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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.231 by root, Wed Apr 4 00:02:06 2007 UTC vs.
Revision 1.622 by root, Wed Nov 23 06:05:33 2016 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 Storable;	29	use Socket;
9	use Event;	30	use EV;
10	use Opcode;	31	use Opcode;
11	use Safe;	32	use Safe;
12	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
13		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
14	use Coro 3.52 ();	41	use Coro ();
15	use Coro::State;	42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
16	use Coro::Event;	45	use Coro::AnyEvent;
17	use Coro::Timer;	46	use Coro::Timer;
18	use Coro::Signal;	47	use Coro::Signal;
19	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
20	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
21		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
22	use BDB ();	58	use BDB ();
23	use Data::Dumper;	59	use Data::Dumper;
24	use Digest::MD5;
25	use Fcntl;	60	use Fcntl;
26	use YAML::Syck ();	61	use YAML::XS ();
		62	use CBOR::XS ();
27	use IO::AIO 2.32 ();	63	use IO::AIO ();
28	use Time::HiRes;
29	use Compress::LZF;	64	use Compress::LZF;
		65	use Digest::MD5 ();
		66
		67	AnyEvent::detect;
30		68
31	# configure various modules to our taste	69	# configure various modules to our taste
32	#	70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
33	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		73
		74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
34	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35		79
36	$Event::Eval = 1; # no idea why this is required, but it is	80	# strictly for debugging
37		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
38	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
39	$YAML::Syck::ImplicitUnicode = 1;
40
41	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
42		82
43	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		84
		85	our @ORIG_INC;
44		86
45	our %COMMAND = ();	87	our %COMMAND = ();
46	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
47		89
48	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
49	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTACMD = ();
		93	our %EXTICMD = ();
		94	our %EXTIACMD = ();
50	our %EXT_CORO = (); # coroutines bound to extensions	95	our %EXT_CORO = (); # coroutines bound to extensions
51	our %EXT_MAP = (); # pluggable maps	96	our %EXT_MAP = (); # pluggable maps
52		97
53	our $RELOAD; # number of reloads so far	98	our $RELOAD; # number of reloads so far, non-zero while in reload
54	our @EVENT;	99	our @EVENT;
55	our $LIBDIR = datadir . "/ext";	100	our @REFLECT; # set by XS
		101	our %REFLECT; # set by us
56		102
57	our $TICK = MAX_TIME * 1e-6;	103	our $CONFDIR = confdir;
58	our $TICK_WATCHER;	104
59	our $AIO_POLL_WATCHER;	105	our $DATADIR = datadir;
		106	our $LIBDIR = "$DATADIR/ext";
		107	our $PODDIR = "$DATADIR/pod";
		108	our $MAPDIR = "$DATADIR/" . mapdir;
		109
		110	our $LOCALDIR = localdir;
		111	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		112	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		113	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		114	our $RANDOMDIR = "$LOCALDIR/random";
		115	our $BDBDIR = "$LOCALDIR/db";
		116	our $PIDFILE = "$LOCALDIR/pid";
		117	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		118
		119	#our %RESOURCE; # unused
		120
		121	our $OUTPUT_RATE_MIN = 3000;
		122	our $OUTPUT_RATE_MAX = 1000000;
		123
		124	our $MAX_LINKS = 32; # how many chained exits to follow
		125	our $VERBOSE_IO = 1;
		126
		127	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
60	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	128	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
61	our $NEXT_TICK;	129	our $NEXT_TICK;
		130	our $USE_FSYNC = 1; # use fsync to write maps - default on
		131
		132	our $BDB_DEADLOCK_WATCHER;
		133	our $BDB_CHECKPOINT_WATCHER;
		134	our $BDB_TRICKLE_WATCHER;
		135	our $DB_ENV;
		136
		137	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		138
		139	our %CFG;
		140	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		141
		142	our $UPTIME; $UPTIME ||= time;
		143	our $RUNTIME = 0;
		144	our $SERVER_TICK = 0;
62	our $NOW;	145	our $NOW;
63	our $USE_FSYNC = 1; # use fsync to write maps - default off
64		146
65	our $BDB_POLL_WATCHER;	147	our (%PLAYER, %PLAYER_LOADING); # all users
66	our $DB_ENV;	148	our (%MAP, %MAP_LOADING ); # all maps
67
68	our %CFG;
69
70	our $UPTIME; $UPTIME ||= time;
71	our $RUNTIME;
72
73	our %PLAYER; # all users
74	our %MAP; # all maps
75	our $LINK_MAP; # the special {link} map, which is always available	149	our $LINK_MAP; # the special {link} map, which is always available
76	our $RANDOM_MAPS = cf::localdir . "/random";
77	our $BDB_ENV_DIR = cf::localdir . "/db";
78
79	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81		150
82	# used to convert map paths into valid unix filenames by replacing / by ∕	151	# used to convert map paths into valid unix filenames by replacing / by ∕
83	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	152	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
84		153
		154	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		155	our $LOADAVG; # same thing, but with alpha-smoothing
		156	our $JITTER; # average jitter
		157	our $TICK_START; # for load detecting purposes
		158
		159	our @POST_INIT;
		160
		161	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		162	our $REALLY_UNLOOP; # never set to true, please :)
		163
		164	our $WAIT_FOR_TICK = new Coro::Signal;
		165	our @WAIT_FOR_TICK_BEGIN;
		166
85	binmode STDOUT;	167	binmode STDOUT;
86	binmode STDERR;	168	binmode STDERR;
87		169
88	# read virtual server time, if available	170	# read virtual server time, if available
89	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	171	unless ($RUNTIME || !-e $RUNTIMEFILE) {
90	open my $fh, "<", cf::localdir . "/runtime"	172	open my $fh, "<", $RUNTIMEFILE
91	or die "unable to read runtime file: $!";	173	or die "unable to read $RUNTIMEFILE file: $!";
92	$RUNTIME = <$fh> + 0.;	174	$RUNTIME = <$fh> + 0.;
93	}	175	}
94		176
95	mkdir cf::localdir;	177	eval "sub TICK() { $TICK } 1" or die;
96	mkdir cf::localdir . "/" . cf::playerdir;	178
97	mkdir cf::localdir . "/" . cf::tmpdir;	179	mkdir $_
98	mkdir cf::localdir . "/" . cf::uniquedir;	180	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
99	mkdir $RANDOM_MAPS;
100	mkdir $BDB_ENV_DIR;
101		181
102	our $EMERGENCY_POSITION;	182	our $EMERGENCY_POSITION;
103		183
104	sub cf::map::normalise;	184	sub cf::map::normalise;
105		185
		186	sub in_main() {
		187	$Coro::current == $Coro::main
		188	}
		189
106	#############################################################################	190	#############################################################################
107		191
		192	%REFLECT = ();
		193	for (@REFLECT) {
		194	my $reflect = JSON::XS::decode_json $_;
		195	$REFLECT{$reflect->{class}} = $reflect;
		196	}
		197
		198	# this is decidedly evil
		199	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		200
		201	#############################################################################
		202
108	=head2 GLOBAL VARIABLES	203	=head2 GLOBAL VARIABLES
109		204
110	=over 4	205	=over 4
111		206
112	=item $cf::UPTIME	207	=item $cf::UPTIME
113		208
114	The timestamp of the server start (so not actually an uptime).	209	The timestamp of the server start (so not actually an "uptime").
		210
		211	=item $cf::SERVER_TICK
		212
		213	An unsigned integer that starts at zero when the server is started and is
		214	incremented on every tick.
		215
		216	=item $cf::NOW
		217
		218	The (real) time of the last (current) server tick - updated before and
		219	after tick processing, so this is useful only as a rough "what time is it
		220	now" estimate.
		221
		222	=item $cf::TICK
		223
		224	The interval between each server tick, in seconds.
115		225
116	=item $cf::RUNTIME	226	=item $cf::RUNTIME
117		227
118	The time this server has run, starts at 0 and is increased by $cf::TICK on	228	The time this server has run, starts at 0 and is increased by $cf::TICK on
119	every server tick.	229	every server tick.
120		230
121	=item $cf::LIBDIR	231	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		232	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		233	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
122		234
123	The perl library directory, where extensions and cf-specific modules can	235	Various directories - "/etc", read-only install directory, perl-library
124	be found. It will be added to C<@INC> automatically.	236	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		237	unique-items directory, player file directory, random maps directory and
		238	database environment.
125		239
		240	=item $cf::LOADAVG
		241
		242	The current CPU load on the server (alpha-smoothed), as a value between 0
		243	(none) and 1 (overloaded), indicating how much time is spent on processing
		244	objects per tick. Healthy values are < 0.5.
		245
126	=item $cf::NOW	246	=item $cf::LOAD
127		247
128	The time of the last (current) server tick.	248	The raw value load value from the last tick.
129
130	=item $cf::TICK
131
132	The interval between server ticks, in seconds.
133		249
134	=item %cf::CFG	250	=item %cf::CFG
135		251
136	Configuration for the server, loaded from C</etc/crossfire/config>, or	252	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
137	from wherever your confdir points to.	253	from wherever your confdir points to.
138		254
139	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	255	=item cf::wait_for_tick, cf::wait_for_tick_begin
140		256
141	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	257	These are functions that inhibit the current coroutine one tick.
142	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	258	cf::wait_for_tick_begin only returns directly I<after> the tick
143	processing has been done. Call C<< ->wait >> on them to maximise the	259	processing (and consequently, can only wake one thread per tick), while
144	window of cpu time available, or simply to synchronise to the server tick.	260	cf::wait_for_tick wakes up all waiters after tick processing.
		261
		262	Note that cf::wait_for_tick will immediately return when the server is not
		263	ticking, making it suitable for small pauses in threads that need to run
		264	when the server is paused. If that is not applicable (i.e. you I<really>
		265	want to wait, use C<$cf::WAIT_FOR_TICK>).
		266
		267	=item $cf::WAIT_FOR_TICK
		268
		269	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		270	variable contains a L<Coro::Signal> that is broadcats after every server
		271	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		272	next server tick.
		273
		274	=cut
		275
		276	sub wait_for_tick();
		277	sub wait_for_tick_begin();
		278
		279	=item @cf::INVOKE_RESULTS
		280
		281	This array contains the results of the last C<invoke ()> call. When
		282	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		283	that call.
		284
		285	=item %cf::REFLECT
		286
		287	Contains, for each (C++) class name, a hash reference with information
		288	about object members (methods, scalars, arrays and flags) and other
		289	metadata, which is useful for introspection.
145		290
146	=back	291	=back
147		292
148	=cut	293	=cut
149		294
150	BEGIN {	295	sub error(@) { LOG llevError, join "", @_ }
151	*CORE::GLOBAL::warn = sub {	296	sub warn (@) { LOG llevWarn , join "", @_ }
		297	sub info (@) { LOG llevInfo , join "", @_ }
		298	sub debug(@) { LOG llevDebug, join "", @_ }
		299	sub trace(@) { LOG llevTrace, join "", @_ }
		300
		301	$Coro::State::WARNHOOK = sub {
152	my $msg = join "", @_;	302	my $msg = join "", @_;
153	utf8::encode $msg;
154		303
155	$msg .= "\n"	304	$msg .= "\n"
156	unless $msg =~ /\n$/;	305	unless $msg =~ /\n$/;
157		306
		307	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		308
158	LOG llevError, $msg;	309	LOG llevWarn, $msg;
159	};	310	};
160	}	311
		312	$Coro::State::DIEHOOK = sub {
		313	return unless $^S eq 0; # "eq", not "=="
		314
		315	error Carp::longmess $_[0];
		316
		317	if (in_main) {#d#
		318	error "DIEHOOK called in main context, Coro bug?\n";#d#
		319	return;#d#
		320	}#d#
		321
		322	# kill coroutine otherwise
		323	Coro::terminate
		324	};
161		325
162	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	326	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
163	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	327	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
164	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	328	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
165	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	329	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
166	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	330	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		331	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
167	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	332	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
168		333
169	# we bless all objects into (empty) derived classes to force a method lookup	334	# we bless all objects into (empty) derived classes to force a method lookup
170	# within the Safe compartment.	335	# within the Safe compartment.
171	for my $pkg (qw(	336	for my $pkg (qw(
172	cf::global cf::attachable	337	cf::global cf::attachable
173	cf::object cf::object::player	338	cf::object cf::object::player
174	cf::client cf::player	339	cf::client cf::player
175	cf::arch cf::living	340	cf::arch cf::living
		341	cf::map cf::mapspace
176	cf::map cf::party cf::region	342	cf::party cf::region
177	)) {	343	)) {
178	no strict 'refs';
179	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	344	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
180	}	345	}
181		346
182	$Event::DIED = sub {	347	$EV::DIED = sub {
183	warn "error in event callback: @_";	348	warn "error in event callback: $@";
184	};	349	};
		350
		351	#############################################################################
		352
		353	sub fork_call(&@);
		354	sub get_slot($;$$);
		355
		356	#############################################################################
185		357
186	=head2 UTILITY FUNCTIONS	358	=head2 UTILITY FUNCTIONS
187		359
188	=over 4	360	=over 4
189		361
…		…
208	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	380	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209	$d	381	$d
210	} || "[unable to dump $_[0]: '$@']";	382	} || "[unable to dump $_[0]: '$@']";
211	}	383	}
212		384
213	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	385	=item $scalar = cf::load_file $path
214		386
		387	Loads the given file from path and returns its contents. Croaks on error
		388	and can block.
		389
		390	=cut
		391
		392	sub load_file($) {
		393	0 <= aio_load $_[0], my $data
		394	or Carp::croak "$_[0]: $!";
		395
		396	$data
		397	}
		398
		399	=item $success = cf::replace_file $path, $data, $sync
		400
		401	Atomically replaces the file at the given $path with new $data, and
		402	optionally $sync the data to disk before replacing the file.
		403
		404	=cut
		405
		406	sub replace_file($$;$) {
		407	my ($path, $data, $sync) = @_;
		408
		409	my $lock = cf::lock_acquire ("replace_file:$path");
		410
		411	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		412	or return;
		413
		414	$data = $data->() if ref $data;
		415
		416	length $data == aio_write $fh, 0, (length $data), $data, 0
		417	or return;
		418
		419	!$sync
		420	or !aio_fsync $fh
		421	or return;
		422
		423	aio_close $fh
		424	and return;
		425
		426	aio_rename "$path~", $path
		427	and return;
		428
		429	if ($sync) {
		430	$path =~ s%/[^/]*$%%;
		431	aio_pathsync $path;
		432	}
		433
		434	1
		435	}
		436
215	=item $ref = cf::from_json $json	437	=item $ref = cf::decode_json $json
216		438
217	Converts a JSON string into the corresponding perl data structure.	439	Converts a JSON string into the corresponding perl data structure.
218		440
219	=item $json = cf::to_json $ref	441	=item $json = cf::encode_json $ref
220		442
221	Converts a perl data structure into its JSON representation.	443	Converts a perl data structure into its JSON representation.
222		444
		445	=cut
		446
		447	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		448
		449	sub encode_json($) { $json_coder->encode ($_[0]) }
		450	sub decode_json($) { $json_coder->decode ($_[0]) }
		451
		452	=item $ref = cf::decode_storable $scalar
		453
		454	Same as Coro::Storable::thaw, so blocks.
		455
		456	=cut
		457
		458	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		459
		460	=item $ref = cf::decode_yaml $scalar
		461
		462	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		463
		464	=cut
		465
		466	sub decode_yaml($) {
		467	fork_call { YAML::XS::Load $_[0] } @_
		468	}
		469
		470	=item $scalar = cf::decode_cbor $scalar
		471
		472	Same as CBOR::XS::decode_cbor, but takes server ticks into account, so
		473	blocks. For small amounts of data, C<CBOR::XS::decode_cbor> is the better
		474	alternative.
		475
		476	=cut
		477
		478	sub decode_cbor($) {
		479	# we assume 10mb/s minimum decoding speed (on a ~2ghz machine)
		480	cf::get_slot +(length $_[0]) / 10_000_000, 0, "decode_cbor";
		481	CBOR::XS::decode_cbor $_[0]
		482	}
		483
		484	=item $scalar = cf::unlzf $scalar
		485
		486	Same as Compress::LZF::compress, but takes server ticks into account, so
		487	blocks.
		488
		489	=cut
		490
		491	sub unlzf($) {
		492	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		493	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		494	Compress::LZF::decompress $_[0]
		495	}
		496
		497	=item cf::post_init { BLOCK }
		498
		499	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		500	but I<before> the server starts ticking again.
		501
		502	The codeblock will have a single boolean argument to indicate whether this
		503	is a reload or not.
		504
		505	=cut
		506
		507	sub post_init(&) {
		508	push @POST_INIT, shift;
		509	}
		510
		511	sub _post_init {
		512	trace "running post_init jobs";
		513
		514	# run them in parallel...
		515
		516	my @join;
		517
		518	while () {
		519	push @join, map &Coro::async ($_, 0), @POST_INIT;
		520	@POST_INIT = ();
		521
		522	@join or last;
		523
		524	(pop @join)->join;
		525	}
		526	}
		527
223	=item cf::lock_wait $string	528	=item cf::lock_wait $string
224		529
225	Wait until the given lock is available. See cf::lock_acquire.	530	Wait until the given lock is available. See cf::lock_acquire.
226		531
227	=item my $lock = cf::lock_acquire $string	532	=item my $lock = cf::lock_acquire $string
228		533
229	Wait until the given lock is available and then acquires it and returns	534	Wait until the given lock is available and then acquires it and returns
230	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	535	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
231	for example when the coroutine gets canceled), the lock is automatically	536	for example when the coroutine gets canceled), the lock is automatically
232	returned.	537	returned.
233		538
		539	Locks are *not* recursive, locking from the same coro twice results in a
		540	deadlocked coro.
		541
234	Lock names should begin with a unique identifier (for example, cf::map::find	542	Lock names should begin with a unique identifier (for example, cf::map::find
235	uses map_find and cf::map::load uses map_load).	543	uses map_find and cf::map::load uses map_load).
236		544
237	=cut	545	=item $locked = cf::lock_active $string
238		546
239	our %LOCK;	547	Return true if the lock is currently active, i.e. somebody has locked it.
		548
		549	=cut
		550
		551	our $LOCKS = new Coro::SemaphoreSet;
240		552
241	sub lock_wait($) {	553	sub lock_wait($) {
242	my ($key) = @_;	554	$LOCKS->wait ($_[0]);
243
244	# wait for lock, if any
245	while ($LOCK{$key}) {
246	push @{ $LOCK{$key} }, $Coro::current;
247	Coro::schedule;
248	}
249	}	555	}
250		556
251	sub lock_acquire($) {	557	sub lock_acquire($) {
252	my ($key) = @_;	558	$LOCKS->guard ($_[0])
		559	}
253		560
254	# wait, to be sure we are not locked	561	sub lock_active($) {
255	lock_wait $key;	562	$LOCKS->count ($_[0]) < 1
256
257	$LOCK{$key} = [];
258
259	Coro::guard {
260	# wake up all waiters, to be on the safe side
261	$_->ready for @{ delete $LOCK{$key} };
262	}
263	}	563	}
264		564
265	sub freeze_mainloop {	565	sub freeze_mainloop {
266	return unless $TICK_WATCHER->is_active;	566	tick_inhibit_inc;
267		567
268	my $guard = Coro::guard {	568	&Guard::guard (\&tick_inhibit_dec);
269	$TICK_WATCHER->start;	569	}
		570
		571	=item cf::periodic $interval, $cb
		572
		573	Like EV::periodic, but randomly selects a starting point so that the actions
		574	get spread over time.
		575
		576	=cut
		577
		578	sub periodic($$) {
		579	my ($interval, $cb) = @_;
		580
		581	my $start = rand List::Util::min 180, $interval;
		582
		583	EV::periodic $start, $interval, 0, $cb
		584	}
		585
		586	=item cf::get_slot $time[, $priority[, $name]]
		587
		588	Allocate $time seconds of blocking CPU time at priority C<$priority>
		589	(default: 0): This call blocks and returns only when you have at least
		590	C<$time> seconds of cpu time till the next tick. The slot is only valid
		591	till the next cede.
