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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.264 by root, Sun May 6 05:44:48 2007 UTC vs.
Revision 1.587 by root, Wed Oct 31 19:09:47 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Socket;	29	use Socket;
9	use Storable;	30	use EV;
10	use Event;
11	use Opcode;	31	use Opcode;
12	use Safe;	32	use Safe;
13	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
14		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
15	use Coro 3.61 ();	41	use Coro ();
16	use Coro::State;	42	use Coro::State;
17	use Coro::Handle;	43	use Coro::Handle;
		44	use Coro::EV;
18	use Coro::Event;	45	use Coro::AnyEvent;
19	use Coro::Timer;	46	use Coro::Timer;
20	use Coro::Signal;	47	use Coro::Signal;
21	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
22	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
23	use Coro::Storable;	53	use Coro::Storable;
		54	use Coro::Util ();
24		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
25	use BDB ();	58	use BDB ();
26	use Data::Dumper;	59	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	60	use Fcntl;
29	use YAML::Syck ();	61	use YAML::XS ();
30	use IO::AIO 2.32 ();	62	use IO::AIO ();
31	use Time::HiRes;	63	use Time::HiRes;
32	use Compress::LZF;	64	use Compress::LZF;
		65	use Digest::MD5 ();
		66
		67	AnyEvent::detect;
33		68
34	# configure various modules to our taste	69	# configure various modules to our taste
35	#	70	#
36	$Storable::canonical = 1; # reduce rsync transfers	71	$Storable::canonical = 1; # reduce rsync transfers
37	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";
38	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
39		79
40	$Event::Eval = 1; # no idea why this is required, but it is	80	# strictly for debugging
41		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		82
47	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;
48		86
49	our %COMMAND = ();	87	our %COMMAND = ();
50	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
51		89
52	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	93	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	94	our %EXT_MAP = (); # pluggable maps
56		95
57	our $RELOAD; # number of reloads so far	96	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	97	our @EVENT;
		98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
59		100
60	our $CONFDIR = confdir;	101	our $CONFDIR = confdir;
		102
61	our $DATADIR = datadir;	103	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	104	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	105	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	106	our $MAPDIR = "$DATADIR/" . mapdir;
		107
65	our $LOCALDIR = localdir;	108	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	109	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	110	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	111	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	112	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	113	our $BDBDIR = "$LOCALDIR/db";
		114	our $PIDFILE = "$LOCALDIR/pid";
		115	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		116
		117	#our %RESOURCE; # unused
		118
		119	our $OUTPUT_RATE_MIN = 3000;
		120	our $OUTPUT_RATE_MAX = 1000000;
		121
		122	our $MAX_LINKS = 32; # how many chained exits to follow
		123	our $VERBOSE_IO = 1;
71		124
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	125	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	127	our $NEXT_TICK;
		128	our $USE_FSYNC = 1; # use fsync to write maps - default on
		129
		130	our $BDB_DEADLOCK_WATCHER;
		131	our $BDB_CHECKPOINT_WATCHER;
		132	our $BDB_TRICKLE_WATCHER;
		133	our $DB_ENV;
		134
		135	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		136
		137	our %CFG;
		138	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		139
		140	our $UPTIME; $UPTIME ||= time;
		141	our $RUNTIME = 0;
		142	our $SERVER_TICK = 0;
77	our $NOW;	143	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		144
80	our $BDB_POLL_WATCHER;	145	our (%PLAYER, %PLAYER_LOADING); # all users
81	our $DB_ENV;	146	our (%MAP, %MAP_LOADING ); # all maps
82
83	our %CFG;
84
85	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;
87
88	our %PLAYER; # all users
89	our %MAP; # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	147	our $LINK_MAP; # the special {link} map, which is always available
91		148
92	# used to convert map paths into valid unix filenames by replacing / by ∕	149	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		151
		152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		153	our $LOADAVG; # same thing, but with alpha-smoothing
		154	our $JITTER; # average jitter
		155	our $TICK_START; # for load detecting purposes
		156
		157	our @POST_INIT;
		158
		159	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		160	our $REALLY_UNLOOP; # never set to true, please :)
		161
		162	our $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
		164
95	binmode STDOUT;	165	binmode STDOUT;
96	binmode STDERR;	166	binmode STDERR;
97		167
98	# read virtual server time, if available	168	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	170	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
103	}	173	}
		174
		175	eval "sub TICK() { $TICK } 1" or die;
104		176
105	mkdir $_	177	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		179
108	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
109		181
110	sub cf::map::normalise;	182	sub cf::map::normalise;
111		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
112	#############################################################################	188	#############################################################################
113		189
		190	%REFLECT = ();
		191	for (@REFLECT) {
		192	my $reflect = JSON::XS::decode_json $_;
		193	$REFLECT{$reflect->{class}} = $reflect;
		194	}
		195
		196	# this is decidedly evil
		197	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		198
		199	#############################################################################
		200
114	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
115		202
116	=over 4	203	=over 4
117		204
118	=item $cf::UPTIME	205	=item $cf::UPTIME
119		206
120	The timestamp of the server start (so not actually an uptime).	207	The timestamp of the server start (so not actually an "uptime").
		208
		209	=item $cf::SERVER_TICK
		210
		211	An unsigned integer that starts at zero when the server is started and is
		212	incremented on every tick.
		213
		214	=item $cf::NOW
		215
		216	The (real) time of the last (current) server tick - updated before and
		217	after tick processing, so this is useful only as a rough "what time is it
		218	now" estimate.
		219
		220	=item $cf::TICK
		221
		222	The interval between each server tick, in seconds.
121		223
122	=item $cf::RUNTIME	224	=item $cf::RUNTIME
123		225
124	The time this server has run, starts at 0 and is increased by $cf::TICK on	226	The time this server has run, starts at 0 and is increased by $cf::TICK on
125	every server tick.	227	every server tick.
…		…
131	Various directories - "/etc", read-only install directory, perl-library	233	Various directories - "/etc", read-only install directory, perl-library
132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",	234	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
133	unique-items directory, player file directory, random maps directory and	235	unique-items directory, player file directory, random maps directory and
134	database environment.	236	database environment.
135		237
		238	=item $cf::LOADAVG
		239
		240	The current CPU load on the server (alpha-smoothed), as a value between 0
		241	(none) and 1 (overloaded), indicating how much time is spent on processing
		242	objects per tick. Healthy values are < 0.5.
		243
136	=item $cf::NOW	244	=item $cf::LOAD
137		245
138	The time of the last (current) server tick.	246	The raw value load value from the last tick.
139
140	=item $cf::TICK
141
142	The interval between server ticks, in seconds.
143		247
144	=item %cf::CFG	248	=item %cf::CFG
145		249
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	251	from wherever your confdir points to.
148		252
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	253	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		254
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	256	returns directly I<after> the tick processing (and consequently, can only wake one thread
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
		287
155	=back	288	=back
156		289
157	=cut	290	=cut
158		291
159	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
160	*CORE::GLOBAL::warn = sub {	293	sub warn (@) { LOG llevWarn , join "", @_ }
		294	sub info (@) { LOG llevInfo , join "", @_ }
		295	sub debug(@) { LOG llevDebug, join "", @_ }
		296	sub trace(@) { LOG llevTrace, join "", @_ }
		297
		298	$Coro::State::WARNHOOK = sub {
161	my $msg = join "", @_;	299	my $msg = join "", @_;
162		300
163	$msg .= "\n"	301	$msg .= "\n"
164	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
165		303
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		305
168	utf8::encode $msg;
169	LOG llevError, $msg;	306	LOG llevWarn, $msg;
170	};	307	};
171	}	308
		309	$Coro::State::DIEHOOK = sub {
		310	return unless $^S eq 0; # "eq", not "=="
		311
		312	error Carp::longmess $_[0];
		313
		314	if (in_main) {#d#
		315	error "DIEHOOK called in main context, Coro bug?\n";#d#
		316	return;#d#
		317	}#d#
		318
		319	# kill coroutine otherwise
		320	Coro::terminate
		321	};
172		322
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	327	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		328	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	329	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		330
180	# we bless all objects into (empty) derived classes to force a method lookup	331	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	332	# within the Safe compartment.
182	for my $pkg (qw(	333	for my $pkg (qw(
183	cf::global cf::attachable	334	cf::global cf::attachable
184	cf::object cf::object::player	335	cf::object cf::object::player
185	cf::client cf::player	336	cf::client cf::player
186	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
187	cf::map cf::party cf::region	339	cf::party cf::region
188	)) {	340	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	342	}
192		343
193	$Event::DIED = sub {	344	$EV::DIED = sub {
194	warn "error in event callback: @_";	345	warn "error in event callback: $@";
195	};	346	};
		347
		348	#############################################################################
		349
		350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
196		354
197	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
198		356
199	=over 4	357	=over 4
200		358
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	378	$d
221	} || "[unable to dump $_[0]: '$@']";	379	} || "[unable to dump $_[0]: '$@']";
222	}	380	}
223		381
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	382	=item $scalar = cf::load_file $path
225		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($path, $data, $sync) = @_;
		405
		406	my $lock = cf::lock_acquire ("replace_file:$path");
		407
		408	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		409	or return;
		410
		411	$data = $data->() if ref $data;
		412
		413	length $data == aio_write $fh, 0, (length $data), $data, 0
		414	or return;
		415
		416	!$sync
		417	or !aio_fsync $fh
		418	or return;
		419
		420	aio_close $fh
		421	and return;
		422
		423	aio_rename "$path~", $path
		424	and return;
		425
		426	if ($sync) {
		427	$path =~ s%/[^/]*$%%;
		428	aio_pathsync $path;
		429	}
		430
		431	1
		432	}
		433
226	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
227		435
228	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
229		437
230	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
231		439
232	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
233		441
		442	=cut
		443
		444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		445
		446	sub encode_json($) { $json_coder->encode ($_[0]) }
		447	sub decode_json($) { $json_coder->decode ($_[0]) }
		448
		449	=item $ref = cf::decode_storable $scalar
		450
		451	Same as Coro::Storable::thaw, so blocks.
		452
		453	=cut
		454
		455	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		456
		457	=item $ref = cf::decode_yaml $scalar
		458
		459	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		460
		461	=cut
		462
		463	sub decode_yaml($) {
		464	fork_call { YAML::XS::Load $_[0] } @_
		465	}
		466
		467	=item $scalar = cf::unlzf $scalar
		468
		469	Same as Compress::LZF::compress, but takes server ticks into account, so
		470	blocks.
		471
		472	=cut
		473
		474	sub unlzf($) {
		475	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		476	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		477	Compress::LZF::decompress $_[0]
		478	}
		479
		480	=item cf::post_init { BLOCK }
		481
		482	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		483	but I<before> the server starts ticking again.
		484
		485	The codeblock will have a single boolean argument to indicate whether this
		486	is a reload or not.
		487
		488	=cut
		489
		490	sub post_init(&) {
		491	push @POST_INIT, shift;
		492	}
		493
		494	sub _post_init {
		495	trace "running post_init jobs";
		496
		497	# run them in parallel...
		498
		499	my @join;
		500
		501	while () {
		502	push @join, map &Coro::async ($_, 0), @POST_INIT;
		503	@POST_INIT = ();
		504
		505	@join or last;
		506
		507	(pop @join)->join;
		508	}
		509	}
		510
234	=item cf::lock_wait $string	511	=item cf::lock_wait $string
235		512
236	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
237		514
238	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
239		516
240	Wait until the given lock is available and then acquires it and returns	517	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	518	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
243	returned.	520	returned.
244		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
245	Lock names should begin with a unique identifier (for example, cf::map::find	525	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
247		527
248	=item $locked = cf::lock_active $string	528	=item $locked = cf::lock_active $string
249		529
250	Return true if the lock is currently active, i.e. somebody has locked it.	530	Return true if the lock is currently active, i.e. somebody has locked it.
251		531
252	=cut	532	=cut
253		533
254	our %LOCK;	534	our $LOCKS = new Coro::SemaphoreSet;
255		535
256	sub lock_wait($) {	536	sub lock_wait($) {
257	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	538	}
265		539
266	sub lock_acquire($) {	540	sub lock_acquire($) {
267	my ($key) = @_;	541	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	542	}
279		543
280	sub lock_active($) {	544	sub lock_active($) {
281	my ($key) = @_;	545	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	546	}
285		547
286	sub freeze_mainloop {	548	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
288		550
289	my $guard = Coro::guard {	551	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	552	}
		553
		554	=item cf::periodic $interval, $cb
		555
		556	Like EV::periodic, but randomly selects a starting point so that the actions
		557	get spread over time.
		558
		559	=cut
		560
		561	sub periodic($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
291	};	621	}
292	$TICK_WATCHER->stop;	622	};
293	$guard	623
		624	sub get_slot($;$$) {
		625	return if tick_inhibit || $Coro::current == $Coro::main;
		626
		627	my ($time, $pri, $name) = @_;
		628
		629	$time = clamp $time, 0.01, $TICK * .6;
		630
		631	my $sig = new Coro::Signal;
		632
		633	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		634	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		635	$SLOT_QUEUE->ready;
		636	$sig->wait;
294	}	637	}
295		638
296	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
297		640
298	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		646
304	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
305		648
306	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
307		650
308	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
311		655
312	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
315	fast or be very important.	659	fast or be very important.
…		…
317	=cut	661	=cut
318		662
319	sub sync_job(&) {	663	sub sync_job(&) {
320	my ($job) = @_;	664	my ($job) = @_;
321		665
322	if ($Coro::current == $Coro::main) {	666	if (in_main) {
		667	my $time = AE::time;
		668
323	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
325		671
326	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	673
328	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
329		675
330	my $busy = 1;	676	my $busy = 1;
331	my @res;	677	my @res;
332		678
333	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	681	@res = eval { $job->() };
335	warn $@ if $@;	682	error $@ if $@;
336	undef $busy;	683	undef $busy;
337	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
338		685
339	while ($busy) {	686	while ($busy) {
340	Coro::cede or Event::one_event;	687	if (Coro::nready) {
		688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
341	}	691	}
		692	}
		693
		694	my $time = AE::time - $time;
		695
		696	$TICK_START += $time; # do not account sync jobs to server load
342		697
343	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
344	} else {	699	} else {
345	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
346		701
…		…
366	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
367		722
368	$coro	723	$coro
369	}	724	}
370		725
371	sub write_runtime {	726	=item fork_call { }, @args
372	my $runtime = "$LOCALDIR/runtime";
373		727
374	# first touch the runtime file to show we are still running:	728	Executes the given code block with the given arguments in a seperate
375	# the fsync below can take a very very long time.	729	process, returning the results. Everything must be serialisable with
		730	Coro::Storable. May, of course, block. Note that the executed sub may
		731	never block itself or use any form of event handling.
376		732
377	warn "touching runtime...\n";#d#	733	=cut
378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	734
379	utime undef, undef, $fh;	735	sub post_fork {
		736	reset_signals;
		737	}
		738
		739	sub fork_call(&@) {
		740	my ($cb, @args) = @_;
		741
		742	# we seemingly have to make a local copy of the whole thing,
		743	# otherwise perl prematurely frees the stuff :/
		744	# TODO: investigate and fix (likely this will be rather laborious)
		745
		746	my @res = Coro::Util::fork_eval {
		747	cf::post_fork;
		748	&$cb
		749	} @args;
		750
		751	wantarray ? @res : $res[-1]
		752	}
		753
		754	sub objinfo {
		755	(
		756	"counter value" => cf::object::object_count,
		757	"objects created" => cf::object::create_count,
		758	"objects destroyed" => cf::object::destroy_count,
		759	"freelist size" => cf::object::free_count,
		760	"allocated objects" => cf::object::objects_size,
		761	"active objects" => cf::object::actives_size,
		762	)
		763	}
		764
		765	=item $coin = coin_from_name $name
		766
		767	=cut
		768
		769	our %coin_alias = (
		770	"silver" => "silvercoin",
		771	"silvercoin" => "silvercoin",
		772	"silvercoins" => "silvercoin",
		773	"gold" => "goldcoin",
		774	"goldcoin" => "goldcoin",
		775	"goldcoins" => "goldcoin",
		776	"platinum" => "platinacoin",
		777	"platinumcoin" => "platinacoin",
		778	"platinumcoins" => "platinacoin",
		779	"platina" => "platinacoin",
		780	"platinacoin" => "platinacoin",
		781	"platinacoins" => "platinacoin",
		782	"royalty" => "royalty",
		783	"royalties" => "royalty",
		784	);
		785
		786	sub coin_from_name($) {
		787	$coin_alias{$_[0]}
		788	? cf::arch::find $coin_alias{$_[0]}
		789	: undef
		790	}
		791
		792	=item $value = cf::db_get $family => $key
		793
		794	Returns a single value from the environment database.
		795
		796	=item cf::db_put $family => $key => $value
		797
		798	Stores the given C<$value> in the family. It can currently store binary
		799	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		800
		801	=item $db = cf::db_table "name"
		802
		803	Create and/or open a new database table. The string must not be "db" and must be unique
		804	within each server.
