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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.140 by root, Fri Jan 5 20:04:02 2007 UTC vs.
Revision 1.315 by root, Mon Jul 23 17:53:55 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 (Coro::PRIO_MAX); # 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 $RANDOM_MAPS = cf::localdir . "/random";	94
55	our %EXT_CORO;	95	# used to convert map paths into valid unix filenames by replacing / by ∕
		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 $tick_start; # for load detecting purposes
56		101
57	binmode STDOUT;	102	binmode STDOUT;
58	binmode STDERR;	103	binmode STDERR;
59		104
60	# read virtual server time, if available	105	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
65	}	110	}
66		111
67	mkdir cf::localdir;	112	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		114
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
76		118
77	#############################################################################	119	#############################################################################
78		120
79	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
80		122
…		…
87	=item $cf::RUNTIME	129	=item $cf::RUNTIME
88		130
89	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
90	every server tick.	132	every server tick.
91		133
92	=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
93		137
94	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		142
97	=item $cf::NOW	143	=item $cf::NOW
98		144
99	The time of the last (current) server tick.	145	The time of the last (current) server tick.
100		146
101	=item $cf::TICK	147	=item $cf::TICK
102		148
103	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.
104		160
105	=item %cf::CFG	161	=item %cf::CFG
106		162
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		177
110	=back	178	=back
111		179
112	=cut	180	=cut
113		181
114	BEGIN {	182	BEGIN {
115	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	184	my $msg = join "", @_;
117	utf8::encode $msg;
118		185
119	$msg .= "\n"	186	$msg .= "\n"
120	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
121		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
123	};	193	};
124	}	194	}
125		195
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		203
133	# 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
134	# within the Safe compartment.	205	# within the Safe compartment.
135	for my $pkg (qw(	206	for my $pkg (qw(
136	cf::global cf::attachable	207	cf::global cf::attachable
…		…
145		216
146	$Event::DIED = sub {	217	$Event::DIED = sub {
147	warn "error in event callback: @_";	218	warn "error in event callback: @_";
148	};	219	};
149		220
150	my %ext_pkg;	221	#############################################################################
151	my @exts;
152	my @hook;
153		222
154	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
155		224
156	=over 4	225	=over 4
157		226
158	=cut	227	=item dumpval $ref
159		228
160	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	}
161		249
162	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
163		251
164	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
165		253
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
174		255
175	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
176		257
177	=cut	258	=cut
178		259
179	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
181	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
183		264
184	=item cf::lock_wait $string	265	=item cf::lock_wait $string
185		266
186	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
187		268
…		…
193	returned.	274	returned.
194		275
195	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
197		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
198	=cut	283	=cut
199		284
200	our %LOCK;	285	our %LOCK;
201		286
202	sub lock_wait($) {	287	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
223	}	308	}
224	}	309	}
225		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
226	sub freeze_mainloop {	317	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
228		319
229	my $guard = Coro::guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
230	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
231	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
232	}	381	}
233		382
234	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
235		384
236	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		390
242	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
243		392
244	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
245		394
246	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
249		399
250	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
253	fast or be very important.	403	fast or be very important.
…		…
256		406
257	sub sync_job(&) {	407	sub sync_job(&) {
258	my ($job) = @_;	408	my ($job) = @_;
259		409
260	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
261	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
263		415
264	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
273	warn $@ if $@;	425	warn $@ if $@;
274	undef $busy;	426	undef $busy;
275	})->prio (Coro::PRIO_MAX);	427	})->prio (Coro::PRIO_MAX);
276		428
277	while ($busy) {	429	while ($busy) {
278	unless (Coro::cede) {	430	Coro::cede or Event::one_event;
279	Coro::nready ? Event::one_event 0 : Event::one_event;
280	Coro::cede_notself unless Coro::cede;
281	}	431	}
282	}	432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
283		439
284	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
285	} else {	441	} else {
286	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
287		443
…		…
289	}	445	}
290	}	446	}
291		447
292	=item $coro = cf::async_ext { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
293		449
294	Like async, but this coro is automcatially being canceled when the	450	Like async, but this coro is automatically being canceled when the
295	extension calling this is being unloaded.	451	extension calling this is being unloaded.
296		452
297	=cut	453	=cut
298		454
299	sub async_ext(&) {	455	sub async_ext(&) {
…		…
307	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
308		464
309	$coro	465	$coro
310	}	466	}
311		467
312	sub write_runtime {	468	=item fork_call { }, $args
313	my $runtime = cf::localdir . "/runtime";
314		469
315	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
316	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
317		474
318	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
319	(aio_write $fh, 0, (length $value), $value, 0) <= 0
320	and return;
321		476
322	aio_fsync $fh	477	sub _store_scalar {
323	and return;	478	open my $fh, ">", \my $buf
324		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
325	close $fh	481	close $fh;
326	or return;
327		482
328	aio_rename "$runtime~", $runtime	483	$buf
329	and return;	484	}
330		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
331	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
332	}	655	}
333		656
334	=back	657	=back
335		658
336	=cut	659	=cut
337
338	#############################################################################
339
340	package cf::path;
341
342	sub new {
343	my ($class, $path, $base) = @_;
344
345	$path = $path->as_string if ref $path;
346
347	my $self = bless { }, $class;
348
349	# {... are special paths that are not touched
350	# ?xxx/... are special absolute paths
351	# ?random/... random maps
352	# /! non-realised random map exit
353	# /... normal maps
354	# ~/... per-player maps without a specific player (DO NOT USE)
355	# ~user/... per-player map of a specific user
356
357	if ($path =~ /^{/) {
358	# fine as it is
359	} elsif ($path =~ s{^\?random/}{}) {
360	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
361	$self->{random} = cf::from_json $data;
362	} else {
363	if ($path =~ s{^~([^/]+)?}{}) {
364	$self->{user_rel} = 1;
365
366	if (defined $1) {
367	$self->{user} = $1;
368	} elsif ($base =~ m{^~([^/]+)/}) {
369	$self->{user} = $1;
370	} else {
371	warn "cannot resolve user-relative path without user <$path,$base>\n";
372	}
373	} elsif ($path =~ /^\//) {
374	# already absolute
375	} else {
376	$base =~ s{[^/]+/?$}{};
377	return $class->new ("$base/$path");
378	}
379
380	for ($path) {
381	redo if s{/\.?/}{/};
382	redo if s{/[^/]+/\.\./}{/};
383	}
384	}
385
386	$self->{path} = $path;
387
388	$self
389	}
390
391	# the name / primary key / in-game path
392	sub as_string {
393	my ($self) = @_;
394
395	$self->{user_rel} ? "~$self->{user}$self->{path}"
396	: $self->{random} ? "?random/$self->{path}"
397	: $self->{path}
398	}
399
400	# the displayed name, this is a one way mapping
401	sub visible_name {
402	my ($self) = @_;
403
404	# if (my $rmp = $self->{random}) {
405	# # todo: be more intelligent about this
406	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
407	# } else {
408	$self->as_string
409	# }
410	}
411
412	# escape the /'s in the path
413	sub _escaped_path {
414	# ∕ is U+2215
415	(my $path = $_[0]{path}) =~ s/\//∕/g;
416	$path
417	}
418
419	# the original (read-only) location
420	sub load_path {
421	my ($self) = @_;
422
423	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
424	}
425
426	# the temporary/swap location
427	sub save_path {
428	my ($self) = @_;
429
430	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
431	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
432	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
433	}
434
435	# the unique path, might be eq to save_path
436	sub uniq_path {
437	my ($self) = @_;
438
439	$self->{user_rel} || $self->{random}
440	? undef
441	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
442	}
443
444	# return random map parameters, or undef
445	sub random_map_params {
446	my ($self) = @_;
447
448	$self->{random}
449	}
450
451	# this is somewhat ugly, but style maps do need special treatment
452	sub is_style_map {
453	$_[0]{path} =~ m{^/styles/}
454	}
455
456	package cf;
457		660
458	#############################################################################	661	#############################################################################
459		662
460	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
461		664
…		…
463	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
464	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
465		668
466	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
467	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
468	crossfire+).	671	Crossfire TRT).
469		672
470	=over 4	673	=over 4
471		674
472	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
473		676
…		…
587	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
588	our @CB_MAP = ();	791	our @CB_MAP = ();
589		792
590	my %attachment;	793	my %attachment;
591		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
592	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
593	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
594		803
595	use sort 'stable';	804	use sort 'stable';
596		805
…		…
630	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
631		840
632	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
633	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
634	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
635	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
636		845
637	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
638	my $pkg = shift @arg;	847	my $pkg = shift @arg;
639		848
640	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
669	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
670	}	879	}
671		880
672	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
673	} else {	882	} else {
674	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
675	}	884	}
676		885
677	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
678	}	887	}
679		888
…		…
681	if (ref $_[0]) {	890	if (ref $_[0]) {
682	_object_attach @_;	891	_object_attach @_;
683	} else {	892	} else {
684	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
685	}	894	}
		895	_recalc_want;
686	};	896	};
687		897
688	# all those should be optimised	898	# all those should be optimised
689	sub cf::attachable::detach {	899	sub cf::attachable::detach {
690	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
693	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
694	reattach ($obj);	904	reattach ($obj);
695	} else {	905	} else {
696	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
697	}	907	}
		908	_recalc_want;
698	};	909	};
699		910
700	sub cf::attachable::attached {	911	sub cf::attachable::attached {
701	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
702		913
…		…
717	";	928	";
718	die if $@;	929	die if $@;
719	}	930	}
720		931
721	our $override;	932	our $override;
722	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
723		934
724	sub override {	935	sub override {
725	$override = 1;	936	$override = 1;
726	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
727	}	938	}
728		939
729	sub do_invoke {	940	sub do_invoke {
730	my $event = shift;	941	my $event = shift;
731	my $callbacks = shift;	942	my $callbacks = shift;
732		943
733	@invoke_results = ();	944	@INVOKE_RESULTS = ();
734		945
735	local $override;	946	local $override;
736		947
737	for (@$callbacks) {	948	for (@$callbacks) {
738	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
755		966
756	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
757		968
758	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
759	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
760	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
761		972
762	=back	973	=back
763		974
764	=cut	975	=cut
765		976
766	#############################################################################	977	#############################################################################
767	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
768		990
769	sub reattach {	991	sub reattach {
770	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
771	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		996
773	my $registry = $obj->registry;	997	my $registry = $obj->registry;
774		998
775	@$registry = ();	999	@$registry = ();
776		1000
…		…
823	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
824		1048
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
829	close $fh;	1053	close $fh;
830		1054
831	if (@$objs) {	1055	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
837	close $fh;	1061	close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
839	}	1063	}
840	} else {	1064	} else {
841	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
873	or return;	1097	or return;
874	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
875	}	1099	}
876		1100
877	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
879	return ($data, $av);	1103	return ($data, $av);
880	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
881		1111
882	#############################################################################	1112	#############################################################################
883	# command handling &c	1113	# command handling &c
884		1114
885	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1129	}
900		1130
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1132
903	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
904		1138
905	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
906	called.	1140	called.
