[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.86 by root, Thu Dec 14 05:09:32 2006 UTC vs.
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC

…		…
1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Digest::MD5;
		21	use Fcntl;
10	use IO::AIO ();	22	use IO::AIO 2.31 ();
11	use YAML::Syck ();	23	use YAML::Syck ();
12	use Time::HiRes;	24	use Time::HiRes;
13	use Event;	25
14	$Event::Eval = 1; # no idea why this is required, but it is	26	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		27
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	29	$YAML::Syck::ImplicitUnicode = 1;
18		30
19	use strict;	31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
		32
		33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
20		34
21	our %COMMAND = ();	35	our %COMMAND = ();
22	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
23	our %EXTCMD = ();	37	our %EXTCMD = ();
24		38
25	_init_vars;
26
27	our @EVENT;	39	our @EVENT;
28	our $LIBDIR = maps_directory "perl";	40	our $LIBDIR = datadir . "/ext";
29		41
30	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
31	our $TICK_WATCHER;	43	our $TICK_WATCHER;
32	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
33		46
34	our %CFG;	47	our %CFG;
35		48
36	our $UPTIME; $UPTIME \|\|= time;	49	our $UPTIME; $UPTIME \|\|= time;
		50	our $RUNTIME;
		51
		52	our %MAP; # all maps
		53	our $LINK_MAP; # the special {link} map
		54	our $FREEZE;
		55	our $RANDOM_MAPS = cf::localdir . "/random";
		56	our %EXT_CORO;
		57
		58	binmode STDOUT;
		59	binmode STDERR;
		60
		61	# read virtual server time, if available
		62	unless ($RUNTIME \|\| !-e cf::localdir . "/runtime") {
		63	open my $fh, "<", cf::localdir . "/runtime"
		64	or die "unable to read runtime file: $!";
		65	$RUNTIME = <$fh> + 0.;
		66	}
		67
		68	mkdir cf::localdir;
		69	mkdir cf::localdir . "/" . cf::playerdir;
		70	mkdir cf::localdir . "/" . cf::tmpdir;
		71	mkdir cf::localdir . "/" . cf::uniquedir;
		72	mkdir $RANDOM_MAPS;
		73
		74	# a special map that is always available
		75	our $LINK_MAP;
37		76
38	#############################################################################	77	#############################################################################
39		78
40	=head2 GLOBAL VARIABLES	79	=head2 GLOBAL VARIABLES
41		80
42	=over 4	81	=over 4
43		82
44	=item $cf::UPTIME	83	=item $cf::UPTIME
45		84
46	The timestamp of the server start (so not actually an uptime).	85	The timestamp of the server start (so not actually an uptime).
		86
		87	=item $cf::RUNTIME
		88
		89	The time this server has run, starts at 0 and is increased by $cf::TICK on
		90	every server tick.
47		91
48	=item $cf::LIBDIR	92	=item $cf::LIBDIR
49		93
50	The perl library directory, where extensions and cf-specific modules can	94	The perl library directory, where extensions and cf-specific modules can
51	be found. It will be added to C<@INC> automatically.	95	be found. It will be added to C<@INC> automatically.
		96
		97	=item $cf::NOW
		98
		99	The time of the last (current) server tick.
52		100
53	=item $cf::TICK	101	=item $cf::TICK
54		102
55	The interval between server ticks, in seconds.	103	The interval between server ticks, in seconds.
56		104
64	=cut	112	=cut
65		113
66	BEGIN {	114	BEGIN {
67	*CORE::GLOBAL::warn = sub {	115	*CORE::GLOBAL::warn = sub {
68	my $msg = join "", @_;	116	my $msg = join "", @_;
		117	utf8::encode $msg;
		118
69	$msg .= "\n"	119	$msg .= "\n"
70	unless $msg =~ /\n$/;	120	unless $msg =~ /\n$/;
71		121
72	print STDERR "cfperl: $msg";
73	LOG llevError, "cfperl: $msg";	122	LOG llevError, "cfperl: $msg";
74	};	123	};
75	}	124	}
76		125
		126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
		127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
		128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
		129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
		130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
77	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
78		132
79	# we bless all objects into (empty) derived classes to force a method lookup	133	# we bless all objects into (empty) derived classes to force a method lookup
80	# within the Safe compartment.	134	# within the Safe compartment.
81	for my $pkg (qw(	135	for my $pkg (qw(
		136	cf::global cf::attachable
82	cf::object cf::object::player	137	cf::object cf::object::player
83	cf::client_socket cf::player	138	cf::client cf::player
84	cf::arch cf::living	139	cf::arch cf::living
85	cf::map cf::party cf::region	140	cf::map cf::party cf::region
86	)) {	141	)) {
87	no strict 'refs';	142	no strict 'refs';
88	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
…		…
124	sub to_json($) {	179	sub to_json($) {
125	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
126	JSON::Syck::Dump $_[0]	181	JSON::Syck::Dump $_[0]
127	}	182	}
128		183
		184	=item cf::sync_job { BLOCK }
		185
		186	The design of crossfire+ requires that the main coro ($Coro::main) is
		187	always able to handle events or runnable, as crossfire+ is only partly
		188	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		189
		190	If it must be done, put the blocking parts into C<sync_job>. This will run
		191	the given BLOCK in another coroutine while waiting for the result. The
		192	server will be frozen during this time, so the block should either finish
		193	fast or be very important.
		194
		195	=cut
		196
		197	sub sync_job(&) {
		198	my ($job) = @_;
		199
		200	my $busy = 1;
		201	my @res;
		202
		203	# TODO: use suspend/resume instead
		204	local $FREEZE = 1;
		205
		206	my $coro = Coro::async {
		207	@res = eval { $job->() };
		208	warn $@ if $@;
		209	undef $busy;
		210	};
		211
		212	if ($Coro::current == $Coro::main) {
		213	$coro->prio (Coro::PRIO_MAX);
		214	while ($busy) {
		215	Coro::cede_notself;
		216	Event::one_event unless Coro::nready;
		217	}
		218	} else {
		219	$coro->join;
		220	}
		221
		222	wantarray ? @res : $res[0]
		223	}
		224
		225	=item $coro = cf::coro { BLOCK }
		226
		227	Creates and returns a new coro. This coro is automcatially being canceled
		228	when the extension calling this is being unloaded.
