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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs.
Revision 1.109 by root, Sun Dec 31 22:23:12 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
20		32
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		34
23	our %COMMAND = ();	35	our %COMMAND = ();
24	our %COMMAND_TIME = ();	36	our %COMMAND_TIME = ();
25	our %EXTCMD = ();	37	our %EXTCMD = ();
26		38
27	_init_vars;
28
29	our @EVENT;	39	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	40	our $LIBDIR = datadir . "/ext";
31		41
32	our $TICK = MAX_TIME * 1e-6;	42	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	43	our $TICK_WATCHER;
34	our $NEXT_TICK;	44	our $NEXT_TICK;
		45	our $NOW;
35		46
36	our %CFG;	47	our %CFG;
37		48
38	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;
39		76
40	#############################################################################	77	#############################################################################
41		78
42	=head2 GLOBAL VARIABLES	79	=head2 GLOBAL VARIABLES
43		80
44	=over 4	81	=over 4
45		82
46	=item $cf::UPTIME	83	=item $cf::UPTIME
47		84
48	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.
49		91
50	=item $cf::LIBDIR	92	=item $cf::LIBDIR
51		93
52	The perl library directory, where extensions and cf-specific modules can	94	The perl library directory, where extensions and cf-specific modules can
53	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.
54		100
55	=item $cf::TICK	101	=item $cf::TICK
56		102
57	The interval between server ticks, in seconds.	103	The interval between server ticks, in seconds.
58		104
66	=cut	112	=cut
67		113
68	BEGIN {	114	BEGIN {
69	*CORE::GLOBAL::warn = sub {	115	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	116	my $msg = join "", @_;
		117	utf8::encode $msg;
		118
71	$msg .= "\n"	119	$msg .= "\n"
72	unless $msg =~ /\n$/;	120	unless $msg =~ /\n$/;
73		121
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	122	LOG llevError, "cfperl: $msg";
76	};	123	};
77	}	124	}
78		125
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		132
86	# 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
87	# within the Safe compartment.	134	# within the Safe compartment.
88	for my $pkg (qw(	135	for my $pkg (qw(
89	cf::global	136	cf::global cf::attachable
90	cf::object cf::object::player	137	cf::object cf::object::player
91	cf::client cf::player	138	cf::client cf::player
92	cf::arch cf::living	139	cf::arch cf::living
93	cf::map cf::party cf::region	140	cf::map cf::party cf::region
94	)) {	141	)) {
…		…
132	sub to_json($) {	179	sub to_json($) {
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134	JSON::Syck::Dump $_[0]	181	JSON::Syck::Dump $_[0]
135	}	182	}
136		183
		184	=item cf::sync_job { BLOCK }
		185
		186	The design of crossfire+ requires that the main coro ($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~", $runtime
		267	and return;
		268
		269	1
		270	}
		271
137	=back	272	=back
138		273
139	=cut	274	=cut
140		275
141	#############################################################################	276	#############################################################################
142		277
		278	package cf::path;
		279
		280	sub new {
		281	my ($class, $path, $base) = @_;
		282
		283	my $self = bless { }, $class;
		284
		285	if ($path =~ s{^\?random/}{}) {
		286	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
		287	$self->{random} = cf::from_json $data;
		288	} else {
		289	if ($path =~ s{^~([^/]+)?}{}) {
		290	$self->{user_rel} = 1;
		291
		292	if (defined $1) {
		293	$self->{user} = $1;
		294	} elsif ($base =~ m{^~([^/]+)/}) {
		295	$self->{user} = $1;
		296	} else {
		297	warn "cannot resolve user-relative path without user <$path,$base>\n";
		298	}
		299	} elsif ($path =~ /^\//) {
		300	# already absolute
		301	} else {
		302	$base =~ s{[^/]+/?$}{};
		303	return $class->new ("$base/$path");
		304	}
		305
		306	for ($path) {
		307	redo if s{/\.?/}{/};
		308	redo if s{/[^/]+/\.\./}{/};
		309	}
		310	}
		311
		312	$self->{path} = $path;
		313
		314	$self
		315	}
		316
		317	# the name / primary key / in-game path
		318	sub as_string {
		319	my ($self) = @_;
		320
		321	$self->{user_rel} ? "~$self->{user}$self->{path}"
		322	: $self->{random} ? "?random/$self->{path}"
		323	: $self->{path}
		324	}
		325
		326	# the displayed name, this is a one way mapping
		327	sub visible_name {
		328	my ($self) = @_;
		329
