4 * Array 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_array_read(struct bt_stream_pos
*ppos
, struct bt_definition
*definition
)
33 struct definition_array
*array_definition
=
34 container_of(definition
, struct definition_array
, p
);
35 struct declaration_array
*array_declaration
=
36 array_definition
->declaration
;
37 struct bt_declaration
*elem
= array_declaration
->elem
;
38 struct ctf_stream_pos
*pos
=
39 container_of(ppos
, struct ctf_stream_pos
, parent
);
41 if (elem
->id
== CTF_TYPE_INTEGER
) {
42 struct declaration_integer
*integer_declaration
=
43 container_of(elem
, struct declaration_integer
, p
);
45 if (integer_declaration
->encoding
== CTF_STRING_UTF8
46 || integer_declaration
->encoding
== CTF_STRING_ASCII
) {
48 if (integer_declaration
->len
== CHAR_BIT
49 && integer_declaration
->p
.alignment
== CHAR_BIT
) {
51 if (!ctf_align_pos(pos
, integer_declaration
->p
.alignment
))
53 if (!ctf_pos_access_ok(pos
, array_declaration
->len
* CHAR_BIT
))
56 g_string_assign(array_definition
->string
, "");
57 g_string_insert_len(array_definition
->string
,
58 0, (char *) ctf_get_pos_addr(pos
),
59 array_declaration
->len
);
60 if (!ctf_move_pos(pos
, array_declaration
->len
* CHAR_BIT
))
66 return bt_array_rw(ppos
, definition
);
69 int ctf_array_write(struct bt_stream_pos
*ppos
, struct bt_definition
*definition
)
71 struct definition_array
*array_definition
=
72 container_of(definition
, struct definition_array
, p
);
73 struct declaration_array
*array_declaration
=
74 array_definition
->declaration
;
75 struct bt_declaration
*elem
= array_declaration
->elem
;
76 struct ctf_stream_pos
*pos
=
77 container_of(ppos
, struct ctf_stream_pos
, parent
);
79 if (elem
->id
== CTF_TYPE_INTEGER
) {
80 struct declaration_integer
*integer_declaration
=
81 container_of(elem
, struct declaration_integer
, p
);
83 if (integer_declaration
->encoding
== CTF_STRING_UTF8
84 || integer_declaration
->encoding
== CTF_STRING_ASCII
) {
86 if (integer_declaration
->len
== CHAR_BIT
87 && integer_declaration
->p
.alignment
== CHAR_BIT
) {
89 if (!ctf_align_pos(pos
, integer_declaration
->p
.alignment
))
91 if (!ctf_pos_access_ok(pos
, array_declaration
->len
* CHAR_BIT
))
94 memcpy((char *) ctf_get_pos_addr(pos
),
95 array_definition
->string
->str
,
96 array_declaration
->len
);
97 if (!ctf_move_pos(pos
, array_declaration
->len
* CHAR_BIT
))
103 return bt_array_rw(ppos
, definition
);
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