		229
		230	=cut
		231
		232	sub coro(&) {
		233	my $cb = shift;
		234
		235	my $coro; $coro = async {
		236	eval {
		237	$cb->();
		238	};
		239	warn $@ if $@;
		240	};
		241
		242	$coro->on_destroy (sub {
		243	delete $EXT_CORO{$coro+0};
		244	});
		245	$EXT_CORO{$coro+0} = $coro;
		246
		247	$coro
		248	}
		249
		250	sub write_runtime {
		251	my $runtime = cf::localdir . "/runtime";
		252
		253	my $fh = aio_open "$runtime~", O_WRONLY \| O_CREAT, 0644
		254	or return;
		255
		256	my $value = $cf::RUNTIME;
		257	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		258	and return;
		259
		260	aio_fsync $fh
		261	and return;
		262
		263	close $fh
		264	or return;
		265
		266	aio_rename "$runtime~", $runtime
		267	and return;
		268
		269	1
		270	}
		271
129	=back	272	=back
130		273
131	=cut	274	=cut
132		275
133	#############################################################################	276	#############################################################################
134		277
135	=head2 EVENTS AND OBJECT ATTACHMENTS	278	package cf::path;
		279
		280	sub new {
		281	my ($class, $path, $base) = @_;
		282
		283	my $self = bless { }, $class;
		284
		285	if ($path =~ s{^\?random/}{}) {
		286	$self->{random} = cf::from_json $path;
		287	} else {
		288	if ($path =~ s{^~([^/]+)?}{}) {
		289	$self->{user_rel} = 1;
		290
		291	if (defined $1) {
		292	$self->{user} = $1;
		293	} elsif ($base =~ m{^~([^/]+)/}) {
		294	$self->{user} = $1;
		295	} else {
		296	warn "cannot resolve user-relative path without user <$path,$base>\n";
		297	}
		298	} elsif ($path =~ /^\//) {
		299	# already absolute
		300	} else {
		301	$base =~ s{[^/]+/?$}{};
		302	return $class->new ("$base/$path");
		303	}
		304
		305	for ($path) {
		306	redo if s{/\.?/}{/};
		307	redo if s{/[^/]+/\.\./}{/};
		308	}
		309	}
		310
		311	$self->{path} = $path;
		312
		313	$self
		314	}
		315
		316	# the name / primary key / in-game path
		317	sub as_string {
		318	my ($self) = @_;
		319
		320	$self->{user_rel} ? "~$self->{user}$self->{path}"
		321	: $self->{random} ? "?random/$self->{path}"
		322	: $self->{path}
		323	}
		324
		325	# the displayed name, this is a one way mapping
		326	sub visible_name {
		327	my ($self) = @_;
		328
		329	$self->{random} ? "?random/$self->{random}{origin_map}+$self->{random}{origin_x}+$self->{random}{origin_y}/$self->{random}{dungeon_level}"
		330	: $self->as_string
		331	}
		332
		333	# escape the /'s in the path
		334	sub _escaped_path {
		335	# ∕ is U+2215
		336	(my $path = $_[0]{path}) =~ s/\//∕/g;
		337	$path
		338	}
		339
		340	# the original (read-only) location
		341	sub load_path {
		342	my ($self) = @_;
		343
		344	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		345	}
		346
		347	# the temporary/swap location
		348	sub save_path {
		349	my ($self) = @_;
		350
		351	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		352	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, Digest::MD5::md5_hex $self->{path}
		353	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		354	}
		355
		356	# the unique path, might be eq to save_path
		357	sub uniq_path {
		358	my ($self) = @_;
		359
		360	$self->{user_rel} \|\| $self->{random}
		361	? undef
		362	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		363	}
		364
		365	# return random map parameters, or undef
		366	sub random_map_params {
		367	my ($self) = @_;
		368
		369	$self->{random}
		370	}
		371
		372	# this is somewhat ugly, but style maps do need special treatment
		373	sub is_style_map {
		374	$_[0]{path} =~ m{^/styles/}
		375	}
		376
		377	package cf;
		378
		379	#############################################################################
		380
		381	=head2 ATTACHABLE OBJECTS
		382
		383	Many objects in crossfire are so-called attachable objects. That means you can
		384	attach callbacks/event handlers (a collection of which is called an "attachment")
		385	to it. All such attachable objects support the following methods.
		386
		387	In the following description, CLASS can be any of C<global>, C<object>
		388	C<player>, C<client> or C<map> (i.e. the attachable objects in
		389	crossfire+).
136		390
137	=over 4	391	=over 4
138		392
139	=item $object->attach ($attachment, key => $value...)
140
141	=item $object->detach ($attachment)
142
143	Attach/detach a pre-registered attachment to an object.
144
145	=item $player->attach ($attachment, key => $value...)
146
147	=item $player->detach ($attachment)
148
149	Attach/detach a pre-registered attachment to a player.
150
151	=item $map->attach ($attachment, key => $value...)	393	=item $attachable->attach ($attachment, key => $value...)
152		394
153	=item $map->detach ($attachment)	395	=item $attachable->detach ($attachment)
154		396
155	Attach/detach a pre-registered attachment to a map.	397	Attach/detach a pre-registered attachment to a specific object and give it
		398	the specified key/value pairs as arguments.
156		399
157	=item $bool = $object->attached ($name)	400	Example, attach a minesweeper attachment to the given object, making it a
		401	10x10 minesweeper game:
158		402
159	=item $bool = $player->attached ($name)	403	$obj->attach (minesweeper => width => 10, height => 10);
160		404
161	=item $bool = $map->attached ($name)	405	=item $bool = $attachable->attached ($name)
162		406
163	Checks wether the named attachment is currently attached to the object.	407	Checks wether the named attachment is currently attached to the object.
164		408
165	=item cf::attach_global ...	409	=item cf::CLASS->attach ...
166		410
167	Attach handlers for global events.	411	=item cf::CLASS->detach ...
168		412
169	This and all following C<attach_*>-functions expect any number of the	413	Define an anonymous attachment and attach it to all objects of the given
170	following handler/hook descriptions:	414	CLASS. See the next function for an explanation of its arguments.
		415
		416	You can attach to global events by using the C<cf::global> class.
		417
		418	Example, log all player logins:
		419
		420	cf::player->attach (
		421	on_login => sub {
		422	my ($pl) = @_;
		423	...
		424	},
		425	);
		426
		427	Example, attach to the jeweler skill:
		428
		429	cf::object->attach (
		430	type => cf::SKILL,
		431	subtype => cf::SK_JEWELER,
		432	on_use_skill => sub {
		433	my ($sk, $ob, $part, $dir, $msg) = @_;
		434	...
		435	},
		436	);
		437
		438	=item cf::CLASS::attachment $name, ...
		439
		440	Register an attachment by C<$name> through which attachable objects of the
		441	given CLASS can refer to this attachment.
		442
		443	Some classes such as crossfire maps and objects can specify attachments
		444	that are attached at load/instantiate time, thus the need for a name.
