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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.278 by root, Mon Jun 11 21:38:14 2007 UTC vs.
Revision 1.587 by root, Wed Oct 31 19:09:47 2012 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Socket;	29	use Socket;
9	use Storable;	30	use EV;
10	use Event;
11	use Opcode;	31	use Opcode;
12	use Safe;	32	use Safe;
13	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
14		36
		37	use AnyEvent ();
		38	use AnyEvent::IO ();
		39	use AnyEvent::DNS ();
		40
15	use Coro 3.61 ();	41	use Coro ();
16	use Coro::State;	42	use Coro::State;
17	use Coro::Handle;	43	use Coro::Handle;
		44	use Coro::EV;
18	use Coro::Event;	45	use Coro::AnyEvent;
19	use Coro::Timer;	46	use Coro::Timer;
20	use Coro::Signal;	47	use Coro::Signal;
21	use Coro::Semaphore;	48	use Coro::Semaphore;
		49	use Coro::SemaphoreSet;
		50	use Coro::AnyEvent;
22	use Coro::AIO;	51	use Coro::AIO;
		52	use Coro::BDB 1.6;
23	use Coro::Storable;	53	use Coro::Storable;
		54	use Coro::Util ();
24		55
		56	use Guard ();
		57	use JSON::XS 2.01 ();
25	use BDB ();	58	use BDB ();
26	use Data::Dumper;	59	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	60	use Fcntl;
29	use YAML::Syck ();	61	use YAML::XS ();
30	use IO::AIO 2.32 ();	62	use IO::AIO ();
31	use Time::HiRes;	63	use Time::HiRes;
32	use Compress::LZF;	64	use Compress::LZF;
		65	use Digest::MD5 ();
		66
		67	AnyEvent::detect;
33		68
34	# configure various modules to our taste	69	# configure various modules to our taste
35	#	70	#
36	$Storable::canonical = 1; # reduce rsync transfers	71	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	72	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		73
		74	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		75
		76	# make sure c-lzf reinitialises itself
		77	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	78	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		79
40	$Event::Eval = 1; # no idea why this is required, but it is	80	# strictly for debugging
41		81	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		82
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	83	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		84
		85	our @ORIG_INC;
48		86
49	our %COMMAND = ();	87	our %COMMAND = ();
50	our %COMMAND_TIME = ();	88	our %COMMAND_TIME = ();
51		89
52	our @EXTS = (); # list of extension package names	90	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	91	our %EXTCMD = ();
		92	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	93	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	94	our %EXT_MAP = (); # pluggable maps
56		95
57	our $RELOAD; # number of reloads so far	96	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	97	our @EVENT;
		98	our @REFLECT; # set by XS
		99	our %REFLECT; # set by us
59		100
60	our $CONFDIR = confdir;	101	our $CONFDIR = confdir;
		102
61	our $DATADIR = datadir;	103	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	104	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	105	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	106	our $MAPDIR = "$DATADIR/" . mapdir;
		107
65	our $LOCALDIR = localdir;	108	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	109	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	110	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	111	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	112	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	113	our $BDBDIR = "$LOCALDIR/db";
		114	our $PIDFILE = "$LOCALDIR/pid";
		115	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		116
		117	#our %RESOURCE; # unused
		118
		119	our $OUTPUT_RATE_MIN = 3000;
		120	our $OUTPUT_RATE_MAX = 1000000;
		121
		122	our $MAX_LINKS = 32; # how many chained exits to follow
		123	our $VERBOSE_IO = 1;
71		124
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	125	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	126	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	127	our $NEXT_TICK;
		128	our $USE_FSYNC = 1; # use fsync to write maps - default on
		129
		130	our $BDB_DEADLOCK_WATCHER;
		131	our $BDB_CHECKPOINT_WATCHER;
		132	our $BDB_TRICKLE_WATCHER;
		133	our $DB_ENV;
		134
		135	our @EXTRA_MODULES = qw(pod match mapscript incloader);
		136
		137	our %CFG;
		138	our %EXT_CFG; # cfgkeyname => [var-ref, defaultvalue]
		139
		140	our $UPTIME; $UPTIME ||= time;
		141	our $RUNTIME = 0;
		142	our $SERVER_TICK = 0;
77	our $NOW;	143	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off
79		144
80	our $BDB_POLL_WATCHER;	145	our (%PLAYER, %PLAYER_LOADING); # all users
81	our $DB_ENV;	146	our (%MAP, %MAP_LOADING ); # all maps
82
83	our %CFG;
84
85	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;
87
88	our %PLAYER; # all users
89	our %MAP; # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	147	our $LINK_MAP; # the special {link} map, which is always available
91		148
92	# used to convert map paths into valid unix filenames by replacing / by ∕	149	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	150	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		151
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	152	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	153	our $LOADAVG; # same thing, but with alpha-smoothing
		154	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	155	our $TICK_START; # for load detecting purposes
		156
		157	our @POST_INIT;
		158
		159	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		160	our $REALLY_UNLOOP; # never set to true, please :)
		161
		162	our $WAIT_FOR_TICK = new Coro::Signal;
		163	our @WAIT_FOR_TICK_BEGIN;
98		164
99	binmode STDOUT;	165	binmode STDOUT;
100	binmode STDERR;	166	binmode STDERR;
101		167
102	# read virtual server time, if available	168	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	169	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	170	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	171	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	172	$RUNTIME = <$fh> + 0.;
107	}	173	}
		174
		175	eval "sub TICK() { $TICK } 1" or die;
108		176
109	mkdir $_	177	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	178	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		179
112	our $EMERGENCY_POSITION;	180	our $EMERGENCY_POSITION;
113		181
114	sub cf::map::normalise;	182	sub cf::map::normalise;
115		183
		184	sub in_main() {
		185	$Coro::current == $Coro::main
		186	}
		187
116	#############################################################################	188	#############################################################################
117		189
		190	%REFLECT = ();
		191	for (@REFLECT) {
		192	my $reflect = JSON::XS::decode_json $_;
		193	$REFLECT{$reflect->{class}} = $reflect;
		194	}
		195
		196	# this is decidedly evil
		197	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
		198
		199	#############################################################################
		200
118	=head2 GLOBAL VARIABLES	201	=head2 GLOBAL VARIABLES
119		202
120	=over 4	203	=over 4
121		204
122	=item $cf::UPTIME	205	=item $cf::UPTIME
123		206
124	The timestamp of the server start (so not actually an uptime).	207	The timestamp of the server start (so not actually an "uptime").
		208
		209	=item $cf::SERVER_TICK
		210
		211	An unsigned integer that starts at zero when the server is started and is
		212	incremented on every tick.
		213
		214	=item $cf::NOW
		215
		216	The (real) time of the last (current) server tick - updated before and
		217	after tick processing, so this is useful only as a rough "what time is it
		218	now" estimate.
		219
		220	=item $cf::TICK
		221
		222	The interval between each server tick, in seconds.
125		223
126	=item $cf::RUNTIME	224	=item $cf::RUNTIME
127		225
128	The time this server has run, starts at 0 and is increased by $cf::TICK on	226	The time this server has run, starts at 0 and is increased by $cf::TICK on
129	every server tick.	227	every server tick.
…		…
135	Various directories - "/etc", read-only install directory, perl-library	233	Various directories - "/etc", read-only install directory, perl-library
136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",	234	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
137	unique-items directory, player file directory, random maps directory and	235	unique-items directory, player file directory, random maps directory and
138	database environment.	236	database environment.
139		237
140	=item $cf::NOW
141
142	The time of the last (current) server tick.
143
144	=item $cf::TICK
145
146	The interval between server ticks, in seconds.
147
148	=item $cf::LOADAVG	238	=item $cf::LOADAVG
149		239
150	The current CPU load on the server (alpha-smoothed), as a value between 0	240	The current CPU load on the server (alpha-smoothed), as a value between 0
151	(none) and 1 (overloaded), indicating how much time is spent on processing	241	(none) and 1 (overloaded), indicating how much time is spent on processing
152	objects per tick. Healthy values are < 0.5.	242	objects per tick. Healthy values are < 0.5.
…		…
155		245
156	The raw value load value from the last tick.	246	The raw value load value from the last tick.
157		247
158	=item %cf::CFG	248	=item %cf::CFG
159		249
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	250	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	251	from wherever your confdir points to.
162		252
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	253	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		254
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	255	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	256	returns directly I<after> the tick processing (and consequently, can only wake one thread
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	257	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		258
		259	Note that cf::Wait_for_tick will immediately return when the server is not
		260	ticking, making it suitable for small pauses in threads that need to run
		261	when the server is paused. If that is not applicable (i.e. you I<really>
		262	want to wait, use C<$cf::WAIT_FOR_TICK>).
		263
		264	=item $cf::WAIT_FOR_TICK
		265
		266	Note that C<cf::wait_for_tick> is probably the correct thing to use. This
		267	variable contains a L<Coro::Signal> that is broadcats after every server
		268	tick. Calling C<< ->wait >> on it will suspend the caller until after the
		269	next server tick.
		270
		271	=cut
		272
		273	sub wait_for_tick();
		274	sub wait_for_tick_begin();
		275
		276	=item @cf::INVOKE_RESULTS
		277
		278	This array contains the results of the last C<invoke ()> call. When
		279	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		280	that call.
		281
		282	=item %cf::REFLECT
		283
		284	Contains, for each (C++) class name, a hash reference with information
		285	about object members (methods, scalars, arrays and flags) and other
		286	metadata, which is useful for introspection.
		287
169	=back	288	=back
170		289
171	=cut	290	=cut
172		291
173	BEGIN {	292	sub error(@) { LOG llevError, join "", @_ }
174	*CORE::GLOBAL::warn = sub {	293	sub warn (@) { LOG llevWarn , join "", @_ }
		294	sub info (@) { LOG llevInfo , join "", @_ }
		295	sub debug(@) { LOG llevDebug, join "", @_ }
		296	sub trace(@) { LOG llevTrace, join "", @_ }
		297
		298	$Coro::State::WARNHOOK = sub {
175	my $msg = join "", @_;	299	my $msg = join "", @_;
176		300
177	$msg .= "\n"	301	$msg .= "\n"
178	unless $msg =~ /\n$/;	302	unless $msg =~ /\n$/;
179		303
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	304	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		305
182	utf8::encode $msg;
183	LOG llevError, $msg;	306	LOG llevWarn, $msg;
184	};	307	};
185	}	308
		309	$Coro::State::DIEHOOK = sub {
		310	return unless $^S eq 0; # "eq", not "=="
		311
		312	error Carp::longmess $_[0];
		313
		314	if (in_main) {#d#
		315	error "DIEHOOK called in main context, Coro bug?\n";#d#
		316	return;#d#
		317	}#d#
		318
		319	# kill coroutine otherwise
		320	Coro::terminate
		321	};
186		322
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	323	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	324	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	325	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	326	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
…		…
197	for my $pkg (qw(	333	for my $pkg (qw(
198	cf::global cf::attachable	334	cf::global cf::attachable
199	cf::object cf::object::player	335	cf::object cf::object::player
200	cf::client cf::player	336	cf::client cf::player
201	cf::arch cf::living	337	cf::arch cf::living
		338	cf::map cf::mapspace
202	cf::map cf::party cf::region	339	cf::party cf::region
203	)) {	340	)) {
204	no strict 'refs';
205	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	341	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
206	}	342	}
207		343
208	$Event::DIED = sub {	344	$EV::DIED = sub {
209	warn "error in event callback: @_";	345	warn "error in event callback: $@";
210	};	346	};
		347
		348	#############################################################################
		349
		350	sub fork_call(&@);
		351	sub get_slot($;$$);
		352
		353	#############################################################################
211		354
212	=head2 UTILITY FUNCTIONS	355	=head2 UTILITY FUNCTIONS
213		356
214	=over 4	357	=over 4
215		358
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	377	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	378	$d
236	} || "[unable to dump $_[0]: '$@']";	379	} || "[unable to dump $_[0]: '$@']";
237	}	380	}
238		381
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working	382	=item $scalar = cf::load_file $path
240		383
		384	Loads the given file from path and returns its contents. Croaks on error
		385	and can block.
		386
		387	=cut
		388
		389	sub load_file($) {
		390	0 <= aio_load $_[0], my $data
		391	or Carp::croak "$_[0]: $!";
		392
		393	$data
		394	}
		395
		396	=item $success = cf::replace_file $path, $data, $sync
		397
		398	Atomically replaces the file at the given $path with new $data, and
		399	optionally $sync the data to disk before replacing the file.
		400
		401	=cut
		402
		403	sub replace_file($$;$) {
		404	my ($path, $data, $sync) = @_;
		405
		406	my $lock = cf::lock_acquire ("replace_file:$path");
		407
		408	my $fh = aio_open "$path~", Fcntl::O_WRONLY | Fcntl::O_CREAT | Fcntl::O_TRUNC, 0644
		409	or return;
		410
		411	$data = $data->() if ref $data;
		412
		413	length $data == aio_write $fh, 0, (length $data), $data, 0
		414	or return;
		415
		416	!$sync
		417	or !aio_fsync $fh
		418	or return;
		419
		420	aio_close $fh
		421	and return;
		422
		423	aio_rename "$path~", $path
		424	and return;
		425
		426	if ($sync) {
		427	$path =~ s%/[^/]*$%%;
		428	aio_pathsync $path;
		429	}
		430
		431	1
		432	}
		433
241	=item $ref = cf::from_json $json	434	=item $ref = cf::decode_json $json
242		435
243	Converts a JSON string into the corresponding perl data structure.	436	Converts a JSON string into the corresponding perl data structure.
244		437
245	=item $json = cf::to_json $ref	438	=item $json = cf::encode_json $ref
246		439
247	Converts a perl data structure into its JSON representation.	440	Converts a perl data structure into its JSON representation.
248		441
		442	=cut
		443
		444	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		445
		446	sub encode_json($) { $json_coder->encode ($_[0]) }
		447	sub decode_json($) { $json_coder->decode ($_[0]) }
		448
		449	=item $ref = cf::decode_storable $scalar
		450
		451	Same as Coro::Storable::thaw, so blocks.
		452
		453	=cut
		454
		455	BEGIN { *decode_storable = \&Coro::Storable::thaw }
		456
		457	=item $ref = cf::decode_yaml $scalar
		458
		459	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		460
		461	=cut
		462
		463	sub decode_yaml($) {
		464	fork_call { YAML::XS::Load $_[0] } @_
		465	}
		466
		467	=item $scalar = cf::unlzf $scalar
		468
		469	Same as Compress::LZF::compress, but takes server ticks into account, so
		470	blocks.
		471
		472	=cut
		473
		474	sub unlzf($) {
		475	# we assume 100mb/s minimum decompression speed (noncompressible data on a ~2ghz machine)
		476	cf::get_slot +(length $_[0]) / 100_000_000, 0, "unlzf";
		477	Compress::LZF::decompress $_[0]
		478	}
		479
		480	=item cf::post_init { BLOCK }
		481
		482	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		483	but I<before> the server starts ticking again.
		484
		485	The codeblock will have a single boolean argument to indicate whether this
		486	is a reload or not.
		487
		488	=cut
		489
		490	sub post_init(&) {
		491	push @POST_INIT, shift;
		492	}
		493
		494	sub _post_init {
		495	trace "running post_init jobs";
		496
		497	# run them in parallel...
		498
		499	my @join;
		500
		501	while () {
		502	push @join, map &Coro::async ($_, 0), @POST_INIT;
		503	@POST_INIT = ();
		504
		505	@join or last;
		506
		507	(pop @join)->join;
		508	}
		509	}
		510
249	=item cf::lock_wait $string	511	=item cf::lock_wait $string
250		512
251	Wait until the given lock is available. See cf::lock_acquire.	513	Wait until the given lock is available. See cf::lock_acquire.
252		514
253	=item my $lock = cf::lock_acquire $string	515	=item my $lock = cf::lock_acquire $string
254		516
255	Wait until the given lock is available and then acquires it and returns	517	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	518	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	519	for example when the coroutine gets canceled), the lock is automatically
258	returned.	520	returned.
259		521
		522	Locks are *not* recursive, locking from the same coro twice results in a
		523	deadlocked coro.
		524
260	Lock names should begin with a unique identifier (for example, cf::map::find	525	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	526	uses map_find and cf::map::load uses map_load).
262		527
263	=item $locked = cf::lock_active $string	528	=item $locked = cf::lock_active $string
264		529
265	Return true if the lock is currently active, i.e. somebody has locked it.	530	Return true if the lock is currently active, i.e. somebody has locked it.
266		531
267	=cut	532	=cut
268		533
269	our %LOCK;	534	our $LOCKS = new Coro::SemaphoreSet;
270		535
271	sub lock_wait($) {	536	sub lock_wait($) {
272	my ($key) = @_;	537	$LOCKS->wait ($_[0]);
273
274	# wait for lock, if any
275	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;
278	}
279	}	538	}
280		539
281	sub lock_acquire($) {	540	sub lock_acquire($) {
282	my ($key) = @_;	541	$LOCKS->guard ($_[0])
283
284	# wait, to be sure we are not locked
285	lock_wait $key;
286
287	$LOCK{$key} = [];
288
289	Coro::guard {
290	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };
292	}
293	}	542	}
294		543
295	sub lock_active($) {	544	sub lock_active($) {
296	my ($key) = @_;	545	$LOCKS->count ($_[0]) < 1
297
298	! ! $LOCK{$key}
299	}	546	}
300		547
301	sub freeze_mainloop {	548	sub freeze_mainloop {
302	return unless $TICK_WATCHER->is_active;	549	tick_inhibit_inc;
303		550
304	my $guard = Coro::guard {	551	&Guard::guard (\&tick_inhibit_dec);
305	$TICK_WATCHER->start;	552	}
		553
		554	=item cf::periodic $interval, $cb
		555
		556	Like EV::periodic, but randomly selects a starting point so that the actions
		557	get spread over time.
		558
		559	=cut
		560
		561	sub periodic($$) {
		562	my ($interval, $cb) = @_;
		563
		564	my $start = rand List::Util::min 180, $interval;
		565
		566	EV::periodic $start, $interval, 0, $cb
		567	}
		568
		569	=item cf::get_slot $time[, $priority[, $name]]
		570
		571	Allocate $time seconds of blocking CPU time at priority C<$priority>
		572	(default: 0): This call blocks and returns only when you have at least
		573	C<$time> seconds of cpu time till the next tick. The slot is only valid
		574	till the next cede.
		575
		576	Background jobs should use a priority les than zero, interactive jobs
		577	should use 100 or more.
		578
		579	The optional C<$name> can be used to identify the job to run. It might be
		580	used for statistical purposes and should identify the same time-class.
