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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.158 by root, Wed Jan 10 19:52:43 2007 UTC vs.
Revision 1.596 by root, Fri Nov 9 20:37:57 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 Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
13	use Coro 3.3 ();	41	use Coro ();
		42	use Coro::State;
		43	use Coro::Handle;
		44	use Coro::EV;
14	use Coro::Event;	45	use Coro::AnyEvent;
15	use Coro::Timer;	46	use Coro::Timer;
16	use Coro::Signal;	47	use Coro::Signal;
17	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
18	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
		53	use Coro::Storable;
		54	use Coro::Util ();
19		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
		58	use BDB ();
20	use Data::Dumper;	59	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	60	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	61	use YAML::XS ();
		62	use IO::AIO ();
25	use Time::HiRes;	63	use Time::HiRes;
		64	use Compress::LZF;
		65	use Digest::MD5 ();
26		66
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	67	AnyEvent::detect;
		68
		69	# configure various modules to our taste
		70	#
		71	$Storable::canonical = 1; # reduce rsync transfers
		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";
		78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		79
		80	# strictly for debugging
		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		82
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		84
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	85	our @ORIG_INC;
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		86
36	our %COMMAND = ();	87	our %COMMAND = ();
37	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
		89
		90	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTACMD = ();
		93	our %EXTICMD = ();
		94	our %EXTIACMD = ();
		95	our %EXT_CORO = (); # coroutines bound to extensions
		96	our %EXT_MAP = (); # pluggable maps
39		97
		98	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	99	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	100	our @REFLECT; # set by XS
		101	our %REFLECT; # set by us
42		102
43	our $TICK = MAX_TIME * 1e-6;	103	our $CONFDIR = confdir;
44	our $TICK_WATCHER;	104
		105	our $DATADIR = datadir;
		106	our $LIBDIR = "$DATADIR/ext";
		107	our $PODDIR = "$DATADIR/pod";
		108	our $MAPDIR = "$DATADIR/" . mapdir;
		109
		110	our $LOCALDIR = localdir;
		111	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		112	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		113	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		114	our $RANDOMDIR = "$LOCALDIR/random";
		115	our $BDBDIR = "$LOCALDIR/db";
		116	our $PIDFILE = "$LOCALDIR/pid";
		117	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		118
		119	#our %RESOURCE; # unused
		120
		121	our $OUTPUT_RATE_MIN = 3000;
		122	our $OUTPUT_RATE_MAX = 1000000;
		123
		124	our $MAX_LINKS = 32; # how many chained exits to follow
		125	our $VERBOSE_IO = 1;
		126
		127	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		128	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	129	our $NEXT_TICK;
		130	our $USE_FSYNC = 1; # use fsync to write maps - default on
		131
		132	our $BDB_DEADLOCK_WATCHER;
		133	our $BDB_CHECKPOINT_WATCHER;
		134	our $BDB_TRICKLE_WATCHER;
		135	our $DB_ENV;
		136
		137	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		138
		139	our %CFG;
		140	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		141
		142	our $UPTIME; $UPTIME ||= time;
		143	our $RUNTIME = 0;
		144	our $SERVER_TICK = 0;
46	our $NOW;	145	our $NOW;
47		146
48	our %CFG;	147	our (%PLAYER, %PLAYER_LOADING); # all users
		148	our (%MAP, %MAP_LOADING ); # all maps
		149	our $LINK_MAP; # the special {link} map, which is always available
49		150
50	our $UPTIME; $UPTIME ||= time;	151	# used to convert map paths into valid unix filenames by replacing / by ∕
51	our $RUNTIME;	152	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
52		153
53	our %PLAYER; # all users	154	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
54	our %MAP; # all maps	155	our $LOADAVG; # same thing, but with alpha-smoothing
55	our $LINK_MAP; # the special {link} map	156	our $JITTER; # average jitter
56	our $RANDOM_MAPS = cf::localdir . "/random";	157	our $TICK_START; # for load detecting purposes
57	our %EXT_CORO; # coroutines bound to extensions
58		158
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	159	our @POST_INIT;
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	160
		161	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		162	our $REALLY_UNLOOP; # never set to true, please :)
		163
		164	our $WAIT_FOR_TICK = new Coro::Signal;
		165	our @WAIT_FOR_TICK_BEGIN;
61		166
62	binmode STDOUT;	167	binmode STDOUT;
63	binmode STDERR;	168	binmode STDERR;
64		169
65	# read virtual server time, if available	170	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	171	unless ($RUNTIME || !-e $RUNTIMEFILE) {
67	open my $fh, "<", cf::localdir . "/runtime"	172	open my $fh, "<", $RUNTIMEFILE
68	or die "unable to read runtime file: $!";	173	or die "unable to read $RUNTIMEFILE file: $!";
69	$RUNTIME = <$fh> + 0.;	174	$RUNTIME = <$fh> + 0.;
70	}	175	}
71		176
72	mkdir cf::localdir;	177	eval "sub TICK() { $TICK } 1" or die;
73	mkdir cf::localdir . "/" . cf::playerdir;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		178
78	# a special map that is always available	179	mkdir $_
79	our $LINK_MAP;	180	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		181
80	our $EMERGENCY_POSITION;	182	our $EMERGENCY_POSITION;
81		183
		184	sub cf::map::normalise;
		185
		186	sub in_main() {
		187	$Coro::current == $Coro::main
		188	}
		189
82	#############################################################################	190	#############################################################################
83		191
		192	%REFLECT = ();
		193	for (@REFLECT) {
		194	my $reflect = JSON::XS::decode_json $_;
		195	$REFLECT{$reflect->{class}} = $reflect;
		196	}
		197
		198	# this is decidedly evil
		199	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		200
		201	#############################################################################
		202
84	=head2 GLOBAL VARIABLES	203	=head2 GLOBAL VARIABLES
85		204
86	=over 4	205	=over 4
87		206
88	=item $cf::UPTIME	207	=item $cf::UPTIME
89		208
90	The timestamp of the server start (so not actually an uptime).	209	The timestamp of the server start (so not actually an "uptime").
		210
		211	=item $cf::SERVER_TICK
		212
		213	An unsigned integer that starts at zero when the server is started and is
		214	incremented on every tick.
		215
		216	=item $cf::NOW
		217
		218	The (real) time of the last (current) server tick - updated before and
		219	after tick processing, so this is useful only as a rough "what time is it
		220	now" estimate.
		221
		222	=item $cf::TICK
		223
		224	The interval between each server tick, in seconds.
91		225
92	=item $cf::RUNTIME	226	=item $cf::RUNTIME
93		227
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	228	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	229	every server tick.
96		230
97	=item $cf::LIBDIR	231	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		232	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		233	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		234
99	The perl library directory, where extensions and cf-specific modules can	235	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	236	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		237	unique-items directory, player file directory, random maps directory and
		238	database environment.
101		239
		240	=item $cf::LOADAVG
		241
		242	The current CPU load on the server (alpha-smoothed), as a value between 0
		243	(none) and 1 (overloaded), indicating how much time is spent on processing
		244	objects per tick. Healthy values are < 0.5.
		245
102	=item $cf::NOW	246	=item $cf::LOAD
103		247
104	The time of the last (current) server tick.	248	The raw value load value from the last tick.
105
106	=item $cf::TICK
107
108	The interval between server ticks, in seconds.
109		249
110	=item %cf::CFG	250	=item %cf::CFG
111		251
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	252	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	253	from wherever your confdir points to.
114		254
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	255	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		256
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	257	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	258	returns directly I<after> the tick processing (and consequently, can only wake one thread
119	processing has been done. Call C<< ->wait >> on them to maximise the	259	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	260
		261	Note that cf::Wait_for_tick will immediately return when the server is not
		262	ticking, making it suitable for small pauses in threads that need to run
		263	when the server is paused. If that is not applicable (i.e. you I<really>
		264	want to wait, use C<$cf::WAIT_FOR_TICK>).
		265
		266	=item $cf::WAIT_FOR_TICK
		267
		268	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		269	variable contains a L<Coro::Signal> that is broadcats after every server
		270	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		271	next server tick.
		272
		273	=cut
		274
		275	sub wait_for_tick();
		276	sub wait_for_tick_begin();
		277
		278	=item @cf::INVOKE_RESULTS
		279
		280	This array contains the results of the last C<invoke ()> call. When
		281	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		282	that call.
		283
		284	=item %cf::REFLECT
		285
		286	Contains, for each (C++) class name, a hash reference with information
		287	about object members (methods, scalars, arrays and flags) and other
		288	metadata, which is useful for introspection.
121		289
122	=back	290	=back
123		291
124	=cut	292	=cut
125		293
126	BEGIN {	294	sub error(@) { LOG llevError, join "", @_ }
127	*CORE::GLOBAL::warn = sub {	295	sub warn (@) { LOG llevWarn , join "", @_ }
		296	sub info (@) { LOG llevInfo , join "", @_ }
		297	sub debug(@) { LOG llevDebug, join "", @_ }
		298	sub trace(@) { LOG llevTrace, join "", @_ }
		299
		300	$Coro::State::WARNHOOK = sub {
128	my $msg = join "", @_;	301	my $msg = join "", @_;
129	utf8::encode $msg;
130		302
131	$msg .= "\n"	303	$msg .= "\n"
132	unless $msg =~ /\n$/;	304	unless $msg =~ /\n$/;
133		305
		306	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		307
134	LOG llevError, $msg;	308	LOG llevWarn, $msg;
135	};	309	};
136	}	310
		311	$Coro::State::DIEHOOK = sub {
		312	return unless $^S eq 0; # "eq", not "=="
		313
		314	error Carp::longmess $_[0];
		315
		316	if (in_main) {#d#
		317	error "DIEHOOK called in main context, Coro bug?\n";#d#
		318	return;#d#
		319	}#d#
		320
		321	# kill coroutine otherwise
		322	Coro::terminate
		323	};
137		324
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	325	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	326	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	327	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	328	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	329	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		330	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	331	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		332
145	# we bless all objects into (empty) derived classes to force a method lookup	333	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	334	# within the Safe compartment.
147	for my $pkg (qw(	335	for my $pkg (qw(
148	cf::global cf::attachable	336	cf::global cf::attachable
149	cf::object cf::object::player	337	cf::object cf::object::player
150	cf::client cf::player	338	cf::client cf::player
151	cf::arch cf::living	339	cf::arch cf::living
		340	cf::map cf::mapspace
152	cf::map cf::party cf::region	341	cf::party cf::region
153	)) {	342	)) {
154	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	343	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	344	}
157		345
158	$Event::DIED = sub {	346	$EV::DIED = sub {
159	warn "error in event callback: @_";	347	warn "error in event callback: $@";
160	};	348	};
161		349
162	my %ext_pkg;	350	#############################################################################
163	my @exts;	351
164	my @hook;	352	sub fork_call(&@);
		353	sub get_slot($;$$);
		354
		355	#############################################################################
165		356
166	=head2 UTILITY FUNCTIONS	357	=head2 UTILITY FUNCTIONS
167		358
168	=over 4	359	=over 4
169		360
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	379	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	380	$d
190	} || "[unable to dump $_[0]: '$@']";	381	} || "[unable to dump $_[0]: '$@']";
191	}	382	}
192		383
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	384	=item $scalar = cf::load_file $path
194		385
		386	Loads the given file from path and returns its contents. Croaks on error
		387	and can block.
		388
		389	=cut
		390
		391	sub load_file($) {
		392	0 <= aio_load $_[0], my $data
		393	or Carp::croak "$_[0]: $!";
		394
		395	$data
		396	}
		397
		398	=item $success = cf::replace_file $path, $data, $sync
		399
		400	Atomically replaces the file at the given $path with new $data, and
		401	optionally $sync the data to disk before replacing the file.
		402
		403	=cut
		404
		405	sub replace_file($$;$) {
		406	my ($path, $data, $sync) = @_;
		407
		408	my $lock = cf::lock_acquire ("replace_file:$path");
		409
		410	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		411	or return;
		412
		413	$data = $data->() if ref $data;
		414
		415	length $data == aio_write $fh, 0, (length $data), $data, 0
		416	or return;
		417
		418	!$sync
		419	or !aio_fsync $fh
		420	or return;
		421
		422	aio_close $fh
		423	and return;
		424
		425	aio_rename "$path~", $path
		426	and return;
		427
		428	if ($sync) {
		429	$path =~ s%/[^/]*$%%;
		430	aio_pathsync $path;
		431	}
		432
		433	1
		434	}
		435
195	=item $ref = cf::from_json $json	436	=item $ref = cf::decode_json $json
196		437
197	Converts a JSON string into the corresponding perl data structure.	438	Converts a JSON string into the corresponding perl data structure.
198		439
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	440	=item $json = cf::encode_json $ref
207		441
208	Converts a perl data structure into its JSON representation.	442	Converts a perl data structure into its JSON representation.
209		443
210	=cut	444	=cut
211		445
212	sub to_json($) {	446	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	447
214	JSON::Syck::Dump $_[0]	448	sub encode_json($) { $json_coder->encode ($_[0]) }
		449	sub decode_json($) { $json_coder->decode ($_[0]) }
		450
		451	=item $ref = cf::decode_storable $scalar
		452
		453	Same as Coro::Storable::thaw, so blocks.
		454
		455	=cut
		456
		457	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		458
		459	=item $ref = cf::decode_yaml $scalar
		460
		461	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		462
		463	=cut
		464
		465	sub decode_yaml($) {
		466	fork_call { YAML::XS::Load $_[0] } @_
		467	}
		468
		469	=item $scalar = cf::unlzf $scalar
		470
		471	Same as Compress::LZF::compress, but takes server ticks into account, so
		472	blocks.
		473
		474	=cut
		475
		476	sub unlzf($) {
		477	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		478	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		479	Compress::LZF::decompress $_[0]
		480	}
		481
		482	=item cf::post_init { BLOCK }
		483
		484	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		485	but I<before> the server starts ticking again.
		486
		487	The codeblock will have a single boolean argument to indicate whether this
		488	is a reload or not.
		489
		490	=cut
		491
		492	sub post_init(&) {
		493	push @POST_INIT, shift;
		494	}
		495
		496	sub _post_init {
		497	trace "running post_init jobs";
		498
		499	# run them in parallel...
		500
		501	my @join;
		502
		503	while () {
		504	push @join, map &Coro::async ($_, 0), @POST_INIT;
		505	@POST_INIT = ();
		506
		507	@join or last;
		508
		509	(pop @join)->join;
		510	}
215	}	511	}
216		512
217	=item cf::lock_wait $string	513	=item cf::lock_wait $string
218		514
219	Wait until the given lock is available. See cf::lock_acquire.	515	Wait until the given lock is available. See cf::lock_acquire.
220		516
221	=item my $lock = cf::lock_acquire $string	517	=item my $lock = cf::lock_acquire $string
222		518
223	Wait until the given lock is available and then acquires it and returns	519	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	520	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	521	for example when the coroutine gets canceled), the lock is automatically
226	returned.	522	returned.
227		523
		524	Locks are *not* recursive, locking from the same coro twice results in a
		525	deadlocked coro.
		526
228	Lock names should begin with a unique identifier (for example, cf::map::find	527	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	528	uses map_find and cf::map::load uses map_load).
230		529
231	=cut	530	=item $locked = cf::lock_active $string
232		531
233	our %LOCK;	532	Return true if the lock is currently active, i.e. somebody has locked it.
		533
		534	=cut
		535
		536	our $LOCKS = new Coro::SemaphoreSet;
234		537
235	sub lock_wait($) {	538	sub lock_wait($) {
236	my ($key) = @_;	539	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	540	}
244		541
245	sub lock_acquire($) {	542	sub lock_acquire($) {
246	my ($key) = @_;	543	$LOCKS->guard ($_[0])
		544	}
247		545
248	# wait, to be sure we are not locked	546	sub lock_active($) {
249	lock_wait $key;	547	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	548	}
258		549
259	sub freeze_mainloop {	550	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	551	tick_inhibit_inc;
261		552
262	my $guard = Coro::guard { $TICK_WATCHER->start };	553	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	554	}
264	$guard	555
		556	=item cf::periodic $interval, $cb
		557
		558	Like EV::periodic, but randomly selects a starting point so that the actions
		559	get spread over time.
		560
		561	=cut
		562
		563	sub periodic($$) {
		564	my ($interval, $cb) = @_;
		565
		566	my $start = rand List::Util::min 180, $interval;
		567
		568	EV::periodic $start, $interval, 0, $cb
		569	}
		570
		571	=item cf::get_slot $time[, $priority[, $name]]
		572
		573	Allocate $time seconds of blocking CPU time at priority C<$priority>
		574	(default: 0): This call blocks and returns only when you have at least
		575	C<$time> seconds of cpu time till the next tick. The slot is only valid
		576	till the next cede.
		577
		578	Background jobs should use a priority les than zero, interactive jobs
		579	should use 100 or more.
		580
		581	The optional C<$name> can be used to identify the job to run. It might be
		582	used for statistical purposes and should identify the same time-class.
		583
		584	Useful for short background jobs.
		585
		586	=cut
		587
		588	our @SLOT_QUEUE;
		589	our $SLOT_QUEUE;
		590	our $SLOT_DECAY = 0.9;
		591
		592	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		593	$SLOT_QUEUE = Coro::async {
		594	$Coro::current->desc ("timeslot manager");
		595
		596	my $signal = new Coro::Signal;
		597	my $busy;
		598
		599	while () {
		600	next_job:
		601
		602	my $avail = cf::till_tick;
		603
		604	for (0 .. $#SLOT_QUEUE) {
		605	if ($SLOT_QUEUE[$_][0] <= $avail) {
		606	$busy = 0;
		607	my $job = splice @SLOT_QUEUE, $_, 1, ();
		608	$job->[2]->send;
		609	Coro::cede;
		610	goto next_job;
		611	} else {
		612	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		613	}
		614	}
		615
		616	if (@SLOT_QUEUE) {
		617	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		618	$WAIT_FOR_TICK->wait;
		619	} else {
		620	$busy = 0;
		621	Coro::schedule;
		622	}
		623	}
		624	};
		625
		626	sub get_slot($;$$) {
		627	return if tick_inhibit || $Coro::current == $Coro::main;
		628
		629	my ($time, $pri, $name) = @_;
		630
		631	$time = clamp $time, 0.01, $TICK * .6;
		632
		633	my $sig = new Coro::Signal;
		634
		635	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		636	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		637	$SLOT_QUEUE->ready;
		638	$sig->wait;
265	}	639	}
266		640
267	=item cf::async { BLOCK }	641	=item cf::async { BLOCK }
268		642
269	Currently the same as Coro::async_pool, meaning you cannot use	643	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		648
275	BEGIN { *async = \&Coro::async_pool }	649	BEGIN { *async = \&Coro::async_pool }
276		650
277	=item cf::sync_job { BLOCK }	651	=item cf::sync_job { BLOCK }
278		652
279	The design of crossfire+ requires that the main coro ($Coro::main) is	653	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	654	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	655	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		656	acceptable.
282		657
283	If it must be done, put the blocking parts into C<sync_job>. This will run	658	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	659	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	660	server will be frozen during this time, so the block should either finish
286	fast or be very important.	661	fast or be very important.
