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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.266 by root, Fri May 18 01:01:02 2007 UTC vs.
Revision 1.588 by root, Thu Nov 1 13:02:52 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Socket;	29	use Socket;
9	use Storable;	30	use EV;
10	use Event;
11	use Opcode;	31	use Opcode;
12	use Safe;	32	use Safe;
13	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
14		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
15	use Coro 3.61 ();	41	use Coro ();
16	use Coro::State;	42	use Coro::State;
17	use Coro::Handle;	43	use Coro::Handle;
		44	use Coro::EV;
18	use Coro::Event;	45	use Coro::AnyEvent;
19	use Coro::Timer;	46	use Coro::Timer;
20	use Coro::Signal;	47	use Coro::Signal;
21	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
22	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
23	use Coro::Storable;	53	use Coro::Storable;
		54	use Coro::Util ();
24		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
25	use BDB ();	58	use BDB ();
26	use Data::Dumper;	59	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	60	use Fcntl;
29	use YAML::Syck ();	61	use YAML::XS ();
30	use IO::AIO 2.32 ();	62	use IO::AIO ();
31	use Time::HiRes;	63	use Time::HiRes;
32	use Compress::LZF;	64	use Compress::LZF;
		65	use Digest::MD5 ();
		66
		67	AnyEvent::detect;
33		68
34	# configure various modules to our taste	69	# configure various modules to our taste
35	#	70	#
36	$Storable::canonical = 1; # reduce rsync transfers	71	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		73
		74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		79
40	$Event::Eval = 1; # no idea why this is required, but it is	80	# strictly for debugging
41		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		82
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		84
		85	our @ORIG_INC;
48		86
49	our %COMMAND = ();	87	our %COMMAND = ();
50	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
51		89
52	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	93	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	94	our %EXT_MAP = (); # pluggable maps
56		95
57	our $RELOAD; # number of reloads so far	96	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	97	our @EVENT;
		98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
59		100
60	our $CONFDIR = confdir;	101	our $CONFDIR = confdir;
		102
61	our $DATADIR = datadir;	103	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	104	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	105	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	106	our $MAPDIR = "$DATADIR/" . mapdir;
		107
65	our $LOCALDIR = localdir;	108	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	109	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	110	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	111	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	112	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	113	our $BDBDIR = "$LOCALDIR/db";
		114	our $PIDFILE = "$LOCALDIR/pid";
		115	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		116
		117	#our %RESOURCE; # unused
		118
		119	our $OUTPUT_RATE_MIN = 3000;
		120	our $OUTPUT_RATE_MAX = 1000000;
		121
		122	our $MAX_LINKS = 32; # how many chained exits to follow
		123	our $VERBOSE_IO = 1;
71		124
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	125	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	127	our $NEXT_TICK;
		128	our $USE_FSYNC = 1; # use fsync to write maps - default on
		129
		130	our $BDB_DEADLOCK_WATCHER;
		131	our $BDB_CHECKPOINT_WATCHER;
		132	our $BDB_TRICKLE_WATCHER;
		133	our $DB_ENV;
		134
		135	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		136
		137	our %CFG;
		138	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		139
		140	our $UPTIME; $UPTIME ||= time;
		141	our $RUNTIME = 0;
		142	our $SERVER_TICK = 0;
77	our $NOW;	143	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		144
80	our $BDB_POLL_WATCHER;	145	our (%PLAYER, %PLAYER_LOADING); # all users
81	our $DB_ENV;	146	our (%MAP, %MAP_LOADING ); # all maps
82
83	our %CFG;
84
85	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;
87
88	our %PLAYER; # all users
89	our %MAP; # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	147	our $LINK_MAP; # the special {link} map, which is always available
91		148
92	# used to convert map paths into valid unix filenames by replacing / by ∕	149	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		151
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	153	our $LOADAVG; # same thing, but with alpha-smoothing
		154	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	155	our $TICK_START; # for load detecting purposes
		156
		157	our @POST_INIT;
		158
		159	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		160	our $REALLY_UNLOOP; # never set to true, please :)
		161
		162	our $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
98		164
99	binmode STDOUT;	165	binmode STDOUT;
100	binmode STDERR;	166	binmode STDERR;
101		167
102	# read virtual server time, if available	168	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	170	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
107	}	173	}
		174
		175	eval "sub TICK() { $TICK } 1" or die;
108		176
109	mkdir $_	177	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		179
112	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
113		181
114	sub cf::map::normalise;	182	sub cf::map::normalise;
115		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
116	#############################################################################	188	#############################################################################
117		189
		190	%REFLECT = ();
		191	for (@REFLECT) {
		192	my $reflect = JSON::XS::decode_json $_;
		193	$REFLECT{$reflect->{class}} = $reflect;
		194	}
		195
		196	# this is decidedly evil
		197	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		198
		199	#############################################################################
		200
118	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
119		202
120	=over 4	203	=over 4
121		204
122	=item $cf::UPTIME	205	=item $cf::UPTIME
123		206
124	The timestamp of the server start (so not actually an uptime).	207	The timestamp of the server start (so not actually an "uptime").
		208
		209	=item $cf::SERVER_TICK
		210
		211	An unsigned integer that starts at zero when the server is started and is
		212	incremented on every tick.
		213
		214	=item $cf::NOW
		215
		216	The (real) time of the last (current) server tick - updated before and
		217	after tick processing, so this is useful only as a rough "what time is it
		218	now" estimate.
		219
		220	=item $cf::TICK
		221
		222	The interval between each server tick, in seconds.
125		223
126	=item $cf::RUNTIME	224	=item $cf::RUNTIME
127		225
128	The time this server has run, starts at 0 and is increased by $cf::TICK on	226	The time this server has run, starts at 0 and is increased by $cf::TICK on
129	every server tick.	227	every server tick.
…		…
135	Various directories - "/etc", read-only install directory, perl-library	233	Various directories - "/etc", read-only install directory, perl-library
136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",	234	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
137	unique-items directory, player file directory, random maps directory and	235	unique-items directory, player file directory, random maps directory and
138	database environment.	236	database environment.
139		237
140	=item $cf::NOW
141
142	The time of the last (current) server tick.
143
144	=item $cf::TICK
145
146	The interval between server ticks, in seconds.
147
148	=item $cf::LOADAVG	238	=item $cf::LOADAVG
149		239
150	The current CPU load on the server (alpha-smoothed), as a value between 0	240	The current CPU load on the server (alpha-smoothed), as a value between 0
151	(none) and 1 (overloaded), indicating how much time is spent on processing	241	(none) and 1 (overloaded), indicating how much time is spent on processing
152	objects per tick. Healthy values are < 0.5.	242	objects per tick. Healthy values are < 0.5.
…		…
155		245
156	The raw value load value from the last tick.	246	The raw value load value from the last tick.
157		247
158	=item %cf::CFG	248	=item %cf::CFG
159		249
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	251	from wherever your confdir points to.
162		252
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	253	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		254
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	256	returns directly I<after> the tick processing (and consequently, can only wake one thread
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
		287
169	=back	288	=back
170		289
171	=cut	290	=cut
172		291
173	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
174	*CORE::GLOBAL::warn = sub {	293	sub warn (@) { LOG llevWarn , join "", @_ }
		294	sub info (@) { LOG llevInfo , join "", @_ }
		295	sub debug(@) { LOG llevDebug, join "", @_ }
		296	sub trace(@) { LOG llevTrace, join "", @_ }
		297
		298	$Coro::State::WARNHOOK = sub {
175	my $msg = join "", @_;	299	my $msg = join "", @_;
176		300
177	$msg .= "\n"	301	$msg .= "\n"
178	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
179		303
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		305
182	utf8::encode $msg;
183	LOG llevError, $msg;	306	LOG llevWarn, $msg;
184	};	307	};
185	}	308
		309	$Coro::State::DIEHOOK = sub {
		310	return unless $^S eq 0; # "eq", not "=="
		311
		312	error Carp::longmess $_[0];
		313
		314	if (in_main) {#d#
		315	error "DIEHOOK called in main context, Coro bug?\n";#d#
		316	return;#d#
		317	}#d#
		318
		319	# kill coroutine otherwise
		320	Coro::terminate
		321	};
186		322
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	327	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		328	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	329	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		330
194	# we bless all objects into (empty) derived classes to force a method lookup	331	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	332	# within the Safe compartment.
196	for my $pkg (qw(	333	for my $pkg (qw(
197	cf::global cf::attachable	334	cf::global cf::attachable
198	cf::object cf::object::player	335	cf::object cf::object::player
199	cf::client cf::player	336	cf::client cf::player
200	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
201	cf::map cf::party cf::region	339	cf::party cf::region
202	)) {	340	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	342	}
206		343
207	$Event::DIED = sub {	344	$EV::DIED = sub {
208	warn "error in event callback: @_";	345	warn "error in event callback: $@";
209	};	346	};
		347
		348	#############################################################################
		349
		350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
210		354
211	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
212		356
213	=over 4	357	=over 4
214		358
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	378	$d
235	} || "[unable to dump $_[0]: '$@']";	379	} || "[unable to dump $_[0]: '$@']";
236	}	380	}
237		381
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	382	=item $scalar = cf::load_file $path
239		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($path, $data, $sync) = @_;
		405
		406	my $lock = cf::lock_acquire ("replace_file:$path");
		407
		408	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		409	or return;
		410
		411	$data = $data->() if ref $data;
		412
		413	length $data == aio_write $fh, 0, (length $data), $data, 0
		414	or return;
		415
		416	!$sync
		417	or !aio_fsync $fh
		418	or return;
		419
		420	aio_close $fh
		421	and return;
		422
		423	aio_rename "$path~", $path
		424	and return;
		425
		426	if ($sync) {
		427	$path =~ s%/[^/]*$%%;
		428	aio_pathsync $path;
		429	}
		430
		431	1
		432	}
		433
240	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
241		435
242	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
243		437
244	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
245		439
246	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
247		441
		442	=cut
		443
		444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		445
		446	sub encode_json($) { $json_coder->encode ($_[0]) }
		447	sub decode_json($) { $json_coder->decode ($_[0]) }
		448
		449	=item $ref = cf::decode_storable $scalar
		450
		451	Same as Coro::Storable::thaw, so blocks.
		452
		453	=cut
		454
		455	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		456
		457	=item $ref = cf::decode_yaml $scalar
		458
		459	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		460
		461	=cut
		462
		463	sub decode_yaml($) {
		464	fork_call { YAML::XS::Load $_[0] } @_
		465	}
		466
		467	=item $scalar = cf::unlzf $scalar
		468
		469	Same as Compress::LZF::compress, but takes server ticks into account, so
		470	blocks.
		471
		472	=cut
		473
		474	sub unlzf($) {
		475	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		476	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		477	Compress::LZF::decompress $_[0]
		478	}
		479
		480	=item cf::post_init { BLOCK }
		481
		482	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		483	but I<before> the server starts ticking again.
		484
		485	The codeblock will have a single boolean argument to indicate whether this
		486	is a reload or not.
		487
		488	=cut
		489
		490	sub post_init(&) {
		491	push @POST_INIT, shift;
		492	}
		493
		494	sub _post_init {
		495	trace "running post_init jobs";
		496
		497	# run them in parallel...
		498
		499	my @join;
		500
		501	while () {
		502	push @join, map &Coro::async ($_, 0), @POST_INIT;
		503	@POST_INIT = ();
		504
		505	@join or last;
		506
		507	(pop @join)->join;
		508	}
		509	}
		510
248	=item cf::lock_wait $string	511	=item cf::lock_wait $string
249		512
250	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
251		514
252	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
253		516
254	Wait until the given lock is available and then acquires it and returns	517	Wait until the given lock is available and then acquires it and returns
255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	518	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
256	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
257	returned.	520	returned.
258		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
259	Lock names should begin with a unique identifier (for example, cf::map::find	525	Lock names should begin with a unique identifier (for example, cf::map::find
260	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
261		527
262	=item $locked = cf::lock_active $string	528	=item $locked = cf::lock_active $string
263		529
264	Return true if the lock is currently active, i.e. somebody has locked it.	530	Return true if the lock is currently active, i.e. somebody has locked it.
265		531
266	=cut	532	=cut
267		533
268	our %LOCK;	534	our $LOCKS = new Coro::SemaphoreSet;
269		535
270	sub lock_wait($) {	536	sub lock_wait($) {
271	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	538	}
279		539
280	sub lock_acquire($) {	540	sub lock_acquire($) {
281	my ($key) = @_;	541	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	542	}
293		543
294	sub lock_active($) {	544	sub lock_active($) {
295	my ($key) = @_;	545	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	546	}
299		547
300	sub freeze_mainloop {	548	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
302		550
303	my $guard = Coro::guard {	551	&Guard::guard (\&tick_inhibit_dec);
304	$TICK_WATCHER->start;	552	}
		553
		554	=item cf::periodic $interval, $cb
		555
		556	Like EV::periodic, but randomly selects a starting point so that the actions
		557	get spread over time.
		558
		559	=cut
		560
		561	sub periodic($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
305	};	621	}
306	$TICK_WATCHER->stop;	622	};
307	$guard	623
		624	sub get_slot($;$$) {
		625	return if tick_inhibit || $Coro::current == $Coro::main;
		626
		627	my ($time, $pri, $name) = @_;
		628
		629	$time = clamp $time, 0.01, $TICK * .6;
		630
		631	my $sig = new Coro::Signal;
		632
		633	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		634	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		635	$SLOT_QUEUE->ready;
		636	$sig->wait;
308	}	637	}
309		638
310	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
311		640
312	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		646
318	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
319		648
320	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
321		650
322	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
325		655
326	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
329	fast or be very important.	659	fast or be very important.
…		…
331	=cut	661	=cut
332		662
333	sub sync_job(&) {	663	sub sync_job(&) {
334	my ($job) = @_;	664	my ($job) = @_;
335		665
336	if ($Coro::current == $Coro::main) {	666	if (in_main) {
337	my $time = Event::time;	667	my $time = AE::time;
338		668
339	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
341		671
342	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	673
344	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
345		675
346	my $busy = 1;	676	my $busy = 1;
347	my @res;	677	my @res;
348		678
349	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	681	@res = eval { $job->() };
351	warn $@ if $@;	682	error $@ if $@;
352	undef $busy;	683	undef $busy;
353	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
354		685
355	while ($busy) {	686	while ($busy) {
356	Coro::cede or Event::one_event;	687	if (Coro::nready) {
		688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
357	}	691	}
		692	}
358		693
359	$time = Event::time - $time;	694	my $time = AE::time - $time;
360		695
361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364	$tick_start += $time; # do not account sync jobs to server load	696	$TICK_START += $time; # do not account sync jobs to server load
365		697
366	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
367	} else {	699	} else {
368	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
369		701
…		…
389	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
390		722
391	$coro	723	$coro
392	}	724	}
393		725
394	sub write_runtime {	726	=item fork_call { }, @args
395	my $runtime = "$LOCALDIR/runtime";
396		727
397	# first touch the runtime file to show we are still running:	728	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	729	process, returning the results. Everything must be serialisable with
		730	Coro::Storable. May, of course, block. Note that the executed sub may
		731	never block itself or use any form of event handling.
399		732
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	733	=cut
401	utime undef, undef, $fh;	734
		735	sub post_fork {
		736	reset_signals;
		737	}
		738
		739	sub fork_call(&@) {
		740	my ($cb, @args) = @_;
		741
		742	# we seemingly have to make a local copy of the whole thing,
		743	# otherwise perl prematurely frees the stuff :/
		744	# TODO: investigate and fix (likely this will be rather laborious)
		745
		746	my @res = Coro::Util::fork_eval {
		747	cf::post_fork;
		748	&$cb
		749	} @args;
		750
		751	wantarray ? @res : $res[-1]
		752	}
		753
		754	sub objinfo {
		755	(
		756	"counter value" => cf::object::object_count,
		757	"objects created" => cf::object::create_count,
		758	"objects destroyed" => cf::object::destroy_count,
		759	"freelist size" => cf::object::free_count,
		760	"allocated objects" => cf::object::objects_size,
		761	"active objects" => cf::object::actives_size,
		762	)
		763	}
		764
		765	=item $coin = coin_from_name $name
		766
		767	=cut
		768
		769	our %coin_alias = (
		770	"silver" => "silvercoin",
		771	"silvercoin" => "silvercoin",
		772	"silvercoins" => "silvercoin",
		773	"gold" => "goldcoin",
		774	"goldcoin" => "goldcoin",
		775	"goldcoins" => "goldcoin",
		776	"platinum" => "platinacoin",
		777	"platinumcoin" => "platinacoin",
		778	"platinumcoins" => "platinacoin",
		779	"platina" => "platinacoin",
		780	"platinacoin" => "platinacoin",
		781	"platinacoins" => "platinacoin",
		782	"royalty" => "royalty",
		783	"royalties" => "royalty",
		784	);
		785
		786	sub coin_from_name($) {
		787	$coin_alias{$_[0]}
		788	? cf::arch::find $coin_alias{$_[0]}
		789	: undef
		790	}
		791
		792	=item $value = cf::db_get $family => $key
		793
		794	Returns a single value from the environment database.
		795
		796	=item cf::db_put $family => $key => $value
		797
		798	Stores the given C<$value> in the family. It can currently store binary
		799	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		800
		801	=item $db = cf::db_table "name"
		802
		803	Create and/or open a new database table. The string must not be "db" and must be unique
		804	within each server.
