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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC vs.
Revision 1.602 by root, Sun Nov 11 18:21:21 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
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	153	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	154	our $LOADAVG; # same thing, but with alpha-smoothing
		155	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	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 $WAIT_FOR_TICK = new Coro::Signal;
		164	our @WAIT_FOR_TICK_BEGIN;
98		165
99	binmode STDOUT;	166	binmode STDOUT;
100	binmode STDERR;	167	binmode STDERR;
101		168
102	# read virtual server time, if available	169	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	170	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	171	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	172	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	173	$RUNTIME = <$fh> + 0.;
107	}	174	}
		175
		176	eval "sub TICK() { $TICK } 1" or die;
108		177
109	mkdir $_	178	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	179	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		180
112	our $EMERGENCY_POSITION;	181	our $EMERGENCY_POSITION;
113		182
114	sub cf::map::normalise;	183	sub cf::map::normalise;
115		184
		185	sub in_main() {
		186	$Coro::current == $Coro::main
		187	}
		188
116	#############################################################################	189	#############################################################################
117		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
118	=head2 GLOBAL VARIABLES	202	=head2 GLOBAL VARIABLES
119		203
120	=over 4	204	=over 4
121		205
122	=item $cf::UPTIME	206	=item $cf::UPTIME
123		207
124	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.
125		224
126	=item $cf::RUNTIME	225	=item $cf::RUNTIME
127		226
128	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
129	every server tick.	228	every server tick.
130		229
131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR	230	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR	231	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR	232	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
134		233
135	Various directories - "/etc", read-only install directory, perl-library	234	Various directories - "/etc", read-only install directory, perl-library
136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",	235	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
137	unique-items directory, player file directory, random maps directory and	236	unique-items directory, player file directory, random maps directory and
138	database environment.	237	database environment.
139		238
140	=item $cf::NOW
141
142	The time of the last (current) server tick.
143
144	=item $cf::TICK
145
146	The interval between server ticks, in seconds.
147
148	=item $cf::LOADAVG	239	=item $cf::LOADAVG
149		240
150	The current CPU load on the server (alpha-smoothed), as a value between 0	241	The current CPU load on the server (alpha-smoothed), as a value between 0
151	(none) and 1 (overloaded), indicating how much time is spent on processing	242	(none) and 1 (overloaded), indicating how much time is spent on processing
152	objects per tick. Healthy values are < 0.5.	243	objects per tick. Healthy values are < 0.5.
…		…
155		246
156	The raw value load value from the last tick.	247	The raw value load value from the last tick.
157		248
158	=item %cf::CFG	249	=item %cf::CFG
159		250
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	251	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	252	from wherever your confdir points to.
162		253
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	254	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		255
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	256	These are functions that inhibit the current coroutine one tick.
166	returns directly I<after> the tick processing (and consequently, can only wake one process	257	cf::wait_for_tick_begin only returns directly I<after> the tick
		258	processing (and consequently, can only wake one thread per tick), while
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	259	cf::wait_for_tick wakes up all waiters after tick processing.
		260
		261	Note that cf::wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$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.
168		289
169	=back	290	=back
170		291
171	=cut	292	=cut
172		293
173	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
174	*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 {
175	my $msg = join "", @_;	301	my $msg = join "", @_;
176		302
177	$msg .= "\n"	303	$msg .= "\n"
178	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
179		305
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		307
182	utf8::encode $msg;
183	LOG llevError, $msg;	308	LOG llevWarn, $msg;
184	};	309	};
185	}	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	};
186		324
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@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';
192	@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)
193		332
194	# 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
195	# within the Safe compartment.	334	# within the Safe compartment.
196	for my $pkg (qw(	335	for my $pkg (qw(
197	cf::global cf::attachable	336	cf::global cf::attachable
198	cf::object cf::object::player	337	cf::object cf::object::player
199	cf::client cf::player	338	cf::client cf::player
200	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
201	cf::map cf::party cf::region	341	cf::party cf::region
202	)) {	342	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	344	}
206		345
207	$Event::DIED = sub {	346	$EV::DIED = sub {
208	warn "error in event callback: @_";	347	warn "error in event callback: $@";
209	};	348	};
		349
		350	#############################################################################
		351
		352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
210		356
211	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
212		358
213	=over 4	359	=over 4
214		360
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	380	$d
235	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
236	}	382	}
237		383
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
239		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($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
240	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
241		437
242	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
243		439
244	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
245		441
246	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
247		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
248	=item cf::lock_wait $string	513	=item cf::lock_wait $string
249		514
250	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
251		516
252	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
253		518
254	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
255	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,
256	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
257	returned.	522	returned.
258		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
259	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
260	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
261		529
262	=item $locked = cf::lock_active $string	530	=item $locked = cf::lock_active $string
263		531
264	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.
265		533
266	=cut	534	=cut
267		535
268	our %LOCK;	536	our $LOCKS = new Coro::SemaphoreSet;
269		537
270	sub lock_wait($) {	538	sub lock_wait($) {
271	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	540	}
279		541
280	sub lock_acquire($) {	542	sub lock_acquire($) {
281	my ($key) = @_;	543	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	544	}
293		545
294	sub lock_active($) {	546	sub lock_active($) {
295	my ($key) = @_;	547	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	548	}
299		549
300	sub freeze_mainloop {	550	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
302		552
303	my $guard = Coro::guard {	553	&Guard::guard (\&tick_inhibit_dec);
304	$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($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
305	};	623	}
306	$TICK_WATCHER->stop;	624	};
307	$guard	625
		626	sub get_slot($;$$) {
		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	$sig->wait;
308	}	639	}
309		640
310	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
311		642
312	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		648
318	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
319		650
320	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
321		652
322	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
325		657
326	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
329	fast or be very important.	661	fast or be very important.
…		…
331	=cut	663	=cut
332		664
333	sub sync_job(&) {	665	sub sync_job(&) {
334	my ($job) = @_;	666	my ($job) = @_;
335		667
336	if ($Coro::current == $Coro::main) {	668	if (in_main) {
337	my $time = Event::time;	669	my $time = AE::time;
338		670
339	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
341		673
342	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	675
344	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
345		677
346	my $busy = 1;	678	my $busy = 1;
347	my @res;	679	my @res;
348		680
349	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	683	@res = eval { $job->() };
351	warn $@ if $@;	684	error $@ if $@;
352	undef $busy;	685	undef $busy;
353	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
354		687
355	while ($busy) {	688	while ($busy) {
356	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
357	}	693	}
		694	}
358		695
359	$time = Event::time - $time;	696	my $time = AE::time - $time;
360		697
361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364	$tick_start += $time; # do not account sync jobs to server load	698	$TICK_START += $time; # do not account sync jobs to server load
365		699
366	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
367	} else {	701	} else {
368	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
369		703
…		…
389	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
390		724
391	$coro	725	$coro
392	}	726	}
393		727
394	sub write_runtime {	728	=item fork_call { }, @args
395	my $runtime = "$LOCALDIR/runtime";
396		729
397	# first touch the runtime file to show we are still running:	730	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	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.
399		734
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	735	=cut
401	utime undef, undef, $fh;	736
		737	sub post_fork {
		738	reset_signals;
		739	}
		740
		741	sub fork_call(&@) {
		742	my ($cb, @args) = @_;
		743
		744	# we seemingly have to make a local copy of the whole thing,
		745	# otherwise perl prematurely frees the stuff :/
		746	# TODO: investigate and fix (likely this will be rather laborious)
		747
		748	my @res = Coro::Util::fork_eval {
		749	cf::post_fork;
		750	&$cb
		751	} @args;
		752
		753	wantarray ? @res : $res[-1]
		754	}
		755
		756	sub objinfo {
		757	(
		758	"counter value" => cf::object::object_count,
		759	"objects created" => cf::object::create_count,
		760	"objects destroyed" => cf::object::destroy_count,
		761	"freelist size" => cf::object::free_count,
		762	"allocated objects" => cf::object::objects_size,
		763	"active objects" => cf::object::actives_size,
		764	)
		765	}
		766
		767	=item $coin = coin_from_name $name
		768
		769	=cut
		770
		771	our %coin_alias = (
		772	"silver" => "silvercoin",
		773	"silvercoin" => "silvercoin",
		774	"silvercoins" => "silvercoin",
		775	"gold" => "goldcoin",
		776	"goldcoin" => "goldcoin",
		777	"goldcoins" => "goldcoin",
		778	"platinum" => "platinacoin",
		779	"platinumcoin" => "platinacoin",
		780	"platinumcoins" => "platinacoin",
		781	"platina" => "platinacoin",
		782	"platinacoin" => "platinacoin",
		783	"platinacoins" => "platinacoin",
		784	"royalty" => "royalty",
		785	"royalties" => "royalty",
		786	);
		787
		788	sub coin_from_name($) {
		789	$coin_alias{$_[0]}
		790	? cf::arch::find $coin_alias{$_[0]}
		791	: undef
		792	}
		793
		794	=item $value = cf::db_get $family => $key
		795
		796	Returns a single value from the environment database.
		797
		798	=item cf::db_put $family => $key => $value
		799
		800	Stores the given C<$value> in the family. It can currently store binary
		801	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		802
		803	=item $db = cf::db_table "name"
		804
		805	Create and/or open a new database table. The string must not be "db" and must be unique
		806	within each server.
		807
		808	=cut
		809
		810	sub db_table($) {
		811	cf::error "db_get called from main context"
		812	if $Coro::current == $Coro::main;
		813
		814	my ($name) = @_;
		815	my $db = BDB::db_create $DB_ENV;
		816
		817	eval {
		818	$db->set_flags (BDB::CHKSUM);
		819
		820	utf8::encode $name;
		821	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		822	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		823	cf::cleanup "db_open(db): $!" if $!;
402	}	824	};
		825	cf::cleanup "db_open(db): $@" if $@;
403		826
404	my $guard = cf::lock_acquire "write_runtime";	827	$db
		828	}
405		829
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	830	our $DB;
407	or return;
408		831
409	my $value = $cf::RUNTIME + 90 + 10;	832	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	833	$DB ||= db_table "db";
411	# 60 allows for the watchdog to kill the server.	834	}
412		835
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	836	sub db_get($$) {
414	and return;	837	my $key = "$_[0]/$_[1]";
415		838
416	# always fsync - this file is important	839	cf::error "db_get called from main context"
417	aio_fsync $fh	840	if $Coro::current == $Coro::main;
418	and return;
419		841
420	# touch it again to show we are up-to-date	842	BDB::db_get $DB, undef, $key, my $data;
421	utime undef, undef, $fh;
422		843
423	close $fh	844	$! ? ()
424	or return;	845	: $data
		846	}
425		847
426	aio_rename "$runtime~", $runtime	848	sub db_put($$$) {
427	and return;	849	BDB::dbreq_pri 4;
		850	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		851	}
428		852
429	warn "runtime file written.\n";#d#	853	=item cf::cache $id => [$paths...], $processversion => $process
430		854
		855	Generic caching function that returns the value of the resource $id,
		856	caching and regenerating as required.
		857
		858	This function can block.
		859
		860	=cut
		861
		862	sub cache {
		863	my ($id, $src, $processversion, $process) = @_;
		864
		865	my $meta =
		866	join "\x00",
		867	$processversion,
		868	map {
		869	aio_stat $_
		870	and Carp::croak "$_: $!";
		871
		872	($_, (stat _)[7,9])
		873	} @$src;
		874
		875	my $dbmeta = db_get cache => "$id/meta";
		876	if ($dbmeta ne $meta) {
		877	# changed, we may need to process
		878
		879	my @data;
		880	my $md5;
		881
		882	for (0 .. $#$src) {
		883	$data[$_] = load_file $src->[$_];
		884	}
		885
		886	# if processing is expensive, check
		887	# checksum first
		888	if (1) {
		889	$md5 =
		890	join "\x00",
		891	$processversion,
		892	map {
		893	cf::cede_to_tick;
		894	($src->[$_], Digest::MD5::md5_hex $data[$_])
		895	} 0.. $#$src;
		896
		897
		898	my $dbmd5 = db_get cache => "$id/md5";
		899	if ($dbmd5 eq $md5) {
		900	db_put cache => "$id/meta", $meta;
		901
		902	return db_get cache => "$id/data";
		903	}
		904	}
		905
		906	my $t1 = EV::time;
		907	my $data = $process->(\@data);
		908	my $t2 = EV::time;
		909
		910	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		911
		912	db_put cache => "$id/data", $data;
		913	db_put cache => "$id/md5" , $md5;
		914	db_put cache => "$id/meta", $meta;
		915
		916	return $data;
431	1	917	}
		918
		919	db_get cache => "$id/data"
432	}	920	}
433		921
434	=item cf::datalog type => key => value, ...	922	=item cf::datalog type => key => value, ...
435		923
436	Log a datalog packet of the given type with the given key-value pairs.	924	Log a datalog packet of the given type with the given key-value pairs.
437		925
438	=cut	926	=cut
439		927
440	sub datalog($@) {	928	sub datalog($@) {
441	my ($type, %kv) = @_;	929	my ($type, %kv) = @_;
442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	930	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
443	}	931	}
444		932
445	=back	933	=back
446		934
447	=cut	935	=cut
448		936
449	#############################################################################	937	#############################################################################
450		938
451	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
452		940
453	Many objects in crossfire are so-called attachable objects. That means you can	941	Many objects in deliantra are so-called attachable objects. That means you can
454	attach callbacks/event handlers (a collection of which is called an "attachment")	942	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
456		944
457	In the following description, CLASS can be any of C<global>, C<object>	945	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	946	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	947	Deliantra).
460		948
461	=over 4	949	=over 4
462		950
463	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
464		952
…		…
508	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
509		997
510	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
512		1000
513	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
514	that are attached at load/instantiate time, thus the need for a name.	1002	that are attached at load/instantiate time, thus the need for a name.
