server/lib/cf.pm

package cf;

use Symbol;
use List::Util;
use Storable;

use strict;

our %COMMAND;
our @EVENT;
our %PROP_TYPE;
our %PROP_IDX;

BEGIN {
   @EVENT = map lc, @EVENT;

   *CORE::GLOBAL::warn = sub {
      my $msg = join "", @_;
      $msg .= "\n"
         unless $msg =~ /\n$/;

      print STDERR "cfperl: $msg";
      LOG llevError, "cfperl: $msg";
   };
}

my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!

# generate property mutators
sub prop_gen {
   my ($prefix, $class) = @_;

   no strict 'refs';

   for my $prop (keys %PROP_TYPE) {
      $prop =~ /^\Q$prefix\E_(.*$)/ or next;
      my $sub = lc $1;

      my $type = $PROP_TYPE{$prop};
      my $idx  = $PROP_IDX {$prop};

      *{"$class\::get_$sub"} = *{"$class\::$sub"} = sub {
         $_[0]->get_property ($type, $idx)
      };

      *{"$class\::set_$sub"} = sub {
         $_[0]->set_property ($type, $idx, $_[1]);
      } unless $ignore_set{$prop};
   }
}

# auto-generate most of the API

prop_gen OBJECT_PROP => "cf::object";
# CFAPI_OBJECT_ANIMATION?
prop_gen PLAYER_PROP => "cf::object::player";

prop_gen MAP_PROP    => "cf::map";
prop_gen ARCH_PROP   => "cf::arch";

# guessed hierarchies

@cf::object::player::ISA = 'cf::object';
@cf::object::map::ISA    = 'cf::object';

my %ext_pkg;
my @exts;
my @hook;
my %command;
my %extcmd;

sub inject_event {
   my $extension = shift;
   my $event_code = shift;

   my $cb = $hook[$event_code]{$extension}
      or return;

   &$cb
}

sub inject_global_event {
   my $event = shift;

   my $cb = $hook[$event]
      or return;

   List::Util::max map &$_, values %$cb
}

sub inject_command {
   my ($name, $obj, $params) = @_;

   for my $cmd (@{ $command{$name} }) {
      $cmd->[1]->($obj, $params);
   }

   -1
}

sub register_command {
   my ($name, $time, $cb) = @_;

   my $caller = caller;
   #warn "registering command '$name/$time' to '$caller'";

   push @{ $command{$name} }, [$time, $cb, $caller];
   $COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
}

sub register_extcmd {
   my ($name, $cb) = @_;

   my $caller = caller;
   #warn "registering extcmd '$name' to '$caller'";

   $extcmd{$name} = [$cb, $caller];
}

sub register {
   my ($base, $pkg) = @_;

   for my $idx (0 .. $#EVENT) {
      if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
         #warn "registering $EVENT[$idx] hook to '$pkg'\n";
         $hook[$idx]{$base} = $ref;
      }
   }
}

sub load_extension {
   my ($path) = @_;

   $path =~ /([^\/\\]+)\.ext$/ or die "$path";
   my $base = $1;
   my $pkg = $1;
   $pkg =~ s/[^[:word:]]/_/g;
   $pkg = "cf::ext::$pkg";

   warn "loading '$path' into '$pkg'\n";

   open my $fh, "<:utf8", $path
      or die "$path: $!";

   my $source =
      "package $pkg; use strict; use utf8;\n"
      . "#line 1 \"$path\"\n{\n"
      . (do { local $/; <$fh> })
      . "\n};\n1";

   eval $source
      or die "$path: $@";

   push @exts, $pkg;
   $ext_pkg{$base} = $pkg;

#   no strict 'refs';
#   @{"$pkg\::ISA"} = cf::ext::;

   register $base, $pkg;
}

sub unload_extension {
   my ($pkg) = @_;

   warn "removing extension $pkg\n";

   # remove hooks
   for my $idx (0 .. $#EVENT) {
      delete $hook[$idx]{$pkg};
   }

   # remove commands
   for my $name (keys %command) {
      my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };

      if (@cb) {
         $command{$name} = \@cb;
         $COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
      } else {
         delete $command{$name};
         delete $COMMAND{"$name\000"};
      }
   }

   # remove extcmds
   for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
      delete $extcmd{$name};
   }

   Symbol::delete_package $pkg;
}

sub load_extensions {
   my $LIBDIR = maps_directory "perl";

   for my $ext (<$LIBDIR/*.ext>) {
      next unless -r $ext;
      eval {
         load_extension $ext;
         1
      } or warn "$ext not loaded: $@";
   }
}

register_command "perl-reload", 0, sub {
   my ($who, $arg) = @_;

   if ($who->flag (FLAG_WIZ)) {
      $who->message ("reloading...");

      warn "reloading...\n";
      eval {
         unload_extension $_ for @exts;
         delete $INC{"cf.pm"};