		805
		806	=cut
		807
		808	sub db_table($) {
		809	cf::error "db_get called from main context"
		810	if $Coro::current == $Coro::main;
		811
		812	my ($name) = @_;
		813	my $db = BDB::db_create $DB_ENV;
		814
		815	eval {
		816	$db->set_flags (BDB::CHKSUM);
		817
		818	utf8::encode $name;
		819	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		820	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		821	cf::cleanup "db_open(db): $!" if $!;
380	}	822	};
		823	cf::cleanup "db_open(db): $@" if $@;
381		824
382	my $guard = cf::lock_acquire "write_runtime";	825	$db
		826	}
383		827
384	warn "starting to write runtime...\n";#d#	828	our $DB;
385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
386	or return;
387		829
388	my $value = $cf::RUNTIME + 90 + 10;	830	sub db_init {
389	# 10 is the runtime save interval, for a monotonic clock	831	$DB ||= db_table "db";
390	# 60 allows for the watchdog to kill the server.	832	}
391		833
392	(aio_write $fh, 0, (length $value), $value, 0) <= 0	834	sub db_get($$) {
393	and return;	835	my $key = "$_[0]/$_[1]";
394		836
395	# always fsync - this file is important	837	cf::error "db_get called from main context"
396	aio_fsync $fh	838	if $Coro::current == $Coro::main;
397	and return;
398		839
399	# touch it again to show we are up-to-date	840	BDB::db_get $DB, undef, $key, my $data;
400	utime undef, undef, $fh;
401		841
402	close $fh	842	$! ? ()
403	or return;	843	: $data
		844	}
404		845
405	aio_rename "$runtime~", $runtime	846	sub db_put($$$) {
406	and return;	847	BDB::dbreq_pri 4;
		848	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		849	}
407		850
408	warn "... done writing runtime.\n";#d#	851	=item cf::cache $id => [$paths...], $processversion => $process
409		852
		853	Generic caching function that returns the value of the resource $id,
		854	caching and regenerating as required.
		855
		856	This function can block.
		857
		858	=cut
		859
		860	sub cache {
		861	my ($id, $src, $processversion, $process) = @_;
		862
		863	my $meta =
		864	join "\x00",
		865	$processversion,
		866	map {
		867	aio_stat $_
		868	and Carp::croak "$_: $!";
		869
		870	($_, (stat _)[7,9])
		871	} @$src;
		872
		873	my $dbmeta = db_get cache => "$id/meta";
		874	if ($dbmeta ne $meta) {
		875	# changed, we may need to process
		876
		877	my @data;
		878	my $md5;
		879
		880	for (0 .. $#$src) {
		881	$data[$_] = load_file $src->[$_];
		882	}
		883
		884	# if processing is expensive, check
		885	# checksum first
		886	if (1) {
		887	$md5 =
		888	join "\x00",
		889	$processversion,
		890	map {
		891	cf::cede_to_tick;
		892	($src->[$_], Digest::MD5::md5_hex $data[$_])
		893	} 0.. $#$src;
		894
		895
		896	my $dbmd5 = db_get cache => "$id/md5";
		897	if ($dbmd5 eq $md5) {
		898	db_put cache => "$id/meta", $meta;
		899
		900	return db_get cache => "$id/data";
		901	}
		902	}
		903
		904	my $t1 = Time::HiRes::time;
		905	my $data = $process->(\@data);
		906	my $t2 = Time::HiRes::time;
		907
		908	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		909
		910	db_put cache => "$id/data", $data;
		911	db_put cache => "$id/md5" , $md5;
		912	db_put cache => "$id/meta", $meta;
		913
		914	return $data;
410	1	915	}
		916
		917	db_get cache => "$id/data"
411	}	918	}
412		919
413	=item cf::datalog type => key => value, ...	920	=item cf::datalog type => key => value, ...
414		921
415	Log a datalog packet of the given type with the given key-value pairs.	922	Log a datalog packet of the given type with the given key-value pairs.
416		923
417	=cut	924	=cut
418		925
419	sub datalog($@) {	926	sub datalog($@) {
420	my ($type, %kv) = @_;	927	my ($type, %kv) = @_;
421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
422	}	929	}
423		930
424	=back	931	=back
425		932
426	=cut	933	=cut
427		934
428	#############################################################################	935	#############################################################################
429		936
430	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
431		938
432	Many objects in crossfire are so-called attachable objects. That means you can	939	Many objects in deliantra are so-called attachable objects. That means you can
433	attach callbacks/event handlers (a collection of which is called an "attachment")	940	attach callbacks/event handlers (a collection of which is called an "attachment")
434	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
435		942
436	In the following description, CLASS can be any of C<global>, C<object>	943	In the following description, CLASS can be any of C<global>, C<object>
437	C<player>, C<client> or C<map> (i.e. the attachable objects in	944	C<player>, C<client> or C<map> (i.e. the attachable objects in
438	crossfire+).	945	Deliantra).
439		946
440	=over 4	947	=over 4
441		948
442	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
443		950
…		…
487	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
488		995
489	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
490	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
491		998
492	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
493	that are attached at load/instantiate time, thus the need for a name.	1000	that are attached at load/instantiate time, thus the need for a name.
494		1001
495	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
496		1003
497	=over 4	1004	=over 4
…		…
606	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
607		1114
608	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
609	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
610	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
611	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
612		1119
613	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
614	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
615		1122
616	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
621		1128
622	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
623	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
624		1131
625	} elsif (ref $type) {	1132	} elsif (ref $type) {
626	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
627		1134
628	} else {	1135	} else {
629	shift @arg;	1136	shift @arg;
630	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
631	}	1138	}
632	}	1139	}
633	}	1140	}
634		1141
635	sub _object_attach {	1142	sub _object_attach {
…		…
645	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
646	}	1153	}
647		1154
648	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
649	} else {	1156	} else {
650	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
651	}	1158	}
652		1159
653	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
654	}	1161	}
655		1162
…		…
657	if (ref $_[0]) {	1164	if (ref $_[0]) {
658	_object_attach @_;	1165	_object_attach @_;
659	} else {	1166	} else {
660	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
661	}	1168	}
		1169	_recalc_want;
662	};	1170	};
663		1171
664	# all those should be optimised	1172	# all those should be optimised
665	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
666	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
669	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
670	reattach ($obj);	1178	reattach ($obj);
671	} else {	1179	} else {
672	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
673	}	1181	}
		1182	_recalc_want;
674	};	1183	};
675		1184
676	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
677	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
678		1187
…		…
693	";	1202	";
694	die if $@;	1203	die if $@;
695	}	1204	}
696		1205
697	our $override;	1206	our $override;
698	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1207	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
699		1208
700	sub override {	1209	sub override {
701	$override = 1;	1210	$override = 1;
702	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
703	}	1212	}
704		1213
705	sub do_invoke {	1214	sub do_invoke {
706	my $event = shift;	1215	my $event = shift;
707	my $callbacks = shift;	1216	my $callbacks = shift;
708		1217
709	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
710		1219
711	local $override;	1220	local $override;
712		1221
713	for (@$callbacks) {	1222	for (@$callbacks) {
714	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
715		1224
716	if ($@) {	1225	if ($@) {
717	warn "$@";
718	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
719	override;	1227	override;
720	}	1228	}
721		1229
722	return 1 if $override;	1230	return 1 if $override;
723	}	1231	}
724		1232
725	0	1233	0
726	}	1234	}
727		1235
728	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
729		1237
730	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
731		1239
732	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
733		1241
734	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1242	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
735	removed in future versions), and there is no public API to access override	1243	removed in future versions), and there is no public API to access override
736	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
737		1245
738	=back	1246	=back
739		1247
740	=cut	1248	=cut
741		1249
742	#############################################################################	1250	#############################################################################
743	# object support	1251	# object support
		1252
		1253	sub _object_equal($$);
		1254	sub _object_equal($$) {
		1255	my ($a, $b) = @_;
		1256
		1257	return 0 unless (ref $a) eq (ref $b);
		1258
		1259	if ("HASH" eq ref $a) {
		1260	my @ka = keys %$a;
		1261	my @kb = keys %$b;
		1262
		1263	return 0 if @ka != @kb;
		1264
		1265	for (0 .. $#ka) {
		1266	return 0 unless $ka[$_] eq $kb[$_];
		1267	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1268	}
		1269
		1270	} elsif ("ARRAY" eq ref $a) {
		1271
		1272	return 0 if @$a != @$b;
		1273
		1274	for (0 .. $#$a) {
		1275	return 0 unless _object_equal $a->[$_], $b->[$_];
		1276	}
		1277
		1278	} elsif ($a ne $b) {
		1279	return 0;
		1280	}
		1281
		1282	1
		1283	}
		1284
		1285	our $SLOW_MERGES;#d#
		1286	sub _can_merge {
		1287	my ($ob1, $ob2) = @_;
		1288
		1289	++$SLOW_MERGES;#d#
		1290
		1291	# we do the slow way here
		1292	return _object_equal $ob1, $ob2
		1293	}
744		1294
745	sub reattach {	1295	sub reattach {
746	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
747	my ($obj) = @_;	1297	my ($obj) = @_;
748		1298
		1299	# no longer needed after getting rid of delete_package?
749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1300	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
750		1301
751	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
752		1303
753	@$registry = ();	1304	@$registry = ();
754		1305
…		…
759	for (@$attach) {	1310	for (@$attach) {
760	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
761	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
762	}	1313	}
763	} else {	1314	} else {
764	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
765	}	1316	}
766	}	1317	}
767	}	1318	}
768		1319
769	cf::attachable->attach (	1320	cf::attachable->attach (
770	prio => -1000000,	1321	prio => -1000000,
771	on_instantiate => sub {	1322	on_instantiate => sub {
772	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
773		1324
774	$data = from_json $data;	1325	$data = decode_json $data;
775		1326
776	for (@$data) {	1327	for (@$data) {
777	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
778		1329
779	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
795	sub object_freezer_save {	1346	sub object_freezer_save {
796	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
797		1348
798	sync_job {	1349	sync_job {
799	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
800	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
801	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
802		1355
803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
804	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
806	aio_fsync $fh if $cf::USE_FSYNC;	1359	if ($cf::USE_FSYNC) {
		1360	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;
		1361	aio_fsync $fh;
		1362	}
807	close $fh;	1363	aio_close $fh;
808		1364
809	if (@$objs) {	1365	if (@$objs) {
810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1366	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
811	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
812	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
813	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
814	aio_fsync $fh if $cf::USE_FSYNC;	1370	if ($cf::USE_FSYNC) {
		1371	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;
		1372	aio_fsync $fh;
		1373	}
815	close $fh;	1374	aio_close $fh;
816	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
817	}	1376	}
818	} else {	1377	} else {
819	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
820	}	1379	}
821		1380
822	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
823	} else {	1385	} else {
824	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
825	}	1387	}
826	} else {	1388	} else {
827	aio_unlink $filename;	1389	aio_unlink $filename;
828	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
829	}	1391	}
830	}	1392	};
831	}	1393	}
832		1394
833	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
834	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
835		1397
…		…
847	or return;	1409	or return;
848		1410
849	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
850	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
851	or return;	1413	or return;
		1414
852	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
853	}	1417	}
854		1418
		1419	utf8::decode (my $decname = $filename);
855	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
856	$filename, length $data, scalar @{$av || []};#d#	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
857	return ($data, $av);	1424	($data, $av)
858	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
859		1432
860	#############################################################################	1433	#############################################################################
861	# command handling &c	1434	# command handling &c
862		1435
863	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
876	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
877	}	1450	}
878		1451
879	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
880		1453
881	Register a callbackf ro execution when the client sends an extcmd packet.	1454	Register a callback for execution when the client sends an (synchronous)
		1455	extcmd packet. Ext commands will be processed in the order they are
		1456	received by the server, like other user commands. The first argument is
		1457	the logged-in player. Ext commands can only be processed after a player
		1458	has logged in successfully.
882		1459
883	If the callback returns something, it is sent back as if reply was being	1460	If the callback returns something, it is sent back as if reply was being
884	called.	1461	called.
885		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
886	=cut	1474	=cut
887		1475
888	sub register_extcmd {	1476	sub register_extcmd {
889	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
890		1478
891	$EXTCMD{$name} = $cb;	1479	$EXTCMD{$name} = $cb;
892	}	1480	}
893		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
		1489
894	cf::player->attach (	1490	cf::player->attach (
895	on_command => sub {	1491	on_unknown_command => sub {
896	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
897		1493
898	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
899	or return;	1495	or return;
900		1496
…		…
905	cf::override;	1501	cf::override;
906	},	1502	},
907	on_extcmd => sub {	1503	on_extcmd => sub {
908	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
909		1505
910	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
911		1507
912	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
914	if (my %reply = $cb->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
915	$pl->ext_reply ($msg->{msgid}, %reply);
916	}
917	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
918	} else {	1520	} else {
919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
920	}	1522	}
921		1523
922	cf::override;	1524	cf::override;
923	},	1525	},
924	);	1526	);
925		1527
		1528	# "readahead" all extensions
926	sub load_extension {	1529	sub cache_extensions {
927	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
928		1531
929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
930	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
931	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
932	$pkg =~ s/[^[:word:]]/_/g;
933	$pkg = "ext::$pkg";
934
935	warn "... loading '$path' into '$pkg'\n";
936
937	open my $fh, "<:utf8", $path
938	or die "$path: $!";
939
940	my $source =
941	"package $pkg; use strict; use utf8;\n"
942	. "#line 1 \"$path\"\n{\n"
943	. (do { local $/; <$fh> })
944	. "\n};\n1";
945
946	unless (eval $source) {
947	my $msg = $@ ? "$path: $@\n"
948	: "extension disabled.\n";
949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
950	warn $@;
951	warn "mandatory extension failed to load, exiting.\n";
952	exit 1;
953	}	1535	}
954	die $@;
955	}	1536	};
956		1537
957	push @EXTS, $pkg;	1538	$grp
		1539	}
		1540
		1541	sub _ext_cfg_reg($$$$) {
		1542	my ($rvar, $varname, $cfgname, $default) = @_;
		1543
		1544	$cfgname = lc $varname
		1545	unless length $cfgname;
		1546
		1547	$EXT_CFG{$cfgname} = [$rvar, $default];
		1548
		1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
958	}	1550	}
959		1551
960	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
961	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
962	next unless -r $ext;	1561	next unless -r $path;
963	eval {	1562
964	load_extension $ext;	1563	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1564	my $base = $1;
		1565	my $pkg = $1;
		1566	$pkg =~ s/[^[:word:]]/_/g;
		1567	$pkg = "ext::$pkg";
		1568
		1569	open my $fh, "<:utf8", $path
		1570	or die "$path: $!";
		1571
		1572	my $source = do { local $/; <$fh> };
		1573
		1574	my %ext = (
		1575	path => $path,
		1576	base => $base,
		1577	pkg => $pkg,
		1578	);
		1579
		1580	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1581	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1582
		1583	$ext{source} =
		1584	"package $pkg; use common::sense;\n"
		1585	. "#line 1 \"$path\"\n{\n"
		1586	. $source
		1587	. "\n};\n1";
		1588
		1589	$todo{$base} = \%ext;
		1590	}
		1591
		1592	my $pass = 0;
		1593	my %done;
		1594	while (%todo) {
		1595	my $progress;
		1596
		1597	++$pass;
		1598
		1599	ext:
		1600	while (my ($k, $v) = each %todo) {
		1601	for (split /,\s*/, $v->{meta}{depends}) {
		1602	next ext
		1603	unless exists $done{$_};
		1604	}
		1605
		1606	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1607
		1608	my $source = $v->{source};
		1609
		1610	# support "CONF varname :confname = default" pseudo-statements
		1611	$source =~ s{
		1612	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1613	}{
		1614	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1615	}gmxe;
		1616
		1617	my $active = eval $source;
		1618
		1619	if (length $@) {
		1620	error "$v->{path}: $@\n";
		1621
		1622	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1623	if exists $v->{meta}{mandatory};
		1624
		1625	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1626	delete $todo{$k};
		1627	} else {
		1628	$done{$k} = delete $todo{$k};
		1629	push @EXTS, $v->{pkg};
		1630	$progress = 1;
		1631
		1632	info "$v->{base}: extension inactive.\n"
		1633	unless $active;
		1634	}
965	1	1635	}
966	} or warn "$ext not loaded: $@";	1636
		1637	unless ($progress) {
		1638	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1639
		1640	while (my ($k, $v) = each %todo) {
		1641	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1642	if exists $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
		1647	}
967	}	1648	};
968	}	1649	}
969		1650
970	#############################################################################	1651	#############################################################################
971		1652
		1653	=back
		1654
972	=head2 CORE EXTENSIONS	1655	=head2 CORE EXTENSIONS
973		1656
974	Functions and methods that extend core crossfire objects.	1657	Functions and methods that extend core deliantra objects.