515		1003
516	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
517		1005
518	=over 4	1006	=over 4
…		…
642		1130
643	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
644	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
645		1133
646	} elsif (ref $type) {	1134	} elsif (ref $type) {
647	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
648		1136
649	} else {	1137	} else {
650	shift @arg;	1138	shift @arg;
651	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
652	}	1140	}
653	}	1141	}
654	}	1142	}
655		1143
656	sub _object_attach {	1144	sub _object_attach {
…		…
666	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
667	}	1155	}
668		1156
669	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
670	} else {	1158	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
672	}	1160	}
673		1161
674	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
675	}	1163	}
676		1164
…		…
716	";	1204	";
717	die if $@;	1205	die if $@;
718	}	1206	}
719		1207
720	our $override;	1208	our $override;
721	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1209	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
722		1210
723	sub override {	1211	sub override {
724	$override = 1;	1212	$override = 1;
725	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
726	}	1214	}
727		1215
728	sub do_invoke {	1216	sub do_invoke {
729	my $event = shift;	1217	my $event = shift;
730	my $callbacks = shift;	1218	my $callbacks = shift;
731		1219
732	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
733		1221
734	local $override;	1222	local $override;
735		1223
736	for (@$callbacks) {	1224	for (@$callbacks) {
737	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
738		1226
739	if ($@) {	1227	if ($@) {
740	warn "$@";
741	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
742	override;	1229	override;
743	}	1230	}
744		1231
745	return 1 if $override;	1232	return 1 if $override;
746	}	1233	}
747		1234
748	0	1235	0
749	}	1236	}
750		1237
751	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
752		1239
753	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
754		1241
755	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
756		1243
757	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1244	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
758	removed in future versions), and there is no public API to access override	1245	removed in future versions), and there is no public API to access override
759	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
760		1247
761	=back	1248	=back
762		1249
763	=cut	1250	=cut
764		1251
765	#############################################################################	1252	#############################################################################
766	# object support	1253	# object support
		1254
		1255	sub _object_equal($$);
		1256	sub _object_equal($$) {
		1257	my ($a, $b) = @_;
		1258
		1259	return 0 unless (ref $a) eq (ref $b);
		1260
		1261	if ("HASH" eq ref $a) {
		1262	my @ka = keys %$a;
		1263	my @kb = keys %$b;
		1264
		1265	return 0 if @ka != @kb;
		1266
		1267	for (0 .. $#ka) {
		1268	return 0 unless $ka[$_] eq $kb[$_];
		1269	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1270	}
		1271
		1272	} elsif ("ARRAY" eq ref $a) {
		1273
		1274	return 0 if @$a != @$b;
		1275
		1276	for (0 .. $#$a) {
		1277	return 0 unless _object_equal $a->[$_], $b->[$_];
		1278	}
		1279
		1280	} elsif ($a ne $b) {
		1281	return 0;
		1282	}
		1283
		1284	1
		1285	}
		1286
		1287	our $SLOW_MERGES;#d#
		1288	sub _can_merge {
		1289	my ($ob1, $ob2) = @_;
		1290
		1291	++$SLOW_MERGES;#d#
		1292
		1293	# we do the slow way here
		1294	return _object_equal $ob1, $ob2
		1295	}
767		1296
768	sub reattach {	1297	sub reattach {
769	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
770	my ($obj) = @_;	1299	my ($obj) = @_;
771		1300
		1301	# no longer needed after getting rid of delete_package?
772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1302	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
773		1303
774	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
775		1305
776	@$registry = ();	1306	@$registry = ();
777		1307
…		…
782	for (@$attach) {	1312	for (@$attach) {
783	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
784	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
785	}	1315	}
786	} else {	1316	} else {
787	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
788	}	1318	}
789	}	1319	}
790	}	1320	}
791		1321
792	cf::attachable->attach (	1322	cf::attachable->attach (
793	prio => -1000000,	1323	prio => -1000000,
794	on_instantiate => sub {	1324	on_instantiate => sub {
795	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
796		1326
797	$data = from_json $data;	1327	$data = decode_json $data;
798		1328
799	for (@$data) {	1329	for (@$data) {
800	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
801		1331
802	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
818	sub object_freezer_save {	1348	sub object_freezer_save {
819	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
820		1350
821	sync_job {	1351	sync_job {
822	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
823	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
824	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
825		1357
826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
827	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
829	aio_fsync $fh if $cf::USE_FSYNC;	1361	if ($cf::USE_FSYNC) {
		1362	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;
		1363	aio_fsync $fh;
		1364	}
830	close $fh;	1365	aio_close $fh;
831		1366
832	if (@$objs) {	1367	if (@$objs) {
833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1368	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
834	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
835	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
836	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
837	aio_fsync $fh if $cf::USE_FSYNC;	1372	if ($cf::USE_FSYNC) {
		1373	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;
		1374	aio_fsync $fh;
		1375	}
838	close $fh;	1376	aio_close $fh;
839	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
840	}	1378	}
841	} else {	1379	} else {
842	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
843	}	1381	}
844		1382
845	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
846	} else {	1387	} else {
847	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
848	}	1389	}
849	} else {	1390	} else {
850	aio_unlink $filename;	1391	aio_unlink $filename;
851	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
852	}	1393	}
853	}	1394	};
854	}	1395	}
855		1396
856	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
857	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
858		1399
…		…
870	or return;	1411	or return;
871		1412
872	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
873	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
874	or return;	1415	or return;
		1416
875	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
876	}	1419	}
877		1420
		1421	utf8::decode (my $decname = $filename);
878	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
879	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
880	return ($data, $av);	1426	($data, $av)
881	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
882		1434
883	#############################################################################	1435	#############################################################################
884	# command handling &c	1436	# command handling &c
885		1437
886	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
887		1439
888	Register a callback for execution when the client sends the user command	1440	Register a callback for execution when the client sends the user command
889	$name.	1441	$name.
890		1442
891	=cut	1443	=cut
…		…
897	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
898		1450
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1452	}
901		1453
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
903		1455
904	Register a callbackf ro execution when the client sends an extcmd packet.	1456	Register a callback for execution when the client sends an (synchronous)
		1457	extcmd packet. Ext commands will be processed in the order they are
		1458	received by the server, like other user commands. The first argument is
		1459	the logged-in player. Ext commands can only be processed after a player
		1460	has logged in successfully.
905		1461
906	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
907	called.
908		1463
909	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
910		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$reply> function.
		1468
		1469	=item cf::register_exticmd $name => \&callback($ns,@args)
		1470
		1471	Register a callback for execution when the client sends an (asynchronous)
		1472	exticmd packet. Exti commands are processed by the server as soon as they
		1473	are received, i.e. out of order w.r.t. other commands. The first argument
		1474	is a client socket. Exti commands can be received anytime, even before
		1475	log-in.
		1476
		1477	The values will be sent back to the client.
		1478
		1479	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1480
		1481	Same as C<cf::register_extcmd>, but instead of returning values, the
		1482	callback needs to clal the C<$reply> function.
		1483
		1484	=cut
		1485
911	sub register_extcmd {	1486	sub register_extcmd($$) {
912	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
913		1488
914	$EXTCMD{$name} = $cb;	1489	$EXTCMD{$name} = $cb;
915	}	1490	}
916		1491
		1492	sub register_async_extcmd($$) {
		1493	my ($name, $cb) = @_;
		1494
		1495	$EXTACMD{$name} = $cb;
		1496	}
		1497
		1498	sub register_exticmd($$) {
		1499	my ($name, $cb) = @_;
		1500
		1501	$EXTICMD{$name} = $cb;
		1502	}
		1503
		1504	sub register_async_exticmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTIACMD{$name} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
		1511
917	cf::player->attach (	1512	cf::player->attach (
918	on_command => sub {	1513	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
920		1515
921	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
922	or return;	1517	or return;
923		1518
…		…
928	cf::override;	1523	cf::override;
929	},	1524	},
930	on_extcmd => sub {	1525	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
932		1527
933	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1529
935	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
937	if (my %reply = $cb->($pl, $msg)) {	1534	$cb->(
938	$pl->ext_reply ($msg->{msgid}, %reply);	1535	$pl,
		1536	sub {
		1537	$pl->ext_msg ("reply-$reply", @_)
		1538	if $reply;
		1539	},
		1540	@payload
		1541	);
		1542	} else {
		1543	my @reply;
		1544
		1545	if (my $cb = $EXTCMD{$type}) {
		1546	@reply = $cb->($pl, @payload);
939	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
940	}	1551	}
		1552
941	} else {	1553	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1555	}
944		1556
945	cf::override;	1557	cf::override;
946	},	1558	},
947	);	1559	);
948		1560
		1561	# "readahead" all extensions
949	sub load_extension {	1562	sub cache_extensions {
950	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
951		1564
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
953	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
954	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}	1568	}
977	die $@;
978	}	1569	};
979		1570
980	push @EXTS, $pkg;	1571	$grp
		1572	}
		1573
		1574	sub _ext_cfg_reg($$$$) {
		1575	my ($rvar, $varname, $cfgname, $default) = @_;
		1576
		1577	$cfgname = lc $varname
		1578	unless length $cfgname;
		1579
		1580	$EXT_CFG{$cfgname} = [$rvar, $default];
		1581
		1582	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
981	}	1583	}
982		1584
983	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
984	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1594	next unless -r $path;
986	eval {	1595
987	load_extension $ext;	1596	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1597	my $base = $1;
		1598	my $pkg = $1;
		1599	$pkg =~ s/[^[:word:]]/_/g;
		1600	$pkg = "ext::$pkg";
		1601
		1602	open my $fh, "<:utf8", $path
		1603	or die "$path: $!";
		1604
		1605	my $source = do { local $/; <$fh> };
		1606
		1607	my %ext = (
		1608	path => $path,
		1609	base => $base,
		1610	pkg => $pkg,
		1611	);
		1612
		1613	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1614	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1615
		1616	$ext{source} =
		1617	"package $pkg; use common::sense;\n"
		1618	. "#line 1 \"$path\"\n{\n"
		1619	. $source
		1620	. "\n};\n1";
		1621
		1622	$todo{$base} = \%ext;
		1623	}
		1624
		1625	my $pass = 0;
		1626	my %done;
		1627	while (%todo) {
		1628	my $progress;
		1629
		1630	++$pass;
		1631
		1632	ext:
		1633	while (my ($k, $v) = each %todo) {
		1634	for (split /,\s*/, $v->{meta}{depends}) {
		1635	next ext
		1636	unless exists $done{$_};
		1637	}
		1638
		1639	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1640
		1641	my $source = $v->{source};
		1642
		1643	# support "CONF varname :confname = default" pseudo-statements
		1644	$source =~ s{
		1645	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1646	}{
		1647	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1648	}gmxe;
		1649
		1650	my $active = eval $source;
		1651
		1652	if (length $@) {
		1653	error "$v->{path}: $@\n";
		1654
		1655	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1656	if exists $v->{meta}{mandatory};
		1657
		1658	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1659	delete $todo{$k};
		1660	} else {
		1661	$done{$k} = delete $todo{$k};
		1662	push @EXTS, $v->{pkg};
		1663	$progress = 1;
		1664
		1665	info "$v->{base}: extension inactive.\n"
		1666	unless $active;
		1667	}
988	1	1668	}
989	} or warn "$ext not loaded: $@";	1669
		1670	unless ($progress) {
		1671	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1672
		1673	while (my ($k, $v) = each %todo) {
		1674	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1675	if exists $v->{meta}{mandatory};
		1676	}
		1677
		1678	last;
		1679	}
		1680	}
990	}	1681	};
991	}	1682	}
992		1683
993	#############################################################################	1684	#############################################################################
994		1685
		1686	=back
		1687
995	=head2 CORE EXTENSIONS	1688	=head2 CORE EXTENSIONS
996		1689
997	Functions and methods that extend core crossfire objects.	1690	Functions and methods that extend core deliantra objects.
998		1691
999	=cut	1692	=cut
1000		1693
1001	package cf::player;	1694	package cf::player;
1002		1695
1003	use Coro::AIO;	1696	use Coro::AIO;
1004		1697
1005	=head3 cf::player	1698	=head3 cf::player
1006		1699
1007	=over 4	1700	=over 4
		1701
		1702	=item cf::player::num_playing
		1703
		1704	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1705
		1706	=cut
		1707
		1708	sub num_playing {
		1709	scalar grep
		1710	$_->ob->map
		1711	&& !$_->hidden
		1712	&& !$_->ob->flag (cf::FLAG_WIZ),
		1713	cf::player::list
		1714	}
1008		1715
1009	=item cf::player::find $login	1716	=item cf::player::find $login
1010		1717
1011	Returns the given player object, loading it if necessary (might block).	1718	Returns the given player object, loading it if necessary (might block).
1012		1719
…		…
1031		1738
1032	sub exists($) {	1739	sub exists($) {
1033	my ($login) = @_;	1740	my ($login) = @_;
1034		1741
1035	$cf::PLAYER{$login}	1742	$cf::PLAYER{$login}
1036	or cf::sync_job { !aio_stat path $login }	1743	or !aio_stat path $login
1037	}	1744	}
1038		1745
1039	sub find($) {	1746	sub find($) {
1040	return $cf::PLAYER{$_[0]} || do {	1747	return $cf::PLAYER{$_[0]} || do {
1041	my $login = $_[0];	1748	my $login = $_[0];
…		…
1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1755	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1756	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1757	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1051	aio_unlink +(playerdir $login) . "/$login.pl";	1758	aio_unlink +(playerdir $login) . "/$login.pl";
1052		1759
1053	my $pl = load_pl path $login	1760	my $f = new_from_file cf::object::thawer path $login
1054	or return;	1761	or return;
		1762
		1763	my $pl = cf::player::load_pl $f
		1764	or return;
		1765
		1766	local $cf::PLAYER_LOADING{$login} = $pl;
		1767	$f->resolve_delayed_derefs;
1055	$cf::PLAYER{$login} = $pl	1768	$cf::PLAYER{$login} = $pl
1056	}	1769	}
1057	}	1770	}
1058	}	1771	}
		1772
		1773	cf::player->attach (
		1774	on_load => sub {
		1775	my ($pl, $path) = @_;
		1776
		1777	# restore slots saved in save, below
		1778	my $slots = delete $pl->{_slots};
		1779
		1780	$pl->ob->current_weapon ($slots->[0]);
		1781	$pl->combat_ob ($slots->[1]);
		1782	$pl->ranged_ob ($slots->[2]);
		1783	},
		1784	);
1059		1785
1060	sub save($) {	1786	sub save($) {
1061	my ($pl) = @_;	1787	my ($pl) = @_;
1062		1788
1063	return if $pl->{deny_save};	1789	return if $pl->{deny_save};
…		…
1068	return if $pl->{deny_save};	1794	return if $pl->{deny_save};
1069		1795
1070	aio_mkdir playerdir $pl, 0770;	1796	aio_mkdir playerdir $pl, 0770;
1071	$pl->{last_save} = $cf::RUNTIME;	1797	$pl->{last_save} = $cf::RUNTIME;
1072		1798
		1799	cf::get_slot 0.01;
		1800
		1801	# save slots, to be restored later
		1802	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1803
1073	$pl->save_pl ($path);	1804	$pl->save_pl ($path);
1074	Coro::cede;	1805	cf::cede_to_tick;
1075	}	1806	}
1076		1807
1077	sub new($) {	1808	sub new($) {
1078	my ($login) = @_;	1809	my ($login) = @_;
1079		1810
…		…
1085	$cf::PLAYER{$login} = $self;	1816	$cf::PLAYER{$login} = $self;
1086		1817
1087	$self	1818	$self
1088	}	1819	}
1089		1820
		1821	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1822
		1823	=cut
		1824
		1825	sub send_msg {
		1826	my $ns = shift->ns
		1827	or return;
		1828	$ns->send_msg (@_);
		1829	}
		1830
1090	=item $pl->quit_character	1831	=item $pl->quit_character
1091		1832
1092	Nukes the player without looking back. If logged in, the connection will	1833	Nukes the player without looking back. If logged in, the connection will
1093	be destroyed. May block for a long time.	1834	be destroyed. May block for a long time.