		445
		446	These calls expect any number of the following handler/hook descriptions:
171		447
172	=over 4	448	=over 4
173		449
174	=item prio => $number	450	=item prio => $number
175		451
…		…
177	by another C<prio> setting). Lower priority handlers get executed	453	by another C<prio> setting). Lower priority handlers get executed
178	earlier. The default priority is C<0>, and many built-in handlers are	454	earlier. The default priority is C<0>, and many built-in handlers are
179	registered at priority C<-1000>, so lower priorities should not be used	455	registered at priority C<-1000>, so lower priorities should not be used
180	unless you know what you are doing.	456	unless you know what you are doing.
181		457
		458	=item type => $type
		459
		460	(Only for C<< cf::object->attach >> calls), limits the attachment to the
		461	given type of objects only (the additional parameter C<subtype> can be
		462	used to further limit to the given subtype).
		463
182	=item on_I<event> => \&cb	464	=item on_I<event> => \&cb
183		465
184	Call the given code reference whenever the named event happens (event is	466	Call the given code reference whenever the named event happens (event is
185	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which	467	something like C<instantiate>, C<apply>, C<use_skill> and so on, and which
186	handlers are recognised generally depends on the type of object these	468	handlers are recognised generally depends on the type of object these
…		…
195	package and register them. Only handlers for eevents supported by the	477	package and register them. Only handlers for eevents supported by the
196	object/class are recognised.	478	object/class are recognised.
197		479
198	=back	480	=back
199		481
200	=item cf::attach_to_type $object_type, $subtype, ...	482	Example, define an attachment called "sockpuppet" that calls the given
		483	event handler when a monster attacks:
201		484
202	Attach handlers for a specific object type (e.g. TRANSPORT) and	485	cf::object::attachment sockpuppet =>
203	subtype. If C<$subtype> is zero or undef, matches all objects of the given	486	on_skill_attack => sub {
204	type.	487	my ($self, $victim) = @_;
205		488	...
206	=item cf::attach_to_objects ...
207
208	Attach handlers to all objects. Do not use this except for debugging or
209	very rare events, as handlers are (obviously) called for I<all> objects in
210	the game.
211
212	=item cf::attach_to_players ...
213
214	Attach handlers to all players.
215
216	=item cf::attach_to_maps ...
217
218	Attach handlers to all maps.
219
220	=item cf:register_attachment $name, ...
221
222	Register an attachment by name through which objects can refer to this
223	attachment.
224
225	=item cf:register_player_attachment $name, ...
226
227	Register an attachment by name through which players can refer to this
228	attachment.
229
230	=item cf:register_map_attachment $name, ...
231
232	Register an attachment by name through which maps can refer to this
233	attachment.
234
235	=cut
236
237	# the following variables are defined in .xs and must not be re-created
238	our @CB_GLOBAL = (); # registry for all global events
239	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
240	our @CB_PLAYER = ();
241	our @CB_TYPE = (); # registry for type (cf-object class) based events
242	our @CB_MAP = ();
243
244	my %attachment;
245
246	sub _attach_cb($\%$$$) {
247	my ($registry, $undo, $event, $prio, $cb) = @_;
248
249	use sort 'stable';
250
251	$cb = [$prio, $cb];
252
253	@{$registry->[$event]} = sort
254	{ $a->[0] cmp $b->[0] }
255	@{$registry->[$event] \|\| []}, $cb;
256
257	push @{$undo->{cb}}, [$event, $cb];
258	}
259
260	# attach handles attaching event callbacks
261	# the only thing the caller has to do is pass the correct
262	# registry (== where the callback attaches to).
263	sub _attach(\@$@) {
264	my ($registry, $klass, @arg) = @_;
265
266	my $prio = 0;
267
268	my %undo = (
269	registry => $registry,
270	cb => [],
271	);
272
273	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
274
275	while (@arg) {
276	my $type = shift @arg;
277
278	if ($type eq "prio") {
279	$prio = shift @arg;
280
281	} elsif ($type eq "package") {
282	my $pkg = shift @arg;
283
284	while (my ($name, $id) = each %cb_id) {
285	if (my $cb = $pkg->can ($name)) {
286	_attach_cb $registry, %undo, $id, $prio, $cb;
287	}
288	}	489	}
289
290	} elsif (exists $cb_id{$type}) {
291	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @arg;
292
293	} elsif (ref $type) {
294	warn "attaching objects not supported, ignoring.\n";
295
296	} else {
297	shift @arg;
298	warn "attach argument '$type' not supported, ignoring.\n";
299	}
300	}
301
302	\%undo
303	}
304
305	sub _attach_attachment {
306	my ($obj, $name, %arg) = @_;
307
308	return if exists $obj->{_attachment}{$name};
309
310	my $res;
311
312	if (my $attach = $attachment{$name}) {
313	my $registry = $obj->registry;
314
315	for (@$attach) {
316	my ($klass, @attach) = @$_;
317	$res = _attach @$registry, $klass, @attach;
318	}
319
320	$obj->{$name} = \%arg;
321	} else {
322	warn "object uses attachment '$name' that is not available, postponing.\n";
323	}
324
325	$obj->{_attachment}{$name} = undef;
326
327	$res->{attachment} = $name;
328	$res
329	}
330
331	*cf::object::attach =
332	*cf::player::attach =
333	*cf::map::attach = sub {
334	my ($obj, $name, %arg) = @_;
335
336	_attach_attachment $obj, $name, %arg;
337	};
338
339	# all those should be optimised
340	*cf::object::detach =
341	*cf::player::detach =
342	*cf::map::detach = sub {
343	my ($obj, $name) = @_;
344
345	delete $obj->{_attachment}{$name};
346	reattach ($obj);
347	};
348
349	*cf::object::attached =
350	*cf::player::attached =
351	*cf::map::attached = sub {
352	my ($obj, $name) = @_;
353
354	exists $obj->{_attachment}{$name}
355	};
356
357	sub attach_global {
358	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
359	}
360
361	sub attach_to_type {
362	my $type = shift;
363	my $subtype = shift;
364
365	_attach @{$CB_TYPE[$type + $subtype * NUM_SUBTYPES]}, KLASS_OBJECT, @_
366	}
367
368	sub attach_to_objects {
369	_attach @CB_OBJECT, KLASS_OBJECT, @_
370	}
371
372	sub attach_to_players {
373	_attach @CB_PLAYER, KLASS_PLAYER, @_
374	}
375
376	sub attach_to_maps {
377	_attach @CB_MAP, KLASS_MAP, @_
378	}
379
380	sub register_attachment {
381	my $name = shift;
382
383	$attachment{$name} = [[KLASS_OBJECT, @_]];
384	}
385
386	sub register_player_attachment {
387	my $name = shift;
388
389	$attachment{$name} = [[KLASS_PLAYER, @_]];
390	}
391
392	sub register_map_attachment {
393	my $name = shift;
394
395	$attachment{$name} = [[KLASS_MAP, @_]];
396	}
397
398	our $override;
399	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
400
401	sub override {
402	$override = 1;
403	@invoke_results = ();
404	}
405
406	sub do_invoke {
407	my $event = shift;
408	my $callbacks = shift;
409
410	@invoke_results = ();
411
412	local $override;
413
414	for (@$callbacks) {
415	eval { &{$_->[1]} };
416
417	if ($@) {
418	warn "$@";
419	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
420	override;
421	}
422
423	return 1 if $override;
424	}
425
426	0	490	}
427	}
428		491
429	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	492	=item $attachable->valid
