = @_;
		1869
		1870	my @diag; # diagonal neighbours
		1871
		1872	for (0 .. 3) {
		1873	my $neigh = $map->tile_path ($_)
		1874	or next;
		1875	$neigh = find $neigh, $map
		1876	or next;
		1877	$neigh->load;
		1878
		1879	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1880	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1881	}
		1882
		1883	for (@diag) {
		1884	my $neigh = find @$_
		1885	or next;
		1886	$neigh->load;
		1887	}
		1888	}
		1889
		1890	sub find_sync {
1207	my ($path, $origin) = @_;	1891	my ($path, $origin) = @_;
1208		1892
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1893	cf::sync_job { find $path, $origin }
		1894	}
1210		1895
1211	cf::sync_job {	1896	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1897	my ($map) = @_;
1213	or return;	1898
		1899	cf::sync_job { $map->load };
		1900	}
		1901
		1902	our %MAP_PREFETCH;
		1903	our $MAP_PREFETCHER = undef;
		1904
		1905	sub find_async {
		1906	my ($path, $origin) = @_;
		1907
		1908	$path = normalise $path, $origin && $origin->{path};
		1909
		1910	if (my $map = $cf::MAP{$path}) {
		1911	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1912	}
		1913
		1914	undef $MAP_PREFETCH{$path};
		1915	$MAP_PREFETCHER ||= cf::async {
		1916	while (%MAP_PREFETCH) {
		1917	for my $path (keys %MAP_PREFETCH) {
		1918	if (my $map = find $path) {
1214	$map->load;	1919	$map->load;
1215	$map	1920	}
		1921
		1922	delete $MAP_PREFETCH{$path};
		1923	}
		1924	}
		1925	undef $MAP_PREFETCHER;
1216	}	1926	};
		1927	$MAP_PREFETCHER->prio (6);
		1928
		1929	()
1217	}	1930	}
1218		1931
1219	sub save {	1932	sub save {
1220	my ($self) = @_;	1933	my ($self) = @_;
1221		1934
		1935	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1936
1222	$self->{last_save} = $cf::RUNTIME;	1937	$self->{last_save} = $cf::RUNTIME;
1223		1938
1224	return unless $self->dirty;	1939	return unless $self->dirty;
1225		1940
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1941	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1942	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1943
1229	$self->{load_path} = $save;	1944	$self->{load_path} = $save;
1230		1945
1231	return if $self->{deny_save};	1946	return if $self->{deny_save};
1232		1947
		1948	local $self->{last_access} = $self->last_access;#d#
		1949
		1950	cf::async {
		1951	$_->contr->save for $self->players;
		1952	};
		1953
1233	if ($uniq) {	1954	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1955	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1956	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1957	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1958	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1959	}
1239	}	1960	}
1240		1961
1241	sub swap_out {	1962	sub swap_out {
1242	my ($self) = @_;	1963	my ($self) = @_;
		1964
		1965	# save first because save cedes
		1966	$self->save;
		1967
		1968	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1969
1244	return if $self->players;	1970	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1971	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1972	return if $self->{deny_save};
1247		1973
1248	$self->save;
1249	$self->clear;	1974	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1975	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1976	}
1252		1977
1253	sub reset_at {	1978	sub reset_at {
1254	my ($self) = @_;	1979	my ($self) = @_;
1255		1980
1256	# TODO: safety, remove and allow resettable per-player maps	1981	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};
1258	return 1e99 if $self->{deny_reset};	1982	return 1e99 if $self->{deny_reset};
1259		1983
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1984	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1985	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1986
…		…
1267	my ($self) = @_;	1991	my ($self) = @_;
1268		1992
1269	$self->reset_at <= $cf::RUNTIME	1993	$self->reset_at <= $cf::RUNTIME
1270	}	1994	}
1271		1995
1272	sub unlink_save {
1273	my ($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	$self->save;
1291	}
1292
1293	sub reset {	1996	sub reset {
1294	my ($self) = @_;	1997	my ($self) = @_;
1295		1998
		1999	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2000
1296	return if $self->players;	2001	return if $self->players;
1297	return if $self->{path}{user_rel};#d#
1298		2002
1299	warn "resetting map ", $self->path;#d#	2003	warn "resetting map ", $self->path;
		2004
		2005	$self->in_memory (cf::MAP_SWAPPED);
		2006
		2007	# need to save uniques path
		2008	unless ($self->{deny_save}) {
		2009	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2010
		2011	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2012	if $uniq;
		2013	}
1300		2014
1301	delete $cf::MAP{$self->path};	2015	delete $cf::MAP{$self->path};
		2016
		2017	$self->clear;
1302		2018
1303	$_->clear_links_to ($self) for values %cf::MAP;	2019	$_->clear_links_to ($self) for values %cf::MAP;
1304		2020
1305	$self->unlink_save;	2021	$self->unlink_save;
1306	$self->destroy;	2022	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	2025	my $nuke_counter = "aaaa";
1310		2026
1311	sub nuke {	2027	sub nuke {
1312	my ($self) = @_;	2028	my ($self) = @_;
1313		2029
		2030	delete $cf::MAP{$self->path};
		2031
		2032	$self->unlink_save;
		2033
		2034	bless $self, "cf::map";
		2035	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	2036	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	2037	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	2038	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2039
		2040	$cf::MAP{$self->path} = $self;
		2041
1317	$self->reset; # polite request, might not happen	2042	$self->reset; # polite request, might not happen
1318	}	2043	}
1319		2044
1320	sub customise_for {	2045	=item $maps = cf::map::tmp_maps
1321	my ($map, $ob) = @_;
1322		2046
1323	if ($map->per_player) {	2047	Returns an arrayref with all map paths of currently instantiated and saved
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2048	maps. May block.
