Fix: emf uri: surround by " "
[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.
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19 */
20
21#include <babeltrace/compiler.h>
4c8bfb7e 22#include <babeltrace/format.h>
3122e6f0 23#include <babeltrace/types.h>
dd6f7e0f 24#include <babeltrace/endian.h>
0a46062b 25
c054553d 26static
f6625916 27struct definition *_float_definition_new(struct declaration *declaration,
05c749e5 28 struct definition_scope *parent_scope,
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29 GQuark field_name, int index,
30 const char *root_name);
c054553d 31static
e1151715 32void _float_definition_free(struct definition *definition);
c054553d 33
c054553d 34static
f6625916 35void _float_declaration_free(struct declaration *declaration)
90b676d7 36{
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37 struct declaration_float *float_declaration =
38 container_of(declaration, struct declaration_float, p);
c054553d 39
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40 declaration_unref(&float_declaration->exp->p);
41 declaration_unref(&float_declaration->mantissa->p);
42 declaration_unref(&float_declaration->sign->p);
43 g_free(float_declaration);
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44}
45
f6625916 46struct declaration_float *
add40b62 47 float_declaration_new(size_t mantissa_len,
e19c3d69 48 size_t exp_len, int byte_order, size_t alignment)
0a46062b 49{
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50 struct declaration_float *float_declaration;
51 struct declaration *declaration;
0a46062b 52
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53 float_declaration = g_new(struct declaration_float, 1);
54 declaration = &float_declaration->p;
55 declaration->id = CTF_TYPE_FLOAT;
f6625916 56 declaration->alignment = alignment;
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57 declaration->declaration_free = _float_declaration_free;
58 declaration->definition_new = _float_definition_new;
59 declaration->definition_free = _float_definition_free;
60 declaration->ref = 1;
61 float_declaration->byte_order = byte_order;
e19c3d69 62
add40b62 63 float_declaration->sign = integer_declaration_new(1,
81dee1bb 64 byte_order, false, 1, 2,
56e60373 65 CTF_STRING_NONE, NULL);
add40b62 66 float_declaration->mantissa = integer_declaration_new(mantissa_len - 1,
81dee1bb 67 byte_order, false, 1, 10,
56e60373 68 CTF_STRING_NONE, NULL);
add40b62 69 float_declaration->exp = integer_declaration_new(exp_len,
81dee1bb 70 byte_order, true, 1, 10,
56e60373 71 CTF_STRING_NONE, NULL);
f6625916 72 return float_declaration;
0a46062b 73}
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74
75static
e1151715 76struct definition *
f6625916 77 _float_definition_new(struct declaration *declaration,
05c749e5 78 struct definition_scope *parent_scope,
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79 GQuark field_name, int index,
80 const char *root_name)
c054553d 81{
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82 struct declaration_float *float_declaration =
83 container_of(declaration, struct declaration_float, p);
e1151715 84 struct definition_float *_float;
d11e9c49 85 struct definition *tmp;
98df1c9f 86 int ret;
c054553d 87
e1151715 88 _float = g_new(struct definition_float, 1);
f6625916 89 declaration_ref(&float_declaration->p);
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90 _float->p.declaration = declaration;
91 _float->declaration = float_declaration;
a35173fe 92 _float->p.scope = new_definition_scope(parent_scope, field_name, root_name);
98df1c9f 93 _float->p.path = new_definition_path(parent_scope, field_name, root_name);
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94 if (float_declaration->byte_order == LITTLE_ENDIAN) {
95 tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p,
a35173fe 96 _float->p.scope, g_quark_from_static_string("mantissa"), 0, NULL);
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97 _float->mantissa = container_of(tmp, struct definition_integer, p);
98 tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p,
a35173fe 99 _float->p.scope, g_quark_from_static_string("exp"), 1, NULL);
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100 _float->exp = container_of(tmp, struct definition_integer, p);
101 tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p,
a35173fe 102 _float->p.scope, g_quark_from_static_string("sign"), 2, NULL);
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103 _float->sign = container_of(tmp, struct definition_integer, p);
104 } else {
105 tmp = float_declaration->sign->p.definition_new(&float_declaration->sign->p,
a35173fe 106 _float->p.scope, g_quark_from_static_string("sign"), 0, NULL);
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107 _float->sign = container_of(tmp, struct definition_integer, p);
108 tmp = float_declaration->exp->p.definition_new(&float_declaration->exp->p,
a35173fe 109 _float->p.scope, g_quark_from_static_string("exp"), 1, NULL);
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110 _float->exp = container_of(tmp, struct definition_integer, p);
111 tmp = float_declaration->mantissa->p.definition_new(&float_declaration->mantissa->p,
a35173fe 112 _float->p.scope, g_quark_from_static_string("mantissa"), 2, NULL);
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113 _float->mantissa = container_of(tmp, struct definition_integer, p);
114 }
c054553d 115 _float->p.ref = 1;
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116 /*
117 * Use INT_MAX order to ensure that all fields of the parent
118 * scope are seen as being prior to this scope.
119 */
120 _float->p.index = root_name ? INT_MAX : index;
b1a2f580 121 _float->p.name = field_name;
c054553d 122 _float->value = 0.0;
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123 if (parent_scope) {
124 ret = register_field_definition(field_name, &_float->p,
125 parent_scope);
126 assert(!ret);
127 }
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128 return &_float->p;
129}
130
131static
e1151715 132void _float_definition_free(struct definition *definition)
c054553d 133{
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134 struct definition_float *_float =
135 container_of(definition, struct definition_float, p);
c054553d 136
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137 definition_unref(&_float->sign->p);
138 definition_unref(&_float->exp->p);
139 definition_unref(&_float->mantissa->p);
a35173fe 140 free_definition_scope(_float->p.scope);
f6625916 141 declaration_unref(_float->p.declaration);
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142 g_free(_float);
143}
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