		805
		806	=cut
		807
		808	sub db_table($) {
		809	cf::error "db_get called from main context"
		810	if $Coro::current == $Coro::main;
		811
		812	my ($name) = @_;
		813	my $db = BDB::db_create $DB_ENV;
		814
		815	eval {
		816	$db->set_flags (BDB::CHKSUM);
		817
		818	utf8::encode $name;
		819	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		820	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		821	cf::cleanup "db_open(db): $!" if $!;
402	}	822	};
		823	cf::cleanup "db_open(db): $@" if $@;
403		824
404	my $guard = cf::lock_acquire "write_runtime";	825	$db
		826	}
405		827
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	828	our $DB;
407	or return;
408		829
409	my $value = $cf::RUNTIME + 90 + 10;	830	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	831	$DB ||= db_table "db";
411	# 60 allows for the watchdog to kill the server.	832	}
412		833
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	834	sub db_get($$) {
414	and return;	835	my $key = "$_[0]/$_[1]";
415		836
416	# always fsync - this file is important	837	cf::error "db_get called from main context"
417	aio_fsync $fh	838	if $Coro::current == $Coro::main;
418	and return;
419		839
420	# touch it again to show we are up-to-date	840	BDB::db_get $DB, undef, $key, my $data;
421	utime undef, undef, $fh;
422		841
423	close $fh	842	$! ? ()
424	or return;	843	: $data
		844	}
425		845
426	aio_rename "$runtime~", $runtime	846	sub db_put($$$) {
427	and return;	847	BDB::dbreq_pri 4;
		848	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		849	}
428		850
429	warn "runtime file written.\n";#d#	851	=item cf::cache $id => [$paths...], $processversion => $process
430		852
		853	Generic caching function that returns the value of the resource $id,
		854	caching and regenerating as required.
		855
		856	This function can block.
		857
		858	=cut
		859
		860	sub cache {
		861	my ($id, $src, $processversion, $process) = @_;
		862
		863	my $meta =
		864	join "\x00",
		865	$processversion,
		866	map {
		867	aio_stat $_
		868	and Carp::croak "$_: $!";
		869
		870	($_, (stat _)[7,9])
		871	} @$src;
		872
		873	my $dbmeta = db_get cache => "$id/meta";
		874	if ($dbmeta ne $meta) {
		875	# changed, we may need to process
		876
		877	my @data;
		878	my $md5;
		879
		880	for (0 .. $#$src) {
		881	$data[$_] = load_file $src->[$_];
		882	}
		883
		884	# if processing is expensive, check
		885	# checksum first
		886	if (1) {
		887	$md5 =
		888	join "\x00",
		889	$processversion,
		890	map {
		891	cf::cede_to_tick;
		892	($src->[$_], Digest::MD5::md5_hex $data[$_])
		893	} 0.. $#$src;
		894
		895
		896	my $dbmd5 = db_get cache => "$id/md5";
		897	if ($dbmd5 eq $md5) {
		898	db_put cache => "$id/meta", $meta;
		899
		900	return db_get cache => "$id/data";
		901	}
		902	}
		903
		904	my $t1 = Time::HiRes::time;
		905	my $data = $process->(\@data);
		906	my $t2 = Time::HiRes::time;
		907
		908	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		909
		910	db_put cache => "$id/data", $data;
		911	db_put cache => "$id/md5" , $md5;
		912	db_put cache => "$id/meta", $meta;
		913
		914	return $data;
431	1	915	}
		916
		917	db_get cache => "$id/data"
432	}	918	}
433		919
434	=item cf::datalog type => key => value, ...	920	=item cf::datalog type => key => value, ...
435		921
436	Log a datalog packet of the given type with the given key-value pairs.	922	Log a datalog packet of the given type with the given key-value pairs.
437		923
438	=cut	924	=cut
439		925
440	sub datalog($@) {	926	sub datalog($@) {
441	my ($type, %kv) = @_;	927	my ($type, %kv) = @_;
442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
443	}	929	}
444		930
445	=back	931	=back
446		932
447	=cut	933	=cut
448		934
449	#############################################################################	935	#############################################################################
450		936
451	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
452		938
453	Many objects in crossfire are so-called attachable objects. That means you can	939	Many objects in deliantra are so-called attachable objects. That means you can
454	attach callbacks/event handlers (a collection of which is called an "attachment")	940	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
456		942
457	In the following description, CLASS can be any of C<global>, C<object>	943	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	944	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	945	Deliantra).
460		946
461	=over 4	947	=over 4
462		948
463	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
464		950
…		…
508	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
509		995
510	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
512		998
513	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
514	that are attached at load/instantiate time, thus the need for a name.	1000	that are attached at load/instantiate time, thus the need for a name.
515		1001
516	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
517		1003
518	=over 4	1004	=over 4
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	1113	$registry = $CB_TYPE[$object_type] ||= [];
628		1114
629	} elsif ($type eq "subtype") {	1115	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	1116	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	1117	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1118	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		1119
634	} elsif ($type eq "package") {	1120	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	1121	my $pkg = shift @arg;
636		1122
637	while (my ($name, $id) = each %cb_id) {	1123	while (my ($name, $id) = each %cb_id) {
…		…
642		1128
643	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
644	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
645		1131
646	} elsif (ref $type) {	1132	} elsif (ref $type) {
647	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
648		1134
649	} else {	1135	} else {
650	shift @arg;	1136	shift @arg;
651	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
652	}	1138	}
653	}	1139	}
654	}	1140	}
655		1141
656	sub _object_attach {	1142	sub _object_attach {
…		…
666	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
667	}	1153	}
668		1154
669	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
670	} else {	1156	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
672	}	1158	}
673		1159
674	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
675	}	1161	}
676		1162
…		…
678	if (ref $_[0]) {	1164	if (ref $_[0]) {
679	_object_attach @_;	1165	_object_attach @_;
680	} else {	1166	} else {
681	_attach shift->_attach_registry, @_;	1167	_attach shift->_attach_registry, @_;
682	}	1168	}
		1169	_recalc_want;
683	};	1170	};
684		1171
685	# all those should be optimised	1172	# all those should be optimised
686	sub cf::attachable::detach {	1173	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	1174	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	1177	delete $obj->{_attachment}{$name};
691	reattach ($obj);	1178	reattach ($obj);
692	} else {	1179	} else {
693	Carp::croak "cannot, currently, detach class attachments";	1180	Carp::croak "cannot, currently, detach class attachments";
694	}	1181	}
		1182	_recalc_want;
695	};	1183	};
696		1184
697	sub cf::attachable::attached {	1185	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	1186	my ($obj, $name) = @_;
699		1187
…		…
714	";	1202	";
715	die if $@;	1203	die if $@;
716	}	1204	}
717		1205
718	our $override;	1206	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1207	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		1208
721	sub override {	1209	sub override {
722	$override = 1;	1210	$override = 1;
723	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
724	}	1212	}
725		1213
726	sub do_invoke {	1214	sub do_invoke {
727	my $event = shift;	1215	my $event = shift;
728	my $callbacks = shift;	1216	my $callbacks = shift;
729		1217
730	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
731		1219
732	local $override;	1220	local $override;
733		1221
734	for (@$callbacks) {	1222	for (@$callbacks) {
735	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
736		1224
737	if ($@) {	1225	if ($@) {
738	warn "$@";
739	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
740	override;	1227	override;
741	}	1228	}
742		1229
743	return 1 if $override;	1230	return 1 if $override;
744	}	1231	}
745		1232
746	0	1233	0
747	}	1234	}
748		1235
749	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
750		1237
751	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
752		1239
753	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
754		1241
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1242	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	1243	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		1245
759	=back	1246	=back
760		1247
761	=cut	1248	=cut
762		1249
763	#############################################################################	1250	#############################################################################
764	# object support	1251	# object support
		1252
		1253	sub _object_equal($$);
		1254	sub _object_equal($$) {
		1255	my ($a, $b) = @_;
		1256
		1257	return 0 unless (ref $a) eq (ref $b);
		1258
		1259	if ("HASH" eq ref $a) {
		1260	my @ka = keys %$a;
		1261	my @kb = keys %$b;
		1262
		1263	return 0 if @ka != @kb;
		1264
		1265	for (0 .. $#ka) {
		1266	return 0 unless $ka[$_] eq $kb[$_];
		1267	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1268	}
		1269
		1270	} elsif ("ARRAY" eq ref $a) {
		1271
		1272	return 0 if @$a != @$b;
		1273
		1274	for (0 .. $#$a) {
		1275	return 0 unless _object_equal $a->[$_], $b->[$_];
		1276	}
		1277
		1278	} elsif ($a ne $b) {
		1279	return 0;
		1280	}
		1281
		1282	1
		1283	}
		1284
		1285	our $SLOW_MERGES;#d#
		1286	sub _can_merge {
		1287	my ($ob1, $ob2) = @_;
		1288
		1289	++$SLOW_MERGES;#d#
		1290
		1291	# we do the slow way here
		1292	return _object_equal $ob1, $ob2
		1293	}
765		1294
766	sub reattach {	1295	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	1297	my ($obj) = @_;
769		1298
		1299	# no longer needed after getting rid of delete_package?
770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1300	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
771		1301
772	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
773		1303
774	@$registry = ();	1304	@$registry = ();
775		1305
…		…
780	for (@$attach) {	1310	for (@$attach) {
781	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
782	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
783	}	1313	}
784	} else {	1314	} else {
785	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
786	}	1316	}
787	}	1317	}
788	}	1318	}
789		1319
790	cf::attachable->attach (	1320	cf::attachable->attach (
791	prio => -1000000,	1321	prio => -1000000,
792	on_instantiate => sub {	1322	on_instantiate => sub {
793	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
794		1324
795	$data = from_json $data;	1325	$data = decode_json $data;
796		1326
797	for (@$data) {	1327	for (@$data) {
798	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
799		1329
800	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
816	sub object_freezer_save {	1346	sub object_freezer_save {
817	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
818		1348
819	sync_job {	1349	sync_job {
820	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
821	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
822	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
823		1355
824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
825	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
827	aio_fsync $fh if $cf::USE_FSYNC;	1359	if ($cf::USE_FSYNC) {
		1360	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1361	aio_fsync $fh;
		1362	}
828	close $fh;	1363	aio_close $fh;
829		1364
830	if (@$objs) {	1365	if (@$objs) {
831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1366	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
832	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
833	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
834	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
835	aio_fsync $fh if $cf::USE_FSYNC;	1370	if ($cf::USE_FSYNC) {
		1371	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1372	aio_fsync $fh;
		1373	}
836	close $fh;	1374	aio_close $fh;
837	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
838	}	1376	}
839	} else {	1377	} else {
840	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
841	}	1379	}
842		1380
843	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
844	} else {	1385	} else {
845	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
846	}	1387	}
847	} else {	1388	} else {
848	aio_unlink $filename;	1389	aio_unlink $filename;
849	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
850	}	1391	}
851	}	1392	};
852	}	1393	}
853		1394
854	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
855	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
856		1397
…		…
868	or return;	1409	or return;
869		1410
870	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
871	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
872	or return;	1413	or return;
		1414
873	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
874	}	1417	}
875		1418
		1419	utf8::decode (my $decname = $filename);
876	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
877	$filename, length $data, scalar @{$av || []};#d#	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
878	return ($data, $av);	1424	($data, $av)
879	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
880		1432
881	#############################################################################	1433	#############################################################################
882	# command handling &c	1434	# command handling &c
883		1435
884	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
897	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
898	}	1450	}
899		1451
900	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
901		1453
902	Register a callbackf ro execution when the client sends an extcmd packet.	1454	Register a callback for execution when the client sends an (synchronous)
		1455	extcmd packet. Ext commands will be processed in the order they are
		1456	received by the server, like other user commands. The first argument is
		1457	the logged-in player. Ext commands can only be processed after a player
		1458	has logged in successfully.
903		1459
904	If the callback returns something, it is sent back as if reply was being	1460	If the callback returns something, it is sent back as if reply was being
905	called.	1461	called.
906		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
907	=cut	1474	=cut
908		1475
909	sub register_extcmd {	1476	sub register_extcmd {
910	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
911		1478
912	$EXTCMD{$name} = $cb;	1479	$EXTCMD{$name} = $cb;
913	}	1480	}
914		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
		1489
915	cf::player->attach (	1490	cf::player->attach (
916	on_command => sub {	1491	on_unknown_command => sub {
917	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
918		1493
919	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
920	or return;	1495	or return;
921		1496
…		…
926	cf::override;	1501	cf::override;
927	},	1502	},
928	on_extcmd => sub {	1503	on_extcmd => sub {
929	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
930		1505
931	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
932		1507
933	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
935	if (my %reply = $cb->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
936	$pl->ext_reply ($msg->{msgid}, %reply);
937	}
938	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
939	} else {	1520	} else {
940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
941	}	1522	}
942		1523
943	cf::override;	1524	cf::override;
944	},	1525	},
945	);	1526	);
946		1527
		1528	# "readahead" all extensions
947	sub load_extension {	1529	sub cache_extensions {
948	my ($path) = @_;	1530	my $grp = IO::AIO::aio_group;
949		1531
950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
951	my $base = $1;	1533	for (grep /\.ext$/, @{$_[0]}) {
952	my $pkg = $1;	1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
953	$pkg =~ s/[^[:word:]]/_/g;
954	$pkg = "ext::$pkg";
955
956	warn "... loading '$path' into '$pkg'\n";
957
958	open my $fh, "<:utf8", $path
959	or die "$path: $!";
960
961	my $source =
962	"package $pkg; use strict; use utf8;\n"
963	. "#line 1 \"$path\"\n{\n"
964	. (do { local $/; <$fh> })
965	. "\n};\n1";
966
967	unless (eval $source) {
968	my $msg = $@ ? "$path: $@\n"
969	: "extension disabled.\n";
970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
971	warn $@;
972	warn "mandatory extension failed to load, exiting.\n";
973	exit 1;
974	}	1535	}
975	die $@;
976	}	1536	};
977		1537
978	push @EXTS, $pkg;	1538	$grp
		1539	}
		1540
		1541	sub _ext_cfg_reg($$$$) {
		1542	my ($rvar, $varname, $cfgname, $default) = @_;
		1543
		1544	$cfgname = lc $varname
		1545	unless length $cfgname;
		1546
		1547	$EXT_CFG{$cfgname} = [$rvar, $default];
		1548
		1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
979	}	1550	}
980		1551
981	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
		1557	cf::sync_job {
		1558	my %todo;
		1559
982	for my $ext (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
983	next unless -r $ext;	1561	next unless -r $path;
984	eval {	1562
985	load_extension $ext;	1563	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1564	my $base = $1;
		1565	my $pkg = $1;
		1566	$pkg =~ s/[^[:word:]]/_/g;
		1567	$pkg = "ext::$pkg";
		1568
		1569	open my $fh, "<:utf8", $path
		1570	or die "$path: $!";
		1571
		1572	my $source = do { local $/; <$fh> };
		1573
		1574	my %ext = (
		1575	path => $path,
		1576	base => $base,
		1577	pkg => $pkg,
		1578	);
		1579
		1580	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1581	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1582
		1583	$ext{source} =
		1584	"package $pkg; use common::sense;\n"
		1585	. "#line 1 \"$path\"\n{\n"
		1586	. $source
		1587	. "\n};\n1";
		1588
		1589	$todo{$base} = \%ext;
		1590	}
		1591
		1592	my $pass = 0;
		1593	my %done;
		1594	while (%todo) {
		1595	my $progress;
		1596
		1597	++$pass;
		1598
		1599	ext:
		1600	while (my ($k, $v) = each %todo) {
		1601	for (split /,\s*/, $v->{meta}{depends}) {
		1602	next ext
		1603	unless exists $done{$_};
		1604	}
		1605
		1606	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1607
		1608	my $source = $v->{source};
		1609
		1610	# support "CONF varname :confname = default" pseudo-statements
		1611	$source =~ s{
		1612	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1613	}{
		1614	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1615	}gmxe;
		1616
		1617	my $active = eval $source;
		1618
		1619	if (length $@) {
		1620	error "$v->{path}: $@\n";
		1621
		1622	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1623	if exists $v->{meta}{mandatory};
		1624
		1625	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1626	delete $todo{$k};
		1627	} else {
		1628	$done{$k} = delete $todo{$k};
		1629	push @EXTS, $v->{pkg};
		1630	$progress = 1;
		1631
		1632	info "$v->{base}: extension inactive.\n"
		1633	unless $active;
		1634	}
986	1	1635	}
987	} or warn "$ext not loaded: $@";	1636
		1637	unless ($progress) {
		1638	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1639
		1640	while (my ($k, $v) = each %todo) {
		1641	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1642	if exists $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
		1647	}
988	}	1648	};
989	}	1649	}
990		1650
991	#############################################################################	1651	#############################################################################
992		1652
		1653	=back
		1654
993	=head2 CORE EXTENSIONS	1655	=head2 CORE EXTENSIONS
994		1656
995	Functions and methods that extend core crossfire objects.	1657	Functions and methods that extend core deliantra objects.
