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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 1.583 by root, Mon Oct 29 23:12:37 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 Guard ();
13	use Coro 3.3 ();	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
		53	use JSON::XS 2.01 ();
		54	use BDB ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;
22	use Fcntl;	56	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
25	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
26		62
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
		64
		65	# configure various modules to our taste
		66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		78
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		80
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	81	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		82
36	our %COMMAND = ();	83	our %COMMAND = ();
37	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
39		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
40	our @EVENT;	93	our @EVENT;
41	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
42		96
43	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
44	our $TICK_WATCHER;	98
		99	our $DATADIR = datadir;
		100	our $LIBDIR = "$DATADIR/ext";
		101	our $PODDIR = "$DATADIR/pod";
		102	our $MAPDIR = "$DATADIR/" . mapdir;
		103
		104	our $LOCALDIR = localdir;
		105	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		106	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		107	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		108	our $RANDOMDIR = "$LOCALDIR/random";
		109	our $BDBDIR = "$LOCALDIR/db";
		110	our $PIDFILE = "$LOCALDIR/pid";
		111	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		112
		113	#our %RESOURCE; # unused
		114
		115	our $OUTPUT_RATE_MIN = 3000;
		116	our $OUTPUT_RATE_MAX = 1000000;
		117
		118	our $MAX_LINKS = 32; # how many chained exits to follow
		119	our $VERBOSE_IO = 1;
		120
		121	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		122	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	123	our $NEXT_TICK;
		124	our $USE_FSYNC = 1; # use fsync to write maps - default on
		125
		126	our $BDB_DEADLOCK_WATCHER;
		127	our $BDB_CHECKPOINT_WATCHER;
		128	our $BDB_TRICKLE_WATCHER;
		129	our $DB_ENV;
		130
		131	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		132
		133	our %CFG;
		134	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		135
		136	our $UPTIME; $UPTIME ||= time;
		137	our $RUNTIME = 0;
		138	our $SERVER_TICK = 0;
46	our $NOW;	139	our $NOW;
47		140
48	our %CFG;	141	our (%PLAYER, %PLAYER_LOADING); # all users
		142	our (%MAP, %MAP_LOADING ); # all maps
		143	our $LINK_MAP; # the special {link} map, which is always available
49		144
50	our $UPTIME; $UPTIME ||= time;	145	# used to convert map paths into valid unix filenames by replacing / by ∕
51	our $RUNTIME;	146	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
52		147
53	our %PLAYER; # all users	148	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
54	our %MAP; # all maps	149	our $LOADAVG; # same thing, but with alpha-smoothing
55	our $LINK_MAP; # the special {link} map	150	our $JITTER; # average jitter
56	our $RANDOM_MAPS = cf::localdir . "/random";	151	our $TICK_START; # for load detecting purposes
57	our %EXT_CORO; # coroutines bound to extensions
58		152
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	153	our @POST_INIT;
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	154
		155	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		156	our $REALLY_UNLOOP; # never set to true, please :)
		157
		158	our $WAIT_FOR_TICK = new Coro::Signal;
		159	our @WAIT_FOR_TICK_BEGIN;
61		160
62	binmode STDOUT;	161	binmode STDOUT;
63	binmode STDERR;	162	binmode STDERR;
64		163
65	# read virtual server time, if available	164	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	165	unless ($RUNTIME || !-e $RUNTIMEFILE) {
67	open my $fh, "<", cf::localdir . "/runtime"	166	open my $fh, "<", $RUNTIMEFILE
68	or die "unable to read runtime file: $!";	167	or die "unable to read $RUNTIMEFILE file: $!";
69	$RUNTIME = <$fh> + 0.;	168	$RUNTIME = <$fh> + 0.;
70	}	169	}
71		170
72	mkdir cf::localdir;	171	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		172
78	# a special map that is always available	173	mkdir $_
79	our $LINK_MAP;	174	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		175
80	our $EMERGENCY_POSITION;	176	our $EMERGENCY_POSITION;
81		177
		178	sub cf::map::normalise;
		179
		180	sub in_main() {
		181	$Coro::current == $Coro::main
		182	}
		183
82	#############################################################################	184	#############################################################################
83		185
		186	%REFLECT = ();
		187	for (@REFLECT) {
		188	my $reflect = JSON::XS::decode_json $_;
		189	$REFLECT{$reflect->{class}} = $reflect;
		190	}
		191
		192	# this is decidedly evil
		193	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		194
		195	#############################################################################
		196
84	=head2 GLOBAL VARIABLES	197	=head2 GLOBAL VARIABLES
85		198
86	=over 4	199	=over 4
87		200
88	=item $cf::UPTIME	201	=item $cf::UPTIME
89		202
90	The timestamp of the server start (so not actually an uptime).	203	The timestamp of the server start (so not actually an "uptime").
		204
		205	=item $cf::SERVER_TICK
		206
		207	An unsigned integer that starts at zero when the server is started and is
		208	incremented on every tick.
		209
		210	=item $cf::NOW
		211
		212	The (real) time of the last (current) server tick - updated before and
		213	after tick processing, so this is useful only as a rough "what time is it
		214	now" estimate.
		215
		216	=item $cf::TICK
		217
		218	The interval between each server tick, in seconds.
91		219
92	=item $cf::RUNTIME	220	=item $cf::RUNTIME
93		221
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	222	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	223	every server tick.
96		224
97	=item $cf::LIBDIR	225	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		226	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		227	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		228
99	The perl library directory, where extensions and cf-specific modules can	229	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	230	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		231	unique-items directory, player file directory, random maps directory and
		232	database environment.
101		233
		234	=item $cf::LOADAVG
		235
		236	The current CPU load on the server (alpha-smoothed), as a value between 0
		237	(none) and 1 (overloaded), indicating how much time is spent on processing
		238	objects per tick. Healthy values are < 0.5.
		239
102	=item $cf::NOW	240	=item $cf::LOAD
103		241
104	The time of the last (current) server tick.	242	The raw value load value from the last tick.
105
106	=item $cf::TICK
107
108	The interval between server ticks, in seconds.
109		243
110	=item %cf::CFG	244	=item %cf::CFG
111		245
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	246	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	247	from wherever your confdir points to.
114		248
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	249	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		250
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	251	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	252	returns directly I<after> the tick processing (and consequently, can only wake one thread
119	processing has been done. Call C<< ->wait >> on them to maximise the	253	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	254
		255	Note that cf::Wait_for_tick will immediately return when the server is not
		256	ticking, making it suitable for small pauses in threads that need to run
		257	when the server is paused. If that is not applicable (i.e. you I<really>
		258	want to wait, use C<$cf::WAIT_FOR_TICK>).
		259
		260	=item $cf::WAIT_FOR_TICK
		261
		262	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		263	variable contains a L<Coro::Signal> that is broadcats after every server
		264	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		265	next server tick.
		266
		267	=cut
		268
		269	sub wait_for_tick();
		270	sub wait_for_tick_begin();
		271
		272	=item @cf::INVOKE_RESULTS
		273
		274	This array contains the results of the last C<invoke ()> call. When
		275	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		276	that call.
		277
		278	=item %cf::REFLECT
		279
		280	Contains, for each (C++) class name, a hash reference with information
		281	about object members (methods, scalars, arrays and flags) and other
		282	metadata, which is useful for introspection.
121		283
122	=back	284	=back
123		285
124	=cut	286	=cut
125		287
126	BEGIN {	288	sub error(@) { LOG llevError, join "", @_ }
127	*CORE::GLOBAL::warn = sub {	289	sub warn (@) { LOG llevWarn , join "", @_ }
		290	sub info (@) { LOG llevInfo , join "", @_ }
		291	sub debug(@) { LOG llevDebug, join "", @_ }
		292	sub trace(@) { LOG llevTrace, join "", @_ }
		293
		294	$Coro::State::WARNHOOK = sub {
128	my $msg = join "", @_;	295	my $msg = join "", @_;
129	utf8::encode $msg;
130		296
131	$msg .= "\n"	297	$msg .= "\n"
132	unless $msg =~ /\n$/;	298	unless $msg =~ /\n$/;
133		299
		300	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		301
134	LOG llevError, $msg;	302	LOG llevWarn, $msg;
135	};	303	};
136	}	304
		305	$Coro::State::DIEHOOK = sub {
		306	return unless $^S eq 0; # "eq", not "=="
		307
		308	error Carp::longmess $_[0];
		309
		310	if (in_main) {#d#
		311	error "DIEHOOK called in main context, Coro bug?\n";#d#
		312	return;#d#
		313	}#d#
		314
		315	# kill coroutine otherwise
		316	Coro::terminate
		317	};
137		318
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	319	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	320	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	321	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	322	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	323	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		324	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	325	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		326
145	# we bless all objects into (empty) derived classes to force a method lookup	327	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	328	# within the Safe compartment.
147	for my $pkg (qw(	329	for my $pkg (qw(
148	cf::global cf::attachable	330	cf::global cf::attachable
149	cf::object cf::object::player	331	cf::object cf::object::player
150	cf::client cf::player	332	cf::client cf::player
151	cf::arch cf::living	333	cf::arch cf::living
		334	cf::map cf::mapspace
152	cf::map cf::party cf::region	335	cf::party cf::region
153	)) {	336	)) {
154	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	337	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	338	}
157		339
158	$Event::DIED = sub {	340	$EV::DIED = sub {
159	warn "error in event callback: @_";	341	Carp::cluck "error in event callback: @_";
160	};	342	};
161		343
162	my %ext_pkg;	344	#############################################################################
163	my @exts;	345
164	my @hook;	346	sub fork_call(&@);
		347	sub get_slot($;$$);
		348
		349	#############################################################################
165		350
166	=head2 UTILITY FUNCTIONS	351	=head2 UTILITY FUNCTIONS
167		352
168	=over 4	353	=over 4
169		354
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	373	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	374	$d
190	} || "[unable to dump $_[0]: '$@']";	375	} || "[unable to dump $_[0]: '$@']";
191	}	376	}
192		377
193	use JSON::Syck (); # TODO# replace by JSON::PC once working	378	=item $scalar = cf::load_file $path
194		379
		380	Loads the given file from path and returns its contents. Croaks on error
		381	and can block.
		382
		383	=cut
		384
		385	sub load_file($) {
		386	0 <= aio_load $_[0], my $data
		387	or Carp::croak "$_[0]: $!";
		388
		389	$data
		390	}
		391
		392	=item $success = cf::replace_file $path, $data, $sync
		393
		394	Atomically replaces the file at the given $path with new $data, and
		395	optionally $sync the data to disk before replacing the file.
		396
		397	=cut
		398
		399	sub replace_file($$;$) {
		400	my ($path, $data, $sync) = @_;
		401
		402	my $lock = cf::lock_acquire ("replace_file:$path");
		403
		404	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		405	or return;
		406
		407	$data = $data->() if ref $data;
		408
		409	length $data == aio_write $fh, 0, (length $data), $data, 0
		410	or return;
		411
		412	!$sync
		413	or !aio_fsync $fh
		414	or return;
		415
		416	aio_close $fh
		417	and return;
		418
		419	aio_rename "$path~", $path
		420	and return;
		421
		422	if ($sync) {
		423	$path =~ s%/[^/]*$%%;
		424	aio_pathsync $path;
		425	}
		426
		427	1
		428	}
		429
195	=item $ref = cf::from_json $json	430	=item $ref = cf::decode_json $json
196		431
197	Converts a JSON string into the corresponding perl data structure.	432	Converts a JSON string into the corresponding perl data structure.
198		433
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	434	=item $json = cf::encode_json $ref
207		435
208	Converts a perl data structure into its JSON representation.	436	Converts a perl data structure into its JSON representation.
209		437
210	=cut	438	=cut
211		439
212	sub to_json($) {	440	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	441
214	JSON::Syck::Dump $_[0]	442	sub encode_json($) { $json_coder->encode ($_[0]) }
		443	sub decode_json($) { $json_coder->decode ($_[0]) }
		444
		445	=item $ref = cf::decode_storable $scalar
		446
		447	Same as Coro::Storable::thaw, so blocks.
		448
		449	=cut
		450
		451	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		452
		453	=item $ref = cf::decode_yaml $scalar
		454
		455	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		456
		457	=cut
		458
		459	sub decode_yaml($) {
		460	fork_call { YAML::XS::Load $_[0] } @_
		461	}
		462
		463	=item $scalar = cf::unlzf $scalar
		464
		465	Same as Compress::LZF::compress, but takes server ticks into account, so
		466	blocks.
		467
		468	=cut
		469
		470	sub unlzf($) {
		471	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		472	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		473	Compress::LZF::decompress $_[0]
		474	}
		475
		476	=item cf::post_init { BLOCK }
		477
		478	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		479	but I<before> the server starts ticking again.
		480
		481	The codeblock will have a single boolean argument to indicate whether this
		482	is a reload or not.
		483
		484	=cut
		485
		486	sub post_init(&) {
		487	push @POST_INIT, shift;
		488	}
		489
		490	sub _post_init {
		491	trace "running post_init jobs";
		492
		493	# run them in parallel...
		494
		495	my @join;
		496
		497	while () {
		498	push @join, map &Coro::async ($_, 0), @POST_INIT;
		499	@POST_INIT = ();
		500
		501	@join or last;
		502
		503	(pop @join)->join;
		504	}
215	}	505	}
216		506
217	=item cf::lock_wait $string	507	=item cf::lock_wait $string
218		508
219	Wait until the given lock is available. See cf::lock_acquire.	509	Wait until the given lock is available. See cf::lock_acquire.
220		510
221	=item my $lock = cf::lock_acquire $string	511	=item my $lock = cf::lock_acquire $string
222		512
223	Wait until the given lock is available and then acquires it and returns	513	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	514	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	515	for example when the coroutine gets canceled), the lock is automatically
226	returned.	516	returned.
227		517
		518	Locks are *not* recursive, locking from the same coro twice results in a
		519	deadlocked coro.
		520
228	Lock names should begin with a unique identifier (for example, cf::map::find	521	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	522	uses map_find and cf::map::load uses map_load).
230		523
231	=cut	524	=item $locked = cf::lock_active $string
232		525
233	our %LOCK;	526	Return true if the lock is currently active, i.e. somebody has locked it.
		527
		528	=cut
		529
		530	our $LOCKS = new Coro::SemaphoreSet;
234		531
235	sub lock_wait($) {	532	sub lock_wait($) {
236	my ($key) = @_;	533	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	534	}
244		535
245	sub lock_acquire($) {	536	sub lock_acquire($) {
246	my ($key) = @_;	537	$LOCKS->guard ($_[0])
		538	}
247		539
248	# wait, to be sure we are not locked	540	sub lock_active($) {
249	lock_wait $key;	541	$LOCKS->count ($_[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	}	542	}
258		543
259	sub freeze_mainloop {	544	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	545	tick_inhibit_inc;
261		546
262	my $guard = Coro::guard { $TICK_WATCHER->start };	547	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	548	}
264	$guard	549
		550	=item cf::periodic $interval, $cb
		551
		552	Like EV::periodic, but randomly selects a starting point so that the actions
		553	get spread over time.
		554
		555	=cut
		556
		557	sub periodic($$) {
		558	my ($interval, $cb) = @_;
		559
		560	my $start = rand List::Util::min 180, $interval;
		561
		562	EV::periodic $start, $interval, 0, $cb
		563	}
		564
		565	=item cf::get_slot $time[, $priority[, $name]]
		566
		567	Allocate $time seconds of blocking CPU time at priority C<$priority>
		568	(default: 0): This call blocks and returns only when you have at least
		569	C<$time> seconds of cpu time till the next tick. The slot is only valid
		570	till the next cede.
		571
		572	Background jobs should use a priority les than zero, interactive jobs
		573	should use 100 or more.
		574
		575	The optional C<$name> can be used to identify the job to run. It might be
		576	used for statistical purposes and should identify the same time-class.
		577
		578	Useful for short background jobs.
		579
		580	=cut
		581
		582	our @SLOT_QUEUE;
		583	our $SLOT_QUEUE;
		584	our $SLOT_DECAY = 0.9;
		585
		586	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		587	$SLOT_QUEUE = Coro::async {
		588	$Coro::current->desc ("timeslot manager");
		589
		590	my $signal = new Coro::Signal;
		591	my $busy;
		592
		593	while () {
		594	next_job:
		595
		596	my $avail = cf::till_tick;
		597
		598	for (0 .. $#SLOT_QUEUE) {
		599	if ($SLOT_QUEUE[$_][0] <= $avail) {
		600	$busy = 0;
		601	my $job = splice @SLOT_QUEUE, $_, 1, ();
		602	$job->[2]->send;
		603	Coro::cede;
		604	goto next_job;
		605	} else {
		606	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		607	}
		608	}
		609
		610	if (@SLOT_QUEUE) {
		611	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		612	$WAIT_FOR_TICK->wait;
		613	} else {
		614	$busy = 0;
		615	Coro::schedule;
		616	}
		617	}
		618	};
		619
		620	sub get_slot($;$$) {
		621	return if tick_inhibit || $Coro::current == $Coro::main;
		622
		623	my ($time, $pri, $name) = @_;
		624
		625	$time = clamp $time, 0.01, $TICK * .6;
		626
		627	my $sig = new Coro::Signal;
		628
		629	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		630	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		631	$SLOT_QUEUE->ready;
		632	$sig->wait;
265	}	633	}
266		634
267	=item cf::async { BLOCK }	635	=item cf::async { BLOCK }
268		636
269	Currently the same as Coro::async_pool, meaning you cannot use	637	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		642
275	BEGIN { *async = \&Coro::async_pool }	643	BEGIN { *async = \&Coro::async_pool }
276		644
277	=item cf::sync_job { BLOCK }	645	=item cf::sync_job { BLOCK }
278		646
279	The design of crossfire+ requires that the main coro ($Coro::main) is	647	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	648	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	649	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		650	acceptable.