907		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
908	=cut	1153	=cut
909		1154
910	sub register_extcmd {	1155	sub register_extcmd {
911	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
912		1157
913	my $caller = caller;
914	#warn "registering extcmd '$name' to '$caller'";
915
916	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
917	}	1165	}
918		1166
919	cf::player->attach (	1167	cf::player->attach (
920	on_command => sub {	1168	on_command => sub {
921	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
930	cf::override;	1178	cf::override;
931	},	1179	},
932	on_extcmd => sub {	1180	on_extcmd => sub {
933	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
934		1182
935	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
936		1184
937	if (ref $msg) {	1185	if (ref $msg) {
938	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1186	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
939	if (my %reply = $cb->[0]->($pl, $msg)) {	1187	if (my %reply = $cb->($pl, $msg)) {
940	$pl->ext_reply ($msg->{msgid}, %reply);	1188	$pl->ext_reply ($msg->{msgid}, %reply);
941	}	1189	}
942	}	1190	}
943	} else {	1191	} else {
944	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1192	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
946		1194
947	cf::override;	1195	cf::override;
948	},	1196	},
949	);	1197	);
950		1198
951	sub register {
952	my ($base, $pkg) = @_;
953
954	#TODO
955	}
956
957	sub load_extension {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
		1203	for my $path (<$LIBDIR/*.ext>) {
		1204	next unless -r $path;
		1205
		1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
		1263	}
		1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
		1269	};
		1270	}
		1271
		1272	#############################################################################
		1273
		1274	=back
		1275
		1276	=head2 CORE EXTENSIONS
		1277
		1278	Functions and methods that extend core crossfire objects.
		1279
		1280	=cut
		1281
		1282	package cf::player;
		1283
		1284	use Coro::AIO;
		1285
		1286	=head3 cf::player
		1287
		1288	=over 4
		1289
		1290	=item cf::player::find $login
		1291
		1292	Returns the given player object, loading it if necessary (might block).
		1293
		1294	=cut
		1295
		1296	sub playerdir($) {
		1297	"$PLAYERDIR/"
		1298	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1299	}
		1300
		1301	sub path($) {
		1302	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1303
		1304	(playerdir $login) . "/playerdata"
		1305	}
		1306
		1307	sub find_active($) {
		1308	$cf::PLAYER{$_[0]}
		1309	and $cf::PLAYER{$_[0]}->active
		1310	and $cf::PLAYER{$_[0]}
		1311	}
		1312
		1313	sub exists($) {
		1314	my ($login) = @_;
		1315
		1316	$cf::PLAYER{$login}
		1317	or cf::sync_job { !aio_stat path $login }
		1318	}
		1319
		1320	sub find($) {
		1321	return $cf::PLAYER{$_[0]} || do {
		1322	my $login = $_[0];
		1323
		1324	my $guard = cf::lock_acquire "user_find:$login";
		1325
		1326	$cf::PLAYER{$_[0]} || do {
		1327	# rename old playerfiles to new ones
		1328	#TODO: remove when no longer required
		1329	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1330	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1331	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1332	aio_unlink +(playerdir $login) . "/$login.pl";
		1333
		1334	my $pl = load_pl path $login
		1335	or return;
		1336	$cf::PLAYER{$login} = $pl
		1337	}
		1338	}
		1339	}
		1340
		1341	sub save($) {
		1342	my ($pl) = @_;
		1343
		1344	return if $pl->{deny_save};
		1345
		1346	my $path = path $pl;
		1347	my $guard = cf::lock_acquire "user_save:$path";
		1348
		1349	return if $pl->{deny_save};
		1350
		1351	aio_mkdir playerdir $pl, 0770;
		1352	$pl->{last_save} = $cf::RUNTIME;
		1353
		1354	$pl->save_pl ($path);
		1355	Coro::cede;
		1356	}
		1357
		1358	sub new($) {
		1359	my ($login) = @_;
		1360
		1361	my $self = create;
		1362
		1363	$self->ob->name ($login);
		1364	$self->{deny_save} = 1;
		1365
		1366	$cf::PLAYER{$login} = $self;
		1367
		1368	$self
		1369	}
		1370
		1371	=item $pl->quit_character
		1372
		1373	Nukes the player without looking back. If logged in, the connection will
		1374	be destroyed. May block for a long time.
		1375
		1376	=cut
		1377
		1378	sub quit_character {
		1379	my ($pl) = @_;
		1380
		1381	my $name = $pl->ob->name;
		1382
		1383	$pl->{deny_save} = 1;
		1384	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1385
		1386	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1387	$pl->deactivate;
		1388	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1389	$pl->ns->destroy if $pl->ns;
		1390
		1391	my $path = playerdir $pl;
		1392	my $temp = "$path~$cf::RUNTIME~deleting~";
		1393	aio_rename $path, $temp;
		1394	delete $cf::PLAYER{$pl->ob->name};
		1395	$pl->destroy;
		1396
		1397	my $prefix = qr<^~\Q$name\E/>;
		1398
		1399	# nuke player maps
		1400	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1401
		1402	IO::AIO::aio_rmtree $temp;
		1403	}
		1404
		1405	=item $pl->kick
		1406
		1407	Kicks a player out of the game. This destroys the connection.
		1408
		1409	=cut
		1410
		1411	sub kick {
		1412	my ($pl, $kicker) = @_;
		1413
		1414	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1415	$pl->killer ("kicked");
		1416	$pl->ns->destroy;
		1417	}
		1418
		1419	=item cf::player::list_logins
		1420
		1421	Returns am arrayref of all valid playernames in the system, can take a
		1422	while and may block, so not sync_job-capable, ever.
		1423
		1424	=cut
		1425
		1426	sub list_logins {
		1427	my $dirs = aio_readdir $PLAYERDIR
		1428	or return [];
		1429
		1430	my @logins;
		1431
		1432	for my $login (@$dirs) {
		1433	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1434	aio_read $fh, 0, 512, my $buf, 0 or next;
		1435	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1436
		1437	utf8::decode $login;
		1438	push @logins, $login;
		1439	}
		1440
		1441	\@logins
		1442	}
		1443
		1444	=item $player->maps
		1445
		1446	Returns an arrayref of map paths that are private for this
		1447	player. May block.
		1448
		1449	=cut
		1450
		1451	sub maps($) {
		1452	my ($pl) = @_;
		1453
		1454	$pl = ref $pl ? $pl->ob->name : $pl;
		1455
		1456	my $files = aio_readdir playerdir $pl
		1457	or return;
		1458
		1459	my @paths;
		1460
		1461	for (@$files) {
		1462	utf8::decode $_;
		1463	next if /\.(?:pl|pst)$/;
		1464	next unless /^$PATH_SEP/o;
		1465
		1466	push @paths, cf::map::normalise "~$pl/$_";
		1467	}
		1468
		1469	\@paths
		1470	}
		1471
		1472	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1473
		1474	Expand crossfire pod fragments into protocol xml.
		1475
		1476	=cut
		1477
		1478	sub expand_cfpod {
		1479	((my $self), (local $_)) = @_;
		1480
		1481	# escape & and <
		1482	s/&/&amp;/g;
		1483	s/(?<![BIUGH])</&lt;/g;
		1484
		1485	# this is buggy, it needs to properly take care of nested <'s
		1486
		1487	1 while
		1488	# replace B<>, I<>, U<> etc.
		1489	s/B<([^\>]*)>/<b>$1<\/b>/
		1490	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1491	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1492	# replace G<male|female> tags
		1493	|| s{G<([^>|]*)\|([^>]*)>}{
		1494	$self->gender ? $2 : $1
		1495	}ge
		1496	# replace H<hint text>
		1497	|| s{H<([^\>]*)>}
		1498	{
		1499	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1500	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1501	"")
		1502	[$self->{hintmode}]
		1503	}ge;
		1504
		1505	# create single paragraphs (very hackish)
		1506	s/(?<=\S)\n(?=\w)/ /g;
		1507
		1508	# compress some whitespace
		1509	s/\s+\n/\n/g; # ws line-ends
		1510	s/\n\n+/\n/g; # double lines
		1511	s/^\n+//; # beginning lines
		1512	s/\n+$//; # ending lines
		1513
		1514	$_
		1515	}
		1516
		1517	sub hintmode {
		1518	$_[0]{hintmode} = $_[1] if @_ > 1;
		1519	$_[0]{hintmode}
		1520	}
		1521
		1522	=item $player->ext_reply ($msgid, %msg)
		1523
		1524	Sends an ext reply to the player.
		1525
		1526	=cut
		1527
		1528	sub ext_reply($$%) {
		1529	my ($self, $id, %msg) = @_;
		1530
		1531	$msg{msgid} = $id;
		1532	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1533	}
		1534
		1535	=item $player->ext_event ($type, %msg)
		1536
		1537	Sends an ext event to the client.
		1538
		1539	=cut
		1540
		1541	sub ext_event($$%) {
		1542	my ($self, $type, %msg) = @_;
		1543
		1544	$self->ns->ext_event ($type, %msg);
		1545	}
		1546
		1547	=head3 cf::region
		1548
		1549	=over 4
		1550
		1551	=cut
		1552
		1553	package cf::region;
		1554
		1555	=item cf::region::find_by_path $path
		1556
		1557	Tries to decuce the likely region for a map knowing only its path.
		1558
		1559	=cut
		1560
		1561	sub find_by_path($) {
958	my ($path) = @_;	1562	my ($path) = @_;
959		1563
960	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1564	my ($match, $specificity);
961	my $base = $1;
962	my $pkg = $1;
963	$pkg =~ s/[^[:word:]]/_/g;
964	$pkg = "ext::$pkg";
965		1565
966	warn "loading '$path' into '$pkg'\n";	1566	for my $region (list) {
967		1567	if ($region->{match} && $path =~ $region->{match}) {
968	open my $fh, "<:utf8", $path	1568	($match, $specificity) = ($region, $region->specificity)
969	or die "$path: $!";	1569	if $region->specificity > $specificity;
970		1570	}
971	my $source =
972	"package $pkg; use strict; use utf8;\n"
973	. "#line 1 \"$path\"\n{\n"
974	. (do { local $/; <$fh> })
975	. "\n};\n1";
976
977	eval $source
978	or die $@ ? "$path: $@\n"
979	: "extension disabled.\n";
980
981	push @exts, $pkg;
982	$ext_pkg{$base} = $pkg;
983
984	# no strict 'refs';
985	# @{"$pkg\::ISA"} = ext::;
986
987	register $base, $pkg;
988	}
989
990	sub unload_extension {
991	my ($pkg) = @_;
992
993	warn "removing extension $pkg\n";
994
995	# remove hooks
996	#TODO
997	# for my $idx (0 .. $#PLUGIN_EVENT) {
998	# delete $hook[$idx]{$pkg};
999	# }	1571	}
1000		1572
1001	# remove commands	1573	$match
1002	for my $name (keys %COMMAND) {
1003	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1004
1005	if (@cb) {
1006	$COMMAND{$name} = \@cb;
1007	} else {
1008	delete $COMMAND{$name};
1009	}
1010	}
1011
1012	# remove extcmds
1013	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1014	delete $EXTCMD{$name};
1015	}
1016
1017	if (my $cb = $pkg->can ("unload")) {
1018	eval {
1019	$cb->($pkg);
1020	1
1021	} or warn "$pkg unloaded, but with errors: $@";
1022	}
1023
1024	Symbol::delete_package $pkg;
1025	}
1026
1027	sub load_extensions {
1028	for my $ext (<$LIBDIR/*.ext>) {
1029	next unless -r $ext;
1030	eval {
1031	load_extension $ext;
1032	1
1033	} or warn "$ext not loaded: $@";
1034	}
1035	}
1036
1037	#############################################################################
1038	# load/save/clean perl data associated with a map
1039
1040	*cf::mapsupport::on_clean = sub {
1041	my ($map) = @_;
1042
1043	my $path = $map->tmpname;
1044	defined $path or return;
1045
1046	unlink "$path.pst";
1047	};
1048
1049	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1050
1051	#############################################################################
1052	# load/save perl data associated with player->ob objects
1053
1054	sub all_objects(@) {
1055	@_, map all_objects ($_->inv), @_
1056	}
1057
1058	# TODO: compatibility cruft, remove when no longer needed
1059	cf::player->attach (
1060	on_load => sub {
1061	my ($pl, $path) = @_;
1062
1063	for my $o (all_objects $pl->ob) {
1064	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1065	$o->set_ob_key_value ("_perl_data");
1066
1067	%$o = %{ Storable::thaw pack "H*", $value };
1068	}
1069	}
1070	},
1071	);
1072
1073	#############################################################################