		581
		582	Useful for short background jobs.
		583
		584	=cut
		585
		586	our @SLOT_QUEUE;
		587	our $SLOT_QUEUE;
		588	our $SLOT_DECAY = 0.9;
		589
		590	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		591	$SLOT_QUEUE = Coro::async {
		592	$Coro::current->desc ("timeslot manager");
		593
		594	my $signal = new Coro::Signal;
		595	my $busy;
		596
		597	while () {
		598	next_job:
		599
		600	my $avail = cf::till_tick;
		601
		602	for (0 .. $#SLOT_QUEUE) {
		603	if ($SLOT_QUEUE[$_][0] <= $avail) {
		604	$busy = 0;
		605	my $job = splice @SLOT_QUEUE, $_, 1, ();
		606	$job->[2]->send;
		607	Coro::cede;
		608	goto next_job;
		609	} else {
		610	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		611	}
		612	}
		613
		614	if (@SLOT_QUEUE) {
		615	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		616	$WAIT_FOR_TICK->wait;
		617	} else {
		618	$busy = 0;
		619	Coro::schedule;
		620	}
306	};	621	}
307	$TICK_WATCHER->stop;	622	};
308	$guard	623
		624	sub get_slot($;$$) {
		625	return if tick_inhibit || $Coro::current == $Coro::main;
		626
		627	my ($time, $pri, $name) = @_;
		628
		629	$time = clamp $time, 0.01, $TICK * .6;
		630
		631	my $sig = new Coro::Signal;
		632
		633	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		634	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		635	$SLOT_QUEUE->ready;
		636	$sig->wait;
309	}	637	}
310		638
311	=item cf::async { BLOCK }	639	=item cf::async { BLOCK }
312		640
313	Currently the same as Coro::async_pool, meaning you cannot use	641	Currently the same as Coro::async_pool, meaning you cannot use
…		…
318		646
319	BEGIN { *async = \&Coro::async_pool }	647	BEGIN { *async = \&Coro::async_pool }
320		648
321	=item cf::sync_job { BLOCK }	649	=item cf::sync_job { BLOCK }
322		650
323	The design of crossfire+ requires that the main coro ($Coro::main) is	651	The design of Deliantra requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	652	is always able to handle events or runnable, as Deliantra is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	653	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		654	acceptable.
326		655
327	If it must be done, put the blocking parts into C<sync_job>. This will run	656	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	657	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	658	server will be frozen during this time, so the block should either finish
330	fast or be very important.	659	fast or be very important.
…		…
332	=cut	661	=cut
333		662
334	sub sync_job(&) {	663	sub sync_job(&) {
335	my ($job) = @_;	664	my ($job) = @_;
336		665
337	if ($Coro::current == $Coro::main) {	666	if (in_main) {
338	my $time = Event::time;	667	my $time = AE::time;
339		668
340	# this is the main coro, too bad, we have to block	669	# this is the main coro, too bad, we have to block
341	# till the operation succeeds, freezing the server :/	670	# till the operation succeeds, freezing the server :/
342		671
343	# TODO: use suspend/resume instead	672	#LOG llevError, Carp::longmess "sync job";#d#
344	# (but this is cancel-safe)	673
345	my $freeze_guard = freeze_mainloop;	674	my $freeze_guard = freeze_mainloop;
346		675
347	my $busy = 1;	676	my $busy = 1;
348	my @res;	677	my @res;
349		678
350	(async {	679	(async {
		680	$Coro::current->desc ("sync job coro");
351	@res = eval { $job->() };	681	@res = eval { $job->() };
352	warn $@ if $@;	682	error $@ if $@;
353	undef $busy;	683	undef $busy;
354	})->prio (Coro::PRIO_MAX);	684	})->prio (Coro::PRIO_MAX);
355		685
356	while ($busy) {	686	while ($busy) {
357	Coro::cede or Event::one_event;	687	if (Coro::nready) {
		688	Coro::cede_notself;
		689	} else {
		690	EV::loop EV::LOOP_ONESHOT;
358	}	691	}
		692	}
359		693
360	$time = Event::time - $time;	694	my $time = AE::time - $time;
361		695
362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
364
365	$tick_start += $time; # do not account sync jobs to server load	696	$TICK_START += $time; # do not account sync jobs to server load
366		697
367	wantarray ? @res : $res[0]	698	wantarray ? @res : $res[0]
368	} else {	699	} else {
369	# we are in another coroutine, how wonderful, everything just works	700	# we are in another coroutine, how wonderful, everything just works
370		701
…		…
390	$EXT_CORO{$coro+0} = $coro;	721	$EXT_CORO{$coro+0} = $coro;
391		722
392	$coro	723	$coro
393	}	724	}
394		725
395	sub write_runtime {	726	=item fork_call { }, @args
396	my $runtime = "$LOCALDIR/runtime";
397		727
398	# first touch the runtime file to show we are still running:	728	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	729	process, returning the results. Everything must be serialisable with
		730	Coro::Storable. May, of course, block. Note that the executed sub may
		731	never block itself or use any form of event handling.
400		732
401	IO::AIO::aio_utime $runtime, undef, undef;	733	=cut
402		734
403	my $guard = cf::lock_acquire "write_runtime";	735	sub post_fork {
		736	reset_signals;
		737	}
404		738
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	739	sub fork_call(&@) {
406	or return;	740	my ($cb, @args) = @_;
407		741
408	my $value = $cf::RUNTIME + 90 + 10;	742	# we seemingly have to make a local copy of the whole thing,
409	# 10 is the runtime save interval, for a monotonic clock	743	# otherwise perl prematurely frees the stuff :/
410	# 60 allows for the watchdog to kill the server.	744	# TODO: investigate and fix (likely this will be rather laborious)
411		745
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	746	my @res = Coro::Util::fork_eval {
413	and return;	747	cf::post_fork;
		748	&$cb
		749	} @args;
414		750
415	# always fsync - this file is important	751	wantarray ? @res : $res[-1]
416	aio_fsync $fh	752	}
417	and return;
418		753
419	# touch it again to show we are up-to-date	754	sub objinfo {
420	aio_utime $fh, undef, undef;
421
422	close $fh
423	or return;
424
425	aio_rename "$runtime~", $runtime
426	and return;
427
428	warn "runtime file written.\n";
429
430	1	755	(
		756	"counter value" => cf::object::object_count,
		757	"objects created" => cf::object::create_count,
		758	"objects destroyed" => cf::object::destroy_count,
		759	"freelist size" => cf::object::free_count,
		760	"allocated objects" => cf::object::objects_size,
		761	"active objects" => cf::object::actives_size,
		762	)
		763	}
		764
		765	=item $coin = coin_from_name $name
		766
		767	=cut
		768
		769	our %coin_alias = (
		770	"silver" => "silvercoin",
		771	"silvercoin" => "silvercoin",
		772	"silvercoins" => "silvercoin",
		773	"gold" => "goldcoin",
		774	"goldcoin" => "goldcoin",
		775	"goldcoins" => "goldcoin",
		776	"platinum" => "platinacoin",
		777	"platinumcoin" => "platinacoin",
		778	"platinumcoins" => "platinacoin",
		779	"platina" => "platinacoin",
		780	"platinacoin" => "platinacoin",
		781	"platinacoins" => "platinacoin",
		782	"royalty" => "royalty",
		783	"royalties" => "royalty",
		784	);
		785
		786	sub coin_from_name($) {
		787	$coin_alias{$_[0]}
		788	? cf::arch::find $coin_alias{$_[0]}
		789	: undef
		790	}
		791
		792	=item $value = cf::db_get $family => $key
		793
		794	Returns a single value from the environment database.
		795
		796	=item cf::db_put $family => $key => $value
		797
		798	Stores the given C<$value> in the family. It can currently store binary
		799	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		800
		801	=item $db = cf::db_table "name"
		802
		803	Create and/or open a new database table. The string must not be "db" and must be unique
		804	within each server.
		805
		806	=cut
		807
		808	sub db_table($) {
		809	cf::error "db_get called from main context"
		810	if $Coro::current == $Coro::main;
		811
		812	my ($name) = @_;
		813	my $db = BDB::db_create $DB_ENV;
		814
		815	eval {
		816	$db->set_flags (BDB::CHKSUM);
		817
		818	utf8::encode $name;
		819	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		820	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		821	cf::cleanup "db_open(db): $!" if $!;
		822	};
		823	cf::cleanup "db_open(db): $@" if $@;
		824
		825	$db
		826	}
		827
		828	our $DB;
		829
		830	sub db_init {
		831	$DB ||= db_table "db";
		832	}
		833
		834	sub db_get($$) {
		835	my $key = "$_[0]/$_[1]";
		836
		837	cf::error "db_get called from main context"
		838	if $Coro::current == $Coro::main;
		839
		840	BDB::db_get $DB, undef, $key, my $data;
		841
		842	$! ? ()
		843	: $data
		844	}
		845
		846	sub db_put($$$) {
		847	BDB::dbreq_pri 4;
		848	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		849	}
		850
		851	=item cf::cache $id => [$paths...], $processversion => $process
		852
		853	Generic caching function that returns the value of the resource $id,
		854	caching and regenerating as required.
		855
		856	This function can block.
		857
		858	=cut
		859
		860	sub cache {
		861	my ($id, $src, $processversion, $process) = @_;
		862
		863	my $meta =
		864	join "\x00",
		865	$processversion,
		866	map {
		867	aio_stat $_
		868	and Carp::croak "$_: $!";
		869
		870	($_, (stat _)[7,9])
		871	} @$src;
		872
		873	my $dbmeta = db_get cache => "$id/meta";
		874	if ($dbmeta ne $meta) {
		875	# changed, we may need to process
		876
		877	my @data;
		878	my $md5;
		879
		880	for (0 .. $#$src) {
		881	$data[$_] = load_file $src->[$_];
		882	}
		883
		884	# if processing is expensive, check
		885	# checksum first
		886	if (1) {
		887	$md5 =
		888	join "\x00",
		889	$processversion,
		890	map {
		891	cf::cede_to_tick;
		892	($src->[$_], Digest::MD5::md5_hex $data[$_])
		893	} 0.. $#$src;
		894
		895
		896	my $dbmd5 = db_get cache => "$id/md5";
		897	if ($dbmd5 eq $md5) {
		898	db_put cache => "$id/meta", $meta;
		899
		900	return db_get cache => "$id/data";
		901	}
		902	}
		903
		904	my $t1 = Time::HiRes::time;
		905	my $data = $process->(\@data);
		906	my $t2 = Time::HiRes::time;
		907
		908	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		909
		910	db_put cache => "$id/data", $data;
		911	db_put cache => "$id/md5" , $md5;
		912	db_put cache => "$id/meta", $meta;
		913
		914	return $data;
		915	}
		916
		917	db_get cache => "$id/data"
431	}	918	}
432		919
433	=item cf::datalog type => key => value, ...	920	=item cf::datalog type => key => value, ...
434		921
435	Log a datalog packet of the given type with the given key-value pairs.	922	Log a datalog packet of the given type with the given key-value pairs.
436		923
437	=cut	924	=cut
438		925
439	sub datalog($@) {	926	sub datalog($@) {
440	my ($type, %kv) = @_;	927	my ($type, %kv) = @_;
441	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	928	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
442	}	929	}
443		930
444	=back	931	=back
445		932
446	=cut	933	=cut
447		934
448	#############################################################################	935	#############################################################################
449		936
450	=head2 ATTACHABLE OBJECTS	937	=head2 ATTACHABLE OBJECTS
451		938
452	Many objects in crossfire are so-called attachable objects. That means you can	939	Many objects in deliantra are so-called attachable objects. That means you can
453	attach callbacks/event handlers (a collection of which is called an "attachment")	940	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	941	to it. All such attachable objects support the following methods.
455		942
456	In the following description, CLASS can be any of C<global>, C<object>	943	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	944	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	945	Deliantra).
459		946
460	=over 4	947	=over 4
461		948
462	=item $attachable->attach ($attachment, key => $value...)	949	=item $attachable->attach ($attachment, key => $value...)
463		950
…		…
507	=item cf::CLASS::attachment $name, ...	994	=item cf::CLASS::attachment $name, ...
508		995
509	Register an attachment by C<$name> through which attachable objects of the	996	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	997	given CLASS can refer to this attachment.
511		998
512	Some classes such as crossfire maps and objects can specify attachments	999	Some classes such as deliantra maps and objects can specify attachments
513	that are attached at load/instantiate time, thus the need for a name.	1000	that are attached at load/instantiate time, thus the need for a name.
514		1001
515	These calls expect any number of the following handler/hook descriptions:	1002	These calls expect any number of the following handler/hook descriptions:
516		1003
517	=over 4	1004	=over 4
…		…
641		1128
642	} elsif (exists $cb_id{$type}) {	1129	} elsif (exists $cb_id{$type}) {
643	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1130	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
644		1131
645	} elsif (ref $type) {	1132	} elsif (ref $type) {
646	warn "attaching objects not supported, ignoring.\n";	1133	error "attaching objects not supported, ignoring.\n";
647		1134
648	} else {	1135	} else {
649	shift @arg;	1136	shift @arg;
650	warn "attach argument '$type' not supported, ignoring.\n";	1137	error "attach argument '$type' not supported, ignoring.\n";
651	}	1138	}
652	}	1139	}
653	}	1140	}
654		1141
655	sub _object_attach {	1142	sub _object_attach {
…		…
665	_attach $registry, $klass, @attach;	1152	_attach $registry, $klass, @attach;
666	}	1153	}
667		1154
668	$obj->{$name} = \%arg;	1155	$obj->{$name} = \%arg;
669	} else {	1156	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	1157	info "object uses attachment '$name' which is not available, postponing.\n";
671	}	1158	}
672		1159
673	$obj->{_attachment}{$name} = undef;	1160	$obj->{_attachment}{$name} = undef;
674	}	1161	}
675		1162
…		…
715	";	1202	";
716	die if $@;	1203	die if $@;
717	}	1204	}
718		1205
719	our $override;	1206	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1207	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1208
722	sub override {	1209	sub override {
723	$override = 1;	1210	$override = 1;
724	@invoke_results = ();	1211	@INVOKE_RESULTS = (@_);
725	}	1212	}
726		1213
727	sub do_invoke {	1214	sub do_invoke {
728	my $event = shift;	1215	my $event = shift;
729	my $callbacks = shift;	1216	my $callbacks = shift;
730		1217
731	@invoke_results = ();	1218	@INVOKE_RESULTS = ();
732		1219
733	local $override;	1220	local $override;
734		1221
735	for (@$callbacks) {	1222	for (@$callbacks) {
736	eval { &{$_->[1]} };	1223	eval { &{$_->[1]} };
737		1224
738	if ($@) {	1225	if ($@) {
739	warn "$@";
740	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1226	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
741	override;	1227	override;
742	}	1228	}
743		1229
744	return 1 if $override;	1230	return 1 if $override;
745	}	1231	}
746		1232
747	0	1233	0
748	}	1234	}
749		1235
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1236	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1237
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1238	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1239
754	Generate an object-specific event with the given arguments.	1240	Generate an object-specific event with the given arguments.
755		1241
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1242	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1243	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1244	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1245
760	=back	1246	=back
761		1247
762	=cut	1248	=cut
763		1249
764	#############################################################################	1250	#############################################################################
765	# object support	1251	# object support
		1252
		1253	sub _object_equal($$);
		1254	sub _object_equal($$) {
		1255	my ($a, $b) = @_;
		1256
		1257	return 0 unless (ref $a) eq (ref $b);
		1258
		1259	if ("HASH" eq ref $a) {
		1260	my @ka = keys %$a;
		1261	my @kb = keys %$b;
		1262
		1263	return 0 if @ka != @kb;
		1264
		1265	for (0 .. $#ka) {
		1266	return 0 unless $ka[$_] eq $kb[$_];
		1267	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1268	}
		1269
		1270	} elsif ("ARRAY" eq ref $a) {
		1271
		1272	return 0 if @$a != @$b;
		1273
		1274	for (0 .. $#$a) {
		1275	return 0 unless _object_equal $a->[$_], $b->[$_];
		1276	}
		1277
		1278	} elsif ($a ne $b) {
		1279	return 0;
		1280	}
		1281
		1282	1
		1283	}
		1284
		1285	our $SLOW_MERGES;#d#
		1286	sub _can_merge {
		1287	my ($ob1, $ob2) = @_;
		1288
		1289	++$SLOW_MERGES;#d#
		1290
		1291	# we do the slow way here
		1292	return _object_equal $ob1, $ob2
		1293	}
766		1294
767	sub reattach {	1295	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1296	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1297	my ($obj) = @_;
770		1298
		1299	# no longer needed after getting rid of delete_package?
771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1300	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1301
773	my $registry = $obj->registry;	1302	my $registry = $obj->registry;
774		1303
775	@$registry = ();	1304	@$registry = ();
776		1305
…		…
781	for (@$attach) {	1310	for (@$attach) {
782	my ($klass, @attach) = @$_;	1311	my ($klass, @attach) = @$_;
783	_attach $registry, $klass, @attach;	1312	_attach $registry, $klass, @attach;
784	}	1313	}
785	} else {	1314	} else {
786	warn "object uses attachment '$name' that is not available, postponing.\n";	1315	info "object uses attachment '$name' that is not available, postponing.\n";
787	}	1316	}
788	}	1317	}
789	}	1318	}
790		1319
791	cf::attachable->attach (	1320	cf::attachable->attach (
792	prio => -1000000,	1321	prio => -1000000,
793	on_instantiate => sub {	1322	on_instantiate => sub {
794	my ($obj, $data) = @_;	1323	my ($obj, $data) = @_;
795		1324
796	$data = from_json $data;	1325	$data = decode_json $data;
797		1326
798	for (@$data) {	1327	for (@$data) {
799	my ($name, $args) = @$_;	1328	my ($name, $args) = @$_;
800		1329
801	$obj->attach ($name, %{$args || {} });	1330	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1346	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1347	my ($filename, $rdata, $objs) = @_;
819		1348
820	sync_job {	1349	sync_job {
821	if (length $$rdata) {	1350	if (length $$rdata) {
		1351	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1352	trace sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1353	$decname, length $$rdata, scalar @$objs
		1354	if $VERBOSE_IO;
824		1355
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1356	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1357	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1358	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh if $cf::USE_FSYNC;	1359	if ($cf::USE_FSYNC) {
		1360	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1361	aio_fsync $fh;
		1362	}
829	close $fh;	1363	aio_close $fh;
830		1364
831	if (@$objs) {	1365	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1366	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1367	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1368	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1369	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh if $cf::USE_FSYNC;	1370	if ($cf::USE_FSYNC) {
		1371	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1372	aio_fsync $fh;
		1373	}
837	close $fh;	1374	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1375	aio_rename "$filename.pst~", "$filename.pst";
839	}	1376	}
840	} else {	1377	} else {
841	aio_unlink "$filename.pst";	1378	aio_unlink "$filename.pst";
842	}	1379	}
843		1380
844	aio_rename "$filename~", $filename;	1381	aio_rename "$filename~", $filename;
		1382
		1383	$filename =~ s%/[^/]+$%%;
		1384	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1385	} else {
846	warn "FATAL: $filename~: $!\n";	1386	error "unable to save objects: $filename~: $!\n";
847	}	1387	}
848	} else {	1388	} else {
849	aio_unlink $filename;	1389	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1390	aio_unlink "$filename.pst";
851	}	1391	}
852	}	1392	};
853	}	1393	}
854		1394
855	sub object_freezer_as_string {	1395	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1396	my ($rdata, $objs) = @_;
857		1397
…		…
869	or return;	1409	or return;
870		1410
871	unless (aio_stat "$filename.pst") {	1411	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1412	(aio_load "$filename.pst", $av) >= 0
873	or return;	1413	or return;
		1414
874	$av = eval { (Storable::thaw $av)->{objs} };	1415	my $st = eval { Coro::Storable::thaw $av };
		1416	$av = $st->{objs};
875	}	1417	}
876		1418
		1419	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1420	trace sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};	1421	$decname, length $data, scalar @{$av || []}
		1422	if $VERBOSE_IO;
		1423
879	return ($data, $av);	1424	($data, $av)
880	}	1425	}
		1426
		1427	=head2 COMMAND CALLBACKS
		1428
		1429	=over 4
		1430
		1431	=cut
881		1432
882	#############################################################################	1433	#############################################################################
883	# command handling &c	1434	# command handling &c
884		1435
885	=item cf::register_command $name => \&callback($ob,$args);	1436	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1449	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1450	}
900		1451
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1452	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1453
903	Register a callbackf ro execution when the client sends an extcmd packet.	1454	Register a callback for execution when the client sends an (synchronous)
		1455	extcmd packet. Ext commands will be processed in the order they are
		1456	received by the server, like other user commands. The first argument is
		1457	the logged-in player. Ext commands can only be processed after a player
		1458	has logged in successfully.
