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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.312 by root, Sat Jul 21 18:01:26 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	94
55	our $RANDOM_MAPS = cf::localdir . "/random";	95	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
57		101
58	binmode STDOUT;	102	binmode STDOUT;
59	binmode STDERR;	103	binmode STDERR;
60		104
61	# read virtual server time, if available	105	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
66	}	110	}
67		111
68	mkdir cf::localdir;	112	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		114
74	# a special map that is always available	115	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		116
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	117	sub cf::map::normalise;
78		118
79	#############################################################################	119	#############################################################################
80		120
81	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
82		122
…		…
89	=item $cf::RUNTIME	129	=item $cf::RUNTIME
90		130
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	132	every server tick.
93		133
94	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		137
96	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
98		142
99	=item $cf::NOW	143	=item $cf::NOW
100		144
101	The time of the last (current) server tick.	145	The time of the last (current) server tick.
102		146
103	=item $cf::TICK	147	=item $cf::TICK
104		148
105	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
106		160
107	=item %cf::CFG	161	=item %cf::CFG
108		162
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
111		177
112	=back	178	=back
113		179
114	=cut	180	=cut
115		181
116	BEGIN {	182	BEGIN {
117	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	184	my $msg = join "", @_;
119	utf8::encode $msg;
120		185
121	$msg .= "\n"	186	$msg .= "\n"
122	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
123		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
125	};	193	};
126	}	194	}
127		195
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		203
135	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	205	# within the Safe compartment.
137	for my $pkg (qw(	206	for my $pkg (qw(
138	cf::global cf::attachable	207	cf::global cf::attachable
…		…
147		216
148	$Event::DIED = sub {	217	$Event::DIED = sub {
149	warn "error in event callback: @_";	218	warn "error in event callback: @_";
150	};	219	};
151		220
152	my %ext_pkg;	221	#############################################################################
153	my @exts;
154	my @hook;
155		222
156	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
157		224
158	=over 4	225	=over 4
159		226
160	=cut	227	=item dumpval $ref
161		228
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
163		249
164	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
165		251
166	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
167		253
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
176		255
177	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
178		257
179	=cut	258	=cut
180		259
181	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
183	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
		264
		265	=item cf::lock_wait $string
		266
		267	Wait until the given lock is available. See cf::lock_acquire.
		268
		269	=item my $lock = cf::lock_acquire $string
		270
		271	Wait until the given lock is available and then acquires it and returns
		272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		273	for example when the coroutine gets canceled), the lock is automatically
		274	returned.
		275
		276	Lock names should begin with a unique identifier (for example, cf::map::find
		277	uses map_find and cf::map::load uses map_load).
		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
		283	=cut
		284
		285	our %LOCK;
		286
		287	sub lock_wait($) {
		288	my ($key) = @_;
		289
		290	# wait for lock, if any
		291	while ($LOCK{$key}) {
		292	push @{ $LOCK{$key} }, $Coro::current;
		293	Coro::schedule;
		294	}
184	}	295	}
		296
		297	sub lock_acquire($) {
		298	my ($key) = @_;
		299
		300	# wait, to be sure we are not locked
		301	lock_wait $key;
		302
		303	$LOCK{$key} = [];
		304
		305	Coro::guard {
		306	# wake up all waiters, to be on the safe side
		307	$_->ready for @{ delete $LOCK{$key} };
		308	}
		309	}
		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
		317	sub freeze_mainloop {
		318	return unless $TICK_WATCHER->is_active;
		319
		320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
		323	$TICK_WATCHER->stop;
		324	$guard
		325	}
		326
		327	=item cf::async { BLOCK }
		328
		329	Currently the same as Coro::async_pool, meaning you cannot use
		330	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		331	thing you are allowed to do is call C<prio> on it.
		332
		333	=cut
		334
		335	BEGIN { *async = \&Coro::async_pool }
185		336
186	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
187		338
188	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
191		343
192	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
195	fast or be very important.	347	fast or be very important.
…		…
197	=cut	349	=cut
198		350
199	sub sync_job(&) {	351	sub sync_job(&) {
200	my ($job) = @_;	352	my ($job) = @_;
201		353
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
		357	# this is the main coro, too bad, we have to block
		358	# till the operation succeeds, freezing the server :/
		359
212	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	361	# (but this is cancel-safe)
		362	my $freeze_guard = freeze_mainloop;
		363
		364	my $busy = 1;
		365	my @res;
		366
		367	(async {
		368	@res = eval { $job->() };
		369	warn $@ if $@;
		370	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	371	})->prio (Coro::PRIO_MAX);
		372
215	while ($busy) {	373	while ($busy) {
216	Coro::cede_notself;	374	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	375	}
		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
		383
		384	wantarray ? @res : $res[0]
219	} else {	385	} else {
220	$coro->join;	386	# we are in another coroutine, how wonderful, everything just works
		387
		388	$job->()
221	}	389	}
222
223	wantarray ? @res : $res[0]
224	}	390	}
225		391
226	=item $coro = cf::coro { BLOCK }	392	=item $coro = cf::async_ext { BLOCK }
227		393
228	Creates and returns a new coro. This coro is automcatially being canceled	394	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	395	extension calling this is being unloaded.
230		396
231	=cut	397	=cut
232		398
233	sub coro(&) {	399	sub async_ext(&) {
234	my $cb = shift;	400	my $cb = shift;
235		401
236	my $coro; $coro = async {	402	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		403
243	$coro->on_destroy (sub {	404	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	405	delete $EXT_CORO{$coro+0};
245	});	406	});
246	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
247		408
248	$coro	409	$coro
249	}	410	}
250		411
251	sub write_runtime {	412	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		413
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	414	Executes the given code block with the given arguments in a seperate
255	or return;	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
256		418
257	my $value = $cf::RUNTIME;	419	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		420
261	aio_fsync $fh	421	sub _store_scalar {
262	and return;	422	open my $fh, ">", \my $buf
263		423	or die "fork_call: cannot open fh-to-buf in child : $!";
		424	Storable::store_fd $_[0], $fh;
264	close $fh	425	close $fh;
265	or return;
266		426
267	aio_rename "$runtime~", $runtime	427	$buf
268	and return;	428	}
269		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
270	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
		588	}
		589
		590	=item cf::datalog type => key => value, ...
		591
		592	Log a datalog packet of the given type with the given key-value pairs.
		593
		594	=cut
		595
		596	sub datalog($@) {
		597	my ($type, %kv) = @_;
		598	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	599	}
272		600
273	=back	601	=back
274		602
275	=cut	603	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		604
387	#############################################################################	605	#############################################################################
388		606
389	=head2 ATTACHABLE OBJECTS	607	=head2 ATTACHABLE OBJECTS
390		608
…		…
392	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
394		612
395	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	615	Crossfire TRT).
398		616
399	=over 4	617	=over 4
400		618
401	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
402		620
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	734	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	735	our @CB_MAP = ();
518		736
519	my %attachment;	737	my %attachment;
520		738
		739	sub cf::attachable::thawer_merge {
		740	# simply override everything except _meta
		741	local $_[0]{_meta};
		742	%{$_[0]} = %{$_[1]};
		743	}
		744
521	sub _attach_cb($$$$) {	745	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	746	my ($registry, $event, $prio, $cb) = @_;
523		747
524	use sort 'stable';	748	use sort 'stable';
525		749
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
560		784
561	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		789
566	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	791	my $pkg = shift @arg;
568		792
569	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
599	}	823	}
600		824
601	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
602	} else {	826	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	828	}
605		829
606	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
607	}	831	}
608		832
…		…
610	if (ref $_[0]) {	834	if (ref $_[0]) {
611	_object_attach @_;	835	_object_attach @_;
612	} else {	836	} else {
613	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
614	}	838	}
		839	_recalc_want;
615	};	840	};
616		841
617	# all those should be optimised	842	# all those should be optimised
618	sub cf::attachable::detach {	843	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
623	reattach ($obj);	848	reattach ($obj);
624	} else {	849	} else {
625	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
626	}	851	}
		852	_recalc_want;
627	};	853	};
628		854
629	sub cf::attachable::attached {	855	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
631		857
…		…
646	";	872	";
647	die if $@;	873	die if $@;
648	}	874	}
649		875
650	our $override;	876	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		878
653	sub override {	879	sub override {
654	$override = 1;	880	$override = 1;
655	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
656	}	882	}
657		883
658	sub do_invoke {	884	sub do_invoke {
659	my $event = shift;	885	my $event = shift;
660	my $callbacks = shift;	886	my $callbacks = shift;
661		887
662	@invoke_results = ();	888	@INVOKE_RESULTS = ();
663		889
664	local $override;	890	local $override;
665		891
666	for (@$callbacks) {	892	for (@$callbacks) {
667	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
684		910
685	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
686		912
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		916
691	=back	917	=back
692		918
693	=cut	919	=cut
694		920
695	#############################################################################	921	#############################################################################
696	# object support	922	# object support
		923	#
		924
		925	sub _can_merge {
		926	my ($ob1, $ob2) = @_;
		927
		928	local $Storable::canonical = 1;
		929	my $fob1 = Storable::freeze $ob1;
		930	my $fob2 = Storable::freeze $ob2;
		931
		932	$fob1 eq $fob2
		933	}
697		934
698	sub reattach {	935	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	936	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	937	my ($obj) = @_;
		938
		939	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		940
702	my $registry = $obj->registry;	941	my $registry = $obj->registry;
703		942
704	@$registry = ();	943	@$registry = ();
705		944
…		…
752	$filename, length $$rdata, scalar @$objs;	991	$filename, length $$rdata, scalar @$objs;
753		992
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	993	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	994	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	995	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	996	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	997	close $fh;
759		998
760	if (@$objs) {	999	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1000	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1001	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1002	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1003	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1004	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1005	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1006	aio_rename "$filename.pst~", "$filename.pst";
768	}	1007	}
769	} else {	1008	} else {
770	aio_unlink "$filename.pst";	1009	aio_unlink "$filename.pst";
…		…
798	or return;	1037	or return;
799		1038
800	unless (aio_stat "$filename.pst") {	1039	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1040	(aio_load "$filename.pst", $av) >= 0
802	or return;	1041	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1042	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1043	}
805		1044
		1045	warn sprintf "loading %s (%d)\n",
		1046	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	1047	return ($data, $av);
807	}	1048	}
		1049
		1050	=head2 COMMAND CALLBACKS
		1051
		1052	=over 4
		1053
		1054	=cut
808		1055
809	#############################################################################	1056	#############################################################################
810	# command handling &c	1057	# command handling &c
811		1058
812	=item cf::register_command $name => \&callback($ob,$args);	1059	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1072	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1073	}
827		1074
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1075	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1076
830	Register a callbackf ro execution when the client sends an extcmd packet.	1077	Register a callback for execution when the client sends an (synchronous)
		1078	extcmd packet. Ext commands will be processed in the order they are
		1079	received by the server, like other user commands. The first argument is
		1080	the logged-in player. Ext commands can only be processed after a player
		1081	has logged in successfully.
