| 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 <babeltrace/types.h> |
| 25 | #include <stdint.h> |
| 26 | |
| 27 | static |
| 28 | struct definition *_integer_definition_new(struct declaration *declaration, |
| 29 | struct definition_scope *parent_scope, |
| 30 | GQuark field_name, int index, |
| 31 | const char *root_name); |
| 32 | static |
| 33 | void _integer_definition_free(struct definition *definition); |
| 34 | |
| 35 | static |
| 36 | void _integer_declaration_free(struct declaration *declaration) |
| 37 | { |
| 38 | struct declaration_integer *integer_declaration = |
| 39 | container_of(declaration, struct declaration_integer, p); |
| 40 | g_free(integer_declaration); |
| 41 | } |
| 42 | |
| 43 | struct declaration_integer * |
| 44 | integer_declaration_new(size_t len, int byte_order, |
| 45 | int signedness, size_t alignment, int base, |
| 46 | enum ctf_string_encoding encoding, |
| 47 | struct ctf_clock *clock) |
| 48 | { |
| 49 | struct declaration_integer *integer_declaration; |
| 50 | |
| 51 | integer_declaration = g_new(struct declaration_integer, 1); |
| 52 | integer_declaration->p.id = CTF_TYPE_INTEGER; |
| 53 | integer_declaration->p.alignment = alignment; |
| 54 | integer_declaration->p.declaration_free = _integer_declaration_free; |
| 55 | integer_declaration->p.definition_free = _integer_definition_free; |
| 56 | integer_declaration->p.definition_new = _integer_definition_new; |
| 57 | integer_declaration->p.ref = 1; |
| 58 | integer_declaration->len = len; |
| 59 | integer_declaration->byte_order = byte_order; |
| 60 | integer_declaration->signedness = signedness; |
| 61 | integer_declaration->base = base; |
| 62 | integer_declaration->encoding = encoding; |
| 63 | integer_declaration->clock = clock; |
| 64 | return integer_declaration; |
| 65 | } |
| 66 | |
| 67 | static |
| 68 | struct definition * |
| 69 | _integer_definition_new(struct declaration *declaration, |
| 70 | struct definition_scope *parent_scope, |
| 71 | GQuark field_name, int index, |
| 72 | const char *root_name) |
| 73 | { |
| 74 | struct declaration_integer *integer_declaration = |
| 75 | container_of(declaration, struct declaration_integer, p); |
| 76 | struct definition_integer *integer; |
| 77 | int ret; |
| 78 | |
| 79 | integer = g_new(struct definition_integer, 1); |
| 80 | declaration_ref(&integer_declaration->p); |
| 81 | integer->p.declaration = declaration; |
| 82 | integer->declaration = integer_declaration; |
| 83 | integer->p.ref = 1; |
| 84 | /* |
| 85 | * Use INT_MAX order to ensure that all fields of the parent |
| 86 | * scope are seen as being prior to this scope. |
| 87 | */ |
| 88 | integer->p.index = root_name ? INT_MAX : index; |
| 89 | integer->p.name = field_name; |
| 90 | integer->p.path = new_definition_path(parent_scope, field_name, |
| 91 | root_name); |
| 92 | integer->p.scope = NULL; |
| 93 | integer->value._unsigned = 0; |
| 94 | ret = register_field_definition(field_name, &integer->p, |
| 95 | parent_scope); |
| 96 | assert(!ret); |
| 97 | return &integer->p; |
| 98 | } |
| 99 | |
| 100 | static |
| 101 | void _integer_definition_free(struct definition *definition) |
| 102 | { |
| 103 | struct definition_integer *integer = |
| 104 | container_of(definition, struct definition_integer, p); |
| 105 | |
| 106 | declaration_unref(integer->p.declaration); |
| 107 | g_free(integer); |
| 108 | } |
| 109 | |
| 110 | enum ctf_string_encoding get_int_encoding(const struct definition *field) |
| 111 | { |
| 112 | struct definition_integer *integer_definition; |
| 113 | const struct declaration_integer *integer_declaration; |
| 114 | |
| 115 | integer_definition = container_of(field, struct definition_integer, p); |
| 116 | integer_declaration = integer_definition->declaration; |
| 117 | |
| 118 | return integer_declaration->encoding; |
| 119 | } |
| 120 | |
| 121 | int get_int_base(const struct definition *field) |
| 122 | { |
| 123 | struct definition_integer *integer_definition; |
| 124 | const struct declaration_integer *integer_declaration; |
| 125 | |
| 126 | integer_definition = container_of(field, struct definition_integer, p); |
| 127 | integer_declaration = integer_definition->declaration; |
| 128 | |
| 129 | return integer_declaration->base; |
| 130 | } |
| 131 | |
| 132 | int get_int_byte_order(const struct definition *field) |
| 133 | { |
| 134 | struct definition_integer *integer_definition; |
| 135 | const struct declaration_integer *integer_declaration; |
| 136 | |
| 137 | integer_definition = container_of(field, struct definition_integer, p); |
| 138 | integer_declaration = integer_definition->declaration; |
| 139 | |
| 140 | return integer_declaration->byte_order; |
| 141 | } |
| 142 | |
| 143 | int get_int_signedness(const struct definition *field) |
| 144 | { |
| 145 | struct definition_integer *integer_definition; |
| 146 | const struct declaration_integer *integer_declaration; |
| 147 | |
| 148 | integer_definition = container_of(field, struct definition_integer, p); |
| 149 | integer_declaration = integer_definition->declaration; |
| 150 | |
| 151 | return integer_declaration->signedness; |
| 152 | } |
| 153 | |
| 154 | uint64_t get_unsigned_int(const struct definition *field) |
| 155 | { |
| 156 | struct definition_integer *integer_definition; |
| 157 | const struct declaration_integer *integer_declaration; |
| 158 | |
| 159 | integer_definition = container_of(field, struct definition_integer, p); |
| 160 | integer_declaration = integer_definition->declaration; |
| 161 | |
| 162 | if (!integer_declaration->signedness) { |
| 163 | return integer_definition->value._unsigned; |
| 164 | } |
| 165 | fprintf(stderr, "[warning] Extracting unsigned value in a signed int\n"); |
| 166 | return (uint64_t)integer_definition->value._signed; |
| 167 | } |
| 168 | |
| 169 | int64_t get_signed_int(const struct definition *field) |
| 170 | { |
| 171 | struct definition_integer *integer_definition; |
| 172 | const struct declaration_integer *integer_declaration; |
| 173 | |
| 174 | integer_definition = container_of(field, struct definition_integer, p); |
| 175 | integer_declaration = integer_definition->declaration; |
| 176 | |
| 177 | if (integer_declaration->signedness) { |
| 178 | return integer_definition->value._signed; |
| 179 | } |
| 180 | fprintf(stderr, "[warning] Extracting signed value in an unsigned int\n"); |
| 181 | return (int64_t)integer_definition->value._unsigned; |
| 182 | } |