1 | #!/usr/bin/perl |
1 | #!/usr/bin/perl |
2 | |
2 | |
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3 | use strict; |
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4 | |
3 | print <<EOF; |
5 | print <<EOF; |
4 | // THIS IS A GENERATED FILE, RUN callback.pl to regenerate it |
6 | // THIS IS A GENERATED FILE: RUN callback.pl to regenerate it |
5 | // THIS IS A GENERATED FILE, RUN callback.pl to regenerate it |
7 | // THIS IS A GENERATED FILE: callback.pl is part of the GVPE |
6 | // THIS IS A GENERATED FILE, RUN callback.pl to regenerate it |
8 | // THIS IS A GENERATED FILE: distribution. |
7 | // THIS IS A GENERATED FILE, RUN callback.pl to regenerate it |
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8 | // THIS IS A GENERATED FILE, RUN callback.pl to regenerate it |
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9 | // THIS IS A GENERATED FILE, RUN callback.pl to regenerate it |
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10 | |
9 | |
11 | /* |
10 | /* |
12 | callback.h -- C++ callback mechanism |
11 | * callback.h -- C++ callback mechanism |
13 | Copyright (C) 2003 Marc Lehmann <pcg\@goof.com> |
12 | * Copyright (C) 2003-2008 Marc Lehmann <pcg\@goof.com> |
14 | |
13 | * |
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14 | * This file is part of GVPE. |
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15 | * |
15 | This program is free software; you can redistribute it and/or modify |
16 | * This program is free software; you can redistribute it and/or modify it |
16 | it under the terms of the GNU General Public License as published by |
17 | * under the terms of the GNU General Public License as published by the |
17 | the Free Software Foundation; either version 2 of the License, or |
18 | * Free Software Foundation; either version 3 of the License, or (at your |
18 | (at your option) any later version. |
19 | * option) any later version. |
19 | |
20 | * |
20 | This program is distributed in the hope that it will be useful, |
21 | * This program is distributed in the hope that it will be useful, but |
21 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
22 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
22 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
23 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General |
23 | GNU General Public License for more details. |
24 | * Public License for more details. |
24 | |
25 | * |
25 | You should have received a copy of the GNU General Public License |
26 | * You should have received a copy of the GNU General Public License along |
26 | along with this program; if not, write to the Free Software |
27 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
27 | Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
28 | * |
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29 | * Additional permission under GNU GPL version 3 section 7 |
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30 | * |
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31 | * If you modify this Program, or any covered work, by linking or |
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32 | * combining it with the OpenSSL project's OpenSSL library (or a modified |
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33 | * version of that library), containing parts covered by the terms of the |
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34 | * OpenSSL or SSLeay licenses, the licensors of this Program grant you |
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35 | * additional permission to convey the resulting work. Corresponding |
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36 | * Source for a non-source form of such a combination shall include the |
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37 | * source code for the parts of OpenSSL used as well as that of the |
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38 | * covered work. |
28 | */ |
39 | */ |
29 | |
40 | |
30 | #ifndef CALLBACK_H__ |
41 | #ifndef CALLBACK_H__ |
31 | #define CALLBACK_H__ |
42 | #define CALLBACK_H__ |
32 | |
43 | |
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44 | #define CALLBACK_H_VERSION 3 |
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45 | |
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46 | template<typename signature> |
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47 | struct callback; |
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48 | |
33 | EOF |
49 | EOF |
34 | |
50 | |
35 | for my $a (0..7) { |
51 | for my $a (0..10) { |
36 | my $CLASS = join "", map ", class A$_", 1..$a; |
52 | my $CLASS = join "", map ", class A$_", 1..$a; |
37 | my $TYPE = join ", ", map "A$_", 1..$a; |
53 | my $TYPE = join ", ", map "A$_", 1..$a; |
38 | my $ARG = join ", ", map "a$_", 1..$a; |
54 | my $ARG = join ", ", map "a$_", 1..$a; |
39 | my $TYPEARG = join ", ", map "A$_ a$_", 1..$a; |
55 | my $TYPEARG = join ", ", map "A$_ a$_", 1..$a; |