		2049
		2050	=cut
		2051
		2052	sub tmp_maps() {
1325	}	2053	[
1326		2054	map {
1327	$map	2055	utf8::decode $_;
		2056	/\.map$/
		2057	? normalise $_
		2058	: ()
		2059	} @{ aio_readdir $TMPDIR or [] }
		2060	]
1328	}	2061	}
1329		2062
1330	sub emergency_save {	2063	=item $maps = cf::map::random_maps
1331	local $cf::FREEZE = 1;
1332		2064
1333	warn "enter emergency map save\n";	2065	Returns an arrayref with all map paths of currently instantiated and saved
		2066	random maps. May block.
1334		2067
1335	cf::sync_job {	2068	=cut
1336	warn "begin emergency map save\n";
1337	$_->save for values %cf::MAP;
1338	};
1339		2069
1340	warn "end emergency map save\n";	2070	sub random_maps() {
		2071	[
		2072	map {
		2073	utf8::decode $_;
		2074	/\.map$/
		2075	? normalise "?random/$_"
		2076	: ()
		2077	} @{ aio_readdir $RANDOMDIR or [] }
		2078	]
		2079	}
		2080
		2081	=item cf::map::unique_maps
		2082
		2083	Returns an arrayref of paths of all shared maps that have
		2084	instantiated unique items. May block.
		2085
		2086	=cut
		2087
		2088	sub unique_maps() {
		2089	[
		2090	map {
		2091	utf8::decode $_;
		2092	/\.map$/
		2093	? normalise $_
		2094	: ()
		2095	} @{ aio_readdir $UNIQUEDIR or [] }
		2096	]
1341	}	2097	}
1342		2098
1343	package cf;	2099	package cf;
1344		2100
1345	=back	2101	=back
1346		2102
		2103	=head3 cf::object
		2104
		2105	=cut
		2106
		2107	package cf::object;
		2108
		2109	=over 4
		2110
		2111	=item $ob->inv_recursive
		2112
		2113	Returns the inventory of the object _and_ their inventories, recursively.
		2114
		2115	=cut
		2116
		2117	sub inv_recursive_;
		2118	sub inv_recursive_ {
		2119	map { $_, inv_recursive_ $_->inv } @_
		2120	}
		2121
		2122	sub inv_recursive {
		2123	inv_recursive_ inv $_[0]
		2124	}
		2125
		2126	package cf;
		2127
		2128	=back
1347		2129
1348	=head3 cf::object::player	2130	=head3 cf::object::player
1349		2131
1350	=over 4	2132	=over 4
1351		2133
…		…
1365		2147
1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2148	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1367		2149
1368	if ($self->{record_replies}) {	2150	if ($self->{record_replies}) {
1369	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2151	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2152
1370	} else {	2153	} else {
		2154	my $pl = $self->contr;
		2155
		2156	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2157	my $diag = $pl->{npc_dialog};
		2158	$diag->{pl}->ext_reply (
		2159	$diag->{id},
		2160	msgtype => "reply",
		2161	msg => $diag->{pl}->expand_cfpod ($msg),
		2162	add_topics => []
		2163	);
		2164
		2165	} else {
1371	$msg = $npc->name . " says: $msg" if $npc;	2166	$msg = $npc->name . " says: $msg" if $npc;
1372	$self->message ($msg, $flags);	2167	$self->message ($msg, $flags);
		2168	}
1373	}	2169	}
1374	}	2170	}
1375		2171
1376	=item $player_object->may ("access")	2172	=item $player_object->may ("access")
1377		2173
…		…
1391		2187
1392	=item $player_object->enter_link	2188	=item $player_object->enter_link
1393		2189
1394	Freezes the player and moves him/her to a special map (C<{link}>).	2190	Freezes the player and moves him/her to a special map (C<{link}>).
1395		2191
1396	The player should be reaosnably safe there for short amounts of time. You	2192	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.	2193	I<MUST> call C<leave_link> as soon as possible, though.
1398		2194
		2195	Will never block.
		2196
1399	=item $player_object->leave_link ($map, $x, $y)	2197	=item $player_object->leave_link ($map, $x, $y)
1400		2198
1401	Moves the player out of the specila link map onto the given map. If the	2199	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	2200	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	2201	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	2202	fails, to the emergency map position.
1405		2203
1406	Might block.	2204	Might block.
1407		2205
1408	=cut	2206	=cut
		2207
		2208	sub link_map {
		2209	unless ($LINK_MAP) {
		2210	$LINK_MAP = cf::map::find "{link}"
		2211	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2212	$LINK_MAP->load;
		2213	}
		2214
		2215	$LINK_MAP
		2216	}
1409		2217
1410	sub cf::object::player::enter_link {	2218	sub cf::object::player::enter_link {
1411	my ($self) = @_;	2219	my ($self) = @_;
1412		2220
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;	2221	$self->deactivate_recursive;
		2222
		2223	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2224
		2225	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2226	if $self->map && $self->map->{path} ne "{link}";
		2227
		2228	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1420	}	2229	}
1421		2230
1422	sub cf::object::player::leave_link {	2231	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	2232	my ($self, $map, $x, $y) = @_;
		2233
		2234	return unless $self->contr->active;
1424		2235
1425	my $link_pos = delete $self->{_link_pos};	2236	my $link_pos = delete $self->{_link_pos};
1426		2237
1427	unless ($map) {	2238	unless ($map) {
1428	# restore original map position	2239	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	2240	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	2241	$map = cf::map::find $map;
1431		2242
1432	unless ($map) {	2243	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	2244	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	2245	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	2246	or die "FATAL: cannot load emergency map\n";
1436	}	2247	}
1437	}	2248	}
1438		2249
1439	($x, $y) = (-1, -1)	2250	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	2253	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	2254	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	2255	if $x <=0 && $y <= 0;
1445		2256
1446	$map->load;	2257	$map->load;
		2258	$map->load_diag;
1447		2259
		2260	return unless $self->contr->active;
1448	$self->activate_recursive;	2261	$self->activate_recursive;
		2262
		2263	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	2264	$self->enter_map ($map, $x, $y);
1450	}	2265	}
1451		2266
1452	=item $player_object->goto_map ($path, $x, $y)	2267	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1453		2268
1454	=cut	2269	Moves the player to the given map-path and coordinates by first freezing
		2270	her, loading and preparing them map, calling the provided $check callback
		2271	that has to return the map if sucecssful, and then unfreezes the player on
		2272	the new (success) or old (failed) map position. In either case, $done will
		2273	be called at the end of this process.