831		1082
832	If the callback returns something, it is sent back as if reply was being	1083	If the callback returns something, it is sent back as if reply was being
833	called.	1084	called.
834		1085
		1086	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1087
		1088	Register a callback for execution when the client sends an (asynchronous)
		1089	exticmd packet. Exti commands are processed by the server as soon as they
		1090	are received, i.e. out of order w.r.t. other commands. The first argument
		1091	is a client socket. Exti commands can be received anytime, even before
		1092	log-in.
		1093
		1094	If the callback returns something, it is sent back as if reply was being
		1095	called.
		1096
835	=cut	1097	=cut
836		1098
837	sub register_extcmd {	1099	sub register_extcmd {
838	my ($name, $cb) = @_;	1100	my ($name, $cb) = @_;
839		1101
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1102	$EXTCMD{$name} = $cb;
		1103	}
		1104
		1105	sub register_exticmd {
		1106	my ($name, $cb) = @_;
		1107
		1108	$EXTICMD{$name} = $cb;
844	}	1109	}
845		1110
846	cf::player->attach (	1111	cf::player->attach (
847	on_command => sub {	1112	on_command => sub {
848	my ($pl, $name, $params) = @_;	1113	my ($pl, $name, $params) = @_;
…		…
857	cf::override;	1122	cf::override;
858	},	1123	},
859	on_extcmd => sub {	1124	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1125	my ($pl, $buf) = @_;
861		1126
862	my $msg = eval { from_json $buf };	1127	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1128
864	if (ref $msg) {	1129	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1130	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1131	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	1132	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	1133	}
869	}	1134	}
870	} else {	1135	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1136	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		1138
874	cf::override;	1139	cf::override;
875	},	1140	},
876	);	1141	);
877		1142
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1143	sub load_extensions {
		1144	cf::sync_job {
		1145	my %todo;
		1146
		1147	for my $path (<$LIBDIR/*.ext>) {
		1148	next unless -r $path;
		1149
		1150	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1151	my $base = $1;
		1152	my $pkg = $1;
		1153	$pkg =~ s/[^[:word:]]/_/g;
		1154	$pkg = "ext::$pkg";
		1155
		1156	open my $fh, "<:utf8", $path
		1157	or die "$path: $!";
		1158
		1159	my $source = do { local $/; <$fh> };
		1160
		1161	my %ext = (
		1162	path => $path,
		1163	base => $base,
		1164	pkg => $pkg,
		1165	);
		1166
		1167	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1168	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1169
		1170	$ext{source} =
		1171	"package $pkg; use strict; use utf8;\n"
		1172	. "#line 1 \"$path\"\n{\n"
		1173	. $source
		1174	. "\n};\n1";
		1175
		1176	$todo{$base} = \%ext;
		1177	}
		1178
		1179	my %done;
		1180	while (%todo) {
		1181	my $progress;
		1182
		1183	while (my ($k, $v) = each %todo) {
		1184	for (split /,\s*/, $v->{meta}{depends}) {
		1185	goto skip
		1186	unless exists $done{$_};
		1187	}
		1188
		1189	warn "... loading '$k' into '$v->{pkg}'\n";
		1190
		1191	unless (eval $v->{source}) {
		1192	my $msg = $@ ? "$v->{path}: $@\n"
		1193	: "$v->{base}: extension inactive.\n";
		1194
		1195	if (exists $v->{meta}{mandatory}) {
		1196	warn $msg;
		1197	warn "mandatory extension failed to load, exiting.\n";
		1198	exit 1;
		1199	}
		1200
		1201	warn $msg;
		1202	}
		1203
		1204	$done{$k} = delete $todo{$k};
		1205	push @EXTS, $v->{pkg};
		1206	$progress = 1;
		1207	}
		1208
		1209	skip:
		1210	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1211	unless $progress;
		1212	}
		1213	};
		1214	}
		1215
		1216	#############################################################################
		1217
		1218	=back
		1219
		1220	=head2 CORE EXTENSIONS
		1221
		1222	Functions and methods that extend core crossfire objects.
		1223
		1224	=cut
		1225
		1226	package cf::player;
		1227
		1228	use Coro::AIO;
		1229
		1230	=head3 cf::player
		1231
		1232	=over 4
		1233
		1234	=item cf::player::find $login
		1235
		1236	Returns the given player object, loading it if necessary (might block).
		1237
		1238	=cut
		1239
		1240	sub playerdir($) {
		1241	"$PLAYERDIR/"
		1242	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1243	}
		1244
		1245	sub path($) {
		1246	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1247
		1248	(playerdir $login) . "/playerdata"
		1249	}
		1250
		1251	sub find_active($) {
		1252	$cf::PLAYER{$_[0]}
		1253	and $cf::PLAYER{$_[0]}->active
		1254	and $cf::PLAYER{$_[0]}
		1255	}
		1256
		1257	sub exists($) {
		1258	my ($login) = @_;
		1259
		1260	$cf::PLAYER{$login}
		1261	or cf::sync_job { !aio_stat path $login }
		1262	}
		1263
		1264	sub find($) {
		1265	return $cf::PLAYER{$_[0]} || do {
		1266	my $login = $_[0];
		1267
		1268	my $guard = cf::lock_acquire "user_find:$login";
		1269
		1270	$cf::PLAYER{$_[0]} || do {
		1271	# rename old playerfiles to new ones
		1272	#TODO: remove when no longer required
		1273	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1274	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1275	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1276	aio_unlink +(playerdir $login) . "/$login.pl";
		1277
		1278	my $pl = load_pl path $login
		1279	or return;
		1280	$cf::PLAYER{$login} = $pl
		1281	}
		1282	}
		1283	}
		1284
		1285	sub save($) {
		1286	my ($pl) = @_;
		1287
		1288	return if $pl->{deny_save};
		1289
		1290	my $path = path $pl;
		1291	my $guard = cf::lock_acquire "user_save:$path";
		1292
		1293	return if $pl->{deny_save};
		1294
		1295	aio_mkdir playerdir $pl, 0770;
		1296	$pl->{last_save} = $cf::RUNTIME;
		1297
		1298	$pl->save_pl ($path);
		1299	Coro::cede;
		1300	}
		1301
		1302	sub new($) {
		1303	my ($login) = @_;
		1304
		1305	my $self = create;
		1306
		1307	$self->ob->name ($login);
		1308	$self->{deny_save} = 1;
		1309
		1310	$cf::PLAYER{$login} = $self;
		1311
		1312	$self
		1313	}
		1314
		1315	=item $pl->quit_character
		1316
		1317	Nukes the player without looking back. If logged in, the connection will
		1318	be destroyed. May block for a long time.
		1319
		1320	=cut
		1321
		1322	sub quit_character {
		1323	my ($pl) = @_;
		1324
		1325	my $name = $pl->ob->name;
		1326
		1327	$pl->{deny_save} = 1;
		1328	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1329
		1330	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1331	$pl->deactivate;
		1332	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1333	$pl->ns->destroy if $pl->ns;
		1334
		1335	my $path = playerdir $pl;
		1336	my $temp = "$path~$cf::RUNTIME~deleting~";
		1337	aio_rename $path, $temp;
		1338	delete $cf::PLAYER{$pl->ob->name};
		1339	$pl->destroy;
		1340
		1341	my $prefix = qr<^~\Q$name\E/>;
		1342
		1343	# nuke player maps
		1344	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1345
		1346	IO::AIO::aio_rmtree $temp;
		1347	}
		1348
		1349	=item $pl->kick
		1350
		1351	Kicks a player out of the game. This destroys the connection.
		1352
		1353	=cut
		1354
		1355	sub kick {
		1356	my ($pl, $kicker) = @_;
		1357
		1358	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1359	$pl->killer ("kicked");
		1360	$pl->ns->destroy;
		1361	}
		1362
		1363	=item cf::player::list_logins
		1364
		1365	Returns am arrayref of all valid playernames in the system, can take a
		1366	while and may block, so not sync_job-capable, ever.
		1367
		1368	=cut
		1369
		1370	sub list_logins {
		1371	my $dirs = aio_readdir $PLAYERDIR
		1372	or return [];
		1373
		1374	my @logins;
		1375
		1376	for my $login (@$dirs) {
		1377	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1378	aio_read $fh, 0, 512, my $buf, 0 or next;
		1379	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1380
		1381	utf8::decode $login;
		1382	push @logins, $login;
		1383	}
		1384
		1385	\@logins
		1386	}
		1387
		1388	=item $player->maps
		1389
		1390	Returns an arrayref of map paths that are private for this
		1391	player. May block.
		1392
		1393	=cut
		1394
		1395	sub maps($) {
		1396	my ($pl) = @_;
		1397
		1398	$pl = ref $pl ? $pl->ob->name : $pl;
		1399
		1400	my $files = aio_readdir playerdir $pl
		1401	or return;
		1402
		1403	my @paths;
		1404
		1405	for (@$files) {
		1406	utf8::decode $_;
		1407	next if /\.(?:pl|pst)$/;
		1408	next unless /^$PATH_SEP/o;
		1409
		1410	push @paths, cf::map::normalise "~$pl/$_";
		1411	}
		1412
		1413	\@paths
		1414	}
		1415
		1416	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1417
		1418	Expand crossfire pod fragments into protocol xml.
		1419
		1420	=cut
		1421
		1422	sub expand_cfpod {
		1423	((my $self), (local $_)) = @_;
		1424
		1425	# escape & and <
		1426	s/&/&amp;/g;
		1427	s/(?<![BIUGH])</&lt;/g;
		1428
		1429	# this is buggy, it needs to properly take care of nested <'s
		1430
		1431	1 while
		1432	# replace B<>, I<>, U<> etc.