…		…
288	=cut	663	=cut
289		664
290	sub sync_job(&) {	665	sub sync_job(&) {
291	my ($job) = @_;	666	my ($job) = @_;
292		667
293	if ($Coro::current == $Coro::main) {	668	if (in_main) {
		669	my $time = AE::time;
		670
294	# this is the main coro, too bad, we have to block	671	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	672	# till the operation succeeds, freezing the server :/
296		673
297	# TODO: use suspend/resume instead	674	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	675
299	my $freeze_guard = freeze_mainloop;	676	my $freeze_guard = freeze_mainloop;
300		677
301	my $busy = 1;	678	my $busy = 1;
302	my @res;	679	my @res;
303		680
304	(async {	681	(async {
		682	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	683	@res = eval { $job->() };
306	warn $@ if $@;	684	error $@ if $@;
307	undef $busy;	685	undef $busy;
308	})->prio (Coro::PRIO_MAX);	686	})->prio (Coro::PRIO_MAX);
309		687
310	while ($busy) {	688	while ($busy) {
311	Coro::cede or Event::one_event;	689	if (Coro::nready) {
		690	Coro::cede_notself;
		691	} else {
		692	EV::loop EV::LOOP_ONESHOT;
312	}	693	}
		694	}
		695
		696	my $time = AE::time - $time;
		697
		698	$TICK_START += $time; # do not account sync jobs to server load
313		699
314	wantarray ? @res : $res[0]	700	wantarray ? @res : $res[0]
315	} else {	701	} else {
316	# we are in another coroutine, how wonderful, everything just works	702	# we are in another coroutine, how wonderful, everything just works
317		703
…		…
319	}	705	}
320	}	706	}
321		707
322	=item $coro = cf::async_ext { BLOCK }	708	=item $coro = cf::async_ext { BLOCK }
323		709
324	Like async, but this coro is automcatially being canceled when the	710	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	711	extension calling this is being unloaded.
326		712
327	=cut	713	=cut
328		714
329	sub async_ext(&) {	715	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	723	$EXT_CORO{$coro+0} = $coro;
338		724
339	$coro	725	$coro
340	}	726	}
341		727
342	sub write_runtime {	728	=item fork_call { }, @args
343	my $runtime = cf::localdir . "/runtime";
344		729
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	730	Executes the given code block with the given arguments in a seperate
346	or return;	731	process, returning the results. Everything must be serialisable with
		732	Coro::Storable. May, of course, block. Note that the executed sub may
		733	never block itself or use any form of event handling.
347		734
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	735	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		736
352	aio_fsync $fh	737	sub post_fork {
353	and return;	738	reset_signals;
		739	}
354		740
355	close $fh	741	sub fork_call(&@) {
356	or return;	742	my ($cb, @args) = @_;
357		743
358	aio_rename "$runtime~", $runtime	744	# we seemingly have to make a local copy of the whole thing,
359	and return;	745	# otherwise perl prematurely frees the stuff :/
		746	# TODO: investigate and fix (likely this will be rather laborious)
360		747
		748	my @res = Coro::Util::fork_eval {
		749	cf::post_fork;
		750	&$cb
		751	} @args;
		752
		753	wantarray ? @res : $res[-1]
		754	}
		755
		756	sub objinfo {
361	1	757	(
		758	"counter value" => cf::object::object_count,
		759	"objects created" => cf::object::create_count,
		760	"objects destroyed" => cf::object::destroy_count,
		761	"freelist size" => cf::object::free_count,
		762	"allocated objects" => cf::object::objects_size,
		763	"active objects" => cf::object::actives_size,
		764	)
		765	}
		766
		767	=item $coin = coin_from_name $name
		768
		769	=cut
		770
		771	our %coin_alias = (
		772	"silver" => "silvercoin",
		773	"silvercoin" => "silvercoin",
		774	"silvercoins" => "silvercoin",
		775	"gold" => "goldcoin",
		776	"goldcoin" => "goldcoin",
		777	"goldcoins" => "goldcoin",
		778	"platinum" => "platinacoin",
		779	"platinumcoin" => "platinacoin",
		780	"platinumcoins" => "platinacoin",
		781	"platina" => "platinacoin",
		782	"platinacoin" => "platinacoin",
		783	"platinacoins" => "platinacoin",
		784	"royalty" => "royalty",
		785	"royalties" => "royalty",
		786	);
		787
		788	sub coin_from_name($) {
		789	$coin_alias{$_[0]}
		790	? cf::arch::find $coin_alias{$_[0]}
		791	: undef
		792	}
		793
		794	=item $value = cf::db_get $family => $key
		795
		796	Returns a single value from the environment database.
		797
		798	=item cf::db_put $family => $key => $value
		799
		800	Stores the given C<$value> in the family. It can currently store binary
		801	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		802
		803	=item $db = cf::db_table "name"
		804
		805	Create and/or open a new database table. The string must not be "db" and must be unique
		806	within each server.
		807
		808	=cut
		809
		810	sub db_table($) {
		811	cf::error "db_get called from main context"
		812	if $Coro::current == $Coro::main;
		813
		814	my ($name) = @_;
		815	my $db = BDB::db_create $DB_ENV;
		816
		817	eval {
		818	$db->set_flags (BDB::CHKSUM);
		819
		820	utf8::encode $name;
		821	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		822	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		823	cf::cleanup "db_open(db): $!" if $!;
		824	};
		825	cf::cleanup "db_open(db): $@" if $@;
		826
		827	$db
		828	}
		829
		830	our $DB;
		831
		832	sub db_init {
		833	$DB ||= db_table "db";
		834	}
		835
		836	sub db_get($$) {
		837	my $key = "$_[0]/$_[1]";
		838
		839	cf::error "db_get called from main context"
		840	if $Coro::current == $Coro::main;
		841
		842	BDB::db_get $DB, undef, $key, my $data;
		843
		844	$! ? ()
		845	: $data
		846	}
		847
		848	sub db_put($$$) {
		849	BDB::dbreq_pri 4;
		850	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		851	}
		852
		853	=item cf::cache $id => [$paths...], $processversion => $process
		854
		855	Generic caching function that returns the value of the resource $id,
		856	caching and regenerating as required.
		857
		858	This function can block.
		859
		860	=cut
		861
		862	sub cache {
		863	my ($id, $src, $processversion, $process) = @_;
		864
		865	my $meta =
		866	join "\x00",
		867	$processversion,
		868	map {
		869	aio_stat $_
		870	and Carp::croak "$_: $!";
		871
		872	($_, (stat _)[7,9])
		873	} @$src;
		874
		875	my $dbmeta = db_get cache => "$id/meta";
		876	if ($dbmeta ne $meta) {
		877	# changed, we may need to process
		878
		879	my @data;
		880	my $md5;
		881
		882	for (0 .. $#$src) {
		883	$data[$_] = load_file $src->[$_];
		884	}
		885
		886	# if processing is expensive, check
		887	# checksum first
		888	if (1) {
		889	$md5 =
		890	join "\x00",
		891	$processversion,
		892	map {
		893	cf::cede_to_tick;
		894	($src->[$_], Digest::MD5::md5_hex $data[$_])
		895	} 0.. $#$src;
		896
		897
		898	my $dbmd5 = db_get cache => "$id/md5";
		899	if ($dbmd5 eq $md5) {
		900	db_put cache => "$id/meta", $meta;
		901
		902	return db_get cache => "$id/data";
		903	}
		904	}
		905
		906	my $t1 = Time::HiRes::time;
		907	my $data = $process->(\@data);
		908	my $t2 = Time::HiRes::time;
		909
		910	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		911
		912	db_put cache => "$id/data", $data;
		913	db_put cache => "$id/md5" , $md5;
		914	db_put cache => "$id/meta", $meta;
		915
		916	return $data;
		917	}
		918
		919	db_get cache => "$id/data"
		920	}
		921
		922	=item cf::datalog type => key => value, ...
		923
		924	Log a datalog packet of the given type with the given key-value pairs.
		925
		926	=cut
		927
		928	sub datalog($@) {
		929	my ($type, %kv) = @_;
		930	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	931	}
363		932
364	=back	933	=back
365		934
366	=cut	935	=cut
367		936
368	#############################################################################	937	#############################################################################
369		938
370	package cf::path;
371
372	use overload
373	'""' => \&as_string;
374
375	# used to convert map paths into valid unix filenames by repalcing / by ∕
376	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
377
378	sub new {
379	my ($class, $path, $base) = @_;
380
381	$path = $path->as_string if ref $path;
382
383	my $self = bless { }, $class;
384
385	# {... are special paths that are not touched
386	# ?xxx/... are special absolute paths
387	# ?random/... random maps
388	# /! non-realised random map exit
389	# /... normal maps
390	# ~/... per-player maps without a specific player (DO NOT USE)
391	# ~user/... per-player map of a specific user
392
393	$path =~ s/$PATH_SEP/\//go;
394
395	if ($path =~ /^{/) {
396	# fine as it is
397	} elsif ($path =~ s{^\?random/}{}) {
398	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
399	$self->{random} = cf::from_json $data;
400	} else {
401	if ($path =~ s{^~([^/]+)?}{}) {
402	$self->{user_rel} = 1;
403
404	if (defined $1) {
405	$self->{user} = $1;
406	} elsif ($base =~ m{^~([^/]+)/}) {
407	$self->{user} = $1;
408	} else {
409	warn "cannot resolve user-relative path without user <$path,$base>\n";
410	}
411	} elsif ($path =~ /^\//) {
412	# already absolute
413	} else {
414	$base =~ s{[^/]+/?$}{};
415	return $class->new ("$base/$path");
416	}
417
418	for ($path) {
419	redo if s{/\.?/}{/};
420	redo if s{/[^/]+/\.\./}{/};
421	}
422	}
423
424	$self->{path} = $path;
425
426	$self
427	}
428
429	# the name / primary key / in-game path
430	sub as_string {
431	my ($self) = @_;
432
433	$self->{user_rel} ? "~$self->{user}$self->{path}"
434	: $self->{random} ? "?random/$self->{path}"
435	: $self->{path}
436	}
437
438	# the displayed name, this is a one way mapping
439	sub visible_name {
440	my ($self) = @_;
441
442	# if (my $rmp = $self->{random}) {
443	# # todo: be more intelligent about this
444	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
445	# } else {
446	$self->as_string
447	# }
448	}
449
450	# escape the /'s in the path
451	sub _escaped_path {
452	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
453	$path
454	}
455
456	# the original (read-only) location
457	sub load_path {
458	my ($self) = @_;
459
460	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
461	}
462
463	# the temporary/swap location
464	sub save_path {
465	my ($self) = @_;
466
467	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
468	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
469	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
470	}
471
472	# the unique path, might be eq to save_path
473	sub uniq_path {
474	my ($self) = @_;
475
476	$self->{user_rel} || $self->{random}
477	? undef
478	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
479	}
480
481	# return random map parameters, or undef
482	sub random_map_params {
483	my ($self) = @_;
484
485	$self->{random}
486	}
487
488	# this is somewhat ugly, but style maps do need special treatment
489	sub is_style_map {
490	$_[0]{path} =~ m{^/styles/}
491	}
492
493	package cf;
494
495	#############################################################################
496
497	=head2 ATTACHABLE OBJECTS	939	=head2 ATTACHABLE OBJECTS
498		940
499	Many objects in crossfire are so-called attachable objects. That means you can	941	Many objects in deliantra are so-called attachable objects. That means you can
500	attach callbacks/event handlers (a collection of which is called an "attachment")	942	attach callbacks/event handlers (a collection of which is called an "attachment")
501	to it. All such attachable objects support the following methods.	943	to it. All such attachable objects support the following methods.
502		944
503	In the following description, CLASS can be any of C<global>, C<object>	945	In the following description, CLASS can be any of C<global>, C<object>
504	C<player>, C<client> or C<map> (i.e. the attachable objects in	946	C<player>, C<client> or C<map> (i.e. the attachable objects in
505	crossfire+).	947	Deliantra).
506		948
507	=over 4	949	=over 4
508		950
509	=item $attachable->attach ($attachment, key => $value...)	951	=item $attachable->attach ($attachment, key => $value...)
510		952
…		…
554	=item cf::CLASS::attachment $name, ...	996	=item cf::CLASS::attachment $name, ...
555		997
556	Register an attachment by C<$name> through which attachable objects of the	998	Register an attachment by C<$name> through which attachable objects of the
557	given CLASS can refer to this attachment.	999	given CLASS can refer to this attachment.
558		1000
559	Some classes such as crossfire maps and objects can specify attachments	1001	Some classes such as deliantra maps and objects can specify attachments
560	that are attached at load/instantiate time, thus the need for a name.	1002	that are attached at load/instantiate time, thus the need for a name.
561		1003
562	These calls expect any number of the following handler/hook descriptions:	1004	These calls expect any number of the following handler/hook descriptions:
563		1005
564	=over 4	1006	=over 4
…		…
624	our @CB_TYPE = (); # registry for type (cf-object class) based events	1066	our @CB_TYPE = (); # registry for type (cf-object class) based events
625	our @CB_MAP = ();	1067	our @CB_MAP = ();
626		1068
627	my %attachment;	1069	my %attachment;
628		1070
		1071	sub cf::attachable::thawer_merge {
		1072	# simply override everything except _meta
		1073	local $_[0]{_meta};
		1074	%{$_[0]} = %{$_[1]};
		1075	}
		1076
629	sub _attach_cb($$$$) {	1077	sub _attach_cb($$$$) {
630	my ($registry, $event, $prio, $cb) = @_;	1078	my ($registry, $event, $prio, $cb) = @_;
631		1079
632	use sort 'stable';	1080	use sort 'stable';
633		1081
…		…
667	$registry = $CB_TYPE[$object_type] ||= [];	1115	$registry = $CB_TYPE[$object_type] ||= [];
668		1116
669	} elsif ($type eq "subtype") {	1117	} elsif ($type eq "subtype") {
670	defined $object_type or Carp::croak "subtype specified without type";	1118	defined $object_type or Carp::croak "subtype specified without type";
671	my $object_subtype = shift @arg;	1119	my $object_subtype = shift @arg;
672	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1120	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
673		1121
674	} elsif ($type eq "package") {	1122	} elsif ($type eq "package") {
675	my $pkg = shift @arg;	1123	my $pkg = shift @arg;
676		1124
677	while (my ($name, $id) = each %cb_id) {	1125	while (my ($name, $id) = each %cb_id) {
…		…
682		1130
683	} elsif (exists $cb_id{$type}) {	1131	} elsif (exists $cb_id{$type}) {
684	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1132	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
685		1133
686	} elsif (ref $type) {	1134	} elsif (ref $type) {
687	warn "attaching objects not supported, ignoring.\n";	1135	error "attaching objects not supported, ignoring.\n";
688		1136
689	} else {	1137	} else {
690	shift @arg;	1138	shift @arg;
691	warn "attach argument '$type' not supported, ignoring.\n";	1139	error "attach argument '$type' not supported, ignoring.\n";
692	}	1140	}
693	}	1141	}
694	}	1142	}
695		1143
696	sub _object_attach {	1144	sub _object_attach {
…		…
706	_attach $registry, $klass, @attach;	1154	_attach $registry, $klass, @attach;
707	}	1155	}
708		1156
709	$obj->{$name} = \%arg;	1157	$obj->{$name} = \%arg;
710	} else {	1158	} else {
711	warn "object uses attachment '$name' that is not available, postponing.\n";	1159	info "object uses attachment '$name' which is not available, postponing.\n";
712	}	1160	}
713		1161
714	$obj->{_attachment}{$name} = undef;	1162	$obj->{_attachment}{$name} = undef;
715	}	1163	}
716		1164
…		…
718	if (ref $_[0]) {	1166	if (ref $_[0]) {
719	_object_attach @_;	1167	_object_attach @_;
720	} else {	1168	} else {
721	_attach shift->_attach_registry, @_;	1169	_attach shift->_attach_registry, @_;
722	}	1170	}
		1171	_recalc_want;
723	};	1172	};
724		1173
725	# all those should be optimised	1174	# all those should be optimised
726	sub cf::attachable::detach {	1175	sub cf::attachable::detach {
727	my ($obj, $name) = @_;	1176	my ($obj, $name) = @_;
…		…
730	delete $obj->{_attachment}{$name};	1179	delete $obj->{_attachment}{$name};
731	reattach ($obj);	1180	reattach ($obj);
732	} else {	1181	} else {
733	Carp::croak "cannot, currently, detach class attachments";	1182	Carp::croak "cannot, currently, detach class attachments";
734	}	1183	}
		1184	_recalc_want;
735	};	1185	};
736		1186
737	sub cf::attachable::attached {	1187	sub cf::attachable::attached {
738	my ($obj, $name) = @_;	1188	my ($obj, $name) = @_;
739		1189
…		…
754	";	1204	";
755	die if $@;	1205	die if $@;
756	}	1206	}
757		1207
758	our $override;	1208	our $override;
759	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1209	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
760		1210
761	sub override {	1211	sub override {
762	$override = 1;	1212	$override = 1;
763	@invoke_results = ();	1213	@INVOKE_RESULTS = (@_);
764	}	1214	}
765		1215
766	sub do_invoke {	1216	sub do_invoke {
767	my $event = shift;	1217	my $event = shift;
768	my $callbacks = shift;	1218	my $callbacks = shift;
769		1219
770	@invoke_results = ();	1220	@INVOKE_RESULTS = ();
771		1221
772	local $override;	1222	local $override;
773		1223
774	for (@$callbacks) {	1224	for (@$callbacks) {
775	eval { &{$_->[1]} };	1225	eval { &{$_->[1]} };
776		1226
777	if ($@) {	1227	if ($@) {
778	warn "$@";
779	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1228	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
780	override;	1229	override;
781	}	1230	}
782		1231
783	return 1 if $override;	1232	return 1 if $override;
784	}	1233	}
785		1234
786	0	1235	0
787	}	1236	}
788		1237
789	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
790		1239
791	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1240	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
792		1241
793	Generate an object-specific event with the given arguments.	1242	Generate an object-specific event with the given arguments.
794		1243
795	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1244	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
796	removed in future versions), and there is no public API to access override	1245	removed in future versions), and there is no public API to access override
797	results (if you must, access C<@cf::invoke_results> directly).	1246	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
798		1247
799	=back	1248	=back
800		1249
801	=cut	1250	=cut
802		1251
803	#############################################################################	1252	#############################################################################
804	# object support	1253	# object support
		1254
		1255	sub _object_equal($$);
		1256	sub _object_equal($$) {
		1257	my ($a, $b) = @_;
		1258
		1259	return 0 unless (ref $a) eq (ref $b);
		1260
		1261	if ("HASH" eq ref $a) {
		1262	my @ka = keys %$a;
		1263	my @kb = keys %$b;
		1264
		1265	return 0 if @ka != @kb;
		1266
		1267	for (0 .. $#ka) {
		1268	return 0 unless $ka[$_] eq $kb[$_];
		1269	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1270	}
		1271
		1272	} elsif ("ARRAY" eq ref $a) {
		1273
		1274	return 0 if @$a != @$b;
		1275
		1276	for (0 .. $#$a) {
		1277	return 0 unless _object_equal $a->[$_], $b->[$_];
		1278	}
		1279
		1280	} elsif ($a ne $b) {
		1281	return 0;
		1282	}
		1283
		1284	1
		1285	}
		1286
		1287	our $SLOW_MERGES;#d#
		1288	sub _can_merge {
		1289	my ($ob1, $ob2) = @_;
		1290
		1291	++$SLOW_MERGES;#d#
		1292
		1293	# we do the slow way here
		1294	return _object_equal $ob1, $ob2
		1295	}
805		1296
806	sub reattach {	1297	sub reattach {
807	# basically do the same as instantiate, without calling instantiate	1298	# basically do the same as instantiate, without calling instantiate
808	my ($obj) = @_;	1299	my ($obj) = @_;
		1300
		1301	# no longer needed after getting rid of delete_package?