1074
1075	=head2 CORE EXTENSIONS
1076
1077	Functions and methods that extend core crossfire objects.
1078
1079	=head3 cf::player
1080
1081	=over 4
1082
1083	=item cf::player::exists $login
1084
1085	Returns true when the given account exists.
1086
1087	=cut
1088
1089	sub cf::player::exists($) {
1090	cf::player::find $_[0]
1091	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1092	}
1093
1094	=item $player->ext_reply ($msgid, $msgtype, %msg)
1095
1096	Sends an ext reply to the player.
1097
1098	=cut
1099
1100	sub cf::player::ext_reply($$$%) {
1101	my ($self, $id, %msg) = @_;
1102
1103	$msg{msgid} = $id;
1104
1105	$self->send ("ext " . to_json \%msg);
1106	}	1574	}
1107		1575
1108	=back	1576	=back
1109
1110		1577
1111	=head3 cf::map	1578	=head3 cf::map
1112		1579
1113	=over 4	1580	=over 4
1114		1581
…		…
1117	package cf::map;	1584	package cf::map;
1118		1585
1119	use Fcntl;	1586	use Fcntl;
1120	use Coro::AIO;	1587	use Coro::AIO;
1121		1588
		1589	use overload
		1590	'""' => \&as_string,
		1591	fallback => 1;
		1592
1122	our $MAX_RESET = 3600;	1593	our $MAX_RESET = 3600;
1123	our $DEFAULT_RESET = 3000;	1594	our $DEFAULT_RESET = 3000;
1124		1595
1125	sub generate_random_map {	1596	sub generate_random_map {
1126	my ($path, $rmp) = @_;	1597	my ($self, $rmp) = @_;
1127
1128	# mit "rum" bekleckern, nicht	1598	# mit "rum" bekleckern, nicht
1129	cf::map::_create_random_map	1599	$self->_create_random_map (
1130	$path,
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1600	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1601	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1602	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1134	$rmp->{exit_on_final_map},	1603	$rmp->{exit_on_final_map},
1135	$rmp->{xsize}, $rmp->{ysize},	1604	$rmp->{xsize}, $rmp->{ysize},
1136	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1605	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1137	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1606	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1138	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1607	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1139	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1608	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1140	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1609	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1141	(cf::region::find $rmp->{region})	1610	(cf::region::find $rmp->{region}), $rmp->{custom}
		1611	)
		1612	}
		1613
		1614	=item cf::map->register ($regex, $prio)
		1615
		1616	Register a handler for the map path matching the given regex at the
		1617	givne priority (higher is better, built-in handlers have priority 0, the
		1618	default).
		1619
		1620	=cut
		1621
		1622	sub register {
		1623	my (undef, $regex, $prio) = @_;
		1624	my $pkg = caller;
		1625
		1626	no strict;
		1627	push @{"$pkg\::ISA"}, __PACKAGE__;
		1628
		1629	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1630	}
		1631
		1632	# also paths starting with '/'
		1633	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1634
		1635	sub thawer_merge {
		1636	my ($self, $merge) = @_;
		1637
		1638	# we have to keep some variables in memory intact
		1639	local $self->{path};
		1640	local $self->{load_path};
		1641
		1642	$self->SUPER::thawer_merge ($merge);
		1643	}
		1644
		1645	sub normalise {
		1646	my ($path, $base) = @_;
		1647
		1648	$path = "$path"; # make sure its a string
		1649
		1650	$path =~ s/\.map$//;
		1651
		1652	# map plan:
		1653	#
		1654	# /! non-realised random map exit (special hack!)
		1655	# {... are special paths that are not being touched
		1656	# ?xxx/... are special absolute paths
		1657	# ?random/... random maps
		1658	# /... normal maps
		1659	# ~user/... per-player map of a specific user
		1660
		1661	$path =~ s/$PATH_SEP/\//go;
		1662
		1663	# treat it as relative path if it starts with
		1664	# something that looks reasonable
		1665	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1666	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1667
		1668	$base =~ s{[^/]+/?$}{};
		1669	$path = "$base/$path";
		1670	}
		1671
		1672	for ($path) {
		1673	redo if s{//}{/};
		1674	redo if s{/\.?/}{/};
		1675	redo if s{/[^/]+/\.\./}{/};
		1676	}
		1677
		1678	$path
		1679	}
		1680
		1681	sub new_from_path {
		1682	my (undef, $path, $base) = @_;
		1683
		1684	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1685
		1686	$path = normalise $path, $base;
		1687
		1688	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1689	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1690	my $self = bless cf::map::new, $pkg;
		1691	$self->{path} = $path; $self->path ($path);
		1692	$self->init; # pass $1 etc.
		1693	return $self;
		1694	}
		1695	}
		1696
		1697	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1698	()
		1699	}
		1700
		1701	sub init {
		1702	my ($self) = @_;
		1703
		1704	$self
		1705	}
		1706
		1707	sub as_string {
		1708	my ($self) = @_;
		1709
		1710	"$self->{path}"
		1711	}
		1712
		1713	# the displayed name, this is a one way mapping
		1714	sub visible_name {
		1715	&as_string
		1716	}
		1717
		1718	# the original (read-only) location
		1719	sub load_path {
		1720	my ($self) = @_;
		1721
		1722	"$MAPDIR/$self->{path}.map"
		1723	}
		1724
		1725	# the temporary/swap location
		1726	sub save_path {
		1727	my ($self) = @_;
		1728
		1729	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1730	"$TMPDIR/$path.map"
		1731	}
		1732
		1733	# the unique path, undef == no special unique path
		1734	sub uniq_path {
		1735	my ($self) = @_;
		1736
		1737	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1738	"$UNIQUEDIR/$path"
1142	}	1739	}
1143		1740
1144	# and all this just because we cannot iterate over	1741	# and all this just because we cannot iterate over
1145	# all maps in C++...	1742	# all maps in C++...
1146	sub change_all_map_light {	1743	sub change_all_map_light {
…		…
1148		1745
1149	$_->change_map_light ($change)	1746	$_->change_map_light ($change)
1150	for grep $_->outdoor, values %cf::MAP;	1747	for grep $_->outdoor, values %cf::MAP;
1151	}	1748	}
1152		1749
		1750	sub decay_objects {
		1751	my ($self) = @_;
		1752
		1753	return if $self->{deny_reset};
		1754
		1755	$self->do_decay_objects;
		1756	}
		1757
		1758	sub unlink_save {
		1759	my ($self) = @_;
		1760
		1761	utf8::encode (my $save = $self->save_path);
		1762	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1763	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1764	}
		1765
1153	sub try_load_header($) {	1766	sub load_header_from($) {
1154	my ($path) = @_;	1767	my ($self, $path) = @_;
1155		1768
1156	utf8::encode $path;	1769	utf8::encode $path;
1157	aio_open $path, O_RDONLY, 0	1770	#aio_open $path, O_RDONLY, 0
		1771	# or return;
		1772
		1773	$self->_load_header ($path)
1158	or return;	1774	or return;
1159		1775
1160	my $map = cf::map::new	1776	$self->{load_path} = $path;
		1777
		1778	1
		1779	}
		1780
		1781	sub load_header_orig {
		1782	my ($self) = @_;
		1783
		1784	$self->load_header_from ($self->load_path)
		1785	}
		1786
		1787	sub load_header_temp {
		1788	my ($self) = @_;
		1789
		1790	$self->load_header_from ($self->save_path)
		1791	}
		1792
		1793	sub prepare_temp {
		1794	my ($self) = @_;
		1795
		1796	$self->last_access ((delete $self->{last_access})
		1797	|| $cf::RUNTIME); #d#
		1798	# safety
		1799	$self->{instantiate_time} = $cf::RUNTIME
		1800	if $self->{instantiate_time} > $cf::RUNTIME;
		1801	}
		1802
		1803	sub prepare_orig {
		1804	my ($self) = @_;
		1805
		1806	$self->{load_original} = 1;
		1807	$self->{instantiate_time} = $cf::RUNTIME;
		1808	$self->last_access ($cf::RUNTIME);
		1809	$self->instantiate;
		1810	}
		1811
		1812	sub load_header {
		1813	my ($self) = @_;
		1814
		1815	if ($self->load_header_temp) {
		1816	$self->prepare_temp;
		1817	} else {
		1818	$self->load_header_orig
1161	or return;	1819	or return;
		1820	$self->prepare_orig;
		1821	}
1162		1822
1163	# for better error messages only, will be overwritten	1823	$self->{deny_reset} = 1
1164	$map->path ($path);	1824	if $self->no_reset;
1165		1825
1166	$map->load_header ($path)	1826	$self->default_region (cf::region::find_by_path $self->{path})
1167	or return;	1827	unless $self->default_region;
1168		1828
1169	$map->{load_path} = $path;	1829	1
1170
1171	$map
1172	}	1830	}
1173		1831
1174	sub find;	1832	sub find;
1175	sub find {	1833	sub find {
1176	my ($path, $origin) = @_;	1834	my ($path, $origin) = @_;
1177		1835
1178	#warn "find<$path,$origin>\n";#d#
1179
1180	$path = new cf::path $path, $origin && $origin->path;	1836	$path = normalise $path, $origin && $origin->path;
1181	my $key = $path->as_string;
1182		1837
1183	cf::lock_wait "map_find:$key";	1838	cf::lock_wait "map_find:$path";
1184		1839
1185	$cf::MAP{$key} || do {	1840	$cf::MAP{$path} || do {
1186	my $guard = cf::lock_acquire "map_find:$key";	1841	my $guard = cf::lock_acquire "map_find:$path";
1187		1842	my $map = new_from_path cf::map $path
1188	# do it the slow way
1189	my $map = try_load_header $path->save_path;
1190
1191	Coro::cede;
1192
1193	if ($map) {
1194	$map->last_access ((delete $map->{last_access})
1195	|| $cf::RUNTIME); #d#
1196	# safety
1197	$map->{instantiate_time} = $cf::RUNTIME
1198	if $map->{instantiate_time} > $cf::RUNTIME;
1199	} else {
1200	if (my $rmp = $path->random_map_params) {
1201	$map = generate_random_map $key, $rmp;
1202	} else {
1203	$map = try_load_header $path->load_path;
1204	}
1205
1206	$map or return;	1843	or return;
1207		1844
1208	$map->{load_original} = 1;
1209	$map->{instantiate_time} = $cf::RUNTIME;
1210	$map->last_access ($cf::RUNTIME);
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1845	$map->{last_save} = $cf::RUNTIME;
1220		1846
1221	Coro::cede;	1847	$map->load_header
		1848	or return;
1222		1849
1223	if ($map->should_reset) {	1850	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1851	# doing this can freeze the server in a sync job, obviously
		1852	#$cf::WAIT_FOR_TICK->wait;
