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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.251 by root, Wed Apr 18 14:45:13 2007 UTC vs.
Revision 1.584 by root, Tue Oct 30 17:07:50 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 Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	56	use Fcntl;
29	use YAML::Syck ();	57	use YAML::XS ();
30	use IO::AIO 2.32 ();	58	use IO::AIO ();
31	use Time::HiRes;	59	use Time::HiRes;
32	use Compress::LZF;	60	use Compress::LZF;
		61	use Digest::MD5 ();
		62
		63	AnyEvent::detect;
33		64
34	# configure various modules to our taste	65	# configure various modules to our taste
35	#	66	#
36	$Storable::canonical = 1; # reduce rsync transfers	67	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	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	74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		75
40	$Event::Eval = 1; # no idea why this is required, but it is	76	# strictly for debugging
41		77	$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		78
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
		96
		97	our $CONFDIR = confdir;
		98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	#our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
60		120
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		135
		136	our $UPTIME; $UPTIME ||= time;
		137	our $RUNTIME = 0;
		138	our $SERVER_TICK = 0;
66	our $NOW;	139	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off
68		140
69	our $BDB_POLL_WATCHER;	141	our (%PLAYER, %PLAYER_LOADING); # all users
70	our $DB_ENV;	142	our (%MAP, %MAP_LOADING ); # all maps
71
72	our %CFG;
73
74	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;
76
77	our %PLAYER; # all users
78	our %MAP; # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	143	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		144
83	# used to convert map paths into valid unix filenames by replacing / by ∕	145	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	146	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		147
		148	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		149	our $LOADAVG; # same thing, but with alpha-smoothing
		150	our $JITTER; # average jitter
		151	our $TICK_START; # for load detecting purposes
		152
		153	our @POST_INIT;
		154
		155	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		156	our $REALLY_UNLOOP; # never set to true, please :)
		157
		158	our $WAIT_FOR_TICK = new Coro::Signal;
		159	our @WAIT_FOR_TICK_BEGIN;
		160
86	binmode STDOUT;	161	binmode STDOUT;
87	binmode STDERR;	162	binmode STDERR;
88		163
89	# read virtual server time, if available	164	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	165	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	166	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	167	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	168	$RUNTIME = <$fh> + 0.;
94	}	169	}
95		170
96	mkdir cf::localdir;	171	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	172
98	mkdir cf::localdir . "/" . cf::tmpdir;	173	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	174	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		175
103	our $EMERGENCY_POSITION;	176	our $EMERGENCY_POSITION;
104		177
105	sub cf::map::normalise;	178	sub cf::map::normalise;
106		179
		180	sub in_main() {
		181	$Coro::current == $Coro::main
		182	}
		183
107	#############################################################################	184	#############################################################################
108		185
		186	%REFLECT = ();
		187	for (@REFLECT) {
		188	my $reflect = JSON::XS::decode_json $_;
		189	$REFLECT{$reflect->{class}} = $reflect;
		190	}
		191
		192	# this is decidedly evil
		193	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		194
		195	#############################################################################
		196
109	=head2 GLOBAL VARIABLES	197	=head2 GLOBAL VARIABLES
110		198
111	=over 4	199	=over 4
112		200
113	=item $cf::UPTIME	201	=item $cf::UPTIME
114		202
115	The timestamp of the server start (so not actually an uptime).	203	The timestamp of the server start (so not actually an "uptime").
		204
		205	=item $cf::SERVER_TICK
		206
		207	An unsigned integer that starts at zero when the server is started and is
		208	incremented on every tick.
		209
		210	=item $cf::NOW
		211
		212	The (real) time of the last (current) server tick - updated before and
		213	after tick processing, so this is useful only as a rough "what time is it
		214	now" estimate.
		215
		216	=item $cf::TICK
		217
		218	The interval between each server tick, in seconds.
116		219
117	=item $cf::RUNTIME	220	=item $cf::RUNTIME
118		221
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	222	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	223	every server tick.
121		224
122	=item $cf::LIBDIR	225	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		226	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		227	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		228
124	The perl library directory, where extensions and cf-specific modules can	229	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	230	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		231	unique-items directory, player file directory, random maps directory and
		232	database environment.
126		233
		234	=item $cf::LOADAVG
		235
		236	The current CPU load on the server (alpha-smoothed), as a value between 0
		237	(none) and 1 (overloaded), indicating how much time is spent on processing
		238	objects per tick. Healthy values are < 0.5.
		239
127	=item $cf::NOW	240	=item $cf::LOAD
128		241
129	The time of the last (current) server tick.	242	The raw value load value from the last tick.
130
131	=item $cf::TICK
132
133	The interval between server ticks, in seconds.
134		243
135	=item %cf::CFG	244	=item %cf::CFG
136		245
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	246	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	247	from wherever your confdir points to.
139		248
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	249	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		250
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	251	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	252	returns directly I<after> the tick processing (and consequently, can only wake one thread
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	253	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		254
		255	Note that cf::Wait_for_tick will immediately return when the server is not
		256	ticking, making it suitable for small pauses in threads that need to run
		257	when the server is paused. If that is not applicable (i.e. you I<really>
		258	want to wait, use C<$cf::WAIT_FOR_TICK>).
		259
		260	=item $cf::WAIT_FOR_TICK
		261
		262	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		263	variable contains a L<Coro::Signal> that is broadcats after every server
		264	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		265	next server tick.
		266
		267	=cut
		268
		269	sub wait_for_tick();
		270	sub wait_for_tick_begin();
		271
		272	=item @cf::INVOKE_RESULTS
		273
		274	This array contains the results of the last C<invoke ()> call. When
		275	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		276	that call.
		277
		278	=item %cf::REFLECT
		279
		280	Contains, for each (C++) class name, a hash reference with information
		281	about object members (methods, scalars, arrays and flags) and other
		282	metadata, which is useful for introspection.
		283
146	=back	284	=back
147		285
148	=cut	286	=cut
149		287
150	BEGIN {	288	sub error(@) { LOG llevError, join "", @_ }
151	*CORE::GLOBAL::warn = sub {	289	sub warn (@) { LOG llevWarn , join "", @_ }
		290	sub info (@) { LOG llevInfo , join "", @_ }
		291	sub debug(@) { LOG llevDebug, join "", @_ }
		292	sub trace(@) { LOG llevTrace, join "", @_ }
		293
		294	$Coro::State::WARNHOOK = sub {
152	my $msg = join "", @_;	295	my $msg = join "", @_;
153		296
154	$msg .= "\n"	297	$msg .= "\n"
155	unless $msg =~ /\n$/;	298	unless $msg =~ /\n$/;
156		299
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	300	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		301
159	utf8::encode $msg;
160	LOG llevError, $msg;	302	LOG llevWarn, $msg;
161	};	303	};
162	}	304
		305	$Coro::State::DIEHOOK = sub {
		306	return unless $^S eq 0; # "eq", not "=="
		307
		308	error Carp::longmess $_[0];
		309
		310	if (in_main) {#d#
		311	error "DIEHOOK called in main context, Coro bug?\n";#d#
		312	return;#d#
		313	}#d#
		314
		315	# kill coroutine otherwise
		316	Coro::terminate
		317	};
163		318
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	319	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	320	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	321	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	322	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	323	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		324	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	325	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		326
171	# we bless all objects into (empty) derived classes to force a method lookup	327	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	328	# within the Safe compartment.
173	for my $pkg (qw(	329	for my $pkg (qw(
174	cf::global cf::attachable	330	cf::global cf::attachable
175	cf::object cf::object::player	331	cf::object cf::object::player
176	cf::client cf::player	332	cf::client cf::player
177	cf::arch cf::living	333	cf::arch cf::living
		334	cf::map cf::mapspace
178	cf::map cf::party cf::region	335	cf::party cf::region
179	)) {	336	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	337	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	338	}
183		339
184	$Event::DIED = sub {	340	$EV::DIED = sub {
185	warn "error in event callback: @_";	341	Carp::cluck "error in event callback: @_";
186	};	342	};
		343
		344	#############################################################################
		345
		346	sub fork_call(&@);
		347	sub get_slot($;$$);
		348
		349	#############################################################################
187		350
188	=head2 UTILITY FUNCTIONS	351	=head2 UTILITY FUNCTIONS
189		352
190	=over 4	353	=over 4
191		354
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	373	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	374	$d
212	} || "[unable to dump $_[0]: '$@']";	375	} || "[unable to dump $_[0]: '$@']";
213	}	376	}
214		377
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	378	=item $scalar = cf::load_file $path
216		379
		380	Loads the given file from path and returns its contents. Croaks on error
		381	and can block.
		382
		383	=cut
		384
		385	sub load_file($) {
		386	0 <= aio_load $_[0], my $data
		387	or Carp::croak "$_[0]: $!";
		388
		389	$data
		390	}
		391
		392	=item $success = cf::replace_file $path, $data, $sync
		393
		394	Atomically replaces the file at the given $path with new $data, and
		395	optionally $sync the data to disk before replacing the file.
		396
		397	=cut
		398
		399	sub replace_file($$;$) {
		400	my ($path, $data, $sync) = @_;
		401
		402	my $lock = cf::lock_acquire ("replace_file:$path");
		403
		404	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		405	or return;
		406
		407	$data = $data->() if ref $data;
		408
		409	length $data == aio_write $fh, 0, (length $data), $data, 0
		410	or return;
		411
		412	!$sync
		413	or !aio_fsync $fh
		414	or return;
		415
		416	aio_close $fh
		417	and return;
		418
		419	aio_rename "$path~", $path
		420	and return;
		421
		422	if ($sync) {
		423	$path =~ s%/[^/]*$%%;
		424	aio_pathsync $path;
		425	}
		426
		427	1
		428	}
		429
217	=item $ref = cf::from_json $json	430	=item $ref = cf::decode_json $json
218		431
219	Converts a JSON string into the corresponding perl data structure.	432	Converts a JSON string into the corresponding perl data structure.
220		433
221	=item $json = cf::to_json $ref	434	=item $json = cf::encode_json $ref
222		435
223	Converts a perl data structure into its JSON representation.	436	Converts a perl data structure into its JSON representation.
224		437
		438	=cut
		439
		440	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		441
		442	sub encode_json($) { $json_coder->encode ($_[0]) }
		443	sub decode_json($) { $json_coder->decode ($_[0]) }
		444
		445	=item $ref = cf::decode_storable $scalar
		446
		447	Same as Coro::Storable::thaw, so blocks.
		448
		449	=cut
		450
		451	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		452
		453	=item $ref = cf::decode_yaml $scalar
		454
		455	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		456
		457	=cut
		458
		459	sub decode_yaml($) {
		460	fork_call { YAML::XS::Load $_[0] } @_
		461	}
		462
		463	=item $scalar = cf::unlzf $scalar
		464
		465	Same as Compress::LZF::compress, but takes server ticks into account, so
		466	blocks.
		467
		468	=cut
		469
		470	sub unlzf($) {
		471	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		472	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		473	Compress::LZF::decompress $_[0]
		474	}
		475
		476	=item cf::post_init { BLOCK }
		477
		478	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		479	but I<before> the server starts ticking again.
		480
		481	The codeblock will have a single boolean argument to indicate whether this
		482	is a reload or not.
		483
		484	=cut
		485
		486	sub post_init(&) {
		487	push @POST_INIT, shift;
		488	}
		489
		490	sub _post_init {
		491	trace "running post_init jobs";
		492
		493	# run them in parallel...
		494
		495	my @join;
		496
		497	while () {
		498	push @join, map &Coro::async ($_, 0), @POST_INIT;
		499	@POST_INIT = ();
		500
		501	@join or last;
		502
		503	(pop @join)->join;
		504	}
		505	}
		506
225	=item cf::lock_wait $string	507	=item cf::lock_wait $string
226		508
227	Wait until the given lock is available. See cf::lock_acquire.	509	Wait until the given lock is available. See cf::lock_acquire.
228		510
229	=item my $lock = cf::lock_acquire $string	511	=item my $lock = cf::lock_acquire $string
230		512
231	Wait until the given lock is available and then acquires it and returns	513	Wait until the given lock is available and then acquires it and returns
232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	514	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	515	for example when the coroutine gets canceled), the lock is automatically
234	returned.	516	returned.
235		517
		518	Locks are *not* recursive, locking from the same coro twice results in a
		519	deadlocked coro.
		520
236	Lock names should begin with a unique identifier (for example, cf::map::find	521	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	522	uses map_find and cf::map::load uses map_load).
238		523
239	=cut	524	=item $locked = cf::lock_active $string
240		525
241	our %LOCK;	526	Return true if the lock is currently active, i.e. somebody has locked it.
		527
		528	=cut
		529
		530	our $LOCKS = new Coro::SemaphoreSet;
242		531
243	sub lock_wait($) {	532	sub lock_wait($) {
244	my ($key) = @_;	533	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	534	}
252		535
253	sub lock_acquire($) {	536	sub lock_acquire($) {
254	my ($key) = @_;	537	$LOCKS->guard ($_[0])
		538	}
255		539
256	# wait, to be sure we are not locked	540	sub lock_active($) {
257	lock_wait $key;	541	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	542	}
266		543
267	sub freeze_mainloop {	544	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	545	tick_inhibit_inc;
269		546
270	my $guard = Coro::guard {	547	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	548	}
		549
		550	=item cf::periodic $interval, $cb
		551
		552	Like EV::periodic, but randomly selects a starting point so that the actions
		553	get spread over time.
		554
		555	=cut
		556
		557	sub periodic($$) {
		558	my ($interval, $cb) = @_;
		559
		560	my $start = rand List::Util::min 180, $interval;
		561
		562	EV::periodic $start, $interval, 0, $cb
		563	}
		564
		565	=item cf::get_slot $time[, $priority[, $name]]
		566
		567	Allocate $time seconds of blocking CPU time at priority C<$priority>
		568	(default: 0): This call blocks and returns only when you have at least
		569	C<$time> seconds of cpu time till the next tick. The slot is only valid
		570	till the next cede.
		571
		572	Background jobs should use a priority les than zero, interactive jobs
		573	should use 100 or more.
		574
		575	The optional C<$name> can be used to identify the job to run. It might be
		576	used for statistical purposes and should identify the same time-class.
		577
		578	Useful for short background jobs.
		579
		580	=cut
		581
		582	our @SLOT_QUEUE;
		583	our $SLOT_QUEUE;
		584	our $SLOT_DECAY = 0.9;
		585
		586	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		587	$SLOT_QUEUE = Coro::async {
		588	$Coro::current->desc ("timeslot manager");
		589
		590	my $signal = new Coro::Signal;
		591	my $busy;
		592
		593	while () {
		594	next_job:
		595
		596	my $avail = cf::till_tick;
		597
		598	for (0 .. $#SLOT_QUEUE) {
		599	if ($SLOT_QUEUE[$_][0] <= $avail) {
		600	$busy = 0;
		601	my $job = splice @SLOT_QUEUE, $_, 1, ();
		602	$job->[2]->send;
		603	Coro::cede;
		604	goto next_job;
		605	} else {
		606	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		607	}
		608	}
		609
		610	if (@SLOT_QUEUE) {
		611	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		612	$WAIT_FOR_TICK->wait;
		613	} else {
		614	$busy = 0;
		615	Coro::schedule;
		616	}
272	};	617	}
273	$TICK_WATCHER->stop;	618	};
274	$guard	619
		620	sub get_slot($;$$) {
		621	return if tick_inhibit || $Coro::current == $Coro::main;
		622
		623	my ($time, $pri, $name) = @_;
		624
		625	$time = clamp $time, 0.01, $TICK * .6;
		626
		627	my $sig = new Coro::Signal;
		628
		629	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		630	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		631	$SLOT_QUEUE->ready;
		632	$sig->wait;
275	}	633	}
276		634
277	=item cf::async { BLOCK }	635	=item cf::async { BLOCK }
278		636
279	Currently the same as Coro::async_pool, meaning you cannot use	637	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		642
285	BEGIN { *async = \&Coro::async_pool }	643	BEGIN { *async = \&Coro::async_pool }
286		644
287	=item cf::sync_job { BLOCK }	645	=item cf::sync_job { BLOCK }
288		646
289	The design of crossfire+ requires that the main coro ($Coro::main) is	647	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	648	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	649	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		650	acceptable.