1094		1835
…		…
1098	my ($pl) = @_;	1839	my ($pl) = @_;
1099		1840
1100	my $name = $pl->ob->name;	1841	my $name = $pl->ob->name;
1101		1842
1102	$pl->{deny_save} = 1;	1843	$pl->{deny_save} = 1;
1103	$pl->password ("*"); # this should lock out the player until we nuked the dir	1844	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1104		1845
1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1106	$pl->deactivate;	1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
1108	$pl->ns->destroy if $pl->ns;	1853	$pl->ns->destroy if $pl->ns;
1109		1854
1110	my $path = playerdir $pl;	1855	my $path = playerdir $pl;
1111	my $temp = "$path~$cf::RUNTIME~deleting~";	1856	my $temp = "$path~$cf::RUNTIME~deleting~";
1112	aio_rename $path, $temp;	1857	aio_rename $path, $temp;
…		…
1147	or return [];	1892	or return [];
1148		1893
1149	my @logins;	1894	my @logins;
1150		1895
1151	for my $login (@$dirs) {	1896	for my $login (@$dirs) {
		1897	my $path = path $login;
		1898
		1899	# a .pst is a dead give-away for a valid player
		1900	# if no pst file found, open and chekc for blocked users
		1901	if (aio_stat "$path.pst") {
1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1153	aio_read $fh, 0, 512, my $buf, 0 or next;	1903	aio_read $fh, 0, 512, my $buf, 0 or next;
1154	$buf !~ /^password -------------$/m or next; # official not-valid tag	1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
1155		1906
1156	utf8::decode $login;	1907	utf8::decode $login;
1157	push @logins, $login;	1908	push @logins, $login;
1158	}	1909	}
1159		1910
1160	\@logins	1911	\@logins
1161	}	1912	}
1162		1913
1163	=item $player->maps	1914	=item $player->maps
		1915
		1916	=item cf::player::maps $login
1164		1917
1165	Returns an arrayref of map paths that are private for this	1918	Returns an arrayref of map paths that are private for this
1166	player. May block.	1919	player. May block.
1167		1920
1168	=cut	1921	=cut
…		…
1186	}	1939	}
1187		1940
1188	\@paths	1941	\@paths
1189	}	1942	}
1190		1943
1191	=item $player->ext_reply ($msgid, %msg)	1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
1192		1945
1193	Sends an ext reply to the player.	1946	Expand deliantra pod fragments into protocol xml.
1194		1947
1195	=cut
1196
1197	sub ext_reply($$%) {
1198	my ($self, $id, %msg) = @_;
1199
1200	$msg{msgid} = $id;
1201
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}
1204
1205	=item $player->ext_event ($type, %msg)	1948	=item $player->ext_msg ($type, @msg)
1206		1949
1207	Sends an ext event to the client.	1950	Sends an ext event to the client.
1208		1951
1209	=cut	1952	=cut
1210		1953
1211	sub ext_event($$%) {	1954	sub ext_msg($$@) {
1212	my ($self, $type, %msg) = @_;	1955	my ($self, $type, @msg) = @_;
1213		1956
1214	$self->ns->ext_event ($type, %msg);	1957	$self->ns->ext_msg ($type, @msg);
1215	}	1958	}
1216		1959
1217	=head3 cf::region	1960	=head3 cf::region
1218		1961
1219	=over 4	1962	=over 4
…		…
1222		1965
1223	package cf::region;	1966	package cf::region;
1224		1967
1225	=item cf::region::find_by_path $path	1968	=item cf::region::find_by_path $path
1226		1969
1227	Tries to decuce the probable region for a map knowing only its path.	1970	Tries to decuce the likely region for a map knowing only its path.
1228		1971
1229	=cut	1972	=cut
1230		1973
1231	sub find_by_path($) {	1974	sub find_by_path($) {
1232	my ($path) = @_;	1975	my ($path) = @_;
1233		1976
		1977	$path =~ s/^~[^\/]*//; # skip ~login
		1978
1234	my ($match, $specificity);	1979	my ($match, $specificity);
1235		1980
1236	for my $region (list) {	1981	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1982	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1983	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1984	if $region->specificity > $specificity;
1240	}	1985	}
1241	}	1986	}
1242		1987
…		…
1263	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1265		2010
1266	sub generate_random_map {	2011	sub generate_random_map {
1267	my ($self, $rmp) = @_;	2012	my ($self, $rmp) = @_;
1268	# mit "rum" bekleckern, nicht	2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
1269	$self->_create_random_map (	2016	$self->_create_random_map ($rmp);
1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1273	$rmp->{exit_on_final_map},
1274	$rmp->{xsize}, $rmp->{ysize},
1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1277	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1278	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1279	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1280	(cf::region::find $rmp->{region}), $rmp->{custom}
1281	)
1282	}	2017	}
1283		2018
1284	=item cf::map->register ($regex, $prio)	2019	=item cf::map->register ($regex, $prio)
1285		2020
1286	Register a handler for the map path matching the given regex at the	2021	Register a handler for the map path matching the given regex at the
…		…
1291		2026
1292	sub register {	2027	sub register {
1293	my (undef, $regex, $prio) = @_;	2028	my (undef, $regex, $prio) = @_;
1294	my $pkg = caller;	2029	my $pkg = caller;
1295		2030
1296	no strict;
1297	push @{"$pkg\::ISA"}, __PACKAGE__;	2031	push @{"$pkg\::ISA"}, __PACKAGE__;
1298		2032
1299	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1300	}	2034	}
1301		2035
1302	# also paths starting with '/'	2036	# also paths starting with '/'
1303	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1304		2038
1305	sub thawer_merge {	2039	sub thawer_merge {
1306	my ($self, $merge) = @_;	2040	my ($self, $merge) = @_;
1307		2041
1308	# we have to keep some variables in memory intact	2042	# we have to keep some variables in memory intact
1309	local $self->{path};	2043	local $self->{path};
1310	local $self->{load_path};	2044	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		2045
1314	$self->SUPER::thawer_merge ($merge);	2046	$self->SUPER::thawer_merge ($merge);
1315	}	2047	}
1316		2048
1317	sub normalise {	2049	sub normalise {
1318	my ($path, $base) = @_;	2050	my ($path, $base) = @_;
1319		2051
1320	$path = "$path"; # make sure its a string	2052	$path = "$path"; # make sure it's a string
1321		2053
1322	$path =~ s/\.map$//;	2054	$path =~ s/\.map$//;
1323		2055
1324	# map plan:	2056	# map plan:
1325	#	2057	#
…		…
1340	$base =~ s{[^/]+/?$}{};	2072	$base =~ s{[^/]+/?$}{};
1341	$path = "$base/$path";	2073	$path = "$base/$path";
1342	}	2074	}
1343		2075
1344	for ($path) {	2076	for ($path) {
1345	redo if s{//}{/};
1346	redo if s{/\.?/}{/};	2077	redo if s{/\.?/}{/};
1347	redo if s{/[^/]+/\.\./}{/};	2078	redo if s{/[^/]+/\.\./}{/};
1348	}	2079	}
1349		2080
1350	$path	2081	$path
…		…
1364	$self->init; # pass $1 etc.	2095	$self->init; # pass $1 etc.
1365	return $self;	2096	return $self;
1366	}	2097	}
1367	}	2098	}
1368		2099
1369	Carp::carp "unable to resolve path '$path' (base '$base').";	2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
1370	()	2101	()
1371	}	2102	}
1372		2103
		2104	# may re-bless or do other evil things
1373	sub init {	2105	sub init {
1374	my ($self) = @_;	2106	my ($self) = @_;
1375		2107
1376	$self	2108	$self
1377	}	2109	}
…		…
1396		2128
1397	# the temporary/swap location	2129	# the temporary/swap location
1398	sub save_path {	2130	sub save_path {
1399	my ($self) = @_;	2131	my ($self) = @_;
1400		2132
1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1402	"$TMPDIR/$path.map"	2134	"$TMPDIR/$path.map"
1403	}	2135	}
1404		2136
1405	# the unique path, undef == no special unique path	2137	# the unique path, undef == no special unique path
1406	sub uniq_path {	2138	sub uniq_path {
1407	my ($self) = @_;	2139	my ($self) = @_;
1408		2140
1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1410	"$UNIQUEDIR/$path"	2142	"$UNIQUEDIR/$path"
1411	}	2143	}
1412		2144
1413	# and all this just because we cannot iterate over	2145	sub decay_objects {
1414	# all maps in C++...
1415	sub change_all_map_light {
1416	my ($change) = @_;	2146	my ($self) = @_;
1417		2147
1418	$_->change_map_light ($change)	2148	return if $self->{deny_reset};
1419	for grep $_->outdoor, values %cf::MAP;	2149
		2150	$self->do_decay_objects;
1420	}	2151	}
1421		2152
1422	sub unlink_save {	2153	sub unlink_save {
1423	my ($self) = @_;	2154	my ($self) = @_;
1424		2155
…		…
1429		2160
1430	sub load_header_from($) {	2161	sub load_header_from($) {
1431	my ($self, $path) = @_;	2162	my ($self, $path) = @_;
1432		2163
1433	utf8::encode $path;	2164	utf8::encode $path;
1434	#aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1435	# or return;
1436
1437	$self->_load_header ($path)
1438	or return;	2166	or return;
1439		2167
		2168	$self->_load_header ($f)
		2169	or return;
		2170
		2171	local $MAP_LOADING{$self->{path}} = $self;
		2172	$f->resolve_delayed_derefs;
		2173
1440	$self->{load_path} = $path;	2174	$self->{load_path} = $path;
1441		2175
1442	1	2176	1
1443	}	2177	}
1444		2178
		2179	# used to laod the header of an original map
1445	sub load_header_orig {	2180	sub load_header_orig {
1446	my ($self) = @_;	2181	my ($self) = @_;
1447		2182
1448	$self->load_header_from ($self->load_path)	2183	$self->load_header_from ($self->load_path)
1449	}	2184	}
1450		2185
		2186	# used to laod the header of an instantiated map
1451	sub load_header_temp {	2187	sub load_header_temp {
1452	my ($self) = @_;	2188	my ($self) = @_;
1453		2189
1454	$self->load_header_from ($self->save_path)	2190	$self->load_header_from ($self->save_path)
1455	}	2191	}
1456		2192
		2193	# called after loading the header from an instantiated map
1457	sub prepare_temp {	2194	sub prepare_temp {
1458	my ($self) = @_;	2195	my ($self) = @_;
1459		2196
1460	$self->last_access ((delete $self->{last_access})	2197	$self->last_access ((delete $self->{last_access})
1461	|| $cf::RUNTIME); #d#	2198	|| $cf::RUNTIME); #d#
1462	# safety	2199	# safety
1463	$self->{instantiate_time} = $cf::RUNTIME	2200	$self->{instantiate_time} = $cf::RUNTIME
1464	if $self->{instantiate_time} > $cf::RUNTIME;	2201	if $self->{instantiate_time} > $cf::RUNTIME;
1465	}	2202	}
1466		2203
		2204	# called after loading the header from an original map
1467	sub prepare_orig {	2205	sub prepare_orig {
1468	my ($self) = @_;	2206	my ($self) = @_;
1469		2207
1470	$self->{load_original} = 1;	2208	$self->{load_original} = 1;
1471	$self->{instantiate_time} = $cf::RUNTIME;	2209	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1482	$self->load_header_orig	2220	$self->load_header_orig
1483	or return;	2221	or return;
1484	$self->prepare_orig;	2222	$self->prepare_orig;
1485	}	2223	}
1486		2224
		2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
		2227
1487	$self->default_region (cf::region::find_by_path $self->{path})	2228	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	2229	unless $self->default_region;
1489		2230
1490	1	2231	1
1491	}	2232	}
1492		2233
1493	sub find;	2234	sub find;
1494	sub find {	2235	sub find {
1495	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1496		2237
		2238	cf::cede_to_tick;
		2239
1497	$path = normalise $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1498		2241
		2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1499	cf::lock_wait "map_find:$path";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1500		2244
1501	$cf::MAP{$path} || do {	2245	$cf::MAP{$path} || do {
1502	my $guard = cf::lock_acquire "map_find:$path";
1503	my $map = new_from_path cf::map $path	2246	my $map = new_from_path cf::map $path
1504	or return;	2247	or return;
1505		2248
1506	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1507		2250
1508	$map->load_header	2251	$map->load_header
1509	or return;	2252	or return;
1510		2253
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	2255	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1514	$map->reset;	2259	$map->reset;
1515	undef $guard;
1516	return find $path;	2260	return find $path;
1517	}	2261	}
1518		2262
1519	$cf::MAP{$path} = $map	2263	$cf::MAP{$path} = $map
1520	}	2264	}
1521	}	2265	}
1522		2266
1523	sub pre_load { }	2267	sub pre_load { }
1524	sub post_load { }	2268	#sub post_load { } # XS
1525		2269
1526	sub load {	2270	sub load {
1527	my ($self) = @_;	2271	my ($self) = @_;
1528		2272
1529	local $self->{deny_reset} = 1; # loading can take a long time	2273	local $self->{deny_reset} = 1; # loading can take a long time
1530		2274
1531	my $path = $self->{path};	2275	my $path = $self->{path};
1532		2276
1533	{	2277	{
1534	my $guard = cf::lock_acquire "map_load:$path";	2278	my $guard = cf::lock_acquire "map_data:$path";
1535		2279
		2280	return unless $self->valid;
1536	return if $self->in_memory != cf::MAP_SWAPPED;	2281	return unless $self->state == cf::MAP_SWAPPED;
1537
1538	$self->in_memory (cf::MAP_LOADING);
1539		2282
1540	$self->alloc;	2283	$self->alloc;
1541		2284
1542	$self->pre_load;	2285	$self->pre_load;
1543	Coro::cede;	2286	cf::cede_to_tick;
1544		2287
1545	$self->_load_objects ($self->{load_path}, 1)	2288	if (exists $self->{load_path}) {
		2289	my $f = new_from_file cf::object::thawer $self->{load_path};
		2290	$f->skip_block;
		2291	$self->_load_objects ($f)
1546	or return;	2292	or return;
1547		2293
1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1549	if delete $self->{load_original};	2295	if delete $self->{load_original};
1550		2296
1551	if (my $uniq = $self->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1552	utf8::encode $uniq;	2298	utf8::encode $uniq;
1553	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1554	$self->clear_unique_items;	2301	$self->clear_unique_items;
1555	$self->_load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1556	}	2306	}
1557	}
1558		2307
1559	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1560	# now do the right thing for maps	2317	# now do the right thing for maps
1561	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1562	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1563	unless $self->difficulty;	2320	unless $self->difficulty;
1564	Coro::cede;	2321	cf::cede_to_tick;
1565		2322
1566	unless ($self->{deny_activate}) {	2323	unless ($self->{deny_activate}) {
1567	$self->decay_objects;	2324	$self->decay_objects;
1568	$self->fix_auto_apply;	2325	$self->fix_auto_apply;
1569	$self->update_buttons;	2326	$self->update_buttons;
1570	Coro::cede;	2327	cf::cede_to_tick;
1571	$self->set_darkness_map;	2328	#$self->activate; # no longer activate maps automatically
1572	Coro::cede;
1573	$self->activate;
1574	}	2329	}
1575		2330
1576	$self->in_memory (cf::MAP_IN_MEMORY);	2331	$self->{last_save} = $cf::RUNTIME;
		2332	$self->last_access ($cf::RUNTIME);
1577	}	2333	}
1578		2334
1579	$self->post_load;	2335	$self->post_load;
1580	}
1581		2336
		2337	1
		2338	}
		2339
		2340	# customize the map for a given player, i.e.