1224	$map->reset;	1853	$map->reset;
1225	undef $guard;	1854	undef $guard;
1226	$map = find $path	1855	return find $path;
1227	or return;
1228	}	1856	}
1229		1857
1230	$cf::MAP{$key} = $map	1858	$cf::MAP{$path} = $map
1231	}	1859	}
1232	}	1860	}
		1861
		1862	sub pre_load { }
		1863	sub post_load { }
1233		1864
1234	sub load {	1865	sub load {
1235	my ($self) = @_;	1866	my ($self) = @_;
1236		1867
		1868	local $self->{deny_reset} = 1; # loading can take a long time
		1869
1237	my $path = $self->{path};	1870	my $path = $self->{path};
		1871
		1872	{
1238	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1873	my $guard = cf::lock_acquire "map_load:$path";
1239		1874
1240	return if $self->in_memory != cf::MAP_SWAPPED;	1875	return if $self->in_memory != cf::MAP_SWAPPED;
1241		1876
1242	$self->in_memory (cf::MAP_LOADING);	1877	$self->in_memory (cf::MAP_LOADING);
1243		1878
1244	$self->alloc;	1879	$self->alloc;
		1880
		1881	$self->pre_load;
		1882	Coro::cede;
		1883
1245	$self->load_objects ($self->{load_path}, 1)	1884	$self->_load_objects ($self->{load_path}, 1)
1246	or return;	1885	or return;
1247		1886
1248	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1887	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1249	if delete $self->{load_original};	1888	if delete $self->{load_original};
1250		1889
1251	if (my $uniq = $path->uniq_path) {	1890	if (my $uniq = $self->uniq_path) {
1252	utf8::encode $uniq;	1891	utf8::encode $uniq;
1253	if (aio_open $uniq, O_RDONLY, 0) {	1892	if (aio_open $uniq, O_RDONLY, 0) {
1254	$self->clear_unique_items;	1893	$self->clear_unique_items;
1255	$self->load_objects ($uniq, 0);	1894	$self->_load_objects ($uniq, 0);
1256	}	1895	}
1257	}	1896	}
1258		1897
1259	Coro::cede;	1898	Coro::cede;
1260
1261	# now do the right thing for maps	1899	# now do the right thing for maps
1262	$self->link_multipart_objects;	1900	$self->link_multipart_objects;
1263
1264	if ($self->{path}->is_style_map) {
1265	$self->{deny_save} = 1;
1266	$self->{deny_reset} = 1;
1267	} else {
1268	$self->fix_auto_apply;
1269	$self->decay_objects;
1270	$self->update_buttons;
1271	$self->set_darkness_map;
1272	$self->difficulty ($self->estimate_difficulty)	1901	$self->difficulty ($self->estimate_difficulty)
1273	unless $self->difficulty;	1902	unless $self->difficulty;
		1903	Coro::cede;
		1904
		1905	unless ($self->{deny_activate}) {
		1906	$self->decay_objects;
		1907	$self->fix_auto_apply;
		1908	$self->update_buttons;
		1909	Coro::cede;
		1910	$self->set_darkness_map;
		1911	Coro::cede;
1274	$self->activate;	1912	$self->activate;
1275	}	1913	}
1276		1914
1277	Coro::cede;
1278
1279	$self->in_memory (cf::MAP_IN_MEMORY);	1915	$self->in_memory (cf::MAP_IN_MEMORY);
		1916	}
		1917
		1918	$self->post_load;
		1919	}
		1920
		1921	sub customise_for {
		1922	my ($self, $ob) = @_;
		1923
		1924	return find "~" . $ob->name . "/" . $self->{path}
		1925	if $self->per_player;
		1926
		1927	# return find "?party/" . $ob->name . "/" . $self->{path}
		1928	# if $self->per_party;
		1929
		1930	$self
		1931	}
		1932
		1933	# find and load all maps in the 3x3 area around a map
		1934	sub load_diag {
		1935	my ($map) = @_;
		1936
		1937	my @diag; # diagonal neighbours
		1938
		1939	for (0 .. 3) {
		1940	my $neigh = $map->tile_path ($_)
		1941	or next;
		1942	$neigh = find $neigh, $map
		1943	or next;
		1944	$neigh->load;
		1945
		1946	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1947	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1948	}
		1949
		1950	for (@diag) {
		1951	my $neigh = find @$_
		1952	or next;
		1953	$neigh->load;
		1954	}
1280	}	1955	}
1281		1956
1282	sub find_sync {	1957	sub find_sync {
1283	my ($path, $origin) = @_;	1958	my ($path, $origin) = @_;
1284		1959
1285	cf::sync_job { cf::map::find $path, $origin }	1960	cf::sync_job { find $path, $origin }
1286	}	1961	}
1287		1962
1288	sub do_load_sync {	1963	sub do_load_sync {
1289	my ($map) = @_;	1964	my ($map) = @_;
1290		1965
1291	cf::sync_job { $map->load };	1966	cf::sync_job { $map->load };
1292	}	1967	}
1293		1968
		1969	our %MAP_PREFETCH;
		1970	our $MAP_PREFETCHER = undef;
		1971
		1972	sub find_async {
		1973	my ($path, $origin) = @_;
		1974
		1975	$path = normalise $path, $origin && $origin->{path};
		1976
		1977	if (my $map = $cf::MAP{$path}) {
		1978	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1979	}
		1980
		1981	undef $MAP_PREFETCH{$path};
		1982	$MAP_PREFETCHER ||= cf::async {
		1983	while (%MAP_PREFETCH) {
		1984	for my $path (keys %MAP_PREFETCH) {
		1985	if (my $map = find $path) {
		1986	$map->load;
		1987	}
		1988
		1989	delete $MAP_PREFETCH{$path};
		1990	}
		1991	}
		1992	undef $MAP_PREFETCHER;
		1993	};
		1994	$MAP_PREFETCHER->prio (6);
		1995
		1996	()
		1997	}
		1998
1294	sub save {	1999	sub save {
1295	my ($self) = @_;	2000	my ($self) = @_;
1296		2001
1297	my $lock = cf::lock_acquire "map_data:" . $self->path;	2002	my $lock = cf::lock_acquire "map_data:" . $self->path;
1298		2003
1299	$self->{last_save} = $cf::RUNTIME;	2004	$self->{last_save} = $cf::RUNTIME;
1300		2005
1301	return unless $self->dirty;	2006	return unless $self->dirty;
1302		2007
1303	my $save = $self->{path}->save_path; utf8::encode $save;	2008	my $save = $self->save_path; utf8::encode $save;
1304	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2009	my $uniq = $self->uniq_path; utf8::encode $uniq;
1305		2010
1306	$self->{load_path} = $save;	2011	$self->{load_path} = $save;
1307		2012
1308	return if $self->{deny_save};	2013	return if $self->{deny_save};
1309		2014
1310	local $self->{last_access} = $self->last_access;#d#	2015	local $self->{last_access} = $self->last_access;#d#
1311		2016
		2017	cf::async {
		2018	$_->contr->save for $self->players;
		2019	};
		2020
1312	if ($uniq) {	2021	if ($uniq) {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2022	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1314	$self->save_objects ($uniq, cf::IO_UNIQUES);	2023	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1315	} else {	2024	} else {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2025	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1317	}	2026	}
1318	}	2027	}
1319		2028
1320	sub swap_out {	2029	sub swap_out {
1321	my ($self) = @_;	2030	my ($self) = @_;
…		…
1335		2044
1336	sub reset_at {	2045	sub reset_at {
1337	my ($self) = @_;	2046	my ($self) = @_;
1338		2047
1339	# TODO: safety, remove and allow resettable per-player maps	2048	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2049	return 1e99 if $self->{deny_reset};
1342		2050
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2051	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2052	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2053
…		…
1350	my ($self) = @_;	2058	my ($self) = @_;
1351		2059
1352	$self->reset_at <= $cf::RUNTIME	2060	$self->reset_at <= $cf::RUNTIME
1353	}	2061	}
1354		2062
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2063	sub reset {
1377	my ($self) = @_;	2064	my ($self) = @_;
1378		2065
1379	my $lock = cf::lock_acquire "map_data:" . $self->path;	2066	my $lock = cf::lock_acquire "map_data:$self->{path}";
1380		2067
1381	return if $self->players;	2068	return if $self->players;
1382	return if $self->{path}{user_rel};#d#
1383		2069
1384	warn "resetting map ", $self->path;#d#	2070	warn "resetting map ", $self->path;
		2071
		2072	$self->in_memory (cf::MAP_SWAPPED);
		2073
		2074	# need to save uniques path
		2075	unless ($self->{deny_save}) {
		2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2077
		2078	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2079	if $uniq;
		2080	}
1385		2081
1386	delete $cf::MAP{$self->path};	2082	delete $cf::MAP{$self->path};
		2083
		2084	$self->clear;
1387		2085
1388	$_->clear_links_to ($self) for values %cf::MAP;	2086	$_->clear_links_to ($self) for values %cf::MAP;
1389		2087
1390	$self->unlink_save;	2088	$self->unlink_save;
1391	$self->destroy;	2089	$self->destroy;
…		…
1394	my $nuke_counter = "aaaa";	2092	my $nuke_counter = "aaaa";
1395		2093
1396	sub nuke {	2094	sub nuke {
1397	my ($self) = @_;	2095	my ($self) = @_;
1398		2096
		2097	delete $cf::MAP{$self->path};
		2098
		2099	$self->unlink_save;
		2100
		2101	bless $self, "cf::map";
		2102	delete $self->{deny_reset};
1399	$self->{deny_save} = 1;	2103	$self->{deny_save} = 1;
1400	$self->reset_timeout (1);	2104	$self->reset_timeout (1);
1401	$self->rename ("{nuke}/" . ($nuke_counter++));	2105	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2106
		2107	$cf::MAP{$self->path} = $self;
		2108
1402	$self->reset; # polite request, might not happen	2109	$self->reset; # polite request, might not happen
1403	}	2110	}
1404		2111
1405	sub customise_for {	2112	=item $maps = cf::map::tmp_maps
1406	my ($map, $ob) = @_;
1407		2113
1408	if ($map->per_player) {	2114	Returns an arrayref with all map paths of currently instantiated and saved
1409	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2115	maps. May block.
		2116
		2117	=cut
		2118
		2119	sub tmp_maps() {
1410	}	2120	[
1411		2121	map {
1412	$map	2122	utf8::decode $_;
		2123	/\.map$/
		2124	? normalise $_
		2125	: ()
		2126	} @{ aio_readdir $TMPDIR or [] }
		2127	]
1413	}	2128	}
1414		2129
1415	sub emergency_save {	2130	=item $maps = cf::map::random_maps
1416	my $freeze_guard = cf::freeze_mainloop;
1417		2131
1418	warn "enter emergency map save\n";	2132	Returns an arrayref with all map paths of currently instantiated and saved
		2133	random maps. May block.
1419		2134
1420	cf::sync_job {	2135	=cut
1421	warn "begin emergency map save\n";
1422	$_->save for values %cf::MAP;
1423	};
1424		2136
1425	warn "end emergency map save\n";	2137	sub random_maps() {
		2138	[
		2139	map {
		2140	utf8::decode $_;
		2141	/\.map$/
		2142	? normalise "?random/$_"
		2143	: ()
		2144	} @{ aio_readdir $RANDOMDIR or [] }
		2145	]
		2146	}
		2147
		2148	=item cf::map::unique_maps
		2149
		2150	Returns an arrayref of paths of all shared maps that have
		2151	instantiated unique items. May block.