292		651
293	If it must be done, put the blocking parts into C<sync_job>. This will run	652	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	653	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	654	server will be frozen during this time, so the block should either finish
296	fast or be very important.	655	fast or be very important.
…		…
298	=cut	657	=cut
299		658
300	sub sync_job(&) {	659	sub sync_job(&) {
301	my ($job) = @_;	660	my ($job) = @_;
302		661
303	if ($Coro::current == $Coro::main) {	662	if (in_main) {
		663	my $time = AE::time;
		664
304	# this is the main coro, too bad, we have to block	665	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	666	# till the operation succeeds, freezing the server :/
306		667
307	# TODO: use suspend/resume instead	668	#LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	669
309	my $freeze_guard = freeze_mainloop;	670	my $freeze_guard = freeze_mainloop;
310		671
311	my $busy = 1;	672	my $busy = 1;
312	my @res;	673	my @res;
313		674
314	(async {	675	(async {
		676	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	677	@res = eval { $job->() };
316	warn $@ if $@;	678	error $@ if $@;
317	undef $busy;	679	undef $busy;
318	})->prio (Coro::PRIO_MAX);	680	})->prio (Coro::PRIO_MAX);
319		681
320	while ($busy) {	682	while ($busy) {
321	Coro::cede or Event::one_event;	683	if (Coro::nready) {
		684	Coro::cede_notself;
		685	} else {
		686	EV::loop EV::LOOP_ONESHOT;
322	}	687	}
		688	}
		689
		690	my $time = AE::time - $time;
		691
		692	$TICK_START += $time; # do not account sync jobs to server load
323		693
324	wantarray ? @res : $res[0]	694	wantarray ? @res : $res[0]
325	} else {	695	} else {
326	# we are in another coroutine, how wonderful, everything just works	696	# we are in another coroutine, how wonderful, everything just works
327		697
…		…
347	$EXT_CORO{$coro+0} = $coro;	717	$EXT_CORO{$coro+0} = $coro;
348		718
349	$coro	719	$coro
350	}	720	}
351		721
352	sub write_runtime {	722	=item fork_call { }, @args
353	my $guard = cf::lock_acquire "write_runtime";
354		723
355	my $runtime = cf::localdir . "/runtime";	724	Executes the given code block with the given arguments in a seperate
		725	process, returning the results. Everything must be serialisable with
		726	Coro::Storable. May, of course, block. Note that the executed sub may
		727	never block itself or use any form of event handling.
356		728
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	729	=cut
358	or return;
359		730
360	my $value = $cf::RUNTIME + 90 + 10;	731	sub post_fork {
361	# 10 is the runtime save interval, for a monotonic clock	732	reset_signals;
362	# 60 allows for the watchdog to kill the server.	733	}
363		734
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	735	sub fork_call(&@) {
365	and return;	736	my ($cb, @args) = @_;
366		737
367	# always fsync - this file is important	738	# we seemingly have to make a local copy of the whole thing,
368	aio_fsync $fh	739	# otherwise perl prematurely frees the stuff :/
369	and return;	740	# TODO: investigate and fix (likely this will be rather laborious)
370		741
371	close $fh	742	my @res = Coro::Util::fork_eval {
372	or return;	743	cf::post_fork;
		744	&$cb
		745	} @args;
373		746
374	aio_rename "$runtime~", $runtime	747	wantarray ? @res : $res[-1]
375	and return;	748	}
376		749
		750	sub objinfo {
377	1	751	(
		752	"counter value" => cf::object::object_count,
		753	"objects created" => cf::object::create_count,
		754	"objects destroyed" => cf::object::destroy_count,
		755	"freelist size" => cf::object::free_count,
		756	"allocated objects" => cf::object::objects_size,
		757	"active objects" => cf::object::actives_size,
		758	)
		759	}
		760
		761	=item $coin = coin_from_name $name
		762
		763	=cut
		764
		765	our %coin_alias = (
		766	"silver" => "silvercoin",
		767	"silvercoin" => "silvercoin",
		768	"silvercoins" => "silvercoin",
		769	"gold" => "goldcoin",
		770	"goldcoin" => "goldcoin",
		771	"goldcoins" => "goldcoin",
		772	"platinum" => "platinacoin",
		773	"platinumcoin" => "platinacoin",
		774	"platinumcoins" => "platinacoin",
		775	"platina" => "platinacoin",
		776	"platinacoin" => "platinacoin",
		777	"platinacoins" => "platinacoin",
		778	"royalty" => "royalty",
		779	"royalties" => "royalty",
		780	);
		781
		782	sub coin_from_name($) {
		783	$coin_alias{$_[0]}
		784	? cf::arch::find $coin_alias{$_[0]}
		785	: undef
		786	}
		787
		788	=item $value = cf::db_get $family => $key
		789
		790	Returns a single value from the environment database.
		791
		792	=item cf::db_put $family => $key => $value
		793
		794	Stores the given C<$value> in the family. It can currently store binary
		795	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		796
		797	=item $db = cf::db_table "name"
		798
		799	Create and/or open a new database table. The string must not be "db" and must be unique
		800	within each server.
		801
		802	=cut
		803
		804	sub db_table($) {
		805	cf::error "db_get called from main context"
		806	if $Coro::current == $Coro::main;
		807
		808	my ($name) = @_;
		809	my $db = BDB::db_create $DB_ENV;
		810
		811	eval {
		812	$db->set_flags (BDB::CHKSUM);
		813
		814	utf8::encode $name;
		815	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		816	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		817	cf::cleanup "db_open(db): $!" if $!;
		818	};
		819	cf::cleanup "db_open(db): $@" if $@;
		820
		821	$db
		822	}
		823
		824	our $DB;
		825
		826	sub db_init {
		827	$DB ||= db_table "db";
		828	}
		829
		830	sub db_get($$) {
		831	my $key = "$_[0]/$_[1]";
		832
		833	cf::error "db_get called from main context"
		834	if $Coro::current == $Coro::main;
		835
		836	BDB::db_get $DB, undef, $key, my $data;
		837
		838	$! ? ()
		839	: $data
		840	}
		841
		842	sub db_put($$$) {
		843	BDB::dbreq_pri 4;
		844	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		845	}
		846
		847	=item cf::cache $id => [$paths...], $processversion => $process
		848
		849	Generic caching function that returns the value of the resource $id,
		850	caching and regenerating as required.
		851
		852	This function can block.
		853
		854	=cut
		855
		856	sub cache {
		857	my ($id, $src, $processversion, $process) = @_;
		858
		859	my $meta =
		860	join "\x00",
		861	$processversion,
		862	map {
		863	aio_stat $_
		864	and Carp::croak "$_: $!";
		865
		866	($_, (stat _)[7,9])
		867	} @$src;
		868
		869	my $dbmeta = db_get cache => "$id/meta";
		870	if ($dbmeta ne $meta) {
		871	# changed, we may need to process
		872
		873	my @data;
		874	my $md5;
		875
		876	for (0 .. $#$src) {
		877	$data[$_] = load_file $src->[$_];
		878	}
		879
		880	# if processing is expensive, check
		881	# checksum first
		882	if (1) {
		883	$md5 =
		884	join "\x00",
		885	$processversion,
		886	map {
		887	cf::cede_to_tick;
		888	($src->[$_], Digest::MD5::md5_hex $data[$_])
		889	} 0.. $#$src;
		890
		891
		892	my $dbmd5 = db_get cache => "$id/md5";
		893	if ($dbmd5 eq $md5) {
		894	db_put cache => "$id/meta", $meta;
		895
		896	return db_get cache => "$id/data";
		897	}
		898	}
		899
		900	my $t1 = Time::HiRes::time;
		901	my $data = $process->(\@data);
		902	my $t2 = Time::HiRes::time;
		903
		904	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		905
		906	db_put cache => "$id/data", $data;
		907	db_put cache => "$id/md5" , $md5;
		908	db_put cache => "$id/meta", $meta;
		909
		910	return $data;
		911	}
		912
		913	db_get cache => "$id/data"
378	}	914	}
379		915
380	=item cf::datalog type => key => value, ...	916	=item cf::datalog type => key => value, ...
381		917
382	Log a datalog packet of the given type with the given key-value pairs.	918	Log a datalog packet of the given type with the given key-value pairs.
383		919
384	=cut	920	=cut
385		921
386	sub datalog($@) {	922	sub datalog($@) {
387	my ($type, %kv) = @_;	923	my ($type, %kv) = @_;
388	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	924	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
389	}	925	}
390		926
391	=back	927	=back
392		928
393	=cut	929	=cut
394		930
395	#############################################################################	931	#############################################################################
396		932
397	=head2 ATTACHABLE OBJECTS	933	=head2 ATTACHABLE OBJECTS
398		934
399	Many objects in crossfire are so-called attachable objects. That means you can	935	Many objects in deliantra are so-called attachable objects. That means you can
400	attach callbacks/event handlers (a collection of which is called an "attachment")	936	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	937	to it. All such attachable objects support the following methods.
402		938
403	In the following description, CLASS can be any of C<global>, C<object>	939	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	940	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	941	Deliantra).
406		942
407	=over 4	943	=over 4
408		944
409	=item $attachable->attach ($attachment, key => $value...)	945	=item $attachable->attach ($attachment, key => $value...)
410		946
…		…
454	=item cf::CLASS::attachment $name, ...	990	=item cf::CLASS::attachment $name, ...
455		991
456	Register an attachment by C<$name> through which attachable objects of the	992	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	993	given CLASS can refer to this attachment.
458		994
459	Some classes such as crossfire maps and objects can specify attachments	995	Some classes such as deliantra maps and objects can specify attachments
460	that are attached at load/instantiate time, thus the need for a name.	996	that are attached at load/instantiate time, thus the need for a name.
461		997
462	These calls expect any number of the following handler/hook descriptions:	998	These calls expect any number of the following handler/hook descriptions:
463		999
464	=over 4	1000	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	1109	$registry = $CB_TYPE[$object_type] ||= [];
574		1110
575	} elsif ($type eq "subtype") {	1111	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	1112	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	1113	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1114	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		1115
580	} elsif ($type eq "package") {	1116	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	1117	my $pkg = shift @arg;
582		1118
583	while (my ($name, $id) = each %cb_id) {	1119	while (my ($name, $id) = each %cb_id) {
…		…
588		1124
589	} elsif (exists $cb_id{$type}) {	1125	} elsif (exists $cb_id{$type}) {
590	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1126	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
591		1127
592	} elsif (ref $type) {	1128	} elsif (ref $type) {
593	warn "attaching objects not supported, ignoring.\n";	1129	error "attaching objects not supported, ignoring.\n";
594		1130
595	} else {	1131	} else {
596	shift @arg;	1132	shift @arg;
597	warn "attach argument '$type' not supported, ignoring.\n";	1133	error "attach argument '$type' not supported, ignoring.\n";
598	}	1134	}
599	}	1135	}
600	}	1136	}
601		1137
602	sub _object_attach {	1138	sub _object_attach {
…		…
612	_attach $registry, $klass, @attach;	1148	_attach $registry, $klass, @attach;
613	}	1149	}
614		1150
615	$obj->{$name} = \%arg;	1151	$obj->{$name} = \%arg;
616	} else {	1152	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	1153	info "object uses attachment '$name' which is not available, postponing.\n";
618	}	1154	}
619		1155
620	$obj->{_attachment}{$name} = undef;	1156	$obj->{_attachment}{$name} = undef;
621	}	1157	}
622		1158
…		…
624	if (ref $_[0]) {	1160	if (ref $_[0]) {
625	_object_attach @_;	1161	_object_attach @_;
626	} else {	1162	} else {
627	_attach shift->_attach_registry, @_;	1163	_attach shift->_attach_registry, @_;
628	}	1164	}
		1165	_recalc_want;
629	};	1166	};
630		1167
631	# all those should be optimised	1168	# all those should be optimised
632	sub cf::attachable::detach {	1169	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	1170	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	1173	delete $obj->{_attachment}{$name};
637	reattach ($obj);	1174	reattach ($obj);
638	} else {	1175	} else {
639	Carp::croak "cannot, currently, detach class attachments";	1176	Carp::croak "cannot, currently, detach class attachments";
640	}	1177	}
		1178	_recalc_want;
641	};	1179	};
642		1180
643	sub cf::attachable::attached {	1181	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	1182	my ($obj, $name) = @_;
645		1183
…		…
660	";	1198	";
661	die if $@;	1199	die if $@;
662	}	1200	}
663		1201
664	our $override;	1202	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1203	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1204
667	sub override {	1205	sub override {
668	$override = 1;	1206	$override = 1;
669	@invoke_results = ();	1207	@INVOKE_RESULTS = (@_);
670	}	1208	}
671		1209
672	sub do_invoke {	1210	sub do_invoke {
673	my $event = shift;	1211	my $event = shift;
674	my $callbacks = shift;	1212	my $callbacks = shift;
675		1213
676	@invoke_results = ();	1214	@INVOKE_RESULTS = ();
677		1215
678	local $override;	1216	local $override;
679		1217
680	for (@$callbacks) {	1218	for (@$callbacks) {
681	eval { &{$_->[1]} };	1219	eval { &{$_->[1]} };
682		1220
683	if ($@) {	1221	if ($@) {
684	warn "$@";
685	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1222	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
686	override;	1223	override;
687	}	1224	}
688		1225
689	return 1 if $override;	1226	return 1 if $override;
690	}	1227	}
691		1228
692	0	1229	0
693	}	1230	}
694		1231
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1232	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1233
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1235
699	Generate an object-specific event with the given arguments.	1236	Generate an object-specific event with the given arguments.