		330	# if (my $rmp = $self->{random}) {
		331	# # todo: be more intelligent about this
		332	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
		333	# } else {
		334	$self->as_string
		335	# }
		336	}
		337
		338	# escape the /'s in the path
		339	sub _escaped_path {
		340	# ∕ is U+2215
		341	(my $path = $_[0]{path}) =~ s/\//∕/g;
		342	$path
		343	}
		344
		345	# the original (read-only) location
		346	sub load_path {
		347	my ($self) = @_;
		348
		349	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
		350	}
		351
		352	# the temporary/swap location
		353	sub save_path {
		354	my ($self) = @_;
		355
		356	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
		357	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
		358	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
		359	}
		360
		361	# the unique path, might be eq to save_path
		362	sub uniq_path {
		363	my ($self) = @_;
		364
		365	$self->{user_rel} \|\| $self->{random}
		366	? undef
		367	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
		368	}
		369
		370	# return random map parameters, or undef
		371	sub random_map_params {
		372	my ($self) = @_;
		373
		374	$self->{random}
		375	}
		376
		377	# this is somewhat ugly, but style maps do need special treatment
		378	sub is_style_map {
		379	$_[0]{path} =~ m{^/styles/}
		380	}
		381
		382	package cf;
		383
		384	#############################################################################
		385
143	=head2 ATTACHABLE OBJECTS	386	=head2 ATTACHABLE OBJECTS
144		387
145	You can define and attach attachments to each "attachable" object in	388	Many objects in crossfire are so-called attachable objects. That means you can
146	crossfire+ (objects, players, clients, maps and the special "global"	389	attach callbacks/event handlers (a collection of which is called an "attachment")
		390	to it. All such attachable objects support the following methods.
		391
147	class). In the following description, CLASS can be any of C<global>,	392	In the following description, CLASS can be any of C<global>, C<object>
148	C<object> C<player>, C<client> or C<map>.	393	C<player>, C<client> or C<map> (i.e. the attachable objects in
		394	crossfire+).
149		395
150	=over 4	396	=over 4
151		397
		398	=item $attachable->attach ($attachment, key => $value...)
		399
		400	=item $attachable->detach ($attachment)
		401
		402	Attach/detach a pre-registered attachment to a specific object and give it
		403	the specified key/value pairs as arguments.
		404
		405	Example, attach a minesweeper attachment to the given object, making it a
		406	10x10 minesweeper game:
		407
		408	$obj->attach (minesweeper => width => 10, height => 10);
		409
		410	=item $bool = $attachable->attached ($name)
		411
		412	Checks wether the named attachment is currently attached to the object.
		413
		414	=item cf::CLASS->attach ...
		415
		416	=item cf::CLASS->detach ...
		417
		418	Define an anonymous attachment and attach it to all objects of the given
		419	CLASS. See the next function for an explanation of its arguments.
		420
		421	You can attach to global events by using the C<cf::global> class.
		422
		423	Example, log all player logins:
		424
		425	cf::player->attach (
		426	on_login => sub {
		427	my ($pl) = @_;
		428	...
		429	},
		430	);
		431
		432	Example, attach to the jeweler skill:
		433
		434	cf::object->attach (
		435	type => cf::SKILL,
		436	subtype => cf::SK_JEWELER,
		437	on_use_skill => sub {
		438	my ($sk, $ob, $part, $dir, $msg) = @_;
		439	...
		440	},
		441	);
		442
152	=item cf::CLASS::attachment $name, ...	443	=item cf::CLASS::attachment $name, ...
153		444
154	Register an attachment by name through which attachable objects can refer	445	Register an attachment by C<$name> through which attachable objects of the
155	to this attachment.	446	given CLASS can refer to this attachment.
156		447
157	=item $bool = $attachable->attached ($name)	448	Some classes such as crossfire maps and objects can specify attachments
		449	that are attached at load/instantiate time, thus the need for a name.
158		450
159	Checks wether the named attachment is currently attached to the object.
160
161	=item $attachable->attach ($attachment, key => $value...)
162
163	=item $attachable->detach ($attachment)
164
165	Attach/detach a pre-registered attachment either to a specific object
166	(C<$attachable>) or all objects of the given class (if C<$attachable> is a
167	class in a static method call).