430
431	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
432
433	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
434
435	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
436
437	Generate a global/object/player/map-specific event with the given arguments.
438
439	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be
440	removed in future versions), and there is no public API to access override
441	results (if you must, access C<@cf::invoke_results> directly).
442
443	=back
444
445	=cut
446
447	#############################################################################
448
449	=head2 METHODS VALID FOR ALL CORE OBJECTS
450
451	=over 4
452
453	=item $object->valid, $player->valid, $map->valid
454		493
455	Just because you have a perl object does not mean that the corresponding	494	Just because you have a perl object does not mean that the corresponding
456	C-level object still exists. If you try to access an object that has no	495	C-level object still exists. If you try to access an object that has no
457	valid C counterpart anymore you get an exception at runtime. This method	496	valid C counterpart anymore you get an exception at runtime. This method
458	can be used to test for existence of the C object part without causing an	497	can be used to test for existence of the C object part without causing an
459	exception.	498	exception.
460		499
		500	=cut
		501
		502	# the following variables are defined in .xs and must not be re-created
		503	our @CB_GLOBAL = (); # registry for all global events
		504	our @CB_ATTACHABLE = (); # registry for all attachables
		505	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
		506	our @CB_PLAYER = ();
		507	our @CB_CLIENT = ();
		508	our @CB_TYPE = (); # registry for type (cf-object class) based events
		509	our @CB_MAP = ();
		510
		511	my %attachment;
		512
		513	sub _attach_cb($$$$) {
		514	my ($registry, $event, $prio, $cb) = @_;
		515
		516	use sort 'stable';
		517
		518	$cb = [$prio, $cb];
		519
		520	@{$registry->[$event]} = sort
		521	{ $a->[0] cmp $b->[0] }
		522	@{$registry->[$event] \|\| []}, $cb;
		523	}
		524
		525	# hack
		526	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
		527
		528	# attach handles attaching event callbacks
		529	# the only thing the caller has to do is pass the correct
		530	# registry (== where the callback attaches to).
		531	sub _attach {
		532	my ($registry, $klass, @arg) = @_;
		533
		534	my $object_type;
		535	my $prio = 0;
		536	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		537
		538	#TODO: get rid of this hack
		539	if ($attachable_klass{$klass}) {
		540	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		541	}
		542
		543	while (@arg) {
		544	my $type = shift @arg;
		545
		546	if ($type eq "prio") {
		547	$prio = shift @arg;
		548
		549	} elsif ($type eq "type") {
		550	$object_type = shift @arg;
		551	$registry = $CB_TYPE[$object_type] \|\|= [];
		552
		553	} elsif ($type eq "subtype") {
		554	defined $object_type or Carp::croak "subtype specified without type";
		555	my $object_subtype = shift @arg;
		556	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] \|\|= [];
		557
		558	} elsif ($type eq "package") {
		559	my $pkg = shift @arg;
		560
		561	while (my ($name, $id) = each %cb_id) {
		562	if (my $cb = $pkg->can ($name)) {
		563	_attach_cb $registry, $id, $prio, $cb;
		564	}
		565	}
		566
		567	} elsif (exists $cb_id{$type}) {
		568	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
		569
		570	} elsif (ref $type) {
		571	warn "attaching objects not supported, ignoring.\n";
		572
		573	} else {
		574	shift @arg;
		575	warn "attach argument '$type' not supported, ignoring.\n";
		576	}
		577	}
		578	}
		579
		580	sub _object_attach {
		581	my ($obj, $name, %arg) = @_;
		582
		583	return if exists $obj->{_attachment}{$name};
		584
		585	if (my $attach = $attachment{$name}) {
		586	my $registry = $obj->registry;
		587
		588	for (@$attach) {
		589	my ($klass, @attach) = @$_;
		590	_attach $registry, $klass, @attach;
		591	}
		592
		593	$obj->{$name} = \%arg;
		594	} else {
		595	warn "object uses attachment '$name' that is not available, postponing.\n";
		596	}
		597
		598	$obj->{_attachment}{$name} = undef;
		599	}
		600
		601	sub cf::attachable::attach {
		602	if (ref $_[0]) {
		603	_object_attach @_;
		604	} else {
		605	_attach shift->_attach_registry, @_;
		606	}
		607	};
		608
		609	# all those should be optimised
		610	sub cf::attachable::detach {
		611	my ($obj, $name) = @_;
		612
		613	if (ref $obj) {
		614	delete $obj->{_attachment}{$name};
		615	reattach ($obj);
		616	} else {
		617	Carp::croak "cannot, currently, detach class attachments";
		618	}
		619	};
		620
		621	sub cf::attachable::attached {
		622	my ($obj, $name) = @_;
		623
		624	exists $obj->{_attachment}{$name}
		625	}
		626
		627	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
		628	eval "#line " . __LINE__ . " 'cf.pm'
		629	sub cf::\L$klass\E::_attach_registry {
		630	(\\\@CB_$klass, KLASS_$klass)
		631	}
		632
		633	sub cf::\L$klass\E::attachment {
		634	my \$name = shift;
		635
		636	\$attachment{\$name} = [[KLASS_$klass, \@_]];
		637	}
		638	";
		639	die if $@;
		640	}
		641
		642	our $override;
		643	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
		644
		645	sub override {
		646	$override = 1;
		647	@invoke_results = ();
		648	}
		649
		650	sub do_invoke {
		651	my $event = shift;
		652	my $callbacks = shift;
		653
		654	@invoke_results = ();
		655
		656	local $override;
		657
		658	for (@$callbacks) {
		659	eval { &{$_->[1]} };
		660
		661	if ($@) {
		662	warn "$@";
		663	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
		664	override;
		665	}
		666
		667	return 1 if $override;
		668	}
		669
		670	0
		671	}
		672
		673	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
		674
		675	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
		676
		677	Generate an object-specific event with the given arguments.
		678
		679	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
		680	removed in future versions), and there is no public API to access override
		681	results (if you must, access C<@cf::invoke_results> directly).