700		1237
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1238	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	1239	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1240	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1241
705	=back	1242	=back
706		1243
707	=cut	1244	=cut
708		1245
709	#############################################################################	1246	#############################################################################
710	# object support	1247	# object support
		1248
		1249	sub _object_equal($$);
		1250	sub _object_equal($$) {
		1251	my ($a, $b) = @_;
		1252
		1253	return 0 unless (ref $a) eq (ref $b);
		1254
		1255	if ("HASH" eq ref $a) {
		1256	my @ka = keys %$a;
		1257	my @kb = keys %$b;
		1258
		1259	return 0 if @ka != @kb;
		1260
		1261	for (0 .. $#ka) {
		1262	return 0 unless $ka[$_] eq $kb[$_];
		1263	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1264	}
		1265
		1266	} elsif ("ARRAY" eq ref $a) {
		1267
		1268	return 0 if @$a != @$b;
		1269
		1270	for (0 .. $#$a) {
		1271	return 0 unless _object_equal $a->[$_], $b->[$_];
		1272	}
		1273
		1274	} elsif ($a ne $b) {
		1275	return 0;
		1276	}
		1277
		1278	1
		1279	}
		1280
		1281	our $SLOW_MERGES;#d#
		1282	sub _can_merge {
		1283	my ($ob1, $ob2) = @_;
		1284
		1285	++$SLOW_MERGES;#d#
		1286
		1287	# we do the slow way here
		1288	return _object_equal $ob1, $ob2
		1289	}
711		1290
712	sub reattach {	1291	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1292	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1293	my ($obj) = @_;
715		1294
		1295	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1296	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1297
718	my $registry = $obj->registry;	1298	my $registry = $obj->registry;
719		1299
720	@$registry = ();	1300	@$registry = ();
721		1301
…		…
726	for (@$attach) {	1306	for (@$attach) {
727	my ($klass, @attach) = @$_;	1307	my ($klass, @attach) = @$_;
728	_attach $registry, $klass, @attach;	1308	_attach $registry, $klass, @attach;
729	}	1309	}
730	} else {	1310	} else {
731	warn "object uses attachment '$name' that is not available, postponing.\n";	1311	info "object uses attachment '$name' that is not available, postponing.\n";
732	}	1312	}
733	}	1313	}
734	}	1314	}
735		1315
736	cf::attachable->attach (	1316	cf::attachable->attach (
737	prio => -1000000,	1317	prio => -1000000,
738	on_instantiate => sub {	1318	on_instantiate => sub {
739	my ($obj, $data) = @_;	1319	my ($obj, $data) = @_;
740		1320
741	$data = from_json $data;	1321	$data = decode_json $data;
742		1322
743	for (@$data) {	1323	for (@$data) {
744	my ($name, $args) = @$_;	1324	my ($name, $args) = @$_;
745		1325
746	$obj->attach ($name, %{$args || {} });	1326	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1342	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1343	my ($filename, $rdata, $objs) = @_;
764		1344
765	sync_job {	1345	sync_job {
766	if (length $$rdata) {	1346	if (length $$rdata) {
		1347	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1348	trace sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1349	$decname, length $$rdata, scalar @$objs
		1350	if $VERBOSE_IO;
769		1351
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1352	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1353	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1354	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1355	if ($cf::USE_FSYNC) {
		1356	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;
		1357	aio_fsync $fh;
		1358	}
774	close $fh;	1359	aio_close $fh;
775		1360
776	if (@$objs) {	1361	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1362	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1363	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1364	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1365	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1366	if ($cf::USE_FSYNC) {
		1367	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;
		1368	aio_fsync $fh;
		1369	}
782	close $fh;	1370	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1371	aio_rename "$filename.pst~", "$filename.pst";
784	}	1372	}
785	} else {	1373	} else {
786	aio_unlink "$filename.pst";	1374	aio_unlink "$filename.pst";
787	}	1375	}
788		1376
789	aio_rename "$filename~", $filename;	1377	aio_rename "$filename~", $filename;
		1378
		1379	$filename =~ s%/[^/]+$%%;
		1380	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1381	} else {
791	warn "FATAL: $filename~: $!\n";	1382	error "unable to save objects: $filename~: $!\n";
792	}	1383	}
793	} else {	1384	} else {
794	aio_unlink $filename;	1385	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1386	aio_unlink "$filename.pst";
796	}	1387	}
797	}	1388	};
798	}	1389	}
799		1390
800	sub object_freezer_as_string {	1391	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1392	my ($rdata, $objs) = @_;
802		1393
…		…
814	or return;	1405	or return;
815		1406
816	unless (aio_stat "$filename.pst") {	1407	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1408	(aio_load "$filename.pst", $av) >= 0
818	or return;	1409	or return;
		1410
819	$av = eval { (Storable::thaw $av)->{objs} };	1411	my $st = eval { Coro::Storable::thaw $av };
		1412	$av = $st->{objs};
820	}	1413	}
821		1414
		1415	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1416	trace sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1417	$decname, length $data, scalar @{$av || []}
		1418	if $VERBOSE_IO;
		1419
824	return ($data, $av);	1420	($data, $av)
825	}	1421	}
		1422
		1423	=head2 COMMAND CALLBACKS
		1424
		1425	=over 4
		1426
		1427	=cut
826		1428
827	#############################################################################	1429	#############################################################################
828	# command handling &c	1430	# command handling &c
829		1431
830	=item cf::register_command $name => \&callback($ob,$args);	1432	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1445	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1446	}
845		1447
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1448	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1449
848	Register a callbackf ro execution when the client sends an extcmd packet.	1450	Register a callback for execution when the client sends an (synchronous)
		1451	extcmd packet. Ext commands will be processed in the order they are
		1452	received by the server, like other user commands. The first argument is
		1453	the logged-in player. Ext commands can only be processed after a player
		1454	has logged in successfully.
849		1455
850	If the callback returns something, it is sent back as if reply was being	1456	If the callback returns something, it is sent back as if reply was being
851	called.	1457	called.
852		1458
		1459	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1460
		1461	Register a callback for execution when the client sends an (asynchronous)
		1462	exticmd packet. Exti commands are processed by the server as soon as they
		1463	are received, i.e. out of order w.r.t. other commands. The first argument
		1464	is a client socket. Exti commands can be received anytime, even before
		1465	log-in.
		1466
		1467	If the callback returns something, it is sent back as if reply was being
		1468	called.
		1469
853	=cut	1470	=cut
854		1471
855	sub register_extcmd {	1472	sub register_extcmd {
856	my ($name, $cb) = @_;	1473	my ($name, $cb) = @_;
857		1474
858	$EXTCMD{$name} = $cb;	1475	$EXTCMD{$name} = $cb;
859	}	1476	}
860		1477
		1478	sub register_exticmd {
		1479	my ($name, $cb) = @_;
		1480
		1481	$EXTICMD{$name} = $cb;
		1482	}
		1483
		1484	use File::Glob ();
		1485
861	cf::player->attach (	1486	cf::player->attach (
862	on_command => sub {	1487	on_unknown_command => sub {
863	my ($pl, $name, $params) = @_;	1488	my ($pl, $name, $params) = @_;
864		1489
865	my $cb = $COMMAND{$name}	1490	my $cb = $COMMAND{$name}
866	or return;	1491	or return;
867		1492
…		…
872	cf::override;	1497	cf::override;
873	},	1498	},
874	on_extcmd => sub {	1499	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1500	my ($pl, $buf) = @_;
876		1501
877	my $msg = eval { from_json $buf };	1502	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1503
879	if (ref $msg) {	1504	if (ref $msg) {
		1505	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1506
		1507	my @reply;
		1508
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1509	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1510	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1511	}
		1512
		1513	$pl->ext_reply ($reply, @reply)
		1514	if $reply;
		1515
885	} else {	1516	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1517	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1518	}
888		1519
889	cf::override;	1520	cf::override;
890	},	1521	},
891	);	1522	);
892		1523
		1524	# "readahead" all extensions
893	sub load_extension {	1525	sub cache_extensions {
894	my ($path) = @_;	1526	my $grp = IO::AIO::aio_group;
895		1527
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1528	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1529	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1530	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1531	}
921	die $@;
922	}	1532	};
923		1533
924	push @EXTS, $pkg;	1534	$grp
		1535	}
		1536
		1537	sub _ext_cfg_reg($$$$) {
		1538	my ($rvar, $varname, $cfgname, $default) = @_;
		1539
		1540	$cfgname = lc $varname
		1541	unless length $cfgname;
		1542
		1543	$EXT_CFG{$cfgname} = [$rvar, $default];
		1544
		1545	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
925	}	1546	}
926		1547
927	sub load_extensions {	1548	sub load_extensions {
		1549	info "loading extensions...";
		1550
		1551	%EXT_CFG = ();
		1552
		1553	cf::sync_job {
		1554	my %todo;
		1555
928	for my $ext (<$LIBDIR/*.ext>) {	1556	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1557	next unless -r $path;
930	eval {	1558
931	load_extension $ext;	1559	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1560	my $base = $1;
		1561	my $pkg = $1;
		1562	$pkg =~ s/[^[:word:]]/_/g;
		1563	$pkg = "ext::$pkg";
		1564
		1565	open my $fh, "<:utf8", $path
		1566	or die "$path: $!";
		1567
		1568	my $source = do { local $/; <$fh> };
		1569
		1570	my %ext = (
		1571	path => $path,
		1572	base => $base,
		1573	pkg => $pkg,
		1574	);
		1575
		1576	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1577	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1578
		1579	$ext{source} =
		1580	"package $pkg; use common::sense;\n"
		1581	. "#line 1 \"$path\"\n{\n"
		1582	. $source
		1583	. "\n};\n1";
		1584
		1585	$todo{$base} = \%ext;
		1586	}
		1587
		1588	my $pass = 0;
		1589	my %done;
		1590	while (%todo) {
		1591	my $progress;
		1592
		1593	++$pass;
		1594
		1595	ext:
		1596	while (my ($k, $v) = each %todo) {
		1597	for (split /,\s*/, $v->{meta}{depends}) {
		1598	next ext
		1599	unless exists $done{$_};
		1600	}
		1601
		1602	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1603
		1604	my $source = $v->{source};
		1605
		1606	# support "CONF varname :confname = default" pseudo-statements
		1607	$source =~ s{
		1608	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1609	}{
		1610	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1611	}gmxe;
		1612
		1613	my $active = eval $source;
		1614
		1615	if (length $@) {
		1616	error "$v->{path}: $@\n";
		1617
		1618	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1619	if exists $v->{meta}{mandatory};
		1620
		1621	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1622	delete $todo{$k};
		1623	} else {
		1624	$done{$k} = delete $todo{$k};
		1625	push @EXTS, $v->{pkg};
		1626	$progress = 1;
		1627
		1628	info "$v->{base}: extension inactive.\n"
		1629	unless $active;
		1630	}
932	1	1631	}
933	} or warn "$ext not loaded: $@";	1632
		1633	unless ($progress) {
		1634	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1635
		1636	while (my ($k, $v) = each %todo) {
		1637	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1638	if exists $v->{meta}{mandatory};
		1639	}
		1640
		1641	last;
		1642	}
		1643	}
934	}	1644	};
935	}	1645	}
936		1646
937	#############################################################################	1647	#############################################################################
938		1648
		1649	=back
		1650
939	=head2 CORE EXTENSIONS	1651	=head2 CORE EXTENSIONS
940		1652
941	Functions and methods that extend core crossfire objects.	1653	Functions and methods that extend core deliantra objects.
942		1654
943	=cut	1655	=cut
944		1656
945	package cf::player;	1657	package cf::player;
946		1658
…		…
948		1660
949	=head3 cf::player	1661	=head3 cf::player
950		1662
951	=over 4	1663	=over 4
952		1664
		1665	=item cf::player::num_playing
		1666
		1667	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1668
		1669	=cut
		1670
		1671	sub num_playing {
		1672	scalar grep
		1673	$_->ob->map
		1674	&& !$_->hidden
		1675	&& !$_->ob->flag (cf::FLAG_WIZ),
		1676	cf::player::list
		1677	}
		1678
953	=item cf::player::find $login	1679	=item cf::player::find $login
954		1680
955	Returns the given player object, loading it if necessary (might block).	1681	Returns the given player object, loading it if necessary (might block).
956		1682
957	=cut	1683	=cut
958		1684
959	sub playerdir($) {	1685	sub playerdir($) {
960	cf::localdir	1686	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1687	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1688	}
966		1689
967	sub path($) {	1690	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1691	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1701
979	sub exists($) {	1702	sub exists($) {
980	my ($login) = @_;	1703	my ($login) = @_;
981		1704
982	$cf::PLAYER{$login}	1705	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1706	or !aio_stat path $login
984	}	1707	}
985		1708
986	sub find($) {	1709	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1710	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1711	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1718	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1719	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1720	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1721	aio_unlink +(playerdir $login) . "/$login.pl";
999		1722
1000	my $pl = load_pl path $login	1723	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1724	or return;
		1725
		1726	my $pl = cf::player::load_pl $f
		1727	or return;
		1728
		1729	local $cf::PLAYER_LOADING{$login} = $pl;
		1730	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1731	$cf::PLAYER{$login} = $pl
1003	}	1732	}
1004	}	1733	}
1005	}	1734	}
		1735
		1736	cf::player->attach (
		1737	on_load => sub {
		1738	my ($pl, $path) = @_;
		1739
		1740	# restore slots saved in save, below
		1741	my $slots = delete $pl->{_slots};
		1742
		1743	$pl->ob->current_weapon ($slots->[0]);
		1744	$pl->combat_ob ($slots->[1]);
		1745	$pl->ranged_ob ($slots->[2]);
		1746	},
		1747	);
1006		1748
1007	sub save($) {	1749	sub save($) {
1008	my ($pl) = @_;	1750	my ($pl) = @_;
1009		1751
1010	return if $pl->{deny_save};	1752	return if $pl->{deny_save};
…		…
1015	return if $pl->{deny_save};	1757	return if $pl->{deny_save};
1016		1758
1017	aio_mkdir playerdir $pl, 0770;	1759	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1760	$pl->{last_save} = $cf::RUNTIME;
1019		1761
		1762	cf::get_slot 0.01;
		1763
		1764	# save slots, to be restored later
		1765	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1766
1020	$pl->save_pl ($path);	1767	$pl->save_pl ($path);
1021	Coro::cede;	1768	cf::cede_to_tick;
1022	}	1769	}
1023		1770
1024	sub new($) {	1771	sub new($) {
1025	my ($login) = @_;	1772	my ($login) = @_;
1026		1773
…		…
1032	$cf::PLAYER{$login} = $self;	1779	$cf::PLAYER{$login} = $self;
1033		1780
1034	$self	1781	$self
1035	}	1782	}
1036		1783
		1784	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1785
		1786	=cut
		1787
		1788	sub send_msg {
		1789	my $ns = shift->ns
		1790	or return;
		1791	$ns->send_msg (@_);
		1792	}
		1793
1037	=item $pl->quit_character	1794	=item $pl->quit_character
1038		1795
1039	Nukes the player without looking back. If logged in, the connection will	1796	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1797	be destroyed. May block for a long time.
1041		1798
…		…
1045	my ($pl) = @_;	1802	my ($pl) = @_;
1046		1803
1047	my $name = $pl->ob->name;	1804	my $name = $pl->ob->name;
1048		1805
1049	$pl->{deny_save} = 1;	1806	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1807	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1808
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1809	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1053	$pl->deactivate;	1810	$pl->deactivate;
		1811
		1812	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1813	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1814	ext::highscore::check ($pl->ob);
		1815
1055	$pl->ns->destroy if $pl->ns;	1816	$pl->ns->destroy if $pl->ns;
1056		1817
1057	my $path = playerdir $pl;	1818	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1819	my $temp = "$path~$cf::RUNTIME~deleting~";
1059	aio_rename $path, $temp;	1820	aio_rename $path, $temp;
…		…
1088	while and may block, so not sync_job-capable, ever.	1849	while and may block, so not sync_job-capable, ever.
1089		1850
1090	=cut	1851	=cut
1091		1852
1092	sub list_logins {	1853	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1854	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1855	or return [];
1095		1856
1096	my @logins;	1857	my @logins;
1097		1858
1098	for my $login (@$dirs) {	1859	for my $login (@$dirs) {
		1860	my $path = path $login;
		1861
		1862	# a .pst is a dead give-away for a valid player
		1863	# if no pst file found, open and chekc for blocked users
		1864	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1865	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1866	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1867	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1868	}
1102		1869
1103	utf8::decode $login;	1870	utf8::decode $login;
1104	push @logins, $login;	1871	push @logins, $login;
1105	}	1872	}
1106		1873
1107	\@logins	1874	\@logins
1108	}	1875	}
1109		1876
1110	=item $player->maps	1877	=item $player->maps
		1878
		1879	=item cf::player::maps $login
1111		1880
1112	Returns an arrayref of map paths that are private for this	1881	Returns an arrayref of map paths that are private for this
1113	player. May block.	1882	player. May block.
1114		1883
1115	=cut	1884	=cut
…		…
1133	}	1902	}
1134		1903
1135	\@paths	1904	\@paths
1136	}	1905	}
1137		1906
		1907	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1908
		1909	Expand deliantra pod fragments into protocol xml.
		1910
1138	=item $player->ext_reply ($msgid, %msg)	1911	=item $player->ext_reply ($msgid, @msg)
1139		1912
1140	Sends an ext reply to the player.	1913	Sends an ext reply to the player.
1141		1914
1142	=cut	1915	=cut
1143		1916
1144	sub ext_reply($$%) {	1917	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1918	my ($self, $id, @msg) = @_;
1146		1919
1147	$msg{msgid} = $id;	1920	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1921	}
1151		1922
1152	=item $player->ext_event ($type, %msg)	1923	=item $player->ext_msg ($type, @msg)
1153		1924
1154	Sends an ext event to the client.	1925	Sends an ext event to the client.
1155		1926
1156	=cut	1927	=cut
1157		1928
1158	sub ext_event($$%) {	1929	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1930	my ($self, $type, @msg) = @_;
1160		1931
1161	$self->ns->ext_event ($type, %msg);	1932	$self->ns->ext_msg ($type, @msg);
1162	}	1933	}
1163		1934
1164	=head3 cf::region	1935	=head3 cf::region
1165		1936
1166	=over 4	1937	=over 4
…		…
1169		1940
1170	package cf::region;	1941	package cf::region;
1171		1942
1172	=item cf::region::find_by_path $path	1943	=item cf::region::find_by_path $path
1173		1944
1174	Tries to decuce the probable region for a map knowing only its path.	1945	Tries to decuce the likely region for a map knowing only its path.
