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 | 25 | struct definition_scope *parent_scope, |
98df1c9f MD |
26 | GQuark field_name, int index, |
27 | const char *root_name); | |
c054553d | 28 | static |
e1151715 | 29 | void _float_definition_free(struct definition *definition); |
c054553d | 30 | |
c054553d | 31 | static |
f6625916 | 32 | void _float_declaration_free(struct declaration *declaration) |
90b676d7 | 33 | { |
f6625916 MD |
34 | struct declaration_float *float_declaration = |
35 | container_of(declaration, struct declaration_float, p); | |
c054553d | 36 | |
f6625916 MD |
37 | declaration_unref(&float_declaration->exp->p); |
38 | declaration_unref(&float_declaration->mantissa->p); | |
39 | declaration_unref(&float_declaration->sign->p); | |
40 | g_free(float_declaration); | |
90b676d7 MD |
41 | } |
42 | ||
f6625916 | 43 | struct declaration_float * |
add40b62 | 44 | float_declaration_new(size_t mantissa_len, |
e19c3d69 | 45 | size_t exp_len, int byte_order, size_t alignment) |
0a46062b | 46 | { |
f6625916 MD |
47 | struct declaration_float *float_declaration; |
48 | struct declaration *declaration; | |
0a46062b | 49 | |
f6625916 MD |
50 | float_declaration = g_new(struct declaration_float, 1); |
51 | declaration = &float_declaration->p; | |
52 | declaration->id = CTF_TYPE_FLOAT; | |
f6625916 | 53 | declaration->alignment = alignment; |
f6625916 MD |
54 | declaration->declaration_free = _float_declaration_free; |
55 | declaration->definition_new = _float_definition_new; | |
56 | declaration->definition_free = _float_definition_free; | |
57 | declaration->ref = 1; | |
58 | float_declaration->byte_order = byte_order; | |
e19c3d69 | 59 | |
add40b62 | 60 | float_declaration->sign = integer_declaration_new(1, |
81dee1bb MD |
61 | byte_order, false, 1, 2, |
62 | CTF_STRING_NONE); | |
add40b62 | 63 | float_declaration->mantissa = integer_declaration_new(mantissa_len - 1, |
81dee1bb MD |
64 | byte_order, false, 1, 10, |
65 | CTF_STRING_NONE); | |
add40b62 | 66 | float_declaration->exp = integer_declaration_new(exp_len, |
81dee1bb MD |
67 | byte_order, true, 1, 10, |
68 | CTF_STRING_NONE); | |
f6625916 | 69 | return float_declaration; |
0a46062b | 70 | } |
c054553d MD |
71 | |
72 | static | |
e1151715 | 73 | struct definition * |
f6625916 | 74 | _float_definition_new(struct declaration *declaration, |
05c749e5 | 75 | struct definition_scope *parent_scope, |
98df1c9f MD |
76 | GQuark field_name, int index, |
77 | const char *root_name) | |
c054553d | 78 | { |
f6625916 MD |
79 | struct declaration_float *float_declaration = |
80 | container_of(declaration, struct declaration_float, p); | |
e1151715 | 81 | struct definition_float *_float; |
d11e9c49 | 82 | struct definition *tmp; |
98df1c9f | 83 | int ret; |
c054553d | 84 | |
e1151715 | 85 | _float = g_new(struct definition_float, 1); |
f6625916 | 86 | declaration_ref(&float_declaration->p); |
05c749e5 MD |
87 | _float->p.declaration = declaration; |
88 | _float->declaration = float_declaration; | |
a35173fe | 89 | _float->p.scope = new_definition_scope(parent_scope, field_name, root_name); |
98df1c9f | 90 | _float->p.path = new_definition_path(parent_scope, field_name, root_name); |
d11e9c49 MD |
91 | if (float_declaration->byte_order == LITTLE_ENDIAN) { |
92 | tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p, | |
a35173fe | 93 | _float->p.scope, g_quark_from_static_string("mantissa"), 0, NULL); |
d11e9c49 MD |
94 | _float->mantissa = container_of(tmp, struct definition_integer, p); |
95 | tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p, | |
a35173fe | 96 | _float->p.scope, g_quark_from_static_string("exp"), 1, NULL); |
d11e9c49 MD |
97 | _float->exp = container_of(tmp, struct definition_integer, p); |
98 | tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p, | |
a35173fe | 99 | _float->p.scope, g_quark_from_static_string("sign"), 2, NULL); |
d11e9c49 MD |
100 | _float->sign = container_of(tmp, struct definition_integer, p); |
101 | } else { | |
102 | tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p, | |
a35173fe | 103 | _float->p.scope, g_quark_from_static_string("sign"), 0, NULL); |
d11e9c49 MD |
104 | _float->sign = container_of(tmp, struct definition_integer, p); |
105 | tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p, | |
a35173fe | 106 | _float->p.scope, g_quark_from_static_string("exp"), 1, NULL); |
d11e9c49 MD |
107 | _float->exp = container_of(tmp, struct definition_integer, p); |
108 | tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p, | |
a35173fe | 109 | _float->p.scope, g_quark_from_static_string("mantissa"), 2, NULL); |
d11e9c49 MD |
110 | _float->mantissa = container_of(tmp, struct definition_integer, p); |
111 | } | |
c054553d | 112 | _float->p.ref = 1; |
98df1c9f MD |
113 | /* |
114 | * Use INT_MAX order to ensure that all fields of the parent | |
115 | * scope are seen as being prior to this scope. | |
116 | */ | |
117 | _float->p.index = root_name ? INT_MAX : index; | |
b1a2f580 | 118 | _float->p.name = field_name; |
c054553d | 119 | _float->value = 0.0; |
98df1c9f MD |
120 | ret = register_field_definition(field_name, &_float->p, |
121 | parent_scope); | |
122 | assert(!ret); | |
c054553d MD |
123 | return &_float->p; |
124 | } | |
125 | ||
126 | static | |
e1151715 | 127 | void _float_definition_free(struct definition *definition) |
c054553d | 128 | { |
e1151715 MD |
129 | struct definition_float *_float = |
130 | container_of(definition, struct definition_float, p); | |
c054553d | 131 | |
d11e9c49 MD |
132 | definition_unref(&_float->sign->p); |
133 | definition_unref(&_float->exp->p); | |
134 | definition_unref(&_float->mantissa->p); | |
a35173fe | 135 | free_definition_scope(_float->p.scope); |
f6625916 | 136 | declaration_unref(_float->p.declaration); |
c054553d MD |
137 | g_free(_float); |
138 | } |