		682
461	=back	683	=back
462		684
463	=cut	685	=cut
464
465	*cf::object::valid =
466	*cf::player::valid =
467	*cf::map::valid = \&cf::_valid;
468		686
469	#############################################################################	687	#############################################################################
470	# object support	688	# object support
471		689
472	sub instantiate {
473	my ($obj, $data) = @_;
474
475	$data = from_json $data;
476
477	for (@$data) {
478	my ($name, $args) = @$_;
479
480	$obj->attach ($name, %{$args \|\| {} });
481	}
482	}
483
484	# basically do the same as instantiate, without calling instantiate
485	sub reattach {	690	sub reattach {
		691	# basically do the same as instantiate, without calling instantiate
486	my ($obj) = @_;	692	my ($obj) = @_;
		693
487	my $registry = $obj->registry;	694	my $registry = $obj->registry;
488		695
489	@$registry = ();	696	@$registry = ();
490		697
491	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };	698	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
492		699
493	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {	700	for my $name (keys %{ $obj->{_attachment} \|\| {} }) {
494	if (my $attach = $attachment{$name}) {	701	if (my $attach = $attachment{$name}) {
495	for (@$attach) {	702	for (@$attach) {
496	my ($klass, @attach) = @$_;	703	my ($klass, @attach) = @$_;
497	_attach @$registry, $klass, @attach;	704	_attach $registry, $klass, @attach;
498	}	705	}
499	} else {	706	} else {
500	warn "object uses attachment '$name' that is not available, postponing.\n";	707	warn "object uses attachment '$name' that is not available, postponing.\n";
501	}	708	}
502	}	709	}
503	}	710	}
504		711
505	sub object_freezer_save {	712	cf::attachable->attach (
506	my ($filename, $rdata, $objs) = @_;
507
508	if (length $$rdata) {
509	warn sprintf "saving %s (%d,%d)\n",
510	$filename, length $$rdata, scalar @$objs;
511
512	if (open my $fh, ">:raw", "$filename~") {
513	chmod SAVE_MODE, $fh;
514	syswrite $fh, $$rdata;
515	close $fh;
516
517	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
518	chmod SAVE_MODE, $fh;
519	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
520	close $fh;
521	rename "$filename.pst~", "$filename.pst";
522	} else {
523	unlink "$filename.pst";
524	}
525
526	rename "$filename~", $filename;
527	} else {
528	warn "FATAL: $filename~: $!\n";
529	}
530	} else {
531	unlink $filename;
532	unlink "$filename.pst";
533	}
534	}
535
536	sub object_freezer_as_string {
537	my ($rdata, $objs) = @_;
538
539	use Data::Dumper;
540
541	$$rdata . Dumper $objs
542	}
543
544	sub object_thawer_load {
545	my ($filename) = @_;
546
547	local $/;
548
549	my $av;
550
551	#TODO: use sysread etc.
552	if (open my $data, "<:raw:perlio", $filename) {
553	$data = <$data>;
554	if (open my $pst, "<:raw:perlio", "$filename.pst") {
555	$av = eval { (Storable::thaw <$pst>)->{objs} };
556	}
557	return ($data, $av);
558	}
559
560	()
561	}
562
563	attach_to_objects
564	prio => -1000000,	713	prio => -1000000,
		714	on_instantiate => sub {
		715	my ($obj, $data) = @_;
		716
		717	$data = from_json $data;
		718
		719	for (@$data) {
		720	my ($name, $args) = @$_;
		721
		722	$obj->attach ($name, %{$args \|\| {} });
		723	}
		724	},
		725	on_reattach => \&reattach,
565	on_clone => sub {	726	on_clone => sub {
566	my ($src, $dst) = @_;	727	my ($src, $dst) = @_;
567		728
568	@{$dst->registry} = @{$src->registry};	729	@{$dst->registry} = @{$src->registry};
569		730
570	%$dst = %$src;	731	%$dst = %$src;
571		732
572	%{$dst->{_attachment}} = %{$src->{_attachment}}	733	%{$dst->{_attachment}} = %{$src->{_attachment}}
573	if exists $src->{_attachment};	734	if exists $src->{_attachment};
574	},	735	},
575	;	736	);
		737
		738	sub object_freezer_save {
		739	my ($filename, $rdata, $objs) = @_;
		740
		741	sync_job {
		742	if (length $$rdata) {
		743	warn sprintf "saving %s (%d,%d)\n",
		744	$filename, length $$rdata, scalar @$objs;
		745
		746	if (my $fh = aio_open "$filename~", O_WRONLY \| O_CREAT, 0600) {
		747	chmod SAVE_MODE, $fh;
		748	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		749	aio_fsync $fh;
		750	close $fh;
		751
		752	if (@$objs) {
		753	if (my $fh = aio_open "$filename.pst~", O_WRONLY \| O_CREAT, 0600) {
		754	chmod SAVE_MODE, $fh;
		755	my $data = Storable::nfreeze { version => 1, objs => $objs };
		756	aio_write $fh, 0, (length $data), $data, 0;
		757	aio_fsync $fh;
		758	close $fh;
		759	aio_rename "$filename.pst~", "$filename.pst";
		760	}
		761	} else {
		762	aio_unlink "$filename.pst";
		763	}
		764
		765	aio_rename "$filename~", $filename;
		766	} else {
		767	warn "FATAL: $filename~: $!\n";
		768	}
		769	} else {
		770	aio_unlink $filename;
		771	aio_unlink "$filename.pst";
		772	}
		773	}
		774	}
		775
		776	sub object_freezer_as_string {
		777	my ($rdata, $objs) = @_;
		778
		779	use Data::Dumper;
		780
		781	$$rdata . Dumper $objs
		782	}
		783
		784	sub object_thawer_load {
		785	my ($filename) = @_;
		786
		787	my ($data, $av);
		788
		789	(aio_load $filename, $data) >= 0
		790	or return;
		791
		792	unless (aio_stat "$filename.pst") {
		793	(aio_load "$filename.pst", $av) >= 0
		794	or return;
		795	$av = eval { (Storable::thaw <$av>)->{objs} };
		796	}
		797
		798	return ($data, $av);
		799	}
576		800
577	#############################################################################	801	#############################################################################
578	# command handling &c	802	# command handling &c
579		803
580	=item cf::register_command $name => \&callback($ob,$args);	804	=item cf::register_command $name => \&callback($ob,$args);
…		…
609	#warn "registering extcmd '$name' to '$caller'";	833	#warn "registering extcmd '$name' to '$caller'";
610		834
611	$EXTCMD{$name} = [$cb, $caller];	835	$EXTCMD{$name} = [$cb, $caller];
612	}	836	}
613		837
614	attach_to_players	838	cf::player->attach (
615	on_command => sub {	839	on_command => sub {
616	my ($pl, $name, $params) = @_;	840	my ($pl, $name, $params) = @_;
617		841
618	my $cb = $COMMAND{$name}	842	my $cb = $COMMAND{$name}
619	or return;	843	or return;
…		…
639	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	863	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
640	}	864	}