		2152
		2153	=cut
		2154
		2155	sub unique_maps() {
		2156	[
		2157	map {
		2158	utf8::decode $_;
		2159	/\.map$/
		2160	? normalise $_
		2161	: ()
		2162	} @{ aio_readdir $UNIQUEDIR or [] }
		2163	]
1426	}	2164	}
1427		2165
1428	package cf;	2166	package cf;
1429		2167
1430	=back	2168	=back
1431		2169
		2170	=head3 cf::object
		2171
		2172	=cut
		2173
		2174	package cf::object;
		2175
		2176	=over 4
		2177
		2178	=item $ob->inv_recursive
		2179
		2180	Returns the inventory of the object _and_ their inventories, recursively.
		2181
		2182	=cut
		2183
		2184	sub inv_recursive_;
		2185	sub inv_recursive_ {
		2186	map { $_, inv_recursive_ $_->inv } @_
		2187	}
		2188
		2189	sub inv_recursive {
		2190	inv_recursive_ inv $_[0]
		2191	}
		2192
		2193	package cf;
		2194
		2195	=back
1432		2196
1433	=head3 cf::object::player	2197	=head3 cf::object::player
1434		2198
1435	=over 4	2199	=over 4
1436		2200
…		…
1450		2214
1451	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2215	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1452		2216
1453	if ($self->{record_replies}) {	2217	if ($self->{record_replies}) {
1454	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2218	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2219
1455	} else {	2220	} else {
		2221	my $pl = $self->contr;
		2222
		2223	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2224	my $diag = $pl->{npc_dialog};
		2225	$diag->{pl}->ext_reply (
		2226	$diag->{id},
		2227	msgtype => "reply",
		2228	msg => $diag->{pl}->expand_cfpod ($msg),
		2229	add_topics => []
		2230	);
		2231
		2232	} else {
1456	$msg = $npc->name . " says: $msg" if $npc;	2233	$msg = $npc->name . " says: $msg" if $npc;
1457	$self->message ($msg, $flags);	2234	$self->message ($msg, $flags);
		2235	}
1458	}	2236	}
1459	}	2237	}
1460		2238
1461	=item $player_object->may ("access")	2239	=item $player_object->may ("access")
1462		2240
…		…
1476		2254
1477	=item $player_object->enter_link	2255	=item $player_object->enter_link
1478		2256
1479	Freezes the player and moves him/her to a special map (C<{link}>).	2257	Freezes the player and moves him/her to a special map (C<{link}>).
1480		2258
1481	The player should be reaosnably safe there for short amounts of time. You	2259	The player should be reasonably safe there for short amounts of time. You
1482	I<MUST> call C<leave_link> as soon as possible, though.	2260	I<MUST> call C<leave_link> as soon as possible, though.
1483		2261
		2262	Will never block.
		2263
1484	=item $player_object->leave_link ($map, $x, $y)	2264	=item $player_object->leave_link ($map, $x, $y)
1485		2265
1486	Moves the player out of the specila link map onto the given map. If the	2266	Moves the player out of the special C<{link}> map onto the specified
1487	map is not valid (or omitted), the player will be moved back to the	2267	map. If the map is not valid (or omitted), the player will be moved back
1488	location he/she was before the call to C<enter_link>, or, if that fails,	2268	to the location he/she was before the call to C<enter_link>, or, if that
1489	to the emergency map position.	2269	fails, to the emergency map position.
1490		2270
1491	Might block.	2271	Might block.
1492		2272
1493	=cut	2273	=cut
		2274
		2275	sub link_map {
		2276	unless ($LINK_MAP) {
		2277	$LINK_MAP = cf::map::find "{link}"
		2278	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2279	$LINK_MAP->load;
		2280	}
		2281
		2282	$LINK_MAP
		2283	}
1494		2284
1495	sub cf::object::player::enter_link {	2285	sub cf::object::player::enter_link {
1496	my ($self) = @_;	2286	my ($self) = @_;
1497		2287
1498	$self->deactivate_recursive;	2288	$self->deactivate_recursive;
1499		2289
1500	return if $self->map == $LINK_MAP;	2290	return if UNIVERSAL::isa $self->map, "ext::map_link";
1501		2291
1502	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2292	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1503	if $self->map;	2293	if $self->map && $self->map->{path} ne "{link}";
1504		2294
1505	$self->enter_map ($LINK_MAP, 20, 20);	2295	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1506	}	2296	}
1507		2297
1508	sub cf::object::player::leave_link {	2298	sub cf::object::player::leave_link {
1509	my ($self, $map, $x, $y) = @_;	2299	my ($self, $map, $x, $y) = @_;
		2300
		2301	return unless $self->contr->active;
1510		2302
1511	my $link_pos = delete $self->{_link_pos};	2303	my $link_pos = delete $self->{_link_pos};
1512		2304
1513	unless ($map) {	2305	unless ($map) {
1514	# restore original map position	2306	# restore original map position
…		…
1528	# use -1 or undef as default coordinates, not 0, 0	2320	# use -1 or undef as default coordinates, not 0, 0
1529	($x, $y) = ($map->enter_x, $map->enter_y)	2321	($x, $y) = ($map->enter_x, $map->enter_y)
1530	if $x <=0 && $y <= 0;	2322	if $x <=0 && $y <= 0;
1531		2323
1532	$map->load;	2324	$map->load;
		2325	$map->load_diag;
1533		2326
		2327	return unless $self->contr->active;
1534	$self->activate_recursive;	2328	$self->activate_recursive;
		2329
		2330	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1535	$self->enter_map ($map, $x, $y);	2331	$self->enter_map ($map, $x, $y);
1536	}	2332	}
1537		2333
1538	cf::player->attach (	2334	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1539	on_logout => sub {
1540	my ($pl) = @_;
1541		2335
1542	# abort map switching before logout	2336	Moves the player to the given map-path and coordinates by first freezing
1543	if ($pl->ob->{_link_pos}) {	2337	her, loading and preparing them map, calling the provided $check callback
1544	cf::sync_job {	2338	that has to return the map if sucecssful, and then unfreezes the player on
1545	$pl->ob->leave_link	2339	the new (success) or old (failed) map position. In either case, $done will
1546	};	2340	be called at the end of this process.
1547	}
1548	},
1549	on_login => sub {
1550	my ($pl) = @_;
1551		2341
1552	# try to abort aborted map switching on player login :)
1553	# should happen only on crashes
1554	if ($pl->ob->{_link_pos}) {
1555
1556	$pl->ob->enter_link;
1557	(async {
1558	# we need this sleep as the login has a concurrent enter_exit running
1559	# and this sleep increases chances of the player not ending up in scorn
1560	$pl->ob->reply (undef,
1561	"There was an internal problem at your last logout, "
1562	. "the server will try to bring you to your intended destination in a second.",
1563	cf::NDI_RED);
1564	Coro::Timer::sleep 1;
1565	$pl->ob->leave_link;
1566	})->prio (2);
1567	}
1568	},
1569	);
1570
1571	=item $player_object->goto ($path, $x, $y)
1572
1573	=cut	2342	=cut
		2343
		2344	our $GOTOGEN;
1574		2345
1575	sub cf::object::player::goto {	2346	sub cf::object::player::goto {
1576	my ($self, $path, $x, $y) = @_;	2347	my ($self, $path, $x, $y, $check, $done) = @_;
		2348
		2349	# do generation counting so two concurrent goto's will be executed in-order
		2350	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1577		2351
1578	$self->enter_link;	2352	$self->enter_link;
1579		2353
1580	(async {	2354	(async {
1581	$path = new cf::path $path;	2355	my $map = eval {
1582
1583	my $map = cf::map::find $path->as_string;	2356	my $map = cf::map::find $path;
		2357
		2358	if ($map) {
1584	$map = $map->customise_for ($self) if $map;	2359	$map = $map->customise_for ($self);
1585		2360	$map = $check->($map) if $check && $map;
1586	# warn "entering ", $map->path, " at ($x, $y)\n"	2361	} else {
1587	# if $map;
1588
1589	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2362	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2363	}
1590		2364
		2365	$map
		2366	};
		2367
		2368	if ($@) {
		2369	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2370	LOG llevError | logBacktrace, Carp::longmess $@;
		2371	}
		2372
		2373	if ($gen == $self->{_goto_generation}) {
		2374	delete $self->{_goto_generation};
1591	$self->leave_link ($map, $x, $y);	2375	$self->leave_link ($map, $x, $y);
		2376	}
		2377
		2378	$done->() if $done;
1592	})->prio (1);	2379	})->prio (1);
1593	}	2380	}
1594		2381
1595	=item $player_object->enter_exit ($exit_object)	2382	=item $player_object->enter_exit ($exit_object)
1596		2383
…		…
1598		2385
1599	sub parse_random_map_params {	2386	sub parse_random_map_params {
1600	my ($spec) = @_;	2387	my ($spec) = @_;
1601		2388
1602	my $rmp = { # defaults	2389	my $rmp = { # defaults
1603	xsize => 10,	2390	xsize => (cf::rndm 15, 40),
1604	ysize => 10,	2391	ysize => (cf::rndm 15, 40),
		2392	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2393	#layout => string,
1605	};	2394	};
1606		2395
1607	for (split /\n/, $spec) {	2396	for (split /\n/, $spec) {
1608	my ($k, $v) = split /\s+/, $_, 2;	2397	my ($k, $v) = split /\s+/, $_, 2;
1609		2398
…		…
1613	$rmp	2402	$rmp
1614	}	2403	}
1615		2404
1616	sub prepare_random_map {	2405	sub prepare_random_map {
1617	my ($exit) = @_;	2406	my ($exit) = @_;
		2407
		2408	my $guard = cf::lock_acquire "exit_prepare:$exit";
1618		2409
1619	# all this does is basically replace the /! path by	2410	# all this does is basically replace the /! path by
1620	# a new random map path (?random/...) with a seed	2411	# a new random map path (?random/...) with a seed
1621	# that depends on the exit object	2412	# that depends on the exit object
1622		2413
1623	my $rmp = parse_random_map_params $exit->msg;	2414	my $rmp = parse_random_map_params $exit->msg;
1624		2415
1625	if ($exit->map) {	2416	if ($exit->map) {
1626	$rmp->{region} = $exit->map->region_name;	2417	$rmp->{region} = $exit->region->name;
1627	$rmp->{origin_map} = $exit->map->path;	2418	$rmp->{origin_map} = $exit->map->path;
1628	$rmp->{origin_x} = $exit->x;	2419	$rmp->{origin_x} = $exit->x;
1629	$rmp->{origin_y} = $exit->y;	2420	$rmp->{origin_y} = $exit->y;
1630	}	2421	}
1631		2422
1632	$rmp->{random_seed} ||= $exit->random_seed;	2423	$rmp->{random_seed} ||= $exit->random_seed;
1633		2424
1634	my $data = cf::to_json $rmp;	2425	my $data = cf::to_json $rmp;
1635	my $md5 = Digest::MD5::md5_hex $data;	2426	my $md5 = Digest::MD5::md5_hex $data;
		2427	my $meta = "$RANDOMDIR/$md5.meta";
1636		2428
1637	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2429	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1638	aio_write $fh, 0, (length $data), $data, 0;	2430	aio_write $fh, 0, (length $data), $data, 0;
		2431	undef $fh;
		2432	aio_rename "$meta~", $meta;
1639		2433
1640	$exit->slaying ("?random/$md5");	2434	$exit->slaying ("?random/$md5");
1641	$exit->msg (undef);	2435	$exit->msg (undef);
1642	}	2436	}
1643	}	2437	}
…		…
1645	sub cf::object::player::enter_exit {	2439	sub cf::object::player::enter_exit {
1646	my ($self, $exit) = @_;	2440	my ($self, $exit) = @_;
1647		2441
1648	return unless $self->type == cf::PLAYER;	2442	return unless $self->type == cf::PLAYER;
1649		2443
		2444	if ($exit->slaying eq "/!") {
		2445	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2446	# the problem is that $exit might not survive long enough
		2447	# so it needs to be done right now, right here
		2448	cf::sync_job { prepare_random_map $exit };
		2449	}
		2450
		2451	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2452	my $hp = $exit->stats->hp;
		2453	my $sp = $exit->stats->sp;
		2454
1650	$self->enter_link;	2455	$self->enter_link;
		2456
		2457	# if exit is damned, update players death & WoR home-position
		2458	$self->contr->savebed ($slaying, $hp, $sp)
		2459	if $exit->flag (FLAG_DAMNED);
1651		2460
1652	(async {	2461	(async {
1653	$self->deactivate_recursive; # just to be sure	2462	$self->deactivate_recursive; # just to be sure
1654	unless (eval {	2463	unless (eval {
1655	prepare_random_map $exit	2464	$self->goto ($slaying, $hp, $sp);
1656	if $exit->slaying eq "/!";
1657
1658	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1659	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1660		2465
1661	1;	2466	1;
1662	}) {	2467	}) {
1663	$self->message ("Something went wrong deep within the crossfire server. "	2468	$self->message ("Something went wrong deep within the crossfire server. "
1664	. "I'll try to bring you back to the map you were before. "	2469	. "I'll try to bring you back to the map you were before. "
1665	. "Please report this to the dungeon master",	2470	. "Please report this to the dungeon master!",
1666	cf::NDI_UNIQUE | cf::NDI_RED);	2471	cf::NDI_UNIQUE | cf::NDI_RED);
1667		2472
1668	warn "ERROR in enter_exit: $@";	2473	warn "ERROR in enter_exit: $@";
1669	$self->leave_link;	2474	$self->leave_link;
1670	}	2475	}
1671	})->prio (1);	2476	})->prio (1);
…		…
1684		2489
1685	sub cf::client::send_drawinfo {	2490	sub cf::client::send_drawinfo {
1686	my ($self, $text, $flags) = @_;	2491	my ($self, $text, $flags) = @_;
1687		2492
1688	utf8::encode $text;	2493	utf8::encode $text;
1689	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2494	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1690	}	2495	}
1691		2496
		2497	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2498
		2499	Send a drawinfo or msg packet to the client, formatting the msg for the
		2500	client if neccessary. C<$type> should be a string identifying the type of
		2501	the message, with C<log> being the default. If C<$color> is negative, suppress
		2502	the message unless the client supports the msg packet.
