namespace the collection functions
[babeltrace.git] / types / float.c
CommitLineData
0a46062b 1/*
ccd7e1c8 2 * float.c
0a46062b 3 *
ccd7e1c8 4 * BabelTrace - Float Type Converter
0a46062b 5 *
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6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
7 *
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
0a46062b 9 *
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10 * Permission is hereby granted, free of charge, to any person obtaining a copy
11 * of this software and associated documentation files (the "Software"), to deal
12 * in the Software without restriction, including without limitation the rights
13 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 * copies of the Software, and to permit persons to whom the Software is
15 * furnished to do so, subject to the following conditions:
0a46062b 16 *
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17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
c462e188
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19 *
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * SOFTWARE.
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27 */
28
29#include <babeltrace/compiler.h>
4c8bfb7e 30#include <babeltrace/format.h>
3122e6f0 31#include <babeltrace/types.h>
dd6f7e0f 32#include <babeltrace/endian.h>
0a46062b 33
c054553d 34static
f6625916 35struct definition *_float_definition_new(struct declaration *declaration,
05c749e5 36 struct definition_scope *parent_scope,
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37 GQuark field_name, int index,
38 const char *root_name);
c054553d 39static
e1151715 40void _float_definition_free(struct definition *definition);
c054553d 41
c054553d 42static
f6625916 43void _float_declaration_free(struct declaration *declaration)
90b676d7 44{
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45 struct declaration_float *float_declaration =
46 container_of(declaration, struct declaration_float, p);
c054553d 47
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48 bt_declaration_unref(&float_declaration->exp->p);
49 bt_declaration_unref(&float_declaration->mantissa->p);
50 bt_declaration_unref(&float_declaration->sign->p);
f6625916 51 g_free(float_declaration);
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52}
53
f6625916 54struct declaration_float *
add40b62 55 float_declaration_new(size_t mantissa_len,
e19c3d69 56 size_t exp_len, int byte_order, size_t alignment)
0a46062b 57{
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58 struct declaration_float *float_declaration;
59 struct declaration *declaration;
0a46062b 60
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61 float_declaration = g_new(struct declaration_float, 1);
62 declaration = &float_declaration->p;
63 declaration->id = CTF_TYPE_FLOAT;
f6625916 64 declaration->alignment = alignment;
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65 declaration->declaration_free = _float_declaration_free;
66 declaration->definition_new = _float_definition_new;
67 declaration->definition_free = _float_definition_free;
68 declaration->ref = 1;
69 float_declaration->byte_order = byte_order;
e19c3d69 70
add40b62 71 float_declaration->sign = integer_declaration_new(1,
81dee1bb 72 byte_order, false, 1, 2,
56e60373 73 CTF_STRING_NONE, NULL);
add40b62 74 float_declaration->mantissa = integer_declaration_new(mantissa_len - 1,
81dee1bb 75 byte_order, false, 1, 10,
56e60373 76 CTF_STRING_NONE, NULL);
add40b62 77 float_declaration->exp = integer_declaration_new(exp_len,
81dee1bb 78 byte_order, true, 1, 10,
56e60373 79 CTF_STRING_NONE, NULL);
f6625916 80 return float_declaration;
0a46062b 81}
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82
83static
e1151715 84struct definition *
f6625916 85 _float_definition_new(struct declaration *declaration,
05c749e5 86 struct definition_scope *parent_scope,
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87 GQuark field_name, int index,
88 const char *root_name)
c054553d 89{
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90 struct declaration_float *float_declaration =
91 container_of(declaration, struct declaration_float, p);
e1151715 92 struct definition_float *_float;
d11e9c49 93 struct definition *tmp;
c054553d 94
e1151715 95 _float = g_new(struct definition_float, 1);
e6b4b4f4 96 bt_declaration_ref(&float_declaration->p);
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97 _float->p.declaration = declaration;
98 _float->declaration = float_declaration;
a35173fe 99 _float->p.scope = new_definition_scope(parent_scope, field_name, root_name);
98df1c9f 100 _float->p.path = new_definition_path(parent_scope, field_name, root_name);
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101 if (float_declaration->byte_order == LITTLE_ENDIAN) {
102 tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p,
a35173fe 103 _float->p.scope, g_quark_from_static_string("mantissa"), 0, NULL);
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104 _float->mantissa = 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);
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107 _float->exp = container_of(tmp, struct definition_integer, p);
108 tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p,
a35173fe 109 _float->p.scope, g_quark_from_static_string("sign"), 2, NULL);
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110 _float->sign = container_of(tmp, struct definition_integer, p);
111 } else {
112 tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p,
a35173fe 113 _float->p.scope, g_quark_from_static_string("sign"), 0, NULL);
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114 _float->sign = container_of(tmp, struct definition_integer, p);
115 tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p,
a35173fe 116 _float->p.scope, g_quark_from_static_string("exp"), 1, NULL);
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117 _float->exp = container_of(tmp, struct definition_integer, p);
118 tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p,
a35173fe 119 _float->p.scope, g_quark_from_static_string("mantissa"), 2, NULL);
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120 _float->mantissa = container_of(tmp, struct definition_integer, p);
121 }
c054553d 122 _float->p.ref = 1;
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123 /*
124 * Use INT_MAX order to ensure that all fields of the parent
125 * scope are seen as being prior to this scope.
126 */
127 _float->p.index = root_name ? INT_MAX : index;
b1a2f580 128 _float->p.name = field_name;
c054553d 129 _float->value = 0.0;
f72803ca 130 if (parent_scope) {
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131 int ret;
132
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133 ret = register_field_definition(field_name, &_float->p,
134 parent_scope);
135 assert(!ret);
136 }
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137 return &_float->p;
138}
139
140static
e1151715 141void _float_definition_free(struct definition *definition)
c054553d 142{
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143 struct definition_float *_float =
144 container_of(definition, struct definition_float, p);
c054553d 145
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146 bt_definition_unref(&_float->sign->p);
147 bt_definition_unref(&_float->exp->p);
148 bt_definition_unref(&_float->mantissa->p);
a35173fe 149 free_definition_scope(_float->p.scope);
e6b4b4f4 150 bt_declaration_unref(_float->p.declaration);
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151 g_free(_float);
152}
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