		1302	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
809		1303
810	my $registry = $obj->registry;	1304	my $registry = $obj->registry;
811		1305
812	@$registry = ();	1306	@$registry = ();
813		1307
…		…
818	for (@$attach) {	1312	for (@$attach) {
819	my ($klass, @attach) = @$_;	1313	my ($klass, @attach) = @$_;
820	_attach $registry, $klass, @attach;	1314	_attach $registry, $klass, @attach;
821	}	1315	}
822	} else {	1316	} else {
823	warn "object uses attachment '$name' that is not available, postponing.\n";	1317	info "object uses attachment '$name' that is not available, postponing.\n";
824	}	1318	}
825	}	1319	}
826	}	1320	}
827		1321
828	cf::attachable->attach (	1322	cf::attachable->attach (
829	prio => -1000000,	1323	prio => -1000000,
830	on_instantiate => sub {	1324	on_instantiate => sub {
831	my ($obj, $data) = @_;	1325	my ($obj, $data) = @_;
832		1326
833	$data = from_json $data;	1327	$data = decode_json $data;
834		1328
835	for (@$data) {	1329	for (@$data) {
836	my ($name, $args) = @$_;	1330	my ($name, $args) = @$_;
837		1331
838	$obj->attach ($name, %{$args || {} });	1332	$obj->attach ($name, %{$args || {} });
…		…
854	sub object_freezer_save {	1348	sub object_freezer_save {
855	my ($filename, $rdata, $objs) = @_;	1349	my ($filename, $rdata, $objs) = @_;
856		1350
857	sync_job {	1351	sync_job {
858	if (length $$rdata) {	1352	if (length $$rdata) {
		1353	utf8::decode (my $decname = $filename);
859	warn sprintf "saving %s (%d,%d)\n",	1354	trace sprintf "saving %s (%d,%d)\n",
860	$filename, length $$rdata, scalar @$objs;	1355	$decname, length $$rdata, scalar @$objs
		1356	if $VERBOSE_IO;
861		1357
862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1358	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
863	chmod SAVE_MODE, $fh;	1359	aio_chmod $fh, SAVE_MODE;
864	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1360	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1361	if ($cf::USE_FSYNC) {
		1362	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
865	aio_fsync $fh;	1363	aio_fsync $fh;
		1364	}
866	close $fh;	1365	aio_close $fh;
867		1366
868	if (@$objs) {	1367	if (@$objs) {
869	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1368	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
870	chmod SAVE_MODE, $fh;	1369	aio_chmod $fh, SAVE_MODE;
871	my $data = Storable::nfreeze { version => 1, objs => $objs };	1370	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
872	aio_write $fh, 0, (length $data), $data, 0;	1371	aio_write $fh, 0, (length $data), $data, 0;
		1372	if ($cf::USE_FSYNC) {
		1373	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
873	aio_fsync $fh;	1374	aio_fsync $fh;
		1375	}
874	close $fh;	1376	aio_close $fh;
875	aio_rename "$filename.pst~", "$filename.pst";	1377	aio_rename "$filename.pst~", "$filename.pst";
876	}	1378	}
877	} else {	1379	} else {
878	aio_unlink "$filename.pst";	1380	aio_unlink "$filename.pst";
879	}	1381	}
880		1382
881	aio_rename "$filename~", $filename;	1383	aio_rename "$filename~", $filename;
		1384
		1385	$filename =~ s%/[^/]+$%%;
		1386	aio_pathsync $filename if $cf::USE_FSYNC;
882	} else {	1387	} else {
883	warn "FATAL: $filename~: $!\n";	1388	error "unable to save objects: $filename~: $!\n";
884	}	1389	}
885	} else {	1390	} else {
886	aio_unlink $filename;	1391	aio_unlink $filename;
887	aio_unlink "$filename.pst";	1392	aio_unlink "$filename.pst";
888	}	1393	}
889	}	1394	};
890	}	1395	}
891		1396
892	sub object_freezer_as_string {	1397	sub object_freezer_as_string {
893	my ($rdata, $objs) = @_;	1398	my ($rdata, $objs) = @_;
894		1399
…		…
906	or return;	1411	or return;
907		1412
908	unless (aio_stat "$filename.pst") {	1413	unless (aio_stat "$filename.pst") {
909	(aio_load "$filename.pst", $av) >= 0	1414	(aio_load "$filename.pst", $av) >= 0
910	or return;	1415	or return;
		1416
911	$av = eval { (Storable::thaw $av)->{objs} };	1417	my $st = eval { Coro::Storable::thaw $av };
		1418	$av = $st->{objs};
912	}	1419	}
913		1420
		1421	utf8::decode (my $decname = $filename);
914	warn sprintf "loading %s (%d)\n",	1422	trace sprintf "loading %s (%d,%d)\n",
915	$filename, length $data, scalar @{$av || []};#d#	1423	$decname, length $data, scalar @{$av || []}
		1424	if $VERBOSE_IO;
		1425
916	return ($data, $av);	1426	($data, $av)
917	}	1427	}
		1428
		1429	=head2 COMMAND CALLBACKS
		1430
		1431	=over 4
		1432
		1433	=cut
918		1434
919	#############################################################################	1435	#############################################################################
920	# command handling &c	1436	# command handling &c
921		1437
922	=item cf::register_command $name => \&callback($ob,$args);	1438	=item cf::register_command $name => \&callback($ob,$args)
923		1439
924	Register a callback for execution when the client sends the user command	1440	Register a callback for execution when the client sends the user command
925	$name.	1441	$name.
926		1442
927	=cut	1443	=cut
…		…
933	#warn "registering command '$name/$time' to '$caller'";	1449	#warn "registering command '$name/$time' to '$caller'";
934		1450
935	push @{ $COMMAND{$name} }, [$caller, $cb];	1451	push @{ $COMMAND{$name} }, [$caller, $cb];
936	}	1452	}
937		1453
938	=item cf::register_extcmd $name => \&callback($pl,$packet);	1454	=item cf::register_extcmd $name => \&callback($pl,@args)
939		1455
940	Register a callbackf ro execution when the client sends an extcmd packet.	1456	Register a callback for execution when the client sends an (synchronous)
		1457	extcmd packet. Ext commands will be processed in the order they are
		1458	received by the server, like other user commands. The first argument is
		1459	the logged-in player. Ext commands can only be processed after a player
		1460	has logged in successfully.
941		1461
942	If the callback returns something, it is sent back as if reply was being	1462	The values will be sent back to the client.
943	called.
944		1463
945	=cut	1464	=item cf::register_async_extcmd $name => \&callback($pl,$reply->(...),@args)
946		1465
		1466	Same as C<cf::register_extcmd>, but instead of returning values, the
		1467	callback needs to clal the C<$reply> function.
		1468
		1469	=item cf::register_exticmd $name => \&callback($ns,@args)
		1470
		1471	Register a callback for execution when the client sends an (asynchronous)
		1472	exticmd packet. Exti commands are processed by the server as soon as they
		1473	are received, i.e. out of order w.r.t. other commands. The first argument
		1474	is a client socket. Exti commands can be received anytime, even before
		1475	log-in.
		1476
		1477	The values will be sent back to the client.
		1478
		1479	=item cf::register_async_exticmd $name => \&callback($ns,$reply->(...),@args)
		1480
		1481	Same as C<cf::register_extcmd>, but instead of returning values, the
		1482	callback needs to clal the C<$reply> function.
		1483
		1484	=cut
		1485
947	sub register_extcmd {	1486	sub register_extcmd($$) {
948	my ($name, $cb) = @_;	1487	my ($name, $cb) = @_;
949		1488
950	my $caller = caller;
951	#warn "registering extcmd '$name' to '$caller'";
952
953	$EXTCMD{$name} = [$cb, $caller];	1489	$EXTCMD{$name} = $cb;
954	}	1490	}
		1491
		1492	sub register_async_extcmd($$) {
		1493	my ($name, $cb) = @_;
		1494
		1495	$EXTACMD{$name} = $cb;
		1496	}
		1497
		1498	sub register_exticmd($$) {
		1499	my ($name, $cb) = @_;
		1500
		1501	$EXTICMD{$name} = $cb;
		1502	}
		1503
		1504	sub register_async_exticmd($$) {
		1505	my ($name, $cb) = @_;
		1506
		1507	$EXTIACMD{$name} = $cb;
		1508	}
		1509
		1510	use File::Glob ();
955		1511
956	cf::player->attach (	1512	cf::player->attach (
957	on_command => sub {	1513	on_unknown_command => sub {
958	my ($pl, $name, $params) = @_;	1514	my ($pl, $name, $params) = @_;
959		1515
960	my $cb = $COMMAND{$name}	1516	my $cb = $COMMAND{$name}
961	or return;	1517	or return;
962		1518
…		…
967	cf::override;	1523	cf::override;
968	},	1524	},
969	on_extcmd => sub {	1525	on_extcmd => sub {
970	my ($pl, $buf) = @_;	1526	my ($pl, $buf) = @_;
971		1527
972	my $msg = eval { from_json $buf };	1528	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
973		1529
974	if (ref $msg) {	1530	if (ref $msg) {
		1531	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1532
975	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1533	if (my $cb = $EXTACMD{$type}) {
976	if (my %reply = $cb->[0]->($pl, $msg)) {	1534	$cb->(
977	$pl->ext_reply ($msg->{msgid}, %reply);	1535	$pl,
		1536	sub {
		1537	$pl->ext_msg ("reply-$reply", @_)
		1538	if $reply;
		1539	},
		1540	@payload
		1541	);
		1542	} else {
		1543	my @reply;
		1544
		1545	if (my $cb = $EXTCMD{$type}) {
		1546	@reply = $cb->($pl, @payload);
978	}	1547	}
		1548
		1549	$pl->ext_msg ("reply-$reply", @reply)
		1550	if $reply;
979	}	1551	}
		1552
980	} else {	1553	} else {
981	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1554	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
982	}	1555	}
983		1556
984	cf::override;	1557	cf::override;
985	},	1558	},
986	);	1559	);
987		1560
988	sub register {	1561	# "readahead" all extensions
989	my ($base, $pkg) = @_;
990
991	#TODO
992	}
993
994	sub load_extension {	1562	sub cache_extensions {
995	my ($path) = @_;	1563	my $grp = IO::AIO::aio_group;
996		1564
997	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1565	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
998	my $base = $1;	1566	for (grep /\.ext$/, @{$_[0]}) {
999	my $pkg = $1;	1567	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1000	$pkg =~ s/[^[:word:]]/_/g;
1001	$pkg = "ext::$pkg";
1002
1003	warn "loading '$path' into '$pkg'\n";
1004
1005	open my $fh, "<:utf8", $path
1006	or die "$path: $!";
1007
1008	my $source =
1009	"package $pkg; use strict; use utf8;\n"
1010	. "#line 1 \"$path\"\n{\n"
1011	. (do { local $/; <$fh> })
1012	. "\n};\n1";
1013
1014	eval $source
1015	or die $@ ? "$path: $@\n"
1016	: "extension disabled.\n";
1017
1018	push @exts, $pkg;
1019	$ext_pkg{$base} = $pkg;
1020
1021	# no strict 'refs';
1022	# @{"$pkg\::ISA"} = ext::;
1023
1024	register $base, $pkg;
1025	}
1026
1027	sub unload_extension {
1028	my ($pkg) = @_;
1029
1030	warn "removing extension $pkg\n";
1031
1032	# remove hooks
1033	#TODO
1034	# for my $idx (0 .. $#PLUGIN_EVENT) {
1035	# delete $hook[$idx]{$pkg};
1036	# }
1037
1038	# remove commands
1039	for my $name (keys %COMMAND) {
1040	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1041
1042	if (@cb) {
1043	$COMMAND{$name} = \@cb;
1044	} else {
1045	delete $COMMAND{$name};
1046	}	1568	}
1047	}	1569	};
1048		1570
1049	# remove extcmds	1571	$grp
1050	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1572	}
1051	delete $EXTCMD{$name};
1052	}
1053		1573
1054	if (my $cb = $pkg->can ("unload")) {	1574	sub _ext_cfg_reg($$$$) {
1055	eval {	1575	my ($rvar, $varname, $cfgname, $default) = @_;
1056	$cb->($pkg);
1057	1
1058	} or warn "$pkg unloaded, but with errors: $@";
1059	}
1060		1576
1061	Symbol::delete_package $pkg;	1577	$cfgname = lc $varname
		1578	unless length $cfgname;
		1579
		1580	$EXT_CFG{$cfgname} = [$rvar, $default];
		1581
		1582	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1062	}	1583	}
1063		1584
1064	sub load_extensions {	1585	sub load_extensions {
		1586	info "loading extensions...";
		1587
		1588	%EXT_CFG = ();
		1589
		1590	cf::sync_job {
		1591	my %todo;
		1592
1065	for my $ext (<$LIBDIR/*.ext>) {	1593	for my $path (<$LIBDIR/*.ext>) {
1066	next unless -r $ext;	1594	next unless -r $path;
1067	eval {	1595
1068	load_extension $ext;	1596	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1597	my $base = $1;
		1598	my $pkg = $1;
		1599	$pkg =~ s/[^[:word:]]/_/g;
		1600	$pkg = "ext::$pkg";
		1601
		1602	open my $fh, "<:utf8", $path
		1603	or die "$path: $!";
		1604
		1605	my $source = do { local $/; <$fh> };
		1606
		1607	my %ext = (
		1608	path => $path,
		1609	base => $base,
		1610	pkg => $pkg,
		1611	);
		1612
		1613	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1614	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1615
		1616	$ext{source} =
		1617	"package $pkg; use common::sense;\n"
		1618	. "#line 1 \"$path\"\n{\n"
		1619	. $source
		1620	. "\n};\n1";
		1621
		1622	$todo{$base} = \%ext;
		1623	}
		1624
		1625	my $pass = 0;
		1626	my %done;
		1627	while (%todo) {
		1628	my $progress;
		1629
		1630	++$pass;
		1631
		1632	ext:
		1633	while (my ($k, $v) = each %todo) {
		1634	for (split /,\s*/, $v->{meta}{depends}) {
		1635	next ext
		1636	unless exists $done{$_};
		1637	}
		1638
		1639	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1640
		1641	my $source = $v->{source};
		1642
		1643	# support "CONF varname :confname = default" pseudo-statements
		1644	$source =~ s{
		1645	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1646	}{
		1647	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1648	}gmxe;
		1649
		1650	my $active = eval $source;
		1651
		1652	if (length $@) {
		1653	error "$v->{path}: $@\n";
		1654
		1655	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1656	if exists $v->{meta}{mandatory};
		1657
		1658	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1659	delete $todo{$k};
		1660	} else {
		1661	$done{$k} = delete $todo{$k};
		1662	push @EXTS, $v->{pkg};
		1663	$progress = 1;
		1664
		1665	info "$v->{base}: extension inactive.\n"
		1666	unless $active;
		1667	}
1069	1	1668	}
1070	} or warn "$ext not loaded: $@";	1669
		1670	unless ($progress) {
		1671	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1672
		1673	while (my ($k, $v) = each %todo) {
		1674	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1675	if exists $v->{meta}{mandatory};
		1676	}
		1677
		1678	last;
		1679	}
		1680	}
1071	}	1681	};
1072	}	1682	}
1073		1683
1074	#############################################################################	1684	#############################################################################
1075	# load/save/clean perl data associated with a map
1076		1685
1077	*cf::mapsupport::on_clean = sub {	1686	=back
1078	my ($map) = @_;
1079
1080	my $path = $map->tmpname;
1081	defined $path or return;
1082
1083	unlink "$path.pst";
1084	};
1085
1086	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1087
1088	#############################################################################
1089		1687
1090	=head2 CORE EXTENSIONS	1688	=head2 CORE EXTENSIONS
1091		1689
1092	Functions and methods that extend core crossfire objects.	1690	Functions and methods that extend core deliantra objects.
1093		1691
1094	=cut	1692	=cut
1095		1693
1096	package cf::player;	1694	package cf::player;
1097		1695
…		…
1099		1697
1100	=head3 cf::player	1698	=head3 cf::player
1101		1699
1102	=over 4	1700	=over 4
1103		1701
		1702	=item cf::player::num_playing
		1703
		1704	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1705
		1706	=cut
		1707
		1708	sub num_playing {
		1709	scalar grep
		1710	$_->ob->map
		1711	&& !$_->hidden
		1712	&& !$_->ob->flag (cf::FLAG_WIZ),
		1713	cf::player::list
		1714	}
		1715
1104	=item cf::player::find $login	1716	=item cf::player::find $login
1105		1717
1106	Returns the given player object, loading it if necessary (might block).	1718	Returns the given player object, loading it if necessary (might block).
1107		1719
1108	=cut	1720	=cut
1109		1721
1110	sub playerdir($) {	1722	sub playerdir($) {
1111	cf::localdir	1723	"$PLAYERDIR/"
1112	. "/"
1113	. cf::playerdir
1114	. "/"
1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1724	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1116	}	1725	}
1117		1726
1118	sub path($) {	1727	sub path($) {
1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1728	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1120		1729
1121	(playerdir $login) . "/$login.pl"	1730	(playerdir $login) . "/playerdata"
1122	}	1731	}
1123		1732
1124	sub find_active($) {	1733	sub find_active($) {
1125	$cf::PLAYER{$_[0]}	1734	$cf::PLAYER{$_[0]}
1126	and $cf::PLAYER{$_[0]}->active	1735	and $cf::PLAYER{$_[0]}->active
…		…
1129		1738
1130	sub exists($) {	1739	sub exists($) {
1131	my ($login) = @_;	1740	my ($login) = @_;
1132		1741
1133	$cf::PLAYER{$login}	1742	$cf::PLAYER{$login}
1134	or cf::sync_job { !aio_stat $login }	1743	or !aio_stat path $login
1135	}	1744	}
1136		1745
1137	sub find($) {	1746	sub find($) {
1138	return $cf::PLAYER{$_[0]} || do {	1747	return $cf::PLAYER{$_[0]} || do {
1139	my $login = $_[0];	1748	my $login = $_[0];
1140		1749
1141	my $guard = cf::lock_acquire "user_find:$login";	1750	my $guard = cf::lock_acquire "user_find:$login";
1142		1751
1143	$cf::PLAYER{$_[0]} || do {	1752	$cf::PLAYER{$_[0]} || do {
1144	my $pl = load_pl path $login	1753	# rename old playerfiles to new ones
		1754	#TODO: remove when no longer required
		1755	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1756	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1757	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1758	aio_unlink +(playerdir $login) . "/$login.pl";
		1759
		1760	my $f = new_from_file cf::object::thawer path $login
1145	or return;	1761	or return;
		1762
		1763	my $pl = cf::player::load_pl $f
		1764	or return;
		1765
		1766	local $cf::PLAYER_LOADING{$login} = $pl;
		1767	$f->resolve_delayed_derefs;
1146	$cf::PLAYER{$login} = $pl	1768	$cf::PLAYER{$login} = $pl
1147	}	1769	}
1148	}	1770	}
1149	}	1771	}
		1772
		1773	cf::player->attach (
		1774	on_load => sub {
		1775	my ($pl, $path) = @_;
		1776
		1777	# restore slots saved in save, below
		1778	my $slots = delete $pl->{_slots};
		1779
		1780	$pl->ob->current_weapon ($slots->[0]);
		1781	$pl->combat_ob ($slots->[1]);
		1782	$pl->ranged_ob ($slots->[2]);
		1783	},
		1784	);
1150		1785
1151	sub save($) {	1786	sub save($) {
1152	my ($pl) = @_;	1787	my ($pl) = @_;
1153		1788
1154	return if $pl->{deny_save};	1789	return if $pl->{deny_save};
…		…
1159	return if $pl->{deny_save};	1794	return if $pl->{deny_save};
1160		1795
1161	aio_mkdir playerdir $pl, 0770;	1796	aio_mkdir playerdir $pl, 0770;
1162	$pl->{last_save} = $cf::RUNTIME;	1797	$pl->{last_save} = $cf::RUNTIME;
1163		1798
		1799	cf::get_slot 0.01;
		1800
		1801	# save slots, to be restored later
		1802	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1803
1164	$pl->save_pl ($path);	1804	$pl->save_pl ($path);
1165	Coro::cede;	1805	cf::cede_to_tick;
1166	}	1806	}
1167		1807
1168	sub new($) {	1808	sub new($) {
1169	my ($login) = @_;	1809	my ($login) = @_;
1170		1810
…		…
1176	$cf::PLAYER{$login} = $self;	1816	$cf::PLAYER{$login} = $self;
1177		1817
1178	$self	1818	$self
1179	}	1819	}
1180		1820
		1821	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1822
		1823	=cut
		1824
		1825	sub send_msg {
		1826	my $ns = shift->ns
		1827	or return;
		1828	$ns->send_msg (@_);
		1829	}
		1830
1181	=item $pl->quit_character	1831	=item $pl->quit_character
1182		1832
1183	Nukes the player without looking back. If logged in, the connection will	1833	Nukes the player without looking back. If logged in, the connection will
1184	be destroyed. May block for a long time.	1834	be destroyed. May block for a long time.
