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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.253 by root, Wed Apr 18 17:32:07 2007 UTC vs.
Revision 1.603 by root, Tue Nov 13 01:12:23 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Socket;	29	use Socket;
9	use Storable;	30	use EV;
10	use Event;
11	use Opcode;	31	use Opcode;
12	use Safe;	32	use Safe;
13	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
14		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
15	use Coro 3.61 ();	41	use Coro ();
16	use Coro::State;	42	use Coro::State;
17	use Coro::Handle;	43	use Coro::Handle;
		44	use Coro::EV;
18	use Coro::Event;	45	use Coro::AnyEvent;
19	use Coro::Timer;	46	use Coro::Timer;
20	use Coro::Signal;	47	use Coro::Signal;
21	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
22	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
23	use Coro::Storable;	53	use Coro::Storable;
		54	use Coro::Util ();
24		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
25	use BDB ();	58	use BDB ();
26	use Data::Dumper;	59	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	60	use Fcntl;
29	use YAML::Syck ();	61	use YAML::XS ();
30	use IO::AIO 2.32 ();	62	use IO::AIO ();
31	use Time::HiRes;
32	use Compress::LZF;	63	use Compress::LZF;
		64	use Digest::MD5 ();
		65
		66	AnyEvent::detect;
33		67
34	# configure various modules to our taste	68	# configure various modules to our taste
35	#	69	#
36	$Storable::canonical = 1; # reduce rsync transfers	70	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	71	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		72
		73	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		74
		75	# make sure c-lzf reinitialises itself
		76	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	77	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		78
40	$Event::Eval = 1; # no idea why this is required, but it is	79	# strictly for debugging
41		80	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		81
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	82	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		83
		84	our @ORIG_INC;
48		85
49	our %COMMAND = ();	86	our %COMMAND = ();
50	our %COMMAND_TIME = ();	87	our %COMMAND_TIME = ();
51		88
52	our @EXTS = (); # list of extension package names	89	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	90	our %EXTCMD = ();
		91	our %EXTACMD = ();
		92	our %EXTICMD = ();
		93	our %EXTIACMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	94	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	95	our %EXT_MAP = (); # pluggable maps
56		96
57	our $RELOAD; # number of reloads so far	97	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	98	our @EVENT;
		99	our @REFLECT; # set by XS
		100	our %REFLECT; # set by us
59		101
60	our $CONFDIR = confdir;	102	our $CONFDIR = confdir;
		103
61	our $DATADIR = datadir;	104	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	105	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	106	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	107	our $MAPDIR = "$DATADIR/" . mapdir;
		108
65	our $LOCALDIR = localdir;	109	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	110	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	111	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	112	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	113	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	114	our $BDBDIR = "$LOCALDIR/db";
		115	our $PIDFILE = "$LOCALDIR/pid";
		116	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		117
		118	#our %RESOURCE; # unused
		119
		120	our $OUTPUT_RATE_MIN = 3000;
		121	our $OUTPUT_RATE_MAX = 1000000;
		122
		123	our $MAX_LINKS = 32; # how many chained exits to follow
		124	our $VERBOSE_IO = 1;
71		125
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	126	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	127	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	128	our $NEXT_TICK;
		129	our $USE_FSYNC = 1; # use fsync to write maps - default on
		130
		131	our $BDB_DEADLOCK_WATCHER;
		132	our $BDB_CHECKPOINT_WATCHER;
		133	our $BDB_TRICKLE_WATCHER;
		134	our $DB_ENV;
		135
		136	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		137
		138	our %CFG;
		139	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		140
		141	our $UPTIME; $UPTIME ||= time;
		142	our $RUNTIME = 0;
		143	our $SERVER_TICK = 0;
77	our $NOW;	144	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		145
80	our $BDB_POLL_WATCHER;	146	our (%PLAYER, %PLAYER_LOADING); # all users
81	our $DB_ENV;	147	our (%MAP, %MAP_LOADING ); # all maps
82
83	our %CFG;
84
85	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;
87
88	our %PLAYER; # all users
89	our %MAP; # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	148	our $LINK_MAP; # the special {link} map, which is always available
91		149
92	# used to convert map paths into valid unix filenames by replacing / by ∕	150	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	151	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		152
		153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		154	our $LOADAVG; # same thing, but with alpha-smoothing
		155	our $JITTER; # average jitter
		156	our $TICK_START; # for load detecting purposes
		157
		158	our @POST_INIT;
		159
		160	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		161	our $REALLY_UNLOOP; # never set to true, please :)
		162
		163	our $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
		165
95	binmode STDOUT;	166	binmode STDOUT;
96	binmode STDERR;	167	binmode STDERR;
97		168
98	# read virtual server time, if available	169	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	171	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
103	}	174	}
		175
		176	eval "sub TICK() { $TICK } 1" or die;
104		177
105	mkdir $_	178	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		180
108	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
109		182
110	sub cf::map::normalise;	183	sub cf::map::normalise;
111		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
112	#############################################################################	189	#############################################################################
113		190
		191	%REFLECT = ();
		192	for (@REFLECT) {
		193	my $reflect = JSON::XS::decode_json $_;
		194	$REFLECT{$reflect->{class}} = $reflect;
		195	}
		196
		197	# this is decidedly evil
		198	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		199
		200	#############################################################################
		201
114	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
115		203
116	=over 4	204	=over 4
117		205
118	=item $cf::UPTIME	206	=item $cf::UPTIME
119		207
120	The timestamp of the server start (so not actually an uptime).	208	The timestamp of the server start (so not actually an "uptime").
		209
		210	=item $cf::SERVER_TICK
		211
		212	An unsigned integer that starts at zero when the server is started and is
		213	incremented on every tick.
		214
		215	=item $cf::NOW
		216
		217	The (real) time of the last (current) server tick - updated before and
		218	after tick processing, so this is useful only as a rough "what time is it
		219	now" estimate.
		220
		221	=item $cf::TICK
		222
		223	The interval between each server tick, in seconds.
121		224
122	=item $cf::RUNTIME	225	=item $cf::RUNTIME
123		226
124	The time this server has run, starts at 0 and is increased by $cf::TICK on	227	The time this server has run, starts at 0 and is increased by $cf::TICK on
125	every server tick.	228	every server tick.
126		229
127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR	231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR	232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
130		233
131	Various directories - "/etc", read-only install directory, perl-library	234	Various directories - "/etc", read-only install directory, perl-library
132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
133	unique-items directory, player file directory, random maps directory and	236	unique-items directory, player file directory, random maps directory and
134	database environment.	237	database environment.
135		238
		239	=item $cf::LOADAVG
		240
		241	The current CPU load on the server (alpha-smoothed), as a value between 0
		242	(none) and 1 (overloaded), indicating how much time is spent on processing
		243	objects per tick. Healthy values are < 0.5.
		244
136	=item $cf::NOW	245	=item $cf::LOAD
137		246
138	The time of the last (current) server tick.	247	The raw value load value from the last tick.
139
140	=item $cf::TICK
141
142	The interval between server ticks, in seconds.
143		248
144	=item %cf::CFG	249	=item %cf::CFG
145		250
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	252	from wherever your confdir points to.
148		253
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		255
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	256	These are functions that inhibit the current coroutine one tick.
152	returns directly I<after> the tick processing (and consequently, can only wake one process	257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
154		289
155	=back	290	=back
156		291
157	=cut	292	=cut
158		293
159	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
160	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
161	my $msg = join "", @_;	301	my $msg = join "", @_;
162		302
163	$msg .= "\n"	303	$msg .= "\n"
164	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
165		305
166	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		307
168	utf8::encode $msg;
169	LOG llevError, $msg;	308	LOG llevWarn, $msg;
170	};	309	};
171	}	310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
172		324
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		332
180	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	334	# within the Safe compartment.
182	for my $pkg (qw(	335	for my $pkg (qw(
183	cf::global cf::attachable	336	cf::global cf::attachable
184	cf::object cf::object::player	337	cf::object cf::object::player
185	cf::client cf::player	338	cf::client cf::player
186	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
187	cf::map cf::party cf::region	341	cf::party cf::region
188	)) {	342	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	344	}
192		345
193	$Event::DIED = sub {	346	$EV::DIED = sub {
194	warn "error in event callback: @_";	347	warn "error in event callback: $@";
195	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
196		356
197	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
198		358
199	=over 4	359	=over 4
200		360
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	380	$d
221	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
222	}	382	}
223		383
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
225		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
226	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
227		437
228	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
229		439
230	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
231		441
232	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
233		443
		444	=cut
		445
		446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		447
		448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
		511	}
		512
234	=item cf::lock_wait $string	513	=item cf::lock_wait $string
235		514
236	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
237		516
238	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
239		518
240	Wait until the given lock is available and then acquires it and returns	519	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
243	returned.	522	returned.
244		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
245	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
247		529
248	=item $locked = cf::lock_active $string	530	=item $locked = cf::lock_active $string
249		531
250	Return true if the lock is currently active, i.e. somebody has locked it.	532	Return true if the lock is currently active, i.e. somebody has locked it.
251		533
252	=cut	534	=cut
253		535
254	our %LOCK;	536	our $LOCKS = new Coro::SemaphoreSet;
255		537
256	sub lock_wait($) {	538	sub lock_wait($) {
257	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	540	}
265		541
266	sub lock_acquire($) {	542	sub lock_acquire($) {
267	my ($key) = @_;	543	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	544	}
279		545
280	sub lock_active($) {	546	sub lock_active($) {
281	my ($key) = @_;	547	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	548	}
285		549
286	sub freeze_mainloop {	550	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
288		552
289	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	554	}
		555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority less than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
291	};	623	}
292	$TICK_WATCHER->stop;	624	};
293	$guard	625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
294	}	639	}
295		640
296	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
297		642
298	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		648
304	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
305		650
306	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
307		652
308	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
311		657
312	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
315	fast or be very important.	661	fast or be very important.
…		…
317	=cut	663	=cut
318		664
319	sub sync_job(&) {	665	sub sync_job(&) {
320	my ($job) = @_;	666	my ($job) = @_;
321		667
322	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
323	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
325		673
326	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	675
328	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
329		677
330	my $busy = 1;	678	my $busy = 1;
331	my @res;	679	my @res;
332		680
333	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	683	@res = eval { $job->() };
335	warn $@ if $@;	684	error $@ if $@;
336	undef $busy;	685	undef $busy;
337	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
338		687
339	while ($busy) {	688	while ($busy) {
340	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
341	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
342		699
343	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
344	} else {	701	} else {
345	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
346		703
…		…
366	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
367		724
368	$coro	725	$coro
369	}	726	}
370		727
371	sub write_runtime {	728	=item fork_call { }, @args
372	my $guard = cf::lock_acquire "write_runtime";
373		729
374	my $runtime = "$LOCALDIR/runtime";	730	Executes the given code block with the given arguments in a seperate
		731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
375		734
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	735	=cut
377	or return;
378		736
379	my $value = $cf::RUNTIME + 90 + 10;	737	sub post_fork {
380	# 10 is the runtime save interval, for a monotonic clock	738	reset_signals;
381	# 60 allows for the watchdog to kill the server.	739	}
382		740
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	741	sub fork_call(&@) {
384	and return;	742	my ($cb, @args) = @_;
385		743
386	# always fsync - this file is important	744	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	745	cf::post_fork;
388	and return;	746	&$cb
		747	} @args;
389		748
390	close $fh	749	wantarray ? @res : $res[-1]
391	or return;	750	}
392		751
393	aio_rename "$runtime~", $runtime	752	sub objinfo {
394	and return;
395
396	1	753	(
		754	"counter value" => cf::object::object_count,
		755	"objects created" => cf::object::create_count,
		756	"objects destroyed" => cf::object::destroy_count,
		757	"freelist size" => cf::object::free_count,
		758	"allocated objects" => cf::object::objects_size,
		759	"active objects" => cf::object::actives_size,
		760	)
		761	}
		762
		763	=item $coin = coin_from_name $name
		764
		765	=cut
		766
		767	our %coin_alias = (
		768	"silver" => "silvercoin",
		769	"silvercoin" => "silvercoin",
		770	"silvercoins" => "silvercoin",
		771	"gold" => "goldcoin",
		772	"goldcoin" => "goldcoin",
		773	"goldcoins" => "goldcoin",
		774	"platinum" => "platinacoin",
		775	"platinumcoin" => "platinacoin",
		776	"platinumcoins" => "platinacoin",
		777	"platina" => "platinacoin",
		778	"platinacoin" => "platinacoin",
		779	"platinacoins" => "platinacoin",
		780	"royalty" => "royalty",
		781	"royalties" => "royalty",
		782	);
		783
		784	sub coin_from_name($) {
		785	$coin_alias{$_[0]}
		786	? cf::arch::find $coin_alias{$_[0]}
		787	: undef
		788	}
		789
		790	=item $value = cf::db_get $family => $key
		791
		792	Returns a single value from the environment database.
		793
		794	=item cf::db_put $family => $key => $value
		795
		796	Stores the given C<$value> in the family. It can currently store binary
		797	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		798
		799	=item $db = cf::db_table "name"
		800
		801	Create and/or open a new database table. The string must not be "db" and must be unique
		802	within each server.
		803
		804	=cut
		805
		806	sub db_table($) {
		807	cf::error "db_get called from main context"
		808	if $Coro::current == $Coro::main;
		809
		810	my ($name) = @_;
		811	my $db = BDB::db_create $DB_ENV;
		812
		813	eval {
		814	$db->set_flags (BDB::CHKSUM);
		815
		816	utf8::encode $name;
		817	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		818	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		819	cf::cleanup "db_open(db): $!" if $!;
		820	};
		821	cf::cleanup "db_open(db): $@" if $@;
		822
		823	$db
		824	}
		825
		826	our $DB;
		827
		828	sub db_init {
		829	$DB ||= db_table "db";
		830	}
		831
		832	sub db_get($$) {
		833	my $key = "$_[0]/$_[1]";
		834
		835	cf::error "db_get called from main context"
		836	if $Coro::current == $Coro::main;
		837
		838	BDB::db_get $DB, undef, $key, my $data;
		839
		840	$! ? ()
		841	: $data
		842	}
		843
		844	sub db_put($$$) {
		845	BDB::dbreq_pri 4;
		846	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		847	}
		848
		849	=item cf::cache $id => [$paths...], $processversion => $process
		850
		851	Generic caching function that returns the value of the resource $id,
		852	caching and regenerating as required.
		853
		854	This function can block.
		855
		856	=cut
		857
		858	sub cache {
		859	my ($id, $src, $processversion, $process) = @_;
		860
		861	my $meta =
		862	join "\x00",
		863	$processversion,
		864	map {
		865	aio_stat $_
		866	and Carp::croak "$_: $!";
		867
		868	($_, (stat _)[7,9])
		869	} @$src;
		870
		871	my $dbmeta = db_get cache => "$id/meta";
		872	if ($dbmeta ne $meta) {
		873	# changed, we may need to process
		874
		875	my @data;
		876	my $md5;
		877
		878	for (0 .. $#$src) {
		879	$data[$_] = load_file $src->[$_];
		880	}
		881
		882	# if processing is expensive, check
		883	# checksum first
		884	if (1) {
		885	$md5 =
		886	join "\x00",
		887	$processversion,
		888	map {
		889	cf::cede_to_tick;
		890	($src->[$_], Digest::MD5::md5_hex $data[$_])
		891	} 0.. $#$src;
		892
		893
		894	my $dbmd5 = db_get cache => "$id/md5";
		895	if ($dbmd5 eq $md5) {
		896	db_put cache => "$id/meta", $meta;
		897
		898	return db_get cache => "$id/data";
		899	}
		900	}
		901
		902	my $t1 = EV::time;
		903	my $data = $process->(\@data);
		904	my $t2 = EV::time;
		905
		906	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		907
		908	db_put cache => "$id/data", $data;
		909	db_put cache => "$id/md5" , $md5;
		910	db_put cache => "$id/meta", $meta;
		911
		912	return $data;
		913	}
		914
		915	db_get cache => "$id/data"
397	}	916	}
398		917
399	=item cf::datalog type => key => value, ...	918	=item cf::datalog type => key => value, ...
400		919
401	Log a datalog packet of the given type with the given key-value pairs.	920	Log a datalog packet of the given type with the given key-value pairs.
402		921
403	=cut	922	=cut
404		923
405	sub datalog($@) {	924	sub datalog($@) {
406	my ($type, %kv) = @_;	925	my ($type, %kv) = @_;
407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	926	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
408	}	927	}
409		928
410	=back	929	=back
411		930
412	=cut	931	=cut
413		932
414	#############################################################################	933	#############################################################################
415		934
416	=head2 ATTACHABLE OBJECTS	935	=head2 ATTACHABLE OBJECTS
417		936
418	Many objects in crossfire are so-called attachable objects. That means you can	937	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	938	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	939	to it. All such attachable objects support the following methods.
421		940
422	In the following description, CLASS can be any of C<global>, C<object>	941	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	942	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	943	Deliantra).
425		944
426	=over 4	945	=over 4
427		946
428	=item $attachable->attach ($attachment, key => $value...)	947	=item $attachable->attach ($attachment, key => $value...)
429		948
…		…
473	=item cf::CLASS::attachment $name, ...	992	=item cf::CLASS::attachment $name, ...
474		993
475	Register an attachment by C<$name> through which attachable objects of the	994	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	995	given CLASS can refer to this attachment.
477		996
478	Some classes such as crossfire maps and objects can specify attachments	997	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	998	that are attached at load/instantiate time, thus the need for a name.