		1433	s/B<([^\>]*)>/<b>$1<\/b>/
		1434	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1435	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1436	# replace G<male|female> tags
		1437	|| s{G<([^>|]*)\|([^>]*)>}{
		1438	$self->gender ? $2 : $1
		1439	}ge
		1440	# replace H<hint text>
		1441	|| s{H<([^\>]*)>}
		1442	{
		1443	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1444	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1445	"")
		1446	[$self->{hintmode}]
		1447	}ge;
		1448
		1449	# create single paragraphs (very hackish)
		1450	s/(?<=\S)\n(?=\w)/ /g;
		1451
		1452	# compress some whitespace
		1453	s/\s+\n/\n/g; # ws line-ends
		1454	s/\n\n+/\n/g; # double lines
		1455	s/^\n+//; # beginning lines
		1456	s/\n+$//; # ending lines
		1457
		1458	$_
		1459	}
		1460
		1461	sub hintmode {
		1462	$_[0]{hintmode} = $_[1] if @_ > 1;
		1463	$_[0]{hintmode}
		1464	}
		1465
		1466	=item $player->ext_reply ($msgid, %msg)
		1467
		1468	Sends an ext reply to the player.
		1469
		1470	=cut
		1471
		1472	sub ext_reply($$%) {
		1473	my ($self, $id, %msg) = @_;
		1474
		1475	$msg{msgid} = $id;
		1476	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1477	}
		1478
		1479	=item $player->ext_event ($type, %msg)
		1480
		1481	Sends an ext event to the client.
		1482
		1483	=cut
		1484
		1485	sub ext_event($$%) {
		1486	my ($self, $type, %msg) = @_;
		1487
		1488	$self->ns->ext_event ($type, %msg);
		1489	}
		1490
		1491	=head3 cf::region
		1492
		1493	=over 4
		1494
		1495	=cut
		1496
		1497	package cf::region;
		1498
		1499	=item cf::region::find_by_path $path
		1500
		1501	Tries to decuce the likely region for a map knowing only its path.
		1502
		1503	=cut
		1504
		1505	sub find_by_path($) {
885	my ($path) = @_;	1506	my ($path) = @_;
886		1507
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1508	my ($match, $specificity);
888	my $base = $1;
889	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892		1509
893	warn "loading '$path' into '$pkg'\n";	1510	for my $region (list) {
894		1511	if ($region->{match} && $path =~ $region->{match}) {
895	open my $fh, "<:utf8", $path	1512	($match, $specificity) = ($region, $region->specificity)
896	or die "$path: $!";	1513	if $region->specificity > $specificity;
897		1514	}
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	1515	}
927		1516
928	# remove commands	1517	$match
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}
953
954	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;
957	eval {
958	load_extension $ext;
959	1
960	} or warn "$ext not loaded: $@";
961	}
962	}
963
964	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001
1002	=head2 CORE EXTENSIONS
1003
1004	Functions and methods that extend core crossfire objects.
1005
1006	=head3 cf::player
1007
1008	=over 4
1009
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut
1015
1016	sub cf::player::exists($) {
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022
1023	Sends an ext reply to the player.
1024
1025	=cut
1026
1027	sub cf::player::ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;
1029
1030	$msg{msgid} = $id;
1031
1032	$self->send ("ext " . to_json \%msg);
1033	}	1518	}
1034		1519
1035	=back	1520	=back
1036
1037		1521
1038	=head3 cf::map	1522	=head3 cf::map
1039		1523
1040	=over 4	1524	=over 4
1041		1525
…		…
1044	package cf::map;	1528	package cf::map;
1045		1529
1046	use Fcntl;	1530	use Fcntl;
1047	use Coro::AIO;	1531	use Coro::AIO;
1048		1532
		1533	use overload
		1534	'""' => \&as_string,
		1535	fallback => 1;
		1536
1049	our $MAX_RESET = 7200;	1537	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1538	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1539
1054	sub generate_random_map {	1540	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1541	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1542	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1543	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1544	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1545	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1546	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1547	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1548	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1549	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1550	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1551	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1552	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1553	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1554	(cf::region::find $rmp->{region}), $rmp->{custom}
		1555	)
		1556	}
		1557
		1558	=item cf::map->register ($regex, $prio)
		1559
		1560	Register a handler for the map path matching the given regex at the
		1561	givne priority (higher is better, built-in handlers have priority 0, the
		1562	default).
		1563
		1564	=cut
		1565
		1566	sub register {
		1567	my (undef, $regex, $prio) = @_;
		1568	my $pkg = caller;
		1569
		1570	no strict;
		1571	push @{"$pkg\::ISA"}, __PACKAGE__;
		1572
		1573	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1574	}
		1575
		1576	# also paths starting with '/'
		1577	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1578
		1579	sub thawer_merge {
		1580	my ($self, $merge) = @_;
		1581
		1582	# we have to keep some variables in memory intact
		1583	local $self->{path};
		1584	local $self->{load_path};
		1585
		1586	$self->SUPER::thawer_merge ($merge);
		1587	}
		1588
		1589	sub normalise {
		1590	my ($path, $base) = @_;
		1591
		1592	$path = "$path"; # make sure its a string
		1593
		1594	$path =~ s/\.map$//;
		1595
		1596	# map plan:
		1597	#
		1598	# /! non-realised random map exit (special hack!)
		1599	# {... are special paths that are not being touched
		1600	# ?xxx/... are special absolute paths
		1601	# ?random/... random maps
		1602	# /... normal maps
		1603	# ~user/... per-player map of a specific user
		1604
		1605	$path =~ s/$PATH_SEP/\//go;
		1606
		1607	# treat it as relative path if it starts with
		1608	# something that looks reasonable
		1609	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1610	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1611
		1612	$base =~ s{[^/]+/?$}{};
		1613	$path = "$base/$path";
		1614	}
		1615
		1616	for ($path) {
		1617	redo if s{//}{/};
		1618	redo if s{/\.?/}{/};
		1619	redo if s{/[^/]+/\.\./}{/};
		1620	}
		1621
		1622	$path
		1623	}
		1624
		1625	sub new_from_path {
		1626	my (undef, $path, $base) = @_;
		1627
		1628	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1629
		1630	$path = normalise $path, $base;
		1631
		1632	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1633	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1634	my $self = bless cf::map::new, $pkg;
		1635	$self->{path} = $path; $self->path ($path);
		1636	$self->init; # pass $1 etc.
		1637	return $self;
		1638	}
		1639	}
		1640
		1641	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1642	()
		1643	}
		1644
		1645	sub init {
		1646	my ($self) = @_;
		1647
		1648	$self
		1649	}
		1650
		1651	sub as_string {
		1652	my ($self) = @_;
		1653
		1654	"$self->{path}"
		1655	}
		1656
		1657	# the displayed name, this is a one way mapping
		1658	sub visible_name {
		1659	&as_string
		1660	}
		1661
		1662	# the original (read-only) location
		1663	sub load_path {
		1664	my ($self) = @_;
		1665
		1666	"$MAPDIR/$self->{path}.map"
		1667	}
		1668
		1669	# the temporary/swap location
		1670	sub save_path {
		1671	my ($self) = @_;
		1672
		1673	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1674	"$TMPDIR/$path.map"
		1675	}
		1676
		1677	# the unique path, undef == no special unique path
		1678	sub uniq_path {
		1679	my ($self) = @_;
		1680
		1681	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1682	"$UNIQUEDIR/$path"
1071	}	1683	}
1072		1684
1073	# and all this just because we cannot iterate over	1685	# and all this just because we cannot iterate over
1074	# all maps in C++...	1686	# all maps in C++...