168
169	You can attach to global events by using the C<cf::global> class.
170
171	These method calls expect any number of the following handler/hook	451	These calls expect any number of the following handler/hook descriptions:
172	descriptions:
173		452
174	=over 4	453	=over 4
175		454
176	=item prio => $number	455	=item prio => $number
177		456
…		…
203	package and register them. Only handlers for eevents supported by the	482	package and register them. Only handlers for eevents supported by the
204	object/class are recognised.	483	object/class are recognised.
205		484
206	=back	485	=back
207		486
		487	Example, define an attachment called "sockpuppet" that calls the given
		488	event handler when a monster attacks:
		489
		490	cf::object::attachment sockpuppet =>
		491	on_skill_attack => sub {
		492	my ($self, $victim) = @_;
		493	...
		494	}
		495	}
		496
		497	=item $attachable->valid
		498
		499	Just because you have a perl object does not mean that the corresponding
		500	C-level object still exists. If you try to access an object that has no
		501	valid C counterpart anymore you get an exception at runtime. This method
		502	can be used to test for existence of the C object part without causing an
		503	exception.
		504
208	=cut	505	=cut
209		506
210	# the following variables are defined in .xs and must not be re-created	507	# the following variables are defined in .xs and must not be re-created
211	our @CB_GLOBAL = (); # registry for all global events	508	our @CB_GLOBAL = (); # registry for all global events
		509	our @CB_ATTACHABLE = (); # registry for all attachables
212	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	510	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
213	our @CB_PLAYER = ();	511	our @CB_PLAYER = ();
214	our @CB_CLIENT = ();	512	our @CB_CLIENT = ();
215	our @CB_TYPE = (); # registry for type (cf-object class) based events	513	our @CB_TYPE = (); # registry for type (cf-object class) based events
216	our @CB_MAP = ();	514	our @CB_MAP = ();
217		515
218	my %attachment;	516	my %attachment;
219		517
220	sub _attach_cb($$$$) {	518	sub _attach_cb($$$$) {
221	my ($registry, $event, $prio, $cb) = @_;	519	my ($registry, $event, $prio, $cb) = @_;
…		…
226		524
227	@{$registry->[$event]} = sort	525	@{$registry->[$event]} = sort
228	{ $a->[0] cmp $b->[0] }	526	{ $a->[0] cmp $b->[0] }
229	@{$registry->[$event] \|\| []}, $cb;	527	@{$registry->[$event] \|\| []}, $cb;
230	}	528	}
		529
		530	# hack
		531	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
231		532
232	# attach handles attaching event callbacks	533	# attach handles attaching event callbacks
233	# the only thing the caller has to do is pass the correct	534	# the only thing the caller has to do is pass the correct
234	# registry (== where the callback attaches to).	535	# registry (== where the callback attaches to).
235	sub _attach {	536	sub _attach {
…		…
237		538
238	my $object_type;	539	my $object_type;
239	my $prio = 0;	540	my $prio = 0;
240	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	541	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
241		542
		543	#TODO: get rid of this hack
		544	if ($attachable_klass{$klass}) {
		545	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		546	}
		547
242	while (@arg) {	548	while (@arg) {
243	my $type = shift @arg;	549	my $type = shift @arg;
244		550
245	if ($type eq "prio") {	551	if ($type eq "prio") {
246	$prio = shift @arg;	552	$prio = shift @arg;
…		…
321	my ($obj, $name) = @_;	627	my ($obj, $name) = @_;
322		628
323	exists $obj->{_attachment}{$name}	629	exists $obj->{_attachment}{$name}
324	}	630	}
325		631
326	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	632	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
327	eval "#line " . __LINE__ . " 'cf.pm'	633	eval "#line " . __LINE__ . " 'cf.pm'
328	sub cf::\L$klass\E::_attach_registry {	634	sub cf::\L$klass\E::_attach_registry {
329	(\\\@CB_$klass, KLASS_$klass)	635	(\\\@CB_$klass, KLASS_$klass)
330	}	636	}
331		637
…		…
367	}	673	}
368		674
369	0	675	0
370	}	676	}
371		677
372	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	678	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
373		679
374	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
375
376	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
377
378	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)	680	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
379		681
380	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
381
382	Generate a global/object/player/map-specific event with the given arguments.	682	Generate an object-specific event with the given arguments.