1175		1946
1176	=cut	1947	=cut
1177		1948
1178	sub find_by_path($) {	1949	sub find_by_path($) {
1179	my ($path) = @_;	1950	my ($path) = @_;
1180		1951
		1952	$path =~ s/^~[^\/]*//; # skip ~login
		1953
1181	my ($match, $specificity);	1954	my ($match, $specificity);
1182		1955
1183	for my $region (list) {	1956	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1957	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1958	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1959	if $region->specificity > $specificity;
1187	}	1960	}
1188	}	1961	}
1189		1962
…		…
1210	our $MAX_RESET = 3600;	1983	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1984	our $DEFAULT_RESET = 3000;
1212		1985
1213	sub generate_random_map {	1986	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1987	my ($self, $rmp) = @_;
1215	# mit "rum" bekleckern, nicht	1988
		1989	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1990
1216	$self->_create_random_map (	1991	$self->_create_random_map ($rmp);
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1220	$rmp->{exit_on_final_map},
1221	$rmp->{xsize}, $rmp->{ysize},
1222	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1223	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1224	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1225	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1226	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1227	(cf::region::find $rmp->{region}), $rmp->{custom}
1228	)
1229	}	1992	}
1230		1993
1231	=item cf::map->register ($regex, $prio)	1994	=item cf::map->register ($regex, $prio)
1232		1995
1233	Register a handler for the map path matching the given regex at the	1996	Register a handler for the map path matching the given regex at the
…		…
1238		2001
1239	sub register {	2002	sub register {
1240	my (undef, $regex, $prio) = @_;	2003	my (undef, $regex, $prio) = @_;
1241	my $pkg = caller;	2004	my $pkg = caller;
1242		2005
1243	no strict;
1244	push @{"$pkg\::ISA"}, __PACKAGE__;	2006	push @{"$pkg\::ISA"}, __PACKAGE__;
1245		2007
1246	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2008	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1247	}	2009	}
1248		2010
1249	# also paths starting with '/'	2011	# also paths starting with '/'
1250	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2012	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1251		2013
1252	sub thawer_merge {	2014	sub thawer_merge {
1253	my ($self, $merge) = @_;	2015	my ($self, $merge) = @_;
1254		2016
1255	# we have to keep some variables in memory intact	2017	# we have to keep some variables in memory intact
1256	local $self->{path};	2018	local $self->{path};
1257	local $self->{load_path};	2019	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		2020
1261	$self->SUPER::thawer_merge ($merge);	2021	$self->SUPER::thawer_merge ($merge);
1262	}	2022	}
1263		2023
1264	sub normalise {	2024	sub normalise {
1265	my ($path, $base) = @_;	2025	my ($path, $base) = @_;
1266		2026
1267	$path = "$path"; # make sure its a string	2027	$path = "$path"; # make sure it's a string
1268		2028
1269	$path =~ s/\.map$//;	2029	$path =~ s/\.map$//;
1270		2030
1271	# map plan:	2031	# map plan:
1272	#	2032	#
…		…
1287	$base =~ s{[^/]+/?$}{};	2047	$base =~ s{[^/]+/?$}{};
1288	$path = "$base/$path";	2048	$path = "$base/$path";
1289	}	2049	}
1290		2050
1291	for ($path) {	2051	for ($path) {
1292	redo if s{//}{/};
1293	redo if s{/\.?/}{/};	2052	redo if s{/\.?/}{/};
1294	redo if s{/[^/]+/\.\./}{/};	2053	redo if s{/[^/]+/\.\./}{/};
1295	}	2054	}
1296		2055
1297	$path	2056	$path
…		…
1311	$self->init; # pass $1 etc.	2070	$self->init; # pass $1 etc.
1312	return $self;	2071	return $self;
1313	}	2072	}
1314	}	2073	}
1315		2074
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	2075	Carp::cluck "unable to resolve path '$path' (base '$base')";
1317	()	2076	()
1318	}	2077	}
1319		2078
		2079	# may re-bless or do other evil things
1320	sub init {	2080	sub init {
1321	my ($self) = @_;	2081	my ($self) = @_;
1322		2082
1323	$self	2083	$self
1324	}	2084	}
…		…
1336		2096
1337	# the original (read-only) location	2097	# the original (read-only) location
1338	sub load_path {	2098	sub load_path {
1339	my ($self) = @_;	2099	my ($self) = @_;
1340		2100
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	2101	"$MAPDIR/$self->{path}.map"
1342	}	2102	}
1343		2103
1344	# the temporary/swap location	2104	# the temporary/swap location
1345	sub save_path {	2105	sub save_path {
1346	my ($self) = @_;	2106	my ($self) = @_;
1347		2107
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2108	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	2109	"$TMPDIR/$path.map"
1350	}	2110	}
1351		2111
1352	# the unique path, undef == no special unique path	2112	# the unique path, undef == no special unique path
1353	sub uniq_path {	2113	sub uniq_path {
1354	my ($self) = @_;	2114	my ($self) = @_;
1355		2115
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2116	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	2117	"$UNIQUEDIR/$path"
1358	}	2118	}
1359		2119
1360	# and all this just because we cannot iterate over	2120	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	2121	my ($self) = @_;
1364		2122
1365	$_->change_map_light ($change)	2123	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	2124
		2125	$self->do_decay_objects;
1367	}	2126	}
1368		2127
1369	sub unlink_save {	2128	sub unlink_save {
1370	my ($self) = @_;	2129	my ($self) = @_;
1371		2130
…		…
1376		2135
1377	sub load_header_from($) {	2136	sub load_header_from($) {
1378	my ($self, $path) = @_;	2137	my ($self, $path) = @_;
1379		2138
1380	utf8::encode $path;	2139	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	2140	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	2141	or return;
1386		2142
		2143	$self->_load_header ($f)
		2144	or return;
		2145
		2146	local $MAP_LOADING{$self->{path}} = $self;
		2147	$f->resolve_delayed_derefs;
		2148
1387	$self->{load_path} = $path;	2149	$self->{load_path} = $path;
1388		2150
1389	1	2151	1
1390	}	2152	}
1391		2153
		2154	# used to laod the header of an original map
1392	sub load_header_orig {	2155	sub load_header_orig {
1393	my ($self) = @_;	2156	my ($self) = @_;
1394		2157
1395	$self->load_header_from ($self->load_path)	2158	$self->load_header_from ($self->load_path)
1396	}	2159	}
1397		2160
		2161	# used to laod the header of an instantiated map
1398	sub load_header_temp {	2162	sub load_header_temp {
1399	my ($self) = @_;	2163	my ($self) = @_;
1400		2164
1401	$self->load_header_from ($self->save_path)	2165	$self->load_header_from ($self->save_path)
1402	}	2166	}
1403		2167
		2168	# called after loading the header from an instantiated map
1404	sub prepare_temp {	2169	sub prepare_temp {
1405	my ($self) = @_;	2170	my ($self) = @_;
1406		2171
1407	$self->last_access ((delete $self->{last_access})	2172	$self->last_access ((delete $self->{last_access})
1408	|| $cf::RUNTIME); #d#	2173	|| $cf::RUNTIME); #d#
1409	# safety	2174	# safety
1410	$self->{instantiate_time} = $cf::RUNTIME	2175	$self->{instantiate_time} = $cf::RUNTIME
1411	if $self->{instantiate_time} > $cf::RUNTIME;	2176	if $self->{instantiate_time} > $cf::RUNTIME;
1412	}	2177	}
1413		2178
		2179	# called after loading the header from an original map
1414	sub prepare_orig {	2180	sub prepare_orig {
1415	my ($self) = @_;	2181	my ($self) = @_;
1416		2182
1417	$self->{load_original} = 1;	2183	$self->{load_original} = 1;
1418	$self->{instantiate_time} = $cf::RUNTIME;	2184	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1429	$self->load_header_orig	2195	$self->load_header_orig
1430	or return;	2196	or return;
1431	$self->prepare_orig;	2197	$self->prepare_orig;
1432	}	2198	}
1433		2199
		2200	$self->{deny_reset} = 1
		2201	if $self->no_reset;
		2202
1434	$self->default_region (cf::region::find_by_path $self->{path})	2203	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	2204	unless $self->default_region;
1436		2205
1437	1	2206	1
1438	}	2207	}
1439		2208
1440	sub find;	2209	sub find;
1441	sub find {	2210	sub find {
1442	my ($path, $origin) = @_;	2211	my ($path, $origin) = @_;
1443		2212
		2213	cf::cede_to_tick;
		2214
1444	$path = normalise $path, $origin && $origin->path;	2215	$path = normalise $path, $origin;
1445		2216
		2217	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	2218	my $guard2 = cf::lock_acquire "map_find:$path";
1447		2219
1448	$cf::MAP{$path} || do {	2220	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	2221	my $map = new_from_path cf::map $path
1451	or return;	2222	or return;
1452		2223
1453	$map->{last_save} = $cf::RUNTIME;	2224	$map->{last_save} = $cf::RUNTIME;
1454		2225
1455	$map->load_header	2226	$map->load_header
1456	or return;	2227	or return;
1457		2228
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2229	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	2230	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	2231	#$cf::WAIT_FOR_TICK->wait;
		2232	undef $guard2;
		2233	undef $guard1;
1461	$map->reset;	2234	$map->reset;
1462	undef $guard;
1463	return find $path;	2235	return find $path;
1464	}	2236	}
1465		2237
1466	$cf::MAP{$path} = $map	2238	$cf::MAP{$path} = $map
1467	}	2239	}
1468	}	2240	}
1469		2241
1470	sub pre_load { }	2242	sub pre_load { }
1471	sub post_load { }	2243	#sub post_load { } # XS
1472		2244
1473	sub load {	2245	sub load {
1474	my ($self) = @_;	2246	my ($self) = @_;
1475		2247
1476	local $self->{deny_reset} = 1; # loading can take a long time	2248	local $self->{deny_reset} = 1; # loading can take a long time
1477		2249
1478	my $path = $self->{path};	2250	my $path = $self->{path};
		2251
		2252	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2253	my $guard = cf::lock_acquire "map_data:$path";
1480		2254
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2255	return unless $self->valid;
		2256	return unless $self->state == cf::MAP_SWAPPED;
1482		2257
1483	$self->in_memory (cf::MAP_LOADING);
1484
1485	$self->alloc;	2258	$self->alloc;
1486		2259
1487	$self->pre_load;	2260	$self->pre_load;
1488	Coro::cede;	2261	cf::cede_to_tick;
1489		2262
1490	$self->_load_objects ($self->{load_path}, 1)	2263	if (exists $self->{load_path}) {
		2264	my $f = new_from_file cf::object::thawer $self->{load_path};
		2265	$f->skip_block;
		2266	$self->_load_objects ($f)
1491	or return;	2267	or return;
1492		2268
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2269	$self->post_load_original
1494	if delete $self->{load_original};	2270	if delete $self->{load_original};
1495		2271
1496	if (my $uniq = $self->uniq_path) {	2272	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2273	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2274	unless (aio_stat $uniq) {
		2275	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2276	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2277	$self->_load_objects ($f);
		2278	$f->resolve_delayed_derefs;
		2279	}
		2280	}
1501	}	2281	}
1502	}
1503		2282
1504	Coro::cede;	2283	$f->resolve_delayed_derefs;
		2284	} else {
		2285	$self->post_load_original
		2286	if delete $self->{load_original};
		2287	}
		2288
		2289	$self->state (cf::MAP_INACTIVE);
		2290
		2291	cf::cede_to_tick;
1505	# now do the right thing for maps	2292	# now do the right thing for maps
1506	$self->link_multipart_objects;	2293	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2294	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2295	unless $self->difficulty;
1517	Coro::cede;	2296	cf::cede_to_tick;
1518	$self->activate;	2297
1519	Coro::cede;	2298	unless ($self->{deny_activate}) {
		2299	$self->decay_objects;
		2300	$self->fix_auto_apply;
		2301	$self->update_buttons;
		2302	cf::cede_to_tick;
		2303	#$self->activate; # no longer activate maps automatically
		2304	}
		2305
		2306	$self->{last_save} = $cf::RUNTIME;
		2307	$self->last_access ($cf::RUNTIME);
1520	}	2308	}
1521		2309
1522	$self->post_load;	2310	$self->post_load;
1523	Coro::cede;
1524		2311
1525	$self->in_memory (cf::MAP_IN_MEMORY);	2312	1
1526	}	2313	}
1527		2314
		2315	# customize the map for a given player, i.e.
		2316	# return the _real_ map. used by e.g. per-player
		2317	# maps to change the path to ~playername/mappath
1528	sub customise_for {	2318	sub customise_for {
1529	my ($self, $ob) = @_;	2319	my ($self, $ob) = @_;
1530		2320
1531	return find "~" . $ob->name . "/" . $self->{path}	2321	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2322	if $self->per_player;
1533		2323
		2324	# return find "?party/" . $ob->name . "/" . $self->{path}
		2325	# if $self->per_party;
		2326
1534	$self	2327	$self
1535	}
1536
1537	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {
1539	my ($map) = @_;
1540
1541	my @diag; # diagonal neighbours
1542
1543	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)
1545	or next;
1546	$neigh = find $neigh, $map
1547	or next;
1548	$neigh->load;
1549
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}
1553
1554	for (@diag) {
1555	my $neigh = find @$_
1556	or next;
1557	$neigh->load;
1558	}
1559	}	2328	}
1560		2329
1561	sub find_sync {	2330	sub find_sync {
1562	my ($path, $origin) = @_;	2331	my ($path, $origin) = @_;
1563		2332
1564	cf::sync_job { find $path, $origin }	2333	# it's a bug to call this from the main context
		2334	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2335	if $Coro::current == $Coro::main;
		2336
		2337	find $path, $origin
1565	}	2338	}
1566		2339
1567	sub do_load_sync {	2340	sub do_load_sync {
1568	my ($map) = @_;	2341	my ($map) = @_;
1569		2342
1570	cf::sync_job { $map->load };	2343	# it's a bug to call this from the main context
		2344	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2345	if $Coro::current == $Coro::main;
		2346
		2347	$map->load;
1571	}	2348	}
1572		2349
1573	our %MAP_PREFETCH;	2350	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2351	our $MAP_PREFETCHER = undef;
1575		2352
1576	sub find_async {	2353	sub find_async {
1577	my ($path, $origin) = @_;	2354	my ($path, $origin, $load) = @_;
1578		2355
1579	$path = normalise $path, $origin && $origin->{path};	2356	$path = normalise $path, $origin;
1580		2357
1581	if (my $map = $cf::MAP{$path}) {	2358	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2359	return $map if !$load || $map->linkable;
1583	}	2360	}
1584		2361
1585	undef $MAP_PREFETCH{$path};	2362	$MAP_PREFETCH{$path} |= $load;
		2363
1586	$MAP_PREFETCHER ||= cf::async {	2364	$MAP_PREFETCHER ||= cf::async {
		2365	$Coro::current->{desc} = "map prefetcher";
		2366
1587	while (%MAP_PREFETCH) {	2367	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2368	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2369	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2370	$map->load if $v;
		2371	}
1592		2372
1593	delete $MAP_PREFETCH{$path};	2373	delete $MAP_PREFETCH{$k};
1594	}	2374	}
1595	}	2375	}
1596	undef $MAP_PREFETCHER;	2376	undef $MAP_PREFETCHER;
1597	};	2377	};
1598	$MAP_PREFETCHER->prio (6);	2378	$MAP_PREFETCHER->prio (6);
1599		2379
1600	()	2380	()
1601	}	2381	}
1602		2382
		2383	# common code, used by both ->save and ->swapout
1603	sub save {	2384	sub _save {
1604	my ($self) = @_;	2385	my ($self) = @_;
1605
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;
1607		2386
1608	$self->{last_save} = $cf::RUNTIME;	2387	$self->{last_save} = $cf::RUNTIME;
1609		2388
1610	return unless $self->dirty;	2389	return unless $self->dirty;
1611		2390
…		…
1617	return if $self->{deny_save};	2396	return if $self->{deny_save};
1618		2397
1619	local $self->{last_access} = $self->last_access;#d#	2398	local $self->{last_access} = $self->last_access;#d#
1620		2399
1621	cf::async {	2400	cf::async {
		2401	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2402	$_->contr->save for $self->players;
1623	};	2403	};
		2404
		2405	cf::get_slot 0.02;
1624		2406
1625	if ($uniq) {	2407	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2408	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2409	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2410	} else {
1629	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2411	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1630	}	2412	}
1631	}	2413	}
1632		2414
		2415	sub save {
		2416	my ($self) = @_;
		2417
		2418	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2419
		2420	$self->_save;
		2421	}
		2422
1633	sub swap_out {	2423	sub swap_out {
1634	my ($self) = @_;	2424	my ($self) = @_;
1635		2425
1636	# save first because save cedes
1637	$self->save;
1638
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2426	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2427
		2428	return if !$self->linkable;
		2429	return if $self->{deny_save};
1641	return if $self->players;	2430	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;
1643	return if $self->{deny_save};
1644		2431
		2432	# first deactivate the map and "unlink" it from the core
		2433	$self->deactivate;
		2434	$_->clear_links_to ($self) for values %cf::MAP;
		2435	$self->state (cf::MAP_SWAPPED);
		2436
		2437	# then atomically save
		2438	$self->_save;
		2439
		2440	# then free the map
1645	$self->clear;	2441	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2442	}
1648		2443
1649	sub reset_at {	2444	sub reset_at {
1650	my ($self) = @_;	2445	my ($self) = @_;
1651		2446
1652	# TODO: safety, remove and allow resettable per-player maps	2447	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2448	return 1e99 if $self->{deny_reset};
1655		2449
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2450	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2451	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2452
…		…
1669	my ($self) = @_;	2463	my ($self) = @_;
1670		2464
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2465	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2466
1673	return if $self->players;	2467	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2468
1676	warn "resetting map ", $self->path;#d#	2469	cf::trace "resetting map ", $self->path, "\n";
1677		2470
1678	$self->in_memory (cf::MAP_SWAPPED);	2471	$self->state (cf::MAP_SWAPPED);
1679		2472
1680	# need to save uniques path	2473	# need to save uniques path
1681	unless ($self->{deny_save}) {	2474	unless ($self->{deny_save}) {
1682	my $uniq = $self->uniq_path; utf8::encode $uniq;	2475	my $uniq = $self->uniq_path; utf8::encode $uniq;
1683		2476
…		…
1685	if $uniq;	2478	if $uniq;
1686	}	2479	}
1687		2480
1688	delete $cf::MAP{$self->path};	2481	delete $cf::MAP{$self->path};
1689		2482
		2483	$self->deactivate;
		2484	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2485	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2486
1694	$self->unlink_save;	2487	$self->unlink_save;
1695	$self->destroy;	2488	$self->destroy;
1696	}	2489	}
1697		2490
1698	my $nuke_counter = "aaaa";	2491	my $nuke_counter = "aaaa";
1699		2492
1700	sub nuke {	2493	sub nuke {
1701	my ($self) = @_;	2494	my ($self) = @_;
1702		2495
		2496	{
		2497	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2498
1703	delete $cf::MAP{$self->path};	2499	delete $cf::MAP{$self->path};
1704		2500
1705	$self->unlink_save;	2501	$self->unlink_save;
1706		2502
1707	bless $self, "cf::map";	2503	bless $self, "cf::map::wrap";
1708	delete $self->{deny_reset};	2504	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2505	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2506	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2507	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2508
1713	$cf::MAP{$self->path} = $self;	2509	$cf::MAP{$self->path} = $self;
		2510	}
1714		2511
1715	$self->reset; # polite request, might not happen	2512	$self->reset; # polite request, might not happen
		2513	}
		2514
		2515	=item $maps = cf::map::tmp_maps
		2516
		2517	Returns an arrayref with all map paths of currently instantiated and saved
		2518	maps. May block.