         # don't, removes xs symbols, too
         #Symbol::delete_package $pkg;

         require cf;
      };
      warn $@ if $@;
      $who->message ($@) if $@;
      warn "reloaded\n";

      $who->message ("reloaded");
   } else {
      $who->message ("Intruder Alert!");
   }
};

#############################################################################
# extcmd framework, basically convert ext <id> <pkg> arg1 args
# into pkg::->on_extcmd_arg1 (...) while shortcutting a few

sub on_extcmd {
   my ($pl, $buf) = @_;

   my ($type) = $buf =~ s/^(\S+) // ? $1 : "";

   $extcmd{$type}[0]->($pl, $buf)
      if $extcmd{$type};
}

#############################################################################
# load/save/clean perl data associated with a map

*on_mapclean = sub {
   my ($map) = @_;

   my $path = $map->tmpname;
   defined $path or return;

   unlink "$path.cfperl";
};

*on_mapin =
*on_mapload = sub {
   my ($map) = @_;

   my $path = $map->tmpname;
   $path = $map->path unless defined $path;

   open my $fh, "<:raw", "$path.cfperl"
      or return; # no perl data

   my $data = Storable::thaw do { local $/; <$fh> };

   $data->{version} <= 1
      or return; # too new

   $map->_set_obs ($data->{obs});
};

*on_mapout = sub {
   my ($map) = @_;

   my $path = $map->tmpname;
   $path = $map->path unless defined $path;

   my $obs = $map->_get_obs;

   if (defined $obs) {
      open my $fh, ">:raw", "$path.cfperl"
         or die "$path.cfperl: $!";

      stat $path;

      print $fh Storable::nfreeze {
         size    => (stat _)[7],
         time    => (stat _)[9],
         version => 1,
         obs     => $obs,
      };

      chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible *g*
   } else {
      unlink "$path.cfperl";
   }
};

#############################################################################
# load/save perl data associated with player->ob objects

*on_player_load = sub {
   my ($ob, $path) = @_;

   if (open my $fh, "<:raw", "$path.cfperl") {

      #d##TODO#remove

      my $data = Storable::thaw do { local $/; <$fh> };

      $data->{version} <= 1
         or return; # too new

      %$ob = %{$data->{ob}};
      return;
   }

   for my $o ($ob, $ob->inv) {
      if (my $value = $o->get_ob_key_value ("_perl_data")) {
         $o->set_ob_key_value ("_perl_data");

         %$o = %{ Storable::thaw pack "H*", $value };
      }
   }
};

*on_player_save = sub {
   my ($ob, $path) = @_;

   $_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
      for grep %$_, $ob, $ob->inv;

   unlink "$path.cfperl";#d##TODO#remove
};

register "<global>", __PACKAGE__;

unshift @INC, maps_directory "perl";

load_extensions;