904		1459
905	If the callback returns something, it is sent back as if reply was being	1460	If the callback returns something, it is sent back as if reply was being
906	called.	1461	called.
907		1462
		1463	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1464
		1465	Register a callback for execution when the client sends an (asynchronous)
		1466	exticmd packet. Exti commands are processed by the server as soon as they
		1467	are received, i.e. out of order w.r.t. other commands. The first argument
		1468	is a client socket. Exti commands can be received anytime, even before
		1469	log-in.
		1470
		1471	If the callback returns something, it is sent back as if reply was being
		1472	called.
		1473
908	=cut	1474	=cut
909		1475
910	sub register_extcmd {	1476	sub register_extcmd {
911	my ($name, $cb) = @_;	1477	my ($name, $cb) = @_;
912		1478
913	$EXTCMD{$name} = $cb;	1479	$EXTCMD{$name} = $cb;
914	}	1480	}
915		1481
		1482	sub register_exticmd {
		1483	my ($name, $cb) = @_;
		1484
		1485	$EXTICMD{$name} = $cb;
		1486	}
		1487
		1488	use File::Glob ();
		1489
916	cf::player->attach (	1490	cf::player->attach (
917	on_command => sub {	1491	on_unknown_command => sub {
918	my ($pl, $name, $params) = @_;	1492	my ($pl, $name, $params) = @_;
919		1493
920	my $cb = $COMMAND{$name}	1494	my $cb = $COMMAND{$name}
921	or return;	1495	or return;
922		1496
…		…
927	cf::override;	1501	cf::override;
928	},	1502	},
929	on_extcmd => sub {	1503	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1504	my ($pl, $buf) = @_;
931		1505
932	my $msg = eval { from_json $buf };	1506	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1507
934	if (ref $msg) {	1508	if (ref $msg) {
		1509	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		1510
		1511	my @reply;
		1512
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1513	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1514	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1515	}
		1516
		1517	$pl->ext_reply ($reply, @reply)
		1518	if $reply;
		1519
940	} else {	1520	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1521	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1522	}
943		1523
944	cf::override;	1524	cf::override;
945	},	1525	},
946	);	1526	);
947		1527
		1528	# "readahead" all extensions
		1529	sub cache_extensions {
		1530	my $grp = IO::AIO::aio_group;
		1531
		1532	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
		1533	for (grep /\.ext$/, @{$_[0]}) {
		1534	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1535	}
		1536	};
		1537
		1538	$grp
		1539	}
		1540
		1541	sub _ext_cfg_reg($$$$) {
		1542	my ($rvar, $varname, $cfgname, $default) = @_;
		1543
		1544	$cfgname = lc $varname
		1545	unless length $cfgname;
		1546
		1547	$EXT_CFG{$cfgname} = [$rvar, $default];
		1548
		1549	$$rvar = exists $CFG{$cfgname} ? $CFG{$cfgname} : $default;
		1550	}
		1551
948	sub load_extensions {	1552	sub load_extensions {
		1553	info "loading extensions...";
		1554
		1555	%EXT_CFG = ();
		1556
949	cf::sync_job {	1557	cf::sync_job {
950	my %todo;	1558	my %todo;
951		1559
952	for my $path (<$LIBDIR/*.ext>) {	1560	for my $path (<$LIBDIR/*.ext>) {
953	next unless -r $path;	1561	next unless -r $path;
…		…
967	path => $path,	1575	path => $path,
968	base => $base,	1576	base => $base,
969	pkg => $pkg,	1577	pkg => $pkg,
970	);	1578	);
971		1579
972	$ext{meta} = { map { split /=/, $_, 2 } split /\s+/, $1 }	1580	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
973	if $source =~ /^#!.*?perl.*?#\s*(.*)$/;	1581	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
974		1582
975	$ext{source} =	1583	$ext{source} =
976	"package $pkg; use strict; use utf8;\n"	1584	"package $pkg; use common::sense;\n"
977	. "#line 1 \"$path\"\n{\n"	1585	. "#line 1 \"$path\"\n{\n"
978	. $source	1586	. $source
979	. "\n};\n1";	1587	. "\n};\n1";
980		1588
981	$todo{$base} = \%ext;	1589	$todo{$base} = \%ext;
982	}	1590	}
983		1591
		1592	my $pass = 0;
984	my %done;	1593	my %done;
985	while (%todo) {	1594	while (%todo) {
986	my $progress;	1595	my $progress;
987		1596
		1597	++$pass;
		1598
		1599	ext:
988	while (my ($k, $v) = each %todo) {	1600	while (my ($k, $v) = each %todo) {
989	for (split /,\s*/, $ext{meta}{depends}) {	1601	for (split /,\s*/, $v->{meta}{depends}) {
990	goto skip	1602	next ext
991	unless exists $done{$_};	1603	unless exists $done{$_};
992	}	1604	}
993		1605
994	warn "... loading '$k' into '$v->{pkg}'\n";	1606	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
995		1607
996	unless (eval $v->{source}) {	1608	my $source = $v->{source};
		1609
		1610	# support "CONF varname :confname = default" pseudo-statements
		1611	$source =~ s{
		1612	^ CONF \s+ ([^\s:=]+) \s* (?:: \s* ([^\s:=]+) \s* )? = ([^\n#]+)
		1613	}{
		1614	"our \$$1; BEGIN { cf::_ext_cfg_reg \\\$$1, q\x00$1\x00, q\x00$2\x00, $3 }";
		1615	}gmxe;
		1616
		1617	my $active = eval $source;
		1618
		1619	if (length $@) {
997	my $msg = $@ ? "$v->{path}: $@\n"	1620	error "$v->{path}: $@\n";
998	: "extension disabled.\n";
999		1621
		1622	cf::cleanup "mandatory extension '$k' failed to load, exiting."
1000	if (exists $v->{meta}{mandatory}) {	1623	if exists $v->{meta}{mandatory};
1001	warn $msg;	1624
1002	warn "mandatory extension failed to load, exiting.\n";	1625	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1003	exit 1;	1626	delete $todo{$k};
1004	}	1627	} else {
1005		1628	$done{$k} = delete $todo{$k};
1006	die $msg;	1629	push @EXTS, $v->{pkg};
		1630	$progress = 1;
		1631
		1632	info "$v->{base}: extension inactive.\n"
		1633	unless $active;
1007	}	1634	}
1008
1009	$done{$k} = delete $todo{$k};
1010	push @EXTS, $v->{pkg};
1011	}	1635	}
1012		1636
1013	skip:	1637	unless ($progress) {
1014	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"	1638	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1015	unless $progress;	1639
		1640	while (my ($k, $v) = each %todo) {
		1641	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1642	if exists $v->{meta}{mandatory};
		1643	}
		1644
		1645	last;
		1646	}
1016	}	1647	}
1017	};	1648	};
1018	}	1649	}
1019		1650
1020	#############################################################################	1651	#############################################################################
1021		1652
		1653	=back
		1654
1022	=head2 CORE EXTENSIONS	1655	=head2 CORE EXTENSIONS
1023		1656
1024	Functions and methods that extend core crossfire objects.	1657	Functions and methods that extend core deliantra objects.
1025		1658
1026	=cut	1659	=cut
1027		1660
1028	package cf::player;	1661	package cf::player;
1029		1662
1030	use Coro::AIO;	1663	use Coro::AIO;
1031		1664
1032	=head3 cf::player	1665	=head3 cf::player
1033		1666
1034	=over 4	1667	=over 4
		1668
		1669	=item cf::player::num_playing
		1670
		1671	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1672
		1673	=cut
		1674
		1675	sub num_playing {
		1676	scalar grep
		1677	$_->ob->map
		1678	&& !$_->hidden
		1679	&& !$_->ob->flag (cf::FLAG_WIZ),
		1680	cf::player::list
		1681	}
1035		1682
1036	=item cf::player::find $login	1683	=item cf::player::find $login
1037		1684
1038	Returns the given player object, loading it if necessary (might block).	1685	Returns the given player object, loading it if necessary (might block).
1039		1686
…		…
1058		1705
1059	sub exists($) {	1706	sub exists($) {
1060	my ($login) = @_;	1707	my ($login) = @_;
1061		1708
1062	$cf::PLAYER{$login}	1709	$cf::PLAYER{$login}
1063	or cf::sync_job { !aio_stat path $login }	1710	or !aio_stat path $login
1064	}	1711	}
1065		1712
1066	sub find($) {	1713	sub find($) {
1067	return $cf::PLAYER{$_[0]} || do {	1714	return $cf::PLAYER{$_[0]} || do {
1068	my $login = $_[0];	1715	my $login = $_[0];
…		…
1075	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1722	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1076	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1723	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1077	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1724	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1078	aio_unlink +(playerdir $login) . "/$login.pl";	1725	aio_unlink +(playerdir $login) . "/$login.pl";
1079		1726
1080	my $pl = load_pl path $login	1727	my $f = new_from_file cf::object::thawer path $login
1081	or return;	1728	or return;
		1729
		1730	my $pl = cf::player::load_pl $f
		1731	or return;
		1732
		1733	local $cf::PLAYER_LOADING{$login} = $pl;
		1734	$f->resolve_delayed_derefs;
1082	$cf::PLAYER{$login} = $pl	1735	$cf::PLAYER{$login} = $pl
1083	}	1736	}
1084	}	1737	}
1085	}	1738	}
		1739
		1740	cf::player->attach (
		1741	on_load => sub {
		1742	my ($pl, $path) = @_;
		1743
		1744	# restore slots saved in save, below
		1745	my $slots = delete $pl->{_slots};
		1746
		1747	$pl->ob->current_weapon ($slots->[0]);
		1748	$pl->combat_ob ($slots->[1]);
		1749	$pl->ranged_ob ($slots->[2]);
		1750	},
		1751	);
1086		1752
1087	sub save($) {	1753	sub save($) {
1088	my ($pl) = @_;	1754	my ($pl) = @_;
1089		1755
1090	return if $pl->{deny_save};	1756	return if $pl->{deny_save};
…		…
1095	return if $pl->{deny_save};	1761	return if $pl->{deny_save};
1096		1762
1097	aio_mkdir playerdir $pl, 0770;	1763	aio_mkdir playerdir $pl, 0770;
1098	$pl->{last_save} = $cf::RUNTIME;	1764	$pl->{last_save} = $cf::RUNTIME;
1099		1765
		1766	cf::get_slot 0.01;
		1767
		1768	# save slots, to be restored later
		1769	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1770
1100	$pl->save_pl ($path);	1771	$pl->save_pl ($path);
1101	Coro::cede;	1772	cf::cede_to_tick;
1102	}	1773	}
1103		1774
1104	sub new($) {	1775	sub new($) {
1105	my ($login) = @_;	1776	my ($login) = @_;
1106		1777
…		…
1112	$cf::PLAYER{$login} = $self;	1783	$cf::PLAYER{$login} = $self;
1113		1784
1114	$self	1785	$self
1115	}	1786	}
1116		1787
		1788	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1789
		1790	=cut
		1791
		1792	sub send_msg {
		1793	my $ns = shift->ns
		1794	or return;
		1795	$ns->send_msg (@_);
		1796	}
		1797
1117	=item $pl->quit_character	1798	=item $pl->quit_character
1118		1799
1119	Nukes the player without looking back. If logged in, the connection will	1800	Nukes the player without looking back. If logged in, the connection will
1120	be destroyed. May block for a long time.	1801	be destroyed. May block for a long time.
1121		1802
…		…
1125	my ($pl) = @_;	1806	my ($pl) = @_;
1126		1807
1127	my $name = $pl->ob->name;	1808	my $name = $pl->ob->name;
1128		1809
1129	$pl->{deny_save} = 1;	1810	$pl->{deny_save} = 1;
1130	$pl->password ("*"); # this should lock out the player until we nuked the dir	1811	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1131		1812
1132	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1813	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1133	$pl->deactivate;	1814	$pl->deactivate;
		1815
		1816	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1134	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1817	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1818	ext::highscore::check ($pl->ob);
		1819
1135	$pl->ns->destroy if $pl->ns;	1820	$pl->ns->destroy if $pl->ns;
1136		1821
1137	my $path = playerdir $pl;	1822	my $path = playerdir $pl;
1138	my $temp = "$path~$cf::RUNTIME~deleting~";	1823	my $temp = "$path~$cf::RUNTIME~deleting~";
1139	aio_rename $path, $temp;	1824	aio_rename $path, $temp;
…		…
1174	or return [];	1859	or return [];
1175		1860
1176	my @logins;	1861	my @logins;
1177		1862
1178	for my $login (@$dirs) {	1863	for my $login (@$dirs) {
		1864	my $path = path $login;
		1865
		1866	# a .pst is a dead give-away for a valid player
		1867	# if no pst file found, open and chekc for blocked users
		1868	if (aio_stat "$path.pst") {
1179	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1869	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1180	aio_read $fh, 0, 512, my $buf, 0 or next;	1870	aio_read $fh, 0, 512, my $buf, 0 or next;
1181	$buf !~ /^password -------------$/m or next; # official not-valid tag	1871	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1872	}
1182		1873
1183	utf8::decode $login;	1874	utf8::decode $login;
1184	push @logins, $login;	1875	push @logins, $login;
1185	}	1876	}
1186		1877
1187	\@logins	1878	\@logins
1188	}	1879	}
1189		1880
1190	=item $player->maps	1881	=item $player->maps
		1882
		1883	=item cf::player::maps $login
1191		1884
1192	Returns an arrayref of map paths that are private for this	1885	Returns an arrayref of map paths that are private for this
1193	player. May block.	1886	player. May block.
1194		1887
1195	=cut	1888	=cut
…		…
1213	}	1906	}
1214		1907
1215	\@paths	1908	\@paths
1216	}	1909	}
1217		1910
		1911	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1912
		1913	Expand deliantra pod fragments into protocol xml.
		1914
1218	=item $player->ext_reply ($msgid, %msg)	1915	=item $player->ext_reply ($msgid, @msg)
1219		1916
1220	Sends an ext reply to the player.	1917	Sends an ext reply to the player.
1221		1918
1222	=cut	1919	=cut
1223		1920
1224	sub ext_reply($$%) {	1921	sub ext_reply($$@) {
1225	my ($self, $id, %msg) = @_;	1922	my ($self, $id, @msg) = @_;
1226		1923
1227	$msg{msgid} = $id;	1924	$self->ns->ext_reply ($id, @msg)
1228
1229	$self->send ("ext " . cf::to_json \%msg);
1230	}	1925	}
1231		1926
1232	=item $player->ext_event ($type, %msg)	1927	=item $player->ext_msg ($type, @msg)
1233		1928
1234	Sends an ext event to the client.	1929	Sends an ext event to the client.
1235		1930
1236	=cut	1931	=cut
1237		1932
1238	sub ext_event($$%) {	1933	sub ext_msg($$@) {
1239	my ($self, $type, %msg) = @_;	1934	my ($self, $type, @msg) = @_;
1240		1935
1241	$self->ns->ext_event ($type, %msg);	1936	$self->ns->ext_msg ($type, @msg);
1242	}	1937	}
1243		1938
1244	=head3 cf::region	1939	=head3 cf::region
1245		1940
1246	=over 4	1941	=over 4
…		…
1249		1944
1250	package cf::region;	1945	package cf::region;
1251		1946
1252	=item cf::region::find_by_path $path	1947	=item cf::region::find_by_path $path
1253		1948
1254	Tries to decuce the probable region for a map knowing only its path.	1949	Tries to decuce the likely region for a map knowing only its path.