		2341	# return the _real_ map. used by e.g. per-player
		2342	# maps to change the path to ~playername/mappath
1582	sub customise_for {	2343	sub customise_for {
1583	my ($self, $ob) = @_;	2344	my ($self, $ob) = @_;
1584		2345
1585	return find "~" . $ob->name . "/" . $self->{path}	2346	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	2347	if $self->per_player;
1587		2348
		2349	# return find "?party/" . $ob->name . "/" . $self->{path}
		2350	# if $self->per_party;
		2351
1588	$self	2352	$self
1589	}
1590
1591	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {
1593	my ($map) = @_;
1594
1595	my @diag; # diagonal neighbours
1596
1597	for (0 .. 3) {
1598	my $neigh = $map->tile_path ($_)
1599	or next;
1600	$neigh = find $neigh, $map
1601	or next;
1602	$neigh->load;
1603
1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1606	}
1607
1608	for (@diag) {
1609	my $neigh = find @$_
1610	or next;
1611	$neigh->load;
1612	}
1613	}	2353	}
1614		2354
1615	sub find_sync {	2355	sub find_sync {
1616	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1617		2357
1618	cf::sync_job { find $path, $origin }	2358	# it's a bug to call this from the main context
		2359	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2360	if $Coro::current == $Coro::main;
		2361
		2362	find $path, $origin
1619	}	2363	}
1620		2364
1621	sub do_load_sync {	2365	sub do_load_sync {
1622	my ($map) = @_;	2366	my ($map) = @_;
1623		2367
1624	cf::sync_job { $map->load };	2368	# it's a bug to call this from the main context
		2369	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2370	if $Coro::current == $Coro::main;
		2371
		2372	$map->load;
1625	}	2373	}
1626		2374
1627	our %MAP_PREFETCH;	2375	our %MAP_PREFETCH;
1628	our $MAP_PREFETCHER = undef;	2376	our $MAP_PREFETCHER = undef;
1629		2377
1630	sub find_async {	2378	sub find_async {
1631	my ($path, $origin) = @_;	2379	my ($path, $origin, $load) = @_;
1632		2380
1633	$path = normalise $path, $origin && $origin->{path};	2381	$path = normalise $path, $origin;
1634		2382
1635	if (my $map = $cf::MAP{$path}) {	2383	if (my $map = $cf::MAP{$path}) {
1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2384	return $map if !$load || $map->linkable;
1637	}	2385	}
1638		2386
1639	undef $MAP_PREFETCH{$path};	2387	$MAP_PREFETCH{$path} |= $load;
		2388
1640	$MAP_PREFETCHER ||= cf::async {	2389	$MAP_PREFETCHER ||= cf::async {
		2390	$Coro::current->{desc} = "map prefetcher";
		2391
1641	while (%MAP_PREFETCH) {	2392	while (%MAP_PREFETCH) {
1642	for my $path (keys %MAP_PREFETCH) {	2393	while (my ($k, $v) = each %MAP_PREFETCH) {
1643	my $map = find $path	2394	if (my $map = find $k) {
1644	or next;
1645	$map->load;	2395	$map->load if $v;
		2396	}
1646		2397
1647	delete $MAP_PREFETCH{$path};	2398	delete $MAP_PREFETCH{$k};
1648	}	2399	}
1649	}	2400	}
1650	undef $MAP_PREFETCHER;	2401	undef $MAP_PREFETCHER;
1651	};	2402	};
1652	$MAP_PREFETCHER->prio (6);	2403	$MAP_PREFETCHER->prio (6);
1653		2404
1654	()	2405	()
1655	}	2406	}
1656		2407
		2408	# common code, used by both ->save and ->swapout
1657	sub save {	2409	sub _save {
1658	my ($self) = @_;	2410	my ($self) = @_;
1659
1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1661		2411
1662	$self->{last_save} = $cf::RUNTIME;	2412	$self->{last_save} = $cf::RUNTIME;
1663		2413
1664	return unless $self->dirty;	2414	return unless $self->dirty;
1665		2415
…		…
1671	return if $self->{deny_save};	2421	return if $self->{deny_save};
1672		2422
1673	local $self->{last_access} = $self->last_access;#d#	2423	local $self->{last_access} = $self->last_access;#d#
1674		2424
1675	cf::async {	2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
1676	$_->contr->save for $self->players;	2427	$_->contr->save for $self->players;
1677	};	2428	};
		2429
		2430	cf::get_slot 0.02;
1678		2431
1679	if ($uniq) {	2432	if ($uniq) {
1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1682	} else {	2435	} else {
1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2436	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1684	}	2437	}
1685	}	2438	}
1686		2439
		2440	sub save {
		2441	my ($self) = @_;
		2442
		2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2444
		2445	$self->_save;
		2446	}
		2447
1687	sub swap_out {	2448	sub swap_out {
1688	my ($self) = @_;	2449	my ($self) = @_;
1689		2450
1690	# save first because save cedes
1691	$self->save;
1692
1693	my $lock = cf::lock_acquire "map_data:" . $self->path;	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1694		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1695	return if $self->players;	2455	return if $self->players;
1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1697	return if $self->{deny_save};
1698		2456
		2457	# first deactivate the map and "unlink" it from the core
		2458	$self->deactivate;
		2459	$_->clear_links_to ($self) for values %cf::MAP;
		2460	$self->state (cf::MAP_SWAPPED);
		2461
		2462	# then atomically save
		2463	$self->_save;
		2464
		2465	# then free the map
1699	$self->clear;	2466	$self->clear;
1700	$self->in_memory (cf::MAP_SWAPPED);
1701	}	2467	}
1702		2468
1703	sub reset_at {	2469	sub reset_at {
1704	my ($self) = @_;	2470	my ($self) = @_;
1705		2471
1706	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1709		2474
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2476	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1712		2477
…		…
1723	my ($self) = @_;	2488	my ($self) = @_;
1724		2489
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		2491
1727	return if $self->players;	2492	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		2493
1730	warn "resetting map ", $self->path;#d#	2494	cf::trace "resetting map ", $self->path, "\n";
1731		2495
1732	$self->in_memory (cf::MAP_SWAPPED);	2496	$self->state (cf::MAP_SWAPPED);
1733		2497
1734	# need to save uniques path	2498	# need to save uniques path
1735	unless ($self->{deny_save}) {	2499	unless ($self->{deny_save}) {
1736	my $uniq = $self->uniq_path; utf8::encode $uniq;	2500	my $uniq = $self->uniq_path; utf8::encode $uniq;
1737		2501
…		…
1739	if $uniq;	2503	if $uniq;
1740	}	2504	}
1741		2505
1742	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1743		2507
		2508	$self->deactivate;
		2509	$_->clear_links_to ($self) for values %cf::MAP;
1744	$self->clear;	2510	$self->clear;
1745
1746	$_->clear_links_to ($self) for values %cf::MAP;
1747		2511
1748	$self->unlink_save;	2512	$self->unlink_save;
1749	$self->destroy;	2513	$self->destroy;
1750	}	2514	}
1751		2515
1752	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1753		2517
1754	sub nuke {	2518	sub nuke {
1755	my ($self) = @_;	2519	my ($self) = @_;
1756		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
1757	delete $cf::MAP{$self->path};	2524	delete $cf::MAP{$self->path};
1758		2525
1759	$self->unlink_save;	2526	$self->unlink_save;
1760		2527
1761	bless $self, "cf::map";	2528	bless $self, "cf::map::wrap";
1762	delete $self->{deny_reset};	2529	delete $self->{deny_reset};
1763	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1764	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1766		2533
1767	$cf::MAP{$self->path} = $self;	2534	$cf::MAP{$self->path} = $self;
		2535	}
1768		2536
1769	$self->reset; # polite request, might not happen	2537	$self->reset; # polite request, might not happen
		2538	}
		2539
		2540	=item $maps = cf::map::tmp_maps
		2541
		2542	Returns an arrayref with all map paths of currently instantiated and saved
		2543	maps. May block.
		2544
		2545	=cut
		2546
		2547	sub tmp_maps() {
		2548	[
		2549	map {
		2550	utf8::decode $_;
		2551	/\.map$/
		2552	? normalise $_
		2553	: ()
		2554	} @{ aio_readdir $TMPDIR or [] }
		2555	]
		2556	}
		2557
		2558	=item $maps = cf::map::random_maps
		2559
		2560	Returns an arrayref with all map paths of currently instantiated and saved
		2561	random maps. May block.
		2562
		2563	=cut
		2564
		2565	sub random_maps() {
		2566	[
		2567	map {
		2568	utf8::decode $_;
		2569	/\.map$/
		2570	? normalise "?random/$_"
		2571	: ()
		2572	} @{ aio_readdir $RANDOMDIR or [] }
		2573	]
1770	}	2574	}
1771		2575
1772	=item cf::map::unique_maps	2576	=item cf::map::unique_maps
1773		2577
1774	Returns an arrayref of paths of all shared maps that have	2578	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2579	instantiated unique items. May block.
1776		2580
1777	=cut	2581	=cut
1778		2582
1779	sub unique_maps() {	2583	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2584	[
1781	or return;	2585	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2586	utf8::decode $_;
1787	next if /\.pst$/;	2587	s/\.map$//; # TODO future compatibility hack
1788	next unless /^$PATH_SEP/o;	2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1789		2589	? ()
1790	push @paths, cf::map::normalise $_;	2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2592	]
1792
1793	\@paths
1794	}	2593	}
1795		2594
1796	package cf;	2595	=item cf::map::static_maps
		2596
		2597	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2598	file in the shared directory excluding F</styles> and F</editor>). May
		2599	block.
		2600
		2601	=cut
		2602
		2603	sub static_maps() {
		2604	my @dirs = "";
		2605	my @maps;
		2606
		2607	while (@dirs) {
		2608	my $dir = shift @dirs;
		2609
		2610	next if $dir eq "/styles" || $dir eq "/editor";
		2611
		2612	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2613	or return;
		2614
		2615	for (@$files) {
		2616	s/\.map$// or next;
		2617	utf8::decode $_;
		2618	push @maps, "$dir/$_";
		2619	}
		2620
		2621	push @dirs, map "$dir/$_", @$dirs;
		2622	}
		2623
		2624	\@maps
		2625	}
1797		2626
1798	=back	2627	=back
1799		2628
1800	=head3 cf::object	2629	=head3 cf::object
1801		2630
…		…
1805		2634
1806	=over 4	2635	=over 4
1807		2636
1808	=item $ob->inv_recursive	2637	=item $ob->inv_recursive
1809		2638
1810	Returns the inventory of the object _and_ their inventories, recursively.	2639	Returns the inventory of the object I<and> their inventories, recursively,
		2640	but I<not> the object itself.
1811		2641
1812	=cut	2642	=cut
1813		2643
1814	sub inv_recursive_;	2644	sub inv_recursive_;
1815	sub inv_recursive_ {	2645	sub inv_recursive_ {
…		…
1818		2648
1819	sub inv_recursive {	2649	sub inv_recursive {
1820	inv_recursive_ inv $_[0]	2650	inv_recursive_ inv $_[0]
1821	}	2651	}
1822		2652
		2653	=item $ref = $ob->ref
		2654
		2655	Creates and returns a persistent reference to an object that can be stored as a string.
		2656
		2657	=item $ob = cf::object::deref ($refstring)
		2658
		2659	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2660	even if the object actually exists. May block.
		2661
		2662	=cut
		2663
		2664	sub deref {
		2665	my ($ref) = @_;
		2666
		2667	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2668	my ($uuid, $name) = ($1, $2);
		2669	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2670	or return;
		2671	$pl->ob->uuid eq $uuid
		2672	or return;
		2673
		2674	$pl->ob
		2675	} else {
		2676	warn "$ref: cannot resolve object reference\n";
		2677	undef
		2678	}
		2679	}
		2680
1823	package cf;	2681	package cf;
1824		2682
1825	=back	2683	=back
1826		2684
1827	=head3 cf::object::player	2685	=head3 cf::object::player
…		…
1833	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2691	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1834	can be C<undef>. Does the right thing when the player is currently in a	2692	can be C<undef>. Does the right thing when the player is currently in a
1835	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1836		2694
1837	=cut	2695	=cut
		2696
		2697	our $SAY_CHANNEL = {
		2698	id => "say",
		2699	title => "Map",
		2700	reply => "say ",
		2701	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2702	};
		2703
		2704	our $CHAT_CHANNEL = {
		2705	id => "chat",
		2706	title => "Chat",
		2707	reply => "chat ",
		2708	tooltip => "Player chat and shouts, global to the server.",
		2709	};
1838		2710
1839	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1840	# with dialog boxes.	2712	# with dialog boxes.
1841	#TODO: the first argument must go, split into a $npc->reply_to ( method	2713	#TODO: the first argument must go, split into a $npc->reply_to ( method
1842	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1844		2716
1845	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1846		2718
1847	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1849	} else {	2722	} else {
		2723	my $pl = $self->contr;
		2724
		2725	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2726	my $dialog = $pl->{npc_dialog};
		2727	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2728
		2729	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1852	}	2733	}
		2734	}
		2735
		2736	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2737
		2738	=cut
		2739
		2740	sub cf::object::send_msg {
		2741	my $pl = shift->contr
		2742	or return;
		2743	$pl->send_msg (@_);
1853	}	2744	}
1854		2745
1855	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1856		2747
1857	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1870		2761
1871	=item $player_object->enter_link	2762	=item $player_object->enter_link
1872		2763
1873	Freezes the player and moves him/her to a special map (C<{link}>).	2764	Freezes the player and moves him/her to a special map (C<{link}>).
1874		2765
1875	The player should be reasonably safe there for short amounts of time. You	2766	The player should be reasonably safe there for short amounts of time (e.g.
1876	I<MUST> call C<leave_link> as soon as possible, though.	2767	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2768	though, as the player cannot control the character while it is on the link
		2769	map.
1877		2770
1878	Will never block.	2771	Will never block.
1879		2772
1880	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1881		2774
…		…
1901	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1902	my ($self) = @_;	2795	my ($self) = @_;
1903		2796
1904	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1905		2798
		2799	++$self->{_link_recursion};
		2800
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2802
1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1910		2805
1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1912	}	2807	}
1913		2808
1914	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1916		2813
1917	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1918		2815
1919	unless ($map) {	2816	unless ($map) {
1920	# restore original map position	2817	# restore original map position
…		…
1931	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1932	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1933		2830
1934	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1937		2834
1938	$map->load;	2835	$map->load;
1939	$map->load_diag;
1940		2836
1941	return unless $self->contr->active;	2837	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2838
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2839	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2840	if ($self->enter_map ($map, $x, $y)) {
1946	}	2841	# entering was successful
1947		2842	delete $self->{_link_recursion};
1948	cf::player->attach (	2843	# only activate afterwards, to support waiting in hooks
1949	on_logout => sub {	2844	$self->activate_recursive;
1950	my ($pl) = @_;
1951
1952	# abort map switching before logout
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},	2845	}
1959	on_login => sub {
1960	my ($pl) = @_;
1961		2846
1962	# try to abort aborted map switching on player login :)	2847	}
1963	# should happen only on crashes
1964	if ($pl->ob->{_link_pos}) {
1965	$pl->ob->enter_link;
1966	(async {
1967	$pl->ob->reply (undef,
1968	"There was an internal problem at your last logout, "
1969	. "the server will try to bring you to your intended destination in a second.",
1970	cf::NDI_RED);
1971	# we need this sleep as the login has a concurrent enter_exit running
1972	# and this sleep increases chances of the player not ending up in scorn
1973	Coro::Timer::sleep 1;
1974	$pl->ob->leave_link;
1975	})->prio (2);
1976	}
1977	},
1978	);
1979		2848
1980	=item $player_object->goto ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1981		2850
		2851	Moves the player to the given map-path and coordinates by first freezing
		2852	her, loading and preparing them map, calling the provided $check callback
		2853	that has to return the map if sucecssful, and then unfreezes the player on
		2854	the new (success) or old (failed) map position. In either case, $done will
		2855	be called at the end of this process.