480		999
481	These calls expect any number of the following handler/hook descriptions:	1000	These calls expect any number of the following handler/hook descriptions:
482		1001
483	=over 4	1002	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	1111	$registry = $CB_TYPE[$object_type] ||= [];
593		1112
594	} elsif ($type eq "subtype") {	1113	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	1114	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	1115	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1116	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		1117
599	} elsif ($type eq "package") {	1118	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	1119	my $pkg = shift @arg;
601		1120
602	while (my ($name, $id) = each %cb_id) {	1121	while (my ($name, $id) = each %cb_id) {
…		…
607		1126
608	} elsif (exists $cb_id{$type}) {	1127	} elsif (exists $cb_id{$type}) {
609	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1128	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
610		1129
611	} elsif (ref $type) {	1130	} elsif (ref $type) {
612	warn "attaching objects not supported, ignoring.\n";	1131	error "attaching objects not supported, ignoring.\n";
613		1132
614	} else {	1133	} else {
615	shift @arg;	1134	shift @arg;
616	warn "attach argument '$type' not supported, ignoring.\n";	1135	error "attach argument '$type' not supported, ignoring.\n";
617	}	1136	}
618	}	1137	}
619	}	1138	}
620		1139
621	sub _object_attach {	1140	sub _object_attach {
…		…
631	_attach $registry, $klass, @attach;	1150	_attach $registry, $klass, @attach;
632	}	1151	}
633		1152
634	$obj->{$name} = \%arg;	1153	$obj->{$name} = \%arg;
635	} else {	1154	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	1155	info "object uses attachment '$name' which is not available, postponing.\n";
637	}	1156	}
638		1157
639	$obj->{_attachment}{$name} = undef;	1158	$obj->{_attachment}{$name} = undef;
640	}	1159	}
641		1160
…		…
643	if (ref $_[0]) {	1162	if (ref $_[0]) {
644	_object_attach @_;	1163	_object_attach @_;
645	} else {	1164	} else {
646	_attach shift->_attach_registry, @_;	1165	_attach shift->_attach_registry, @_;
647	}	1166	}
		1167	_recalc_want;
648	};	1168	};
649		1169
650	# all those should be optimised	1170	# all those should be optimised
651	sub cf::attachable::detach {	1171	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	1172	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	1175	delete $obj->{_attachment}{$name};
656	reattach ($obj);	1176	reattach ($obj);
657	} else {	1177	} else {
658	Carp::croak "cannot, currently, detach class attachments";	1178	Carp::croak "cannot, currently, detach class attachments";
659	}	1179	}
		1180	_recalc_want;
660	};	1181	};
661		1182
662	sub cf::attachable::attached {	1183	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	1184	my ($obj, $name) = @_;
664		1185
…		…
679	";	1200	";
680	die if $@;	1201	die if $@;
681	}	1202	}
682		1203
683	our $override;	1204	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1205	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1206
686	sub override {	1207	sub override {
687	$override = 1;	1208	$override = 1;
688	@invoke_results = ();	1209	@INVOKE_RESULTS = (@_);
689	}	1210	}
690		1211
691	sub do_invoke {	1212	sub do_invoke {
692	my $event = shift;	1213	my $event = shift;
693	my $callbacks = shift;	1214	my $callbacks = shift;
694		1215
695	@invoke_results = ();	1216	@INVOKE_RESULTS = ();
696		1217
697	local $override;	1218	local $override;
698		1219
699	for (@$callbacks) {	1220	for (@$callbacks) {
700	eval { &{$_->[1]} };	1221	eval { &{$_->[1]} };
701		1222
702	if ($@) {	1223	if ($@) {
703	warn "$@";
704	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1224	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
705	override;	1225	override;
706	}	1226	}
707		1227
708	return 1 if $override;	1228	return 1 if $override;
709	}	1229	}
710		1230
711	0	1231	0
712	}	1232	}
713		1233
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1235
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1237
718	Generate an object-specific event with the given arguments.	1238	Generate an object-specific event with the given arguments.
719		1239
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1240	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1241	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1242	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1243
724	=back	1244	=back
725		1245
726	=cut	1246	=cut
727		1247
728	#############################################################################	1248	#############################################################################
729	# object support	1249	# object support
		1250
		1251	sub _object_equal($$);
		1252	sub _object_equal($$) {
		1253	my ($a, $b) = @_;
		1254
		1255	return 0 unless (ref $a) eq (ref $b);
		1256
		1257	if ("HASH" eq ref $a) {
		1258	my @ka = keys %$a;
		1259	my @kb = keys %$b;
		1260
		1261	return 0 if @ka != @kb;
		1262
		1263	for (0 .. $#ka) {
		1264	return 0 unless $ka[$_] eq $kb[$_];
		1265	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1266	}
		1267
		1268	} elsif ("ARRAY" eq ref $a) {
		1269
		1270	return 0 if @$a != @$b;
		1271
		1272	for (0 .. $#$a) {
		1273	return 0 unless _object_equal $a->[$_], $b->[$_];
		1274	}
		1275
		1276	} elsif ($a ne $b) {
		1277	return 0;
		1278	}
		1279
		1280	1
		1281	}
		1282
		1283	our $SLOW_MERGES;#d#
		1284	sub _can_merge {
		1285	my ($ob1, $ob2) = @_;
		1286
		1287	++$SLOW_MERGES;#d#
		1288
		1289	# we do the slow way here
		1290	return _object_equal $ob1, $ob2
		1291	}
730		1292
731	sub reattach {	1293	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1294	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1295	my ($obj) = @_;
734		1296
		1297	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1298	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1299
737	my $registry = $obj->registry;	1300	my $registry = $obj->registry;
738		1301
739	@$registry = ();	1302	@$registry = ();
740		1303
…		…
745	for (@$attach) {	1308	for (@$attach) {
746	my ($klass, @attach) = @$_;	1309	my ($klass, @attach) = @$_;
747	_attach $registry, $klass, @attach;	1310	_attach $registry, $klass, @attach;
748	}	1311	}
749	} else {	1312	} else {
750	warn "object uses attachment '$name' that is not available, postponing.\n";	1313	info "object uses attachment '$name' that is not available, postponing.\n";
751	}	1314	}
752	}	1315	}
753	}	1316	}
754		1317
755	cf::attachable->attach (	1318	cf::attachable->attach (
756	prio => -1000000,	1319	prio => -1000000,
757	on_instantiate => sub {	1320	on_instantiate => sub {
758	my ($obj, $data) = @_;	1321	my ($obj, $data) = @_;
759		1322
760	$data = from_json $data;	1323	$data = decode_json $data;
761		1324
762	for (@$data) {	1325	for (@$data) {
763	my ($name, $args) = @$_;	1326	my ($name, $args) = @$_;
764		1327
765	$obj->attach ($name, %{$args || {} });	1328	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1344	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1345	my ($filename, $rdata, $objs) = @_;
783		1346
784	sync_job {	1347	sync_job {
785	if (length $$rdata) {	1348	if (length $$rdata) {
		1349	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1350	trace sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1351	$decname, length $$rdata, scalar @$objs
		1352	if $VERBOSE_IO;
788		1353
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1354	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1355	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1356	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1357	if ($cf::USE_FSYNC) {
		1358	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1359	aio_fsync $fh;
		1360	}
793	close $fh;	1361	aio_close $fh;
794		1362
795	if (@$objs) {	1363	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1364	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1365	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1366	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1367	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1368	if ($cf::USE_FSYNC) {
		1369	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1370	aio_fsync $fh;
		1371	}
801	close $fh;	1372	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1373	aio_rename "$filename.pst~", "$filename.pst";
803	}	1374	}
804	} else {	1375	} else {
805	aio_unlink "$filename.pst";	1376	aio_unlink "$filename.pst";
806	}	1377	}
807		1378
808	aio_rename "$filename~", $filename;	1379	aio_rename "$filename~", $filename;
		1380
		1381	$filename =~ s%/[^/]+$%%;
		1382	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1383	} else {
810	warn "FATAL: $filename~: $!\n";	1384	error "unable to save objects: $filename~: $!\n";
811	}	1385	}
812	} else {	1386	} else {
813	aio_unlink $filename;	1387	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1388	aio_unlink "$filename.pst";
815	}	1389	}
816	}	1390	};
817	}	1391	}
818		1392
819	sub object_freezer_as_string {	1393	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1394	my ($rdata, $objs) = @_;
821		1395
…		…
833	or return;	1407	or return;
834		1408
835	unless (aio_stat "$filename.pst") {	1409	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1410	(aio_load "$filename.pst", $av) >= 0
837	or return;	1411	or return;
		1412
838	$av = eval { (Storable::thaw $av)->{objs} };	1413	my $st = eval { Coro::Storable::thaw $av };
		1414	$av = $st->{objs};
839	}	1415	}
840		1416
		1417	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1418	trace sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1419	$decname, length $data, scalar @{$av || []}
		1420	if $VERBOSE_IO;
		1421
843	return ($data, $av);	1422	($data, $av)
844	}	1423	}
		1424
		1425	=head2 COMMAND CALLBACKS
		1426
		1427	=over 4
		1428
		1429	=cut
845		1430
846	#############################################################################	1431	#############################################################################
847	# command handling &c	1432	# command handling &c
848		1433
849	=item cf::register_command $name => \&callback($ob,$args);	1434	=item cf::register_command $name => \&callback($ob,$args)
850		1435
851	Register a callback for execution when the client sends the user command	1436	Register a callback for execution when the client sends the user command
852	$name.	1437	$name.
853		1438
854	=cut	1439	=cut
…		…
860	#warn "registering command '$name/$time' to '$caller'";	1445	#warn "registering command '$name/$time' to '$caller'";
861		1446
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1447	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1448	}
864		1449
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1450	=item cf::register_extcmd $name => \&callback($pl,@args)
866		1451
867	Register a callbackf ro execution when the client sends an extcmd packet.	1452	Register a callback for execution when the client sends an (synchronous)
		1453	extcmd packet. Ext commands will be processed in the order they are
		1454	received by the server, like other user commands. The first argument is
		1455	the logged-in player. Ext commands can only be processed after a player
		1456	has logged in successfully.
868		1457
869	If the callback returns something, it is sent back as if reply was being	1458	The values will be sent back to the client.
870	called.
871		1459
872	=cut	1460	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
873		1461
		1462	Same as C<cf::register_extcmd>, but instead of returning values, the
		1463	callback needs to clal the C<$reply> function.
		1464
		1465	=item cf::register_exticmd $name => \&callback($ns,@args)
		1466
		1467	Register a callback for execution when the client sends an (asynchronous)
		1468	exticmd packet. Exti commands are processed by the server as soon as they
		1469	are received, i.e. out of order w.r.t. other commands. The first argument
		1470	is a client socket. Exti commands can be received anytime, even before
		1471	log-in.
		1472
		1473	The values will be sent back to the client.
		1474
		1475	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1476
		1477	Same as C<cf::register_extcmd>, but instead of returning values, the
		1478	callback needs to clal the C<$reply> function.
		1479
		1480	=cut
		1481
874	sub register_extcmd {	1482	sub register_extcmd($$) {
875	my ($name, $cb) = @_;	1483	my ($name, $cb) = @_;
876		1484
877	$EXTCMD{$name} = $cb;	1485	$EXTCMD{$name} = $cb;
878	}	1486	}
879		1487
		1488	sub register_async_extcmd($$) {
		1489	my ($name, $cb) = @_;
		1490
		1491	$EXTACMD{$name} = $cb;
		1492	}
		1493
		1494	sub register_exticmd($$) {
		1495	my ($name, $cb) = @_;
		1496
		1497	$EXTICMD{$name} = $cb;
		1498	}
		1499
		1500	sub register_async_exticmd($$) {
		1501	my ($name, $cb) = @_;
		1502
		1503	$EXTIACMD{$name} = $cb;
		1504	}
		1505
		1506	use File::Glob ();
		1507
880	cf::player->attach (	1508	cf::player->attach (
881	on_command => sub {	1509	on_unknown_command => sub {
882	my ($pl, $name, $params) = @_;	1510	my ($pl, $name, $params) = @_;
883		1511
884	my $cb = $COMMAND{$name}	1512	my $cb = $COMMAND{$name}
885	or return;	1513	or return;
886		1514
…		…
891	cf::override;	1519	cf::override;
892	},	1520	},
893	on_extcmd => sub {	1521	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1522	my ($pl, $buf) = @_;
895		1523
896	my $msg = eval { from_json $buf };	1524	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1525
898	if (ref $msg) {	1526	if (ref $msg) {
		1527	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1528
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1529	if (my $cb = $EXTACMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1530	$cb->(
901	$pl->ext_reply ($msg->{msgid}, %reply);	1531	$pl,
		1532	sub {
		1533	$pl->ext_msg ("reply-$reply", @_)
		1534	if $reply;
		1535	},
		1536	@payload
		1537	);
		1538	} else {
		1539	my @reply;
		1540
		1541	if (my $cb = $EXTCMD{$type}) {
		1542	@reply = $cb->($pl, @payload);
902	}	1543	}
		1544
		1545	$pl->ext_msg ("reply-$reply", @reply)
		1546	if $reply;
903	}	1547	}
		1548
904	} else {	1549	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1550	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1551	}
907		1552
908	cf::override;	1553	cf::override;
909	},	1554	},
910	);	1555	);
911		1556
		1557	# "readahead" all extensions
912	sub load_extension {	1558	sub cache_extensions {
913	my ($path) = @_;	1559	my $grp = IO::AIO::aio_group;
914		1560
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1561	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1562	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1563	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1564	}
940	die $@;
941	}	1565	};
942		1566
943	push @EXTS, $pkg;	1567	$grp
		1568	}
		1569
		1570	sub _ext_cfg_reg($$$$) {
		1571	my ($rvar, $varname, $cfgname, $default) = @_;
		1572
		1573	$cfgname = lc $varname
		1574	unless length $cfgname;
		1575
		1576	$EXT_CFG{$cfgname} = [$rvar, $default];
		1577
		1578	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
944	}	1579	}
945		1580
946	sub load_extensions {	1581	sub load_extensions {
		1582	info "loading extensions...";
		1583
		1584	%EXT_CFG = ();
		1585
		1586	cf::sync_job {
		1587	my %todo;
		1588
947	for my $ext (<$LIBDIR/*.ext>) {	1589	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1590	next unless -r $path;
949	eval {	1591
950	load_extension $ext;	1592	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1593	my $base = $1;
		1594	my $pkg = $1;
		1595	$pkg =~ s/[^[:word:]]/_/g;
		1596	$pkg = "ext::$pkg";
		1597
		1598	open my $fh, "<:utf8", $path
		1599	or die "$path: $!";
		1600
		1601	my $source = do { local $/; <$fh> };
		1602
		1603	my %ext = (
		1604	path => $path,
		1605	base => $base,
		1606	pkg => $pkg,
		1607	);
		1608
		1609	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1610	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1611
		1612	$ext{source} =
		1613	"package $pkg; use common::sense;\n"
		1614	. "#line 1 \"$path\"\n{\n"
		1615	. $source
		1616	. "\n};\n1";
		1617
		1618	$todo{$base} = \%ext;
		1619	}
		1620
		1621	my $pass = 0;
		1622	my %done;
		1623	while (%todo) {
		1624	my $progress;
		1625
		1626	++$pass;
		1627
		1628	ext:
		1629	while (my ($k, $v) = each %todo) {
		1630	for (split /,\s*/, $v->{meta}{depends}) {
		1631	next ext
		1632	unless exists $done{$_};
		1633	}
		1634
		1635	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1636
		1637	my $source = $v->{source};
		1638
		1639	# support "CONF varname :confname = default" pseudo-statements
		1640	$source =~ s{
		1641	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1642	}{
		1643	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1644	}gmxe;
		1645
		1646	my $active = eval $source;
		1647
		1648	if (length $@) {
		1649	error "$v->{path}: $@\n";
		1650
		1651	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1652	if exists $v->{meta}{mandatory};
		1653
		1654	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1655	delete $todo{$k};
		1656	} else {
		1657	$done{$k} = delete $todo{$k};
		1658	push @EXTS, $v->{pkg};
		1659	$progress = 1;
		1660
		1661	info "$v->{base}: extension inactive.\n"
		1662	unless $active;
		1663	}
951	1	1664	}
952	} or warn "$ext not loaded: $@";	1665
		1666	unless ($progress) {
		1667	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1668
		1669	while (my ($k, $v) = each %todo) {
		1670	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1671	if exists $v->{meta}{mandatory};
		1672	}
		1673
		1674	last;
		1675	}
		1676	}
953	}	1677	};
954	}	1678	}
955		1679
956	#############################################################################	1680	#############################################################################
957		1681
		1682	=back
		1683
958	=head2 CORE EXTENSIONS	1684	=head2 CORE EXTENSIONS
959		1685
960	Functions and methods that extend core crossfire objects.	1686	Functions and methods that extend core deliantra objects.
961		1687
962	=cut	1688	=cut
963		1689
964	package cf::player;	1690	package cf::player;
965		1691
966	use Coro::AIO;	1692	use Coro::AIO;
967		1693
968	=head3 cf::player	1694	=head3 cf::player
969		1695
970	=over 4	1696	=over 4
		1697
		1698	=item cf::player::num_playing
		1699
		1700	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1701
		1702	=cut
		1703
		1704	sub num_playing {
		1705	scalar grep
		1706	$_->ob->map
		1707	&& !$_->hidden
		1708	&& !$_->ob->flag (cf::FLAG_WIZ),
		1709	cf::player::list
		1710	}
971		1711
972	=item cf::player::find $login	1712	=item cf::player::find $login
973		1713
974	Returns the given player object, loading it if necessary (might block).	1714	Returns the given player object, loading it if necessary (might block).