975		1658
976	=cut	1659	=cut
977		1660
978	package cf::player;	1661	package cf::player;
979		1662
980	use Coro::AIO;	1663	use Coro::AIO;
981		1664
982	=head3 cf::player	1665	=head3 cf::player
983		1666
984	=over 4	1667	=over 4
		1668
		1669	=item cf::player::num_playing
		1670
		1671	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1672
		1673	=cut
		1674
		1675	sub num_playing {
		1676	scalar grep
		1677	$_->ob->map
		1678	&& !$_->hidden
		1679	&& !$_->ob->flag (cf::FLAG_WIZ),
		1680	cf::player::list
		1681	}
985		1682
986	=item cf::player::find $login	1683	=item cf::player::find $login
987		1684
988	Returns the given player object, loading it if necessary (might block).	1685	Returns the given player object, loading it if necessary (might block).
989		1686
…		…
1008		1705
1009	sub exists($) {	1706	sub exists($) {
1010	my ($login) = @_;	1707	my ($login) = @_;
1011		1708
1012	$cf::PLAYER{$login}	1709	$cf::PLAYER{$login}
1013	or cf::sync_job { !aio_stat path $login }	1710	or !aio_stat path $login
1014	}	1711	}
1015		1712
1016	sub find($) {	1713	sub find($) {
1017	return $cf::PLAYER{$_[0]} || do {	1714	return $cf::PLAYER{$_[0]} || do {
1018	my $login = $_[0];	1715	my $login = $_[0];
…		…
1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1028	aio_unlink +(playerdir $login) . "/$login.pl";	1725	aio_unlink +(playerdir $login) . "/$login.pl";
1029		1726
1030	my $pl = load_pl path $login	1727	my $f = new_from_file cf::object::thawer path $login
1031	or return;	1728	or return;
		1729
		1730	my $pl = cf::player::load_pl $f
		1731	or return;
		1732
		1733	local $cf::PLAYER_LOADING{$login} = $pl;
		1734	$f->resolve_delayed_derefs;
1032	$cf::PLAYER{$login} = $pl	1735	$cf::PLAYER{$login} = $pl
1033	}	1736	}
1034	}	1737	}
1035	}	1738	}
		1739
		1740	cf::player->attach (
		1741	on_load => sub {
		1742	my ($pl, $path) = @_;
		1743
		1744	# restore slots saved in save, below
		1745	my $slots = delete $pl->{_slots};
		1746
		1747	$pl->ob->current_weapon ($slots->[0]);
		1748	$pl->combat_ob ($slots->[1]);
		1749	$pl->ranged_ob ($slots->[2]);
		1750	},
		1751	);
1036		1752
1037	sub save($) {	1753	sub save($) {
1038	my ($pl) = @_;	1754	my ($pl) = @_;
1039		1755
1040	return if $pl->{deny_save};	1756	return if $pl->{deny_save};
…		…
1045	return if $pl->{deny_save};	1761	return if $pl->{deny_save};
1046		1762
1047	aio_mkdir playerdir $pl, 0770;	1763	aio_mkdir playerdir $pl, 0770;
1048	$pl->{last_save} = $cf::RUNTIME;	1764	$pl->{last_save} = $cf::RUNTIME;
1049		1765
		1766	cf::get_slot 0.01;
		1767
		1768	# save slots, to be restored later
		1769	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1770
1050	$pl->save_pl ($path);	1771	$pl->save_pl ($path);
1051	Coro::cede;	1772	cf::cede_to_tick;
1052	}	1773	}
1053		1774
1054	sub new($) {	1775	sub new($) {
1055	my ($login) = @_;	1776	my ($login) = @_;
1056		1777
…		…
1062	$cf::PLAYER{$login} = $self;	1783	$cf::PLAYER{$login} = $self;
1063		1784
1064	$self	1785	$self
1065	}	1786	}
1066		1787
		1788	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1789
		1790	=cut
		1791
		1792	sub send_msg {
		1793	my $ns = shift->ns
		1794	or return;
		1795	$ns->send_msg (@_);
		1796	}
		1797
1067	=item $pl->quit_character	1798	=item $pl->quit_character
1068		1799
1069	Nukes the player without looking back. If logged in, the connection will	1800	Nukes the player without looking back. If logged in, the connection will
1070	be destroyed. May block for a long time.	1801	be destroyed. May block for a long time.
1071		1802
…		…
1075	my ($pl) = @_;	1806	my ($pl) = @_;
1076		1807
1077	my $name = $pl->ob->name;	1808	my $name = $pl->ob->name;
1078		1809
1079	$pl->{deny_save} = 1;	1810	$pl->{deny_save} = 1;
1080	$pl->password ("*"); # this should lock out the player until we nuked the dir	1811	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1081		1812
1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1083	$pl->deactivate;	1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
1085	$pl->ns->destroy if $pl->ns;	1820	$pl->ns->destroy if $pl->ns;
1086		1821
1087	my $path = playerdir $pl;	1822	my $path = playerdir $pl;
1088	my $temp = "$path~$cf::RUNTIME~deleting~";	1823	my $temp = "$path~$cf::RUNTIME~deleting~";
1089	aio_rename $path, $temp;	1824	aio_rename $path, $temp;
…		…
1124	or return [];	1859	or return [];
1125		1860
1126	my @logins;	1861	my @logins;
1127		1862
1128	for my $login (@$dirs) {	1863	for my $login (@$dirs) {
		1864	my $path = path $login;
		1865
		1866	# a .pst is a dead give-away for a valid player
		1867	# if no pst file found, open and chekc for blocked users
		1868	if (aio_stat "$path.pst") {
1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1130	aio_read $fh, 0, 512, my $buf, 0 or next;	1870	aio_read $fh, 0, 512, my $buf, 0 or next;
1131	$buf !~ /^password -------------$/m or next; # official not-valid tag	1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
1132		1873
1133	utf8::decode $login;	1874	utf8::decode $login;
1134	push @logins, $login;	1875	push @logins, $login;
1135	}	1876	}
1136		1877
1137	\@logins	1878	\@logins
1138	}	1879	}
1139		1880
1140	=item $player->maps	1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
1141		1884
1142	Returns an arrayref of map paths that are private for this	1885	Returns an arrayref of map paths that are private for this
1143	player. May block.	1886	player. May block.
1144		1887
1145	=cut	1888	=cut
…		…
1163	}	1906	}
1164		1907
1165	\@paths	1908	\@paths
1166	}	1909	}
1167		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
1168	=item $player->ext_reply ($msgid, %msg)	1915	=item $player->ext_reply ($msgid, @msg)
1169		1916
1170	Sends an ext reply to the player.	1917	Sends an ext reply to the player.
1171		1918
1172	=cut	1919	=cut
1173		1920
1174	sub ext_reply($$%) {	1921	sub ext_reply($$@) {
1175	my ($self, $id, %msg) = @_;	1922	my ($self, $id, @msg) = @_;
1176		1923
1177	$msg{msgid} = $id;	1924	$self->ns->ext_reply ($id, @msg)
1178
1179	$self->send ("ext " . cf::to_json \%msg);
1180	}	1925	}
1181		1926
1182	=item $player->ext_event ($type, %msg)	1927	=item $player->ext_msg ($type, @msg)
1183		1928
1184	Sends an ext event to the client.	1929	Sends an ext event to the client.
1185		1930
1186	=cut	1931	=cut
1187		1932
1188	sub ext_event($$%) {	1933	sub ext_msg($$@) {
1189	my ($self, $type, %msg) = @_;	1934	my ($self, $type, @msg) = @_;
1190		1935
1191	$self->ns->ext_event ($type, %msg);	1936	$self->ns->ext_msg ($type, @msg);
1192	}	1937	}
1193		1938
1194	=head3 cf::region	1939	=head3 cf::region
1195		1940
1196	=over 4	1941	=over 4
…		…
1199		1944
1200	package cf::region;	1945	package cf::region;
1201		1946
1202	=item cf::region::find_by_path $path	1947	=item cf::region::find_by_path $path
1203		1948
1204	Tries to decuce the probable region for a map knowing only its path.	1949	Tries to decuce the likely region for a map knowing only its path.
1205		1950
1206	=cut	1951	=cut
1207		1952
1208	sub find_by_path($) {	1953	sub find_by_path($) {
1209	my ($path) = @_;	1954	my ($path) = @_;
1210		1955
		1956	$path =~ s/^~[^\/]*//; # skip ~login
		1957
1211	my ($match, $specificity);	1958	my ($match, $specificity);
1212		1959
1213	for my $region (list) {	1960	for my $region (list) {
1214	if ($region->match && $path =~ $region->match) {	1961	if ($region->{match} && $path =~ $region->{match}) {
1215	($match, $specificity) = ($region, $region->specificity)	1962	($match, $specificity) = ($region, $region->specificity)
1216	if $region->specificity > $specificity;	1963	if $region->specificity > $specificity;
1217	}	1964	}
1218	}	1965	}
1219		1966
…		…
1240	our $MAX_RESET = 3600;	1987	our $MAX_RESET = 3600;
1241	our $DEFAULT_RESET = 3000;	1988	our $DEFAULT_RESET = 3000;
1242		1989
1243	sub generate_random_map {	1990	sub generate_random_map {
1244	my ($self, $rmp) = @_;	1991	my ($self, $rmp) = @_;
1245	# mit "rum" bekleckern, nicht	1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
1246	$self->_create_random_map (	1995	$self->_create_random_map ($rmp);
1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1250	$rmp->{exit_on_final_map},
1251	$rmp->{xsize}, $rmp->{ysize},
1252	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1253	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1254	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1255	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1256	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1257	(cf::region::find $rmp->{region}), $rmp->{custom}
1258	)
1259	}	1996	}
1260		1997
1261	=item cf::map->register ($regex, $prio)	1998	=item cf::map->register ($regex, $prio)
1262		1999
1263	Register a handler for the map path matching the given regex at the	2000	Register a handler for the map path matching the given regex at the
…		…
1268		2005
1269	sub register {	2006	sub register {
1270	my (undef, $regex, $prio) = @_;	2007	my (undef, $regex, $prio) = @_;
1271	my $pkg = caller;	2008	my $pkg = caller;
1272		2009
1273	no strict;
1274	push @{"$pkg\::ISA"}, __PACKAGE__;	2010	push @{"$pkg\::ISA"}, __PACKAGE__;
1275		2011
1276	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1277	}	2013	}
1278		2014
1279	# also paths starting with '/'	2015	# also paths starting with '/'
1280	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1281		2017
1282	sub thawer_merge {	2018	sub thawer_merge {
1283	my ($self, $merge) = @_;	2019	my ($self, $merge) = @_;
1284		2020
1285	# we have to keep some variables in memory intact	2021	# we have to keep some variables in memory intact
1286	local $self->{path};	2022	local $self->{path};
1287	local $self->{load_path};	2023	local $self->{load_path};
1288	local $self->{deny_save};
1289	local $self->{deny_reset};
1290		2024
1291	$self->SUPER::thawer_merge ($merge);	2025	$self->SUPER::thawer_merge ($merge);
1292	}	2026	}
1293		2027
1294	sub normalise {	2028	sub normalise {
1295	my ($path, $base) = @_;	2029	my ($path, $base) = @_;
1296		2030
1297	$path = "$path"; # make sure its a string	2031	$path = "$path"; # make sure it's a string
1298		2032
1299	$path =~ s/\.map$//;	2033	$path =~ s/\.map$//;
1300		2034
1301	# map plan:	2035	# map plan:
1302	#	2036	#
…		…
1317	$base =~ s{[^/]+/?$}{};	2051	$base =~ s{[^/]+/?$}{};
1318	$path = "$base/$path";	2052	$path = "$base/$path";
1319	}	2053	}
1320		2054
1321	for ($path) {	2055	for ($path) {
1322	redo if s{//}{/};
1323	redo if s{/\.?/}{/};	2056	redo if s{/\.?/}{/};
1324	redo if s{/[^/]+/\.\./}{/};	2057	redo if s{/[^/]+/\.\./}{/};
1325	}	2058	}
1326		2059
1327	$path	2060	$path
…		…
1341	$self->init; # pass $1 etc.	2074	$self->init; # pass $1 etc.
1342	return $self;	2075	return $self;
1343	}	2076	}
1344	}	2077	}
1345		2078
1346	Carp::carp "unable to resolve path '$path' (base '$base').";	2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
1347	()	2080	()
1348	}	2081	}
1349		2082
		2083	# may re-bless or do other evil things
1350	sub init {	2084	sub init {
1351	my ($self) = @_;	2085	my ($self) = @_;
1352		2086
1353	$self	2087	$self
1354	}	2088	}
…		…
1373		2107
1374	# the temporary/swap location	2108	# the temporary/swap location
1375	sub save_path {	2109	sub save_path {
1376	my ($self) = @_;	2110	my ($self) = @_;
1377		2111
1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1379	"$TMPDIR/$path.map"	2113	"$TMPDIR/$path.map"
1380	}	2114	}
1381		2115
1382	# the unique path, undef == no special unique path	2116	# the unique path, undef == no special unique path
1383	sub uniq_path {	2117	sub uniq_path {
1384	my ($self) = @_;	2118	my ($self) = @_;
1385		2119
1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1387	"$UNIQUEDIR/$path"	2121	"$UNIQUEDIR/$path"
1388	}	2122	}
1389		2123
1390	# and all this just because we cannot iterate over	2124	sub decay_objects {
1391	# all maps in C++...