996		1658
997	=cut	1659	=cut
998		1660
999	package cf::player;	1661	package cf::player;
1000		1662
1001	use Coro::AIO;	1663	use Coro::AIO;
1002		1664
1003	=head3 cf::player	1665	=head3 cf::player
1004		1666
1005	=over 4	1667	=over 4
		1668
		1669	=item cf::player::num_playing
		1670
		1671	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1672
		1673	=cut
		1674
		1675	sub num_playing {
		1676	scalar grep
		1677	$_->ob->map
		1678	&& !$_->hidden
		1679	&& !$_->ob->flag (cf::FLAG_WIZ),
		1680	cf::player::list
		1681	}
1006		1682
1007	=item cf::player::find $login	1683	=item cf::player::find $login
1008		1684
1009	Returns the given player object, loading it if necessary (might block).	1685	Returns the given player object, loading it if necessary (might block).
1010		1686
…		…
1029		1705
1030	sub exists($) {	1706	sub exists($) {
1031	my ($login) = @_;	1707	my ($login) = @_;
1032		1708
1033	$cf::PLAYER{$login}	1709	$cf::PLAYER{$login}
1034	or cf::sync_job { !aio_stat path $login }	1710	or !aio_stat path $login
1035	}	1711	}
1036		1712
1037	sub find($) {	1713	sub find($) {
1038	return $cf::PLAYER{$_[0]} || do {	1714	return $cf::PLAYER{$_[0]} || do {
1039	my $login = $_[0];	1715	my $login = $_[0];
…		…
1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1049	aio_unlink +(playerdir $login) . "/$login.pl";	1725	aio_unlink +(playerdir $login) . "/$login.pl";
1050		1726
1051	my $pl = load_pl path $login	1727	my $f = new_from_file cf::object::thawer path $login
1052	or return;	1728	or return;
		1729
		1730	my $pl = cf::player::load_pl $f
		1731	or return;
		1732
		1733	local $cf::PLAYER_LOADING{$login} = $pl;
		1734	$f->resolve_delayed_derefs;
1053	$cf::PLAYER{$login} = $pl	1735	$cf::PLAYER{$login} = $pl
1054	}	1736	}
1055	}	1737	}
1056	}	1738	}
		1739
		1740	cf::player->attach (
		1741	on_load => sub {
		1742	my ($pl, $path) = @_;
		1743
		1744	# restore slots saved in save, below
		1745	my $slots = delete $pl->{_slots};
		1746
		1747	$pl->ob->current_weapon ($slots->[0]);
		1748	$pl->combat_ob ($slots->[1]);
		1749	$pl->ranged_ob ($slots->[2]);
		1750	},
		1751	);
1057		1752
1058	sub save($) {	1753	sub save($) {
1059	my ($pl) = @_;	1754	my ($pl) = @_;
1060		1755
1061	return if $pl->{deny_save};	1756	return if $pl->{deny_save};
…		…
1066	return if $pl->{deny_save};	1761	return if $pl->{deny_save};
1067		1762
1068	aio_mkdir playerdir $pl, 0770;	1763	aio_mkdir playerdir $pl, 0770;
1069	$pl->{last_save} = $cf::RUNTIME;	1764	$pl->{last_save} = $cf::RUNTIME;
1070		1765
		1766	cf::get_slot 0.01;
		1767
		1768	# save slots, to be restored later
		1769	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1770
1071	$pl->save_pl ($path);	1771	$pl->save_pl ($path);
1072	Coro::cede;	1772	cf::cede_to_tick;
1073	}	1773	}
1074		1774
1075	sub new($) {	1775	sub new($) {
1076	my ($login) = @_;	1776	my ($login) = @_;
1077		1777
…		…
1083	$cf::PLAYER{$login} = $self;	1783	$cf::PLAYER{$login} = $self;
1084		1784
1085	$self	1785	$self
1086	}	1786	}
1087		1787
		1788	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1789
		1790	=cut
		1791
		1792	sub send_msg {
		1793	my $ns = shift->ns
		1794	or return;
		1795	$ns->send_msg (@_);
		1796	}
		1797
1088	=item $pl->quit_character	1798	=item $pl->quit_character
1089		1799
1090	Nukes the player without looking back. If logged in, the connection will	1800	Nukes the player without looking back. If logged in, the connection will
1091	be destroyed. May block for a long time.	1801	be destroyed. May block for a long time.
1092		1802
…		…
1096	my ($pl) = @_;	1806	my ($pl) = @_;
1097		1807
1098	my $name = $pl->ob->name;	1808	my $name = $pl->ob->name;
1099		1809
1100	$pl->{deny_save} = 1;	1810	$pl->{deny_save} = 1;
1101	$pl->password ("*"); # this should lock out the player until we nuked the dir	1811	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1102		1812
1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1104	$pl->deactivate;	1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
1106	$pl->ns->destroy if $pl->ns;	1820	$pl->ns->destroy if $pl->ns;
1107		1821
1108	my $path = playerdir $pl;	1822	my $path = playerdir $pl;
1109	my $temp = "$path~$cf::RUNTIME~deleting~";	1823	my $temp = "$path~$cf::RUNTIME~deleting~";
1110	aio_rename $path, $temp;	1824	aio_rename $path, $temp;
…		…
1145	or return [];	1859	or return [];
1146		1860
1147	my @logins;	1861	my @logins;
1148		1862
1149	for my $login (@$dirs) {	1863	for my $login (@$dirs) {
		1864	my $path = path $login;
		1865
		1866	# a .pst is a dead give-away for a valid player
		1867	# if no pst file found, open and chekc for blocked users
		1868	if (aio_stat "$path.pst") {
1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1151	aio_read $fh, 0, 512, my $buf, 0 or next;	1870	aio_read $fh, 0, 512, my $buf, 0 or next;
1152	$buf !~ /^password -------------$/m or next; # official not-valid tag	1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
1153		1873
1154	utf8::decode $login;	1874	utf8::decode $login;
1155	push @logins, $login;	1875	push @logins, $login;
1156	}	1876	}
1157		1877
1158	\@logins	1878	\@logins
1159	}	1879	}
1160		1880
1161	=item $player->maps	1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
1162		1884
1163	Returns an arrayref of map paths that are private for this	1885	Returns an arrayref of map paths that are private for this
1164	player. May block.	1886	player. May block.
1165		1887
1166	=cut	1888	=cut
…		…
1184	}	1906	}
1185		1907
1186	\@paths	1908	\@paths
1187	}	1909	}
1188		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
1189	=item $player->ext_reply ($msgid, %msg)	1915	=item $player->ext_reply ($msgid, @msg)
1190		1916
1191	Sends an ext reply to the player.	1917	Sends an ext reply to the player.
1192		1918
1193	=cut	1919	=cut
1194		1920
1195	sub ext_reply($$%) {	1921	sub ext_reply($$@) {
1196	my ($self, $id, %msg) = @_;	1922	my ($self, $id, @msg) = @_;
1197		1923
1198	$msg{msgid} = $id;	1924	$self->ns->ext_reply ($id, @msg)
1199
1200	$self->send ("ext " . cf::to_json \%msg);
1201	}	1925	}
1202		1926
1203	=item $player->ext_event ($type, %msg)	1927	=item $player->ext_msg ($type, @msg)
1204		1928
1205	Sends an ext event to the client.	1929	Sends an ext event to the client.
1206		1930
1207	=cut	1931	=cut
1208		1932
1209	sub ext_event($$%) {	1933	sub ext_msg($$@) {
1210	my ($self, $type, %msg) = @_;	1934	my ($self, $type, @msg) = @_;
1211		1935
1212	$self->ns->ext_event ($type, %msg);	1936	$self->ns->ext_msg ($type, @msg);
1213	}	1937	}
1214		1938
1215	=head3 cf::region	1939	=head3 cf::region
1216		1940
1217	=over 4	1941	=over 4
…		…
1220		1944
1221	package cf::region;	1945	package cf::region;
1222		1946
1223	=item cf::region::find_by_path $path	1947	=item cf::region::find_by_path $path
1224		1948
1225	Tries to decuce the probable region for a map knowing only its path.	1949	Tries to decuce the likely region for a map knowing only its path.
1226		1950
1227	=cut	1951	=cut
1228		1952
1229	sub find_by_path($) {	1953	sub find_by_path($) {
1230	my ($path) = @_;	1954	my ($path) = @_;
1231		1955
		1956	$path =~ s/^~[^\/]*//; # skip ~login
		1957
1232	my ($match, $specificity);	1958	my ($match, $specificity);
1233		1959
1234	for my $region (list) {	1960	for my $region (list) {
1235	if ($region->match && $path =~ $region->match) {	1961	if ($region->{match} && $path =~ $region->{match}) {
1236	($match, $specificity) = ($region, $region->specificity)	1962	($match, $specificity) = ($region, $region->specificity)
1237	if $region->specificity > $specificity;	1963	if $region->specificity > $specificity;
1238	}	1964	}
1239	}	1965	}
1240		1966
…		…
1261	our $MAX_RESET = 3600;	1987	our $MAX_RESET = 3600;
1262	our $DEFAULT_RESET = 3000;	1988	our $DEFAULT_RESET = 3000;
1263		1989
1264	sub generate_random_map {	1990	sub generate_random_map {
1265	my ($self, $rmp) = @_;	1991	my ($self, $rmp) = @_;
1266	# mit "rum" bekleckern, nicht	1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
1267	$self->_create_random_map (	1995	$self->_create_random_map ($rmp);
1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1271	$rmp->{exit_on_final_map},
1272	$rmp->{xsize}, $rmp->{ysize},
1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1276	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1278	(cf::region::find $rmp->{region}), $rmp->{custom}
1279	)
1280	}	1996	}
1281		1997
1282	=item cf::map->register ($regex, $prio)	1998	=item cf::map->register ($regex, $prio)
1283		1999
1284	Register a handler for the map path matching the given regex at the	2000	Register a handler for the map path matching the given regex at the
…		…
1289		2005
1290	sub register {	2006	sub register {
1291	my (undef, $regex, $prio) = @_;	2007	my (undef, $regex, $prio) = @_;
1292	my $pkg = caller;	2008	my $pkg = caller;
1293		2009
1294	no strict;
1295	push @{"$pkg\::ISA"}, __PACKAGE__;	2010	push @{"$pkg\::ISA"}, __PACKAGE__;
1296		2011
1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1298	}	2013	}
1299		2014
1300	# also paths starting with '/'	2015	# also paths starting with '/'
1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1302		2017
1303	sub thawer_merge {	2018	sub thawer_merge {
1304	my ($self, $merge) = @_;	2019	my ($self, $merge) = @_;
1305		2020
1306	# we have to keep some variables in memory intact	2021	# we have to keep some variables in memory intact
1307	local $self->{path};	2022	local $self->{path};
1308	local $self->{load_path};	2023	local $self->{load_path};
1309	local $self->{deny_save};
1310	local $self->{deny_reset};
1311		2024
1312	$self->SUPER::thawer_merge ($merge);	2025	$self->SUPER::thawer_merge ($merge);
1313	}	2026	}
1314		2027
1315	sub normalise {	2028	sub normalise {
1316	my ($path, $base) = @_;	2029	my ($path, $base) = @_;
1317		2030
1318	$path = "$path"; # make sure its a string	2031	$path = "$path"; # make sure it's a string
1319		2032
1320	$path =~ s/\.map$//;	2033	$path =~ s/\.map$//;
1321		2034
1322	# map plan:	2035	# map plan:
1323	#	2036	#
…		…
1338	$base =~ s{[^/]+/?$}{};	2051	$base =~ s{[^/]+/?$}{};
1339	$path = "$base/$path";	2052	$path = "$base/$path";
1340	}	2053	}
1341		2054
1342	for ($path) {	2055	for ($path) {
1343	redo if s{//}{/};
1344	redo if s{/\.?/}{/};	2056	redo if s{/\.?/}{/};
1345	redo if s{/[^/]+/\.\./}{/};	2057	redo if s{/[^/]+/\.\./}{/};
1346	}	2058	}
1347		2059
1348	$path	2060	$path
…		…
1362	$self->init; # pass $1 etc.	2074	$self->init; # pass $1 etc.
1363	return $self;	2075	return $self;
1364	}	2076	}
1365	}	2077	}
1366		2078
1367	Carp::carp "unable to resolve path '$path' (base '$base').";	2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
1368	()	2080	()
1369	}	2081	}
1370		2082
		2083	# may re-bless or do other evil things
1371	sub init {	2084	sub init {
1372	my ($self) = @_;	2085	my ($self) = @_;
1373		2086
1374	$self	2087	$self
1375	}	2088	}
…		…
1394		2107
1395	# the temporary/swap location	2108	# the temporary/swap location
1396	sub save_path {	2109	sub save_path {
1397	my ($self) = @_;	2110	my ($self) = @_;
1398		2111
1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1400	"$TMPDIR/$path.map"	2113	"$TMPDIR/$path.map"
1401	}	2114	}
1402		2115
1403	# the unique path, undef == no special unique path	2116	# the unique path, undef == no special unique path
1404	sub uniq_path {	2117	sub uniq_path {
1405	my ($self) = @_;	2118	my ($self) = @_;
1406		2119
1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1408	"$UNIQUEDIR/$path"	2121	"$UNIQUEDIR/$path"
1409	}	2122	}
1410		2123
1411	# and all this just because we cannot iterate over	2124	sub decay_objects {
1412	# all maps in C++...