		2519
		2520	=cut
		2521
		2522	sub tmp_maps() {
		2523	[
		2524	map {
		2525	utf8::decode $_;
		2526	/\.map$/
		2527	? normalise $_
		2528	: ()
		2529	} @{ aio_readdir $TMPDIR or [] }
		2530	]
		2531	}
		2532
		2533	=item $maps = cf::map::random_maps
		2534
		2535	Returns an arrayref with all map paths of currently instantiated and saved
		2536	random maps. May block.
		2537
		2538	=cut
		2539
		2540	sub random_maps() {
		2541	[
		2542	map {
		2543	utf8::decode $_;
		2544	/\.map$/
		2545	? normalise "?random/$_"
		2546	: ()
		2547	} @{ aio_readdir $RANDOMDIR or [] }
		2548	]
1716	}	2549	}
1717		2550
1718	=item cf::map::unique_maps	2551	=item cf::map::unique_maps
1719		2552
1720	Returns an arrayref of paths of all shared maps that have	2553	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2554	instantiated unique items. May block.
1722		2555
1723	=cut	2556	=cut
1724		2557
1725	sub unique_maps() {	2558	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2559	[
1727	or return;	2560	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2561	utf8::decode $_;
1733	next if /\.pst$/;	2562	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2563	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2564	? ()
1736	push @paths, cf::map::normalise $_;	2565	: normalise $_
		2566	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2567	]
1738
1739	\@paths
1740	}	2568	}
1741		2569
1742	package cf;	2570	=item cf::map::static_maps
		2571
		2572	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2573	file in the shared directory excluding F</styles> and F</editor>). May
		2574	block.
		2575
		2576	=cut
		2577
		2578	sub static_maps() {
		2579	my @dirs = "";
		2580	my @maps;
		2581
		2582	while (@dirs) {
		2583	my $dir = shift @dirs;
		2584
		2585	next if $dir eq "/styles" || $dir eq "/editor";
		2586
		2587	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2588	or return;
		2589
		2590	for (@$files) {
		2591	s/\.map$// or next;
		2592	utf8::decode $_;
		2593	push @maps, "$dir/$_";
		2594	}
		2595
		2596	push @dirs, map "$dir/$_", @$dirs;
		2597	}
		2598
		2599	\@maps
		2600	}
1743		2601
1744	=back	2602	=back
1745		2603
1746	=head3 cf::object	2604	=head3 cf::object
1747		2605
…		…
1751		2609
1752	=over 4	2610	=over 4
1753		2611
1754	=item $ob->inv_recursive	2612	=item $ob->inv_recursive
1755		2613
1756	Returns the inventory of the object _and_ their inventories, recursively.	2614	Returns the inventory of the object I<and> their inventories, recursively,
		2615	but I<not> the object itself.
1757		2616
1758	=cut	2617	=cut
1759		2618
1760	sub inv_recursive_;	2619	sub inv_recursive_;
1761	sub inv_recursive_ {	2620	sub inv_recursive_ {
…		…
1764		2623
1765	sub inv_recursive {	2624	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2625	inv_recursive_ inv $_[0]
1767	}	2626	}
1768		2627
		2628	=item $ref = $ob->ref
		2629
		2630	Creates and returns a persistent reference to an object that can be stored as a string.
		2631
		2632	=item $ob = cf::object::deref ($refstring)
		2633
		2634	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2635	even if the object actually exists. May block.
		2636
		2637	=cut
		2638
		2639	sub deref {
		2640	my ($ref) = @_;
		2641
		2642	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2643	my ($uuid, $name) = ($1, $2);
		2644	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2645	or return;
		2646	$pl->ob->uuid eq $uuid
		2647	or return;
		2648
		2649	$pl->ob
		2650	} else {
		2651	warn "$ref: cannot resolve object reference\n";
		2652	undef
		2653	}
		2654	}
		2655
1769	package cf;	2656	package cf;
1770		2657
1771	=back	2658	=back
1772		2659
1773	=head3 cf::object::player	2660	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2666	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2667	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2668	dialogue with the given NPC character.
1782		2669
1783	=cut	2670	=cut
		2671
		2672	our $SAY_CHANNEL = {
		2673	id => "say",
		2674	title => "Map",
		2675	reply => "say ",
		2676	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2677	};
		2678
		2679	our $CHAT_CHANNEL = {
		2680	id => "chat",
		2681	title => "Chat",
		2682	reply => "chat ",
		2683	tooltip => "Player chat and shouts, global to the server.",
		2684	};
1784		2685
1785	# rough implementation of a future "reply" method that works	2686	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2687	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2688	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2689	sub cf::object::player::reply($$$;$) {
…		…
1790		2691
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2692	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2693
1793	if ($self->{record_replies}) {	2694	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2695	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2696
1795	} else {	2697	} else {
		2698	my $pl = $self->contr;
		2699
		2700	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2701	my $dialog = $pl->{npc_dialog};
		2702	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2703
		2704	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2705	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2706	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2707	}
1798	}	2708	}
		2709	}
		2710
		2711	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2712
		2713	=cut
		2714
		2715	sub cf::object::send_msg {
		2716	my $pl = shift->contr
		2717	or return;
		2718	$pl->send_msg (@_);
1799	}	2719	}
1800		2720
1801	=item $player_object->may ("access")	2721	=item $player_object->may ("access")
1802		2722
1803	Returns wether the given player is authorized to access resource "access"	2723	Returns wether the given player is authorized to access resource "access"
…		…
1816		2736
1817	=item $player_object->enter_link	2737	=item $player_object->enter_link
1818		2738
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2739	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2740
1821	The player should be reasonably safe there for short amounts of time. You	2741	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2742	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2743	though, as the player cannot control the character while it is on the link
		2744	map.
1823		2745
1824	Will never block.	2746	Will never block.
1825		2747
1826	=item $player_object->leave_link ($map, $x, $y)	2748	=item $player_object->leave_link ($map, $x, $y)
1827		2749
…		…
1847	sub cf::object::player::enter_link {	2769	sub cf::object::player::enter_link {
1848	my ($self) = @_;	2770	my ($self) = @_;
1849		2771
1850	$self->deactivate_recursive;	2772	$self->deactivate_recursive;
1851		2773
		2774	++$self->{_link_recursion};
		2775
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2776	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2777
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2779	if $self->map && $self->map->{path} ne "{link}";
1856		2780
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2781	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1858	}	2782	}
1859		2783
1860	sub cf::object::player::leave_link {	2784	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2785	my ($self, $map, $x, $y) = @_;
		2786
		2787	return unless $self->contr->active;
1862		2788
1863	my $link_pos = delete $self->{_link_pos};	2789	my $link_pos = delete $self->{_link_pos};
1864		2790
1865	unless ($map) {	2791	unless ($map) {
1866	# restore original map position	2792	# restore original map position
…		…
1877	($x, $y) = (-1, -1)	2803	($x, $y) = (-1, -1)
1878	unless (defined $x) && (defined $y);	2804	unless (defined $x) && (defined $y);
1879		2805
1880	# use -1 or undef as default coordinates, not 0, 0	2806	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2807	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2808	if $x <= 0 && $y <= 0;
1883		2809
1884	$map->load;	2810	$map->load;
1885	$map->load_diag;
1886		2811
1887	return unless $self->contr->active;	2812	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2813
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2814	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2815	if ($self->enter_map ($map, $x, $y)) {
1892	}	2816	# entering was successful
1893		2817	delete $self->{_link_recursion};
1894	cf::player->attach (	2818	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2819	$self->activate_recursive;
1896	my ($pl) = @_;
1897
1898	# abort map switching before logout
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},	2820	}
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2821
1908	# try to abort aborted map switching on player login :)	2822	}
1909	# should happen only on crashes
1910	if ($pl->ob->{_link_pos}) {
1911	$pl->ob->enter_link;
1912	(async {
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2823
1926	=item $player_object->goto ($path, $x, $y)	2824	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1927		2825
		2826	Moves the player to the given map-path and coordinates by first freezing
		2827	her, loading and preparing them map, calling the provided $check callback
		2828	that has to return the map if sucecssful, and then unfreezes the player on
		2829	the new (success) or old (failed) map position. In either case, $done will
		2830	be called at the end of this process.
		2831
		2832	Note that $check will be called with a potentially non-loaded map, so if
		2833	it needs a loaded map it has to call C<< ->load >>.
		2834
1928	=cut	2835	=cut
		2836
		2837	our $GOTOGEN;
1929		2838
1930	sub cf::object::player::goto {	2839	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2840	my ($self, $path, $x, $y, $check, $done) = @_;
		2841
		2842	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2843	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2844	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2845	($path, $x, $y) = @$EMERGENCY_POSITION;
		2846	}
		2847
		2848	# do generation counting so two concurrent goto's will be executed in-order
		2849	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2850
1933	$self->enter_link;	2851	$self->enter_link;
1934		2852
1935	(async {	2853	(async {
		2854	$Coro::current->{desc} = "player::goto $path $x $y";
		2855
		2856	# *tag paths override both path and x|y
		2857	if ($path =~ /^\*(.*)$/) {
		2858	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2859	my $ob = $obs[rand @obs];
		2860
		2861	# see if we actually can go there
		2862	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2863	$ob = $obs[rand @obs];
		2864	} else {
		2865	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2866	}
		2867	# else put us there anyways for now #d#
		2868
		2869	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2870	} else {
		2871	($path, $x, $y) = (undef, undef, undef);
		2872	}
		2873	}
		2874
1936	my $map = eval {	2875	my $map = eval {
1937	my $map = cf::map::find $path;	2876	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2877
		2878	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2879	$map = $map->customise_for ($self);
		2880	$map = $check->($map, $x, $y, $self) if $check && $map;
		2881	} else {
		2882	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2883	}
		2884
1939	$map	2885	$map
		2886	};
		2887
		2888	if ($@) {
		2889	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2890	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2891	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2892
		2893	if ($gen == $self->{_goto_generation}) {
		2894	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2895	$self->leave_link ($map, $x, $y);
		2896	}
		2897
		2898	$done->($self) if $done;
1944	})->prio (1);	2899	})->prio (1);
1945	}	2900	}
1946		2901
1947	=item $player_object->enter_exit ($exit_object)	2902	=item $player_object->enter_exit ($exit_object)
1948		2903
…		…
1968	}	2923	}
1969		2924
1970	sub prepare_random_map {	2925	sub prepare_random_map {
1971	my ($exit) = @_;	2926	my ($exit) = @_;
1972		2927
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2928	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2929	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2930	# that depends on the exit object
1978		2931
1979	my $rmp = parse_random_map_params $exit->msg;	2932	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2934	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2935	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2936	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2937	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2938	$rmp->{origin_y} = $exit->y;
		2939
		2940	$exit->map->touch;
1986	}	2941	}
1987		2942
1988	$rmp->{random_seed} ||= $exit->random_seed;	2943	$rmp->{random_seed} ||= $exit->random_seed;
1989		2944
1990	my $data = cf::to_json $rmp;	2945	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2946	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2947	my $meta = "$RANDOMDIR/$md5.meta";
1993		2948
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2949	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2950	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2951	undef $fh;
1997	aio_rename "$meta~", $meta;	2952	aio_rename "$meta~", $meta;
1998		2953
		2954	my $slaying = "?random/$md5";
		2955
		2956	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2957	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2958	$exit->msg (undef);
		2959	}
2001	}	2960	}
2002	}	2961	}
2003		2962
2004	sub cf::object::player::enter_exit {	2963	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2964	my ($self, $exit) = @_;
2006		2965
2007	return unless $self->type == cf::PLAYER;	2966	return unless $self->type == cf::PLAYER;
2008		2967
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2968	$self->enter_link;
2021		2969
2022	(async {	2970	(async {
2023	$self->deactivate_recursive; # just to be sure	2971	$Coro::current->{desc} = "enter_exit";
		2972
2024	unless (eval {	2973	unless (eval {
		2974	$self->deactivate_recursive; # just to be sure
		2975
		2976	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2977	my $x = $exit->stats->hp;
		2978	my $y = $exit->stats->sp;
		2979
		2980	# special map handling
		2981	my $slaying = $exit->slaying;
		2982
		2983	# special map handling
		2984	if ($slaying eq "/!") {
		2985	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2986
		2987	prepare_random_map $exit
		2988	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2989
		2990	$map = $exit->slaying;
		2991
		2992	} elsif ($slaying eq '!up') {
		2993	$map = $exit->map->tile_path (cf::TILE_UP);
		2994	$x = $exit->x;
		2995	$y = $exit->y;
		2996
		2997	} elsif ($slaying eq '!down') {
		2998	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2999	$x = $exit->x;
		3000	$y = $exit->y;
		3001	}
		3002
2025	$self->goto ($slaying, $hp, $sp);	3003	$self->goto ($map, $x, $y);
2026		3004
		3005	# if exit is damned, update players death & WoR home-position
		3006	$self->contr->savebed ($map, $x, $y)
		3007	if $exit->flag (cf::FLAG_DAMNED);
		3008
2027	1;	3009	1
2028	}) {	3010	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	3011	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	3012	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	3013	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	3014	cf::NDI_UNIQUE | cf::NDI_RED);
2033		3015
2034	warn "ERROR in enter_exit: $@";	3016	error "ERROR in enter_exit: $@";
2035	$self->leave_link;	3017	$self->leave_link;
2036	}	3018	}
2037	})->prio (1);	3019	})->prio (1);
2038	}	3020	}
2039		3021
…		…
2053		3035
2054	utf8::encode $text;	3036	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3037	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	3038	}
2057		3039
		3040	=item $client->send_big_packet ($pkt)
		3041
		3042	Like C<send_packet>, but tries to compress large packets, and fragments
		3043	them as required.