282		651
283	If it must be done, put the blocking parts into C<sync_job>. This will run	652	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	653	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	654	server will be frozen during this time, so the block should either finish
286	fast or be very important.	655	fast or be very important.
…		…
288	=cut	657	=cut
289		658
290	sub sync_job(&) {	659	sub sync_job(&) {
291	my ($job) = @_;	660	my ($job) = @_;
292		661
293	if ($Coro::current == $Coro::main) {	662	if (in_main) {
		663	my $time = AE::time;
		664
294	# this is the main coro, too bad, we have to block	665	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	666	# till the operation succeeds, freezing the server :/
296		667
297	# TODO: use suspend/resume instead	668	#LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	669
299	my $freeze_guard = freeze_mainloop;	670	my $freeze_guard = freeze_mainloop;
300		671
301	my $busy = 1;	672	my $busy = 1;
302	my @res;	673	my @res;
303		674
304	(async {	675	(async {
		676	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	677	@res = eval { $job->() };
306	warn $@ if $@;	678	error $@ if $@;
307	undef $busy;	679	undef $busy;
308	})->prio (Coro::PRIO_MAX);	680	})->prio (Coro::PRIO_MAX);
309		681
310	while ($busy) {	682	while ($busy) {
311	Coro::cede or Event::one_event;	683	if (Coro::nready) {
		684	Coro::cede_notself;
		685	} else {
		686	EV::loop EV::LOOP_ONESHOT;
312	}	687	}
		688	}
		689
		690	my $time = AE::time - $time;
		691
		692	$TICK_START += $time; # do not account sync jobs to server load
313		693
314	wantarray ? @res : $res[0]	694	wantarray ? @res : $res[0]
315	} else {	695	} else {
316	# we are in another coroutine, how wonderful, everything just works	696	# we are in another coroutine, how wonderful, everything just works
317		697
…		…
319	}	699	}
320	}	700	}
321		701
322	=item $coro = cf::async_ext { BLOCK }	702	=item $coro = cf::async_ext { BLOCK }
323		703
324	Like async, but this coro is automcatially being canceled when the	704	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	705	extension calling this is being unloaded.
326		706
327	=cut	707	=cut
328		708
329	sub async_ext(&) {	709	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	717	$EXT_CORO{$coro+0} = $coro;
338		718
339	$coro	719	$coro
340	}	720	}
341		721
342	sub write_runtime {	722	=item fork_call { }, @args
343	my $runtime = cf::localdir . "/runtime";
344		723
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	724	Executes the given code block with the given arguments in a seperate
346	or return;	725	process, returning the results. Everything must be serialisable with
		726	Coro::Storable. May, of course, block. Note that the executed sub may
		727	never block itself or use any form of event handling.
347		728
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	729	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		730
352	aio_fsync $fh	731	sub post_fork {
353	and return;	732	reset_signals;
		733	}
354		734
355	close $fh	735	sub fork_call(&@) {
356	or return;	736	my ($cb, @args) = @_;
357		737
358	aio_rename "$runtime~", $runtime	738	# we seemingly have to make a local copy of the whole thing,
359	and return;	739	# otherwise perl prematurely frees the stuff :/
		740	# TODO: investigate and fix (likely this will be rather laborious)
360		741
		742	my @res = Coro::Util::fork_eval {
		743	cf::post_fork;
		744	&$cb
		745	} @args;
		746
		747	wantarray ? @res : $res[-1]
		748	}
		749
		750	sub objinfo {
361	1	751	(
		752	"counter value" => cf::object::object_count,
		753	"objects created" => cf::object::create_count,
		754	"objects destroyed" => cf::object::destroy_count,
		755	"freelist size" => cf::object::free_count,
		756	"allocated objects" => cf::object::objects_size,
		757	"active objects" => cf::object::actives_size,
		758	)
		759	}
		760
		761	=item $coin = coin_from_name $name
		762
		763	=cut
		764
		765	our %coin_alias = (
		766	"silver" => "silvercoin",
		767	"silvercoin" => "silvercoin",
		768	"silvercoins" => "silvercoin",
		769	"gold" => "goldcoin",
		770	"goldcoin" => "goldcoin",
		771	"goldcoins" => "goldcoin",
		772	"platinum" => "platinacoin",
		773	"platinumcoin" => "platinacoin",
		774	"platinumcoins" => "platinacoin",
		775	"platina" => "platinacoin",
		776	"platinacoin" => "platinacoin",
		777	"platinacoins" => "platinacoin",
		778	"royalty" => "royalty",
		779	"royalties" => "royalty",
		780	);
		781
		782	sub coin_from_name($) {
		783	$coin_alias{$_[0]}
		784	? cf::arch::find $coin_alias{$_[0]}
		785	: undef
		786	}
		787
		788	=item $value = cf::db_get $family => $key
		789
		790	Returns a single value from the environment database.
		791
		792	=item cf::db_put $family => $key => $value
		793
		794	Stores the given C<$value> in the family. It can currently store binary
		795	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		796
		797	=item $db = cf::db_table "name"
		798
		799	Create and/or open a new database table. The string must not be "db" and must be unique
		800	within each server.
		801
		802	=cut
		803
		804	sub db_table($) {
		805	cf::error "db_get called from main context"
		806	if $Coro::current == $Coro::main;
		807
		808	my ($name) = @_;
		809	my $db = BDB::db_create $DB_ENV;
		810
		811	eval {
		812	$db->set_flags (BDB::CHKSUM);
		813
		814	utf8::encode $name;
		815	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		816	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		817	cf::cleanup "db_open(db): $!" if $!;
		818	};
		819	cf::cleanup "db_open(db): $@" if $@;
		820
		821	$db
		822	}
		823
		824	our $DB;
		825
		826	sub db_init {
		827	$DB ||= db_table "db";
		828	}
		829
		830	sub db_get($$) {
		831	my $key = "$_[0]/$_[1]";
		832
		833	cf::error "db_get called from main context"
		834	if $Coro::current == $Coro::main;
		835
		836	BDB::db_get $DB, undef, $key, my $data;
		837
		838	$! ? ()
		839	: $data
		840	}
		841
		842	sub db_put($$$) {
		843	BDB::dbreq_pri 4;
		844	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		845	}
		846
		847	=item cf::cache $id => [$paths...], $processversion => $process
		848
		849	Generic caching function that returns the value of the resource $id,
		850	caching and regenerating as required.
		851
		852	This function can block.
		853
		854	=cut
		855
		856	sub cache {
		857	my ($id, $src, $processversion, $process) = @_;
		858
		859	my $meta =
		860	join "\x00",
		861	$processversion,
		862	map {
		863	aio_stat $_
		864	and Carp::croak "$_: $!";
		865
		866	($_, (stat _)[7,9])
		867	} @$src;
		868
		869	my $dbmeta = db_get cache => "$id/meta";
		870	if ($dbmeta ne $meta) {
		871	# changed, we may need to process
		872
		873	my @data;
		874	my $md5;
		875
		876	for (0 .. $#$src) {
		877	$data[$_] = load_file $src->[$_];
		878	}
		879
		880	# if processing is expensive, check
		881	# checksum first
		882	if (1) {
		883	$md5 =
		884	join "\x00",
		885	$processversion,
		886	map {
		887	cf::cede_to_tick;
		888	($src->[$_], Digest::MD5::md5_hex $data[$_])
		889	} 0.. $#$src;
		890
		891
		892	my $dbmd5 = db_get cache => "$id/md5";
		893	if ($dbmd5 eq $md5) {
		894	db_put cache => "$id/meta", $meta;
		895
		896	return db_get cache => "$id/data";
		897	}
		898	}
		899
		900	my $t1 = Time::HiRes::time;
		901	my $data = $process->(\@data);
		902	my $t2 = Time::HiRes::time;
		903
		904	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		905
		906	db_put cache => "$id/data", $data;
		907	db_put cache => "$id/md5" , $md5;
		908	db_put cache => "$id/meta", $meta;
		909
		910	return $data;
		911	}
		912
		913	db_get cache => "$id/data"
		914	}
		915
		916	=item cf::datalog type => key => value, ...
		917
		918	Log a datalog packet of the given type with the given key-value pairs.
		919
		920	=cut
		921
		922	sub datalog($@) {
		923	my ($type, %kv) = @_;
		924	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	925	}
363		926
364	=back	927	=back
365		928
366	=cut	929	=cut
367		930
368	#############################################################################	931	#############################################################################
369		932
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	933	=head2 ATTACHABLE OBJECTS
498		934
499	Many objects in crossfire are so-called attachable objects. That means you can	935	Many objects in deliantra are so-called attachable objects. That means you can
500	attach callbacks/event handlers (a collection of which is called an "attachment")	936	attach callbacks/event handlers (a collection of which is called an "attachment")
501	to it. All such attachable objects support the following methods.	937	to it. All such attachable objects support the following methods.
502		938
503	In the following description, CLASS can be any of C<global>, C<object>	939	In the following description, CLASS can be any of C<global>, C<object>
504	C<player>, C<client> or C<map> (i.e. the attachable objects in	940	C<player>, C<client> or C<map> (i.e. the attachable objects in
505	crossfire+).	941	Deliantra).
506		942
507	=over 4	943	=over 4
508		944
509	=item $attachable->attach ($attachment, key => $value...)	945	=item $attachable->attach ($attachment, key => $value...)
510		946
…		…
554	=item cf::CLASS::attachment $name, ...	990	=item cf::CLASS::attachment $name, ...
555		991
556	Register an attachment by C<$name> through which attachable objects of the	992	Register an attachment by C<$name> through which attachable objects of the
557	given CLASS can refer to this attachment.	993	given CLASS can refer to this attachment.
558		994
559	Some classes such as crossfire maps and objects can specify attachments	995	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.	996	that are attached at load/instantiate time, thus the need for a name.
561		997
562	These calls expect any number of the following handler/hook descriptions:	998	These calls expect any number of the following handler/hook descriptions:
563		999
564	=over 4	1000	=over 4
…		…
624	our @CB_TYPE = (); # registry for type (cf-object class) based events	1060	our @CB_TYPE = (); # registry for type (cf-object class) based events
625	our @CB_MAP = ();	1061	our @CB_MAP = ();
626		1062
627	my %attachment;	1063	my %attachment;
628		1064
		1065	sub cf::attachable::thawer_merge {
		1066	# simply override everything except _meta
		1067	local $_[0]{_meta};
		1068	%{$_[0]} = %{$_[1]};
		1069	}
		1070
629	sub _attach_cb($$$$) {	1071	sub _attach_cb($$$$) {
630	my ($registry, $event, $prio, $cb) = @_;	1072	my ($registry, $event, $prio, $cb) = @_;
631		1073
632	use sort 'stable';	1074	use sort 'stable';
633		1075
…		…
667	$registry = $CB_TYPE[$object_type] ||= [];	1109	$registry = $CB_TYPE[$object_type] ||= [];
668		1110
669	} elsif ($type eq "subtype") {	1111	} elsif ($type eq "subtype") {
670	defined $object_type or Carp::croak "subtype specified without type";	1112	defined $object_type or Carp::croak "subtype specified without type";
671	my $object_subtype = shift @arg;	1113	my $object_subtype = shift @arg;
672	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	1114	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
673		1115
674	} elsif ($type eq "package") {	1116	} elsif ($type eq "package") {
675	my $pkg = shift @arg;	1117	my $pkg = shift @arg;
676		1118
677	while (my ($name, $id) = each %cb_id) {	1119	while (my ($name, $id) = each %cb_id) {
…		…
682		1124
683	} elsif (exists $cb_id{$type}) {	1125	} elsif (exists $cb_id{$type}) {
684	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1126	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
685		1127
686	} elsif (ref $type) {	1128	} elsif (ref $type) {
687	warn "attaching objects not supported, ignoring.\n";	1129	error "attaching objects not supported, ignoring.\n";
688		1130
689	} else {	1131	} else {
690	shift @arg;	1132	shift @arg;
691	warn "attach argument '$type' not supported, ignoring.\n";	1133	error "attach argument '$type' not supported, ignoring.\n";
692	}	1134	}
693	}	1135	}
694	}	1136	}
695		1137
696	sub _object_attach {	1138	sub _object_attach {
…		…
706	_attach $registry, $klass, @attach;	1148	_attach $registry, $klass, @attach;
707	}	1149	}
708		1150
709	$obj->{$name} = \%arg;	1151	$obj->{$name} = \%arg;
710	} else {	1152	} else {
711	warn "object uses attachment '$name' that is not available, postponing.\n";	1153	info "object uses attachment '$name' which is not available, postponing.\n";
712	}	1154	}
713		1155
714	$obj->{_attachment}{$name} = undef;	1156	$obj->{_attachment}{$name} = undef;
715	}	1157	}
716		1158
…		…
718	if (ref $_[0]) {	1160	if (ref $_[0]) {
719	_object_attach @_;	1161	_object_attach @_;
720	} else {	1162	} else {
721	_attach shift->_attach_registry, @_;	1163	_attach shift->_attach_registry, @_;
722	}	1164	}
		1165	_recalc_want;
723	};	1166	};
724		1167
725	# all those should be optimised	1168	# all those should be optimised
726	sub cf::attachable::detach {	1169	sub cf::attachable::detach {
727	my ($obj, $name) = @_;	1170	my ($obj, $name) = @_;
…		…
730	delete $obj->{_attachment}{$name};	1173	delete $obj->{_attachment}{$name};
731	reattach ($obj);	1174	reattach ($obj);
732	} else {	1175	} else {
733	Carp::croak "cannot, currently, detach class attachments";	1176	Carp::croak "cannot, currently, detach class attachments";
734	}	1177	}
		1178	_recalc_want;
735	};	1179	};
736		1180
737	sub cf::attachable::attached {	1181	sub cf::attachable::attached {
738	my ($obj, $name) = @_;	1182	my ($obj, $name) = @_;
739		1183
…		…
754	";	1198	";
755	die if $@;	1199	die if $@;
756	}	1200	}
757		1201
758	our $override;	1202	our $override;
759	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1203	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
760		1204
761	sub override {	1205	sub override {
762	$override = 1;	1206	$override = 1;
763	@invoke_results = ();	1207	@INVOKE_RESULTS = (@_);
764	}	1208	}
765		1209
766	sub do_invoke {	1210	sub do_invoke {
767	my $event = shift;	1211	my $event = shift;
768	my $callbacks = shift;	1212	my $callbacks = shift;
769		1213
770	@invoke_results = ();	1214	@INVOKE_RESULTS = ();
771		1215
772	local $override;	1216	local $override;
773		1217
774	for (@$callbacks) {	1218	for (@$callbacks) {
775	eval { &{$_->[1]} };	1219	eval { &{$_->[1]} };
776		1220
777	if ($@) {	1221	if ($@) {
778	warn "$@";
779	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1222	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
780	override;	1223	override;
781	}	1224	}
782		1225
783	return 1 if $override;	1226	return 1 if $override;
784	}	1227	}
785		1228
786	0	1229	0
787	}	1230	}
788		1231
789	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1232	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
790		1233
791	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1234	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
792		1235
793	Generate an object-specific event with the given arguments.	1236	Generate an object-specific event with the given arguments.
794		1237
795	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1238	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
796	removed in future versions), and there is no public API to access override	1239	removed in future versions), and there is no public API to access override
797	results (if you must, access C<@cf::invoke_results> directly).	1240	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
798		1241
799	=back	1242	=back
800		1243
801	=cut	1244	=cut
802		1245
803	#############################################################################	1246	#############################################################################
804	# object support	1247	# object support
		1248
		1249	sub _object_equal($$);
		1250	sub _object_equal($$) {
		1251	my ($a, $b) = @_;
		1252
		1253	return 0 unless (ref $a) eq (ref $b);
		1254
		1255	if ("HASH" eq ref $a) {
		1256	my @ka = keys %$a;
		1257	my @kb = keys %$b;
		1258
		1259	return 0 if @ka != @kb;
		1260
		1261	for (0 .. $#ka) {
		1262	return 0 unless $ka[$_] eq $kb[$_];
		1263	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1264	}
		1265
		1266	} elsif ("ARRAY" eq ref $a) {
		1267
		1268	return 0 if @$a != @$b;
		1269
		1270	for (0 .. $#$a) {
		1271	return 0 unless _object_equal $a->[$_], $b->[$_];
		1272	}
		1273
		1274	} elsif ($a ne $b) {
		1275	return 0;
		1276	}
		1277
		1278	1
		1279	}
		1280
		1281	our $SLOW_MERGES;#d#
		1282	sub _can_merge {
		1283	my ($ob1, $ob2) = @_;
		1284
		1285	++$SLOW_MERGES;#d#
		1286
		1287	# we do the slow way here
		1288	return _object_equal $ob1, $ob2
		1289	}
805		1290
806	sub reattach {	1291	sub reattach {
807	# basically do the same as instantiate, without calling instantiate	1292	# basically do the same as instantiate, without calling instantiate
808	my ($obj) = @_;	1293	my ($obj) = @_;
		1294
		1295	# no longer needed after getting rid of delete_package?