641		865
642	cf::override;	866	cf::override;
643	},	867	},
644	;	868	);
645		869
646	sub register {	870	sub register {
647	my ($base, $pkg) = @_;	871	my ($base, $pkg) = @_;
648		872
649	#TODO	873	#TODO
…		…
718		942
719	Symbol::delete_package $pkg;	943	Symbol::delete_package $pkg;
720	}	944	}
721		945
722	sub load_extensions {	946	sub load_extensions {
723	my $LIBDIR = maps_directory "perl";
724
725	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
726	next unless -r $ext;	948	next unless -r $ext;
727	eval {	949	eval {
728	load_extension $ext;	950	load_extension $ext;
729	1	951	1
…		…
741	defined $path or return;	963	defined $path or return;
742		964
743	unlink "$path.pst";	965	unlink "$path.pst";
744	};	966	};
745		967
746	attach_to_maps prio => -10000, package => cf::mapsupport::;	968	cf::map->attach (prio => -10000, package => cf::mapsupport::);
747		969
748	#############################################################################	970	#############################################################################
749	# load/save perl data associated with player->ob objects	971	# load/save perl data associated with player->ob objects
750		972
751	sub all_objects(@) {	973	sub all_objects(@) {
752	@_, map all_objects ($_->inv), @_	974	@_, map all_objects ($_->inv), @_
753	}	975	}
754		976
755	# TODO: compatibility cruft, remove when no longer needed	977	# TODO: compatibility cruft, remove when no longer needed
756	attach_to_players	978	cf::player->attach (
757	on_load => sub {	979	on_load => sub {
758	my ($pl, $path) = @_;	980	my ($pl, $path) = @_;
759		981
760	for my $o (all_objects $pl->ob) {	982	for my $o (all_objects $pl->ob) {
761	if (my $value = $o->get_ob_key_value ("_perl_data")) {	983	if (my $value = $o->get_ob_key_value ("_perl_data")) {
…		…
763		985
764	%$o = %{ Storable::thaw pack "H*", $value };	986	%$o = %{ Storable::thaw pack "H*", $value };
765	}	987	}
766	}	988	}
767	},	989	},
768	;	990	);
769		991
770	#############################################################################	992	#############################################################################
771		993
772	=head2 CORE EXTENSIONS	994	=head2 CORE EXTENSIONS
773		995
774	Functions and methods that extend core crossfire objects.	996	Functions and methods that extend core crossfire objects.
		997
		998	=head3 cf::player
775		999
776	=over 4	1000	=over 4
777		1001
778	=item cf::player::exists $login	1002	=item cf::player::exists $login
779		1003
…		…
784	sub cf::player::exists($) {	1008	sub cf::player::exists($) {
785	cf::player::find $_[0]	1009	cf::player::find $_[0]
786	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1010	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
787	}	1011	}
788		1012
		1013	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1014
		1015	Sends an ext reply to the player.
		1016
		1017	=cut
		1018
		1019	sub cf::player::ext_reply($$$%) {
		1020	my ($self, $id, %msg) = @_;
		1021
		1022	$msg{msgid} = $id;
		1023
		1024	$self->send ("ext " . to_json \%msg);
		1025	}
		1026
		1027	=back
		1028
		1029	=head3 cf::object::player
		1030
		1031	=over 4
		1032
789	=item $player_object->reply ($npc, $msg[, $flags])	1033	=item $player_object->reply ($npc, $msg[, $flags])
790		1034
791	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1035	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
792	can be C<undef>. Does the right thing when the player is currently in a	1036	can be C<undef>. Does the right thing when the player is currently in a
793	dialogue with the given NPC character.	1037	dialogue with the given NPC character.
794		1038
795	=cut	1039	=cut
796		1040
797	# rough implementation of a future "reply" method that works	1041	# rough implementation of a future "reply" method that works
798	# with dialog boxes.	1042	# with dialog boxes.
		1043	#TODO: the first argument must go, split into a $npc->reply_to ( method
799	sub cf::object::player::reply($$$;$) {	1044	sub cf::object::player::reply($$$;$) {
800	my ($self, $npc, $msg, $flags) = @_;	1045	my ($self, $npc, $msg, $flags) = @_;
801		1046
802	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	1047	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
803		1048
…		…
807	$msg = $npc->name . " says: $msg" if $npc;	1052	$msg = $npc->name . " says: $msg" if $npc;
808	$self->message ($msg, $flags);	1053	$self->message ($msg, $flags);
809	}	1054	}
810	}	1055	}
811		1056
812	=item $player->ext_reply ($msgid, $msgtype, %msg)
813
814	Sends an ext reply to the player.
815
816	=cut
817
818	sub cf::player::ext_reply($$$%) {
819	my ($self, $id, %msg) = @_;
820
821	$msg{msgid} = $id;
822
823	$self->send ("ext " . to_json \%msg);
824	}
825
826	=item $player_object->may ("access")	1057	=item $player_object->may ("access")
827		1058
828	Returns wether the given player is authorized to access resource "access"	1059	Returns wether the given player is authorized to access resource "access"
829	(e.g. "command_wizcast").	1060	(e.g. "command_wizcast").
830		1061
…		…
837	(ref $cf::CFG{"may_$access"}	1068	(ref $cf::CFG{"may_$access"}
838	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1069	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
839	: $cf::CFG{"may_$access"})	1070	: $cf::CFG{"may_$access"})
840	}	1071	}
841		1072
842	=cut	1073	=head3 cf::client
843		1074
844	#############################################################################	1075	=over 4
		1076
		1077	=item $client->send_drawinfo ($text, $flags)
		1078
		1079	Sends a drawinfo packet to the client. Circumvents output buffering so
		1080	should not be used under normal circumstances.
		1081
		1082	=cut
		1083
		1084	sub cf::client::send_drawinfo {
		1085	my ($self, $text, $flags) = @_;
		1086
		1087	utf8::encode $text;
		1088	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1089	}
		1090
		1091
		1092	=item $success = $client->query ($flags, "text", \&cb)
		1093
		1094	Queues a query to the client, calling the given callback with
		1095	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1096	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1097
		1098	Queries can fail, so check the return code. Or don't, as queries will become
		1099	reliable at some point in the future.