1392	sub change_all_map_light {
1393	my ($change) = @_;	2125	my ($self) = @_;
1394		2126
1395	$_->change_map_light ($change)	2127	return if $self->{deny_reset};
1396	for grep $_->outdoor, values %cf::MAP;	2128
		2129	$self->do_decay_objects;
1397	}	2130	}
1398		2131
1399	sub unlink_save {	2132	sub unlink_save {
1400	my ($self) = @_;	2133	my ($self) = @_;
1401		2134
…		…
1406		2139
1407	sub load_header_from($) {	2140	sub load_header_from($) {
1408	my ($self, $path) = @_;	2141	my ($self, $path) = @_;
1409		2142
1410	utf8::encode $path;	2143	utf8::encode $path;
1411	#aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1412	# or return;
1413
1414	$self->_load_header ($path)
1415	or return;	2145	or return;
1416		2146
		2147	$self->_load_header ($f)
		2148	or return;
		2149
		2150	local $MAP_LOADING{$self->{path}} = $self;
		2151	$f->resolve_delayed_derefs;
		2152
1417	$self->{load_path} = $path;	2153	$self->{load_path} = $path;
1418		2154
1419	1	2155	1
1420	}	2156	}
1421		2157
		2158	# used to laod the header of an original map
1422	sub load_header_orig {	2159	sub load_header_orig {
1423	my ($self) = @_;	2160	my ($self) = @_;
1424		2161
1425	$self->load_header_from ($self->load_path)	2162	$self->load_header_from ($self->load_path)
1426	}	2163	}
1427		2164
		2165	# used to laod the header of an instantiated map
1428	sub load_header_temp {	2166	sub load_header_temp {
1429	my ($self) = @_;	2167	my ($self) = @_;
1430		2168
1431	$self->load_header_from ($self->save_path)	2169	$self->load_header_from ($self->save_path)
1432	}	2170	}
1433		2171
		2172	# called after loading the header from an instantiated map
1434	sub prepare_temp {	2173	sub prepare_temp {
1435	my ($self) = @_;	2174	my ($self) = @_;
1436		2175
1437	$self->last_access ((delete $self->{last_access})	2176	$self->last_access ((delete $self->{last_access})
1438	|| $cf::RUNTIME); #d#	2177	|| $cf::RUNTIME); #d#
1439	# safety	2178	# safety
1440	$self->{instantiate_time} = $cf::RUNTIME	2179	$self->{instantiate_time} = $cf::RUNTIME
1441	if $self->{instantiate_time} > $cf::RUNTIME;	2180	if $self->{instantiate_time} > $cf::RUNTIME;
1442	}	2181	}
1443		2182
		2183	# called after loading the header from an original map
1444	sub prepare_orig {	2184	sub prepare_orig {
1445	my ($self) = @_;	2185	my ($self) = @_;
1446		2186
1447	$self->{load_original} = 1;	2187	$self->{load_original} = 1;
1448	$self->{instantiate_time} = $cf::RUNTIME;	2188	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1459	$self->load_header_orig	2199	$self->load_header_orig
1460	or return;	2200	or return;
1461	$self->prepare_orig;	2201	$self->prepare_orig;
1462	}	2202	}
1463		2203
		2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
		2206
1464	$self->default_region (cf::region::find_by_path $self->{path})	2207	$self->default_region (cf::region::find_by_path $self->{path})
1465	unless $self->default_region;	2208	unless $self->default_region;
1466		2209
1467	1	2210	1
1468	}	2211	}
1469		2212
1470	sub find;	2213	sub find;
1471	sub find {	2214	sub find {
1472	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1473		2216
		2217	cf::cede_to_tick;
		2218
1474	$path = normalise $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1475		2220
		2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1476	cf::lock_wait "map_find:$path";	2222	my $guard2 = cf::lock_acquire "map_find:$path";
1477		2223
1478	$cf::MAP{$path} || do {	2224	$cf::MAP{$path} || do {
1479	my $guard = cf::lock_acquire "map_find:$path";
1480	my $map = new_from_path cf::map $path	2225	my $map = new_from_path cf::map $path
1481	or return;	2226	or return;
1482		2227
1483	$map->{last_save} = $cf::RUNTIME;	2228	$map->{last_save} = $cf::RUNTIME;
1484		2229
1485	$map->load_header	2230	$map->load_header
1486	or return;	2231	or return;
1487		2232
1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1489	# doing this can freeze the server in a sync job, obviously	2234	# doing this can freeze the server in a sync job, obviously
1490	#$cf::WAIT_FOR_TICK->wait;	2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1491	$map->reset;	2238	$map->reset;
1492	undef $guard;
1493	return find $path;	2239	return find $path;
1494	}	2240	}
1495		2241
1496	$cf::MAP{$path} = $map	2242	$cf::MAP{$path} = $map
1497	}	2243	}
1498	}	2244	}
1499		2245
1500	sub pre_load { }	2246	sub pre_load { }
1501	sub post_load { }	2247	#sub post_load { } # XS
1502		2248
1503	sub load {	2249	sub load {
1504	my ($self) = @_;	2250	my ($self) = @_;
1505		2251
1506	local $self->{deny_reset} = 1; # loading can take a long time	2252	local $self->{deny_reset} = 1; # loading can take a long time
1507		2253
1508	my $path = $self->{path};	2254	my $path = $self->{path};
1509		2255
1510	{	2256	{
1511	my $guard = cf::lock_acquire "map_load:$path";	2257	my $guard = cf::lock_acquire "map_data:$path";
1512		2258
		2259	return unless $self->valid;
1513	return if $self->in_memory != cf::MAP_SWAPPED;	2260	return unless $self->state == cf::MAP_SWAPPED;
1514
1515	$self->in_memory (cf::MAP_LOADING);
1516		2261
1517	$self->alloc;	2262	$self->alloc;
1518		2263
1519	$self->pre_load;	2264	$self->pre_load;
1520	Coro::cede;	2265	cf::cede_to_tick;
1521		2266
1522	$self->_load_objects ($self->{load_path}, 1)	2267	if (exists $self->{load_path}) {
		2268	my $f = new_from_file cf::object::thawer $self->{load_path};
		2269	$f->skip_block;
		2270	$self->_load_objects ($f)
1523	or return;	2271	or return;
1524		2272
1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1526	if delete $self->{load_original};	2274	if delete $self->{load_original};
1527		2275
1528	if (my $uniq = $self->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1529	utf8::encode $uniq;	2277	utf8::encode $uniq;
1530	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1531	$self->clear_unique_items;	2280	$self->clear_unique_items;
1532	$self->_load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1533	}	2285	}
1534	}
1535		2286
1536	Coro::cede;	2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1537	# now do the right thing for maps	2296	# now do the right thing for maps
1538	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1539	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1540	unless $self->difficulty;	2299	unless $self->difficulty;
1541	Coro::cede;	2300	cf::cede_to_tick;
1542		2301
1543	unless ($self->{deny_activate}) {	2302	unless ($self->{deny_activate}) {
1544	$self->decay_objects;	2303	$self->decay_objects;
1545	$self->fix_auto_apply;	2304	$self->fix_auto_apply;
1546	$self->update_buttons;	2305	$self->update_buttons;
1547	Coro::cede;	2306	cf::cede_to_tick;
1548	$self->set_darkness_map;	2307	#$self->activate; # no longer activate maps automatically
1549	Coro::cede;
1550	$self->activate;
1551	}	2308	}
1552		2309
1553	$self->in_memory (cf::MAP_IN_MEMORY);	2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
1554	}	2312	}
1555		2313
1556	$self->post_load;	2314	$self->post_load;
1557	}
1558		2315
		2316	1
		2317	}
		2318
		2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
1559	sub customise_for {	2322	sub customise_for {
1560	my ($self, $ob) = @_;	2323	my ($self, $ob) = @_;
1561		2324
1562	return find "~" . $ob->name . "/" . $self->{path}	2325	return find "~" . $ob->name . "/" . $self->{path}
1563	if $self->per_player;	2326	if $self->per_player;
1564		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
1565	$self	2331	$self
1566	}
1567
1568	# find and load all maps in the 3x3 area around a map
1569	sub load_diag {
1570	my ($map) = @_;
1571
1572	my @diag; # diagonal neighbours
1573
1574	for (0 .. 3) {
1575	my $neigh = $map->tile_path ($_)
1576	or next;
1577	$neigh = find $neigh, $map
1578	or next;
1579	$neigh->load;
1580
1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1583	}
1584
1585	for (@diag) {
1586	my $neigh = find @$_
1587	or next;
1588	$neigh->load;
1589	}
1590	}	2332	}
1591		2333
1592	sub find_sync {	2334	sub find_sync {
1593	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1594		2336
1595	cf::sync_job { find $path, $origin }	2337	# it's a bug to call this from the main context
		2338	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2339	if $Coro::current == $Coro::main;
		2340
		2341	find $path, $origin
1596	}	2342	}
1597		2343
1598	sub do_load_sync {	2344	sub do_load_sync {
1599	my ($map) = @_;	2345	my ($map) = @_;
1600		2346
1601	cf::sync_job { $map->load };	2347	# it's a bug to call this from the main context
		2348	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2349	if $Coro::current == $Coro::main;
		2350
		2351	$map->load;
1602	}	2352	}
1603		2353
1604	our %MAP_PREFETCH;	2354	our %MAP_PREFETCH;
1605	our $MAP_PREFETCHER = undef;	2355	our $MAP_PREFETCHER = undef;
1606		2356
1607	sub find_async {	2357	sub find_async {
1608	my ($path, $origin) = @_;	2358	my ($path, $origin, $load) = @_;
1609		2359
1610	$path = normalise $path, $origin && $origin->{path};	2360	$path = normalise $path, $origin;
1611		2361
1612	if (my $map = $cf::MAP{$path}) {	2362	if (my $map = $cf::MAP{$path}) {
1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2363	return $map if !$load || $map->linkable;
1614	}	2364	}
1615		2365
1616	undef $MAP_PREFETCH{$path};	2366	$MAP_PREFETCH{$path} |= $load;
		2367
1617	$MAP_PREFETCHER ||= cf::async {	2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
1618	while (%MAP_PREFETCH) {	2371	while (%MAP_PREFETCH) {
1619	for my $path (keys %MAP_PREFETCH) {	2372	while (my ($k, $v) = each %MAP_PREFETCH) {
1620	my $map = find $path	2373	if (my $map = find $k) {
1621	or next;
1622	$map->load;	2374	$map->load if $v;
		2375	}
1623		2376
1624	delete $MAP_PREFETCH{$path};	2377	delete $MAP_PREFETCH{$k};
1625	}	2378	}
1626	}	2379	}
1627	undef $MAP_PREFETCHER;	2380	undef $MAP_PREFETCHER;
1628	};	2381	};
1629	$MAP_PREFETCHER->prio (6);	2382	$MAP_PREFETCHER->prio (6);
1630		2383
1631	()	2384	()
1632	}	2385	}
1633		2386
		2387	# common code, used by both ->save and ->swapout
1634	sub save {	2388	sub _save {
1635	my ($self) = @_;	2389	my ($self) = @_;
1636
1637	my $lock = cf::lock_acquire "map_data:" . $self->path;
1638		2390
1639	$self->{last_save} = $cf::RUNTIME;	2391	$self->{last_save} = $cf::RUNTIME;
1640		2392
1641	return unless $self->dirty;	2393	return unless $self->dirty;
1642		2394
…		…
1648	return if $self->{deny_save};	2400	return if $self->{deny_save};
1649		2401
1650	local $self->{last_access} = $self->last_access;#d#	2402	local $self->{last_access} = $self->last_access;#d#
1651		2403
1652	cf::async {	2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
1653	$_->contr->save for $self->players;	2406	$_->contr->save for $self->players;
1654	};	2407	};
		2408
		2409	cf::get_slot 0.02;
1655		2410
1656	if ($uniq) {	2411	if ($uniq) {
1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1659	} else {	2414	} else {
1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1661	}	2416	}
1662	}	2417	}
1663		2418
		2419	sub save {
		2420	my ($self) = @_;
		2421
		2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2423
		2424	$self->_save;
		2425	}
		2426
1664	sub swap_out {	2427	sub swap_out {
1665	my ($self) = @_;	2428	my ($self) = @_;
1666		2429
1667	# save first because save cedes
1668	$self->save;
1669
1670	my $lock = cf::lock_acquire "map_data:" . $self->path;	2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
1671		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1672	return if $self->players;	2434	return if $self->players;
1673	return if $self->in_memory != cf::MAP_IN_MEMORY;
1674	return if $self->{deny_save};
1675		2435
		2436	# first deactivate the map and "unlink" it from the core
		2437	$self->deactivate;
		2438	$_->clear_links_to ($self) for values %cf::MAP;
		2439	$self->state (cf::MAP_SWAPPED);
		2440
		2441	# then atomically save
		2442	$self->_save;
		2443
		2444	# then free the map
1676	$self->clear;	2445	$self->clear;
1677	$self->in_memory (cf::MAP_SWAPPED);
1678	}	2446	}
1679		2447
1680	sub reset_at {	2448	sub reset_at {
1681	my ($self) = @_;	2449	my ($self) = @_;
1682		2450
1683	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1685	return 1e99 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1686		2453
1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2455	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1689		2456
…		…
1700	my ($self) = @_;	2467	my ($self) = @_;
1701		2468
1702	my $lock = cf::lock_acquire "map_data:$self->{path}";	2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
1703		2470
1704	return if $self->players;	2471	return if $self->players;
1705	return if $self->isa ("ext::map_per_player");#d#
1706		2472
1707	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
1708		2474
1709	$self->in_memory (cf::MAP_SWAPPED);	2475	$self->state (cf::MAP_SWAPPED);
1710		2476
1711	# need to save uniques path	2477	# need to save uniques path
1712	unless ($self->{deny_save}) {	2478	unless ($self->{deny_save}) {
1713	my $uniq = $self->uniq_path; utf8::encode $uniq;	2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
1714		2480
…		…
1716	if $uniq;	2482	if $uniq;
1717	}	2483	}
1718		2484
1719	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1720		2486
		2487	$self->deactivate;
		2488	$_->clear_links_to ($self) for values %cf::MAP;
1721	$self->clear;	2489	$self->clear;
1722
1723	$_->clear_links_to ($self) for values %cf::MAP;
1724		2490
1725	$self->unlink_save;	2491	$self->unlink_save;
1726	$self->destroy;	2492	$self->destroy;
1727	}	2493	}
1728		2494
1729	my $nuke_counter = "aaaa";	2495	my $nuke_counter = "aaaa";
1730		2496
1731	sub nuke {	2497	sub nuke {
1732	my ($self) = @_;	2498	my ($self) = @_;
1733		2499
		2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2502
1734	delete $cf::MAP{$self->path};	2503	delete $cf::MAP{$self->path};
1735		2504
1736	$self->unlink_save;	2505	$self->unlink_save;
1737		2506
1738	bless $self, "cf::map";	2507	bless $self, "cf::map::wrap";
1739	delete $self->{deny_reset};	2508	delete $self->{deny_reset};
1740	$self->{deny_save} = 1;	2509	$self->{deny_save} = 1;
1741	$self->reset_timeout (1);	2510	$self->reset_timeout (1);
1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1743		2512
1744	$cf::MAP{$self->path} = $self;	2513	$cf::MAP{$self->path} = $self;
		2514	}
1745		2515
1746	$self->reset; # polite request, might not happen	2516	$self->reset; # polite request, might not happen
		2517	}
		2518
		2519	=item $maps = cf::map::tmp_maps
		2520
		2521	Returns an arrayref with all map paths of currently instantiated and saved
		2522	maps. May block.
		2523
		2524	=cut
		2525
		2526	sub tmp_maps() {
		2527	[
		2528	map {
		2529	utf8::decode $_;
		2530	/\.map$/
		2531	? normalise $_
		2532	: ()
		2533	} @{ aio_readdir $TMPDIR or [] }
		2534	]
		2535	}
		2536
		2537	=item $maps = cf::map::random_maps
		2538
		2539	Returns an arrayref with all map paths of currently instantiated and saved
		2540	random maps. May block.
		2541
		2542	=cut
		2543
		2544	sub random_maps() {
		2545	[
		2546	map {
		2547	utf8::decode $_;
		2548	/\.map$/
		2549	? normalise "?random/$_"
		2550	: ()
		2551	} @{ aio_readdir $RANDOMDIR or [] }
		2552	]
1747	}	2553	}
1748		2554
1749	=item cf::map::unique_maps	2555	=item cf::map::unique_maps
1750		2556
1751	Returns an arrayref of paths of all shared maps that have	2557	Returns an arrayref of paths of all shared maps that have
1752	instantiated unique items. May block.	2558	instantiated unique items. May block.
1753		2559
1754	=cut	2560	=cut
1755		2561
1756	sub unique_maps() {	2562	sub unique_maps() {
1757	my $files = aio_readdir $UNIQUEDIR	2563	[
1758	or return;	2564	map {
1759
1760	my @paths;
1761
1762	for (@$files) {
1763	utf8::decode $_;	2565	utf8::decode $_;
1764	next if /\.pst$/;	2566	s/\.map$//; # TODO future compatibility hack
1765	next unless /^$PATH_SEP/o;	2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1766		2568	? ()
1767	push @paths, cf::map::normalise $_;	2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
1768	}	2571	]
1769
1770	\@paths
1771	}	2572	}
1772		2573
1773	package cf;	2574	=item cf::map::static_maps
		2575
		2576	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2577	file in the shared directory excluding F</styles> and F</editor>). May
		2578	block.