1185		1835
1186	=cut	1836	=cut
1187		1837
1188	sub quit_character {	1838	sub quit_character {
1189	my ($pl) = @_;	1839	my ($pl) = @_;
1190		1840
		1841	my $name = $pl->ob->name;
		1842
1191	$pl->{deny_save} = 1;	1843	$pl->{deny_save} = 1;
1192	$pl->password ("*"); # this should lock out the player until we nuked the dir	1844	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1193		1845
1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1846	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1195	$pl->deactivate;	1847	$pl->deactivate;
		1848
		1849	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1196	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1850	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1851	ext::highscore::check ($pl->ob);
		1852
1197	$pl->ns->destroy if $pl->ns;	1853	$pl->ns->destroy if $pl->ns;
1198		1854
1199	my $path = playerdir $pl;	1855	my $path = playerdir $pl;
1200	my $temp = "$path~$cf::RUNTIME~deleting~";	1856	my $temp = "$path~$cf::RUNTIME~deleting~";
1201	aio_rename $path, $temp;	1857	aio_rename $path, $temp;
1202	delete $cf::PLAYER{$pl->ob->name};	1858	delete $cf::PLAYER{$pl->ob->name};
1203	$pl->destroy;	1859	$pl->destroy;
		1860
		1861	my $prefix = qr<^~\Q$name\E/>;
		1862
		1863	# nuke player maps
		1864	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1865
1204	IO::AIO::aio_rmtree $temp;	1866	IO::AIO::aio_rmtree $temp;
		1867	}
		1868
		1869	=item $pl->kick
		1870
		1871	Kicks a player out of the game. This destroys the connection.
		1872
		1873	=cut
		1874
		1875	sub kick {
		1876	my ($pl, $kicker) = @_;
		1877
		1878	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1879	$pl->killer ("kicked");
		1880	$pl->ns->destroy;
1205	}	1881	}
1206		1882
1207	=item cf::player::list_logins	1883	=item cf::player::list_logins
1208		1884
1209	Returns am arrayref of all valid playernames in the system, can take a	1885	Returns am arrayref of all valid playernames in the system, can take a
1210	while and may block, so not sync_job-capable, ever.	1886	while and may block, so not sync_job-capable, ever.
1211		1887
1212	=cut	1888	=cut
1213		1889
1214	sub list_logins {	1890	sub list_logins {
1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1891	my $dirs = aio_readdir $PLAYERDIR
1216	or return [];	1892	or return [];
1217		1893
1218	my @logins;	1894	my @logins;
1219		1895
1220	for my $login (@$dirs) {	1896	for my $login (@$dirs) {
		1897	my $path = path $login;
		1898
		1899	# a .pst is a dead give-away for a valid player
		1900	# if no pst file found, open and chekc for blocked users
		1901	if (aio_stat "$path.pst") {
1221	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1902	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1222	aio_read $fh, 0, 512, my $buf, 0 or next;	1903	aio_read $fh, 0, 512, my $buf, 0 or next;
1223	$buf !~ /^password -------------$/m or next; # official not-valid tag	1904	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1905	}
1224		1906
1225	utf8::decode $login;	1907	utf8::decode $login;
1226	push @logins, $login;	1908	push @logins, $login;
1227	}	1909	}
1228		1910
1229	\@logins	1911	\@logins
1230	}	1912	}
1231		1913
1232	=item $player->maps	1914	=item $player->maps
1233		1915
		1916	=item cf::player::maps $login
		1917
1234	Returns an arrayref of cf::path's of all maps that are private for this	1918	Returns an arrayref of map paths that are private for this
1235	player. May block.	1919	player. May block.
1236		1920
1237	=cut	1921	=cut
1238		1922
1239	sub maps($) {	1923	sub maps($) {
1240	my ($pl) = @_;	1924	my ($pl) = @_;
		1925
		1926	$pl = ref $pl ? $pl->ob->name : $pl;
1241		1927
1242	my $files = aio_readdir playerdir $pl	1928	my $files = aio_readdir playerdir $pl
1243	or return;	1929	or return;
1244		1930
1245	my @paths;	1931	my @paths;
…		…
1247	for (@$files) {	1933	for (@$files) {
1248	utf8::decode $_;	1934	utf8::decode $_;
1249	next if /\.(?:pl|pst)$/;	1935	next if /\.(?:pl|pst)$/;
1250	next unless /^$PATH_SEP/o;	1936	next unless /^$PATH_SEP/o;
1251		1937
1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1938	push @paths, cf::map::normalise "~$pl/$_";
1253	}	1939	}
1254		1940
1255	\@paths	1941	\@paths
1256	}	1942	}
1257		1943
		1944	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1945
		1946	Expand deliantra pod fragments into protocol xml.
		1947
1258	=item $player->ext_reply ($msgid, $msgtype, %msg)	1948	=item $player->ext_msg ($type, @msg)
1259		1949
1260	Sends an ext reply to the player.	1950	Sends an ext event to the client.
1261		1951
1262	=cut	1952	=cut
1263		1953
1264	sub ext_reply($$$%) {	1954	sub ext_msg($$@) {
1265	my ($self, $id, %msg) = @_;	1955	my ($self, $type, @msg) = @_;
1266		1956
1267	$msg{msgid} = $id;	1957	$self->ns->ext_msg ($type, @msg);
1268
1269	$self->send ("ext " . cf::to_json \%msg);
1270	}	1958	}
1271		1959
1272	package cf;	1960	=head3 cf::region
		1961
		1962	=over 4
		1963
		1964	=cut
		1965
		1966	package cf::region;
		1967
		1968	=item cf::region::find_by_path $path
		1969
		1970	Tries to decuce the likely region for a map knowing only its path.
		1971
		1972	=cut
		1973
		1974	sub find_by_path($) {
		1975	my ($path) = @_;
		1976
		1977	$path =~ s/^~[^\/]*//; # skip ~login
		1978
		1979	my ($match, $specificity);
		1980
		1981	for my $region (list) {
		1982	if ($region->{match} && $path =~ $region->{match}) {
		1983	($match, $specificity) = ($region, $region->specificity)
		1984	if $region->specificity > $specificity;
		1985	}
		1986	}
		1987
		1988	$match
		1989	}
1273		1990
1274	=back	1991	=back
1275
1276		1992
1277	=head3 cf::map	1993	=head3 cf::map
1278		1994
1279	=over 4	1995	=over 4
1280		1996
…		…
1283	package cf::map;	1999	package cf::map;
1284		2000
1285	use Fcntl;	2001	use Fcntl;
1286	use Coro::AIO;	2002	use Coro::AIO;
1287		2003
		2004	use overload
		2005	'""' => \&as_string,
		2006	fallback => 1;
		2007
1288	our $MAX_RESET = 3600;	2008	our $MAX_RESET = 3600;
1289	our $DEFAULT_RESET = 3000;	2009	our $DEFAULT_RESET = 3000;
1290		2010
1291	sub generate_random_map {	2011	sub generate_random_map {
		2012	my ($self, $rmp) = @_;
		2013
		2014	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		2015
		2016	$self->_create_random_map ($rmp);
		2017	}
		2018
		2019	=item cf::map->register ($regex, $prio)
		2020
		2021	Register a handler for the map path matching the given regex at the
		2022	givne priority (higher is better, built-in handlers have priority 0, the
		2023	default).
		2024
		2025	=cut
		2026
		2027	sub register {
		2028	my (undef, $regex, $prio) = @_;
		2029	my $pkg = caller;
		2030
		2031	push @{"$pkg\::ISA"}, __PACKAGE__;
		2032
		2033	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2034	}
		2035
		2036	# also paths starting with '/'
		2037	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2038
		2039	sub thawer_merge {
		2040	my ($self, $merge) = @_;
		2041
		2042	# we have to keep some variables in memory intact
		2043	local $self->{path};
		2044	local $self->{load_path};
		2045
		2046	$self->SUPER::thawer_merge ($merge);
		2047	}
		2048
		2049	sub normalise {
1292	my ($path, $rmp) = @_;	2050	my ($path, $base) = @_;
1293		2051
1294	# mit "rum" bekleckern, nicht	2052	$path = "$path"; # make sure it's a string
1295	cf::map::_create_random_map	2053
		2054	$path =~ s/\.map$//;
		2055
		2056	# map plan:
		2057	#
		2058	# /! non-realised random map exit (special hack!)
		2059	# {... are special paths that are not being touched
		2060	# ?xxx/... are special absolute paths
		2061	# ?random/... random maps
		2062	# /... normal maps
		2063	# ~user/... per-player map of a specific user
		2064
		2065	$path =~ s/$PATH_SEP/\//go;
		2066
		2067	# treat it as relative path if it starts with
		2068	# something that looks reasonable
		2069	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2070	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2071
		2072	$base =~ s{[^/]+/?$}{};
		2073	$path = "$base/$path";
		2074	}
		2075
		2076	for ($path) {
		2077	redo if s{/\.?/}{/};
		2078	redo if s{/[^/]+/\.\./}{/};
		2079	}
		2080
1296	$path,	2081	$path
1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1300	$rmp->{exit_on_final_map},
1301	$rmp->{xsize}, $rmp->{ysize},
1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1305	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1307	(cf::region::find $rmp->{region})
1308	}	2082	}
1309		2083
1310	# and all this just because we cannot iterate over	2084	sub new_from_path {
1311	# all maps in C++...	2085	my (undef, $path, $base) = @_;
1312	sub change_all_map_light {	2086
		2087	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2088
		2089	$path = normalise $path, $base;
		2090
		2091	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2092	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2093	my $self = bless cf::map::new, $pkg;
		2094	$self->{path} = $path; $self->path ($path);
		2095	$self->init; # pass $1 etc.
		2096	return $self;
		2097	}
		2098	}
		2099
		2100	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2101	()
		2102	}
		2103
		2104	# may re-bless or do other evil things
		2105	sub init {
1313	my ($change) = @_;	2106	my ($self) = @_;
1314		2107
1315	$_->change_map_light ($change)	2108	$self
1316	for grep $_->outdoor, values %cf::MAP;
1317	}	2109	}
1318		2110
		2111	sub as_string {
		2112	my ($self) = @_;
		2113
		2114	"$self->{path}"
		2115	}
		2116
		2117	# the displayed name, this is a one way mapping
		2118	sub visible_name {
		2119	&as_string
		2120	}
		2121
		2122	# the original (read-only) location
		2123	sub load_path {
		2124	my ($self) = @_;
		2125
		2126	"$MAPDIR/$self->{path}.map"
		2127	}
		2128
		2129	# the temporary/swap location
		2130	sub save_path {
		2131	my ($self) = @_;
		2132
		2133	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2134	"$TMPDIR/$path.map"
		2135	}
		2136
		2137	# the unique path, undef == no special unique path
		2138	sub uniq_path {
		2139	my ($self) = @_;
		2140
		2141	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2142	"$UNIQUEDIR/$path"
		2143	}
		2144
		2145	sub decay_objects {
		2146	my ($self) = @_;
		2147
		2148	return if $self->{deny_reset};
		2149
		2150	$self->do_decay_objects;
		2151	}
		2152
		2153	sub unlink_save {
		2154	my ($self) = @_;
		2155
		2156	utf8::encode (my $save = $self->save_path);
		2157	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2158	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2159	}
		2160
1319	sub try_load_header($) {	2161	sub load_header_from($) {
1320	my ($path) = @_;	2162	my ($self, $path) = @_;
1321		2163
1322	utf8::encode $path;	2164	utf8::encode $path;
1323	aio_open $path, O_RDONLY, 0	2165	my $f = new_from_file cf::object::thawer $path
1324	or return;	2166	or return;
1325		2167
1326	my $map = cf::map::new	2168	$self->_load_header ($f)
1327	or return;	2169	or return;
1328		2170
1329	# for better error messages only, will be overwritten	2171	local $MAP_LOADING{$self->{path}} = $self;
1330	$map->path ($path);	2172	$f->resolve_delayed_derefs;
1331		2173
1332	$map->load_header ($path)	2174	$self->{load_path} = $path;
		2175
		2176	1
		2177	}
		2178
		2179	# used to laod the header of an original map
		2180	sub load_header_orig {
		2181	my ($self) = @_;
		2182
		2183	$self->load_header_from ($self->load_path)
		2184	}
		2185
		2186	# used to laod the header of an instantiated map
		2187	sub load_header_temp {
		2188	my ($self) = @_;
		2189
		2190	$self->load_header_from ($self->save_path)
		2191	}
		2192
		2193	# called after loading the header from an instantiated map
		2194	sub prepare_temp {
		2195	my ($self) = @_;
		2196
		2197	$self->last_access ((delete $self->{last_access})
		2198	|| $cf::RUNTIME); #d#
		2199	# safety
		2200	$self->{instantiate_time} = $cf::RUNTIME
		2201	if $self->{instantiate_time} > $cf::RUNTIME;
		2202	}
		2203
		2204	# called after loading the header from an original map
		2205	sub prepare_orig {
		2206	my ($self) = @_;
		2207
		2208	$self->{load_original} = 1;
		2209	$self->{instantiate_time} = $cf::RUNTIME;
		2210	$self->last_access ($cf::RUNTIME);
		2211	$self->instantiate;
		2212	}
		2213
		2214	sub load_header {
		2215	my ($self) = @_;
		2216
		2217	if ($self->load_header_temp) {
		2218	$self->prepare_temp;
		2219	} else {
		2220	$self->load_header_orig
1333	or return;	2221	or return;
		2222	$self->prepare_orig;
		2223	}
1334		2224
1335	$map->{load_path} = $path;	2225	$self->{deny_reset} = 1
		2226	if $self->no_reset;
1336		2227
1337	$map	2228	$self->default_region (cf::region::find_by_path $self->{path})
		2229	unless $self->default_region;
		2230
		2231	1
1338	}	2232	}
1339		2233
1340	sub find;	2234	sub find;
1341	sub find {	2235	sub find {
1342	my ($path, $origin) = @_;	2236	my ($path, $origin) = @_;
1343		2237
1344	#warn "find<$path,$origin>\n";#d#	2238	cf::cede_to_tick;
1345		2239
1346	$path = new cf::path $path, $origin && $origin->path;	2240	$path = normalise $path, $origin;
1347	my $key = $path->as_string;
1348		2241
1349	cf::lock_wait "map_find:$key";	2242	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1350
1351	$cf::MAP{$key} || do {
1352	my $guard = cf::lock_acquire "map_find:$key";	2243	my $guard2 = cf::lock_acquire "map_find:$path";
1353		2244
1354	# do it the slow way	2245	$cf::MAP{$path} || do {
1355	my $map = try_load_header $path->save_path;	2246	my $map = new_from_path cf::map $path
1356
1357	Coro::cede;
1358
1359	if ($map) {
1360	$map->last_access ((delete $map->{last_access})
1361	|| $cf::RUNTIME); #d#
1362	# safety
1363	$map->{instantiate_time} = $cf::RUNTIME
1364	if $map->{instantiate_time} > $cf::RUNTIME;
1365	} else {
1366	if (my $rmp = $path->random_map_params) {
1367	$map = generate_random_map $key, $rmp;
1368	} else {
1369	$map = try_load_header $path->load_path;
1370	}
1371
1372	$map or return;	2247	or return;
1373		2248
1374	$map->{load_original} = 1;
1375	$map->{instantiate_time} = $cf::RUNTIME;
1376	$map->last_access ($cf::RUNTIME);
1377	$map->instantiate;
1378
1379	# per-player maps become, after loading, normal maps
1380	$map->per_player (0) if $path->{user_rel};
1381	}
1382
1383	$map->path ($key);
1384	$map->{path} = $path;
1385	$map->{last_save} = $cf::RUNTIME;	2249	$map->{last_save} = $cf::RUNTIME;
1386		2250
1387	Coro::cede;	2251	$map->load_header
		2252	or return;
1388		2253
1389	if ($map->should_reset) {	2254	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2255	# doing this can freeze the server in a sync job, obviously
		2256	#$cf::WAIT_FOR_TICK->wait;
		2257	undef $guard2;
		2258	undef $guard1;
1390	$map->reset;	2259	$map->reset;
1391	undef $guard;
1392	$map = find $path	2260	return find $path;
1393	or return;
1394	}	2261	}
1395		2262
1396	$cf::MAP{$key} = $map	2263	$cf::MAP{$path} = $map
1397	}	2264	}
1398	}	2265	}
		2266
		2267	sub pre_load { }
		2268	#sub post_load { } # XS
1399		2269
1400	sub load {	2270	sub load {
1401	my ($self) = @_;	2271	my ($self) = @_;
1402		2272
		2273	local $self->{deny_reset} = 1; # loading can take a long time
		2274
1403	my $path = $self->{path};	2275	my $path = $self->{path};
		2276
		2277	{
1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2278	my $guard = cf::lock_acquire "map_data:$path";
1405		2279
1406	return if $self->in_memory != cf::MAP_SWAPPED;	2280	return unless $self->valid;
		2281	return unless $self->state == cf::MAP_SWAPPED;
1407		2282
1408	$self->in_memory (cf::MAP_LOADING);
1409
1410	$self->alloc;	2283	$self->alloc;
1411	$self->load_objects ($self->{load_path}, 1)	2284
		2285	$self->pre_load;
		2286	cf::cede_to_tick;
		2287
		2288	if (exists $self->{load_path}) {
		2289	my $f = new_from_file cf::object::thawer $self->{load_path};
		2290	$f->skip_block;
		2291	$self->_load_objects ($f)
1412	or return;	2292	or return;
1413		2293
1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2294	$self->post_load_original
1415	if delete $self->{load_original};	2295	if delete $self->{load_original};
1416		2296
1417	if (my $uniq = $path->uniq_path) {	2297	if (my $uniq = $self->uniq_path) {
1418	utf8::encode $uniq;	2298	utf8::encode $uniq;
1419	if (aio_open $uniq, O_RDONLY, 0) {	2299	unless (aio_stat $uniq) {
		2300	if (my $f = new_from_file cf::object::thawer $uniq) {
1420	$self->clear_unique_items;	2301	$self->clear_unique_items;
1421	$self->load_objects ($uniq, 0);	2302	$self->_load_objects ($f);
		2303	$f->resolve_delayed_derefs;
		2304	}
		2305	}
1422	}	2306	}
1423	}
1424		2307
1425	Coro::cede;	2308	$f->resolve_delayed_derefs;
		2309	} else {
		2310	$self->post_load_original
		2311	if delete $self->{load_original};
		2312	}
1426		2313
		2314	$self->state (cf::MAP_INACTIVE);
		2315
		2316	cf::cede_to_tick;
1427	# now do the right thing for maps	2317	# now do the right thing for maps
1428	$self->link_multipart_objects;	2318	$self->link_multipart_objects;
1429
1430	if ($self->{path}->is_style_map) {
1431	$self->{deny_save} = 1;
1432	$self->{deny_reset} = 1;
1433	} else {
1434	$self->fix_auto_apply;
1435	$self->decay_objects;
1436	$self->update_buttons;
1437	$self->set_darkness_map;
1438	$self->difficulty ($self->estimate_difficulty)	2319	$self->difficulty ($self->estimate_difficulty)
1439	unless $self->difficulty;	2320	unless $self->difficulty;
1440	$self->activate;	2321	cf::cede_to_tick;
		2322
		2323	unless ($self->{deny_activate}) {
		2324	$self->decay_objects;
		2325	$self->fix_auto_apply;
		2326	$self->update_buttons;
		2327	cf::cede_to_tick;
		2328	#$self->activate; # no longer activate maps automatically
		2329	}
		2330
		2331	$self->{last_save} = $cf::RUNTIME;
		2332	$self->last_access ($cf::RUNTIME);
		2333	}
		2334
		2335	$self->post_load;
		2336
1441	}	2337	1
1442
1443	Coro::cede;
1444
1445	$self->in_memory (cf::MAP_IN_MEMORY);
1446	}	2338	}
1447		2339
1448	# find and load all maps in the 3x3 area around a map	2340	# customize the map for a given player, i.e.