		2503
		2504	=cut
		2505
		2506	sub cf::client::send_msg {
		2507	my ($self, $channel, $msg, $color, @extra) = @_;
		2508
		2509	$msg = $self->pl->expand_cfpod ($msg);
		2510
		2511	$color &= ~cf::NDI_UNIQUE; # just in case...
		2512
		2513	if (ref $channel) {
		2514	# send meta info to client, if not yet sent
		2515	unless (exists $self->{channel}{$channel->{id}}) {
		2516	$self->{channel}{$channel->{id}} = $channel;
		2517	$self->ext_event (channel_info => %$channel);
		2518	}
		2519
		2520	$channel = $channel->{id};
		2521	}
		2522
		2523	return unless @extra || length $msg;
		2524
		2525	if ($self->can_msg) {
		2526	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2527	} else {
		2528	# replace some tags by gcfclient-compatible ones
		2529	for ($msg) {
		2530	1 while
		2531	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2532	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2533	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2534	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2535	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2536	}
		2537
		2538	if ($color >= 0) {
		2539	if (0 && $msg =~ /\[/) {
		2540	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2541	} else {
		2542	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2543	$self->send_packet ("drawinfo $color $msg")
		2544	}
		2545	}
		2546	}
		2547	}
		2548
		2549	=item $client->ext_event ($type, %msg)
		2550
		2551	Sends an ext event to the client.
		2552
		2553	=cut
		2554
		2555	sub cf::client::ext_event($$%) {
		2556	my ($self, $type, %msg) = @_;
		2557
		2558	return unless $self->extcmd;
		2559
		2560	$msg{msgtype} = "event_$type";
		2561	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2562	}
1692		2563
1693	=item $success = $client->query ($flags, "text", \&cb)	2564	=item $success = $client->query ($flags, "text", \&cb)
1694		2565
1695	Queues a query to the client, calling the given callback with	2566	Queues a query to the client, calling the given callback with
1696	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2567	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1697	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2568	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1698		2569
1699	Queries can fail, so check the return code. Or don't, as queries will become	2570	Queries can fail, so check the return code. Or don't, as queries will
1700	reliable at some point in the future.	2571	become reliable at some point in the future.
1701		2572
1702	=cut	2573	=cut
1703		2574
1704	sub cf::client::query {	2575	sub cf::client::query {
1705	my ($self, $flags, $text, $cb) = @_;	2576	my ($self, $flags, $text, $cb) = @_;
…		…
1713	utf8::encode $text;	2584	utf8::encode $text;
1714	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2585	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1715		2586
1716	$self->send_packet ($self->{query_queue}[0][0])	2587	$self->send_packet ($self->{query_queue}[0][0])
1717	if @{ $self->{query_queue} } == 1;	2588	if @{ $self->{query_queue} } == 1;
		2589
		2590	1
1718	}	2591	}
1719		2592
1720	cf::client->attach (	2593	cf::client->attach (
		2594	on_connect => sub {
		2595	my ($ns) = @_;
		2596
		2597	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2598	},
1721	on_reply => sub {	2599	on_reply => sub {
1722	my ($ns, $msg) = @_;	2600	my ($ns, $msg) = @_;
1723		2601
1724	# this weird shuffling is so that direct followup queries	2602	# this weird shuffling is so that direct followup queries
1725	# get handled first	2603	# get handled first
1726	my $queue = delete $ns->{query_queue}	2604	my $queue = delete $ns->{query_queue}
1727	or return; # be conservative, not sure how that can happen, but we saw a crash here	2605	or return; # be conservative, not sure how that can happen, but we saw a crash here
1728		2606
1729	(shift @$queue)->[1]->($msg);	2607	(shift @$queue)->[1]->($msg);
		2608	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1730		2609
1731	push @{ $ns->{query_queue} }, @$queue;	2610	push @{ $ns->{query_queue} }, @$queue;
1732		2611
1733	if (@{ $ns->{query_queue} } == @$queue) {	2612	if (@{ $ns->{query_queue} } == @$queue) {
1734	if (@$queue) {	2613	if (@$queue) {
…		…
1736	} else {	2615	} else {
1737	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2616	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1738	}	2617	}
1739	}	2618	}
1740	},	2619	},
		2620	on_exticmd => sub {
		2621	my ($ns, $buf) = @_;
		2622
		2623	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2624
		2625	if (ref $msg) {
		2626	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2627	if (my %reply = $cb->($ns, $msg)) {
		2628	$reply{msgid} = $msg->{msgid};
		2629	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2630	}
		2631	}
		2632	} else {
		2633	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2634	}
		2635
		2636	cf::override;
		2637	},
1741	);	2638	);
1742		2639
1743	=item $client->async (\&cb)	2640	=item $client->async (\&cb)
1744		2641
1745	Create a new coroutine, running the specified callback. The coroutine will	2642	Create a new coroutine, running the specified callback. The coroutine will
…		…
1792		2689
1793	# here we export the classes and methods available to script code	2690	# here we export the classes and methods available to script code
1794		2691
1795	=pod	2692	=pod
1796		2693
1797	The following fucntions and emthods are available within a safe environment:	2694	The following functions and methods are available within a safe environment:
1798		2695
1799	cf::object contr pay_amount pay_player map	2696	cf::object
		2697	contr pay_amount pay_player map x y force_find force_add
		2698	insert remove
		2699
1800	cf::object::player player	2700	cf::object::player
1801	cf::player peaceful	2701	player
1802	cf::map trigger	2702
		2703	cf::player
		2704	peaceful
		2705
		2706	cf::map
		2707	trigger
1803		2708
1804	=cut	2709	=cut
1805		2710
1806	for (	2711	for (
1807	["cf::object" => qw(contr pay_amount pay_player map)],	2712	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2713	insert remove)],
1808	["cf::object::player" => qw(player)],	2714	["cf::object::player" => qw(player)],
1809	["cf::player" => qw(peaceful)],	2715	["cf::player" => qw(peaceful)],
1810	["cf::map" => qw(trigger)],	2716	["cf::map" => qw(trigger)],
1811	) {	2717	) {
1812	no strict 'refs';	2718	no strict 'refs';
…		…
1883	=back	2789	=back
1884		2790
1885	=cut	2791	=cut
1886		2792
1887	#############################################################################	2793	#############################################################################
		2794	# the server's init and main functions
1888		2795
1889	=head2 EXTENSION DATABASE SUPPORT	2796	sub load_facedata($) {
		2797	my ($path) = @_;
1890		2798
1891	Crossfire maintains a very simple database for extension use. It can	2799	warn "loading facedata from $path\n";
1892	currently store anything that can be serialised using Storable, which
1893	excludes objects.
1894		2800
1895	The parameter C<$family> should best start with the name of the extension	2801	my $facedata;
1896	using it, it should be unique.	2802	0 < aio_load $path, $facedata
		2803	or die "$path: $!";
1897		2804
1898	=over 4	2805	$facedata = Coro::Storable::thaw $facedata;
1899		2806
1900	=item $hashref = cf::db_get $family	2807	$facedata->{version} == 2
		2808	or cf::cleanup "$path: version mismatch, cannot proceed.";
1901		2809
1902	Return a hashref for use by the extension C<$family>, which can be
1903	modified. After modifications, you have to call C<cf::db_dirty> or
1904	C<cf::db_sync>.
1905
1906	=item $value = cf::db_get $family => $key
1907
1908	Returns a single value from the database
1909
1910	=item cf::db_put $family => $hashref
1911
1912	Stores the given family hashref into the database. Updates are delayed, if
1913	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1914
1915	=item cf::db_put $family => $key => $value
1916
1917	Stores the given C<$value> in the family hash. Updates are delayed, if you
1918	want the data to be synced to disk immediately, use C<cf::db_sync>.
1919
1920	=item cf::db_dirty
1921
1922	Marks the database as dirty, to be updated at a later time.
1923
1924	=item cf::db_sync
1925
1926	Immediately write the database to disk I<if it is dirty>.
1927
1928	=cut
1929
1930	our $DB;
1931
1932	{
1933	my $path = cf::localdir . "/database.pst";
1934
1935	sub db_load() {
1936	$DB = stat $path ? Storable::retrieve $path : { };
1937	}	2810	{
		2811	my $faces = $facedata->{faceinfo};
1938		2812
1939	my $pid;	2813	while (my ($face, $info) = each %$faces) {
		2814	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2815	cf::face::set_visibility $idx, $info->{visibility};
		2816	cf::face::set_magicmap $idx, $info->{magicmap};
		2817	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2818	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1940		2819
1941	sub db_save() {	2820	cf::cede_to_tick;
1942	waitpid $pid, 0 if $pid;
1943	if (0 == ($pid = fork)) {
1944	$DB->{_meta}{version} = 1;
1945	Storable::nstore $DB, "$path~";
1946	rename "$path~", $path;
1947	cf::_exit 0 if defined $pid;
1948	}
1949	}
1950
1951	my $dirty;
1952
1953	sub db_sync() {
1954	db_save if $dirty;
1955	undef $dirty;
1956	}
1957
1958	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1959	db_sync;
1960	});
1961
1962	sub db_dirty() {
1963	$dirty = 1;
1964	$idle->start;
1965	}
1966
1967	sub db_get($;$) {
1968	@_ >= 2
1969	? $DB->{$_[0]}{$_[1]}
1970	: ($DB->{$_[0]} ||= { })
1971	}
1972
1973	sub db_put($$;$) {
1974	if (@_ >= 3) {
1975	$DB->{$_[0]}{$_[1]} = $_[2];
1976	} else {
1977	$DB->{$_[0]} = $_[1];
1978	}
1979	db_dirty;
1980	}
1981
1982	cf::global->attach (
1983	prio => 10000,
1984	on_cleanup => sub {
1985	db_sync;
1986	},	2821	}
1987	);
1988	}
1989		2822
1990	#############################################################################	2823	while (my ($face, $info) = each %$faces) {
1991	# the server's main()	2824	next unless $info->{smooth};
		2825	my $idx = cf::face::find $face
		2826	or next;
		2827	if (my $smooth = cf::face::find $info->{smooth}) {
		2828	cf::face::set_smooth $idx, $smooth;
		2829	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2830	} else {
		2831	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2832	}
		2833
		2834	cf::cede_to_tick;
		2835	}
		2836	}
		2837
		2838	{
		2839	my $anims = $facedata->{animinfo};
		2840
		2841	while (my ($anim, $info) = each %$anims) {
		2842	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2843	cf::cede_to_tick;
		2844	}
		2845
		2846	cf::anim::invalidate_all; # d'oh
		2847	}
		2848
		2849	{
		2850	# TODO: for gcfclient pleasure, we should give resources
		2851	# that gcfclient doesn't grok a >10000 face index.