1413	sub change_all_map_light {
1414	my ($change) = @_;	2125	my ($self) = @_;
1415		2126
1416	$_->change_map_light ($change)	2127	return if $self->{deny_reset};
1417	for grep $_->outdoor, values %cf::MAP;	2128
		2129	$self->do_decay_objects;
1418	}	2130	}
1419		2131
1420	sub unlink_save {	2132	sub unlink_save {
1421	my ($self) = @_;	2133	my ($self) = @_;
1422		2134
…		…
1427		2139
1428	sub load_header_from($) {	2140	sub load_header_from($) {
1429	my ($self, $path) = @_;	2141	my ($self, $path) = @_;
1430		2142
1431	utf8::encode $path;	2143	utf8::encode $path;
1432	#aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1433	# or return;
1434
1435	$self->_load_header ($path)
1436	or return;	2145	or return;
1437		2146
		2147	$self->_load_header ($f)
		2148	or return;
		2149
		2150	local $MAP_LOADING{$self->{path}} = $self;
		2151	$f->resolve_delayed_derefs;
		2152
1438	$self->{load_path} = $path;	2153	$self->{load_path} = $path;
1439		2154
1440	1	2155	1
1441	}	2156	}
1442		2157
		2158	# used to laod the header of an original map
1443	sub load_header_orig {	2159	sub load_header_orig {
1444	my ($self) = @_;	2160	my ($self) = @_;
1445		2161
1446	$self->load_header_from ($self->load_path)	2162	$self->load_header_from ($self->load_path)
1447	}	2163	}
1448		2164
		2165	# used to laod the header of an instantiated map
1449	sub load_header_temp {	2166	sub load_header_temp {
1450	my ($self) = @_;	2167	my ($self) = @_;
1451		2168
1452	$self->load_header_from ($self->save_path)	2169	$self->load_header_from ($self->save_path)
1453	}	2170	}
1454		2171
		2172	# called after loading the header from an instantiated map
1455	sub prepare_temp {	2173	sub prepare_temp {
1456	my ($self) = @_;	2174	my ($self) = @_;
1457		2175
1458	$self->last_access ((delete $self->{last_access})	2176	$self->last_access ((delete $self->{last_access})
1459	|| $cf::RUNTIME); #d#	2177	|| $cf::RUNTIME); #d#
1460	# safety	2178	# safety
1461	$self->{instantiate_time} = $cf::RUNTIME	2179	$self->{instantiate_time} = $cf::RUNTIME
1462	if $self->{instantiate_time} > $cf::RUNTIME;	2180	if $self->{instantiate_time} > $cf::RUNTIME;
1463	}	2181	}
1464		2182
		2183	# called after loading the header from an original map
1465	sub prepare_orig {	2184	sub prepare_orig {
1466	my ($self) = @_;	2185	my ($self) = @_;
1467		2186
1468	$self->{load_original} = 1;	2187	$self->{load_original} = 1;
1469	$self->{instantiate_time} = $cf::RUNTIME;	2188	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1480	$self->load_header_orig	2199	$self->load_header_orig
1481	or return;	2200	or return;
1482	$self->prepare_orig;	2201	$self->prepare_orig;
1483	}	2202	}
1484		2203
		2204	$self->{deny_reset} = 1
		2205	if $self->no_reset;
		2206
1485	$self->default_region (cf::region::find_by_path $self->{path})	2207	$self->default_region (cf::region::find_by_path $self->{path})
1486	unless $self->default_region;	2208	unless $self->default_region;
1487		2209
1488	1	2210	1
1489	}	2211	}
1490		2212
1491	sub find;	2213	sub find;
1492	sub find {	2214	sub find {
1493	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1494		2216
		2217	cf::cede_to_tick;
		2218
1495	$path = normalise $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1496		2220
		2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1497	cf::lock_wait "map_find:$path";	2222	my $guard2 = cf::lock_acquire "map_find:$path";
1498		2223
1499	$cf::MAP{$path} || do {	2224	$cf::MAP{$path} || do {
1500	my $guard = cf::lock_acquire "map_find:$path";
1501	my $map = new_from_path cf::map $path	2225	my $map = new_from_path cf::map $path
1502	or return;	2226	or return;
1503		2227
1504	$map->{last_save} = $cf::RUNTIME;	2228	$map->{last_save} = $cf::RUNTIME;
1505		2229
1506	$map->load_header	2230	$map->load_header
1507	or return;	2231	or return;
1508		2232
1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1510	# doing this can freeze the server in a sync job, obviously	2234	# doing this can freeze the server in a sync job, obviously
1511	#$cf::WAIT_FOR_TICK->wait;	2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1512	$map->reset;	2238	$map->reset;
1513	undef $guard;
1514	return find $path;	2239	return find $path;
1515	}	2240	}
1516		2241
1517	$cf::MAP{$path} = $map	2242	$cf::MAP{$path} = $map
1518	}	2243	}
1519	}	2244	}
1520		2245
1521	sub pre_load { }	2246	sub pre_load { }
1522	sub post_load { }	2247	#sub post_load { } # XS
1523		2248
1524	sub load {	2249	sub load {
1525	my ($self) = @_;	2250	my ($self) = @_;
1526		2251
1527	local $self->{deny_reset} = 1; # loading can take a long time	2252	local $self->{deny_reset} = 1; # loading can take a long time
1528		2253
1529	my $path = $self->{path};	2254	my $path = $self->{path};
1530		2255
1531	{	2256	{
1532	my $guard = cf::lock_acquire "map_load:$path";	2257	my $guard = cf::lock_acquire "map_data:$path";
1533		2258
		2259	return unless $self->valid;
1534	return if $self->in_memory != cf::MAP_SWAPPED;	2260	return unless $self->state == cf::MAP_SWAPPED;
1535
1536	$self->in_memory (cf::MAP_LOADING);
1537		2261
1538	$self->alloc;	2262	$self->alloc;
1539		2263
1540	$self->pre_load;	2264	$self->pre_load;
1541	Coro::cede;	2265	cf::cede_to_tick;
1542		2266
1543	$self->_load_objects ($self->{load_path}, 1)	2267	if (exists $self->{load_path}) {
		2268	my $f = new_from_file cf::object::thawer $self->{load_path};
		2269	$f->skip_block;
		2270	$self->_load_objects ($f)
1544	or return;	2271	or return;
1545		2272
1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1547	if delete $self->{load_original};	2274	if delete $self->{load_original};
1548		2275
1549	if (my $uniq = $self->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1550	utf8::encode $uniq;	2277	utf8::encode $uniq;
1551	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1552	$self->clear_unique_items;	2280	$self->clear_unique_items;
1553	$self->_load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1554	}	2285	}
1555	}
1556		2286
1557	Coro::cede;	2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1558	# now do the right thing for maps	2296	# now do the right thing for maps
1559	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1560	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1561	unless $self->difficulty;	2299	unless $self->difficulty;
1562	Coro::cede;	2300	cf::cede_to_tick;
1563		2301
1564	unless ($self->{deny_activate}) {	2302	unless ($self->{deny_activate}) {
1565	$self->decay_objects;	2303	$self->decay_objects;
1566	$self->fix_auto_apply;	2304	$self->fix_auto_apply;
1567	$self->update_buttons;	2305	$self->update_buttons;
1568	Coro::cede;	2306	cf::cede_to_tick;
1569	$self->set_darkness_map;	2307	#$self->activate; # no longer activate maps automatically
1570	Coro::cede;
1571	$self->activate;
1572	}	2308	}
1573		2309
1574	$self->in_memory (cf::MAP_IN_MEMORY);	2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
1575	}	2312	}
1576		2313
1577	$self->post_load;	2314	$self->post_load;
1578	}
1579		2315
		2316	1
		2317	}
		2318
		2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
1580	sub customise_for {	2322	sub customise_for {
1581	my ($self, $ob) = @_;	2323	my ($self, $ob) = @_;
1582		2324
1583	return find "~" . $ob->name . "/" . $self->{path}	2325	return find "~" . $ob->name . "/" . $self->{path}
1584	if $self->per_player;	2326	if $self->per_player;
1585		2327
		2328	# return find "?party/" . $ob->name . "/" . $self->{path}
		2329	# if $self->per_party;
		2330
1586	$self	2331	$self
1587	}
1588
1589	# find and load all maps in the 3x3 area around a map
1590	sub load_diag {
1591	my ($map) = @_;
1592
1593	my @diag; # diagonal neighbours
1594
1595	for (0 .. 3) {
1596	my $neigh = $map->tile_path ($_)
1597	or next;
1598	$neigh = find $neigh, $map
1599	or next;
1600	$neigh->load;
1601
1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1604	}
1605
1606	for (@diag) {
1607	my $neigh = find @$_
1608	or next;
1609	$neigh->load;
1610	}
1611	}	2332	}
1612		2333
1613	sub find_sync {	2334	sub find_sync {
1614	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1615		2336
1616	cf::sync_job { find $path, $origin }	2337	# it's a bug to call this from the main context
		2338	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2339	if $Coro::current == $Coro::main;
		2340
		2341	find $path, $origin
1617	}	2342	}
1618		2343
1619	sub do_load_sync {	2344	sub do_load_sync {
1620	my ($map) = @_;	2345	my ($map) = @_;
1621		2346
1622	cf::sync_job { $map->load };	2347	# it's a bug to call this from the main context
		2348	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2349	if $Coro::current == $Coro::main;
		2350
		2351	$map->load;
1623	}	2352	}
1624		2353
1625	our %MAP_PREFETCH;	2354	our %MAP_PREFETCH;
1626	our $MAP_PREFETCHER = undef;	2355	our $MAP_PREFETCHER = undef;
1627		2356
1628	sub find_async {	2357	sub find_async {
1629	my ($path, $origin) = @_;	2358	my ($path, $origin, $load) = @_;
1630		2359
1631	$path = normalise $path, $origin && $origin->{path};	2360	$path = normalise $path, $origin;
1632		2361
1633	if (my $map = $cf::MAP{$path}) {	2362	if (my $map = $cf::MAP{$path}) {
1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2363	return $map if !$load || $map->linkable;
1635	}	2364	}
1636		2365
1637	undef $MAP_PREFETCH{$path};	2366	$MAP_PREFETCH{$path} |= $load;
		2367
1638	$MAP_PREFETCHER ||= cf::async {	2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
1639	while (%MAP_PREFETCH) {	2371	while (%MAP_PREFETCH) {
1640	for my $path (keys %MAP_PREFETCH) {	2372	while (my ($k, $v) = each %MAP_PREFETCH) {
1641	my $map = find $path	2373	if (my $map = find $k) {
1642	or next;
1643	$map->load;	2374	$map->load if $v;
		2375	}
1644		2376
1645	delete $MAP_PREFETCH{$path};	2377	delete $MAP_PREFETCH{$k};
1646	}	2378	}
1647	}	2379	}
1648	undef $MAP_PREFETCHER;	2380	undef $MAP_PREFETCHER;
1649	};	2381	};
1650	$MAP_PREFETCHER->prio (6);	2382	$MAP_PREFETCHER->prio (6);
1651		2383
1652	()	2384	()
1653	}	2385	}
1654		2386
		2387	# common code, used by both ->save and ->swapout
1655	sub save {	2388	sub _save {
1656	my ($self) = @_;	2389	my ($self) = @_;
1657
1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1659		2390
1660	$self->{last_save} = $cf::RUNTIME;	2391	$self->{last_save} = $cf::RUNTIME;
1661		2392
1662	return unless $self->dirty;	2393	return unless $self->dirty;
1663		2394
…		…
1669	return if $self->{deny_save};	2400	return if $self->{deny_save};
1670		2401
1671	local $self->{last_access} = $self->last_access;#d#	2402	local $self->{last_access} = $self->last_access;#d#
1672		2403
1673	cf::async {	2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
1674	$_->contr->save for $self->players;	2406	$_->contr->save for $self->players;
1675	};	2407	};
		2408
		2409	cf::get_slot 0.02;
1676		2410
1677	if ($uniq) {	2411	if ($uniq) {
1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1680	} else {	2414	} else {
1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1682	}	2416	}
1683	}	2417	}
1684		2418
		2419	sub save {
		2420	my ($self) = @_;
		2421
		2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2423
		2424	$self->_save;
		2425	}
		2426
1685	sub swap_out {	2427	sub swap_out {
1686	my ($self) = @_;	2428	my ($self) = @_;
1687		2429
1688	# save first because save cedes
1689	$self->save;
1690
1691	my $lock = cf::lock_acquire "map_data:" . $self->path;	2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
1692		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1693	return if $self->players;	2434	return if $self->players;
1694	return if $self->in_memory != cf::MAP_IN_MEMORY;
1695	return if $self->{deny_save};
1696		2435
		2436	# first deactivate the map and "unlink" it from the core
		2437	$self->deactivate;
		2438	$_->clear_links_to ($self) for values %cf::MAP;
		2439	$self->state (cf::MAP_SWAPPED);
		2440
		2441	# then atomically save
		2442	$self->_save;
		2443
		2444	# then free the map
1697	$self->clear;	2445	$self->clear;
1698	$self->in_memory (cf::MAP_SWAPPED);
1699	}	2446	}
1700		2447
1701	sub reset_at {	2448	sub reset_at {
1702	my ($self) = @_;	2449	my ($self) = @_;
1703		2450
1704	# TODO: safety, remove and allow resettable per-player maps	2451	# TODO: safety, remove and allow resettable per-player maps
1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1706	return 1e99 if $self->{deny_reset};	2452	return 1e99 if $self->{deny_reset};
1707		2453
1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2454	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2455	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1710		2456
…		…
1721	my ($self) = @_;	2467	my ($self) = @_;
1722		2468
1723	my $lock = cf::lock_acquire "map_data:$self->{path}";	2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
1724		2470
1725	return if $self->players;	2471	return if $self->players;
1726	return if $self->isa ("ext::map_per_player");#d#
1727		2472
1728	warn "resetting map ", $self->path;#d#	2473	cf::trace "resetting map ", $self->path, "\n";
1729		2474
1730	$self->in_memory (cf::MAP_SWAPPED);	2475	$self->state (cf::MAP_SWAPPED);
1731		2476
1732	# need to save uniques path	2477	# need to save uniques path
1733	unless ($self->{deny_save}) {	2478	unless ($self->{deny_save}) {
1734	my $uniq = $self->uniq_path; utf8::encode $uniq;	2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
1735		2480
…		…
1737	if $uniq;	2482	if $uniq;
1738	}	2483	}
1739		2484
1740	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1741		2486
		2487	$self->deactivate;
		2488	$_->clear_links_to ($self) for values %cf::MAP;
1742	$self->clear;	2489	$self->clear;
1743
1744	$_->clear_links_to ($self) for values %cf::MAP;
1745		2490
1746	$self->unlink_save;	2491	$self->unlink_save;
1747	$self->destroy;	2492	$self->destroy;
1748	}	2493	}
1749		2494
1750	my $nuke_counter = "aaaa";	2495	my $nuke_counter = "aaaa";
1751		2496
1752	sub nuke {	2497	sub nuke {
1753	my ($self) = @_;	2498	my ($self) = @_;
1754		2499
		2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2502
1755	delete $cf::MAP{$self->path};	2503	delete $cf::MAP{$self->path};
1756		2504
1757	$self->unlink_save;	2505	$self->unlink_save;
1758		2506
1759	bless $self, "cf::map";	2507	bless $self, "cf::map::wrap";
1760	delete $self->{deny_reset};	2508	delete $self->{deny_reset};
1761	$self->{deny_save} = 1;	2509	$self->{deny_save} = 1;
1762	$self->reset_timeout (1);	2510	$self->reset_timeout (1);
1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1764		2512
1765	$cf::MAP{$self->path} = $self;	2513	$cf::MAP{$self->path} = $self;
		2514	}
1766		2515
1767	$self->reset; # polite request, might not happen	2516	$self->reset; # polite request, might not happen
		2517	}
		2518
		2519	=item $maps = cf::map::tmp_maps
		2520
		2521	Returns an arrayref with all map paths of currently instantiated and saved
		2522	maps. May block.
		2523
		2524	=cut
		2525
		2526	sub tmp_maps() {
		2527	[
		2528	map {
		2529	utf8::decode $_;
		2530	/\.map$/
		2531	? normalise $_
		2532	: ()
		2533	} @{ aio_readdir $TMPDIR or [] }
		2534	]
		2535	}
		2536
		2537	=item $maps = cf::map::random_maps
		2538
		2539	Returns an arrayref with all map paths of currently instantiated and saved
		2540	random maps. May block.
		2541
		2542	=cut
		2543
		2544	sub random_maps() {
		2545	[
		2546	map {
		2547	utf8::decode $_;
		2548	/\.map$/
		2549	? normalise "?random/$_"
		2550	: ()
		2551	} @{ aio_readdir $RANDOMDIR or [] }
		2552	]
1768	}	2553	}
1769		2554
1770	=item cf::map::unique_maps	2555	=item cf::map::unique_maps
1771		2556
1772	Returns an arrayref of paths of all shared maps that have	2557	Returns an arrayref of paths of all shared maps that have
1773	instantiated unique items. May block.	2558	instantiated unique items. May block.
1774		2559
1775	=cut	2560	=cut
1776		2561
1777	sub unique_maps() {	2562	sub unique_maps() {
1778	my $files = aio_readdir $UNIQUEDIR	2563	[
1779	or return;	2564	map {
1780
1781	my @paths;
1782
1783	for (@$files) {
1784	utf8::decode $_;	2565	utf8::decode $_;
1785	next if /\.pst$/;	2566	s/\.map$//; # TODO future compatibility hack
1786	next unless /^$PATH_SEP/o;	2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1787		2568	? ()
1788	push @paths, cf::map::normalise $_;	2569	: normalise $_
		2570	} @{ aio_readdir $UNIQUEDIR or [] }
1789	}	2571	]
1790
1791	\@paths
1792	}	2572	}
1793		2573
1794	package cf;	2574	=item cf::map::static_maps
		2575
		2576	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2577	file in the shared directory excluding F</styles> and F</editor>). May
		2578	block.