1449	sub load_diag {	2341	# return the _real_ map. used by e.g. per-player
1450	my ($map) = @_;	2342	# maps to change the path to ~playername/mappath
		2343	sub customise_for {
		2344	my ($self, $ob) = @_;
1451		2345
1452	my @diag; # diagonal neighbours	2346	return find "~" . $ob->name . "/" . $self->{path}
		2347	if $self->per_player;
1453		2348
1454	for (0 .. 3) {	2349	# return find "?party/" . $ob->name . "/" . $self->{path}
1455	my $neigh = $map->tile_path ($_)	2350	# if $self->per_party;
1456	or next;
1457	$neigh = find $neigh, $map
1458	or next;
1459	$neigh->load;
1460		2351
1461	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2352	$self
1462	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1463	}
1464
1465	for (@diag) {
1466	my $neigh = find @$_
1467	or next;
1468	$neigh->load;
1469	}
1470	}	2353	}
1471		2354
1472	sub find_sync {	2355	sub find_sync {
1473	my ($path, $origin) = @_;	2356	my ($path, $origin) = @_;
1474		2357
1475	cf::sync_job { find $path, $origin }	2358	# it's a bug to call this from the main context
		2359	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2360	if $Coro::current == $Coro::main;
		2361
		2362	find $path, $origin
1476	}	2363	}
1477		2364
1478	sub do_load_sync {	2365	sub do_load_sync {
1479	my ($map) = @_;	2366	my ($map) = @_;
1480		2367
1481	cf::sync_job { $map->load };	2368	# it's a bug to call this from the main context
		2369	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2370	if $Coro::current == $Coro::main;
		2371
		2372	$map->load;
1482	}	2373	}
1483		2374
1484	our %MAP_PREFETCH;	2375	our %MAP_PREFETCH;
		2376	our $MAP_PREFETCHER = undef;
		2377
		2378	sub find_async {
		2379	my ($path, $origin, $load) = @_;
		2380
		2381	$path = normalise $path, $origin;
		2382
		2383	if (my $map = $cf::MAP{$path}) {
		2384	return $map if !$load || $map->linkable;
		2385	}
		2386
		2387	$MAP_PREFETCH{$path} |= $load;
		2388
1485	our $MAP_PREFETCHER = Coro::async {	2389	$MAP_PREFETCHER ||= cf::async {
1486	while () {	2390	$Coro::current->{desc} = "map prefetcher";
		2391
1487	while (%MAP_PREFETCH) {	2392	while (%MAP_PREFETCH) {
1488	my $key = each %MAP_PREFETCH	2393	while (my ($k, $v) = each %MAP_PREFETCH) {
1489	or next;	2394	if (my $map = find $k) {
		2395	$map->load if $v;
		2396	}
		2397
1490	my $path = delete $MAP_PREFETCH{$key};	2398	delete $MAP_PREFETCH{$k};
1491
1492	my $map = find $path
1493	or next;
1494	$map->load;
1495	}	2399	}
1496	Coro::schedule;	2400	}
		2401	undef $MAP_PREFETCHER;
1497	}	2402	};
1498	};
1499
1500	sub find_async {
1501	my ($path, $origin) = @_;
1502
1503	$path = new cf::path $path, $origin && $origin->path;
1504	my $key = $path->as_string;
1505
1506	if (my $map = $cf::MAP{$key}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1508	}
1509
1510	$MAP_PREFETCH{$key} = $path;
1511	$MAP_PREFETCHER->ready;	2403	$MAP_PREFETCHER->prio (6);
1512		2404
1513	()	2405	()
		2406	}
		2407
		2408	# common code, used by both ->save and ->swapout
		2409	sub _save {
		2410	my ($self) = @_;
		2411
		2412	$self->{last_save} = $cf::RUNTIME;
		2413
		2414	return unless $self->dirty;
		2415
		2416	my $save = $self->save_path; utf8::encode $save;
		2417	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2418
		2419	$self->{load_path} = $save;
		2420
		2421	return if $self->{deny_save};
		2422
		2423	local $self->{last_access} = $self->last_access;#d#
		2424
		2425	cf::async {
		2426	$Coro::current->{desc} = "map player save";
		2427	$_->contr->save for $self->players;
		2428	};
		2429
		2430	cf::get_slot 0.02;
		2431
		2432	if ($uniq) {
		2433	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2434	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2435	} else {
		2436	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2437	}
1514	}	2438	}
1515		2439
1516	sub save {	2440	sub save {
1517	my ($self) = @_;	2441	my ($self) = @_;
1518		2442
1519	my $lock = cf::lock_acquire "map_data:" . $self->path;	2443	my $lock = cf::lock_acquire "map_data:$self->{path}";
1520		2444
1521	$self->{last_save} = $cf::RUNTIME;	2445	$self->_save;
1522
1523	return unless $self->dirty;
1524
1525	my $save = $self->{path}->save_path; utf8::encode $save;
1526	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1527
1528	$self->{load_path} = $save;
1529
1530	return if $self->{deny_save};
1531
1532	local $self->{last_access} = $self->last_access;#d#
1533
1534	cf::async {
1535	$_->contr->save for $self->players;
1536	};
1537
1538	if ($uniq) {
1539	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1540	$self->save_objects ($uniq, cf::IO_UNIQUES);
1541	} else {
1542	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1543	}
1544	}	2446	}
1545		2447
1546	sub swap_out {	2448	sub swap_out {
1547	my ($self) = @_;	2449	my ($self) = @_;
1548		2450
1549	# save first because save cedes
1550	$self->save;
1551
1552	my $lock = cf::lock_acquire "map_data:" . $self->path;	2451	my $lock = cf::lock_acquire "map_data:$self->{path}";
1553		2452
		2453	return if !$self->linkable;
		2454	return if $self->{deny_save};
1554	return if $self->players;	2455	return if $self->players;
1555	return if $self->in_memory != cf::MAP_IN_MEMORY;
1556	return if $self->{deny_save};
1557		2456
		2457	# first deactivate the map and "unlink" it from the core
		2458	$self->deactivate;
		2459	$_->clear_links_to ($self) for values %cf::MAP;
		2460	$self->state (cf::MAP_SWAPPED);
		2461
		2462	# then atomically save
		2463	$self->_save;
		2464
		2465	# then free the map
1558	$self->clear;	2466	$self->clear;
1559	$self->in_memory (cf::MAP_SWAPPED);
1560	}	2467	}
1561		2468
1562	sub reset_at {	2469	sub reset_at {
1563	my ($self) = @_;	2470	my ($self) = @_;
1564		2471
1565	# TODO: safety, remove and allow resettable per-player maps	2472	# TODO: safety, remove and allow resettable per-player maps
1566	return 1e99 if $self->{path}{user_rel};
1567	return 1e99 if $self->{deny_reset};	2473	return 1e99 if $self->{deny_reset};
1568		2474
1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2475	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2476	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1571		2477
…		…
1576	my ($self) = @_;	2482	my ($self) = @_;
1577		2483
1578	$self->reset_at <= $cf::RUNTIME	2484	$self->reset_at <= $cf::RUNTIME
1579	}	2485	}
1580		2486
1581	sub unlink_save {
1582	my ($self) = @_;
1583
1584	utf8::encode (my $save = $self->{path}->save_path);
1585	aioreq_pri 3; IO::AIO::aio_unlink $save;
1586	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1587	}
1588
1589	sub rename {
1590	my ($self, $new_path) = @_;
1591
1592	$self->unlink_save;
1593
1594	delete $cf::MAP{$self->path};
1595	$self->{path} = new cf::path $new_path;
1596	$self->path ($self->{path}->as_string);
1597	$cf::MAP{$self->path} = $self;
1598
1599	$self->save;
1600	}
1601
1602	sub reset {	2487	sub reset {
1603	my ($self) = @_;	2488	my ($self) = @_;
1604		2489
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2490	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2491
1607	return if $self->players;	2492	return if $self->players;
1608	return if $self->{path}{user_rel};#d#
1609		2493
1610	warn "resetting map ", $self->path;#d#	2494	cf::trace "resetting map ", $self->path, "\n";
		2495
		2496	$self->state (cf::MAP_SWAPPED);
		2497
		2498	# need to save uniques path
		2499	unless ($self->{deny_save}) {
		2500	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2501
		2502	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2503	if $uniq;
		2504	}
1611		2505
1612	delete $cf::MAP{$self->path};	2506	delete $cf::MAP{$self->path};
1613		2507
		2508	$self->deactivate;
1614	$_->clear_links_to ($self) for values %cf::MAP;	2509	$_->clear_links_to ($self) for values %cf::MAP;
		2510	$self->clear;
1615		2511
1616	$self->unlink_save;	2512	$self->unlink_save;
1617	$self->destroy;	2513	$self->destroy;
1618	}	2514	}
1619		2515
1620	my $nuke_counter = "aaaa";	2516	my $nuke_counter = "aaaa";
1621		2517
1622	sub nuke {	2518	sub nuke {
1623	my ($self) = @_;	2519	my ($self) = @_;
1624		2520
		2521	{
		2522	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2523
		2524	delete $cf::MAP{$self->path};
		2525
		2526	$self->unlink_save;
		2527
		2528	bless $self, "cf::map::wrap";
		2529	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2530	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2531	$self->reset_timeout (1);
1627	$self->rename ("{nuke}/" . ($nuke_counter++));	2532	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2533
		2534	$cf::MAP{$self->path} = $self;
		2535	}
		2536
1628	$self->reset; # polite request, might not happen	2537	$self->reset; # polite request, might not happen
1629	}	2538	}
1630		2539
1631	sub customise_for {	2540	=item $maps = cf::map::tmp_maps
1632	my ($map, $ob) = @_;
1633		2541
1634	if ($map->per_player) {	2542	Returns an arrayref with all map paths of currently instantiated and saved
1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2543	maps. May block.
		2544
		2545	=cut
		2546
		2547	sub tmp_maps() {
1636	}	2548	[
		2549	map {
		2550	utf8::decode $_;
		2551	/\.map$/
		2552	? normalise $_
		2553	: ()
		2554	} @{ aio_readdir $TMPDIR or [] }
		2555	]
		2556	}
1637		2557
1638	$map	2558	=item $maps = cf::map::random_maps
		2559
		2560	Returns an arrayref with all map paths of currently instantiated and saved
		2561	random maps. May block.
		2562
		2563	=cut
		2564
		2565	sub random_maps() {
		2566	[
		2567	map {
		2568	utf8::decode $_;
		2569	/\.map$/
		2570	? normalise "?random/$_"
		2571	: ()
		2572	} @{ aio_readdir $RANDOMDIR or [] }
		2573	]
1639	}	2574	}
1640		2575
1641	=item cf::map::unique_maps	2576	=item cf::map::unique_maps
1642		2577
1643	Returns an arrayref of cf::path's of all shared maps that have	2578	Returns an arrayref of paths of all shared maps that have
1644	instantiated unique items. May block.	2579	instantiated unique items. May block.
1645		2580
1646	=cut	2581	=cut
1647		2582
1648	sub unique_maps() {	2583	sub unique_maps() {
1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2584	[
1650	or return;	2585	map {
1651
1652	my @paths;
1653
1654	for (@$files) {
1655	utf8::decode $_;	2586	utf8::decode $_;
1656	next if /\.pst$/;	2587	s/\.map$//; # TODO future compatibility hack
1657	next unless /^$PATH_SEP/o;	2588	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1658		2589	? ()
1659	push @paths, new cf::path $_;	2590	: normalise $_
		2591	} @{ aio_readdir $UNIQUEDIR or [] }
1660	}	2592	]
1661
1662	\@paths
1663	}	2593	}
1664		2594
1665	package cf;	2595	=item cf::map::static_maps
		2596
		2597	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2598	file in the shared directory excluding F</styles> and F</editor>). May
		2599	block.
		2600
		2601	=cut
		2602
		2603	sub static_maps() {
		2604	my @dirs = "";
		2605	my @maps;
		2606
		2607	while (@dirs) {
		2608	my $dir = shift @dirs;
		2609
		2610	next if $dir eq "/styles" || $dir eq "/editor";
		2611
		2612	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2613	or return;
		2614
		2615	for (@$files) {
		2616	s/\.map$// or next;
		2617	utf8::decode $_;
		2618	push @maps, "$dir/$_";
		2619	}
		2620
		2621	push @dirs, map "$dir/$_", @$dirs;
		2622	}
		2623
		2624	\@maps
		2625	}
1666		2626
1667	=back	2627	=back
1668		2628
1669	=head3 cf::object	2629	=head3 cf::object
1670		2630
…		…
1674		2634
1675	=over 4	2635	=over 4
1676		2636
1677	=item $ob->inv_recursive	2637	=item $ob->inv_recursive
1678		2638
1679	Returns the inventory of the object _and_ their inventories, recursively.	2639	Returns the inventory of the object I<and> their inventories, recursively,
		2640	but I<not> the object itself.
1680		2641
1681	=cut	2642	=cut
1682		2643
1683	sub inv_recursive_;	2644	sub inv_recursive_;
1684	sub inv_recursive_ {	2645	sub inv_recursive_ {
…		…
1687		2648
1688	sub inv_recursive {	2649	sub inv_recursive {
1689	inv_recursive_ inv $_[0]	2650	inv_recursive_ inv $_[0]
1690	}	2651	}
1691		2652
		2653	=item $ref = $ob->ref
		2654
		2655	Creates and returns a persistent reference to an object that can be stored as a string.
		2656
		2657	=item $ob = cf::object::deref ($refstring)
		2658
		2659	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2660	even if the object actually exists. May block.
		2661
		2662	=cut
		2663
		2664	sub deref {
		2665	my ($ref) = @_;
		2666
		2667	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2668	my ($uuid, $name) = ($1, $2);
		2669	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2670	or return;
		2671	$pl->ob->uuid eq $uuid
		2672	or return;
		2673
		2674	$pl->ob
		2675	} else {
		2676	warn "$ref: cannot resolve object reference\n";
		2677	undef
		2678	}
		2679	}
		2680
1692	package cf;	2681	package cf;
1693		2682
1694	=back	2683	=back
1695		2684
1696	=head3 cf::object::player	2685	=head3 cf::object::player
…		…
1702	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2691	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1703	can be C<undef>. Does the right thing when the player is currently in a	2692	can be C<undef>. Does the right thing when the player is currently in a
1704	dialogue with the given NPC character.	2693	dialogue with the given NPC character.
1705		2694
1706	=cut	2695	=cut
		2696
		2697	our $SAY_CHANNEL = {
		2698	id => "say",
		2699	title => "Map",
		2700	reply => "say ",
		2701	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2702	};
		2703
		2704	our $CHAT_CHANNEL = {
		2705	id => "chat",
		2706	title => "Chat",
		2707	reply => "chat ",
		2708	tooltip => "Player chat and shouts, global to the server.",
		2709	};
1707		2710
1708	# rough implementation of a future "reply" method that works	2711	# rough implementation of a future "reply" method that works
1709	# with dialog boxes.	2712	# with dialog boxes.
1710	#TODO: the first argument must go, split into a $npc->reply_to ( method	2713	#TODO: the first argument must go, split into a $npc->reply_to ( method
1711	sub cf::object::player::reply($$$;$) {	2714	sub cf::object::player::reply($$$;$) {
…		…
1713		2716
1714	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2717	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1715		2718
1716	if ($self->{record_replies}) {	2719	if ($self->{record_replies}) {
1717	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2720	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2721
1718	} else {	2722	} else {
		2723	my $pl = $self->contr;
		2724
		2725	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2726	my $dialog = $pl->{npc_dialog};
		2727	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2728
		2729	} else {
1719	$msg = $npc->name . " says: $msg" if $npc;	2730	$msg = $npc->name . " says: $msg" if $npc;
1720	$self->message ($msg, $flags);	2731	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2732	}
1721	}	2733	}
		2734	}
		2735
		2736	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2737
		2738	=cut
		2739
		2740	sub cf::object::send_msg {
		2741	my $pl = shift->contr
		2742	or return;
		2743	$pl->send_msg (@_);
1722	}	2744	}
1723		2745
1724	=item $player_object->may ("access")	2746	=item $player_object->may ("access")
1725		2747
1726	Returns wether the given player is authorized to access resource "access"	2748	Returns wether the given player is authorized to access resource "access"
…		…
1739		2761
1740	=item $player_object->enter_link	2762	=item $player_object->enter_link
1741		2763
1742	Freezes the player and moves him/her to a special map (C<{link}>).	2764	Freezes the player and moves him/her to a special map (C<{link}>).
1743		2765
1744	The player should be reaosnably safe there for short amounts of time. You	2766	The player should be reasonably safe there for short amounts of time (e.g.
1745	I<MUST> call C<leave_link> as soon as possible, though.	2767	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2768	though, as the player cannot control the character while it is on the link
		2769	map.
		2770
		2771	Will never block.
1746		2772
1747	=item $player_object->leave_link ($map, $x, $y)	2773	=item $player_object->leave_link ($map, $x, $y)
1748		2774
1749	Moves the player out of the specila link map onto the given map. If the	2775	Moves the player out of the special C<{link}> map onto the specified
1750	map is not valid (or omitted), the player will be moved back to the	2776	map. If the map is not valid (or omitted), the player will be moved back
1751	location he/she was before the call to C<enter_link>, or, if that fails,	2777	to the location he/she was before the call to C<enter_link>, or, if that
1752	to the emergency map position.	2778	fails, to the emergency map position.