975		1715
…		…
994		1734
995	sub exists($) {	1735	sub exists($) {
996	my ($login) = @_;	1736	my ($login) = @_;
997		1737
998	$cf::PLAYER{$login}	1738	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1739	or !aio_stat path $login
1000	}	1740	}
1001		1741
1002	sub find($) {	1742	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1743	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1744	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1751	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1752	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1753	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1754	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1755
1016	my $pl = load_pl path $login	1756	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1757	or return;
		1758
		1759	my $pl = cf::player::load_pl $f
		1760	or return;
		1761
		1762	local $cf::PLAYER_LOADING{$login} = $pl;
		1763	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1764	$cf::PLAYER{$login} = $pl
1019	}	1765	}
1020	}	1766	}
1021	}	1767	}
		1768
		1769	cf::player->attach (
		1770	on_load => sub {
		1771	my ($pl, $path) = @_;
		1772
		1773	# restore slots saved in save, below
		1774	my $slots = delete $pl->{_slots};
		1775
		1776	$pl->ob->current_weapon ($slots->[0]);
		1777	$pl->combat_ob ($slots->[1]);
		1778	$pl->ranged_ob ($slots->[2]);
		1779	},
		1780	);
1022		1781
1023	sub save($) {	1782	sub save($) {
1024	my ($pl) = @_;	1783	my ($pl) = @_;
1025		1784
1026	return if $pl->{deny_save};	1785	return if $pl->{deny_save};
…		…
1031	return if $pl->{deny_save};	1790	return if $pl->{deny_save};
1032		1791
1033	aio_mkdir playerdir $pl, 0770;	1792	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1793	$pl->{last_save} = $cf::RUNTIME;
1035		1794
		1795	cf::get_slot 0.01;
		1796
		1797	# save slots, to be restored later
		1798	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1799
1036	$pl->save_pl ($path);	1800	$pl->save_pl ($path);
1037	Coro::cede;	1801	cf::cede_to_tick;
1038	}	1802	}
1039		1803
1040	sub new($) {	1804	sub new($) {
1041	my ($login) = @_;	1805	my ($login) = @_;
1042		1806
…		…
1048	$cf::PLAYER{$login} = $self;	1812	$cf::PLAYER{$login} = $self;
1049		1813
1050	$self	1814	$self
1051	}	1815	}
1052		1816
		1817	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1818
		1819	=cut
		1820
		1821	sub send_msg {
		1822	my $ns = shift->ns
		1823	or return;
		1824	$ns->send_msg (@_);
		1825	}
		1826
1053	=item $pl->quit_character	1827	=item $pl->quit_character
1054		1828
1055	Nukes the player without looking back. If logged in, the connection will	1829	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1830	be destroyed. May block for a long time.
1057		1831
…		…
1061	my ($pl) = @_;	1835	my ($pl) = @_;
1062		1836
1063	my $name = $pl->ob->name;	1837	my $name = $pl->ob->name;
1064		1838
1065	$pl->{deny_save} = 1;	1839	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1840	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1841
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1842	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1069	$pl->deactivate;	1843	$pl->deactivate;
		1844
		1845	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1846	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1847	ext::highscore::check ($pl->ob);
		1848
1071	$pl->ns->destroy if $pl->ns;	1849	$pl->ns->destroy if $pl->ns;
1072		1850
1073	my $path = playerdir $pl;	1851	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1852	my $temp = "$path~$cf::RUNTIME~deleting~";
1075	aio_rename $path, $temp;	1853	aio_rename $path, $temp;
…		…
1110	or return [];	1888	or return [];
1111		1889
1112	my @logins;	1890	my @logins;
1113		1891
1114	for my $login (@$dirs) {	1892	for my $login (@$dirs) {
		1893	my $path = path $login;
		1894
		1895	# a .pst is a dead give-away for a valid player
		1896	# if no pst file found, open and chekc for blocked users
		1897	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1898	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1899	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1900	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1901	}
1118		1902
1119	utf8::decode $login;	1903	utf8::decode $login;
1120	push @logins, $login;	1904	push @logins, $login;
1121	}	1905	}
1122		1906
1123	\@logins	1907	\@logins
1124	}	1908	}
1125		1909
1126	=item $player->maps	1910	=item $player->maps
		1911
		1912	=item cf::player::maps $login
1127		1913
1128	Returns an arrayref of map paths that are private for this	1914	Returns an arrayref of map paths that are private for this
1129	player. May block.	1915	player. May block.
1130		1916
1131	=cut	1917	=cut
…		…
1149	}	1935	}
1150		1936
1151	\@paths	1937	\@paths
1152	}	1938	}
1153		1939
1154	=item $player->ext_reply ($msgid, %msg)	1940	=item $protocol_xml = $player->expand_cfpod ($cfpod)
1155		1941
1156	Sends an ext reply to the player.	1942	Expand deliantra pod fragments into protocol xml.
1157		1943
1158	=cut
1159
1160	sub ext_reply($$%) {
1161	my ($self, $id, %msg) = @_;
1162
1163	$msg{msgid} = $id;
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}
1167
1168	=item $player->ext_event ($type, %msg)	1944	=item $player->ext_msg ($type, @msg)
1169		1945
1170	Sends an ext event to the client.	1946	Sends an ext event to the client.
1171		1947
1172	=cut	1948	=cut
1173		1949
1174	sub ext_event($$%) {	1950	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1951	my ($self, $type, @msg) = @_;
1176		1952
1177	$self->ns->ext_event ($type, %msg);	1953	$self->ns->ext_msg ($type, @msg);
1178	}	1954	}
1179		1955
1180	=head3 cf::region	1956	=head3 cf::region
1181		1957
1182	=over 4	1958	=over 4
…		…
1185		1961
1186	package cf::region;	1962	package cf::region;
1187		1963
1188	=item cf::region::find_by_path $path	1964	=item cf::region::find_by_path $path
1189		1965
1190	Tries to decuce the probable region for a map knowing only its path.	1966	Tries to decuce the likely region for a map knowing only its path.
1191		1967
1192	=cut	1968	=cut
1193		1969
1194	sub find_by_path($) {	1970	sub find_by_path($) {
1195	my ($path) = @_;	1971	my ($path) = @_;
1196		1972
		1973	$path =~ s/^~[^\/]*//; # skip ~login
		1974
1197	my ($match, $specificity);	1975	my ($match, $specificity);
1198		1976
1199	for my $region (list) {	1977	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1978	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1979	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1980	if $region->specificity > $specificity;
1203	}	1981	}
1204	}	1982	}
1205		1983
…		…
1226	our $MAX_RESET = 3600;	2004	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	2005	our $DEFAULT_RESET = 3000;
1228		2006
1229	sub generate_random_map {	2007	sub generate_random_map {
1230	my ($self, $rmp) = @_;	2008	my ($self, $rmp) = @_;
1231	# mit "rum" bekleckern, nicht	2009
		2010	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2011
1232	$self->_create_random_map (	2012	$self->_create_random_map ($rmp);
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1236	$rmp->{exit_on_final_map},
1237	$rmp->{xsize}, $rmp->{ysize},
1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1243	(cf::region::find $rmp->{region}), $rmp->{custom}
1244	)
1245	}	2013	}
1246		2014
1247	=item cf::map->register ($regex, $prio)	2015	=item cf::map->register ($regex, $prio)
1248		2016
1249	Register a handler for the map path matching the given regex at the	2017	Register a handler for the map path matching the given regex at the
…		…
1254		2022
1255	sub register {	2023	sub register {
1256	my (undef, $regex, $prio) = @_;	2024	my (undef, $regex, $prio) = @_;
1257	my $pkg = caller;	2025	my $pkg = caller;
1258		2026
1259	no strict;
1260	push @{"$pkg\::ISA"}, __PACKAGE__;	2027	push @{"$pkg\::ISA"}, __PACKAGE__;
1261		2028
1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2029	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1263	}	2030	}
1264		2031
1265	# also paths starting with '/'	2032	# also paths starting with '/'
1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2033	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1267		2034
1268	sub thawer_merge {	2035	sub thawer_merge {
1269	my ($self, $merge) = @_;	2036	my ($self, $merge) = @_;
1270		2037
1271	# we have to keep some variables in memory intact	2038	# we have to keep some variables in memory intact
1272	local $self->{path};	2039	local $self->{path};
1273	local $self->{load_path};	2040	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		2041
1277	$self->SUPER::thawer_merge ($merge);	2042	$self->SUPER::thawer_merge ($merge);
1278	}	2043	}
1279		2044
1280	sub normalise {	2045	sub normalise {
1281	my ($path, $base) = @_;	2046	my ($path, $base) = @_;
1282		2047
1283	$path = "$path"; # make sure its a string	2048	$path = "$path"; # make sure it's a string
1284		2049
1285	$path =~ s/\.map$//;	2050	$path =~ s/\.map$//;
1286		2051
1287	# map plan:	2052	# map plan:
1288	#	2053	#
…		…
1303	$base =~ s{[^/]+/?$}{};	2068	$base =~ s{[^/]+/?$}{};
1304	$path = "$base/$path";	2069	$path = "$base/$path";
1305	}	2070	}
1306		2071
1307	for ($path) {	2072	for ($path) {
1308	redo if s{//}{/};
1309	redo if s{/\.?/}{/};	2073	redo if s{/\.?/}{/};
1310	redo if s{/[^/]+/\.\./}{/};	2074	redo if s{/[^/]+/\.\./}{/};
1311	}	2075	}
1312		2076
1313	$path	2077	$path
…		…
1327	$self->init; # pass $1 etc.	2091	$self->init; # pass $1 etc.
1328	return $self;	2092	return $self;
1329	}	2093	}
1330	}	2094	}
1331		2095
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	2096	Carp::cluck "unable to resolve path '$path' (base '$base')";
1333	()	2097	()
1334	}	2098	}
1335		2099
		2100	# may re-bless or do other evil things
1336	sub init {	2101	sub init {
1337	my ($self) = @_;	2102	my ($self) = @_;
1338		2103
1339	$self	2104	$self
1340	}	2105	}
…		…
1352		2117
1353	# the original (read-only) location	2118	# the original (read-only) location
1354	sub load_path {	2119	sub load_path {
1355	my ($self) = @_;	2120	my ($self) = @_;
1356		2121
1357	"$MAPDIR($self->{path}"	2122	"$MAPDIR/$self->{path}.map"
1358	}	2123	}
1359		2124
1360	# the temporary/swap location	2125	# the temporary/swap location
1361	sub save_path {	2126	sub save_path {
1362	my ($self) = @_;	2127	my ($self) = @_;
1363		2128
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2129	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path"	2130	"$TMPDIR/$path.map"
1366	}	2131	}
1367		2132
1368	# the unique path, undef == no special unique path	2133	# the unique path, undef == no special unique path
1369	sub uniq_path {	2134	sub uniq_path {
1370	my ($self) = @_;	2135	my ($self) = @_;
1371		2136
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2137	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	2138	"$UNIQUEDIR/$path"
1374	}	2139	}
1375		2140
1376	# and all this just because we cannot iterate over	2141	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	2142	my ($self) = @_;
1380		2143
1381	$_->change_map_light ($change)	2144	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	2145
		2146	$self->do_decay_objects;
1383	}	2147	}
1384		2148
1385	sub unlink_save {	2149	sub unlink_save {
1386	my ($self) = @_;	2150	my ($self) = @_;
1387		2151
…		…
1392		2156
1393	sub load_header_from($) {	2157	sub load_header_from($) {
1394	my ($self, $path) = @_;	2158	my ($self, $path) = @_;
1395		2159
1396	utf8::encode $path;	2160	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	2161	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	2162	or return;
1402		2163
		2164	$self->_load_header ($f)
		2165	or return;
		2166
		2167	local $MAP_LOADING{$self->{path}} = $self;
		2168	$f->resolve_delayed_derefs;
		2169
1403	$self->{load_path} = $path;	2170	$self->{load_path} = $path;
1404		2171
1405	1	2172	1
1406	}	2173	}
1407		2174
		2175	# used to laod the header of an original map
1408	sub load_header_orig {	2176	sub load_header_orig {
1409	my ($self) = @_;	2177	my ($self) = @_;
1410		2178
1411	$self->load_header_from ($self->load_path)	2179	$self->load_header_from ($self->load_path)
1412	}	2180	}
1413		2181
		2182	# used to laod the header of an instantiated map
1414	sub load_header_temp {	2183	sub load_header_temp {
1415	my ($self) = @_;	2184	my ($self) = @_;
1416		2185
1417	$self->load_header_from ($self->save_path)	2186	$self->load_header_from ($self->save_path)
1418	}	2187	}
1419		2188
		2189	# called after loading the header from an instantiated map
1420	sub prepare_temp {	2190	sub prepare_temp {
1421	my ($self) = @_;	2191	my ($self) = @_;
1422		2192
1423	$self->last_access ((delete $self->{last_access})	2193	$self->last_access ((delete $self->{last_access})
1424	|| $cf::RUNTIME); #d#	2194	|| $cf::RUNTIME); #d#
1425	# safety	2195	# safety
1426	$self->{instantiate_time} = $cf::RUNTIME	2196	$self->{instantiate_time} = $cf::RUNTIME
1427	if $self->{instantiate_time} > $cf::RUNTIME;	2197	if $self->{instantiate_time} > $cf::RUNTIME;
1428	}	2198	}
1429		2199
		2200	# called after loading the header from an original map
1430	sub prepare_orig {	2201	sub prepare_orig {
1431	my ($self) = @_;	2202	my ($self) = @_;
1432		2203
1433	$self->{load_original} = 1;	2204	$self->{load_original} = 1;
1434	$self->{instantiate_time} = $cf::RUNTIME;	2205	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1445	$self->load_header_orig	2216	$self->load_header_orig
1446	or return;	2217	or return;
1447	$self->prepare_orig;	2218	$self->prepare_orig;
1448	}	2219	}
1449		2220
		2221	$self->{deny_reset} = 1
		2222	if $self->no_reset;
		2223
1450	$self->default_region (cf::region::find_by_path $self->{path})	2224	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	2225	unless $self->default_region;
1452		2226
1453	1	2227	1
1454	}	2228	}
1455		2229
1456	sub find;	2230	sub find;
1457	sub find {	2231	sub find {
1458	my ($path, $origin) = @_;	2232	my ($path, $origin) = @_;
1459		2233
		2234	cf::cede_to_tick;
		2235
1460	$path = normalise $path, $origin && $origin->path;	2236	$path = normalise $path, $origin;
1461		2237
		2238	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	2239	my $guard2 = cf::lock_acquire "map_find:$path";
1463		2240
1464	$cf::MAP{$path} || do {	2241	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	2242	my $map = new_from_path cf::map $path
1467	or return;	2243	or return;
1468		2244
1469	$map->{last_save} = $cf::RUNTIME;	2245	$map->{last_save} = $cf::RUNTIME;
1470		2246
1471	$map->load_header	2247	$map->load_header
1472	or return;	2248	or return;
1473		2249
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2250	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	2251	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	2252	#$cf::WAIT_FOR_TICK->wait;
		2253	undef $guard2;
		2254	undef $guard1;
1477	$map->reset;	2255	$map->reset;
1478	undef $guard;
1479	return find $path;	2256	return find $path;
1480	}	2257	}
1481		2258
1482	$cf::MAP{$path} = $map	2259	$cf::MAP{$path} = $map
1483	}	2260	}
1484	}	2261	}
1485		2262
1486	sub pre_load { }	2263	sub pre_load { }
1487	sub post_load { }	2264	#sub post_load { } # XS
1488		2265
1489	sub load {	2266	sub load {
1490	my ($self) = @_;	2267	my ($self) = @_;
1491		2268
1492	local $self->{deny_reset} = 1; # loading can take a long time	2269	local $self->{deny_reset} = 1; # loading can take a long time
1493		2270
1494	my $path = $self->{path};	2271	my $path = $self->{path};
		2272
		2273	{
1495	my $guard = cf::lock_acquire "map_load:$path";	2274	my $guard = cf::lock_acquire "map_data:$path";
1496		2275
1497	return if $self->in_memory != cf::MAP_SWAPPED;	2276	return unless $self->valid;
		2277	return unless $self->state == cf::MAP_SWAPPED;
1498		2278
1499	$self->in_memory (cf::MAP_LOADING);
1500
1501	$self->alloc;	2279	$self->alloc;
1502		2280
1503	$self->pre_load;	2281	$self->pre_load;
1504	Coro::cede;	2282	cf::cede_to_tick;
1505		2283
1506	$self->_load_objects ($self->{load_path}, 1)	2284	if (exists $self->{load_path}) {
		2285	my $f = new_from_file cf::object::thawer $self->{load_path};
		2286	$f->skip_block;
		2287	$self->_load_objects ($f)
1507	or return;	2288	or return;
1508		2289
1509	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2290	$self->post_load_original
1510	if delete $self->{load_original};	2291	if delete $self->{load_original};
1511		2292
1512	if (my $uniq = $self->uniq_path) {	2293	if (my $uniq = $self->uniq_path) {
1513	utf8::encode $uniq;	2294	utf8::encode $uniq;
1514	if (aio_open $uniq, O_RDONLY, 0) {	2295	unless (aio_stat $uniq) {
		2296	if (my $f = new_from_file cf::object::thawer $uniq) {
1515	$self->clear_unique_items;	2297	$self->clear_unique_items;
1516	$self->_load_objects ($uniq, 0);	2298	$self->_load_objects ($f);
		2299	$f->resolve_delayed_derefs;
		2300	}
		2301	}
1517	}	2302	}
1518	}
1519		2303
1520	Coro::cede;	2304	$f->resolve_delayed_derefs;
		2305	} else {
		2306	$self->post_load_original
		2307	if delete $self->{load_original};
		2308	}
		2309
		2310	$self->state (cf::MAP_INACTIVE);
		2311
		2312	cf::cede_to_tick;
1521	# now do the right thing for maps	2313	# now do the right thing for maps
1522	$self->link_multipart_objects;	2314	$self->link_multipart_objects;
1523	Coro::cede;
1524
1525	unless ($self->{deny_activate}) {
1526	$self->decay_objects;
1527	$self->fix_auto_apply;
1528	$self->update_buttons;
1529	Coro::cede;
1530	$self->set_darkness_map;
1531	$self->difficulty ($self->estimate_difficulty)	2315	$self->difficulty ($self->estimate_difficulty)
1532	unless $self->difficulty;	2316	unless $self->difficulty;
1533	Coro::cede;	2317	cf::cede_to_tick;
1534	$self->activate;	2318
1535	Coro::cede;	2319	unless ($self->{deny_activate}) {
		2320	$self->decay_objects;
		2321	$self->fix_auto_apply;
		2322	$self->update_buttons;
		2323	cf::cede_to_tick;
		2324	#$self->activate; # no longer activate maps automatically
		2325	}
		2326
		2327	$self->{last_save} = $cf::RUNTIME;
		2328	$self->last_access ($cf::RUNTIME);
1536	}	2329	}
1537		2330
1538	$self->post_load;	2331	$self->post_load;
1539	Coro::cede;
1540		2332
1541	$self->in_memory (cf::MAP_IN_MEMORY);	2333	1
1542	}	2334	}
1543		2335
		2336	# customize the map for a given player, i.e.