		1296	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
809		1297
810	my $registry = $obj->registry;	1298	my $registry = $obj->registry;
811		1299
812	@$registry = ();	1300	@$registry = ();
813		1301
…		…
818	for (@$attach) {	1306	for (@$attach) {
819	my ($klass, @attach) = @$_;	1307	my ($klass, @attach) = @$_;
820	_attach $registry, $klass, @attach;	1308	_attach $registry, $klass, @attach;
821	}	1309	}
822	} else {	1310	} else {
823	warn "object uses attachment '$name' that is not available, postponing.\n";	1311	info "object uses attachment '$name' that is not available, postponing.\n";
824	}	1312	}
825	}	1313	}
826	}	1314	}
827		1315
828	cf::attachable->attach (	1316	cf::attachable->attach (
829	prio => -1000000,	1317	prio => -1000000,
830	on_instantiate => sub {	1318	on_instantiate => sub {
831	my ($obj, $data) = @_;	1319	my ($obj, $data) = @_;
832		1320
833	$data = from_json $data;	1321	$data = decode_json $data;
834		1322
835	for (@$data) {	1323	for (@$data) {
836	my ($name, $args) = @$_;	1324	my ($name, $args) = @$_;
837		1325
838	$obj->attach ($name, %{$args || {} });	1326	$obj->attach ($name, %{$args || {} });
…		…
854	sub object_freezer_save {	1342	sub object_freezer_save {
855	my ($filename, $rdata, $objs) = @_;	1343	my ($filename, $rdata, $objs) = @_;
856		1344
857	sync_job {	1345	sync_job {
858	if (length $$rdata) {	1346	if (length $$rdata) {
		1347	utf8::decode (my $decname = $filename);
859	warn sprintf "saving %s (%d,%d)\n",	1348	trace sprintf "saving %s (%d,%d)\n",
860	$filename, length $$rdata, scalar @$objs;	1349	$decname, length $$rdata, scalar @$objs
		1350	if $VERBOSE_IO;
861		1351
862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1352	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
863	chmod SAVE_MODE, $fh;	1353	aio_chmod $fh, SAVE_MODE;
864	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1354	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1355	if ($cf::USE_FSYNC) {
		1356	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
865	aio_fsync $fh;	1357	aio_fsync $fh;
		1358	}
866	close $fh;	1359	aio_close $fh;
867		1360
868	if (@$objs) {	1361	if (@$objs) {
869	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1362	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
870	chmod SAVE_MODE, $fh;	1363	aio_chmod $fh, SAVE_MODE;
871	my $data = Storable::nfreeze { version => 1, objs => $objs };	1364	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
872	aio_write $fh, 0, (length $data), $data, 0;	1365	aio_write $fh, 0, (length $data), $data, 0;
		1366	if ($cf::USE_FSYNC) {
		1367	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
873	aio_fsync $fh;	1368	aio_fsync $fh;
		1369	}
874	close $fh;	1370	aio_close $fh;
875	aio_rename "$filename.pst~", "$filename.pst";	1371	aio_rename "$filename.pst~", "$filename.pst";
876	}	1372	}
877	} else {	1373	} else {
878	aio_unlink "$filename.pst";	1374	aio_unlink "$filename.pst";
879	}	1375	}
880		1376
881	aio_rename "$filename~", $filename;	1377	aio_rename "$filename~", $filename;
		1378
		1379	$filename =~ s%/[^/]+$%%;
		1380	aio_pathsync $filename if $cf::USE_FSYNC;
882	} else {	1381	} else {
883	warn "FATAL: $filename~: $!\n";	1382	error "unable to save objects: $filename~: $!\n";
884	}	1383	}
885	} else {	1384	} else {
886	aio_unlink $filename;	1385	aio_unlink $filename;
887	aio_unlink "$filename.pst";	1386	aio_unlink "$filename.pst";
888	}	1387	}
889	}	1388	};
890	}	1389	}
891		1390
892	sub object_freezer_as_string {	1391	sub object_freezer_as_string {
893	my ($rdata, $objs) = @_;	1392	my ($rdata, $objs) = @_;
894		1393
…		…
906	or return;	1405	or return;
907		1406
908	unless (aio_stat "$filename.pst") {	1407	unless (aio_stat "$filename.pst") {
909	(aio_load "$filename.pst", $av) >= 0	1408	(aio_load "$filename.pst", $av) >= 0
910	or return;	1409	or return;
		1410
911	$av = eval { (Storable::thaw $av)->{objs} };	1411	my $st = eval { Coro::Storable::thaw $av };
		1412	$av = $st->{objs};
912	}	1413	}
913		1414
		1415	utf8::decode (my $decname = $filename);
914	warn sprintf "loading %s (%d)\n",	1416	trace sprintf "loading %s (%d,%d)\n",
915	$filename, length $data, scalar @{$av || []};#d#	1417	$decname, length $data, scalar @{$av || []}
		1418	if $VERBOSE_IO;
		1419
916	return ($data, $av);	1420	($data, $av)
917	}	1421	}
		1422
		1423	=head2 COMMAND CALLBACKS
		1424
		1425	=over 4
		1426
		1427	=cut
918		1428
919	#############################################################################	1429	#############################################################################
920	# command handling &c	1430	# command handling &c
921		1431
922	=item cf::register_command $name => \&callback($ob,$args);	1432	=item cf::register_command $name => \&callback($ob,$args);
…		…
935	push @{ $COMMAND{$name} }, [$caller, $cb];	1445	push @{ $COMMAND{$name} }, [$caller, $cb];
936	}	1446	}
937		1447
938	=item cf::register_extcmd $name => \&callback($pl,$packet);	1448	=item cf::register_extcmd $name => \&callback($pl,$packet);
939		1449
940	Register a callbackf ro execution when the client sends an extcmd packet.	1450	Register a callback for execution when the client sends an (synchronous)
		1451	extcmd packet. Ext commands will be processed in the order they are
		1452	received by the server, like other user commands. The first argument is
		1453	the logged-in player. Ext commands can only be processed after a player
		1454	has logged in successfully.
941		1455
942	If the callback returns something, it is sent back as if reply was being	1456	If the callback returns something, it is sent back as if reply was being
943	called.	1457	called.
944		1458
		1459	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1460
		1461	Register a callback for execution when the client sends an (asynchronous)
		1462	exticmd packet. Exti commands are processed by the server as soon as they
		1463	are received, i.e. out of order w.r.t. other commands. The first argument
		1464	is a client socket. Exti commands can be received anytime, even before
		1465	log-in.
		1466
		1467	If the callback returns something, it is sent back as if reply was being
		1468	called.
		1469
945	=cut	1470	=cut
946		1471
947	sub register_extcmd {	1472	sub register_extcmd {
948	my ($name, $cb) = @_;	1473	my ($name, $cb) = @_;
949		1474
950	my $caller = caller;
951	#warn "registering extcmd '$name' to '$caller'";
952
953	$EXTCMD{$name} = [$cb, $caller];	1475	$EXTCMD{$name} = $cb;
954	}	1476	}
		1477
		1478	sub register_exticmd {
		1479	my ($name, $cb) = @_;
		1480
		1481	$EXTICMD{$name} = $cb;
		1482	}
		1483
		1484	use File::Glob ();
955		1485
956	cf::player->attach (	1486	cf::player->attach (
957	on_command => sub {	1487	on_unknown_command => sub {
958	my ($pl, $name, $params) = @_;	1488	my ($pl, $name, $params) = @_;
959		1489
960	my $cb = $COMMAND{$name}	1490	my $cb = $COMMAND{$name}
961	or return;	1491	or return;
962		1492
…		…
967	cf::override;	1497	cf::override;
968	},	1498	},
969	on_extcmd => sub {	1499	on_extcmd => sub {
970	my ($pl, $buf) = @_;	1500	my ($pl, $buf) = @_;
971		1501
972	my $msg = eval { from_json $buf };	1502	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
973		1503
974	if (ref $msg) {	1504	if (ref $msg) {
		1505	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1506
		1507	my @reply;
		1508
975	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1509	if (my $cb = $EXTCMD{$type}) {
976	if (my %reply = $cb->[0]->($pl, $msg)) {	1510	@reply = $cb->($pl, @payload);
977	$pl->ext_reply ($msg->{msgid}, %reply);
978	}
979	}	1511	}
		1512
		1513	$pl->ext_reply ($reply, @reply)
		1514	if $reply;
		1515
980	} else {	1516	} else {
981	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1517	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
982	}	1518	}
983		1519
984	cf::override;	1520	cf::override;
985	},	1521	},
986	);	1522	);
987		1523
988	sub register {	1524	# "readahead" all extensions
989	my ($base, $pkg) = @_;
990
991	#TODO
992	}
993
994	sub load_extension {	1525	sub cache_extensions {
995	my ($path) = @_;	1526	my $grp = IO::AIO::aio_group;
996		1527
997	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1528	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
998	my $base = $1;	1529	for (grep /\.ext$/, @{$_[0]}) {
999	my $pkg = $1;	1530	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	}	1531	}
1047	}	1532	};
1048		1533
1049	# remove extcmds	1534	$grp
1050	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {	1535	}
1051	delete $EXTCMD{$name};
1052	}
1053		1536
1054	if (my $cb = $pkg->can ("unload")) {	1537	sub _ext_cfg_reg($$$$) {
1055	eval {	1538	my ($rvar, $varname, $cfgname, $default) = @_;
1056	$cb->($pkg);
1057	1
1058	} or warn "$pkg unloaded, but with errors: $@";
1059	}
1060		1539
1061	Symbol::delete_package $pkg;	1540	$cfgname = lc $varname
		1541	unless length $cfgname;
		1542
		1543	$EXT_CFG{$cfgname} = [$rvar, $default];
		1544
		1545	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
1062	}	1546	}
1063		1547
1064	sub load_extensions {	1548	sub load_extensions {
		1549	info "loading extensions...";
		1550
		1551	%EXT_CFG = ();
		1552
		1553	cf::sync_job {
		1554	my %todo;
		1555
1065	for my $ext (<$LIBDIR/*.ext>) {	1556	for my $path (<$LIBDIR/*.ext>) {
1066	next unless -r $ext;	1557	next unless -r $path;
1067	eval {	1558
1068	load_extension $ext;	1559	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1560	my $base = $1;
		1561	my $pkg = $1;
		1562	$pkg =~ s/[^[:word:]]/_/g;
		1563	$pkg = "ext::$pkg";
		1564
		1565	open my $fh, "<:utf8", $path
		1566	or die "$path: $!";
		1567
		1568	my $source = do { local $/; <$fh> };
		1569
		1570	my %ext = (
		1571	path => $path,
		1572	base => $base,
		1573	pkg => $pkg,
		1574	);
		1575
		1576	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1577	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1578
		1579	$ext{source} =
		1580	"package $pkg; use common::sense;\n"
		1581	. "#line 1 \"$path\"\n{\n"
		1582	. $source
		1583	. "\n};\n1";
		1584
		1585	$todo{$base} = \%ext;
		1586	}
		1587
		1588	my $pass = 0;
		1589	my %done;
		1590	while (%todo) {
		1591	my $progress;
		1592
		1593	++$pass;
		1594
		1595	ext:
		1596	while (my ($k, $v) = each %todo) {
		1597	for (split /,\s*/, $v->{meta}{depends}) {
		1598	next ext
		1599	unless exists $done{$_};
		1600	}
		1601
		1602	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1603
		1604	my $source = $v->{source};
		1605
		1606	# support "CONF varname :confname = default" pseudo-statements
		1607	$source =~ s{
		1608	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1609	}{
		1610	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1611	}gmxe;
		1612
		1613	my $active = eval $source;
		1614
		1615	if (length $@) {
		1616	error "$v->{path}: $@\n";
		1617
		1618	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1619	if exists $v->{meta}{mandatory};
		1620
		1621	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1622	delete $todo{$k};
		1623	} else {
		1624	$done{$k} = delete $todo{$k};
		1625	push @EXTS, $v->{pkg};
		1626	$progress = 1;
		1627
		1628	info "$v->{base}: extension inactive.\n"
		1629	unless $active;
		1630	}
1069	1	1631	}
1070	} or warn "$ext not loaded: $@";	1632
		1633	unless ($progress) {
		1634	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1635
		1636	while (my ($k, $v) = each %todo) {
		1637	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1638	if exists $v->{meta}{mandatory};
		1639	}
		1640
		1641	last;
		1642	}
		1643	}
1071	}	1644	};
1072	}	1645	}
1073		1646
1074	#############################################################################	1647	#############################################################################
1075	# load/save/clean perl data associated with a map
1076		1648
1077	*cf::mapsupport::on_clean = sub {	1649	=back
1078	my ($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		1650
1090	=head2 CORE EXTENSIONS	1651	=head2 CORE EXTENSIONS
1091		1652
1092	Functions and methods that extend core crossfire objects.	1653	Functions and methods that extend core deliantra objects.
1093		1654
1094	=cut	1655	=cut
1095		1656
1096	package cf::player;	1657	package cf::player;
1097		1658
…		…
1099		1660
1100	=head3 cf::player	1661	=head3 cf::player
1101		1662
1102	=over 4	1663	=over 4
1103		1664
		1665	=item cf::player::num_playing
		1666
		1667	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1668
		1669	=cut
		1670
		1671	sub num_playing {
		1672	scalar grep
		1673	$_->ob->map
		1674	&& !$_->hidden
		1675	&& !$_->ob->flag (cf::FLAG_WIZ),
		1676	cf::player::list
		1677	}
		1678
1104	=item cf::player::find $login	1679	=item cf::player::find $login
1105		1680
1106	Returns the given player object, loading it if necessary (might block).	1681	Returns the given player object, loading it if necessary (might block).
1107		1682
1108	=cut	1683	=cut
1109		1684
1110	sub playerdir($) {	1685	sub playerdir($) {
1111	cf::localdir	1686	"$PLAYERDIR/"
1112	. "/"
1113	. cf::playerdir
1114	. "/"
1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1687	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1116	}	1688	}
1117		1689
1118	sub path($) {	1690	sub path($) {
1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1691	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1120		1692
1121	(playerdir $login) . "/$login.pl"	1693	(playerdir $login) . "/playerdata"
1122	}	1694	}
1123		1695
1124	sub find_active($) {	1696	sub find_active($) {
1125	$cf::PLAYER{$_[0]}	1697	$cf::PLAYER{$_[0]}
1126	and $cf::PLAYER{$_[0]}->active	1698	and $cf::PLAYER{$_[0]}->active
…		…
1129		1701
1130	sub exists($) {	1702	sub exists($) {
1131	my ($login) = @_;	1703	my ($login) = @_;
1132		1704
1133	$cf::PLAYER{$login}	1705	$cf::PLAYER{$login}
1134	or cf::sync_job { !aio_stat $login }	1706	or !aio_stat path $login
1135	}	1707	}
1136		1708
1137	sub find($) {	1709	sub find($) {
1138	return $cf::PLAYER{$_[0]} || do {	1710	return $cf::PLAYER{$_[0]} || do {
1139	my $login = $_[0];	1711	my $login = $_[0];
1140		1712
1141	my $guard = cf::lock_acquire "user_find:$login";	1713	my $guard = cf::lock_acquire "user_find:$login";
1142		1714
1143	$cf::PLAYER{$_[0]} || do {	1715	$cf::PLAYER{$_[0]} || do {
1144	my $pl = load_pl path $login	1716	# rename old playerfiles to new ones
		1717	#TODO: remove when no longer required
		1718	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1719	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1720	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1721	aio_unlink +(playerdir $login) . "/$login.pl";
		1722
		1723	my $f = new_from_file cf::object::thawer path $login
1145	or return;	1724	or return;
		1725
		1726	my $pl = cf::player::load_pl $f
		1727	or return;
		1728
		1729	local $cf::PLAYER_LOADING{$login} = $pl;
		1730	$f->resolve_delayed_derefs;
1146	$cf::PLAYER{$login} = $pl	1731	$cf::PLAYER{$login} = $pl
1147	}	1732	}
1148	}	1733	}
1149	}	1734	}
		1735
		1736	cf::player->attach (
		1737	on_load => sub {
		1738	my ($pl, $path) = @_;
		1739
		1740	# restore slots saved in save, below
		1741	my $slots = delete $pl->{_slots};
		1742
		1743	$pl->ob->current_weapon ($slots->[0]);
		1744	$pl->combat_ob ($slots->[1]);
		1745	$pl->ranged_ob ($slots->[2]);
		1746	},
		1747	);
1150		1748
1151	sub save($) {	1749	sub save($) {
1152	my ($pl) = @_;	1750	my ($pl) = @_;
1153		1751
1154	return if $pl->{deny_save};	1752	return if $pl->{deny_save};
…		…
1159	return if $pl->{deny_save};	1757	return if $pl->{deny_save};
1160		1758
1161	aio_mkdir playerdir $pl, 0770;	1759	aio_mkdir playerdir $pl, 0770;
1162	$pl->{last_save} = $cf::RUNTIME;	1760	$pl->{last_save} = $cf::RUNTIME;
1163		1761
		1762	cf::get_slot 0.01;
		1763
		1764	# save slots, to be restored later
		1765	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1766
1164	$pl->save_pl ($path);	1767	$pl->save_pl ($path);
1165	Coro::cede;	1768	cf::cede_to_tick;
1166	}	1769	}
1167		1770
1168	sub new($) {	1771	sub new($) {
1169	my ($login) = @_;	1772	my ($login) = @_;
1170		1773
…		…
1176	$cf::PLAYER{$login} = $self;	1779	$cf::PLAYER{$login} = $self;
1177		1780
1178	$self	1781	$self
1179	}	1782	}
1180		1783
		1784	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1785
		1786	=cut
		1787
		1788	sub send_msg {
		1789	my $ns = shift->ns
		1790	or return;
		1791	$ns->send_msg (@_);
		1792	}
		1793
1181	=item $pl->quit_character	1794	=item $pl->quit_character
1182		1795
1183	Nukes the player without looking back. If logged in, the connection will	1796	Nukes the player without looking back. If logged in, the connection will
1184	be destroyed. May block for a long time.	1797	be destroyed. May block for a long time.