		592
		593	Background jobs should use a priority less than zero, interactive jobs
		594	should use 100 or more.
		595
		596	The optional C<$name> can be used to identify the job to run. It might be
		597	used for statistical purposes and should identify the same time-class.
		598
		599	Useful for short background jobs.
		600
		601	=cut
		602
		603	our @SLOT_QUEUE;
		604	our $SLOT_QUEUE;
		605	our $SLOT_DECAY = 0.9;
		606
		607	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		608	$SLOT_QUEUE = Coro::async {
		609	$Coro::current->desc ("timeslot manager");
		610
		611	my $signal = new Coro::Signal;
		612	my $busy;
		613
		614	while () {
		615	next_job:
		616
		617	Coro::cede;
		618
		619	my $avail = cf::till_tick;
		620
		621	for (0 .. $#SLOT_QUEUE) {
		622	if ($SLOT_QUEUE[$_][0] <= $avail) {
		623	$busy = 0;
		624	my $job = splice @SLOT_QUEUE, $_, 1, ();
		625	$job->[2]->send;
		626	goto next_job;
		627	} else {
		628	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		629	}
		630	}
		631
		632	if (@SLOT_QUEUE) {
		633	wait_for_tick;
		634	} else {
		635	$busy = 0;
		636	Coro::schedule;
		637	}
270	};	638	}
271	$TICK_WATCHER->stop;	639	};
272	$guard	640
		641	sub get_slot($;$$) {
		642	return if tick_inhibit || $Coro::current == $Coro::main;
		643
		644	my ($time, $pri, $name) = @_;
		645
		646	$time = clamp $time, 0.01, $TICK * .6;
		647
		648	my $sig = new Coro::Signal;
		649
		650	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		651	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		652	$SLOT_QUEUE->ready;
		653	$sig->wait;
273	}	654	}
274		655
275	=item cf::async { BLOCK }	656	=item cf::async { BLOCK }
276		657
277	Currently the same as Coro::async_pool, meaning you cannot use	658	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		663
283	BEGIN { *async = \&Coro::async_pool }	664	BEGIN { *async = \&Coro::async_pool }
284		665
285	=item cf::sync_job { BLOCK }	666	=item cf::sync_job { BLOCK }
286		667
287	The design of crossfire+ requires that the main coro ($Coro::main) is	668	The design of Deliantra requires that the main coroutine ($Coro::main)
288	always able to handle events or runnable, as crossfire+ is only partly	669	is always able to handle events or is runnable, as Deliantra is only
289	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	670	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		671	acceptable.
290		672
291	If it must be done, put the blocking parts into C<sync_job>. This will run	673	If it must be done, put the blocking parts into C<sync_job>. This will run
292	the given BLOCK in another coroutine while waiting for the result. The	674	the given BLOCK in another coroutine while waiting for the result. The
293	server will be frozen during this time, so the block should either finish	675	server will be frozen during this time, so the block should either finish
294	fast or be very important.	676	fast or be very important.
…		…
296	=cut	678	=cut
297		679
298	sub sync_job(&) {	680	sub sync_job(&) {
299	my ($job) = @_;	681	my ($job) = @_;
300		682
301	if ($Coro::current == $Coro::main) {	683	if (in_main) {
		684	my $time = AE::time;
		685
302	# this is the main coro, too bad, we have to block	686	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	687	# till the operation succeeds, freezing the server :/
304		688
305	# TODO: use suspend/resume instead	689	#LOG llevError, Carp::longmess "sync job";#d#
306	# (but this is cancel-safe)	690
307	my $freeze_guard = freeze_mainloop;	691	my $freeze_guard = freeze_mainloop;
308		692
309	my $busy = 1;	693	my $busy = 1;
310	my @res;	694	my @res;
311		695
312	(async {	696	(async {
		697	$Coro::current->desc ("sync job coro");
313	@res = eval { $job->() };	698	@res = eval { $job->() };
314	warn $@ if $@;	699	error $@ if $@;
315	undef $busy;	700	undef $busy;
316	})->prio (Coro::PRIO_MAX);	701	})->prio (Coro::PRIO_MAX);
317		702
318	while ($busy) {	703	while ($busy) {
319	Coro::cede or Event::one_event;	704	if (Coro::nready) {
		705	Coro::cede_notself;
		706	} else {
		707	EV::run EV::RUN_ONCE;
320	}	708	}
		709	}
		710
		711	my $time = AE::time - $time;
		712
		713	$TICK_START += $time; # do not account sync jobs to server load
321		714
322	wantarray ? @res : $res[0]	715	wantarray ? @res : $res[0]
323	} else {	716	} else {
324	# we are in another coroutine, how wonderful, everything just works	717	# we are in another coroutine, how wonderful, everything just works
325		718
…		…
345	$EXT_CORO{$coro+0} = $coro;	738	$EXT_CORO{$coro+0} = $coro;
346		739
347	$coro	740	$coro
348	}	741	}
349		742
350	sub write_runtime {	743	=item fork_call { }, @args
351	my $guard = cf::lock_acquire "write_runtime";
352		744
353	my $runtime = cf::localdir . "/runtime";	745	Executes the given code block with the given arguments in a seperate
		746	process, returning the results. Everything must be serialisable with
		747	Coro::Storable. May, of course, block. Note that the executed sub may
		748	never block itself or use any form of event handling.
354		749
355	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	750	=cut
356	or return;
357		751
358	my $value = $cf::RUNTIME + 90 + 10;	752	sub post_fork {
359	# 10 is the runtime save interval, for a monotonic clock	753	reset_signals;
360	# 60 allows for the watchdog to kill the server.	754	}
361		755
362	(aio_write $fh, 0, (length $value), $value, 0) <= 0	756	sub fork_call(&@) {
363	and return;	757	my ($cb, @args) = @_;
364		758
365	# always fsync - this file is important	759	my @res = Coro::Util::fork_eval {
366	aio_fsync $fh	760	cf::post_fork;
367	and return;	761	&$cb
		762	} @args;
368		763
369	close $fh	764	wantarray ? @res : $res[-1]
370	or return;	765	}
371		766
372	aio_rename "$runtime~", $runtime	767	sub objinfo {
373	and return;
374
375	1	768	(
		769	"counter value" => cf::object::object_count,
		770	"objects created" => cf::object::create_count,
		771	"objects destroyed" => cf::object::destroy_count,
		772	"freelist size" => cf::object::free_count,
		773	"allocated objects" => cf::object::objects_size,
		774	"active objects" => cf::object::actives_size,
		775	)
		776	}
		777
		778	=item $coin = coin_from_name $name
		779
		780	=cut
		781
		782	our %coin_alias = (
		783	"silver" => "silvercoin",
		784	"silvercoin" => "silvercoin",
		785	"silvercoins" => "silvercoin",
		786	"gold" => "goldcoin",
		787	"goldcoin" => "goldcoin",
		788	"goldcoins" => "goldcoin",
		789	"platinum" => "platinacoin",
		790	"platinumcoin" => "platinacoin",
		791	"platinumcoins" => "platinacoin",
		792	"platina" => "platinacoin",
		793	"platinacoin" => "platinacoin",
		794	"platinacoins" => "platinacoin",
		795	"royalty" => "royalty",
		796	"royalties" => "royalty",
		797	);
		798
		799	sub coin_from_name($) {
		800	$coin_alias{$_[0]}
		801	? cf::arch::find $coin_alias{$_[0]}
		802	: undef
		803	}
		804
		805	=item $value = cf::db_get $family => $key
		806
		807	Returns a single value from the environment database.
		808
		809	=item cf::db_put $family => $key => $value
		810
		811	Stores the given C<$value> in the family. It can currently store binary
		812	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		813
		814	=item $db = cf::db_table "name"
		815
		816	Create and/or open a new database table. The string must not be "db" and must be unique
		817	within each server.
		818
		819	=cut
		820
		821	sub db_table($) {
		822	cf::error "db_get called from main context"
		823	if $Coro::current == $Coro::main;
		824
		825	my ($name) = @_;
		826	my $db = BDB::db_create $DB_ENV;
		827
		828	eval {
		829	$db->set_flags (BDB::CHKSUM);
		830
		831	utf8::encode $name;
		832	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		833	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		834	cf::cleanup "db_open(db): $!" if $!;
		835	};
		836	cf::cleanup "db_open(db): $@" if $@;
		837
		838	$db
		839	}
		840
		841	our $DB;
		842
		843	sub db_init {
		844	$DB ||= db_table "db";
		845	}
		846
		847	sub db_get($$) {
		848	my $key = "$_[0]/$_[1]";
		849
		850	cf::error "db_get called from main context"
		851	if $Coro::current == $Coro::main;
		852
		853	BDB::db_get $DB, undef, $key, my $data;
		854
		855	$! ? ()
		856	: $data
		857	}
		858
		859	sub db_put($$$) {
		860	BDB::dbreq_pri 4;
		861	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		862	}
		863
		864	=item cf::cache $id => [$paths...], $processversion => $process
		865
		866	Generic caching function that returns the value of the resource $id,
		867	caching and regenerating as required.
		868
		869	This function can block.
		870
		871	=cut
		872
		873	sub cache {
		874	my ($id, $src, $processversion, $process) = @_;
		875
		876	my $meta =
		877	join "\x00",
		878	$processversion,
		879	map {
		880	aio_stat $_
		881	and Carp::croak "$_: $!";
		882
		883	($_, (stat _)[7,9])
		884	} @$src;
		885
		886	my $dbmeta = db_get cache => "$id/meta";
		887	if ($dbmeta ne $meta) {
		888	# changed, we may need to process
		889
		890	my @data;
		891	my $md5;
		892
		893	for (0 .. $#$src) {
		894	$data[$_] = load_file $src->[$_];
		895	}
		896
		897	# if processing is expensive, check
		898	# checksum first
		899	if (1) {
		900	$md5 =
		901	join "\x00",
		902	$processversion,
		903	map {
		904	cf::cede_to_tick;
		905	($src->[$_], Digest::MD5::md5_hex $data[$_])
		906	} 0.. $#$src;
		907
		908
		909	my $dbmd5 = db_get cache => "$id/md5";
		910	if ($dbmd5 eq $md5) {
		911	db_put cache => "$id/meta", $meta;
		912
		913	return db_get cache => "$id/data";
		914	}
		915	}
		916
		917	my $t1 = EV::time;
		918	my $data = $process->(\@data);
		919	my $t2 = EV::time;
		920
		921	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		922
		923	db_put cache => "$id/data", $data;
		924	db_put cache => "$id/md5" , $md5;
		925	db_put cache => "$id/meta", $meta;
		926
		927	return $data;
		928	}
		929
		930	db_get cache => "$id/data"
376	}	931	}
377		932
378	=item cf::datalog type => key => value, ...	933	=item cf::datalog type => key => value, ...
379		934
380	Log a datalog packet of the given type with the given key-value pairs.	935	Log a datalog packet of the given type with the given key-value pairs.
381		936
382	=cut	937	=cut
383		938
384	sub datalog($@) {	939	sub datalog($@) {
385	my ($type, %kv) = @_;	940	my ($type, %kv) = @_;
386	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	941	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
387	}	942	}
388		943
389	=back	944	=back
390		945
391	=cut	946	=cut
392		947
393	#############################################################################	948	#############################################################################
394		949
395	=head2 ATTACHABLE OBJECTS	950	=head2 ATTACHABLE OBJECTS
396		951
397	Many objects in crossfire are so-called attachable objects. That means you can	952	Many objects in deliantra are so-called attachable objects. That means you can
398	attach callbacks/event handlers (a collection of which is called an "attachment")	953	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	954	to it. All such attachable objects support the following methods.
400		955
401	In the following description, CLASS can be any of C<global>, C<object>	956	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	957	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	958	Deliantra).
404		959
405	=over 4	960	=over 4
406		961
407	=item $attachable->attach ($attachment, key => $value...)	962	=item $attachable->attach ($attachment, key => $value...)
408		963
…		…
452	=item cf::CLASS::attachment $name, ...	1007	=item cf::CLASS::attachment $name, ...
453		1008
454	Register an attachment by C<$name> through which attachable objects of the	1009	Register an attachment by C<$name> through which attachable objects of the
455	given CLASS can refer to this attachment.	1010	given CLASS can refer to this attachment.
456		1011
457	Some classes such as crossfire maps and objects can specify attachments	1012	Some classes such as deliantra maps and objects can specify attachments
458	that are attached at load/instantiate time, thus the need for a name.	1013	that are attached at load/instantiate time, thus the need for a name.
459		1014
460	These calls expect any number of the following handler/hook descriptions:	1015	These calls expect any number of the following handler/hook descriptions:
461		1016
462	=over 4	1017	=over 4
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	1126	$registry = $CB_TYPE[$object_type] ||= [];
572		1127
573	} elsif ($type eq "subtype") {	1128	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	1129	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	1130	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1131	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		1132
578	} elsif ($type eq "package") {	1133	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	1134	my $pkg = shift @arg;
580		1135
581	while (my ($name, $id) = each %cb_id) {	1136	while (my ($name, $id) = each %cb_id) {
…		…
586		1141
587	} elsif (exists $cb_id{$type}) {	1142	} elsif (exists $cb_id{$type}) {
588	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1143	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
589		1144
590	} elsif (ref $type) {	1145	} elsif (ref $type) {
591	warn "attaching objects not supported, ignoring.\n";	1146	error "attaching objects not supported, ignoring.\n";
592		1147
593	} else {	1148	} else {
594	shift @arg;	1149	shift @arg;
595	warn "attach argument '$type' not supported, ignoring.\n";	1150	error "attach argument '$type' not supported, ignoring.\n";
596	}	1151	}
597	}	1152	}
598	}	1153	}
599		1154
600	sub _object_attach {	1155	sub _object_attach {
…		…
610	_attach $registry, $klass, @attach;	1165	_attach $registry, $klass, @attach;
611	}	1166	}
612		1167
613	$obj->{$name} = \%arg;	1168	$obj->{$name} = \%arg;
614	} else {	1169	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	1170	info "object uses attachment '$name' which is not available, postponing.\n";
616	}	1171	}
617		1172
618	$obj->{_attachment}{$name} = undef;	1173	$obj->{_attachment}{$name} = undef;
619	}	1174	}
620		1175
…		…
622	if (ref $_[0]) {	1177	if (ref $_[0]) {
623	_object_attach @_;	1178	_object_attach @_;
624	} else {	1179	} else {
625	_attach shift->_attach_registry, @_;	1180	_attach shift->_attach_registry, @_;
626	}	1181	}
		1182	_recalc_want;
627	};	1183	};
628		1184
629	# all those should be optimised	1185	# all those should be optimised
630	sub cf::attachable::detach {	1186	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	1187	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	1190	delete $obj->{_attachment}{$name};
635	reattach ($obj);	1191	reattach ($obj);
636	} else {	1192	} else {
637	Carp::croak "cannot, currently, detach class attachments";	1193	Carp::croak "cannot, currently, detach class attachments";
638	}	1194	}
		1195	_recalc_want;
639	};	1196	};
640		1197
641	sub cf::attachable::attached {	1198	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	1199	my ($obj, $name) = @_;
643		1200
…		…
658	";	1215	";
659	die if $@;	1216	die if $@;
660	}	1217	}
661		1218
662	our $override;	1219	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1220	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		1221
665	sub override {	1222	sub override {
666	$override = 1;	1223	$override = 1;
667	@invoke_results = ();	1224	@INVOKE_RESULTS = (@_);
668	}	1225	}
669		1226
670	sub do_invoke {	1227	sub do_invoke {
671	my $event = shift;	1228	my $event = shift;
672	my $callbacks = shift;	1229	my $callbacks = shift;
673		1230
674	@invoke_results = ();	1231	@INVOKE_RESULTS = ();
675		1232
676	local $override;	1233	local $override;
677		1234
678	for (@$callbacks) {	1235	for (@$callbacks) {
679	eval { &{$_->[1]} };	1236	eval { &{$_->[1]} };
680		1237
681	if ($@) {	1238	if ($@) {
682	warn "$@";
683	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1239	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
684	override;	1240	override;
685	}	1241	}
686		1242
687	return 1 if $override;	1243	return 1 if $override;
688	}	1244	}
689		1245
690	0	1246	0
691	}	1247	}
692		1248
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1249	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1250
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1251	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1252
697	Generate an object-specific event with the given arguments.	1253	Generate an object-specific event with the given arguments.
698		1254
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1255	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	1256	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	1257	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1258
703	=back	1259	=back
704		1260
705	=cut	1261	=cut
706		1262
707	#############################################################################	1263	#############################################################################
708	# object support	1264	# object support
		1265
		1266	sub _object_equal($$);
		1267	sub _object_equal($$) {
		1268	my ($a, $b) = @_;
		1269
		1270	return 0 unless (ref $a) eq (ref $b);
		1271
		1272	if ("HASH" eq ref $a) {
		1273	my @ka = keys %$a;
		1274	my @kb = keys %$b;
		1275
		1276	return 0 if @ka != @kb;
		1277
		1278	for (0 .. $#ka) {
		1279	return 0 unless $ka[$_] eq $kb[$_];
		1280	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1281	}
		1282
		1283	} elsif ("ARRAY" eq ref $a) {
		1284
		1285	return 0 if @$a != @$b;
		1286
		1287	for (0 .. $#$a) {
		1288	return 0 unless _object_equal $a->[$_], $b->[$_];
		1289	}
		1290
		1291	} elsif ($a ne $b) {
		1292	return 0;
		1293	}
		1294
		1295	1
		1296	}
		1297
		1298	our $SLOW_MERGES;#d#
		1299	sub _can_merge {
		1300	my ($ob1, $ob2) = @_;
		1301
		1302	++$SLOW_MERGES;#d#
		1303
		1304	# we do the slow way here
		1305	return _object_equal $ob1, $ob2
		1306	}
709		1307
710	sub reattach {	1308	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1309	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1310	my ($obj) = @_;
713		1311
		1312	# no longer needed after getting rid of delete_package?