		2852	my $res = $facedata->{resource};
		2853	my $enc = JSON::XS->new->utf8->canonical;
		2854
		2855	while (my ($name, $info) = each %$res) {
		2856	my $meta = $enc->encode ({
		2857	name => $name,
		2858	type => $info->{type},
		2859	copyright => $info->{copyright}, #TODO#
		2860	});
		2861
		2862	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2863
		2864	if ($name =~ /\.jpg$/) {
		2865	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2866	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2867	} else {
		2868	my $data = pack "(w/a*)*", $meta, $info->{data};
		2869	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2870
		2871	cf::face::set_type $idx, 1;
		2872	cf::face::set_data $idx, 0, $data, $chk;
		2873	}
		2874
		2875	cf::cede_to_tick;
		2876	}
		2877	}
		2878
		2879	1
		2880	}
		2881
		2882	sub reload_regions {
		2883	load_resource_file "$MAPDIR/regions"
		2884	or die "unable to load regions file\n";
		2885
		2886	for (cf::region::list) {
		2887	$_->{match} = qr/$_->{match}/
		2888	if exists $_->{match};
		2889	}
		2890	}
		2891
		2892	sub reload_facedata {
		2893	load_facedata "$DATADIR/facedata"
		2894	or die "unable to load facedata\n";
		2895	}
		2896
		2897	sub reload_archetypes {
		2898	load_resource_file "$DATADIR/archetypes"
		2899	or die "unable to load archetypes\n";
		2900	#d# NEED to laod twice to resolve forward references
		2901	# this really needs to be done in an extra post-pass
		2902	# (which needs to be synchronous, so solve it differently)
		2903	load_resource_file "$DATADIR/archetypes"
		2904	or die "unable to load archetypes\n";
		2905	}
		2906
		2907	sub reload_treasures {
		2908	load_resource_file "$DATADIR/treasures"
		2909	or die "unable to load treasurelists\n";
		2910	}
		2911
		2912	sub reload_resources {
		2913	warn "reloading resource files...\n";
		2914
		2915	reload_regions;
		2916	reload_facedata;
		2917	#reload_archetypes;#d#
		2918	reload_archetypes;
		2919	reload_treasures;
		2920
		2921	warn "finished reloading resource files\n";
		2922	}
		2923
		2924	sub init {
		2925	reload_resources;
		2926	}
1992		2927
1993	sub cfg_load {	2928	sub cfg_load {
1994	open my $fh, "<:utf8", cf::confdir . "/config"	2929	open my $fh, "<:utf8", "$CONFDIR/config"
1995	or return;	2930	or return;
1996		2931
1997	local $/;	2932	local $/;
1998	*CFG = YAML::Syck::Load <$fh>;	2933	*CFG = YAML::Syck::Load <$fh>;
1999		2934
…		…
2002	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2937	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2003	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2938	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2004		2939
2005	if (exists $CFG{mlockall}) {	2940	if (exists $CFG{mlockall}) {
2006	eval {	2941	eval {
2007	$CFG{mlockall} ? &mlockall : &munlockall	2942	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2008	and die "WARNING: m(un)lockall failed: $!\n";	2943	and die "WARNING: m(un)lockall failed: $!\n";
2009	};	2944	};
2010	warn $@ if $@;	2945	warn $@ if $@;
2011	}	2946	}
2012	}	2947	}
2013		2948
2014	sub main {	2949	sub main {
2015	# we must not ever block the main coroutine	2950	# we must not ever block the main coroutine
2016	local $Coro::idle = sub {	2951	local $Coro::idle = sub {
2017	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2952	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2953	(async {
2018	async { Event::one_event };	2954	Event::one_event;
		2955	})->prio (Coro::PRIO_MAX);
2019	};	2956	};
2020		2957
2021	cfg_load;	2958	cfg_load;
2022	db_load;	2959	db_init;
2023	load_extensions;	2960	load_extensions;
		2961
		2962	$TICK_WATCHER->start;
2024	Event::loop;	2963	Event::loop;
2025	}	2964	}
2026		2965
2027	#############################################################################	2966	#############################################################################
2028	# initialisation	2967	# initialisation and cleanup
2029		2968
		2969	# install some emergency cleanup handlers
		2970	BEGIN {
		2971	for my $signal (qw(INT HUP TERM)) {
		2972	Event->signal (
		2973	reentrant => 0,
		2974	data => WF_AUTOCANCEL,
		2975	signal => $signal,
		2976	prio => 0,
		2977	cb => sub {
		2978	cf::cleanup "SIG$signal";
		2979	},
		2980	);
		2981	}
		2982	}
		2983
		2984	sub write_runtime {
		2985	my $runtime = "$LOCALDIR/runtime";
		2986
		2987	# first touch the runtime file to show we are still running:
		2988	# the fsync below can take a very very long time.
		2989
		2990	IO::AIO::aio_utime $runtime, undef, undef;
		2991
		2992	my $guard = cf::lock_acquire "write_runtime";
		2993
		2994	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2995	or return;
		2996
		2997	my $value = $cf::RUNTIME + 90 + 10;
		2998	# 10 is the runtime save interval, for a monotonic clock
		2999	# 60 allows for the watchdog to kill the server.
		3000
		3001	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3002	and return;
		3003
		3004	# always fsync - this file is important
		3005	aio_fsync $fh
		3006	and return;
		3007
		3008	# touch it again to show we are up-to-date
		3009	aio_utime $fh, undef, undef;
		3010
		3011	close $fh
		3012	or return;
		3013
		3014	aio_rename "$runtime~", $runtime
		3015	and return;
		3016
		3017	warn "runtime file written.\n";
		3018
		3019	1
		3020	}
		3021
		3022	sub emergency_save() {
		3023	my $freeze_guard = cf::freeze_mainloop;
		3024
		3025	warn "enter emergency perl save\n";
		3026
		3027	cf::sync_job {
		3028	# use a peculiar iteration method to avoid tripping on perl
		3029	# refcount bugs in for. also avoids problems with players
		3030	# and maps saved/destroyed asynchronously.
		3031	warn "begin emergency player save\n";
		3032	for my $login (keys %cf::PLAYER) {
		3033	my $pl = $cf::PLAYER{$login} or next;
		3034	$pl->valid or next;
		3035	$pl->save;
		3036	}
		3037	warn "end emergency player save\n";
		3038
		3039	warn "begin emergency map save\n";
		3040	for my $path (keys %cf::MAP) {
		3041	my $map = $cf::MAP{$path} or next;
		3042	$map->valid or next;
		3043	$map->save;
		3044	}
		3045	warn "end emergency map save\n";
		3046
		3047	warn "begin emergency database checkpoint\n";
		3048	BDB::db_env_txn_checkpoint $DB_ENV;
		3049	warn "end emergency database checkpoint\n";
		3050	};
		3051
		3052	warn "leave emergency perl save\n";
		3053	}
		3054
		3055	sub post_cleanup {
		3056	my ($make_core) = @_;
		3057
		3058	warn Carp::longmess "post_cleanup backtrace"
		3059	if $make_core;
		3060	}
		3061
2030	sub reload() {	3062	sub do_reload_perl() {
2031	# can/must only be called in main	3063	# can/must only be called in main
2032	if ($Coro::current != $Coro::main) {	3064	if ($Coro::current != $Coro::main) {
2033	warn "can only reload from main coroutine\n";	3065	warn "can only reload from main coroutine";
2034	return;	3066	return;
2035	}	3067	}
2036		3068
2037	warn "reloading...";	3069	warn "reloading...";
2038		3070
2039	my $guard = freeze_mainloop;	3071	warn "entering sync_job";
		3072
		3073	cf::sync_job {
		3074	cf::write_runtime; # external watchdog should not bark
2040	cf::emergency_save;	3075	cf::emergency_save;
		3076	cf::write_runtime; # external watchdog should not bark
2041		3077
2042	eval {	3078	warn "syncing database to disk";
		3079	BDB::db_env_txn_checkpoint $DB_ENV;
		3080
2043	# if anything goes wrong in here, we should simply crash as we already saved	3081	# if anything goes wrong in here, we should simply crash as we already saved
2044		3082
2045	# cancel all watchers	3083	warn "cancelling all WF_AUTOCANCEL watchers";
2046	for (Event::all_watchers) {	3084	for (Event::all_watchers) {
2047	$_->cancel if $_->data & WF_AUTOCANCEL;	3085	$_->cancel if $_->data & WF_AUTOCANCEL;
2048	}	3086	}
2049		3087
		3088	warn "flushing outstanding aio requests";
		3089	for (;;) {
		3090	BDB::flush;
		3091	IO::AIO::flush;
		3092	Coro::cede;
		3093	last unless IO::AIO::nreqs || BDB::nreqs;
		3094	warn "iterate...";
		3095	}
		3096
		3097	++$RELOAD;
		3098
2050	# cancel all extension coros	3099	warn "cancelling all extension coros";
2051	$_->cancel for values %EXT_CORO;	3100	$_->cancel for values %EXT_CORO;
2052	%EXT_CORO = ();	3101	%EXT_CORO = ();
2053		3102
2054	# unload all extensions	3103	warn "removing commands";
2055	for (@exts) {	3104	%COMMAND = ();
		3105
		3106	warn "removing ext/exti commands";
		3107	%EXTCMD = ();
		3108	%EXTICMD = ();
		3109
		3110	warn "unloading/nuking all extensions";
		3111	for my $pkg (@EXTS) {
2056	warn "unloading <$_>";	3112	warn "... unloading $pkg";
2057	unload_extension $_;	3113
		3114	if (my $cb = $pkg->can ("unload")) {
		3115	eval {
		3116	$cb->($pkg);
		3117	1
		3118	} or warn "$pkg unloaded, but with errors: $@";
2058	}	3119	}
2059		3120
		3121	warn "... nuking $pkg";
		3122	Symbol::delete_package $pkg;
		3123	}
		3124
2060	# unload all modules loaded from $LIBDIR	3125	warn "unloading all perl modules loaded from $LIBDIR";
2061	while (my ($k, $v) = each %INC) {	3126	while (my ($k, $v) = each %INC) {
2062	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3127	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2063		3128
2064	warn "removing <$k>";	3129	warn "... unloading $k";
2065	delete $INC{$k};	3130	delete $INC{$k};
2066		3131
2067	$k =~ s/\.pm$//;	3132	$k =~ s/\.pm$//;
2068	$k =~ s/\//::/g;	3133	$k =~ s/\//::/g;
2069		3134
…		…
2072	}	3137	}
2073		3138
2074	Symbol::delete_package $k;	3139	Symbol::delete_package $k;
2075	}	3140	}
2076		3141
2077	# sync database to disk
2078	cf::db_sync;
2079	IO::AIO::flush;
2080
2081	# get rid of safe::, as good as possible	3142	warn "getting rid of safe::, as good as possible";
2082	Symbol::delete_package "safe::$_"	3143	Symbol::delete_package "safe::$_"
2083	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3144	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2084		3145
2085	# remove register_script_function callbacks
2086	# TODO
2087
2088	# unload cf.pm "a bit"	3146	warn "unloading cf.pm \"a bit\"";
2089	delete $INC{"cf.pm"};	3147	delete $INC{"cf.pm"};
		3148	delete $INC{"cf/pod.pm"};
2090		3149
2091	# don't, removes xs symbols, too,	3150	# don't, removes xs symbols, too,
2092	# and global variables created in xs	3151	# and global variables created in xs
2093	#Symbol::delete_package __PACKAGE__;	3152	#Symbol::delete_package __PACKAGE__;
2094		3153
2095	# reload cf.pm	3154	warn "unload completed, starting to reload now";
		3155
2096	warn "reloading cf.pm";	3156	warn "reloading cf.pm";
2097	require cf;	3157	require cf;
2098	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3158	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2099		3159
2100	# load config and database again	3160	warn "loading config and database again";
2101	cf::cfg_load;	3161	cf::cfg_load;
2102	cf::db_load;
2103		3162
2104	# load extensions
2105	warn "load extensions";	3163	warn "loading extensions";
2106	cf::load_extensions;	3164	cf::load_extensions;
2107		3165
2108	# reattach attachments to objects	3166	warn "reattaching attachments to objects/players";
2109	warn "reattach";	3167	_global_reattach; # objects, sockets
2110	_global_reattach;	3168	warn "reattaching attachments to maps";
2111	};	3169	reattach $_ for values %MAP;
		3170	warn "reattaching attachments to players";
		3171	reattach $_ for values %PLAYER;
2112		3172
2113	if ($@) {	3173	warn "leaving sync_job";
		3174
		3175	1
		3176	} or do {
2114	warn $@;	3177	warn $@;
2115	warn "error while reloading, exiting.";	3178	warn "error while reloading, exiting.";
2116	exit 1;	3179	exit 1;
2117	}	3180	};
2118		3181
2119	warn "reloaded successfully";	3182	warn "reloaded";
2120	};	3183	};
2121		3184
2122	#############################################################################	3185	our $RELOAD_WATCHER; # used only during reload
2123		3186
2124	unless ($LINK_MAP) {	3187	sub reload_perl() {
2125	$LINK_MAP = cf::map::new;	3188	# doing reload synchronously and two reloads happen back-to-back,
		3189	# coro crashes during coro_state_free->destroy here.
