Commit | Line | Data |
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d06d03db MD |
1 | /* |
2 | * Common Trace Format | |
3 | * | |
4 | * Array format access functions. | |
5 | * | |
64fa3fec MD |
6 | * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation |
7 | * | |
8 | * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
d06d03db | 9 | * |
ccd7e1c8 MD |
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: | |
d06d03db | 16 | * |
ccd7e1c8 MD |
17 | * The above copyright notice and this permission notice shall be included in |
18 | * all copies or substantial portions of the Software. | |
c462e188 MD |
19 | * |
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 | |
26 | * SOFTWARE. | |
d06d03db MD |
27 | */ |
28 | ||
29 | #include <babeltrace/ctf/types.h> | |
30 | ||
0d69b916 | 31 | int ctf_array_read(struct bt_stream_pos *ppos, struct bt_definition *definition) |
d06d03db | 32 | { |
81dee1bb MD |
33 | struct definition_array *array_definition = |
34 | container_of(definition, struct definition_array, p); | |
35 | struct declaration_array *array_declaration = | |
36 | array_definition->declaration; | |
ecc54f11 | 37 | struct bt_declaration *elem = array_declaration->elem; |
81dee1bb MD |
38 | struct ctf_stream_pos *pos = |
39 | container_of(ppos, struct ctf_stream_pos, parent); | |
40 | ||
41 | if (elem->id == CTF_TYPE_INTEGER) { | |
42 | struct declaration_integer *integer_declaration = | |
43 | container_of(elem, struct declaration_integer, p); | |
44 | ||
e7f1ad36 JG |
45 | if (bt_int_is_char(elem)) { |
46 | if (!ctf_align_pos(pos, integer_declaration->p.alignment)) | |
47 | return -EFAULT; | |
48 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
49 | return -EFAULT; | |
81dee1bb | 50 | |
e7f1ad36 JG |
51 | g_string_assign(array_definition->string, ""); |
52 | g_string_insert_len(array_definition->string, | |
53 | 0, (char *) ctf_get_pos_addr(pos), | |
54 | array_declaration->len); | |
55 | /* | |
56 | * We want to populate both the string | |
57 | * and the underlying values, so carry | |
58 | * on calling bt_array_rw(). | |
59 | */ | |
81dee1bb MD |
60 | } |
61 | } | |
dcaa2e7d | 62 | return bt_array_rw(ppos, definition); |
81dee1bb MD |
63 | } |
64 | ||
0d69b916 | 65 | int ctf_array_write(struct bt_stream_pos *ppos, struct bt_definition *definition) |
81dee1bb MD |
66 | { |
67 | struct definition_array *array_definition = | |
68 | container_of(definition, struct definition_array, p); | |
69 | struct declaration_array *array_declaration = | |
70 | array_definition->declaration; | |
ecc54f11 | 71 | struct bt_declaration *elem = array_declaration->elem; |
81dee1bb MD |
72 | struct ctf_stream_pos *pos = |
73 | container_of(ppos, struct ctf_stream_pos, parent); | |
74 | ||
75 | if (elem->id == CTF_TYPE_INTEGER) { | |
76 | struct declaration_integer *integer_declaration = | |
77 | container_of(elem, struct declaration_integer, p); | |
78 | ||
e7f1ad36 JG |
79 | if (bt_int_is_char(elem)) { |
80 | if (!ctf_align_pos(pos, integer_declaration->p.alignment)) | |
81 | return -EFAULT; | |
82 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
83 | return -EFAULT; | |
81dee1bb | 84 | |
e7f1ad36 JG |
85 | memcpy((char *) ctf_get_pos_addr(pos), |
86 | array_definition->string->str, | |
87 | array_declaration->len); | |
88 | if (!ctf_move_pos(pos, array_declaration->len * CHAR_BIT)) | |
89 | return -EFAULT; | |
90 | return 0; | |
81dee1bb MD |
91 | } |
92 | } | |
dcaa2e7d | 93 | return bt_array_rw(ppos, definition); |
d06d03db | 94 | } |