714	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1313	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
715		1314
716	my $registry = $obj->registry;	1315	my $registry = $obj->registry;
717		1316
718	@$registry = ();	1317	@$registry = ();
719		1318
…		…
724	for (@$attach) {	1323	for (@$attach) {
725	my ($klass, @attach) = @$_;	1324	my ($klass, @attach) = @$_;
726	_attach $registry, $klass, @attach;	1325	_attach $registry, $klass, @attach;
727	}	1326	}
728	} else {	1327	} else {
729	warn "object uses attachment '$name' that is not available, postponing.\n";	1328	info "object uses attachment '$name' that is not available, postponing.\n";
730	}	1329	}
731	}	1330	}
732	}	1331	}
733		1332
734	cf::attachable->attach (	1333	cf::attachable->attach (
735	prio => -1000000,	1334	prio => -1000000,
736	on_instantiate => sub {	1335	on_instantiate => sub {
737	my ($obj, $data) = @_;	1336	my ($obj, $data) = @_;
738		1337
739	$data = from_json $data;	1338	$data = decode_json $data;
740		1339
741	for (@$data) {	1340	for (@$data) {
742	my ($name, $args) = @$_;	1341	my ($name, $args) = @$_;
743		1342
744	$obj->attach ($name, %{$args || {} });	1343	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1359	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1360	my ($filename, $rdata, $objs) = @_;
762		1361
763	sync_job {	1362	sync_job {
764	if (length $$rdata) {	1363	if (length $$rdata) {
		1364	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1365	trace sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1366	$decname, length $$rdata, scalar @$objs
		1367	if $VERBOSE_IO;
767		1368
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1369	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1370	aio_chmod $fh, SAVE_MODE;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1371	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	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	}
772	close $fh;	1376	aio_close $fh;
773		1377
774	if (@$objs) {	1378	if (@$objs) {
775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1379	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
776	chmod SAVE_MODE, $fh;	1380	aio_chmod $fh, SAVE_MODE;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1381	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1382	aio_write $fh, 0, (length $data), $data, 0;
779	aio_fsync $fh if $cf::USE_FSYNC;	1383	if ($cf::USE_FSYNC) {
		1384	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;
		1385	aio_fsync $fh;
		1386	}
780	close $fh;	1387	aio_close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1388	aio_rename "$filename.pst~", "$filename.pst";
782	}	1389	}
783	} else {	1390	} else {
784	aio_unlink "$filename.pst";	1391	aio_unlink "$filename.pst";
785	}	1392	}
786		1393
787	aio_rename "$filename~", $filename;	1394	aio_rename "$filename~", $filename;
		1395
		1396	$filename =~ s%/[^/]+$%%;
		1397	aio_pathsync $filename if $cf::USE_FSYNC;
788	} else {	1398	} else {
789	warn "FATAL: $filename~: $!\n";	1399	error "unable to save objects: $filename~: $!\n";
790	}	1400	}
791	} else {	1401	} else {
792	aio_unlink $filename;	1402	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1403	aio_unlink "$filename.pst";
794	}	1404	}
795	}	1405	};
796	}	1406	}
797		1407
798	sub object_freezer_as_string {	1408	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1409	my ($rdata, $objs) = @_;
800		1410
…		…
812	or return;	1422	or return;
813		1423
814	unless (aio_stat "$filename.pst") {	1424	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1425	(aio_load "$filename.pst", $av) >= 0
816	or return;	1426	or return;
		1427
817	$av = eval { (Storable::thaw $av)->{objs} };	1428	my $st = eval { Coro::Storable::thaw $av };
		1429	$av = $st->{objs};
818	}	1430	}
819		1431
		1432	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1433	trace sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1434	$decname, length $data, scalar @{$av || []}
		1435	if $VERBOSE_IO;
		1436
822	return ($data, $av);	1437	($data, $av)
823	}	1438	}
		1439
		1440	=head2 COMMAND CALLBACKS
		1441
		1442	=over 4
		1443
		1444	=cut
824		1445
825	#############################################################################	1446	#############################################################################
826	# command handling &c	1447	# command handling &c
827		1448
828	=item cf::register_command $name => \&callback($ob,$args);	1449	=item cf::register_command $name => \&callback($ob,$args)
829		1450
830	Register a callback for execution when the client sends the user command	1451	Register a callback for execution when the client sends the user command
831	$name.	1452	$name.
832		1453
833	=cut	1454	=cut
…		…
839	#warn "registering command '$name/$time' to '$caller'";	1460	#warn "registering command '$name/$time' to '$caller'";
840		1461
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1462	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1463	}
843		1464
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1465	=item cf::register_extcmd $name => \&callback($pl,@args)
845		1466
846	Register a callbackf ro execution when the client sends an extcmd packet.	1467	Register a callback for execution when the client sends an (synchronous)
		1468	extcmd packet. Ext commands will be processed in the order they are
		1469	received by the server, like other user commands. The first argument is
		1470	the logged-in player. Ext commands can only be processed after a player
		1471	has logged in successfully.
847		1472
848	If the callback returns something, it is sent back as if reply was being	1473	The values will be sent back to the client.
849	called.
850		1474
851	=cut	1475	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
852		1476
		1477	Same as C<cf::register_extcmd>, but instead of returning values, the
		1478	callback needs to clal the C<$reply> function.
		1479
		1480	=item cf::register_exticmd $name => \&callback($ns,@args)
		1481
		1482	Register a callback for execution when the client sends an (asynchronous)
		1483	exticmd packet. Exti commands are processed by the server as soon as they
		1484	are received, i.e. out of order w.r.t. other commands. The first argument
		1485	is a client socket. Exti commands can be received anytime, even before
		1486	log-in.
		1487
		1488	The values will be sent back to the client.
		1489
		1490	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1491
		1492	Same as C<cf::register_extcmd>, but instead of returning values, the
		1493	callback needs to clal the C<$reply> function.
		1494
		1495	=cut
		1496
853	sub register_extcmd {	1497	sub register_extcmd($$) {
854	my ($name, $cb) = @_;	1498	my ($name, $cb) = @_;
855		1499
856	$EXTCMD{$name} = $cb;	1500	$EXTCMD{$name} = $cb;
857	}	1501	}
858		1502
		1503	sub register_async_extcmd($$) {
		1504	my ($name, $cb) = @_;
		1505
		1506	$EXTACMD{$name} = $cb;
		1507	}
		1508
		1509	sub register_exticmd($$) {
		1510	my ($name, $cb) = @_;
		1511
		1512	$EXTICMD{$name} = $cb;
		1513	}
		1514
		1515	sub register_async_exticmd($$) {
		1516	my ($name, $cb) = @_;
		1517
		1518	$EXTIACMD{$name} = $cb;
		1519	}
		1520
		1521	use File::Glob ();
		1522
859	cf::player->attach (	1523	cf::player->attach (
860	on_command => sub {	1524	on_unknown_command => sub {
861	my ($pl, $name, $params) = @_;	1525	my ($pl, $name, $params) = @_;
862		1526
863	my $cb = $COMMAND{$name}	1527	my $cb = $COMMAND{$name}
864	or return;	1528	or return;
865		1529
…		…
870	cf::override;	1534	cf::override;
871	},	1535	},
872	on_extcmd => sub {	1536	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1537	my ($pl, $buf) = @_;
874		1538
875	my $msg = eval { from_json $buf };	1539	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1540
877	if (ref $msg) {	1541	if (ref $msg) {
		1542	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1543
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1544	if (my $cb = $EXTACMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1545	$cb->(
880	$pl->ext_reply ($msg->{msgid}, %reply);	1546	$pl,
		1547	sub {
		1548	$pl->ext_msg ("reply-$reply", @_)
		1549	if $reply;
		1550	},
		1551	@payload
		1552	);
		1553	} else {
		1554	my @reply;
		1555
		1556	if (my $cb = $EXTCMD{$type}) {
		1557	@reply = $cb->($pl, @payload);
881	}	1558	}
		1559
		1560	$pl->ext_msg ("reply-$reply", @reply)
		1561	if $reply;
882	}	1562	}
		1563
883	} else {	1564	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1565	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1566	}
886		1567
887	cf::override;	1568	cf::override;
888	},	1569	},
889	);	1570	);
890		1571
		1572	# "readahead" all extensions
891	sub load_extension {	1573	sub cache_extensions {
892	my ($path) = @_;	1574	my $grp = IO::AIO::aio_group;
893		1575
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1576	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
895	my $base = $1;	1577	for (grep /\.ext$/, @{$_[0]}) {
896	my $pkg = $1;	1578	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}	1579	}
919	die $@;
920	}	1580	};
921		1581
922	push @EXTS, $pkg;	1582	$grp
		1583	}
		1584
		1585	sub _ext_cfg_reg($$$$) {
		1586	my ($rvar, $varname, $cfgname, $default) = @_;
		1587
		1588	$cfgname = lc $varname
		1589	unless length $cfgname;
		1590
		1591	$EXT_CFG{$cfgname} = [$rvar, $default];
		1592
		1593	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
923	}	1594	}
924		1595
925	sub load_extensions {	1596	sub load_extensions {
		1597	info "loading extensions...";
		1598
		1599	%EXT_CFG = ();
		1600
		1601	cf::sync_job {
		1602	my %todo;
		1603
926	for my $ext (<$LIBDIR/*.ext>) {	1604	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1605	next unless -r $path;
928	eval {	1606
929	load_extension $ext;	1607	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1608	my $base = $1;
		1609	my $pkg = $1;
		1610	$pkg =~ s/[^[:word:]]/_/g;
		1611	$pkg = "ext::$pkg";
		1612
		1613	open my $fh, "<:utf8", $path
		1614	or die "$path: $!";
		1615
		1616	my $source = do { local $/; <$fh> };
		1617
		1618	my %ext = (
		1619	path => $path,
		1620	base => $base,
		1621	pkg => $pkg,
		1622	);
		1623
		1624	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1625	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1626
		1627	$ext{source} =
		1628	"package $pkg; use common::sense;\n"
		1629	. "#line 1 \"$path\"\n{\n"
		1630	. $source
		1631	. "\n};\n1";
		1632
		1633	$todo{$base} = \%ext;
		1634	}
		1635
		1636	my $pass = 0;
		1637	my %done;
		1638	while (%todo) {
		1639	my $progress;
		1640
		1641	++$pass;
		1642
		1643	ext:
		1644	while (my ($k, $v) = each %todo) {
		1645	for (split /,\s*/, $v->{meta}{depends}) {
		1646	next ext
		1647	unless exists $done{$_};
		1648	}
		1649
		1650	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1651
		1652	my $source = $v->{source};
		1653
		1654	# support "CONF varname :confname = default" pseudo-statements
		1655	$source =~ s{
		1656	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1657	}{
		1658	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1659	}gmxe;
		1660
		1661	my $active = eval $source;
		1662
		1663	if (length $@) {
		1664	error "$v->{path}: $@\n";
		1665
		1666	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1667	if exists $v->{meta}{mandatory};
		1668
		1669	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1670	delete $todo{$k};
		1671	} else {
		1672	$done{$k} = delete $todo{$k};
		1673	push @EXTS, $v->{pkg};
		1674	$progress = 1;
		1675
		1676	info "$v->{base}: extension inactive.\n"
		1677	unless $active;
		1678	}
930	1	1679	}
931	} or warn "$ext not loaded: $@";	1680
		1681	unless ($progress) {
		1682	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1683
		1684	while (my ($k, $v) = each %todo) {
		1685	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1686	if exists $v->{meta}{mandatory};
		1687	}
		1688
		1689	last;
		1690	}
		1691	}
932	}	1692	};
933	}	1693	}
934		1694
935	#############################################################################	1695	#############################################################################
936		1696
		1697	=back
		1698
937	=head2 CORE EXTENSIONS	1699	=head2 CORE EXTENSIONS
938		1700
939	Functions and methods that extend core crossfire objects.	1701	Functions and methods that extend core deliantra objects.
940		1702
941	=cut	1703	=cut
942		1704
943	package cf::player;	1705	package cf::player;
944		1706
…		…
946		1708
947	=head3 cf::player	1709	=head3 cf::player
948		1710
949	=over 4	1711	=over 4
950		1712
		1713	=item cf::player::num_playing
		1714
		1715	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1716
		1717	=cut
		1718
		1719	sub num_playing {
		1720	scalar grep
		1721	$_->ob->map
		1722	&& !$_->hidden
		1723	&& !$_->ob->flag (cf::FLAG_WIZ),
		1724	cf::player::list
		1725	}
		1726
951	=item cf::player::find $login	1727	=item cf::player::find $login
952		1728
953	Returns the given player object, loading it if necessary (might block).	1729	Returns the given player object, loading it if necessary (might block).
954		1730
955	=cut	1731	=cut
956		1732
957	sub playerdir($) {	1733	sub playerdir($) {
958	cf::localdir	1734	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1735	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1736	}
964		1737
965	sub path($) {	1738	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1739	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1740
968	(playerdir $login) . "/$login.pl"	1741	(playerdir $login) . "/playerdata"
969	}	1742	}
970		1743
971	sub find_active($) {	1744	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1745	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1746	and $cf::PLAYER{$_[0]}->active
…		…
976		1749
977	sub exists($) {	1750	sub exists($) {
978	my ($login) = @_;	1751	my ($login) = @_;
979		1752
980	$cf::PLAYER{$login}	1753	$cf::PLAYER{$login}
981	or cf::sync_job { !aio_stat path $login }	1754	or !aio_stat path $login
982	}	1755	}
983		1756
984	sub find($) {	1757	sub find($) {
985	return $cf::PLAYER{$_[0]} || do {	1758	return $cf::PLAYER{$_[0]} || do {
986	my $login = $_[0];	1759	my $login = $_[0];
987		1760
988	my $guard = cf::lock_acquire "user_find:$login";	1761	my $guard = cf::lock_acquire "user_find:$login";
989		1762
990	$cf::PLAYER{$_[0]} || do {	1763	$cf::PLAYER{$_[0]} || do {
991	my $pl = load_pl path $login	1764	# rename old playerfiles to new ones
		1765	#TODO: remove when no longer required
		1766	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1767	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1768	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1769	aio_unlink +(playerdir $login) . "/$login.pl";
		1770
		1771	my $f = new_from_file cf::object::thawer path $login
992	or return;	1772	or return;
		1773
		1774	my $pl = cf::player::load_pl $f
		1775	or return;
		1776
		1777	local $cf::PLAYER_LOADING{$login} = $pl;
		1778	$f->resolve_delayed_derefs;
993	$cf::PLAYER{$login} = $pl	1779	$cf::PLAYER{$login} = $pl
994	}	1780	}
995	}	1781	}
996	}	1782	}
		1783
		1784	cf::player->attach (
		1785	on_load => sub {
		1786	my ($pl, $path) = @_;
		1787
		1788	# restore slots saved in save, below
		1789	my $slots = delete $pl->{_slots};
		1790
		1791	$pl->ob->current_weapon ($slots->[0]);
		1792	$pl->combat_ob ($slots->[1]);
		1793	$pl->ranged_ob ($slots->[2]);
		1794	},
		1795	);
997		1796
998	sub save($) {	1797	sub save($) {
999	my ($pl) = @_;	1798	my ($pl) = @_;
1000		1799
1001	return if $pl->{deny_save};	1800	return if $pl->{deny_save};
…		…
1006	return if $pl->{deny_save};	1805	return if $pl->{deny_save};
1007		1806
1008	aio_mkdir playerdir $pl, 0770;	1807	aio_mkdir playerdir $pl, 0770;
1009	$pl->{last_save} = $cf::RUNTIME;	1808	$pl->{last_save} = $cf::RUNTIME;
1010		1809
		1810	cf::get_slot 0.01;
		1811
		1812	# save slots, to be restored later
		1813	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1814
1011	$pl->save_pl ($path);	1815	$pl->save_pl ($path);
1012	Coro::cede;	1816	cf::cede_to_tick;
1013	}	1817	}
1014		1818
1015	sub new($) {	1819	sub new($) {
1016	my ($login) = @_;	1820	my ($login) = @_;
1017		1821
…		…
1023	$cf::PLAYER{$login} = $self;	1827	$cf::PLAYER{$login} = $self;
1024		1828
1025	$self	1829	$self
1026	}	1830	}
1027		1831
		1832	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1833
		1834	=cut
		1835
		1836	sub send_msg {
		1837	my $ns = shift->ns
		1838	or return;
		1839	$ns->send_msg (@_);
		1840	}
		1841
1028	=item $pl->quit_character	1842	=item $pl->quit_character
1029		1843
1030	Nukes the player without looking back. If logged in, the connection will	1844	Nukes the player without looking back. If logged in, the connection will
1031	be destroyed. May block for a long time.	1845	be destroyed. May block for a long time.
1032		1846
…		…
1036	my ($pl) = @_;	1850	my ($pl) = @_;
1037		1851
1038	my $name = $pl->ob->name;	1852	my $name = $pl->ob->name;
1039		1853
1040	$pl->{deny_save} = 1;	1854	$pl->{deny_save} = 1;
1041	$pl->password ("*"); # this should lock out the player until we nuked the dir	1855	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1042		1856
1043	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1857	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1044	$pl->deactivate;	1858	$pl->deactivate;
		1859
		1860	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1045	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1861	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1862	ext::highscore::check ($pl->ob);
		1863
1046	$pl->ns->destroy if $pl->ns;	1864	$pl->ns->destroy if $pl->ns;
1047		1865
1048	my $path = playerdir $pl;	1866	my $path = playerdir $pl;
1049	my $temp = "$path~$cf::RUNTIME~deleting~";	1867	my $temp = "$path~$cf::RUNTIME~deleting~";
1050	aio_rename $path, $temp;	1868	aio_rename $path, $temp;
…		…
1079	while and may block, so not sync_job-capable, ever.	1897	while and may block, so not sync_job-capable, ever.
1080		1898
1081	=cut	1899	=cut
1082		1900
1083	sub list_logins {	1901	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1902	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1903	or return [];
1086		1904
1087	my @logins;	1905	my @logins;
1088		1906
1089	for my $login (@$dirs) {	1907	for my $login (@$dirs) {
		1908	my $path = path $login;
		1909
		1910	# a .pst is a dead give-away for a valid player
		1911	# if no pst file found, open and chekc for blocked users
		1912	if (aio_stat "$path.pst") {
1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1913	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1091	aio_read $fh, 0, 512, my $buf, 0 or next;	1914	aio_read $fh, 0, 512, my $buf, 0 or next;
1092	$buf !~ /^password -------------$/m or next; # official not-valid tag	1915	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1916	}
1093		1917
1094	utf8::decode $login;	1918	utf8::decode $login;
1095	push @logins, $login;	1919	push @logins, $login;
1096	}	1920	}
1097		1921
1098	\@logins	1922	\@logins
1099	}	1923	}
1100		1924
1101	=item $player->maps	1925	=item $player->maps
		1926
		1927	=item cf::player::maps $login
1102		1928
1103	Returns an arrayref of map paths that are private for this	1929	Returns an arrayref of map paths that are private for this
1104	player. May block.	1930	player. May block.