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56 | my $TYPEDEFS = join " ", map "typedef A$_ arg$_\_type;", 1..$a; |
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57 | my $TYPEvoid = $TYPE ? $TYPE : "void"; |
40 | my $_ARG = $ARG ? ", $ARG" : ""; |
58 | my $_ARG = $ARG ? ", $ARG" : ""; |
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59 | my $_TYPE = $TYPE ? ", $TYPE" : ""; |
41 | my $_TYPEARG = $TYPEARG ? ", $TYPEARG" : ""; |
60 | my $_TYPEARG = $TYPEARG ? ", $TYPEARG" : ""; |
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61 | my $_TTYPE = $a ? join "", map ", typename T::arg$_\_type", 1..$a : ""; |
42 | |
62 | |
43 | print <<EOF; |
63 | print <<EOF; |
44 | template<class R$CLASS> |
64 | template<class R$CLASS> |
45 | class callback$a { |
65 | struct callback<R ($TYPE)> |
46 | struct object { }; |
66 | { |
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67 | typedef R (*ptr_type)(void *self$_TYPE); |
47 | |
68 | |
48 | void *obj; |
69 | template<class K, R (K::*method)($TYPE)> |
49 | R (object::*meth)($TYPE); |
70 | void set (K *object) |
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71 | { |
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72 | self = object; |
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73 | func = thunk<K, method>; |
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74 | } |
50 | |
75 | |
51 | /* a proxy is a kind of recipe on how to call a specific class method */ |
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52 | struct proxy_base { |
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53 | virtual R call (void *obj, R (object::*meth)($TYPE)$_TYPEARG) = 0; |
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54 | }; |
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55 | template<class O1, class O2> |
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56 | struct proxy : proxy_base { |
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57 | virtual R call (void *obj, R (object::*meth)($TYPE)$_TYPEARG) |
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58 | { |
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59 | ((reinterpret_cast<O1 *>(obj)) ->* (reinterpret_cast<R (O2::*)($TYPE)>(meth))) |
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60 | ($ARG); |
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61 | } |
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62 | }; |
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63 | |
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64 | proxy_base *prxy; |
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65 | |
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66 | public: |
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67 | template<class O1, class O2> |
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68 | callback$a (O1 *object, R (O2::*method)($TYPE)) |
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69 | { |
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70 | static proxy<O1,O2> p; |
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71 | obj = reinterpret_cast<void *>(object); |
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72 | meth = reinterpret_cast<R (object::*)($TYPE)>(method); |
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73 | prxy = &p; |
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74 | } |
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75 | |
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76 | R call($TYPEARG) const |
76 | R call ($TYPEARG) const |
77 | { |
77 | { |
78 | return prxy->call (obj, meth$_ARG); |
78 | return func (self$_ARG); |
79 | } |
79 | } |
80 | |
80 | |
81 | R operator ()($TYPEARG) const |
81 | R operator ()($TYPEARG) const |
82 | { |
82 | { |
83 | return call ($ARG); |
83 | return call ($ARG); |
84 | } |
84 | } |
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85 | |
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86 | private: |
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87 | |
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88 | void *self; |
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89 | ptr_type func; |
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90 | |
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91 | template<class klass, R (klass::*method)($TYPE)> |
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92 | static R thunk (void *self$_TYPEARG) |
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93 | { |
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94 | klass *obj = static_cast<klass *>(self); |
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95 | return (obj->*method) ($ARG); |
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96 | } |
85 | }; |
97 | }; |
86 | |
98 | |
87 | EOF |
99 | EOF |
88 | } |
100 | } |
89 | |
101 | |
90 | print <<EOF |
102 | print <<EOF |
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103 | |
91 | #endif |
104 | #endif |
92 | EOF |
105 | EOF |
93 | |
106 | |