1185		1798
1186	=cut	1799	=cut
1187		1800
1188	sub quit_character {	1801	sub quit_character {
1189	my ($pl) = @_;	1802	my ($pl) = @_;
1190		1803
		1804	my $name = $pl->ob->name;
		1805
1191	$pl->{deny_save} = 1;	1806	$pl->{deny_save} = 1;
1192	$pl->password ("*"); # this should lock out the player until we nuked the dir	1807	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1193		1808
1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1809	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1195	$pl->deactivate;	1810	$pl->deactivate;
		1811
		1812	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1196	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1813	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1814	ext::highscore::check ($pl->ob);
		1815
1197	$pl->ns->destroy if $pl->ns;	1816	$pl->ns->destroy if $pl->ns;
1198		1817
1199	my $path = playerdir $pl;	1818	my $path = playerdir $pl;
1200	my $temp = "$path~$cf::RUNTIME~deleting~";	1819	my $temp = "$path~$cf::RUNTIME~deleting~";
1201	aio_rename $path, $temp;	1820	aio_rename $path, $temp;
1202	delete $cf::PLAYER{$pl->ob->name};	1821	delete $cf::PLAYER{$pl->ob->name};
1203	$pl->destroy;	1822	$pl->destroy;
		1823
		1824	my $prefix = qr<^~\Q$name\E/>;
		1825
		1826	# nuke player maps
		1827	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1828
1204	IO::AIO::aio_rmtree $temp;	1829	IO::AIO::aio_rmtree $temp;
		1830	}
		1831
		1832	=item $pl->kick
		1833
		1834	Kicks a player out of the game. This destroys the connection.
		1835
		1836	=cut
		1837
		1838	sub kick {
		1839	my ($pl, $kicker) = @_;
		1840
		1841	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1842	$pl->killer ("kicked");
		1843	$pl->ns->destroy;
1205	}	1844	}
1206		1845
1207	=item cf::player::list_logins	1846	=item cf::player::list_logins
1208		1847
1209	Returns am arrayref of all valid playernames in the system, can take a	1848	Returns am arrayref of all valid playernames in the system, can take a
1210	while and may block, so not sync_job-capable, ever.	1849	while and may block, so not sync_job-capable, ever.
1211		1850
1212	=cut	1851	=cut
1213		1852
1214	sub list_logins {	1853	sub list_logins {
1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1854	my $dirs = aio_readdir $PLAYERDIR
1216	or return [];	1855	or return [];
1217		1856
1218	my @logins;	1857	my @logins;
1219		1858
1220	for my $login (@$dirs) {	1859	for my $login (@$dirs) {
		1860	my $path = path $login;
		1861
		1862	# a .pst is a dead give-away for a valid player
		1863	# if no pst file found, open and chekc for blocked users
		1864	if (aio_stat "$path.pst") {
1221	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1865	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1222	aio_read $fh, 0, 512, my $buf, 0 or next;	1866	aio_read $fh, 0, 512, my $buf, 0 or next;
1223	$buf !~ /^password -------------$/m or next; # official not-valid tag	1867	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1868	}
1224		1869
1225	utf8::decode $login;	1870	utf8::decode $login;
1226	push @logins, $login;	1871	push @logins, $login;
1227	}	1872	}
1228		1873
1229	\@logins	1874	\@logins
1230	}	1875	}
1231		1876
1232	=item $player->maps	1877	=item $player->maps
1233		1878
		1879	=item cf::player::maps $login
		1880
1234	Returns an arrayref of cf::path's of all maps that are private for this	1881	Returns an arrayref of map paths that are private for this
1235	player. May block.	1882	player. May block.
1236		1883
1237	=cut	1884	=cut
1238		1885
1239	sub maps($) {	1886	sub maps($) {
1240	my ($pl) = @_;	1887	my ($pl) = @_;
		1888
		1889	$pl = ref $pl ? $pl->ob->name : $pl;
1241		1890
1242	my $files = aio_readdir playerdir $pl	1891	my $files = aio_readdir playerdir $pl
1243	or return;	1892	or return;
1244		1893
1245	my @paths;	1894	my @paths;
…		…
1247	for (@$files) {	1896	for (@$files) {
1248	utf8::decode $_;	1897	utf8::decode $_;
1249	next if /\.(?:pl|pst)$/;	1898	next if /\.(?:pl|pst)$/;
1250	next unless /^$PATH_SEP/o;	1899	next unless /^$PATH_SEP/o;
1251		1900
1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1901	push @paths, cf::map::normalise "~$pl/$_";
1253	}	1902	}
1254		1903
1255	\@paths	1904	\@paths
1256	}	1905	}
1257		1906
		1907	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1908
		1909	Expand deliantra pod fragments into protocol xml.
		1910
1258	=item $player->ext_reply ($msgid, $msgtype, %msg)	1911	=item $player->ext_reply ($msgid, @msg)
1259		1912
1260	Sends an ext reply to the player.	1913	Sends an ext reply to the player.
1261		1914
1262	=cut	1915	=cut
1263		1916
1264	sub ext_reply($$$%) {	1917	sub ext_reply($$@) {
1265	my ($self, $id, %msg) = @_;	1918	my ($self, $id, @msg) = @_;
1266		1919
1267	$msg{msgid} = $id;	1920	$self->ns->ext_reply ($id, @msg)
1268
1269	$self->send ("ext " . cf::to_json \%msg);
1270	}	1921	}
1271		1922
1272	package cf;	1923	=item $player->ext_msg ($type, @msg)
		1924
		1925	Sends an ext event to the client.
		1926
		1927	=cut
		1928
		1929	sub ext_msg($$@) {
		1930	my ($self, $type, @msg) = @_;
		1931
		1932	$self->ns->ext_msg ($type, @msg);
		1933	}
		1934
		1935	=head3 cf::region
		1936
		1937	=over 4
		1938
		1939	=cut
		1940
		1941	package cf::region;
		1942
		1943	=item cf::region::find_by_path $path
		1944
		1945	Tries to decuce the likely region for a map knowing only its path.
		1946
		1947	=cut
		1948
		1949	sub find_by_path($) {
		1950	my ($path) = @_;
		1951
		1952	$path =~ s/^~[^\/]*//; # skip ~login
		1953
		1954	my ($match, $specificity);
		1955
		1956	for my $region (list) {
		1957	if ($region->{match} && $path =~ $region->{match}) {
		1958	($match, $specificity) = ($region, $region->specificity)
		1959	if $region->specificity > $specificity;
		1960	}
		1961	}
		1962
		1963	$match
		1964	}
1273		1965
1274	=back	1966	=back
1275
1276		1967
1277	=head3 cf::map	1968	=head3 cf::map
1278		1969
1279	=over 4	1970	=over 4
1280		1971
…		…
1283	package cf::map;	1974	package cf::map;
1284		1975
1285	use Fcntl;	1976	use Fcntl;
1286	use Coro::AIO;	1977	use Coro::AIO;
1287		1978
		1979	use overload
		1980	'""' => \&as_string,
		1981	fallback => 1;
		1982
1288	our $MAX_RESET = 3600;	1983	our $MAX_RESET = 3600;
1289	our $DEFAULT_RESET = 3000;	1984	our $DEFAULT_RESET = 3000;
1290		1985
1291	sub generate_random_map {	1986	sub generate_random_map {
		1987	my ($self, $rmp) = @_;
		1988
		1989	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1990
		1991	$self->_create_random_map ($rmp);
		1992	}
		1993
		1994	=item cf::map->register ($regex, $prio)
		1995
		1996	Register a handler for the map path matching the given regex at the
		1997	givne priority (higher is better, built-in handlers have priority 0, the
		1998	default).
		1999
		2000	=cut
		2001
		2002	sub register {
		2003	my (undef, $regex, $prio) = @_;
		2004	my $pkg = caller;
		2005
		2006	push @{"$pkg\::ISA"}, __PACKAGE__;
		2007
		2008	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		2009	}
		2010
		2011	# also paths starting with '/'
		2012	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		2013
		2014	sub thawer_merge {
		2015	my ($self, $merge) = @_;
		2016
		2017	# we have to keep some variables in memory intact
		2018	local $self->{path};
		2019	local $self->{load_path};
		2020
		2021	$self->SUPER::thawer_merge ($merge);
		2022	}
		2023
		2024	sub normalise {
1292	my ($path, $rmp) = @_;	2025	my ($path, $base) = @_;
1293		2026
1294	# mit "rum" bekleckern, nicht	2027	$path = "$path"; # make sure it's a string
1295	cf::map::_create_random_map	2028
		2029	$path =~ s/\.map$//;
		2030
		2031	# map plan:
		2032	#
		2033	# /! non-realised random map exit (special hack!)
		2034	# {... are special paths that are not being touched
		2035	# ?xxx/... are special absolute paths
		2036	# ?random/... random maps
		2037	# /... normal maps
		2038	# ~user/... per-player map of a specific user
		2039
		2040	$path =~ s/$PATH_SEP/\//go;
		2041
		2042	# treat it as relative path if it starts with
		2043	# something that looks reasonable
		2044	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		2045	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		2046
		2047	$base =~ s{[^/]+/?$}{};
		2048	$path = "$base/$path";
		2049	}
		2050
		2051	for ($path) {
		2052	redo if s{/\.?/}{/};
		2053	redo if s{/[^/]+/\.\./}{/};
		2054	}
		2055
1296	$path,	2056	$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	}	2057	}
1309		2058
1310	# and all this just because we cannot iterate over	2059	sub new_from_path {
1311	# all maps in C++...	2060	my (undef, $path, $base) = @_;
1312	sub change_all_map_light {	2061
		2062	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		2063
		2064	$path = normalise $path, $base;
		2065
		2066	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		2067	if ($path =~ $EXT_MAP{$pkg}[1]) {
		2068	my $self = bless cf::map::new, $pkg;
		2069	$self->{path} = $path; $self->path ($path);
		2070	$self->init; # pass $1 etc.
		2071	return $self;
		2072	}
		2073	}
		2074
		2075	Carp::cluck "unable to resolve path '$path' (base '$base')";
		2076	()
		2077	}
		2078
		2079	# may re-bless or do other evil things
		2080	sub init {
1313	my ($change) = @_;	2081	my ($self) = @_;
1314		2082
1315	$_->change_map_light ($change)	2083	$self
1316	for grep $_->outdoor, values %cf::MAP;
1317	}	2084	}
1318		2085
		2086	sub as_string {
		2087	my ($self) = @_;
		2088
		2089	"$self->{path}"
		2090	}
		2091
		2092	# the displayed name, this is a one way mapping
		2093	sub visible_name {
		2094	&as_string
		2095	}
		2096
		2097	# the original (read-only) location
		2098	sub load_path {
		2099	my ($self) = @_;
		2100
		2101	"$MAPDIR/$self->{path}.map"
		2102	}
		2103
		2104	# the temporary/swap location
		2105	sub save_path {
		2106	my ($self) = @_;
		2107
		2108	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2109	"$TMPDIR/$path.map"
		2110	}
		2111
		2112	# the unique path, undef == no special unique path
		2113	sub uniq_path {
		2114	my ($self) = @_;
		2115
		2116	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		2117	"$UNIQUEDIR/$path"
		2118	}
		2119
		2120	sub decay_objects {
		2121	my ($self) = @_;
		2122
		2123	return if $self->{deny_reset};
		2124
		2125	$self->do_decay_objects;
		2126	}
		2127
		2128	sub unlink_save {
		2129	my ($self) = @_;
		2130
		2131	utf8::encode (my $save = $self->save_path);
		2132	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		2133	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		2134	}
		2135
1319	sub try_load_header($) {	2136	sub load_header_from($) {
1320	my ($path) = @_;	2137	my ($self, $path) = @_;
1321		2138
1322	utf8::encode $path;	2139	utf8::encode $path;
1323	aio_open $path, O_RDONLY, 0	2140	my $f = new_from_file cf::object::thawer $path
1324	or return;	2141	or return;
1325		2142
1326	my $map = cf::map::new	2143	$self->_load_header ($f)
1327	or return;	2144	or return;
1328		2145
1329	# for better error messages only, will be overwritten	2146	local $MAP_LOADING{$self->{path}} = $self;
1330	$map->path ($path);	2147	$f->resolve_delayed_derefs;
1331		2148
1332	$map->load_header ($path)	2149	$self->{load_path} = $path;
		2150
		2151	1
		2152	}
		2153
		2154	# used to laod the header of an original map
		2155	sub load_header_orig {
		2156	my ($self) = @_;
		2157
		2158	$self->load_header_from ($self->load_path)
		2159	}
		2160
		2161	# used to laod the header of an instantiated map
		2162	sub load_header_temp {
		2163	my ($self) = @_;
		2164
		2165	$self->load_header_from ($self->save_path)
		2166	}
		2167
		2168	# called after loading the header from an instantiated map
		2169	sub prepare_temp {
		2170	my ($self) = @_;
		2171
		2172	$self->last_access ((delete $self->{last_access})
		2173	|| $cf::RUNTIME); #d#
		2174	# safety
		2175	$self->{instantiate_time} = $cf::RUNTIME
		2176	if $self->{instantiate_time} > $cf::RUNTIME;
		2177	}
		2178
		2179	# called after loading the header from an original map
		2180	sub prepare_orig {
		2181	my ($self) = @_;
		2182
		2183	$self->{load_original} = 1;
		2184	$self->{instantiate_time} = $cf::RUNTIME;
		2185	$self->last_access ($cf::RUNTIME);
		2186	$self->instantiate;
		2187	}
		2188
		2189	sub load_header {
		2190	my ($self) = @_;
		2191
		2192	if ($self->load_header_temp) {
		2193	$self->prepare_temp;
		2194	} else {
		2195	$self->load_header_orig
1333	or return;	2196	or return;
		2197	$self->prepare_orig;
		2198	}
1334		2199
1335	$map->{load_path} = $path;	2200	$self->{deny_reset} = 1
		2201	if $self->no_reset;
1336		2202
1337	$map	2203	$self->default_region (cf::region::find_by_path $self->{path})
		2204	unless $self->default_region;
		2205
		2206	1
1338	}	2207	}
1339		2208
1340	sub find;	2209	sub find;
1341	sub find {	2210	sub find {
1342	my ($path, $origin) = @_;	2211	my ($path, $origin) = @_;
1343		2212
1344	#warn "find<$path,$origin>\n";#d#	2213	cf::cede_to_tick;
1345		2214
1346	$path = new cf::path $path, $origin && $origin->path;	2215	$path = normalise $path, $origin;
1347	my $key = $path->as_string;
1348		2216
1349	cf::lock_wait "map_find:$key";	2217	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";	2218	my $guard2 = cf::lock_acquire "map_find:$path";
1353		2219
1354	# do it the slow way	2220	$cf::MAP{$path} || do {
1355	my $map = try_load_header $path->save_path;	2221	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;	2222	or return;
1373		2223
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;	2224	$map->{last_save} = $cf::RUNTIME;
1386		2225
1387	Coro::cede;	2226	$map->load_header
		2227	or return;
1388		2228
1389	if ($map->should_reset) {	2229	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2230	# doing this can freeze the server in a sync job, obviously
		2231	#$cf::WAIT_FOR_TICK->wait;
		2232	undef $guard2;
		2233	undef $guard1;
1390	$map->reset;	2234	$map->reset;
1391	undef $guard;
1392	$map = find $path	2235	return find $path;
1393	or return;
1394	}	2236	}
1395		2237
1396	$cf::MAP{$key} = $map	2238	$cf::MAP{$path} = $map
1397	}	2239	}
1398	}	2240	}
		2241
		2242	sub pre_load { }
		2243	#sub post_load { } # XS
1399		2244
1400	sub load {	2245	sub load {
1401	my ($self) = @_;	2246	my ($self) = @_;
1402		2247
		2248	local $self->{deny_reset} = 1; # loading can take a long time
		2249
1403	my $path = $self->{path};	2250	my $path = $self->{path};
		2251
		2252	{
1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2253	my $guard = cf::lock_acquire "map_data:$path";
1405		2254
1406	return if $self->in_memory != cf::MAP_SWAPPED;	2255	return unless $self->valid;
		2256	return unless $self->state == cf::MAP_SWAPPED;
1407		2257
1408	$self->in_memory (cf::MAP_LOADING);
1409
1410	$self->alloc;	2258	$self->alloc;
1411	$self->load_objects ($self->{load_path}, 1)	2259
		2260	$self->pre_load;
		2261	cf::cede_to_tick;
		2262
		2263	if (exists $self->{load_path}) {
		2264	my $f = new_from_file cf::object::thawer $self->{load_path};
		2265	$f->skip_block;
		2266	$self->_load_objects ($f)
1412	or return;	2267	or return;
1413		2268
1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2269	$self->post_load_original
1415	if delete $self->{load_original};	2270	if delete $self->{load_original};
1416		2271
1417	if (my $uniq = $path->uniq_path) {	2272	if (my $uniq = $self->uniq_path) {
1418	utf8::encode $uniq;	2273	utf8::encode $uniq;
1419	if (aio_open $uniq, O_RDONLY, 0) {	2274	unless (aio_stat $uniq) {
		2275	if (my $f = new_from_file cf::object::thawer $uniq) {
1420	$self->clear_unique_items;	2276	$self->clear_unique_items;
1421	$self->load_objects ($uniq, 0);	2277	$self->_load_objects ($f);
		2278	$f->resolve_delayed_derefs;
		2279	}
		2280	}
1422	}	2281	}
1423	}
1424		2282
1425	Coro::cede;	2283	$f->resolve_delayed_derefs;
		2284	} else {
		2285	$self->post_load_original
		2286	if delete $self->{load_original};
		2287	}
1426		2288
		2289	$self->state (cf::MAP_INACTIVE);
		2290
		2291	cf::cede_to_tick;
1427	# now do the right thing for maps	2292	# now do the right thing for maps
1428	$self->link_multipart_objects;	2293	$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)	2294	$self->difficulty ($self->estimate_difficulty)
1439	unless $self->difficulty;	2295	unless $self->difficulty;
1440	$self->activate;	2296	cf::cede_to_tick;
		2297
		2298	unless ($self->{deny_activate}) {
		2299	$self->decay_objects;
		2300	$self->fix_auto_apply;
		2301	$self->update_buttons;
		2302	cf::cede_to_tick;
		2303	#$self->activate; # no longer activate maps automatically
		2304	}
		2305
		2306	$self->{last_save} = $cf::RUNTIME;
		2307	$self->last_access ($cf::RUNTIME);
		2308	}
		2309
		2310	$self->post_load;
		2311
1441	}	2312	1
1442
1443	Coro::cede;
1444
1445	$self->in_memory (cf::MAP_IN_MEMORY);
1446	}	2313	}
1447		2314
1448	# find and load all maps in the 3x3 area around a map	2315	# customize the map for a given player, i.e.