		2579
		2580	=cut
		2581
		2582	sub static_maps() {
		2583	my @dirs = "";
		2584	my @maps;
		2585
		2586	while (@dirs) {
		2587	my $dir = shift @dirs;
		2588
		2589	next if $dir eq "/styles" || $dir eq "/editor";
		2590
		2591	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2592	or return;
		2593
		2594	for (@$files) {
		2595	s/\.map$// or next;
		2596	utf8::decode $_;
		2597	push @maps, "$dir/$_";
		2598	}
		2599
		2600	push @dirs, map "$dir/$_", @$dirs;
		2601	}
		2602
		2603	\@maps
		2604	}
1774		2605
1775	=back	2606	=back
1776		2607
1777	=head3 cf::object	2608	=head3 cf::object
1778		2609
…		…
1782		2613
1783	=over 4	2614	=over 4
1784		2615
1785	=item $ob->inv_recursive	2616	=item $ob->inv_recursive
1786		2617
1787	Returns the inventory of the object _and_ their inventories, recursively.	2618	Returns the inventory of the object I<and> their inventories, recursively,
		2619	but I<not> the object itself.
1788		2620
1789	=cut	2621	=cut
1790		2622
1791	sub inv_recursive_;	2623	sub inv_recursive_;
1792	sub inv_recursive_ {	2624	sub inv_recursive_ {
…		…
1795		2627
1796	sub inv_recursive {	2628	sub inv_recursive {
1797	inv_recursive_ inv $_[0]	2629	inv_recursive_ inv $_[0]
1798	}	2630	}
1799		2631
		2632	=item $ref = $ob->ref
		2633
		2634	Creates and returns a persistent reference to an object that can be stored as a string.
		2635
		2636	=item $ob = cf::object::deref ($refstring)
		2637
		2638	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2639	even if the object actually exists. May block.
		2640
		2641	=cut
		2642
		2643	sub deref {
		2644	my ($ref) = @_;
		2645
		2646	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2647	my ($uuid, $name) = ($1, $2);
		2648	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2649	or return;
		2650	$pl->ob->uuid eq $uuid
		2651	or return;
		2652
		2653	$pl->ob
		2654	} else {
		2655	warn "$ref: cannot resolve object reference\n";
		2656	undef
		2657	}
		2658	}
		2659
1800	package cf;	2660	package cf;
1801		2661
1802	=back	2662	=back
1803		2663
1804	=head3 cf::object::player	2664	=head3 cf::object::player
…		…
1810	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2670	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1811	can be C<undef>. Does the right thing when the player is currently in a	2671	can be C<undef>. Does the right thing when the player is currently in a
1812	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1813		2673
1814	=cut	2674	=cut
		2675
		2676	our $SAY_CHANNEL = {
		2677	id => "say",
		2678	title => "Map",
		2679	reply => "say ",
		2680	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2681	};
		2682
		2683	our $CHAT_CHANNEL = {
		2684	id => "chat",
		2685	title => "Chat",
		2686	reply => "chat ",
		2687	tooltip => "Player chat and shouts, global to the server.",
		2688	};
1815		2689
1816	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1817	# with dialog boxes.	2691	# with dialog boxes.
1818	#TODO: the first argument must go, split into a $npc->reply_to ( method	2692	#TODO: the first argument must go, split into a $npc->reply_to ( method
1819	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1821		2695
1822	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1823		2697
1824	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1825	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1826	} else {	2701	} else {
		2702	my $pl = $self->contr;
		2703
		2704	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2705	my $dialog = $pl->{npc_dialog};
		2706	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2707
		2708	} else {
1827	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1828	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1829	}	2712	}
		2713	}
		2714
		2715	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2716
		2717	=cut
		2718
		2719	sub cf::object::send_msg {
		2720	my $pl = shift->contr
		2721	or return;
		2722	$pl->send_msg (@_);
1830	}	2723	}
1831		2724
1832	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1833		2726
1834	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1847		2740
1848	=item $player_object->enter_link	2741	=item $player_object->enter_link
1849		2742
1850	Freezes the player and moves him/her to a special map (C<{link}>).	2743	Freezes the player and moves him/her to a special map (C<{link}>).
1851		2744
1852	The player should be reasonably safe there for short amounts of time. You	2745	The player should be reasonably safe there for short amounts of time (e.g.
1853	I<MUST> call C<leave_link> as soon as possible, though.	2746	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2747	though, as the player cannot control the character while it is on the link
		2748	map.
1854		2749
1855	Will never block.	2750	Will never block.
1856		2751
1857	=item $player_object->leave_link ($map, $x, $y)	2752	=item $player_object->leave_link ($map, $x, $y)
1858		2753
…		…
1878	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1879	my ($self) = @_;	2774	my ($self) = @_;
1880		2775
1881	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
1882		2777
		2778	++$self->{_link_recursion};
		2779
1883	return if UNIVERSAL::isa $self->map, "ext::map_link";	2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
1884		2781
1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1886	if $self->map;	2783	if $self->map && $self->map->{path} ne "{link}";
1887		2784
1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1889	}	2786	}
1890		2787
1891	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1892	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
		2790
		2791	return unless $self->contr->active;
1893		2792
1894	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1895		2794
1896	unless ($map) {	2795	unless ($map) {
1897	# restore original map position	2796	# restore original map position
…		…
1908	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1909	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1910		2809
1911	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1912	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1913	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1914		2813
1915	$map->load;	2814	$map->load;
1916	$map->load_diag;
1917		2815
1918	return unless $self->contr->active;	2816	return unless $self->contr->active;
1919	$self->activate_recursive;
1920		2817
1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1922	$self->enter_map ($map, $x, $y);	2819	if ($self->enter_map ($map, $x, $y)) {
1923	}	2820	# entering was successful
1924		2821	delete $self->{_link_recursion};
1925	cf::player->attach (	2822	# only activate afterwards, to support waiting in hooks
1926	on_logout => sub {	2823	$self->activate_recursive;
1927	my ($pl) = @_;
1928
1929	# abort map switching before logout
1930	if ($pl->ob->{_link_pos}) {
1931	cf::sync_job {
1932	$pl->ob->leave_link
1933	};
1934	}
1935	},	2824	}
1936	on_login => sub {
1937	my ($pl) = @_;
1938		2825
1939	# try to abort aborted map switching on player login :)	2826	}
1940	# should happen only on crashes
1941	if ($pl->ob->{_link_pos}) {
1942	$pl->ob->enter_link;
1943	(async {
1944	$pl->ob->reply (undef,
1945	"There was an internal problem at your last logout, "
1946	. "the server will try to bring you to your intended destination in a second.",
1947	cf::NDI_RED);
1948	# we need this sleep as the login has a concurrent enter_exit running
1949	# and this sleep increases chances of the player not ending up in scorn
1950	Coro::Timer::sleep 1;
1951	$pl->ob->leave_link;
1952	})->prio (2);
1953	}
1954	},
1955	);
1956		2827
1957	=item $player_object->goto ($path, $x, $y)	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1958		2829
		2830	Moves the player to the given map-path and coordinates by first freezing
		2831	her, loading and preparing them map, calling the provided $check callback
		2832	that has to return the map if sucecssful, and then unfreezes the player on
		2833	the new (success) or old (failed) map position. In either case, $done will
		2834	be called at the end of this process.
		2835
		2836	Note that $check will be called with a potentially non-loaded map, so if
		2837	it needs a loaded map it has to call C<< ->load >>.
		2838
1959	=cut	2839	=cut
		2840
		2841	our $GOTOGEN;
1960		2842
1961	sub cf::object::player::goto {	2843	sub cf::object::player::goto {
1962	my ($self, $path, $x, $y) = @_;	2844	my ($self, $path, $x, $y, $check, $done) = @_;
		2845
		2846	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2847	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2848	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2849	($path, $x, $y) = @$EMERGENCY_POSITION;
		2850	}
		2851
		2852	# do generation counting so two concurrent goto's will be executed in-order
		2853	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1963		2854
1964	$self->enter_link;	2855	$self->enter_link;
1965		2856
1966	(async {	2857	(async {
		2858	$Coro::current->{desc} = "player::goto $path $x $y";
		2859
		2860	# *tag paths override both path and x|y
		2861	if ($path =~ /^\*(.*)$/) {
		2862	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2863	my $ob = $obs[rand @obs];
		2864
		2865	# see if we actually can go there
		2866	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2867	$ob = $obs[rand @obs];
		2868	} else {
		2869	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2870	}
		2871	# else put us there anyways for now #d#
		2872
		2873	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2874	} else {
		2875	($path, $x, $y) = (undef, undef, undef);
		2876	}
		2877	}
		2878
1967	my $map = eval {	2879	my $map = eval {
1968	my $map = cf::map::find $path;	2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1969	$map = $map->customise_for ($self) if $map;	2883	$map = $map->customise_for ($self);
		2884	$map = $check->($map, $x, $y, $self) if $check && $map;
		2885	} else {
		2886	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
		2888
1970	$map	2889	$map
		2890	};
		2891
		2892	if ($@) {
		2893	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2894	LOG llevError | logBacktrace, Carp::longmess $@;
1971	} or	2895	}
1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1973		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1974	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1975	})->prio (1);	2903	})->prio (1);
1976	}	2904	}
1977		2905
1978	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
1979		2907
…		…
1999	}	2927	}
2000		2928
2001	sub prepare_random_map {	2929	sub prepare_random_map {
2002	my ($exit) = @_;	2930	my ($exit) = @_;
2003		2931
2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
2005
2006	# all this does is basically replace the /! path by	2932	# all this does is basically replace the /! path by
2007	# a new random map path (?random/...) with a seed	2933	# a new random map path (?random/...) with a seed
2008	# that depends on the exit object	2934	# that depends on the exit object
2009		2935
2010	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
…		…
2012	if ($exit->map) {	2938	if ($exit->map) {
2013	$rmp->{region} = $exit->region->name;	2939	$rmp->{region} = $exit->region->name;
2014	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
2015	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
2016	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
2017	}	2945	}
2018		2946
2019	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
2020		2948
2021	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2022	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
2023	my $meta = "$RANDOMDIR/$md5.meta";	2951	my $meta = "$RANDOMDIR/$md5.meta";
2024		2952
2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2026	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
2027	undef $fh;	2955	undef $fh;
2028	aio_rename "$meta~", $meta;	2956	aio_rename "$meta~", $meta;
2029		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
2030	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
2031	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
2032	}	2964	}
2033	}	2965	}
2034		2966
2035	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
2036	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
2037		2969
2038	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
2039		2971
2040	if ($exit->slaying eq "/!") {
2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
2042	# the problem is that $exit might not survive long enough
2043	# so it needs to be done right now, right here
2044	cf::sync_job { prepare_random_map $exit };
2045	}
2046
2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2048	my $hp = $exit->stats->hp;
2049	my $sp = $exit->stats->sp;
2050
2051	$self->enter_link;	2972	$self->enter_link;
2052		2973
2053	(async {	2974	(async {
2054	$self->deactivate_recursive; # just to be sure	2975	$Coro::current->{desc} = "enter_exit";
		2976
2055	unless (eval {	2977	unless (eval {
		2978	$self->deactivate_recursive; # just to be sure
		2979
		2980	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2981	my $x = $exit->stats->hp;
		2982	my $y = $exit->stats->sp;
		2983
		2984	# special map handling
		2985	my $slaying = $exit->slaying;
		2986
		2987	# special map handling
		2988	if ($slaying eq "/!") {
		2989	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2990
		2991	prepare_random_map $exit
		2992	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2993
		2994	$map = $exit->slaying;
		2995
		2996	} elsif ($slaying eq '!up') {
		2997	$map = $exit->map->tile_path (cf::TILE_UP);
		2998	$x = $exit->x;
		2999	$y = $exit->y;
		3000
		3001	} elsif ($slaying eq '!down') {
		3002	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3003	$x = $exit->x;
		3004	$y = $exit->y;
		3005	}
		3006
2056	$self->goto ($slaying, $hp, $sp);	3007	$self->goto ($map, $x, $y);
2057		3008
		3009	# if exit is damned, update players death & WoR home-position
		3010	$self->contr->savebed ($map, $x, $y)
		3011	if $exit->flag (cf::FLAG_DAMNED);
		3012
2058	1;	3013	1
2059	}) {	3014	}) {
2060	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
2061	. "I'll try to bring you back to the map you were before. "	3016	. "I'll try to bring you back to the map you were before. "
2062	. "Please report this to the dungeon master!",	3017	. "Please report this to the dungeon master!",
2063	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
2064		3019
2065	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
2066	$self->leave_link;	3021	$self->leave_link;
2067	}	3022	}
2068	})->prio (1);	3023	})->prio (1);
2069	}	3024	}
2070		3025
…		…
2084		3039
2085	utf8::encode $text;	3040	utf8::encode $text;
2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2087	}	3042	}
2088		3043
		3044	=item $client->send_big_packet ($pkt)
		3045
		3046	Like C<send_packet>, but tries to compress large packets, and fragments
		3047	them as required.
		3048
		3049	=cut
		3050
		3051	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3052
		3053	sub cf::client::send_big_packet {
		3054	my ($self, $pkt) = @_;
		3055
		3056	# try lzf for large packets
		3057	$pkt = "lzf " . Compress::LZF::compress $pkt
		3058	if 1024 <= length $pkt and $self->{can_lzf};
		3059
		3060	# split very large packets
		3061	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3062	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3063	$pkt = "frag";
		3064	}
		3065
		3066	$self->send_packet ($pkt);
		3067	}
		3068
		3069	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3070
		3071	Send a drawinfo or msg packet to the client, formatting the msg for the
		3072	client if neccessary. C<$type> should be a string identifying the type of
		3073	the message, with C<log> being the default. If C<$color> is negative, suppress
		3074	the message unless the client supports the msg packet.
		3075
		3076	=cut
		3077
		3078	# non-persistent channels (usually the info channel)
		3079	our %CHANNEL = (
		3080	"c/motd" => {
		3081	id => "infobox",
		3082	title => "MOTD",
		3083	reply => undef,
		3084	tooltip => "The message of the day",
		3085	},
		3086	"c/identify" => {
		3087	id => "infobox",
		3088	title => "Identify",
		3089	reply => undef,
		3090	tooltip => "Items recently identified",
		3091	},
		3092	"c/examine" => {
		3093	id => "infobox",
		3094	title => "Examine",
		3095	reply => undef,
		3096	tooltip => "Signs and other items you examined",
		3097	},
		3098	"c/shopinfo" => {
		3099	id => "infobox",
		3100	title => "Shop Info",
		3101	reply => undef,
		3102	tooltip => "What your bargaining skill tells you about the shop",
		3103	},
		3104	"c/book" => {
		3105	id => "infobox",
		3106	title => "Book",
		3107	reply => undef,
		3108	tooltip => "The contents of a note or book",
		3109	},
		3110	"c/lookat" => {
		3111	id => "infobox",
		3112	title => "Look",
		3113	reply => undef,
		3114	tooltip => "What you saw there",
		3115	},
		3116	"c/who" => {
		3117	id => "infobox",
		3118	title => "Players",
		3119	reply => undef,
		3120	tooltip => "Shows players who are currently online",
		3121	},
		3122	"c/body" => {
		3123	id => "infobox",
		3124	title => "Body Parts",
		3125	reply => undef,
		3126	tooltip => "Shows which body parts you posess and are available",
		3127	},
		3128	"c/statistics" => {
		3129	id => "infobox",
		3130	title => "Statistics",
		3131	reply => undef,
		3132	tooltip => "Shows your primary statistics",
		3133	},
		3134	"c/skills" => {
		3135	id => "infobox",
		3136	title => "Skills",
		3137	reply => undef,
		3138	tooltip => "Shows your experience per skill and item power",
		3139	},
		3140	"c/shopitems" => {
		3141	id => "infobox",
		3142	title => "Shop Items",
		3143	reply => undef,
		3144	tooltip => "Shows the items currently for sale in this shop",
		3145	},
		3146	"c/resistances" => {
		3147	id => "infobox",
		3148	title => "Resistances",
		3149	reply => undef,
		3150	tooltip => "Shows your resistances",
		3151	},
		3152	"c/pets" => {
		3153	id => "infobox",
		3154	title => "Pets",
		3155	reply => undef,
		3156	tooltip => "Shows information abotu your pets/a specific pet",
		3157	},
		3158	"c/perceiveself" => {
		3159	id => "infobox",
		3160	title => "Perceive Self",
		3161	reply => undef,
		3162	tooltip => "You gained detailed knowledge about yourself",
		3163	},
		3164	"c/uptime" => {
		3165	id => "infobox",
		3166	title => "Uptime",
		3167	reply => undef,
		3168	tooltip => "How long the server has been running since last restart",
		3169	},
		3170	"c/mapinfo" => {
		3171	id => "infobox",
		3172	title => "Map Info",
		3173	reply => undef,
		3174	tooltip => "Information related to the maps",
		3175	},
		3176	"c/party" => {
		3177	id => "party",
		3178	title => "Party",
		3179	reply => "gsay ",
		3180	tooltip => "Messages and chat related to your party",
		3181	},
		3182	"c/death" => {
		3183	id => "death",
		3184	title => "Death",
		3185	reply => undef,
		3186	tooltip => "Reason for and more info about your most recent death",
		3187	},
		3188	"c/say" => $SAY_CHANNEL,
		3189	"c/chat" => $CHAT_CHANNEL,
		3190	);
		3191
		3192	sub cf::client::send_msg {
		3193	my ($self, $channel, $msg, $color, @extra) = @_;
		3194
		3195	$msg = $self->pl->expand_cfpod ($msg)
		3196	unless $color & cf::NDI_VERBATIM;
		3197
		3198	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3199
		3200	# check predefined channels, for the benefit of C
		3201	if ($CHANNEL{$channel}) {
		3202	$channel = $CHANNEL{$channel};
		3203
		3204	$self->ext_msg (channel_info => $channel);
		3205	$channel = $channel->{id};
		3206
		3207	} elsif (ref $channel) {
		3208	# send meta info to client, if not yet sent
		3209	unless (exists $self->{channel}{$channel->{id}}) {
		3210	$self->{channel}{$channel->{id}} = $channel;
		3211	$self->ext_msg (channel_info => $channel);
		3212	}
		3213
		3214	$channel = $channel->{id};
		3215	}
		3216
		3217	return unless @extra || length $msg;
		3218
		3219	# default colour, mask it out
		3220	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3221	if $color & cf::NDI_DEF;
		3222
		3223	my $pkt = "msg "
		3224	. $self->{json_coder}->encode (
		3225	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3226	);
		3227
		3228	$self->send_big_packet ($pkt);
		3229	}
		3230
2089	=item $client->ext_event ($type, %msg)	3231	=item $client->ext_msg ($type, @msg)