		2856
		2857	Note that $check will be called with a potentially non-loaded map, so if
		2858	it needs a loaded map it has to call C<< ->load >>.
		2859
1982	=cut	2860	=cut
		2861
		2862	our $GOTOGEN;
1983		2863
1984	sub cf::object::player::goto {	2864	sub cf::object::player::goto {
1985	my ($self, $path, $x, $y) = @_;	2865	my ($self, $path, $x, $y, $check, $done) = @_;
		2866
		2867	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2868	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2869	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2870	($path, $x, $y) = @$EMERGENCY_POSITION;
		2871	}
		2872
		2873	# do generation counting so two concurrent goto's will be executed in-order
		2874	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1986		2875
1987	$self->enter_link;	2876	$self->enter_link;
1988		2877
1989	(async {	2878	(async {
		2879	$Coro::current->{desc} = "player::goto $path $x $y";
		2880
		2881	# *tag paths override both path and x|y
		2882	if ($path =~ /^\*(.*)$/) {
		2883	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2884	my $ob = $obs[rand @obs];
		2885
		2886	# see if we actually can go there
		2887	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2888	$ob = $obs[rand @obs];
		2889	} else {
		2890	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2891	}
		2892	# else put us there anyways for now #d#
		2893
		2894	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2895	} else {
		2896	($path, $x, $y) = (undef, undef, undef);
		2897	}
		2898	}
		2899
1990	my $map = eval {	2900	my $map = eval {
1991	my $map = cf::map::find $path;	2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
		2903	if ($map) {
1992	$map = $map->customise_for ($self) if $map;	2904	$map = $map->customise_for ($self);
		2905	$map = $check->($map, $x, $y, $self) if $check && $map;
		2906	} else {
		2907	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2908	}
		2909
1993	$map	2910	$map
		2911	};
		2912
		2913	if ($@) {
		2914	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2915	LOG llevError | logBacktrace, Carp::longmess $@;
1994	} or	2916	}
1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1996		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1997	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1998	})->prio (1);	2924	})->prio (1);
1999	}	2925	}
2000		2926
2001	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
2002		2928
…		…
2022	}	2948	}
2023		2949
2024	sub prepare_random_map {	2950	sub prepare_random_map {
2025	my ($exit) = @_;	2951	my ($exit) = @_;
2026		2952
2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
2028
2029	# all this does is basically replace the /! path by	2953	# all this does is basically replace the /! path by
2030	# a new random map path (?random/...) with a seed	2954	# a new random map path (?random/...) with a seed
2031	# that depends on the exit object	2955	# that depends on the exit object
2032		2956
2033	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
…		…
2035	if ($exit->map) {	2959	if ($exit->map) {
2036	$rmp->{region} = $exit->region->name;	2960	$rmp->{region} = $exit->region->name;
2037	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
2038	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
2039	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
2040	}	2966	}
2041		2967
2042	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
2043		2969
2044	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2045	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
2046	my $meta = "$RANDOMDIR/$md5.meta";	2972	my $meta = "$RANDOMDIR/$md5.meta";
2047		2973
2048	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2049	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
2050	undef $fh;	2976	undef $fh;
2051	aio_rename "$meta~", $meta;	2977	aio_rename "$meta~", $meta;
2052		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
2053	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
2054	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
2055	}	2985	}
2056	}	2986	}
2057		2987
2058	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
2059	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
2060		2990
2061	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
2062		2992
2063	if ($exit->slaying eq "/!") {
2064	#TODO: this should de-fi-ni-te-ly not be a sync-job
2065	# the problem is that $exit might not survive long enough
2066	# so it needs to be done right now, right here
2067	cf::sync_job { prepare_random_map $exit };
2068	}
2069
2070	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2071	my $hp = $exit->stats->hp;
2072	my $sp = $exit->stats->sp;
2073
2074	$self->enter_link;	2993	$self->enter_link;
2075		2994
2076	(async {	2995	(async {
2077	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
2078	unless (eval {	2998	unless (eval {
		2999	$self->deactivate_recursive; # just to be sure
		3000
		3001	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3002	my $x = $exit->stats->hp;
		3003	my $y = $exit->stats->sp;
		3004
		3005	# special map handling
		3006	my $slaying = $exit->slaying;
		3007
		3008	# special map handling
		3009	if ($slaying eq "/!") {
		3010	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3011
		3012	prepare_random_map $exit
		3013	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3014
		3015	$map = $exit->slaying;
		3016
		3017	} elsif ($slaying eq '!up') {
		3018	$map = $exit->map->tile_path (cf::TILE_UP);
		3019	$x = $exit->x;
		3020	$y = $exit->y;
		3021
		3022	} elsif ($slaying eq '!down') {
		3023	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3024	$x = $exit->x;
		3025	$y = $exit->y;
		3026	}
		3027
2079	$self->goto ($slaying, $hp, $sp);	3028	$self->goto ($map, $x, $y);
2080		3029
		3030	# if exit is damned, update players death & WoR home-position
		3031	$self->contr->savebed ($map, $x, $y)
		3032	if $exit->flag (cf::FLAG_DAMNED);
		3033
2081	1;	3034	1
2082	}) {	3035	}) {
2083	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
2084	. "I'll try to bring you back to the map you were before. "	3037	. "I'll try to bring you back to the map you were before. "
2085	. "Please report this to the dungeon master!",	3038	. "Please report this to the dungeon master!",
2086	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
2087		3040
2088	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
2089	$self->leave_link;	3042	$self->leave_link;
2090	}	3043	}
2091	})->prio (1);	3044	})->prio (1);
2092	}	3045	}
2093		3046
…		…
2107		3060
2108	utf8::encode $text;	3061	utf8::encode $text;
2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3062	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2110	}	3063	}
2111		3064
		3065	=item $client->send_big_packet ($pkt)
		3066
		3067	Like C<send_packet>, but tries to compress large packets, and fragments
		3068	them as required.
		3069
		3070	=cut
		3071
		3072	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3073
		3074	sub cf::client::send_big_packet {
		3075	my ($self, $pkt) = @_;
		3076
		3077	# try lzf for large packets
		3078	$pkt = "lzf " . Compress::LZF::compress $pkt
		3079	if 1024 <= length $pkt and $self->{can_lzf};
		3080
		3081	# split very large packets
		3082	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3083	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3084	$pkt = "frag";
		3085	}
		3086
		3087	$self->send_packet ($pkt);
		3088	}
		3089
		3090	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3091
		3092	Send a drawinfo or msg packet to the client, formatting the msg for the
		3093	client if neccessary. C<$type> should be a string identifying the type of
		3094	the message, with C<log> being the default. If C<$color> is negative, suppress
		3095	the message unless the client supports the msg packet.
		3096
		3097	=cut
		3098
		3099	# non-persistent channels (usually the info channel)
		3100	our %CHANNEL = (
		3101	"c/motd" => {
		3102	id => "infobox",
		3103	title => "MOTD",
		3104	reply => undef,
		3105	tooltip => "The message of the day",
		3106	},
		3107	"c/identify" => {
		3108	id => "infobox",
		3109	title => "Identify",
		3110	reply => undef,
		3111	tooltip => "Items recently identified",
		3112	},
		3113	"c/examine" => {
		3114	id => "infobox",
		3115	title => "Examine",
		3116	reply => undef,
		3117	tooltip => "Signs and other items you examined",
		3118	},
		3119	"c/shopinfo" => {
		3120	id => "infobox",
		3121	title => "Shop Info",
		3122	reply => undef,
		3123	tooltip => "What your bargaining skill tells you about the shop",
		3124	},
		3125	"c/book" => {
		3126	id => "infobox",
		3127	title => "Book",
		3128	reply => undef,
		3129	tooltip => "The contents of a note or book",
		3130	},
		3131	"c/lookat" => {
		3132	id => "infobox",
		3133	title => "Look",
		3134	reply => undef,
		3135	tooltip => "What you saw there",
		3136	},
		3137	"c/who" => {
		3138	id => "infobox",
		3139	title => "Players",
		3140	reply => undef,
		3141	tooltip => "Shows players who are currently online",
		3142	},
		3143	"c/body" => {
		3144	id => "infobox",
		3145	title => "Body Parts",
		3146	reply => undef,
		3147	tooltip => "Shows which body parts you posess and are available",
		3148	},
		3149	"c/statistics" => {
		3150	id => "infobox",
		3151	title => "Statistics",
		3152	reply => undef,
		3153	tooltip => "Shows your primary statistics",
		3154	},
		3155	"c/skills" => {
		3156	id => "infobox",
		3157	title => "Skills",
		3158	reply => undef,
		3159	tooltip => "Shows your experience per skill and item power",
		3160	},
		3161	"c/shopitems" => {
		3162	id => "infobox",
		3163	title => "Shop Items",
		3164	reply => undef,
		3165	tooltip => "Shows the items currently for sale in this shop",
		3166	},
		3167	"c/resistances" => {
		3168	id => "infobox",
		3169	title => "Resistances",
		3170	reply => undef,
		3171	tooltip => "Shows your resistances",
		3172	},
		3173	"c/pets" => {
		3174	id => "infobox",
		3175	title => "Pets",
		3176	reply => undef,
		3177	tooltip => "Shows information abotu your pets/a specific pet",
		3178	},
		3179	"c/perceiveself" => {
		3180	id => "infobox",
		3181	title => "Perceive Self",
		3182	reply => undef,
		3183	tooltip => "You gained detailed knowledge about yourself",
		3184	},
		3185	"c/uptime" => {
		3186	id => "infobox",
		3187	title => "Uptime",
		3188	reply => undef,
		3189	tooltip => "How long the server has been running since last restart",
		3190	},
		3191	"c/mapinfo" => {
		3192	id => "infobox",
		3193	title => "Map Info",
		3194	reply => undef,
		3195	tooltip => "Information related to the maps",
		3196	},
		3197	"c/party" => {
		3198	id => "party",
		3199	title => "Party",
		3200	reply => "gsay ",
		3201	tooltip => "Messages and chat related to your party",
		3202	},
		3203	"c/death" => {
		3204	id => "death",
		3205	title => "Death",
		3206	reply => undef,
		3207	tooltip => "Reason for and more info about your most recent death",
		3208	},
		3209	"c/say" => $SAY_CHANNEL,
		3210	"c/chat" => $CHAT_CHANNEL,
		3211	);
		3212
		3213	sub cf::client::send_msg {
		3214	my ($self, $channel, $msg, $color, @extra) = @_;
		3215
		3216	$msg = $self->pl->expand_cfpod ($msg)
		3217	unless $color & cf::NDI_VERBATIM;
		3218
		3219	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3220
		3221	# check predefined channels, for the benefit of C
		3222	if ($CHANNEL{$channel}) {
		3223	$channel = $CHANNEL{$channel};
		3224
		3225	$self->ext_msg (channel_info => $channel);
		3226	$channel = $channel->{id};
		3227
		3228	} elsif (ref $channel) {
		3229	# send meta info to client, if not yet sent
		3230	unless (exists $self->{channel}{$channel->{id}}) {
		3231	$self->{channel}{$channel->{id}} = $channel;
		3232	$self->ext_msg (channel_info => $channel);
		3233	}
		3234
		3235	$channel = $channel->{id};
		3236	}
		3237
		3238	return unless @extra || length $msg;
		3239
		3240	# default colour, mask it out
		3241	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3242	if $color & cf::NDI_DEF;
		3243
		3244	my $pkt = "msg "
		3245	. $self->{json_coder}->encode (
		3246	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3247	);
		3248
		3249	$self->send_big_packet ($pkt);
		3250	}
		3251
2112	=item $client->ext_event ($type, %msg)	3252	=item $client->ext_msg ($type, @msg)
2113		3253
2114	Sends an exti event to the client.	3254	Sends an ext event to the client.
2115		3255
2116	=cut	3256	=cut
2117		3257
2118	sub cf::client::ext_event($$%) {	3258	sub cf::client::ext_msg($$@) {
2119	my ($self, $type, %msg) = @_;	3259	my ($self, $type, @msg) = @_;
2120		3260
2121	$msg{msgtype} = "event_$type";	3261	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2122	$self->send_packet ("ext " . cf::to_json \%msg);
2123	}	3262	}
2124		3263
2125	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
2126		3265
2127	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3267	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2129	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3268	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2130		3269
2131	Queries can fail, so check the return code. Or don't, as queries will become	3270	Queries can fail, so check the return code. Or don't, as queries will
2132	reliable at some point in the future.	3271	become reliable at some point in the future.
2133		3272
2134	=cut	3273	=cut
2135		3274
2136	sub cf::client::query {	3275	sub cf::client::query {
2137	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
2145	utf8::encode $text;	3284	utf8::encode $text;
2146	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2147		3286
2148	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
2149	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
2150	}	3291	}
2151		3292
2152	cf::client->attach (	3293	cf::client->attach (
		3294	on_connect => sub {
		3295	my ($ns) = @_;
		3296
		3297	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3298	},
2153	on_reply => sub {	3299	on_reply => sub {
2154	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
2155		3301
2156	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
2157	# get handled first	3303	# get handled first
…		…
2169	} else {	3315	} else {
2170	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2171	}	3317	}
2172	}	3318	}
2173	},	3319	},
		3320	on_exticmd => sub {
		3321	my ($ns, $buf) = @_;
		3322
		3323	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3324
		3325	if (ref $msg) {
		3326	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3327
		3328	if (my $cb = $EXTIACMD{$type}) {
		3329	$cb->(
		3330	$ns,
		3331	sub {
		3332	$ns->ext_msg ("reply-$reply", @_)
		3333	if $reply;
		3334	},
		3335	@payload
		3336	);
		3337	} else {
		3338	my @reply;
		3339
		3340	if (my $cb = $EXTICMD{$type}) {
		3341	@reply = $cb->($ns, @payload);
		3342	}
		3343
		3344	$ns->ext_msg ("reply-$reply", @reply)
		3345	if $reply;
		3346	}
		3347	} else {
		3348	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3349	}
		3350
		3351	cf::override;
		3352	},
2174	);	3353	);
2175		3354
2176	=item $client->async (\&cb)	3355	=item $client->async (\&cb)
2177		3356
2178	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
…		…
2194		3373
2195	$coro	3374	$coro
2196	}	3375	}
2197		3376
2198	cf::client->attach (	3377	cf::client->attach (
2199	on_destroy => sub {	3378	on_client_destroy => sub {
2200	my ($ns) = @_;	3379	my ($ns) = @_;
2201		3380
2202	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2203	},	3382	},
2204	);	3383	);
…		…
2219	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
2220	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
2221		3400
2222	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
2223		3402
2224	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3403	$safe->permit_only (Opcode::opset qw(
		3404	:base_core :base_mem :base_orig :base_math :base_loop
		3405	grepstart grepwhile mapstart mapwhile
		3406	sort time
		3407	));
2225		3408
2226	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
2227		3410
2228	=pod	3411	=pod
2229		3412
2230	The following functions and methods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
2231		3414
2232	cf::object contr pay_amount pay_player map	3415	cf::object
		3416	contr pay_amount pay_player map x y force_find force_add destroy
		3417	insert remove name archname title slaying race decrease split
		3418	value
		3419
2233	cf::object::player player	3420	cf::object::player
2234	cf::player peaceful	3421	player
2235	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
2236		3428
2237	=cut	3429	=cut
2238		3430
2239	for (	3431	for (
2240	["cf::object" => qw(contr pay_amount pay_player map)],	3432	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3433	insert remove inv nrof name archname title slaying race
		3434	decrease split destroy change_exp value msg lore send_msg)],
2241	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
2242	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
2243	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
2244	) {	3438	) {
2245	no strict 'refs';
2246	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
2247	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2248	for @funs;	3441	for @funs;
2249	}	3442	}
2250		3443
…		…
2265		3458
2266	my $qcode = $code;	3459	my $qcode = $code;
2267	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2268	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
2269		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
2270	local $_;	3466	local $_;
2271	local @safe::cf::_safe_eval_args = values %vars;
2272		3467
2273	my $eval =	3468	my $eval =
2274	"do {\n"	3469	"do {\n"
2275	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2276	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
2277	. $code	3472	. $code
2278	. "\n}"	3473	. "\n}"
2279	;	3474	;
2280		3475
		3476	if ($CFG{safe_eval}) {
2281	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
2282	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2283	sub_generation_inc;	3480	sub_generation_inc;
		3481	} else {
		3482	local @cf::_safe_eval_args = values %vars;
		3483	@res = wantarray ? eval eval : scalar eval $eval;
		3484	}
2284		3485
2285	if ($@) {	3486	if ($@) {
2286	warn "$@";	3487	warn "$@",
2287	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
2288	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
2289	}	3490	}
2290		3491
2291	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
2292	}	3493	}
2293		3494
…		…
2307	=cut	3508	=cut
2308		3509
2309	sub register_script_function {	3510	sub register_script_function {
2310	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
2311		3512
2312	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
2313	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
2314	}	3515	}
2315		3516
2316	=back	3517	=back
2317		3518
2318	=cut	3519	=cut
2319
2320	#############################################################################
2321
2322	=head2 EXTENSION DATABASE SUPPORT
2323
2324	Crossfire maintains a very simple database for extension use. It can
2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2326	convert to/from binary).