1753		2779
1754	Might block.	2780	Might block.
1755		2781
1756	=cut	2782	=cut
		2783
		2784	sub link_map {
		2785	unless ($LINK_MAP) {
		2786	$LINK_MAP = cf::map::find "{link}"
		2787	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2788	$LINK_MAP->load;
		2789	}
		2790
		2791	$LINK_MAP
		2792	}
1757		2793
1758	sub cf::object::player::enter_link {	2794	sub cf::object::player::enter_link {
1759	my ($self) = @_;	2795	my ($self) = @_;
1760		2796
1761	$self->deactivate_recursive;	2797	$self->deactivate_recursive;
1762		2798
1763	return if $self->map == $LINK_MAP;	2799	++$self->{_link_recursion};
		2800
		2801	return if UNIVERSAL::isa $self->map, "ext::map_link";
1764		2802
1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2803	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1766	if $self->map;	2804	if $self->map && $self->map->{path} ne "{link}";
1767		2805
1768	$self->enter_map ($LINK_MAP, 20, 20);	2806	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1769	}	2807	}
1770		2808
1771	sub cf::object::player::leave_link {	2809	sub cf::object::player::leave_link {
1772	my ($self, $map, $x, $y) = @_;	2810	my ($self, $map, $x, $y) = @_;
		2811
		2812	return unless $self->contr->active;
1773		2813
1774	my $link_pos = delete $self->{_link_pos};	2814	my $link_pos = delete $self->{_link_pos};
1775		2815
1776	unless ($map) {	2816	unless ($map) {
1777	# restore original map position	2817	# restore original map position
…		…
1788	($x, $y) = (-1, -1)	2828	($x, $y) = (-1, -1)
1789	unless (defined $x) && (defined $y);	2829	unless (defined $x) && (defined $y);
1790		2830
1791	# use -1 or undef as default coordinates, not 0, 0	2831	# use -1 or undef as default coordinates, not 0, 0
1792	($x, $y) = ($map->enter_x, $map->enter_y)	2832	($x, $y) = ($map->enter_x, $map->enter_y)
1793	if $x <=0 && $y <= 0;	2833	if $x <= 0 && $y <= 0;
1794		2834
1795	$map->load;	2835	$map->load;
1796	$map->load_diag;
1797		2836
1798	return unless $self->contr->active;	2837	return unless $self->contr->active;
		2838
		2839	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2840	if ($self->enter_map ($map, $x, $y)) {
		2841	# entering was successful
		2842	delete $self->{_link_recursion};
		2843	# only activate afterwards, to support waiting in hooks
1799	$self->activate_recursive;	2844	$self->activate_recursive;
1800	$self->enter_map ($map, $x, $y);
1801	}
1802
1803	cf::player->attach (
1804	on_logout => sub {
1805	my ($pl) = @_;
1806
1807	# abort map switching before logout
1808	if ($pl->ob->{_link_pos}) {
1809	cf::sync_job {
1810	$pl->ob->leave_link
1811	};
1812	}
1813	},	2845	}
1814	on_login => sub {
1815	my ($pl) = @_;
1816		2846
1817	# try to abort aborted map switching on player login :)	2847	}
1818	# should happen only on crashes
1819	if ($pl->ob->{_link_pos}) {
1820	$pl->ob->enter_link;
1821	(async {
1822	# we need this sleep as the login has a concurrent enter_exit running
1823	# and this sleep increases chances of the player not ending up in scorn
1824	$pl->ob->reply (undef,
1825	"There was an internal problem at your last logout, "
1826	. "the server will try to bring you to your intended destination in a second.",
1827	cf::NDI_RED);
1828	Coro::Timer::sleep 1;
1829	$pl->ob->leave_link;
1830	})->prio (2);
1831	}
1832	},
1833	);
1834		2848
1835	=item $player_object->goto ($path, $x, $y)	2849	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1836		2850
		2851	Moves the player to the given map-path and coordinates by first freezing
		2852	her, loading and preparing them map, calling the provided $check callback
		2853	that has to return the map if sucecssful, and then unfreezes the player on
		2854	the new (success) or old (failed) map position. In either case, $done will
		2855	be called at the end of this process.
		2856
		2857	Note that $check will be called with a potentially non-loaded map, so if
		2858	it needs a loaded map it has to call C<< ->load >>.
		2859
1837	=cut	2860	=cut
		2861
		2862	our $GOTOGEN;
1838		2863
1839	sub cf::object::player::goto {	2864	sub cf::object::player::goto {
1840	my ($self, $path, $x, $y) = @_;	2865	my ($self, $path, $x, $y, $check, $done) = @_;
1841		2866
1842	$path = new cf::path $path;	2867	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2868	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2869	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2870	($path, $x, $y) = @$EMERGENCY_POSITION;
		2871	}
		2872
		2873	# do generation counting so two concurrent goto's will be executed in-order
		2874	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1843		2875
1844	$self->enter_link;	2876	$self->enter_link;
1845		2877
1846	(async {	2878	(async {
1847	my $map = cf::map::find $path->as_string;	2879	$Coro::current->{desc} = "player::goto $path $x $y";
		2880
		2881	# *tag paths override both path and x|y
		2882	if ($path =~ /^\*(.*)$/) {
		2883	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2884	my $ob = $obs[rand @obs];
		2885
		2886	# see if we actually can go there
		2887	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2888	$ob = $obs[rand @obs];
		2889	} else {
		2890	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2891	}
		2892	# else put us there anyways for now #d#
		2893
		2894	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2895	} else {
		2896	($path, $x, $y) = (undef, undef, undef);
		2897	}
		2898	}
		2899
		2900	my $map = eval {
		2901	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2902
		2903	if ($map) {
1848	$map = $map->customise_for ($self) if $map;	2904	$map = $map->customise_for ($self);
1849		2905	$map = $check->($map, $x, $y, $self) if $check && $map;
1850	# warn "entering ", $map->path, " at ($x, $y)\n"	2906	} else {
1851	# if $map;
1852
1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2907	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2908	}
1854		2909
		2910	$map
		2911	};
		2912
		2913	if ($@) {
		2914	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2915	LOG llevError | logBacktrace, Carp::longmess $@;
		2916	}
		2917
		2918	if ($gen == $self->{_goto_generation}) {
		2919	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2920	$self->leave_link ($map, $x, $y);
		2921	}
		2922
		2923	$done->($self) if $done;
1856	})->prio (1);	2924	})->prio (1);
1857	}	2925	}
1858		2926
1859	=item $player_object->enter_exit ($exit_object)	2927	=item $player_object->enter_exit ($exit_object)
1860		2928
…		…
1862		2930
1863	sub parse_random_map_params {	2931	sub parse_random_map_params {
1864	my ($spec) = @_;	2932	my ($spec) = @_;
1865		2933
1866	my $rmp = { # defaults	2934	my $rmp = { # defaults
1867	xsize => 10,	2935	xsize => (cf::rndm 15, 40),
1868	ysize => 10,	2936	ysize => (cf::rndm 15, 40),
		2937	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2938	#layout => string,
1869	};	2939	};
1870		2940
1871	for (split /\n/, $spec) {	2941	for (split /\n/, $spec) {
1872	my ($k, $v) = split /\s+/, $_, 2;	2942	my ($k, $v) = split /\s+/, $_, 2;
1873		2943
…		…
1885	# that depends on the exit object	2955	# that depends on the exit object
1886		2956
1887	my $rmp = parse_random_map_params $exit->msg;	2957	my $rmp = parse_random_map_params $exit->msg;
1888		2958
1889	if ($exit->map) {	2959	if ($exit->map) {
1890	$rmp->{region} = $exit->map->region_name;	2960	$rmp->{region} = $exit->region->name;
1891	$rmp->{origin_map} = $exit->map->path;	2961	$rmp->{origin_map} = $exit->map->path;
1892	$rmp->{origin_x} = $exit->x;	2962	$rmp->{origin_x} = $exit->x;
1893	$rmp->{origin_y} = $exit->y;	2963	$rmp->{origin_y} = $exit->y;
		2964
		2965	$exit->map->touch;
1894	}	2966	}
1895		2967
1896	$rmp->{random_seed} ||= $exit->random_seed;	2968	$rmp->{random_seed} ||= $exit->random_seed;
1897		2969
1898	my $data = cf::to_json $rmp;	2970	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1899	my $md5 = Digest::MD5::md5_hex $data;	2971	my $md5 = Digest::MD5::md5_hex $data;
		2972	my $meta = "$RANDOMDIR/$md5.meta";
1900		2973
1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2974	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1902	aio_write $fh, 0, (length $data), $data, 0;	2975	aio_write $fh, 0, (length $data), $data, 0;
		2976	undef $fh;
		2977	aio_rename "$meta~", $meta;
1903		2978
		2979	my $slaying = "?random/$md5";
		2980
		2981	if ($exit->valid) {
1904	$exit->slaying ("?random/$md5");	2982	$exit->slaying ("?random/$md5");
1905	$exit->msg (undef);	2983	$exit->msg (undef);
		2984	}
1906	}	2985	}
1907	}	2986	}
1908		2987
1909	sub cf::object::player::enter_exit {	2988	sub cf::object::player::enter_exit {
1910	my ($self, $exit) = @_;	2989	my ($self, $exit) = @_;
…		…
1912	return unless $self->type == cf::PLAYER;	2991	return unless $self->type == cf::PLAYER;
1913		2992
1914	$self->enter_link;	2993	$self->enter_link;
1915		2994
1916	(async {	2995	(async {
1917	$self->deactivate_recursive; # just to be sure	2996	$Coro::current->{desc} = "enter_exit";
		2997
1918	unless (eval {	2998	unless (eval {
		2999	$self->deactivate_recursive; # just to be sure
		3000
		3001	my $map = cf::map::normalise $exit->slaying, $exit->map;
		3002	my $x = $exit->stats->hp;
		3003	my $y = $exit->stats->sp;
		3004
		3005	# special map handling
		3006	my $slaying = $exit->slaying;
		3007
		3008	# special map handling
		3009	if ($slaying eq "/!") {
		3010	my $guard = cf::lock_acquire "exit_prepare:$exit";
		3011
1919	prepare_random_map $exit	3012	prepare_random_map $exit
		3013	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		3014
1920	if $exit->slaying eq "/!";	3015	$map = $exit->slaying;
1921		3016
1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	3017	} elsif ($slaying eq '!up') {
1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	3018	$map = $exit->map->tile_path (cf::TILE_UP);
		3019	$x = $exit->x;
		3020	$y = $exit->y;
1924		3021
		3022	} elsif ($slaying eq '!down') {
		3023	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3024	$x = $exit->x;
		3025	$y = $exit->y;
		3026	}
		3027
		3028	$self->goto ($map, $x, $y);
		3029
		3030	# if exit is damned, update players death & WoR home-position
		3031	$self->contr->savebed ($map, $x, $y)
		3032	if $exit->flag (cf::FLAG_DAMNED);
		3033
1925	1;	3034	1
1926	}) {	3035	}) {
1927	$self->message ("Something went wrong deep within the crossfire server. "	3036	$self->message ("Something went wrong deep within the deliantra server. "
1928	. "I'll try to bring you back to the map you were before. "	3037	. "I'll try to bring you back to the map you were before. "
1929	. "Please report this to the dungeon master!",	3038	. "Please report this to the dungeon master!",
1930	cf::NDI_UNIQUE | cf::NDI_RED);	3039	cf::NDI_UNIQUE | cf::NDI_RED);
1931		3040
1932	warn "ERROR in enter_exit: $@";	3041	error "ERROR in enter_exit: $@";
1933	$self->leave_link;	3042	$self->leave_link;
1934	}	3043	}
1935	})->prio (1);	3044	})->prio (1);
1936	}	3045	}
1937		3046
…		…
1948		3057
1949	sub cf::client::send_drawinfo {	3058	sub cf::client::send_drawinfo {
1950	my ($self, $text, $flags) = @_;	3059	my ($self, $text, $flags) = @_;
1951		3060
1952	utf8::encode $text;	3061	utf8::encode $text;
1953	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3062	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1954	}	3063	}
1955		3064
		3065	=item $client->send_big_packet ($pkt)
		3066
		3067	Like C<send_packet>, but tries to compress large packets, and fragments
		3068	them as required.
		3069
		3070	=cut
		3071
		3072	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3073
		3074	sub cf::client::send_big_packet {
		3075	my ($self, $pkt) = @_;
		3076
		3077	# try lzf for large packets
		3078	$pkt = "lzf " . Compress::LZF::compress $pkt
		3079	if 1024 <= length $pkt and $self->{can_lzf};
		3080
		3081	# split very large packets
		3082	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3083	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3084	$pkt = "frag";
		3085	}
		3086
		3087	$self->send_packet ($pkt);
		3088	}
		3089
		3090	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3091
		3092	Send a drawinfo or msg packet to the client, formatting the msg for the
		3093	client if neccessary. C<$type> should be a string identifying the type of
		3094	the message, with C<log> being the default. If C<$color> is negative, suppress
		3095	the message unless the client supports the msg packet.
		3096
		3097	=cut
		3098
		3099	# non-persistent channels (usually the info channel)
		3100	our %CHANNEL = (
		3101	"c/motd" => {
		3102	id => "infobox",
		3103	title => "MOTD",
		3104	reply => undef,
		3105	tooltip => "The message of the day",
		3106	},
		3107	"c/identify" => {
		3108	id => "infobox",
		3109	title => "Identify",
		3110	reply => undef,
		3111	tooltip => "Items recently identified",
		3112	},
		3113	"c/examine" => {
		3114	id => "infobox",
		3115	title => "Examine",
		3116	reply => undef,
		3117	tooltip => "Signs and other items you examined",
		3118	},
		3119	"c/shopinfo" => {
		3120	id => "infobox",
		3121	title => "Shop Info",
		3122	reply => undef,
		3123	tooltip => "What your bargaining skill tells you about the shop",
		3124	},
		3125	"c/book" => {
		3126	id => "infobox",
		3127	title => "Book",
		3128	reply => undef,
		3129	tooltip => "The contents of a note or book",
		3130	},
		3131	"c/lookat" => {
		3132	id => "infobox",
		3133	title => "Look",
		3134	reply => undef,
		3135	tooltip => "What you saw there",
		3136	},
		3137	"c/who" => {
		3138	id => "infobox",
		3139	title => "Players",
		3140	reply => undef,
		3141	tooltip => "Shows players who are currently online",
		3142	},
		3143	"c/body" => {
		3144	id => "infobox",
		3145	title => "Body Parts",
		3146	reply => undef,
		3147	tooltip => "Shows which body parts you posess and are available",
		3148	},
		3149	"c/statistics" => {
		3150	id => "infobox",
		3151	title => "Statistics",
		3152	reply => undef,
		3153	tooltip => "Shows your primary statistics",
		3154	},
		3155	"c/skills" => {
		3156	id => "infobox",
		3157	title => "Skills",
		3158	reply => undef,
		3159	tooltip => "Shows your experience per skill and item power",
		3160	},
		3161	"c/shopitems" => {
		3162	id => "infobox",
		3163	title => "Shop Items",
		3164	reply => undef,
		3165	tooltip => "Shows the items currently for sale in this shop",
		3166	},
		3167	"c/resistances" => {
		3168	id => "infobox",
		3169	title => "Resistances",
		3170	reply => undef,
		3171	tooltip => "Shows your resistances",
		3172	},
		3173	"c/pets" => {
		3174	id => "infobox",
		3175	title => "Pets",
		3176	reply => undef,
		3177	tooltip => "Shows information abotu your pets/a specific pet",
		3178	},
		3179	"c/perceiveself" => {
		3180	id => "infobox",
		3181	title => "Perceive Self",
		3182	reply => undef,
		3183	tooltip => "You gained detailed knowledge about yourself",
		3184	},
		3185	"c/uptime" => {
		3186	id => "infobox",
		3187	title => "Uptime",
		3188	reply => undef,
		3189	tooltip => "How long the server has been running since last restart",
		3190	},
		3191	"c/mapinfo" => {
		3192	id => "infobox",
		3193	title => "Map Info",
		3194	reply => undef,
		3195	tooltip => "Information related to the maps",
		3196	},
		3197	"c/party" => {
		3198	id => "party",
		3199	title => "Party",
		3200	reply => "gsay ",
		3201	tooltip => "Messages and chat related to your party",
		3202	},
		3203	"c/death" => {
		3204	id => "death",
		3205	title => "Death",
		3206	reply => undef,
		3207	tooltip => "Reason for and more info about your most recent death",
		3208	},
		3209	"c/say" => $SAY_CHANNEL,
		3210	"c/chat" => $CHAT_CHANNEL,
		3211	);
		3212
		3213	sub cf::client::send_msg {
		3214	my ($self, $channel, $msg, $color, @extra) = @_;
		3215
		3216	$msg = $self->pl->expand_cfpod ($msg)
		3217	unless $color & cf::NDI_VERBATIM;
		3218
		3219	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3220
		3221	# check predefined channels, for the benefit of C
		3222	if ($CHANNEL{$channel}) {
		3223	$channel = $CHANNEL{$channel};
		3224
		3225	$self->ext_msg (channel_info => $channel);
		3226	$channel = $channel->{id};
		3227
		3228	} elsif (ref $channel) {
		3229	# send meta info to client, if not yet sent
		3230	unless (exists $self->{channel}{$channel->{id}}) {
		3231	$self->{channel}{$channel->{id}} = $channel;
		3232	$self->ext_msg (channel_info => $channel);
		3233	}
		3234
		3235	$channel = $channel->{id};
		3236	}
		3237
		3238	return unless @extra || length $msg;
		3239
		3240	# default colour, mask it out
		3241	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3242	if $color & cf::NDI_DEF;
		3243
		3244	my $pkt = "msg "
		3245	. $self->{json_coder}->encode (
		3246	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3247	);
		3248
		3249	$self->send_big_packet ($pkt);
		3250	}
		3251
		3252	=item $client->ext_msg ($type, @msg)
		3253
		3254	Sends an ext event to the client.
		3255
		3256	=cut
		3257
		3258	sub cf::client::ext_msg($$@) {
		3259	my ($self, $type, @msg) = @_;
		3260
		3261	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3262	}
1956		3263
1957	=item $success = $client->query ($flags, "text", \&cb)	3264	=item $success = $client->query ($flags, "text", \&cb)
1958		3265
1959	Queues a query to the client, calling the given callback with	3266	Queues a query to the client, calling the given callback with
1960	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3267	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1961	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3268	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1962		3269
1963	Queries can fail, so check the return code. Or don't, as queries will become	3270	Queries can fail, so check the return code. Or don't, as queries will
1964	reliable at some point in the future.	3271	become reliable at some point in the future.