2126		3190
2127	$LINK_MAP->width (41);	3191	$RELOAD_WATCHER ||= Event->timer (
2128	$LINK_MAP->height (41);	3192	reentrant => 0,
2129	$LINK_MAP->alloc;
2130	$LINK_MAP->path ("{link}");
2131	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2132	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2133
2134	# dirty hack because... archetypes are not yet loaded
2135	Event->timer (
2136	after => 2,	3193	after => 0,
		3194	data => WF_AUTOCANCEL,
2137	cb => sub {	3195	cb => sub {
2138	$_[0]->w->cancel;	3196	do_reload_perl;
2139		3197	undef $RELOAD_WATCHER;
2140	# provide some exits "home"
2141	my $exit = cf::object::new "exit";
2142
2143	$exit->slaying ($EMERGENCY_POSITION->[0]);
2144	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2145	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2146
2147	$LINK_MAP->insert ($exit->clone, 19, 19);
2148	$LINK_MAP->insert ($exit->clone, 19, 20);
2149	$LINK_MAP->insert ($exit->clone, 19, 21);
2150	$LINK_MAP->insert ($exit->clone, 20, 19);
2151	$LINK_MAP->insert ($exit->clone, 20, 21);
2152	$LINK_MAP->insert ($exit->clone, 21, 19);
2153	$LINK_MAP->insert ($exit->clone, 21, 20);
2154	$LINK_MAP->insert ($exit->clone, 21, 21);
2155
2156	$exit->destroy;
2157	});	3198	},
2158		3199	);
2159	$LINK_MAP->{deny_save} = 1;
2160	$LINK_MAP->{deny_reset} = 1;
2161
2162	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2163	}	3200	}
2164
2165	register "<global>", __PACKAGE__;
2166		3201
2167	register_command "reload" => sub {	3202	register_command "reload" => sub {
2168	my ($who, $arg) = @_;	3203	my ($who, $arg) = @_;
2169		3204
2170	if ($who->flag (FLAG_WIZ)) {	3205	if ($who->flag (FLAG_WIZ)) {
2171	$who->message ("start of reload.");
2172	reload;
2173	$who->message ("end of reload.");	3206	$who->message ("reloading server.");
		3207	async { reload_perl };
2174	}	3208	}
2175	};	3209	};
2176		3210
2177	unshift @INC, $LIBDIR;	3211	unshift @INC, $LIBDIR;
2178		3212
		3213	my $bug_warning = 0;
		3214
		3215	our @WAIT_FOR_TICK;
		3216	our @WAIT_FOR_TICK_BEGIN;
		3217
		3218	sub wait_for_tick {
		3219	return unless $TICK_WATCHER->is_active;
		3220	return if $Coro::current == $Coro::main;
		3221
		3222	my $signal = new Coro::Signal;
		3223	push @WAIT_FOR_TICK, $signal;
		3224	$signal->wait;
		3225	}
		3226
		3227	sub wait_for_tick_begin {
		3228	return unless $TICK_WATCHER->is_active;
		3229	return if $Coro::current == $Coro::main;
		3230
		3231	my $signal = new Coro::Signal;
		3232	push @WAIT_FOR_TICK_BEGIN, $signal;
		3233	$signal->wait;
		3234	}
		3235
		3236	my $min = 1e6;#d#
		3237	my $avg = 10;
2179	$TICK_WATCHER = Event->timer (	3238	$TICK_WATCHER = Event->timer (
2180	reentrant => 0,	3239	reentrant => 0,
		3240	parked => 1,
2181	prio => 0,	3241	prio => 0,
2182	at => $NEXT_TICK || $TICK,	3242	at => $NEXT_TICK || $TICK,
2183	data => WF_AUTOCANCEL,	3243	data => WF_AUTOCANCEL,
2184	cb => sub {	3244	cb => sub {
		3245	if ($Coro::current != $Coro::main) {
		3246	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3247	unless ++$bug_warning > 10;
		3248	return;
		3249	}
		3250
		3251	$NOW = $tick_start = Event::time;
		3252
2185	cf::server_tick; # one server iteration	3253	cf::server_tick; # one server iteration
		3254
		3255	0 && sync_job {#d#
		3256	for(1..10) {
		3257	my $t = Event::time;
		3258	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3259	or die;
		3260
		3261	$map->width (50);
		3262	$map->height (50);
		3263	$map->alloc;
		3264	$map->_load_objects ("/tmp/x.map", 1);
		3265	my $t = Event::time - $t;
		3266
		3267	#next unless $t < 0.0013;#d#
		3268	if ($t < $min) {
		3269	$min = $t;
		3270	}
		3271	$avg = $avg * 0.99 + $t * 0.01;
		3272	}
		3273	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3274	exit 0;
		3275	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3276	};
		3277
2186	$RUNTIME += $TICK;	3278	$RUNTIME += $TICK;
2187	$NEXT_TICK += $TICK;	3279	$NEXT_TICK += $TICK;
2188		3280
		3281	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3282	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3283	Coro::async_pool {
		3284	write_runtime
		3285	or warn "ERROR: unable to write runtime file: $!";
		3286	};
		3287	}
		3288
		3289	# my $AFTER = Event::time;
		3290	# warn $AFTER - $NOW;#d#
		3291
		3292	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3293	$sig->send;
		3294	}
		3295	while (my $sig = shift @WAIT_FOR_TICK) {
		3296	$sig->send;
		3297	}
		3298
		3299	$NOW = Event::time;
		3300
2189	# if we are delayed by four ticks or more, skip them all	3301	# if we are delayed by four ticks or more, skip them all
2190	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3302	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2191		3303
2192	$TICK_WATCHER->at ($NEXT_TICK);	3304	$TICK_WATCHER->at ($NEXT_TICK);
2193	$TICK_WATCHER->start;	3305	$TICK_WATCHER->start;
		3306
		3307	$LOAD = ($NOW - $tick_start) / $TICK;
		3308	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3309
		3310	_post_tick;
		3311
		3312
2194	},	3313	},
2195	);	3314	);
2196		3315
		3316	{
2197	IO::AIO::max_poll_time $TICK * 0.2;	3317	BDB::max_poll_time $TICK * 0.1;
2198		3318	$BDB_POLL_WATCHER = Event->io (
2199	Event->io (	3319	reentrant => 0,
2200	fd => IO::AIO::poll_fileno,	3320	fd => BDB::poll_fileno,
2201	poll => 'r',	3321	poll => 'r',
2202	prio => 5,	3322	prio => 0,
2203	data => WF_AUTOCANCEL,
2204	cb => \&IO::AIO::poll_cb,
2205	);
2206
2207	Event->timer (
2208	data => WF_AUTOCANCEL,	3323	data => WF_AUTOCANCEL,
2209	after => 0,	3324	cb => \&BDB::poll_cb,
2210	interval => 10,	3325	);
2211	cb => sub {	3326	BDB::min_parallel 8;
2212	(Coro::unblock_sub {	3327
2213	write_runtime	3328	BDB::set_sync_prepare {
2214	or warn "ERROR: unable to write runtime file: $!";	3329	my $status;
		3330	my $current = $Coro::current;
		3331	(
		3332	sub {
		3333	$status = $!;
		3334	$current->ready; undef $current;
		3335	},
		3336	sub {
		3337	Coro::schedule while defined $current;
		3338	$! = $status;
		3339	},
		3340	)
		3341	};
		3342
		3343	unless ($DB_ENV) {
		3344	$DB_ENV = BDB::db_env_create;
		3345
		3346	cf::sync_job {
		3347	eval {
		3348	BDB::db_env_open
		3349	$DB_ENV,
		3350	$BDBDIR,
		3351	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3352	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3353	0666;
		3354
		3355	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3356
		3357	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3358	$DB_ENV->set_lk_detect;
		3359	};
		3360
		3361	cf::cleanup "db_env_open(db): $@" if $@;
2215	})->();	3362	};
2216	},	3363	}
2217	);	3364	}
		3365
		3366	{
		3367	IO::AIO::min_parallel 8;
		3368
		3369	undef $Coro::AIO::WATCHER;
		3370	IO::AIO::max_poll_time $TICK * 0.1;
		3371	$AIO_POLL_WATCHER = Event->io (
		3372	reentrant => 0,
		3373	data => WF_AUTOCANCEL,
		3374	fd => IO::AIO::poll_fileno,
		3375	poll => 'r',
		3376	prio => 6,
		3377	cb => \&IO::AIO::poll_cb,
		3378	);
		3379	}
		3380
		3381	my $_log_backtrace;
		3382
		3383	sub _log_backtrace {
		3384	my ($msg, @addr) = @_;
		3385
		3386	$msg =~ s/\n//;
		3387
		3388	# limit the # of concurrent backtraces
		3389	if ($_log_backtrace < 2) {
		3390	++$_log_backtrace;
		3391	async {
		3392	my @bt = fork_call {
		3393	@addr = map { sprintf "%x", $_ } @addr;
		3394	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3395	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3396	or die "addr2line: $!";
		3397
		3398	my @funcs;
		3399	my @res = <$fh>;
		3400	chomp for @res;
		3401	while (@res) {
		3402	my ($func, $line) = splice @res, 0, 2, ();
		3403	push @funcs, "[$func] $line";
		3404	}
		3405
		3406	@funcs
		3407	};
		3408
		3409	LOG llevInfo, "[ABT] $msg\n";
		3410	LOG llevInfo, "[ABT] $_\n" for @bt;
		3411	--$_log_backtrace;
		3412	};
		3413	} else {
		3414	LOG llevInfo, "[ABT] $msg\n";
		3415	LOG llevInfo, "[ABT] [suppressed]\n";
		3416	}
		3417	}
		3418
		3419	# load additional modules
		3420	use cf::pod;
2218		3421
2219	END { cf::emergency_save }	3422	END { cf::emergency_save }
2220		3423
2221	1	3424	1
2222		3425

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