1255		1950
1256	=cut	1951	=cut
1257		1952
1258	sub find_by_path($) {	1953	sub find_by_path($) {
1259	my ($path) = @_;	1954	my ($path) = @_;
1260		1955
		1956	$path =~ s/^~[^\/]*//; # skip ~login
		1957
1261	my ($match, $specificity);	1958	my ($match, $specificity);
1262		1959
1263	for my $region (list) {	1960	for my $region (list) {
1264	if ($region->match && $path =~ $region->match) {	1961	if ($region->{match} && $path =~ $region->{match}) {
1265	($match, $specificity) = ($region, $region->specificity)	1962	($match, $specificity) = ($region, $region->specificity)
1266	if $region->specificity > $specificity;	1963	if $region->specificity > $specificity;
1267	}	1964	}
1268	}	1965	}
1269		1966
…		…
1290	our $MAX_RESET = 3600;	1987	our $MAX_RESET = 3600;
1291	our $DEFAULT_RESET = 3000;	1988	our $DEFAULT_RESET = 3000;
1292		1989
1293	sub generate_random_map {	1990	sub generate_random_map {
1294	my ($self, $rmp) = @_;	1991	my ($self, $rmp) = @_;
1295	# mit "rum" bekleckern, nicht	1992
		1993	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1994
1296	$self->_create_random_map (	1995	$self->_create_random_map ($rmp);
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}), $rmp->{custom}
1308	)
1309	}	1996	}
1310		1997
1311	=item cf::map->register ($regex, $prio)	1998	=item cf::map->register ($regex, $prio)
1312		1999
1313	Register a handler for the map path matching the given regex at the	2000	Register a handler for the map path matching the given regex at the
…		…
1318		2005
1319	sub register {	2006	sub register {
1320	my (undef, $regex, $prio) = @_;	2007	my (undef, $regex, $prio) = @_;
1321	my $pkg = caller;	2008	my $pkg = caller;
1322		2009
1323	no strict;
1324	push @{"$pkg\::ISA"}, __PACKAGE__;	2010	push @{"$pkg\::ISA"}, __PACKAGE__;
1325		2011
1326	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	2012	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1327	}	2013	}
1328		2014
1329	# also paths starting with '/'	2015	# also paths starting with '/'
1330	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	2016	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1331		2017
1332	sub thawer_merge {	2018	sub thawer_merge {
1333	my ($self, $merge) = @_;	2019	my ($self, $merge) = @_;
1334		2020
1335	# we have to keep some variables in memory intact	2021	# we have to keep some variables in memory intact
…		…
1340	}	2026	}
1341		2027
1342	sub normalise {	2028	sub normalise {
1343	my ($path, $base) = @_;	2029	my ($path, $base) = @_;
1344		2030
1345	$path = "$path"; # make sure its a string	2031	$path = "$path"; # make sure it's a string
1346		2032
1347	$path =~ s/\.map$//;	2033	$path =~ s/\.map$//;
1348		2034
1349	# map plan:	2035	# map plan:
1350	#	2036	#
…		…
1365	$base =~ s{[^/]+/?$}{};	2051	$base =~ s{[^/]+/?$}{};
1366	$path = "$base/$path";	2052	$path = "$base/$path";
1367	}	2053	}
1368		2054
1369	for ($path) {	2055	for ($path) {
1370	redo if s{//}{/};
1371	redo if s{/\.?/}{/};	2056	redo if s{/\.?/}{/};
1372	redo if s{/[^/]+/\.\./}{/};	2057	redo if s{/[^/]+/\.\./}{/};
1373	}	2058	}
1374		2059
1375	$path	2060	$path
…		…
1389	$self->init; # pass $1 etc.	2074	$self->init; # pass $1 etc.
1390	return $self;	2075	return $self;
1391	}	2076	}
1392	}	2077	}
1393		2078
1394	Carp::carp "unable to resolve path '$path' (base '$base').";	2079	Carp::cluck "unable to resolve path '$path' (base '$base')";
1395	()	2080	()
1396	}	2081	}
1397		2082
		2083	# may re-bless or do other evil things
1398	sub init {	2084	sub init {
1399	my ($self) = @_;	2085	my ($self) = @_;
1400		2086
1401	$self	2087	$self
1402	}	2088	}
…		…
1421		2107
1422	# the temporary/swap location	2108	# the temporary/swap location
1423	sub save_path {	2109	sub save_path {
1424	my ($self) = @_;	2110	my ($self) = @_;
1425		2111
1426	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2112	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1427	"$TMPDIR/$path.map"	2113	"$TMPDIR/$path.map"
1428	}	2114	}
1429		2115
1430	# the unique path, undef == no special unique path	2116	# the unique path, undef == no special unique path
1431	sub uniq_path {	2117	sub uniq_path {
1432	my ($self) = @_;	2118	my ($self) = @_;
1433		2119
1434	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2120	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1435	"$UNIQUEDIR/$path"	2121	"$UNIQUEDIR/$path"
1436	}
1437
1438	# and all this just because we cannot iterate over
1439	# all maps in C++...
1440	sub change_all_map_light {
1441	my ($change) = @_;
1442
1443	$_->change_map_light ($change)
1444	for grep $_->outdoor, values %cf::MAP;
1445	}	2122	}
1446		2123
1447	sub decay_objects {	2124	sub decay_objects {
1448	my ($self) = @_;	2125	my ($self) = @_;
1449		2126
…		…
1462		2139
1463	sub load_header_from($) {	2140	sub load_header_from($) {
1464	my ($self, $path) = @_;	2141	my ($self, $path) = @_;
1465		2142
1466	utf8::encode $path;	2143	utf8::encode $path;
1467	#aio_open $path, O_RDONLY, 0	2144	my $f = new_from_file cf::object::thawer $path
1468	# or return;
1469
1470	$self->_load_header ($path)
1471	or return;	2145	or return;
1472		2146
		2147	$self->_load_header ($f)
		2148	or return;
		2149
		2150	local $MAP_LOADING{$self->{path}} = $self;
		2151	$f->resolve_delayed_derefs;
		2152
1473	$self->{load_path} = $path;	2153	$self->{load_path} = $path;
1474		2154
1475	1	2155	1
1476	}	2156	}
1477		2157
		2158	# used to laod the header of an original map
1478	sub load_header_orig {	2159	sub load_header_orig {
1479	my ($self) = @_;	2160	my ($self) = @_;
1480		2161
1481	$self->load_header_from ($self->load_path)	2162	$self->load_header_from ($self->load_path)
1482	}	2163	}
1483		2164
		2165	# used to laod the header of an instantiated map
1484	sub load_header_temp {	2166	sub load_header_temp {
1485	my ($self) = @_;	2167	my ($self) = @_;
1486		2168
1487	$self->load_header_from ($self->save_path)	2169	$self->load_header_from ($self->save_path)
1488	}	2170	}
1489		2171
		2172	# called after loading the header from an instantiated map
1490	sub prepare_temp {	2173	sub prepare_temp {
1491	my ($self) = @_;	2174	my ($self) = @_;
1492		2175
1493	$self->last_access ((delete $self->{last_access})	2176	$self->last_access ((delete $self->{last_access})
1494	|| $cf::RUNTIME); #d#	2177	|| $cf::RUNTIME); #d#
1495	# safety	2178	# safety
1496	$self->{instantiate_time} = $cf::RUNTIME	2179	$self->{instantiate_time} = $cf::RUNTIME
1497	if $self->{instantiate_time} > $cf::RUNTIME;	2180	if $self->{instantiate_time} > $cf::RUNTIME;
1498	}	2181	}
1499		2182
		2183	# called after loading the header from an original map
1500	sub prepare_orig {	2184	sub prepare_orig {
1501	my ($self) = @_;	2185	my ($self) = @_;
1502		2186
1503	$self->{load_original} = 1;	2187	$self->{load_original} = 1;
1504	$self->{instantiate_time} = $cf::RUNTIME;	2188	$self->{instantiate_time} = $cf::RUNTIME;
…		…
1528		2212
1529	sub find;	2213	sub find;
1530	sub find {	2214	sub find {
1531	my ($path, $origin) = @_;	2215	my ($path, $origin) = @_;
1532		2216
		2217	cf::cede_to_tick;
		2218
1533	$path = normalise $path, $origin && $origin->path;	2219	$path = normalise $path, $origin;
1534		2220
		2221	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1535	cf::lock_wait "map_find:$path";	2222	my $guard2 = cf::lock_acquire "map_find:$path";
1536		2223
1537	$cf::MAP{$path} || do {	2224	$cf::MAP{$path} || do {
1538	my $guard = cf::lock_acquire "map_find:$path";
1539	my $map = new_from_path cf::map $path	2225	my $map = new_from_path cf::map $path
1540	or return;	2226	or return;
1541		2227
1542	$map->{last_save} = $cf::RUNTIME;	2228	$map->{last_save} = $cf::RUNTIME;
1543		2229
…		…
1545	or return;	2231	or return;
1546		2232
1547	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)	2233	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1548	# doing this can freeze the server in a sync job, obviously	2234	# doing this can freeze the server in a sync job, obviously
1549	#$cf::WAIT_FOR_TICK->wait;	2235	#$cf::WAIT_FOR_TICK->wait;
		2236	undef $guard2;
		2237	undef $guard1;
1550	$map->reset;	2238	$map->reset;
1551	undef $guard;
1552	return find $path;	2239	return find $path;
1553	}	2240	}
1554		2241
1555	$cf::MAP{$path} = $map	2242	$cf::MAP{$path} = $map
1556	}	2243	}
1557	}	2244	}
1558		2245
1559	sub pre_load { }	2246	sub pre_load { }
1560	sub post_load { }	2247	#sub post_load { } # XS
1561		2248
1562	sub load {	2249	sub load {
1563	my ($self) = @_;	2250	my ($self) = @_;
1564		2251
1565	local $self->{deny_reset} = 1; # loading can take a long time	2252	local $self->{deny_reset} = 1; # loading can take a long time
1566		2253
1567	my $path = $self->{path};	2254	my $path = $self->{path};
1568		2255
1569	{	2256	{
1570	my $guard = cf::lock_acquire "map_load:$path";	2257	my $guard = cf::lock_acquire "map_data:$path";
1571		2258
		2259	return unless $self->valid;
1572	return if $self->in_memory != cf::MAP_SWAPPED;	2260	return unless $self->state == cf::MAP_SWAPPED;
1573
1574	$self->in_memory (cf::MAP_LOADING);
1575		2261
1576	$self->alloc;	2262	$self->alloc;
1577		2263
1578	$self->pre_load;	2264	$self->pre_load;
1579	Coro::cede;	2265	cf::cede_to_tick;
1580		2266
1581	$self->_load_objects ($self->{load_path}, 1)	2267	if (exists $self->{load_path}) {
		2268	my $f = new_from_file cf::object::thawer $self->{load_path};
		2269	$f->skip_block;
		2270	$self->_load_objects ($f)
1582	or return;	2271	or return;
1583		2272
1584	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2273	$self->post_load_original
1585	if delete $self->{load_original};	2274	if delete $self->{load_original};
1586		2275
1587	if (my $uniq = $self->uniq_path) {	2276	if (my $uniq = $self->uniq_path) {
1588	utf8::encode $uniq;	2277	utf8::encode $uniq;
1589	if (aio_open $uniq, O_RDONLY, 0) {	2278	unless (aio_stat $uniq) {
		2279	if (my $f = new_from_file cf::object::thawer $uniq) {
1590	$self->clear_unique_items;	2280	$self->clear_unique_items;
1591	$self->_load_objects ($uniq, 0);	2281	$self->_load_objects ($f);
		2282	$f->resolve_delayed_derefs;
		2283	}
		2284	}
1592	}	2285	}
1593	}
1594		2286
1595	Coro::cede;	2287	$f->resolve_delayed_derefs;
		2288	} else {
		2289	$self->post_load_original
		2290	if delete $self->{load_original};
		2291	}
		2292
		2293	$self->state (cf::MAP_INACTIVE);
		2294
		2295	cf::cede_to_tick;
1596	# now do the right thing for maps	2296	# now do the right thing for maps
1597	$self->link_multipart_objects;	2297	$self->link_multipart_objects;
1598	$self->difficulty ($self->estimate_difficulty)	2298	$self->difficulty ($self->estimate_difficulty)
1599	unless $self->difficulty;	2299	unless $self->difficulty;
1600	Coro::cede;	2300	cf::cede_to_tick;
1601		2301
1602	unless ($self->{deny_activate}) {	2302	unless ($self->{deny_activate}) {
1603	$self->decay_objects;	2303	$self->decay_objects;
1604	$self->fix_auto_apply;	2304	$self->fix_auto_apply;
1605	$self->update_buttons;	2305	$self->update_buttons;
1606	Coro::cede;	2306	cf::cede_to_tick;
1607	$self->set_darkness_map;	2307	#$self->activate; # no longer activate maps automatically
1608	Coro::cede;
1609	$self->activate;
1610	}	2308	}
1611		2309
1612	$self->in_memory (cf::MAP_IN_MEMORY);	2310	$self->{last_save} = $cf::RUNTIME;
		2311	$self->last_access ($cf::RUNTIME);
1613	}	2312	}
1614		2313
1615	$self->post_load;	2314	$self->post_load;
1616	}
1617		2315
		2316	1
		2317	}
		2318
		2319	# customize the map for a given player, i.e.
		2320	# return the _real_ map. used by e.g. per-player
		2321	# maps to change the path to ~playername/mappath
1618	sub customise_for {	2322	sub customise_for {
1619	my ($self, $ob) = @_;	2323	my ($self, $ob) = @_;
1620		2324
1621	return find "~" . $ob->name . "/" . $self->{path}	2325	return find "~" . $ob->name . "/" . $self->{path}
1622	if $self->per_player;	2326	if $self->per_player;
…		…
1625	# if $self->per_party;	2329	# if $self->per_party;
1626		2330
1627	$self	2331	$self
1628	}	2332	}
1629		2333
1630	# find and load all maps in the 3x3 area around a map
1631	sub load_diag {
1632	my ($map) = @_;
1633
1634	my @diag; # diagonal neighbours
1635
1636	for (0 .. 3) {
1637	my $neigh = $map->tile_path ($_)
1638	or next;
1639	$neigh = find $neigh, $map
1640	or next;
1641	$neigh->load;
1642
1643	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1644	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1645	}
1646
1647	for (@diag) {
1648	my $neigh = find @$_
1649	or next;
1650	$neigh->load;
1651	}
1652	}
1653
1654	sub find_sync {	2334	sub find_sync {
1655	my ($path, $origin) = @_;	2335	my ($path, $origin) = @_;
1656		2336
1657	cf::sync_job { find $path, $origin }	2337	# it's a bug to call this from the main context
		2338	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2339	if $Coro::current == $Coro::main;
		2340
		2341	find $path, $origin
1658	}	2342	}
1659		2343
1660	sub do_load_sync {	2344	sub do_load_sync {
1661	my ($map) = @_;	2345	my ($map) = @_;
1662		2346
1663	cf::sync_job { $map->load };	2347	# it's a bug to call this from the main context
		2348	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2349	if $Coro::current == $Coro::main;
		2350
		2351	$map->load;
1664	}	2352	}
1665		2353
1666	our %MAP_PREFETCH;	2354	our %MAP_PREFETCH;
1667	our $MAP_PREFETCHER = undef;	2355	our $MAP_PREFETCHER = undef;
1668		2356
1669	sub find_async {	2357	sub find_async {
1670	my ($path, $origin) = @_;	2358	my ($path, $origin, $load) = @_;
1671		2359
1672	$path = normalise $path, $origin && $origin->{path};	2360	$path = normalise $path, $origin;
1673		2361
1674	if (my $map = $cf::MAP{$path}) {	2362	if (my $map = $cf::MAP{$path}) {
1675	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2363	return $map if !$load || $map->linkable;
1676	}	2364	}
1677		2365
1678	undef $MAP_PREFETCH{$path};	2366	$MAP_PREFETCH{$path} |= $load;
		2367
1679	$MAP_PREFETCHER ||= cf::async {	2368	$MAP_PREFETCHER ||= cf::async {
		2369	$Coro::current->{desc} = "map prefetcher";
		2370
1680	while (%MAP_PREFETCH) {	2371	while (%MAP_PREFETCH) {
1681	for my $path (keys %MAP_PREFETCH) {	2372	while (my ($k, $v) = each %MAP_PREFETCH) {
1682	my $map = find $path	2373	if (my $map = find $k) {
1683	or next;
1684	$map->load;	2374	$map->load if $v;
		2375	}
1685		2376
1686	delete $MAP_PREFETCH{$path};	2377	delete $MAP_PREFETCH{$k};
1687	}	2378	}
1688	}	2379	}
1689	undef $MAP_PREFETCHER;	2380	undef $MAP_PREFETCHER;
1690	};	2381	};
1691	$MAP_PREFETCHER->prio (6);	2382	$MAP_PREFETCHER->prio (6);
1692		2383
1693	()	2384	()
1694	}	2385	}
1695		2386
		2387	# common code, used by both ->save and ->swapout
1696	sub save {	2388	sub _save {
1697	my ($self) = @_;	2389	my ($self) = @_;
1698
1699	my $lock = cf::lock_acquire "map_data:" . $self->path;
1700		2390
1701	$self->{last_save} = $cf::RUNTIME;	2391	$self->{last_save} = $cf::RUNTIME;
1702		2392
1703	return unless $self->dirty;	2393	return unless $self->dirty;
1704		2394
…		…
1710	return if $self->{deny_save};	2400	return if $self->{deny_save};
1711		2401
1712	local $self->{last_access} = $self->last_access;#d#	2402	local $self->{last_access} = $self->last_access;#d#
1713		2403
1714	cf::async {	2404	cf::async {
		2405	$Coro::current->{desc} = "map player save";
1715	$_->contr->save for $self->players;	2406	$_->contr->save for $self->players;
1716	};	2407	};
		2408
		2409	cf::get_slot 0.02;
1717		2410
1718	if ($uniq) {	2411	if ($uniq) {
1719	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2412	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1720	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2413	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1721	} else {	2414	} else {
1722	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2415	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1723	}	2416	}
1724	}	2417	}
1725		2418
		2419	sub save {
		2420	my ($self) = @_;
		2421
		2422	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2423
		2424	$self->_save;
		2425	}
		2426
1726	sub swap_out {	2427	sub swap_out {
1727	my ($self) = @_;	2428	my ($self) = @_;
1728		2429
1729	# save first because save cedes
1730	$self->save;
1731
1732	my $lock = cf::lock_acquire "map_data:" . $self->path;	2430	my $lock = cf::lock_acquire "map_data:$self->{path}";
1733		2431
		2432	return if !$self->linkable;
		2433	return if $self->{deny_save};
1734	return if $self->players;	2434	return if $self->players;
1735	return if $self->in_memory != cf::MAP_IN_MEMORY;
1736	return if $self->{deny_save};
1737		2435
		2436	# first deactivate the map and "unlink" it from the core
		2437	$self->deactivate;
		2438	$_->clear_links_to ($self) for values %cf::MAP;
		2439	$self->state (cf::MAP_SWAPPED);
		2440
		2441	# then atomically save
		2442	$self->_save;
		2443
		2444	# then free the map
1738	$self->clear;	2445	$self->clear;
1739	$self->in_memory (cf::MAP_SWAPPED);
1740	}	2446	}
1741		2447
1742	sub reset_at {	2448	sub reset_at {
1743	my ($self) = @_;	2449	my ($self) = @_;
1744		2450
…		…
1762		2468
1763	my $lock = cf::lock_acquire "map_data:$self->{path}";	2469	my $lock = cf::lock_acquire "map_data:$self->{path}";
1764		2470
1765	return if $self->players;	2471	return if $self->players;
1766		2472
1767	warn "resetting map ", $self->path;	2473	cf::trace "resetting map ", $self->path, "\n";
1768		2474
1769	$self->in_memory (cf::MAP_SWAPPED);	2475	$self->state (cf::MAP_SWAPPED);
1770		2476
1771	# need to save uniques path	2477	# need to save uniques path
1772	unless ($self->{deny_save}) {	2478	unless ($self->{deny_save}) {
1773	my $uniq = $self->uniq_path; utf8::encode $uniq;	2479	my $uniq = $self->uniq_path; utf8::encode $uniq;
1774		2480
…		…
1776	if $uniq;	2482	if $uniq;
1777	}	2483	}
1778		2484
1779	delete $cf::MAP{$self->path};	2485	delete $cf::MAP{$self->path};
1780		2486
		2487	$self->deactivate;
		2488	$_->clear_links_to ($self) for values %cf::MAP;
1781	$self->clear;	2489	$self->clear;
1782
1783	$_->clear_links_to ($self) for values %cf::MAP;
1784		2490
1785	$self->unlink_save;	2491	$self->unlink_save;
1786	$self->destroy;	2492	$self->destroy;
1787	}	2493	}
1788		2494
1789	my $nuke_counter = "aaaa";	2495	my $nuke_counter = "aaaa";
1790		2496
1791	sub nuke {	2497	sub nuke {
1792	my ($self) = @_;	2498	my ($self) = @_;
1793		2499
		2500	{
		2501	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2502
1794	delete $cf::MAP{$self->path};	2503	delete $cf::MAP{$self->path};
1795		2504
1796	$self->unlink_save;	2505	$self->unlink_save;
1797		2506
1798	bless $self, "cf::map";	2507	bless $self, "cf::map::wrap";
1799	delete $self->{deny_reset};	2508	delete $self->{deny_reset};
1800	$self->{deny_save} = 1;	2509	$self->{deny_save} = 1;
1801	$self->reset_timeout (1);	2510	$self->reset_timeout (1);
1802	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2511	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1803		2512
1804	$cf::MAP{$self->path} = $self;	2513	$cf::MAP{$self->path} = $self;
		2514	}
1805		2515
1806	$self->reset; # polite request, might not happen	2516	$self->reset; # polite request, might not happen
1807	}	2517	}
1808		2518
1809	=item $maps = cf::map::tmp_maps	2519	=item $maps = cf::map::tmp_maps
…		…
1851		2561
1852	sub unique_maps() {	2562	sub unique_maps() {
1853	[	2563	[
1854	map {	2564	map {
1855	utf8::decode $_;	2565	utf8::decode $_;
1856	/\.map$/	2566	s/\.map$//; # TODO future compatibility hack
		2567	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2568	? ()
1857	? normalise $_	2569	: normalise $_
1858	: ()
1859	} @{ aio_readdir $UNIQUEDIR or [] }	2570	} @{ aio_readdir $UNIQUEDIR or [] }
1860	]	2571	]
1861	}	2572	}
1862		2573
1863	package cf;	2574	=item cf::map::static_maps
		2575
		2576	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2577	file in the shared directory excluding F</styles> and F</editor>). May
		2578	block.