383		683
384	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	684	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
385	removed in future versions), and there is no public API to access override	685	removed in future versions), and there is no public API to access override
386	results (if you must, access C<@cf::invoke_results> directly).	686	results (if you must, access C<@cf::invoke_results> directly).
387		687
388	=back	688	=back
389		689
390	=cut	690	=cut
391		691
392	#############################################################################	692	#############################################################################
393
394	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
395
396	Attachable objects includes objects, players, clients and maps.
397
398	=over 4
399
400	=item $object->valid
401
402	Just because you have a perl object does not mean that the corresponding
403	C-level object still exists. If you try to access an object that has no
404	valid C counterpart anymore you get an exception at runtime. This method
405	can be used to test for existence of the C object part without causing an
406	exception.
407
408	=back
409
410	=cut
411
412	#############################################################################
413	# object support	693	# object support
414		694
415	sub instantiate {
416	my ($obj, $data) = @_;
417
418	$data = from_json $data;
419
420	for (@$data) {
421	my ($name, $args) = @$_;
422
423	$obj->attach ($name, %{$args \|\| {} });
424	}
425	}
426
427	# basically do the same as instantiate, without calling instantiate
428	sub reattach {	695	sub reattach {
		696	# basically do the same as instantiate, without calling instantiate
429	my ($obj) = @_;	697	my ($obj) = @_;
		698
430	my $registry = $obj->registry;	699	my $registry = $obj->registry;
431		700
432	@$registry = ();	701	@$registry = ();
433		702
434	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };	703	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
…		…
443	warn "object uses attachment '$name' that is not available, postponing.\n";	712	warn "object uses attachment '$name' that is not available, postponing.\n";
444	}	713	}
445	}	714	}
446	}	715	}
447		716
448	sub object_freezer_save {	717	cf::attachable->attach (
449	my ($filename, $rdata, $objs) = @_;
450
451	if (length $$rdata) {
452	warn sprintf "saving %s (%d,%d)\n",
453	$filename, length $$rdata, scalar @$objs;
454
455	if (open my $fh, ">:raw", "$filename~") {
456	chmod SAVE_MODE, $fh;
457	syswrite $fh, $$rdata;
458	close $fh;
459
460	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
461	chmod SAVE_MODE, $fh;
462	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
463	close $fh;
464	rename "$filename.pst~", "$filename.pst";
465	} else {
466	unlink "$filename.pst";
467	}
468
469	rename "$filename~", $filename;
470	} else {
471	warn "FATAL: $filename~: $!\n";
472	}
473	} else {
474	unlink $filename;
475	unlink "$filename.pst";
476	}
477	}
478
479	sub object_freezer_as_string {
480	my ($rdata, $objs) = @_;
481
482	use Data::Dumper;
483
484	$$rdata . Dumper $objs
485	}
486
487	sub object_thawer_load {
488	my ($filename) = @_;
489
490	local $/;
491
492	my $av;
493
494	#TODO: use sysread etc.
495	if (open my $data, "<:raw:perlio", $filename) {
496	$data = <$data>;
497	if (open my $pst, "<:raw:perlio", "$filename.pst") {
498	$av = eval { (Storable::thaw <$pst>)->{objs} };
499	}
500	return ($data, $av);
501	}
502
503	()
504	}
505
506	cf::object->attach (
507	prio => -1000000,	718	prio => -1000000,
		719	on_instantiate => sub {
		720	my ($obj, $data) = @_;
		721
		722	$data = from_json $data;
		723
		724	for (@$data) {
		725	my ($name, $args) = @$_;
		726
		727	$obj->attach ($name, %{$args \|\| {} });
		728	}
		729	},
		730	on_reattach => \&reattach,
508	on_clone => sub {	731	on_clone => sub {
509	my ($src, $dst) = @_;	732	my ($src, $dst) = @_;
510		733
511	@{$dst->registry} = @{$src->registry};	734	@{$dst->registry} = @{$src->registry};