1

Revision:	1.17
Committed:	Mon Jun 19 10:20:07 2006 UTC (17 years, 11 months ago) by root
Branch:	MAIN
Changes since 1.16:	+2 -0 lines
Log Message:	put maps/perl/ into perl lib path
#	User	Rev	Content
1	root	1.1	package cf;
2
3			use Symbol;
4			use List::Util;
5	root	1.6	use Storable;
6	root	1.1
7			use strict;
8
9			our %COMMAND;
10			our @EVENT;
11			our %PROP_TYPE;
12			our %PROP_IDX;
13
14			BEGIN {
15			@EVENT = map lc, @EVENT;
16
17			*CORE::GLOBAL::warn = sub {
18			my $msg = join "", @_;
19			$msg .= "\n"
20			unless $msg =~ /\n$/;
21
22			print STDERR "cfperl: $msg";
23			LOG llevError, "cfperl: $msg";
24			};
25			}
26
27	root	1.9	my %ignore_set = (MAP_PROP_PATH => 1); # I hate the plug-in api. Deeply!
28
29	root	1.1	# generate property mutators
30			sub prop_gen {
31			my ($prefix, $class) = @_;
32
33			no strict 'refs';
34
35			for my $prop (keys %PROP_TYPE) {
36			$prop =~ /^\Q$prefix\E_(.*$)/ or next;
37			my $sub = lc $1;
38
39			my $type = $PROP_TYPE{$prop};
40			my $idx = $PROP_IDX {$prop};
41
42			{"$class\::get_$sub"} = {"$class\::$sub"} = sub {
43			$_[0]->get_property ($type, $idx)
44			};
45
46			*{"$class\::set_$sub"} = sub {
47			$_[0]->set_property ($type, $idx, $_[1]);
48	root	1.9	} unless $ignore_set{$prop};
49	root	1.1	}
50			}
51
52			# auto-generate most of the API
53
54			prop_gen OBJECT_PROP => "cf::object";
55			# CFAPI_OBJECT_ANIMATION?
56			prop_gen PLAYER_PROP => "cf::object::player";
57
58			prop_gen MAP_PROP => "cf::map";
59			prop_gen ARCH_PROP => "cf::arch";
60
61			# guessed hierarchies
62
63			@cf::object::player::ISA = 'cf::object';
64			@cf::object::map::ISA = 'cf::object';
65
66	root	1.5	my %ext_pkg;
67	root	1.1	my @exts;
68			my @hook;
69			my %command;
70	root	1.15	my %extcmd;
71	root	1.1
72			sub inject_event {
73	root	1.14	my $extension = shift;
74			my $event_code = shift;
75	root	1.1
76	root	1.14	my $cb = $hook[$event_code]{$extension}
77	root	1.5	or return;
78
79	root	1.14	&$cb
80	root	1.5	}
81
82			sub inject_global_event {
83	root	1.12	my $event = shift;
84	root	1.5
85	root	1.12	my $cb = $hook[$event]
86	root	1.1	or return;
87
88	root	1.12	List::Util::max map &$_, values %$cb
89	root	1.1	}
90
91			sub inject_command {
92			my ($name, $obj, $params) = @_;
93
94			for my $cmd (@{ $command{$name} }) {
95			$cmd->[1]->($obj, $params);
96			}
97
98			-1
99			}
100
101			sub register_command {
102			my ($name, $time, $cb) = @_;
103
104			my $caller = caller;
105	root	1.16	#warn "registering command '$name/$time' to '$caller'";
106	root	1.4
107	root	1.1	push @{ $command{$name} }, [$time, $cb, $caller];
108			$COMMAND{"$name\000"} = List::Util::max map $_->[0], @{ $command{$name} };
109			}
110
111	root	1.16	sub register_extcmd {
112			my ($name, $cb) = @_;
113
114			my $caller = caller;
115			#warn "registering extcmd '$name' to '$caller'";
116
117			$extcmd{$name} = [$cb, $caller];
118			}
119
120	root	1.6	sub register {
121			my ($base, $pkg) = @_;
122
123			for my $idx (0 .. $#EVENT) {
124			if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {
125	root	1.16	#warn "registering $EVENT[$idx] hook to '$pkg'\n";
126	root	1.6	$hook[$idx]{$base} = $ref;
127			}
128			}
129			}
130
131	root	1.1	sub load_extension {
132			my ($path) = @_;
133
134			$path =~ /([^\/\\]+)\.ext$/ or die "$path";
135	root	1.5	my $base = $1;
136	root	1.1	my $pkg = $1;
137			$pkg =~ s/[^[:word:]]/_/g;
138			$pkg = "cf::ext::$pkg";
139
140			warn "loading '$path' into '$pkg'\n";
141
142			open my $fh, "<:utf8", $path
143			or die "$path: $!";
144
145			my $source =
146			"package $pkg; use strict; use utf8;\n"
147			. "#line 1 \"$path\"\n{\n"
148			. (do { local $/; <$fh> })
149			. "\n};\n1";
150
151			eval $source
152			or die "$path: $@";
153
154			push @exts, $pkg;
155	root	1.5	$ext_pkg{$base} = $pkg;
156	root	1.1
157	root	1.6	# no strict 'refs';
158	root	1.1	# @{"$pkg\::ISA"} = cf::ext::;
159
160	root	1.6	register $base, $pkg;
161	root	1.1	}
162
163			sub unload_extension {
164			my ($pkg) = @_;
165
166			warn "removing extension $pkg\n";
167
168			# remove hooks
169			for my $idx (0 .. $#EVENT) {
170			delete $hook[$idx]{$pkg};
171			}
172
173			# remove commands
174			for my $name (keys %command) {
175			my @cb = grep $_->[2] ne $pkg, @{ $command{$name} };
176