1449	sub load_diag {	2316	# return the _real_ map. used by e.g. per-player
1450	my ($map) = @_;	2317	# maps to change the path to ~playername/mappath
		2318	sub customise_for {
		2319	my ($self, $ob) = @_;
1451		2320
1452	my @diag; # diagonal neighbours	2321	return find "~" . $ob->name . "/" . $self->{path}
		2322	if $self->per_player;
1453		2323
1454	for (0 .. 3) {	2324	# return find "?party/" . $ob->name . "/" . $self->{path}
1455	my $neigh = $map->tile_path ($_)	2325	# if $self->per_party;
1456	or next;
1457	$neigh = find $neigh, $map
1458	or next;
1459	$neigh->load;
1460		2326
1461	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2327	$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	}	2328	}
1471		2329
1472	sub find_sync {	2330	sub find_sync {
1473	my ($path, $origin) = @_;	2331	my ($path, $origin) = @_;
1474		2332
1475	cf::sync_job { find $path, $origin }	2333	# it's a bug to call this from the main context
		2334	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2335	if $Coro::current == $Coro::main;
		2336
		2337	find $path, $origin
1476	}	2338	}
1477		2339
1478	sub do_load_sync {	2340	sub do_load_sync {
1479	my ($map) = @_;	2341	my ($map) = @_;
1480		2342
1481	cf::sync_job { $map->load };	2343	# it's a bug to call this from the main context
		2344	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2345	if $Coro::current == $Coro::main;
		2346
		2347	$map->load;
1482	}	2348	}
1483		2349
1484	our %MAP_PREFETCH;	2350	our %MAP_PREFETCH;
		2351	our $MAP_PREFETCHER = undef;
		2352
		2353	sub find_async {
		2354	my ($path, $origin, $load) = @_;
		2355
		2356	$path = normalise $path, $origin;
		2357
		2358	if (my $map = $cf::MAP{$path}) {
		2359	return $map if !$load || $map->linkable;
		2360	}
		2361
		2362	$MAP_PREFETCH{$path} |= $load;
		2363
1485	our $MAP_PREFETCHER = Coro::async {	2364	$MAP_PREFETCHER ||= cf::async {
1486	while () {	2365	$Coro::current->{desc} = "map prefetcher";
		2366
1487	while (%MAP_PREFETCH) {	2367	while (%MAP_PREFETCH) {
1488	my $key = each %MAP_PREFETCH	2368	while (my ($k, $v) = each %MAP_PREFETCH) {
1489	or next;	2369	if (my $map = find $k) {
		2370	$map->load if $v;
		2371	}
		2372
1490	my $path = delete $MAP_PREFETCH{$key};	2373	delete $MAP_PREFETCH{$k};
1491
1492	my $map = find $path
1493	or next;
1494	$map->load;
1495	}	2374	}
1496	Coro::schedule;	2375	}
		2376	undef $MAP_PREFETCHER;
1497	}	2377	};
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;	2378	$MAP_PREFETCHER->prio (6);
1512		2379
1513	()	2380	()
		2381	}
		2382
		2383	# common code, used by both ->save and ->swapout
		2384	sub _save {
		2385	my ($self) = @_;
		2386
		2387	$self->{last_save} = $cf::RUNTIME;
		2388
		2389	return unless $self->dirty;
		2390
		2391	my $save = $self->save_path; utf8::encode $save;
		2392	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2393
		2394	$self->{load_path} = $save;
		2395
		2396	return if $self->{deny_save};
		2397
		2398	local $self->{last_access} = $self->last_access;#d#
		2399
		2400	cf::async {
		2401	$Coro::current->{desc} = "map player save";
		2402	$_->contr->save for $self->players;
		2403	};
		2404
		2405	cf::get_slot 0.02;
		2406
		2407	if ($uniq) {
		2408	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2409	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2410	} else {
		2411	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
		2412	}
1514	}	2413	}
1515		2414
1516	sub save {	2415	sub save {
1517	my ($self) = @_;	2416	my ($self) = @_;
1518		2417
1519	my $lock = cf::lock_acquire "map_data:" . $self->path;	2418	my $lock = cf::lock_acquire "map_data:$self->{path}";
1520		2419
1521	$self->{last_save} = $cf::RUNTIME;	2420	$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	}	2421	}
1545		2422
1546	sub swap_out {	2423	sub swap_out {
1547	my ($self) = @_;	2424	my ($self) = @_;
1548		2425
1549	# save first because save cedes
1550	$self->save;
1551
1552	my $lock = cf::lock_acquire "map_data:" . $self->path;	2426	my $lock = cf::lock_acquire "map_data:$self->{path}";
1553		2427
		2428	return if !$self->linkable;
		2429	return if $self->{deny_save};
1554	return if $self->players;	2430	return if $self->players;
1555	return if $self->in_memory != cf::MAP_IN_MEMORY;
1556	return if $self->{deny_save};
1557		2431
		2432	# first deactivate the map and "unlink" it from the core
		2433	$self->deactivate;
		2434	$_->clear_links_to ($self) for values %cf::MAP;
		2435	$self->state (cf::MAP_SWAPPED);
		2436
		2437	# then atomically save
		2438	$self->_save;
		2439
		2440	# then free the map
1558	$self->clear;	2441	$self->clear;
1559	$self->in_memory (cf::MAP_SWAPPED);
1560	}	2442	}
1561		2443
1562	sub reset_at {	2444	sub reset_at {
1563	my ($self) = @_;	2445	my ($self) = @_;
1564		2446
1565	# TODO: safety, remove and allow resettable per-player maps	2447	# TODO: safety, remove and allow resettable per-player maps
1566	return 1e99 if $self->{path}{user_rel};
1567	return 1e99 if $self->{deny_reset};	2448	return 1e99 if $self->{deny_reset};
1568		2449
1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2450	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2451	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1571		2452
…		…
1576	my ($self) = @_;	2457	my ($self) = @_;
1577		2458
1578	$self->reset_at <= $cf::RUNTIME	2459	$self->reset_at <= $cf::RUNTIME
1579	}	2460	}
1580		2461
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 {	2462	sub reset {
1603	my ($self) = @_;	2463	my ($self) = @_;
1604		2464
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2465	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2466
1607	return if $self->players;	2467	return if $self->players;
1608	return if $self->{path}{user_rel};#d#
1609		2468
1610	warn "resetting map ", $self->path;#d#	2469	cf::trace "resetting map ", $self->path, "\n";
		2470
		2471	$self->state (cf::MAP_SWAPPED);
		2472
		2473	# need to save uniques path
		2474	unless ($self->{deny_save}) {
		2475	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2476
		2477	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2478	if $uniq;
		2479	}
1611		2480
1612	delete $cf::MAP{$self->path};	2481	delete $cf::MAP{$self->path};
1613		2482
		2483	$self->deactivate;
1614	$_->clear_links_to ($self) for values %cf::MAP;	2484	$_->clear_links_to ($self) for values %cf::MAP;
		2485	$self->clear;
1615		2486
1616	$self->unlink_save;	2487	$self->unlink_save;
1617	$self->destroy;	2488	$self->destroy;
1618	}	2489	}
1619		2490
1620	my $nuke_counter = "aaaa";	2491	my $nuke_counter = "aaaa";
1621		2492
1622	sub nuke {	2493	sub nuke {
1623	my ($self) = @_;	2494	my ($self) = @_;
1624		2495
		2496	{
		2497	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2498
		2499	delete $cf::MAP{$self->path};
		2500
		2501	$self->unlink_save;
		2502
		2503	bless $self, "cf::map::wrap";
		2504	delete $self->{deny_reset};
1625	$self->{deny_save} = 1;	2505	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2506	$self->reset_timeout (1);
1627	$self->rename ("{nuke}/" . ($nuke_counter++));	2507	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2508
		2509	$cf::MAP{$self->path} = $self;
		2510	}
		2511
1628	$self->reset; # polite request, might not happen	2512	$self->reset; # polite request, might not happen
1629	}	2513	}
1630		2514
1631	sub customise_for {	2515	=item $maps = cf::map::tmp_maps
1632	my ($map, $ob) = @_;
1633		2516
1634	if ($map->per_player) {	2517	Returns an arrayref with all map paths of currently instantiated and saved
1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2518	maps. May block.
		2519
		2520	=cut
		2521
		2522	sub tmp_maps() {
1636	}	2523	[
		2524	map {
		2525	utf8::decode $_;
		2526	/\.map$/
		2527	? normalise $_
		2528	: ()
		2529	} @{ aio_readdir $TMPDIR or [] }
		2530	]
		2531	}
1637		2532
1638	$map	2533	=item $maps = cf::map::random_maps
		2534
		2535	Returns an arrayref with all map paths of currently instantiated and saved
		2536	random maps. May block.
		2537
		2538	=cut
		2539
		2540	sub random_maps() {
		2541	[
		2542	map {
		2543	utf8::decode $_;
		2544	/\.map$/
		2545	? normalise "?random/$_"
		2546	: ()
		2547	} @{ aio_readdir $RANDOMDIR or [] }
		2548	]
1639	}	2549	}
1640		2550
1641	=item cf::map::unique_maps	2551	=item cf::map::unique_maps
1642		2552
1643	Returns an arrayref of cf::path's of all shared maps that have	2553	Returns an arrayref of paths of all shared maps that have
1644	instantiated unique items. May block.	2554	instantiated unique items. May block.
1645		2555
1646	=cut	2556	=cut
1647		2557
1648	sub unique_maps() {	2558	sub unique_maps() {
1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2559	[
1650	or return;	2560	map {
1651
1652	my @paths;
1653
1654	for (@$files) {
1655	utf8::decode $_;	2561	utf8::decode $_;
1656	next if /\.pst$/;	2562	s/\.map$//; # TODO future compatibility hack
1657	next unless /^$PATH_SEP/o;	2563	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1658		2564	? ()
1659	push @paths, new cf::path $_;	2565	: normalise $_
		2566	} @{ aio_readdir $UNIQUEDIR or [] }
1660	}	2567	]
1661
1662	\@paths
1663	}	2568	}
1664		2569
1665	package cf;	2570	=item cf::map::static_maps
		2571
		2572	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2573	file in the shared directory excluding F</styles> and F</editor>). May
		2574	block.
		2575
		2576	=cut
		2577
		2578	sub static_maps() {
		2579	my @dirs = "";
		2580	my @maps;
		2581
		2582	while (@dirs) {
		2583	my $dir = shift @dirs;
		2584
		2585	next if $dir eq "/styles" || $dir eq "/editor";
		2586
		2587	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2588	or return;
		2589
		2590	for (@$files) {
		2591	s/\.map$// or next;
		2592	utf8::decode $_;
		2593	push @maps, "$dir/$_";
		2594	}
		2595
		2596	push @dirs, map "$dir/$_", @$dirs;
		2597	}
		2598
		2599	\@maps
		2600	}
1666		2601
1667	=back	2602	=back
1668		2603
1669	=head3 cf::object	2604	=head3 cf::object
1670		2605
…		…
1674		2609
1675	=over 4	2610	=over 4
1676		2611
1677	=item $ob->inv_recursive	2612	=item $ob->inv_recursive
1678		2613
1679	Returns the inventory of the object _and_ their inventories, recursively.	2614	Returns the inventory of the object I<and> their inventories, recursively,
		2615	but I<not> the object itself.
1680		2616
1681	=cut	2617	=cut
1682		2618
1683	sub inv_recursive_;	2619	sub inv_recursive_;
1684	sub inv_recursive_ {	2620	sub inv_recursive_ {
…		…
1687		2623
1688	sub inv_recursive {	2624	sub inv_recursive {
1689	inv_recursive_ inv $_[0]	2625	inv_recursive_ inv $_[0]
1690	}	2626	}
1691		2627
		2628	=item $ref = $ob->ref
		2629
		2630	Creates and returns a persistent reference to an object that can be stored as a string.
		2631
		2632	=item $ob = cf::object::deref ($refstring)
		2633
		2634	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2635	even if the object actually exists. May block.
		2636
		2637	=cut
		2638
		2639	sub deref {
		2640	my ($ref) = @_;
		2641
		2642	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2643	my ($uuid, $name) = ($1, $2);
		2644	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2645	or return;
		2646	$pl->ob->uuid eq $uuid
		2647	or return;
		2648
		2649	$pl->ob
		2650	} else {
		2651	warn "$ref: cannot resolve object reference\n";
		2652	undef
		2653	}
		2654	}
		2655
1692	package cf;	2656	package cf;
1693		2657
1694	=back	2658	=back
1695		2659
1696	=head3 cf::object::player	2660	=head3 cf::object::player
…		…
1702	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2666	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1703	can be C<undef>. Does the right thing when the player is currently in a	2667	can be C<undef>. Does the right thing when the player is currently in a
1704	dialogue with the given NPC character.	2668	dialogue with the given NPC character.
1705		2669
1706	=cut	2670	=cut
		2671
		2672	our $SAY_CHANNEL = {
		2673	id => "say",
		2674	title => "Map",
		2675	reply => "say ",
		2676	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2677	};
		2678
		2679	our $CHAT_CHANNEL = {
		2680	id => "chat",
		2681	title => "Chat",
		2682	reply => "chat ",
		2683	tooltip => "Player chat and shouts, global to the server.",
		2684	};
1707		2685
1708	# rough implementation of a future "reply" method that works	2686	# rough implementation of a future "reply" method that works
1709	# with dialog boxes.	2687	# with dialog boxes.
1710	#TODO: the first argument must go, split into a $npc->reply_to ( method	2688	#TODO: the first argument must go, split into a $npc->reply_to ( method
1711	sub cf::object::player::reply($$$;$) {	2689	sub cf::object::player::reply($$$;$) {
…		…
1713		2691
1714	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2692	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1715		2693
1716	if ($self->{record_replies}) {	2694	if ($self->{record_replies}) {
1717	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2695	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2696
1718	} else {	2697	} else {
		2698	my $pl = $self->contr;
		2699
		2700	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2701	my $dialog = $pl->{npc_dialog};
		2702	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2703
		2704	} else {
1719	$msg = $npc->name . " says: $msg" if $npc;	2705	$msg = $npc->name . " says: $msg" if $npc;
1720	$self->message ($msg, $flags);	2706	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2707	}
1721	}	2708	}
		2709	}
		2710
		2711	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2712
		2713	=cut
		2714
		2715	sub cf::object::send_msg {
		2716	my $pl = shift->contr
		2717	or return;
		2718	$pl->send_msg (@_);
1722	}	2719	}
1723		2720
1724	=item $player_object->may ("access")	2721	=item $player_object->may ("access")
1725		2722
1726	Returns wether the given player is authorized to access resource "access"	2723	Returns wether the given player is authorized to access resource "access"
…		…
1739		2736
1740	=item $player_object->enter_link	2737	=item $player_object->enter_link
1741		2738
1742	Freezes the player and moves him/her to a special map (C<{link}>).	2739	Freezes the player and moves him/her to a special map (C<{link}>).
1743		2740
1744	The player should be reaosnably safe there for short amounts of time. You	2741	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.	2742	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2743	though, as the player cannot control the character while it is on the link
		2744	map.
		2745
		2746	Will never block.
1746		2747
1747	=item $player_object->leave_link ($map, $x, $y)	2748	=item $player_object->leave_link ($map, $x, $y)
1748		2749
1749	Moves the player out of the specila link map onto the given map. If the	2750	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	2751	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,	2752	to the location he/she was before the call to C<enter_link>, or, if that
1752	to the emergency map position.	2753	fails, to the emergency map position.