		2337	# return the _real_ map. used by e.g. per-player
		2338	# maps to change the path to ~playername/mappath
1544	sub customise_for {	2339	sub customise_for {
1545	my ($self, $ob) = @_;	2340	my ($self, $ob) = @_;
1546		2341
1547	return find "~" . $ob->name . "/" . $self->{path}	2342	return find "~" . $ob->name . "/" . $self->{path}
1548	if $self->per_player;	2343	if $self->per_player;
1549		2344
		2345	# return find "?party/" . $ob->name . "/" . $self->{path}
		2346	# if $self->per_party;
		2347
1550	$self	2348	$self
1551	}
1552
1553	# find and load all maps in the 3x3 area around a map
1554	sub load_diag {
1555	my ($map) = @_;
1556
1557	my @diag; # diagonal neighbours
1558
1559	for (0 .. 3) {
1560	my $neigh = $map->tile_path ($_)
1561	or next;
1562	$neigh = find $neigh, $map
1563	or next;
1564	$neigh->load;
1565
1566	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1567	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1568	}
1569
1570	for (@diag) {
1571	my $neigh = find @$_
1572	or next;
1573	$neigh->load;
1574	}
1575	}	2349	}
1576		2350
1577	sub find_sync {	2351	sub find_sync {
1578	my ($path, $origin) = @_;	2352	my ($path, $origin) = @_;
1579		2353
1580	cf::sync_job { find $path, $origin }	2354	# it's a bug to call this from the main context
		2355	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2356	if $Coro::current == $Coro::main;
		2357
		2358	find $path, $origin
1581	}	2359	}
1582		2360
1583	sub do_load_sync {	2361	sub do_load_sync {
1584	my ($map) = @_;	2362	my ($map) = @_;
1585		2363
1586	cf::sync_job { $map->load };	2364	# it's a bug to call this from the main context
		2365	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2366	if $Coro::current == $Coro::main;
		2367
		2368	$map->load;
1587	}	2369	}
1588		2370
1589	our %MAP_PREFETCH;	2371	our %MAP_PREFETCH;
1590	our $MAP_PREFETCHER = undef;	2372	our $MAP_PREFETCHER = undef;
1591		2373
1592	sub find_async {	2374	sub find_async {
1593	my ($path, $origin) = @_;	2375	my ($path, $origin, $load) = @_;
1594		2376
1595	$path = normalise $path, $origin && $origin->{path};	2377	$path = normalise $path, $origin;
1596		2378
1597	if (my $map = $cf::MAP{$path}) {	2379	if (my $map = $cf::MAP{$path}) {
1598	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2380	return $map if !$load || $map->linkable;
1599	}	2381	}
1600		2382
1601	undef $MAP_PREFETCH{$path};	2383	$MAP_PREFETCH{$path} |= $load;
		2384
1602	$MAP_PREFETCHER ||= cf::async {	2385	$MAP_PREFETCHER ||= cf::async {
		2386	$Coro::current->{desc} = "map prefetcher";
		2387
1603	while (%MAP_PREFETCH) {	2388	while (%MAP_PREFETCH) {
1604	for my $path (keys %MAP_PREFETCH) {	2389	while (my ($k, $v) = each %MAP_PREFETCH) {
1605	my $map = find $path	2390	if (my $map = find $k) {
1606	or next;
1607	$map->load;	2391	$map->load if $v;
		2392	}
1608		2393
1609	delete $MAP_PREFETCH{$path};	2394	delete $MAP_PREFETCH{$k};
1610	}	2395	}
1611	}	2396	}
1612	undef $MAP_PREFETCHER;	2397	undef $MAP_PREFETCHER;
1613	};	2398	};
1614	$MAP_PREFETCHER->prio (6);	2399	$MAP_PREFETCHER->prio (6);
1615		2400
1616	()	2401	()
1617	}	2402	}
1618		2403
		2404	# common code, used by both ->save and ->swapout
1619	sub save {	2405	sub _save {
1620	my ($self) = @_;	2406	my ($self) = @_;
1621
1622	my $lock = cf::lock_acquire "map_data:" . $self->path;
1623		2407
1624	$self->{last_save} = $cf::RUNTIME;	2408	$self->{last_save} = $cf::RUNTIME;
1625		2409
1626	return unless $self->dirty;	2410	return unless $self->dirty;
1627		2411
…		…
1633	return if $self->{deny_save};	2417	return if $self->{deny_save};
1634		2418
1635	local $self->{last_access} = $self->last_access;#d#	2419	local $self->{last_access} = $self->last_access;#d#
1636		2420
1637	cf::async {	2421	cf::async {
		2422	$Coro::current->{desc} = "map player save";
1638	$_->contr->save for $self->players;	2423	$_->contr->save for $self->players;
1639	};	2424	};
		2425
		2426	cf::get_slot 0.02;
1640		2427
1641	if ($uniq) {	2428	if ($uniq) {
1642	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2429	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1643	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2430	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1644	} else {	2431	} else {
1645	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2432	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1646	}	2433	}
1647	}	2434	}
1648		2435
		2436	sub save {
		2437	my ($self) = @_;
		2438
		2439	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2440
		2441	$self->_save;
		2442	}
		2443
1649	sub swap_out {	2444	sub swap_out {
1650	my ($self) = @_;	2445	my ($self) = @_;
1651		2446
1652	# save first because save cedes
1653	$self->save;
1654
1655	my $lock = cf::lock_acquire "map_data:" . $self->path;	2447	my $lock = cf::lock_acquire "map_data:$self->{path}";
1656		2448
		2449	return if !$self->linkable;
		2450	return if $self->{deny_save};
1657	return if $self->players;	2451	return if $self->players;
1658	return if $self->in_memory != cf::MAP_IN_MEMORY;
1659	return if $self->{deny_save};
1660		2452
		2453	# first deactivate the map and "unlink" it from the core
		2454	$self->deactivate;
		2455	$_->clear_links_to ($self) for values %cf::MAP;
		2456	$self->state (cf::MAP_SWAPPED);
		2457
		2458	# then atomically save
		2459	$self->_save;
		2460
		2461	# then free the map
1661	$self->clear;	2462	$self->clear;
1662	$self->in_memory (cf::MAP_SWAPPED);
1663	}	2463	}
1664		2464
1665	sub reset_at {	2465	sub reset_at {
1666	my ($self) = @_;	2466	my ($self) = @_;
1667		2467
1668	# TODO: safety, remove and allow resettable per-player maps	2468	# TODO: safety, remove and allow resettable per-player maps
1669	return 1e99 if $self->isa ("ext::map_per_player");#d#
1670	return 1e99 if $self->{deny_reset};	2469	return 1e99 if $self->{deny_reset};
1671		2470
1672	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2471	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1673	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2472	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1674		2473
…		…
1685	my ($self) = @_;	2484	my ($self) = @_;
1686		2485
1687	my $lock = cf::lock_acquire "map_data:$self->{path}";	2486	my $lock = cf::lock_acquire "map_data:$self->{path}";
1688		2487
1689	return if $self->players;	2488	return if $self->players;
1690	return if $self->isa ("ext::map_per_player");#d#
1691		2489
1692	warn "resetting map ", $self->path;#d#	2490	cf::trace "resetting map ", $self->path, "\n";
1693		2491
1694	$self->in_memory (cf::MAP_SWAPPED);	2492	$self->state (cf::MAP_SWAPPED);
1695		2493
1696	# need to save uniques path	2494	# need to save uniques path
1697	unless ($self->{deny_save}) {	2495	unless ($self->{deny_save}) {
1698	my $uniq = $self->uniq_path; utf8::encode $uniq;	2496	my $uniq = $self->uniq_path; utf8::encode $uniq;
1699		2497
…		…
1701	if $uniq;	2499	if $uniq;
1702	}	2500	}
1703		2501
1704	delete $cf::MAP{$self->path};	2502	delete $cf::MAP{$self->path};
1705		2503
		2504	$self->deactivate;
		2505	$_->clear_links_to ($self) for values %cf::MAP;
1706	$self->clear;	2506	$self->clear;
1707
1708	$_->clear_links_to ($self) for values %cf::MAP;
1709		2507
1710	$self->unlink_save;	2508	$self->unlink_save;
1711	$self->destroy;	2509	$self->destroy;
1712	}	2510	}
1713		2511
1714	my $nuke_counter = "aaaa";	2512	my $nuke_counter = "aaaa";
1715		2513
1716	sub nuke {	2514	sub nuke {
1717	my ($self) = @_;	2515	my ($self) = @_;
1718		2516
		2517	{
		2518	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2519
1719	delete $cf::MAP{$self->path};	2520	delete $cf::MAP{$self->path};
1720		2521
1721	$self->unlink_save;	2522	$self->unlink_save;
1722		2523
1723	bless $self, "cf::map";	2524	bless $self, "cf::map::wrap";
1724	delete $self->{deny_reset};	2525	delete $self->{deny_reset};
1725	$self->{deny_save} = 1;	2526	$self->{deny_save} = 1;
1726	$self->reset_timeout (1);	2527	$self->reset_timeout (1);
1727	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2528	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1728		2529
1729	$cf::MAP{$self->path} = $self;	2530	$cf::MAP{$self->path} = $self;
		2531	}
1730		2532
1731	$self->reset; # polite request, might not happen	2533	$self->reset; # polite request, might not happen
		2534	}
		2535
		2536	=item $maps = cf::map::tmp_maps
		2537
		2538	Returns an arrayref with all map paths of currently instantiated and saved
		2539	maps. May block.
		2540
		2541	=cut
		2542
		2543	sub tmp_maps() {
		2544	[
		2545	map {
		2546	utf8::decode $_;
		2547	/\.map$/
		2548	? normalise $_
		2549	: ()
		2550	} @{ aio_readdir $TMPDIR or [] }
		2551	]
		2552	}
		2553
		2554	=item $maps = cf::map::random_maps
		2555
		2556	Returns an arrayref with all map paths of currently instantiated and saved
		2557	random maps. May block.
		2558
		2559	=cut
		2560
		2561	sub random_maps() {
		2562	[
		2563	map {
		2564	utf8::decode $_;
		2565	/\.map$/
		2566	? normalise "?random/$_"
		2567	: ()
		2568	} @{ aio_readdir $RANDOMDIR or [] }
		2569	]
1732	}	2570	}
1733		2571
1734	=item cf::map::unique_maps	2572	=item cf::map::unique_maps
1735		2573
1736	Returns an arrayref of paths of all shared maps that have	2574	Returns an arrayref of paths of all shared maps that have
1737	instantiated unique items. May block.	2575	instantiated unique items. May block.
1738		2576
1739	=cut	2577	=cut
1740		2578
1741	sub unique_maps() {	2579	sub unique_maps() {
1742	my $files = aio_readdir $UNIQUEDIR	2580	[
1743	or return;	2581	map {
1744
1745	my @paths;
1746
1747	for (@$files) {
1748	utf8::decode $_;	2582	utf8::decode $_;
1749	next if /\.pst$/;	2583	s/\.map$//; # TODO future compatibility hack
1750	next unless /^$PATH_SEP/o;	2584	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1751		2585	? ()
1752	push @paths, cf::map::normalise $_;	2586	: normalise $_
		2587	} @{ aio_readdir $UNIQUEDIR or [] }
1753	}	2588	]
1754
1755	\@paths
1756	}	2589	}
1757		2590
1758	package cf;	2591	=item cf::map::static_maps
		2592
		2593	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2594	file in the shared directory excluding F</styles> and F</editor>). May
		2595	block.
		2596
		2597	=cut
		2598
		2599	sub static_maps() {
		2600	my @dirs = "";
		2601	my @maps;
		2602
		2603	while (@dirs) {
		2604	my $dir = shift @dirs;
		2605
		2606	next if $dir eq "/styles" || $dir eq "/editor";
		2607
		2608	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2609	or return;
		2610
		2611	for (@$files) {
		2612	s/\.map$// or next;
		2613	utf8::decode $_;
		2614	push @maps, "$dir/$_";
		2615	}
		2616
		2617	push @dirs, map "$dir/$_", @$dirs;
		2618	}
		2619
		2620	\@maps
		2621	}
1759		2622
1760	=back	2623	=back
1761		2624
1762	=head3 cf::object	2625	=head3 cf::object
1763		2626
…		…
1767		2630
1768	=over 4	2631	=over 4
1769		2632
1770	=item $ob->inv_recursive	2633	=item $ob->inv_recursive
1771		2634
1772	Returns the inventory of the object _and_ their inventories, recursively.	2635	Returns the inventory of the object I<and> their inventories, recursively,
		2636	but I<not> the object itself.
1773		2637
1774	=cut	2638	=cut
1775		2639
1776	sub inv_recursive_;	2640	sub inv_recursive_;
1777	sub inv_recursive_ {	2641	sub inv_recursive_ {
…		…
1780		2644
1781	sub inv_recursive {	2645	sub inv_recursive {
1782	inv_recursive_ inv $_[0]	2646	inv_recursive_ inv $_[0]
1783	}	2647	}
1784		2648
		2649	=item $ref = $ob->ref
		2650
		2651	Creates and returns a persistent reference to an object that can be stored as a string.
		2652
		2653	=item $ob = cf::object::deref ($refstring)
		2654
		2655	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2656	even if the object actually exists. May block.
		2657
		2658	=cut
		2659
		2660	sub deref {
		2661	my ($ref) = @_;
		2662
		2663	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2664	my ($uuid, $name) = ($1, $2);
		2665	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2666	or return;
		2667	$pl->ob->uuid eq $uuid
		2668	or return;
		2669
		2670	$pl->ob
		2671	} else {
		2672	warn "$ref: cannot resolve object reference\n";
		2673	undef
		2674	}
		2675	}
		2676
1785	package cf;	2677	package cf;
1786		2678
1787	=back	2679	=back
1788		2680
1789	=head3 cf::object::player	2681	=head3 cf::object::player
…		…
1795	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2687	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1796	can be C<undef>. Does the right thing when the player is currently in a	2688	can be C<undef>. Does the right thing when the player is currently in a
1797	dialogue with the given NPC character.	2689	dialogue with the given NPC character.
1798		2690
1799	=cut	2691	=cut
		2692
		2693	our $SAY_CHANNEL = {
		2694	id => "say",
		2695	title => "Map",
		2696	reply => "say ",
		2697	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2698	};
		2699
		2700	our $CHAT_CHANNEL = {
		2701	id => "chat",
		2702	title => "Chat",
		2703	reply => "chat ",
		2704	tooltip => "Player chat and shouts, global to the server.",
		2705	};
1800		2706
1801	# rough implementation of a future "reply" method that works	2707	# rough implementation of a future "reply" method that works
1802	# with dialog boxes.	2708	# with dialog boxes.