1075	sub change_all_map_light {	1687	sub change_all_map_light {
1076	my ($change) = @_;	1688	my ($change) = @_;
1077		1689
1078	$_->change_map_light ($change) for values %cf::MAP;	1690	$_->change_map_light ($change)
		1691	for grep $_->outdoor, values %cf::MAP;
1079	}	1692	}
1080		1693
		1694	sub decay_objects {
		1695	my ($self) = @_;
		1696
		1697	return if $self->{deny_reset};
		1698
		1699	$self->do_decay_objects;
		1700	}
		1701
		1702	sub unlink_save {
		1703	my ($self) = @_;
		1704
		1705	utf8::encode (my $save = $self->save_path);
		1706	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1707	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1708	}
		1709
1081	sub try_load_header($) {	1710	sub load_header_from($) {
1082	my ($path) = @_;	1711	my ($self, $path) = @_;
1083		1712
1084	utf8::encode $path;	1713	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1714	#aio_open $path, O_RDONLY, 0
		1715	# or return;
		1716
		1717	$self->_load_header ($path)
1086	or return;	1718	or return;
1087		1719
1088	my $map = cf::map::new	1720	$self->{load_path} = $path;
		1721
		1722	1
		1723	}
		1724
		1725	sub load_header_orig {
		1726	my ($self) = @_;
		1727
		1728	$self->load_header_from ($self->load_path)
		1729	}
		1730
		1731	sub load_header_temp {
		1732	my ($self) = @_;
		1733
		1734	$self->load_header_from ($self->save_path)
		1735	}
		1736
		1737	sub prepare_temp {
		1738	my ($self) = @_;
		1739
		1740	$self->last_access ((delete $self->{last_access})
		1741	|| $cf::RUNTIME); #d#
		1742	# safety
		1743	$self->{instantiate_time} = $cf::RUNTIME
		1744	if $self->{instantiate_time} > $cf::RUNTIME;
		1745	}
		1746
		1747	sub prepare_orig {
		1748	my ($self) = @_;
		1749
		1750	$self->{load_original} = 1;
		1751	$self->{instantiate_time} = $cf::RUNTIME;
		1752	$self->last_access ($cf::RUNTIME);
		1753	$self->instantiate;
		1754	}
		1755
		1756	sub load_header {
		1757	my ($self) = @_;
		1758
		1759	if ($self->load_header_temp) {
		1760	$self->prepare_temp;
		1761	} else {
		1762	$self->load_header_orig
1089	or return;	1763	or return;
		1764	$self->prepare_orig;
		1765	}
1090		1766
1091	$map->load_header ($path)	1767	$self->{deny_reset} = 1
1092	or return;	1768	if $self->no_reset;
1093		1769
1094	$map->{load_path} = $path;	1770	$self->default_region (cf::region::find_by_path $self->{path})
1095	use Data::Dumper; warn Dumper $map;#d#	1771	unless $self->default_region;
1096		1772
1097	$map	1773	1
1098	}	1774	}
1099		1775
		1776	sub find;
1100	sub find_map {	1777	sub find {
1101	my ($path, $origin) = @_;	1778	my ($path, $origin) = @_;
1102		1779
1103	#warn "find_map<$path,$origin>\n";#d#	1780	$path = normalise $path, $origin && $origin->path;
1104		1781
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1782	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1783
1108	$cf::MAP{$key} || do {	1784	$cf::MAP{$path} || do {
1109	# do it the slow way	1785	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1786	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1787	or return;
1124		1788
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	1789	$map->{last_save} = $cf::RUNTIME;
1136		1790
1137	$map->reset if $map->should_reset;	1791	$map->load_header
		1792	or return;
1138		1793
		1794	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1795	# doing this can freeze the server in a sync job, obviously
		1796	#$cf::WAIT_FOR_TICK->wait;
		1797	$map->reset;
		1798	undef $guard;
		1799	return find $path;
		1800	}
		1801
1139	$cf::MAP{$key} = $map	1802	$cf::MAP{$path} = $map
1140	}	1803	}
1141	}	1804	}
		1805
		1806	sub pre_load { }
		1807	sub post_load { }
1142		1808
1143	sub load {	1809	sub load {
1144	my ($self) = @_;	1810	my ($self) = @_;
1145		1811
1146	return if $self->in_memory != cf::MAP_SWAPPED;	1812	local $self->{deny_reset} = 1; # loading can take a long time
1147
1148	$self->in_memory (cf::MAP_LOADING);
1149		1813
1150	my $path = $self->{path};	1814	my $path = $self->{path};
1151		1815
		1816	{
		1817	my $guard = cf::lock_acquire "map_load:$path";
		1818
		1819	return if $self->in_memory != cf::MAP_SWAPPED;
		1820
		1821	$self->in_memory (cf::MAP_LOADING);
		1822
1152	$self->alloc;	1823	$self->alloc;
		1824
		1825	$self->pre_load;
		1826	Coro::cede;
		1827
1153	$self->load_objects ($self->{load_path}, 1)	1828	$self->_load_objects ($self->{load_path}, 1)
1154	or return;	1829	or return;
1155		1830
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	1831	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1832	if delete $self->{load_original};
1157		1833
1158	if (my $uniq = $path->uniq_path) {	1834	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	1835	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	1836	if (aio_open $uniq, O_RDONLY, 0) {
1161	$self->clear_unique_items;	1837	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	1838	$self->_load_objects ($uniq, 0);
1163	}	1839	}
1164	}	1840	}
1165		1841
		1842	Coro::cede;
1166	# now do the right thing for maps	1843	# now do the right thing for maps
1167	$self->link_multipart_objects;	1844	$self->link_multipart_objects;
1168
1169	if ($self->{path}->is_style_map) {
1170	$self->{deny_save} = 1;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;
1176	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	1845	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	1846	unless $self->difficulty;
		1847	Coro::cede;
		1848
		1849	unless ($self->{deny_activate}) {
		1850	$self->decay_objects;
		1851	$self->fix_auto_apply;
		1852	$self->update_buttons;
		1853	Coro::cede;
		1854	$self->set_darkness_map;
		1855	Coro::cede;
1179	$self->activate;	1856	$self->activate;
1180	}	1857	}
1181		1858
1182	$self->in_memory (cf::MAP_IN_MEMORY);	1859	$self->in_memory (cf::MAP_IN_MEMORY);
1183	}	1860	}
1184		1861
1185	sub load_map_sync {	1862	$self->post_load;
		1863	}
		1864
		1865	sub customise_for {
		1866	my ($self, $ob) = @_;
		1867
		1868	return find "~" . $ob->name . "/" . $self->{path}
		1869	if $self->per_player;
		1870
		1871	# return find "?party/" . $ob->name . "/" . $self->{path}
		1872	# if $self->per_party;
		1873
		1874	$self
		1875	}
		1876
		1877	# find and load all maps in the 3x3 area around a map
		1878	sub load_diag {
		1879	my ($map) = @_;
		1880
		1881	my @diag; # diagonal neighbours
		1882
		1883	for (0 .. 3) {
		1884	my $neigh = $map->tile_path ($_)
		1885	or next;
		1886	$neigh = find $neigh, $map
		1887	or next;
		1888	$neigh->load;
		1889
		1890	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1891	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1892	}
		1893
		1894	for (@diag) {
		1895	my $neigh = find @$_
		1896	or next;
		1897	$neigh->load;
		1898	}
		1899	}
		1900
		1901	sub find_sync {
1186	my ($path, $origin) = @_;	1902	my ($path, $origin) = @_;
1187		1903
1188	#warn "load_map_sync<$path, $origin>\n";#d#	1904	cf::sync_job { find $path, $origin }
		1905	}
1189		1906
1190	cf::sync_job {	1907	sub do_load_sync {
1191	my $map = cf::map::find_map $path, $origin	1908	my ($map) = @_;
1192	or return;	1909
		1910	cf::sync_job { $map->load };
		1911	}
		1912
		1913	our %MAP_PREFETCH;
		1914	our $MAP_PREFETCHER = undef;
		1915
		1916	sub find_async {
		1917	my ($path, $origin) = @_;
		1918
		1919	$path = normalise $path, $origin && $origin->{path};
		1920
		1921	if (my $map = $cf::MAP{$path}) {
		1922	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1923	}
		1924
		1925	undef $MAP_PREFETCH{$path};
		1926	$MAP_PREFETCHER ||= cf::async {
		1927	while (%MAP_PREFETCH) {
		1928	for my $path (keys %MAP_PREFETCH) {
		1929	if (my $map = find $path) {
1193	$map->load;	1930	$map->load;
1194	$map	1931	}
		1932
		1933	delete $MAP_PREFETCH{$path};
		1934	}
		1935	}
		1936	undef $MAP_PREFETCHER;
1195	}	1937	};
		1938	$MAP_PREFETCHER->prio (6);
		1939
		1940	()
1196	}	1941	}
1197		1942
1198	sub save {	1943	sub save {
1199	my ($self) = @_;	1944	my ($self) = @_;
1200		1945
1201	my $save = $self->{path}->save_path; utf8::encode $save;	1946	my $lock = cf::lock_acquire "map_data:" . $self->path;
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		1947
1204	$self->{last_save} = $cf::RUNTIME;	1948	$self->{last_save} = $cf::RUNTIME;
1205		1949
1206	return unless $self->dirty;	1950	return unless $self->dirty;
1207		1951
		1952	my $save = $self->save_path; utf8::encode $save;
		1953	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1954
1208	$self->{load_path} = $save;	1955	$self->{load_path} = $save;
1209		1956
1210	return if $self->{deny_save};	1957	return if $self->{deny_save};
1211		1958
1212	warn "saving map ", $self->path;	1959	local $self->{last_access} = $self->last_access;#d#
		1960
		1961	cf::async {
		1962	$_->contr->save for $self->players;
		1963	};
1213		1964
1214	if ($uniq) {	1965	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1966	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);	1967	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {	1968	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1969	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}	1970	}
1220	}	1971	}
1221		1972
1222	sub swap_out {	1973	sub swap_out {
1223	my ($self) = @_;	1974	my ($self) = @_;
		1975
		1976	# save first because save cedes
		1977	$self->save;
		1978
		1979	my $lock = cf::lock_acquire "map_data:" . $self->path;
1224		1980
1225	return if $self->players;	1981	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;	1982	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};	1983	return if $self->{deny_save};
1228		1984
1229	$self->save;
1230	$self->clear;	1985	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	1986	$self->in_memory (cf::MAP_SWAPPED);
1232	}	1987	}
1233		1988
		1989	sub reset_at {
		1990	my ($self) = @_;
		1991
		1992	# TODO: safety, remove and allow resettable per-player maps
		1993	return 1e99 if $self->{deny_reset};
		1994
		1995	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1996	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1997
		1998	$time + $to
		1999	}
		2000
1234	sub should_reset {	2001	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	2002	my ($self) = @_;
1251		2003
1252	utf8::encode (my $save = $self->{path}->save_path);	2004	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	2005	}
1256		2006
1257	sub reset {	2007	sub reset {
1258	my ($self) = @_;	2008	my ($self) = @_;
1259		2009
		2010	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2011
1260	return if $self->players;	2012	return if $self->players;
1261	return if $self->{path}{user_rel};#d#
1262		2013
1263	warn "resetting map ", $self->path;#d#	2014	warn "resetting map ", $self->path;
		2015
		2016	$self->in_memory (cf::MAP_SWAPPED);
		2017
		2018	# need to save uniques path
		2019	unless ($self->{deny_save}) {
		2020	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2021
		2022	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2023	if $uniq;
		2024	}
1264		2025
1265	delete $cf::MAP{$self->path};	2026	delete $cf::MAP{$self->path};
		2027
		2028	$self->clear;
1266		2029
1267	$_->clear_links_to ($self) for values %cf::MAP;	2030	$_->clear_links_to ($self) for values %cf::MAP;
1268		2031
1269	$self->unlink_save;	2032	$self->unlink_save;
1270	$self->destroy;	2033	$self->destroy;
1271	}	2034	}
1272		2035
1273	sub customise_for {	2036	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		2037
1276	if ($map->per_player) {	2038	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2039	my ($self) = @_;
		2040
		2041	delete $cf::MAP{$self->path};
		2042
		2043	$self->unlink_save;
		2044
		2045	bless $self, "cf::map";
		2046	delete $self->{deny_reset};
		2047	$self->{deny_save} = 1;
		2048	$self->reset_timeout (1);
		2049	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2050
		2051	$cf::MAP{$self->path} = $self;
		2052
		2053	$self->reset; # polite request, might not happen
		2054	}
		2055
		2056	=item $maps = cf::map::tmp_maps
		2057
		2058	Returns an arrayref with all map paths of currently instantiated and saved
		2059	maps. May block.
		2060
		2061	=cut
		2062
		2063	sub tmp_maps() {
1278	}	2064	[
1279		2065	map {
1280	$map	2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $TMPDIR or [] }
		2071	]
1281	}	2072	}
1282		2073
1283	sub emergency_save {	2074	=item $maps = cf::map::random_maps
1284	local $cf::FREEZE = 1;
1285		2075
1286	warn "enter emergency map save\n";	2076	Returns an arrayref with all map paths of currently instantiated and saved
		2077	random maps. May block.