1105		1931
1106	=cut	1932	=cut
…		…
1124	}	1950	}
1125		1951
1126	\@paths	1952	\@paths
1127	}	1953	}
1128		1954
1129	=item $player->ext_reply ($msgid, %msg)	1955	=item $protocol_xml = $player->expand_cfpod ($cfpod)
1130		1956
1131	Sends an ext reply to the player.	1957	Expand deliantra pod fragments into protocol xml.
1132		1958
1133	=cut
1134
1135	sub ext_reply($$%) {
1136	my ($self, $id, %msg) = @_;
1137
1138	$msg{msgid} = $id;
1139
1140	$self->send ("ext " . cf::to_json \%msg);
1141	}
1142
1143	=item $player->ext_event ($type, %msg)	1959	=item $player->ext_msg ($type, @msg)
1144		1960
1145	Sends an ext event to the client.	1961	Sends an ext event to the client.
1146		1962
1147	=cut	1963	=cut
1148		1964
1149	sub ext_event($$%) {	1965	sub ext_msg($$@) {
1150	my ($self, $type, %msg) = @_;	1966	my ($self, $type, @msg) = @_;
1151		1967
1152	delete $msg{msgid};	1968	$self->ns->ext_msg ($type, @msg);
1153	$msg{msgtype} = "event";
1154	$msg{eventtype} = $type;
1155
1156	$self->send ("ext " . cf::to_json \%msg);
1157	}	1969	}
1158		1970
1159	package cf;	1971	=head3 cf::region
		1972
		1973	=over 4
		1974
		1975	=cut
		1976
		1977	package cf::region;
		1978
		1979	=item cf::region::find_by_path $path
		1980
		1981	Tries to decuce the likely region for a map knowing only its path.
		1982
		1983	=cut
		1984
		1985	sub find_by_path($) {
		1986	my ($path) = @_;
		1987
		1988	$path =~ s/^~[^\/]*//; # skip ~login
		1989
		1990	my ($match, $specificity);
		1991
		1992	for my $region (list) {
		1993	if ($region->{match} && $path =~ $region->{match}) {
		1994	($match, $specificity) = ($region, $region->specificity)
		1995	if $region->specificity > $specificity;
		1996	}
		1997	}
		1998
		1999	$match
		2000	}
1160		2001
1161	=back	2002	=back
1162
1163		2003
1164	=head3 cf::map	2004	=head3 cf::map
1165		2005
1166	=over 4	2006	=over 4
1167		2007
…		…
1179	our $MAX_RESET = 3600;	2019	our $MAX_RESET = 3600;
1180	our $DEFAULT_RESET = 3000;	2020	our $DEFAULT_RESET = 3000;
1181		2021
1182	sub generate_random_map {	2022	sub generate_random_map {
1183	my ($self, $rmp) = @_;	2023	my ($self, $rmp) = @_;
1184	# mit "rum" bekleckern, nicht	2024
		2025	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2026
1185	$self->_create_random_map (	2027	$self->_create_random_map ($rmp);
1186	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1187	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1188	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1189	$rmp->{exit_on_final_map},
1190	$rmp->{xsize}, $rmp->{ysize},
1191	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1192	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1193	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1194	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1195	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1196	(cf::region::find $rmp->{region}), $rmp->{custom}
1197	)
1198	}	2028	}
1199		2029
1200	=item cf::map->register ($regex, $prio)	2030	=item cf::map->register ($regex, $prio)
1201		2031
1202	Register a handler for the map path matching the given regex at the	2032	Register a handler for the map path matching the given regex at the
…		…
1207		2037
1208	sub register {	2038	sub register {
1209	my (undef, $regex, $prio) = @_;	2039	my (undef, $regex, $prio) = @_;
1210	my $pkg = caller;	2040	my $pkg = caller;
1211		2041
1212	no strict;
1213	push @{"$pkg\::ISA"}, __PACKAGE__;	2042	push @{"$pkg\::ISA"}, __PACKAGE__;
1214		2043
1215	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2044	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1216	}	2045	}
1217		2046
1218	# also paths starting with '/'	2047	# also paths starting with '/'
1219	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2048	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1220		2049
1221	sub thawer_merge {	2050	sub thawer_merge {
1222	my ($self, $merge) = @_;	2051	my ($self, $merge) = @_;
1223		2052
1224	# we have to keep some variables in memory intact	2053	# we have to keep some variables in memory intact
1225	local $self->{path};	2054	local $self->{path};
1226	local $self->{load_path};	2055	local $self->{load_path};
1227	local $self->{deny_save};
1228	local $self->{deny_reset};
1229		2056
1230	$self->SUPER::thawer_merge ($merge);	2057	$self->SUPER::thawer_merge ($merge);
1231	}	2058	}
1232		2059
1233	sub normalise {	2060	sub normalise {
1234	my ($path, $base) = @_;	2061	my ($path, $base) = @_;
1235		2062
1236	$path = "$path"; # make sure its a string	2063	$path = "$path"; # make sure it's a string
1237		2064
1238	$path =~ s/\.map$//;	2065	$path =~ s/\.map$//;
1239		2066
1240	# map plan:	2067	# map plan:
1241	#	2068	#
…		…
1256	$base =~ s{[^/]+/?$}{};	2083	$base =~ s{[^/]+/?$}{};
1257	$path = "$base/$path";	2084	$path = "$base/$path";
1258	}	2085	}
1259		2086
1260	for ($path) {	2087	for ($path) {
1261	redo if s{//}{/};
1262	redo if s{/\.?/}{/};	2088	redo if s{/\.?/}{/};
1263	redo if s{/[^/]+/\.\./}{/};	2089	redo if s{/[^/]+/\.\./}{/};
1264	}	2090	}
1265		2091
1266	$path	2092	$path
…		…
1280	$self->init; # pass $1 etc.	2106	$self->init; # pass $1 etc.
1281	return $self;	2107	return $self;
1282	}	2108	}
1283	}	2109	}
1284		2110
1285	Carp::carp "unable to resolve path '$path' (base '$base').";	2111	Carp::cluck "unable to resolve path '$path' (base '$base')";
1286	()	2112	()
1287	}	2113	}
1288		2114
		2115	# may re-bless or do other evil things
1289	sub init {	2116	sub init {
1290	my ($self) = @_;	2117	my ($self) = @_;
1291		2118
1292	$self	2119	$self
1293	}	2120	}
…		…
1305		2132
1306	# the original (read-only) location	2133	# the original (read-only) location
1307	sub load_path {	2134	sub load_path {
1308	my ($self) = @_;	2135	my ($self) = @_;
1309		2136
1310	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2137	"$MAPDIR/$self->{path}.map"
1311	}	2138	}
1312		2139
1313	# the temporary/swap location	2140	# the temporary/swap location
1314	sub save_path {	2141	sub save_path {
1315	my ($self) = @_;	2142	my ($self) = @_;
1316		2143
1317	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2144	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1318	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2145	"$TMPDIR/$path.map"
1319	}	2146	}
1320		2147
1321	# the unique path, undef == no special unique path	2148	# the unique path, undef == no special unique path
1322	sub uniq_path {	2149	sub uniq_path {
1323	my ($self) = @_;	2150	my ($self) = @_;
1324		2151
1325	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2152	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1326	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2153	"$UNIQUEDIR/$path"
1327	}	2154	}
1328		2155
1329	# and all this just because we cannot iterate over	2156	sub decay_objects {
1330	# all maps in C++...
1331	sub change_all_map_light {
1332	my ($change) = @_;	2157	my ($self) = @_;
1333		2158
1334	$_->change_map_light ($change)	2159	return if $self->{deny_reset};
1335	for grep $_->outdoor, values %cf::MAP;	2160
		2161	$self->do_decay_objects;
1336	}	2162	}
1337		2163
1338	sub unlink_save {	2164	sub unlink_save {
1339	my ($self) = @_;	2165	my ($self) = @_;
1340		2166
…		…
1345		2171
1346	sub load_header_from($) {	2172	sub load_header_from($) {
1347	my ($self, $path) = @_;	2173	my ($self, $path) = @_;
1348		2174
1349	utf8::encode $path;	2175	utf8::encode $path;
1350	#aio_open $path, O_RDONLY, 0	2176	my $f = new_from_file cf::object::thawer $path
1351	# or return;
1352
1353	$self->_load_header ($path)
1354	or return;	2177	or return;
1355		2178
		2179	$self->_load_header ($f)
		2180	or return;
		2181
		2182	local $MAP_LOADING{$self->{path}} = $self;
		2183	$f->resolve_delayed_derefs;
		2184
1356	$self->{load_path} = $path;	2185	$self->{load_path} = $path;
1357		2186
1358	1	2187	1
1359	}	2188	}
1360		2189
		2190	# used to laod the header of an original map
1361	sub load_header_orig {	2191	sub load_header_orig {
1362	my ($self) = @_;	2192	my ($self) = @_;
1363		2193
1364	$self->load_header_from ($self->load_path)	2194	$self->load_header_from ($self->load_path)
1365	}	2195	}
1366		2196
		2197	# used to laod the header of an instantiated map
1367	sub load_header_temp {	2198	sub load_header_temp {
1368	my ($self) = @_;	2199	my ($self) = @_;
1369		2200
1370	$self->load_header_from ($self->save_path)	2201	$self->load_header_from ($self->save_path)
1371	}	2202	}
1372		2203
		2204	# called after loading the header from an instantiated map
1373	sub prepare_temp {	2205	sub prepare_temp {
1374	my ($self) = @_;	2206	my ($self) = @_;
1375		2207
1376	$self->last_access ((delete $self->{last_access})	2208	$self->last_access ((delete $self->{last_access})
1377	|| $cf::RUNTIME); #d#	2209	|| $cf::RUNTIME); #d#
1378	# safety	2210	# safety
1379	$self->{instantiate_time} = $cf::RUNTIME	2211	$self->{instantiate_time} = $cf::RUNTIME
1380	if $self->{instantiate_time} > $cf::RUNTIME;	2212	if $self->{instantiate_time} > $cf::RUNTIME;
1381	}	2213	}
1382		2214
		2215	# called after loading the header from an original map
1383	sub prepare_orig {	2216	sub prepare_orig {
1384	my ($self) = @_;	2217	my ($self) = @_;
1385		2218
1386	$self->{load_original} = 1;	2219	$self->{load_original} = 1;
1387	$self->{instantiate_time} = $cf::RUNTIME;	2220	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1398	$self->load_header_orig	2231	$self->load_header_orig
1399	or return;	2232	or return;
1400	$self->prepare_orig;	2233	$self->prepare_orig;
1401	}	2234	}
1402		2235
		2236	$self->{deny_reset} = 1
		2237	if $self->no_reset;
		2238
		2239	$self->default_region (cf::region::find_by_path $self->{path})
		2240	unless $self->default_region;
		2241
1403	1	2242	1
1404	}	2243	}
1405		2244
1406	sub find;	2245	sub find;
1407	sub find {	2246	sub find {
1408	my ($path, $origin) = @_;	2247	my ($path, $origin) = @_;
1409		2248
		2249	cf::cede_to_tick;
		2250
1410	$path = normalise $path, $origin && $origin->path;	2251	$path = normalise $path, $origin;
1411		2252
		2253	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1412	cf::lock_wait "map_find:$path";	2254	my $guard2 = cf::lock_acquire "map_find:$path";
1413		2255
1414	$cf::MAP{$path} || do {	2256	$cf::MAP{$path} || do {
1415	my $guard = cf::lock_acquire "map_find:$path";
1416	my $map = new_from_path cf::map $path	2257	my $map = new_from_path cf::map $path
1417	or return;	2258	or return;
1418		2259
1419	$map->{last_save} = $cf::RUNTIME;	2260	$map->{last_save} = $cf::RUNTIME;
1420		2261
1421	$map->load_header	2262	$map->load_header
1422	or return;	2263	or return;
1423		2264
1424	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2265	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1425	# doing this can freeze the server in a sync job, obviously	2266	# doing this can freeze the server in a sync job, obviously
1426	#$cf::WAIT_FOR_TICK->wait;	2267	#$cf::WAIT_FOR_TICK->wait;
		2268	undef $guard2;
		2269	undef $guard1;
1427	$map->reset;	2270	$map->reset;
1428	undef $guard;
1429	return find $path;	2271	return find $path;
1430	}	2272	}
1431		2273
1432	$cf::MAP{$path} = $map	2274	$cf::MAP{$path} = $map
1433	}	2275	}
1434	}	2276	}
1435		2277
1436	sub pre_load { }	2278	sub pre_load { }
1437	sub post_load { }	2279	#sub post_load { } # XS
1438		2280
1439	sub load {	2281	sub load {
1440	my ($self) = @_;	2282	my ($self) = @_;
1441		2283
1442	local $self->{deny_reset} = 1; # loading can take a long time	2284	local $self->{deny_reset} = 1; # loading can take a long time
1443		2285
1444	my $path = $self->{path};	2286	my $path = $self->{path};
		2287
		2288	{
1445	my $guard = cf::lock_acquire "map_load:$path";	2289	my $guard = cf::lock_acquire "map_data:$path";
1446		2290
1447	return if $self->in_memory != cf::MAP_SWAPPED;	2291	return unless $self->valid;
		2292	return unless $self->state == cf::MAP_SWAPPED;
1448		2293
1449	$self->in_memory (cf::MAP_LOADING);
1450
1451	$self->alloc;	2294	$self->alloc;
1452		2295
1453	$self->pre_load;	2296	$self->pre_load;
		2297	cf::cede_to_tick;
1454		2298
1455	$self->_load_objects ($self->{load_path}, 1)	2299	if (exists $self->{load_path}) {
		2300	my $f = new_from_file cf::object::thawer $self->{load_path};
		2301	$f->skip_block;
		2302	$self->_load_objects ($f)
1456	or return;	2303	or return;
1457		2304
1458	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2305	$self->post_load_original
1459	if delete $self->{load_original};	2306	if delete $self->{load_original};
1460		2307
1461	if (my $uniq = $self->uniq_path) {	2308	if (my $uniq = $self->uniq_path) {
1462	utf8::encode $uniq;	2309	utf8::encode $uniq;
1463	if (aio_open $uniq, O_RDONLY, 0) {	2310	unless (aio_stat $uniq) {
		2311	if (my $f = new_from_file cf::object::thawer $uniq) {
1464	$self->clear_unique_items;	2312	$self->clear_unique_items;
1465	$self->_load_objects ($uniq, 0);	2313	$self->_load_objects ($f);
		2314	$f->resolve_delayed_derefs;
		2315	}
		2316	}
1466	}	2317	}
1467	}
1468		2318
1469	Coro::cede;	2319	$f->resolve_delayed_derefs;
		2320	} else {
		2321	$self->post_load_original
		2322	if delete $self->{load_original};
		2323	}
1470		2324
		2325	$self->state (cf::MAP_INACTIVE);
		2326
		2327	cf::cede_to_tick;
1471	# now do the right thing for maps	2328	# now do the right thing for maps
1472	$self->link_multipart_objects;	2329	$self->link_multipart_objects;
1473
1474	unless ($self->{deny_activate}) {
1475	$self->decay_objects;
1476	$self->fix_auto_apply;
1477	$self->update_buttons;
1478	Coro::cede;
1479	$self->set_darkness_map;
1480	$self->difficulty ($self->estimate_difficulty)	2330	$self->difficulty ($self->estimate_difficulty)
1481	unless $self->difficulty;	2331	unless $self->difficulty;
1482	Coro::cede;	2332	cf::cede_to_tick;
1483	$self->activate;	2333
		2334	unless ($self->{deny_activate}) {
		2335	$self->decay_objects;
		2336	$self->fix_auto_apply;
		2337	$self->update_buttons;
		2338	cf::cede_to_tick;
		2339	#$self->activate; # no longer activate maps automatically
		2340	}
		2341
		2342	$self->{last_save} = $cf::RUNTIME;
		2343	$self->last_access ($cf::RUNTIME);
1484	}	2344	}
1485		2345
1486	$self->post_load;	2346	$self->post_load;
1487		2347
1488	$self->in_memory (cf::MAP_IN_MEMORY);	2348	1
1489	}	2349	}
1490		2350
		2351	# customize the map for a given player, i.e.
		2352	# return the _real_ map. used by e.g. per-player
		2353	# maps to change the path to ~playername/mappath
1491	sub customise_for {	2354	sub customise_for {
1492	my ($self, $ob) = @_;	2355	my ($self, $ob) = @_;
1493		2356
1494	return find "~" . $ob->name . "/" . $self->{path}	2357	return find "~" . $ob->name . "/" . $self->{path}
1495	if $self->per_player;	2358	if $self->per_player;
1496		2359
		2360	# return find "?party/" . $ob->name . "/" . $self->{path}
		2361	# if $self->per_party;
		2362
1497	$self	2363	$self
1498	}
1499
1500	# find and load all maps in the 3x3 area around a map
1501	sub load_diag {
1502	my ($map) = @_;
1503
1504	my @diag; # diagonal neighbours
1505
1506	for (0 .. 3) {
1507	my $neigh = $map->tile_path ($_)
1508	or next;
1509	$neigh = find $neigh, $map
1510	or next;
1511	$neigh->load;
1512
1513	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1514	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1515	}
1516
1517	for (@diag) {
1518	my $neigh = find @$_
1519	or next;
1520	$neigh->load;
1521	}
1522	}	2364	}
1523		2365
1524	sub find_sync {	2366	sub find_sync {
1525	my ($path, $origin) = @_;	2367	my ($path, $origin) = @_;
1526		2368
1527	cf::sync_job { find $path, $origin }	2369	# it's a bug to call this from the main context
		2370	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2371	if $Coro::current == $Coro::main;
		2372
		2373	find $path, $origin
1528	}	2374	}
1529		2375
1530	sub do_load_sync {	2376	sub do_load_sync {
1531	my ($map) = @_;	2377	my ($map) = @_;
1532		2378
1533	cf::sync_job { $map->load };	2379	# it's a bug to call this from the main context
		2380	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2381	if $Coro::current == $Coro::main;
		2382
		2383	$map->load;
1534	}	2384	}
1535		2385
1536	our %MAP_PREFETCH;	2386	our %MAP_PREFETCH;
1537	our $MAP_PREFETCHER = undef;	2387	our $MAP_PREFETCHER = undef;
1538		2388
1539	sub find_async {	2389	sub find_async {
1540	my ($path, $origin) = @_;	2390	my ($path, $origin, $load) = @_;
1541		2391
1542	$path = normalise $path, $origin && $origin->{path};	2392	$path = normalise $path, $origin;
1543		2393
1544	if (my $map = $cf::MAP{$path}) {	2394	if (my $map = $cf::MAP{$path}) {
1545	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2395	return $map if !$load || $map->linkable;
1546	}	2396	}
1547		2397
1548	undef $MAP_PREFETCH{$path};	2398	$MAP_PREFETCH{$path} |= $load;
		2399
1549	$MAP_PREFETCHER ||= cf::async {	2400	$MAP_PREFETCHER ||= cf::async {
		2401	$Coro::current->{desc} = "map prefetcher";
		2402
1550	while (%MAP_PREFETCH) {	2403	while (%MAP_PREFETCH) {
1551	for my $path (keys %MAP_PREFETCH) {	2404	for my $k (keys %MAP_PREFETCH) {
1552	my $map = find $path	2405	if (my $map = find $k) {
1553	or next;	2406	$map->load if $MAP_PREFETCH{$k};
1554	$map->load;	2407	}
1555		2408
1556	delete $MAP_PREFETCH{$path};	2409	delete $MAP_PREFETCH{$k};
1557	}	2410	}
1558	}	2411	}
1559	undef $MAP_PREFETCHER;	2412	undef $MAP_PREFETCHER;
1560	};	2413	};
1561	$MAP_PREFETCHER->prio (6);	2414	$MAP_PREFETCHER->prio (6);
1562		2415
1563	()	2416	()
1564	}	2417	}
1565		2418
		2419	# common code, used by both ->save and ->swapout
1566	sub save {	2420	sub _save {
1567	my ($self) = @_;	2421	my ($self) = @_;
1568
1569	my $lock = cf::lock_acquire "map_data:" . $self->path;
1570		2422
1571	$self->{last_save} = $cf::RUNTIME;	2423	$self->{last_save} = $cf::RUNTIME;
1572		2424
1573	return unless $self->dirty;	2425	return unless $self->dirty;
1574		2426
…		…
1580	return if $self->{deny_save};	2432	return if $self->{deny_save};
1581		2433
1582	local $self->{last_access} = $self->last_access;#d#	2434	local $self->{last_access} = $self->last_access;#d#
1583		2435
1584	cf::async {	2436	cf::async {
		2437	$Coro::current->{desc} = "map player save";
1585	$_->contr->save for $self->players;	2438	$_->contr->save for $self->players;
1586	};	2439	};
		2440
		2441	cf::get_slot 0.02;
1587		2442
1588	if ($uniq) {	2443	if ($uniq) {
1589	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2444	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1590	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2445	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1591	} else {	2446	} else {
1592	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2447	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1593	}	2448	}
1594	}	2449	}
1595		2450
		2451	sub save {
		2452	my ($self) = @_;
		2453
		2454	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2455
		2456	$self->_save;
		2457	}
		2458
1596	sub swap_out {	2459	sub swap_out {
1597	my ($self) = @_;	2460	my ($self) = @_;
1598		2461
1599	# save first because save cedes
1600	$self->save;
1601
1602	my $lock = cf::lock_acquire "map_data:" . $self->path;	2462	my $lock = cf::lock_acquire "map_data:$self->{path}";
1603		2463
		2464	return if !$self->linkable;
		2465	return if $self->{deny_save};
1604	return if $self->players;	2466	return if $self->players;
1605	return if $self->in_memory != cf::MAP_IN_MEMORY;
1606	return if $self->{deny_save};
1607		2467
		2468	# first deactivate the map and "unlink" it from the core
		2469	$self->deactivate;
		2470	$_->clear_links_to ($self) for values %cf::MAP;
		2471	$self->state (cf::MAP_SWAPPED);
		2472
		2473	# then atomically save
		2474	$self->_save;
		2475
		2476	# then free the map
1608	$self->clear;	2477	$self->clear;
1609	$self->in_memory (cf::MAP_SWAPPED);
1610	}	2478	}
1611		2479
1612	sub reset_at {	2480	sub reset_at {
1613	my ($self) = @_;	2481	my ($self) = @_;
1614		2482
1615	# TODO: safety, remove and allow resettable per-player maps	2483	# TODO: safety, remove and allow resettable per-player maps
1616	return 1e99 if $self->isa ("ext::map_per_player");#d#
1617	return 1e99 if $self->{deny_reset};	2484	return 1e99 if $self->{deny_reset};
1618		2485
1619	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2486	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1620	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2487	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1621		2488
…		…
1632	my ($self) = @_;	2499	my ($self) = @_;
1633		2500
1634	my $lock = cf::lock_acquire "map_data:$self->{path}";	2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
1635		2502
1636	return if $self->players;	2503	return if $self->players;
1637	return if $self->isa ("ext::map_per_player");#d#
1638		2504
1639	warn "resetting map ", $self->path;#d#	2505	cf::trace "resetting map ", $self->path, "\n";
1640		2506
1641	$self->in_memory (cf::MAP_SWAPPED);	2507	$self->state (cf::MAP_SWAPPED);
1642		2508
1643	# need to save uniques path	2509	# need to save uniques path
1644	unless ($self->{deny_save}) {	2510	unless ($self->{deny_save}) {
1645	my $uniq = $self->uniq_path; utf8::encode $uniq;	2511	my $uniq = $self->uniq_path; utf8::encode $uniq;
1646		2512
…		…
1648	if $uniq;	2514	if $uniq;
1649	}	2515	}
1650		2516
1651	delete $cf::MAP{$self->path};	2517	delete $cf::MAP{$self->path};
1652		2518
		2519	$self->deactivate;
		2520	$_->clear_links_to ($self) for values %cf::MAP;
1653	$self->clear;	2521	$self->clear;
1654
1655	$_->clear_links_to ($self) for values %cf::MAP;
1656		2522
1657	$self->unlink_save;	2523	$self->unlink_save;
1658	$self->destroy;	2524	$self->destroy;
1659	}	2525	}
1660		2526
1661	my $nuke_counter = "aaaa";	2527	my $nuke_counter = "aaaa";
1662		2528
1663	sub nuke {	2529	sub nuke {
1664	my ($self) = @_;	2530	my ($self) = @_;
1665		2531
		2532	{
		2533	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2534
1666	delete $cf::MAP{$self->path};	2535	delete $cf::MAP{$self->path};
1667		2536
1668	$self->unlink_save;	2537	$self->unlink_save;
1669		2538
1670	bless $self, "cf::map";	2539	bless $self, "cf::map::wrap";
1671	delete $self->{deny_reset};	2540	delete $self->{deny_reset};
1672	$self->{deny_save} = 1;	2541	$self->{deny_save} = 1;
1673	$self->reset_timeout (1);	2542	$self->reset_timeout (1);
1674	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2543	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1675		2544
1676	$cf::MAP{$self->path} = $self;	2545	$cf::MAP{$self->path} = $self;
		2546	}
1677		2547
1678	$self->reset; # polite request, might not happen	2548	$self->reset; # polite request, might not happen
		2549	}
		2550
		2551	=item $maps = cf::map::tmp_maps
		2552
		2553	Returns an arrayref with all map paths of currently instantiated and saved
		2554	maps. May block.