512		735
…		…
514		737
515	%{$dst->{_attachment}} = %{$src->{_attachment}}	738	%{$dst->{_attachment}} = %{$src->{_attachment}}
516	if exists $src->{_attachment};	739	if exists $src->{_attachment};
517	},	740	},
518	);	741	);
		742
		743	sub object_freezer_save {
		744	my ($filename, $rdata, $objs) = @_;
		745
		746	sync_job {
		747	if (length $$rdata) {
		748	warn sprintf "saving %s (%d,%d)\n",
		749	$filename, length $$rdata, scalar @$objs;
		750
		751	if (my $fh = aio_open "$filename~", O_WRONLY \| O_CREAT, 0600) {
		752	chmod SAVE_MODE, $fh;
		753	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		754	aio_fsync $fh;
		755	close $fh;
		756
		757	if (@$objs) {
		758	if (my $fh = aio_open "$filename.pst~", O_WRONLY \| O_CREAT, 0600) {
		759	chmod SAVE_MODE, $fh;
		760	my $data = Storable::nfreeze { version => 1, objs => $objs };
		761	aio_write $fh, 0, (length $data), $data, 0;
		762	aio_fsync $fh;
		763	close $fh;
		764	aio_rename "$filename.pst~", "$filename.pst";
		765	}
		766	} else {
		767	aio_unlink "$filename.pst";
		768	}
		769
		770	aio_rename "$filename~", $filename;
		771	} else {
		772	warn "FATAL: $filename~: $!\n";
		773	}
		774	} else {
		775	aio_unlink $filename;
		776	aio_unlink "$filename.pst";
		777	}
		778	}
		779	}
		780
		781	sub object_freezer_as_string {
		782	my ($rdata, $objs) = @_;
		783
		784	use Data::Dumper;
		785
		786	$$rdata . Dumper $objs
		787	}
		788
		789	sub object_thawer_load {
		790	my ($filename) = @_;
		791
		792	my ($data, $av);
		793
		794	(aio_load $filename, $data) >= 0
		795	or return;
		796
		797	unless (aio_stat "$filename.pst") {
		798	(aio_load "$filename.pst", $av) >= 0
		799	or return;
		800	$av = eval { (Storable::thaw <$av>)->{objs} };
		801	}
		802
		803	return ($data, $av);
		804	}
519		805
520	#############################################################################	806	#############################################################################
521	# command handling &c	807	# command handling &c
522		808
523	=item cf::register_command $name => \&callback($ob,$args);	809	=item cf::register_command $name => \&callback($ob,$args);
…		…
712		998
713	=head2 CORE EXTENSIONS	999	=head2 CORE EXTENSIONS
714		1000
715	Functions and methods that extend core crossfire objects.	1001	Functions and methods that extend core crossfire objects.
716		1002
		1003	=head3 cf::player
		1004
717	=over 4	1005	=over 4
718		1006
719	=item cf::player::exists $login	1007	=item cf::player::exists $login
720		1008
721	Returns true when the given account exists.	1009	Returns true when the given account exists.
…		…
725	sub cf::player::exists($) {	1013	sub cf::player::exists($) {
726	cf::player::find $_[0]	1014	cf::player::find $_[0]
727	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	1015	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
728	}	1016	}
729		1017
		1018	=item $player->ext_reply ($msgid, $msgtype, %msg)
		1019
		1020	Sends an ext reply to the player.
		1021
		1022	=cut
		1023
		1024	sub cf::player::ext_reply($$$%) {
		1025	my ($self, $id, %msg) = @_;
		1026
		1027	$msg{msgid} = $id;
		1028
		1029	$self->send ("ext " . to_json \%msg);
		1030	}
		1031
		1032	=back
		1033
		1034	=head3 cf::object::player
		1035
		1036	=over 4
		1037
730	=item $player_object->reply ($npc, $msg[, $flags])	1038	=item $player_object->reply ($npc, $msg[, $flags])
731		1039
732	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	1040	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
733	can be C<undef>. Does the right thing when the player is currently in a	1041	can be C<undef>. Does the right thing when the player is currently in a
734	dialogue with the given NPC character.	1042	dialogue with the given NPC character.
735		1043
736	=cut	1044	=cut
737		1045
738	# rough implementation of a future "reply" method that works	1046	# rough implementation of a future "reply" method that works
739	# with dialog boxes.	1047	# with dialog boxes.
