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 | ||
45 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
46 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
47 | ||
48 | if (integer_declaration->len == CHAR_BIT | |
49 | && integer_declaration->p.alignment == CHAR_BIT) { | |
50 | ||
70fd5a51 MD |
51 | if (!ctf_align_pos(pos, integer_declaration->p.alignment)) |
52 | return -EFAULT; | |
81dee1bb MD |
53 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) |
54 | return -EFAULT; | |
55 | ||
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); | |
024e6181 MD |
60 | /* |
61 | * We want to populate both the string | |
62 | * and the underlying values, so carry | |
63 | * on calling bt_array_rw(). | |
64 | */ | |
81dee1bb MD |
65 | } |
66 | } | |
67 | } | |
dcaa2e7d | 68 | return bt_array_rw(ppos, definition); |
81dee1bb MD |
69 | } |
70 | ||
0d69b916 | 71 | int ctf_array_write(struct bt_stream_pos *ppos, struct bt_definition *definition) |
81dee1bb MD |
72 | { |
73 | struct definition_array *array_definition = | |
74 | container_of(definition, struct definition_array, p); | |
75 | struct declaration_array *array_declaration = | |
76 | array_definition->declaration; | |
ecc54f11 | 77 | struct bt_declaration *elem = array_declaration->elem; |
81dee1bb MD |
78 | struct ctf_stream_pos *pos = |
79 | container_of(ppos, struct ctf_stream_pos, parent); | |
80 | ||
81 | if (elem->id == CTF_TYPE_INTEGER) { | |
82 | struct declaration_integer *integer_declaration = | |
83 | container_of(elem, struct declaration_integer, p); | |
84 | ||
85 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
86 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
87 | ||
88 | if (integer_declaration->len == CHAR_BIT | |
89 | && integer_declaration->p.alignment == CHAR_BIT) { | |
90 | ||
70fd5a51 MD |
91 | if (!ctf_align_pos(pos, integer_declaration->p.alignment)) |
92 | return -EFAULT; | |
81dee1bb MD |
93 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) |
94 | return -EFAULT; | |
95 | ||
96 | memcpy((char *) ctf_get_pos_addr(pos), | |
97 | array_definition->string->str, | |
98 | array_declaration->len); | |
70fd5a51 MD |
99 | if (!ctf_move_pos(pos, array_declaration->len * CHAR_BIT)) |
100 | return -EFAULT; | |
81dee1bb MD |
101 | return 0; |
102 | } | |
103 | } | |
104 | } | |
dcaa2e7d | 105 | return bt_array_rw(ppos, definition); |
d06d03db | 106 | } |