		2555
		2556	=cut
		2557
		2558	sub tmp_maps() {
		2559	[
		2560	map {
		2561	utf8::decode $_;
		2562	/\.map$/
		2563	? normalise $_
		2564	: ()
		2565	} @{ aio_readdir $TMPDIR or [] }
		2566	]
		2567	}
		2568
		2569	=item $maps = cf::map::random_maps
		2570
		2571	Returns an arrayref with all map paths of currently instantiated and saved
		2572	random maps. May block.
		2573
		2574	=cut
		2575
		2576	sub random_maps() {
		2577	[
		2578	map {
		2579	utf8::decode $_;
		2580	/\.map$/
		2581	? normalise "?random/$_"
		2582	: ()
		2583	} @{ aio_readdir $RANDOMDIR or [] }
		2584	]
1679	}	2585	}
1680		2586
1681	=item cf::map::unique_maps	2587	=item cf::map::unique_maps
1682		2588
1683	Returns an arrayref of paths of all shared maps that have	2589	Returns an arrayref of paths of all shared maps that have
1684	instantiated unique items. May block.	2590	instantiated unique items. May block.
1685		2591
1686	=cut	2592	=cut
1687		2593
1688	sub unique_maps() {	2594	sub unique_maps() {
1689	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2595	[
1690	or return;	2596	map {
1691
1692	my @paths;
1693
1694	for (@$files) {
1695	utf8::decode $_;	2597	utf8::decode $_;
1696	next if /\.pst$/;	2598	s/\.map$//; # TODO future compatibility hack
1697	next unless /^$PATH_SEP/o;	2599	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1698		2600	? ()
1699	push @paths, cf::map::normalise $_;	2601	: normalise $_
		2602	} @{ aio_readdir $UNIQUEDIR or [] }
1700	}	2603	]
1701
1702	\@paths
1703	}	2604	}
1704		2605
1705	package cf;	2606	=item cf::map::static_maps
		2607
		2608	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2609	file in the shared directory excluding F</styles> and F</editor>). May
		2610	block.
		2611
		2612	=cut
		2613
		2614	sub static_maps() {
		2615	my @dirs = "";
		2616	my @maps;
		2617
		2618	while (@dirs) {
		2619	my $dir = shift @dirs;
		2620
		2621	next if $dir eq "/styles" || $dir eq "/editor";
		2622
		2623	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2624	or return;
		2625
		2626	for (@$files) {
		2627	s/\.map$// or next;
		2628	utf8::decode $_;
		2629	push @maps, "$dir/$_";
		2630	}
		2631
		2632	push @dirs, map "$dir/$_", @$dirs;
		2633	}
		2634
		2635	\@maps
		2636	}
1706		2637
1707	=back	2638	=back
1708		2639
1709	=head3 cf::object	2640	=head3 cf::object
1710		2641
…		…
1714		2645
1715	=over 4	2646	=over 4
1716		2647
1717	=item $ob->inv_recursive	2648	=item $ob->inv_recursive
1718		2649
1719	Returns the inventory of the object _and_ their inventories, recursively.	2650	Returns the inventory of the object I<and> their inventories, recursively,
		2651	but I<not> the object itself.
1720		2652
1721	=cut	2653	=cut
1722		2654
1723	sub inv_recursive_;	2655	sub inv_recursive_;
1724	sub inv_recursive_ {	2656	sub inv_recursive_ {
…		…
1727		2659
1728	sub inv_recursive {	2660	sub inv_recursive {
1729	inv_recursive_ inv $_[0]	2661	inv_recursive_ inv $_[0]
1730	}	2662	}
1731		2663
		2664	=item $ref = $ob->ref
		2665
		2666	Creates and returns a persistent reference to an object that can be stored as a string.
		2667
		2668	=item $ob = cf::object::deref ($refstring)
		2669
		2670	returns the objetc referenced by refstring. may return undef when it cannot find the object,
		2671	even if the object actually exists. May block.
		2672
		2673	=cut
		2674
		2675	sub deref {
		2676	my ($ref) = @_;
		2677
		2678	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2679	my ($uuid, $name) = ($1, $2);
		2680	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2681	or return;
		2682	$pl->ob->uuid eq $uuid
		2683	or return;
		2684
		2685	$pl->ob
		2686	} else {
		2687	warn "$ref: cannot resolve object reference\n";
		2688	undef
		2689	}
		2690	}
		2691
1732	package cf;	2692	package cf;
1733		2693
1734	=back	2694	=back
1735		2695
1736	=head3 cf::object::player	2696	=head3 cf::object::player
…		…
1742	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2702	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1743	can be C<undef>. Does the right thing when the player is currently in a	2703	can be C<undef>. Does the right thing when the player is currently in a
1744	dialogue with the given NPC character.	2704	dialogue with the given NPC character.
1745		2705
1746	=cut	2706	=cut
		2707
		2708	our $SAY_CHANNEL = {
		2709	id => "say",
		2710	title => "Map",
		2711	reply => "say ",
		2712	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2713	};
		2714
		2715	our $CHAT_CHANNEL = {
		2716	id => "chat",
		2717	title => "Chat",
		2718	reply => "chat ",
		2719	tooltip => "Player chat and shouts, global to the server.",
		2720	};
1747		2721
1748	# rough implementation of a future "reply" method that works	2722	# rough implementation of a future "reply" method that works
1749	# with dialog boxes.	2723	# with dialog boxes.
1750	#TODO: the first argument must go, split into a $npc->reply_to ( method	2724	#TODO: the first argument must go, split into a $npc->reply_to ( method
1751	sub cf::object::player::reply($$$;$) {	2725	sub cf::object::player::reply($$$;$) {
…		…
1753		2727
1754	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2728	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1755		2729
1756	if ($self->{record_replies}) {	2730	if ($self->{record_replies}) {
1757	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2731	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2732
1758	} else {	2733	} else {
		2734	my $pl = $self->contr;
		2735
		2736	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2737	my $dialog = $pl->{npc_dialog};
		2738	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2739
		2740	} else {
1759	$msg = $npc->name . " says: $msg" if $npc;	2741	$msg = $npc->name . " says: $msg" if $npc;
1760	$self->message ($msg, $flags);	2742	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2743	}
1761	}	2744	}
		2745	}
		2746
		2747	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2748
		2749	=cut
		2750
		2751	sub cf::object::send_msg {
		2752	my $pl = shift->contr
		2753	or return;
		2754	$pl->send_msg (@_);
1762	}	2755	}
1763		2756
1764	=item $player_object->may ("access")	2757	=item $player_object->may ("access")
1765		2758
1766	Returns wether the given player is authorized to access resource "access"	2759	Returns wether the given player is authorized to access resource "access"
1767	(e.g. "command_wizcast").	2760	(e.g. "command_wizcast").
1768		2761
		2762	This is implemented by checking a config setting of C<may_access> where
		2763	C<access> is replaced by the access string. The following alternatives are
		2764	possible (and are tested in order):
		2765
		2766	=over 4
		2767
		2768	=item * Player is DM
		2769
		2770	The request will succeed.
		2771
		2772	=item * may_access is an array reference
		2773
		2774	If either the player nickname or UUID is in the array, the request will
		2775	succeed, otherwise it will fail.
		2776
		2777	=item * may_access is a true value
		2778
		2779	The request will succeed.
		2780
		2781	=item * may_access is missing or false
		2782
		2783	The request will fail.
		2784
		2785	=back
		2786
1769	=cut	2787	=cut
1770		2788
1771	sub cf::object::player::may {	2789	sub cf::object::player::may {
1772	my ($self, $access) = @_;	2790	my ($self, $access) = @_;
1773		2791
1774	$self->flag (cf::FLAG_WIZ) ||	2792	$self->flag (cf::FLAG_WIZ) ||
1775	(ref $cf::CFG{"may_$access"}	2793	(ref $cf::CFG{"may_$access"}
1776	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2794	? scalar grep $self->name eq $_ || $self->uuid eq $_, @{$cf::CFG{"may_$access"}}
1777	: $cf::CFG{"may_$access"})	2795	: $cf::CFG{"may_$access"})
1778	}	2796	}
1779		2797
1780	=item $player_object->enter_link	2798	=item $player_object->enter_link
1781		2799
1782	Freezes the player and moves him/her to a special map (C<{link}>).	2800	Freezes the player and moves him/her to a special map (C<{link}>).
1783		2801
1784	The player should be reasonably safe there for short amounts of time. You	2802	The player should be reasonably safe there for short amounts of time (e.g.
1785	I<MUST> call C<leave_link> as soon as possible, though.	2803	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2804	though, as the player cannot control the character while it is on the link
		2805	map.
1786		2806
1787	Will never block.	2807	This method will never block, which is the whole reaosn for it's
		2808	existance: you can I<always> put a player onto the link map, which is the
		2809	only place to put objects that is guaranteed to exist.
		2810
		2811	A typical usage pattern is to call C<enter_link> synchronously from the
		2812	server, then start a new thread, do your blocking stuff there and then
		2813	call C<leave_link> from that thread.
1788		2814
1789	=item $player_object->leave_link ($map, $x, $y)	2815	=item $player_object->leave_link ($map, $x, $y)
1790		2816
1791	Moves the player out of the special C<{link}> map onto the specified	2817	Moves the player out of the special C<{link}> map onto the specified
1792	map. If the map is not valid (or omitted), the player will be moved back	2818	map. If the map is not valid (or omitted), the player will be moved back
…		…
1810	sub cf::object::player::enter_link {	2836	sub cf::object::player::enter_link {
1811	my ($self) = @_;	2837	my ($self) = @_;
1812		2838
1813	$self->deactivate_recursive;	2839	$self->deactivate_recursive;
1814		2840
		2841	++$self->{_link_recursion};
		2842
1815	return if UNIVERSAL::isa $self->map, "ext::map_link";	2843	return if UNIVERSAL::isa $self->map, "ext::map_link";
1816		2844
1817	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2845	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1818	if $self->map;	2846	if $self->map && $self->map->{path} ne "{link}";
1819		2847
1820	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2848	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1821	}	2849	}
1822		2850
1823	sub cf::object::player::leave_link {	2851	sub cf::object::player::leave_link {
1824	my ($self, $map, $x, $y) = @_;	2852	my ($self, $map, $x, $y) = @_;
		2853
		2854	return unless $self->contr->active;
1825		2855
1826	my $link_pos = delete $self->{_link_pos};	2856	my $link_pos = delete $self->{_link_pos};
1827		2857
1828	unless ($map) {	2858	unless ($map) {
1829	# restore original map position	2859	# restore original map position
…		…
1840	($x, $y) = (-1, -1)	2870	($x, $y) = (-1, -1)
1841	unless (defined $x) && (defined $y);	2871	unless (defined $x) && (defined $y);
1842		2872
1843	# use -1 or undef as default coordinates, not 0, 0	2873	# use -1 or undef as default coordinates, not 0, 0
1844	($x, $y) = ($map->enter_x, $map->enter_y)	2874	($x, $y) = ($map->enter_x, $map->enter_y)
1845	if $x <=0 && $y <= 0;	2875	if $x <= 0 && $y <= 0;
1846		2876
1847	$map->load;	2877	$map->load;
1848	$map->load_diag;
1849		2878
1850	return unless $self->contr->active;	2879	return unless $self->contr->active;
1851	$self->activate_recursive;
1852		2880
1853	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2881	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1854	$self->enter_map ($map, $x, $y);	2882	if ($self->enter_map ($map, $x, $y)) {
1855	}	2883	# entering was successful
1856		2884	delete $self->{_link_recursion};
1857	cf::player->attach (	2885	# only activate afterwards, to support waiting in hooks
1858	on_logout => sub {	2886	$self->activate_recursive;
1859	my ($pl) = @_;
1860
1861	# abort map switching before logout
1862	if ($pl->ob->{_link_pos}) {
1863	cf::sync_job {
1864	$pl->ob->leave_link
1865	};
1866	}
1867	},	2887	}
1868	on_login => sub {
1869	my ($pl) = @_;
1870		2888
1871	# try to abort aborted map switching on player login :)	2889	}
1872	# should happen only on crashes
1873	if ($pl->ob->{_link_pos}) {
1874	$pl->ob->enter_link;
1875	(async {
1876	$pl->ob->reply (undef,
1877	"There was an internal problem at your last logout, "
1878	. "the server will try to bring you to your intended destination in a second.",
1879	cf::NDI_RED);
1880	# we need this sleep as the login has a concurrent enter_exit running
1881	# and this sleep increases chances of the player not ending up in scorn
1882	Coro::Timer::sleep 1;
1883	$pl->ob->leave_link;
1884	})->prio (2);
1885	}
1886	},
1887	);
1888		2890
1889	=item $player_object->goto ($path, $x, $y)	2891	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1890		2892
		2893	Moves the player to the given map-path and coordinates by first freezing
		2894	her, loading and preparing them map, calling the provided $check callback
		2895	that has to return the map if sucecssful, and then unfreezes the player on
		2896	the new (success) or old (failed) map position. In either case, $done will
		2897	be called at the end of this process.
		2898
		2899	Note that $check will be called with a potentially non-loaded map, so if
		2900	it needs a loaded map it has to call C<< ->load >>.
		2901
1891	=cut	2902	=cut
		2903
		2904	our $GOTOGEN;
1892		2905
1893	sub cf::object::player::goto {	2906	sub cf::object::player::goto {
1894	my ($self, $path, $x, $y) = @_;	2907	my ($self, $path, $x, $y, $check, $done) = @_;
		2908
		2909	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2910	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2911	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2912	($path, $x, $y) = @$EMERGENCY_POSITION;
		2913	}
		2914
		2915	# do generation counting so two concurrent goto's will be executed in-order
		2916	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1895		2917
1896	$self->enter_link;	2918	$self->enter_link;
1897		2919
1898	(async {	2920	(async {
		2921	$Coro::current->{desc} = "player::goto $path $x $y";
		2922
		2923	# *tag paths override both path and x|y
		2924	if ($path =~ /^\*(.*)$/) {
		2925	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2926	my $ob = $obs[rand @obs];
		2927
		2928	# see if we actually can go there
		2929	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2930	$ob = $obs[rand @obs];
		2931	} else {
		2932	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2933	}
		2934	# else put us there anyways for now #d#
		2935
		2936	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2937	} else {
		2938	($path, $x, $y) = (undef, undef, undef);
		2939	}
		2940	}
		2941
1899	my $map = eval {	2942	my $map = eval {
1900	my $map = cf::map::find $path;	2943	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2944
		2945	if ($map) {
1901	$map = $map->customise_for ($self) if $map;	2946	$map = $map->customise_for ($self);
		2947	$map = $check->($map, $x, $y, $self) if $check && $map;
		2948	} else {
		2949	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2950	}
		2951
1902	$map	2952	$map
		2953	};
		2954
		2955	if ($@) {
		2956	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2957	LOG llevError | logBacktrace, Carp::longmess $@;
1903	} or	2958	}
1904	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1905		2959
		2960	if ($gen == $self->{_goto_generation}) {
		2961	delete $self->{_goto_generation};
1906	$self->leave_link ($map, $x, $y);	2962	$self->leave_link ($map, $x, $y);
		2963	}
		2964
		2965	$done->($self) if $done;
1907	})->prio (1);	2966	})->prio (1);
1908	}	2967	}
1909		2968
1910	=item $player_object->enter_exit ($exit_object)	2969	=item $player_object->enter_exit ($exit_object)
1911		2970
…		…
1931	}	2990	}
1932		2991
1933	sub prepare_random_map {	2992	sub prepare_random_map {
1934	my ($exit) = @_;	2993	my ($exit) = @_;
1935		2994
1936	my $guard = cf::lock_acquire "exit_prepare:$exit";
1937
1938	# all this does is basically replace the /! path by	2995	# all this does is basically replace the /! path by
1939	# a new random map path (?random/...) with a seed	2996	# a new random map path (?random/...) with a seed
1940	# that depends on the exit object	2997	# that depends on the exit object
1941		2998
1942	my $rmp = parse_random_map_params $exit->msg;	2999	my $rmp = parse_random_map_params $exit->msg;
…		…
1944	if ($exit->map) {	3001	if ($exit->map) {
1945	$rmp->{region} = $exit->region->name;	3002	$rmp->{region} = $exit->region->name;
1946	$rmp->{origin_map} = $exit->map->path;	3003	$rmp->{origin_map} = $exit->map->path;
1947	$rmp->{origin_x} = $exit->x;	3004	$rmp->{origin_x} = $exit->x;
1948	$rmp->{origin_y} = $exit->y;	3005	$rmp->{origin_y} = $exit->y;
		3006
		3007	$exit->map->touch;
1949	}	3008	}
1950		3009
1951	$rmp->{random_seed} ||= $exit->random_seed;	3010	$rmp->{random_seed} ||= $exit->random_seed;
1952		3011
1953	my $data = cf::to_json $rmp;	3012	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1954	my $md5 = Digest::MD5::md5_hex $data;	3013	my $md5 = Digest::MD5::md5_hex $data;
1955	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	3014	my $meta = "$RANDOMDIR/$md5.meta";
1956		3015
1957	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	3016	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1958	aio_write $fh, 0, (length $data), $data, 0;	3017	aio_write $fh, 0, (length $data), $data, 0;
1959	undef $fh;	3018	undef $fh;
1960	aio_rename "$meta~", $meta;	3019	aio_rename "$meta~", $meta;
1961		3020
		3021	my $slaying = "?random/$md5";
		3022
		3023	if ($exit->valid) {
1962	$exit->slaying ("?random/$md5");	3024	$exit->slaying ("?random/$md5");
1963	$exit->msg (undef);	3025	$exit->msg (undef);
		3026	}
1964	}	3027	}
1965	}	3028	}
1966		3029
1967	sub cf::object::player::enter_exit {	3030	sub cf::object::player::enter_exit {
1968	my ($self, $exit) = @_;	3031	my ($self, $exit) = @_;
1969		3032
1970	return unless $self->type == cf::PLAYER;	3033	return unless $self->type == cf::PLAYER;
1971		3034
1972	if ($exit->slaying eq "/!") {
1973	#TODO: this should de-fi-ni-te-ly not be a sync-job
1974	cf::sync_job { prepare_random_map $exit };
1975	}
1976
1977	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1978	my $hp = $exit->stats->hp;
1979	my $sp = $exit->stats->sp;
1980
1981	$self->enter_link;	3035	$self->enter_link;
1982		3036
1983	(async {	3037	(async {
1984	$self->deactivate_recursive; # just to be sure	3038	$Coro::current->{desc} = "enter_exit";
		3039
1985	unless (eval {	3040	unless (eval {
		3041	$self->deactivate_recursive; # just to be sure
		3042
		3043	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3044	my $x = $exit->stats->hp;
		3045	my $y = $exit->stats->sp;
		3046
		3047	# special map handling
		3048	my $slaying = $exit->slaying;
		3049
		3050	# special map handling
		3051	if ($slaying eq "/!") {
		3052	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3053
		3054	prepare_random_map $exit
		3055	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3056
		3057	$map = $exit->slaying;
		3058
		3059	} elsif ($slaying eq '!up') {
		3060	$map = $exit->map->tile_path (cf::TILE_UP);
		3061	$x = $exit->x;
		3062	$y = $exit->y;
		3063
		3064	} elsif ($slaying eq '!down') {
		3065	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3066	$x = $exit->x;
		3067	$y = $exit->y;
		3068	}
		3069
1986	$self->goto ($slaying, $hp, $sp);	3070	$self->goto ($map, $x, $y);
1987		3071
		3072	# if exit is damned, update players death & WoR home-position
		3073	$self->contr->savebed ($map, $x, $y)
		3074	if $exit->flag (cf::FLAG_DAMNED);
		3075
1988	1;	3076	1
1989	}) {	3077	}) {
1990	$self->message ("Something went wrong deep within the crossfire server. "	3078	$self->message ("Something went wrong deep within the deliantra server. "
1991	. "I'll try to bring you back to the map you were before. "	3079	. "I'll try to bring you back to the map you were before. "
1992	. "Please report this to the dungeon master!",	3080	. "Please report this to the dungeon master!",
1993	cf::NDI_UNIQUE | cf::NDI_RED);	3081	cf::NDI_UNIQUE | cf::NDI_RED);
1994		3082
1995	warn "ERROR in enter_exit: $@";	3083	error "ERROR in enter_exit: $@";
1996	$self->leave_link;	3084	$self->leave_link;
1997	}	3085	}
1998	})->prio (1);	3086	})->prio (1);
1999	}	3087	}
2000		3088
2001	=head3 cf::client	3089	=head3 cf::client
2002		3090
2003	=over 4	3091	=over 4
2004		3092
2005	=item $client->send_drawinfo ($text, $flags)	3093	=item $client->send_big_packet ($pkt)
2006		3094
2007	Sends a drawinfo packet to the client. Circumvents output buffering so	3095	Like C<send_packet>, but tries to compress large packets, and fragments
2008	should not be used under normal circumstances.	3096	them as required.