1455		2274
		2275	=cut
		2276
		2277	our $GOTOGEN;
		2278
1456	sub cf::object::player::goto_map {	2279	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	2280	my ($self, $path, $x, $y, $check, $done) = @_;
		2281
		2282	# do generation counting so two concurrent goto's will be executed in-order
		2283	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1458		2284
1459	$self->enter_link;	2285	$self->enter_link;
1460		2286
1461	(Coro::async {	2287	(async {
1462	$path = new cf::path $path;	2288	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	2289	my $map = cf::map::find $path;
		2290
		2291	if ($map) {
1465	$map = $map->customise_for ($self) if $map;	2292	$map = $map->customise_for ($self);
1466		2293	$map = $check->($map) if $check && $map;
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	2294	} else {
1468	# if $map;
1469
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2295	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	}
1471		2297
		2298	$map
		2299	};
		2300
		2301	if ($@) {
		2302	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2303	LOG llevError | logBacktrace, Carp::longmess $@;
		2304	}
		2305
		2306	if ($gen == $self->{_goto_generation}) {
		2307	delete $self->{_goto_generation};
1472	$self->leave_link ($map, $x, $y);	2308	$self->leave_link ($map, $x, $y);
		2309	}
		2310
		2311	$done->() if $done;
1473	})->prio (1);	2312	})->prio (1);
1474	}	2313	}
1475		2314
1476	=item $player_object->enter_exit ($exit_object)	2315	=item $player_object->enter_exit ($exit_object)
1477		2316
…		…
1479		2318
1480	sub parse_random_map_params {	2319	sub parse_random_map_params {
1481	my ($spec) = @_;	2320	my ($spec) = @_;
1482		2321
1483	my $rmp = { # defaults	2322	my $rmp = { # defaults
1484	xsize => 10,	2323	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2324	ysize => (cf::rndm 15, 40),
		2325	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2326	#layout => string,
1486	};	2327	};
1487		2328
1488	for (split /\n/, $spec) {	2329	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2330	my ($k, $v) = split /\s+/, $_, 2;
1490		2331
…		…
1494	$rmp	2335	$rmp
1495	}	2336	}
1496		2337
1497	sub prepare_random_map {	2338	sub prepare_random_map {
1498	my ($exit) = @_;	2339	my ($exit) = @_;
		2340
		2341	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2342
1500	# all this does is basically replace the /! path by	2343	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2344	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2345	# that depends on the exit object
1503		2346
1504	my $rmp = parse_random_map_params $exit->msg;	2347	my $rmp = parse_random_map_params $exit->msg;
1505		2348
1506	if ($exit->map) {	2349	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2350	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2351	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2352	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2353	$rmp->{origin_y} = $exit->y;
1511	}	2354	}
1512		2355
1513	$rmp->{random_seed} ||= $exit->random_seed;	2356	$rmp->{random_seed} ||= $exit->random_seed;
1514		2357
1515	my $data = cf::to_json $rmp;	2358	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2359	my $md5 = Digest::MD5::md5_hex $data;
		2360	my $meta = "$RANDOMDIR/$md5.meta";
1517		2361
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2362	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2363	aio_write $fh, 0, (length $data), $data, 0;
		2364	undef $fh;
		2365	aio_rename "$meta~", $meta;
1520		2366
1521	$exit->slaying ("?random/$md5");	2367	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2368	$exit->msg (undef);
1523	}	2369	}
1524	}	2370	}
…		…
1526	sub cf::object::player::enter_exit {	2372	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2373	my ($self, $exit) = @_;
1528		2374
1529	return unless $self->type == cf::PLAYER;	2375	return unless $self->type == cf::PLAYER;
1530		2376
		2377	if ($exit->slaying eq "/!") {
		2378	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2379	# the problem is that $exit might not survive long enough
		2380	# so it needs to be done right now, right here
		2381	cf::sync_job { prepare_random_map $exit };
		2382	}
		2383
		2384	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2385	my $hp = $exit->stats->hp;
		2386	my $sp = $exit->stats->sp;
		2387
1531	$self->enter_link;	2388	$self->enter_link;
1532		2389
		2390	# if exit is damned, update players death & WoR home-position
		2391	$self->contr->savebed ($slaying, $hp, $sp)
		2392	if $exit->flag (FLAG_DAMNED);
		2393
1533	(Coro::async {	2394	(async {
		2395	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2396	unless (eval {
1535		2397	$self->goto ($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		2398
1542	1;	2399	1;
1543	}) {	2400	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2401	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	2402	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2403	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2404	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2405
1549	warn "ERROR in enter_exit: $@";	2406	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2407	$self->leave_link;
1551	}	2408	}
1552	})->prio (1);	2409	})->prio (1);
…		…
1565		2422
1566	sub cf::client::send_drawinfo {	2423	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2424	my ($self, $text, $flags) = @_;
1568		2425
1569	utf8::encode $text;	2426	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2427	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2428	}
1572		2429
		2430	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2431
		2432	Send a drawinfo or msg packet to the client, formatting the msg for the
		2433	client if neccessary. C<$type> should be a string identifying the type of
		2434	the message, with C<log> being the default. If C<$color> is negative, suppress
		2435	the message unless the client supports the msg packet.