		2579
		2580	=cut
		2581
		2582	sub static_maps() {
		2583	my @dirs = "";
		2584	my @maps;
		2585
		2586	while (@dirs) {
		2587	my $dir = shift @dirs;
		2588
		2589	next if $dir eq "/styles" || $dir eq "/editor";
		2590
		2591	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2592	or return;
		2593
		2594	for (@$files) {
		2595	s/\.map$// or next;
		2596	utf8::decode $_;
		2597	push @maps, "$dir/$_";
		2598	}
		2599
		2600	push @dirs, map "$dir/$_", @$dirs;
		2601	}
		2602
		2603	\@maps
		2604	}
1864		2605
1865	=back	2606	=back
1866		2607
1867	=head3 cf::object	2608	=head3 cf::object
1868		2609
…		…
1872		2613
1873	=over 4	2614	=over 4
1874		2615
1875	=item $ob->inv_recursive	2616	=item $ob->inv_recursive
1876		2617
1877	Returns the inventory of the object _and_ their inventories, recursively.	2618	Returns the inventory of the object I<and> their inventories, recursively,
		2619	but I<not> the object itself.
1878		2620
1879	=cut	2621	=cut
1880		2622
1881	sub inv_recursive_;	2623	sub inv_recursive_;
1882	sub inv_recursive_ {	2624	sub inv_recursive_ {
…		…
1885		2627
1886	sub inv_recursive {	2628	sub inv_recursive {
1887	inv_recursive_ inv $_[0]	2629	inv_recursive_ inv $_[0]
1888	}	2630	}
1889		2631
		2632	=item $ref = $ob->ref
		2633
		2634	Creates and returns a persistent reference to an object that can be stored as a string.
		2635
		2636	=item $ob = cf::object::deref ($refstring)
		2637
		2638	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2639	even if the object actually exists. May block.
		2640
		2641	=cut
		2642
		2643	sub deref {
		2644	my ($ref) = @_;
		2645
		2646	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2647	my ($uuid, $name) = ($1, $2);
		2648	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2649	or return;
		2650	$pl->ob->uuid eq $uuid
		2651	or return;
		2652
		2653	$pl->ob
		2654	} else {
		2655	warn "$ref: cannot resolve object reference\n";
		2656	undef
		2657	}
		2658	}
		2659
1890	package cf;	2660	package cf;
1891		2661
1892	=back	2662	=back
1893		2663
1894	=head3 cf::object::player	2664	=head3 cf::object::player
…		…
1900	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2670	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1901	can be C<undef>. Does the right thing when the player is currently in a	2671	can be C<undef>. Does the right thing when the player is currently in a
1902	dialogue with the given NPC character.	2672	dialogue with the given NPC character.
1903		2673
1904	=cut	2674	=cut
		2675
		2676	our $SAY_CHANNEL = {
		2677	id => "say",
		2678	title => "Map",
		2679	reply => "say ",
		2680	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2681	};
		2682
		2683	our $CHAT_CHANNEL = {
		2684	id => "chat",
		2685	title => "Chat",
		2686	reply => "chat ",
		2687	tooltip => "Player chat and shouts, global to the server.",
		2688	};
1905		2689
1906	# rough implementation of a future "reply" method that works	2690	# rough implementation of a future "reply" method that works
1907	# with dialog boxes.	2691	# with dialog boxes.
1908	#TODO: the first argument must go, split into a $npc->reply_to ( method	2692	#TODO: the first argument must go, split into a $npc->reply_to ( method
1909	sub cf::object::player::reply($$$;$) {	2693	sub cf::object::player::reply($$$;$) {
…		…
1911		2695
1912	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2696	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1913		2697
1914	if ($self->{record_replies}) {	2698	if ($self->{record_replies}) {
1915	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2699	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2700
1916	} else {	2701	} else {
		2702	my $pl = $self->contr;
		2703
		2704	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2705	my $dialog = $pl->{npc_dialog};
		2706	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2707
		2708	} else {
1917	$msg = $npc->name . " says: $msg" if $npc;	2709	$msg = $npc->name . " says: $msg" if $npc;
1918	$self->message ($msg, $flags);	2710	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2711	}
1919	}	2712	}
		2713	}
		2714
		2715	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2716
		2717	=cut
		2718
		2719	sub cf::object::send_msg {
		2720	my $pl = shift->contr
		2721	or return;
		2722	$pl->send_msg (@_);
1920	}	2723	}
1921		2724
1922	=item $player_object->may ("access")	2725	=item $player_object->may ("access")
1923		2726
1924	Returns wether the given player is authorized to access resource "access"	2727	Returns wether the given player is authorized to access resource "access"
…		…
1937		2740
1938	=item $player_object->enter_link	2741	=item $player_object->enter_link
1939		2742
1940	Freezes the player and moves him/her to a special map (C<{link}>).	2743	Freezes the player and moves him/her to a special map (C<{link}>).
1941		2744
1942	The player should be reasonably safe there for short amounts of time. You	2745	The player should be reasonably safe there for short amounts of time (e.g.
1943	I<MUST> call C<leave_link> as soon as possible, though.	2746	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2747	though, as the player cannot control the character while it is on the link
		2748	map.
1944		2749
1945	Will never block.	2750	Will never block.
1946		2751
1947	=item $player_object->leave_link ($map, $x, $y)	2752	=item $player_object->leave_link ($map, $x, $y)
1948		2753
…		…
1968	sub cf::object::player::enter_link {	2773	sub cf::object::player::enter_link {
1969	my ($self) = @_;	2774	my ($self) = @_;
1970		2775
1971	$self->deactivate_recursive;	2776	$self->deactivate_recursive;
1972		2777
		2778	++$self->{_link_recursion};
		2779
1973	return if UNIVERSAL::isa $self->map, "ext::map_link";	2780	return if UNIVERSAL::isa $self->map, "ext::map_link";
1974		2781
1975	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2782	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1976	if $self->map && $self->map->{path} ne "{link}";	2783	if $self->map && $self->map->{path} ne "{link}";
1977		2784
1978	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2785	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1979	}	2786	}
1980		2787
1981	sub cf::object::player::leave_link {	2788	sub cf::object::player::leave_link {
1982	my ($self, $map, $x, $y) = @_;	2789	my ($self, $map, $x, $y) = @_;
1983		2790
…		…
2000	($x, $y) = (-1, -1)	2807	($x, $y) = (-1, -1)
2001	unless (defined $x) && (defined $y);	2808	unless (defined $x) && (defined $y);
2002		2809
2003	# use -1 or undef as default coordinates, not 0, 0	2810	# use -1 or undef as default coordinates, not 0, 0
2004	($x, $y) = ($map->enter_x, $map->enter_y)	2811	($x, $y) = ($map->enter_x, $map->enter_y)
2005	if $x <=0 && $y <= 0;	2812	if $x <= 0 && $y <= 0;
2006		2813
2007	$map->load;	2814	$map->load;
2008	$map->load_diag;
2009		2815
2010	return unless $self->contr->active;	2816	return unless $self->contr->active;
2011	$self->activate_recursive;
2012		2817
2013	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2818	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2014	$self->enter_map ($map, $x, $y);	2819	if ($self->enter_map ($map, $x, $y)) {
2015	}	2820	# entering was successful
		2821	delete $self->{_link_recursion};
		2822	# only activate afterwards, to support waiting in hooks
		2823	$self->activate_recursive;
		2824	}
2016		2825
		2826	}
		2827
2017	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2828	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2018		2829
2019	Moves the player to the given map-path and coordinates by first freezing	2830	Moves the player to the given map-path and coordinates by first freezing
2020	her, loading and preparing them map, calling the provided $check callback	2831	her, loading and preparing them map, calling the provided $check callback
2021	that has to return the map if sucecssful, and then unfreezes the player on	2832	that has to return the map if sucecssful, and then unfreezes the player on
2022	the new (success) or old (failed) map position.	2833	the new (success) or old (failed) map position. In either case, $done will
		2834	be called at the end of this process.
		2835
		2836	Note that $check will be called with a potentially non-loaded map, so if
		2837	it needs a loaded map it has to call C<< ->load >>.
2023		2838
2024	=cut	2839	=cut
2025		2840
2026	our $GOTOGEN;	2841	our $GOTOGEN;
2027		2842
2028	sub cf::object::player::goto {	2843	sub cf::object::player::goto {
2029	my ($self, $path, $x, $y, $check) = @_;	2844	my ($self, $path, $x, $y, $check, $done) = @_;
		2845
		2846	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2847	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2848	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2849	($path, $x, $y) = @$EMERGENCY_POSITION;
		2850	}
2030		2851
2031	# do generation counting so two concurrent goto's will be executed in-order	2852	# do generation counting so two concurrent goto's will be executed in-order
2032	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2853	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2033		2854
2034	$self->enter_link;	2855	$self->enter_link;
2035		2856
2036	(async {	2857	(async {
		2858	$Coro::current->{desc} = "player::goto $path $x $y";
		2859
		2860	# *tag paths override both path and x|y
		2861	if ($path =~ /^\*(.*)$/) {
		2862	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2863	my $ob = $obs[rand @obs];
		2864
		2865	# see if we actually can go there
		2866	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2867	$ob = $obs[rand @obs];
		2868	} else {
		2869	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2870	}
		2871	# else put us there anyways for now #d#
		2872
		2873	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2874	} else {
		2875	($path, $x, $y) = (undef, undef, undef);
		2876	}
		2877	}
		2878
2037	my $map = eval {	2879	my $map = eval {
2038	my $map = cf::map::find $path;	2880	my $map = defined $path ? cf::map::find $path, $self->map : undef;
2039		2881
2040	if ($map) {	2882	if ($map) {
2041	$map = $map->customise_for ($self);	2883	$map = $map->customise_for ($self);
2042	$map = $check->($map) if $check && $map;	2884	$map = $check->($map, $x, $y, $self) if $check && $map;
2043	} else {	2885	} else {
2044	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2886	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2045	}	2887	}
2046		2888
2047	$map	2889	$map
2048	};	2890	};
2049		2891
…		…
2054		2896
2055	if ($gen == $self->{_goto_generation}) {	2897	if ($gen == $self->{_goto_generation}) {
2056	delete $self->{_goto_generation};	2898	delete $self->{_goto_generation};
2057	$self->leave_link ($map, $x, $y);	2899	$self->leave_link ($map, $x, $y);
2058	}	2900	}
		2901
		2902	$done->($self) if $done;
2059	})->prio (1);	2903	})->prio (1);
2060	}	2904	}
2061		2905
2062	=item $player_object->enter_exit ($exit_object)	2906	=item $player_object->enter_exit ($exit_object)
2063		2907
…		…
2083	}	2927	}
2084		2928
2085	sub prepare_random_map {	2929	sub prepare_random_map {
2086	my ($exit) = @_;	2930	my ($exit) = @_;
2087		2931
2088	my $guard = cf::lock_acquire "exit_prepare:$exit";
2089
2090	# all this does is basically replace the /! path by	2932	# all this does is basically replace the /! path by
2091	# a new random map path (?random/...) with a seed	2933	# a new random map path (?random/...) with a seed
2092	# that depends on the exit object	2934	# that depends on the exit object
2093		2935
2094	my $rmp = parse_random_map_params $exit->msg;	2936	my $rmp = parse_random_map_params $exit->msg;
…		…
2096	if ($exit->map) {	2938	if ($exit->map) {
2097	$rmp->{region} = $exit->region->name;	2939	$rmp->{region} = $exit->region->name;
2098	$rmp->{origin_map} = $exit->map->path;	2940	$rmp->{origin_map} = $exit->map->path;
2099	$rmp->{origin_x} = $exit->x;	2941	$rmp->{origin_x} = $exit->x;
2100	$rmp->{origin_y} = $exit->y;	2942	$rmp->{origin_y} = $exit->y;
		2943
		2944	$exit->map->touch;
2101	}	2945	}
2102		2946
2103	$rmp->{random_seed} ||= $exit->random_seed;	2947	$rmp->{random_seed} ||= $exit->random_seed;
2104		2948
2105	my $data = cf::to_json $rmp;	2949	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2106	my $md5 = Digest::MD5::md5_hex $data;	2950	my $md5 = Digest::MD5::md5_hex $data;
2107	my $meta = "$RANDOMDIR/$md5.meta";	2951	my $meta = "$RANDOMDIR/$md5.meta";
2108		2952
2109	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2953	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2110	aio_write $fh, 0, (length $data), $data, 0;	2954	aio_write $fh, 0, (length $data), $data, 0;
2111	undef $fh;	2955	undef $fh;
2112	aio_rename "$meta~", $meta;	2956	aio_rename "$meta~", $meta;
2113		2957
		2958	my $slaying = "?random/$md5";
		2959
		2960	if ($exit->valid) {
2114	$exit->slaying ("?random/$md5");	2961	$exit->slaying ("?random/$md5");
2115	$exit->msg (undef);	2962	$exit->msg (undef);
		2963	}
2116	}	2964	}
2117	}	2965	}
2118		2966
2119	sub cf::object::player::enter_exit {	2967	sub cf::object::player::enter_exit {
2120	my ($self, $exit) = @_;	2968	my ($self, $exit) = @_;
2121		2969
2122	return unless $self->type == cf::PLAYER;	2970	return unless $self->type == cf::PLAYER;
2123		2971
2124	if ($exit->slaying eq "/!") {
2125	#TODO: this should de-fi-ni-te-ly not be a sync-job
2126	# the problem is that $exit might not survive long enough
2127	# so it needs to be done right now, right here
2128	cf::sync_job { prepare_random_map $exit };
2129	}
2130
2131	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2132	my $hp = $exit->stats->hp;
2133	my $sp = $exit->stats->sp;
2134
2135	$self->enter_link;	2972	$self->enter_link;
2136		2973
2137	(async {	2974	(async {
2138	$self->deactivate_recursive; # just to be sure	2975	$Coro::current->{desc} = "enter_exit";
		2976
2139	unless (eval {	2977	unless (eval {
		2978	$self->deactivate_recursive; # just to be sure
		2979
		2980	my $map = cf::map::normalise $exit->slaying, $exit->map;
		2981	my $x = $exit->stats->hp;
		2982	my $y = $exit->stats->sp;
		2983
		2984	# special map handling
		2985	my $slaying = $exit->slaying;
		2986
		2987	# special map handling
		2988	if ($slaying eq "/!") {
		2989	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2990
		2991	prepare_random_map $exit
		2992	if $exit->slaying eq "/!"; # need to re-check after getting the lock
		2993
		2994	$map = $exit->slaying;
		2995
		2996	} elsif ($slaying eq '!up') {
		2997	$map = $exit->map->tile_path (cf::TILE_UP);
		2998	$x = $exit->x;
		2999	$y = $exit->y;
		3000
		3001	} elsif ($slaying eq '!down') {
		3002	$map = $exit->map->tile_path (cf::TILE_DOWN);
		3003	$x = $exit->x;
		3004	$y = $exit->y;
		3005	}
		3006
2140	$self->goto ($slaying, $hp, $sp);	3007	$self->goto ($map, $x, $y);
2141		3008
		3009	# if exit is damned, update players death & WoR home-position
		3010	$self->contr->savebed ($map, $x, $y)
		3011	if $exit->flag (cf::FLAG_DAMNED);
		3012
2142	1;	3013	1
2143	}) {	3014	}) {
2144	$self->message ("Something went wrong deep within the crossfire server. "	3015	$self->message ("Something went wrong deep within the deliantra server. "
2145	. "I'll try to bring you back to the map you were before. "	3016	. "I'll try to bring you back to the map you were before. "
2146	. "Please report this to the dungeon master!",	3017	. "Please report this to the dungeon master!",
2147	cf::NDI_UNIQUE | cf::NDI_RED);	3018	cf::NDI_UNIQUE | cf::NDI_RED);
2148		3019
2149	warn "ERROR in enter_exit: $@";	3020	error "ERROR in enter_exit: $@";
2150	$self->leave_link;	3021	$self->leave_link;
2151	}	3022	}
2152	})->prio (1);	3023	})->prio (1);
2153	}	3024	}
2154		3025
…		…
2168		3039
2169	utf8::encode $text;	3040	utf8::encode $text;
2170	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	3041	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2171	}	3042	}
2172		3043
		3044	=item $client->send_big_packet ($pkt)
		3045
		3046	Like C<send_packet>, but tries to compress large packets, and fragments
		3047	them as required.