		3044
		3045	=cut
		3046
		3047	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3048
		3049	sub cf::client::send_big_packet {
		3050	my ($self, $pkt) = @_;
		3051
		3052	# try lzf for large packets
		3053	$pkt = "lzf " . Compress::LZF::compress $pkt
		3054	if 1024 <= length $pkt and $self->{can_lzf};
		3055
		3056	# split very large packets
		3057	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3058	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3059	$pkt = "frag";
		3060	}
		3061
		3062	$self->send_packet ($pkt);
		3063	}
		3064
		3065	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3066
		3067	Send a drawinfo or msg packet to the client, formatting the msg for the
		3068	client if neccessary. C<$type> should be a string identifying the type of
		3069	the message, with C<log> being the default. If C<$color> is negative, suppress
		3070	the message unless the client supports the msg packet.
		3071
		3072	=cut
		3073
		3074	# non-persistent channels (usually the info channel)
		3075	our %CHANNEL = (
		3076	"c/motd" => {
		3077	id => "infobox",
		3078	title => "MOTD",
		3079	reply => undef,
		3080	tooltip => "The message of the day",
		3081	},
		3082	"c/identify" => {
		3083	id => "infobox",
		3084	title => "Identify",
		3085	reply => undef,
		3086	tooltip => "Items recently identified",
		3087	},
		3088	"c/examine" => {
		3089	id => "infobox",
		3090	title => "Examine",
		3091	reply => undef,
		3092	tooltip => "Signs and other items you examined",
		3093	},
		3094	"c/shopinfo" => {
		3095	id => "infobox",
		3096	title => "Shop Info",
		3097	reply => undef,
		3098	tooltip => "What your bargaining skill tells you about the shop",
		3099	},
		3100	"c/book" => {
		3101	id => "infobox",
		3102	title => "Book",
		3103	reply => undef,
		3104	tooltip => "The contents of a note or book",
		3105	},
		3106	"c/lookat" => {
		3107	id => "infobox",
		3108	title => "Look",
		3109	reply => undef,
		3110	tooltip => "What you saw there",
		3111	},
		3112	"c/who" => {
		3113	id => "infobox",
		3114	title => "Players",
		3115	reply => undef,
		3116	tooltip => "Shows players who are currently online",
		3117	},
		3118	"c/body" => {
		3119	id => "infobox",
		3120	title => "Body Parts",
		3121	reply => undef,
		3122	tooltip => "Shows which body parts you posess and are available",
		3123	},
		3124	"c/statistics" => {
		3125	id => "infobox",
		3126	title => "Statistics",
		3127	reply => undef,
		3128	tooltip => "Shows your primary statistics",
		3129	},
		3130	"c/skills" => {
		3131	id => "infobox",
		3132	title => "Skills",
		3133	reply => undef,
		3134	tooltip => "Shows your experience per skill and item power",
		3135	},
		3136	"c/shopitems" => {
		3137	id => "infobox",
		3138	title => "Shop Items",
		3139	reply => undef,
		3140	tooltip => "Shows the items currently for sale in this shop",
		3141	},
		3142	"c/resistances" => {
		3143	id => "infobox",
		3144	title => "Resistances",
		3145	reply => undef,
		3146	tooltip => "Shows your resistances",
		3147	},
		3148	"c/pets" => {
		3149	id => "infobox",
		3150	title => "Pets",
		3151	reply => undef,
		3152	tooltip => "Shows information abotu your pets/a specific pet",
		3153	},
		3154	"c/perceiveself" => {
		3155	id => "infobox",
		3156	title => "Perceive Self",
		3157	reply => undef,
		3158	tooltip => "You gained detailed knowledge about yourself",
		3159	},
		3160	"c/uptime" => {
		3161	id => "infobox",
		3162	title => "Uptime",
		3163	reply => undef,
		3164	tooltip => "How long the server has been running since last restart",
		3165	},
		3166	"c/mapinfo" => {
		3167	id => "infobox",
		3168	title => "Map Info",
		3169	reply => undef,
		3170	tooltip => "Information related to the maps",
		3171	},
		3172	"c/party" => {
		3173	id => "party",
		3174	title => "Party",
		3175	reply => "gsay ",
		3176	tooltip => "Messages and chat related to your party",
		3177	},
		3178	"c/death" => {
		3179	id => "death",
		3180	title => "Death",
		3181	reply => undef,
		3182	tooltip => "Reason for and more info about your most recent death",
		3183	},
		3184	"c/say" => $SAY_CHANNEL,
		3185	"c/chat" => $CHAT_CHANNEL,
		3186	);
		3187
		3188	sub cf::client::send_msg {
		3189	my ($self, $channel, $msg, $color, @extra) = @_;
		3190
		3191	$msg = $self->pl->expand_cfpod ($msg)
		3192	unless $color & cf::NDI_VERBATIM;
		3193
		3194	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3195
		3196	# check predefined channels, for the benefit of C
		3197	if ($CHANNEL{$channel}) {
		3198	$channel = $CHANNEL{$channel};
		3199
		3200	$self->ext_msg (channel_info => $channel);
		3201	$channel = $channel->{id};
		3202
		3203	} elsif (ref $channel) {
		3204	# send meta info to client, if not yet sent
		3205	unless (exists $self->{channel}{$channel->{id}}) {
		3206	$self->{channel}{$channel->{id}} = $channel;
		3207	$self->ext_msg (channel_info => $channel);
		3208	}
		3209
		3210	$channel = $channel->{id};
		3211	}
		3212
		3213	return unless @extra || length $msg;
		3214
		3215	# default colour, mask it out
		3216	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3217	if $color & cf::NDI_DEF;
		3218
		3219	my $pkt = "msg "
		3220	. $self->{json_coder}->encode (
		3221	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3222	);
		3223
		3224	$self->send_big_packet ($pkt);
		3225	}
		3226
2058	=item $client->ext_event ($type, %msg)	3227	=item $client->ext_msg ($type, @msg)
2059		3228
2060	Sends an exti event to the client.	3229	Sends an ext event to the client.
2061		3230
2062	=cut	3231	=cut
2063		3232
2064	sub cf::client::ext_event($$%) {	3233	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	3234	my ($self, $type, @msg) = @_;
2066		3235
		3236	if ($self->extcmd == 2) {
		3237	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3238	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	3239	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	3240	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3241	}
		3242	}
		3243
		3244	=item $client->ext_reply ($msgid, @msg)
		3245
		3246	Sends an ext reply to the client.
		3247
		3248	=cut
		3249
		3250	sub cf::client::ext_reply($$@) {
		3251	my ($self, $id, @msg) = @_;
		3252
		3253	return unless $self->extcmd == 2;
		3254
		3255	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2069	}	3256	}
2070		3257
2071	=item $success = $client->query ($flags, "text", \&cb)	3258	=item $success = $client->query ($flags, "text", \&cb)
2072		3259
2073	Queues a query to the client, calling the given callback with	3260	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3261	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3262	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		3263
2077	Queries can fail, so check the return code. Or don't, as queries will become	3264	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	3265	become reliable at some point in the future.
2079		3266
2080	=cut	3267	=cut
2081		3268
2082	sub cf::client::query {	3269	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	3270	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	3278	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3279	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		3280
2094	$self->send_packet ($self->{query_queue}[0][0])	3281	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	3282	if @{ $self->{query_queue} } == 1;
		3283
		3284	1
2096	}	3285	}
2097		3286
2098	cf::client->attach (	3287	cf::client->attach (
		3288	on_connect => sub {
		3289	my ($ns) = @_;
		3290
		3291	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3292	},
2099	on_reply => sub {	3293	on_reply => sub {
2100	my ($ns, $msg) = @_;	3294	my ($ns, $msg) = @_;
2101		3295
2102	# this weird shuffling is so that direct followup queries	3296	# this weird shuffling is so that direct followup queries
2103	# get handled first	3297	# get handled first
…		…
2115	} else {	3309	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3310	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	3311	}
2118	}	3312	}
2119	},	3313	},
		3314	on_exticmd => sub {
		3315	my ($ns, $buf) = @_;
		3316
		3317	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3318
		3319	if (ref $msg) {
		3320	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3321
		3322	my @reply;
		3323
		3324	if (my $cb = $EXTICMD{$type}) {
		3325	@reply = $cb->($ns, @payload);
		3326	}
		3327
		3328	$ns->ext_reply ($reply, @reply)
		3329	if $reply;
		3330
		3331	} else {
		3332	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3333	}
		3334
		3335	cf::override;
		3336	},
2120	);	3337	);
2121		3338
2122	=item $client->async (\&cb)	3339	=item $client->async (\&cb)
2123		3340
2124	Create a new coroutine, running the specified callback. The coroutine will	3341	Create a new coroutine, running the specified callback. The coroutine will
…		…
2140		3357
2141	$coro	3358	$coro
2142	}	3359	}
2143		3360
2144	cf::client->attach (	3361	cf::client->attach (
2145	on_destroy => sub {	3362	on_client_destroy => sub {
2146	my ($ns) = @_;	3363	my ($ns) = @_;
2147		3364
2148	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3365	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2149	},	3366	},
2150	);	3367	);
…		…
2165	our $safe = new Safe "safe";	3382	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3383	our $safe_hole = new Safe::Hole;
2167		3384
2168	$SIG{FPE} = 'IGNORE';	3385	$SIG{FPE} = 'IGNORE';
2169		3386
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3387	$safe->permit_only (Opcode::opset qw(
		3388	:base_core :base_mem :base_orig :base_math :base_loop
		3389	grepstart grepwhile mapstart mapwhile
		3390	sort time
		3391	));
2171		3392
2172	# here we export the classes and methods available to script code	3393	# here we export the classes and methods available to script code
2173		3394
2174	=pod	3395	=pod
2175		3396
2176	The following functions and methods are available within a safe environment:	3397	The following functions and methods are available within a safe environment:
2177		3398
2178	cf::object contr pay_amount pay_player map	3399	cf::object
		3400	contr pay_amount pay_player map x y force_find force_add destroy
		3401	insert remove name archname title slaying race decrease split
		3402	value
		3403
2179	cf::object::player player	3404	cf::object::player
2180	cf::player peaceful	3405	player
2181	cf::map trigger	3406
		3407	cf::player
		3408	peaceful
		3409
		3410	cf::map
		3411	trigger
2182		3412
2183	=cut	3413	=cut
2184		3414
2185	for (	3415	for (
2186	["cf::object" => qw(contr pay_amount pay_player map)],	3416	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3417	insert remove inv nrof name archname title slaying race
		3418	decrease split destroy change_exp value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3419	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3420	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3421	["cf::map" => qw(trigger)],
2190	) {	3422	) {
2191	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3423	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3424	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2194	for @funs;	3425	for @funs;
2195	}	3426	}
2196		3427
…		…
2211		3442
2212	my $qcode = $code;	3443	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3444	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3445	$qcode =~ s/\n/\\n/g;
2215		3446
		3447	%vars = (_dummy => 0) unless %vars;
		3448
		3449	my @res;
2216	local $_;	3450	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;
2218		3451
2219	my $eval =	3452	my $eval =
2220	"do {\n"	3453	"do {\n"
2221	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3454	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2222	. "#line 0 \"{$qcode}\"\n"	3455	. "#line 0 \"{$qcode}\"\n"
2223	. $code	3456	. $code
2224	. "\n}"	3457	. "\n}"
2225	;	3458	;
2226		3459
		3460	if ($CFG{safe_eval}) {
2227	sub_generation_inc;	3461	sub_generation_inc;
		3462	local @safe::cf::_safe_eval_args = values %vars;
2228	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3463	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2229	sub_generation_inc;	3464	sub_generation_inc;
		3465	} else {
		3466	local @cf::_safe_eval_args = values %vars;
		3467	@res = wantarray ? eval eval : scalar eval $eval;
		3468	}
2230		3469
2231	if ($@) {	3470	if ($@) {
2232	warn "$@";	3471	warn "$@",
2233	warn "while executing safe code '$code'\n";	3472	"while executing safe code '$code'\n",
2234	warn "with arguments " . (join " ", %vars) . "\n";	3473	"with arguments " . (join " ", %vars) . "\n";
2235	}	3474	}
2236		3475
2237	wantarray ? @res : $res[0]	3476	wantarray ? @res : $res[0]
2238	}	3477	}
2239		3478
…		…
2253	=cut	3492	=cut
2254		3493
2255	sub register_script_function {	3494	sub register_script_function {
2256	my ($fun, $cb) = @_;	3495	my ($fun, $cb) = @_;
2257		3496
2258	no strict 'refs';	3497	$fun = "safe::$fun" if $CFG{safe_eval};
2259	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3498	*$fun = $safe_hole->wrap ($cb);
2260	}	3499	}
2261		3500
2262	=back	3501	=back
2263		3502
2264	=cut	3503	=cut
2265
2266	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	local $SIG{__WARN__};
2420	eval {
2421	local $SIG{__DIE__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	warn $@ if $@;
2429	_exit 0;
2430	}
2431	}
2432
2433
2434		3504
2435	#############################################################################	3505	#############################################################################
2436	# the server's init and main functions	3506	# the server's init and main functions
2437		3507
		3508	our %FACEHASH; # hash => idx, #d# HACK for http server
		3509
2438	sub load_facedata($) {	3510	sub load_facedata($) {
2439	my ($path) = @_;	3511	my ($path) = @_;
2440		3512
		3513	# HACK to clear player env face cache, we need some signal framework
		3514	# for this (global event?)
		3515	%ext::player_env::MUSIC_FACE_CACHE = ();
		3516
		3517	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3518
2441	warn "loading facedata from $path\n";	3519	trace "loading facedata from $path\n";
2442		3520
2443	my $facedata;	3521	my $facedata = decode_storable load_file $path;
2444	0 < aio_load $path, $facedata
2445	or die "$path: $!";
2446
2447	$facedata = Coro::Storable::thaw $facedata;
2448		3522
2449	$facedata->{version} == 2	3523	$facedata->{version} == 2
2450	or cf::cleanup "$path: version mismatch, cannot proceed.";	3524	or cf::cleanup "$path: version mismatch, cannot proceed.";
2451		3525
		3526	# patch in the exptable
		3527	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3528	$facedata->{resource}{"res/exp_table"} = {
		3529	type => FT_RSRC,
		3530	data => $exp_table,
		3531	hash => (Digest::MD5::md5 $exp_table),
		3532	};
		3533	cf::cede_to_tick;
		3534
2452	{	3535	{
2453	my $faces = $facedata->{faceinfo};	3536	my $faces = $facedata->{faceinfo};
2454		3537
2455	while (my ($face, $info) = each %$faces) {	3538	while (my ($face, $info) = each %$faces) {
2456	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3539	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3540
2457	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3541	cf::face::set_visibility $idx, $info->{visibility};
		3542	cf::face::set_magicmap $idx, $info->{magicmap};
2458	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3543	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2459	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3544	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2460	Coro::cede;	3545	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3546	$FACEHASH{$info->{hash64}} = $idx;#d#
		3547
		3548	cf::cede_to_tick;
2461	}	3549	}
2462		3550
2463	while (my ($face, $info) = each %$faces) {	3551	while (my ($face, $info) = each %$faces) {
2464	next unless $info->{smooth};	3552	next unless $info->{smooth};
		3553
2465	my $idx = cf::face::find $face	3554	my $idx = cf::face::find $face
2466	or next;	3555	or next;
		3556
2467	if (my $smooth = cf::face::find $info->{smooth}) {	3557	if (my $smooth = cf::face::find $info->{smooth}) {
		3558	cf::face::set_smooth $idx, $smooth;
2468	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3559	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2469	} else {	3560	} else {
2470	warn "smooth face '$info->{smooth}' not found for face '$face'";	3561	error "smooth face '$info->{smooth}' not found for face '$face'";
2471	}	3562	}
2472	Coro::cede;	3563
		3564	cf::cede_to_tick;
2473	}	3565	}
2474	}	3566	}
2475		3567
2476	{	3568	{
2477	my $anims = $facedata->{animinfo};	3569	my $anims = $facedata->{animinfo};
2478		3570
2479	while (my ($anim, $info) = each %$anims) {	3571	while (my ($anim, $info) = each %$anims) {
2480	cf::anim::set $anim, $info->{frames}, $info->{facings};	3572	cf::anim::set $anim, $info->{frames}, $info->{facings};
2481	Coro::cede;	3573	cf::cede_to_tick;
2482	}	3574	}
2483		3575
2484	cf::anim::invalidate_all; # d'oh	3576	cf::anim::invalidate_all; # d'oh
2485	}	3577	}
2486		3578
		3579	{
		3580	my $res = $facedata->{resource};
		3581
		3582	while (my ($name, $info) = each %$res) {
		3583	if (defined (my $type = $info->{type})) {
		3584	# TODO: different hash - must free and use new index, or cache ixface data queue
		3585	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3586
		3587	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3588	cf::face::set_type $idx, $type;
		3589	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3590	$FACEHASH{$info->{hash}} = $idx;#d#
		3591	} else {
		3592	# $RESOURCE{$name} = $info; # unused
		3593	}
		3594
		3595	cf::cede_to_tick;
		3596	}
		3597	}
		3598
		3599	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3600
2487	1	3601	1
2488	}	3602	}
2489		3603
		3604	register_exticmd fx_want => sub {
		3605	my ($ns, $want) = @_;
		3606
		3607	while (my ($k, $v) = each %$want) {
		3608	$ns->fx_want ($k, $v);
		3609	}
		3610	};
		3611
		3612	sub load_resource_file($) {
		3613	my $guard = lock_acquire "load_resource_file";
		3614
		3615	my $status = load_resource_file_ $_[0];
		3616	get_slot 0.1, 100;
		3617	cf::arch::commit_load;
		3618
		3619	$status
		3620	}
		3621
		3622	sub reload_regions {
		3623	# HACK to clear player env face cache, we need some signal framework
		3624	# for this (global event?)