2327
2328	The parameter C<$family> should best start with the name of the extension
2329	using it, it should be unique.
2330
2331	=over 4
2332
2333	=item $value = cf::db_get $family => $key
2334
2335	Returns a single value from the database.
2336
2337	=item cf::db_put $family => $key => $value
2338
2339	Stores the given C<$value> in the family.
2340
2341	=cut
2342
2343	our $DB;
2344
2345	sub db_init {
2346	unless ($DB) {
2347	$DB = BDB::db_create $DB_ENV;
2348
2349	cf::sync_job {
2350	eval {
2351	$DB->set_flags (BDB::CHKSUM);
2352
2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2355	cf::cleanup "db_open(db): $!" if $!;
2356	};
2357	cf::cleanup "db_open(db): $@" if $@;
2358	};
2359	}
2360	}
2361
2362	sub db_get($$) {
2363	my $key = "$_[0]/$_[1]";
2364
2365	cf::sync_job {
2366	BDB::db_get $DB, undef, $key, my $data;
2367
2368	$! ? ()
2369	: $data
2370	}
2371	}
2372
2373	sub db_put($$$) {
2374	BDB::dbreq_pri 4;
2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2376	}
2377
2378	=item cf::cache $id => [$paths...], $processversion => $process
2379
2380	Generic caching function that returns the value of the resource $id,
2381	caching and regenerating as required.
2382
2383	This function can block.
2384
2385	=cut
2386
2387	sub cache {
2388	my ($id, $src, $processversion, $process) = @_;
2389
2390	my $meta =
2391	join "\x00",
2392	$processversion,
2393	map {
2394	aio_stat $_
2395	and Carp::croak "$_: $!";
2396
2397	($_, (stat _)[7,9])
2398	} @$src;
2399
2400	my $dbmeta = db_get cache => "$id/meta";
2401	if ($dbmeta ne $meta) {
2402	# changed, we may need to process
2403
2404	my @data;
2405	my $md5;
2406
2407	for (0 .. $#$src) {
2408	0 <= aio_load $src->[$_], $data[$_]
2409	or Carp::croak "$src->[$_]: $!";
2410	}
2411
2412	# if processing is expensive, check
2413	# checksum first
2414	if (1) {
2415	$md5 =
2416	join "\x00",
2417	$processversion,
2418	map {
2419	Coro::cede;
2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
2421	} 0.. $#$src;
2422
2423
2424	my $dbmd5 = db_get cache => "$id/md5";
2425	if ($dbmd5 eq $md5) {
2426	db_put cache => "$id/meta", $meta;
2427
2428	return db_get cache => "$id/data";
2429	}
2430	}
2431
2432	my $t1 = Time::HiRes::time;
2433	my $data = $process->(\@data);
2434	my $t2 = Time::HiRes::time;
2435
2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2437
2438	db_put cache => "$id/data", $data;
2439	db_put cache => "$id/md5" , $md5;
2440	db_put cache => "$id/meta", $meta;
2441
2442	return $data;
2443	}
2444
2445	db_get cache => "$id/data"
2446	}
2447
2448	=item fork_call { }, $args
2449
2450	Executes the given code block with the given arguments in a seperate
2451	process, returning the results. Everything must be serialisable with
2452	Coro::Storable. May, of course, block. Note that the executed sub may
2453	never block itself or use any form of Event handling.
2454
2455	=cut
2456
2457	sub fork_call(&@) {
2458	my ($cb, @args) = @_;
2459
2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2461	# or die "socketpair: $!";
2462	pipe my $fh1, my $fh2
2463	or die "pipe: $!";
2464
2465	if (my $pid = fork) {
2466	close $fh2;
2467
2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2469	$res = Coro::Storable::thaw $res;
2470
2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2472
2473	die $$res unless "ARRAY" eq ref $res;
2474
2475	return wantarray ? @$res : $res->[-1];
2476	} else {
2477	reset_signals;
2478	local $SIG{__WARN__};
2479	local $SIG{__DIE__};
2480	eval {
2481	close $fh1;
2482
2483	my @res = eval { $cb->(@args) };
2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2485	};
2486
2487	warn $@ if $@;
2488	_exit 0;
2489	}
2490	}
2491
2492
2493		3520
2494	#############################################################################	3521	#############################################################################
2495	# the server's init and main functions	3522	# the server's init and main functions
2496		3523
		3524	{
		3525	package cf::face;
		3526
		3527	our %HASH; # hash => idx
		3528	our @DATA; # dynamically-created facedata, only faceste 0 used
		3529	our @FOFS; # file offset, if > 0
		3530	our @SIZE; # size of face, in octets
		3531	our @META; # meta hash of face, if any
		3532	our $DATAFH; # facedata filehandle
		3533
		3534	# internal api, not finalised
		3535	sub set {
		3536	my ($name, $type, $data) = @_;
		3537
		3538	my $idx = cf::face::find $name;
		3539
		3540	if ($idx) {
		3541	delete $HASH{cf::face::get_chksum $idx};
		3542	} else {
		3543	$idx = cf::face::alloc $name;
		3544	}
		3545
		3546	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3547
		3548	cf::face::set_type $idx, $type;
		3549	cf::face::set_csum $idx, 0, $hash;
		3550
		3551	# we need to destroy the SV itself, not just modify it, as a running ix
		3552	# might hold a reference to it: "delete" achieves that.
		3553	delete $FOFS[0][$idx];
		3554	delete $DATA[0][$idx];
		3555	$DATA[0][$idx] = $data;
		3556	$SIZE[0][$idx] = length $data;
		3557	delete $META[$idx];
		3558	$HASH{$hash} = $idx;#d#
		3559
		3560	$idx
		3561	}
		3562
		3563	sub _get_data($$$) {
		3564	my ($idx, $set, $cb) = @_;
		3565
		3566	if (defined $DATA[$set][$idx]) {
		3567	$cb->($DATA[$set][$idx]);
		3568	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3569	my $size = $SIZE[$set][$idx];
		3570	my $buf;
		3571	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3572	if ($_[0] == $size) {
		3573	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3574	$cb->($buf);
		3575	} else {
		3576	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3577	}
		3578	};
		3579	} else {
		3580	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3581	}
		3582	}
		3583
		3584	# rather ineffient
		3585	sub cf::face::get_data($;$) {
		3586	my ($idx, $set) = @_;
		3587
		3588	_get_data $idx, $set, Coro::rouse_cb;
		3589	Coro::rouse_wait
		3590	}
		3591
		3592	sub cf::face::ix {
		3593	my ($ns, $set, $idx, $pri) = @_;
		3594
		3595	_get_data $idx, $set, sub {
		3596	$ns->ix_send ($idx, $pri, $_[0]);
		3597	};
		3598	}
		3599	}
		3600
2497	sub load_facedata($) {	3601	sub load_facedata($) {
2498	my ($path) = @_;	3602	my ($path) = @_;
2499		3603
		3604	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3605
2500	warn "loading facedata from $path\n";	3606	trace "loading facedata from $path\n";
2501		3607
2502	my $facedata;	3608	my $facedata = decode_storable load_file "$path/faceinfo";
2503	0 < aio_load $path, $facedata
2504	or die "$path: $!";
2505
2506	$facedata = Coro::Storable::thaw $facedata;
2507		3609
2508	$facedata->{version} == 2	3610	$facedata->{version} == 2
2509	or cf::cleanup "$path: version mismatch, cannot proceed.";	3611	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
		3612
		3613	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3614	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3615
		3616	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3617
		3618	# BEGIN ATOMIC
		3619	# from here on, everything must be atomic - no thread switch allowed
		3620	my $t1 = EV::time;
2510		3621
2511	{	3622	{
2512	my $faces = $facedata->{faceinfo};	3623	my $faces = $facedata->{faceinfo};
2513		3624
2514	while (my ($face, $info) = each %$faces) {	3625	for my $face (sort keys %$faces) {
		3626	my $info = $faces->{$face};
2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3627	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3628
2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3629	cf::face::set_visibility $idx, $info->{visibility};
2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3630	cf::face::set_magicmap $idx, $info->{magicmap};
2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3631	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
2519	Coro::cede;	3632	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3633	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3634	$cf::face::HASH{$info->{hash64}} = $idx;
		3635	delete $cf::face::META[$idx];
2520	}	3636	}
2521		3637
2522	while (my ($face, $info) = each %$faces) {	3638	while (my ($face, $info) = each %$faces) {
2523	next unless $info->{smooth};	3639	next unless $info->{smooth};
		3640
2524	my $idx = cf::face::find $face	3641	my $idx = cf::face::find $face
2525	or next;	3642	or next;
		3643
2526	if (my $smooth = cf::face::find $info->{smooth}) {	3644	if (my $smooth = cf::face::find $info->{smooth}) {
		3645	cf::face::set_smooth $idx, $smooth;
2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3646	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2528	} else {	3647	} else {
2529	warn "smooth face '$info->{smooth}' not found for face '$face'";	3648	error "smooth face '$info->{smooth}' not found for face '$face'";
2530	}	3649	}
2531	Coro::cede;
2532	}	3650	}
2533	}	3651	}
2534		3652
2535	{	3653	{
2536	my $anims = $facedata->{animinfo};	3654	my $anims = $facedata->{animinfo};
2537		3655
2538	while (my ($anim, $info) = each %$anims) {	3656	while (my ($anim, $info) = each %$anims) {
2539	cf::anim::set $anim, $info->{frames}, $info->{facings};	3657	cf::anim::set $anim, $info->{frames}, $info->{facings};
2540	Coro::cede;
2541	}	3658	}
2542		3659
2543	cf::anim::invalidate_all; # d'oh	3660	cf::anim::invalidate_all; # d'oh
2544	}	3661	}
2545		3662
		3663	{
		3664	my $res = $facedata->{resource};
		3665
		3666	while (my ($name, $info) = each %$res) {
		3667	if (defined (my $type = $info->{type})) {
		3668	# TODO: different hash - must free and use new index, or cache ixface data queue
		3669	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3670
		3671	cf::face::set_type $idx, $type;
		3672	cf::face::set_csum $idx, 0, $info->{hash};
		3673	$cf::face::SIZE[0][$idx] = $info->{size};
		3674	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3675	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3676	$cf::face::HASH{$info->{hash}} = $idx;
		3677	} else {
		3678	# $RESOURCE{$name} = $info; # unused
		3679	}
		3680	}
		3681	}
		3682
		3683	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3684
		3685	# HACK to clear player env face cache, we need some signal framework
		3686	# for this (global event?)
		3687	%ext::player_env::MUSIC_FACE_CACHE = ();
		3688
		3689	# END ATOMIC
		3690
		3691	cf::debug "facedata atomic update time ", EV::time - $t1;
		3692
		3693	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3694
		3695	aio_close $fh if $fh; # close old facedata
		3696
2546	1	3697	1
2547	}	3698	}
2548		3699
		3700	register_exticmd fx_want => sub {
		3701	my ($ns, $want) = @_;
		3702
		3703	while (my ($k, $v) = each %$want) {
		3704	$ns->fx_want ($k, $v);
		3705	}
		3706	};
		3707
		3708	sub load_resource_file($) {
		3709	my $guard = lock_acquire "load_resource_file";
		3710
		3711	my $status = load_resource_file_ $_[0];
		3712	get_slot 0.1, 100;
		3713	cf::arch::commit_load;
		3714
		3715	$status
		3716	}
		3717
		3718	sub reload_exp_table {
		3719	_reload_exp_table;
		3720
		3721	cf::face::set
		3722	"res/exp_table" => FT_RSRC,
		3723	JSON::XS->new->utf8->canonical->encode (
		3724	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3725	);
		3726	}
		3727
		3728	sub reload_materials {
		3729	_reload_materials;
		3730	}
		3731
2549	sub reload_regions {	3732	sub reload_regions {
		3733	# HACK to clear player env face cache, we need some signal framework
		3734	# for this (global event?)