2090		3232
2091	Sends an exti event to the client.	3233	Sends an ext event to the client.
2092		3234
2093	=cut	3235	=cut
2094		3236
2095	sub cf::client::ext_event($$%) {	3237	sub cf::client::ext_msg($$@) {
2096	my ($self, $type, %msg) = @_;	3238	my ($self, $type, @msg) = @_;
2097		3239
		3240	if ($self->extcmd == 2) {
		3241	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3242	} elsif ($self->extcmd == 1) { # TODO: remove
2098	$msg{msgtype} = "event_$type";	3243	push @msg, msgtype => "event_$type";
2099	$self->send_packet ("ext " . cf::to_json \%msg);	3244	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3245	}
		3246	}
		3247
		3248	=item $client->ext_reply ($msgid, @msg)
		3249
		3250	Sends an ext reply to the client.
		3251
		3252	=cut
		3253
		3254	sub cf::client::ext_reply($$@) {
		3255	my ($self, $id, @msg) = @_;
		3256
		3257	return unless $self->extcmd == 2;
		3258
		3259	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2100	}	3260	}
2101		3261
2102	=item $success = $client->query ($flags, "text", \&cb)	3262	=item $success = $client->query ($flags, "text", \&cb)
2103		3263
2104	Queues a query to the client, calling the given callback with	3264	Queues a query to the client, calling the given callback with
2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3265	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2106	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3266	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2107		3267
2108	Queries can fail, so check the return code. Or don't, as queries will become	3268	Queries can fail, so check the return code. Or don't, as queries will
2109	reliable at some point in the future.	3269	become reliable at some point in the future.
2110		3270
2111	=cut	3271	=cut
2112		3272
2113	sub cf::client::query {	3273	sub cf::client::query {
2114	my ($self, $flags, $text, $cb) = @_;	3274	my ($self, $flags, $text, $cb) = @_;
…		…
2122	utf8::encode $text;	3282	utf8::encode $text;
2123	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3283	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2124		3284
2125	$self->send_packet ($self->{query_queue}[0][0])	3285	$self->send_packet ($self->{query_queue}[0][0])
2126	if @{ $self->{query_queue} } == 1;	3286	if @{ $self->{query_queue} } == 1;
		3287
		3288	1
2127	}	3289	}
2128		3290
2129	cf::client->attach (	3291	cf::client->attach (
		3292	on_connect => sub {
		3293	my ($ns) = @_;
		3294
		3295	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3296	},
2130	on_reply => sub {	3297	on_reply => sub {
2131	my ($ns, $msg) = @_;	3298	my ($ns, $msg) = @_;
2132		3299
2133	# this weird shuffling is so that direct followup queries	3300	# this weird shuffling is so that direct followup queries
2134	# get handled first	3301	# get handled first
…		…
2146	} else {	3313	} else {
2147	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3314	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2148	}	3315	}
2149	}	3316	}
2150	},	3317	},
		3318	on_exticmd => sub {
		3319	my ($ns, $buf) = @_;
		3320
		3321	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3322
		3323	if (ref $msg) {
		3324	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3325
		3326	my @reply;
		3327
		3328	if (my $cb = $EXTICMD{$type}) {
		3329	@reply = $cb->($ns, @payload);
		3330	}
		3331
		3332	$ns->ext_reply ($reply, @reply)
		3333	if $reply;
		3334
		3335	} else {
		3336	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3337	}
		3338
		3339	cf::override;
		3340	},
2151	);	3341	);
2152		3342
2153	=item $client->async (\&cb)	3343	=item $client->async (\&cb)
2154		3344
2155	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
…		…
2171		3361
2172	$coro	3362	$coro
2173	}	3363	}
2174		3364
2175	cf::client->attach (	3365	cf::client->attach (
2176	on_destroy => sub {	3366	on_client_destroy => sub {
2177	my ($ns) = @_;	3367	my ($ns) = @_;
2178		3368
2179	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2180	},	3370	},
2181	);	3371	);
…		…
2196	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
2197	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
2198		3388
2199	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
2200		3390
2201	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3391	$safe->permit_only (Opcode::opset qw(
		3392	:base_core :base_mem :base_orig :base_math :base_loop
		3393	grepstart grepwhile mapstart mapwhile
		3394	sort time
		3395	));
2202		3396
2203	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
2204		3398
2205	=pod	3399	=pod
2206		3400
2207	The following functions and methods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
2208		3402
2209	cf::object contr pay_amount pay_player map	3403	cf::object
		3404	contr pay_amount pay_player map x y force_find force_add destroy
		3405	insert remove name archname title slaying race decrease split
		3406	value
		3407
2210	cf::object::player player	3408	cf::object::player
2211	cf::player peaceful	3409	player
2212	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
2213		3416
2214	=cut	3417	=cut
2215		3418
2216	for (	3419	for (
2217	["cf::object" => qw(contr pay_amount pay_player map)],	3420	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3421	insert remove inv nrof name archname title slaying race
		3422	decrease split destroy change_exp value msg lore send_msg)],
2218	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
2219	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
2220	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
2221	) {	3426	) {
2222	no strict 'refs';
2223	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
2224	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2225	for @funs;	3429	for @funs;
2226	}	3430	}
2227		3431
…		…
2242		3446
2243	my $qcode = $code;	3447	my $qcode = $code;
2244	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2245	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
2246		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
2247	local $_;	3454	local $_;
2248	local @safe::cf::_safe_eval_args = values %vars;
2249		3455
2250	my $eval =	3456	my $eval =
2251	"do {\n"	3457	"do {\n"
2252	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2253	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
2254	. $code	3460	. $code
2255	. "\n}"	3461	. "\n}"
2256	;	3462	;
2257		3463
		3464	if ($CFG{safe_eval}) {
2258	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
2259	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2260	sub_generation_inc;	3468	sub_generation_inc;
		3469	} else {
		3470	local @cf::_safe_eval_args = values %vars;
		3471	@res = wantarray ? eval eval : scalar eval $eval;
		3472	}
2261		3473
2262	if ($@) {	3474	if ($@) {
2263	warn "$@";	3475	warn "$@",
2264	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
2265	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
2266	}	3478	}
2267		3479
2268	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
2269	}	3481	}
2270		3482
…		…
2284	=cut	3496	=cut
2285		3497
2286	sub register_script_function {	3498	sub register_script_function {
2287	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
2288		3500
2289	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
2290	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
2291	}	3503	}
2292		3504
2293	=back	3505	=back
2294		3506
2295	=cut	3507	=cut
2296
2297	#############################################################################
2298
2299	=head2 EXTENSION DATABASE SUPPORT
2300
2301	Crossfire maintains a very simple database for extension use. It can
2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2303	convert to/from binary).
2304
2305	The parameter C<$family> should best start with the name of the extension
2306	using it, it should be unique.
2307
2308	=over 4
2309
2310	=item $value = cf::db_get $family => $key
2311
2312	Returns a single value from the database.
2313
2314	=item cf::db_put $family => $key => $value
2315
2316	Stores the given C<$value> in the family.
2317
2318	=cut
2319
2320	our $DB;
2321
2322	sub db_init {
2323	unless ($DB) {
2324	$DB = BDB::db_create $DB_ENV;
2325
2326	cf::sync_job {
2327	eval {
2328	$DB->set_flags (BDB::CHKSUM);
2329
2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2332	cf::cleanup "db_open(db): $!" if $!;
2333	};
2334	cf::cleanup "db_open(db): $@" if $@;
2335	};
2336	}
2337	}
2338
2339	sub db_get($$) {
2340	my $key = "$_[0]/$_[1]";
2341
2342	cf::sync_job {
2343	BDB::db_get $DB, undef, $key, my $data;
2344
2345	$! ? ()
2346	: $data
2347	}
2348	}
2349
2350	sub db_put($$$) {
2351	BDB::dbreq_pri 4;
2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2353	}
2354
2355	=item cf::cache $id => [$paths...], $processversion => $process
2356
2357	Generic caching function that returns the value of the resource $id,
2358	caching and regenerating as required.
2359
2360	This function can block.
2361
2362	=cut
2363
2364	sub cache {
2365	my ($id, $src, $processversion, $process) = @_;
2366
2367	my $meta =
2368	join "\x00",
2369	$processversion,
2370	map {
2371	aio_stat $_
2372	and Carp::croak "$_: $!";
2373
2374	($_, (stat _)[7,9])
2375	} @$src;
2376
2377	my $dbmeta = db_get cache => "$id/meta";
2378	if ($dbmeta ne $meta) {
2379	# changed, we may need to process
2380
2381	my @data;
2382	my $md5;
2383
2384	for (0 .. $#$src) {
2385	0 <= aio_load $src->[$_], $data[$_]
2386	or Carp::croak "$src->[$_]: $!";
2387	}
2388
2389	# if processing is expensive, check
2390	# checksum first
2391	if (1) {
2392	$md5 =
2393	join "\x00",
2394	$processversion,
2395	map {
2396	Coro::cede;
2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
2398	} 0.. $#$src;
2399
2400
2401	my $dbmd5 = db_get cache => "$id/md5";
2402	if ($dbmd5 eq $md5) {
2403	db_put cache => "$id/meta", $meta;
2404
2405	return db_get cache => "$id/data";
2406	}
2407	}
2408
2409	my $t1 = Time::HiRes::time;
2410	my $data = $process->(\@data);
2411	my $t2 = Time::HiRes::time;
2412
2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2414
2415	db_put cache => "$id/data", $data;
2416	db_put cache => "$id/md5" , $md5;
2417	db_put cache => "$id/meta", $meta;
2418
2419	return $data;
2420	}
2421
2422	db_get cache => "$id/data"
2423	}
2424
2425	=item fork_call { }, $args
2426
2427	Executes the given code block with the given arguments in a seperate
2428	process, returning the results. Everything must be serialisable with
2429	Coro::Storable. May, of course, block. Note that the executed sub may
2430	never block itself or use any form of Event handling.
2431
2432	=cut
2433
2434	sub fork_call(&@) {
2435	my ($cb, @args) = @_;
2436
2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2438	# or die "socketpair: $!";
2439	pipe my $fh1, my $fh2
2440	or die "pipe: $!";
2441
2442	if (my $pid = fork) {
2443	close $fh2;
2444
2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2446	$res = Coro::Storable::thaw $res;
2447
2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2449
2450	die $$res unless "ARRAY" eq ref $res;
2451
2452	return wantarray ? @$res : $res->[-1];
2453	} else {
2454	reset_signals;
2455	local $SIG{__WARN__};
2456	local $SIG{__DIE__};
2457	eval {
2458	close $fh1;
2459
2460	my @res = eval { $cb->(@args) };
2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2462	};
2463
2464	warn $@ if $@;
2465	_exit 0;
2466	}
2467	}
2468
2469
2470		3508
2471	#############################################################################	3509	#############################################################################
2472	# the server's init and main functions	3510	# the server's init and main functions
2473		3511
		3512	our %FACEHASH; # hash => idx, #d# HACK for http server
		3513
2474	sub load_facedata($) {	3514	sub load_facedata($) {
2475	my ($path) = @_;	3515	my ($path) = @_;
2476		3516
		3517	# HACK to clear player env face cache, we need some signal framework
		3518	# for this (global event?)
		3519	%ext::player_env::MUSIC_FACE_CACHE = ();
		3520
		3521	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3522
2477	warn "loading facedata from $path\n";	3523	trace "loading facedata from $path\n";
2478		3524
2479	my $facedata;	3525	my $facedata = decode_storable load_file $path;
2480	0 < aio_load $path, $facedata
2481	or die "$path: $!";
2482
2483	$facedata = Coro::Storable::thaw $facedata;
2484		3526
2485	$facedata->{version} == 2	3527	$facedata->{version} == 2
2486	or cf::cleanup "$path: version mismatch, cannot proceed.";	3528	or cf::cleanup "$path: version mismatch, cannot proceed.";
2487		3529
		3530	# patch in the exptable
		3531	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3532	$facedata->{resource}{"res/exp_table"} = {
		3533	type => FT_RSRC,
		3534	data => $exp_table,
		3535	hash => (Digest::MD5::md5 $exp_table),
		3536	};
		3537	cf::cede_to_tick;
		3538
2488	{	3539	{
2489	my $faces = $facedata->{faceinfo};	3540	my $faces = $facedata->{faceinfo};
2490		3541
2491	while (my ($face, $info) = each %$faces) {	3542	for my $face (sort keys %$faces) {
		3543	my $info = $faces->{$face};
2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3544	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3545
2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3546	cf::face::set_visibility $idx, $info->{visibility};
		3547	cf::face::set_magicmap $idx, $info->{magicmap};
2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3548	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3549	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2496	Coro::cede;	3550	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3551	$FACEHASH{$info->{hash64}} = $idx;#d#
		3552
		3553	cf::cede_to_tick;
2497	}	3554	}
2498		3555
2499	while (my ($face, $info) = each %$faces) {	3556	while (my ($face, $info) = each %$faces) {
2500	next unless $info->{smooth};	3557	next unless $info->{smooth};
		3558
2501	my $idx = cf::face::find $face	3559	my $idx = cf::face::find $face
2502	or next;	3560	or next;
		3561
2503	if (my $smooth = cf::face::find $info->{smooth}) {	3562	if (my $smooth = cf::face::find $info->{smooth}) {
		3563	cf::face::set_smooth $idx, $smooth;
2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3564	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2505	} else {	3565	} else {
2506	warn "smooth face '$info->{smooth}' not found for face '$face'";	3566	error "smooth face '$info->{smooth}' not found for face '$face'";
2507	}	3567	}
2508	Coro::cede;	3568
		3569	cf::cede_to_tick;
2509	}	3570	}
2510	}	3571	}
2511		3572
2512	{	3573	{
2513	my $anims = $facedata->{animinfo};	3574	my $anims = $facedata->{animinfo};
2514		3575
2515	while (my ($anim, $info) = each %$anims) {	3576	while (my ($anim, $info) = each %$anims) {
2516	cf::anim::set $anim, $info->{frames}, $info->{facings};	3577	cf::anim::set $anim, $info->{frames}, $info->{facings};
2517	Coro::cede;	3578	cf::cede_to_tick;
2518	}	3579	}
2519		3580
2520	cf::anim::invalidate_all; # d'oh	3581	cf::anim::invalidate_all; # d'oh
2521	}	3582	}
2522		3583
		3584	{
		3585	my $res = $facedata->{resource};
		3586
		3587	while (my ($name, $info) = each %$res) {
		3588	if (defined (my $type = $info->{type})) {
		3589	# TODO: different hash - must free and use new index, or cache ixface data queue
		3590	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3591
		3592	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3593	cf::face::set_type $idx, $type;
		3594	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3595	$FACEHASH{$info->{hash}} = $idx;#d#
		3596	} else {
		3597	# $RESOURCE{$name} = $info; # unused
		3598	}
		3599
		3600	cf::cede_to_tick;
		3601	}
		3602	}
		3603
		3604	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3605
2523	1	3606	1
2524	}	3607	}
2525		3608
		3609	register_exticmd fx_want => sub {
		3610	my ($ns, $want) = @_;
		3611
		3612	while (my ($k, $v) = each %$want) {
		3613	$ns->fx_want ($k, $v);
		3614	}
		3615	};
		3616
		3617	sub load_resource_file($) {
		3618	my $guard = lock_acquire "load_resource_file";
		3619
		3620	my $status = load_resource_file_ $_[0];
		3621	get_slot 0.1, 100;
		3622	cf::arch::commit_load;
		3623
		3624	$status
		3625	}
		3626
2526	sub reload_regions {	3627	sub reload_regions {
		3628	# HACK to clear player env face cache, we need some signal framework
		3629	# for this (global event?)