1803	#TODO: the first argument must go, split into a $npc->reply_to ( method	2709	#TODO: the first argument must go, split into a $npc->reply_to ( method
1804	sub cf::object::player::reply($$$;$) {	2710	sub cf::object::player::reply($$$;$) {
…		…
1806		2712
1807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2713	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1808		2714
1809	if ($self->{record_replies}) {	2715	if ($self->{record_replies}) {
1810	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2716	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2717
1811	} else {	2718	} else {
		2719	my $pl = $self->contr;
		2720
		2721	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2722	my $dialog = $pl->{npc_dialog};
		2723	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2724
		2725	} else {
1812	$msg = $npc->name . " says: $msg" if $npc;	2726	$msg = $npc->name . " says: $msg" if $npc;
1813	$self->message ($msg, $flags);	2727	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2728	}
1814	}	2729	}
		2730	}
		2731
		2732	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2733
		2734	=cut
		2735
		2736	sub cf::object::send_msg {
		2737	my $pl = shift->contr
		2738	or return;
		2739	$pl->send_msg (@_);
1815	}	2740	}
1816		2741
1817	=item $player_object->may ("access")	2742	=item $player_object->may ("access")
1818		2743
1819	Returns wether the given player is authorized to access resource "access"	2744	Returns wether the given player is authorized to access resource "access"
…		…
1832		2757
1833	=item $player_object->enter_link	2758	=item $player_object->enter_link
1834		2759
1835	Freezes the player and moves him/her to a special map (C<{link}>).	2760	Freezes the player and moves him/her to a special map (C<{link}>).
1836		2761
1837	The player should be reasonably safe there for short amounts of time. You	2762	The player should be reasonably safe there for short amounts of time (e.g.
1838	I<MUST> call C<leave_link> as soon as possible, though.	2763	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2764	though, as the player cannot control the character while it is on the link
		2765	map.
1839		2766
1840	Will never block.	2767	Will never block.
1841		2768
1842	=item $player_object->leave_link ($map, $x, $y)	2769	=item $player_object->leave_link ($map, $x, $y)
1843		2770
…		…
1863	sub cf::object::player::enter_link {	2790	sub cf::object::player::enter_link {
1864	my ($self) = @_;	2791	my ($self) = @_;
1865		2792
1866	$self->deactivate_recursive;	2793	$self->deactivate_recursive;
1867		2794
		2795	++$self->{_link_recursion};
		2796
1868	return if UNIVERSAL::isa $self->map, "ext::map_link";	2797	return if UNIVERSAL::isa $self->map, "ext::map_link";
1869		2798
1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2799	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1871	if $self->map;	2800	if $self->map && $self->map->{path} ne "{link}";
1872		2801
1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2802	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1874	}	2803	}
1875		2804
1876	sub cf::object::player::leave_link {	2805	sub cf::object::player::leave_link {
1877	my ($self, $map, $x, $y) = @_;	2806	my ($self, $map, $x, $y) = @_;
		2807
		2808	return unless $self->contr->active;
1878		2809
1879	my $link_pos = delete $self->{_link_pos};	2810	my $link_pos = delete $self->{_link_pos};
1880		2811
1881	unless ($map) {	2812	unless ($map) {
1882	# restore original map position	2813	# restore original map position
…		…
1893	($x, $y) = (-1, -1)	2824	($x, $y) = (-1, -1)
1894	unless (defined $x) && (defined $y);	2825	unless (defined $x) && (defined $y);
1895		2826
1896	# use -1 or undef as default coordinates, not 0, 0	2827	# use -1 or undef as default coordinates, not 0, 0
1897	($x, $y) = ($map->enter_x, $map->enter_y)	2828	($x, $y) = ($map->enter_x, $map->enter_y)
1898	if $x <=0 && $y <= 0;	2829	if $x <= 0 && $y <= 0;
1899		2830
1900	$map->load;	2831	$map->load;
1901	$map->load_diag;
1902		2832
1903	return unless $self->contr->active;	2833	return unless $self->contr->active;
1904	$self->activate_recursive;
1905		2834
1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2835	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1907	$self->enter_map ($map, $x, $y);	2836	if ($self->enter_map ($map, $x, $y)) {
1908	}	2837	# entering was successful
1909		2838	delete $self->{_link_recursion};
1910	cf::player->attach (	2839	# only activate afterwards, to support waiting in hooks
1911	on_logout => sub {	2840	$self->activate_recursive;
1912	my ($pl) = @_;
1913
1914	# abort map switching before logout
1915	if ($pl->ob->{_link_pos}) {
1916	cf::sync_job {
1917	$pl->ob->leave_link
1918	};
1919	}
1920	},	2841	}
1921	on_login => sub {
1922	my ($pl) = @_;
1923		2842
1924	# try to abort aborted map switching on player login :)	2843	}
1925	# should happen only on crashes
1926	if ($pl->ob->{_link_pos}) {
1927	$pl->ob->enter_link;
1928	(async {
1929	$pl->ob->reply (undef,
1930	"There was an internal problem at your last logout, "
1931	. "the server will try to bring you to your intended destination in a second.",
1932	cf::NDI_RED);
1933	# we need this sleep as the login has a concurrent enter_exit running
1934	# and this sleep increases chances of the player not ending up in scorn
1935	Coro::Timer::sleep 1;
1936	$pl->ob->leave_link;
1937	})->prio (2);
1938	}
1939	},
1940	);
1941		2844
1942	=item $player_object->goto ($path, $x, $y)	2845	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1943		2846
		2847	Moves the player to the given map-path and coordinates by first freezing
		2848	her, loading and preparing them map, calling the provided $check callback
		2849	that has to return the map if sucecssful, and then unfreezes the player on
		2850	the new (success) or old (failed) map position. In either case, $done will
		2851	be called at the end of this process.
		2852
		2853	Note that $check will be called with a potentially non-loaded map, so if
		2854	it needs a loaded map it has to call C<< ->load >>.
		2855
1944	=cut	2856	=cut
		2857
		2858	our $GOTOGEN;
1945		2859
1946	sub cf::object::player::goto {	2860	sub cf::object::player::goto {
1947	my ($self, $path, $x, $y) = @_;	2861	my ($self, $path, $x, $y, $check, $done) = @_;
		2862
		2863	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2864	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2865	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2866	($path, $x, $y) = @$EMERGENCY_POSITION;
		2867	}
		2868
		2869	# do generation counting so two concurrent goto's will be executed in-order
		2870	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1948		2871
1949	$self->enter_link;	2872	$self->enter_link;
1950		2873
1951	(async {	2874	(async {
		2875	$Coro::current->{desc} = "player::goto $path $x $y";
		2876
		2877	# *tag paths override both path and x|y
		2878	if ($path =~ /^\*(.*)$/) {
		2879	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2880	my $ob = $obs[rand @obs];
		2881
		2882	# see if we actually can go there
		2883	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2884	$ob = $obs[rand @obs];
		2885	} else {
		2886	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
		2888	# else put us there anyways for now #d#
		2889
		2890	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2891	} else {
		2892	($path, $x, $y) = (undef, undef, undef);
		2893	}
		2894	}
		2895
1952	my $map = eval {	2896	my $map = eval {
1953	my $map = cf::map::find $path;	2897	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2898
		2899	if ($map) {
1954	$map = $map->customise_for ($self) if $map;	2900	$map = $map->customise_for ($self);
		2901	$map = $check->($map, $x, $y, $self) if $check && $map;
		2902	} else {
		2903	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2904	}
		2905
1955	$map	2906	$map
		2907	};
		2908
		2909	if ($@) {
		2910	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2911	LOG llevError | logBacktrace, Carp::longmess $@;
1956	} or	2912	}
1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1958		2913
		2914	if ($gen == $self->{_goto_generation}) {
		2915	delete $self->{_goto_generation};
1959	$self->leave_link ($map, $x, $y);	2916	$self->leave_link ($map, $x, $y);
		2917	}
		2918
		2919	$done->($self) if $done;
1960	})->prio (1);	2920	})->prio (1);
1961	}	2921	}
1962		2922
1963	=item $player_object->enter_exit ($exit_object)	2923	=item $player_object->enter_exit ($exit_object)
1964		2924
…		…
1984	}	2944	}
1985		2945
1986	sub prepare_random_map {	2946	sub prepare_random_map {
1987	my ($exit) = @_;	2947	my ($exit) = @_;
1988		2948
1989	my $guard = cf::lock_acquire "exit_prepare:$exit";
1990
1991	# all this does is basically replace the /! path by	2949	# all this does is basically replace the /! path by
1992	# a new random map path (?random/...) with a seed	2950	# a new random map path (?random/...) with a seed
1993	# that depends on the exit object	2951	# that depends on the exit object
1994		2952
1995	my $rmp = parse_random_map_params $exit->msg;	2953	my $rmp = parse_random_map_params $exit->msg;
…		…
1997	if ($exit->map) {	2955	if ($exit->map) {
1998	$rmp->{region} = $exit->region->name;	2956	$rmp->{region} = $exit->region->name;
1999	$rmp->{origin_map} = $exit->map->path;	2957	$rmp->{origin_map} = $exit->map->path;
2000	$rmp->{origin_x} = $exit->x;	2958	$rmp->{origin_x} = $exit->x;
2001	$rmp->{origin_y} = $exit->y;	2959	$rmp->{origin_y} = $exit->y;
		2960
		2961	$exit->map->touch;
2002	}	2962	}
2003		2963
2004	$rmp->{random_seed} ||= $exit->random_seed;	2964	$rmp->{random_seed} ||= $exit->random_seed;
2005		2965
2006	my $data = cf::to_json $rmp;	2966	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2007	my $md5 = Digest::MD5::md5_hex $data;	2967	my $md5 = Digest::MD5::md5_hex $data;
2008	my $meta = "$RANDOMDIR/$md5.meta";	2968	my $meta = "$RANDOMDIR/$md5.meta";
2009		2969
2010	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2970	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2011	aio_write $fh, 0, (length $data), $data, 0;	2971	aio_write $fh, 0, (length $data), $data, 0;
2012	undef $fh;	2972	undef $fh;
2013	aio_rename "$meta~", $meta;	2973	aio_rename "$meta~", $meta;
2014		2974
		2975	my $slaying = "?random/$md5";
		2976
		2977	if ($exit->valid) {
2015	$exit->slaying ("?random/$md5");	2978	$exit->slaying ("?random/$md5");
2016	$exit->msg (undef);	2979	$exit->msg (undef);
		2980	}
2017	}	2981	}
2018	}	2982	}
2019		2983
2020	sub cf::object::player::enter_exit {	2984	sub cf::object::player::enter_exit {
2021	my ($self, $exit) = @_;	2985	my ($self, $exit) = @_;
2022		2986
2023	return unless $self->type == cf::PLAYER;	2987	return unless $self->type == cf::PLAYER;
2024		2988
2025	if ($exit->slaying eq "/!") {
2026	#TODO: this should de-fi-ni-te-ly not be a sync-job
2027	# the problem is that $exit might not survive long enough
2028	# so it needs to be done right now, right here
2029	cf::sync_job { prepare_random_map $exit };
2030	}
2031
2032	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2033	my $hp = $exit->stats->hp;
2034	my $sp = $exit->stats->sp;
2035
2036	$self->enter_link;	2989	$self->enter_link;
2037		2990
2038	(async {	2991	(async {
2039	$self->deactivate_recursive; # just to be sure	2992	$Coro::current->{desc} = "enter_exit";
		2993
2040	unless (eval {	2994	unless (eval {
		2995	$self->deactivate_recursive; # just to be sure
		2996
		2997	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2998	my $x = $exit->stats->hp;
		2999	my $y = $exit->stats->sp;
		3000
		3001	# special map handling
		3002	my $slaying = $exit->slaying;
		3003
		3004	# special map handling
		3005	if ($slaying eq "/!") {
		3006	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3007
		3008	prepare_random_map $exit
		3009	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3010
		3011	$map = $exit->slaying;
		3012
		3013	} elsif ($slaying eq '!up') {
		3014	$map = $exit->map->tile_path (cf::TILE_UP);
		3015	$x = $exit->x;
		3016	$y = $exit->y;
		3017
		3018	} elsif ($slaying eq '!down') {
		3019	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3020	$x = $exit->x;
		3021	$y = $exit->y;
		3022	}
		3023
2041	$self->goto ($slaying, $hp, $sp);	3024	$self->goto ($map, $x, $y);
2042		3025
		3026	# if exit is damned, update players death & WoR home-position
		3027	$self->contr->savebed ($map, $x, $y)
		3028	if $exit->flag (cf::FLAG_DAMNED);
		3029
2043	1;	3030	1
2044	}) {	3031	}) {
2045	$self->message ("Something went wrong deep within the crossfire server. "	3032	$self->message ("Something went wrong deep within the deliantra server. "
2046	. "I'll try to bring you back to the map you were before. "	3033	. "I'll try to bring you back to the map you were before. "
2047	. "Please report this to the dungeon master!",	3034	. "Please report this to the dungeon master!",
2048	cf::NDI_UNIQUE | cf::NDI_RED);	3035	cf::NDI_UNIQUE | cf::NDI_RED);
2049		3036
2050	warn "ERROR in enter_exit: $@";	3037	error "ERROR in enter_exit: $@";
2051	$self->leave_link;	3038	$self->leave_link;
2052	}	3039	}
2053	})->prio (1);	3040	})->prio (1);
2054	}	3041	}
2055		3042
…		…
2069		3056
2070	utf8::encode $text;	3057	utf8::encode $text;
2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3058	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2072	}	3059	}
2073		3060
		3061	=item $client->send_big_packet ($pkt)
		3062
		3063	Like C<send_packet>, but tries to compress large packets, and fragments
		3064	them as required.
		3065
		3066	=cut
		3067
		3068	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3069
		3070	sub cf::client::send_big_packet {
		3071	my ($self, $pkt) = @_;
		3072
		3073	# try lzf for large packets
		3074	$pkt = "lzf " . Compress::LZF::compress $pkt
		3075	if 1024 <= length $pkt and $self->{can_lzf};
		3076
		3077	# split very large packets
		3078	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3079	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3080	$pkt = "frag";
		3081	}
		3082
		3083	$self->send_packet ($pkt);
		3084	}
		3085
		3086	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3087
		3088	Send a drawinfo or msg packet to the client, formatting the msg for the
		3089	client if neccessary. C<$type> should be a string identifying the type of
		3090	the message, with C<log> being the default. If C<$color> is negative, suppress
		3091	the message unless the client supports the msg packet.
		3092
		3093	=cut
		3094
		3095	# non-persistent channels (usually the info channel)
		3096	our %CHANNEL = (
		3097	"c/motd" => {
		3098	id => "infobox",
		3099	title => "MOTD",
		3100	reply => undef,
		3101	tooltip => "The message of the day",
		3102	},
		3103	"c/identify" => {
		3104	id => "infobox",
		3105	title => "Identify",
		3106	reply => undef,
		3107	tooltip => "Items recently identified",
		3108	},
		3109	"c/examine" => {
		3110	id => "infobox",
		3111	title => "Examine",
		3112	reply => undef,
		3113	tooltip => "Signs and other items you examined",
		3114	},
		3115	"c/shopinfo" => {
		3116	id => "infobox",
		3117	title => "Shop Info",
		3118	reply => undef,
		3119	tooltip => "What your bargaining skill tells you about the shop",
		3120	},
		3121	"c/book" => {
		3122	id => "infobox",
		3123	title => "Book",
		3124	reply => undef,
		3125	tooltip => "The contents of a note or book",
		3126	},
		3127	"c/lookat" => {
		3128	id => "infobox",
		3129	title => "Look",
		3130	reply => undef,
		3131	tooltip => "What you saw there",
		3132	},
		3133	"c/who" => {
		3134	id => "infobox",
		3135	title => "Players",
		3136	reply => undef,
		3137	tooltip => "Shows players who are currently online",
		3138	},
		3139	"c/body" => {
		3140	id => "infobox",
		3141	title => "Body Parts",
		3142	reply => undef,
		3143	tooltip => "Shows which body parts you posess and are available",
		3144	},
		3145	"c/statistics" => {
		3146	id => "infobox",
		3147	title => "Statistics",
		3148	reply => undef,
		3149	tooltip => "Shows your primary statistics",
		3150	},
		3151	"c/skills" => {
		3152	id => "infobox",
		3153	title => "Skills",
		3154	reply => undef,
		3155	tooltip => "Shows your experience per skill and item power",
		3156	},
		3157	"c/shopitems" => {
		3158	id => "infobox",
		3159	title => "Shop Items",
		3160	reply => undef,
		3161	tooltip => "Shows the items currently for sale in this shop",
		3162	},
		3163	"c/resistances" => {
		3164	id => "infobox",
		3165	title => "Resistances",
		3166	reply => undef,
		3167	tooltip => "Shows your resistances",
		3168	},
		3169	"c/pets" => {
		3170	id => "infobox",
		3171	title => "Pets",
		3172	reply => undef,
		3173	tooltip => "Shows information abotu your pets/a specific pet",
		3174	},
		3175	"c/perceiveself" => {
		3176	id => "infobox",
		3177	title => "Perceive Self",
		3178	reply => undef,
		3179	tooltip => "You gained detailed knowledge about yourself",
		3180	},
		3181	"c/uptime" => {
		3182	id => "infobox",
		3183	title => "Uptime",
		3184	reply => undef,
		3185	tooltip => "How long the server has been running since last restart",
		3186	},
		3187	"c/mapinfo" => {
		3188	id => "infobox",
		3189	title => "Map Info",
		3190	reply => undef,
		3191	tooltip => "Information related to the maps",
		3192	},
		3193	"c/party" => {
		3194	id => "party",
		3195	title => "Party",
		3196	reply => "gsay ",
		3197	tooltip => "Messages and chat related to your party",
		3198	},
		3199	"c/death" => {
		3200	id => "death",
		3201	title => "Death",
		3202	reply => undef,
		3203	tooltip => "Reason for and more info about your most recent death",
		3204	},
		3205	"c/say" => $SAY_CHANNEL,
		3206	"c/chat" => $CHAT_CHANNEL,
		3207	);
		3208
		3209	sub cf::client::send_msg {
		3210	my ($self, $channel, $msg, $color, @extra) = @_;
		3211
		3212	$msg = $self->pl->expand_cfpod ($msg)
		3213	unless $color & cf::NDI_VERBATIM;
		3214
		3215	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3216
		3217	# check predefined channels, for the benefit of C
		3218	if ($CHANNEL{$channel}) {
		3219	$channel = $CHANNEL{$channel};
		3220
		3221	$self->ext_msg (channel_info => $channel);
		3222	$channel = $channel->{id};
		3223
		3224	} elsif (ref $channel) {
		3225	# send meta info to client, if not yet sent
		3226	unless (exists $self->{channel}{$channel->{id}}) {
		3227	$self->{channel}{$channel->{id}} = $channel;
		3228	$self->ext_msg (channel_info => $channel);
		3229	}
		3230
		3231	$channel = $channel->{id};
		3232	}
		3233
		3234	return unless @extra || length $msg;
		3235
		3236	# default colour, mask it out
		3237	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3238	if $color & cf::NDI_DEF;
		3239
		3240	my $pkt = "msg "
		3241	. $self->{json_coder}->encode (
		3242	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3243	);
		3244
		3245	$self->send_big_packet ($pkt);
		3246	}
		3247
2074	=item $client->ext_event ($type, %msg)	3248	=item $client->ext_msg ($type, @msg)
2075		3249
2076	Sends an exti event to the client.	3250	Sends an ext event to the client.
2077		3251
2078	=cut	3252	=cut
2079		3253
2080	sub cf::client::ext_event($$%) {	3254	sub cf::client::ext_msg($$@) {
2081	my ($self, $type, %msg) = @_;	3255	my ($self, $type, @msg) = @_;
2082		3256
2083	$msg{msgtype} = "event_$type";	3257	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2084	$self->send_packet ("ext " . cf::to_json \%msg);
2085	}	3258	}
2086		3259
2087	=item $success = $client->query ($flags, "text", \&cb)	3260	=item $success = $client->query ($flags, "text", \&cb)
2088		3261
2089	Queues a query to the client, calling the given callback with	3262	Queues a query to the client, calling the given callback with
2090	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3263	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2091	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3264	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2092		3265
2093	Queries can fail, so check the return code. Or don't, as queries will become	3266	Queries can fail, so check the return code. Or don't, as queries will
2094	reliable at some point in the future.	3267	become reliable at some point in the future.