		3735	%ext::player_env::MUSIC_FACE_CACHE = ();
		3736
2550	load_resource_file "$MAPDIR/regions"	3737	load_resource_file "$MAPDIR/regions"
2551	or die "unable to load regions file\n";	3738	or die "unable to load regions file\n";
		3739
		3740	for (cf::region::list) {
		3741	$_->{match} = qr/$_->{match}/
		3742	if exists $_->{match};
		3743	}
2552	}	3744	}
2553		3745
2554	sub reload_facedata {	3746	sub reload_facedata {
2555	load_facedata "$DATADIR/facedata"	3747	load_facedata $DATADIR
2556	or die "unable to load facedata\n";	3748	or die "unable to load facedata\n";
2557	}	3749	}
2558		3750
2559	sub reload_archetypes {	3751	sub reload_archetypes {
2560	load_resource_file "$DATADIR/archetypes"	3752	load_resource_file "$DATADIR/archetypes"
2561	or die "unable to load archetypes\n";	3753	or die "unable to load archetypes\n";
		3754
		3755	cf::face::set
		3756	"res/skill_info" => FT_RSRC,
		3757	JSON::XS->new->utf8->canonical->encode (
		3758	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3759	);
		3760
		3761	cf::face::set
		3762	"res/spell_paths" => FT_RSRC,
		3763	JSON::XS->new->utf8->canonical->encode (
		3764	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3765	);
2562	}	3766	}
2563		3767
2564	sub reload_treasures {	3768	sub reload_treasures {
2565	load_resource_file "$DATADIR/treasures"	3769	load_resource_file "$DATADIR/treasures"
2566	or die "unable to load treasurelists\n";	3770	or die "unable to load treasurelists\n";
2567	}	3771	}
2568		3772
		3773	sub reload_sound {
		3774	trace "loading sound config from $DATADIR/sound\n";
		3775
		3776	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3777
		3778	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3779	my $sound = $soundconf->{compat}[$_]
		3780	or next;
		3781
		3782	my $face = cf::face::find "sound/$sound->[1]";
		3783	cf::sound::set $sound->[0] => $face;
		3784	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3785	}
		3786
		3787	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3788	my $face = cf::face::find "sound/$v";
		3789	cf::sound::set $k => $face;
		3790	}
		3791	}
		3792
2569	sub reload_resources {	3793	sub reload_resources {
2570	warn "reloading resource files...\n";	3794	trace "reloading resource files...\n";
2571		3795
		3796	reload_materials;
		3797	reload_facedata;
		3798	reload_exp_table;
		3799	reload_sound;
		3800	reload_archetypes;
2572	reload_regions;	3801	reload_regions;
2573	reload_facedata;
2574	reload_archetypes;
2575	reload_treasures;	3802	reload_treasures;
2576		3803
2577	warn "finished reloading resource files\n";	3804	trace "finished reloading resource files\n";
2578	}	3805	}
2579		3806
2580	sub init {	3807	sub reload_config {
2581	reload_resources;	3808	trace "reloading config file...\n";
2582	}
2583		3809
2584	sub cfg_load {	3810	my $config = load_file "$CONFDIR/config";
2585	open my $fh, "<:utf8", "$CONFDIR/config"	3811	utf8::decode $config;
2586	or return;	3812	*CFG = decode_yaml $config;
2587		3813
2588	local $/;
2589	*CFG = YAML::Syck::Load <$fh>;
2590
2591	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3814	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2592		3815
2593	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3816	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2594	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3817	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2595		3818
2596	if (exists $CFG{mlockall}) {	3819	if (exists $CFG{mlockall}) {
…		…
2600	};	3823	};
2601	warn $@ if $@;	3824	warn $@ if $@;
2602	}	3825	}
2603	}	3826	}
2604		3827
		3828	sub pidfile() {
		3829	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3830	or die "$PIDFILE: $!";
		3831	flock $fh, &Fcntl::LOCK_EX
		3832	or die "$PIDFILE: flock: $!";
		3833	$fh
		3834	}
		3835
		3836	# make sure only one server instance is running at any one time
		3837	sub atomic {
		3838	my $fh = pidfile;
		3839
		3840	my $pid = <$fh>;
		3841	kill 9, $pid if $pid > 0;
		3842
		3843	seek $fh, 0, 0;
		3844	print $fh $$;
		3845	}
		3846
		3847	sub main_loop {
		3848	trace "EV::loop starting\n";
		3849	if (1) {
		3850	EV::loop;
		3851	}
		3852	trace "EV::loop returned\n";
		3853	goto &main_loop unless $REALLY_UNLOOP;
		3854	}
		3855
2605	sub main {	3856	sub main {
		3857	cf::init_globals; # initialise logging
		3858
		3859	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3860	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3861	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3862	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3863
		3864	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3865
2606	# we must not ever block the main coroutine	3866	# we must not ever block the main coroutine
2607	local $Coro::idle = sub {	3867	$Coro::idle = sub {
2608	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3868	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2609	(async {	3869	(async {
2610	Event::one_event;	3870	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3871	EV::loop EV::LOOP_ONESHOT;
2611	})->prio (Coro::PRIO_MAX);	3872	})->prio (Coro::PRIO_MAX);
2612	};	3873	};
2613		3874
2614	cfg_load;	3875	evthread_start IO::AIO::poll_fileno;
		3876
		3877	cf::sync_job {
		3878	cf::incloader::init ();
		3879
2615	db_init;	3880	db_init;
		3881
		3882	cf::init_anim;
		3883	cf::init_attackmess;
		3884	cf::init_dynamic;
		3885
		3886	cf::load_settings;
		3887
		3888	reload_resources;
		3889	reload_config;
		3890
		3891	cf::init_uuid;
		3892	cf::init_signals;
		3893	cf::init_skills;
		3894
		3895	cf::init_beforeplay;
		3896
		3897	atomic;
		3898
2616	load_extensions;	3899	load_extensions;
2617		3900
2618	$TICK_WATCHER->start;	3901	utime time, time, $RUNTIMEFILE;
2619	Event::loop;	3902
		3903	# no (long-running) fork's whatsoever before this point(!)
		3904	use POSIX ();
		3905	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3906
		3907	cf::_post_init 0;
		3908	};
		3909
		3910	cf::object::thawer::errors_are_fatal 0;
		3911	info "parse errors in files are no longer fatal from this point on.\n";
		3912
		3913	AE::postpone {
		3914	undef &main; # free gobs of memory :)
		3915	};
		3916
		3917	goto &main_loop;
2620	}	3918	}
2621		3919
2622	#############################################################################	3920	#############################################################################
2623	# initialisation and cleanup	3921	# initialisation and cleanup
2624		3922
2625	# install some emergency cleanup handlers	3923	# install some emergency cleanup handlers
2626	BEGIN {	3924	BEGIN {
		3925	our %SIGWATCHER = ();
2627	for my $signal (qw(INT HUP TERM)) {	3926	for my $signal (qw(INT HUP TERM)) {
2628	Event->signal (	3927	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2629	reentrant => 0,
2630	data => WF_AUTOCANCEL,
2631	signal => $signal,
2632	prio => 0,
2633	cb => sub {
2634	cf::cleanup "SIG$signal";	3928	cf::cleanup "SIG$signal";
2635	},
2636	);	3929	};
		3930	}
		3931	}
		3932
		3933	sub write_runtime_sync {
		3934	my $t0 = AE::time;
		3935
		3936	# first touch the runtime file to show we are still running:
		3937	# the fsync below can take a very very long time.
		3938
		3939	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3940
		3941	my $guard = cf::lock_acquire "write_runtime";
		3942
		3943	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3944	or return;
		3945
		3946	my $value = $cf::RUNTIME + 90 + 10;
		3947	# 10 is the runtime save interval, for a monotonic clock
		3948	# 60 allows for the watchdog to kill the server.
		3949
		3950	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3951	and return;
		3952
		3953	# always fsync - this file is important
		3954	aio_fsync $fh
		3955	and return;
		3956
		3957	# touch it again to show we are up-to-date
		3958	aio_utime $fh, undef, undef;
		3959
		3960	close $fh
		3961	or return;
		3962
		3963	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3964	and return;
		3965
		3966	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3967
2637	}	3968	1
		3969	}
		3970
		3971	our $uuid_lock;
		3972	our $uuid_skip;
		3973
		3974	sub write_uuid_sync($) {
		3975	$uuid_skip ||= $_[0];
		3976
		3977	return if $uuid_lock;
		3978	local $uuid_lock = 1;
		3979
		3980	my $uuid = "$LOCALDIR/uuid";
		3981
		3982	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3983	or return;
		3984
		3985	my $value = uuid_seq uuid_cur;
		3986
		3987	unless ($value) {
		3988	info "cowardly refusing to write zero uuid value!\n";
		3989	return;
		3990	}
		3991
		3992	my $value = uuid_str $value + $uuid_skip;
		3993	$uuid_skip = 0;
		3994
		3995	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3996	and return;
		3997
		3998	# always fsync - this file is important
		3999	aio_fsync $fh
		4000	and return;
		4001
		4002	close $fh
		4003	or return;
		4004
		4005	aio_rename "$uuid~", $uuid
		4006	and return;
		4007
		4008	trace "uuid file written ($value).\n";
		4009
		4010	1
		4011
		4012	}
		4013
		4014	sub write_uuid($$) {
		4015	my ($skip, $sync) = @_;
		4016
		4017	$sync ? write_uuid_sync $skip
		4018	: async { write_uuid_sync $skip };
2638	}	4019	}
2639		4020
2640	sub emergency_save() {	4021	sub emergency_save() {
2641	my $freeze_guard = cf::freeze_mainloop;	4022	my $freeze_guard = cf::freeze_mainloop;
2642		4023
2643	warn "enter emergency perl save\n";	4024	info "emergency_perl_save: enter\n";
		4025
		4026	# this is a trade-off: we want to be very quick here, so
		4027	# save all maps without fsync, and later call a global sync
		4028	# (which in turn might be very very slow)
		4029	local $USE_FSYNC = 0;
2644		4030
2645	cf::sync_job {	4031	cf::sync_job {
		4032	cf::write_runtime_sync; # external watchdog should not bark
		4033
2646	# use a peculiar iteration method to avoid tripping on perl	4034	# use a peculiar iteration method to avoid tripping on perl
2647	# refcount bugs in for. also avoids problems with players	4035	# refcount bugs in for. also avoids problems with players
2648	# and maps saved/destroyed asynchronously.	4036	# and maps saved/destroyed asynchronously.
2649	warn "begin emergency player save\n";	4037	info "emergency_perl_save: begin player save\n";
2650	for my $login (keys %cf::PLAYER) {	4038	for my $login (keys %cf::PLAYER) {
2651	my $pl = $cf::PLAYER{$login} or next;	4039	my $pl = $cf::PLAYER{$login} or next;
2652	$pl->valid or next;	4040	$pl->valid or next;
		4041	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2653	$pl->save;	4042	$pl->save;
2654	}	4043	}
2655	warn "end emergency player save\n";	4044	info "emergency_perl_save: end player save\n";
2656		4045
2657	warn "begin emergency map save\n";	4046	cf::write_runtime_sync; # external watchdog should not bark
		4047
		4048	info "emergency_perl_save: begin map save\n";
2658	for my $path (keys %cf::MAP) {	4049	for my $path (keys %cf::MAP) {
2659	my $map = $cf::MAP{$path} or next;	4050	my $map = $cf::MAP{$path} or next;
2660	$map->valid or next;	4051	$map->valid or next;
2661	$map->save;	4052	$map->save;
2662	}	4053	}
2663	warn "end emergency map save\n";	4054	info "emergency_perl_save: end map save\n";
2664		4055
2665	warn "begin emergency database checkpoint\n";	4056	cf::write_runtime_sync; # external watchdog should not bark
		4057
		4058	info "emergency_perl_save: begin database checkpoint\n";
2666	BDB::db_env_txn_checkpoint $DB_ENV;	4059	BDB::db_env_txn_checkpoint $DB_ENV;
2667	warn "end emergency database checkpoint\n";	4060	info "emergency_perl_save: end database checkpoint\n";
		4061
		4062	info "emergency_perl_save: begin write uuid\n";
		4063	write_uuid_sync 1;
		4064	info "emergency_perl_save: end write uuid\n";
		4065
		4066	cf::write_runtime_sync; # external watchdog should not bark
		4067
		4068	trace "emergency_perl_save: syncing database to disk";
		4069	BDB::db_env_txn_checkpoint $DB_ENV;
		4070
		4071	info "emergency_perl_save: starting sync\n";
		4072	IO::AIO::aio_sync sub {
		4073	info "emergency_perl_save: finished sync\n";
		4074	};
		4075
		4076	cf::write_runtime_sync; # external watchdog should not bark
		4077
		4078	trace "emergency_perl_save: flushing outstanding aio requests";
		4079	while (IO::AIO::nreqs || BDB::nreqs) {
		4080	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4081	}
		4082
		4083	cf::write_runtime_sync; # external watchdog should not bark
2668	};	4084	};
2669		4085
2670	warn "leave emergency perl save\n";	4086	info "emergency_perl_save: leave\n";
2671	}	4087	}
2672		4088
2673	sub post_cleanup {	4089	sub post_cleanup {
2674	my ($make_core) = @_;	4090	my ($make_core) = @_;
2675		4091
		4092	IO::AIO::flush;
		4093
2676	warn Carp::longmess "post_cleanup backtrace"	4094	error Carp::longmess "post_cleanup backtrace"
2677	if $make_core;	4095	if $make_core;
		4096
		4097	my $fh = pidfile;
		4098	unlink $PIDFILE if <$fh> == $$;
		4099	}
		4100
		4101	# a safer delete_package, copied from Symbol
		4102	sub clear_package($) {
		4103	my $pkg = shift;
		4104
		4105	# expand to full symbol table name if needed
		4106	unless ($pkg =~ /^main::.*::$/) {
		4107	$pkg = "main$pkg" if $pkg =~ /^::/;
		4108	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4109	$pkg .= '::' unless $pkg =~ /::$/;
		4110	}
		4111
		4112	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4113	my $stem_symtab = *{$stem}{HASH};
		4114
		4115	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4116	or return;
		4117
		4118	# clear all symbols
		4119	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4120	for my $name (keys %$leaf_symtab) {
		4121	_gv_clear *{"$pkg$name"};
		4122	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4123	}
2678	}	4124	}
2679		4125
2680	sub do_reload_perl() {	4126	sub do_reload_perl() {
2681	# can/must only be called in main	4127	# can/must only be called in main
2682	if ($Coro::current != $Coro::main) {	4128	unless (in_main) {
2683	warn "can only reload from main coroutine";	4129	error "can only reload from main coroutine";
2684	return;	4130	return;
2685	}	4131	}
2686		4132
2687	warn "reloading...";	4133	return if $RELOAD++;
2688		4134
2689	warn "entering sync_job";	4135	my $t1 = AE::time;
2690		4136
		4137	while ($RELOAD) {
		4138	cf::get_slot 0.1, -1, "reload_perl";
		4139	info "perl_reload: reloading...";
		4140
		4141	trace "perl_reload: entering sync_job";
		4142
2691	cf::sync_job {	4143	cf::sync_job {
2692	cf::write_runtime; # external watchdog should not bark
2693	cf::emergency_save;	4144	#cf::emergency_save;
2694	cf::write_runtime; # external watchdog should not bark
2695		4145
2696	warn "syncing database to disk";
2697	BDB::db_env_txn_checkpoint $DB_ENV;
2698