1753		2754
1754	Might block.	2755	Might block.
1755		2756
1756	=cut	2757	=cut
		2758
		2759	sub link_map {
		2760	unless ($LINK_MAP) {
		2761	$LINK_MAP = cf::map::find "{link}"
		2762	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2763	$LINK_MAP->load;
		2764	}
		2765
		2766	$LINK_MAP
		2767	}
1757		2768
1758	sub cf::object::player::enter_link {	2769	sub cf::object::player::enter_link {
1759	my ($self) = @_;	2770	my ($self) = @_;
1760		2771
1761	$self->deactivate_recursive;	2772	$self->deactivate_recursive;
1762		2773
1763	return if $self->map == $LINK_MAP;	2774	++$self->{_link_recursion};
		2775
		2776	return if UNIVERSAL::isa $self->map, "ext::map_link";
1764		2777
1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1766	if $self->map;	2779	if $self->map && $self->map->{path} ne "{link}";
1767		2780
1768	$self->enter_map ($LINK_MAP, 20, 20);	2781	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1769	}	2782	}
1770		2783
1771	sub cf::object::player::leave_link {	2784	sub cf::object::player::leave_link {
1772	my ($self, $map, $x, $y) = @_;	2785	my ($self, $map, $x, $y) = @_;
		2786
		2787	return unless $self->contr->active;
1773		2788
1774	my $link_pos = delete $self->{_link_pos};	2789	my $link_pos = delete $self->{_link_pos};
1775		2790
1776	unless ($map) {	2791	unless ($map) {
1777	# restore original map position	2792	# restore original map position
…		…
1788	($x, $y) = (-1, -1)	2803	($x, $y) = (-1, -1)
1789	unless (defined $x) && (defined $y);	2804	unless (defined $x) && (defined $y);
1790		2805
1791	# use -1 or undef as default coordinates, not 0, 0	2806	# use -1 or undef as default coordinates, not 0, 0
1792	($x, $y) = ($map->enter_x, $map->enter_y)	2807	($x, $y) = ($map->enter_x, $map->enter_y)
1793	if $x <=0 && $y <= 0;	2808	if $x <= 0 && $y <= 0;
1794		2809
1795	$map->load;	2810	$map->load;
1796	$map->load_diag;
1797		2811
1798	return unless $self->contr->active;	2812	return unless $self->contr->active;
		2813
		2814	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2815	if ($self->enter_map ($map, $x, $y)) {
		2816	# entering was successful
		2817	delete $self->{_link_recursion};
		2818	# only activate afterwards, to support waiting in hooks
1799	$self->activate_recursive;	2819	$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	},	2820	}
1814	on_login => sub {
1815	my ($pl) = @_;
1816		2821
1817	# try to abort aborted map switching on player login :)	2822	}
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		2823
1835	=item $player_object->goto ($path, $x, $y)	2824	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1836		2825
		2826	Moves the player to the given map-path and coordinates by first freezing
		2827	her, loading and preparing them map, calling the provided $check callback
		2828	that has to return the map if sucecssful, and then unfreezes the player on
		2829	the new (success) or old (failed) map position. In either case, $done will
		2830	be called at the end of this process.
		2831
		2832	Note that $check will be called with a potentially non-loaded map, so if
		2833	it needs a loaded map it has to call C<< ->load >>.
		2834
1837	=cut	2835	=cut
		2836
		2837	our $GOTOGEN;
1838		2838
1839	sub cf::object::player::goto {	2839	sub cf::object::player::goto {
1840	my ($self, $path, $x, $y) = @_;	2840	my ($self, $path, $x, $y, $check, $done) = @_;
1841		2841
1842	$path = new cf::path $path;	2842	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2843	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2844	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2845	($path, $x, $y) = @$EMERGENCY_POSITION;
		2846	}
		2847
		2848	# do generation counting so two concurrent goto's will be executed in-order
		2849	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1843		2850
1844	$self->enter_link;	2851	$self->enter_link;
1845		2852
1846	(async {	2853	(async {
1847	my $map = cf::map::find $path->as_string;	2854	$Coro::current->{desc} = "player::goto $path $x $y";
		2855
		2856	# *tag paths override both path and x|y
		2857	if ($path =~ /^\*(.*)$/) {
		2858	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2859	my $ob = $obs[rand @obs];
		2860
		2861	# see if we actually can go there
		2862	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2863	$ob = $obs[rand @obs];
		2864	} else {
		2865	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2866	}
		2867	# else put us there anyways for now #d#
		2868
		2869	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2870	} else {
		2871	($path, $x, $y) = (undef, undef, undef);
		2872	}
		2873	}
		2874
		2875	my $map = eval {
		2876	my $map = defined $path ? cf::map::find $path, $self->map : undef;
		2877
		2878	if ($map) {
1848	$map = $map->customise_for ($self) if $map;	2879	$map = $map->customise_for ($self);
1849		2880	$map = $check->($map, $x, $y, $self) if $check && $map;
1850	# warn "entering ", $map->path, " at ($x, $y)\n"	2881	} else {
1851	# if $map;
1852
1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2882	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2883	}
1854		2884
		2885	$map
		2886	};
		2887
		2888	if ($@) {
		2889	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2890	LOG llevError | logBacktrace, Carp::longmess $@;
		2891	}
		2892
		2893	if ($gen == $self->{_goto_generation}) {
		2894	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2895	$self->leave_link ($map, $x, $y);
		2896	}
		2897
		2898	$done->($self) if $done;
1856	})->prio (1);	2899	})->prio (1);
1857	}	2900	}
1858		2901
1859	=item $player_object->enter_exit ($exit_object)	2902	=item $player_object->enter_exit ($exit_object)
1860		2903
…		…
1862		2905
1863	sub parse_random_map_params {	2906	sub parse_random_map_params {
1864	my ($spec) = @_;	2907	my ($spec) = @_;
1865		2908
1866	my $rmp = { # defaults	2909	my $rmp = { # defaults
1867	xsize => 10,	2910	xsize => (cf::rndm 15, 40),
1868	ysize => 10,	2911	ysize => (cf::rndm 15, 40),
		2912	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2913	#layout => string,
1869	};	2914	};
1870		2915
1871	for (split /\n/, $spec) {	2916	for (split /\n/, $spec) {
1872	my ($k, $v) = split /\s+/, $_, 2;	2917	my ($k, $v) = split /\s+/, $_, 2;
1873		2918
…		…
1885	# that depends on the exit object	2930	# that depends on the exit object
1886		2931
1887	my $rmp = parse_random_map_params $exit->msg;	2932	my $rmp = parse_random_map_params $exit->msg;
1888		2933
1889	if ($exit->map) {	2934	if ($exit->map) {
1890	$rmp->{region} = $exit->map->region_name;	2935	$rmp->{region} = $exit->region->name;
1891	$rmp->{origin_map} = $exit->map->path;	2936	$rmp->{origin_map} = $exit->map->path;
1892	$rmp->{origin_x} = $exit->x;	2937	$rmp->{origin_x} = $exit->x;
1893	$rmp->{origin_y} = $exit->y;	2938	$rmp->{origin_y} = $exit->y;
		2939
		2940	$exit->map->touch;
1894	}	2941	}
1895		2942
1896	$rmp->{random_seed} ||= $exit->random_seed;	2943	$rmp->{random_seed} ||= $exit->random_seed;
1897		2944
1898	my $data = cf::to_json $rmp;	2945	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1899	my $md5 = Digest::MD5::md5_hex $data;	2946	my $md5 = Digest::MD5::md5_hex $data;
		2947	my $meta = "$RANDOMDIR/$md5.meta";
1900		2948
1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2949	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1902	aio_write $fh, 0, (length $data), $data, 0;	2950	aio_write $fh, 0, (length $data), $data, 0;
		2951	undef $fh;
		2952	aio_rename "$meta~", $meta;
1903		2953
		2954	my $slaying = "?random/$md5";
		2955
		2956	if ($exit->valid) {
1904	$exit->slaying ("?random/$md5");	2957	$exit->slaying ("?random/$md5");
1905	$exit->msg (undef);	2958	$exit->msg (undef);
		2959	}
1906	}	2960	}
1907	}	2961	}
1908		2962
1909	sub cf::object::player::enter_exit {	2963	sub cf::object::player::enter_exit {
1910	my ($self, $exit) = @_;	2964	my ($self, $exit) = @_;
…		…
1912	return unless $self->type == cf::PLAYER;	2966	return unless $self->type == cf::PLAYER;
1913		2967
1914	$self->enter_link;	2968	$self->enter_link;
1915		2969
1916	(async {	2970	(async {
1917	$self->deactivate_recursive; # just to be sure	2971	$Coro::current->{desc} = "enter_exit";
		2972
1918	unless (eval {	2973	unless (eval {
		2974	$self->deactivate_recursive; # just to be sure
		2975
		2976	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2977	my $x = $exit->stats->hp;
		2978	my $y = $exit->stats->sp;
		2979
		2980	# special map handling
		2981	my $slaying = $exit->slaying;
		2982
		2983	# special map handling
		2984	if ($slaying eq "/!") {
		2985	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2986
1919	prepare_random_map $exit	2987	prepare_random_map $exit
		2988	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2989
1920	if $exit->slaying eq "/!";	2990	$map = $exit->slaying;
1921		2991
1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2992	} elsif ($slaying eq '!up') {
1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2993	$map = $exit->map->tile_path (cf::TILE_UP);
		2994	$x = $exit->x;
		2995	$y = $exit->y;
1924		2996
		2997	} elsif ($slaying eq '!down') {
		2998	$map = $exit->map->tile_path (cf::TILE_DOWN);
		2999	$x = $exit->x;
		3000	$y = $exit->y;
		3001	}
		3002
		3003	$self->goto ($map, $x, $y);
		3004
		3005	# if exit is damned, update players death & WoR home-position
		3006	$self->contr->savebed ($map, $x, $y)
		3007	if $exit->flag (cf::FLAG_DAMNED);
		3008
1925	1;	3009	1
1926	}) {	3010	}) {
1927	$self->message ("Something went wrong deep within the crossfire server. "	3011	$self->message ("Something went wrong deep within the deliantra server. "
1928	. "I'll try to bring you back to the map you were before. "	3012	. "I'll try to bring you back to the map you were before. "
1929	. "Please report this to the dungeon master!",	3013	. "Please report this to the dungeon master!",
1930	cf::NDI_UNIQUE | cf::NDI_RED);	3014	cf::NDI_UNIQUE | cf::NDI_RED);
1931		3015
1932	warn "ERROR in enter_exit: $@";	3016	error "ERROR in enter_exit: $@";
1933	$self->leave_link;	3017	$self->leave_link;
1934	}	3018	}
1935	})->prio (1);	3019	})->prio (1);
1936	}	3020	}
1937		3021
…		…
1948		3032
1949	sub cf::client::send_drawinfo {	3033	sub cf::client::send_drawinfo {
1950	my ($self, $text, $flags) = @_;	3034	my ($self, $text, $flags) = @_;
1951		3035
1952	utf8::encode $text;	3036	utf8::encode $text;
1953	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	3037	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1954	}	3038	}
1955		3039
		3040	=item $client->send_big_packet ($pkt)
		3041
		3042	Like C<send_packet>, but tries to compress large packets, and fragments
		3043	them as required.
		3044
		3045	=cut
		3046
		3047	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3048
		3049	sub cf::client::send_big_packet {
		3050	my ($self, $pkt) = @_;
		3051
		3052	# try lzf for large packets
		3053	$pkt = "lzf " . Compress::LZF::compress $pkt
		3054	if 1024 <= length $pkt and $self->{can_lzf};
		3055
		3056	# split very large packets
		3057	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3058	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3059	$pkt = "frag";
		3060	}
		3061
		3062	$self->send_packet ($pkt);
		3063	}
		3064
		3065	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3066
		3067	Send a drawinfo or msg packet to the client, formatting the msg for the
		3068	client if neccessary. C<$type> should be a string identifying the type of
		3069	the message, with C<log> being the default. If C<$color> is negative, suppress
		3070	the message unless the client supports the msg packet.
		3071
		3072	=cut
		3073
		3074	# non-persistent channels (usually the info channel)
		3075	our %CHANNEL = (
		3076	"c/motd" => {
		3077	id => "infobox",
		3078	title => "MOTD",
		3079	reply => undef,
		3080	tooltip => "The message of the day",
		3081	},
		3082	"c/identify" => {
		3083	id => "infobox",
		3084	title => "Identify",
		3085	reply => undef,
		3086	tooltip => "Items recently identified",
		3087	},
		3088	"c/examine" => {
		3089	id => "infobox",
		3090	title => "Examine",
		3091	reply => undef,
		3092	tooltip => "Signs and other items you examined",
		3093	},
		3094	"c/shopinfo" => {
		3095	id => "infobox",
		3096	title => "Shop Info",
		3097	reply => undef,
		3098	tooltip => "What your bargaining skill tells you about the shop",
		3099	},
		3100	"c/book" => {
		3101	id => "infobox",
		3102	title => "Book",
		3103	reply => undef,
		3104	tooltip => "The contents of a note or book",
		3105	},
		3106	"c/lookat" => {
		3107	id => "infobox",
		3108	title => "Look",
		3109	reply => undef,
		3110	tooltip => "What you saw there",
		3111	},
		3112	"c/who" => {
		3113	id => "infobox",
		3114	title => "Players",
		3115	reply => undef,
		3116	tooltip => "Shows players who are currently online",
		3117	},
		3118	"c/body" => {
		3119	id => "infobox",
		3120	title => "Body Parts",
		3121	reply => undef,
		3122	tooltip => "Shows which body parts you posess and are available",
		3123	},
		3124	"c/statistics" => {
		3125	id => "infobox",
		3126	title => "Statistics",
		3127	reply => undef,
		3128	tooltip => "Shows your primary statistics",
		3129	},
		3130	"c/skills" => {
		3131	id => "infobox",
		3132	title => "Skills",
		3133	reply => undef,
		3134	tooltip => "Shows your experience per skill and item power",
		3135	},
		3136	"c/shopitems" => {
		3137	id => "infobox",
		3138	title => "Shop Items",
		3139	reply => undef,
		3140	tooltip => "Shows the items currently for sale in this shop",
		3141	},
		3142	"c/resistances" => {
		3143	id => "infobox",
		3144	title => "Resistances",
		3145	reply => undef,
		3146	tooltip => "Shows your resistances",
		3147	},
		3148	"c/pets" => {
		3149	id => "infobox",
		3150	title => "Pets",
		3151	reply => undef,
		3152	tooltip => "Shows information abotu your pets/a specific pet",
		3153	},
		3154	"c/perceiveself" => {
		3155	id => "infobox",
		3156	title => "Perceive Self",
		3157	reply => undef,
		3158	tooltip => "You gained detailed knowledge about yourself",
		3159	},
		3160	"c/uptime" => {
		3161	id => "infobox",
		3162	title => "Uptime",
		3163	reply => undef,
		3164	tooltip => "How long the server has been running since last restart",
		3165	},
		3166	"c/mapinfo" => {
		3167	id => "infobox",
		3168	title => "Map Info",
		3169	reply => undef,
		3170	tooltip => "Information related to the maps",
		3171	},
		3172	"c/party" => {
		3173	id => "party",
		3174	title => "Party",
		3175	reply => "gsay ",
		3176	tooltip => "Messages and chat related to your party",
		3177	},
		3178	"c/death" => {
		3179	id => "death",
		3180	title => "Death",
		3181	reply => undef,
		3182	tooltip => "Reason for and more info about your most recent death",
		3183	},
		3184	"c/say" => $SAY_CHANNEL,
		3185	"c/chat" => $CHAT_CHANNEL,
		3186	);
		3187
		3188	sub cf::client::send_msg {
		3189	my ($self, $channel, $msg, $color, @extra) = @_;
		3190
		3191	$msg = $self->pl->expand_cfpod ($msg)
		3192	unless $color & cf::NDI_VERBATIM;
		3193
		3194	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3195
		3196	# check predefined channels, for the benefit of C
		3197	if ($CHANNEL{$channel}) {
		3198	$channel = $CHANNEL{$channel};
		3199
		3200	$self->ext_msg (channel_info => $channel);
		3201	$channel = $channel->{id};
		3202
		3203	} elsif (ref $channel) {
		3204	# send meta info to client, if not yet sent
		3205	unless (exists $self->{channel}{$channel->{id}}) {
		3206	$self->{channel}{$channel->{id}} = $channel;
		3207	$self->ext_msg (channel_info => $channel);
		3208	}
		3209
		3210	$channel = $channel->{id};
		3211	}
		3212
		3213	return unless @extra || length $msg;
		3214
		3215	# default colour, mask it out
		3216	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3217	if $color & cf::NDI_DEF;
		3218
		3219	my $pkt = "msg "
		3220	. $self->{json_coder}->encode (
		3221	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3222	);
		3223
		3224	$self->send_big_packet ($pkt);
		3225	}
		3226
		3227	=item $client->ext_msg ($type, @msg)
		3228
		3229	Sends an ext event to the client.
		3230
		3231	=cut
		3232
		3233	sub cf::client::ext_msg($$@) {
		3234	my ($self, $type, @msg) = @_;
		3235
		3236	if ($self->extcmd == 2) {
		3237	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3238	} elsif ($self->extcmd == 1) { # TODO: remove
		3239	push @msg, msgtype => "event_$type";
		3240	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3241	}
		3242	}
		3243
		3244	=item $client->ext_reply ($msgid, @msg)
		3245
		3246	Sends an ext reply to the client.
		3247
		3248	=cut
		3249
		3250	sub cf::client::ext_reply($$@) {
		3251	my ($self, $id, @msg) = @_;
		3252
		3253	return unless $self->extcmd == 2;
		3254
		3255	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3256	}
1956		3257
1957	=item $success = $client->query ($flags, "text", \&cb)	3258	=item $success = $client->query ($flags, "text", \&cb)
1958		3259
1959	Queues a query to the client, calling the given callback with	3260	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>,	3261	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>.	3262	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1962		3263
1963	Queries can fail, so check the return code. Or don't, as queries will become	3264	Queries can fail, so check the return code. Or don't, as queries will
1964	reliable at some point in the future.	3265	become reliable at some point in the future.