1287		2078
1288	cf::sync_job {	2079	=cut
1289	warn "begin emergency map save\n";
1290	$_->save for values %cf::MAP;
1291	};
1292		2080
1293	warn "end emergency map save\n";	2081	sub random_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise "?random/$_"
		2087	: ()
		2088	} @{ aio_readdir $RANDOMDIR or [] }
		2089	]
		2090	}
		2091
		2092	=item cf::map::unique_maps
		2093
		2094	Returns an arrayref of paths of all shared maps that have
		2095	instantiated unique items. May block.
		2096
		2097	=cut
		2098
		2099	sub unique_maps() {
		2100	[
		2101	map {
		2102	utf8::decode $_;
		2103	/\.map$/
		2104	? normalise $_
		2105	: ()
		2106	} @{ aio_readdir $UNIQUEDIR or [] }
		2107	]
1294	}	2108	}
1295		2109
1296	package cf;	2110	package cf;
1297		2111
1298	=back	2112	=back
1299		2113
		2114	=head3 cf::object
		2115
		2116	=cut
		2117
		2118	package cf::object;
		2119
		2120	=over 4
		2121
		2122	=item $ob->inv_recursive
		2123
		2124	Returns the inventory of the object _and_ their inventories, recursively.
		2125
		2126	=cut
		2127
		2128	sub inv_recursive_;
		2129	sub inv_recursive_ {
		2130	map { $_, inv_recursive_ $_->inv } @_
		2131	}
		2132
		2133	sub inv_recursive {
		2134	inv_recursive_ inv $_[0]
		2135	}
		2136
		2137	package cf;
		2138
		2139	=back
1300		2140
1301	=head3 cf::object::player	2141	=head3 cf::object::player
1302		2142
1303	=over 4	2143	=over 4
1304		2144
…		…
1318		2158
1319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2159	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1320		2160
1321	if ($self->{record_replies}) {	2161	if ($self->{record_replies}) {
1322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2162	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2163
1323	} else {	2164	} else {
		2165	my $pl = $self->contr;
		2166
		2167	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2168	my $diag = $pl->{npc_dialog};
		2169	$diag->{pl}->ext_reply (
		2170	$diag->{id},
		2171	msgtype => "reply",
		2172	msg => $diag->{pl}->expand_cfpod ($msg),
		2173	add_topics => []
		2174	);
		2175
		2176	} else {
1324	$msg = $npc->name . " says: $msg" if $npc;	2177	$msg = $npc->name . " says: $msg" if $npc;
1325	$self->message ($msg, $flags);	2178	$self->message ($msg, $flags);
		2179	}
1326	}	2180	}
1327	}	2181	}
1328		2182
1329	=item $player_object->may ("access")	2183	=item $player_object->may ("access")
1330		2184
…		…
1340	(ref $cf::CFG{"may_$access"}	2194	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2195	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	2196	: $cf::CFG{"may_$access"})
1343	}	2197	}
1344		2198
		2199	=item $player_object->enter_link
		2200
		2201	Freezes the player and moves him/her to a special map (C<{link}>).
		2202
		2203	The player should be reasonably safe there for short amounts of time. You
		2204	I<MUST> call C<leave_link> as soon as possible, though.
		2205
		2206	Will never block.
		2207
		2208	=item $player_object->leave_link ($map, $x, $y)
		2209
		2210	Moves the player out of the special C<{link}> map onto the specified
		2211	map. If the map is not valid (or omitted), the player will be moved back
		2212	to the location he/she was before the call to C<enter_link>, or, if that
		2213	fails, to the emergency map position.
		2214
		2215	Might block.
		2216
		2217	=cut
		2218
		2219	sub link_map {
		2220	unless ($LINK_MAP) {
		2221	$LINK_MAP = cf::map::find "{link}"
		2222	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2223	$LINK_MAP->load;
		2224	}
		2225
		2226	$LINK_MAP
		2227	}
		2228
1345	sub cf::object::player::enter_link {	2229	sub cf::object::player::enter_link {
1346	my ($self) = @_;	2230	my ($self) = @_;
1347		2231
1348	return if $self->map == $LINK_MAP;
1349
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;
1352
1353	$self->enter_map ($LINK_MAP, 20, 20);
1354	$self->deactivate_recursive;	2232	$self->deactivate_recursive;
		2233
		2234	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2235
		2236	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2237	if $self->map && $self->map->{path} ne "{link}";
		2238
		2239	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1355	}	2240	}
1356		2241
1357	sub cf::object::player::leave_link {	2242	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	2243	my ($self, $map, $x, $y) = @_;
1359		2244
		2245	return unless $self->contr->active;
		2246
1360	my $link_pos = delete $self->{_link_pos};	2247	my $link_pos = delete $self->{_link_pos};
1361		2248
1362	unless ($map) {	2249	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	2250	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	2251	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	2252	$map = cf::map::find $map;
1368		2253
1369	unless ($map) {	2254	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	2255	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	2256	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	2257	or die "FATAL: cannot load emergency map\n";
1373	}	2258	}
1374	}	2259	}
1375		2260
1376	($x, $y) = (-1, -1)	2261	($x, $y) = (-1, -1)
…		…
1379	# use -1 or undef as default coordinates, not 0, 0	2264	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	2265	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	2266	if $x <=0 && $y <= 0;
1382		2267
1383	$map->load;	2268	$map->load;
		2269	$map->load_diag;
1384		2270
		2271	return unless $self->contr->active;
1385	$self->activate_recursive;	2272	$self->activate_recursive;
		2273
		2274	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1386	$self->enter_map ($map, $x, $y);	2275	$self->enter_map ($map, $x, $y);
1387	}	2276	}
1388		2277
1389	=item $player_object->goto_map ($map, $x, $y)	2278	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1390		2279
1391	=cut	2280	Moves the player to the given map-path and coordinates by first freezing
		2281	her, loading and preparing them map, calling the provided $check callback
		2282	that has to return the map if sucecssful, and then unfreezes the player on
		2283	the new (success) or old (failed) map position. In either case, $done will
		2284	be called at the end of this process.
1392		2285
		2286	=cut
		2287
		2288	our $GOTOGEN;
		2289
1393	sub cf::object::player::goto_map {	2290	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	2291	my ($self, $path, $x, $y, $check, $done) = @_;
		2292
		2293	# do generation counting so two concurrent goto's will be executed in-order
		2294	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1395		2295
1396	$self->enter_link;	2296	$self->enter_link;
1397		2297
1398	(Coro::async {	2298	(async {
1399	$path = new cf::path $path;	2299	my $map = eval {
1400
1401	my $map = cf::map::find_map $path->as_string;	2300	my $map = cf::map::find $path;
		2301
		2302	if ($map) {
1402	$map = $map->customise_for ($self) if $map;	2303	$map = $map->customise_for ($self);
		2304	$map = $check->($map) if $check && $map;
		2305	} else {
		2306	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2307	}
1403		2308
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	2309	$map
		2310	};
1406		2311
		2312	if ($@) {
		2313	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2314	LOG llevError | logBacktrace, Carp::longmess $@;
		2315	}
		2316
		2317	if ($gen == $self->{_goto_generation}) {
		2318	delete $self->{_goto_generation};
1407	$self->leave_link ($map, $x, $y);	2319	$self->leave_link ($map, $x, $y);
		2320	}
		2321
		2322	$done->() if $done;
1408	})->prio (1);	2323	})->prio (1);
1409	}	2324	}
1410		2325
1411	=item $player_object->enter_exit ($exit_object)	2326	=item $player_object->enter_exit ($exit_object)
1412		2327
…		…
1414		2329
1415	sub parse_random_map_params {	2330	sub parse_random_map_params {
1416	my ($spec) = @_;	2331	my ($spec) = @_;
1417		2332
1418	my $rmp = { # defaults	2333	my $rmp = { # defaults
1419	xsize => 10,	2334	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	2335	ysize => (cf::rndm 15, 40),
		2336	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2337	#layout => string,
1421	};	2338	};
1422		2339
1423	for (split /\n/, $spec) {	2340	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	2341	my ($k, $v) = split /\s+/, $_, 2;
1425		2342
…		…
1429	$rmp	2346	$rmp
1430	}	2347	}
1431		2348
1432	sub prepare_random_map {	2349	sub prepare_random_map {
1433	my ($exit) = @_;	2350	my ($exit) = @_;
		2351
		2352	my $guard = cf::lock_acquire "exit_prepare:$exit";
1434		2353
1435	# all this does is basically replace the /! path by	2354	# all this does is basically replace the /! path by
1436	# a new random map path (?random/...) with a seed	2355	# a new random map path (?random/...) with a seed
1437	# that depends on the exit object	2356	# that depends on the exit object
1438		2357
1439	my $rmp = parse_random_map_params $exit->msg;	2358	my $rmp = parse_random_map_params $exit->msg;
1440		2359
1441	if ($exit->map) {	2360	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	2361	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	2362	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	2363	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	2364	$rmp->{origin_y} = $exit->y;
1446	}	2365	}
1447		2366
1448	$rmp->{random_seed} ||= $exit->random_seed;	2367	$rmp->{random_seed} ||= $exit->random_seed;
1449		2368
1450	my $data = cf::to_json $rmp;	2369	my $data = cf::to_json $rmp;
1451	my $md5 = Digest::MD5::md5_hex $data;	2370	my $md5 = Digest::MD5::md5_hex $data;
		2371	my $meta = "$RANDOMDIR/$md5.meta";
1452		2372
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2373	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	2374	aio_write $fh, 0, (length $data), $data, 0;
		2375	undef $fh;
		2376	aio_rename "$meta~", $meta;
1455		2377
1456	$exit->slaying ("?random/$md5");	2378	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	2379	$exit->msg (undef);
1458	}	2380	}
1459	}	2381	}
…		…
1461	sub cf::object::player::enter_exit {	2383	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	2384	my ($self, $exit) = @_;
1463		2385
1464	return unless $self->type == cf::PLAYER;	2386	return unless $self->type == cf::PLAYER;
1465		2387
		2388	if ($exit->slaying eq "/!") {
		2389	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2390	# the problem is that $exit might not survive long enough
		2391	# so it needs to be done right now, right here
		2392	cf::sync_job { prepare_random_map $exit };
		2393	}
		2394
		2395	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2396	my $hp = $exit->stats->hp;
		2397	my $sp = $exit->stats->sp;
		2398
1466	$self->enter_link;	2399	$self->enter_link;
1467		2400
		2401	# if exit is damned, update players death & WoR home-position
		2402	$self->contr->savebed ($slaying, $hp, $sp)
		2403	if $exit->flag (FLAG_DAMNED);
		2404
1468	(Coro::async {	2405	(async {
		2406	$self->deactivate_recursive; # just to be sure
1469	unless (eval {	2407	unless (eval {
1470		2408	$self->goto ($slaying, $hp, $sp);
1471	prepare_random_map $exit
1472	if $exit->slaying eq "/!";
1473
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1476		2409
1477	1;	2410	1;
1478	}) {	2411	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	2412	$self->message ("Something went wrong deep within the crossfire server. "
1480	. "I'll try to bring you back to the map you were before. "	2413	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	2414	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2415	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2416
1484	warn "ERROR in enter_exit: $@";	2417	warn "ERROR in enter_exit: $@";
1485	$self->leave_link;	2418	$self->leave_link;
1486	}	2419	}
1487	})->prio (1);	2420	})->prio (1);
…		…
1500		2433
1501	sub cf::client::send_drawinfo {	2434	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2435	my ($self, $text, $flags) = @_;
1503		2436
1504	utf8::encode $text;	2437	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2438	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2439	}
1507		2440
		2441	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2442
		2443	Send a drawinfo or msg packet to the client, formatting the msg for the
		2444	client if neccessary. C<$type> should be a string identifying the type of
		2445	the message, with C<log> being the default. If C<$color> is negative, suppress
		2446	the message unless the client supports the msg packet.