		2436
		2437	=cut
		2438
		2439	sub cf::client::send_msg {
		2440	my ($self, $channel, $msg, $color, @extra) = @_;
		2441
		2442	$msg = $self->pl->expand_cfpod ($msg);
		2443
		2444	return unless @extra || length $msg;
		2445
		2446	$color &= ~cf::NDI_UNIQUE; # just in case...
		2447
		2448	if (ref $channel) {
		2449	# send meta info to client, if not yet sent
		2450	unless (exists $self->{channel}{$channel->{id}}) {
		2451	$self->{channel}{$channel->{id}} = $channel;
		2452	$self->ext_event (channel_info => %$channel);
		2453	}
		2454
		2455	$channel = $channel->{id};
		2456	}
		2457
		2458	if ($self->can_msg) {
		2459	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2460	} else {
		2461	# replace some tags by gcfclient-compatible ones
		2462	for ($msg) {
		2463	1 while
		2464	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2465	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2466	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2467	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2468	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2469	}
		2470
		2471	if ($color >= 0) {
		2472	if (0 && $msg =~ /\[/) {
		2473	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2474	} else {
		2475	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2476	$self->send_packet ("drawinfo $color $msg")
		2477	}
		2478	}
		2479	}
		2480	}
		2481
		2482	=item $client->ext_event ($type, %msg)
		2483
		2484	Sends an ext event to the client.
		2485
		2486	=cut
		2487
		2488	sub cf::client::ext_event($$%) {
		2489	my ($self, $type, %msg) = @_;
		2490
		2491	return unless $self->extcmd;
		2492
		2493	$msg{msgtype} = "event_$type";
		2494	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2495	}
1573		2496
1574	=item $success = $client->query ($flags, "text", \&cb)	2497	=item $success = $client->query ($flags, "text", \&cb)
1575		2498
1576	Queues a query to the client, calling the given callback with	2499	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>,	2500	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>.	2501	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1579		2502
1580	Queries can fail, so check the return code. Or don't, as queries will become	2503	Queries can fail, so check the return code. Or don't, as queries will
1581	reliable at some point in the future.	2504	become reliable at some point in the future.
1582		2505
1583	=cut	2506	=cut
1584		2507
1585	sub cf::client::query {	2508	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	2509	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	2517	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2518	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		2519
1597	$self->send_packet ($self->{query_queue}[0][0])	2520	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	2521	if @{ $self->{query_queue} } == 1;
		2522
		2523	1
1599	}	2524	}
1600		2525
1601	cf::client->attach (	2526	cf::client->attach (
		2527	on_connect => sub {
		2528	my ($ns) = @_;
		2529
		2530	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2531	},
1602	on_reply => sub {	2532	on_reply => sub {
1603	my ($ns, $msg) = @_;	2533	my ($ns, $msg) = @_;
1604		2534
1605	# this weird shuffling is so that direct followup queries	2535	# this weird shuffling is so that direct followup queries
1606	# get handled first	2536	# get handled first
1607	my $queue = delete $ns->{query_queue};	2537	my $queue = delete $ns->{query_queue}
		2538	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2539
1609	(shift @$queue)->[1]->($msg);	2540	(shift @$queue)->[1]->($msg);
		2541	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2542
1611	push @{ $ns->{query_queue} }, @$queue;	2543	push @{ $ns->{query_queue} }, @$queue;
1612		2544
1613	if (@{ $ns->{query_queue} } == @$queue) {	2545	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2546	if (@$queue) {
…		…
1616	} else {	2548	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2549	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	2550	}
1619	}	2551	}
1620	},	2552	},
		2553	on_exticmd => sub {
		2554	my ($ns, $buf) = @_;
		2555
		2556	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2557
		2558	if (ref $msg) {
		2559	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2560	if (my %reply = $cb->($ns, $msg)) {
		2561	$reply{msgid} = $msg->{msgid};
		2562	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2563	}
		2564	}
		2565	} else {
		2566	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2567	}
		2568
		2569	cf::override;
		2570	},
1621	);	2571	);
1622		2572
1623	=item $client->coro (\&cb)	2573	=item $client->async (\&cb)
1624		2574
1625	Create a new coroutine, running the specified callback. The coroutine will	2575	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2576	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2577	or loss of connection).
