2 * BabelTrace - Bitfield Type Converter
4 * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include <babeltrace/compiler.h>
22 #include <babeltrace/types.h>
25 size_t bitfield_copy(struct stream_pos
*dest
, const struct format
*fdest
,
26 struct stream_pos
*src
, const struct format
*fsrc
,
27 const struct type_class
*type_class
)
29 struct type_class_bitfield
*bitfield_class
=
30 container_of(type_class
, struct type_class_bitfield
, p
);
31 struct type_class_integer
*int_class
= &bitfield_class
->p
;
33 if (!int_class
->signedness
) {
36 v
= fsrc
->bitfield_unsigned_read(src
, bitfield_class
);
37 return fdest
->bitfield_unsigned_write(dest
, bitfield_class
, v
);
41 v
= fsrc
->bitfield_signed_read(src
, bitfield_class
);
42 return fdest
->bitfield_signed_write(dest
, bitfield_class
, v
);
46 void bitfield_type_free(struct type_class_bitfield
*bitfield_class
)
48 g_free(bitfield_class
);
51 static void _bitfield_type_free(struct type_class
*type_class
)
53 struct type_class_bitfield
*bitfield_class
=
54 container_of(type_class
, struct type_class_bitfield
, p
);
55 bitfield_type_free(bitfield_class
);
58 struct type_class_bitfield
*bitfield_type_new(const char *name
,
59 size_t len
, int byte_order
,
63 struct type_class_bitfield
*bitfield_class
;
64 struct type_class_integer
*int_class
;
67 bitfield_class
= g_new(struct type_class_bitfield
, 1);
68 int_class
= &bitfield_class
->p
;
69 int_class
->p
.name
= g_quark_from_string(name
);
70 int_class
->p
.alignment
= alignment
;
71 int_class
->p
.copy
= bitfield_copy
;
72 int_class
->p
.free
= _bitfield_type_free
;
74 int_class
->byte_order
= byte_order
;
75 int_class
->signedness
= signedness
;
76 if (int_class
->p
.name
) {
77 ret
= ctf_register_type(&int_class
->p
);
79 g_free(bitfield_class
);
83 return bitfield_class
;
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