177			if (@cb) {
178			$command{$name} = \@cb;
179			$COMMAND{"$name\000"} = List::Util::max map $_->[0], @cb;
180			} else {
181			delete $command{$name};
182			delete $COMMAND{"$name\000"};
183			}
184			}
185
186	root	1.15	# remove extcmds
187	root	1.16	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
188			delete $extcmd{$name};
189	root	1.15	}
190
191	root	1.1	Symbol::delete_package $pkg;
192			}
193
194			sub load_extensions {
195			my $LIBDIR = maps_directory "perl";
196
197			for my $ext (<$LIBDIR/*.ext>) {
198	root	1.3	next unless -r $ext;
199	root	1.2	eval {
200			load_extension $ext;
201			1
202			} or warn "$ext not loaded: $@";
203	root	1.1	}
204			}
205
206			register_command "perl-reload", 0, sub {
207			my ($who, $arg) = @_;
208
209			if ($who->flag (FLAG_WIZ)) {
210	root	1.3	$who->message ("reloading...");
211
212	root	1.1	warn "reloading...\n";
213	root	1.4	eval {
214			unload_extension $_ for @exts;
215			delete $INC{"cf.pm"};
216
217			# don't, removes xs symbols, too
218			#Symbol::delete_package $pkg;
219
220			require cf;
221			};
222			warn $@ if $@;
223			$who->message ($@) if $@;
224	root	1.1	warn "reloaded\n";
225	root	1.3
226			$who->message ("reloaded");
227			} else {
228			$who->message ("Intruder Alert!");
229	root	1.1	}
230			};
231
232	root	1.8	#############################################################################
233	root	1.15	# extcmd framework, basically convert ext <id> <pkg> arg1 args
234			# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
235
236			sub on_extcmd {
237			my ($pl, $buf) = @_;
238
239	root	1.16	my ($type) = $buf =~ s/^(\S+) // ? $1 : "";
240	root	1.15
241	root	1.16	$extcmd{$type}[0]->($pl, $buf)
242			if $extcmd{$type};
243	root	1.15	}
244
245			#############################################################################
246	root	1.8	# load/save/clean perl data associated with a map
247
248	root	1.7	*on_mapclean = sub {
249	root	1.13	my ($map) = @_;
250	root	1.7
251			my $path = $map->tmpname;
252			defined $path or return;
253
254			unlink "$path.cfperl";
255			};
256
257	root	1.6	*on_mapin =
258			*on_mapload = sub {
259	root	1.13	my ($map) = @_;
260	root	1.6
261			my $path = $map->tmpname;
262			$path = $map->path unless defined $path;
263
264			open my $fh, "<:raw", "$path.cfperl"
265			or return; # no perl data
266
267			my $data = Storable::thaw do { local $/; <$fh> };
268
269			$data->{version} <= 1
270			or return; # too new
271
272			$map->_set_obs ($data->{obs});
273			};
274
275			*on_mapout = sub {
276	root	1.13	my ($map) = @_;
277	root	1.6
278			my $path = $map->tmpname;
279			$path = $map->path unless defined $path;
280
281			my $obs = $map->_get_obs;
282
283			if (defined $obs) {
284			open my $fh, ">:raw", "$path.cfperl"
285			or die "$path.cfperl: $!";
286
287	root	1.8	stat $path;
288
289			print $fh Storable::nfreeze {
290			size => (stat _)[7],
291			time => (stat _)[9],
292			version => 1,
293			obs => $obs,
294			};
295
296			chmod SAVE_MODE, "$path.cfperl"; # very racy, but cf-compatible g
297			} else {
298			unlink "$path.cfperl";
299			}
300			};
301
302			#############################################################################
303			# load/save perl data associated with player->ob objects
304
305			*on_player_load = sub {
306	root	1.13	my ($ob, $path) = @_;
307	root	1.8
308	root	1.11	if (open my $fh, "<:raw", "$path.cfperl") {
309	root	1.8
310	root	1.11	#d##TODO#remove
311	root	1.8
312	root	1.11	my $data = Storable::thaw do { local $/; <$fh> };
313	root	1.8
314	root	1.11	$data->{version} <= 1
315			or return; # too new
316
317			%$ob = %{$data->{ob}};
318			return;
319			}
320
321			for my $o ($ob, $ob->inv) {
322			if (my $value = $o->get_ob_key_value ("_perl_data")) {
323			$o->set_ob_key_value ("_perl_data");
324
325			%$o = %{ Storable::thaw pack "H*", $value };
326			}
327			}
328	root	1.8	};
329
330			*on_player_save = sub {
331	root	1.13	my ($ob, $path) = @_;
332	root	1.8
333	root	1.11	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
334			for grep %$_, $ob, $ob->inv;
335
336			unlink "$path.cfperl";#d##TODO#remove
337	root	1.6	};
338
339			register "<global>", __PACKAGE__;
340
341	root	1.17	unshift @INC, maps_directory "perl";
342
343	root	1.1	load_extensions;
344
345			1
346