		3048
		3049	=cut
		3050
		3051	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		3052
		3053	sub cf::client::send_big_packet {
		3054	my ($self, $pkt) = @_;
		3055
		3056	# try lzf for large packets
		3057	$pkt = "lzf " . Compress::LZF::compress $pkt
		3058	if 1024 <= length $pkt and $self->{can_lzf};
		3059
		3060	# split very large packets
		3061	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		3062	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		3063	$pkt = "frag";
		3064	}
		3065
		3066	$self->send_packet ($pkt);
		3067	}
		3068
		3069	=item $client->send_msg ($channel, $msg, $color, [extra...])
		3070
		3071	Send a drawinfo or msg packet to the client, formatting the msg for the
		3072	client if neccessary. C<$type> should be a string identifying the type of
		3073	the message, with C<log> being the default. If C<$color> is negative, suppress
		3074	the message unless the client supports the msg packet.
		3075
		3076	=cut
		3077
		3078	# non-persistent channels (usually the info channel)
		3079	our %CHANNEL = (
		3080	"c/motd" => {
		3081	id => "infobox",
		3082	title => "MOTD",
		3083	reply => undef,
		3084	tooltip => "The message of the day",
		3085	},
		3086	"c/identify" => {
		3087	id => "infobox",
		3088	title => "Identify",
		3089	reply => undef,
		3090	tooltip => "Items recently identified",
		3091	},
		3092	"c/examine" => {
		3093	id => "infobox",
		3094	title => "Examine",
		3095	reply => undef,
		3096	tooltip => "Signs and other items you examined",
		3097	},
		3098	"c/shopinfo" => {
		3099	id => "infobox",
		3100	title => "Shop Info",
		3101	reply => undef,
		3102	tooltip => "What your bargaining skill tells you about the shop",
		3103	},
		3104	"c/book" => {
		3105	id => "infobox",
		3106	title => "Book",
		3107	reply => undef,
		3108	tooltip => "The contents of a note or book",
		3109	},
		3110	"c/lookat" => {
		3111	id => "infobox",
		3112	title => "Look",
		3113	reply => undef,
		3114	tooltip => "What you saw there",
		3115	},
		3116	"c/who" => {
		3117	id => "infobox",
		3118	title => "Players",
		3119	reply => undef,
		3120	tooltip => "Shows players who are currently online",
		3121	},
		3122	"c/body" => {
		3123	id => "infobox",
		3124	title => "Body Parts",
		3125	reply => undef,
		3126	tooltip => "Shows which body parts you posess and are available",
		3127	},
		3128	"c/statistics" => {
		3129	id => "infobox",
		3130	title => "Statistics",
		3131	reply => undef,
		3132	tooltip => "Shows your primary statistics",
		3133	},
		3134	"c/skills" => {
		3135	id => "infobox",
		3136	title => "Skills",
		3137	reply => undef,
		3138	tooltip => "Shows your experience per skill and item power",
		3139	},
		3140	"c/shopitems" => {
		3141	id => "infobox",
		3142	title => "Shop Items",
		3143	reply => undef,
		3144	tooltip => "Shows the items currently for sale in this shop",
		3145	},
		3146	"c/resistances" => {
		3147	id => "infobox",
		3148	title => "Resistances",
		3149	reply => undef,
		3150	tooltip => "Shows your resistances",
		3151	},
		3152	"c/pets" => {
		3153	id => "infobox",
		3154	title => "Pets",
		3155	reply => undef,
		3156	tooltip => "Shows information abotu your pets/a specific pet",
		3157	},
		3158	"c/perceiveself" => {
		3159	id => "infobox",
		3160	title => "Perceive Self",
		3161	reply => undef,
		3162	tooltip => "You gained detailed knowledge about yourself",
		3163	},
		3164	"c/uptime" => {
		3165	id => "infobox",
		3166	title => "Uptime",
		3167	reply => undef,
		3168	tooltip => "How long the server has been running since last restart",
		3169	},
		3170	"c/mapinfo" => {
		3171	id => "infobox",
		3172	title => "Map Info",
		3173	reply => undef,
		3174	tooltip => "Information related to the maps",
		3175	},
		3176	"c/party" => {
		3177	id => "party",
		3178	title => "Party",
		3179	reply => "gsay ",
		3180	tooltip => "Messages and chat related to your party",
		3181	},
		3182	"c/death" => {
		3183	id => "death",
		3184	title => "Death",
		3185	reply => undef,
		3186	tooltip => "Reason for and more info about your most recent death",
		3187	},
		3188	"c/say" => $SAY_CHANNEL,
		3189	"c/chat" => $CHAT_CHANNEL,
		3190	);
		3191
		3192	sub cf::client::send_msg {
		3193	my ($self, $channel, $msg, $color, @extra) = @_;
		3194
		3195	$msg = $self->pl->expand_cfpod ($msg)
		3196	unless $color & cf::NDI_VERBATIM;
		3197
		3198	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3199
		3200	# check predefined channels, for the benefit of C
		3201	if ($CHANNEL{$channel}) {
		3202	$channel = $CHANNEL{$channel};
		3203
		3204	$self->ext_msg (channel_info => $channel);
		3205	$channel = $channel->{id};
		3206
		3207	} elsif (ref $channel) {
		3208	# send meta info to client, if not yet sent
		3209	unless (exists $self->{channel}{$channel->{id}}) {
		3210	$self->{channel}{$channel->{id}} = $channel;
		3211	$self->ext_msg (channel_info => $channel);
		3212	}
		3213
		3214	$channel = $channel->{id};
		3215	}
		3216
		3217	return unless @extra || length $msg;
		3218
		3219	# default colour, mask it out
		3220	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3221	if $color & cf::NDI_DEF;
		3222
		3223	my $pkt = "msg "
		3224	. $self->{json_coder}->encode (
		3225	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3226	);
		3227
		3228	$self->send_big_packet ($pkt);
		3229	}
		3230
2173	=item $client->ext_event ($type, %msg)	3231	=item $client->ext_msg ($type, @msg)
2174		3232
2175	Sends an exti event to the client.	3233	Sends an ext event to the client.
2176		3234
2177	=cut	3235	=cut
2178		3236
2179	sub cf::client::ext_event($$%) {	3237	sub cf::client::ext_msg($$@) {
2180	my ($self, $type, %msg) = @_;	3238	my ($self, $type, @msg) = @_;
2181		3239
		3240	if ($self->extcmd == 2) {
		3241	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3242	} elsif ($self->extcmd == 1) { # TODO: remove
2182	$msg{msgtype} = "event_$type";	3243	push @msg, msgtype => "event_$type";
2183	$self->send_packet ("ext " . cf::to_json \%msg);	3244	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3245	}
		3246	}
		3247
		3248	=item $client->ext_reply ($msgid, @msg)
		3249
		3250	Sends an ext reply to the client.
		3251
		3252	=cut
		3253
		3254	sub cf::client::ext_reply($$@) {
		3255	my ($self, $id, @msg) = @_;
		3256
		3257	return unless $self->extcmd == 2;
		3258
		3259	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2184	}	3260	}
2185		3261
2186	=item $success = $client->query ($flags, "text", \&cb)	3262	=item $success = $client->query ($flags, "text", \&cb)
2187		3263
2188	Queues a query to the client, calling the given callback with	3264	Queues a query to the client, calling the given callback with
2189	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3265	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2190	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3266	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2191		3267
2192	Queries can fail, so check the return code. Or don't, as queries will become	3268	Queries can fail, so check the return code. Or don't, as queries will
2193	reliable at some point in the future.	3269	become reliable at some point in the future.
2194		3270
2195	=cut	3271	=cut
2196		3272
2197	sub cf::client::query {	3273	sub cf::client::query {
2198	my ($self, $flags, $text, $cb) = @_;	3274	my ($self, $flags, $text, $cb) = @_;
…		…
2206	utf8::encode $text;	3282	utf8::encode $text;
2207	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3283	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2208		3284
2209	$self->send_packet ($self->{query_queue}[0][0])	3285	$self->send_packet ($self->{query_queue}[0][0])
2210	if @{ $self->{query_queue} } == 1;	3286	if @{ $self->{query_queue} } == 1;
		3287
		3288	1
2211	}	3289	}
2212		3290
2213	cf::client->attach (	3291	cf::client->attach (
		3292	on_connect => sub {
		3293	my ($ns) = @_;
		3294
		3295	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3296	},
2214	on_reply => sub {	3297	on_reply => sub {
2215	my ($ns, $msg) = @_;	3298	my ($ns, $msg) = @_;
2216		3299
2217	# this weird shuffling is so that direct followup queries	3300	# this weird shuffling is so that direct followup queries
2218	# get handled first	3301	# get handled first
…		…
2230	} else {	3313	} else {
2231	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3314	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2232	}	3315	}
2233	}	3316	}
2234	},	3317	},
		3318	on_exticmd => sub {
		3319	my ($ns, $buf) = @_;
		3320
		3321	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3322
		3323	if (ref $msg) {
		3324	my ($type, $reply, @payload) = @$msg; # version 1 used %type, $id, %$hash
		3325
		3326	my @reply;
		3327
		3328	if (my $cb = $EXTICMD{$type}) {
		3329	@reply = $cb->($ns, @payload);
		3330	}
		3331
		3332	$ns->ext_reply ($reply, @reply)
		3333	if $reply;
		3334
		3335	} else {
		3336	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3337	}
		3338
		3339	cf::override;
		3340	},
2235	);	3341	);
2236		3342
2237	=item $client->async (\&cb)	3343	=item $client->async (\&cb)
2238		3344
2239	Create a new coroutine, running the specified callback. The coroutine will	3345	Create a new coroutine, running the specified callback. The coroutine will
…		…
2255		3361
2256	$coro	3362	$coro
2257	}	3363	}
2258		3364
2259	cf::client->attach (	3365	cf::client->attach (
2260	on_destroy => sub {	3366	on_client_destroy => sub {
2261	my ($ns) = @_;	3367	my ($ns) = @_;
2262		3368
2263	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3369	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2264	},	3370	},
2265	);	3371	);
…		…
2280	our $safe = new Safe "safe";	3386	our $safe = new Safe "safe";
2281	our $safe_hole = new Safe::Hole;	3387	our $safe_hole = new Safe::Hole;
2282		3388
2283	$SIG{FPE} = 'IGNORE';	3389	$SIG{FPE} = 'IGNORE';
2284		3390
2285	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3391	$safe->permit_only (Opcode::opset qw(
		3392	:base_core :base_mem :base_orig :base_math :base_loop
		3393	grepstart grepwhile mapstart mapwhile
		3394	sort time
		3395	));
2286		3396
2287	# here we export the classes and methods available to script code	3397	# here we export the classes and methods available to script code
2288		3398
2289	=pod	3399	=pod
2290		3400
2291	The following functions and methods are available within a safe environment:	3401	The following functions and methods are available within a safe environment:
2292		3402
2293	cf::object contr pay_amount pay_player map	3403	cf::object
		3404	contr pay_amount pay_player map x y force_find force_add destroy
		3405	insert remove name archname title slaying race decrease split
		3406	value
		3407
2294	cf::object::player player	3408	cf::object::player
2295	cf::player peaceful	3409	player
2296	cf::map trigger	3410
		3411	cf::player
		3412	peaceful
		3413
		3414	cf::map
		3415	trigger
2297		3416
2298	=cut	3417	=cut
2299		3418
2300	for (	3419	for (
2301	["cf::object" => qw(contr pay_amount pay_player map)],	3420	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3421	insert remove inv nrof name archname title slaying race
		3422	decrease split destroy change_exp value msg lore send_msg)],
2302	["cf::object::player" => qw(player)],	3423	["cf::object::player" => qw(player)],
2303	["cf::player" => qw(peaceful)],	3424	["cf::player" => qw(peaceful send_msg)],
2304	["cf::map" => qw(trigger)],	3425	["cf::map" => qw(trigger)],
2305	) {	3426	) {
2306	no strict 'refs';
2307	my ($pkg, @funs) = @$_;	3427	my ($pkg, @funs) = @$_;
2308	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3428	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2309	for @funs;	3429	for @funs;
2310	}	3430	}
2311		3431
…		…
2326		3446
2327	my $qcode = $code;	3447	my $qcode = $code;
2328	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3448	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2329	$qcode =~ s/\n/\\n/g;	3449	$qcode =~ s/\n/\\n/g;
2330		3450
		3451	%vars = (_dummy => 0) unless %vars;
		3452
		3453	my @res;
2331	local $_;	3454	local $_;
2332	local @safe::cf::_safe_eval_args = values %vars;
2333		3455
2334	my $eval =	3456	my $eval =
2335	"do {\n"	3457	"do {\n"
2336	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3458	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2337	. "#line 0 \"{$qcode}\"\n"	3459	. "#line 0 \"{$qcode}\"\n"
2338	. $code	3460	. $code
2339	. "\n}"	3461	. "\n}"
2340	;	3462	;
2341		3463
		3464	if ($CFG{safe_eval}) {
2342	sub_generation_inc;	3465	sub_generation_inc;
		3466	local @safe::cf::_safe_eval_args = values %vars;
2343	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3467	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2344	sub_generation_inc;	3468	sub_generation_inc;
		3469	} else {
		3470	local @cf::_safe_eval_args = values %vars;
		3471	@res = wantarray ? eval eval : scalar eval $eval;
		3472	}
2345		3473
2346	if ($@) {	3474	if ($@) {
2347	warn "$@";	3475	warn "$@",
2348	warn "while executing safe code '$code'\n";	3476	"while executing safe code '$code'\n",
2349	warn "with arguments " . (join " ", %vars) . "\n";	3477	"with arguments " . (join " ", %vars) . "\n";
2350	}	3478	}
2351		3479
2352	wantarray ? @res : $res[0]	3480	wantarray ? @res : $res[0]
2353	}	3481	}
2354		3482
…		…
2368	=cut	3496	=cut
2369		3497
2370	sub register_script_function {	3498	sub register_script_function {
2371	my ($fun, $cb) = @_;	3499	my ($fun, $cb) = @_;
2372		3500
2373	no strict 'refs';	3501	$fun = "safe::$fun" if $CFG{safe_eval};
2374	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3502	*$fun = $safe_hole->wrap ($cb);
2375	}	3503	}
2376		3504
2377	=back	3505	=back
2378		3506
2379	=cut	3507	=cut
2380
2381	#############################################################################
2382
2383	=head2 EXTENSION DATABASE SUPPORT
2384
2385	Crossfire maintains a very simple database for extension use. It can
2386	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2387	convert to/from binary).
2388
2389	The parameter C<$family> should best start with the name of the extension
2390	using it, it should be unique.
2391
2392	=over 4
2393
2394	=item $value = cf::db_get $family => $key
2395
2396	Returns a single value from the database.
2397
2398	=item cf::db_put $family => $key => $value
2399
2400	Stores the given C<$value> in the family.
2401
2402	=cut
2403
2404	our $DB;
2405
2406	sub db_init {
2407	unless ($DB) {
2408	$DB = BDB::db_create $DB_ENV;
2409
2410	cf::sync_job {
2411	eval {
2412	$DB->set_flags (BDB::CHKSUM);
2413
2414	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2415	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2416	cf::cleanup "db_open(db): $!" if $!;
2417	};
2418	cf::cleanup "db_open(db): $@" if $@;
2419	};
2420	}
2421	}
2422
2423	sub db_get($$) {
2424	my $key = "$_[0]/$_[1]";
2425
2426	cf::sync_job {
2427	BDB::db_get $DB, undef, $key, my $data;
2428
2429	$! ? ()
2430	: $data
2431	}
2432	}
2433
2434	sub db_put($$$) {
2435	BDB::dbreq_pri 4;
2436	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2437	}
2438
2439	=item cf::cache $id => [$paths...], $processversion => $process
2440
2441	Generic caching function that returns the value of the resource $id,
2442	caching and regenerating as required.
2443
2444	This function can block.
2445
2446	=cut
2447
2448	sub cache {
2449	my ($id, $src, $processversion, $process) = @_;
2450
2451	my $meta =
2452	join "\x00",
2453	$processversion,
2454	map {
2455	aio_stat $_
2456	and Carp::croak "$_: $!";
2457
2458	($_, (stat _)[7,9])
2459	} @$src;
2460
2461	my $dbmeta = db_get cache => "$id/meta";
2462	if ($dbmeta ne $meta) {
2463	# changed, we may need to process
2464
2465	my @data;
2466	my $md5;
2467
2468	for (0 .. $#$src) {
2469	0 <= aio_load $src->[$_], $data[$_]
2470	or Carp::croak "$src->[$_]: $!";
2471	}
2472
2473	# if processing is expensive, check
2474	# checksum first
2475	if (1) {
2476	$md5 =
2477	join "\x00",
2478	$processversion,
2479	map {
2480	Coro::cede;
2481	($src->[$_], Digest::MD5::md5_hex $data[$_])
2482	} 0.. $#$src;
2483
2484
2485	my $dbmd5 = db_get cache => "$id/md5";
2486	if ($dbmd5 eq $md5) {
2487	db_put cache => "$id/meta", $meta;
2488
2489	return db_get cache => "$id/data";
2490	}
2491	}
2492
2493	my $t1 = Time::HiRes::time;
2494	my $data = $process->(\@data);
2495	my $t2 = Time::HiRes::time;
2496
2497	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2498
2499	db_put cache => "$id/data", $data;
2500	db_put cache => "$id/md5" , $md5;
2501	db_put cache => "$id/meta", $meta;
2502
2503	return $data;
2504	}
2505
2506	db_get cache => "$id/data"
2507	}
2508
2509	=item fork_call { }, $args
2510
2511	Executes the given code block with the given arguments in a seperate
2512	process, returning the results. Everything must be serialisable with
2513	Coro::Storable. May, of course, block. Note that the executed sub may
2514	never block itself or use any form of Event handling.