		3630	%ext::player_env::MUSIC_FACE_CACHE = ();
		3631
2527	load_resource_file "$MAPDIR/regions"	3632	load_resource_file "$MAPDIR/regions"
2528	or die "unable to load regions file\n";	3633	or die "unable to load regions file\n";
		3634
		3635	for (cf::region::list) {
		3636	$_->{match} = qr/$_->{match}/
		3637	if exists $_->{match};
		3638	}
2529	}	3639	}
2530		3640
2531	sub reload_facedata {	3641	sub reload_facedata {
2532	load_facedata "$DATADIR/facedata"	3642	load_facedata "$DATADIR/facedata"
2533	or die "unable to load facedata\n";	3643	or die "unable to load facedata\n";
…		…
2541	sub reload_treasures {	3651	sub reload_treasures {
2542	load_resource_file "$DATADIR/treasures"	3652	load_resource_file "$DATADIR/treasures"
2543	or die "unable to load treasurelists\n";	3653	or die "unable to load treasurelists\n";
2544	}	3654	}
2545		3655
		3656	sub reload_sound {
		3657	trace "loading sound config from $DATADIR/sound\n";
		3658
		3659	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3660
		3661	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3662	my $sound = $soundconf->{compat}[$_]
		3663	or next;
		3664
		3665	my $face = cf::face::find "sound/$sound->[1]";
		3666	cf::sound::set $sound->[0] => $face;
		3667	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3668	}
		3669
		3670	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3671	my $face = cf::face::find "sound/$v";
		3672	cf::sound::set $k => $face;
		3673	}
		3674	}
		3675
2546	sub reload_resources {	3676	sub reload_resources {
2547	warn "reloading resource files...\n";	3677	trace "reloading resource files...\n";
2548		3678
		3679	reload_exp_table;
		3680	reload_materials;
		3681	reload_facedata;
		3682	reload_sound;
		3683	reload_archetypes;
2549	reload_regions;	3684	reload_regions;
2550	reload_facedata;
2551	reload_archetypes;
2552	reload_treasures;	3685	reload_treasures;
2553		3686
2554	warn "finished reloading resource files\n";	3687	trace "finished reloading resource files\n";
2555	}	3688	}
2556		3689
2557	sub init {	3690	sub reload_config {
2558	reload_resources;	3691	trace "reloading config file...\n";
2559	}
2560		3692
2561	sub cfg_load {	3693	my $config = load_file "$CONFDIR/config";
2562	open my $fh, "<:utf8", "$CONFDIR/config"	3694	utf8::decode $config;
2563	or return;	3695	*CFG = decode_yaml $config;
2564		3696
2565	local $/;
2566	*CFG = YAML::Syck::Load <$fh>;
2567
2568	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3697	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2569		3698
2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3699	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3700	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2572		3701
2573	if (exists $CFG{mlockall}) {	3702	if (exists $CFG{mlockall}) {
…		…
2577	};	3706	};
2578	warn $@ if $@;	3707	warn $@ if $@;
2579	}	3708	}
2580	}	3709	}
2581		3710
		3711	sub pidfile() {
		3712	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3713	or die "$PIDFILE: $!";
		3714	flock $fh, &Fcntl::LOCK_EX
		3715	or die "$PIDFILE: flock: $!";
		3716	$fh
		3717	}
		3718
		3719	# make sure only one server instance is running at any one time
		3720	sub atomic {
		3721	my $fh = pidfile;
		3722
		3723	my $pid = <$fh>;
		3724	kill 9, $pid if $pid > 0;
		3725
		3726	seek $fh, 0, 0;
		3727	print $fh $$;
		3728	}
		3729
		3730	sub main_loop {
		3731	trace "EV::loop starting\n";
		3732	if (1) {
		3733	EV::loop;
		3734	}
		3735	trace "EV::loop returned\n";
		3736	goto &main_loop unless $REALLY_UNLOOP;
		3737	}
		3738
2582	sub main {	3739	sub main {
		3740	cf::init_globals; # initialise logging
		3741
		3742	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3743	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3744	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3745	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3746
		3747	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3748
2583	# we must not ever block the main coroutine	3749	# we must not ever block the main coroutine
2584	local $Coro::idle = sub {	3750	$Coro::idle = sub {
2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3751	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2586	(async {	3752	(async {
2587	Event::one_event;	3753	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3754	EV::loop EV::LOOP_ONESHOT;
2588	})->prio (Coro::PRIO_MAX);	3755	})->prio (Coro::PRIO_MAX);
2589	};	3756	};
2590		3757
2591	cfg_load;	3758	evthread_start IO::AIO::poll_fileno;
		3759
		3760	cf::sync_job {
		3761	cf::incloader::init ();
		3762
		3763	cf::init_anim;
		3764	cf::init_attackmess;
		3765	cf::init_dynamic;
		3766
		3767	cf::load_settings;
		3768
		3769	reload_resources;
		3770	reload_config;
2592	db_init;	3771	db_init;
		3772
		3773	cf::init_uuid;
		3774	cf::init_signals;
		3775	cf::init_skills;
		3776
		3777	cf::init_beforeplay;
		3778
		3779	atomic;
		3780
2593	load_extensions;	3781	load_extensions;
2594		3782
2595	$TICK_WATCHER->start;	3783	utime time, time, $RUNTIMEFILE;
2596	Event::loop;	3784
		3785	# no (long-running) fork's whatsoever before this point(!)
		3786	use POSIX ();
		3787	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3788
		3789	cf::_post_init 0;
		3790	};
		3791
		3792	cf::object::thawer::errors_are_fatal 0;
		3793	info "parse errors in files are no longer fatal from this point on.\n";
		3794
		3795	AE::postpone {
		3796	undef &main; # free gobs of memory :)
		3797	};
		3798
		3799	goto &main_loop;
2597	}	3800	}
2598		3801
2599	#############################################################################	3802	#############################################################################
2600	# initialisation and cleanup	3803	# initialisation and cleanup
2601		3804
2602	# install some emergency cleanup handlers	3805	# install some emergency cleanup handlers
2603	BEGIN {	3806	BEGIN {
		3807	our %SIGWATCHER = ();
2604	for my $signal (qw(INT HUP TERM)) {	3808	for my $signal (qw(INT HUP TERM)) {
2605	Event->signal (	3809	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2606	reentrant => 0,
2607	data => WF_AUTOCANCEL,
2608	signal => $signal,
2609	prio => 0,
2610	cb => sub {
2611	cf::cleanup "SIG$signal";	3810	cf::cleanup "SIG$signal";
2612	},
2613	);	3811	};
		3812	}
		3813	}
		3814
		3815	sub write_runtime_sync {
		3816	my $t0 = AE::time;
		3817
		3818	# first touch the runtime file to show we are still running:
		3819	# the fsync below can take a very very long time.
		3820
		3821	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3822
		3823	my $guard = cf::lock_acquire "write_runtime";
		3824
		3825	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3826	or return;
		3827
		3828	my $value = $cf::RUNTIME + 90 + 10;
		3829	# 10 is the runtime save interval, for a monotonic clock
		3830	# 60 allows for the watchdog to kill the server.
		3831
		3832	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3833	and return;
		3834
		3835	# always fsync - this file is important
		3836	aio_fsync $fh
		3837	and return;
		3838
		3839	# touch it again to show we are up-to-date
		3840	aio_utime $fh, undef, undef;
		3841
		3842	close $fh
		3843	or return;
		3844
		3845	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3846	and return;
		3847
		3848	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3849
2614	}	3850	1
		3851	}
		3852
		3853	our $uuid_lock;
		3854	our $uuid_skip;
		3855
		3856	sub write_uuid_sync($) {
		3857	$uuid_skip ||= $_[0];
		3858
		3859	return if $uuid_lock;
		3860	local $uuid_lock = 1;
		3861
		3862	my $uuid = "$LOCALDIR/uuid";
		3863
		3864	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3865	or return;
		3866
		3867	my $value = uuid_seq uuid_cur;
		3868
		3869	unless ($value) {
		3870	info "cowardly refusing to write zero uuid value!\n";
		3871	return;
		3872	}
		3873
		3874	my $value = uuid_str $value + $uuid_skip;
		3875	$uuid_skip = 0;
		3876
		3877	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3878	and return;
		3879
		3880	# always fsync - this file is important
		3881	aio_fsync $fh
		3882	and return;
		3883
		3884	close $fh
		3885	or return;
		3886
		3887	aio_rename "$uuid~", $uuid
		3888	and return;
		3889
		3890	trace "uuid file written ($value).\n";
		3891
		3892	1
		3893
		3894	}
		3895
		3896	sub write_uuid($$) {
		3897	my ($skip, $sync) = @_;
		3898
		3899	$sync ? write_uuid_sync $skip
		3900	: async { write_uuid_sync $skip };
2615	}	3901	}
2616		3902
2617	sub emergency_save() {	3903	sub emergency_save() {
2618	my $freeze_guard = cf::freeze_mainloop;	3904	my $freeze_guard = cf::freeze_mainloop;
2619		3905
2620	warn "enter emergency perl save\n";	3906	info "emergency_perl_save: enter\n";
		3907
		3908	# this is a trade-off: we want to be very quick here, so
		3909	# save all maps without fsync, and later call a global sync
		3910	# (which in turn might be very very slow)
		3911	local $USE_FSYNC = 0;
2621		3912
2622	cf::sync_job {	3913	cf::sync_job {
		3914	cf::write_runtime_sync; # external watchdog should not bark
		3915
2623	# use a peculiar iteration method to avoid tripping on perl	3916	# use a peculiar iteration method to avoid tripping on perl
2624	# refcount bugs in for. also avoids problems with players	3917	# refcount bugs in for. also avoids problems with players
2625	# and maps saved/destroyed asynchronously.	3918	# and maps saved/destroyed asynchronously.