		2447
		2448	=cut
		2449
		2450	sub cf::client::send_msg {
		2451	my ($self, $channel, $msg, $color, @extra) = @_;
		2452
		2453	$msg = $self->pl->expand_cfpod ($msg);
		2454
		2455	return unless @extra || length $msg;
		2456
		2457	$color &= ~cf::NDI_UNIQUE; # just in case...
		2458
		2459	if (ref $channel) {
		2460	# send meta info to client, if not yet sent
		2461	unless (exists $self->{channel}{$channel->{id}}) {
		2462	$self->{channel}{$channel->{id}} = $channel;
		2463	$self->ext_event (channel_info => %$channel);
		2464	}
		2465
		2466	$channel = $channel->{id};
		2467	}
		2468
		2469	if ($self->can_msg) {
		2470	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2471	} else {
		2472	# replace some tags by gcfclient-compatible ones
		2473	for ($msg) {
		2474	1 while
		2475	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2476	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2477	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2478	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2479	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2480	}
		2481
		2482	if ($color >= 0) {
		2483	if (0 && $msg =~ /\[/) {
		2484	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2485	} else {
		2486	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2487	$self->send_packet ("drawinfo $color $msg")
		2488	}
		2489	}
		2490	}
		2491	}
		2492
		2493	=item $client->ext_event ($type, %msg)
		2494
		2495	Sends an ext event to the client.
		2496
		2497	=cut
		2498
		2499	sub cf::client::ext_event($$%) {
		2500	my ($self, $type, %msg) = @_;
		2501
		2502	return unless $self->extcmd;
		2503
		2504	$msg{msgtype} = "event_$type";
		2505	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2506	}
1508		2507
1509	=item $success = $client->query ($flags, "text", \&cb)	2508	=item $success = $client->query ($flags, "text", \&cb)
1510		2509
1511	Queues a query to the client, calling the given callback with	2510	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2511	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1513	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2512	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1514		2513
1515	Queries can fail, so check the return code. Or don't, as queries will become	2514	Queries can fail, so check the return code. Or don't, as queries will
1516	reliable at some point in the future.	2515	become reliable at some point in the future.
1517		2516
1518	=cut	2517	=cut
1519		2518
1520	sub cf::client::query {	2519	sub cf::client::query {
1521	my ($self, $flags, $text, $cb) = @_;	2520	my ($self, $flags, $text, $cb) = @_;
…		…
1529	utf8::encode $text;	2528	utf8::encode $text;
1530	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2529	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1531		2530
1532	$self->send_packet ($self->{query_queue}[0][0])	2531	$self->send_packet ($self->{query_queue}[0][0])
1533	if @{ $self->{query_queue} } == 1;	2532	if @{ $self->{query_queue} } == 1;
		2533
		2534	1
1534	}	2535	}
1535		2536
1536	cf::client->attach (	2537	cf::client->attach (
		2538	on_connect => sub {
		2539	my ($ns) = @_;
		2540
		2541	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2542	},
1537	on_reply => sub {	2543	on_reply => sub {
1538	my ($ns, $msg) = @_;	2544	my ($ns, $msg) = @_;
1539		2545
1540	# this weird shuffling is so that direct followup queries	2546	# this weird shuffling is so that direct followup queries
1541	# get handled first	2547	# get handled first
1542	my $queue = delete $ns->{query_queue};	2548	my $queue = delete $ns->{query_queue}
		2549	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		2550
1544	(shift @$queue)->[1]->($msg);	2551	(shift @$queue)->[1]->($msg);
		2552	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		2553
1546	push @{ $ns->{query_queue} }, @$queue;	2554	push @{ $ns->{query_queue} }, @$queue;
1547		2555
1548	if (@{ $ns->{query_queue} } == @$queue) {	2556	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	2557	if (@$queue) {
…		…
1551	} else {	2559	} else {
1552	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2560	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1553	}	2561	}
1554	}	2562	}
1555	},	2563	},
		2564	on_exticmd => sub {
		2565	my ($ns, $buf) = @_;
		2566
		2567	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2568
		2569	if (ref $msg) {
		2570	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2571	if (my %reply = $cb->($ns, $msg)) {
		2572	$reply{msgid} = $msg->{msgid};
		2573	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2574	}
		2575	}
		2576	} else {
		2577	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2578	}
		2579
		2580	cf::override;
		2581	},
1556	);	2582	);
1557		2583
1558	=item $client->coro (\&cb)	2584	=item $client->async (\&cb)
1559		2585
1560	Create a new coroutine, running the specified callback. The coroutine will	2586	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	2587	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	2588	or loss of connection).
1563		2589
1564	=cut	2590	=cut
1565		2591
1566	sub cf::client::coro {	2592	sub cf::client::async {
1567	my ($self, $cb) = @_;	2593	my ($self, $cb) = @_;
1568		2594
1569	my $coro; $coro = async {	2595	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		2596
1576	$coro->on_destroy (sub {	2597	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	2598	delete $self->{_coro}{$coro+0};
1578	});	2599	});
1579		2600
…		…
1612		2633
1613	# here we export the classes and methods available to script code	2634	# here we export the classes and methods available to script code
1614		2635
1615	=pod	2636	=pod
1616		2637
1617	The following fucntions and emthods are available within a safe environment:	2638	The following functions and methods are available within a safe environment:
1618		2639
1619	cf::object contr pay_amount pay_player map	2640	cf::object
		2641	contr pay_amount pay_player map x y force_find force_add
		2642	insert remove
		2643
1620	cf::object::player player	2644	cf::object::player
1621	cf::player peaceful	2645	player
1622	cf::map trigger	2646
		2647	cf::player
		2648	peaceful
		2649
		2650	cf::map
		2651	trigger
1623		2652
1624	=cut	2653	=cut
1625		2654
1626	for (	2655	for (
1627	["cf::object" => qw(contr pay_amount pay_player map)],	2656	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2657	insert remove)],
1628	["cf::object::player" => qw(player)],	2658	["cf::object::player" => qw(player)],
1629	["cf::player" => qw(peaceful)],	2659	["cf::player" => qw(peaceful)],
1630	["cf::map" => qw(trigger)],	2660	["cf::map" => qw(trigger)],
1631	) {	2661	) {
1632	no strict 'refs';	2662	no strict 'refs';
…		…
1703	=back	2733	=back
1704		2734
1705	=cut	2735	=cut
1706		2736
1707	#############################################################################	2737	#############################################################################
		2738	# the server's init and main functions
1708		2739
1709	=head2 EXTENSION DATABASE SUPPORT	2740	sub load_facedata($) {
		2741	my ($path) = @_;
1710		2742
1711	Crossfire maintains a very simple database for extension use. It can	2743	warn "loading facedata from $path\n";
1712	currently store anything that can be serialised using Storable, which
1713	excludes objects.
1714		2744
1715	The parameter C<$family> should best start with the name of the extension	2745	my $facedata;
1716	using it, it should be unique.	2746	0 < aio_load $path, $facedata
		2747	or die "$path: $!";
1717		2748
1718	=over 4	2749	$facedata = Coro::Storable::thaw $facedata;
1719		2750
1720	=item $hashref = cf::db_get $family	2751	$facedata->{version} == 2
		2752	or cf::cleanup "$path: version mismatch, cannot proceed.";
1721		2753
1722	Return a hashref for use by the extension C<$family>, which can be
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725
1726	=item $value = cf::db_get $family => $key
1727
1728	Returns a single value from the database
1729
1730	=item cf::db_put $family => $hashref
1731
1732	Stores the given family hashref into the database. Updates are delayed, if
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1734
1735	=item cf::db_put $family => $key => $value
1736
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747
1748	=cut
1749
1750	our $DB;
1751
1752	{
1753	my $path = cf::localdir . "/database.pst";
1754
1755	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };
1758	}	2754	{
		2755	my $faces = $facedata->{faceinfo};
1759		2756
1760	my $pid;	2757	while (my ($face, $info) = each %$faces) {
		2758	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2759	cf::face::set_visibility $idx, $info->{visibility};
		2760	cf::face::set_magicmap $idx, $info->{magicmap};
		2761	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2762	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1761		2763
1762	sub db_save() {	2764	cf::cede_to_tick;
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});
1783
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}
1788
1789	sub db_get($;$) {
1790	@_ >= 2
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794
1795	sub db_put($$;$) {
1796	if (@_ >= 3) {
1797	$DB->{$_[0]}{$_[1]} = $_[2];
1798	} else {
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803
1804	cf::global->attach (
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	2765	}
1809	);
1810	}
1811		2766
1812	#############################################################################	2767	while (my ($face, $info) = each %$faces) {
1813	# the server's main()	2768	next unless $info->{smooth};
		2769	my $idx = cf::face::find $face
		2770	or next;
		2771	if (my $smooth = cf::face::find $info->{smooth}) {
		2772	cf::face::set_smooth $idx, $smooth;
		2773	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2774	} else {
		2775	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2776	}
		2777
		2778	cf::cede_to_tick;
		2779	}
		2780	}
		2781
		2782	{
		2783	my $anims = $facedata->{animinfo};
		2784
		2785	while (my ($anim, $info) = each %$anims) {
		2786	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2787	cf::cede_to_tick;
		2788	}
		2789
		2790	cf::anim::invalidate_all; # d'oh
		2791	}
		2792
		2793	{
		2794	# TODO: for gcfclient pleasure, we should give resources
		2795	# that gcfclient doesn't grok a >10000 face index.