2515
2516	=cut
2517
2518	sub fork_call(&@) {
2519	my ($cb, @args) = @_;
2520
2521	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2522	# or die "socketpair: $!";
2523	pipe my $fh1, my $fh2
2524	or die "pipe: $!";
2525
2526	if (my $pid = fork) {
2527	close $fh2;
2528
2529	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2530	$res = Coro::Storable::thaw $res;
2531
2532	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2533
2534	die $$res unless "ARRAY" eq ref $res;
2535
2536	return wantarray ? @$res : $res->[-1];
2537	} else {
2538	reset_signals;
2539	local $SIG{__WARN__};
2540	local $SIG{__DIE__};
2541	eval {
2542	close $fh1;
2543
2544	my @res = eval { $cb->(@args) };
2545	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2546	};
2547
2548	warn $@ if $@;
2549	_exit 0;
2550	}
2551	}
2552		3508
2553	#############################################################################	3509	#############################################################################
2554	# the server's init and main functions	3510	# the server's init and main functions
2555		3511
		3512	our %FACEHASH; # hash => idx, #d# HACK for http server
		3513
2556	sub load_facedata($) {	3514	sub load_facedata($) {
2557	my ($path) = @_;	3515	my ($path) = @_;
2558		3516
		3517	# HACK to clear player env face cache, we need some signal framework
		3518	# for this (global event?)
		3519	%ext::player_env::MUSIC_FACE_CACHE = ();
		3520
		3521	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3522
2559	warn "loading facedata from $path\n";	3523	trace "loading facedata from $path\n";
2560		3524
2561	my $facedata;	3525	my $facedata = decode_storable load_file $path;
2562	0 < aio_load $path, $facedata
2563	or die "$path: $!";
2564
2565	$facedata = Coro::Storable::thaw $facedata;
2566		3526
2567	$facedata->{version} == 2	3527	$facedata->{version} == 2
2568	or cf::cleanup "$path: version mismatch, cannot proceed.";	3528	or cf::cleanup "$path: version mismatch, cannot proceed.";
2569		3529
		3530	# patch in the exptable
		3531	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3532	$facedata->{resource}{"res/exp_table"} = {
		3533	type => FT_RSRC,
		3534	data => $exp_table,
		3535	hash => (Digest::MD5::md5 $exp_table),
		3536	};
		3537	cf::cede_to_tick;
		3538
2570	{	3539	{
2571	my $faces = $facedata->{faceinfo};	3540	my $faces = $facedata->{faceinfo};
2572		3541
2573	while (my ($face, $info) = each %$faces) {	3542	for my $face (sort keys %$faces) {
		3543	my $info = $faces->{$face};
2574	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3544	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3545
2575	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3546	cf::face::set_visibility $idx, $info->{visibility};
		3547	cf::face::set_magicmap $idx, $info->{magicmap};
2576	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3548	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2577	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3549	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2578	Coro::cede;	3550	cf::face::set_data $idx, 2, $info->{glyph} , $info->{glyph} ;
		3551	$FACEHASH{$info->{hash64}} = $idx;#d#
		3552
		3553	cf::cede_to_tick;
2579	}	3554	}
2580		3555
2581	while (my ($face, $info) = each %$faces) {	3556	while (my ($face, $info) = each %$faces) {
2582	next unless $info->{smooth};	3557	next unless $info->{smooth};
		3558
2583	my $idx = cf::face::find $face	3559	my $idx = cf::face::find $face
2584	or next;	3560	or next;
		3561
2585	if (my $smooth = cf::face::find $info->{smooth}) {	3562	if (my $smooth = cf::face::find $info->{smooth}) {
		3563	cf::face::set_smooth $idx, $smooth;
2586	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3564	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2587	} else {	3565	} else {
2588	warn "smooth face '$info->{smooth}' not found for face '$face'";	3566	error "smooth face '$info->{smooth}' not found for face '$face'";
2589	}	3567	}
2590	Coro::cede;	3568
		3569	cf::cede_to_tick;
2591	}	3570	}
2592	}	3571	}
2593		3572
2594	{	3573	{
2595	my $anims = $facedata->{animinfo};	3574	my $anims = $facedata->{animinfo};
2596		3575
2597	while (my ($anim, $info) = each %$anims) {	3576	while (my ($anim, $info) = each %$anims) {
2598	cf::anim::set $anim, $info->{frames}, $info->{facings};	3577	cf::anim::set $anim, $info->{frames}, $info->{facings};
2599	Coro::cede;	3578	cf::cede_to_tick;
2600	}	3579	}
2601		3580
2602	cf::anim::invalidate_all; # d'oh	3581	cf::anim::invalidate_all; # d'oh
2603	}	3582	}
2604		3583
		3584	{
		3585	my $res = $facedata->{resource};
		3586
		3587	while (my ($name, $info) = each %$res) {
		3588	if (defined (my $type = $info->{type})) {
		3589	# TODO: different hash - must free and use new index, or cache ixface data queue
		3590	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3591
		3592	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3593	cf::face::set_type $idx, $type;
		3594	cf::face::set_meta $idx, $type & 1 ? undef : $info->{meta}; # preserve meta unless prepended already
		3595	$FACEHASH{$info->{hash}} = $idx;#d#
		3596	} else {
		3597	# $RESOURCE{$name} = $info; # unused
		3598	}
		3599
		3600	cf::cede_to_tick;
		3601	}
		3602	}
		3603
		3604	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3605
2605	1	3606	1
2606	}	3607	}
2607		3608
		3609	register_exticmd fx_want => sub {
		3610	my ($ns, $want) = @_;
		3611
		3612	while (my ($k, $v) = each %$want) {
		3613	$ns->fx_want ($k, $v);
		3614	}
		3615	};
		3616
		3617	sub load_resource_file($) {
		3618	my $guard = lock_acquire "load_resource_file";
		3619
		3620	my $status = load_resource_file_ $_[0];
		3621	get_slot 0.1, 100;
		3622	cf::arch::commit_load;
		3623
		3624	$status
		3625	}
		3626
2608	sub reload_regions {	3627	sub reload_regions {
		3628	# HACK to clear player env face cache, we need some signal framework
		3629	# for this (global event?)
		3630	%ext::player_env::MUSIC_FACE_CACHE = ();
		3631
2609	load_resource_file "$MAPDIR/regions"	3632	load_resource_file "$MAPDIR/regions"
2610	or die "unable to load regions file\n";	3633	or die "unable to load regions file\n";
		3634
		3635	for (cf::region::list) {
		3636	$_->{match} = qr/$_->{match}/
		3637	if exists $_->{match};
		3638	}
2611	}	3639	}
2612		3640
2613	sub reload_facedata {	3641	sub reload_facedata {
2614	load_facedata "$DATADIR/facedata"	3642	load_facedata "$DATADIR/facedata"
2615	or die "unable to load facedata\n";	3643	or die "unable to load facedata\n";
…		…
2623	sub reload_treasures {	3651	sub reload_treasures {
2624	load_resource_file "$DATADIR/treasures"	3652	load_resource_file "$DATADIR/treasures"
2625	or die "unable to load treasurelists\n";	3653	or die "unable to load treasurelists\n";
2626	}	3654	}
2627		3655
		3656	sub reload_sound {
		3657	trace "loading sound config from $DATADIR/sound\n";
		3658
		3659	my $soundconf = JSON::XS->new->utf8->relaxed->decode (load_file "$DATADIR/sound");
		3660
		3661	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3662	my $sound = $soundconf->{compat}[$_]
		3663	or next;
		3664
		3665	my $face = cf::face::find "sound/$sound->[1]";
		3666	cf::sound::set $sound->[0] => $face;
		3667	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3668	}
		3669
		3670	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3671	my $face = cf::face::find "sound/$v";
		3672	cf::sound::set $k => $face;
		3673	}
		3674	}
		3675
2628	sub reload_resources {	3676	sub reload_resources {
2629	warn "reloading resource files...\n";	3677	trace "reloading resource files...\n";
2630		3678
		3679	reload_exp_table;
		3680	reload_materials;
		3681	reload_facedata;
		3682	reload_sound;
		3683	reload_archetypes;
2631	reload_regions;	3684	reload_regions;
2632	reload_facedata;
2633	#reload_archetypes;#d#
2634	reload_archetypes;
2635	reload_treasures;	3685	reload_treasures;
2636		3686
2637	warn "finished reloading resource files\n";	3687	trace "finished reloading resource files\n";
2638	}	3688	}
2639		3689
2640	sub init {	3690	sub reload_config {
2641	reload_resources;	3691	trace "reloading config file...\n";
2642	}
2643		3692
2644	sub cfg_load {	3693	my $config = load_file "$CONFDIR/config";
2645	open my $fh, "<:utf8", "$CONFDIR/config"	3694	utf8::decode $config;
2646	or return;	3695	*CFG = decode_yaml $config;
2647		3696
2648	local $/;
2649	*CFG = YAML::Syck::Load <$fh>;
2650
2651	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3697	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2652		3698
2653	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3699	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2654	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3700	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2655		3701
2656	if (exists $CFG{mlockall}) {	3702	if (exists $CFG{mlockall}) {
…		…
2660	};	3706	};
2661	warn $@ if $@;	3707	warn $@ if $@;
2662	}	3708	}
2663	}	3709	}
2664		3710
		3711	sub pidfile() {
		3712	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3713	or die "$PIDFILE: $!";
		3714	flock $fh, &Fcntl::LOCK_EX
		3715	or die "$PIDFILE: flock: $!";
		3716	$fh
		3717	}
		3718
		3719	# make sure only one server instance is running at any one time
		3720	sub atomic {
		3721	my $fh = pidfile;
		3722
		3723	my $pid = <$fh>;
		3724	kill 9, $pid if $pid > 0;
		3725
		3726	seek $fh, 0, 0;
		3727	print $fh $$;
		3728	}
		3729
		3730	sub main_loop {
		3731	trace "EV::loop starting\n";
		3732	if (1) {
		3733	EV::loop;
		3734	}
		3735	trace "EV::loop returned\n";
		3736	goto &main_loop unless $REALLY_UNLOOP;
		3737	}
		3738
2665	sub main {	3739	sub main {
		3740	cf::init_globals; # initialise logging
		3741
		3742	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3743	LOG llevInfo, "Copyright (C) 2005-2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3744	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3745	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3746
		3747	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3748
2666	# we must not ever block the main coroutine	3749	# we must not ever block the main coroutine
2667	local $Coro::idle = sub {	3750	$Coro::idle = sub {
2668	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3751	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2669	(async {	3752	(async {
2670	Event::one_event;	3753	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3754	EV::loop EV::LOOP_ONESHOT;
2671	})->prio (Coro::PRIO_MAX);	3755	})->prio (Coro::PRIO_MAX);
2672	};	3756	};
2673		3757
2674	cfg_load;	3758	evthread_start IO::AIO::poll_fileno;
		3759
		3760	cf::sync_job {
		3761	cf::incloader::init ();
		3762
		3763	cf::init_anim;
		3764	cf::init_attackmess;
		3765	cf::init_dynamic;
		3766
		3767	cf::load_settings;
		3768
		3769	reload_resources;
		3770	reload_config;
2675	db_init;	3771	db_init;
		3772
		3773	cf::init_uuid;
		3774	cf::init_signals;
		3775	cf::init_skills;
		3776
		3777	cf::init_beforeplay;
		3778
		3779	atomic;
		3780
2676	load_extensions;	3781	load_extensions;
2677		3782
2678	$TICK_WATCHER->start;	3783	utime time, time, $RUNTIMEFILE;
2679	Event::loop;	3784
		3785	# no (long-running) fork's whatsoever before this point(!)
		3786	use POSIX ();
		3787	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3788
		3789	cf::_post_init 0;
		3790	};
		3791
		3792	cf::object::thawer::errors_are_fatal 0;
		3793	info "parse errors in files are no longer fatal from this point on.\n";
		3794
		3795	AE::postpone {
		3796	undef &main; # free gobs of memory :)
		3797	};
		3798
		3799	goto &main_loop;
2680	}	3800	}
2681		3801
2682	#############################################################################	3802	#############################################################################
2683	# initialisation and cleanup	3803	# initialisation and cleanup
2684		3804
2685	# install some emergency cleanup handlers	3805	# install some emergency cleanup handlers
2686	BEGIN {	3806	BEGIN {
		3807	our %SIGWATCHER = ();
2687	for my $signal (qw(INT HUP TERM)) {	3808	for my $signal (qw(INT HUP TERM)) {
2688	Event->signal (	3809	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2689	reentrant => 0,
2690	data => WF_AUTOCANCEL,
2691	signal => $signal,
2692	prio => 0,
2693	cb => sub {
2694	cf::cleanup "SIG$signal";	3810	cf::cleanup "SIG$signal";
2695	},
2696	);	3811	};
		3812	}
		3813	}
		3814
		3815	sub write_runtime_sync {
		3816	my $t0 = AE::time;
		3817
		3818	# first touch the runtime file to show we are still running:
		3819	# the fsync below can take a very very long time.
		3820
		3821	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3822
		3823	my $guard = cf::lock_acquire "write_runtime";
		3824
		3825	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3826	or return;
		3827
		3828	my $value = $cf::RUNTIME + 90 + 10;
		3829	# 10 is the runtime save interval, for a monotonic clock
		3830	# 60 allows for the watchdog to kill the server.
		3831
		3832	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3833	and return;
		3834
		3835	# always fsync - this file is important
		3836	aio_fsync $fh
		3837	and return;
		3838
		3839	# touch it again to show we are up-to-date
		3840	aio_utime $fh, undef, undef;
		3841
		3842	close $fh
		3843	or return;
		3844
		3845	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3846	and return;
		3847
		3848	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3849
2697	}	3850	1
		3851	}
		3852
		3853	our $uuid_lock;
		3854	our $uuid_skip;
		3855
		3856	sub write_uuid_sync($) {
		3857	$uuid_skip ||= $_[0];
		3858
		3859	return if $uuid_lock;
		3860	local $uuid_lock = 1;
		3861
		3862	my $uuid = "$LOCALDIR/uuid";
		3863
		3864	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3865	or return;
		3866
		3867	my $value = uuid_seq uuid_cur;
		3868
		3869	unless ($value) {
		3870	info "cowardly refusing to write zero uuid value!\n";
		3871	return;
		3872	}
		3873
		3874	my $value = uuid_str $value + $uuid_skip;
		3875	$uuid_skip = 0;
		3876
		3877	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3878	and return;
		3879
		3880	# always fsync - this file is important
		3881	aio_fsync $fh
		3882	and return;
		3883
		3884	close $fh
		3885	or return;
		3886
		3887	aio_rename "$uuid~", $uuid
		3888	and return;
		3889
		3890	trace "uuid file written ($value).\n";
		3891
		3892	1
		3893
		3894	}
		3895
		3896	sub write_uuid($$) {
		3897	my ($skip, $sync) = @_;
		3898
		3899	$sync ? write_uuid_sync $skip
		3900	: async { write_uuid_sync $skip };
2698	}	3901	}
2699		3902
2700	sub emergency_save() {	3903	sub emergency_save() {
2701	my $freeze_guard = cf::freeze_mainloop;	3904	my $freeze_guard = cf::freeze_mainloop;
2702		3905
2703	warn "enter emergency perl save\n";	3906	info "emergency_perl_save: enter\n";
		3907
		3908	# this is a trade-off: we want to be very quick here, so
		3909	# save all maps without fsync, and later call a global sync
		3910	# (which in turn might be very very slow)
		3911	local $USE_FSYNC = 0;
2704		3912
2705	cf::sync_job {	3913	cf::sync_job {
		3914	cf::write_runtime_sync; # external watchdog should not bark
		3915
2706	# use a peculiar iteration method to avoid tripping on perl	3916	# use a peculiar iteration method to avoid tripping on perl
2707	# refcount bugs in for. also avoids problems with players	3917	# refcount bugs in for. also avoids problems with players
2708	# and maps saved/destroyed asynchronously.	3918	# and maps saved/destroyed asynchronously.
