Implement clock mapping within integer type
[babeltrace.git] / types / integer.c
1 /*
2 * integer.c
3 *
4 * BabelTrace - Integer Type Converter
5 *
6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
7 *
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 *
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:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
19 */
20
21 #include <babeltrace/compiler.h>
22 #include <babeltrace/align.h>
23 #include <babeltrace/format.h>
24 #include <stdint.h>
25
26 static
27 struct definition *_integer_definition_new(struct declaration *declaration,
28 struct definition_scope *parent_scope,
29 GQuark field_name, int index,
30 const char *root_name);
31 static
32 void _integer_definition_free(struct definition *definition);
33
34 static
35 void _integer_declaration_free(struct declaration *declaration)
36 {
37 struct declaration_integer *integer_declaration =
38 container_of(declaration, struct declaration_integer, p);
39 g_free(integer_declaration);
40 }
41
42 struct declaration_integer *
43 integer_declaration_new(size_t len, int byte_order,
44 int signedness, size_t alignment, int base,
45 enum ctf_string_encoding encoding,
46 struct ctf_clock *clock)
47 {
48 struct declaration_integer *integer_declaration;
49
50 integer_declaration = g_new(struct declaration_integer, 1);
51 integer_declaration->p.id = CTF_TYPE_INTEGER;
52 integer_declaration->p.alignment = alignment;
53 integer_declaration->p.declaration_free = _integer_declaration_free;
54 integer_declaration->p.definition_free = _integer_definition_free;
55 integer_declaration->p.definition_new = _integer_definition_new;
56 integer_declaration->p.ref = 1;
57 integer_declaration->len = len;
58 integer_declaration->byte_order = byte_order;
59 integer_declaration->signedness = signedness;
60 integer_declaration->base = base;
61 integer_declaration->encoding = encoding;
62 integer_declaration->clock = clock;
63 return integer_declaration;
64 }
65
66 static
67 struct definition *
68 _integer_definition_new(struct declaration *declaration,
69 struct definition_scope *parent_scope,
70 GQuark field_name, int index,
71 const char *root_name)
72 {
73 struct declaration_integer *integer_declaration =
74 container_of(declaration, struct declaration_integer, p);
75 struct definition_integer *integer;
76 int ret;
77
78 integer = g_new(struct definition_integer, 1);
79 declaration_ref(&integer_declaration->p);
80 integer->p.declaration = declaration;
81 integer->declaration = integer_declaration;
82 integer->p.ref = 1;
83 /*
84 * Use INT_MAX order to ensure that all fields of the parent
85 * scope are seen as being prior to this scope.
86 */
87 integer->p.index = root_name ? INT_MAX : index;
88 integer->p.name = field_name;
89 integer->p.path = new_definition_path(parent_scope, field_name,
90 root_name);
91 integer->p.scope = NULL;
92 integer->value._unsigned = 0;
93 ret = register_field_definition(field_name, &integer->p,
94 parent_scope);
95 assert(!ret);
96 return &integer->p;
97 }
98
99 static
100 void _integer_definition_free(struct definition *definition)
101 {
102 struct definition_integer *integer =
103 container_of(definition, struct definition_integer, p);
104
105 declaration_unref(integer->p.declaration);
106 g_free(integer);
107 }
108
109 uint64_t get_unsigned_int(struct definition *field)
110 {
111 struct definition_integer *integer_definition;
112 const struct declaration_integer *integer_declaration;
113
114 integer_definition = container_of(field, struct definition_integer, p);
115 integer_declaration = integer_definition->declaration;
116
117 if (!integer_declaration->signedness) {
118 return integer_definition->value._unsigned;
119 }
120 fprintf(stderr, "[warning] Extracting unsigned value in a signed int\n");
121 return (uint64_t)integer_definition->value._signed;
122 }
123
124 int64_t get_signed_int(struct definition *field)
125 {
126 struct definition_integer *integer_definition;
127 const struct declaration_integer *integer_declaration;
128
129 integer_definition = container_of(field, struct definition_integer, p);
130 integer_declaration = integer_definition->declaration;
131
132 if (integer_declaration->signedness) {
133 return integer_definition->value._signed;
134 }
135 fprintf(stderr, "[warning] Extracting signed value in an unsigned int\n");
136 return (int64_t)integer_definition->value._unsigned;
137 }
This page took 0.048404 seconds and 4 git commands to generate.