		1100
		1101	=cut
		1102
		1103	sub cf::client::query {
		1104	my ($self, $flags, $text, $cb) = @_;
		1105
		1106	return unless $self->state == ST_PLAYING
		1107	\|\| $self->state == ST_SETUP
		1108	\|\| $self->state == ST_CUSTOM;
		1109
		1110	$self->state (ST_CUSTOM);
		1111
		1112	utf8::encode $text;
		1113	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1114
		1115	$self->send_packet ($self->{query_queue}[0][0])
		1116	if @{ $self->{query_queue} } == 1;
		1117	}
		1118
		1119	cf::client->attach (
		1120	on_reply => sub {
		1121	my ($ns, $msg) = @_;
		1122
		1123	# this weird shuffling is so that direct followup queries
		1124	# get handled first
		1125	my $queue = delete $ns->{query_queue};
		1126
		1127	(shift @$queue)->[1]->($msg);
		1128
		1129	push @{ $ns->{query_queue} }, @$queue;
		1130
		1131	if (@{ $ns->{query_queue} } == @$queue) {
		1132	if (@$queue) {
		1133	$ns->send_packet ($ns->{query_queue}[0][0]);
		1134	} else {
		1135	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1136	}
		1137	}
		1138	},
		1139	);
		1140
		1141	=item $client->coro (\&cb)
		1142
		1143	Create a new coroutine, running the specified callback. The coroutine will
		1144	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1145	or loss of connection).
		1146
		1147	=cut
		1148
		1149	sub cf::client::coro {
		1150	my ($self, $cb) = @_;
		1151
		1152	my $coro; $coro = async {
		1153	eval {
		1154	$cb->();
		1155	};
		1156	warn $@ if $@;
		1157	};
		1158
		1159	$coro->on_destroy (sub {
		1160	delete $self->{_coro}{$coro+0};
		1161	});
		1162
		1163	$self->{_coro}{$coro+0} = $coro;
		1164
		1165	$coro
		1166	}
		1167
		1168	cf::client->attach (
		1169	on_destroy => sub {
		1170	my ($ns) = @_;
		1171
		1172	$_->cancel for values %{ (delete $ns->{_coro}) \|\| {} };
		1173	},
		1174	);
		1175
		1176	=back
		1177
845		1178
846	=head2 SAFE SCRIPTING	1179	=head2 SAFE SCRIPTING
847		1180
848	Functions that provide a safe environment to compile and execute	1181	Functions that provide a safe environment to compile and execute
849	snippets of perl code without them endangering the safety of the server	1182	snippets of perl code without them endangering the safety of the server
…		…
864		1197
865	=pod	1198	=pod
866		1199
867	The following fucntions and emthods are available within a safe environment:	1200	The following fucntions and emthods are available within a safe environment:
868		1201
869	cf::object contr pay_amount pay_player	1202	cf::object contr pay_amount pay_player map
870	cf::object::player player	1203	cf::object::player player
871	cf::player peaceful	1204	cf::player peaceful
		1205	cf::map trigger
872		1206
873	=cut	1207	=cut
874		1208
875	for (	1209	for (
876	["cf::object" => qw(contr pay_amount pay_player)],	1210	["cf::object" => qw(contr pay_amount pay_player map)],
877	["cf::object::player" => qw(player)],	1211	["cf::object::player" => qw(player)],
878	["cf::player" => qw(peaceful)],	1212	["cf::player" => qw(peaceful)],
		1213	["cf::map" => qw(trigger)],
879	) {	1214	) {
880	no strict 'refs';	1215	no strict 'refs';
881	my ($pkg, @funs) = @$_;	1216	my ($pkg, @funs) = @$_;
882	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	1217	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
883	for @funs;	1218	for @funs;
…		…
1023	sub db_sync() {	1358	sub db_sync() {
1024	db_save if $dirty;	1359	db_save if $dirty;
1025	undef $dirty;	1360	undef $dirty;
1026	}	1361	}
1027		1362
1028	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, cb => sub {	1363	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1029	db_sync;	1364	db_sync;
1030	});	1365	});
1031		1366
1032	sub db_dirty() {	1367	sub db_dirty() {
1033	$dirty = 1;	1368	$dirty = 1;
…		…
1047	$DB->{$_[0]} = $_[1];	1382	$DB->{$_[0]} = $_[1];
1048	}	1383	}
1049	db_dirty;	1384	db_dirty;
1050	}	1385	}
1051		1386
1052	attach_global	1387	cf::global->attach (
1053	prio => 10000,	1388	prio => 10000,
1054	on_cleanup => sub {	1389	on_cleanup => sub {
1055	db_sync;	1390	db_sync;
1056	},	1391	},
1057	;	1392	);
1058	}	1393	}
1059		1394
1060	#############################################################################	1395	#############################################################################
1061	# the server's main()	1396	# the server's main()
1062		1397
…		…
1067	local $/;	1402	local $/;
1068	*CFG = YAML::Syck::Load <$fh>;	1403	*CFG = YAML::Syck::Load <$fh>;
1069	}	1404	}
1070		1405
1071	sub main {	1406	sub main {
		1407	# we must not ever block the main coroutine
		1408	local $Coro::idle = sub {
		1409	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1410	(Coro::unblock_sub {
		1411	Event::one_event;
		1412	})->();
		1413	};
		1414
1072	cfg_load;	1415	cfg_load;
1073	db_load;	1416	db_load;
1074	load_extensions;	1417	load_extensions;
1075	Event::loop;	1418	Event::loop;
1076	}	1419	}
1077		1420
1078	#############################################################################	1421	#############################################################################
1079	# initialisation	1422	# initialisation
1080		1423
1081	sub _perl_reload(&) {	1424	sub perl_reload() {
1082	my ($msg) = @_;	1425	# can/must only be called in main
		1426	if ($Coro::current != $Coro::main) {
		1427	warn "can only reload from main coroutine\n";
		1428	return;
		1429	}
1083		1430
1084	$msg->("reloading...");	1431	warn "reloading...";
		1432
		1433	local $FREEZE = 1;
		1434	cf::emergency_save;
1085		1435
1086	eval {	1436	eval {
		1437	# if anything goes wrong in here, we should simply crash as we already saved
		1438
1087	# cancel all watchers	1439	# cancel all watchers
1088	$_->cancel for Event::all_watchers;	1440	for (Event::all_watchers) {
		1441	$_->cancel if $_->data & WF_AUTOCANCEL;
		1442	}
		1443
		1444	# cancel all extension coros
		1445	$_->cancel for values %EXT_CORO;