		2796	my $res = $facedata->{resource};
		2797	my $enc = JSON::XS->new->utf8->canonical;
		2798
		2799	while (my ($name, $info) = each %$res) {
		2800	my $meta = $enc->encode ({
		2801	name => $name,
		2802	type => $info->{type},
		2803	copyright => $info->{copyright}, #TODO#
		2804	});
		2805
		2806	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2807
		2808	if ($name =~ /\.jpg$/) {
		2809	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2810	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2811	} else {
		2812	my $data = pack "(w/a*)*", $meta, $info->{data};
		2813	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2814
		2815	cf::face::set_type $idx, 1;
		2816	cf::face::set_data $idx, 0, $data, $chk;
		2817	}
		2818
		2819	cf::cede_to_tick;
		2820	}
		2821	}
		2822
		2823	1
		2824	}
		2825
		2826	sub reload_regions {
		2827	load_resource_file "$MAPDIR/regions"
		2828	or die "unable to load regions file\n";
		2829
		2830	for (cf::region::list) {
		2831	$_->{match} = qr/$_->{match}/
		2832	if exists $_->{match};
		2833	}
		2834	}
		2835
		2836	sub reload_facedata {
		2837	load_facedata "$DATADIR/facedata"
		2838	or die "unable to load facedata\n";
		2839	}
		2840
		2841	sub reload_archetypes {
		2842	load_resource_file "$DATADIR/archetypes"
		2843	or die "unable to load archetypes\n";
		2844	#d# NEED to laod twice to resolve forward references
		2845	# this really needs to be done in an extra post-pass
		2846	# (which needs to be synchronous, so solve it differently)
		2847	load_resource_file "$DATADIR/archetypes"
		2848	or die "unable to load archetypes\n";
		2849	}
		2850
		2851	sub reload_treasures {
		2852	load_resource_file "$DATADIR/treasures"
		2853	or die "unable to load treasurelists\n";
		2854	}
		2855
		2856	sub reload_resources {
		2857	warn "reloading resource files...\n";
		2858
		2859	reload_regions;
		2860	reload_facedata;
		2861	#reload_archetypes;#d#
		2862	reload_archetypes;
		2863	reload_treasures;
		2864
		2865	warn "finished reloading resource files\n";
		2866	}
		2867
		2868	sub init {
		2869	reload_resources;
		2870	}
1814		2871
1815	sub cfg_load {	2872	sub cfg_load {
1816	open my $fh, "<:utf8", cf::confdir . "/config"	2873	open my $fh, "<:utf8", "$CONFDIR/config"
1817	or return;	2874	or return;
1818		2875
1819	local $/;	2876	local $/;
1820	*CFG = YAML::Syck::Load <$fh>;	2877	*CFG = YAML::Syck::Load <$fh>;
		2878
		2879	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2880
		2881	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2882	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2883
		2884	if (exists $CFG{mlockall}) {
		2885	eval {
		2886	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2887	and die "WARNING: m(un)lockall failed: $!\n";
		2888	};
		2889	warn $@ if $@;
		2890	}
1821	}	2891	}
1822		2892
1823	sub main {	2893	sub main {
1824	# we must not ever block the main coroutine	2894	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	2895	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2896	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	2897	(async {
1828	Event::one_event;	2898	Event::one_event;
1829	})->();	2899	})->prio (Coro::PRIO_MAX);
1830	};	2900	};
1831		2901
1832	cfg_load;	2902	cfg_load;
1833	db_load;	2903	db_init;
1834	load_extensions;	2904	load_extensions;
		2905
		2906	$TICK_WATCHER->start;
1835	Event::loop;	2907	Event::loop;
1836	}	2908	}
1837		2909
1838	#############################################################################	2910	#############################################################################
1839	# initialisation	2911	# initialisation and cleanup
1840		2912
		2913	# install some emergency cleanup handlers
		2914	BEGIN {
		2915	for my $signal (qw(INT HUP TERM)) {
		2916	Event->signal (
		2917	reentrant => 0,
		2918	data => WF_AUTOCANCEL,
		2919	signal => $signal,
		2920	prio => 0,
		2921	cb => sub {
		2922	cf::cleanup "SIG$signal";
		2923	},
		2924	);
		2925	}
		2926	}
		2927
		2928	sub write_runtime {
		2929	my $runtime = "$LOCALDIR/runtime";
		2930
		2931	# first touch the runtime file to show we are still running:
		2932	# the fsync below can take a very very long time.
		2933
		2934	IO::AIO::aio_utime $runtime, undef, undef;
		2935
		2936	my $guard = cf::lock_acquire "write_runtime";
		2937
		2938	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2939	or return;
		2940
		2941	my $value = $cf::RUNTIME + 90 + 10;
		2942	# 10 is the runtime save interval, for a monotonic clock
		2943	# 60 allows for the watchdog to kill the server.
		2944
		2945	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2946	and return;
		2947
		2948	# always fsync - this file is important
		2949	aio_fsync $fh
		2950	and return;
		2951
		2952	# touch it again to show we are up-to-date
		2953	aio_utime $fh, undef, undef;
		2954
		2955	close $fh
		2956	or return;
		2957
		2958	aio_rename "$runtime~", $runtime
		2959	and return;
		2960
		2961	warn "runtime file written.\n";
		2962
		2963	1
		2964	}
		2965
		2966	sub emergency_save() {
		2967	my $freeze_guard = cf::freeze_mainloop;
		2968
		2969	warn "enter emergency perl save\n";
		2970
		2971	cf::sync_job {
		2972	# use a peculiar iteration method to avoid tripping on perl
		2973	# refcount bugs in for. also avoids problems with players
		2974	# and maps saved/destroyed asynchronously.
		2975	warn "begin emergency player save\n";
		2976	for my $login (keys %cf::PLAYER) {
		2977	my $pl = $cf::PLAYER{$login} or next;
		2978	$pl->valid or next;
		2979	$pl->save;
		2980	}
		2981	warn "end emergency player save\n";
		2982
		2983	warn "begin emergency map save\n";
		2984	for my $path (keys %cf::MAP) {
		2985	my $map = $cf::MAP{$path} or next;
		2986	$map->valid or next;
		2987	$map->save;
		2988	}
		2989	warn "end emergency map save\n";
		2990
		2991	warn "begin emergency database checkpoint\n";
		2992	BDB::db_env_txn_checkpoint $DB_ENV;
		2993	warn "end emergency database checkpoint\n";
		2994	};
		2995
		2996	warn "leave emergency perl save\n";
		2997	}
		2998
		2999	sub post_cleanup {
		3000	my ($make_core) = @_;
		3001
		3002	warn Carp::longmess "post_cleanup backtrace"
		3003	if $make_core;
		3004	}
		3005
1841	sub reload() {	3006	sub do_reload_perl() {
1842	# can/must only be called in main	3007	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	3008	if ($Coro::current != $Coro::main) {
1844	warn "can only reload from main coroutine\n";	3009	warn "can only reload from main coroutine";
1845	return;	3010	return;
1846	}	3011	}
1847		3012
1848	warn "reloading...";	3013	warn "reloading...";
1849		3014
1850	local $FREEZE = 1;	3015	warn "entering sync_job";
		3016
		3017	cf::sync_job {
		3018	cf::write_runtime; # external watchdog should not bark
1851	cf::emergency_save;	3019	cf::emergency_save;
		3020	cf::write_runtime; # external watchdog should not bark
1852		3021
1853	eval {	3022	warn "syncing database to disk";
		3023	BDB::db_env_txn_checkpoint $DB_ENV;
		3024
1854	# if anything goes wrong in here, we should simply crash as we already saved	3025	# if anything goes wrong in here, we should simply crash as we already saved
1855		3026
1856	# cancel all watchers	3027	warn "cancelling all WF_AUTOCANCEL watchers";
1857	for (Event::all_watchers) {	3028	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;	3029	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}	3030	}
1860		3031
		3032	warn "flushing outstanding aio requests";
		3033	for (;;) {
		3034	BDB::flush;
		3035	IO::AIO::flush;
		3036	Coro::cede;
		3037	last unless IO::AIO::nreqs || BDB::nreqs;
		3038	warn "iterate...";
		3039	}
		3040
		3041	++$RELOAD;
		3042
1861	# cancel all extension coros	3043	warn "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	3044	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	3045	%EXT_CORO = ();
1864		3046
1865	# unload all extensions	3047	warn "removing commands";
1866	for (@exts) {	3048	%COMMAND = ();
		3049
		3050	warn "removing ext/exti commands";
		3051	%EXTCMD = ();
		3052	%EXTICMD = ();
		3053
		3054	warn "unloading/nuking all extensions";
		3055	for my $pkg (@EXTS) {
1867	warn "unloading <$_>";	3056	warn "... unloading $pkg";
1868	unload_extension $_;	3057
		3058	if (my $cb = $pkg->can ("unload")) {
		3059	eval {
		3060	$cb->($pkg);
		3061	1
		3062	} or warn "$pkg unloaded, but with errors: $@";
1869	}	3063	}
1870		3064
		3065	warn "... nuking $pkg";
		3066	Symbol::delete_package $pkg;
		3067	}
		3068
1871	# unload all modules loaded from $LIBDIR	3069	warn "unloading all perl modules loaded from $LIBDIR";
1872	while (my ($k, $v) = each %INC) {	3070	while (my ($k, $v) = each %INC) {
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3071	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1874		3072
1875	warn "removing <$k>";	3073	warn "... unloading $k";
1876	delete $INC{$k};	3074	delete $INC{$k};
1877		3075
1878	$k =~ s/\.pm$//;	3076	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;	3077	$k =~ s/\//::/g;
1880		3078
…		…
1883	}	3081	}
1884		3082
1885	Symbol::delete_package $k;	3083	Symbol::delete_package $k;
1886	}	3084	}
1887		3085
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	3086	warn "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	3087	Symbol::delete_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3088	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		3089
1896	# remove register_script_function callbacks
1897	# TODO
1898
1899	# unload cf.pm "a bit"	3090	warn "unloading cf.pm \"a bit\"";
1900	delete $INC{"cf.pm"};	3091	delete $INC{"cf.pm"};
		3092	delete $INC{"cf/pod.pm"};
1901		3093
1902	# don't, removes xs symbols, too,	3094	# don't, removes xs symbols, too,
1903	# and global variables created in xs	3095	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	3096	#Symbol::delete_package __PACKAGE__;
1905		3097
1906	# reload cf.pm	3098	warn "unload completed, starting to reload now";
		3099
1907	warn "reloading cf.pm";	3100	warn "reloading cf.pm";
1908	require cf;	3101	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3102	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1910		3103
1911	# load config and database again	3104	warn "loading config and database again";
1912	cf::cfg_load;	3105	cf::cfg_load;
1913	cf::db_load;
1914		3106
1915	# load extensions
1916	warn "load extensions";	3107	warn "loading extensions";
1917	cf::load_extensions;	3108	cf::load_extensions;
1918		3109
1919	# reattach attachments to objects	3110	warn "reattaching attachments to objects/players";
1920	warn "reattach";	3111	_global_reattach; # objects, sockets
1921	_global_reattach;	3112	warn "reattaching attachments to maps";
1922	};	3113	reattach $_ for values %MAP;
		3114	warn "reattaching attachments to players";
		3115	reattach $_ for values %PLAYER;
1923		3116
1924	if ($@) {	3117	warn "leaving sync_job";
		3118
		3119	1
		3120	} or do {
1925	warn $@;	3121	warn $@;
1926	warn "error while reloading, exiting.";	3122	warn "error while reloading, exiting.";
1927	exit 1;	3123	exit 1;
1928	}	3124	};
1929		3125
1930	warn "reloaded successfully";	3126	warn "reloaded";
1931	};	3127	};
1932		3128
1933	#############################################################################	3129	our $RELOAD_WATCHER; # used only during reload
1934		3130
1935	unless ($LINK_MAP) {	3131	sub reload_perl() {
1936	$LINK_MAP = cf::map::new;	3132	# doing reload synchronously and two reloads happen back-to-back,
		3133	# coro crashes during coro_state_free->destroy here.