1965		3266
1966	=cut	3267	=cut
1967		3268
1968	sub cf::client::query {	3269	sub cf::client::query {
1969	my ($self, $flags, $text, $cb) = @_;	3270	my ($self, $flags, $text, $cb) = @_;
…		…
1977	utf8::encode $text;	3278	utf8::encode $text;
1978	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3279	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1979		3280
1980	$self->send_packet ($self->{query_queue}[0][0])	3281	$self->send_packet ($self->{query_queue}[0][0])
1981	if @{ $self->{query_queue} } == 1;	3282	if @{ $self->{query_queue} } == 1;
		3283
		3284	1
1982	}	3285	}
1983		3286
1984	cf::client->attach (	3287	cf::client->attach (
		3288	on_connect => sub {
		3289	my ($ns) = @_;
		3290
		3291	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3292	},
1985	on_reply => sub {	3293	on_reply => sub {
1986	my ($ns, $msg) = @_;	3294	my ($ns, $msg) = @_;
1987		3295
1988	# this weird shuffling is so that direct followup queries	3296	# this weird shuffling is so that direct followup queries
1989	# get handled first	3297	# get handled first
1990	my $queue = delete $ns->{query_queue}	3298	my $queue = delete $ns->{query_queue}
1991	or return; # be conservative, not sure how that can happen, but we saw a crash here	3299	or return; # be conservative, not sure how that can happen, but we saw a crash here
1992		3300
1993	(shift @$queue)->[1]->($msg);	3301	(shift @$queue)->[1]->($msg);
		3302	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1994		3303
1995	push @{ $ns->{query_queue} }, @$queue;	3304	push @{ $ns->{query_queue} }, @$queue;
1996		3305
1997	if (@{ $ns->{query_queue} } == @$queue) {	3306	if (@{ $ns->{query_queue} } == @$queue) {
1998	if (@$queue) {	3307	if (@$queue) {
…		…
2000	} else {	3309	} else {
2001	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3310	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2002	}	3311	}
2003	}	3312	}
2004	},	3313	},
		3314	on_exticmd => sub {
		3315	my ($ns, $buf) = @_;
		3316
		3317	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3318
		3319	if (ref $msg) {
		3320	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3321
		3322	my @reply;
		3323
		3324	if (my $cb = $EXTICMD{$type}) {
		3325	@reply = $cb->($ns, @payload);
		3326	}
		3327
		3328	$ns->ext_reply ($reply, @reply)
		3329	if $reply;
		3330
		3331	} else {
		3332	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3333	}
		3334
		3335	cf::override;
		3336	},
2005	);	3337	);
2006		3338
2007	=item $client->async (\&cb)	3339	=item $client->async (\&cb)
2008		3340
2009	Create a new coroutine, running the specified callback. The coroutine will	3341	Create a new coroutine, running the specified callback. The coroutine will
…		…
2025		3357
2026	$coro	3358	$coro
2027	}	3359	}
2028		3360
2029	cf::client->attach (	3361	cf::client->attach (
2030	on_destroy => sub {	3362	on_client_destroy => sub {
2031	my ($ns) = @_;	3363	my ($ns) = @_;
2032		3364
2033	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3365	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2034	},	3366	},
2035	);	3367	);
…		…
2050	our $safe = new Safe "safe";	3382	our $safe = new Safe "safe";
2051	our $safe_hole = new Safe::Hole;	3383	our $safe_hole = new Safe::Hole;
2052		3384
2053	$SIG{FPE} = 'IGNORE';	3385	$SIG{FPE} = 'IGNORE';
2054		3386
2055	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3387	$safe->permit_only (Opcode::opset qw(
		3388	:base_core :base_mem :base_orig :base_math :base_loop
		3389	grepstart grepwhile mapstart mapwhile
		3390	sort time
		3391	));
2056		3392
2057	# here we export the classes and methods available to script code	3393	# here we export the classes and methods available to script code
2058		3394
2059	=pod	3395	=pod
2060		3396
2061	The following fucntions and emthods are available within a safe environment:	3397	The following functions and methods are available within a safe environment:
2062		3398
2063	cf::object contr pay_amount pay_player map	3399	cf::object
		3400	contr pay_amount pay_player map x y force_find force_add destroy
		3401	insert remove name archname title slaying race decrease split
		3402	value
		3403
2064	cf::object::player player	3404	cf::object::player
2065	cf::player peaceful	3405	player
2066	cf::map trigger	3406
		3407	cf::player
		3408	peaceful
		3409
		3410	cf::map
		3411	trigger
2067		3412
2068	=cut	3413	=cut
2069		3414
2070	for (	3415	for (
2071	["cf::object" => qw(contr pay_amount pay_player map)],	3416	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3417	insert remove inv nrof name archname title slaying race
		3418	decrease split destroy change_exp value msg lore send_msg)],
2072	["cf::object::player" => qw(player)],	3419	["cf::object::player" => qw(player)],
2073	["cf::player" => qw(peaceful)],	3420	["cf::player" => qw(peaceful send_msg)],
2074	["cf::map" => qw(trigger)],	3421	["cf::map" => qw(trigger)],
2075	) {	3422	) {
2076	no strict 'refs';
2077	my ($pkg, @funs) = @$_;	3423	my ($pkg, @funs) = @$_;
2078	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3424	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2079	for @funs;	3425	for @funs;
2080	}	3426	}
2081		3427
…		…
2096		3442
2097	my $qcode = $code;	3443	my $qcode = $code;
2098	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3444	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2099	$qcode =~ s/\n/\\n/g;	3445	$qcode =~ s/\n/\\n/g;
2100		3446
		3447	%vars = (_dummy => 0) unless %vars;
		3448
		3449	my @res;
2101	local $_;	3450	local $_;
2102	local @safe::cf::_safe_eval_args = values %vars;
2103		3451
2104	my $eval =	3452	my $eval =
2105	"do {\n"	3453	"do {\n"
2106	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3454	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2107	. "#line 0 \"{$qcode}\"\n"	3455	. "#line 0 \"{$qcode}\"\n"
2108	. $code	3456	. $code
2109	. "\n}"	3457	. "\n}"
2110	;	3458	;
2111		3459
		3460	if ($CFG{safe_eval}) {
2112	sub_generation_inc;	3461	sub_generation_inc;
		3462	local @safe::cf::_safe_eval_args = values %vars;
2113	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3463	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2114	sub_generation_inc;	3464	sub_generation_inc;
		3465	} else {
		3466	local @cf::_safe_eval_args = values %vars;
		3467	@res = wantarray ? eval eval : scalar eval $eval;
		3468	}
2115		3469
2116	if ($@) {	3470	if ($@) {
2117	warn "$@";	3471	warn "$@",
2118	warn "while executing safe code '$code'\n";	3472	"while executing safe code '$code'\n",
2119	warn "with arguments " . (join " ", %vars) . "\n";	3473	"with arguments " . (join " ", %vars) . "\n";
2120	}	3474	}
2121		3475
2122	wantarray ? @res : $res[0]	3476	wantarray ? @res : $res[0]
2123	}	3477	}
2124		3478
…		…
2138	=cut	3492	=cut
2139		3493
2140	sub register_script_function {	3494	sub register_script_function {
2141	my ($fun, $cb) = @_;	3495	my ($fun, $cb) = @_;
2142		3496
2143	no strict 'refs';	3497	$fun = "safe::$fun" if $CFG{safe_eval};
2144	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3498	*$fun = $safe_hole->wrap ($cb);
2145	}	3499	}
2146		3500
2147	=back	3501	=back
2148		3502
2149	=cut	3503	=cut
2150		3504
2151	#############################################################################	3505	#############################################################################
		3506	# the server's init and main functions
2152		3507
2153	=head2 EXTENSION DATABASE SUPPORT	3508	sub load_facedata($) {
		3509	my ($path) = @_;
2154		3510
2155	Crossfire maintains a very simple database for extension use. It can	3511	# HACK to clear player env face cache, we need some signal framework
2156	currently store anything that can be serialised using Storable, which	3512	# for this (global event?)
2157	excludes objects.	3513	%ext::player_env::MUSIC_FACE_CACHE = ();
2158		3514
2159	The parameter C<$family> should best start with the name of the extension	3515	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2160	using it, it should be unique.
2161		3516
2162	=over 4	3517	trace "loading facedata from $path\n";
2163		3518
2164	=item $hashref = cf::db_get $family	3519	my $facedata = decode_storable load_file $path;
2165		3520
2166	Return a hashref for use by the extension C<$family>, which can be	3521	$facedata->{version} == 2
2167	modified. After modifications, you have to call C<cf::db_dirty> or	3522	or cf::cleanup "$path: version mismatch, cannot proceed.";
2168	C<cf::db_sync>.
2169		3523
2170	=item $value = cf::db_get $family => $key	3524	# patch in the exptable
2171		3525	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
2172	Returns a single value from the database	3526	$facedata->{resource}{"res/exp_table"} = {
2173		3527	type => FT_RSRC,
2174	=item cf::db_put $family => $hashref	3528	data => $exp_table,
2175		3529	hash => (Digest::MD5::md5 $exp_table),
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	});	3530	};
		3531	cf::cede_to_tick;
2225		3532
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}	3533	{
		3534	my $faces = $facedata->{faceinfo};
2230		3535
2231	sub db_get($;$) {	3536	while (my ($face, $info) = each %$faces) {
2232	@_ >= 2	3537	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2233	? $DB->{$_[0]}{$_[1]}
2234	: ($DB->{$_[0]} ||= { })
2235	}
2236		3538
2237	sub db_put($$;$) {	3539	cf::face::set_visibility $idx, $info->{visibility};
2238	if (@_ >= 3) {	3540	cf::face::set_magicmap $idx, $info->{magicmap};
2239	$DB->{$_[0]}{$_[1]} = $_[2];	3541	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2240	} else {	3542	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2241	$DB->{$_[0]} = $_[1];	3543	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
2242	}
2243	db_dirty;
2244	}
2245		3544
2246	cf::global->attach (	3545	cf::cede_to_tick;
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	3546	}
2251	);
2252	}
2253		3547
2254	#############################################################################	3548	while (my ($face, $info) = each %$faces) {
2255	# the server's main()	3549	next unless $info->{smooth};
2256		3550
2257	sub cfg_load {	3551	my $idx = cf::face::find $face
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3552	or next;
2259	or return;
2260		3553
2261	local $/;	3554	if (my $smooth = cf::face::find $info->{smooth}) {
2262	*CFG = YAML::Syck::Load <$fh>;	3555	cf::face::set_smooth $idx, $smooth;
		3556	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3557	} else {
		3558	error "smooth face '$info->{smooth}' not found for face '$face'";
		3559	}
2263		3560
		3561	cf::cede_to_tick;
		3562	}
		3563	}
		3564
		3565	{
		3566	my $anims = $facedata->{animinfo};
		3567
		3568	while (my ($anim, $info) = each %$anims) {
		3569	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3570	cf::cede_to_tick;
		3571	}
		3572
		3573	cf::anim::invalidate_all; # d'oh
		3574	}
		3575
		3576	{
		3577	my $res = $facedata->{resource};
		3578
		3579	while (my ($name, $info) = each %$res) {
		3580	if (defined (my $type = $info->{type})) {
		3581	# TODO: different hash - must free and use new index, or cache ixface data queue
		3582	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3583
		3584	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3585	cf::face::set_type $idx, $type;
		3586	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3587	} else {
		3588	# $RESOURCE{$name} = $info; # unused
		3589	}
		3590
		3591	cf::cede_to_tick;
		3592	}
		3593	}
		3594
		3595	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3596
		3597	1
		3598	}
		3599
		3600	register_exticmd fx_want => sub {
		3601	my ($ns, $want) = @_;
		3602
		3603	while (my ($k, $v) = each %$want) {
		3604	$ns->fx_want ($k, $v);
		3605	}
		3606	};
		3607
		3608	sub load_resource_file($) {
		3609	my $guard = lock_acquire "load_resource_file";
		3610
		3611	my $status = load_resource_file_ $_[0];
		3612	get_slot 0.1, 100;
		3613	cf::arch::commit_load;
		3614
		3615	$status
		3616	}
		3617
		3618	sub reload_regions {
		3619	# HACK to clear player env face cache, we need some signal framework
		3620	# for this (global event?)
		3621	%ext::player_env::MUSIC_FACE_CACHE = ();
		3622
		3623	load_resource_file "$MAPDIR/regions"
		3624	or die "unable to load regions file\n";
		3625
		3626	for (cf::region::list) {
		3627	$_->{match} = qr/$_->{match}/
		3628	if exists $_->{match};
		3629	}
		3630	}
		3631
		3632	sub reload_facedata {
		3633	load_facedata "$DATADIR/facedata"
		3634	or die "unable to load facedata\n";
		3635	}
		3636
		3637	sub reload_archetypes {
		3638	load_resource_file "$DATADIR/archetypes"
		3639	or die "unable to load archetypes\n";
		3640	}
		3641
		3642	sub reload_treasures {
		3643	load_resource_file "$DATADIR/treasures"
		3644	or die "unable to load treasurelists\n";
		3645	}
		3646
		3647	sub reload_sound {
		3648	trace "loading sound config from $DATADIR/sound\n";
		3649
		3650	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3651
		3652	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3653	my $sound = $soundconf->{compat}[$_]
		3654	or next;
		3655
		3656	my $face = cf::face::find "sound/$sound->[1]";
		3657	cf::sound::set $sound->[0] => $face;
		3658	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3659	}
		3660
		3661	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3662	my $face = cf::face::find "sound/$v";
		3663	cf::sound::set $k => $face;
		3664	}
		3665	}
		3666
		3667	sub reload_resources {
		3668	trace "reloading resource files...\n";
		3669
		3670	reload_exp_table;
		3671	reload_materials;
		3672	reload_facedata;
		3673	reload_sound;
		3674	reload_archetypes;
		3675	reload_regions;
		3676	reload_treasures;
		3677
		3678	trace "finished reloading resource files\n";
		3679	}
		3680
		3681	sub reload_config {
		3682	trace "reloading config file...\n";
		3683
		3684	my $config = load_file "$CONFDIR/config";
		3685	utf8::decode $config;
		3686	*CFG = decode_yaml $config;
		3687
2264	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3688	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2265		3689
2266	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3690	$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};	3691	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2268		3692
2269	if (exists $CFG{mlockall}) {	3693	if (exists $CFG{mlockall}) {
…		…
2273	};	3697	};
2274	warn $@ if $@;	3698	warn $@ if $@;
2275	}	3699	}
2276	}	3700	}
2277		3701
		3702	sub pidfile() {
		3703	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3704	or die "$PIDFILE: $!";
		3705	flock $fh, &Fcntl::LOCK_EX
		3706	or die "$PIDFILE: flock: $!";
		3707	$fh
		3708	}
		3709
		3710	# make sure only one server instance is running at any one time
		3711	sub atomic {
		3712	my $fh = pidfile;
		3713
		3714	my $pid = <$fh>;
		3715	kill 9, $pid if $pid > 0;
		3716
		3717	seek $fh, 0, 0;
		3718	print $fh $$;
		3719	}
		3720
		3721	sub main_loop {
		3722	trace "EV::loop starting\n";
		3723	if (1) {
		3724	EV::loop;
		3725	}
		3726	trace "EV::loop returned\n";
		3727	goto &main_loop unless $REALLY_UNLOOP;
		3728	}
		3729
2278	sub main {	3730	sub main {
		3731	cf::init_globals; # initialise logging
		3732
		3733	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3734	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3735	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3736	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3737
		3738	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3739
2279	# we must not ever block the main coroutine	3740	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	3741	local $Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3742	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2282	async { Event::one_event };	3743	(async {
		3744	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3745	EV::loop EV::LOOP_ONESHOT;
		3746	})->prio (Coro::PRIO_MAX);
2283	};	3747	};
2284		3748
2285	cfg_load;	3749	evthread_start IO::AIO::poll_fileno;
2286	db_load;	3750
		3751	cf::sync_job {
		3752	cf::incloader::init ();
		3753
		3754	cf::init_anim;
		3755	cf::init_attackmess;
		3756	cf::init_dynamic;
		3757
		3758	cf::load_settings;
		3759
		3760	reload_resources;
		3761	reload_config;
		3762	db_init;
		3763
		3764	cf::init_uuid;
		3765	cf::init_signals;
		3766	cf::init_skills;
		3767
		3768	cf::init_beforeplay;
		3769
		3770	atomic;
		3771
2287	load_extensions;	3772	load_extensions;
2288	Event::loop;	3773
		3774	utime time, time, $RUNTIMEFILE;
		3775
		3776	# no (long-running) fork's whatsoever before this point(!)
		3777	use POSIX ();
		3778	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3779
		3780	cf::_post_init 0;
		3781	};
		3782
		3783	cf::object::thawer::errors_are_fatal 0;
		3784	info "parse errors in files are no longer fatal from this point on.\n";
		3785
		3786	AE::postpone {
		3787	undef &main; # free gobs of memory :)
		3788	};
		3789
		3790	goto &main_loop;
2289	}	3791	}
2290		3792
2291	#############################################################################	3793	#############################################################################
2292	# initialisation and cleanup	3794	# initialisation and cleanup
2293		3795
2294	# install some emergency cleanup handlers	3796	# install some emergency cleanup handlers
2295	BEGIN {	3797	BEGIN {
		3798	our %SIGWATCHER = ();
2296	for my $signal (qw(INT HUP TERM)) {	3799	for my $signal (qw(INT HUP TERM)) {
2297	Event->signal (	3800	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2298	data => WF_AUTOCANCEL,
2299	signal => $signal,
2300	cb => sub {
2301	cf::cleanup "SIG$signal";	3801	cf::cleanup "SIG$signal";
2302	},
2303	);	3802	};
		3803	}
		3804	}
		3805
		3806	sub write_runtime_sync {
		3807	my $t0 = AE::time;
		3808
		3809	# first touch the runtime file to show we are still running:
		3810	# the fsync below can take a very very long time.