1628		2578
1629	=cut	2579	=cut
1630		2580
1631	sub cf::client::coro {	2581	sub cf::client::async {
1632	my ($self, $cb) = @_;	2582	my ($self, $cb) = @_;
1633		2583
1634	my $coro; $coro = async {	2584	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2585
1641	$coro->on_destroy (sub {	2586	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2587	delete $self->{_coro}{$coro+0};
1643	});	2588	});
1644		2589
…		…
1677		2622
1678	# here we export the classes and methods available to script code	2623	# here we export the classes and methods available to script code
1679		2624
1680	=pod	2625	=pod
1681		2626
1682	The following fucntions and emthods are available within a safe environment:	2627	The following functions and methods are available within a safe environment:
1683		2628
1684	cf::object contr pay_amount pay_player map	2629	cf::object
		2630	contr pay_amount pay_player map x y force_find force_add
		2631	insert remove
		2632
1685	cf::object::player player	2633	cf::object::player
1686	cf::player peaceful	2634	player
1687	cf::map trigger	2635
		2636	cf::player
		2637	peaceful
		2638
		2639	cf::map
		2640	trigger
1688		2641
1689	=cut	2642	=cut
1690		2643
1691	for (	2644	for (
1692	["cf::object" => qw(contr pay_amount pay_player map)],	2645	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2646	insert remove)],
1693	["cf::object::player" => qw(player)],	2647	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	2648	["cf::player" => qw(peaceful)],
1695	["cf::map" => qw(trigger)],	2649	["cf::map" => qw(trigger)],
1696	) {	2650	) {
1697	no strict 'refs';	2651	no strict 'refs';
…		…
1768	=back	2722	=back
1769		2723
1770	=cut	2724	=cut
1771		2725
1772	#############################################################################	2726	#############################################################################
		2727	# the server's init and main functions
1773		2728
1774	=head2 EXTENSION DATABASE SUPPORT	2729	sub load_facedata($) {
		2730	my ($path) = @_;
1775		2731
1776	Crossfire maintains a very simple database for extension use. It can	2732	warn "loading facedata from $path\n";
1777	currently store anything that can be serialised using Storable, which
1778	excludes objects.
1779		2733
1780	The parameter C<$family> should best start with the name of the extension	2734	my $facedata;
1781	using it, it should be unique.	2735	0 < aio_load $path, $facedata
		2736	or die "$path: $!";
1782		2737
1783	=over 4	2738	$facedata = Coro::Storable::thaw $facedata;
1784		2739
1785	=item $hashref = cf::db_get $family	2740	$facedata->{version} == 2
		2741	or cf::cleanup "$path: version mismatch, cannot proceed.";
1786		2742
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	}	2743	{
		2744	my $faces = $facedata->{faceinfo};
1824		2745
1825	my $pid;	2746	while (my ($face, $info) = each %$faces) {
		2747	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2748	cf::face::set_visibility $idx, $info->{visibility};
		2749	cf::face::set_magicmap $idx, $info->{magicmap};
		2750	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2751	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1826		2752
1827	sub db_save() {	2753	cf::cede_to_tick;
1828	warn "saving database $path\n";#d# remove later
1829	waitpid $pid, 0 if $pid;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});
1848
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}
1853
1854	sub db_get($;$) {
1855	@_ >= 2
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859
1860	sub db_put($$;$) {
1861	if (@_ >= 3) {
1862	$DB->{$_[0]}{$_[1]} = $_[2];
1863	} else {
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868
1869	cf::global->attach (
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	2754	}
1874	);
1875	}
1876		2755
1877	#############################################################################	2756	while (my ($face, $info) = each %$faces) {
1878	# the server's main()	2757	next unless $info->{smooth};
		2758	my $idx = cf::face::find $face
		2759	or next;
		2760	if (my $smooth = cf::face::find $info->{smooth}) {
		2761	cf::face::set_smooth $idx, $smooth;
		2762	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2763	} else {
		2764	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2765	}
		2766
		2767	cf::cede_to_tick;
		2768	}
		2769	}
		2770
		2771	{
		2772	my $anims = $facedata->{animinfo};
		2773
		2774	while (my ($anim, $info) = each %$anims) {
		2775	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2776	cf::cede_to_tick;
		2777	}
		2778
		2779	cf::anim::invalidate_all; # d'oh
		2780	}
		2781
		2782	{
		2783	# TODO: for gcfclient pleasure, we should give resources
		2784	# that gcfclient doesn't grok a >10000 face index.
		2785	my $res = $facedata->{resource};
		2786	my $enc = JSON::XS->new->utf8->canonical;
		2787
		2788	while (my ($name, $info) = each %$res) {
		2789	my $meta = $enc->encode ({
		2790	name => $name,
		2791	type => $info->{type},
		2792	copyright => $info->{copyright}, #TODO#
		2793	});
		2794
		2795	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2796
		2797	if ($name =~ /\.jpg$/) {
		2798	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2799	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2800	} else {
		2801	my $data = pack "(w/a*)*", $meta, $info->{data};
		2802	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2803
		2804	cf::face::set_type $idx, 1;
		2805	cf::face::set_data $idx, 0, $data, $chk;
		2806	}
		2807
		2808	cf::cede_to_tick;
		2809	}
		2810	}
		2811
		2812	1
		2813	}
		2814
		2815	sub reload_regions {
		2816	load_resource_file "$MAPDIR/regions"
		2817	or die "unable to load regions file\n";
		2818
		2819	for (cf::region::list) {
		2820	$_->{match} = qr/$_->{match}/