2095		3268
2096	=cut	3269	=cut
2097		3270
2098	sub cf::client::query {	3271	sub cf::client::query {
2099	my ($self, $flags, $text, $cb) = @_;	3272	my ($self, $flags, $text, $cb) = @_;
…		…
2107	utf8::encode $text;	3280	utf8::encode $text;
2108	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3281	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2109		3282
2110	$self->send_packet ($self->{query_queue}[0][0])	3283	$self->send_packet ($self->{query_queue}[0][0])
2111	if @{ $self->{query_queue} } == 1;	3284	if @{ $self->{query_queue} } == 1;
		3285
		3286	1
2112	}	3287	}
2113		3288
2114	cf::client->attach (	3289	cf::client->attach (
		3290	on_connect => sub {
		3291	my ($ns) = @_;
		3292
		3293	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3294	},
2115	on_reply => sub {	3295	on_reply => sub {
2116	my ($ns, $msg) = @_;	3296	my ($ns, $msg) = @_;
2117		3297
2118	# this weird shuffling is so that direct followup queries	3298	# this weird shuffling is so that direct followup queries
2119	# get handled first	3299	# get handled first
…		…
2131	} else {	3311	} else {
2132	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3312	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2133	}	3313	}
2134	}	3314	}
2135	},	3315	},
		3316	on_exticmd => sub {
		3317	my ($ns, $buf) = @_;
		3318
		3319	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3320
		3321	if (ref $msg) {
		3322	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3323
		3324	if (my $cb = $EXTIACMD{$type}) {
		3325	$cb->(
		3326	$ns,
		3327	sub {
		3328	$ns->ext_msg ("reply-$reply", @_)
		3329	if $reply;
		3330	},
		3331	@payload
		3332	);
		3333	} else {
		3334	my @reply;
		3335
		3336	if (my $cb = $EXTICMD{$type}) {
		3337	@reply = $cb->($ns, @payload);
		3338	}
		3339
		3340	$ns->ext_msg ("reply-$reply", @reply)
		3341	if $reply;
		3342	}
		3343	} else {
		3344	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3345	}
		3346
		3347	cf::override;
		3348	},
2136	);	3349	);
2137		3350
2138	=item $client->async (\&cb)	3351	=item $client->async (\&cb)
2139		3352
2140	Create a new coroutine, running the specified callback. The coroutine will	3353	Create a new coroutine, running the specified callback. The coroutine will
…		…
2156		3369
2157	$coro	3370	$coro
2158	}	3371	}
2159		3372
2160	cf::client->attach (	3373	cf::client->attach (
2161	on_destroy => sub {	3374	on_client_destroy => sub {
2162	my ($ns) = @_;	3375	my ($ns) = @_;
2163		3376
2164	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3377	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2165	},	3378	},
2166	);	3379	);
…		…
2181	our $safe = new Safe "safe";	3394	our $safe = new Safe "safe";
2182	our $safe_hole = new Safe::Hole;	3395	our $safe_hole = new Safe::Hole;
2183		3396
2184	$SIG{FPE} = 'IGNORE';	3397	$SIG{FPE} = 'IGNORE';
2185		3398
2186	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3399	$safe->permit_only (Opcode::opset qw(
		3400	:base_core :base_mem :base_orig :base_math :base_loop
		3401	grepstart grepwhile mapstart mapwhile
		3402	sort time
		3403	));
2187		3404
2188	# here we export the classes and methods available to script code	3405	# here we export the classes and methods available to script code
2189		3406
2190	=pod	3407	=pod
2191		3408
2192	The following functions and methods are available within a safe environment:	3409	The following functions and methods are available within a safe environment:
2193		3410
2194	cf::object contr pay_amount pay_player map	3411	cf::object
		3412	contr pay_amount pay_player map x y force_find force_add destroy
		3413	insert remove name archname title slaying race decrease split
		3414	value
		3415
2195	cf::object::player player	3416	cf::object::player
2196	cf::player peaceful	3417	player
2197	cf::map trigger	3418
		3419	cf::player
		3420	peaceful
		3421
		3422	cf::map
		3423	trigger
2198		3424
2199	=cut	3425	=cut
2200		3426
2201	for (	3427	for (
2202	["cf::object" => qw(contr pay_amount pay_player map)],	3428	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3429	insert remove inv nrof name archname title slaying race
		3430	decrease split destroy change_exp value msg lore send_msg)],
2203	["cf::object::player" => qw(player)],	3431	["cf::object::player" => qw(player)],
2204	["cf::player" => qw(peaceful)],	3432	["cf::player" => qw(peaceful send_msg)],
2205	["cf::map" => qw(trigger)],	3433	["cf::map" => qw(trigger)],
2206	) {	3434	) {
2207	no strict 'refs';
2208	my ($pkg, @funs) = @$_;	3435	my ($pkg, @funs) = @$_;
2209	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3436	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2210	for @funs;	3437	for @funs;
2211	}	3438	}
2212		3439
…		…
2227		3454
2228	my $qcode = $code;	3455	my $qcode = $code;
2229	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3456	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2230	$qcode =~ s/\n/\\n/g;	3457	$qcode =~ s/\n/\\n/g;
2231		3458
		3459	%vars = (_dummy => 0) unless %vars;
		3460
		3461	my @res;
2232	local $_;	3462	local $_;
2233	local @safe::cf::_safe_eval_args = values %vars;
2234		3463
2235	my $eval =	3464	my $eval =
2236	"do {\n"	3465	"do {\n"
2237	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3466	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2238	. "#line 0 \"{$qcode}\"\n"	3467	. "#line 0 \"{$qcode}\"\n"
2239	. $code	3468	. $code
2240	. "\n}"	3469	. "\n}"
2241	;	3470	;
2242		3471
		3472	if ($CFG{safe_eval}) {
2243	sub_generation_inc;	3473	sub_generation_inc;
		3474	local @safe::cf::_safe_eval_args = values %vars;
2244	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3475	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2245	sub_generation_inc;	3476	sub_generation_inc;
		3477	} else {
		3478	local @cf::_safe_eval_args = values %vars;
		3479	@res = wantarray ? eval eval : scalar eval $eval;
		3480	}
2246		3481
2247	if ($@) {	3482	if ($@) {
2248	warn "$@";	3483	warn "$@",
2249	warn "while executing safe code '$code'\n";	3484	"while executing safe code '$code'\n",
2250	warn "with arguments " . (join " ", %vars) . "\n";	3485	"with arguments " . (join " ", %vars) . "\n";
2251	}	3486	}
2252		3487
2253	wantarray ? @res : $res[0]	3488	wantarray ? @res : $res[0]
2254	}	3489	}
2255		3490
…		…
2269	=cut	3504	=cut
2270		3505
2271	sub register_script_function {	3506	sub register_script_function {
2272	my ($fun, $cb) = @_;	3507	my ($fun, $cb) = @_;
2273		3508
2274	no strict 'refs';	3509	$fun = "safe::$fun" if $CFG{safe_eval};
2275	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3510	*$fun = $safe_hole->wrap ($cb);
2276	}	3511	}
2277		3512
2278	=back	3513	=back
2279		3514
2280	=cut	3515	=cut
2281
2282	#############################################################################
2283
2284	=head2 EXTENSION DATABASE SUPPORT
2285
2286	Crossfire maintains a very simple database for extension use. It can
2287	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2288	convert to/from binary).
2289
2290	The parameter C<$family> should best start with the name of the extension
2291	using it, it should be unique.
2292
2293	=over 4
2294
2295	=item $value = cf::db_get $family => $key
2296
2297	Returns a single value from the database.
2298
2299	=item cf::db_put $family => $key => $value
2300
2301	Stores the given C<$value> in the family.
2302
2303	=cut
2304
2305	our $DB;
2306
2307	sub db_init {
2308	unless ($DB) {
2309	$DB = BDB::db_create $DB_ENV;
2310
2311	cf::sync_job {
2312	eval {
2313	$DB->set_flags (BDB::CHKSUM);
2314
2315	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2316	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2317	cf::cleanup "db_open(db): $!" if $!;
2318	};
2319	cf::cleanup "db_open(db): $@" if $@;
2320	};
2321	}
2322	}
2323
2324	sub db_get($$) {
2325	my $key = "$_[0]/$_[1]";
2326
2327	cf::sync_job {
2328	BDB::db_get $DB, undef, $key, my $data;
2329
2330	$! ? ()
2331	: $data
2332	}
2333	}
2334
2335	sub db_put($$$) {
2336	BDB::dbreq_pri 4;
2337	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2338	}
2339
2340	=item cf::cache $id => [$paths...], $processversion => $process
2341
2342	Generic caching function that returns the value of the resource $id,
2343	caching and regenerating as required.
2344
2345	This function can block.
2346
2347	=cut
2348
2349	sub cache {
2350	my ($id, $src, $processversion, $process) = @_;
2351
2352	my $meta =
2353	join "\x00",
2354	$processversion,
2355	map {
2356	aio_stat $_
2357	and Carp::croak "$_: $!";
2358
2359	($_, (stat _)[7,9])
2360	} @$src;
2361
2362	my $dbmeta = db_get cache => "$id/meta";
2363	if ($dbmeta ne $meta) {
2364	# changed, we may need to process
2365
2366	my @data;
2367	my $md5;
2368
2369	for (0 .. $#$src) {
2370	0 <= aio_load $src->[$_], $data[$_]
2371	or Carp::croak "$src->[$_]: $!";
2372	}
2373
2374	# if processing is expensive, check
2375	# checksum first
2376	if (1) {
2377	$md5 =
2378	join "\x00",
2379	$processversion,
2380	map {
2381	Coro::cede;
2382	($src->[$_], Digest::MD5::md5_hex $data[$_])
2383	} 0.. $#$src;
2384
2385
2386	my $dbmd5 = db_get cache => "$id/md5";
2387	if ($dbmd5 eq $md5) {
2388	db_put cache => "$id/meta", $meta;
2389
2390	return db_get cache => "$id/data";
2391	}
2392	}
2393
2394	my $t1 = Time::HiRes::time;
2395	my $data = $process->(\@data);
2396	my $t2 = Time::HiRes::time;
2397
2398	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2399
2400	db_put cache => "$id/data", $data;
2401	db_put cache => "$id/md5" , $md5;
2402	db_put cache => "$id/meta", $meta;
2403
2404	return $data;
2405	}
2406
2407	db_get cache => "$id/data"
2408	}
2409
2410	=item fork_call { }, $args
2411
2412	Executes the given code block with the given arguments in a seperate
2413	process, returning the results. Everything must be serialisable with
2414	Coro::Storable. May, of course, block. Note that the executed sub may
2415	never block itself or use any form of Event handling.
2416
2417	=cut
2418
2419	sub fork_call(&@) {
2420	my ($cb, @args) = @_;
2421
2422	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2423	# or die "socketpair: $!";
2424	pipe my $fh1, my $fh2
2425	or die "pipe: $!";
2426
2427	if (my $pid = fork) {
2428	close $fh2;
2429
2430	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2431	$res = Coro::Storable::thaw $res;
2432
2433	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2434
2435	die $$res unless "ARRAY" eq ref $res;
2436
2437	return wantarray ? @$res : $res->[-1];
2438	} else {
2439	local $SIG{__WARN__};
2440	eval {
2441	local $SIG{__DIE__};
2442	close $fh1;
2443
2444	my @res = eval { $cb->(@args) };
2445	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2446	};
2447
2448	warn $@ if $@;
2449	_exit 0;
2450	}
2451	}
2452
2453
2454		3516
2455	#############################################################################	3517	#############################################################################
2456	# the server's init and main functions	3518	# the server's init and main functions
2457		3519
		3520	{
		3521	package cf::face;
		3522
		3523	our %HASH; # hash => idx
		3524	our @DATA; # dynamically-created facedata, only faceste 0 used
		3525	our @FOFS; # file offset, if > 0
		3526	our @SIZE; # size of face, in octets
		3527	our @META; # meta hash of face, if any
		3528	our $DATAFH; # facedata filehandle
		3529
		3530	# internal api, not finalised
		3531	sub set {
		3532	my ($name, $type, $data) = @_;
		3533
		3534	my $idx = cf::face::find $name;
		3535
		3536	if ($idx) {
		3537	delete $HASH{cf::face::get_chksum $idx};
		3538	} else {
		3539	$idx = cf::face::alloc $name;
		3540	}
		3541
		3542	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3543
		3544	cf::face::set_type $idx, $type;
		3545	cf::face::set_csum $idx, 0, $hash;
		3546
		3547	# we need to destroy the SV itself, not just modify it, as a running ix
		3548	# might hold a reference to it: "delete" achieves that.
