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d06d03db MD |
1 | /* |
2 | * Common Trace Format | |
3 | * | |
4 | * Array format access functions. | |
5 | * | |
ccd7e1c8 | 6 | * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
d06d03db | 7 | * |
ccd7e1c8 MD |
8 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
9 | * of this software and associated documentation files (the "Software"), to deal | |
10 | * in the Software without restriction, including without limitation the rights | |
11 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
12 | * copies of the Software, and to permit persons to whom the Software is | |
13 | * furnished to do so, subject to the following conditions: | |
d06d03db | 14 | * |
ccd7e1c8 MD |
15 | * The above copyright notice and this permission notice shall be included in |
16 | * all copies or substantial portions of the Software. | |
d06d03db MD |
17 | */ |
18 | ||
19 | #include <babeltrace/ctf/types.h> | |
20 | ||
81dee1bb | 21 | int ctf_array_read(struct stream_pos *ppos, struct definition *definition) |
d06d03db | 22 | { |
81dee1bb MD |
23 | struct definition_array *array_definition = |
24 | container_of(definition, struct definition_array, p); | |
25 | struct declaration_array *array_declaration = | |
26 | array_definition->declaration; | |
27 | struct declaration *elem = array_declaration->elem; | |
28 | struct ctf_stream_pos *pos = | |
29 | container_of(ppos, struct ctf_stream_pos, parent); | |
30 | ||
31 | if (elem->id == CTF_TYPE_INTEGER) { | |
32 | struct declaration_integer *integer_declaration = | |
33 | container_of(elem, struct declaration_integer, p); | |
34 | ||
35 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
36 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
37 | ||
38 | if (integer_declaration->len == CHAR_BIT | |
39 | && integer_declaration->p.alignment == CHAR_BIT) { | |
40 | ||
41 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
42 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
43 | return -EFAULT; | |
44 | ||
45 | g_string_assign(array_definition->string, ""); | |
46 | g_string_insert_len(array_definition->string, | |
47 | 0, (char *) ctf_get_pos_addr(pos), | |
48 | array_declaration->len); | |
49 | ctf_move_pos(pos, array_declaration->len * CHAR_BIT); | |
50 | return 0; | |
51 | } | |
52 | } | |
53 | } | |
54 | return array_rw(ppos, definition); | |
55 | } | |
56 | ||
57 | int ctf_array_write(struct stream_pos *ppos, struct definition *definition) | |
58 | { | |
59 | struct definition_array *array_definition = | |
60 | container_of(definition, struct definition_array, p); | |
61 | struct declaration_array *array_declaration = | |
62 | array_definition->declaration; | |
63 | struct declaration *elem = array_declaration->elem; | |
64 | struct ctf_stream_pos *pos = | |
65 | container_of(ppos, struct ctf_stream_pos, parent); | |
66 | ||
67 | if (elem->id == CTF_TYPE_INTEGER) { | |
68 | struct declaration_integer *integer_declaration = | |
69 | container_of(elem, struct declaration_integer, p); | |
70 | ||
71 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
72 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
73 | ||
74 | if (integer_declaration->len == CHAR_BIT | |
75 | && integer_declaration->p.alignment == CHAR_BIT) { | |
76 | ||
77 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
78 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
79 | return -EFAULT; | |
80 | ||
81 | memcpy((char *) ctf_get_pos_addr(pos), | |
82 | array_definition->string->str, | |
83 | array_declaration->len); | |
84 | ctf_move_pos(pos, array_declaration->len * CHAR_BIT); | |
85 | return 0; | |
86 | } | |
87 | } | |
88 | } | |
89 | return array_rw(ppos, definition); | |
d06d03db | 90 | } |