		3625	%ext::player_env::MUSIC_FACE_CACHE = ();
		3626
		3627	load_resource_file "$MAPDIR/regions"
		3628	or die "unable to load regions file\n";
		3629
		3630	for (cf::region::list) {
		3631	$_->{match} = qr/$_->{match}/
		3632	if exists $_->{match};
		3633	}
		3634	}
		3635
2490	sub reload_facedata {	3636	sub reload_facedata {
2491	load_facedata sprintf "%s/facedata", cf::datadir	3637	load_facedata "$DATADIR/facedata"
2492	or die "unable to load facedata\n";	3638	or die "unable to load facedata\n";
2493	}	3639	}
2494		3640
2495	sub reload_regions {
2496	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2497	or die "unable to load regions file\n";
2498	}
2499
2500	sub reload_archetypes {	3641	sub reload_archetypes {
2501	load_resource_file sprintf "%s/archetypes", cf::datadir	3642	load_resource_file "$DATADIR/archetypes"
2502	or die "unable to load archetypes\n";	3643	or die "unable to load archetypes\n";
2503	}	3644	}
2504		3645
2505	sub reload_treasures {	3646	sub reload_treasures {
2506	load_resource_file sprintf "%s/treasures", cf::datadir	3647	load_resource_file "$DATADIR/treasures"
2507	or die "unable to load treasurelists\n";	3648	or die "unable to load treasurelists\n";
2508	}	3649	}
2509		3650
		3651	sub reload_sound {
		3652	trace "loading sound config from $DATADIR/sound\n";
		3653
		3654	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3655
		3656	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3657	my $sound = $soundconf->{compat}[$_]
		3658	or next;
		3659
		3660	my $face = cf::face::find "sound/$sound->[1]";
		3661	cf::sound::set $sound->[0] => $face;
		3662	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3663	}
		3664
		3665	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3666	my $face = cf::face::find "sound/$v";
		3667	cf::sound::set $k => $face;
		3668	}
		3669	}
		3670
2510	sub reload_resources {	3671	sub reload_resources {
2511	warn "reloading resource files...\n";	3672	trace "reloading resource files...\n";
2512		3673
		3674	reload_exp_table;
		3675	reload_materials;
		3676	reload_facedata;
		3677	reload_sound;
		3678	reload_archetypes;
2513	reload_regions;	3679	reload_regions;
2514	reload_facedata;
2515	reload_archetypes;
2516	reload_treasures;	3680	reload_treasures;
2517		3681
2518	warn "finished reloading resource files\n";	3682	trace "finished reloading resource files\n";
2519	}	3683	}
2520		3684
2521	sub init {	3685	sub reload_config {
2522	reload_resources;	3686	trace "reloading config file...\n";
2523	}
2524		3687
2525	sub cfg_load {	3688	my $config = load_file "$CONFDIR/config";
2526	open my $fh, "<:utf8", cf::confdir . "/config"	3689	utf8::decode $config;
2527	or return;	3690	*CFG = decode_yaml $config;
2528		3691
2529	local $/;
2530	*CFG = YAML::Syck::Load <$fh>;
2531
2532	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3692	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2533		3693
2534	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3694	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2535	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3695	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2536		3696
2537	if (exists $CFG{mlockall}) {	3697	if (exists $CFG{mlockall}) {
…		…
2541	};	3701	};
2542	warn $@ if $@;	3702	warn $@ if $@;
2543	}	3703	}
2544	}	3704	}
2545		3705
		3706	sub pidfile() {
		3707	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3708	or die "$PIDFILE: $!";
		3709	flock $fh, &Fcntl::LOCK_EX
		3710	or die "$PIDFILE: flock: $!";
		3711	$fh
		3712	}
		3713
		3714	# make sure only one server instance is running at any one time
		3715	sub atomic {
		3716	my $fh = pidfile;
		3717
		3718	my $pid = <$fh>;
		3719	kill 9, $pid if $pid > 0;
		3720
		3721	seek $fh, 0, 0;
		3722	print $fh $$;
		3723	}
		3724
		3725	sub main_loop {
		3726	trace "EV::loop starting\n";
		3727	if (1) {
		3728	EV::loop;
		3729	}
		3730	trace "EV::loop returned\n";
		3731	goto &main_loop unless $REALLY_UNLOOP;
		3732	}
		3733
2546	sub main {	3734	sub main {
		3735	cf::init_globals; # initialise logging
		3736
		3737	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3738	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3739	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3740	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3741
		3742	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3743
2547	# we must not ever block the main coroutine	3744	# we must not ever block the main coroutine
2548	local $Coro::idle = sub {	3745	local $Coro::idle = sub {
2549	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3746	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2550	(async {	3747	(async {
2551	Event::one_event;	3748	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3749	EV::loop EV::LOOP_ONESHOT;
2552	})->prio (Coro::PRIO_MAX);	3750	})->prio (Coro::PRIO_MAX);
2553	};	3751	};
2554		3752
2555	cfg_load;	3753	evthread_start IO::AIO::poll_fileno;
		3754
		3755	cf::sync_job {
		3756	cf::incloader::init ();
		3757
		3758	cf::init_anim;
		3759	cf::init_attackmess;
		3760	cf::init_dynamic;
		3761
		3762	cf::load_settings;
		3763
		3764	reload_resources;
		3765	reload_config;
2556	db_init;	3766	db_init;
		3767
		3768	cf::init_uuid;
		3769	cf::init_signals;
		3770	cf::init_skills;
		3771
		3772	cf::init_beforeplay;
		3773
		3774	atomic;
		3775
2557	load_extensions;	3776	load_extensions;
2558		3777
2559	$TICK_WATCHER->start;	3778	utime time, time, $RUNTIMEFILE;
2560	Event::loop;	3779
		3780	# no (long-running) fork's whatsoever before this point(!)
		3781	use POSIX ();
		3782	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3783
		3784	cf::_post_init 0;
		3785	};
		3786
		3787	cf::object::thawer::errors_are_fatal 0;
		3788	info "parse errors in files are no longer fatal from this point on.\n";
		3789
		3790	AE::postpone {
		3791	undef &main; # free gobs of memory :)
		3792	};
		3793
		3794	goto &main_loop;
2561	}	3795	}
2562		3796
2563	#############################################################################	3797	#############################################################################
2564	# initialisation and cleanup	3798	# initialisation and cleanup
2565		3799
2566	# install some emergency cleanup handlers	3800	# install some emergency cleanup handlers
2567	BEGIN {	3801	BEGIN {
		3802	our %SIGWATCHER = ();
2568	for my $signal (qw(INT HUP TERM)) {	3803	for my $signal (qw(INT HUP TERM)) {
2569	Event->signal (	3804	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2570	reentrant => 0,
2571	data => WF_AUTOCANCEL,
2572	signal => $signal,
2573	prio => 0,
2574	cb => sub {
2575	cf::cleanup "SIG$signal";	3805	cf::cleanup "SIG$signal";
2576	},
2577	);	3806	};
		3807	}
		3808	}
		3809
		3810	sub write_runtime_sync {
		3811	my $t0 = AE::time;
		3812
		3813	# first touch the runtime file to show we are still running:
		3814	# the fsync below can take a very very long time.
		3815
		3816	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3817
		3818	my $guard = cf::lock_acquire "write_runtime";
		3819
		3820	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3821	or return;
		3822
		3823	my $value = $cf::RUNTIME + 90 + 10;
		3824	# 10 is the runtime save interval, for a monotonic clock
		3825	# 60 allows for the watchdog to kill the server.
		3826
		3827	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3828	and return;
		3829
		3830	# always fsync - this file is important
		3831	aio_fsync $fh
		3832	and return;
		3833
		3834	# touch it again to show we are up-to-date
		3835	aio_utime $fh, undef, undef;
		3836
		3837	close $fh
		3838	or return;
		3839
		3840	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3841	and return;
		3842
		3843	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3844
2578	}	3845	1
		3846	}
		3847
		3848	our $uuid_lock;
		3849	our $uuid_skip;
		3850
		3851	sub write_uuid_sync($) {
		3852	$uuid_skip ||= $_[0];
		3853
		3854	return if $uuid_lock;
		3855	local $uuid_lock = 1;
		3856
		3857	my $uuid = "$LOCALDIR/uuid";
		3858
		3859	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3860	or return;
		3861
		3862	my $value = uuid_seq uuid_cur;
		3863
		3864	unless ($value) {
		3865	info "cowardly refusing to write zero uuid value!\n";
		3866	return;
		3867	}
		3868
		3869	my $value = uuid_str $value + $uuid_skip;
		3870	$uuid_skip = 0;
		3871
		3872	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3873	and return;
		3874
		3875	# always fsync - this file is important
		3876	aio_fsync $fh
		3877	and return;
		3878
		3879	close $fh
		3880	or return;
		3881
		3882	aio_rename "$uuid~", $uuid
		3883	and return;
		3884
		3885	trace "uuid file written ($value).\n";
		3886
		3887	1
		3888
		3889	}
		3890
		3891	sub write_uuid($$) {
		3892	my ($skip, $sync) = @_;
		3893
		3894	$sync ? write_uuid_sync $skip
		3895	: async { write_uuid_sync $skip };
2579	}	3896	}
2580		3897
2581	sub emergency_save() {	3898	sub emergency_save() {
2582	my $freeze_guard = cf::freeze_mainloop;	3899	my $freeze_guard = cf::freeze_mainloop;
2583		3900
2584	warn "enter emergency perl save\n";	3901	info "emergency_perl_save: enter\n";
		3902
		3903	# this is a trade-off: we want to be very quick here, so
		3904	# save all maps without fsync, and later call a global sync
		3905	# (which in turn might be very very slow)
		3906	local $USE_FSYNC = 0;
2585		3907
2586	cf::sync_job {	3908	cf::sync_job {
		3909	cf::write_runtime_sync; # external watchdog should not bark
		3910
2587	# use a peculiar iteration method to avoid tripping on perl	3911	# use a peculiar iteration method to avoid tripping on perl
2588	# refcount bugs in for. also avoids problems with players	3912	# refcount bugs in for. also avoids problems with players
2589	# and maps saved/destroyed asynchronously.	3913	# and maps saved/destroyed asynchronously.