		2579
		2580	=cut
		2581
		2582	sub static_maps() {
		2583	my @dirs = "";
		2584	my @maps;
		2585
		2586	while (@dirs) {
		2587	my $dir = shift @dirs;
		2588
		2589	next if $dir eq "/styles" || $dir eq "/editor";
		2590
		2591	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2592	or return;
		2593
		2594	for (@$files) {
		2595	s/\.map$// or next;
		2596	utf8::decode $_;
		2597	push @maps, "$dir/$_";
		2598	}
		2599
		2600	push @dirs, map "$dir/$_", @$dirs;
		2601	}
		2602
		2603	\@maps
		2604	}
1795		2605
1796	=back	2606	=back
1797		2607
1798	=head3 cf::object	2608	=head3 cf::object
1799		2609
…		…
1803		2613
1804	=over 4	2614	=over 4
1805		2615
1806	=item $ob->inv_recursive	2616	=item $ob->inv_recursive
1807		2617
1808	Returns the inventory of the object _and_ their inventories, recursively.	2618	Returns the inventory of the object I<and> their inventories, recursively,
		2619	but I<not> the object itself.
1809		2620
1810	=cut	2621	=cut
1811		2622
1812	sub inv_recursive_;	2623	sub inv_recursive_;
1813	sub inv_recursive_ {	2624	sub inv_recursive_ {
…		…
1816		2627
1817	sub inv_recursive {	2628	sub inv_recursive {
1818	inv_recursive_ inv $_[0]	2629	inv_recursive_ inv $_[0]
1819	}	2630	}
1820		2631
		2632	=item $ref = $ob->ref
		2633
		2634	Creates and returns a persistent reference to an object that can be stored as a string.
		2635
		2636	=item $ob = cf::object::deref ($refstring)
		2637
		2638	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2639	even if the object actually exists. May block.
		2640
		2641	=cut
		2642
		2643	sub deref {
		2644	my ($ref) = @_;
		2645
		2646	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2647	my ($uuid, $name) = ($1, $2);
		2648	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2649	or return;
		2650	$pl->ob->uuid eq $uuid
		2651	or return;
		2652
		2653	$pl->ob
		2654	} else {
		2655	warn "$ref: cannot resolve object reference\n";
		2656	undef
		2657	}
		2658	}
		2659
1821	package cf;	2660	package cf;
1822		2661
1823	=back	2662	=back
1824		2663
1825	=head3 cf::object::player	2664	=head3 cf::object::player
…		…
1831	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2670	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1832	can be C<undef>. Does the right thing when the player is currently in a	2671	can be C<undef>. Does the right thing when the player is currently in a
1833	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1834		2673
1835	=cut	2674	=cut
		2675
		2676	our $SAY_CHANNEL = {
		2677	id => "say",
		2678	title => "Map",
		2679	reply => "say ",
		2680	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2681	};
		2682
		2683	our $CHAT_CHANNEL = {
		2684	id => "chat",
		2685	title => "Chat",
		2686	reply => "chat ",
		2687	tooltip => "Player chat and shouts, global to the server.",
		2688	};
1836		2689
1837	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1838	# with dialog boxes.	2691	# with dialog boxes.
1839	#TODO: the first argument must go, split into a $npc->reply_to ( method	2692	#TODO: the first argument must go, split into a $npc->reply_to ( method
1840	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1842		2695
1843	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1844		2697
1845	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1846	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1847	} else {	2701	} else {
		2702	my $pl = $self->contr;
		2703
		2704	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2705	my $dialog = $pl->{npc_dialog};
		2706	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2707
		2708	} else {
1848	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1849	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1850	}	2712	}
		2713	}
		2714
		2715	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2716
		2717	=cut
		2718
		2719	sub cf::object::send_msg {
		2720	my $pl = shift->contr
		2721	or return;
		2722	$pl->send_msg (@_);
1851	}	2723	}
1852		2724
1853	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1854		2726
1855	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1868		2740
1869	=item $player_object->enter_link	2741	=item $player_object->enter_link
1870		2742
1871	Freezes the player and moves him/her to a special map (C<{link}>).	2743	Freezes the player and moves him/her to a special map (C<{link}>).
1872		2744
1873	The player should be reasonably safe there for short amounts of time. You	2745	The player should be reasonably safe there for short amounts of time (e.g.
1874	I<MUST> call C<leave_link> as soon as possible, though.	2746	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2747	though, as the player cannot control the character while it is on the link
		2748	map.
1875		2749
1876	Will never block.	2750	Will never block.
1877		2751
1878	=item $player_object->leave_link ($map, $x, $y)	2752	=item $player_object->leave_link ($map, $x, $y)
1879		2753
…		…
1899	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1900	my ($self) = @_;	2774	my ($self) = @_;
1901		2775
1902	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
1903		2777
		2778	++$self->{_link_recursion};
		2779
1904	return if UNIVERSAL::isa $self->map, "ext::map_link";	2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
1905		2781
1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1907	if $self->map;	2783	if $self->map && $self->map->{path} ne "{link}";
1908		2784
1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1910	}	2786	}
1911		2787
1912	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1913	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
		2790
		2791	return unless $self->contr->active;
1914		2792
1915	my $link_pos = delete $self->{_link_pos};	2793	my $link_pos = delete $self->{_link_pos};
1916		2794
1917	unless ($map) {	2795	unless ($map) {
1918	# restore original map position	2796	# restore original map position
…		…
1929	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
1930	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
1931		2809
1932	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
1933	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
1934	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
1935		2813
1936	$map->load;	2814	$map->load;
1937	$map->load_diag;
1938		2815
1939	return unless $self->contr->active;	2816	return unless $self->contr->active;
1940	$self->activate_recursive;
1941		2817
1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1943	$self->enter_map ($map, $x, $y);	2819	if ($self->enter_map ($map, $x, $y)) {
1944	}	2820	# entering was successful
1945		2821	delete $self->{_link_recursion};
1946	cf::player->attach (	2822	# only activate afterwards, to support waiting in hooks
1947	on_logout => sub {	2823	$self->activate_recursive;
1948	my ($pl) = @_;
1949
1950	# abort map switching before logout
1951	if ($pl->ob->{_link_pos}) {
1952	cf::sync_job {
1953	$pl->ob->leave_link
1954	};
1955	}
1956	},	2824	}
1957	on_login => sub {
1958	my ($pl) = @_;
1959		2825
1960	# try to abort aborted map switching on player login :)	2826	}
1961	# should happen only on crashes
1962	if ($pl->ob->{_link_pos}) {
1963	$pl->ob->enter_link;
1964	(async {
1965	$pl->ob->reply (undef,
1966	"There was an internal problem at your last logout, "
1967	. "the server will try to bring you to your intended destination in a second.",
1968	cf::NDI_RED);
1969	# we need this sleep as the login has a concurrent enter_exit running
1970	# and this sleep increases chances of the player not ending up in scorn
1971	Coro::Timer::sleep 1;
1972	$pl->ob->leave_link;
1973	})->prio (2);
1974	}
1975	},
1976	);
1977		2827
1978	=item $player_object->goto ($path, $x, $y)	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1979		2829
		2830	Moves the player to the given map-path and coordinates by first freezing
		2831	her, loading and preparing them map, calling the provided $check callback
		2832	that has to return the map if sucecssful, and then unfreezes the player on
		2833	the new (success) or old (failed) map position. In either case, $done will
		2834	be called at the end of this process.
		2835
		2836	Note that $check will be called with a potentially non-loaded map, so if
		2837	it needs a loaded map it has to call C<< ->load >>.
		2838
1980	=cut	2839	=cut
		2840
		2841	our $GOTOGEN;
1981		2842
1982	sub cf::object::player::goto {	2843	sub cf::object::player::goto {
1983	my ($self, $path, $x, $y) = @_;	2844	my ($self, $path, $x, $y, $check, $done) = @_;
		2845
		2846	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2847	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2848	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2849	($path, $x, $y) = @$EMERGENCY_POSITION;
		2850	}
		2851
		2852	# do generation counting so two concurrent goto's will be executed in-order
		2853	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1984		2854
1985	$self->enter_link;	2855	$self->enter_link;
1986		2856
1987	(async {	2857	(async {
		2858	$Coro::current->{desc} = "player::goto $path $x $y";
		2859
		2860	# *tag paths override both path and x|y
		2861	if ($path =~ /^\*(.*)$/) {
		2862	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2863	my $ob = $obs[rand @obs];
		2864
		2865	# see if we actually can go there
		2866	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2867	$ob = $obs[rand @obs];
		2868	} else {
		2869	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2870	}
		2871	# else put us there anyways for now #d#
		2872
		2873	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2874	} else {
		2875	($path, $x, $y) = (undef, undef, undef);
		2876	}
		2877	}
		2878
1988	my $map = eval {	2879	my $map = eval {
1989	my $map = cf::map::find $path;	2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2881
		2882	if ($map) {
1990	$map = $map->customise_for ($self) if $map;	2883	$map = $map->customise_for ($self);
		2884	$map = $check->($map, $x, $y, $self) if $check && $map;
		2885	} else {
		2886	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2887	}
		2888
1991	$map	2889	$map
		2890	};
		2891
		2892	if ($@) {
		2893	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2894	LOG llevError | logBacktrace, Carp::longmess $@;
1992	} or	2895	}
1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1994		2896
		2897	if ($gen == $self->{_goto_generation}) {
		2898	delete $self->{_goto_generation};
1995	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
		2900	}
		2901
		2902	$done->($self) if $done;
1996	})->prio (1);	2903	})->prio (1);
1997	}	2904	}
1998		2905
1999	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
2000		2907
…		…
2020	}	2927	}
2021		2928
2022	sub prepare_random_map {	2929	sub prepare_random_map {
2023	my ($exit) = @_;	2930	my ($exit) = @_;
2024		2931
2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
2026
2027	# all this does is basically replace the /! path by	2932	# all this does is basically replace the /! path by
2028	# a new random map path (?random/...) with a seed	2933	# a new random map path (?random/...) with a seed
2029	# that depends on the exit object	2934	# that depends on the exit object
2030		2935
2031	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
…		…
2033	if ($exit->map) {	2938	if ($exit->map) {
2034	$rmp->{region} = $exit->region->name;	2939	$rmp->{region} = $exit->region->name;
2035	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
2036	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
2037	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
2038	}	2945	}
2039		2946
2040	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
2041		2948
2042	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2043	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
2044	my $meta = "$RANDOMDIR/$md5.meta";	2951	my $meta = "$RANDOMDIR/$md5.meta";
2045		2952
2046	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2047	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
2048	undef $fh;	2955	undef $fh;
2049	aio_rename "$meta~", $meta;	2956	aio_rename "$meta~", $meta;
2050		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
2051	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
2052	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
2053	}	2964	}
2054	}	2965	}
2055		2966
2056	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
2057	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
2058		2969
2059	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
2060		2971
2061	if ($exit->slaying eq "/!") {
2062	#TODO: this should de-fi-ni-te-ly not be a sync-job
2063	# the problem is that $exit might not survive long enough
2064	# so it needs to be done right now, right here
2065	cf::sync_job { prepare_random_map $exit };
2066	}
2067
2068	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2069	my $hp = $exit->stats->hp;
2070	my $sp = $exit->stats->sp;
2071
2072	$self->enter_link;	2972	$self->enter_link;
2073		2973
2074	(async {	2974	(async {
2075	$self->deactivate_recursive; # just to be sure	2975	$Coro::current->{desc} = "enter_exit";
		2976
2076	unless (eval {	2977	unless (eval {
		2978	$self->deactivate_recursive; # just to be sure
		2979
		2980	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2981	my $x = $exit->stats->hp;
		2982	my $y = $exit->stats->sp;
		2983
		2984	# special map handling
		2985	my $slaying = $exit->slaying;
		2986
		2987	# special map handling
		2988	if ($slaying eq "/!") {
		2989	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2990
		2991	prepare_random_map $exit
		2992	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2993
		2994	$map = $exit->slaying;
		2995
		2996	} elsif ($slaying eq '!up') {
		2997	$map = $exit->map->tile_path (cf::TILE_UP);
		2998	$x = $exit->x;
		2999	$y = $exit->y;
		3000
		3001	} elsif ($slaying eq '!down') {
		3002	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3003	$x = $exit->x;
		3004	$y = $exit->y;
		3005	}
		3006
2077	$self->goto ($slaying, $hp, $sp);	3007	$self->goto ($map, $x, $y);
2078		3008
		3009	# if exit is damned, update players death & WoR home-position
		3010	$self->contr->savebed ($map, $x, $y)
		3011	if $exit->flag (cf::FLAG_DAMNED);
		3012
2079	1;	3013	1
2080	}) {	3014	}) {
2081	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
2082	. "I'll try to bring you back to the map you were before. "	3016	. "I'll try to bring you back to the map you were before. "
2083	. "Please report this to the dungeon master!",	3017	. "Please report this to the dungeon master!",
2084	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
2085		3019
2086	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
2087	$self->leave_link;	3021	$self->leave_link;
2088	}	3022	}
2089	})->prio (1);	3023	})->prio (1);
2090	}	3024	}
2091		3025
…		…
2105		3039
2106	utf8::encode $text;	3040	utf8::encode $text;
2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2108	}	3042	}
2109		3043
		3044	=item $client->send_big_packet ($pkt)
		3045
		3046	Like C<send_packet>, but tries to compress large packets, and fragments
		3047	them as required.
		3048
		3049	=cut
		3050
		3051	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3052
		3053	sub cf::client::send_big_packet {
		3054	my ($self, $pkt) = @_;
		3055
		3056	# try lzf for large packets
		3057	$pkt = "lzf " . Compress::LZF::compress $pkt
		3058	if 1024 <= length $pkt and $self->{can_lzf};
		3059
		3060	# split very large packets
		3061	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3062	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3063	$pkt = "frag";
		3064	}
		3065
		3066	$self->send_packet ($pkt);
		3067	}
		3068
		3069	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3070
		3071	Send a drawinfo or msg packet to the client, formatting the msg for the
		3072	client if neccessary. C<$type> should be a string identifying the type of
		3073	the message, with C<log> being the default. If C<$color> is negative, suppress
		3074	the message unless the client supports the msg packet.