2009		3097
2010	=cut	3098	=cut
2011		3099
		3100	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3101
		3102	sub cf::client::send_big_packet {
		3103	my ($self, $pkt) = @_;
		3104
		3105	# try lzf for large packets
		3106	$pkt = "lzf " . Compress::LZF::compress $pkt
		3107	if 1024 <= length $pkt and $self->{can_lzf};
		3108
		3109	# split very large packets
		3110	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3111	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3112	$pkt = "frag";
		3113	}
		3114
		3115	$self->send_packet ($pkt);
		3116	}
		3117
		3118	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3119
		3120	Send a msg packet to the client, formatting the msg for the client if
		3121	necessary. C<$type> should be a string identifying the type of the
		3122	message, with C<log> being the default. If C<$color> is negative, suppress
		3123	the message unless the client supports the msg packet.
		3124
		3125	=cut
		3126
		3127	# non-persistent channels (usually the info channel)
		3128	our %CHANNEL = (
		3129	"c/motd" => {
		3130	id => "infobox",
		3131	title => "MOTD",
		3132	reply => undef,
		3133	tooltip => "The message of the day",
		3134	},
		3135	"c/identify" => {
		3136	id => "infobox",
		3137	title => "Identify",
		3138	reply => undef,
		3139	tooltip => "Items recently identified",
		3140	},
		3141	"c/examine" => {
		3142	id => "infobox",
		3143	title => "Examine",
		3144	reply => undef,
		3145	tooltip => "Signs and other items you examined",
		3146	},
		3147	"c/shopinfo" => {
		3148	id => "infobox",
		3149	title => "Shop Info",
		3150	reply => undef,
		3151	tooltip => "What your bargaining skill tells you about the shop",
		3152	},
		3153	"c/book" => {
		3154	id => "infobox",
		3155	title => "Book",
		3156	reply => undef,
		3157	tooltip => "The contents of a note or book",
		3158	},
		3159	"c/lookat" => {
		3160	id => "infobox",
		3161	title => "Look",
		3162	reply => undef,
		3163	tooltip => "What you saw there",
		3164	},
		3165	"c/who" => {
		3166	id => "infobox",
		3167	title => "Players",
		3168	reply => undef,
		3169	tooltip => "Shows players who are currently online",
		3170	},
		3171	"c/body" => {
		3172	id => "infobox",
		3173	title => "Body Parts",
		3174	reply => undef,
		3175	tooltip => "Shows which body parts you posess and are available",
		3176	},
		3177	"c/statistics" => {
		3178	id => "infobox",
		3179	title => "Statistics",
		3180	reply => undef,
		3181	tooltip => "Shows your primary statistics",
		3182	},
		3183	"c/skills" => {
		3184	id => "infobox",
		3185	title => "Skills",
		3186	reply => undef,
		3187	tooltip => "Shows your experience per skill and item power",
		3188	},
		3189	"c/shopitems" => {
		3190	id => "infobox",
		3191	title => "Shop Items",
		3192	reply => undef,
		3193	tooltip => "Shows the items currently for sale in this shop",
		3194	},
		3195	"c/resistances" => {
		3196	id => "infobox",
		3197	title => "Resistances",
		3198	reply => undef,
		3199	tooltip => "Shows your resistances",
		3200	},
		3201	"c/pets" => {
		3202	id => "infobox",
		3203	title => "Pets",
		3204	reply => undef,
		3205	tooltip => "Shows information abotu your pets/a specific pet",
		3206	},
		3207	"c/perceiveself" => {
		3208	id => "infobox",
		3209	title => "Perceive Self",
		3210	reply => undef,
		3211	tooltip => "You gained detailed knowledge about yourself",
		3212	},
		3213	"c/uptime" => {
		3214	id => "infobox",
		3215	title => "Uptime",
		3216	reply => undef,
		3217	tooltip => "How long the server has been running since last restart",
		3218	},
		3219	"c/mapinfo" => {
		3220	id => "infobox",
		3221	title => "Map Info",
		3222	reply => undef,
		3223	tooltip => "Information related to the maps",
		3224	},
		3225	"c/party" => {
		3226	id => "party",
		3227	title => "Party",
		3228	reply => "gsay ",
		3229	tooltip => "Messages and chat related to your party",
		3230	},
		3231	"c/death" => {
		3232	id => "death",
		3233	title => "Death",
		3234	reply => undef,
		3235	tooltip => "Reason for and more info about your most recent death",
		3236	},
		3237	"c/fatal" => {
		3238	id => "fatal",
		3239	title => "Fatal Error",
		3240	reply => undef,
		3241	tooltip => "Reason for the server disconnect",
		3242	},
		3243	"c/say" => $SAY_CHANNEL,
		3244	"c/chat" => $CHAT_CHANNEL,
		3245	);
		3246
2012	sub cf::client::send_drawinfo {	3247	sub cf::client::send_msg {
		3248	my ($self, $channel, $msg, $color, @extra) = @_;
		3249
		3250	$msg = $self->pl->expand_cfpod ($msg)
		3251	unless $color & cf::NDI_VERBATIM;
		3252
		3253	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3254
		3255	# check predefined channels, for the benefit of C
		3256	if ($CHANNEL{$channel}) {
		3257	$channel = $CHANNEL{$channel};
		3258
		3259	$self->ext_msg (channel_info => $channel);
		3260	$channel = $channel->{id};
		3261
		3262	} elsif (ref $channel) {
		3263	# send meta info to client, if not yet sent
		3264	unless (exists $self->{channel}{$channel->{id}}) {
		3265	$self->{channel}{$channel->{id}} = $channel;
		3266	$self->ext_msg (channel_info => $channel);
		3267	}
		3268
		3269	$channel = $channel->{id};
		3270	}
		3271
		3272	return unless @extra || length $msg;
		3273
		3274	# default colour, mask it out
		3275	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3276	if $color & cf::NDI_DEF;
		3277
		3278	my $pkt = "msg "
		3279	. $self->{json_coder}->encode (
		3280	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3281	);
		3282
		3283	$self->send_big_packet ($pkt);
		3284	}
		3285
		3286	=item $client->ext_msg ($type, @msg)
		3287
		3288	Sends an ext event to the client.
		3289
		3290	=cut
		3291
		3292	sub cf::client::ext_msg($$@) {
2013	my ($self, $text, $flags) = @_;	3293	my ($self, $type, @msg) = @_;
2014		3294
2015	utf8::encode $text;	3295	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2016	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2017	}	3296	}
2018
2019		3297
2020	=item $success = $client->query ($flags, "text", \&cb)	3298	=item $success = $client->query ($flags, "text", \&cb)
2021		3299
2022	Queues a query to the client, calling the given callback with	3300	Queues a query to the client, calling the given callback with
2023	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3301	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2024	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3302	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2025		3303
2026	Queries can fail, so check the return code. Or don't, as queries will become	3304	Queries can fail, so check the return code. Or don't, as queries will
2027	reliable at some point in the future.	3305	become reliable at some point in the future.
2028		3306
2029	=cut	3307	=cut
2030		3308
2031	sub cf::client::query {	3309	sub cf::client::query {
2032	my ($self, $flags, $text, $cb) = @_;	3310	my ($self, $flags, $text, $cb) = @_;
…		…
2040	utf8::encode $text;	3318	utf8::encode $text;
2041	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3319	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2042		3320
2043	$self->send_packet ($self->{query_queue}[0][0])	3321	$self->send_packet ($self->{query_queue}[0][0])
2044	if @{ $self->{query_queue} } == 1;	3322	if @{ $self->{query_queue} } == 1;
		3323
		3324	1
		3325	}
		3326
		3327	=item $client->update_command_faces
		3328
		3329	=cut
		3330
		3331	our %COMMAND_FACE;
		3332
		3333	sub cf::client::update_command_faces {
		3334	my ($self) = @_;
		3335
		3336	my @faces = grep $_,
		3337	$COMMAND_FACE{preferred},
		3338	$COMMAND_FACE{standard},
		3339	$COMMAND_FACE{skill},
		3340	$self->pl->ob->flag (cf::FLAG_WIZ) ? $COMMAND_FACE{dm} : (),
		3341	$COMMAND_FACE{emote},
		3342	;
		3343
		3344	$self->send_face ($_)
		3345	for @faces;
		3346	$self->flush_fx;
		3347
		3348	$self->ext_msg (command_list => @faces);
		3349	}
		3350
		3351	=item cf::client::set_command_face $type, $commands
		3352
		3353	=cut
		3354
		3355	sub cf::client::set_command_face {
		3356	my ($type, $list) = @_;
		3357
		3358	my $idx = &cf::face::set ( #d# ugly forward reference
		3359	"command_list/$type" => cf::FT_RSRC,
		3360	JSON::XS->new->utf8->encode ([ sort @$list ])
		3361	);
		3362
		3363	$COMMAND_FACE{$type} = $idx;
2045	}	3364	}
2046		3365
2047	cf::client->attach (	3366	cf::client->attach (
		3367	on_connect => sub {
		3368	my ($ns) = @_;
		3369
		3370	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3371	},
2048	on_reply => sub {	3372	on_reply => sub {
2049	my ($ns, $msg) = @_;	3373	my ($ns, $msg) = @_;
2050		3374
2051	# this weird shuffling is so that direct followup queries	3375	# this weird shuffling is so that direct followup queries
2052	# get handled first	3376	# get handled first
…		…
2064	} else {	3388	} else {
2065	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3389	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2066	}	3390	}
2067	}	3391	}
2068	},	3392	},
		3393	on_exticmd => sub {
		3394	my ($ns, $buf) = @_;
		3395
		3396	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3397
		3398	if (ref $msg) {
		3399	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3400
		3401	if (my $cb = $EXTIACMD{$type}) {
		3402	$cb->(
		3403	$ns,
		3404	sub {
		3405	$ns->ext_msg ("reply-$reply", @_)
		3406	if $reply;
		3407	},
		3408	@payload
		3409	);
		3410	} else {
		3411	my @reply;
		3412
		3413	if (my $cb = $EXTICMD{$type}) {
		3414	@reply = $cb->($ns, @payload);
		3415	}
		3416
		3417	$ns->ext_msg ("reply-$reply", @reply)
		3418	if $reply;
		3419	}
		3420	} else {
		3421	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3422	}
		3423
		3424	cf::override;
		3425	},
2069	);	3426	);
2070		3427
2071	=item $client->async (\&cb)	3428	=item $client->async (\&cb)
2072		3429
2073	Create a new coroutine, running the specified callback. The coroutine will	3430	Create a new coroutine, running the specified callback. The coroutine will
…		…
2089		3446
2090	$coro	3447	$coro
2091	}	3448	}
2092		3449
2093	cf::client->attach (	3450	cf::client->attach (
2094	on_destroy => sub {	3451	on_client_destroy => sub {
2095	my ($ns) = @_;	3452	my ($ns) = @_;
2096		3453
2097	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3454	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2098	},	3455	},
2099	);	3456	);
…		…
2114	our $safe = new Safe "safe";	3471	our $safe = new Safe "safe";
2115	our $safe_hole = new Safe::Hole;	3472	our $safe_hole = new Safe::Hole;
2116		3473
2117	$SIG{FPE} = 'IGNORE';	3474	$SIG{FPE} = 'IGNORE';
2118		3475
2119	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3476	$safe->permit_only (Opcode::opset qw(
		3477	:base_core :base_mem :base_orig :base_math :base_loop
		3478	grepstart grepwhile mapstart mapwhile
		3479	sort time
		3480	));
2120		3481
2121	# here we export the classes and methods available to script code	3482	# here we export the classes and methods available to script code
2122		3483
2123	=pod	3484	=pod
2124		3485
2125	The following functions and methods are available within a safe environment:	3486	The following functions and methods are available within a safe environment:
2126		3487
2127	cf::object contr pay_amount pay_player map	3488	cf::object
		3489	contr pay_amount pay_player map x y force_find force_add destroy
		3490	insert remove name archname title slaying race decrease split
		3491	value
		3492
2128	cf::object::player player	3493	cf::object::player
2129	cf::player peaceful	3494	player
2130	cf::map trigger	3495
		3496	cf::player
		3497	peaceful
		3498
		3499	cf::map
		3500	trigger
2131		3501
2132	=cut	3502	=cut
2133		3503
2134	for (	3504	for (
2135	["cf::object" => qw(contr pay_amount pay_player map)],	3505	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3506	insert remove inv nrof name archname title slaying race
		3507	decrease split destroy change_exp value msg lore send_msg)],
2136	["cf::object::player" => qw(player)],	3508	["cf::object::player" => qw(player)],
2137	["cf::player" => qw(peaceful)],	3509	["cf::player" => qw(peaceful send_msg)],
2138	["cf::map" => qw(trigger)],	3510	["cf::map" => qw(trigger)],
2139	) {	3511	) {
2140	no strict 'refs';
2141	my ($pkg, @funs) = @$_;	3512	my ($pkg, @funs) = @$_;
2142	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3513	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2143	for @funs;	3514	for @funs;
2144	}	3515	}
2145		3516
…		…
2160		3531
2161	my $qcode = $code;	3532	my $qcode = $code;
2162	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3533	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2163	$qcode =~ s/\n/\\n/g;	3534	$qcode =~ s/\n/\\n/g;
2164		3535
		3536	%vars = (_dummy => 0) unless %vars;
		3537
		3538	my @res;
2165	local $_;	3539	local $_;
2166	local @safe::cf::_safe_eval_args = values %vars;
2167		3540
2168	my $eval =	3541	my $eval =
2169	"do {\n"	3542	"do {\n"
2170	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3543	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2171	. "#line 0 \"{$qcode}\"\n"	3544	. "#line 0 \"{$qcode}\"\n"
2172	. $code	3545	. $code
2173	. "\n}"	3546	. "\n}"
2174	;	3547	;
2175		3548
		3549	if ($CFG{safe_eval}) {
2176	sub_generation_inc;	3550	sub_generation_inc;
		3551	local @safe::cf::_safe_eval_args = values %vars;
2177	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3552	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2178	sub_generation_inc;	3553	sub_generation_inc;
		3554	} else {
		3555	local @cf::_safe_eval_args = values %vars;
		3556	@res = wantarray ? eval eval : scalar eval $eval;
		3557	}
2179		3558
2180	if ($@) {	3559	if ($@) {
2181	warn "$@";	3560	warn "$@",
2182	warn "while executing safe code '$code'\n";	3561	"while executing safe code '$code'\n",
2183	warn "with arguments " . (join " ", %vars) . "\n";	3562	"with arguments " . (join " ", %vars) . "\n";
2184	}	3563	}
2185		3564
2186	wantarray ? @res : $res[0]	3565	wantarray ? @res : $res[0]
2187	}	3566	}
2188		3567
…		…
2202	=cut	3581	=cut
2203		3582
2204	sub register_script_function {	3583	sub register_script_function {
2205	my ($fun, $cb) = @_;	3584	my ($fun, $cb) = @_;
2206		3585
2207	no strict 'refs';	3586	$fun = "safe::$fun" if $CFG{safe_eval};
2208	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3587	*$fun = $safe_hole->wrap ($cb);
2209	}	3588	}
2210		3589
2211	=back	3590	=back
2212		3591
2213	=cut	3592	=cut
2214
2215	#############################################################################
2216
2217	=head2 EXTENSION DATABASE SUPPORT
2218
2219	Crossfire maintains a very simple database for extension use. It can
2220	currently store anything that can be serialised using Storable, which
2221	excludes objects.
2222
2223	The parameter C<$family> should best start with the name of the extension
2224	using it, it should be unique.