2590	warn "begin emergency player save\n";	3914	info "emergency_perl_save: begin player save\n";
2591	for my $login (keys %cf::PLAYER) {	3915	for my $login (keys %cf::PLAYER) {
2592	my $pl = $cf::PLAYER{$login} or next;	3916	my $pl = $cf::PLAYER{$login} or next;
2593	$pl->valid or next;	3917	$pl->valid or next;
		3918	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2594	$pl->save;	3919	$pl->save;
2595	}	3920	}
2596	warn "end emergency player save\n";	3921	info "emergency_perl_save: end player save\n";
2597		3922
2598	warn "begin emergency map save\n";	3923	cf::write_runtime_sync; # external watchdog should not bark
		3924
		3925	info "emergency_perl_save: begin map save\n";
2599	for my $path (keys %cf::MAP) {	3926	for my $path (keys %cf::MAP) {
2600	my $map = $cf::MAP{$path} or next;	3927	my $map = $cf::MAP{$path} or next;
2601	$map->valid or next;	3928	$map->valid or next;
2602	$map->save;	3929	$map->save;
2603	}	3930	}
2604	warn "end emergency map save\n";	3931	info "emergency_perl_save: end map save\n";
2605		3932
2606	warn "begin emergency database checkpoint\n";	3933	cf::write_runtime_sync; # external watchdog should not bark
		3934
		3935	info "emergency_perl_save: begin database checkpoint\n";
2607	BDB::db_env_txn_checkpoint $DB_ENV;	3936	BDB::db_env_txn_checkpoint $DB_ENV;
2608	warn "end emergency database checkpoint\n";	3937	info "emergency_perl_save: end database checkpoint\n";
		3938
		3939	info "emergency_perl_save: begin write uuid\n";
		3940	write_uuid_sync 1;
		3941	info "emergency_perl_save: end write uuid\n";
		3942
		3943	cf::write_runtime_sync; # external watchdog should not bark
		3944
		3945	trace "emergency_perl_save: syncing database to disk";
		3946	BDB::db_env_txn_checkpoint $DB_ENV;
		3947
		3948	info "emergency_perl_save: starting sync\n";
		3949	IO::AIO::aio_sync sub {
		3950	info "emergency_perl_save: finished sync\n";
		3951	};
		3952
		3953	cf::write_runtime_sync; # external watchdog should not bark
		3954
		3955	trace "emergency_perl_save: flushing outstanding aio requests";
		3956	while (IO::AIO::nreqs || BDB::nreqs) {
		3957	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3958	}
		3959
		3960	cf::write_runtime_sync; # external watchdog should not bark
2609	};	3961	};
2610		3962
2611	warn "leave emergency perl save\n";	3963	info "emergency_perl_save: leave\n";
2612	}	3964	}
2613		3965
2614	sub post_cleanup {	3966	sub post_cleanup {
2615	my ($make_core) = @_;	3967	my ($make_core) = @_;
2616		3968
		3969	IO::AIO::flush;
		3970
2617	warn Carp::longmess "post_cleanup backtrace"	3971	error Carp::longmess "post_cleanup backtrace"
2618	if $make_core;	3972	if $make_core;
		3973
		3974	my $fh = pidfile;
		3975	unlink $PIDFILE if <$fh> == $$;
		3976	}
		3977
		3978	# a safer delete_package, copied from Symbol
		3979	sub clear_package($) {
		3980	my $pkg = shift;
		3981
		3982	# expand to full symbol table name if needed
		3983	unless ($pkg =~ /^main::.*::$/) {
		3984	$pkg = "main$pkg" if $pkg =~ /^::/;
		3985	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3986	$pkg .= '::' unless $pkg =~ /::$/;
		3987	}
		3988
		3989	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3990	my $stem_symtab = *{$stem}{HASH};
		3991
		3992	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3993	or return;
		3994
		3995	# clear all symbols
		3996	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3997	for my $name (keys %$leaf_symtab) {
		3998	_gv_clear *{"$pkg$name"};
		3999	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4000	}
2619	}	4001	}
2620		4002
2621	sub do_reload_perl() {	4003	sub do_reload_perl() {
2622	# can/must only be called in main	4004	# can/must only be called in main
2623	if ($Coro::current != $Coro::main) {	4005	unless (in_main) {
2624	warn "can only reload from main coroutine";	4006	error "can only reload from main coroutine";
2625	return;	4007	return;
2626	}	4008	}
2627		4009
2628	warn "reloading...";	4010	return if $RELOAD++;
2629		4011
2630	warn "entering sync_job";	4012	my $t1 = AE::time;
2631		4013
		4014	while ($RELOAD) {
		4015	cf::get_slot 0.1, -1, "reload_perl";
		4016	info "perl_reload: reloading...";
		4017
		4018	trace "perl_reload: entering sync_job";
		4019
2632	cf::sync_job {	4020	cf::sync_job {
2633	cf::write_runtime; # external watchdog should not bark
2634	cf::emergency_save;	4021	#cf::emergency_save;
2635	cf::write_runtime; # external watchdog should not bark
2636		4022
2637	warn "syncing database to disk";
2638	BDB::db_env_txn_checkpoint $DB_ENV;
2639
2640	# if anything goes wrong in here, we should simply crash as we already saved
2641
2642	warn "cancelling all WF_AUTOCANCEL watchers";
2643	for (Event::all_watchers) {
2644	$_->cancel if $_->data & WF_AUTOCANCEL;
2645	}
2646
2647	warn "flushing outstanding aio requests";
2648	for (;;) {
2649	BDB::flush;
2650	IO::AIO::flush;
2651	Coro::cede;
2652	last unless IO::AIO::nreqs || BDB::nreqs;
2653	warn "iterate...";
2654	}
2655
2656	++$RELOAD;
2657
2658	warn "cancelling all extension coros";	4023	trace "perl_reload: cancelling all extension coros";
2659	$_->cancel for values %EXT_CORO;	4024	$_->cancel for values %EXT_CORO;
2660	%EXT_CORO = ();	4025	%EXT_CORO = ();
2661		4026
2662	warn "removing commands";	4027	trace "perl_reload: removing commands";
2663	%COMMAND = ();	4028	%COMMAND = ();
2664		4029
2665	warn "removing ext commands";	4030	trace "perl_reload: removing ext/exti commands";
2666	%EXTCMD = ();	4031	%EXTCMD = ();
		4032	%EXTICMD = ();
2667		4033
2668	warn "unloading/nuking all extensions";	4034	trace "perl_reload: unloading/nuking all extensions";
2669	for my $pkg (@EXTS) {	4035	for my $pkg (@EXTS) {
2670	warn "... unloading $pkg";	4036	trace "... unloading $pkg";
2671		4037
2672	if (my $cb = $pkg->can ("unload")) {	4038	if (my $cb = $pkg->can ("unload")) {
2673	eval {	4039	eval {
2674	$cb->($pkg);	4040	$cb->($pkg);
2675	1	4041	1
2676	} or warn "$pkg unloaded, but with errors: $@";	4042	} or error "$pkg unloaded, but with errors: $@";
		4043	}
		4044
		4045	trace "... clearing $pkg";
		4046	clear_package $pkg;
2677	}	4047	}
2678		4048
2679	warn "... nuking $pkg";
2680	Symbol::delete_package $pkg;
2681	}
2682
2683	warn "unloading all perl modules loaded from $LIBDIR";	4049	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2684	while (my ($k, $v) = each %INC) {	4050	while (my ($k, $v) = each %INC) {
2685	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4051	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2686		4052
2687	warn "... unloading $k";	4053	trace "... unloading $k";
2688	delete $INC{$k};	4054	delete $INC{$k};
2689		4055
2690	$k =~ s/\.pm$//;	4056	$k =~ s/\.pm$//;
2691	$k =~ s/\//::/g;	4057	$k =~ s/\//::/g;
2692		4058
2693	if (my $cb = $k->can ("unload_module")) {	4059	if (my $cb = $k->can ("unload_module")) {
2694	$cb->();	4060	$cb->();
		4061	}
		4062
		4063	clear_package $k;
2695	}	4064	}
2696		4065
2697	Symbol::delete_package $k;
2698	}
2699
2700	warn "getting rid of safe::, as good as possible";	4066	trace "perl_reload: getting rid of safe::, as good as possible";
2701	Symbol::delete_package "safe::$_"	4067	clear_package "safe::$_"
2702	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4068	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2703		4069
2704	warn "unloading cf.pm \"a bit\"";	4070	trace "perl_reload: unloading cf.pm \"a bit\"";
2705	delete $INC{"cf.pm"};	4071	delete $INC{"cf.pm"};
		4072	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2706		4073
2707	# don't, removes xs symbols, too,	4074	# don't, removes xs symbols, too,
2708	# and global variables created in xs	4075	# and global variables created in xs
2709	#Symbol::delete_package __PACKAGE__;	4076	#clear_package __PACKAGE__;
2710		4077
2711	warn "unload completed, starting to reload now";	4078	info "perl_reload: unload completed, starting to reload now";
2712		4079
2713	warn "reloading cf.pm";	4080	trace "perl_reload: reloading cf.pm";
2714	require cf;	4081	require cf;
2715	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4082	cf::_connect_to_perl_1;
2716		4083
2717	warn "loading config and database again";	4084	trace "perl_reload: loading config and database again";
2718	cf::cfg_load;	4085	cf::reload_config;
2719		4086
2720	warn "loading extensions";	4087	trace "perl_reload: loading extensions";
2721	cf::load_extensions;	4088	cf::load_extensions;
2722		4089
		4090	if ($REATTACH_ON_RELOAD) {
2723	warn "reattaching attachments to objects/players";	4091	trace "perl_reload: reattaching attachments to objects/players";
2724	_global_reattach; # objects, sockets	4092	_global_reattach; # objects, sockets
2725	warn "reattaching attachments to maps";	4093	trace "perl_reload: reattaching attachments to maps";
2726	reattach $_ for values %MAP;	4094	reattach $_ for values %MAP;
2727	warn "reattaching attachments to players";	4095	trace "perl_reload: reattaching attachments to players";
2728	reattach $_ for values %PLAYER;	4096	reattach $_ for values %PLAYER;
		4097	}
2729		4098
2730	warn "leaving sync_job";	4099	cf::_post_init 1;
2731		4100
		4101	trace "perl_reload: leaving sync_job";
		4102
2732	1	4103	1
2733	} or do {	4104	} or do {
2734	warn $@;	4105	error $@;
2735	warn "error while reloading, exiting.";	4106	cf::cleanup "perl_reload: error, exiting.";
2736	exit 1;	4107	};
		4108
		4109	--$RELOAD;
2737	};	4110	}
2738		4111
2739	warn "reloaded";	4112	$t1 = AE::time - $t1;
		4113	info "perl_reload: completed in ${t1}s\n";
2740	};	4114	};
2741		4115
2742	our $RELOAD_WATCHER; # used only during reload	4116	our $RELOAD_WATCHER; # used only during reload
2743		4117
2744	sub reload_perl() {	4118	sub reload_perl() {
2745	# doing reload synchronously and two reloads happen back-to-back,	4119	# doing reload synchronously and two reloads happen back-to-back,
2746	# coro crashes during coro_state_free->destroy here.	4120	# coro crashes during coro_state_free->destroy here.
2747		4121
2748	$RELOAD_WATCHER ||= Event->timer (	4122	$RELOAD_WATCHER ||= cf::async {
2749	reentrant => 0,	4123	Coro::AIO::aio_wait cache_extensions;
2750	after => 0,	4124
2751	data => WF_AUTOCANCEL,	4125	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2752	cb => sub {
2753	do_reload_perl;	4126	do_reload_perl;
2754	undef $RELOAD_WATCHER;	4127	undef $RELOAD_WATCHER;
2755	},	4128	};
2756	);	4129	};
2757	}	4130	}
2758		4131
2759	register_command "reload" => sub {	4132	register_command "reload" => sub {
2760	my ($who, $arg) = @_;	4133	my ($who, $arg) = @_;
2761		4134
2762	if ($who->flag (FLAG_WIZ)) {	4135	if ($who->flag (FLAG_WIZ)) {
2763	$who->message ("reloading server.");	4136	$who->message ("reloading server.");
		4137	async {
		4138	$Coro::current->{desc} = "perl_reload";
2764	async { reload_perl };	4139	reload_perl;
		4140	};
2765	}	4141	}
2766	};	4142	};
2767		4143
2768	unshift @INC, $LIBDIR;	4144	#############################################################################
2769		4145
2770	my $bug_warning = 0;	4146	my $bug_warning = 0;
2771		4147
2772	our @WAIT_FOR_TICK;
2773	our @WAIT_FOR_TICK_BEGIN;
2774
2775	sub wait_for_tick {	4148	sub wait_for_tick() {
2776	return unless $TICK_WATCHER->is_active;	4149	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2777	return if $Coro::current == $Coro::main;
2778		4150
2779	my $signal = new Coro::Signal;	4151	$WAIT_FOR_TICK->wait;
2780	push @WAIT_FOR_TICK, $signal;
2781	$signal->wait;
2782	}	4152	}
2783		4153
2784	sub wait_for_tick_begin {	4154	sub wait_for_tick_begin() {
2785	return unless $TICK_WATCHER->is_active;	4155	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2786	return if $Coro::current == $Coro::main;
2787		4156
2788	my $signal = new Coro::Signal;	4157	my $signal = new Coro::Signal;
2789	push @WAIT_FOR_TICK_BEGIN, $signal;	4158	push @WAIT_FOR_TICK_BEGIN, $signal;
2790	$signal->wait;	4159	$signal->wait;
2791	}	4160	}
2792		4161
2793	$TICK_WATCHER = Event->timer (	4162	sub tick {
2794	reentrant => 0,
2795	parked => 1,
2796	prio => 0,
2797	at => $NEXT_TICK || $TICK,
2798	data => WF_AUTOCANCEL,
2799	cb => sub {
2800	if ($Coro::current != $Coro::main) {	4163	if ($Coro::current != $Coro::main) {
2801	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4164	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2802	unless ++$bug_warning > 10;	4165	unless ++$bug_warning > 10;
2803	return;	4166	return;
2804	}	4167	}
2805		4168
2806	$NOW = Event::time;	4169	cf::one_tick; # one server iteration
2807		4170
2808	cf::server_tick; # one server iteration	4171	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2809		4172
2810	$RUNTIME += $TICK;
2811	$NEXT_TICK += $TICK;
2812
2813	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4173	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2814	$NEXT_RUNTIME_WRITE = $NOW + 10;	4174	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2815	Coro::async_pool {	4175	Coro::async_pool {
		4176	$Coro::current->{desc} = "runtime saver";
2816	write_runtime	4177	write_runtime_sync
2817	or warn "ERROR: unable to write runtime file: $!";	4178	or error "ERROR: unable to write runtime file: $!";
2818	};
2819	}	4179	};
		4180	}
2820		4181
2821	# my $AFTER = Event::time;
2822	# warn $AFTER - $NOW;#d#
2823
2824	# if we are delayed by four ticks or more, skip them all
2825	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2826
2827	$TICK_WATCHER->at ($NEXT_TICK);
2828	$TICK_WATCHER->start;
2829
2830	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4182	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2831	$sig->send;	4183	$sig->send;
2832	}
2833	while (my $sig = shift @WAIT_FOR_TICK) {
2834	$sig->send;
2835	}
2836
2837	_post_tick;
2838	},	4184	}
2839	);	4185	$WAIT_FOR_TICK->broadcast;
		4186
		4187	$LOAD = ($NOW - $TICK_START) / $TICK;
		4188	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4189
		4190	if (0) {
		4191	if ($NEXT_TICK) {
		4192	my $jitter = $TICK_START - $NEXT_TICK;
		4193	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4194	debug "jitter $JITTER\n";#d#
		4195	}
		4196	}
		4197	}
2840		4198
2841	{	4199	{
2842	BDB::max_poll_time $TICK * 0.1;	4200	# configure BDB
2843	$BDB_POLL_WATCHER = Event->io (	4201
2844	reentrant => 0,
2845	fd => BDB::poll_fileno,
2846	poll => 'r',
2847	prio => 0,
2848	data => WF_AUTOCANCEL,
2849	cb => \&BDB::poll_cb,
2850	);
2851	BDB::min_parallel 8;	4202	BDB::min_parallel 16;
2852		4203	BDB::max_poll_reqs $TICK * 0.1;
2853	BDB::set_sync_prepare {	4204	#$AnyEvent::BDB::WATCHER->priority (1);
2854	my $status;
2855	my $current = $Coro::current;
2856	(
2857	sub {
2858	$status = $!;
2859	$current->ready; undef $current;
2860	},
2861	sub {
2862	Coro::schedule while defined $current;
2863	$! = $status;
2864	},
2865	)
2866	};
2867		4205
2868	unless ($DB_ENV) {	4206	unless ($DB_ENV) {
2869	$DB_ENV = BDB::db_env_create;	4207	$DB_ENV = BDB::db_env_create;
		4208	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4209	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4210	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4211	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4212	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2870		4213
2871	cf::sync_job {	4214	cf::sync_job {
2872	eval {	4215	eval {
2873	BDB::db_env_open	4216	BDB::db_env_open
2874	$DB_ENV,	4217	$DB_ENV,
2875	$BDB_ENV_DIR,	4218	$BDBDIR,
2876	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4219	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2877	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4220	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2878	0666;	4221	0666;
2879		4222
2880	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	4223	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2881
2882	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2883	$DB_ENV->set_lk_detect;
2884	};	4224	};
2885		4225
2886	cf::cleanup "db_env_open(db): $@" if $@;	4226	cf::cleanup "db_env_open(db): $@" if $@;
2887	};	4227	};
2888	}	4228	}
		4229
		4230	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4231	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4232	};
		4233	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4234	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4235	};
		4236	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4237	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4238	};
2889	}	4239	}
2890		4240
2891	{	4241	{
		4242	# configure IO::AIO
		4243
2892	IO::AIO::min_parallel 8;	4244	IO::AIO::min_parallel 8;
2893
2894	undef $Coro::AIO::WATCHER;
2895	IO::AIO::max_poll_time $TICK * 0.1;	4245	IO::AIO::max_poll_time $TICK * 0.1;
2896	$AIO_POLL_WATCHER = Event->io (	4246	undef $AnyEvent::AIO::WATCHER;
2897	reentrant => 0,	4247	}
2898	data => WF_AUTOCANCEL,	4248
2899	fd => IO::AIO::poll_fileno,	4249	our $_log_backtrace;
2900	poll => 'r',	4250	our $_log_backtrace_last;
2901	prio => 6,	4251
2902	cb => \&IO::AIO::poll_cb,	4252	sub _log_backtrace {
2903	);	4253	my ($msg, @addr) = @_;
		4254
		4255	$msg =~ s/\n$//;
		4256
		4257	if ($_log_backtrace_last eq $msg) {
		4258	LOG llevInfo, "[ABT] $msg\n";
		4259	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4260	# limit the # of concurrent backtraces
		4261	} elsif ($_log_backtrace < 2) {
		4262	$_log_backtrace_last = $msg;
		4263	++$_log_backtrace;
		4264	my $perl_bt = Carp::longmess $msg;
		4265	async {
		4266	$Coro::current->{desc} = "abt $msg";
		4267
		4268	my @bt = fork_call {
		4269	@addr = map { sprintf "%x", $_ } @addr;
		4270	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4271	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4272	or die "addr2line: $!";
		4273
		4274	my @funcs;
		4275	my @res = <$fh>;
		4276	chomp for @res;
		4277	while (@res) {
		4278	my ($func, $line) = splice @res, 0, 2, ();
		4279	push @funcs, "[$func] $line";
		4280	}
		4281
		4282	@funcs
		4283	};
		4284
		4285	LOG llevInfo, "[ABT] $perl_bt\n";
		4286	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4287	LOG llevInfo, "[ABT] $_\n" for @bt;
		4288	--$_log_backtrace;
		4289	};
		4290	} else {
		4291	LOG llevInfo, "[ABT] $msg\n";
		4292	LOG llevInfo, "[ABT] [overload, suppressed]\n";
		4293	}
2904	}	4294	}
2905		4295
2906	# load additional modules	4296	# load additional modules
2907	use cf::pod;	4297	require "cf/$_.pm" for @EXTRA_MODULES;
		4298	cf::_connect_to_perl_2;
2908		4299
2909	END { cf::emergency_save }	4300	END { cf::emergency_save }
2910		4301
2911	1	4302	1
2912		4303

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