1937		3134
1938	$LINK_MAP->width (41);	3135	$RELOAD_WATCHER ||= Event->timer (
1939	$LINK_MAP->height (41);	3136	reentrant => 0,
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,	3137	after => 0,
		3138	data => WF_AUTOCANCEL,
1948	cb => sub {	3139	cb => sub {
1949	$_[0]->w->cancel;	3140	do_reload_perl;
1950		3141	undef $RELOAD_WATCHER;
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});	3142	},
1969		3143	);
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}	3144	}
1975
1976	register "<global>", __PACKAGE__;
1977		3145
1978	register_command "reload" => sub {	3146	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	3147	my ($who, $arg) = @_;
1980		3148
1981	if ($who->flag (FLAG_WIZ)) {	3149	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");
1983	reload;
1984	$who->message ("end of reload.");	3150	$who->message ("reloading server.");
		3151	async { reload_perl };
1985	}	3152	}
1986	};	3153	};
1987		3154
1988	unshift @INC, $LIBDIR;	3155	unshift @INC, $LIBDIR;
1989		3156
		3157	my $bug_warning = 0;
		3158
		3159	our @WAIT_FOR_TICK;
		3160	our @WAIT_FOR_TICK_BEGIN;
		3161
		3162	sub wait_for_tick {
		3163	return unless $TICK_WATCHER->is_active;
		3164	return if $Coro::current == $Coro::main;
		3165
		3166	my $signal = new Coro::Signal;
		3167	push @WAIT_FOR_TICK, $signal;
		3168	$signal->wait;
		3169	}
		3170
		3171	sub wait_for_tick_begin {
		3172	return unless $TICK_WATCHER->is_active;
		3173	return if $Coro::current == $Coro::main;
		3174
		3175	my $signal = new Coro::Signal;
		3176	push @WAIT_FOR_TICK_BEGIN, $signal;
		3177	$signal->wait;
		3178	}
		3179
		3180	my $min = 1e6;#d#
		3181	my $avg = 10;
1990	$TICK_WATCHER = Event->timer (	3182	$TICK_WATCHER = Event->timer (
1991	reentrant => 0,	3183	reentrant => 0,
		3184	parked => 1,
1992	prio => 0,	3185	prio => 0,
1993	at => $NEXT_TICK || $TICK,	3186	at => $NEXT_TICK || $TICK,
1994	data => WF_AUTOCANCEL,	3187	data => WF_AUTOCANCEL,
1995	cb => sub {	3188	cb => sub {
1996	unless ($FREEZE) {	3189	if ($Coro::current != $Coro::main) {
		3190	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3191	unless ++$bug_warning > 10;
		3192	return;
		3193	}
		3194
		3195	$NOW = $tick_start = Event::time;
		3196
1997	cf::server_tick; # one server iteration	3197	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;	3198
		3199	0 && sync_job {#d#
		3200	for(1..10) {
		3201	my $t = Event::time;
		3202	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3203	or die;
		3204
		3205	$map->width (50);
		3206	$map->height (50);
		3207	$map->alloc;
		3208	$map->_load_objects ("/tmp/x.map", 1);
		3209	my $t = Event::time - $t;
		3210
		3211	#next unless $t < 0.0013;#d#
		3212	if ($t < $min) {
		3213	$min = $t;
		3214	}
		3215	$avg = $avg * 0.99 + $t * 0.01;
		3216	}
		3217	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3218	exit 0;
		3219	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1999	}	3220	};
2000		3221
		3222	$RUNTIME += $TICK;
2001	$NEXT_TICK += $TICK;	3223	$NEXT_TICK += $TICK;
2002		3224
		3225	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3226	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3227	Coro::async_pool {
		3228	write_runtime
		3229	or warn "ERROR: unable to write runtime file: $!";
		3230	};
		3231	}
		3232
		3233	# my $AFTER = Event::time;
		3234	# warn $AFTER - $NOW;#d#
		3235
		3236	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3237	$sig->send;
		3238	}
		3239	while (my $sig = shift @WAIT_FOR_TICK) {
		3240	$sig->send;
		3241	}
		3242
		3243	$NOW = Event::time;
		3244
2003	# if we are delayed by four ticks or more, skip them all	3245	# if we are delayed by four ticks or more, skip them all
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3246	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2005		3247
2006	$TICK_WATCHER->at ($NEXT_TICK);	3248	$TICK_WATCHER->at ($NEXT_TICK);
2007	$TICK_WATCHER->start;	3249	$TICK_WATCHER->start;
		3250
		3251	$LOAD = ($NOW - $tick_start) / $TICK;
		3252	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3253
		3254	_post_tick;
		3255
		3256
2008	},	3257	},
2009	);	3258	);
2010		3259
		3260	{
2011	IO::AIO::max_poll_time $TICK * 0.2;	3261	BDB::max_poll_time $TICK * 0.1;
2012		3262	$BDB_POLL_WATCHER = Event->io (
2013	Event->io (	3263	reentrant => 0,
2014	fd => IO::AIO::poll_fileno,	3264	fd => BDB::poll_fileno,
2015	poll => 'r',	3265	poll => 'r',
2016	prio => 5,	3266	prio => 0,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,	3267	data => WF_AUTOCANCEL,
2023	after => 0,	3268	cb => \&BDB::poll_cb,
2024	interval => 10,	3269	);
2025	cb => sub {	3270	BDB::min_parallel 8;
2026	(Coro::unblock_sub {	3271
2027	write_runtime	3272	BDB::set_sync_prepare {
2028	or warn "ERROR: unable to write runtime file: $!";	3273	my $status;
		3274	my $current = $Coro::current;
		3275	(
		3276	sub {
		3277	$status = $!;
		3278	$current->ready; undef $current;
		3279	},
		3280	sub {
		3281	Coro::schedule while defined $current;
		3282	$! = $status;
		3283	},
		3284	)
		3285	};
		3286
		3287	unless ($DB_ENV) {
		3288	$DB_ENV = BDB::db_env_create;
		3289
		3290	cf::sync_job {
		3291	eval {
		3292	BDB::db_env_open
		3293	$DB_ENV,
		3294	$BDBDIR,
		3295	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3296	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3297	0666;
		3298
		3299	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3300
		3301	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3302	$DB_ENV->set_lk_detect;
		3303	};
		3304
		3305	cf::cleanup "db_env_open(db): $@" if $@;
2029	})->();	3306	};
2030	},	3307	}
2031	);	3308	}
		3309
		3310	{
		3311	IO::AIO::min_parallel 8;
		3312
		3313	undef $Coro::AIO::WATCHER;
		3314	IO::AIO::max_poll_time $TICK * 0.1;
		3315	$AIO_POLL_WATCHER = Event->io (
		3316	reentrant => 0,
		3317	data => WF_AUTOCANCEL,
		3318	fd => IO::AIO::poll_fileno,
		3319	poll => 'r',
		3320	prio => 6,
		3321	cb => \&IO::AIO::poll_cb,
		3322	);
		3323	}
		3324
		3325	my $_log_backtrace;
		3326
		3327	sub _log_backtrace {
		3328	my ($msg, @addr) = @_;
		3329
		3330	$msg =~ s/\n//;
		3331
		3332	# limit the # of concurrent backtraces
		3333	if ($_log_backtrace < 2) {
		3334	++$_log_backtrace;
		3335	async {
		3336	my @bt = fork_call {
		3337	@addr = map { sprintf "%x", $_ } @addr;
		3338	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3339	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3340	or die "addr2line: $!";
		3341
		3342	my @funcs;
		3343	my @res = <$fh>;
		3344	chomp for @res;
		3345	while (@res) {
		3346	my ($func, $line) = splice @res, 0, 2, ();
		3347	push @funcs, "[$func] $line";
		3348	}
		3349
		3350	@funcs
		3351	};
		3352
		3353	LOG llevInfo, "[ABT] $msg\n";
		3354	LOG llevInfo, "[ABT] $_\n" for @bt;
		3355	--$_log_backtrace;
		3356	};
		3357	} else {
		3358	LOG llevInfo, "[ABT] $msg\n";
		3359	LOG llevInfo, "[ABT] [suppressed]\n";
		3360	}
		3361	}
		3362
		3363	# load additional modules
		3364	use cf::pod;
		3365
		3366	END { cf::emergency_save }
2032		3367
2033	1	3368	1
2034		3369

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