		2821	if exists $_->{match};
		2822	}
		2823	}
		2824
		2825	sub reload_facedata {
		2826	load_facedata "$DATADIR/facedata"
		2827	or die "unable to load facedata\n";
		2828	}
		2829
		2830	sub reload_archetypes {
		2831	load_resource_file "$DATADIR/archetypes"
		2832	or die "unable to load archetypes\n";
		2833	#d# NEED to laod twice to resolve forward references
		2834	# this really needs to be done in an extra post-pass
		2835	# (which needs to be synchronous, so solve it differently)
		2836	load_resource_file "$DATADIR/archetypes"
		2837	or die "unable to load archetypes\n";
		2838	}
		2839
		2840	sub reload_treasures {
		2841	load_resource_file "$DATADIR/treasures"
		2842	or die "unable to load treasurelists\n";
		2843	}
		2844
		2845	sub reload_resources {
		2846	warn "reloading resource files...\n";
		2847
		2848	reload_regions;
		2849	reload_facedata;
		2850	#reload_archetypes;#d#
		2851	reload_archetypes;
		2852	reload_treasures;
		2853
		2854	warn "finished reloading resource files\n";
		2855	}
		2856
		2857	sub init {
		2858	reload_resources;
		2859	}
1879		2860
1880	sub cfg_load {	2861	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2862	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2863	or return;
1883		2864
1884	local $/;	2865	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2866	*CFG = YAML::Syck::Load <$fh>;
		2867
		2868	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2869
		2870	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2871	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2872
		2873	if (exists $CFG{mlockall}) {
		2874	eval {
		2875	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2876	and die "WARNING: m(un)lockall failed: $!\n";
		2877	};
		2878	warn $@ if $@;
		2879	}
1886	}	2880	}
1887		2881
1888	sub main {	2882	sub main {
1889	# we must not ever block the main coroutine	2883	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2884	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2885	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2886	(async {
1893	Event::one_event;	2887	Event::one_event;
1894	})->();	2888	})->prio (Coro::PRIO_MAX);
1895	};	2889	};
1896		2890
1897	cfg_load;	2891	cfg_load;
1898	db_load;	2892	db_init;
1899	load_extensions;	2893	load_extensions;
		2894
		2895	$TICK_WATCHER->start;
1900	Event::loop;	2896	Event::loop;
1901	}	2897	}
1902		2898
1903	#############################################################################	2899	#############################################################################
1904	# initialisation	2900	# initialisation and cleanup
1905		2901
		2902	# install some emergency cleanup handlers
		2903	BEGIN {
		2904	for my $signal (qw(INT HUP TERM)) {
		2905	Event->signal (
		2906	reentrant => 0,
		2907	data => WF_AUTOCANCEL,
		2908	signal => $signal,
		2909	prio => 0,
		2910	cb => sub {
		2911	cf::cleanup "SIG$signal";
		2912	},
		2913	);
		2914	}
		2915	}
		2916
		2917	sub write_runtime {
		2918	my $runtime = "$LOCALDIR/runtime";
		2919
		2920	# first touch the runtime file to show we are still running:
		2921	# the fsync below can take a very very long time.
		2922
		2923	IO::AIO::aio_utime $runtime, undef, undef;
		2924
		2925	my $guard = cf::lock_acquire "write_runtime";
		2926
		2927	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2928	or return;
		2929
		2930	my $value = $cf::RUNTIME + 90 + 10;
		2931	# 10 is the runtime save interval, for a monotonic clock
		2932	# 60 allows for the watchdog to kill the server.
		2933
		2934	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2935	and return;
		2936
		2937	# always fsync - this file is important
		2938	aio_fsync $fh
		2939	and return;
		2940
		2941	# touch it again to show we are up-to-date
		2942	aio_utime $fh, undef, undef;
		2943
		2944	close $fh
		2945	or return;
		2946
		2947	aio_rename "$runtime~", $runtime
		2948	and return;
		2949
		2950	warn "runtime file written.\n";
		2951
		2952	1
		2953	}
		2954
		2955	sub emergency_save() {
		2956	my $freeze_guard = cf::freeze_mainloop;
		2957
		2958	warn "enter emergency perl save\n";
		2959
		2960	cf::sync_job {
		2961	# use a peculiar iteration method to avoid tripping on perl
		2962	# refcount bugs in for. also avoids problems with players
		2963	# and maps saved/destroyed asynchronously.
		2964	warn "begin emergency player save\n";
		2965	for my $login (keys %cf::PLAYER) {
		2966	my $pl = $cf::PLAYER{$login} or next;
		2967	$pl->valid or next;
		2968	$pl->save;
		2969	}
		2970	warn "end emergency player save\n";
		2971
		2972	warn "begin emergency map save\n";
		2973	for my $path (keys %cf::MAP) {
		2974	my $map = $cf::MAP{$path} or next;
		2975	$map->valid or next;
		2976	$map->save;
		2977	}
		2978	warn "end emergency map save\n";
		2979
		2980	warn "begin emergency database checkpoint\n";
		2981	BDB::db_env_txn_checkpoint $DB_ENV;
		2982	warn "end emergency database checkpoint\n";
		2983	};
		2984
		2985	warn "leave emergency perl save\n";
		2986	}
		2987
		2988	sub post_cleanup {
		2989	my ($make_core) = @_;
		2990
		2991	warn Carp::longmess "post_cleanup backtrace"
		2992	if $make_core;
		2993	}
		2994
1906	sub reload() {	2995	sub do_reload_perl() {
1907	# can/must only be called in main	2996	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2997	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2998	warn "can only reload from main coroutine";
1910	return;	2999	return;
1911	}	3000	}
1912		3001
1913	warn "reloading...";	3002	warn "reloading...";
1914		3003
1915	local $FREEZE = 1;	3004	warn "entering sync_job";
		3005
		3006	cf::sync_job {
		3007	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	3008	cf::emergency_save;