		3811
		3812	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3813
		3814	my $guard = cf::lock_acquire "write_runtime";
		3815
		3816	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3817	or return;
		3818
		3819	my $value = $cf::RUNTIME + 90 + 10;
		3820	# 10 is the runtime save interval, for a monotonic clock
		3821	# 60 allows for the watchdog to kill the server.
		3822
		3823	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3824	and return;
		3825
		3826	# always fsync - this file is important
		3827	aio_fsync $fh
		3828	and return;
		3829
		3830	# touch it again to show we are up-to-date
		3831	aio_utime $fh, undef, undef;
		3832
		3833	close $fh
		3834	or return;
		3835
		3836	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3837	and return;
		3838
		3839	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3840
2304	}	3841	1
		3842	}
		3843
		3844	our $uuid_lock;
		3845	our $uuid_skip;
		3846
		3847	sub write_uuid_sync($) {
		3848	$uuid_skip ||= $_[0];
		3849
		3850	return if $uuid_lock;
		3851	local $uuid_lock = 1;
		3852
		3853	my $uuid = "$LOCALDIR/uuid";
		3854
		3855	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3856	or return;
		3857
		3858	my $value = uuid_seq uuid_cur;
		3859
		3860	unless ($value) {
		3861	info "cowardly refusing to write zero uuid value!\n";
		3862	return;
		3863	}
		3864
		3865	my $value = uuid_str $value + $uuid_skip;
		3866	$uuid_skip = 0;
		3867
		3868	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3869	and return;
		3870
		3871	# always fsync - this file is important
		3872	aio_fsync $fh
		3873	and return;
		3874
		3875	close $fh
		3876	or return;
		3877
		3878	aio_rename "$uuid~", $uuid
		3879	and return;
		3880
		3881	trace "uuid file written ($value).\n";
		3882
		3883	1
		3884
		3885	}
		3886
		3887	sub write_uuid($$) {
		3888	my ($skip, $sync) = @_;
		3889
		3890	$sync ? write_uuid_sync $skip
		3891	: async { write_uuid_sync $skip };
2305	}	3892	}
2306		3893
2307	sub emergency_save() {	3894	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	3895	my $freeze_guard = cf::freeze_mainloop;
2309		3896
2310	warn "enter emergency perl save\n";	3897	info "emergency_perl_save: enter\n";
		3898
		3899	# this is a trade-off: we want to be very quick here, so
		3900	# save all maps without fsync, and later call a global sync
		3901	# (which in turn might be very very slow)
		3902	local $USE_FSYNC = 0;
2311		3903
2312	cf::sync_job {	3904	cf::sync_job {
		3905	cf::write_runtime_sync; # external watchdog should not bark
		3906
2313	# use a peculiar iteration method to avoid tripping on perl	3907	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	3908	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/Destroyed asynchronously.	3909	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	3910	info "emergency_perl_save: begin player save\n";
2317	for my $login (keys %cf::PLAYER) {	3911	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	3912	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	3913	$pl->valid or next;
		3914	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2320	$pl->save;	3915	$pl->save;
2321	}	3916	}
2322	warn "end emergency player save\n";	3917	info "emergency_perl_save: end player save\n";
2323		3918
2324	warn "begin emergency map save\n";	3919	cf::write_runtime_sync; # external watchdog should not bark
		3920
		3921	info "emergency_perl_save: begin map save\n";
2325	for my $path (keys %cf::MAP) {	3922	for my $path (keys %cf::MAP) {
2326	my $map = $cf::MAP{$path} or next;	3923	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	3924	$map->valid or next;
2328	$map->save;	3925	$map->save;
2329	}	3926	}
2330	warn "end emergency map save\n";	3927	info "emergency_perl_save: end map save\n";
		3928
		3929	cf::write_runtime_sync; # external watchdog should not bark
		3930
		3931	info "emergency_perl_save: begin database checkpoint\n";
		3932	BDB::db_env_txn_checkpoint $DB_ENV;
		3933	info "emergency_perl_save: end database checkpoint\n";
		3934
		3935	info "emergency_perl_save: begin write uuid\n";
		3936	write_uuid_sync 1;
		3937	info "emergency_perl_save: end write uuid\n";
		3938
		3939	cf::write_runtime_sync; # external watchdog should not bark
		3940
		3941	trace "emergency_perl_save: syncing database to disk";
		3942	BDB::db_env_txn_checkpoint $DB_ENV;
		3943
		3944	info "emergency_perl_save: starting sync\n";
		3945	IO::AIO::aio_sync sub {
		3946	info "emergency_perl_save: finished sync\n";
		3947	};
		3948
		3949	cf::write_runtime_sync; # external watchdog should not bark
		3950
		3951	trace "emergency_perl_save: flushing outstanding aio requests";
		3952	while (IO::AIO::nreqs || BDB::nreqs) {
		3953	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3954	}
		3955
		3956	cf::write_runtime_sync; # external watchdog should not bark
2331	};	3957	};
2332		3958
2333	warn "leave emergency perl save\n";	3959	info "emergency_perl_save: leave\n";
2334	}	3960	}
2335		3961
		3962	sub post_cleanup {
		3963	my ($make_core) = @_;
		3964
		3965	IO::AIO::flush;
		3966
		3967	error Carp::longmess "post_cleanup backtrace"
		3968	if $make_core;
		3969
		3970	my $fh = pidfile;
		3971	unlink $PIDFILE if <$fh> == $$;
		3972	}
		3973
		3974	# a safer delete_package, copied from Symbol
		3975	sub clear_package($) {
		3976	my $pkg = shift;
		3977
		3978	# expand to full symbol table name if needed
		3979	unless ($pkg =~ /^main::.*::$/) {
		3980	$pkg = "main$pkg" if $pkg =~ /^::/;
		3981	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3982	$pkg .= '::' unless $pkg =~ /::$/;
		3983	}
		3984
		3985	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3986	my $stem_symtab = *{$stem}{HASH};
		3987
		3988	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3989	or return;
		3990
		3991	# clear all symbols
		3992	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3993	for my $name (keys %$leaf_symtab) {
		3994	_gv_clear *{"$pkg$name"};
		3995	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3996	}
		3997	}
		3998
2336	sub reload() {	3999	sub do_reload_perl() {
2337	# can/must only be called in main	4000	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	4001	unless (in_main) {
2339	warn "can only reload from main coroutine\n";	4002	error "can only reload from main coroutine";
2340	return;	4003	return;
2341	}	4004	}
2342		4005
2343	warn "reloading...";	4006	return if $RELOAD++;
2344		4007
2345	my $guard = freeze_mainloop;	4008	my $t1 = AE::time;
		4009
		4010	while ($RELOAD) {
		4011	cf::get_slot 0.1, -1, "reload_perl";
		4012	info "perl_reload: reloading...";
		4013
		4014	trace "perl_reload: entering sync_job";
		4015
		4016	cf::sync_job {
2346	cf::emergency_save;	4017	#cf::emergency_save;
2347		4018
2348	eval {	4019	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;	4020	$_->cancel for values %EXT_CORO;
2358	%EXT_CORO = ();	4021	%EXT_CORO = ();
2359		4022
2360	# unload all extensions	4023	trace "perl_reload: removing commands";
2361	for (@exts) {	4024	%COMMAND = ();
2362	warn "unloading <$_>";
2363	unload_extension $_;
2364	}
2365		4025
2366	# unload all modules loaded from $LIBDIR	4026	trace "perl_reload: removing ext/exti commands";
2367	while (my ($k, $v) = each %INC) {	4027	%EXTCMD = ();
2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4028	%EXTICMD = ();
2369		4029
2370	warn "removing <$k>";	4030	trace "perl_reload: unloading/nuking all extensions";
2371	delete $INC{$k};	4031	for my $pkg (@EXTS) {
		4032	trace "... unloading $pkg";
2372		4033
2373	$k =~ s/\.pm$//;
2374	$k =~ s/\//::/g;
2375
2376	if (my $cb = $k->can ("unload_module")) {	4034	if (my $cb = $pkg->can ("unload")) {
		4035	eval {
2377	$cb->();	4036	$cb->($pkg);
		4037	1
		4038	} or error "$pkg unloaded, but with errors: $@";
		4039	}
		4040
		4041	trace "... clearing $pkg";
		4042	clear_package $pkg;
2378	}	4043	}
2379		4044
2380	Symbol::delete_package $k;	4045	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
		4046	while (my ($k, $v) = each %INC) {
		4047	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		4048
		4049	trace "... unloading $k";
		4050	delete $INC{$k};
		4051
		4052	$k =~ s/\.pm$//;
		4053	$k =~ s/\//::/g;
		4054
		4055	if (my $cb = $k->can ("unload_module")) {
		4056	$cb->();
		4057	}
		4058
		4059	clear_package $k;
2381	}	4060	}
2382		4061
2383	# sync database to disk
2384	cf::db_sync;
2385	IO::AIO::flush;
2386
2387	# get rid of safe::, as good as possible	4062	trace "perl_reload: getting rid of safe::, as good as possible";
2388	Symbol::delete_package "safe::$_"	4063	clear_package "safe::$_"
2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4064	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2390		4065
2391	# remove register_script_function callbacks	4066	trace "perl_reload: unloading cf.pm \"a bit\"";
2392	# TODO
2393
2394	# unload cf.pm "a bit"
2395	delete $INC{"cf.pm"};	4067	delete $INC{"cf.pm"};
		4068	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2396		4069
2397	# don't, removes xs symbols, too,	4070	# don't, removes xs symbols, too,
2398	# and global variables created in xs	4071	# and global variables created in xs
2399	#Symbol::delete_package __PACKAGE__;	4072	#clear_package __PACKAGE__;
2400		4073
2401	# reload cf.pm	4074	info "perl_reload: unload completed, starting to reload now";
2402	warn "reloading cf.pm";	4075
		4076	trace "perl_reload: reloading cf.pm";
2403	require cf;	4077	require cf;
2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4078	cf::_connect_to_perl_1;
2405		4079
2406	# load config and database again	4080	trace "perl_reload: loading config and database again";
2407	cf::cfg_load;	4081	cf::reload_config;
2408	cf::db_load;
2409		4082
2410	# load extensions	4083	trace "perl_reload: loading extensions";
2411	warn "load extensions";
2412	cf::load_extensions;	4084	cf::load_extensions;
2413		4085
2414	# reattach attachments to objects	4086	if ($REATTACH_ON_RELOAD) {
2415	warn "reattach";	4087	trace "perl_reload: reattaching attachments to objects/players";
2416	_global_reattach;	4088	_global_reattach; # objects, sockets
		4089	trace "perl_reload: reattaching attachments to maps";
2417	reattach $_ for values %MAP;	4090	reattach $_ for values %MAP;
		4091	trace "perl_reload: reattaching attachments to players";
		4092	reattach $_ for values %PLAYER;
		4093	}
		4094
		4095	cf::_post_init 1;
		4096
		4097	trace "perl_reload: leaving sync_job";
		4098
		4099	1
		4100	} or do {
		4101	error $@;
		4102	cf::cleanup "perl_reload: error, exiting.";
		4103	};
		4104
		4105	--$RELOAD;
		4106	}
		4107
		4108	$t1 = AE::time - $t1;
		4109	info "perl_reload: completed in ${t1}s\n";
		4110	};
		4111
		4112	our $RELOAD_WATCHER; # used only during reload
		4113
		4114	sub reload_perl() {
		4115	# doing reload synchronously and two reloads happen back-to-back,
		4116	# coro crashes during coro_state_free->destroy here.
		4117
		4118	$RELOAD_WATCHER ||= cf::async {
		4119	Coro::AIO::aio_wait cache_extensions;
		4120
		4121	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		4122	do_reload_perl;
		4123	undef $RELOAD_WATCHER;
		4124	};
2418	};	4125	};
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	}	4126	}
2471
2472	register "<global>", __PACKAGE__;
2473		4127
2474	register_command "reload" => sub {	4128	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	4129	my ($who, $arg) = @_;
2476		4130
2477	if ($who->flag (FLAG_WIZ)) {	4131	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("start of reload.");
2479	reload;
2480	$who->message ("end of reload.");	4132	$who->message ("reloading server.");
		4133	async {
		4134	$Coro::current->{desc} = "perl_reload";
		4135	reload_perl;
		4136	};
2481	}	4137	}
2482	};	4138	};
2483		4139
2484	unshift @INC, $LIBDIR;	4140	#############################################################################
2485		4141
2486	$TICK_WATCHER = Event->timer (	4142	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		4143
		4144	sub wait_for_tick() {
		4145	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4146
		4147	$WAIT_FOR_TICK->wait;
		4148	}
		4149
		4150	sub wait_for_tick_begin() {
		4151	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
		4152
		4153	my $signal = new Coro::Signal;
		4154	push @WAIT_FOR_TICK_BEGIN, $signal;
		4155	$signal->wait;
		4156	}
		4157
		4158	sub tick {
		4159	if ($Coro::current != $Coro::main) {
		4160	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4161	unless ++$bug_warning > 10;
		4162	return;
		4163	}
		4164
		4165	cf::one_tick; # one server iteration
		4166
		4167	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
		4168
		4169	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		4170	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		4171	Coro::async_pool {
		4172	$Coro::current->{desc} = "runtime saver";
		4173	write_runtime_sync
		4174	or error "ERROR: unable to write runtime file: $!";
		4175	};
		4176	}
		4177
		4178	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4179	$sig->send;
		4180	}
2496	$WAIT_FOR_TICK->broadcast;	4181	$WAIT_FOR_TICK->broadcast;
2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2498		4182
2499	# if we are delayed by four ticks or more, skip them all	4183	$LOAD = ($NOW - $TICK_START) / $TICK;
2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4184	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2501		4185
2502	$TICK_WATCHER->at ($NEXT_TICK);	4186	if (0) {
2503	$TICK_WATCHER->start;	4187	if ($NEXT_TICK) {
		4188	my $jitter = $TICK_START - $NEXT_TICK;
		4189	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4190	debug "jitter $JITTER\n";#d#
		4191	}
2504	},	4192	}
2505	);	4193	}
2506		4194
		4195	{
		4196	# configure BDB
		4197
		4198	BDB::min_parallel 16;
		4199	BDB::max_poll_reqs $TICK * 0.1;
		4200	#$AnyEvent::BDB::WATCHER->priority (1);
		4201
		4202	unless ($DB_ENV) {
		4203	$DB_ENV = BDB::db_env_create;
		4204	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4205	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4206	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4207	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4208	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4209
		4210	cf::sync_job {
		4211	eval {
		4212	BDB::db_env_open
		4213	$DB_ENV,
		4214	$BDBDIR,
		4215	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4216	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4217	0666;
		4218
		4219	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4220	};
		4221
		4222	cf::cleanup "db_env_open(db): $@" if $@;
		4223	};
		4224	}
		4225
		4226	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4227	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4228	};
		4229	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4230	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4231	};
		4232	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4233	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4234	};
		4235	}
		4236
		4237	{
		4238	# configure IO::AIO
		4239
		4240	IO::AIO::min_parallel 8;
2507	IO::AIO::max_poll_time $TICK * 0.2;	4241	IO::AIO::max_poll_time $TICK * 0.1;
		4242	undef $AnyEvent::AIO::WATCHER;
		4243	}
2508		4244
2509	Event->io (	4245	our $_log_backtrace;
2510	fd => IO::AIO::poll_fileno,	4246	our $_log_backtrace_last;
2511	poll => 'r',
2512	prio => 5,
2513	data => WF_AUTOCANCEL,
2514	cb => \&IO::AIO::poll_cb,
2515	);
2516		4247
2517	Event->timer (	4248	sub _log_backtrace {
2518	data => WF_AUTOCANCEL,	4249	my ($msg, @addr) = @_;
2519	after => 0,	4250
2520	interval => 10,	4251	$msg =~ s/\n$//;
2521	cb => sub {	4252
2522	(Coro::unblock_sub {	4253	if ($_log_backtrace_last eq $msg) {
2523	write_runtime	4254	LOG llevInfo, "[ABT] $msg\n";
2524	or warn "ERROR: unable to write runtime file: $!";	4255	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
		4256	# limit the # of concurrent backtraces
		4257	} elsif ($_log_backtrace < 2) {
		4258	$_log_backtrace_last = $msg;
		4259	++$_log_backtrace;
		4260	my $perl_bt = Carp::longmess $msg;
		4261	async {
		4262	$Coro::current->{desc} = "abt $msg";
		4263
		4264	my @bt = fork_call {
		4265	@addr = map { sprintf "%x", $_ } @addr;
		4266	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4267	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4268	or die "addr2line: $!";
		4269
		4270	my @funcs;
		4271	my @res = <$fh>;
		4272	chomp for @res;
		4273	while (@res) {
		4274	my ($func, $line) = splice @res, 0, 2, ();
		4275	push @funcs, "[$func] $line";
		4276	}
		4277
		4278	@funcs
		4279	};
		4280
		4281	LOG llevInfo, "[ABT] $perl_bt\n";
		4282	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4283	LOG llevInfo, "[ABT] $_\n" for @bt;
		4284	--$_log_backtrace;
2525	})->();	4285	};
		4286	} else {
		4287	LOG llevInfo, "[ABT] $msg\n";
		4288	LOG llevInfo, "[ABT] [overload, suppressed]\n";
2526	},	4289	}
2527	);	4290	}
		4291
		4292	# load additional modules
		4293	require "cf/$_.pm" for @EXTRA_MODULES;
		4294	cf::_connect_to_perl_2;
2528		4295
2529	END { cf::emergency_save }	4296	END { cf::emergency_save }
2530		4297
2531	1	4298	1
2532		4299

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