		1048	#TODO: the first argument must go, split into a $npc->reply_to ( method
740	sub cf::object::player::reply($$$;$) {	1049	sub cf::object::player::reply($$$;$) {
741	my ($self, $npc, $msg, $flags) = @_;	1050	my ($self, $npc, $msg, $flags) = @_;
742		1051
743	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	1052	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
744		1053
…		…
748	$msg = $npc->name . " says: $msg" if $npc;	1057	$msg = $npc->name . " says: $msg" if $npc;
749	$self->message ($msg, $flags);	1058	$self->message ($msg, $flags);
750	}	1059	}
751	}	1060	}
752		1061
753	=item $player->ext_reply ($msgid, $msgtype, %msg)
754
755	Sends an ext reply to the player.
756
757	=cut
758
759	sub cf::player::ext_reply($$$%) {
760	my ($self, $id, %msg) = @_;
761
762	$msg{msgid} = $id;
763
764	$self->send ("ext " . to_json \%msg);
765	}
766
767	=item $player_object->may ("access")	1062	=item $player_object->may ("access")
768		1063
769	Returns wether the given player is authorized to access resource "access"	1064	Returns wether the given player is authorized to access resource "access"
770	(e.g. "command_wizcast").	1065	(e.g. "command_wizcast").
771		1066
…		…
778	(ref $cf::CFG{"may_$access"}	1073	(ref $cf::CFG{"may_$access"}
779	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	1074	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
780	: $cf::CFG{"may_$access"})	1075	: $cf::CFG{"may_$access"})
781	}	1076	}
782		1077
783	=cut	1078	=head3 cf::client
784		1079
785	#############################################################################	1080	=over 4
		1081
		1082	=item $client->send_drawinfo ($text, $flags)
		1083
		1084	Sends a drawinfo packet to the client. Circumvents output buffering so
		1085	should not be used under normal circumstances.
		1086
		1087	=cut
		1088
		1089	sub cf::client::send_drawinfo {
		1090	my ($self, $text, $flags) = @_;
		1091
		1092	utf8::encode $text;
		1093	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		1094	}
		1095
		1096
		1097	=item $success = $client->query ($flags, "text", \&cb)
		1098
		1099	Queues a query to the client, calling the given callback with
		1100	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		1101	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		1102
		1103	Queries can fail, so check the return code. Or don't, as queries will become
		1104	reliable at some point in the future.
		1105
		1106	=cut
		1107
		1108	sub cf::client::query {
		1109	my ($self, $flags, $text, $cb) = @_;
		1110
		1111	return unless $self->state == ST_PLAYING
		1112	\|\| $self->state == ST_SETUP
		1113	\|\| $self->state == ST_CUSTOM;
		1114
		1115	$self->state (ST_CUSTOM);
		1116
		1117	utf8::encode $text;
		1118	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		1119
		1120	$self->send_packet ($self->{query_queue}[0][0])
		1121	if @{ $self->{query_queue} } == 1;
		1122	}
		1123
		1124	cf::client->attach (
		1125	on_reply => sub {
		1126	my ($ns, $msg) = @_;
		1127
		1128	# this weird shuffling is so that direct followup queries
		1129	# get handled first
		1130	my $queue = delete $ns->{query_queue};
		1131
		1132	(shift @$queue)->[1]->($msg);
		1133
		1134	push @{ $ns->{query_queue} }, @$queue;
		1135
		1136	if (@{ $ns->{query_queue} } == @$queue) {
		1137	if (@$queue) {
		1138	$ns->send_packet ($ns->{query_queue}[0][0]);
		1139	} else {
		1140	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1141	}
		1142	}
		1143	},
		1144	);
		1145
		1146	=item $client->coro (\&cb)
		1147
		1148	Create a new coroutine, running the specified callback. The coroutine will
		1149	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1150	or loss of connection).