		3549	delete $FOFS[0][$idx];
		3550	delete $DATA[0][$idx];
		3551	$DATA[0][$idx] = $data;
		3552	$SIZE[0][$idx] = length $data;
		3553	delete $META[$idx];
		3554	$HASH{$hash} = $idx;#d#
		3555
		3556	$idx
		3557	}
		3558
		3559	sub _get_data($$$) {
		3560	my ($idx, $set, $cb) = @_;
		3561
		3562	if (defined $DATA[$set][$idx]) {
		3563	$cb->($DATA[$set][$idx]);
		3564	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3565	my $size = $SIZE[$set][$idx];
		3566	my $buf;
		3567	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3568	if ($_[0] == $size) {
		3569	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3570	$cb->($buf);
		3571	} else {
		3572	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3573	}
		3574	};
		3575	} else {
		3576	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3577	}
		3578	}
		3579
		3580	# rather ineffient
		3581	sub cf::face::get_data($;$) {
		3582	my ($idx, $set) = @_;
		3583
		3584	_get_data $idx, $set, Coro::rouse_cb;
		3585	Coro::rouse_wait
		3586	}
		3587
		3588	sub cf::face::ix {
		3589	my ($ns, $set, $idx, $pri) = @_;
		3590
		3591	_get_data $idx, $set, sub {
		3592	$ns->ix_send ($idx, $pri, $_[0]);
		3593	};
		3594	}
		3595	}
		3596
2458	sub load_facedata($) {	3597	sub load_facedata($) {
2459	my ($path) = @_;	3598	my ($path) = @_;
2460		3599
		3600	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3601
2461	warn "loading facedata from $path\n";	3602	trace "loading facedata from $path\n";
2462		3603
2463	my $facedata;	3604	my $facedata = decode_storable load_file "$path/faceinfo";
2464	0 < aio_load $path, $facedata
2465	or die "$path: $!";
2466
2467	$facedata = Coro::Storable::thaw $facedata;
2468		3605
2469	$facedata->{version} == 2	3606	$facedata->{version} == 2
2470	or cf::cleanup "$path: version mismatch, cannot proceed.";	3607	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3608
		3609	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3610	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3611
		3612	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3613
		3614	# BEGIN ATOMIC
		3615	# from here on, everything must be atomic - no thread switch allowed
		3616	my $t1 = EV::time;
2471		3617
2472	{	3618	{
2473	my $faces = $facedata->{faceinfo};	3619	my $faces = $facedata->{faceinfo};
2474		3620
2475	while (my ($face, $info) = each %$faces) {	3621	for my $face (sort keys %$faces) {
		3622	my $info = $faces->{$face};
2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3623	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3624
2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3625	cf::face::set_visibility $idx, $info->{visibility};
2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3626	cf::face::set_magicmap $idx, $info->{magicmap};
2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3627	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
2480	Coro::cede;	3628	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3629	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3630	$cf::face::HASH{$info->{hash64}} = $idx;
		3631	delete $cf::face::META[$idx];
2481	}	3632	}
2482		3633
2483	while (my ($face, $info) = each %$faces) {	3634	while (my ($face, $info) = each %$faces) {
2484	next unless $info->{smooth};	3635	next unless $info->{smooth};
		3636
2485	my $idx = cf::face::find $face	3637	my $idx = cf::face::find $face
2486	or next;	3638	or next;
		3639
2487	if (my $smooth = cf::face::find $info->{smooth}) {	3640	if (my $smooth = cf::face::find $info->{smooth}) {
		3641	cf::face::set_smooth $idx, $smooth;
2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3642	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2489	} else {	3643	} else {
2490	warn "smooth face '$info->{smooth}' not found for face '$face'";	3644	error "smooth face '$info->{smooth}' not found for face '$face'";
2491	}	3645	}
2492	Coro::cede;
2493	}	3646	}
2494	}	3647	}
2495		3648
2496	{	3649	{
2497	my $anims = $facedata->{animinfo};	3650	my $anims = $facedata->{animinfo};
2498		3651
2499	while (my ($anim, $info) = each %$anims) {	3652	while (my ($anim, $info) = each %$anims) {
2500	cf::anim::set $anim, $info->{frames}, $info->{facings};	3653	cf::anim::set $anim, $info->{frames}, $info->{facings};
2501	Coro::cede;
2502	}	3654	}
2503		3655
2504	cf::anim::invalidate_all; # d'oh	3656	cf::anim::invalidate_all; # d'oh
2505	}	3657	}
2506		3658
		3659	{
		3660	my $res = $facedata->{resource};
		3661
		3662	while (my ($name, $info) = each %$res) {
		3663	if (defined (my $type = $info->{type})) {
		3664	# TODO: different hash - must free and use new index, or cache ixface data queue
		3665	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3666
		3667	cf::face::set_type $idx, $type;
		3668	cf::face::set_csum $idx, 0, $info->{hash};
		3669	$cf::face::SIZE[0][$idx] = $info->{size};
		3670	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3671	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3672	$cf::face::HASH{$info->{hash}} = $idx;
		3673	} else {
		3674	# $RESOURCE{$name} = $info; # unused
		3675	}
		3676	}
		3677	}
		3678
		3679	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3680
		3681	# HACK to clear player env face cache, we need some signal framework
		3682	# for this (global event?)
		3683	%ext::player_env::MUSIC_FACE_CACHE = ();
		3684
		3685	# END ATOMIC
		3686
		3687	cf::debug "facedata atomic update time ", EV::time - $t1;
		3688
		3689	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3690
		3691	aio_close $fh if $fh; # close old facedata
		3692
2507	1	3693	1
2508	}	3694	}
2509		3695
		3696	register_exticmd fx_want => sub {
		3697	my ($ns, $want) = @_;
		3698
		3699	while (my ($k, $v) = each %$want) {
		3700	$ns->fx_want ($k, $v);
		3701	}
		3702	};
		3703
		3704	sub load_resource_file($) {
		3705	my $guard = lock_acquire "load_resource_file";
		3706
		3707	my $status = load_resource_file_ $_[0];
		3708	get_slot 0.1, 100;
		3709	cf::arch::commit_load;
		3710
		3711	$status
		3712	}
		3713
		3714	sub reload_exp_table {
		3715	_reload_exp_table;
		3716
		3717	cf::face::set
		3718	"res/exp_table" => FT_RSRC,
		3719	JSON::XS->new->utf8->canonical->encode (
		3720	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3721	);
		3722	}
		3723
		3724	sub reload_materials {
		3725	_reload_materials;
		3726	}
		3727
2510	sub reload_regions {	3728	sub reload_regions {
		3729	# HACK to clear player env face cache, we need some signal framework
		3730	# for this (global event?)
		3731	%ext::player_env::MUSIC_FACE_CACHE = ();
		3732
2511	load_resource_file "$MAPDIR/regions"	3733	load_resource_file "$MAPDIR/regions"
2512	or die "unable to load regions file\n";	3734	or die "unable to load regions file\n";
		3735
		3736	for (cf::region::list) {
		3737	$_->{match} = qr/$_->{match}/
		3738	if exists $_->{match};
		3739	}
2513	}	3740	}
2514		3741
2515	sub reload_facedata {	3742	sub reload_facedata {
2516	load_facedata "$DATADIR/facedata"	3743	load_facedata $DATADIR
2517	or die "unable to load facedata\n";	3744	or die "unable to load facedata\n";
2518	}	3745	}
2519		3746
2520	sub reload_archetypes {	3747	sub reload_archetypes {
2521	load_resource_file "$DATADIR/archetypes"	3748	load_resource_file "$DATADIR/archetypes"
2522	or die "unable to load archetypes\n";	3749	or die "unable to load archetypes\n";
		3750
		3751	cf::face::set
		3752	"res/skill_info" => FT_RSRC,
		3753	JSON::XS->new->utf8->canonical->encode (
		3754	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3755	);
		3756
		3757	cf::face::set
		3758	"res/spell_paths" => FT_RSRC,
		3759	JSON::XS->new->utf8->canonical->encode (
		3760	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3761	);
2523	}	3762	}
2524		3763
2525	sub reload_treasures {	3764	sub reload_treasures {
2526	load_resource_file "$DATADIR/treasures"	3765	load_resource_file "$DATADIR/treasures"
2527	or die "unable to load treasurelists\n";	3766	or die "unable to load treasurelists\n";
2528	}	3767	}
2529		3768
		3769	sub reload_sound {
		3770	trace "loading sound config from $DATADIR/sound\n";
		3771
		3772	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3773
		3774	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3775	my $sound = $soundconf->{compat}[$_]
		3776	or next;
		3777
		3778	my $face = cf::face::find "sound/$sound->[1]";
		3779	cf::sound::set $sound->[0] => $face;
		3780	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3781	}
		3782
		3783	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3784	my $face = cf::face::find "sound/$v";
		3785	cf::sound::set $k => $face;
		3786	}
		3787	}
		3788
2530	sub reload_resources {	3789	sub reload_resources {
2531	warn "reloading resource files...\n";	3790	trace "reloading resource files...\n";
2532		3791
		3792	reload_materials;
		3793	reload_facedata;
		3794	reload_exp_table;
		3795	reload_sound;
		3796	reload_archetypes;
2533	reload_regions;	3797	reload_regions;
2534	reload_facedata;
2535	reload_archetypes;
2536	reload_treasures;	3798	reload_treasures;
2537		3799
2538	warn "finished reloading resource files\n";	3800	trace "finished reloading resource files\n";
2539	}	3801	}
2540		3802
2541	sub init {	3803	sub reload_config {
2542	reload_resources;	3804	trace "reloading config file...\n";
2543	}
2544		3805
2545	sub cfg_load {	3806	my $config = load_file "$CONFDIR/config";
2546	open my $fh, "<:utf8", "$CONFDIR/config"	3807	utf8::decode $config;
2547	or return;	3808	*CFG = decode_yaml $config;
2548		3809
2549	local $/;
2550	*CFG = YAML::Syck::Load <$fh>;
2551
2552	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3810	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2553		3811
2554	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3812	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2555	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3813	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2556		3814
2557	if (exists $CFG{mlockall}) {	3815	if (exists $CFG{mlockall}) {
…		…
2561	};	3819	};
2562	warn $@ if $@;	3820	warn $@ if $@;
2563	}	3821	}
2564	}	3822	}
2565		3823
		3824	sub pidfile() {
		3825	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3826	or die "$PIDFILE: $!";
		3827	flock $fh, &Fcntl::LOCK_EX
		3828	or die "$PIDFILE: flock: $!";
		3829	$fh
		3830	}
		3831
		3832	# make sure only one server instance is running at any one time
		3833	sub atomic {
		3834	my $fh = pidfile;
		3835
		3836	my $pid = <$fh>;
		3837	kill 9, $pid if $pid > 0;
		3838
		3839	seek $fh, 0, 0;
		3840	print $fh $$;
		3841	}
		3842
		3843	sub main_loop {
		3844	trace "EV::loop starting\n";
		3845	if (1) {
		3846	EV::loop;
		3847	}
		3848	trace "EV::loop returned\n";
		3849	goto &main_loop unless $REALLY_UNLOOP;
		3850	}
		3851
2566	sub main {	3852	sub main {
		3853	cf::init_globals; # initialise logging
		3854
		3855	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3856	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3857	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3858	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3859
		3860	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3861
2567	# we must not ever block the main coroutine	3862	# we must not ever block the main coroutine
2568	local $Coro::idle = sub {	3863	$Coro::idle = sub {
2569	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3864	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2570	(async {	3865	(async {
2571	Event::one_event;	3866	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3867	EV::loop EV::LOOP_ONESHOT;
2572	})->prio (Coro::PRIO_MAX);	3868	})->prio (Coro::PRIO_MAX);
2573	};	3869	};
2574		3870
2575	cfg_load;	3871	evthread_start IO::AIO::poll_fileno;
		3872
		3873	cf::sync_job {
		3874	cf::incloader::init ();
		3875
2576	db_init;	3876	db_init;
		3877
		3878	cf::init_anim;
		3879	cf::init_attackmess;
		3880	cf::init_dynamic;
		3881
		3882	cf::load_settings;
		3883
		3884	reload_resources;
		3885	reload_config;
		3886
		3887	cf::init_uuid;
		3888	cf::init_signals;
		3889	cf::init_skills;
		3890
		3891	cf::init_beforeplay;
		3892
		3893	atomic;
		3894
2577	load_extensions;	3895	load_extensions;
2578		3896
2579	$TICK_WATCHER->start;	3897	utime time, time, $RUNTIMEFILE;
2580	Event::loop;	3898
		3899	# no (long-running) fork's whatsoever before this point(!)
		3900	use POSIX ();
		3901	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3902
		3903	cf::_post_init 0;
		3904	};
		3905
		3906	cf::object::thawer::errors_are_fatal 0;
		3907	info "parse errors in files are no longer fatal from this point on.\n";
		3908
		3909	AE::postpone {
		3910	undef &main; # free gobs of memory :)
		3911	};
		3912
		3913	goto &main_loop;
2581	}	3914	}
2582		3915
2583	#############################################################################	3916	#############################################################################
2584	# initialisation and cleanup	3917	# initialisation and cleanup
2585		3918
2586	# install some emergency cleanup handlers	3919	# install some emergency cleanup handlers
2587	BEGIN {	3920	BEGIN {
		3921	our %SIGWATCHER = ();
2588	for my $signal (qw(INT HUP TERM)) {	3922	for my $signal (qw(INT HUP TERM)) {
2589	Event->signal (	3923	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2590	reentrant => 0,
2591	data => WF_AUTOCANCEL,
2592	signal => $signal,
2593	prio => 0,
2594	cb => sub {
2595	cf::cleanup "SIG$signal";	3924	cf::cleanup "SIG$signal";
2596	},
2597	);	3925	};
		3926	}
		3927	}
		3928
		3929	sub write_runtime_sync {
		3930	my $t0 = AE::time;
		3931
		3932	# first touch the runtime file to show we are still running:
		3933	# the fsync below can take a very very long time.
		3934
		3935	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3936
		3937	my $guard = cf::lock_acquire "write_runtime";
		3938
		3939	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3940	or return;
		3941
		3942	my $value = $cf::RUNTIME + 90 + 10;
		3943	# 10 is the runtime save interval, for a monotonic clock
		3944	# 60 allows for the watchdog to kill the server.
		3945
		3946	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3947	and return;
		3948
		3949	# always fsync - this file is important
		3950	aio_fsync $fh
		3951	and return;
		3952
		3953	# touch it again to show we are up-to-date
		3954	aio_utime $fh, undef, undef;
		3955
		3956	close $fh
		3957	or return;
		3958
		3959	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3960	and return;
		3961
		3962	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3963
2598	}	3964	1
		3965	}
		3966
		3967	our $uuid_lock;
		3968	our $uuid_skip;
		3969
		3970	sub write_uuid_sync($) {
		3971	$uuid_skip ||= $_[0];
		3972
		3973	return if $uuid_lock;
		3974	local $uuid_lock = 1;
		3975
		3976	my $uuid = "$LOCALDIR/uuid";
		3977
		3978	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3979	or return;
		3980
		3981	my $value = uuid_seq uuid_cur;
		3982
		3983	unless ($value) {
		3984	info "cowardly refusing to write zero uuid value!\n";
		3985	return;
		3986	}
		3987
		3988	my $value = uuid_str $value + $uuid_skip;
		3989	$uuid_skip = 0;
		3990
		3991	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3992	and return;
		3993
		3994	# always fsync - this file is important
		3995	aio_fsync $fh
		3996	and return;
		3997
		3998	close $fh
		3999	or return;
		4000
		4001	aio_rename "$uuid~", $uuid
		4002	and return;
		4003
		4004	trace "uuid file written ($value).\n";
		4005
		4006	1
		4007
		4008	}
		4009
		4010	sub write_uuid($$) {
		4011	my ($skip, $sync) = @_;
		4012
		4013	$sync ? write_uuid_sync $skip
		4014	: async { write_uuid_sync $skip };
2599	}	4015	}
2600		4016
2601	sub emergency_save() {	4017	sub emergency_save() {
2602	my $freeze_guard = cf::freeze_mainloop;	4018	my $freeze_guard = cf::freeze_mainloop;
2603		4019
2604	warn "enter emergency perl save\n";	4020	info "emergency_perl_save: enter\n";
		4021
		4022	# this is a trade-off: we want to be very quick here, so
		4023	# save all maps without fsync, and later call a global sync
		4024	# (which in turn might be very very slow)
		4025	local $USE_FSYNC = 0;
2605		4026
2606	cf::sync_job {	4027	cf::sync_job {
		4028	cf::write_runtime_sync; # external watchdog should not bark
		4029
2607	# use a peculiar iteration method to avoid tripping on perl	4030	# use a peculiar iteration method to avoid tripping on perl
2608	# refcount bugs in for. also avoids problems with players	4031	# refcount bugs in for. also avoids problems with players
2609	# and maps saved/destroyed asynchronously.	4032	# and maps saved/destroyed asynchronously.
