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[babeltrace.git] / types / integer.c
1 /*
2 * integer.c
3 *
4 * BabelTrace - Integer Type Converter
5 *
6 * Copyright 2010, 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
7 *
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:
14 *
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
17 */
18
19 #include <babeltrace/compiler.h>
20 #include <babeltrace/align.h>
21 #include <babeltrace/format.h>
22 #include <stdint.h>
23
24 static
25 struct definition *_integer_definition_new(struct declaration *declaration,
26 struct definition_scope *parent_scope,
27 GQuark field_name, int index);
28 static
29 void _integer_definition_free(struct definition *definition);
30
31 void integer_copy(struct stream_pos *dest, const struct format *fdest,
32 struct stream_pos *src, const struct format *fsrc,
33 struct definition *definition)
34 {
35 struct definition_integer *integer =
36 container_of(definition, struct definition_integer, p);
37 struct declaration_integer *integer_declaration = integer->declaration;
38
39 if (!integer_declaration->signedness) {
40 uint64_t v;
41
42 v = fsrc->uint_read(src, integer_declaration);
43 if (fdest)
44 fdest->uint_write(dest, integer_declaration, v);
45 } else {
46 int64_t v;
47
48 v = fsrc->int_read(src, integer_declaration);
49 if (fdest)
50 fdest->int_write(dest, integer_declaration, v);
51 }
52 }
53
54 static
55 void _integer_declaration_free(struct declaration *declaration)
56 {
57 struct declaration_integer *integer_declaration =
58 container_of(declaration, struct declaration_integer, p);
59 g_free(integer_declaration);
60 }
61
62 struct declaration_integer *
63 integer_declaration_new(size_t len, int byte_order,
64 int signedness, size_t alignment)
65 {
66 struct declaration_integer *integer_declaration;
67
68 integer_declaration = g_new(struct declaration_integer, 1);
69 integer_declaration->p.id = CTF_TYPE_INTEGER;
70 integer_declaration->p.alignment = alignment;
71 integer_declaration->p.copy = integer_copy;
72 integer_declaration->p.declaration_free = _integer_declaration_free;
73 integer_declaration->p.definition_free = _integer_definition_free;
74 integer_declaration->p.definition_new = _integer_definition_new;
75 integer_declaration->p.ref = 1;
76 integer_declaration->len = len;
77 integer_declaration->byte_order = byte_order;
78 integer_declaration->signedness = signedness;
79 return integer_declaration;
80 }
81
82 static
83 struct definition *
84 _integer_definition_new(struct declaration *declaration,
85 struct definition_scope *parent_scope,
86 GQuark field_name, int index)
87 {
88 struct declaration_integer *integer_declaration =
89 container_of(declaration, struct declaration_integer, p);
90 struct definition_integer *integer;
91
92 integer = g_new(struct definition_integer, 1);
93 declaration_ref(&integer_declaration->p);
94 integer->p.declaration = declaration;
95 integer->declaration = integer_declaration;
96 integer->p.ref = 1;
97 integer->p.index = index;
98 integer->value._unsigned = 0;
99 return &integer->p;
100 }
101
102 static
103 void _integer_definition_free(struct definition *definition)
104 {
105 struct definition_integer *integer =
106 container_of(definition, struct definition_integer, p);
107
108 declaration_unref(integer->p.declaration);
109 g_free(integer);
110 }
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