		1151
		1152	=cut
		1153
		1154	sub cf::client::coro {
		1155	my ($self, $cb) = @_;
		1156
		1157	my $coro; $coro = async {
		1158	eval {
		1159	$cb->();
		1160	};
		1161	warn $@ if $@;
		1162	};
		1163
		1164	$coro->on_destroy (sub {
		1165	delete $self->{_coro}{$coro+0};
		1166	});
		1167
		1168	$self->{_coro}{$coro+0} = $coro;
		1169
		1170	$coro
		1171	}
		1172
		1173	cf::client->attach (
		1174	on_destroy => sub {
		1175	my ($ns) = @_;
		1176
		1177	$_->cancel for values %{ (delete $ns->{_coro}) \|\| {} };
		1178	},
		1179	);
		1180
		1181	=back
		1182
786		1183
787	=head2 SAFE SCRIPTING	1184	=head2 SAFE SCRIPTING
788		1185
789	Functions that provide a safe environment to compile and execute	1186	Functions that provide a safe environment to compile and execute
790	snippets of perl code without them endangering the safety of the server	1187	snippets of perl code without them endangering the safety of the server
…		…
1010	local $/;	1407	local $/;
1011	*CFG = YAML::Syck::Load <$fh>;	1408	*CFG = YAML::Syck::Load <$fh>;
1012	}	1409	}
1013		1410
1014	sub main {	1411	sub main {
		1412	# we must not ever block the main coroutine
		1413	local $Coro::idle = sub {
		1414	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1415	(Coro::unblock_sub {
		1416	Event::one_event;
		1417	})->();
		1418	};
		1419
1015	cfg_load;	1420	cfg_load;
1016	db_load;	1421	db_load;
1017	load_extensions;	1422	load_extensions;
1018	Event::loop;	1423	Event::loop;
1019	}	1424	}
1020		1425
1021	#############################################################################	1426	#############################################################################
1022	# initialisation	1427	# initialisation
1023		1428
1024	sub _perl_reload(&) {	1429	sub perl_reload() {
1025	my ($msg) = @_;	1430	# can/must only be called in main
		1431	if ($Coro::current != $Coro::main) {
		1432	warn "can only reload from main coroutine\n";
		1433	return;
		1434	}
1026		1435
1027	$msg->("reloading...");	1436	warn "reloading...";
		1437
		1438	local $FREEZE = 1;
		1439	cf::emergency_save;
1028		1440
1029	eval {	1441	eval {
		1442	# if anything goes wrong in here, we should simply crash as we already saved
		1443
1030	# cancel all watchers	1444	# cancel all watchers
1031	for (Event::all_watchers) {	1445	for (Event::all_watchers) {
1032	$_->cancel if $_->data & WF_AUTOCANCEL;	1446	$_->cancel if $_->data & WF_AUTOCANCEL;
1033	}	1447	}
1034		1448
		1449	# cancel all extension coros
		1450	$_->cancel for values %EXT_CORO;
		1451	%EXT_CORO = ();
		1452
1035	# unload all extensions	1453	# unload all extensions
1036	for (@exts) {	1454	for (@exts) {
1037	$msg->("unloading <$_>");	1455	warn "unloading <$_>";
1038	unload_extension $_;	1456	unload_extension $_;
1039	}	1457	}
1040		1458
1041	# unload all modules loaded from $LIBDIR	1459	# unload all modules loaded from $LIBDIR
1042	while (my ($k, $v) = each %INC) {	1460	while (my ($k, $v) = each %INC) {
1043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1461	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1044		1462
1045	$msg->("removing <$k>");	1463	warn "removing <$k>";
1046	delete $INC{$k};	1464	delete $INC{$k};
1047		1465
1048	$k =~ s/\.pm$//;	1466	$k =~ s/\.pm$//;
1049	$k =~ s/\//::/g;	1467	$k =~ s/\//::/g;
1050		1468
…		…
1055	Symbol::delete_package $k;	1473	Symbol::delete_package $k;
1056	}	1474	}
1057		1475
1058	# sync database to disk	1476	# sync database to disk
1059	cf::db_sync;	1477	cf::db_sync;
		1478	IO::AIO::flush;
1060		1479
1061	# get rid of safe::, as good as possible	1480	# get rid of safe::, as good as possible
1062	Symbol::delete_package "safe::$_"	1481	Symbol::delete_package "safe::$_"
1063	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1482	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1064		1483
1065	# remove register_script_function callbacks	1484	# remove register_script_function callbacks
1066	# TODO	1485	# TODO
1067		1486
1068	# unload cf.pm "a bit"	1487	# unload cf.pm "a bit"
…		…
1071	# don't, removes xs symbols, too,	1490	# don't, removes xs symbols, too,