2225
2226	=over 4
2227
2228	=item $value = cf::db_get $family => $key
2229
2230	Returns a single value from the database.
2231
2232	=item cf::db_put $family => $key => $value
2233
2234	Stores the given C<$value> in the family.
2235
2236	=cut
2237
2238	our $DB;
2239
2240	sub db_init {
2241	unless ($DB) {
2242	$DB = BDB::db_create $DB_ENV;
2243
2244	cf::sync_job {
2245	eval {
2246	$DB->set_flags (BDB::CHKSUM);
2247
2248	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2249	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2250	cf::cleanup "db_open(db): $!" if $!;
2251	};
2252	cf::cleanup "db_open(db): $@" if $@;
2253	};
2254
2255	my $path = cf::localdir . "/database.pst";
2256	if (stat $path) {
2257	cf::sync_job {
2258	my $pst = Storable::retrieve $path;
2259
2260	cf::db_put (board => data => $pst->{board});
2261	cf::db_put (guildrules => data => $pst->{guildrules});
2262	cf::db_put (rent => balance => $pst->{rent}{balance});
2263	BDB::db_env_txn_checkpoint $DB_ENV;
2264
2265	unlink $path;
2266	};
2267	}
2268	}
2269	}
2270
2271	sub db_get($$) {
2272	my $key = "$_[0]/$_[1]";
2273
2274	cf::sync_job {
2275	BDB::db_get $DB, undef, $key, my $data;
2276
2277	$! ? ()
2278	: Compress::LZF::sthaw $data
2279	}
2280	}
2281
2282	sub db_put($$$) {
2283	BDB::dbreq_pri 4;
2284	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2285	}
2286		3593
2287	#############################################################################	3594	#############################################################################
2288	# the server's init and main functions	3595	# the server's init and main functions
2289		3596
		3597	{
		3598	package cf::face;
		3599
		3600	our %HASH; # hash => idx
		3601	our @DATA; # dynamically-created facedata, only faceste 0 used
		3602	our @FOFS; # file offset, if > 0
		3603	our @SIZE; # size of face, in octets
		3604	our @META; # meta hash of face, if any
		3605	our $DATAFH; # facedata filehandle
		3606
		3607	# internal api, not finalised
		3608	sub set {
		3609	my ($name, $type, $data) = @_;
		3610
		3611	my $idx = cf::face::find $name;
		3612
		3613	if ($idx) {
		3614	delete $HASH{cf::face::get_csum $idx};
		3615	} else {
		3616	$idx = cf::face::alloc $name;
		3617	}
		3618
		3619	my $hash = cf::face::mangle_csum Digest::MD5::md5 $data;
		3620
		3621	cf::face::set_type $idx, $type;
		3622	cf::face::set_csum $idx, 0, $hash;
		3623
		3624	# we need to destroy the SV itself, not just modify it, as a running ix
		3625	# might hold a reference to it: "delete" achieves that.
		3626	delete $FOFS[0][$idx];
		3627	delete $DATA[0][$idx];
		3628	$DATA[0][$idx] = $data;
		3629	$SIZE[0][$idx] = length $data;
		3630	delete $META[$idx];
		3631	$HASH{$hash} = $idx;#d#
		3632
		3633	$idx
		3634	}
		3635
		3636	sub _get_data($$$) {
		3637	my ($idx, $set, $cb) = @_;
		3638
		3639	if (defined $DATA[$set][$idx]) {
		3640	$cb->($DATA[$set][$idx]);
		3641	} elsif (my $fofs = $FOFS[$set][$idx]) {
		3642	my $size = $SIZE[$set][$idx];
		3643	my $buf;
		3644	IO::AIO::aio_read $DATAFH, $fofs, $size, $buf, 0, sub {
		3645	if ($_[0] == $size) {
		3646	#cf::debug "read face $idx, $size from $fofs as ", length $buf;#d#
		3647	$cb->($buf);
		3648	} else {
		3649	cf::error "INTERNAL ERROR: unable to read facedata for face $idx#$set ($size, $fofs), ignoring request.";
		3650	}
		3651	};
		3652	} else {
		3653	cf::error "requested facedata for unknown face $idx#$set, ignoring.";
		3654	}
		3655	}
		3656
		3657	# rather ineffient
		3658	sub cf::face::get_data($;$) {
		3659	my ($idx, $set) = @_;
		3660
		3661	_get_data $idx, $set, Coro::rouse_cb;
		3662	Coro::rouse_wait
		3663	}
		3664
		3665	sub cf::face::ix {
		3666	my ($ns, $set, $idx, $pri) = @_;
		3667
		3668	_get_data $idx, $set, sub {
		3669	$ns->ix_send ($idx, $pri, $_[0]);
		3670	};
		3671	}
		3672	}
		3673
2290	sub load_facedata {	3674	sub load_facedata($) {
2291	my $path = sprintf "%s/facedata", cf::datadir;	3675	my ($path) = @_;
2292		3676
		3677	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3678
2293	warn "loading facedata from $path\n";	3679	trace "loading facedata from $path\n";
2294		3680
2295	my $faces;	3681	my $facedata = decode_storable load_file "$path/faceinfo";
2296	0 < aio_load $path, $faces
2297	or die "$path: $!";
2298		3682
2299	Coro::cede;
2300	$faces = Storable::thaw $faces;
2301	Coro::cede;
2302
2303	my $meta = delete $faces->{""};
2304	$meta->{version} == 1	3683	$facedata->{version} == 2
2305	or cf::cleanup "$path: version mismatch, cannot proceed.";	3684	or cf::cleanup "$path/faceinfo: version mismatch, cannot proceed.";
2306		3685
2307	while (my ($face, $info) = each %$faces) {	3686	my $fh = aio_open "$DATADIR/facedata", IO::AIO::O_RDONLY, 0
		3687	or cf::cleanup "$path/facedata: $!, cannot proceed.";
		3688
		3689	get_slot 1, -100, "load_facedata"; # make sure we get a very big slot
		3690
		3691	# BEGIN ATOMIC
		3692	# from here on, everything must be atomic - no thread switch allowed
		3693	my $t1 = EV::time;
		3694
		3695	{
		3696	my $faces = $facedata->{faceinfo};
		3697
		3698	for my $face (sort keys %$faces) {
		3699	my $info = $faces->{$face};
2308	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3700	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2309	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2310	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2311	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2312	Coro::cede;
2313	}
2314		3701
		3702	cf::face::set_visibility $idx, $info->{visibility};
		3703	cf::face::set_magicmap $idx, $info->{magicmap};
		3704	cf::face::set_csum $idx, 0, $info->{hash64}; $cf::face::SIZE[0][$idx] = $info->{size64}; $cf::face::FOFS[0][$idx] = $info->{fofs64};
		3705	cf::face::set_csum $idx, 1, $info->{hash32}; $cf::face::SIZE[1][$idx] = $info->{size32}; $cf::face::FOFS[1][$idx] = $info->{fofs32};
		3706	cf::face::set_csum $idx, 2, $info->{glyph}; $cf::face::DATA[2][$idx] = $info->{glyph};
		3707	$cf::face::HASH{$info->{hash64}} = $idx;
		3708	delete $cf::face::META[$idx];
		3709	}
		3710
2315	while (my ($face, $info) = each %$faces) {	3711	while (my ($face, $info) = each %$faces) {
2316	next unless $info->{smooth};	3712	next unless $info->{smooth};
		3713
2317	my $idx = cf::face::find $face	3714	my $idx = cf::face::find $face
		3715	or next;
		3716
		3717	if (my $smooth = cf::face::find $info->{smooth}) {
		3718	cf::face::set_smooth $idx, $smooth;
		3719	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3720	} else {
		3721	error "smooth face '$info->{smooth}' not found for face '$face'";
		3722	}
		3723	}
		3724	}
		3725
		3726	{
		3727	my $anims = $facedata->{animinfo};
		3728
		3729	while (my ($anim, $info) = each %$anims) {
		3730	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3731	}
		3732
		3733	cf::anim::invalidate_all; # d'oh
		3734	}
		3735
		3736	{
		3737	my $res = $facedata->{resource};
		3738
		3739	while (my ($name, $info) = each %$res) {
		3740	if (defined (my $type = $info->{type})) {
		3741	# TODO: different hash - must free and use new index, or cache ixface data queue
		3742	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3743
		3744	cf::face::set_type $idx, $type;
		3745	cf::face::set_csum $idx, 0, $info->{hash};
		3746	$cf::face::SIZE[0][$idx] = $info->{size};
		3747	$cf::face::FOFS[0][$idx] = $info->{fofs};
		3748	$cf::face::META[$idx] = $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3749	$cf::face::HASH{$info->{hash}} = $idx;
		3750	} else {
		3751	# $RESOURCE{$name} = $info; # unused
		3752	}
		3753	}
		3754	}
		3755
		3756	($fh, $cf::face::DATAFH) = ($cf::face::DATAFH, $fh);
		3757
		3758	# HACK to clear player env face cache, we need some signal framework
		3759	# for this (global event?)
		3760	%ext::player_env::MUSIC_FACE_CACHE = ();
		3761
		3762	# END ATOMIC
		3763
		3764	cf::debug "facedata atomic update time ", EV::time - $t1;
		3765
		3766	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3767
		3768	aio_close $fh if $fh; # close old facedata
		3769
		3770	1
		3771	}
		3772
		3773	register_exticmd fx_want => sub {
		3774	my ($ns, $want) = @_;
		3775
		3776	while (my ($k, $v) = each %$want) {
		3777	$ns->fx_want ($k, $v);
		3778	}
		3779	};
		3780
		3781	sub load_resource_file($) {
		3782	my $guard = lock_acquire "load_resource_file";
		3783
		3784	my $status = load_resource_file_ $_[0];
		3785	get_slot 0.1, 100;
		3786	cf::arch::commit_load;
		3787
		3788	$status
		3789	}
		3790
		3791	sub reload_exp_table {
		3792	_reload_exp_table;
		3793
		3794	cf::face::set
		3795	"res/exp_table" => FT_RSRC,
		3796	JSON::XS->new->utf8->canonical->encode (
		3797	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3798	);
		3799	}
		3800
		3801	sub reload_materials {
		3802	_reload_materials;
		3803	}
		3804
		3805	sub reload_regions {
		3806	# HACK to clear player env face cache, we need some signal framework
		3807	# for this (global event?)
		3808	%ext::player_env::MUSIC_FACE_CACHE = ();
		3809
		3810	load_resource_file "$MAPDIR/regions"
		3811	or die "unable to load regions file\n";
		3812
		3813	for (cf::region::list) {
		3814	$_->{match} = qr/$_->{match}/
		3815	if exists $_->{match};
		3816	}
		3817	}
		3818
		3819	sub reload_facedata {
		3820	load_facedata $DATADIR
		3821	or die "unable to load facedata\n";
		3822	}
		3823
		3824	sub reload_archetypes {
		3825	load_resource_file "$DATADIR/archetypes"
		3826	or die "unable to load archetypes\n";
		3827
		3828	cf::face::set
		3829	"res/skill_info" => FT_RSRC,
		3830	JSON::XS->new->utf8->canonical->encode (
		3831	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3832	);
		3833
		3834	cf::face::set
		3835	"res/spell_paths" => FT_RSRC,
		3836	JSON::XS->new->utf8->canonical->encode (
		3837	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3838	);
		3839
		3840	# command completion
		3841	my @commands;
		3842
		3843	for (0..cf::arch::skillvec_size - 1) {
		3844	my $skill = cf::arch::skillvec $_;
		3845	my $name = $skill->name;
		3846	my $flags = cf::skill_flags $skill->subtype;
		3847
		3848	push @commands, "ready_skill $name" if $flags & (SF_COMBAT | SF_RANGED | SF_GRACE);
		3849	push @commands, "use_skill $name" if $flags & (SF_USE | SF_AUTARK | SF_GRACE);
		3850	}
		3851
		3852	cf::client::set_command_face skill => \@commands;
		3853	}
		3854
		3855	sub reload_treasures {
		3856	load_resource_file "$DATADIR/treasures"
		3857	or die "unable to load treasurelists\n";
		3858	}
		3859
		3860	sub reload_sound {
		3861	trace "loading sound config from $DATADIR/sound\n";
		3862
		3863	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3864
		3865	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3866	my $sound = $soundconf->{compat}[$_]
2318	or next;	3867	or next;
2319	if (my $smooth = cf::face::find $info->{smooth}) {
2320	cf::face::set_smooth $idx, $smooth;
2321	} else {
2322	warn "smooth face '$info->{smooth}' not found for face '$face'";
2323	}
2324	Coro::cede;
2325	}
2326		3868
		3869	my $face = cf::face::find "sound/$sound->[1]";
		3870	cf::sound::set $sound->[0] => $face;
		3871	cf::sound::old_sound_index $_, $face; # gcfclient-compat
2327	1	3872	}
		3873
		3874	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3875	my $face = cf::face::find "sound/$v";
		3876	cf::sound::set $k => $face;
		3877	}
2328	}	3878	}
2329		3879
2330	sub reload_resources {	3880	sub reload_resources {
2331	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3881	trace "reloading resource files...\n";
2332	or die "unable to load regions file\n";#d#	3882
		3883	reload_materials;
2333	load_facedata	3884	reload_facedata;
2334	or die "unable to load facedata\n";#d#	3885	reload_exp_table;
2335	}	3886	reload_sound;
2336		3887	reload_archetypes;
2337	sub init {
2338	reload_resources;	3888	reload_regions;
2339	}	3889	reload_treasures;
2340		3890
2341	sub cfg_load {	3891	trace "finished reloading resource files\n";
2342	open my $fh, "<:utf8", cf::confdir . "/config"	3892	}
2343	or return;
2344		3893
2345	local $/;	3894	sub reload_config {
2346	*CFG = YAML::Syck::Load <$fh>;	3895	trace "reloading config file...\n";
2347		3896
		3897	my $config = load_file "$CONFDIR/config";
		3898	utf8::decode $config;
		3899	*CFG = decode_yaml $config;
		3900
2348	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3901	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2349		3902
2350	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3903	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2351	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3904	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2352		3905
2353	if (exists $CFG{mlockall}) {	3906	if (exists $CFG{mlockall}) {
…		…
2357	};	3910	};
2358	warn $@ if $@;	3911	warn $@ if $@;
2359	}	3912	}
2360	}	3913	}
2361		3914
		3915	sub pidfile() {
		3916	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3917	or die "$PIDFILE: $!";
		3918	flock $fh, &Fcntl::LOCK_EX
		3919	or die "$PIDFILE: flock: $!";
		3920	$fh
		3921	}
		3922
		3923	# make sure only one server instance is running at any one time
		3924	sub atomic {
		3925	my $fh = pidfile;
		3926
		3927	my $pid = <$fh>;
		3928	kill 9, $pid if $pid > 0;
		3929
		3930	seek $fh, 0, 0;
		3931	print $fh $$;
		3932	}
		3933
		3934	sub main_loop {
		3935	trace "EV::run starting\n";
		3936	if (1) {
		3937	EV::run;
		3938	}
		3939	trace "EV::run returned\n";
		3940	goto &main_loop unless $REALLY_UNLOOP;
		3941	}
		3942
2362	sub main {	3943	sub main {
		3944	cf::init_globals; # initialise logging
		3945
		3946	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3947	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3948	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3949	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3950
		3951	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3952
2363	# we must not ever block the main coroutine	3953	# we must not ever block the main coroutine
2364	local $Coro::idle = sub {	3954	$Coro::idle = sub {
2365	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3955	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2366	(async {	3956	(async {
2367	Event::one_event;	3957	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3958	EV::run EV::RUN_ONCE;
2368	})->prio (Coro::PRIO_MAX);	3959	})->prio (Coro::PRIO_MAX);
2369	};	3960	};
2370		3961
2371	cfg_load;	3962	evthread_start IO::AIO::poll_fileno;
		3963
		3964	cf::sync_job {
		3965	cf::incloader::init ();
		3966
2372	db_init;	3967	db_init;
		3968
		3969	cf::init_anim;
		3970	cf::init_attackmess;
		3971	cf::init_dynamic;
		3972
		3973	cf::load_settings;
		3974
		3975	reload_resources;
		3976	reload_config;
		3977
		3978	cf::init_uuid;
		3979	cf::init_signals;
		3980	cf::init_skills;
		3981
		3982	cf::init_beforeplay;
		3983
		3984	atomic;
		3985
2373	load_extensions;	3986	load_extensions;
2374		3987
2375	$TICK_WATCHER->start;	3988	utime time, time, $RUNTIMEFILE;
2376	Event::loop;	3989
		3990	# no (long-running) fork's whatsoever before this point(!)
		3991	use POSIX ();
		3992	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3993
		3994	cf::_post_init 0;
		3995	};
		3996
		3997	cf::object::thawer::errors_are_fatal 0;
		3998	info "parse errors in files are no longer fatal from this point on.\n";
		3999
		4000	AE::postpone {
		4001	undef &main; # free gobs of memory :)
		4002	};
		4003
		4004	goto &main_loop;
2377	}	4005	}
2378		4006
2379	#############################################################################	4007	#############################################################################
2380	# initialisation and cleanup	4008	# initialisation and cleanup
2381		4009
2382	# install some emergency cleanup handlers	4010	# install some emergency cleanup handlers
2383	BEGIN {	4011	BEGIN {
		4012	our %SIGWATCHER = ();
2384	for my $signal (qw(INT HUP TERM)) {	4013	for my $signal (qw(INT HUP TERM)) {
2385	Event->signal (	4014	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2386	reentrant => 0,
2387	data => WF_AUTOCANCEL,
2388	signal => $signal,
2389	prio => 0,
2390	cb => sub {
2391	cf::cleanup "SIG$signal";	4015	cf::cleanup "SIG$signal";
2392	},
2393	);	4016	};
		4017	}
		4018	}
		4019
		4020	sub write_runtime_sync {
		4021	my $t0 = AE::time;
		4022
		4023	# first touch the runtime file to show we are still running:
		4024	# the fsync below can take a very very long time.
		4025
		4026	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		4027
		4028	my $guard = cf::lock_acquire "write_runtime";
		4029
		4030	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		4031	or return;
		4032
		4033	my $value = $cf::RUNTIME + 90 + 10;
		4034	# 10 is the runtime save interval, for a monotonic clock
		4035	# 60 allows for the watchdog to kill the server.
		4036
		4037	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4038	and return;
		4039
		4040	# always fsync - this file is important
		4041	aio_fsync $fh
		4042	and return;
		4043
		4044	# touch it again to show we are up-to-date
		4045	aio_utime $fh, undef, undef;
		4046
		4047	close $fh
		4048	or return;
		4049
		4050	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		4051	and return;
		4052
		4053	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		4054
2394	}	4055	1
		4056	}
		4057
		4058	our $uuid_lock;
		4059	our $uuid_skip;
		4060
		4061	sub write_uuid_sync($) {
		4062	$uuid_skip ||= $_[0];
		4063
		4064	return if $uuid_lock;
		4065	local $uuid_lock = 1;
		4066
		4067	my $uuid = "$LOCALDIR/uuid";
		4068
		4069	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		4070	or return;
		4071
		4072	my $value = uuid_seq uuid_cur;
		4073
		4074	unless ($value) {
		4075	info "cowardly refusing to write zero uuid value!\n";
		4076	return;
		4077	}
		4078
		4079	my $value = uuid_str $value + $uuid_skip;
		4080	$uuid_skip = 0;
		4081
		4082	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		4083	and return;
		4084
		4085	# always fsync - this file is important
		4086	aio_fsync $fh
		4087	and return;
		4088
		4089	close $fh
		4090	or return;
		4091
		4092	aio_rename "$uuid~", $uuid
		4093	and return;
		4094
		4095	trace "uuid file written ($value).\n";
		4096
		4097	1
		4098
		4099	}
		4100
		4101	sub write_uuid($$) {
		4102	my ($skip, $sync) = @_;
		4103
		4104	$sync ? write_uuid_sync $skip
		4105	: async { write_uuid_sync $skip };
2395	}	4106	}
2396		4107
2397	sub emergency_save() {	4108	sub emergency_save() {
2398	my $freeze_guard = cf::freeze_mainloop;	4109	my $freeze_guard = cf::freeze_mainloop;
2399		4110
2400	warn "enter emergency perl save\n";	4111	info "emergency_perl_save: enter\n";
		4112
		4113	# this is a trade-off: we want to be very quick here, so
		4114	# save all maps without fsync, and later call a global sync
		4115	# (which in turn might be very very slow)
		4116	local $USE_FSYNC = 0;
2401		4117
2402	cf::sync_job {	4118	cf::sync_job {
		4119	cf::write_runtime_sync; # external watchdog should not bark
		4120
2403	# use a peculiar iteration method to avoid tripping on perl	4121	# use a peculiar iteration method to avoid tripping on perl
2404	# refcount bugs in for. also avoids problems with players	4122	# refcount bugs in for. also avoids problems with players
2405	# and maps saved/destroyed asynchronously.	4123	# and maps saved/destroyed asynchronously.
