Commit | Line | Data |
---|---|---|
0a46062b | 1 | /* |
ccd7e1c8 | 2 | * float.c |
0a46062b | 3 | * |
ccd7e1c8 | 4 | * BabelTrace - Float Type Converter |
0a46062b | 5 | * |
c054553d | 6 | * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
0a46062b | 7 | * |
ccd7e1c8 MD |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
0a46062b | 14 | * |
ccd7e1c8 MD |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
0a46062b MD |
17 | */ |
18 | ||
19 | #include <babeltrace/compiler.h> | |
4c8bfb7e | 20 | #include <babeltrace/format.h> |
809cbff5 | 21 | #include <endian.h> |
0a46062b | 22 | |
c054553d | 23 | static |
f6625916 | 24 | struct definition *_float_definition_new(struct declaration *declaration, |
05c749e5 MD |
25 | struct definition_scope *parent_scope, |
26 | GQuark field_name, int index); | |
c054553d | 27 | static |
e1151715 | 28 | void _float_definition_free(struct definition *definition); |
c054553d | 29 | |
c054553d | 30 | static |
f6625916 | 31 | void _float_declaration_free(struct declaration *declaration) |
90b676d7 | 32 | { |
f6625916 MD |
33 | struct declaration_float *float_declaration = |
34 | container_of(declaration, struct declaration_float, p); | |
c054553d | 35 | |
f6625916 MD |
36 | declaration_unref(&float_declaration->exp->p); |
37 | declaration_unref(&float_declaration->mantissa->p); | |
38 | declaration_unref(&float_declaration->sign->p); | |
39 | g_free(float_declaration); | |
90b676d7 MD |
40 | } |
41 | ||
f6625916 | 42 | struct declaration_float * |
add40b62 | 43 | float_declaration_new(size_t mantissa_len, |
e19c3d69 | 44 | size_t exp_len, int byte_order, size_t alignment) |
0a46062b | 45 | { |
f6625916 MD |
46 | struct declaration_float *float_declaration; |
47 | struct declaration *declaration; | |
0a46062b | 48 | |
f6625916 MD |
49 | float_declaration = g_new(struct declaration_float, 1); |
50 | declaration = &float_declaration->p; | |
51 | declaration->id = CTF_TYPE_FLOAT; | |
f6625916 | 52 | declaration->alignment = alignment; |
f6625916 MD |
53 | declaration->declaration_free = _float_declaration_free; |
54 | declaration->definition_new = _float_definition_new; | |
55 | declaration->definition_free = _float_definition_free; | |
56 | declaration->ref = 1; | |
57 | float_declaration->byte_order = byte_order; | |
e19c3d69 | 58 | |
add40b62 | 59 | float_declaration->sign = integer_declaration_new(1, |
e19c3d69 | 60 | byte_order, false, 1); |
add40b62 | 61 | float_declaration->mantissa = integer_declaration_new(mantissa_len - 1, |
e19c3d69 | 62 | byte_order, false, 1); |
add40b62 | 63 | float_declaration->exp = integer_declaration_new(exp_len, |
e19c3d69 | 64 | byte_order, true, 1); |
f6625916 | 65 | return float_declaration; |
0a46062b | 66 | } |
c054553d MD |
67 | |
68 | static | |
e1151715 | 69 | struct definition * |
f6625916 | 70 | _float_definition_new(struct declaration *declaration, |
05c749e5 MD |
71 | struct definition_scope *parent_scope, |
72 | GQuark field_name, int index) | |
c054553d | 73 | { |
f6625916 MD |
74 | struct declaration_float *float_declaration = |
75 | container_of(declaration, struct declaration_float, p); | |
e1151715 | 76 | struct definition_float *_float; |
d11e9c49 | 77 | struct definition *tmp; |
c054553d | 78 | |
e1151715 | 79 | _float = g_new(struct definition_float, 1); |
f6625916 | 80 | declaration_ref(&float_declaration->p); |
05c749e5 MD |
81 | _float->p.declaration = declaration; |
82 | _float->declaration = float_declaration; | |
d11e9c49 MD |
83 | if (float_declaration->byte_order == LITTLE_ENDIAN) { |
84 | tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p, | |
85 | parent_scope, g_quark_from_static_string("mantissa"), 0); | |
86 | _float->mantissa = container_of(tmp, struct definition_integer, p); | |
87 | tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p, | |
88 | parent_scope, g_quark_from_static_string("exp"), 1); | |
89 | _float->exp = container_of(tmp, struct definition_integer, p); | |
90 | tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p, | |
91 | parent_scope, g_quark_from_static_string("sign"), 2); | |
92 | _float->sign = container_of(tmp, struct definition_integer, p); | |
93 | } else { | |
94 | tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p, | |
95 | parent_scope, g_quark_from_static_string("sign"), 0); | |
96 | _float->sign = container_of(tmp, struct definition_integer, p); | |
97 | tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p, | |
98 | parent_scope, g_quark_from_static_string("exp"), 1); | |
99 | _float->exp = container_of(tmp, struct definition_integer, p); | |
100 | tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p, | |
101 | parent_scope, g_quark_from_static_string("mantissa"), 2); | |
102 | _float->mantissa = container_of(tmp, struct definition_integer, p); | |
103 | } | |
c054553d | 104 | _float->p.ref = 1; |
05c749e5 | 105 | _float->p.index = index; |
c054553d MD |
106 | _float->value = 0.0; |
107 | return &_float->p; | |
108 | } | |
109 | ||
110 | static | |
e1151715 | 111 | void _float_definition_free(struct definition *definition) |
c054553d | 112 | { |
e1151715 MD |
113 | struct definition_float *_float = |
114 | container_of(definition, struct definition_float, p); | |
c054553d | 115 | |
d11e9c49 MD |
116 | definition_unref(&_float->sign->p); |
117 | definition_unref(&_float->exp->p); | |
118 | definition_unref(&_float->mantissa->p); | |
f6625916 | 119 | declaration_unref(_float->p.declaration); |
c054553d MD |
120 | g_free(_float); |
121 | } |