1072	# and global variables created in xs	1491	# and global variables created in xs
1073	#Symbol::delete_package __PACKAGE__;	1492	#Symbol::delete_package __PACKAGE__;
1074		1493
1075	# reload cf.pm	1494	# reload cf.pm
1076	$msg->("reloading cf.pm");	1495	warn "reloading cf.pm";
1077	require cf;	1496	require cf;
		1497	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1078		1498
1079	# load config and database again	1499	# load config and database again
1080	cf::cfg_load;	1500	cf::cfg_load;
1081	cf::db_load;	1501	cf::db_load;
1082		1502
1083	# load extensions	1503	# load extensions
1084	$msg->("load extensions");	1504	warn "load extensions";
1085	cf::load_extensions;	1505	cf::load_extensions;
1086		1506
1087	# reattach attachments to objects	1507	# reattach attachments to objects
1088	$msg->("reattach");	1508	warn "reattach";
1089	_global_reattach;	1509	_global_reattach;
1090	};	1510	};
1091	$msg->($@) if $@;
1092		1511
1093	$msg->("reloaded");	1512	if ($@) {
		1513	warn $@;
		1514	warn "error while reloading, exiting.";
		1515	exit 1;
		1516	}
		1517
		1518	warn "reloaded successfully";
1094	};	1519	};
1095		1520
1096	sub perl_reload() {	1521	#############################################################################
1097	_perl_reload {	1522
1098	warn $_[0];	1523	unless ($LINK_MAP) {
1099	print "$_[0]\n";	1524	$LINK_MAP = cf::map::new;
1100	};	1525
		1526	$LINK_MAP->width (41);
		1527	$LINK_MAP->height (41);
		1528	$LINK_MAP->alloc;
		1529	$LINK_MAP->path ("{link}");
		1530	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
		1531	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1101	}	1532	}
1102		1533
1103	register "<global>", __PACKAGE__;	1534	register "<global>", __PACKAGE__;
1104		1535
1105	register_command "perl-reload" => sub {	1536	register_command "perl-reload" => sub {
1106	my ($who, $arg) = @_;	1537	my ($who, $arg) = @_;
1107		1538
1108	if ($who->flag (FLAG_WIZ)) {	1539	if ($who->flag (FLAG_WIZ)) {
		1540	$who->message ("start of reload.");
1109	_perl_reload {	1541	perl_reload;
1110	warn $_[0];	1542	$who->message ("end of reload.");
1111	$who->message ($_[0]);
1112	};
1113	}	1543	}
1114	};	1544	};
1115		1545
1116	unshift @INC, $LIBDIR;	1546	unshift @INC, $LIBDIR;
1117		1547
1118	$TICK_WATCHER = Event->timer (	1548	$TICK_WATCHER = Event->timer (
		1549	reentrant => 0,
1119	prio => 0,	1550	prio => 0,
1120	at => $NEXT_TICK \|\| 1,	1551	at => $NEXT_TICK \|\| $TICK,
1121	data => WF_AUTOCANCEL,	1552	data => WF_AUTOCANCEL,
1122	cb => sub {	1553	cb => sub {
		1554	unless ($FREEZE) {
1123	cf::server_tick; # one server iteration	1555	cf::server_tick; # one server iteration
		1556	$RUNTIME += $TICK;
		1557	}
1124		1558
1125	my $NOW = Event::time;
1126	$NEXT_TICK += $TICK;	1559	$NEXT_TICK += $TICK;
1127		1560
1128	# if we are delayed by four ticks or more, skip them all	1561	# if we are delayed by four ticks or more, skip them all
1129	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1562	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1130		1563
1131	$TICK_WATCHER->at ($NEXT_TICK);	1564	$TICK_WATCHER->at ($NEXT_TICK);
1132	$TICK_WATCHER->start;	1565	$TICK_WATCHER->start;
1133	},	1566	},
1134	);	1567	);
1135		1568
1136	IO::AIO::max_poll_time $TICK * 0.2;	1569	IO::AIO::max_poll_time $TICK * 0.2;
1137		1570
		1571	Event->io (
1138	Event->io (fd => IO::AIO::poll_fileno,	1572	fd => IO::AIO::poll_fileno,
1139	poll => 'r',	1573	poll => 'r',
1140	prio => 5,	1574	prio => 5,
1141	data => WF_AUTOCANCEL,	1575	data => WF_AUTOCANCEL,
1142	cb => \&IO::AIO::poll_cb);	1576	cb => \&IO::AIO::poll_cb,
		1577	);
		1578
		1579	Event->timer (
		1580	data => WF_AUTOCANCEL,
		1581	after => 0,
		1582	interval => 10,
		1583	cb => sub {
		1584	(Coro::unblock_sub {
		1585	write_runtime
		1586	or warn "ERROR: unable to write runtime file: $!";
		1587	})->();
		1588	},
		1589	);
1143		1590
1144	1	1591	1
1145		1592

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs. Revision 1.109 by root, Sun Dec 31 22:23:12 2006 UTC

Diff Legend

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs.
Revision 1.109 by root, Sun Dec 31 22:23:12 2006 UTC