2406	warn "begin emergency player save\n";	4124	info "emergency_perl_save: begin player save\n";
2407	for my $login (keys %cf::PLAYER) {	4125	for my $login (keys %cf::PLAYER) {
2408	my $pl = $cf::PLAYER{$login} or next;	4126	my $pl = $cf::PLAYER{$login} or next;
2409	$pl->valid or next;	4127	$pl->valid or next;
		4128	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2410	$pl->save;	4129	$pl->save;
2411	}	4130	}
2412	warn "end emergency player save\n";	4131	info "emergency_perl_save: end player save\n";
2413		4132
2414	warn "begin emergency map save\n";	4133	cf::write_runtime_sync; # external watchdog should not bark
		4134
		4135	info "emergency_perl_save: begin map save\n";
2415	for my $path (keys %cf::MAP) {	4136	for my $path (keys %cf::MAP) {
2416	my $map = $cf::MAP{$path} or next;	4137	my $map = $cf::MAP{$path} or next;
2417	$map->valid or next;	4138	$map->valid or next;
2418	$map->save;	4139	$map->save;
2419	}	4140	}
2420	warn "end emergency map save\n";	4141	info "emergency_perl_save: end map save\n";
2421		4142
2422	warn "begin emergency database checkpoint\n";	4143	cf::write_runtime_sync; # external watchdog should not bark
		4144
		4145	info "emergency_perl_save: begin database checkpoint\n";
2423	BDB::db_env_txn_checkpoint $DB_ENV;	4146	BDB::db_env_txn_checkpoint $DB_ENV;
2424	warn "end emergency database checkpoint\n";	4147	info "emergency_perl_save: end database checkpoint\n";
		4148
		4149	info "emergency_perl_save: begin write uuid\n";
		4150	write_uuid_sync 1;
		4151	info "emergency_perl_save: end write uuid\n";
		4152
		4153	cf::write_runtime_sync; # external watchdog should not bark
		4154
		4155	trace "emergency_perl_save: syncing database to disk";
		4156	BDB::db_env_txn_checkpoint $DB_ENV;
		4157
		4158	info "emergency_perl_save: starting sync\n";
		4159	IO::AIO::aio_sync sub {
		4160	info "emergency_perl_save: finished sync\n";
		4161	};
		4162
		4163	cf::write_runtime_sync; # external watchdog should not bark
		4164
		4165	trace "emergency_perl_save: flushing outstanding aio requests";
		4166	while (IO::AIO::nreqs || BDB::nreqs) {
		4167	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4168	}
		4169
		4170	cf::write_runtime_sync; # external watchdog should not bark
2425	};	4171	};
2426		4172
2427	warn "leave emergency perl save\n";	4173	info "emergency_perl_save: leave\n";
2428	}	4174	}
2429		4175
2430	sub post_cleanup {	4176	sub post_cleanup {
2431	my ($make_core) = @_;	4177	my ($make_core) = @_;
2432		4178
		4179	IO::AIO::flush;
		4180
2433	warn Carp::longmess "post_cleanup backtrace"	4181	error Carp::longmess "post_cleanup backtrace"
2434	if $make_core;	4182	if $make_core;
2435	}
2436		4183
		4184	my $fh = pidfile;
		4185	unlink $PIDFILE if <$fh> == $$;
		4186	}
		4187
		4188	# a safer delete_package, copied from Symbol
		4189	sub clear_package($) {
		4190	my $pkg = shift;
		4191
		4192	# expand to full symbol table name if needed
		4193	unless ($pkg =~ /^main::.*::$/) {
		4194	$pkg = "main$pkg" if $pkg =~ /^::/;
		4195	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4196	$pkg .= '::' unless $pkg =~ /::$/;
		4197	}
		4198
		4199	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4200	my $stem_symtab = *{$stem}{HASH};
		4201
		4202	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4203	or return;
		4204
		4205	# clear all symbols
		4206	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4207	for my $name (keys %$leaf_symtab) {
		4208	_gv_clear *{"$pkg$name"};
		4209	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4210	}
		4211	}
		4212
2437	sub reload() {	4213	sub do_reload_perl() {
2438	# can/must only be called in main	4214	# can/must only be called in main
2439	if ($Coro::current != $Coro::main) {	4215	unless (in_main) {
2440	warn "can only reload from main coroutine";	4216	error "can only reload from main coroutine";
2441	return;	4217	return;
2442	}	4218	}
2443		4219
2444	warn "reloading...";	4220	return if $RELOAD++;
2445		4221
2446	warn "entering sync_job";	4222	my $t1 = AE::time;
2447		4223
		4224	while ($RELOAD) {
		4225	cf::get_slot 0.1, -1, "reload_perl";
		4226	info "perl_reload: reloading...";
		4227
		4228	trace "perl_reload: entering sync_job";
		4229
2448	cf::sync_job {	4230	cf::sync_job {
2449	cf::write_runtime; # external watchdog should not bark
2450	cf::emergency_save;	4231	#cf::emergency_save;
2451	cf::write_runtime; # external watchdog should not bark
2452		4232
2453	warn "syncing database to disk";
2454	BDB::db_env_txn_checkpoint $DB_ENV;
2455
2456	# if anything goes wrong in here, we should simply crash as we already saved
2457
2458	warn "cancelling all WF_AUTOCANCEL watchers";
2459	for (Event::all_watchers) {
2460	$_->cancel if $_->data & WF_AUTOCANCEL;
2461	}
2462
2463	warn "flushing outstanding aio requests";
2464	for (;;) {
2465	BDB::flush;
2466	IO::AIO::flush;
2467	Coro::cede;
2468	last unless IO::AIO::nreqs || BDB::nreqs;
2469	warn "iterate...";
2470	}
2471
2472	++$RELOAD;
2473
2474	warn "cancelling all extension coros";	4233	trace "perl_reload: cancelling all extension coros";
2475	$_->cancel for values %EXT_CORO;	4234	$_->cancel for values %EXT_CORO;
2476	%EXT_CORO = ();	4235	%EXT_CORO = ();
2477		4236
2478	warn "removing commands";	4237	trace "perl_reload: removing commands";
2479	%COMMAND = ();	4238	%COMMAND = ();
2480		4239
2481	warn "removing ext commands";	4240	trace "perl_reload: removing ext/exti commands";
2482	%EXTCMD = ();	4241	%EXTCMD = ();
		4242	%EXTICMD = ();
2483		4243
2484	warn "unloading/nuking all extensions";	4244	trace "perl_reload: unloading/nuking all extensions";
2485	for my $pkg (@EXTS) {	4245	for my $pkg (@EXTS) {
2486	warn "... unloading $pkg";	4246	trace "... unloading $pkg";
2487		4247
2488	if (my $cb = $pkg->can ("unload")) {	4248	if (my $cb = $pkg->can ("unload")) {
2489	eval {	4249	eval {
2490	$cb->($pkg);	4250	$cb->($pkg);
2491	1	4251	1
2492	} or warn "$pkg unloaded, but with errors: $@";	4252	} or error "$pkg unloaded, but with errors: $@";
		4253	}
		4254
		4255	trace "... clearing $pkg";
		4256	clear_package $pkg;
2493	}	4257	}
2494		4258
2495	warn "... nuking $pkg";
2496	Symbol::delete_package $pkg;
2497	}
2498
2499	warn "unloading all perl modules loaded from $LIBDIR";	4259	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2500	while (my ($k, $v) = each %INC) {	4260	while (my ($k, $v) = each %INC) {
2501	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4261	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2502		4262
2503	warn "... unloading $k";	4263	trace "... unloading $k";
2504	delete $INC{$k};	4264	delete $INC{$k};
2505		4265
2506	$k =~ s/\.pm$//;	4266	$k =~ s/\.pm$//;
2507	$k =~ s/\//::/g;	4267	$k =~ s/\//::/g;
2508		4268
2509	if (my $cb = $k->can ("unload_module")) {	4269	if (my $cb = $k->can ("unload_module")) {
2510	$cb->();	4270	$cb->();
		4271	}
		4272
		4273	clear_package $k;
2511	}	4274	}
2512		4275
2513	Symbol::delete_package $k;
2514	}
2515
2516	warn "getting rid of safe::, as good as possible";	4276	trace "perl_reload: getting rid of safe::, as good as possible";
2517	Symbol::delete_package "safe::$_"	4277	clear_package "safe::$_"
2518	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4278	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2519		4279
2520	warn "unloading cf.pm \"a bit\"";	4280	trace "perl_reload: unloading cf.pm \"a bit\"";
2521	delete $INC{"cf.pm"};	4281	delete $INC{"cf.pm"};
		4282	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2522		4283
2523	# don't, removes xs symbols, too,	4284	# don't, removes xs symbols, too,
2524	# and global variables created in xs	4285	# and global variables created in xs
2525	#Symbol::delete_package __PACKAGE__;	4286	#clear_package __PACKAGE__;
2526		4287
2527	warn "unload completed, starting to reload now";	4288	info "perl_reload: unload completed, starting to reload now";
2528		4289
2529	warn "reloading cf.pm";	4290	trace "perl_reload: reloading cf.pm";
2530	require cf;	4291	require cf;
2531	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4292	cf::_connect_to_perl_1;
2532		4293
2533	warn "loading config and database again";	4294	trace "perl_reload: loading config and database again";
2534	cf::cfg_load;	4295	cf::reload_config;
2535		4296
2536	warn "loading extensions";	4297	trace "perl_reload: loading extensions";
2537	cf::load_extensions;	4298	cf::load_extensions;
2538		4299
		4300	if ($REATTACH_ON_RELOAD) {
2539	warn "reattaching attachments to objects/players";	4301	trace "perl_reload: reattaching attachments to objects/players";
2540	_global_reattach; # objects, sockets	4302	_global_reattach; # objects, sockets
2541	warn "reattaching attachments to maps";	4303	trace "perl_reload: reattaching attachments to maps";
2542	reattach $_ for values %MAP;	4304	reattach $_ for values %MAP;
2543	warn "reattaching attachments to players";	4305	trace "perl_reload: reattaching attachments to players";
2544	reattach $_ for values %PLAYER;	4306	reattach $_ for values %PLAYER;
		4307	}
2545		4308
2546	warn "loading reloadable resources";	4309	cf::_post_init 1;
2547	reload_resources;
2548		4310
2549	warn "leaving sync_job";	4311	trace "perl_reload: leaving sync_job";
2550		4312
2551	1	4313	1
2552	} or do {	4314	} or do {
2553	warn $@;	4315	error $@;
2554	warn "error while reloading, exiting.";	4316	cf::cleanup "perl_reload: error, exiting.";
2555	exit 1;	4317	};
		4318
		4319	--$RELOAD;
		4320	}
		4321
		4322	$t1 = AE::time - $t1;
		4323	info "perl_reload: completed in ${t1}s\n";
		4324	};
		4325
		4326	our $RELOAD_WATCHER; # used only during reload
		4327
		4328	sub reload_perl() {
		4329	# doing reload synchronously and two reloads happen back-to-back,
		4330	# coro crashes during coro_state_free->destroy here.
		4331
		4332	$RELOAD_WATCHER ||= cf::async {
		4333	Coro::AIO::aio_wait cache_extensions;
		4334
		4335	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4336	do_reload_perl;
		4337	undef $RELOAD_WATCHER;
		4338	};
2556	};	4339	};
2557		4340	}
2558	warn "reloaded";
2559	};
2560
2561	our $RELOAD_WATCHER; # used only during reload
2562		4341
2563	register_command "reload" => sub {	4342	register_command "reload" => sub {
2564	my ($who, $arg) = @_;	4343	my ($who, $arg) = @_;
2565		4344
2566	if ($who->flag (FLAG_WIZ)) {	4345	if ($who->flag (FLAG_WIZ)) {
2567	$who->message ("reloading server.");	4346	$who->message ("reloading server.");
2568		4347	async {
2569	# doing reload synchronously and two reloads happen back-to-back,	4348	$Coro::current->{desc} = "perl_reload";
2570	# coro crashes during coro_state_free->destroy here.
2571
2572	$RELOAD_WATCHER ||= Event->timer (
2573	reentrant => 0,
2574	after => 0,
2575	data => WF_AUTOCANCEL,
2576	cb => sub {
2577	reload;	4349	reload_perl;
2578	undef $RELOAD_WATCHER;
2579	},
2580	);	4350	};
2581	}	4351	}
2582	};	4352	};
2583		4353
2584	unshift @INC, $LIBDIR;	4354	#############################################################################
2585		4355
2586	my $bug_warning = 0;	4356	my $bug_warning = 0;
2587		4357
2588	$TICK_WATCHER = Event->timer (	4358	sub wait_for_tick() {
2589	reentrant => 0,	4359	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2590	parked => 1,	4360
2591	prio => 0,	4361	$WAIT_FOR_TICK->wait;
2592	at => $NEXT_TICK || $TICK,	4362	}
2593	data => WF_AUTOCANCEL,	4363
2594	cb => sub {	4364	sub wait_for_tick_begin() {
		4365	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4366
		4367	my $signal = new Coro::Signal;
		4368	push @WAIT_FOR_TICK_BEGIN, $signal;
		4369	$signal->wait;
		4370	}
		4371
		4372	sub tick {
2595	if ($Coro::current != $Coro::main) {	4373	if ($Coro::current != $Coro::main) {
2596	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4374	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2597	unless ++$bug_warning > 10;	4375	unless ++$bug_warning > 10;
2598	return;	4376	return;
2599	}	4377	}
2600		4378
2601	$NOW = Event::time;	4379	cf::one_tick; # one server iteration
2602		4380
2603	cf::server_tick; # one server iteration	4381	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2604	$RUNTIME += $TICK;
2605	$NEXT_TICK += $TICK;
2606		4382
2607	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4383	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2608	$NEXT_RUNTIME_WRITE = $NOW + 10;	4384	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2609	Coro::async_pool {	4385	Coro::async_pool {
		4386	$Coro::current->{desc} = "runtime saver";
2610	write_runtime	4387	write_runtime_sync
2611	or warn "ERROR: unable to write runtime file: $!";	4388	or error "ERROR: unable to write runtime file: $!";
2612	};
2613	}	4389	};
		4390	}
2614		4391
		4392	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4393	$sig->send;
		4394	}
2615	$WAIT_FOR_TICK->broadcast;	4395	$WAIT_FOR_TICK->broadcast;
2616	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2617		4396
2618	# my $AFTER = Event::time;	4397	$LOAD = ($NOW - $TICK_START) / $TICK;
2619	# warn $AFTER - $NOW;#d#	4398	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2620		4399
2621	# if we are delayed by four ticks or more, skip them all	4400	if (0) {
2622	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4401	if ($NEXT_TICK) {
2623		4402	my $jitter = $TICK_START - $NEXT_TICK;
2624	$TICK_WATCHER->at ($NEXT_TICK);	4403	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
2625	$TICK_WATCHER->start;	4404	debug "jitter $JITTER\n";#d#
		4405	}
2626	},	4406	}
2627	);	4407	}
2628		4408
2629	{	4409	{
2630	BDB::max_poll_time $TICK * 0.1;	4410	# configure BDB
2631	$BDB_POLL_WATCHER = Event->io (	4411	info "initialising database";
2632	reentrant => 0,	4412
2633	fd => BDB::poll_fileno,
2634	poll => 'r',
2635	prio => 0,
2636	data => WF_AUTOCANCEL,
2637	cb => \&BDB::poll_cb,
2638	);
2639	BDB::min_parallel 8;	4413	BDB::min_parallel 16;
2640		4414	BDB::max_poll_reqs $TICK * 0.1;
2641	BDB::set_sync_prepare {	4415	#$AnyEvent::BDB::WATCHER->priority (1);
2642	my $status;
2643	my $current = $Coro::current;
2644	(
2645	sub {
2646	$status = $!;
2647	$current->ready; undef $current;
2648	},
2649	sub {
2650	Coro::schedule while defined $current;
2651	$! = $status;
2652	},
2653	)
2654	};
2655		4416
2656	unless ($DB_ENV) {	4417	unless ($DB_ENV) {
2657	$DB_ENV = BDB::db_env_create;	4418	$DB_ENV = BDB::db_env_create;
		4419	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4420	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4421	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4422	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4423	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2658		4424
2659	cf::sync_job {	4425	cf::sync_job {
2660	eval {	4426	eval {
2661	BDB::db_env_open	4427	BDB::db_env_open
2662	$DB_ENV,	4428	$DB_ENV,
2663	$BDB_ENV_DIR,	4429	$BDBDIR,
2664	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4430	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2665	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4431	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2666	0666;	4432	0666;
2667		4433
2668	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4434	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2669
2670	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2671	$DB_ENV->set_lk_detect;
2672	};	4435	};
2673		4436
2674	cf::cleanup "db_env_open(db): $@" if $@;	4437	cf::cleanup "db_env_open(db): $@" if $@;
2675	};	4438	};
2676	}	4439	}
		4440
		4441	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4442	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4443	};
		4444	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4445	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4446	};
		4447	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4448	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4449	};
		4450
		4451	info "database initialised";
2677	}	4452	}
2678		4453
2679	{	4454	{
		4455	# configure IO::AIO
		4456
		4457	info "initialising aio";
2680	IO::AIO::min_parallel 8;	4458	IO::AIO::min_parallel 8;
2681
2682	undef $Coro::AIO::WATCHER;
2683	IO::AIO::max_poll_time $TICK * 0.1;	4459	IO::AIO::max_poll_time $TICK * 0.1;
2684	$AIO_POLL_WATCHER = Event->io (	4460	undef $AnyEvent::AIO::WATCHER;
2685	reentrant => 0,	4461	info "aio initialised";
2686	data => WF_AUTOCANCEL,
2687	fd => IO::AIO::poll_fileno,
2688	poll => 'r',
2689	prio => 6,
2690	cb => \&IO::AIO::poll_cb,
2691	);
2692	}	4462	}
		4463
		4464	our $_log_backtrace;
		4465	our $_log_backtrace_last;
		4466
		4467	sub _log_backtrace {
		4468	my ($msg, @addr) = @_;
		4469
		4470	$msg =~ s/\n$//;
		4471
		4472	if ($_log_backtrace_last eq $msg) {
		4473	LOG llevInfo, "[ABT] $msg\n";
		4474	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4475	# limit the # of concurrent backtraces
		4476	} elsif ($_log_backtrace < 2) {
		4477	$_log_backtrace_last = $msg;
		4478	++$_log_backtrace;
		4479	my $perl_bt = Carp::longmess $msg;
		4480	async {
		4481	$Coro::current->{desc} = "abt $msg";
		4482
		4483	my @bt = fork_call {
		4484	@addr = map { sprintf "%x", $_ } @addr;
		4485	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4486	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4487	or die "addr2line: $!";
		4488
		4489	my @funcs;
		4490	my @res = <$fh>;
		4491	chomp for @res;
		4492	while (@res) {
		4493	my ($func, $line) = splice @res, 0, 2, ();
		4494	push @funcs, "[$func] $line";
		4495	}
		4496
		4497	@funcs
		4498	};
		4499
		4500	LOG llevInfo, "[ABT] $perl_bt\n";
		4501	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4502	LOG llevInfo, "[ABT] $_\n" for @bt;
		4503	--$_log_backtrace;
		4504	};
		4505	} else {
		4506	LOG llevInfo, "[ABT] $msg\n";
		4507	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4508	}
		4509	}
		4510
		4511	# load additional modules
		4512	require "cf/$_.pm" for @EXTRA_MODULES;
		4513	cf::_connect_to_perl_2;
2693		4514
2694	END { cf::emergency_save }	4515	END { cf::emergency_save }
2695		4516
2696	1	4517	1
2697		4518

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