		3009	cf::write_runtime; # external watchdog should not bark
1917		3010
1918	eval {	3011	warn "syncing database to disk";
		3012	BDB::db_env_txn_checkpoint $DB_ENV;
		3013
1919	# if anything goes wrong in here, we should simply crash as we already saved	3014	# if anything goes wrong in here, we should simply crash as we already saved
1920		3015
1921	# cancel all watchers	3016	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	3017	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	3018	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	3019	}
1925		3020
		3021	warn "flushing outstanding aio requests";
		3022	for (;;) {
		3023	BDB::flush;
		3024	IO::AIO::flush;
		3025	Coro::cede;
		3026	last unless IO::AIO::nreqs || BDB::nreqs;
		3027	warn "iterate...";
		3028	}
		3029
		3030	++$RELOAD;
		3031
1926	# cancel all extension coros	3032	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	3033	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	3034	%EXT_CORO = ();
1929		3035
1930	# unload all extensions	3036	warn "removing commands";
1931	for (@exts) {	3037	%COMMAND = ();
		3038
		3039	warn "removing ext/exti commands";
		3040	%EXTCMD = ();
		3041	%EXTICMD = ();
		3042
		3043	warn "unloading/nuking all extensions";
		3044	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	3045	warn "... unloading $pkg";
1933	unload_extension $_;	3046
		3047	if (my $cb = $pkg->can ("unload")) {
		3048	eval {
		3049	$cb->($pkg);
		3050	1
		3051	} or warn "$pkg unloaded, but with errors: $@";
1934	}	3052	}
1935		3053
		3054	warn "... nuking $pkg";
		3055	Symbol::delete_package $pkg;
		3056	}
		3057
1936	# unload all modules loaded from $LIBDIR	3058	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	3059	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3060	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		3061
1940	warn "removing <$k>";	3062	warn "... unloading $k";
1941	delete $INC{$k};	3063	delete $INC{$k};
1942		3064
1943	$k =~ s/\.pm$//;	3065	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	3066	$k =~ s/\//::/g;
1945		3067
…		…
1948	}	3070	}
1949		3071
1950	Symbol::delete_package $k;	3072	Symbol::delete_package $k;
1951	}	3073	}
1952		3074
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	3075	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	3076	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3077	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		3078
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	3079	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	3080	delete $INC{"cf.pm"};
		3081	delete $INC{"cf/pod.pm"};
1966		3082
1967	# don't, removes xs symbols, too,	3083	# don't, removes xs symbols, too,
1968	# and global variables created in xs	3084	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	3085	#Symbol::delete_package __PACKAGE__;
1970		3086
1971	# reload cf.pm	3087	warn "unload completed, starting to reload now";
		3088
1972	warn "reloading cf.pm";	3089	warn "reloading cf.pm";
1973	require cf;	3090	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3091	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		3092
1976	# load config and database again	3093	warn "loading config and database again";
1977	cf::cfg_load;	3094	cf::cfg_load;
1978	cf::db_load;
1979		3095
1980	# load extensions
1981	warn "load extensions";	3096	warn "loading extensions";
1982	cf::load_extensions;	3097	cf::load_extensions;
1983		3098
1984	# reattach attachments to objects	3099	warn "reattaching attachments to objects/players";
1985	warn "reattach";	3100	_global_reattach; # objects, sockets
1986	_global_reattach;	3101	warn "reattaching attachments to maps";
1987	};	3102	reattach $_ for values %MAP;
		3103	warn "reattaching attachments to players";
		3104	reattach $_ for values %PLAYER;
1988		3105
1989	if ($@) {	3106	warn "leaving sync_job";
		3107
		3108	1
		3109	} or do {
1990	warn $@;	3110	warn $@;
1991	warn "error while reloading, exiting.";	3111	warn "error while reloading, exiting.";
1992	exit 1;	3112	exit 1;
1993	}	3113	};
1994		3114
1995	warn "reloaded successfully";	3115	warn "reloaded";
1996	};	3116	};
1997		3117
1998	#############################################################################	3118	our $RELOAD_WATCHER; # used only during reload
1999		3119
2000	unless ($LINK_MAP) {	3120	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	3121	# doing reload synchronously and two reloads happen back-to-back,
		3122	# coro crashes during coro_state_free->destroy here.
2002		3123
2003	$LINK_MAP->width (41);	3124	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	3125	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,	3126	after => 0,
		3127	data => WF_AUTOCANCEL,
2013	cb => sub {	3128	cb => sub {
2014	$_[0]->w->cancel;	3129	do_reload_perl;
2015		3130	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	});	3131	},
2034		3132	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	3133	}
2040
2041	register "<global>", __PACKAGE__;
2042		3134
2043	register_command "reload" => sub {	3135	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	3136	my ($who, $arg) = @_;
2045		3137
2046	if ($who->flag (FLAG_WIZ)) {	3138	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	3139	$who->message ("reloading server.");
		3140	async { reload_perl };
2050	}	3141	}
2051	};	3142	};
2052		3143
2053	unshift @INC, $LIBDIR;	3144	unshift @INC, $LIBDIR;
2054		3145
		3146	my $bug_warning = 0;
		3147
		3148	our @WAIT_FOR_TICK;
		3149	our @WAIT_FOR_TICK_BEGIN;
		3150
		3151	sub wait_for_tick {
		3152	return unless $TICK_WATCHER->is_active;
		3153	return if $Coro::current == $Coro::main;
		3154
		3155	my $signal = new Coro::Signal;
		3156	push @WAIT_FOR_TICK, $signal;