2610	warn "begin emergency player save\n";	4033	info "emergency_perl_save: begin player save\n";
2611	for my $login (keys %cf::PLAYER) {	4034	for my $login (keys %cf::PLAYER) {
2612	my $pl = $cf::PLAYER{$login} or next;	4035	my $pl = $cf::PLAYER{$login} or next;
2613	$pl->valid or next;	4036	$pl->valid or next;
		4037	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2614	$pl->save;	4038	$pl->save;
2615	}	4039	}
2616	warn "end emergency player save\n";	4040	info "emergency_perl_save: end player save\n";
2617		4041
2618	warn "begin emergency map save\n";	4042	cf::write_runtime_sync; # external watchdog should not bark
		4043
		4044	info "emergency_perl_save: begin map save\n";
2619	for my $path (keys %cf::MAP) {	4045	for my $path (keys %cf::MAP) {
2620	my $map = $cf::MAP{$path} or next;	4046	my $map = $cf::MAP{$path} or next;
2621	$map->valid or next;	4047	$map->valid or next;
2622	$map->save;	4048	$map->save;
2623	}	4049	}
2624	warn "end emergency map save\n";	4050	info "emergency_perl_save: end map save\n";
2625		4051
2626	warn "begin emergency database checkpoint\n";	4052	cf::write_runtime_sync; # external watchdog should not bark
		4053
		4054	info "emergency_perl_save: begin database checkpoint\n";
2627	BDB::db_env_txn_checkpoint $DB_ENV;	4055	BDB::db_env_txn_checkpoint $DB_ENV;
2628	warn "end emergency database checkpoint\n";	4056	info "emergency_perl_save: end database checkpoint\n";
		4057
		4058	info "emergency_perl_save: begin write uuid\n";
		4059	write_uuid_sync 1;
		4060	info "emergency_perl_save: end write uuid\n";
		4061
		4062	cf::write_runtime_sync; # external watchdog should not bark
		4063
		4064	trace "emergency_perl_save: syncing database to disk";
		4065	BDB::db_env_txn_checkpoint $DB_ENV;
		4066
		4067	info "emergency_perl_save: starting sync\n";
		4068	IO::AIO::aio_sync sub {
		4069	info "emergency_perl_save: finished sync\n";
		4070	};
		4071
		4072	cf::write_runtime_sync; # external watchdog should not bark
		4073
		4074	trace "emergency_perl_save: flushing outstanding aio requests";
		4075	while (IO::AIO::nreqs || BDB::nreqs) {
		4076	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4077	}
		4078
		4079	cf::write_runtime_sync; # external watchdog should not bark
2629	};	4080	};
2630		4081
2631	warn "leave emergency perl save\n";	4082	info "emergency_perl_save: leave\n";
2632	}	4083	}
2633		4084
2634	sub post_cleanup {	4085	sub post_cleanup {
2635	my ($make_core) = @_;	4086	my ($make_core) = @_;
2636		4087
		4088	IO::AIO::flush;
		4089
2637	warn Carp::longmess "post_cleanup backtrace"	4090	error Carp::longmess "post_cleanup backtrace"
2638	if $make_core;	4091	if $make_core;
		4092
		4093	my $fh = pidfile;
		4094	unlink $PIDFILE if <$fh> == $$;
		4095	}
		4096
		4097	# a safer delete_package, copied from Symbol
		4098	sub clear_package($) {
		4099	my $pkg = shift;
		4100
		4101	# expand to full symbol table name if needed
		4102	unless ($pkg =~ /^main::.*::$/) {
		4103	$pkg = "main$pkg" if $pkg =~ /^::/;
		4104	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4105	$pkg .= '::' unless $pkg =~ /::$/;
		4106	}
		4107
		4108	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4109	my $stem_symtab = *{$stem}{HASH};
		4110
		4111	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4112	or return;
		4113
		4114	# clear all symbols
		4115	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4116	for my $name (keys %$leaf_symtab) {
		4117	_gv_clear *{"$pkg$name"};
		4118	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4119	}
2639	}	4120	}
2640		4121
2641	sub do_reload_perl() {	4122	sub do_reload_perl() {
2642	# can/must only be called in main	4123	# can/must only be called in main
2643	if ($Coro::current != $Coro::main) {	4124	unless (in_main) {
2644	warn "can only reload from main coroutine";	4125	error "can only reload from main coroutine";
2645	return;	4126	return;
2646	}	4127	}
2647		4128
2648	warn "reloading...";	4129	return if $RELOAD++;
2649		4130
2650	warn "entering sync_job";	4131	my $t1 = AE::time;
2651		4132
		4133	while ($RELOAD) {
		4134	cf::get_slot 0.1, -1, "reload_perl";
		4135	info "perl_reload: reloading...";
		4136
		4137	trace "perl_reload: entering sync_job";
		4138
2652	cf::sync_job {	4139	cf::sync_job {
2653	cf::write_runtime; # external watchdog should not bark
2654	cf::emergency_save;	4140	#cf::emergency_save;
2655	cf::write_runtime; # external watchdog should not bark
2656		4141
2657	warn "syncing database to disk";
2658	BDB::db_env_txn_checkpoint $DB_ENV;
2659
2660	# if anything goes wrong in here, we should simply crash as we already saved
2661
2662	warn "cancelling all WF_AUTOCANCEL watchers";
2663	for (Event::all_watchers) {
2664	$_->cancel if $_->data & WF_AUTOCANCEL;
2665	}
2666
2667	warn "flushing outstanding aio requests";
2668	for (;;) {
2669	BDB::flush;
2670	IO::AIO::flush;
2671	Coro::cede;
2672	last unless IO::AIO::nreqs || BDB::nreqs;
2673	warn "iterate...";
2674	}
2675
2676	++$RELOAD;
2677
2678	warn "cancelling all extension coros";	4142	trace "perl_reload: cancelling all extension coros";
2679	$_->cancel for values %EXT_CORO;	4143	$_->cancel for values %EXT_CORO;
2680	%EXT_CORO = ();	4144	%EXT_CORO = ();
2681		4145
2682	warn "removing commands";	4146	trace "perl_reload: removing commands";
2683	%COMMAND = ();	4147	%COMMAND = ();
2684		4148
2685	warn "removing ext commands";	4149	trace "perl_reload: removing ext/exti commands";
2686	%EXTCMD = ();	4150	%EXTCMD = ();
		4151	%EXTICMD = ();
2687		4152
2688	warn "unloading/nuking all extensions";	4153	trace "perl_reload: unloading/nuking all extensions";
2689	for my $pkg (@EXTS) {	4154	for my $pkg (@EXTS) {
2690	warn "... unloading $pkg";	4155	trace "... unloading $pkg";
2691		4156
2692	if (my $cb = $pkg->can ("unload")) {	4157	if (my $cb = $pkg->can ("unload")) {
2693	eval {	4158	eval {
2694	$cb->($pkg);	4159	$cb->($pkg);
2695	1	4160	1
2696	} or warn "$pkg unloaded, but with errors: $@";	4161	} or error "$pkg unloaded, but with errors: $@";
		4162	}
		4163
		4164	trace "... clearing $pkg";
		4165	clear_package $pkg;
2697	}	4166	}
2698		4167
2699	warn "... nuking $pkg";
2700	Symbol::delete_package $pkg;
2701	}
2702
2703	warn "unloading all perl modules loaded from $LIBDIR";	4168	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2704	while (my ($k, $v) = each %INC) {	4169	while (my ($k, $v) = each %INC) {
2705	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4170	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2706		4171
2707	warn "... unloading $k";	4172	trace "... unloading $k";
2708	delete $INC{$k};	4173	delete $INC{$k};
2709		4174
2710	$k =~ s/\.pm$//;	4175	$k =~ s/\.pm$//;
2711	$k =~ s/\//::/g;	4176	$k =~ s/\//::/g;
2712		4177
2713	if (my $cb = $k->can ("unload_module")) {	4178	if (my $cb = $k->can ("unload_module")) {
2714	$cb->();	4179	$cb->();
		4180	}
		4181
		4182	clear_package $k;
2715	}	4183	}
2716		4184
2717	Symbol::delete_package $k;
2718	}
2719
2720	warn "getting rid of safe::, as good as possible";	4185	trace "perl_reload: getting rid of safe::, as good as possible";
2721	Symbol::delete_package "safe::$_"	4186	clear_package "safe::$_"
2722	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4187	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2723		4188
2724	warn "unloading cf.pm \"a bit\"";	4189	trace "perl_reload: unloading cf.pm \"a bit\"";
2725	delete $INC{"cf.pm"};	4190	delete $INC{"cf.pm"};
2726	delete $INC{"cf/pod.pm"};	4191	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2727		4192
2728	# don't, removes xs symbols, too,	4193	# don't, removes xs symbols, too,
2729	# and global variables created in xs	4194	# and global variables created in xs
2730	#Symbol::delete_package __PACKAGE__;	4195	#clear_package __PACKAGE__;
2731		4196
2732	warn "unload completed, starting to reload now";	4197	info "perl_reload: unload completed, starting to reload now";
2733		4198
2734	warn "reloading cf.pm";	4199	trace "perl_reload: reloading cf.pm";
2735	require cf;	4200	require cf;
2736	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4201	cf::_connect_to_perl_1;
2737		4202
2738	warn "loading config and database again";	4203	trace "perl_reload: loading config and database again";
2739	cf::cfg_load;	4204	cf::reload_config;
2740		4205
2741	warn "loading extensions";	4206	trace "perl_reload: loading extensions";
2742	cf::load_extensions;	4207	cf::load_extensions;
2743		4208
		4209	if ($REATTACH_ON_RELOAD) {
2744	warn "reattaching attachments to objects/players";	4210	trace "perl_reload: reattaching attachments to objects/players";
2745	_global_reattach; # objects, sockets	4211	_global_reattach; # objects, sockets
2746	warn "reattaching attachments to maps";	4212	trace "perl_reload: reattaching attachments to maps";
2747	reattach $_ for values %MAP;	4213	reattach $_ for values %MAP;
2748	warn "reattaching attachments to players";	4214	trace "perl_reload: reattaching attachments to players";
2749	reattach $_ for values %PLAYER;	4215	reattach $_ for values %PLAYER;
		4216	}
2750		4217
2751	warn "leaving sync_job";	4218	cf::_post_init 1;
2752		4219
		4220	trace "perl_reload: leaving sync_job";
		4221
2753	1	4222	1
2754	} or do {	4223	} or do {
2755	warn $@;	4224	error $@;
2756	warn "error while reloading, exiting.";	4225	cf::cleanup "perl_reload: error, exiting.";
2757	exit 1;	4226	};
		4227
		4228	--$RELOAD;
2758	};	4229	}
2759		4230
2760	warn "reloaded";	4231	$t1 = AE::time - $t1;
		4232	info "perl_reload: completed in ${t1}s\n";
2761	};	4233	};
2762		4234
2763	our $RELOAD_WATCHER; # used only during reload	4235	our $RELOAD_WATCHER; # used only during reload
2764		4236
2765	sub reload_perl() {	4237	sub reload_perl() {
2766	# doing reload synchronously and two reloads happen back-to-back,	4238	# doing reload synchronously and two reloads happen back-to-back,
2767	# coro crashes during coro_state_free->destroy here.	4239	# coro crashes during coro_state_free->destroy here.
2768		4240
2769	$RELOAD_WATCHER ||= Event->timer (	4241	$RELOAD_WATCHER ||= cf::async {
2770	reentrant => 0,	4242	Coro::AIO::aio_wait cache_extensions;
2771	after => 0,	4243
2772	data => WF_AUTOCANCEL,	4244	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2773	cb => sub {
2774	do_reload_perl;	4245	do_reload_perl;
2775	undef $RELOAD_WATCHER;	4246	undef $RELOAD_WATCHER;
2776	},	4247	};
2777	);	4248	};
2778	}	4249	}
2779		4250
2780	register_command "reload" => sub {	4251	register_command "reload" => sub {
2781	my ($who, $arg) = @_;	4252	my ($who, $arg) = @_;
2782		4253
2783	if ($who->flag (FLAG_WIZ)) {	4254	if ($who->flag (FLAG_WIZ)) {
2784	$who->message ("reloading server.");	4255	$who->message ("reloading server.");
		4256	async {
		4257	$Coro::current->{desc} = "perl_reload";
2785	async { reload_perl };	4258	reload_perl;
		4259	};
2786	}	4260	}
2787	};	4261	};
2788		4262
2789	unshift @INC, $LIBDIR;	4263	#############################################################################
2790		4264
2791	my $bug_warning = 0;	4265	my $bug_warning = 0;
2792		4266
2793	our @WAIT_FOR_TICK;
2794	our @WAIT_FOR_TICK_BEGIN;
2795
2796	sub wait_for_tick {	4267	sub wait_for_tick() {
2797	return unless $TICK_WATCHER->is_active;	4268	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2798	return if $Coro::current == $Coro::main;
2799		4269
2800	my $signal = new Coro::Signal;	4270	$WAIT_FOR_TICK->wait;
2801	push @WAIT_FOR_TICK, $signal;
2802	$signal->wait;
2803	}	4271	}
2804		4272
2805	sub wait_for_tick_begin {	4273	sub wait_for_tick_begin() {
2806	return unless $TICK_WATCHER->is_active;	4274	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2807	return if $Coro::current == $Coro::main;
2808		4275
2809	my $signal = new Coro::Signal;	4276	my $signal = new Coro::Signal;
2810	push @WAIT_FOR_TICK_BEGIN, $signal;	4277	push @WAIT_FOR_TICK_BEGIN, $signal;
2811	$signal->wait;	4278	$signal->wait;
2812	}	4279	}
2813		4280
2814	$TICK_WATCHER = Event->timer (	4281	sub tick {
2815	reentrant => 0,
2816	parked => 1,
2817	prio => 0,
2818	at => $NEXT_TICK || $TICK,
2819	data => WF_AUTOCANCEL,
2820	cb => sub {
2821	if ($Coro::current != $Coro::main) {	4282	if ($Coro::current != $Coro::main) {
2822	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4283	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2823	unless ++$bug_warning > 10;	4284	unless ++$bug_warning > 10;
2824	return;	4285	return;
2825	}	4286	}
2826		4287
2827	$NOW = Event::time;	4288	cf::one_tick; # one server iteration
2828		4289
2829	cf::server_tick; # one server iteration	4290	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2830		4291
2831	$RUNTIME += $TICK;
2832	$NEXT_TICK += $TICK;
2833
2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4292	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2835	$NEXT_RUNTIME_WRITE = $NOW + 10;	4293	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2836	Coro::async_pool {	4294	Coro::async_pool {
		4295	$Coro::current->{desc} = "runtime saver";
2837	write_runtime	4296	write_runtime_sync
2838	or warn "ERROR: unable to write runtime file: $!";	4297	or error "ERROR: unable to write runtime file: $!";
2839	};
2840	}	4298	};
		4299	}
2841		4300
2842	# my $AFTER = Event::time;
2843	# warn $AFTER - $NOW;#d#
2844
2845	# if we are delayed by four ticks or more, skip them all
2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2847
2848	$TICK_WATCHER->at ($NEXT_TICK);
2849	$TICK_WATCHER->start;
2850
2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4301	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2852	$sig->send;	4302	$sig->send;
2853	}
2854	while (my $sig = shift @WAIT_FOR_TICK) {
2855	$sig->send;
2856	}
2857
2858	_post_tick;
2859	},	4303	}
2860	);	4304	$WAIT_FOR_TICK->broadcast;
		4305
		4306	$LOAD = ($NOW - $TICK_START) / $TICK;
		4307	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4308
		4309	if (0) {
		4310	if ($NEXT_TICK) {
		4311	my $jitter = $TICK_START - $NEXT_TICK;
		4312	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4313	debug "jitter $JITTER\n";#d#
		4314	}
		4315	}
		4316	}
2861		4317
2862	{	4318	{
2863	BDB::max_poll_time $TICK * 0.1;	4319	# configure BDB
2864	$BDB_POLL_WATCHER = Event->io (	4320	info "initialising database";
2865	reentrant => 0,	4321
2866	fd => BDB::poll_fileno,
2867	poll => 'r',
2868	prio => 0,
2869	data => WF_AUTOCANCEL,
2870	cb => \&BDB::poll_cb,
2871	);
2872	BDB::min_parallel 8;	4322	BDB::min_parallel 16;
2873		4323	BDB::max_poll_reqs $TICK * 0.1;
2874	BDB::set_sync_prepare {	4324	#$AnyEvent::BDB::WATCHER->priority (1);
2875	my $status;
2876	my $current = $Coro::current;
2877	(
2878	sub {
2879	$status = $!;
2880	$current->ready; undef $current;
2881	},
2882	sub {
2883	Coro::schedule while defined $current;
2884	$! = $status;
2885	},
2886	)
2887	};
2888		4325
2889	unless ($DB_ENV) {	4326	unless ($DB_ENV) {
2890	$DB_ENV = BDB::db_env_create;	4327	$DB_ENV = BDB::db_env_create;
		4328	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4329	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4330	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4331	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4332	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2891		4333
2892	cf::sync_job {	4334	cf::sync_job {
2893	eval {	4335	eval {
2894	BDB::db_env_open	4336	BDB::db_env_open
2895	$DB_ENV,	4337	$DB_ENV,
…		…
2897	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4339	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2898	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4340	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2899	0666;	4341	0666;
2900		4342
2901	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4343	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2902
2903	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2904	$DB_ENV->set_lk_detect;
2905	};	4344	};
2906		4345
2907	cf::cleanup "db_env_open(db): $@" if $@;	4346	cf::cleanup "db_env_open(db): $@" if $@;
2908	};	4347	};
2909	}	4348	}
		4349
		4350	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4351	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4352	};
		4353	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4354	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4355	};
		4356	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4357	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4358	};
		4359
		4360	info "database initialised";
2910	}	4361	}
2911		4362
2912	{	4363	{
		4364	# configure IO::AIO
		4365
		4366	info "initialising aio";
2913	IO::AIO::min_parallel 8;	4367	IO::AIO::min_parallel 8;
2914
2915	undef $Coro::AIO::WATCHER;
2916	IO::AIO::max_poll_time $TICK * 0.1;	4368	IO::AIO::max_poll_time $TICK * 0.1;
2917	$AIO_POLL_WATCHER = Event->io (	4369	undef $AnyEvent::AIO::WATCHER;
2918	reentrant => 0,	4370	info "aio initialised";
2919	data => WF_AUTOCANCEL,	4371	}
2920	fd => IO::AIO::poll_fileno,	4372
2921	poll => 'r',	4373	our $_log_backtrace;
2922	prio => 6,	4374	our $_log_backtrace_last;
2923	cb => \&IO::AIO::poll_cb,	4375
2924	);	4376	sub _log_backtrace {
		4377	my ($msg, @addr) = @_;
		4378
		4379	$msg =~ s/\n$//;
		4380
		4381	if ($_log_backtrace_last eq $msg) {
		4382	LOG llevInfo, "[ABT] $msg\n";
		4383	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4384	# limit the # of concurrent backtraces
		4385	} elsif ($_log_backtrace < 2) {
		4386	$_log_backtrace_last = $msg;
		4387	++$_log_backtrace;
		4388	my $perl_bt = Carp::longmess $msg;
		4389	async {
		4390	$Coro::current->{desc} = "abt $msg";
		4391
		4392	my @bt = fork_call {
		4393	@addr = map { sprintf "%x", $_ } @addr;
		4394	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4395	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4396	or die "addr2line: $!";
		4397
		4398	my @funcs;
		4399	my @res = <$fh>;
		4400	chomp for @res;
		4401	while (@res) {
		4402	my ($func, $line) = splice @res, 0, 2, ();
		4403	push @funcs, "[$func] $line";
		4404	}
		4405
		4406	@funcs
		4407	};
		4408
		4409	LOG llevInfo, "[ABT] $perl_bt\n";
		4410	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4411	LOG llevInfo, "[ABT] $_\n" for @bt;
		4412	--$_log_backtrace;
		4413	};
		4414	} else {
		4415	LOG llevInfo, "[ABT] $msg\n";
		4416	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4417	}
2925	}	4418	}
2926		4419
2927	# load additional modules	4420	# load additional modules
2928	use cf::pod;	4421	require "cf/$_.pm" for @EXTRA_MODULES;
		4422	cf::_connect_to_perl_2;
2929		4423
2930	END { cf::emergency_save }	4424	END { cf::emergency_save }
2931		4425
2932	1	4426	1
2933		4427

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