		3075
		3076	=cut
		3077
		3078	# non-persistent channels (usually the info channel)
		3079	our %CHANNEL = (
		3080	"c/motd" => {
		3081	id => "infobox",
		3082	title => "MOTD",
		3083	reply => undef,
		3084	tooltip => "The message of the day",
		3085	},
		3086	"c/identify" => {
		3087	id => "infobox",
		3088	title => "Identify",
		3089	reply => undef,
		3090	tooltip => "Items recently identified",
		3091	},
		3092	"c/examine" => {
		3093	id => "infobox",
		3094	title => "Examine",
		3095	reply => undef,
		3096	tooltip => "Signs and other items you examined",
		3097	},
		3098	"c/shopinfo" => {
		3099	id => "infobox",
		3100	title => "Shop Info",
		3101	reply => undef,
		3102	tooltip => "What your bargaining skill tells you about the shop",
		3103	},
		3104	"c/book" => {
		3105	id => "infobox",
		3106	title => "Book",
		3107	reply => undef,
		3108	tooltip => "The contents of a note or book",
		3109	},
		3110	"c/lookat" => {
		3111	id => "infobox",
		3112	title => "Look",
		3113	reply => undef,
		3114	tooltip => "What you saw there",
		3115	},
		3116	"c/who" => {
		3117	id => "infobox",
		3118	title => "Players",
		3119	reply => undef,
		3120	tooltip => "Shows players who are currently online",
		3121	},
		3122	"c/body" => {
		3123	id => "infobox",
		3124	title => "Body Parts",
		3125	reply => undef,
		3126	tooltip => "Shows which body parts you posess and are available",
		3127	},
		3128	"c/statistics" => {
		3129	id => "infobox",
		3130	title => "Statistics",
		3131	reply => undef,
		3132	tooltip => "Shows your primary statistics",
		3133	},
		3134	"c/skills" => {
		3135	id => "infobox",
		3136	title => "Skills",
		3137	reply => undef,
		3138	tooltip => "Shows your experience per skill and item power",
		3139	},
		3140	"c/shopitems" => {
		3141	id => "infobox",
		3142	title => "Shop Items",
		3143	reply => undef,
		3144	tooltip => "Shows the items currently for sale in this shop",
		3145	},
		3146	"c/resistances" => {
		3147	id => "infobox",
		3148	title => "Resistances",
		3149	reply => undef,
		3150	tooltip => "Shows your resistances",
		3151	},
		3152	"c/pets" => {
		3153	id => "infobox",
		3154	title => "Pets",
		3155	reply => undef,
		3156	tooltip => "Shows information abotu your pets/a specific pet",
		3157	},
		3158	"c/perceiveself" => {
		3159	id => "infobox",
		3160	title => "Perceive Self",
		3161	reply => undef,
		3162	tooltip => "You gained detailed knowledge about yourself",
		3163	},
		3164	"c/uptime" => {
		3165	id => "infobox",
		3166	title => "Uptime",
		3167	reply => undef,
		3168	tooltip => "How long the server has been running since last restart",
		3169	},
		3170	"c/mapinfo" => {
		3171	id => "infobox",
		3172	title => "Map Info",
		3173	reply => undef,
		3174	tooltip => "Information related to the maps",
		3175	},
		3176	"c/party" => {
		3177	id => "party",
		3178	title => "Party",
		3179	reply => "gsay ",
		3180	tooltip => "Messages and chat related to your party",
		3181	},
		3182	"c/death" => {
		3183	id => "death",
		3184	title => "Death",
		3185	reply => undef,
		3186	tooltip => "Reason for and more info about your most recent death",
		3187	},
		3188	"c/say" => $SAY_CHANNEL,
		3189	"c/chat" => $CHAT_CHANNEL,
		3190	);
		3191
		3192	sub cf::client::send_msg {
		3193	my ($self, $channel, $msg, $color, @extra) = @_;
		3194
		3195	$msg = $self->pl->expand_cfpod ($msg)
		3196	unless $color & cf::NDI_VERBATIM;
		3197
		3198	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3199
		3200	# check predefined channels, for the benefit of C
		3201	if ($CHANNEL{$channel}) {
		3202	$channel = $CHANNEL{$channel};
		3203
		3204	$self->ext_msg (channel_info => $channel);
		3205	$channel = $channel->{id};
		3206
		3207	} elsif (ref $channel) {
		3208	# send meta info to client, if not yet sent
		3209	unless (exists $self->{channel}{$channel->{id}}) {
		3210	$self->{channel}{$channel->{id}} = $channel;
		3211	$self->ext_msg (channel_info => $channel);
		3212	}
		3213
		3214	$channel = $channel->{id};
		3215	}
		3216
		3217	return unless @extra || length $msg;
		3218
		3219	# default colour, mask it out
		3220	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3221	if $color & cf::NDI_DEF;
		3222
		3223	my $pkt = "msg "
		3224	. $self->{json_coder}->encode (
		3225	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3226	);
		3227
		3228	$self->send_big_packet ($pkt);
		3229	}
		3230
2110	=item $client->ext_event ($type, %msg)	3231	=item $client->ext_msg ($type, @msg)
2111		3232
2112	Sends an exti event to the client.	3233	Sends an ext event to the client.
2113		3234
2114	=cut	3235	=cut
2115		3236
2116	sub cf::client::ext_event($$%) {	3237	sub cf::client::ext_msg($$@) {
2117	my ($self, $type, %msg) = @_;	3238	my ($self, $type, @msg) = @_;
2118		3239
		3240	if ($self->extcmd == 2) {
		3241	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3242	} elsif ($self->extcmd == 1) { # TODO: remove
2119	$msg{msgtype} = "event_$type";	3243	push @msg, msgtype => "event_$type";
2120	$self->send_packet ("ext " . cf::to_json \%msg);	3244	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3245	}
		3246	}
		3247
		3248	=item $client->ext_reply ($msgid, @msg)
		3249
		3250	Sends an ext reply to the client.
		3251
		3252	=cut
		3253
		3254	sub cf::client::ext_reply($$@) {
		3255	my ($self, $id, @msg) = @_;
		3256
		3257	return unless $self->extcmd == 2;
		3258
		3259	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2121	}	3260	}
2122		3261
2123	=item $success = $client->query ($flags, "text", \&cb)	3262	=item $success = $client->query ($flags, "text", \&cb)
2124		3263
2125	Queues a query to the client, calling the given callback with	3264	Queues a query to the client, calling the given callback with
2126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3265	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2127	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3266	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2128		3267
2129	Queries can fail, so check the return code. Or don't, as queries will become	3268	Queries can fail, so check the return code. Or don't, as queries will
2130	reliable at some point in the future.	3269	become reliable at some point in the future.
2131		3270
2132	=cut	3271	=cut
2133		3272
2134	sub cf::client::query {	3273	sub cf::client::query {
2135	my ($self, $flags, $text, $cb) = @_;	3274	my ($self, $flags, $text, $cb) = @_;
…		…
2143	utf8::encode $text;	3282	utf8::encode $text;
2144	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3283	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2145		3284
2146	$self->send_packet ($self->{query_queue}[0][0])	3285	$self->send_packet ($self->{query_queue}[0][0])
2147	if @{ $self->{query_queue} } == 1;	3286	if @{ $self->{query_queue} } == 1;
		3287
		3288	1
2148	}	3289	}
2149		3290
2150	cf::client->attach (	3291	cf::client->attach (
		3292	on_connect => sub {
		3293	my ($ns) = @_;
		3294
		3295	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3296	},
2151	on_reply => sub {	3297	on_reply => sub {
2152	my ($ns, $msg) = @_;	3298	my ($ns, $msg) = @_;
2153		3299
2154	# this weird shuffling is so that direct followup queries	3300	# this weird shuffling is so that direct followup queries
2155	# get handled first	3301	# get handled first
…		…
2167	} else {	3313	} else {
2168	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3314	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2169	}	3315	}
2170	}	3316	}
2171	},	3317	},
		3318	on_exticmd => sub {
		3319	my ($ns, $buf) = @_;
		3320
		3321	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3322
		3323	if (ref $msg) {
		3324	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3325
		3326	my @reply;
		3327
		3328	if (my $cb = $EXTICMD{$type}) {
		3329	@reply = $cb->($ns, @payload);
		3330	}
		3331
		3332	$ns->ext_reply ($reply, @reply)
		3333	if $reply;
		3334
		3335	} else {
		3336	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3337	}
		3338
		3339	cf::override;
		3340	},
2172	);	3341	);
2173		3342
2174	=item $client->async (\&cb)	3343	=item $client->async (\&cb)
2175		3344
2176	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
…		…
2192		3361
2193	$coro	3362	$coro
2194	}	3363	}
2195		3364
2196	cf::client->attach (	3365	cf::client->attach (
2197	on_destroy => sub {	3366	on_client_destroy => sub {
2198	my ($ns) = @_;	3367	my ($ns) = @_;
2199		3368
2200	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2201	},	3370	},
2202	);	3371	);
…		…
2217	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
2218	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
2219		3388
2220	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
2221		3390
2222	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3391	$safe->permit_only (Opcode::opset qw(
		3392	:base_core :base_mem :base_orig :base_math :base_loop
		3393	grepstart grepwhile mapstart mapwhile
		3394	sort time
		3395	));
2223		3396
2224	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
2225		3398
2226	=pod	3399	=pod
2227		3400
2228	The following functions and methods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
2229		3402
2230	cf::object contr pay_amount pay_player map	3403	cf::object
		3404	contr pay_amount pay_player map x y force_find force_add destroy
		3405	insert remove name archname title slaying race decrease split
		3406	value
		3407
2231	cf::object::player player	3408	cf::object::player
2232	cf::player peaceful	3409	player
2233	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
2234		3416
2235	=cut	3417	=cut
2236		3418
2237	for (	3419	for (
2238	["cf::object" => qw(contr pay_amount pay_player map)],	3420	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3421	insert remove inv nrof name archname title slaying race
		3422	decrease split destroy change_exp value msg lore send_msg)],
2239	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
2240	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
2241	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
2242	) {	3426	) {
2243	no strict 'refs';
2244	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
2245	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2246	for @funs;	3429	for @funs;
2247	}	3430	}
2248		3431
…		…
2263		3446
2264	my $qcode = $code;	3447	my $qcode = $code;
2265	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2266	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
2267		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
2268	local $_;	3454	local $_;
2269	local @safe::cf::_safe_eval_args = values %vars;
2270		3455
2271	my $eval =	3456	my $eval =
2272	"do {\n"	3457	"do {\n"
2273	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2274	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
2275	. $code	3460	. $code
2276	. "\n}"	3461	. "\n}"
2277	;	3462	;
2278		3463
		3464	if ($CFG{safe_eval}) {
2279	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
2280	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2281	sub_generation_inc;	3468	sub_generation_inc;
		3469	} else {
		3470	local @cf::_safe_eval_args = values %vars;
		3471	@res = wantarray ? eval eval : scalar eval $eval;
		3472	}
2282		3473
2283	if ($@) {	3474	if ($@) {
2284	warn "$@";	3475	warn "$@",
2285	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
2286	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
2287	}	3478	}
2288		3479
2289	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
2290	}	3481	}
2291		3482
…		…
2305	=cut	3496	=cut
2306		3497
2307	sub register_script_function {	3498	sub register_script_function {
2308	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
2309		3500
2310	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
2311	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
2312	}	3503	}
2313		3504
2314	=back	3505	=back
2315		3506
2316	=cut	3507	=cut
2317
2318	#############################################################################
2319
2320	=head2 EXTENSION DATABASE SUPPORT
2321
2322	Crossfire maintains a very simple database for extension use. It can
2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2324	convert to/from binary).
2325
2326	The parameter C<$family> should best start with the name of the extension
2327	using it, it should be unique.
2328
2329	=over 4
2330
2331	=item $value = cf::db_get $family => $key
2332
2333	Returns a single value from the database.
2334
2335	=item cf::db_put $family => $key => $value
2336
2337	Stores the given C<$value> in the family.
2338
2339	=cut
2340
2341	our $DB;
2342
2343	sub db_init {
2344	unless ($DB) {
2345	$DB = BDB::db_create $DB_ENV;
2346
2347	cf::sync_job {
2348	eval {
2349	$DB->set_flags (BDB::CHKSUM);
2350
2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2353	cf::cleanup "db_open(db): $!" if $!;
2354	};
2355	cf::cleanup "db_open(db): $@" if $@;
2356	};
2357	}
2358	}
2359
2360	sub db_get($$) {
2361	my $key = "$_[0]/$_[1]";
2362
2363	cf::sync_job {
2364	BDB::db_get $DB, undef, $key, my $data;
2365
2366	$! ? ()
2367	: $data
2368	}
2369	}
2370
2371	sub db_put($$$) {
2372	BDB::dbreq_pri 4;
2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2374	}
2375
2376	=item cf::cache $id => [$paths...], $processversion => $process
2377
2378	Generic caching function that returns the value of the resource $id,
2379	caching and regenerating as required.
2380
2381	This function can block.
2382
2383	=cut
2384
2385	sub cache {
2386	my ($id, $src, $processversion, $process) = @_;
2387
2388	my $meta =
2389	join "\x00",
2390	$processversion,
2391	map {
2392	aio_stat $_
2393	and Carp::croak "$_: $!";
2394
2395	($_, (stat _)[7,9])
2396	} @$src;
2397
2398	my $dbmeta = db_get cache => "$id/meta";
2399	if ($dbmeta ne $meta) {
2400	# changed, we may need to process
2401
2402	my @data;
2403	my $md5;
2404
2405	for (0 .. $#$src) {
2406	0 <= aio_load $src->[$_], $data[$_]
2407	or Carp::croak "$src->[$_]: $!";
2408	}
2409
2410	# if processing is expensive, check
2411	# checksum first
2412	if (1) {
2413	$md5 =
2414	join "\x00",
2415	$processversion,
2416	map {
2417	Coro::cede;
2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
2419	} 0.. $#$src;
2420
2421
2422	my $dbmd5 = db_get cache => "$id/md5";
2423	if ($dbmd5 eq $md5) {
2424	db_put cache => "$id/meta", $meta;
2425
2426	return db_get cache => "$id/data";
2427	}
2428	}
2429
2430	my $t1 = Time::HiRes::time;
2431	my $data = $process->(\@data);
2432	my $t2 = Time::HiRes::time;
2433
2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2435
2436	db_put cache => "$id/data", $data;
2437	db_put cache => "$id/md5" , $md5;
2438	db_put cache => "$id/meta", $meta;
2439
2440	return $data;
2441	}
2442
2443	db_get cache => "$id/data"
2444	}
2445
2446	=item fork_call { }, $args
2447
2448	Executes the given code block with the given arguments in a seperate
2449	process, returning the results. Everything must be serialisable with
2450	Coro::Storable. May, of course, block. Note that the executed sub may
2451	never block itself or use any form of Event handling.
2452
2453	=cut
2454
2455	sub fork_call(&@) {
2456	my ($cb, @args) = @_;
2457
2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2459	# or die "socketpair: $!";
2460	pipe my $fh1, my $fh2
2461	or die "pipe: $!";
2462
2463	if (my $pid = fork) {
2464	close $fh2;
2465
2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2467	$res = Coro::Storable::thaw $res;
2468
2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2470
2471	die $$res unless "ARRAY" eq ref $res;
2472
2473	return wantarray ? @$res : $res->[-1];
2474	} else {
2475	reset_signals;
2476	local $SIG{__WARN__};
2477	local $SIG{__DIE__};
2478	eval {
2479	close $fh1;
2480
2481	my @res = eval { $cb->(@args) };
2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2483	};
2484
2485	warn $@ if $@;
2486	_exit 0;
2487	}
2488	}
2489
2490
2491		3508
2492	#############################################################################	3509	#############################################################################
2493	# the server's init and main functions	3510	# the server's init and main functions
2494		3511
		3512	our %FACEHASH; # hash => idx, #d# HACK for http server
		3513
2495	sub load_facedata($) {	3514	sub load_facedata($) {
2496	my ($path) = @_;	3515	my ($path) = @_;
2497		3516
		3517	# HACK to clear player env face cache, we need some signal framework
		3518	# for this (global event?)
		3519	%ext::player_env::MUSIC_FACE_CACHE = ();
		3520
		3521	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3522
2498	warn "loading facedata from $path\n";	3523	trace "loading facedata from $path\n";
2499		3524
2500	my $facedata;	3525	my $facedata = decode_storable load_file $path;
2501	0 < aio_load $path, $facedata
2502	or die "$path: $!";
2503
2504	$facedata = Coro::Storable::thaw $facedata;
2505		3526
2506	$facedata->{version} == 2	3527	$facedata->{version} == 2
2507	or cf::cleanup "$path: version mismatch, cannot proceed.";	3528	or cf::cleanup "$path: version mismatch, cannot proceed.";
2508		3529
		3530	# patch in the exptable
		3531	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3532	$facedata->{resource}{"res/exp_table"} = {
		3533	type => FT_RSRC,
		3534	data => $exp_table,
		3535	hash => (cf::face::mangle_chksum Digest::MD5::md5 $exp_table),
		3536	};
		3537	cf::cede_to_tick;
		3538
2509	{	3539	{
2510	my $faces = $facedata->{faceinfo};	3540	my $faces = $facedata->{faceinfo};
2511		3541
2512	while (my ($face, $info) = each %$faces) {	3542	for my $face (sort keys %$faces) {
		3543	my $info = $faces->{$face};
2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3544	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3545
2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3546	cf::face::set_visibility $idx, $info->{visibility};
		3547	cf::face::set_magicmap $idx, $info->{magicmap};
2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3548	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3549	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2517	Coro::cede;	3550	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3551	$FACEHASH{$info->{hash64}} = $idx;#d#
		3552
		3553	cf::cede_to_tick;
2518	}	3554	}
2519		3555
2520	while (my ($face, $info) = each %$faces) {	3556	while (my ($face, $info) = each %$faces) {
2521	next unless $info->{smooth};	3557	next unless $info->{smooth};
		3558
2522	my $idx = cf::face::find $face	3559	my $idx = cf::face::find $face
2523	or next;	3560	or next;
		3561
2524	if (my $smooth = cf::face::find $info->{smooth}) {	3562	if (my $smooth = cf::face::find $info->{smooth}) {
		3563	cf::face::set_smooth $idx, $smooth;
2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3564	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2526	} else {	3565	} else {
2527	warn "smooth face '$info->{smooth}' not found for face '$face'";	3566	error "smooth face '$info->{smooth}' not found for face '$face'";
2528	}	3567	}
2529	Coro::cede;	3568
		3569	cf::cede_to_tick;
2530	}	3570	}
2531	}	3571	}
2532		3572
2533	{	3573	{
2534	my $anims = $facedata->{animinfo};	3574	my $anims = $facedata->{animinfo};
2535		3575
2536	while (my ($anim, $info) = each %$anims) {	3576	while (my ($anim, $info) = each %$anims) {
2537	cf::anim::set $anim, $info->{frames}, $info->{facings};	3577	cf::anim::set $anim, $info->{frames}, $info->{facings};
2538	Coro::cede;	3578	cf::cede_to_tick;
2539	}	3579	}
2540		3580
2541	cf::anim::invalidate_all; # d'oh	3581	cf::anim::invalidate_all; # d'oh
2542	}	3582	}
2543		3583
		3584	{
		3585	my $res = $facedata->{resource};
		3586
		3587	while (my ($name, $info) = each %$res) {
		3588	if (defined (my $type = $info->{type})) {
		3589	# TODO: different hash - must free and use new index, or cache ixface data queue
		3590	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3591
		3592	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3593	cf::face::set_type $idx, $type;
		3594	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3595	$FACEHASH{$info->{hash}} = $idx;#d#
		3596	} else {
		3597	# $RESOURCE{$name} = $info; # unused
		3598	}
		3599
		3600	cf::cede_to_tick;
		3601	}
		3602	}
		3603
		3604	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3605
2544	1	3606	1
2545	}	3607	}
2546		3608
		3609	register_exticmd fx_want => sub {
		3610	my ($ns, $want) = @_;
		3611
		3612	while (my ($k, $v) = each %$want) {
		3613	$ns->fx_want ($k, $v);
		3614	}
		3615	};
		3616
		3617	sub load_resource_file($) {
		3618	my $guard = lock_acquire "load_resource_file";
		3619
		3620	my $status = load_resource_file_ $_[0];
		3621	get_slot 0.1, 100;
		3622	cf::arch::commit_load;
		3623
		3624	$status
		3625	}
		3626
2547	sub reload_regions {	3627	sub reload_regions {
		3628	# HACK to clear player env face cache, we need some signal framework
		3629	# for this (global event?)