		3157	$signal->wait;
		3158	}
		3159
		3160	sub wait_for_tick_begin {
		3161	return unless $TICK_WATCHER->is_active;
		3162	return if $Coro::current == $Coro::main;
		3163
		3164	my $signal = new Coro::Signal;
		3165	push @WAIT_FOR_TICK_BEGIN, $signal;
		3166	$signal->wait;
		3167	}
		3168
		3169	my $min = 1e6;#d#
		3170	my $avg = 10;
2055	$TICK_WATCHER = Event->timer (	3171	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	3172	reentrant => 0,
		3173	parked => 1,
2057	prio => 0,	3174	prio => 0,
2058	at => $NEXT_TICK || $TICK,	3175	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	3176	data => WF_AUTOCANCEL,
2060	cb => sub {	3177	cb => sub {
2061	unless ($FREEZE) {	3178	if ($Coro::current != $Coro::main) {
		3179	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3180	unless ++$bug_warning > 10;
		3181	return;
		3182	}
		3183
		3184	$NOW = $tick_start = Event::time;
		3185
2062	cf::server_tick; # one server iteration	3186	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;	3187
		3188	0 && sync_job {#d#
		3189	for(1..10) {
		3190	my $t = Event::time;
		3191	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3192	or die;
		3193
		3194	$map->width (50);
		3195	$map->height (50);
		3196	$map->alloc;
		3197	$map->_load_objects ("/tmp/x.map", 1);
		3198	my $t = Event::time - $t;
		3199
		3200	#next unless $t < 0.0013;#d#
		3201	if ($t < $min) {
		3202	$min = $t;
		3203	}
		3204	$avg = $avg * 0.99 + $t * 0.01;
		3205	}
		3206	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3207	exit 0;
		3208	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2064	}	3209	};
2065		3210
		3211	$RUNTIME += $TICK;
2066	$NEXT_TICK += $TICK;	3212	$NEXT_TICK += $TICK;
2067		3213
		3214	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3215	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3216	Coro::async_pool {
		3217	write_runtime
		3218	or warn "ERROR: unable to write runtime file: $!";
		3219	};
		3220	}
		3221
		3222	# my $AFTER = Event::time;
		3223	# warn $AFTER - $NOW;#d#
		3224
		3225	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3226	$sig->send;
		3227	}
		3228	while (my $sig = shift @WAIT_FOR_TICK) {
		3229	$sig->send;
		3230	}
		3231
		3232	$NOW = Event::time;
		3233
2068	# if we are delayed by four ticks or more, skip them all	3234	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3235	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		3236
2071	$TICK_WATCHER->at ($NEXT_TICK);	3237	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	3238	$TICK_WATCHER->start;
		3239
		3240	$LOAD = ($NOW - $tick_start) / $TICK;
		3241	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3242
		3243	_post_tick;
		3244
		3245
2073	},	3246	},
2074	);	3247	);
2075		3248
		3249	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	3250	BDB::max_poll_time $TICK * 0.1;
2077		3251	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	3252	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	3253	fd => BDB::poll_fileno,
2080	poll => 'r',	3254	poll => 'r',
2081	prio => 5,	3255	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	3256	data => WF_AUTOCANCEL,
2088	after => 0,	3257	cb => \&BDB::poll_cb,
2089	interval => 10,	3258	);
2090	cb => sub {	3259	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	3260
2092	write_runtime	3261	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	3262	my $status;
		3263	my $current = $Coro::current;
		3264	(
		3265	sub {
		3266	$status = $!;
		3267	$current->ready; undef $current;
		3268	},
		3269	sub {
		3270	Coro::schedule while defined $current;
		3271	$! = $status;
		3272	},
		3273	)
		3274	};
		3275
		3276	unless ($DB_ENV) {
		3277	$DB_ENV = BDB::db_env_create;
		3278
		3279	cf::sync_job {
		3280	eval {
		3281	BDB::db_env_open
		3282	$DB_ENV,
		3283	$BDBDIR,
		3284	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3285	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3286	0666;
		3287
		3288	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3289
		3290	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3291	$DB_ENV->set_lk_detect;
		3292	};
		3293
		3294	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	3295	};
2095	},	3296	}
2096	);	3297	}
		3298
		3299	{
		3300	IO::AIO::min_parallel 8;
		3301
		3302	undef $Coro::AIO::WATCHER;
		3303	IO::AIO::max_poll_time $TICK * 0.1;
		3304	$AIO_POLL_WATCHER = Event->io (
		3305	reentrant => 0,
		3306	data => WF_AUTOCANCEL,
		3307	fd => IO::AIO::poll_fileno,
		3308	poll => 'r',
		3309	prio => 6,
		3310	cb => \&IO::AIO::poll_cb,
		3311	);
		3312	}
		3313
		3314	my $_log_backtrace;
		3315
		3316	sub _log_backtrace {
		3317	my ($msg, @addr) = @_;
		3318
		3319	$msg =~ s/\n//;
		3320
		3321	# limit the # of concurrent backtraces
		3322	if ($_log_backtrace < 2) {
		3323	++$_log_backtrace;
		3324	async {
		3325	my @bt = fork_call {
		3326	@addr = map { sprintf "%x", $_ } @addr;
		3327	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3328	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3329	or die "addr2line: $!";
		3330
		3331	my @funcs;
		3332	my @res = <$fh>;
		3333	chomp for @res;
		3334	while (@res) {
		3335	my ($func, $line) = splice @res, 0, 2, ();
		3336	push @funcs, "[$func] $line";
		3337	}
		3338
		3339	@funcs
		3340	};
		3341
		3342	LOG llevInfo, "[ABT] $msg\n";
		3343	LOG llevInfo, "[ABT] $_\n" for @bt;
		3344	--$_log_backtrace;
		3345	};
		3346	} else {
		3347	LOG llevInfo, "[ABT] $msg\n";
		3348	LOG llevInfo, "[ABT] [suppressed]\n";
		3349	}
		3350	}
		3351
		3352	# load additional modules
		3353	use cf::pod;
		3354
		3355	END { cf::emergency_save }
2097		3356
2098	1	3357	1
2099		3358

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