2709	warn "begin emergency player save\n";	3919	info "emergency_perl_save: begin player save\n";
2710	for my $login (keys %cf::PLAYER) {	3920	for my $login (keys %cf::PLAYER) {
2711	my $pl = $cf::PLAYER{$login} or next;	3921	my $pl = $cf::PLAYER{$login} or next;
2712	$pl->valid or next;	3922	$pl->valid or next;
		3923	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2713	$pl->save;	3924	$pl->save;
2714	}	3925	}
2715	warn "end emergency player save\n";	3926	info "emergency_perl_save: end player save\n";
2716		3927
2717	warn "begin emergency map save\n";	3928	cf::write_runtime_sync; # external watchdog should not bark
		3929
		3930	info "emergency_perl_save: begin map save\n";
2718	for my $path (keys %cf::MAP) {	3931	for my $path (keys %cf::MAP) {
2719	my $map = $cf::MAP{$path} or next;	3932	my $map = $cf::MAP{$path} or next;
2720	$map->valid or next;	3933	$map->valid or next;
2721	$map->save;	3934	$map->save;
2722	}	3935	}
2723	warn "end emergency map save\n";	3936	info "emergency_perl_save: end map save\n";
2724		3937
2725	warn "begin emergency database checkpoint\n";	3938	cf::write_runtime_sync; # external watchdog should not bark
		3939
		3940	info "emergency_perl_save: begin database checkpoint\n";
2726	BDB::db_env_txn_checkpoint $DB_ENV;	3941	BDB::db_env_txn_checkpoint $DB_ENV;
2727	warn "end emergency database checkpoint\n";	3942	info "emergency_perl_save: end database checkpoint\n";
		3943
		3944	info "emergency_perl_save: begin write uuid\n";
		3945	write_uuid_sync 1;
		3946	info "emergency_perl_save: end write uuid\n";
		3947
		3948	cf::write_runtime_sync; # external watchdog should not bark
		3949
		3950	trace "emergency_perl_save: syncing database to disk";
		3951	BDB::db_env_txn_checkpoint $DB_ENV;
		3952
		3953	info "emergency_perl_save: starting sync\n";
		3954	IO::AIO::aio_sync sub {
		3955	info "emergency_perl_save: finished sync\n";
		3956	};
		3957
		3958	cf::write_runtime_sync; # external watchdog should not bark
		3959
		3960	trace "emergency_perl_save: flushing outstanding aio requests";
		3961	while (IO::AIO::nreqs || BDB::nreqs) {
		3962	Coro::AnyEvent::sleep 0.01; # let the sync_job do it's thing
		3963	}
		3964
		3965	cf::write_runtime_sync; # external watchdog should not bark
2728	};	3966	};
2729		3967
2730	warn "leave emergency perl save\n";	3968	info "emergency_perl_save: leave\n";
2731	}	3969	}
2732		3970
2733	sub post_cleanup {	3971	sub post_cleanup {
2734	my ($make_core) = @_;	3972	my ($make_core) = @_;
2735		3973
		3974	IO::AIO::flush;
		3975
2736	warn Carp::longmess "post_cleanup backtrace"	3976	error Carp::longmess "post_cleanup backtrace"
2737	if $make_core;	3977	if $make_core;
		3978
		3979	my $fh = pidfile;
		3980	unlink $PIDFILE if <$fh> == $$;
		3981	}
		3982
		3983	# a safer delete_package, copied from Symbol
		3984	sub clear_package($) {
		3985	my $pkg = shift;
		3986
		3987	# expand to full symbol table name if needed
		3988	unless ($pkg =~ /^main::.*::$/) {
		3989	$pkg = "main$pkg" if $pkg =~ /^::/;
		3990	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3991	$pkg .= '::' unless $pkg =~ /::$/;
		3992	}
		3993
		3994	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3995	my $stem_symtab = *{$stem}{HASH};
		3996
		3997	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3998	or return;
		3999
		4000	# clear all symbols
		4001	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		4002	for my $name (keys %$leaf_symtab) {
		4003	_gv_clear *{"$pkg$name"};
		4004	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		4005	}
2738	}	4006	}
2739		4007
2740	sub do_reload_perl() {	4008	sub do_reload_perl() {
2741	# can/must only be called in main	4009	# can/must only be called in main
2742	if ($Coro::current != $Coro::main) {	4010	unless (in_main) {
2743	warn "can only reload from main coroutine";	4011	error "can only reload from main coroutine";
2744	return;	4012	return;
2745	}	4013	}
2746		4014
2747	warn "reloading...";	4015	return if $RELOAD++;
2748		4016
2749	warn "entering sync_job";	4017	my $t1 = AE::time;
2750		4018
		4019	while ($RELOAD) {
		4020	cf::get_slot 0.1, -1, "reload_perl";
		4021	info "perl_reload: reloading...";
		4022
		4023	trace "perl_reload: entering sync_job";
		4024
2751	cf::sync_job {	4025	cf::sync_job {
2752	cf::write_runtime; # external watchdog should not bark
2753	cf::emergency_save;	4026	#cf::emergency_save;
2754	cf::write_runtime; # external watchdog should not bark
2755		4027
2756	warn "syncing database to disk";
2757	BDB::db_env_txn_checkpoint $DB_ENV;
2758
2759	# if anything goes wrong in here, we should simply crash as we already saved
2760
2761	warn "cancelling all WF_AUTOCANCEL watchers";
2762	for (Event::all_watchers) {
2763	$_->cancel if $_->data & WF_AUTOCANCEL;
2764	}
2765
2766	warn "flushing outstanding aio requests";
2767	for (;;) {
2768	BDB::flush;
2769	IO::AIO::flush;
2770	Coro::cede;
2771	last unless IO::AIO::nreqs || BDB::nreqs;
2772	warn "iterate...";
2773	}
2774
2775	++$RELOAD;
2776
2777	warn "cancelling all extension coros";	4028	trace "perl_reload: cancelling all extension coros";
2778	$_->cancel for values %EXT_CORO;	4029	$_->cancel for values %EXT_CORO;
2779	%EXT_CORO = ();	4030	%EXT_CORO = ();
2780		4031
2781	warn "removing commands";	4032	trace "perl_reload: removing commands";
2782	%COMMAND = ();	4033	%COMMAND = ();
2783		4034
2784	warn "removing ext commands";	4035	trace "perl_reload: removing ext/exti commands";
2785	%EXTCMD = ();	4036	%EXTCMD = ();
		4037	%EXTICMD = ();
2786		4038
2787	warn "unloading/nuking all extensions";	4039	trace "perl_reload: unloading/nuking all extensions";
2788	for my $pkg (@EXTS) {	4040	for my $pkg (@EXTS) {
2789	warn "... unloading $pkg";	4041	trace "... unloading $pkg";
2790		4042
2791	if (my $cb = $pkg->can ("unload")) {	4043	if (my $cb = $pkg->can ("unload")) {
2792	eval {	4044	eval {
2793	$cb->($pkg);	4045	$cb->($pkg);
2794	1	4046	1
2795	} or warn "$pkg unloaded, but with errors: $@";	4047	} or error "$pkg unloaded, but with errors: $@";
		4048	}
		4049
		4050	trace "... clearing $pkg";
		4051	clear_package $pkg;
2796	}	4052	}
2797		4053
2798	warn "... nuking $pkg";
2799	Symbol::delete_package $pkg;
2800	}
2801
2802	warn "unloading all perl modules loaded from $LIBDIR";	4054	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2803	while (my ($k, $v) = each %INC) {	4055	while (my ($k, $v) = each %INC) {
2804	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	4056	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2805		4057
2806	warn "... unloading $k";	4058	trace "... unloading $k";
2807	delete $INC{$k};	4059	delete $INC{$k};
2808		4060
2809	$k =~ s/\.pm$//;	4061	$k =~ s/\.pm$//;
2810	$k =~ s/\//::/g;	4062	$k =~ s/\//::/g;
2811		4063
2812	if (my $cb = $k->can ("unload_module")) {	4064	if (my $cb = $k->can ("unload_module")) {
2813	$cb->();	4065	$cb->();
		4066	}
		4067
		4068	clear_package $k;
2814	}	4069	}
2815		4070
2816	Symbol::delete_package $k;
2817	}
2818
2819	warn "getting rid of safe::, as good as possible";	4071	trace "perl_reload: getting rid of safe::, as good as possible";
2820	Symbol::delete_package "safe::$_"	4072	clear_package "safe::$_"
2821	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	4073	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2822		4074
2823	warn "unloading cf.pm \"a bit\"";	4075	trace "perl_reload: unloading cf.pm \"a bit\"";
2824	delete $INC{"cf.pm"};	4076	delete $INC{"cf.pm"};
2825	delete $INC{"cf/pod.pm"};	4077	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2826		4078
2827	# don't, removes xs symbols, too,	4079	# don't, removes xs symbols, too,
2828	# and global variables created in xs	4080	# and global variables created in xs
2829	#Symbol::delete_package __PACKAGE__;	4081	#clear_package __PACKAGE__;
2830		4082
2831	warn "unload completed, starting to reload now";	4083	info "perl_reload: unload completed, starting to reload now";
2832		4084
2833	warn "reloading cf.pm";	4085	trace "perl_reload: reloading cf.pm";
2834	require cf;	4086	require cf;
2835	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	4087	cf::_connect_to_perl_1;
2836		4088
2837	warn "loading config and database again";	4089	trace "perl_reload: loading config and database again";
2838	cf::cfg_load;	4090	cf::reload_config;
2839		4091
2840	warn "loading extensions";	4092	trace "perl_reload: loading extensions";
2841	cf::load_extensions;	4093	cf::load_extensions;
2842		4094
		4095	if ($REATTACH_ON_RELOAD) {
2843	warn "reattaching attachments to objects/players";	4096	trace "perl_reload: reattaching attachments to objects/players";
2844	_global_reattach; # objects, sockets	4097	_global_reattach; # objects, sockets
2845	warn "reattaching attachments to maps";	4098	trace "perl_reload: reattaching attachments to maps";
2846	reattach $_ for values %MAP;	4099	reattach $_ for values %MAP;
2847	warn "reattaching attachments to players";	4100	trace "perl_reload: reattaching attachments to players";
2848	reattach $_ for values %PLAYER;	4101	reattach $_ for values %PLAYER;
		4102	}
2849		4103
2850	warn "leaving sync_job";	4104	cf::_post_init 1;
2851		4105
		4106	trace "perl_reload: leaving sync_job";
		4107
2852	1	4108	1
2853	} or do {	4109	} or do {
2854	warn $@;	4110	error $@;
2855	warn "error while reloading, exiting.";	4111	cf::cleanup "perl_reload: error, exiting.";
2856	exit 1;	4112	};
		4113
		4114	--$RELOAD;
2857	};	4115	}
2858		4116
2859	warn "reloaded";	4117	$t1 = AE::time - $t1;
		4118	info "perl_reload: completed in ${t1}s\n";
2860	};	4119	};
2861		4120
2862	our $RELOAD_WATCHER; # used only during reload	4121	our $RELOAD_WATCHER; # used only during reload
2863		4122
2864	sub reload_perl() {	4123	sub reload_perl() {
2865	# doing reload synchronously and two reloads happen back-to-back,	4124	# doing reload synchronously and two reloads happen back-to-back,
2866	# coro crashes during coro_state_free->destroy here.	4125	# coro crashes during coro_state_free->destroy here.
2867		4126
2868	$RELOAD_WATCHER ||= Event->timer (	4127	$RELOAD_WATCHER ||= cf::async {
2869	reentrant => 0,	4128	Coro::AIO::aio_wait cache_extensions;
2870	after => 0,	4129
2871	data => WF_AUTOCANCEL,	4130	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2872	cb => sub {
2873	do_reload_perl;	4131	do_reload_perl;
2874	undef $RELOAD_WATCHER;	4132	undef $RELOAD_WATCHER;
2875	},	4133	};
2876	);	4134	};
2877	}	4135	}
2878		4136
2879	register_command "reload" => sub {	4137	register_command "reload" => sub {
2880	my ($who, $arg) = @_;	4138	my ($who, $arg) = @_;
2881		4139
2882	if ($who->flag (FLAG_WIZ)) {	4140	if ($who->flag (FLAG_WIZ)) {
2883	$who->message ("reloading server.");	4141	$who->message ("reloading server.");
		4142	async {
		4143	$Coro::current->{desc} = "perl_reload";
2884	async { reload_perl };	4144	reload_perl;
		4145	};
2885	}	4146	}
2886	};	4147	};
2887		4148
2888	unshift @INC, $LIBDIR;	4149	#############################################################################
2889		4150
2890	my $bug_warning = 0;	4151	my $bug_warning = 0;
2891		4152
2892	our @WAIT_FOR_TICK;
2893	our @WAIT_FOR_TICK_BEGIN;
2894
2895	sub wait_for_tick {	4153	sub wait_for_tick() {
2896	return unless $TICK_WATCHER->is_active;	4154	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2897	return if $Coro::current == $Coro::main;
2898		4155
2899	my $signal = new Coro::Signal;	4156	$WAIT_FOR_TICK->wait;
2900	push @WAIT_FOR_TICK, $signal;
2901	$signal->wait;
2902	}	4157	}
2903		4158
2904	sub wait_for_tick_begin {	4159	sub wait_for_tick_begin() {
2905	return unless $TICK_WATCHER->is_active;	4160	return Coro::AnyEvent::poll if tick_inhibit || $Coro::current == $Coro::main;
2906	return if $Coro::current == $Coro::main;
2907		4161
2908	my $signal = new Coro::Signal;	4162	my $signal = new Coro::Signal;
2909	push @WAIT_FOR_TICK_BEGIN, $signal;	4163	push @WAIT_FOR_TICK_BEGIN, $signal;
2910	$signal->wait;	4164	$signal->wait;
2911	}	4165	}
2912		4166
2913	my $min = 1e6;#d#	4167	sub tick {
2914	my $avg = 10;
2915	$TICK_WATCHER = Event->timer (
2916	reentrant => 0,
2917	parked => 1,
2918	prio => 0,
2919	at => $NEXT_TICK || $TICK,
2920	data => WF_AUTOCANCEL,
2921	cb => sub {
2922	if ($Coro::current != $Coro::main) {	4168	if ($Coro::current != $Coro::main) {
2923	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4169	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2924	unless ++$bug_warning > 10;	4170	unless ++$bug_warning > 10;
2925	return;	4171	return;
2926	}	4172	}
2927		4173
2928	$NOW = $tick_start = Event::time;	4174	cf::one_tick; # one server iteration
2929		4175
2930	cf::server_tick; # one server iteration	4176	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2931		4177
2932	0 && sync_job {#d#	4178	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2933	for(1..10) {	4179	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2934	my $t = Event::time;	4180	Coro::async_pool {
2935	my $map = my $map = new_from_path cf::map "/tmp/x.map"	4181	$Coro::current->{desc} = "runtime saver";
2936	or die;	4182	write_runtime_sync
2937		4183	or error "ERROR: unable to write runtime file: $!";
2938	$map->width (50);
2939	$map->height (50);
2940	$map->alloc;
2941	$map->_load_objects ("/tmp/x.map", 1);
2942	my $t = Event::time - $t;
2943
2944	#next unless $t < 0.0013;#d#
2945	if ($t < $min) {
2946	$min = $t;
2947	}
2948	$avg = $avg * 0.99 + $t * 0.01;
2949	}
2950	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2951	exit 0;
2952	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2953	};	4184	};
		4185	}
2954		4186
2955	$RUNTIME += $TICK;
2956	$NEXT_TICK += $TICK;
2957
2958	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2959	$NEXT_RUNTIME_WRITE = $NOW + 10;
2960	Coro::async_pool {
2961	write_runtime
2962	or warn "ERROR: unable to write runtime file: $!";
2963	};
2964	}
2965
2966	# my $AFTER = Event::time;
2967	# warn $AFTER - $NOW;#d#
2968
2969	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4187	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2970	$sig->send;	4188	$sig->send;
2971	}	4189	}
2972	while (my $sig = shift @WAIT_FOR_TICK) {	4190	$WAIT_FOR_TICK->broadcast;
2973	$sig->send;
2974	}
2975		4191
2976	$NOW = Event::time;	4192	$LOAD = ($NOW - $TICK_START) / $TICK;
2977
2978	# if we are delayed by four ticks or more, skip them all
2979	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2980
2981	$TICK_WATCHER->at ($NEXT_TICK);
2982	$TICK_WATCHER->start;
2983
2984	$LOAD = ($NOW - $tick_start) / $TICK;
2985	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4193	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2986		4194
2987	_post_tick;	4195	if (0) {
2988		4196	if ($NEXT_TICK) {
2989		4197	my $jitter = $TICK_START - $NEXT_TICK;
		4198	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4199	debug "jitter $JITTER\n";#d#
		4200	}
2990	},	4201	}
2991	);	4202	}
2992		4203
2993	{	4204	{
2994	BDB::max_poll_time $TICK * 0.1;	4205	# configure BDB
2995	$BDB_POLL_WATCHER = Event->io (	4206
2996	reentrant => 0,
2997	fd => BDB::poll_fileno,
2998	poll => 'r',
2999	prio => 0,
3000	data => WF_AUTOCANCEL,
3001	cb => \&BDB::poll_cb,
3002	);
3003	BDB::min_parallel 8;	4207	BDB::min_parallel 16;
3004		4208	BDB::max_poll_reqs $TICK * 0.1;
3005	BDB::set_sync_prepare {	4209	#$AnyEvent::BDB::WATCHER->priority (1);
3006	my $status;
3007	my $current = $Coro::current;
3008	(
3009	sub {
3010	$status = $!;
3011	$current->ready; undef $current;
3012	},
3013	sub {
3014	Coro::schedule while defined $current;
3015	$! = $status;
3016	},
3017	)
3018	};
3019		4210
3020	unless ($DB_ENV) {	4211	unless ($DB_ENV) {
3021	$DB_ENV = BDB::db_env_create;	4212	$DB_ENV = BDB::db_env_create;
		4213	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4214	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4215	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4216	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4217	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
3022		4218
3023	cf::sync_job {	4219	cf::sync_job {
3024	eval {	4220	eval {
3025	BDB::db_env_open	4221	BDB::db_env_open
3026	$DB_ENV,	4222	$DB_ENV,
…		…
3028	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4224	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3029	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4225	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3030	0666;	4226	0666;
3031		4227
3032	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4228	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3033
3034	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
3035	$DB_ENV->set_lk_detect;
3036	};	4229	};
3037		4230
3038	cf::cleanup "db_env_open(db): $@" if $@;	4231	cf::cleanup "db_env_open(db): $@" if $@;
3039	};	4232	};
3040	}	4233	}
		4234
		4235	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4236	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4237	};
		4238	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4239	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4240	};
		4241	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4242	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4243	};
3041	}	4244	}
3042		4245
3043	{	4246	{
		4247	# configure IO::AIO
		4248
3044	IO::AIO::min_parallel 8;	4249	IO::AIO::min_parallel 8;
3045
3046	undef $Coro::AIO::WATCHER;
3047	IO::AIO::max_poll_time $TICK * 0.1;	4250	IO::AIO::max_poll_time $TICK * 0.1;
3048	$AIO_POLL_WATCHER = Event->io (	4251	undef $AnyEvent::AIO::WATCHER;
3049	reentrant => 0,
3050	data => WF_AUTOCANCEL,
3051	fd => IO::AIO::poll_fileno,
3052	poll => 'r',
3053	prio => 6,
3054	cb => \&IO::AIO::poll_cb,
3055	);
3056	}	4252	}
3057		4253
3058	my $_log_backtrace;	4254	our $_log_backtrace;
		4255	our $_log_backtrace_last;
3059		4256
3060	sub _log_backtrace {	4257	sub _log_backtrace {
3061	my ($msg, @addr) = @_;	4258	my ($msg, @addr) = @_;
3062		4259
3063	$msg =~ s/\n//;	4260	$msg =~ s/\n$//;
3064		4261
		4262	if ($_log_backtrace_last eq $msg) {
		4263	LOG llevInfo, "[ABT] $msg\n";
		4264	LOG llevInfo, "[ABT] [duplicate, suppressed]\n";
3065	# limit the # of concurrent backtraces	4265	# limit the # of concurrent backtraces
3066	if ($_log_backtrace < 2) {	4266	} elsif ($_log_backtrace < 2) {
		4267	$_log_backtrace_last = $msg;
3067	++$_log_backtrace;	4268	++$_log_backtrace;
		4269	my $perl_bt = Carp::longmess $msg;
3068	async {	4270	async {
		4271	$Coro::current->{desc} = "abt $msg";
		4272
3069	my @bt = fork_call {	4273	my @bt = fork_call {
3070	@addr = map { sprintf "%x", $_ } @addr;	4274	@addr = map { sprintf "%x", $_ } @addr;
3071	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4275	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3072	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4276	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3073	or die "addr2line: $!";	4277	or die "addr2line: $!";
…		…
3081	}	4285	}
3082		4286
3083	@funcs	4287	@funcs
3084	};	4288	};
3085		4289
3086	LOG llevInfo, "[ABT] $msg\n";	4290	LOG llevInfo, "[ABT] $perl_bt\n";
		4291	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3087	LOG llevInfo, "[ABT] $_\n" for @bt;	4292	LOG llevInfo, "[ABT] $_\n" for @bt;
3088	--$_log_backtrace;	4293	--$_log_backtrace;
3089	};	4294	};
3090	} else {	4295	} else {
3091	LOG llevInfo, "[ABT] $msg\n";	4296	LOG llevInfo, "[ABT] $msg\n";
3092	LOG llevInfo, "[ABT] [suppressed]\n";	4297	LOG llevInfo, "[ABT] [overload, suppressed]\n";
3093	}	4298	}
3094	}	4299	}
3095		4300
3096	# load additional modules	4301	# load additional modules
3097	use cf::pod;	4302	require "cf/$_.pm" for @EXTRA_MODULES;
		4303	cf::_connect_to_perl_2;
3098		4304
3099	END { cf::emergency_save }	4305	END { cf::emergency_save }
3100		4306
3101	1	4307	1
3102		4308

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