2626	warn "begin emergency player save\n";	3919	info "emergency_perl_save: begin player save\n";
2627	for my $login (keys %cf::PLAYER) {	3920	for my $login (keys %cf::PLAYER) {
2628	my $pl = $cf::PLAYER{$login} or next;	3921	my $pl = $cf::PLAYER{$login} or next;
2629	$pl->valid or next;	3922	$pl->valid or next;
		3923	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2630	$pl->save;	3924	$pl->save;
2631	}	3925	}
2632	warn "end emergency player save\n";	3926	info "emergency_perl_save: end player save\n";
2633		3927
2634	warn "begin emergency map save\n";	3928	cf::write_runtime_sync; # external watchdog should not bark
		3929
		3930	info "emergency_perl_save: begin map save\n";
2635	for my $path (keys %cf::MAP) {	3931	for my $path (keys %cf::MAP) {
2636	my $map = $cf::MAP{$path} or next;	3932	my $map = $cf::MAP{$path} or next;
2637	$map->valid or next;	3933	$map->valid or next;
2638	$map->save;	3934	$map->save;
2639	}	3935	}
2640	warn "end emergency map save\n";	3936	info "emergency_perl_save: end map save\n";
2641		3937
2642	warn "begin emergency database checkpoint\n";	3938	cf::write_runtime_sync; # external watchdog should not bark
		3939
		3940	info "emergency_perl_save: begin database checkpoint\n";
2643	BDB::db_env_txn_checkpoint $DB_ENV;	3941	BDB::db_env_txn_checkpoint $DB_ENV;
2644	warn "end emergency database checkpoint\n";	3942	info "emergency_perl_save: end database checkpoint\n";
		3943
		3944	info "emergency_perl_save: begin write uuid\n";
		3945	write_uuid_sync 1;
		3946	info "emergency_perl_save: end write uuid\n";
		3947
		3948	cf::write_runtime_sync; # external watchdog should not bark
		3949
		3950	trace "emergency_perl_save: syncing database to disk";
		3951	BDB::db_env_txn_checkpoint $DB_ENV;
		3952
		3953	info "emergency_perl_save: starting sync\n";
		3954	IO::AIO::aio_sync sub {
		3955	info "emergency_perl_save: finished sync\n";
		3956	};
		3957
		3958	cf::write_runtime_sync; # external watchdog should not bark
		3959
		3960	trace "emergency_perl_save: flushing outstanding aio requests";
		3961	while (IO::AIO::nreqs || BDB::nreqs) {
		3962	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3963	}
		3964
		3965	cf::write_runtime_sync; # external watchdog should not bark
2645	};	3966	};
2646		3967
2647	warn "leave emergency perl save\n";	3968	info "emergency_perl_save: leave\n";
2648	}	3969	}
2649		3970
2650	sub post_cleanup {	3971	sub post_cleanup {
2651	my ($make_core) = @_;	3972	my ($make_core) = @_;
2652		3973
		3974	IO::AIO::flush;
		3975
2653	warn Carp::longmess "post_cleanup backtrace"	3976	error Carp::longmess "post_cleanup backtrace"
2654	if $make_core;	3977	if $make_core;
		3978
		3979	my $fh = pidfile;
		3980	unlink $PIDFILE if <$fh> == $$;
		3981	}
		3982
		3983	# a safer delete_package, copied from Symbol
		3984	sub clear_package($) {
		3985	my $pkg = shift;
		3986
		3987	# expand to full symbol table name if needed
		3988	unless ($pkg =~ /^main::.*::$/) {
		3989	$pkg = "main$pkg" if $pkg =~ /^::/;
		3990	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3991	$pkg .= '::' unless $pkg =~ /::$/;
		3992	}
		3993
		3994	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3995	my $stem_symtab = *{$stem}{HASH};
		3996
		3997	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3998	or return;
		3999
		4000	# clear all symbols
		4001	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4002	for my $name (keys %$leaf_symtab) {
		4003	_gv_clear *{"$pkg$name"};
		4004	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4005	}
2655	}	4006	}
2656		4007
2657	sub do_reload_perl() {	4008	sub do_reload_perl() {
2658	# can/must only be called in main	4009	# can/must only be called in main
2659	if ($Coro::current != $Coro::main) {	4010	unless (in_main) {
2660	warn "can only reload from main coroutine";	4011	error "can only reload from main coroutine";
2661	return;	4012	return;
2662	}	4013	}
2663		4014
2664	warn "reloading...";	4015	return if $RELOAD++;
2665		4016
2666	warn "entering sync_job";	4017	my $t1 = AE::time;
2667		4018
		4019	while ($RELOAD) {
		4020	cf::get_slot 0.1, -1, "reload_perl";
		4021	info "perl_reload: reloading...";
		4022
		4023	trace "perl_reload: entering sync_job";
		4024
2668	cf::sync_job {	4025	cf::sync_job {
2669	cf::write_runtime; # external watchdog should not bark
2670	cf::emergency_save;	4026	#cf::emergency_save;
2671	cf::write_runtime; # external watchdog should not bark
2672		4027
2673	warn "syncing database to disk";
2674	BDB::db_env_txn_checkpoint $DB_ENV;
2675
2676	# if anything goes wrong in here, we should simply crash as we already saved
2677
2678	warn "cancelling all WF_AUTOCANCEL watchers";
2679	for (Event::all_watchers) {
2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2681	}
2682
2683	warn "flushing outstanding aio requests";
2684	for (;;) {
2685	BDB::flush;
2686	IO::AIO::flush;
2687	Coro::cede;
2688	last unless IO::AIO::nreqs || BDB::nreqs;
2689	warn "iterate...";
2690	}
2691
2692	++$RELOAD;
2693
2694	warn "cancelling all extension coros";	4028	trace "perl_reload: cancelling all extension coros";
2695	$_->cancel for values %EXT_CORO;	4029	$_->cancel for values %EXT_CORO;
2696	%EXT_CORO = ();	4030	%EXT_CORO = ();
2697		4031
2698	warn "removing commands";	4032	trace "perl_reload: removing commands";
2699	%COMMAND = ();	4033	%COMMAND = ();
2700		4034
2701	warn "removing ext commands";	4035	trace "perl_reload: removing ext/exti commands";
2702	%EXTCMD = ();	4036	%EXTCMD = ();
		4037	%EXTICMD = ();
2703		4038
2704	warn "unloading/nuking all extensions";	4039	trace "perl_reload: unloading/nuking all extensions";
2705	for my $pkg (@EXTS) {	4040	for my $pkg (@EXTS) {
2706	warn "... unloading $pkg";	4041	trace "... unloading $pkg";
2707		4042
2708	if (my $cb = $pkg->can ("unload")) {	4043	if (my $cb = $pkg->can ("unload")) {
2709	eval {	4044	eval {
2710	$cb->($pkg);	4045	$cb->($pkg);
2711	1	4046	1
2712	} or warn "$pkg unloaded, but with errors: $@";	4047	} or error "$pkg unloaded, but with errors: $@";
		4048	}
		4049
		4050	trace "... clearing $pkg";
		4051	clear_package $pkg;
2713	}	4052	}
2714		4053
2715	warn "... nuking $pkg";
2716	Symbol::delete_package $pkg;
2717	}
2718
2719	warn "unloading all perl modules loaded from $LIBDIR";	4054	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2720	while (my ($k, $v) = each %INC) {	4055	while (my ($k, $v) = each %INC) {
2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2722		4057
2723	warn "... unloading $k";	4058	trace "... unloading $k";
2724	delete $INC{$k};	4059	delete $INC{$k};
2725		4060
2726	$k =~ s/\.pm$//;	4061	$k =~ s/\.pm$//;
2727	$k =~ s/\//::/g;	4062	$k =~ s/\//::/g;
2728		4063
2729	if (my $cb = $k->can ("unload_module")) {	4064	if (my $cb = $k->can ("unload_module")) {
2730	$cb->();	4065	$cb->();
		4066	}
		4067
		4068	clear_package $k;
2731	}	4069	}
2732		4070
2733	Symbol::delete_package $k;
2734	}
2735
2736	warn "getting rid of safe::, as good as possible";	4071	trace "perl_reload: getting rid of safe::, as good as possible";
2737	Symbol::delete_package "safe::$_"	4072	clear_package "safe::$_"
2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4073	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2739		4074
2740	warn "unloading cf.pm \"a bit\"";	4075	trace "perl_reload: unloading cf.pm \"a bit\"";
2741	delete $INC{"cf.pm"};	4076	delete $INC{"cf.pm"};
2742	delete $INC{"cf/pod.pm"};	4077	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2743		4078
2744	# don't, removes xs symbols, too,	4079	# don't, removes xs symbols, too,
2745	# and global variables created in xs	4080	# and global variables created in xs
2746	#Symbol::delete_package __PACKAGE__;	4081	#clear_package __PACKAGE__;
2747		4082
2748	warn "unload completed, starting to reload now";	4083	info "perl_reload: unload completed, starting to reload now";
2749		4084
2750	warn "reloading cf.pm";	4085	trace "perl_reload: reloading cf.pm";
2751	require cf;	4086	require cf;
2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4087	cf::_connect_to_perl_1;
2753		4088
2754	warn "loading config and database again";	4089	trace "perl_reload: loading config and database again";
2755	cf::cfg_load;	4090	cf::reload_config;
2756		4091
2757	warn "loading extensions";	4092	trace "perl_reload: loading extensions";
2758	cf::load_extensions;	4093	cf::load_extensions;
2759		4094
		4095	if ($REATTACH_ON_RELOAD) {
2760	warn "reattaching attachments to objects/players";	4096	trace "perl_reload: reattaching attachments to objects/players";
2761	_global_reattach; # objects, sockets	4097	_global_reattach; # objects, sockets
2762	warn "reattaching attachments to maps";	4098	trace "perl_reload: reattaching attachments to maps";
2763	reattach $_ for values %MAP;	4099	reattach $_ for values %MAP;
2764	warn "reattaching attachments to players";	4100	trace "perl_reload: reattaching attachments to players";
2765	reattach $_ for values %PLAYER;	4101	reattach $_ for values %PLAYER;
		4102	}
2766		4103
2767	warn "leaving sync_job";	4104	cf::_post_init 1;
2768		4105
		4106	trace "perl_reload: leaving sync_job";
		4107
2769	1	4108	1
2770	} or do {	4109	} or do {
2771	warn $@;	4110	error $@;
2772	warn "error while reloading, exiting.";	4111	cf::cleanup "perl_reload: error, exiting.";
2773	exit 1;	4112	};
		4113
		4114	--$RELOAD;
2774	};	4115	}
2775		4116
2776	warn "reloaded";	4117	$t1 = AE::time - $t1;
		4118	info "perl_reload: completed in ${t1}s\n";
2777	};	4119	};
2778		4120
2779	our $RELOAD_WATCHER; # used only during reload	4121	our $RELOAD_WATCHER; # used only during reload
2780		4122
2781	sub reload_perl() {	4123	sub reload_perl() {
2782	# doing reload synchronously and two reloads happen back-to-back,	4124	# doing reload synchronously and two reloads happen back-to-back,
2783	# coro crashes during coro_state_free->destroy here.	4125	# coro crashes during coro_state_free->destroy here.
2784		4126
2785	$RELOAD_WATCHER ||= Event->timer (	4127	$RELOAD_WATCHER ||= cf::async {
2786	reentrant => 0,	4128	Coro::AIO::aio_wait cache_extensions;
2787	after => 0,	4129
2788	data => WF_AUTOCANCEL,	4130	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2789	cb => sub {
2790	do_reload_perl;	4131	do_reload_perl;
2791	undef $RELOAD_WATCHER;	4132	undef $RELOAD_WATCHER;
2792	},	4133	};
2793	);	4134	};
2794	}	4135	}
2795		4136
2796	register_command "reload" => sub {	4137	register_command "reload" => sub {
2797	my ($who, $arg) = @_;	4138	my ($who, $arg) = @_;
2798		4139
2799	if ($who->flag (FLAG_WIZ)) {	4140	if ($who->flag (FLAG_WIZ)) {
2800	$who->message ("reloading server.");	4141	$who->message ("reloading server.");
		4142	async {
		4143	$Coro::current->{desc} = "perl_reload";
2801	async { reload_perl };	4144	reload_perl;
		4145	};
2802	}	4146	}
2803	};	4147	};
2804		4148
2805	unshift @INC, $LIBDIR;	4149	#############################################################################
2806		4150
2807	my $bug_warning = 0;	4151	my $bug_warning = 0;
2808		4152
2809	our @WAIT_FOR_TICK;
2810	our @WAIT_FOR_TICK_BEGIN;
2811
2812	sub wait_for_tick {	4153	sub wait_for_tick() {
2813	return unless $TICK_WATCHER->is_active;	4154	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2814	return if $Coro::current == $Coro::main;
2815		4155
2816	my $signal = new Coro::Signal;	4156	$WAIT_FOR_TICK->wait;
2817	push @WAIT_FOR_TICK, $signal;
2818	$signal->wait;
2819	}	4157	}
2820		4158
2821	sub wait_for_tick_begin {	4159	sub wait_for_tick_begin() {
2822	return unless $TICK_WATCHER->is_active;	4160	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2823	return if $Coro::current == $Coro::main;
2824		4161
2825	my $signal = new Coro::Signal;	4162	my $signal = new Coro::Signal;
2826	push @WAIT_FOR_TICK_BEGIN, $signal;	4163	push @WAIT_FOR_TICK_BEGIN, $signal;
2827	$signal->wait;	4164	$signal->wait;
2828	}	4165	}
2829		4166
2830	$TICK_WATCHER = Event->timer (	4167	sub tick {
2831	reentrant => 0,
2832	parked => 1,
2833	prio => 0,
2834	at => $NEXT_TICK || $TICK,
2835	data => WF_AUTOCANCEL,
2836	cb => sub {
2837	if ($Coro::current != $Coro::main) {	4168	if ($Coro::current != $Coro::main) {
2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4169	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2839	unless ++$bug_warning > 10;	4170	unless ++$bug_warning > 10;
2840	return;	4171	return;
2841	}	4172	}
2842		4173
2843	$NOW = Event::time;	4174	cf::one_tick; # one server iteration
2844		4175
2845	cf::server_tick; # one server iteration	4176	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2846		4177
2847	$RUNTIME += $TICK;
2848	$NEXT_TICK += $TICK;
2849
2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4178	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2851	$NEXT_RUNTIME_WRITE = $NOW + 10;	4179	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2852	Coro::async_pool {	4180	Coro::async_pool {
		4181	$Coro::current->{desc} = "runtime saver";
2853	write_runtime	4182	write_runtime_sync
2854	or warn "ERROR: unable to write runtime file: $!";	4183	or error "ERROR: unable to write runtime file: $!";
2855	};
2856	}	4184	};
		4185	}
2857		4186
2858	# my $AFTER = Event::time;
2859	# warn $AFTER - $NOW;#d#
2860
2861	# if we are delayed by four ticks or more, skip them all
2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2863
2864	$TICK_WATCHER->at ($NEXT_TICK);
2865	$TICK_WATCHER->start;
2866
2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4187	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2868	$sig->send;	4188	$sig->send;
2869	}
2870	while (my $sig = shift @WAIT_FOR_TICK) {
2871	$sig->send;
2872	}
2873
2874	_post_tick;
2875	},	4189	}
2876	);	4190	$WAIT_FOR_TICK->broadcast;
		4191
		4192	$LOAD = ($NOW - $TICK_START) / $TICK;
		4193	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4194
		4195	if (0) {
		4196	if ($NEXT_TICK) {
		4197	my $jitter = $TICK_START - $NEXT_TICK;
		4198	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4199	debug "jitter $JITTER\n";#d#
		4200	}
		4201	}
		4202	}
2877		4203
2878	{	4204	{
2879	BDB::max_poll_time $TICK * 0.1;	4205	# configure BDB
2880	$BDB_POLL_WATCHER = Event->io (	4206
2881	reentrant => 0,
2882	fd => BDB::poll_fileno,
2883	poll => 'r',
2884	prio => 0,
2885	data => WF_AUTOCANCEL,
2886	cb => \&BDB::poll_cb,
2887	);
2888	BDB::min_parallel 8;	4207	BDB::min_parallel 16;
2889		4208	BDB::max_poll_reqs $TICK * 0.1;
2890	BDB::set_sync_prepare {	4209	#$AnyEvent::BDB::WATCHER->priority (1);
2891	my $status;
2892	my $current = $Coro::current;
2893	(
2894	sub {
2895	$status = $!;
2896	$current->ready; undef $current;
2897	},
2898	sub {
2899	Coro::schedule while defined $current;
2900	$! = $status;
2901	},
2902	)
2903	};
2904		4210
2905	unless ($DB_ENV) {	4211	unless ($DB_ENV) {
2906	$DB_ENV = BDB::db_env_create;	4212	$DB_ENV = BDB::db_env_create;
		4213	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4214	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4215	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4216	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4217	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2907		4218
2908	cf::sync_job {	4219	cf::sync_job {
2909	eval {	4220	eval {
2910	BDB::db_env_open	4221	BDB::db_env_open
2911	$DB_ENV,	4222	$DB_ENV,
…		…
2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4224	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4225	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2915	0666;	4226	0666;
2916		4227
2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4228	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2918
2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2920	$DB_ENV->set_lk_detect;
2921	};	4229	};
2922		4230
2923	cf::cleanup "db_env_open(db): $@" if $@;	4231	cf::cleanup "db_env_open(db): $@" if $@;
2924	};	4232	};
2925	}	4233	}
		4234
		4235	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4236	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4237	};
		4238	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4239	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4240	};
		4241	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4242	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4243	};
2926	}	4244	}
2927		4245
2928	{	4246	{
		4247	# configure IO::AIO
		4248
2929	IO::AIO::min_parallel 8;	4249	IO::AIO::min_parallel 8;
2930
2931	undef $Coro::AIO::WATCHER;
2932	IO::AIO::max_poll_time $TICK * 0.1;	4250	IO::AIO::max_poll_time $TICK * 0.1;
2933	$AIO_POLL_WATCHER = Event->io (	4251	undef $AnyEvent::AIO::WATCHER;
2934	reentrant => 0,
2935	data => WF_AUTOCANCEL,
2936	fd => IO::AIO::poll_fileno,
2937	poll => 'r',
2938	prio => 6,
2939	cb => \&IO::AIO::poll_cb,
2940	);
2941	}	4252	}
2942		4253
2943	my $_log_backtrace;	4254	our $_log_backtrace;
		4255	our $_log_backtrace_last;
2944		4256
2945	sub _log_backtrace {	4257	sub _log_backtrace {
2946	my ($msg, @addr) = @_;	4258	my ($msg, @addr) = @_;
2947		4259
2948	$msg =~ s/\n//;	4260	$msg =~ s/\n$//;
2949		4261
		4262	if ($_log_backtrace_last eq $msg) {
		4263	LOG llevInfo, "[ABT] $msg\n";
		4264	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
2950	# limit the # of concurrent backtraces	4265	# limit the # of concurrent backtraces
2951	if ($_log_backtrace < 2) {	4266	} elsif ($_log_backtrace < 2) {
		4267	$_log_backtrace_last = $msg;
2952	++$_log_backtrace;	4268	++$_log_backtrace;
		4269	my $perl_bt = Carp::longmess $msg;
2953	async {	4270	async {
		4271	$Coro::current->{desc} = "abt $msg";
		4272
2954	my @bt = fork_call {	4273	my @bt = fork_call {
2955	@addr = map { sprintf "%x", $_ } @addr;	4274	@addr = map { sprintf "%x", $_ } @addr;
2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4275	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4276	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2958	or die "addr2line: $!";	4277	or die "addr2line: $!";
…		…
2966	}	4285	}
2967		4286
2968	@funcs	4287	@funcs
2969	};	4288	};
2970		4289
2971	LOG llevInfo, "[ABT] $msg\n";	4290	LOG llevInfo, "[ABT] $perl_bt\n";
		4291	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
2972	LOG llevInfo, "[ABT] $_\n" for @bt;	4292	LOG llevInfo, "[ABT] $_\n" for @bt;
2973	--$_log_backtrace;	4293	--$_log_backtrace;
2974	};	4294	};
2975	} else {	4295	} else {
2976	LOG llevInfo, "[ABT] $msg\n";	4296	LOG llevInfo, "[ABT] $msg\n";
2977	LOG llevInfo, "[ABT] [suppressed]\n";	4297	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2978	}	4298	}
2979	}	4299	}
2980		4300
2981	# load additional modules	4301	# load additional modules
2982	use cf::pod;	4302	require "cf/$_.pm" for @EXTRA_MODULES;
		4303	cf::_connect_to_perl_2;
2983		4304
2984	END { cf::emergency_save }	4305	END { cf::emergency_save }
2985		4306
2986	1	4307	1
2987		4308

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