2699	# if anything goes wrong in here, we should simply crash as we already saved
2700
2701	warn "cancelling all WF_AUTOCANCEL watchers";
2702	for (Event::all_watchers) {
2703	$_->cancel if $_->data & WF_AUTOCANCEL;
2704	}
2705
2706	warn "flushing outstanding aio requests";
2707	for (;;) {
2708	BDB::flush;
2709	IO::AIO::flush;
2710	Coro::cede;
2711	last unless IO::AIO::nreqs || BDB::nreqs;
2712	warn "iterate...";
2713	}
2714
2715	++$RELOAD;
2716
2717	warn "cancelling all extension coros";	4146	trace "perl_reload: cancelling all extension coros";
2718	$_->cancel for values %EXT_CORO;	4147	$_->cancel for values %EXT_CORO;
2719	%EXT_CORO = ();	4148	%EXT_CORO = ();
2720		4149
2721	warn "removing commands";	4150	trace "perl_reload: removing commands";
2722	%COMMAND = ();	4151	%COMMAND = ();
2723		4152
2724	warn "removing ext commands";	4153	trace "perl_reload: removing ext/exti commands";
2725	%EXTCMD = ();	4154	%EXTCMD = ();
		4155	%EXTICMD = ();
2726		4156
2727	warn "unloading/nuking all extensions";	4157	trace "perl_reload: unloading/nuking all extensions";
2728	for my $pkg (@EXTS) {	4158	for my $pkg (@EXTS) {
2729	warn "... unloading $pkg";	4159	trace "... unloading $pkg";
2730		4160
2731	if (my $cb = $pkg->can ("unload")) {	4161	if (my $cb = $pkg->can ("unload")) {
2732	eval {	4162	eval {
2733	$cb->($pkg);	4163	$cb->($pkg);
2734	1	4164	1
2735	} or warn "$pkg unloaded, but with errors: $@";	4165	} or error "$pkg unloaded, but with errors: $@";
		4166	}
		4167
		4168	trace "... clearing $pkg";
		4169	clear_package $pkg;
2736	}	4170	}
2737		4171
2738	warn "... nuking $pkg";
2739	Symbol::delete_package $pkg;
2740	}
2741
2742	warn "unloading all perl modules loaded from $LIBDIR";	4172	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2743	while (my ($k, $v) = each %INC) {	4173	while (my ($k, $v) = each %INC) {
2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4174	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2745		4175
2746	warn "... unloading $k";	4176	trace "... unloading $k";
2747	delete $INC{$k};	4177	delete $INC{$k};
2748		4178
2749	$k =~ s/\.pm$//;	4179	$k =~ s/\.pm$//;
2750	$k =~ s/\//::/g;	4180	$k =~ s/\//::/g;
2751		4181
2752	if (my $cb = $k->can ("unload_module")) {	4182	if (my $cb = $k->can ("unload_module")) {
2753	$cb->();	4183	$cb->();
		4184	}
		4185
		4186	clear_package $k;
2754	}	4187	}
2755		4188
2756	Symbol::delete_package $k;
2757	}
2758
2759	warn "getting rid of safe::, as good as possible";	4189	trace "perl_reload: getting rid of safe::, as good as possible";
2760	Symbol::delete_package "safe::$_"	4190	clear_package "safe::$_"
2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4191	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2762		4192
2763	warn "unloading cf.pm \"a bit\"";	4193	trace "perl_reload: unloading cf.pm \"a bit\"";
2764	delete $INC{"cf.pm"};	4194	delete $INC{"cf.pm"};
2765	delete $INC{"cf/pod.pm"};	4195	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2766		4196
2767	# don't, removes xs symbols, too,	4197	# don't, removes xs symbols, too,
2768	# and global variables created in xs	4198	# and global variables created in xs
2769	#Symbol::delete_package __PACKAGE__;	4199	#clear_package __PACKAGE__;
2770		4200
2771	warn "unload completed, starting to reload now";	4201	info "perl_reload: unload completed, starting to reload now";
2772		4202
2773	warn "reloading cf.pm";	4203	trace "perl_reload: reloading cf.pm";
2774	require cf;	4204	require cf;
2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4205	cf::_connect_to_perl_1;
2776		4206
2777	warn "loading config and database again";	4207	trace "perl_reload: loading config and database again";
2778	cf::cfg_load;	4208	cf::reload_config;
2779		4209
2780	warn "loading extensions";	4210	trace "perl_reload: loading extensions";
2781	cf::load_extensions;	4211	cf::load_extensions;
2782		4212
		4213	if ($REATTACH_ON_RELOAD) {
2783	warn "reattaching attachments to objects/players";	4214	trace "perl_reload: reattaching attachments to objects/players";
2784	_global_reattach; # objects, sockets	4215	_global_reattach; # objects, sockets
2785	warn "reattaching attachments to maps";	4216	trace "perl_reload: reattaching attachments to maps";
2786	reattach $_ for values %MAP;	4217	reattach $_ for values %MAP;
2787	warn "reattaching attachments to players";	4218	trace "perl_reload: reattaching attachments to players";
2788	reattach $_ for values %PLAYER;	4219	reattach $_ for values %PLAYER;
		4220	}
2789		4221
2790	warn "leaving sync_job";	4222	cf::_post_init 1;
2791		4223
		4224	trace "perl_reload: leaving sync_job";
		4225
2792	1	4226	1
2793	} or do {	4227	} or do {
2794	warn $@;	4228	error $@;
2795	warn "error while reloading, exiting.";	4229	cf::cleanup "perl_reload: error, exiting.";
2796	exit 1;	4230	};
		4231
		4232	--$RELOAD;
2797	};	4233	}
2798		4234
2799	warn "reloaded";	4235	$t1 = AE::time - $t1;
		4236	info "perl_reload: completed in ${t1}s\n";
2800	};	4237	};
2801		4238
2802	our $RELOAD_WATCHER; # used only during reload	4239	our $RELOAD_WATCHER; # used only during reload
2803		4240
2804	sub reload_perl() {	4241	sub reload_perl() {
2805	# doing reload synchronously and two reloads happen back-to-back,	4242	# doing reload synchronously and two reloads happen back-to-back,
2806	# coro crashes during coro_state_free->destroy here.	4243	# coro crashes during coro_state_free->destroy here.
2807		4244
2808	$RELOAD_WATCHER ||= Event->timer (	4245	$RELOAD_WATCHER ||= cf::async {
2809	reentrant => 0,	4246	Coro::AIO::aio_wait cache_extensions;
2810	after => 0,	4247
2811	data => WF_AUTOCANCEL,	4248	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2812	cb => sub {
2813	do_reload_perl;	4249	do_reload_perl;
2814	undef $RELOAD_WATCHER;	4250	undef $RELOAD_WATCHER;
2815	},	4251	};
2816	);	4252	};
2817	}	4253	}
2818		4254
2819	register_command "reload" => sub {	4255	register_command "reload" => sub {
2820	my ($who, $arg) = @_;	4256	my ($who, $arg) = @_;
2821		4257
2822	if ($who->flag (FLAG_WIZ)) {	4258	if ($who->flag (FLAG_WIZ)) {
2823	$who->message ("reloading server.");	4259	$who->message ("reloading server.");
		4260	async {
		4261	$Coro::current->{desc} = "perl_reload";
2824	async { reload_perl };	4262	reload_perl;
		4263	};
2825	}	4264	}
2826	};	4265	};
2827		4266
2828	unshift @INC, $LIBDIR;	4267	#############################################################################
2829		4268
2830	my $bug_warning = 0;	4269	my $bug_warning = 0;
2831		4270
2832	our @WAIT_FOR_TICK;
2833	our @WAIT_FOR_TICK_BEGIN;
2834
2835	sub wait_for_tick {	4271	sub wait_for_tick() {
2836	return unless $TICK_WATCHER->is_active;	4272	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2837	return if $Coro::current == $Coro::main;
2838		4273
2839	my $signal = new Coro::Signal;	4274	$WAIT_FOR_TICK->wait;
2840	push @WAIT_FOR_TICK, $signal;
2841	$signal->wait;
2842	}	4275	}
2843		4276
2844	sub wait_for_tick_begin {	4277	sub wait_for_tick_begin() {
2845	return unless $TICK_WATCHER->is_active;	4278	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2846	return if $Coro::current == $Coro::main;
2847		4279
2848	my $signal = new Coro::Signal;	4280	my $signal = new Coro::Signal;
2849	push @WAIT_FOR_TICK_BEGIN, $signal;	4281	push @WAIT_FOR_TICK_BEGIN, $signal;
2850	$signal->wait;	4282	$signal->wait;
2851	}	4283	}
2852		4284
2853	$TICK_WATCHER = Event->timer (	4285	sub tick {
2854	reentrant => 0,
2855	parked => 1,
2856	prio => 0,
2857	at => $NEXT_TICK || $TICK,
2858	data => WF_AUTOCANCEL,
2859	cb => sub {
2860	if ($Coro::current != $Coro::main) {	4286	if ($Coro::current != $Coro::main) {
2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4287	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2862	unless ++$bug_warning > 10;	4288	unless ++$bug_warning > 10;
2863	return;	4289	return;
2864	}	4290	}
2865		4291
2866	$NOW = $tick_start = Event::time;	4292	cf::one_tick; # one server iteration
2867		4293
2868	cf::server_tick; # one server iteration	4294	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2869		4295
2870	$RUNTIME += $TICK;
2871	$NEXT_TICK += $TICK;
2872
2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4296	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2874	$NEXT_RUNTIME_WRITE = $NOW + 10;	4297	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2875	Coro::async_pool {	4298	Coro::async_pool {
		4299	$Coro::current->{desc} = "runtime saver";
2876	write_runtime	4300	write_runtime_sync
2877	or warn "ERROR: unable to write runtime file: $!";	4301	or error "ERROR: unable to write runtime file: $!";
2878	};
2879	}	4302	};
		4303	}
2880		4304
2881	# my $AFTER = Event::time;
2882	# warn $AFTER - $NOW;#d#
2883
2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4305	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2885	$sig->send;	4306	$sig->send;
2886	}	4307	}
2887	while (my $sig = shift @WAIT_FOR_TICK) {	4308	$WAIT_FOR_TICK->broadcast;
2888	$sig->send;
2889	}
2890		4309
2891	$NOW = Event::time;	4310	$LOAD = ($NOW - $TICK_START) / $TICK;
2892
2893	# if we are delayed by four ticks or more, skip them all
2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2895
2896	$TICK_WATCHER->at ($NEXT_TICK);
2897	$TICK_WATCHER->start;
2898
2899	$LOAD = ($NOW - $tick_start) / $TICK;
2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4311	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2901		4312
2902	_post_tick;	4313	if (0) {
2903		4314	if ($NEXT_TICK) {
2904		4315	my $jitter = $TICK_START - $NEXT_TICK;
		4316	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4317	debug "jitter $JITTER\n";#d#
		4318	}
2905	},	4319	}
2906	);	4320	}
2907		4321
2908	{	4322	{
2909	BDB::max_poll_time $TICK * 0.1;	4323	# configure BDB
2910	$BDB_POLL_WATCHER = Event->io (	4324	info "initialising database";
2911	reentrant => 0,	4325
2912	fd => BDB::poll_fileno,
2913	poll => 'r',
2914	prio => 0,
2915	data => WF_AUTOCANCEL,
2916	cb => \&BDB::poll_cb,
2917	);
2918	BDB::min_parallel 8;	4326	BDB::min_parallel 16;
2919		4327	BDB::max_poll_reqs $TICK * 0.1;
2920	BDB::set_sync_prepare {	4328	#$AnyEvent::BDB::WATCHER->priority (1);
2921	my $status;
2922	my $current = $Coro::current;
2923	(
2924	sub {
2925	$status = $!;
2926	$current->ready; undef $current;
2927	},
2928	sub {
2929	Coro::schedule while defined $current;
2930	$! = $status;
2931	},
2932	)
2933	};
2934		4329
2935	unless ($DB_ENV) {	4330	unless ($DB_ENV) {
2936	$DB_ENV = BDB::db_env_create;	4331	$DB_ENV = BDB::db_env_create;
		4332	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4333	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4334	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4335	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4336	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2937		4337
2938	cf::sync_job {	4338	cf::sync_job {
2939	eval {	4339	eval {
2940	BDB::db_env_open	4340	BDB::db_env_open
2941	$DB_ENV,	4341	$DB_ENV,
…		…
2943	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4343	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2944	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4344	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2945	0666;	4345	0666;
2946		4346
2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4347	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2948
2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2950	$DB_ENV->set_lk_detect;
2951	};	4348	};
2952		4349
2953	cf::cleanup "db_env_open(db): $@" if $@;	4350	cf::cleanup "db_env_open(db): $@" if $@;
2954	};	4351	};
2955	}	4352	}
		4353
		4354	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4355	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4356	};
		4357	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4358	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4359	};
		4360	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4361	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4362	};
		4363
		4364	info "database initialised";
2956	}	4365	}
2957		4366
2958	{	4367	{
		4368	# configure IO::AIO
		4369
		4370	info "initialising aio";
2959	IO::AIO::min_parallel 8;	4371	IO::AIO::min_parallel 8;
2960
2961	undef $Coro::AIO::WATCHER;
2962	IO::AIO::max_poll_time $TICK * 0.1;	4372	IO::AIO::max_poll_time $TICK * 0.1;
2963	$AIO_POLL_WATCHER = Event->io (	4373	undef $AnyEvent::AIO::WATCHER;
2964	reentrant => 0,	4374	info "aio initialised";
2965	data => WF_AUTOCANCEL,
2966	fd => IO::AIO::poll_fileno,
2967	poll => 'r',
2968	prio => 6,
2969	cb => \&IO::AIO::poll_cb,
2970	);
2971	}	4375	}
2972		4376
2973	my $_log_backtrace;	4377	our $_log_backtrace;
		4378	our $_log_backtrace_last;
2974		4379
2975	sub _log_backtrace {	4380	sub _log_backtrace {
2976	my ($msg, @addr) = @_;	4381	my ($msg, @addr) = @_;
2977		4382
2978	$msg =~ s/\n//;	4383	$msg =~ s/\n$//;
2979		4384
		4385	if ($_log_backtrace_last eq $msg) {
		4386	LOG llevInfo, "[ABT] $msg\n";
		4387	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
2980	# limit the # of concurrent backtraces	4388	# limit the # of concurrent backtraces
2981	if ($_log_backtrace < 2) {	4389	} elsif ($_log_backtrace < 2) {
		4390	$_log_backtrace_last = $msg;
2982	++$_log_backtrace;	4391	++$_log_backtrace;
		4392	my $perl_bt = Carp::longmess $msg;
2983	async {	4393	async {
		4394	$Coro::current->{desc} = "abt $msg";
		4395
2984	my @bt = fork_call {	4396	my @bt = fork_call {
2985	@addr = map { sprintf "%x", $_ } @addr;	4397	@addr = map { sprintf "%x", $_ } @addr;
2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4398	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4399	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2988	or die "addr2line: $!";	4400	or die "addr2line: $!";
…		…
2996	}	4408	}
2997		4409
2998	@funcs	4410	@funcs
2999	};	4411	};
3000		4412
3001	LOG llevInfo, "[ABT] $msg\n";	4413	LOG llevInfo, "[ABT] $perl_bt\n";
		4414	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3002	LOG llevInfo, "[ABT] $_\n" for @bt;	4415	LOG llevInfo, "[ABT] $_\n" for @bt;
3003	--$_log_backtrace;	4416	--$_log_backtrace;
3004	};	4417	};
3005	} else {	4418	} else {
3006	LOG llevInfo, "[ABT] $msg\n";	4419	LOG llevInfo, "[ABT] $msg\n";
3007	LOG llevInfo, "[ABT] [suppressed]\n";	4420	LOG llevInfo, "[ABT] [overload, suppressed]\n";
3008	}	4421	}
3009	}	4422	}
3010		4423
3011	# load additional modules	4424	# load additional modules
3012	use cf::pod;	4425	require "cf/$_.pm" for @EXTRA_MODULES;
		4426	cf::_connect_to_perl_2;
3013		4427
3014	END { cf::emergency_save }	4428	END { cf::emergency_save }
3015		4429
3016	1	4430	1
3017		4431

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