		3630	%ext::player_env::MUSIC_FACE_CACHE = ();
		3631
2548	load_resource_file "$MAPDIR/regions"	3632	load_resource_file "$MAPDIR/regions"
2549	or die "unable to load regions file\n";	3633	or die "unable to load regions file\n";
		3634
		3635	for (cf::region::list) {
		3636	$_->{match} = qr/$_->{match}/
		3637	if exists $_->{match};
		3638	}
2550	}	3639	}
2551		3640
2552	sub reload_facedata {	3641	sub reload_facedata {
2553	load_facedata "$DATADIR/facedata"	3642	load_facedata "$DATADIR/facedata"
2554	or die "unable to load facedata\n";	3643	or die "unable to load facedata\n";
…		…
2562	sub reload_treasures {	3651	sub reload_treasures {
2563	load_resource_file "$DATADIR/treasures"	3652	load_resource_file "$DATADIR/treasures"
2564	or die "unable to load treasurelists\n";	3653	or die "unable to load treasurelists\n";
2565	}	3654	}
2566		3655
		3656	sub reload_sound {
		3657	trace "loading sound config from $DATADIR/sound\n";
		3658
		3659	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3660
		3661	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3662	my $sound = $soundconf->{compat}[$_]
		3663	or next;
		3664
		3665	my $face = cf::face::find "sound/$sound->[1]";
		3666	cf::sound::set $sound->[0] => $face;
		3667	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3668	}
		3669
		3670	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3671	my $face = cf::face::find "sound/$v";
		3672	cf::sound::set $k => $face;
		3673	}
		3674	}
		3675
2567	sub reload_resources {	3676	sub reload_resources {
2568	warn "reloading resource files...\n";	3677	trace "reloading resource files...\n";
2569		3678
		3679	reload_exp_table;
		3680	reload_materials;
		3681	reload_facedata;
		3682	reload_sound;
		3683	reload_archetypes;
2570	reload_regions;	3684	reload_regions;
2571	reload_facedata;
2572	reload_archetypes;
2573	reload_treasures;	3685	reload_treasures;
2574		3686
2575	warn "finished reloading resource files\n";	3687	trace "finished reloading resource files\n";
2576	}	3688	}
2577		3689
2578	sub init {	3690	sub reload_config {
2579	reload_resources;	3691	trace "reloading config file...\n";
2580	}
2581		3692
2582	sub cfg_load {	3693	my $config = load_file "$CONFDIR/config";
2583	open my $fh, "<:utf8", "$CONFDIR/config"	3694	utf8::decode $config;
2584	or return;	3695	*CFG = decode_yaml $config;
2585		3696
2586	local $/;
2587	*CFG = YAML::Syck::Load <$fh>;
2588
2589	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3697	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2590		3698
2591	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3699	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2592	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3700	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2593		3701
2594	if (exists $CFG{mlockall}) {	3702	if (exists $CFG{mlockall}) {
…		…
2598	};	3706	};
2599	warn $@ if $@;	3707	warn $@ if $@;
2600	}	3708	}
2601	}	3709	}
2602		3710
		3711	sub pidfile() {
		3712	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3713	or die "$PIDFILE: $!";
		3714	flock $fh, &Fcntl::LOCK_EX
		3715	or die "$PIDFILE: flock: $!";
		3716	$fh
		3717	}
		3718
		3719	# make sure only one server instance is running at any one time
		3720	sub atomic {
		3721	my $fh = pidfile;
		3722
		3723	my $pid = <$fh>;
		3724	kill 9, $pid if $pid > 0;
		3725
		3726	seek $fh, 0, 0;
		3727	print $fh $$;
		3728	}
		3729
		3730	sub main_loop {
		3731	trace "EV::loop starting\n";
		3732	if (1) {
		3733	EV::loop;
		3734	}
		3735	trace "EV::loop returned\n";
		3736	goto &main_loop unless $REALLY_UNLOOP;
		3737	}
		3738
2603	sub main {	3739	sub main {
		3740	cf::init_globals; # initialise logging
		3741
		3742	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3743	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3744	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3745	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3746
		3747	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3748
2604	# we must not ever block the main coroutine	3749	# we must not ever block the main coroutine
2605	local $Coro::idle = sub {	3750	$Coro::idle = sub {
2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3751	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2607	(async {	3752	(async {
2608	Event::one_event;	3753	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3754	EV::loop EV::LOOP_ONESHOT;
2609	})->prio (Coro::PRIO_MAX);	3755	})->prio (Coro::PRIO_MAX);
2610	};	3756	};
2611		3757
2612	cfg_load;	3758	evthread_start IO::AIO::poll_fileno;
		3759
		3760	cf::sync_job {
		3761	cf::incloader::init ();
		3762
		3763	cf::init_anim;
		3764	cf::init_attackmess;
		3765	cf::init_dynamic;
		3766
		3767	cf::load_settings;
		3768
		3769	reload_resources;
		3770	reload_config;
2613	db_init;	3771	db_init;
		3772
		3773	cf::init_uuid;
		3774	cf::init_signals;
		3775	cf::init_skills;
		3776
		3777	cf::init_beforeplay;
		3778
		3779	atomic;
		3780
2614	load_extensions;	3781	load_extensions;
2615		3782
2616	$TICK_WATCHER->start;	3783	utime time, time, $RUNTIMEFILE;
2617	Event::loop;	3784
		3785	# no (long-running) fork's whatsoever before this point(!)
		3786	use POSIX ();
		3787	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3788
		3789	cf::_post_init 0;
		3790	};
		3791
		3792	cf::object::thawer::errors_are_fatal 0;
		3793	info "parse errors in files are no longer fatal from this point on.\n";
		3794
		3795	AE::postpone {
		3796	undef &main; # free gobs of memory :)
		3797	};
		3798
		3799	goto &main_loop;
2618	}	3800	}
2619		3801
2620	#############################################################################	3802	#############################################################################
2621	# initialisation and cleanup	3803	# initialisation and cleanup
2622		3804
2623	# install some emergency cleanup handlers	3805	# install some emergency cleanup handlers
2624	BEGIN {	3806	BEGIN {
		3807	our %SIGWATCHER = ();
2625	for my $signal (qw(INT HUP TERM)) {	3808	for my $signal (qw(INT HUP TERM)) {
2626	Event->signal (	3809	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2627	reentrant => 0,
2628	data => WF_AUTOCANCEL,
2629	signal => $signal,
2630	prio => 0,
2631	cb => sub {
2632	cf::cleanup "SIG$signal";	3810	cf::cleanup "SIG$signal";
2633	},
2634	);	3811	};
		3812	}
		3813	}
		3814
		3815	sub write_runtime_sync {
		3816	my $t0 = AE::time;
		3817
		3818	# first touch the runtime file to show we are still running:
		3819	# the fsync below can take a very very long time.
		3820
		3821	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3822
		3823	my $guard = cf::lock_acquire "write_runtime";
		3824
		3825	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3826	or return;
		3827
		3828	my $value = $cf::RUNTIME + 90 + 10;
		3829	# 10 is the runtime save interval, for a monotonic clock
		3830	# 60 allows for the watchdog to kill the server.
		3831
		3832	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3833	and return;
		3834
		3835	# always fsync - this file is important
		3836	aio_fsync $fh
		3837	and return;
		3838
		3839	# touch it again to show we are up-to-date
		3840	aio_utime $fh, undef, undef;
		3841
		3842	close $fh
		3843	or return;
		3844
		3845	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3846	and return;
		3847
		3848	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3849
2635	}	3850	1
		3851	}
		3852
		3853	our $uuid_lock;
		3854	our $uuid_skip;
		3855
		3856	sub write_uuid_sync($) {
		3857	$uuid_skip ||= $_[0];
		3858
		3859	return if $uuid_lock;
		3860	local $uuid_lock = 1;
		3861
		3862	my $uuid = "$LOCALDIR/uuid";
		3863
		3864	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3865	or return;
		3866
		3867	my $value = uuid_seq uuid_cur;
		3868
		3869	unless ($value) {
		3870	info "cowardly refusing to write zero uuid value!\n";
		3871	return;
		3872	}
		3873
		3874	my $value = uuid_str $value + $uuid_skip;
		3875	$uuid_skip = 0;
		3876
		3877	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3878	and return;
		3879
		3880	# always fsync - this file is important
		3881	aio_fsync $fh
		3882	and return;
		3883
		3884	close $fh
		3885	or return;
		3886
		3887	aio_rename "$uuid~", $uuid
		3888	and return;
		3889
		3890	trace "uuid file written ($value).\n";
		3891
		3892	1
		3893
		3894	}
		3895
		3896	sub write_uuid($$) {
		3897	my ($skip, $sync) = @_;
		3898
		3899	$sync ? write_uuid_sync $skip
		3900	: async { write_uuid_sync $skip };
2636	}	3901	}
2637		3902
2638	sub emergency_save() {	3903	sub emergency_save() {
2639	my $freeze_guard = cf::freeze_mainloop;	3904	my $freeze_guard = cf::freeze_mainloop;
2640		3905
2641	warn "enter emergency perl save\n";	3906	info "emergency_perl_save: enter\n";
		3907
		3908	# this is a trade-off: we want to be very quick here, so
		3909	# save all maps without fsync, and later call a global sync
		3910	# (which in turn might be very very slow)
		3911	local $USE_FSYNC = 0;
2642		3912
2643	cf::sync_job {	3913	cf::sync_job {
		3914	cf::write_runtime_sync; # external watchdog should not bark
		3915
2644	# use a peculiar iteration method to avoid tripping on perl	3916	# use a peculiar iteration method to avoid tripping on perl
2645	# refcount bugs in for. also avoids problems with players	3917	# refcount bugs in for. also avoids problems with players
2646	# and maps saved/destroyed asynchronously.	3918	# and maps saved/destroyed asynchronously.
