4 * Sequence format access functions.
6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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:
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
29 #include <babeltrace/ctf/types.h>
31 int ctf_sequence_read(struct bt_stream_pos
*ppos
, struct bt_definition
*definition
)
33 struct definition_sequence
*sequence_definition
=
34 container_of(definition
, struct definition_sequence
, p
);
35 struct declaration_sequence
*sequence_declaration
=
36 sequence_definition
->declaration
;
37 struct bt_declaration
*elem
= sequence_declaration
->elem
;
38 struct ctf_stream_pos
*pos
= ctf_pos(ppos
);
40 if (elem
->id
== CTF_TYPE_INTEGER
) {
41 struct declaration_integer
*integer_declaration
=
42 container_of(elem
, struct declaration_integer
, p
);
44 if (integer_declaration
->encoding
== CTF_STRING_UTF8
45 || integer_declaration
->encoding
== CTF_STRING_ASCII
) {
47 if (integer_declaration
->len
== CHAR_BIT
48 && integer_declaration
->p
.alignment
== CHAR_BIT
) {
49 uint64_t len
= bt_sequence_len(sequence_definition
);
51 if (!ctf_align_pos(pos
, integer_declaration
->p
.alignment
))
53 if (!ctf_pos_access_ok(pos
, len
* CHAR_BIT
))
56 g_string_assign(sequence_definition
->string
, "");
57 g_string_insert_len(sequence_definition
->string
,
58 0, (char *) ctf_get_pos_addr(pos
), len
);
59 if (!ctf_move_pos(pos
, len
* CHAR_BIT
))
65 return bt_sequence_rw(ppos
, definition
);
68 int ctf_sequence_write(struct bt_stream_pos
*ppos
, struct bt_definition
*definition
)
70 struct definition_sequence
*sequence_definition
=
71 container_of(definition
, struct definition_sequence
, p
);
72 struct declaration_sequence
*sequence_declaration
=
73 sequence_definition
->declaration
;
74 struct bt_declaration
*elem
= sequence_declaration
->elem
;
75 struct ctf_stream_pos
*pos
= ctf_pos(ppos
);
77 if (elem
->id
== CTF_TYPE_INTEGER
) {
78 struct declaration_integer
*integer_declaration
=
79 container_of(elem
, struct declaration_integer
, p
);
81 if (integer_declaration
->encoding
== CTF_STRING_UTF8
82 || integer_declaration
->encoding
== CTF_STRING_ASCII
) {
84 if (integer_declaration
->len
== CHAR_BIT
85 && integer_declaration
->p
.alignment
== CHAR_BIT
) {
86 uint64_t len
= bt_sequence_len(sequence_definition
);
88 if (!ctf_align_pos(pos
, integer_declaration
->p
.alignment
))
90 if (!ctf_pos_access_ok(pos
, len
* CHAR_BIT
))
93 memcpy((char *) ctf_get_pos_addr(pos
),
94 sequence_definition
->string
->str
, len
);
95 if (!ctf_move_pos(pos
, len
* CHAR_BIT
))
101 return bt_sequence_rw(ppos
, definition
);
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