		1446	%EXT_CORO = ();
1089		1447
1090	# unload all extensions	1448	# unload all extensions
1091	for (@exts) {	1449	for (@exts) {
1092	$msg->("unloading <$_>");	1450	warn "unloading <$_>";
1093	unload_extension $_;	1451	unload_extension $_;
1094	}	1452	}
1095		1453
1096	# unload all modules loaded from $LIBDIR	1454	# unload all modules loaded from $LIBDIR
1097	while (my ($k, $v) = each %INC) {	1455	while (my ($k, $v) = each %INC) {
1098	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1456	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1099		1457
1100	$msg->("removing <$k>");	1458	warn "removing <$k>";
1101	delete $INC{$k};	1459	delete $INC{$k};
1102		1460
1103	$k =~ s/\.pm$//;	1461	$k =~ s/\.pm$//;
1104	$k =~ s/\//::/g;	1462	$k =~ s/\//::/g;
1105		1463
…		…
1110	Symbol::delete_package $k;	1468	Symbol::delete_package $k;
1111	}	1469	}
1112		1470
1113	# sync database to disk	1471	# sync database to disk
1114	cf::db_sync;	1472	cf::db_sync;
		1473	IO::AIO::flush;
1115		1474
1116	# get rid of safe::, as good as possible	1475	# get rid of safe::, as good as possible
1117	Symbol::delete_package "safe::$_"	1476	Symbol::delete_package "safe::$_"
1118	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1477	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1119		1478
1120	# remove register_script_function callbacks	1479	# remove register_script_function callbacks
1121	# TODO	1480	# TODO
1122		1481
1123	# unload cf.pm "a bit"	1482	# unload cf.pm "a bit"
…		…
1126	# don't, removes xs symbols, too,	1485	# don't, removes xs symbols, too,
1127	# and global variables created in xs	1486	# and global variables created in xs
1128	#Symbol::delete_package __PACKAGE__;	1487	#Symbol::delete_package __PACKAGE__;
1129		1488
1130	# reload cf.pm	1489	# reload cf.pm
1131	$msg->("reloading cf.pm");	1490	warn "reloading cf.pm";
1132	require cf;	1491	require cf;
		1492	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1133		1493
1134	# load config and database again	1494	# load config and database again
1135	cf::cfg_load;	1495	cf::cfg_load;
1136	cf::db_load;	1496	cf::db_load;
1137		1497
1138	# load extensions	1498	# load extensions
1139	$msg->("load extensions");	1499	warn "load extensions";
1140	cf::load_extensions;	1500	cf::load_extensions;
1141		1501
1142	# reattach attachments to objects	1502	# reattach attachments to objects
1143	$msg->("reattach");	1503	warn "reattach";
1144	_global_reattach;	1504	_global_reattach;
1145	};	1505	};
1146	$msg->($@) if $@;
1147		1506
1148	$msg->("reloaded");	1507	if ($@) {
		1508	warn $@;
		1509	warn "error while reloading, exiting.";
		1510	exit 1;
		1511	}
		1512
		1513	warn "reloaded successfully";
1149	};	1514	};
1150		1515
1151	sub perl_reload() {	1516	#############################################################################
1152	_perl_reload {	1517
1153	warn $_[0];	1518	unless ($LINK_MAP) {
1154	print "$_[0]\n";	1519	$LINK_MAP = cf::map::new;
1155	};	1520
		1521	$LINK_MAP->width (41);
		1522	$LINK_MAP->height (41);
		1523	$LINK_MAP->alloc;
		1524	$LINK_MAP->path ("{link}");
		1525	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1526	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1156	}	1527	}
1157		1528
1158	register "<global>", __PACKAGE__;	1529	register "<global>", __PACKAGE__;
1159		1530
1160	register_command "perl-reload" => sub {	1531	register_command "perl-reload" => sub {
1161	my ($who, $arg) = @_;	1532	my ($who, $arg) = @_;
1162		1533
1163	if ($who->flag (FLAG_WIZ)) {	1534	if ($who->flag (FLAG_WIZ)) {
		1535	$who->message ("start of reload.");
1164	_perl_reload {	1536	perl_reload;
1165	warn $_[0];	1537	$who->message ("end of reload.");
1166	$who->message ($_[0]);
1167	};
1168	}	1538	}
1169	};	1539	};
1170		1540
1171	unshift @INC, $LIBDIR;	1541	unshift @INC, $LIBDIR;
1172		1542
1173	$TICK_WATCHER = Event->timer (	1543	$TICK_WATCHER = Event->timer (
		1544	reentrant => 0,
1174	prio => 1,	1545	prio => 0,
1175	async => 1,
1176	at => $NEXT_TICK \|\| 1,	1546	at => $NEXT_TICK \|\| $TICK,
		1547	data => WF_AUTOCANCEL,
1177	cb => sub {	1548	cb => sub {
		1549	unless ($FREEZE) {
1178	cf::server_tick; # one server iteration	1550	cf::server_tick; # one server iteration
		1551	$RUNTIME += $TICK;
		1552	}
1179		1553
1180	my $NOW = Event::time;
1181	$NEXT_TICK += $TICK;	1554	$NEXT_TICK += $TICK;
1182		1555
1183	# if we are delayed by four ticks or more, skip them all	1556	# if we are delayed by four ticks or more, skip them all
1184	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1557	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1185		1558
1186	$TICK_WATCHER->at ($NEXT_TICK);	1559	$TICK_WATCHER->at ($NEXT_TICK);
1187	$TICK_WATCHER->start;	1560	$TICK_WATCHER->start;
1188	},	1561	},
1189	);	1562	);
1190		1563
1191	IO::AIO::max_poll_time $TICK * 0.2;	1564	IO::AIO::max_poll_time $TICK * 0.2;
1192		1565
		1566	Event->io (
1193	Event->io (fd => IO::AIO::poll_fileno,	1567	fd => IO::AIO::poll_fileno,
1194	poll => 'r',	1568	poll => 'r',
1195	prio => 5,	1569	prio => 5,
		1570	data => WF_AUTOCANCEL,
1196	cb => \&IO::AIO::poll_cb);	1571	cb => \&IO::AIO::poll_cb,
		1572	);
		1573
		1574	Event->timer (
		1575	data => WF_AUTOCANCEL,
		1576	after => 0,
		1577	interval => 10,
		1578	cb => sub {
		1579	(Coro::unblock_sub {
		1580	write_runtime
		1581	or warn "ERROR: unable to write runtime file: $!";
		1582	})->();
		1583	},
		1584	);
1197		1585
1198	1	1586	1
1199		1587

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+Removed lines
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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.86 by root, Thu Dec 14 05:09:32 2006 UTC vs. Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.86 by root, Thu Dec 14 05:09:32 2006 UTC vs.
Revision 1.108 by root, Sun Dec 31 21:02:05 2006 UTC