2647	warn "begin emergency player save\n";	3919	info "emergency_perl_save: begin player save\n";
2648	for my $login (keys %cf::PLAYER) {	3920	for my $login (keys %cf::PLAYER) {
2649	my $pl = $cf::PLAYER{$login} or next;	3921	my $pl = $cf::PLAYER{$login} or next;
2650	$pl->valid or next;	3922	$pl->valid or next;
		3923	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2651	$pl->save;	3924	$pl->save;
2652	}	3925	}
2653	warn "end emergency player save\n";	3926	info "emergency_perl_save: end player save\n";
2654		3927
2655	warn "begin emergency map save\n";	3928	cf::write_runtime_sync; # external watchdog should not bark
		3929
		3930	info "emergency_perl_save: begin map save\n";
2656	for my $path (keys %cf::MAP) {	3931	for my $path (keys %cf::MAP) {
2657	my $map = $cf::MAP{$path} or next;	3932	my $map = $cf::MAP{$path} or next;
2658	$map->valid or next;	3933	$map->valid or next;
2659	$map->save;	3934	$map->save;
2660	}	3935	}
2661	warn "end emergency map save\n";	3936	info "emergency_perl_save: end map save\n";
2662		3937
2663	warn "begin emergency database checkpoint\n";	3938	cf::write_runtime_sync; # external watchdog should not bark
		3939
		3940	info "emergency_perl_save: begin database checkpoint\n";
2664	BDB::db_env_txn_checkpoint $DB_ENV;	3941	BDB::db_env_txn_checkpoint $DB_ENV;
2665	warn "end emergency database checkpoint\n";	3942	info "emergency_perl_save: end database checkpoint\n";
		3943
		3944	info "emergency_perl_save: begin write uuid\n";
		3945	write_uuid_sync 1;
		3946	info "emergency_perl_save: end write uuid\n";
		3947
		3948	cf::write_runtime_sync; # external watchdog should not bark
		3949
		3950	trace "emergency_perl_save: syncing database to disk";
		3951	BDB::db_env_txn_checkpoint $DB_ENV;
		3952
		3953	info "emergency_perl_save: starting sync\n";
		3954	IO::AIO::aio_sync sub {
		3955	info "emergency_perl_save: finished sync\n";
		3956	};
		3957
		3958	cf::write_runtime_sync; # external watchdog should not bark
		3959
		3960	trace "emergency_perl_save: flushing outstanding aio requests";
		3961	while (IO::AIO::nreqs || BDB::nreqs) {
		3962	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3963	}
		3964
		3965	cf::write_runtime_sync; # external watchdog should not bark
2666	};	3966	};
2667		3967
2668	warn "leave emergency perl save\n";	3968	info "emergency_perl_save: leave\n";
2669	}	3969	}
2670		3970
2671	sub post_cleanup {	3971	sub post_cleanup {
2672	my ($make_core) = @_;	3972	my ($make_core) = @_;
2673		3973
		3974	IO::AIO::flush;
		3975
2674	warn Carp::longmess "post_cleanup backtrace"	3976	error Carp::longmess "post_cleanup backtrace"
2675	if $make_core;	3977	if $make_core;
		3978
		3979	my $fh = pidfile;
		3980	unlink $PIDFILE if <$fh> == $$;
		3981	}
		3982
		3983	# a safer delete_package, copied from Symbol
		3984	sub clear_package($) {
		3985	my $pkg = shift;
		3986
		3987	# expand to full symbol table name if needed
		3988	unless ($pkg =~ /^main::.*::$/) {
		3989	$pkg = "main$pkg" if $pkg =~ /^::/;
		3990	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3991	$pkg .= '::' unless $pkg =~ /::$/;
		3992	}
		3993
		3994	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3995	my $stem_symtab = *{$stem}{HASH};
		3996
		3997	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3998	or return;
		3999
		4000	# clear all symbols
		4001	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4002	for my $name (keys %$leaf_symtab) {
		4003	_gv_clear *{"$pkg$name"};
		4004	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4005	}
2676	}	4006	}
2677		4007
2678	sub do_reload_perl() {	4008	sub do_reload_perl() {
2679	# can/must only be called in main	4009	# can/must only be called in main
2680	if ($Coro::current != $Coro::main) {	4010	unless (in_main) {
2681	warn "can only reload from main coroutine";	4011	error "can only reload from main coroutine";
2682	return;	4012	return;
2683	}	4013	}
2684		4014
2685	warn "reloading...";	4015	return if $RELOAD++;
2686		4016
2687	warn "entering sync_job";	4017	my $t1 = AE::time;
2688		4018
		4019	while ($RELOAD) {
		4020	cf::get_slot 0.1, -1, "reload_perl";
		4021	info "perl_reload: reloading...";
		4022
		4023	trace "perl_reload: entering sync_job";
		4024
2689	cf::sync_job {	4025	cf::sync_job {
2690	cf::write_runtime; # external watchdog should not bark
2691	cf::emergency_save;	4026	#cf::emergency_save;
2692	cf::write_runtime; # external watchdog should not bark
2693		4027
2694	warn "syncing database to disk";
2695	BDB::db_env_txn_checkpoint $DB_ENV;
2696
2697	# if anything goes wrong in here, we should simply crash as we already saved
2698
2699	warn "cancelling all WF_AUTOCANCEL watchers";
2700	for (Event::all_watchers) {
2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2702	}
2703
2704	warn "flushing outstanding aio requests";
2705	for (;;) {
2706	BDB::flush;
2707	IO::AIO::flush;
2708	Coro::cede;
2709	last unless IO::AIO::nreqs || BDB::nreqs;
2710	warn "iterate...";
2711	}
2712
2713	++$RELOAD;
2714
2715	warn "cancelling all extension coros";	4028	trace "perl_reload: cancelling all extension coros";
2716	$_->cancel for values %EXT_CORO;	4029	$_->cancel for values %EXT_CORO;
2717	%EXT_CORO = ();	4030	%EXT_CORO = ();
2718		4031
2719	warn "removing commands";	4032	trace "perl_reload: removing commands";
2720	%COMMAND = ();	4033	%COMMAND = ();
2721		4034
2722	warn "removing ext commands";	4035	trace "perl_reload: removing ext/exti commands";
2723	%EXTCMD = ();	4036	%EXTCMD = ();
		4037	%EXTICMD = ();
2724		4038
2725	warn "unloading/nuking all extensions";	4039	trace "perl_reload: unloading/nuking all extensions";
2726	for my $pkg (@EXTS) {	4040	for my $pkg (@EXTS) {
2727	warn "... unloading $pkg";	4041	trace "... unloading $pkg";
2728		4042
2729	if (my $cb = $pkg->can ("unload")) {	4043	if (my $cb = $pkg->can ("unload")) {
2730	eval {	4044	eval {
2731	$cb->($pkg);	4045	$cb->($pkg);
2732	1	4046	1
2733	} or warn "$pkg unloaded, but with errors: $@";	4047	} or error "$pkg unloaded, but with errors: $@";
		4048	}
		4049
		4050	trace "... clearing $pkg";
		4051	clear_package $pkg;
2734	}	4052	}
2735		4053
2736	warn "... nuking $pkg";
2737	Symbol::delete_package $pkg;
2738	}
2739
2740	warn "unloading all perl modules loaded from $LIBDIR";	4054	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2741	while (my ($k, $v) = each %INC) {	4055	while (my ($k, $v) = each %INC) {
2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2743		4057
2744	warn "... unloading $k";	4058	trace "... unloading $k";
2745	delete $INC{$k};	4059	delete $INC{$k};
2746		4060
2747	$k =~ s/\.pm$//;	4061	$k =~ s/\.pm$//;
2748	$k =~ s/\//::/g;	4062	$k =~ s/\//::/g;
2749		4063
2750	if (my $cb = $k->can ("unload_module")) {	4064	if (my $cb = $k->can ("unload_module")) {
2751	$cb->();	4065	$cb->();
		4066	}
		4067
		4068	clear_package $k;
2752	}	4069	}
2753		4070
2754	Symbol::delete_package $k;
2755	}
2756
2757	warn "getting rid of safe::, as good as possible";	4071	trace "perl_reload: getting rid of safe::, as good as possible";
2758	Symbol::delete_package "safe::$_"	4072	clear_package "safe::$_"
2759	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4073	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2760		4074
2761	warn "unloading cf.pm \"a bit\"";	4075	trace "perl_reload: unloading cf.pm \"a bit\"";
2762	delete $INC{"cf.pm"};	4076	delete $INC{"cf.pm"};
2763	delete $INC{"cf/pod.pm"};	4077	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2764		4078
2765	# don't, removes xs symbols, too,	4079	# don't, removes xs symbols, too,
2766	# and global variables created in xs	4080	# and global variables created in xs
2767	#Symbol::delete_package __PACKAGE__;	4081	#clear_package __PACKAGE__;
2768		4082
2769	warn "unload completed, starting to reload now";	4083	info "perl_reload: unload completed, starting to reload now";
2770		4084
2771	warn "reloading cf.pm";	4085	trace "perl_reload: reloading cf.pm";
2772	require cf;	4086	require cf;
2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4087	cf::_connect_to_perl_1;
2774		4088
2775	warn "loading config and database again";	4089	trace "perl_reload: loading config and database again";
2776	cf::cfg_load;	4090	cf::reload_config;
2777		4091
2778	warn "loading extensions";	4092	trace "perl_reload: loading extensions";
2779	cf::load_extensions;	4093	cf::load_extensions;
2780		4094
		4095	if ($REATTACH_ON_RELOAD) {
2781	warn "reattaching attachments to objects/players";	4096	trace "perl_reload: reattaching attachments to objects/players";
2782	_global_reattach; # objects, sockets	4097	_global_reattach; # objects, sockets
2783	warn "reattaching attachments to maps";	4098	trace "perl_reload: reattaching attachments to maps";
2784	reattach $_ for values %MAP;	4099	reattach $_ for values %MAP;
2785	warn "reattaching attachments to players";	4100	trace "perl_reload: reattaching attachments to players";
2786	reattach $_ for values %PLAYER;	4101	reattach $_ for values %PLAYER;
		4102	}
2787		4103
2788	warn "leaving sync_job";	4104	cf::_post_init 1;
2789		4105
		4106	trace "perl_reload: leaving sync_job";
		4107
2790	1	4108	1
2791	} or do {	4109	} or do {
2792	warn $@;	4110	error $@;
2793	warn "error while reloading, exiting.";	4111	cf::cleanup "perl_reload: error, exiting.";
2794	exit 1;	4112	};
		4113
		4114	--$RELOAD;
2795	};	4115	}
2796		4116
2797	warn "reloaded";	4117	$t1 = AE::time - $t1;
		4118	info "perl_reload: completed in ${t1}s\n";
2798	};	4119	};
2799		4120
2800	our $RELOAD_WATCHER; # used only during reload	4121	our $RELOAD_WATCHER; # used only during reload
2801		4122
2802	sub reload_perl() {	4123	sub reload_perl() {
2803	# doing reload synchronously and two reloads happen back-to-back,	4124	# doing reload synchronously and two reloads happen back-to-back,
2804	# coro crashes during coro_state_free->destroy here.	4125	# coro crashes during coro_state_free->destroy here.
2805		4126
2806	$RELOAD_WATCHER ||= Event->timer (	4127	$RELOAD_WATCHER ||= cf::async {
2807	reentrant => 0,	4128	Coro::AIO::aio_wait cache_extensions;
2808	after => 0,	4129
2809	data => WF_AUTOCANCEL,	4130	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2810	cb => sub {
2811	do_reload_perl;	4131	do_reload_perl;
2812	undef $RELOAD_WATCHER;	4132	undef $RELOAD_WATCHER;
2813	},	4133	};
2814	);	4134	};
2815	}	4135	}
2816		4136
2817	register_command "reload" => sub {	4137	register_command "reload" => sub {
2818	my ($who, $arg) = @_;	4138	my ($who, $arg) = @_;
2819		4139
2820	if ($who->flag (FLAG_WIZ)) {	4140	if ($who->flag (FLAG_WIZ)) {
2821	$who->message ("reloading server.");	4141	$who->message ("reloading server.");
		4142	async {
		4143	$Coro::current->{desc} = "perl_reload";
2822	async { reload_perl };	4144	reload_perl;
		4145	};
2823	}	4146	}
2824	};	4147	};
2825		4148
2826	unshift @INC, $LIBDIR;	4149	#############################################################################
2827		4150
2828	my $bug_warning = 0;	4151	my $bug_warning = 0;
2829		4152
2830	our @WAIT_FOR_TICK;
2831	our @WAIT_FOR_TICK_BEGIN;
2832
2833	sub wait_for_tick {	4153	sub wait_for_tick() {
2834	return unless $TICK_WATCHER->is_active;	4154	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2835	return if $Coro::current == $Coro::main;
2836		4155
2837	my $signal = new Coro::Signal;	4156	$WAIT_FOR_TICK->wait;
2838	push @WAIT_FOR_TICK, $signal;
2839	$signal->wait;
2840	}	4157	}
2841		4158
2842	sub wait_for_tick_begin {	4159	sub wait_for_tick_begin() {
2843	return unless $TICK_WATCHER->is_active;	4160	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2844	return if $Coro::current == $Coro::main;
2845		4161
2846	my $signal = new Coro::Signal;	4162	my $signal = new Coro::Signal;
2847	push @WAIT_FOR_TICK_BEGIN, $signal;	4163	push @WAIT_FOR_TICK_BEGIN, $signal;
2848	$signal->wait;	4164	$signal->wait;
2849	}	4165	}
2850		4166
2851	$TICK_WATCHER = Event->timer (	4167	sub tick {
2852	reentrant => 0,
2853	parked => 1,
2854	prio => 0,
2855	at => $NEXT_TICK || $TICK,
2856	data => WF_AUTOCANCEL,
2857	cb => sub {
2858	if ($Coro::current != $Coro::main) {	4168	if ($Coro::current != $Coro::main) {
2859	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4169	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2860	unless ++$bug_warning > 10;	4170	unless ++$bug_warning > 10;
2861	return;	4171	return;
2862	}	4172	}
2863		4173
2864	$NOW = $tick_start = Event::time;	4174	cf::one_tick; # one server iteration
2865		4175
2866	cf::server_tick; # one server iteration	4176	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2867		4177
2868	$RUNTIME += $TICK;
2869	$NEXT_TICK += $TICK;
2870
2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4178	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2872	$NEXT_RUNTIME_WRITE = $NOW + 10;	4179	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2873	Coro::async_pool {	4180	Coro::async_pool {
		4181	$Coro::current->{desc} = "runtime saver";
2874	write_runtime	4182	write_runtime_sync
2875	or warn "ERROR: unable to write runtime file: $!";	4183	or error "ERROR: unable to write runtime file: $!";
2876	};
2877	}	4184	};
		4185	}
2878		4186
2879	# my $AFTER = Event::time;
2880	# warn $AFTER - $NOW;#d#
2881
2882	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4187	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2883	$sig->send;	4188	$sig->send;
2884	}	4189	}
2885	while (my $sig = shift @WAIT_FOR_TICK) {	4190	$WAIT_FOR_TICK->broadcast;
2886	$sig->send;
2887	}
2888		4191
2889	$NOW = Event::time;	4192	$LOAD = ($NOW - $TICK_START) / $TICK;
2890
2891	# if we are delayed by four ticks or more, skip them all
2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2893
2894	$TICK_WATCHER->at ($NEXT_TICK);
2895	$TICK_WATCHER->start;
2896
2897	$LOAD = ($NOW - $tick_start) / $TICK;
2898	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4193	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2899		4194
2900	_post_tick;	4195	if (0) {
2901		4196	if ($NEXT_TICK) {
2902		4197	my $jitter = $TICK_START - $NEXT_TICK;
		4198	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4199	debug "jitter $JITTER\n";#d#
		4200	}
2903	},	4201	}
2904	);	4202	}
2905		4203
2906	{	4204	{
2907	BDB::max_poll_time $TICK * 0.1;	4205	# configure BDB
2908	$BDB_POLL_WATCHER = Event->io (	4206
2909	reentrant => 0,
2910	fd => BDB::poll_fileno,
2911	poll => 'r',
2912	prio => 0,
2913	data => WF_AUTOCANCEL,
2914	cb => \&BDB::poll_cb,
2915	);
2916	BDB::min_parallel 8;	4207	BDB::min_parallel 16;
2917		4208	BDB::max_poll_reqs $TICK * 0.1;
2918	BDB::set_sync_prepare {	4209	#$AnyEvent::BDB::WATCHER->priority (1);
2919	my $status;
2920	my $current = $Coro::current;
2921	(
2922	sub {
2923	$status = $!;
2924	$current->ready; undef $current;
2925	},
2926	sub {
2927	Coro::schedule while defined $current;
2928	$! = $status;
2929	},
2930	)
2931	};
2932		4210
2933	unless ($DB_ENV) {	4211	unless ($DB_ENV) {
2934	$DB_ENV = BDB::db_env_create;	4212	$DB_ENV = BDB::db_env_create;
		4213	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4214	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4215	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4216	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4217	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2935		4218
2936	cf::sync_job {	4219	cf::sync_job {
2937	eval {	4220	eval {
2938	BDB::db_env_open	4221	BDB::db_env_open
2939	$DB_ENV,	4222	$DB_ENV,
…		…
2941	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4224	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2942	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4225	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2943	0666;	4226	0666;
2944		4227
2945	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4228	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2946
2947	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2948	$DB_ENV->set_lk_detect;
2949	};	4229	};
2950		4230
2951	cf::cleanup "db_env_open(db): $@" if $@;	4231	cf::cleanup "db_env_open(db): $@" if $@;
2952	};	4232	};
2953	}	4233	}
		4234
		4235	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4236	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4237	};
		4238	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4239	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4240	};
		4241	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4242	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4243	};
2954	}	4244	}
2955		4245
2956	{	4246	{
		4247	# configure IO::AIO
		4248
2957	IO::AIO::min_parallel 8;	4249	IO::AIO::min_parallel 8;
2958
2959	undef $Coro::AIO::WATCHER;
2960	IO::AIO::max_poll_time $TICK * 0.1;	4250	IO::AIO::max_poll_time $TICK * 0.1;
2961	$AIO_POLL_WATCHER = Event->io (	4251	undef $AnyEvent::AIO::WATCHER;
2962	reentrant => 0,
2963	data => WF_AUTOCANCEL,
2964	fd => IO::AIO::poll_fileno,
2965	poll => 'r',
2966	prio => 6,
2967	cb => \&IO::AIO::poll_cb,
2968	);
2969	}	4252	}
2970		4253
2971	my $_log_backtrace;	4254	our $_log_backtrace;
		4255	our $_log_backtrace_last;
2972		4256
2973	sub _log_backtrace {	4257	sub _log_backtrace {
2974	my ($msg, @addr) = @_;	4258	my ($msg, @addr) = @_;
2975		4259
2976	$msg =~ s/\n//;	4260	$msg =~ s/\n$//;
2977		4261
		4262	if ($_log_backtrace_last eq $msg) {
		4263	LOG llevInfo, "[ABT] $msg\n";
		4264	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
2978	# limit the # of concurrent backtraces	4265	# limit the # of concurrent backtraces
2979	if ($_log_backtrace < 2) {	4266	} elsif ($_log_backtrace < 2) {
		4267	$_log_backtrace_last = $msg;
2980	++$_log_backtrace;	4268	++$_log_backtrace;
		4269	my $perl_bt = Carp::longmess $msg;
2981	async {	4270	async {
		4271	$Coro::current->{desc} = "abt $msg";
		4272
2982	my @bt = fork_call {	4273	my @bt = fork_call {
2983	@addr = map { sprintf "%x", $_ } @addr;	4274	@addr = map { sprintf "%x", $_ } @addr;
2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4275	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4276	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2986	or die "addr2line: $!";	4277	or die "addr2line: $!";
…		…
2994	}	4285	}
2995		4286
2996	@funcs	4287	@funcs
2997	};	4288	};
2998		4289
2999	LOG llevInfo, "[ABT] $msg\n";	4290	LOG llevInfo, "[ABT] $perl_bt\n";
		4291	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3000	LOG llevInfo, "[ABT] $_\n" for @bt;	4292	LOG llevInfo, "[ABT] $_\n" for @bt;
3001	--$_log_backtrace;	4293	--$_log_backtrace;
3002	};	4294	};
3003	} else {	4295	} else {
3004	LOG llevInfo, "[ABT] $msg\n";	4296	LOG llevInfo, "[ABT] $msg\n";
3005	LOG llevInfo, "[ABT] [suppressed]\n";	4297	LOG llevInfo, "[ABT] [overload, suppressed]\n";
3006	}	4298	}
3007	}	4299	}
3008		4300
3009	# load additional modules	4301	# load additional modules
3010	use cf::pod;	4302	require "cf/$_.pm" for @EXTRA_MODULES;
		4303	cf::_connect_to_perl_2;
3011		4304
3012	END { cf::emergency_save }	4305	END { cf::emergency_save }
3013		4306
3014	1	4307	1
3015		4308

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