1965		3272
1966	=cut	3273	=cut
1967		3274
1968	sub cf::client::query {	3275	sub cf::client::query {
1969	my ($self, $flags, $text, $cb) = @_;	3276	my ($self, $flags, $text, $cb) = @_;
…		…
1977	utf8::encode $text;	3284	utf8::encode $text;
1978	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3285	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1979		3286
1980	$self->send_packet ($self->{query_queue}[0][0])	3287	$self->send_packet ($self->{query_queue}[0][0])
1981	if @{ $self->{query_queue} } == 1;	3288	if @{ $self->{query_queue} } == 1;
		3289
		3290	1
1982	}	3291	}
1983		3292
1984	cf::client->attach (	3293	cf::client->attach (
		3294	on_connect => sub {
		3295	my ($ns) = @_;
		3296
		3297	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3298	},
1985	on_reply => sub {	3299	on_reply => sub {
1986	my ($ns, $msg) = @_;	3300	my ($ns, $msg) = @_;
1987		3301
1988	# this weird shuffling is so that direct followup queries	3302	# this weird shuffling is so that direct followup queries
1989	# get handled first	3303	# get handled first
1990	my $queue = delete $ns->{query_queue}	3304	my $queue = delete $ns->{query_queue}
1991	or return; # be conservative, not sure how that can happen, but we saw a crash here	3305	or return; # be conservative, not sure how that can happen, but we saw a crash here
1992		3306
1993	(shift @$queue)->[1]->($msg);	3307	(shift @$queue)->[1]->($msg);
		3308	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1994		3309
1995	push @{ $ns->{query_queue} }, @$queue;	3310	push @{ $ns->{query_queue} }, @$queue;
1996		3311
1997	if (@{ $ns->{query_queue} } == @$queue) {	3312	if (@{ $ns->{query_queue} } == @$queue) {
1998	if (@$queue) {	3313	if (@$queue) {
…		…
2000	} else {	3315	} else {
2001	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3316	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2002	}	3317	}
2003	}	3318	}
2004	},	3319	},
		3320	on_exticmd => sub {
		3321	my ($ns, $buf) = @_;
		3322
		3323	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3324
		3325	if (ref $msg) {
		3326	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3327
		3328	if (my $cb = $EXTIACMD{$type}) {
		3329	$cb->(
		3330	$ns,
		3331	sub {
		3332	$ns->ext_msg ("reply-$reply", @_)
		3333	if $reply;
		3334	},
		3335	@payload
		3336	);
		3337	} else {
		3338	my @reply;
		3339
		3340	if (my $cb = $EXTICMD{$type}) {
		3341	@reply = $cb->($ns, @payload);
		3342	}
		3343
		3344	$ns->ext_msg ("reply-$reply", @reply)
		3345	if $reply;
		3346	}
		3347	} else {
		3348	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3349	}
		3350
		3351	cf::override;
		3352	},
2005	);	3353	);
2006		3354
2007	=item $client->async (\&cb)	3355	=item $client->async (\&cb)
2008		3356
2009	Create a new coroutine, running the specified callback. The coroutine will	3357	Create a new coroutine, running the specified callback. The coroutine will
…		…
2025		3373
2026	$coro	3374	$coro
2027	}	3375	}
2028		3376
2029	cf::client->attach (	3377	cf::client->attach (
2030	on_destroy => sub {	3378	on_client_destroy => sub {
2031	my ($ns) = @_;	3379	my ($ns) = @_;
2032		3380
2033	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3381	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2034	},	3382	},
2035	);	3383	);
…		…
2050	our $safe = new Safe "safe";	3398	our $safe = new Safe "safe";
2051	our $safe_hole = new Safe::Hole;	3399	our $safe_hole = new Safe::Hole;
2052		3400
2053	$SIG{FPE} = 'IGNORE';	3401	$SIG{FPE} = 'IGNORE';
2054		3402
2055	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3403	$safe->permit_only (Opcode::opset qw(
		3404	:base_core :base_mem :base_orig :base_math :base_loop
		3405	grepstart grepwhile mapstart mapwhile
		3406	sort time
		3407	));
2056		3408
2057	# here we export the classes and methods available to script code	3409	# here we export the classes and methods available to script code
2058		3410
2059	=pod	3411	=pod
2060		3412
2061	The following fucntions and emthods are available within a safe environment:	3413	The following functions and methods are available within a safe environment:
2062		3414
2063	cf::object contr pay_amount pay_player map	3415	cf::object
		3416	contr pay_amount pay_player map x y force_find force_add destroy
		3417	insert remove name archname title slaying race decrease split
		3418	value
		3419
2064	cf::object::player player	3420	cf::object::player
2065	cf::player peaceful	3421	player
2066	cf::map trigger	3422
		3423	cf::player
		3424	peaceful
		3425
		3426	cf::map
		3427	trigger
2067		3428
2068	=cut	3429	=cut
2069		3430
2070	for (	3431	for (
2071	["cf::object" => qw(contr pay_amount pay_player map)],	3432	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3433	insert remove inv nrof name archname title slaying race
		3434	decrease split destroy change_exp value msg lore send_msg)],
2072	["cf::object::player" => qw(player)],	3435	["cf::object::player" => qw(player)],
2073	["cf::player" => qw(peaceful)],	3436	["cf::player" => qw(peaceful send_msg)],
2074	["cf::map" => qw(trigger)],	3437	["cf::map" => qw(trigger)],
2075	) {	3438	) {
2076	no strict 'refs';
2077	my ($pkg, @funs) = @$_;	3439	my ($pkg, @funs) = @$_;
2078	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3440	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2079	for @funs;	3441	for @funs;
2080	}	3442	}
2081		3443
…		…
2096		3458
2097	my $qcode = $code;	3459	my $qcode = $code;
2098	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3460	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2099	$qcode =~ s/\n/\\n/g;	3461	$qcode =~ s/\n/\\n/g;
2100		3462
		3463	%vars = (_dummy => 0) unless %vars;
		3464
		3465	my @res;
2101	local $_;	3466	local $_;
2102	local @safe::cf::_safe_eval_args = values %vars;
2103		3467
2104	my $eval =	3468	my $eval =
2105	"do {\n"	3469	"do {\n"
2106	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3470	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2107	. "#line 0 \"{$qcode}\"\n"	3471	. "#line 0 \"{$qcode}\"\n"
2108	. $code	3472	. $code
2109	. "\n}"	3473	. "\n}"
2110	;	3474	;
2111		3475
		3476	if ($CFG{safe_eval}) {
2112	sub_generation_inc;	3477	sub_generation_inc;
		3478	local @safe::cf::_safe_eval_args = values %vars;
2113	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3479	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2114	sub_generation_inc;	3480	sub_generation_inc;
		3481	} else {
		3482	local @cf::_safe_eval_args = values %vars;
		3483	@res = wantarray ? eval eval : scalar eval $eval;
		3484	}
2115		3485
2116	if ($@) {	3486	if ($@) {
2117	warn "$@";	3487	warn "$@",
2118	warn "while executing safe code '$code'\n";	3488	"while executing safe code '$code'\n",
2119	warn "with arguments " . (join " ", %vars) . "\n";	3489	"with arguments " . (join " ", %vars) . "\n";
2120	}	3490	}
2121		3491
2122	wantarray ? @res : $res[0]	3492	wantarray ? @res : $res[0]
2123	}	3493	}
2124		3494
…		…
2138	=cut	3508	=cut
2139		3509
2140	sub register_script_function {	3510	sub register_script_function {
2141	my ($fun, $cb) = @_;	3511	my ($fun, $cb) = @_;
2142		3512
2143	no strict 'refs';	3513	$fun = "safe::$fun" if $CFG{safe_eval};
2144	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3514	*$fun = $safe_hole->wrap ($cb);
2145	}	3515	}
2146		3516
2147	=back	3517	=back
2148		3518
2149	=cut	3519	=cut
2150		3520
2151	#############################################################################	3521	#############################################################################
		3522	# the server's init and main functions
2152		3523
2153	=head2 EXTENSION DATABASE SUPPORT	3524	our %FACEHASH; # hash => idx, #d# HACK for http server
2154		3525
2155	Crossfire maintains a very simple database for extension use. It can	3526	# internal api, not fianlised
2156	currently store anything that can be serialised using Storable, which	3527	sub set_face {
2157	excludes objects.	3528	my ($name, $type, $data) = @_;
2158		3529
2159	The parameter C<$family> should best start with the name of the extension	3530	my $idx = cf::face::find $name;
2160	using it, it should be unique.
2161		3531
2162	=over 4	3532	if ($idx) {
2163		3533	delete $FACEHASH{cf::face::get_chksum $idx};
2164	=item $hashref = cf::db_get $family
2165
2166	Return a hashref for use by the extension C<$family>, which can be
2167	modified. After modifications, you have to call C<cf::db_dirty> or
2168	C<cf::db_sync>.
2169
2170	=item $value = cf::db_get $family => $key
2171
2172	Returns a single value from the database
2173
2174	=item cf::db_put $family => $hashref
2175
2176	Stores the given family hashref into the database. Updates are delayed, if
2177	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_put $family => $key => $value
2180
2181	Stores the given C<$value> in the family hash. Updates are delayed, if you
2182	want the data to be synced to disk immediately, use C<cf::db_sync>.
2183
2184	=item cf::db_dirty
2185
2186	Marks the database as dirty, to be updated at a later time.
2187
2188	=item cf::db_sync
2189
2190	Immediately write the database to disk I<if it is dirty>.
2191
2192	=cut
2193
2194	our $DB;
2195
2196	{
2197	my $path = cf::localdir . "/database.pst";
2198
2199	sub db_load() {
2200	$DB = stat $path ? Storable::retrieve $path : { };
2201	}
2202
2203	my $pid;
2204
2205	sub db_save() {
2206	waitpid $pid, 0 if $pid;
2207	if (0 == ($pid = fork)) {
2208	$DB->{_meta}{version} = 1;
2209	Storable::nstore $DB, "$path~";
2210	rename "$path~", $path;
2211	cf::_exit 0 if defined $pid;
2212	}
2213	}
2214
2215	my $dirty;
2216
2217	sub db_sync() {
2218	db_save if $dirty;
2219	undef $dirty;
2220	}
2221
2222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2223	db_sync;
2224	});
2225
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}
2230
2231	sub db_get($;$) {
2232	@_ >= 2
2233	? $DB->{$_[0]}{$_[1]}
2234	: ($DB->{$_[0]} ||= { })
2235	}
2236
2237	sub db_put($$;$) {
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {	3534	} else {
2241	$DB->{$_[0]} = $_[1];	3535	$idx = cf::face::alloc $name;
2242	}	3536	}
2243	db_dirty;	3537
		3538	my $hash = cf::face::mangle_chksum Digest::MD5::md5 $data;
		3539
		3540	cf::face::set_type $idx, $type;
		3541	cf::face::set_data $idx, 0, $data, $hash;
		3542	cf::face::set_meta $idx, $type & 1 ? undef : undef;
		3543	$FACEHASH{$hash} = $idx;#d#
		3544
		3545	$idx
		3546	}
		3547
		3548	sub load_facedata($) {
		3549	my ($path) = @_;
		3550
		3551	# HACK to clear player env face cache, we need some signal framework
		3552	# for this (global event?)
		3553	%ext::player_env::MUSIC_FACE_CACHE = ();
		3554
		3555	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3556
		3557	trace "loading facedata from $path\n";
		3558
		3559	my $facedata = decode_storable load_file $path;
		3560
		3561	$facedata->{version} == 2
		3562	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3563
		3564	cf::cede_to_tick;
		3565
2244	}	3566	{
		3567	my $faces = $facedata->{faceinfo};
2245		3568
2246	cf::global->attach (	3569	for my $face (sort keys %$faces) {
2247	prio => 10000,	3570	my $info = $faces->{$face};
2248	on_cleanup => sub {	3571	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2249	db_sync;	3572
		3573	cf::face::set_visibility $idx, $info->{visibility};
		3574	cf::face::set_magicmap $idx, $info->{magicmap};
		3575	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
		3576	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
		3577	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3578	$FACEHASH{$info->{hash64}} = $idx;#d#
		3579
		3580	cf::cede_to_tick;
2250	},	3581	}
2251	);
2252	}
2253		3582
2254	#############################################################################	3583	while (my ($face, $info) = each %$faces) {
2255	# the server's main()	3584	next unless $info->{smooth};
2256		3585
2257	sub cfg_load {	3586	my $idx = cf::face::find $face
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3587	or next;
2259	or return;
2260		3588
2261	local $/;	3589	if (my $smooth = cf::face::find $info->{smooth}) {
2262	*CFG = YAML::Syck::Load <$fh>;	3590	cf::face::set_smooth $idx, $smooth;
		3591	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3592	} else {
		3593	error "smooth face '$info->{smooth}' not found for face '$face'";
		3594	}
2263		3595
		3596	cf::cede_to_tick;
		3597	}
		3598	}
		3599
		3600	{
		3601	my $anims = $facedata->{animinfo};
		3602
		3603	while (my ($anim, $info) = each %$anims) {
		3604	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3605	cf::cede_to_tick;
		3606	}
		3607
		3608	cf::anim::invalidate_all; # d'oh
		3609	}
		3610
		3611	{
		3612	my $res = $facedata->{resource};
		3613
		3614	while (my ($name, $info) = each %$res) {
		3615	if (defined (my $type = $info->{type})) {
		3616	# TODO: different hash - must free and use new index, or cache ixface data queue
		3617	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3618
		3619	cf::face::set_type $idx, $type;
		3620	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3621	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3622	$FACEHASH{$info->{hash}} = $idx;#d#
		3623	} else {
		3624	# $RESOURCE{$name} = $info; # unused
		3625	}
		3626
		3627	cf::cede_to_tick;
		3628	}
		3629	}
		3630
		3631	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3632
		3633	1
		3634	}
		3635
		3636	register_exticmd fx_want => sub {
		3637	my ($ns, $want) = @_;
		3638
		3639	while (my ($k, $v) = each %$want) {
		3640	$ns->fx_want ($k, $v);
		3641	}
		3642	};
		3643
		3644	sub load_resource_file($) {
		3645	my $guard = lock_acquire "load_resource_file";
		3646
		3647	my $status = load_resource_file_ $_[0];
		3648	get_slot 0.1, 100;
		3649	cf::arch::commit_load;
		3650
		3651	$status
		3652	}
		3653
		3654	sub reload_exp_table {
		3655	_reload_exp_table;
		3656
		3657	set_face "res/exp_table" => FT_RSRC,
		3658	JSON::XS->new->utf8->canonical->encode (
		3659	[map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]
		3660	);
		3661	}
		3662
		3663	sub reload_materials {
		3664	_reload_materials;
		3665	}
		3666
		3667	sub reload_regions {
		3668	# HACK to clear player env face cache, we need some signal framework
		3669	# for this (global event?)
		3670	%ext::player_env::MUSIC_FACE_CACHE = ();
		3671
		3672	load_resource_file "$MAPDIR/regions"
		3673	or die "unable to load regions file\n";
		3674
		3675	for (cf::region::list) {
		3676	$_->{match} = qr/$_->{match}/
		3677	if exists $_->{match};
		3678	}
		3679	}
		3680
		3681	sub reload_facedata {
		3682	load_facedata "$DATADIR/facedata"
		3683	or die "unable to load facedata\n";
		3684	}
		3685
		3686	sub reload_archetypes {
		3687	load_resource_file "$DATADIR/archetypes"
		3688	or die "unable to load archetypes\n";
		3689
		3690	set_face "res/skill_info" => FT_RSRC,
		3691	JSON::XS->new->utf8->canonical->encode (
		3692	[map [cf::arch::skillvec ($_)->name], 0 .. cf::arch::skillvec_size - 1]
		3693	);
		3694	set_face "res/spell_paths" => FT_RSRC,
		3695	JSON::XS->new->utf8->canonical->encode (
		3696	[map [cf::spellpathnames ($_)], 0 .. NRSPELLPATHS - 1]
		3697	);
		3698	}
		3699
		3700	sub reload_treasures {
		3701	load_resource_file "$DATADIR/treasures"
		3702	or die "unable to load treasurelists\n";
		3703	}
		3704
		3705	sub reload_sound {
		3706	trace "loading sound config from $DATADIR/sound\n";
		3707
		3708	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3709
		3710	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3711	my $sound = $soundconf->{compat}[$_]
		3712	or next;
		3713
		3714	my $face = cf::face::find "sound/$sound->[1]";
		3715	cf::sound::set $sound->[0] => $face;
		3716	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3717	}
		3718
		3719	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3720	my $face = cf::face::find "sound/$v";
		3721	cf::sound::set $k => $face;
		3722	}
		3723	}
		3724
		3725	sub reload_resources {
		3726	trace "reloading resource files...\n";
		3727
		3728	reload_materials;
		3729	reload_facedata;
		3730	reload_exp_table;
		3731	reload_sound;
		3732	reload_archetypes;
		3733	reload_regions;
		3734	reload_treasures;
		3735
		3736	trace "finished reloading resource files\n";
		3737	}
		3738
		3739	sub reload_config {
		3740	trace "reloading config file...\n";
		3741
		3742	my $config = load_file "$CONFDIR/config";
		3743	utf8::decode $config;
		3744	*CFG = decode_yaml $config;
		3745
2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3746	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2265		3747
2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3748	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2267	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3749	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2268		3750
2269	if (exists $CFG{mlockall}) {	3751	if (exists $CFG{mlockall}) {
…		…
2273	};	3755	};
2274	warn $@ if $@;	3756	warn $@ if $@;
2275	}	3757	}
2276	}	3758	}
2277		3759
		3760	sub pidfile() {
		3761	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3762	or die "$PIDFILE: $!";
		3763	flock $fh, &Fcntl::LOCK_EX
		3764	or die "$PIDFILE: flock: $!";
		3765	$fh
		3766	}
		3767
		3768	# make sure only one server instance is running at any one time
		3769	sub atomic {
		3770	my $fh = pidfile;
		3771
		3772	my $pid = <$fh>;
		3773	kill 9, $pid if $pid > 0;
		3774
		3775	seek $fh, 0, 0;
		3776	print $fh $$;
		3777	}
		3778
		3779	sub main_loop {
		3780	trace "EV::loop starting\n";
		3781	if (1) {
		3782	EV::loop;
		3783	}
		3784	trace "EV::loop returned\n";
		3785	goto &main_loop unless $REALLY_UNLOOP;
		3786	}
		3787
2278	sub main {	3788	sub main {
		3789	cf::init_globals; # initialise logging
		3790
		3791	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3792	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3793	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3794	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3795
		3796	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3797
2279	# we must not ever block the main coroutine	3798	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	3799	$Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3800	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2282	async { Event::one_event };	3801	(async {
		3802	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3803	EV::loop EV::LOOP_ONESHOT;
		3804	})->prio (Coro::PRIO_MAX);
2283	};	3805	};
2284		3806
2285	cfg_load;	3807	evthread_start IO::AIO::poll_fileno;
2286	db_load;	3808
		3809	cf::sync_job {
		3810	cf::incloader::init ();
		3811
		3812	db_init;
		3813
		3814	cf::init_anim;
		3815	cf::init_attackmess;
		3816	cf::init_dynamic;
		3817
		3818	cf::load_settings;
		3819
		3820	reload_resources;
		3821	reload_config;
		3822
		3823	cf::init_uuid;
		3824	cf::init_signals;
		3825	cf::init_skills;
		3826
		3827	cf::init_beforeplay;
		3828
		3829	atomic;
		3830
2287	load_extensions;	3831	load_extensions;
2288	Event::loop;	3832
		3833	utime time, time, $RUNTIMEFILE;
		3834
		3835	# no (long-running) fork's whatsoever before this point(!)
		3836	use POSIX ();
		3837	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3838
		3839	cf::_post_init 0;
		3840	};
		3841
		3842	cf::object::thawer::errors_are_fatal 0;
		3843	info "parse errors in files are no longer fatal from this point on.\n";
		3844
		3845	AE::postpone {
		3846	undef &main; # free gobs of memory :)
		3847	};
		3848
		3849	goto &main_loop;
2289	}	3850	}
2290		3851
2291	#############################################################################	3852	#############################################################################
2292	# initialisation and cleanup	3853	# initialisation and cleanup
2293		3854
2294	# install some emergency cleanup handlers	3855	# install some emergency cleanup handlers
2295	BEGIN {	3856	BEGIN {
		3857	our %SIGWATCHER = ();
2296	for my $signal (qw(INT HUP TERM)) {	3858	for my $signal (qw(INT HUP TERM)) {
2297	Event->signal (	3859	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2298	data => WF_AUTOCANCEL,
2299	signal => $signal,
2300	cb => sub {
2301	cf::cleanup "SIG$signal";	3860	cf::cleanup "SIG$signal";
2302	},
2303	);	3861	};
		3862	}
		3863	}
		3864
		3865	sub write_runtime_sync {
		3866	my $t0 = AE::time;
		3867
		3868	# first touch the runtime file to show we are still running:
		3869	# the fsync below can take a very very long time.
		3870
		3871	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3872
		3873	my $guard = cf::lock_acquire "write_runtime";
		3874
		3875	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3876	or return;
		3877
		3878	my $value = $cf::RUNTIME + 90 + 10;
		3879	# 10 is the runtime save interval, for a monotonic clock
		3880	# 60 allows for the watchdog to kill the server.
		3881
		3882	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3883	and return;
		3884
		3885	# always fsync - this file is important
		3886	aio_fsync $fh
		3887	and return;
		3888
		3889	# touch it again to show we are up-to-date
		3890	aio_utime $fh, undef, undef;
		3891
		3892	close $fh
		3893	or return;
		3894
		3895	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3896	and return;
		3897
		3898	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3899
2304	}	3900	1
		3901	}
		3902
		3903	our $uuid_lock;
		3904	our $uuid_skip;
		3905
		3906	sub write_uuid_sync($) {
		3907	$uuid_skip ||= $_[0];
		3908
		3909	return if $uuid_lock;
		3910	local $uuid_lock = 1;
		3911
		3912	my $uuid = "$LOCALDIR/uuid";
		3913
		3914	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3915	or return;
		3916
		3917	my $value = uuid_seq uuid_cur;
		3918
		3919	unless ($value) {
		3920	info "cowardly refusing to write zero uuid value!\n";
		3921	return;
		3922	}
		3923
		3924	my $value = uuid_str $value + $uuid_skip;
		3925	$uuid_skip = 0;
		3926
		3927	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3928	and return;
		3929
		3930	# always fsync - this file is important
		3931	aio_fsync $fh
		3932	and return;
		3933
		3934	close $fh
		3935	or return;
		3936
		3937	aio_rename "$uuid~", $uuid
		3938	and return;
		3939
		3940	trace "uuid file written ($value).\n";
		3941
		3942	1
		3943
		3944	}
		3945
		3946	sub write_uuid($$) {
		3947	my ($skip, $sync) = @_;
		3948
		3949	$sync ? write_uuid_sync $skip
		3950	: async { write_uuid_sync $skip };
2305	}	3951	}
2306		3952
2307	sub emergency_save() {	3953	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	3954	my $freeze_guard = cf::freeze_mainloop;
2309		3955
2310	warn "enter emergency perl save\n";	3956	info "emergency_perl_save: enter\n";
		3957
		3958	# this is a trade-off: we want to be very quick here, so
		3959	# save all maps without fsync, and later call a global sync
		3960	# (which in turn might be very very slow)
		3961	local $USE_FSYNC = 0;
2311		3962
2312	cf::sync_job {	3963	cf::sync_job {
		3964	cf::write_runtime_sync; # external watchdog should not bark
		3965
2313	# use a peculiar iteration method to avoid tripping on perl	3966	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	3967	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/Destroyed asynchronously.	3968	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	3969	info "emergency_perl_save: begin player save\n";
2317	for my $login (keys %cf::PLAYER) {	3970	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	3971	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	3972	$pl->valid or next;
		3973	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2320	$pl->save;	3974	$pl->save;
2321	}	3975	}
2322	warn "end emergency player save\n";	3976	info "emergency_perl_save: end player save\n";
2323		3977
2324	warn "begin emergency map save\n";	3978	cf::write_runtime_sync; # external watchdog should not bark
		3979
		3980	info "emergency_perl_save: begin map save\n";
2325	for my $path (keys %cf::MAP) {	3981	for my $path (keys %cf::MAP) {
2326	my $map = $cf::MAP{$path} or next;	3982	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	3983	$map->valid or next;
2328	$map->save;	3984	$map->save;
2329	}	3985	}
2330	warn "end emergency map save\n";	3986	info "emergency_perl_save: end map save\n";
		3987
		3988	cf::write_runtime_sync; # external watchdog should not bark
		3989
		3990	info "emergency_perl_save: begin database checkpoint\n";
		3991	BDB::db_env_txn_checkpoint $DB_ENV;
		3992	info "emergency_perl_save: end database checkpoint\n";
		3993
		3994	info "emergency_perl_save: begin write uuid\n";
		3995	write_uuid_sync 1;
		3996	info "emergency_perl_save: end write uuid\n";
		3997
		3998	cf::write_runtime_sync; # external watchdog should not bark
		3999
		4000	trace "emergency_perl_save: syncing database to disk";
		4001	BDB::db_env_txn_checkpoint $DB_ENV;
		4002
		4003	info "emergency_perl_save: starting sync\n";
		4004	IO::AIO::aio_sync sub {
		4005	info "emergency_perl_save: finished sync\n";
		4006	};
		4007
		4008	cf::write_runtime_sync; # external watchdog should not bark
		4009
		4010	trace "emergency_perl_save: flushing outstanding aio requests";
		4011	while (IO::AIO::nreqs || BDB::nreqs) {
		4012	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		4013	}
		4014
		4015	cf::write_runtime_sync; # external watchdog should not bark
2331	};	4016	};
2332		4017
2333	warn "leave emergency perl save\n";	4018	info "emergency_perl_save: leave\n";
2334	}	4019	}
2335		4020
		4021	sub post_cleanup {
		4022	my ($make_core) = @_;
		4023
		4024	IO::AIO::flush;
		4025
		4026	error Carp::longmess "post_cleanup backtrace"
		4027	if $make_core;
		4028
		4029	my $fh = pidfile;
		4030	unlink $PIDFILE if <$fh> == $$;
		4031	}
		4032
		4033	# a safer delete_package, copied from Symbol
		4034	sub clear_package($) {
		4035	my $pkg = shift;
		4036
		4037	# expand to full symbol table name if needed
		4038	unless ($pkg =~ /^main::.*::$/) {
		4039	$pkg = "main$pkg" if $pkg =~ /^::/;
		4040	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		4041	$pkg .= '::' unless $pkg =~ /::$/;
		4042	}
		4043
		4044	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		4045	my $stem_symtab = *{$stem}{HASH};
		4046
		4047	defined $stem_symtab and exists $stem_symtab->{$leaf}
		4048	or return;
		4049
		4050	# clear all symbols
		4051	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4052	for my $name (keys %$leaf_symtab) {
		4053	_gv_clear *{"$pkg$name"};
		4054	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4055	}
		4056	}
		4057
2336	sub reload() {	4058	sub do_reload_perl() {
2337	# can/must only be called in main	4059	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	4060	unless (in_main) {
2339	warn "can only reload from main coroutine\n";	4061	error "can only reload from main coroutine";
2340	return;	4062	return;
2341	}	4063	}
2342		4064
2343	warn "reloading...";	4065	return if $RELOAD++;
2344		4066
2345	my $guard = freeze_mainloop;	4067	my $t1 = AE::time;
		4068
		4069	while ($RELOAD) {
		4070	cf::get_slot 0.1, -1, "reload_perl";
		4071	info "perl_reload: reloading...";
		4072
		4073	trace "perl_reload: entering sync_job";
		4074
		4075	cf::sync_job {
2346	cf::emergency_save;	4076	#cf::emergency_save;
2347		4077
2348	eval {	4078	trace "perl_reload: cancelling all extension coros";
2349	# if anything goes wrong in here, we should simply crash as we already saved
2350
2351	# cancel all watchers
2352	for (Event::all_watchers) {
2353	$_->cancel if $_->data & WF_AUTOCANCEL;
2354	}
2355
2356	# cancel all extension coros
2357	$_->cancel for values %EXT_CORO;	4079	$_->cancel for values %EXT_CORO;
2358	%EXT_CORO = ();	4080	%EXT_CORO = ();
2359		4081
2360	# unload all extensions	4082	trace "perl_reload: removing commands";
2361	for (@exts) {	4083	%COMMAND = ();
2362	warn "unloading <$_>";
2363	unload_extension $_;
2364	}
2365		4084
2366	# unload all modules loaded from $LIBDIR	4085	trace "perl_reload: removing ext/exti commands";
2367	while (my ($k, $v) = each %INC) {	4086	%EXTCMD = ();
2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4087	%EXTICMD = ();
2369		4088
2370	warn "removing <$k>";	4089	trace "perl_reload: unloading/nuking all extensions";
2371	delete $INC{$k};	4090	for my $pkg (@EXTS) {
		4091	trace "... unloading $pkg";
2372		4092
2373	$k =~ s/\.pm$//;
2374	$k =~ s/\//::/g;
2375
2376	if (my $cb = $k->can ("unload_module")) {	4093	if (my $cb = $pkg->can ("unload")) {
		4094	eval {
2377	$cb->();	4095	$cb->($pkg);
		4096	1
		4097	} or error "$pkg unloaded, but with errors: $@";
		4098	}
		4099
		4100	trace "... clearing $pkg";
		4101	clear_package $pkg;
2378	}	4102	}
2379		4103
2380	Symbol::delete_package $k;	4104	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4105	while (my ($k, $v) = each %INC) {
		4106	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4107
		4108	trace "... unloading $k";
		4109	delete $INC{$k};
		4110
		4111	$k =~ s/\.pm$//;
		4112	$k =~ s/\//::/g;
		4113
		4114	if (my $cb = $k->can ("unload_module")) {
		4115	$cb->();
		4116	}
		4117
		4118	clear_package $k;
2381	}	4119	}
2382		4120
2383	# sync database to disk
2384	cf::db_sync;
2385	IO::AIO::flush;
2386
2387	# get rid of safe::, as good as possible	4121	trace "perl_reload: getting rid of safe::, as good as possible";
2388	Symbol::delete_package "safe::$_"	4122	clear_package "safe::$_"
2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4123	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2390		4124
2391	# remove register_script_function callbacks	4125	trace "perl_reload: unloading cf.pm \"a bit\"";
2392	# TODO
2393
2394	# unload cf.pm "a bit"
2395	delete $INC{"cf.pm"};	4126	delete $INC{"cf.pm"};
		4127	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2396		4128
2397	# don't, removes xs symbols, too,	4129	# don't, removes xs symbols, too,
2398	# and global variables created in xs	4130	# and global variables created in xs
2399	#Symbol::delete_package __PACKAGE__;	4131	#clear_package __PACKAGE__;
2400		4132
2401	# reload cf.pm	4133	info "perl_reload: unload completed, starting to reload now";
2402	warn "reloading cf.pm";	4134
		4135	trace "perl_reload: reloading cf.pm";
2403	require cf;	4136	require cf;
2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4137	cf::_connect_to_perl_1;
2405		4138
2406	# load config and database again	4139	trace "perl_reload: loading config and database again";
2407	cf::cfg_load;	4140	cf::reload_config;
2408	cf::db_load;
2409		4141
2410	# load extensions	4142	trace "perl_reload: loading extensions";
2411	warn "load extensions";
2412	cf::load_extensions;	4143	cf::load_extensions;
2413		4144
2414	# reattach attachments to objects	4145	if ($REATTACH_ON_RELOAD) {
2415	warn "reattach";	4146	trace "perl_reload: reattaching attachments to objects/players";
2416	_global_reattach;	4147	_global_reattach; # objects, sockets
		4148	trace "perl_reload: reattaching attachments to maps";
2417	reattach $_ for values %MAP;	4149	reattach $_ for values %MAP;
		4150	trace "perl_reload: reattaching attachments to players";
		4151	reattach $_ for values %PLAYER;
		4152	}
		4153
		4154	cf::_post_init 1;
		4155
		4156	trace "perl_reload: leaving sync_job";
		4157
		4158	1
		4159	} or do {
		4160	error $@;
		4161	cf::cleanup "perl_reload: error, exiting.";
		4162	};
		4163
		4164	--$RELOAD;
		4165	}
		4166
		4167	$t1 = AE::time - $t1;
		4168	info "perl_reload: completed in ${t1}s\n";
		4169	};
		4170
		4171	our $RELOAD_WATCHER; # used only during reload
		4172
		4173	sub reload_perl() {
		4174	# doing reload synchronously and two reloads happen back-to-back,
		4175	# coro crashes during coro_state_free->destroy here.
		4176
		4177	$RELOAD_WATCHER ||= cf::async {
		4178	Coro::AIO::aio_wait cache_extensions;
		4179
		4180	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4181	do_reload_perl;
		4182	undef $RELOAD_WATCHER;
		4183	};
2418	};	4184	};
2419
2420	if ($@) {
2421	warn $@;
2422	warn "error while reloading, exiting.";
2423	exit 1;
2424	}
2425
2426	warn "reloaded successfully";
2427	};
2428
2429	#############################################################################
2430
2431	unless ($LINK_MAP) {
2432	$LINK_MAP = cf::map::new;
2433
2434	$LINK_MAP->width (41);
2435	$LINK_MAP->height (41);
2436	$LINK_MAP->alloc;
2437	$LINK_MAP->path ("{link}");
2438	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2439	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2440
2441	# dirty hack because... archetypes are not yet loaded
2442	Event->timer (
2443	after => 10,
2444	cb => sub {
2445	$_[0]->w->cancel;
2446
2447	# provide some exits "home"
2448	my $exit = cf::object::new "exit";
2449
2450	$exit->slaying ($EMERGENCY_POSITION->[0]);
2451	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2452	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2453
2454	$LINK_MAP->insert ($exit->clone, 19, 19);
2455	$LINK_MAP->insert ($exit->clone, 19, 20);
2456	$LINK_MAP->insert ($exit->clone, 19, 21);
2457	$LINK_MAP->insert ($exit->clone, 20, 19);
2458	$LINK_MAP->insert ($exit->clone, 20, 21);
2459	$LINK_MAP->insert ($exit->clone, 21, 19);
2460	$LINK_MAP->insert ($exit->clone, 21, 20);
2461	$LINK_MAP->insert ($exit->clone, 21, 21);
2462
2463	$exit->destroy;
2464	});
2465
2466	$LINK_MAP->{deny_save} = 1;
2467	$LINK_MAP->{deny_reset} = 1;
2468
2469	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2470	}	4185	}
2471
2472	register "<global>", __PACKAGE__;
2473		4186
2474	register_command "reload" => sub {	4187	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	4188	my ($who, $arg) = @_;
2476		4189
2477	if ($who->flag (FLAG_WIZ)) {	4190	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("start of reload.");
2479	reload;
2480	$who->message ("end of reload.");	4191	$who->message ("reloading server.");
		4192	async {
		4193	$Coro::current->{desc} = "perl_reload";
		4194	reload_perl;
		4195	};
2481	}	4196	}
2482	};	4197	};
2483		4198
2484	unshift @INC, $LIBDIR;	4199	#############################################################################
2485		4200
2486	$TICK_WATCHER = Event->timer (	4201	my $bug_warning = 0;
2487	reentrant => 0,
2488	prio => 0,
2489	at => $NEXT_TICK || $TICK,
2490	data => WF_AUTOCANCEL,
2491	cb => sub {
2492	cf::server_tick; # one server iteration
2493	$RUNTIME += $TICK;
2494	$NEXT_TICK += $TICK;
2495		4202
		4203	sub wait_for_tick() {
		4204	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4205
		4206	$WAIT_FOR_TICK->wait;
		4207	}
		4208
		4209	sub wait_for_tick_begin() {
		4210	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4211
		4212	my $signal = new Coro::Signal;
		4213	push @WAIT_FOR_TICK_BEGIN, $signal;
		4214	$signal->wait;
		4215	}
		4216
		4217	sub tick {
		4218	if ($Coro::current != $Coro::main) {
		4219	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4220	unless ++$bug_warning > 10;
		4221	return;
		4222	}
		4223
		4224	cf::one_tick; # one server iteration
		4225
		4226	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4227
		4228	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4229	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4230	Coro::async_pool {
		4231	$Coro::current->{desc} = "runtime saver";
		4232	write_runtime_sync
		4233	or error "ERROR: unable to write runtime file: $!";
		4234	};
		4235	}
		4236
		4237	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4238	$sig->send;
		4239	}
2496	$WAIT_FOR_TICK->broadcast;	4240	$WAIT_FOR_TICK->broadcast;
2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2498		4241
2499	# if we are delayed by four ticks or more, skip them all	4242	$LOAD = ($NOW - $TICK_START) / $TICK;
2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4243	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2501		4244
2502	$TICK_WATCHER->at ($NEXT_TICK);	4245	if (0) {
2503	$TICK_WATCHER->start;	4246	if ($NEXT_TICK) {
		4247	my $jitter = $TICK_START - $NEXT_TICK;
		4248	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4249	debug "jitter $JITTER\n";#d#
		4250	}
2504	},	4251	}
2505	);	4252	}
2506		4253
		4254	{
		4255	# configure BDB
		4256	info "initialising database";
		4257
		4258	BDB::min_parallel 16;
		4259	BDB::max_poll_reqs $TICK * 0.1;
		4260	#$AnyEvent::BDB::WATCHER->priority (1);
		4261
		4262	unless ($DB_ENV) {
		4263	$DB_ENV = BDB::db_env_create;
		4264	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4265	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4266	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4267	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4268	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4269
		4270	cf::sync_job {
		4271	eval {
		4272	BDB::db_env_open
		4273	$DB_ENV,
		4274	$BDBDIR,
		4275	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4276	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4277	0666;
		4278
		4279	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4280	};
		4281
		4282	cf::cleanup "db_env_open(db): $@" if $@;
		4283	};
		4284	}
		4285
		4286	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4287	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4288	};
		4289	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4290	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4291	};
		4292	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4293	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4294	};
		4295
		4296	info "database initialised";
		4297	}
		4298
		4299	{
		4300	# configure IO::AIO
		4301
		4302	info "initialising aio";
		4303	IO::AIO::min_parallel 8;
2507	IO::AIO::max_poll_time $TICK * 0.2;	4304	IO::AIO::max_poll_time $TICK * 0.1;
		4305	undef $AnyEvent::AIO::WATCHER;
		4306	info "aio initialised";
		4307	}
2508		4308
2509	Event->io (	4309	our $_log_backtrace;
2510	fd => IO::AIO::poll_fileno,	4310	our $_log_backtrace_last;
2511	poll => 'r',
2512	prio => 5,
2513	data => WF_AUTOCANCEL,
2514	cb => \&IO::AIO::poll_cb,
2515	);
2516		4311
2517	Event->timer (	4312	sub _log_backtrace {
2518	data => WF_AUTOCANCEL,	4313	my ($msg, @addr) = @_;
2519	after => 0,	4314
2520	interval => 10,	4315	$msg =~ s/\n$//;
2521	cb => sub {	4316
2522	(Coro::unblock_sub {	4317	if ($_log_backtrace_last eq $msg) {
2523	write_runtime	4318	LOG llevInfo, "[ABT] $msg\n";
2524	or warn "ERROR: unable to write runtime file: $!";	4319	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4320	# limit the # of concurrent backtraces
		4321	} elsif ($_log_backtrace < 2) {
		4322	$_log_backtrace_last = $msg;
		4323	++$_log_backtrace;
		4324	my $perl_bt = Carp::longmess $msg;
		4325	async {
		4326	$Coro::current->{desc} = "abt $msg";
		4327
		4328	my @bt = fork_call {
		4329	@addr = map { sprintf "%x", $_ } @addr;
		4330	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4331	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4332	or die "addr2line: $!";
		4333
		4334	my @funcs;
		4335	my @res = <$fh>;
		4336	chomp for @res;
		4337	while (@res) {
		4338	my ($func, $line) = splice @res, 0, 2, ();
		4339	push @funcs, "[$func] $line";
		4340	}
		4341
		4342	@funcs
		4343	};
		4344
		4345	LOG llevInfo, "[ABT] $perl_bt\n";
		4346	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4347	LOG llevInfo, "[ABT] $_\n" for @bt;
		4348	--$_log_backtrace;
2525	})->();	4349	};
		4350	} else {
		4351	LOG llevInfo, "[ABT] $msg\n";
		4352	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2526	},	4353	}
2527	);	4354	}
		4355
		4356	# load additional modules
		4357	require "cf/$_.pm" for @EXTRA_MODULES;
		4358	cf::_connect_to_perl_2;
2528		4359
2529	END { cf::emergency_save }	4360	END { cf::emergency_save }
2530		4361
2531	1	4362	1
2532		4363

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