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d06d03db MD |
1 | /* |
2 | * Common Trace Format | |
3 | * | |
4 | * Sequence 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. | |
d06d03db MD |
19 | */ |
20 | ||
21 | #include <babeltrace/ctf/types.h> | |
22 | ||
81dee1bb | 23 | int ctf_sequence_read(struct stream_pos *ppos, struct definition *definition) |
d06d03db | 24 | { |
81dee1bb MD |
25 | struct definition_sequence *sequence_definition = |
26 | container_of(definition, struct definition_sequence, p); | |
27 | struct declaration_sequence *sequence_declaration = | |
28 | sequence_definition->declaration; | |
29 | struct declaration *elem = sequence_declaration->elem; | |
46322b33 MD |
30 | struct ctf_stream_pos *pos = ctf_pos(ppos); |
31 | ||
81dee1bb MD |
32 | if (elem->id == CTF_TYPE_INTEGER) { |
33 | struct declaration_integer *integer_declaration = | |
34 | container_of(elem, struct declaration_integer, p); | |
35 | ||
36 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
37 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
38 | ||
39 | if (integer_declaration->len == CHAR_BIT | |
40 | && integer_declaration->p.alignment == CHAR_BIT) { | |
41 | uint64_t len = sequence_len(sequence_definition); | |
42 | ||
43 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
44 | if (!ctf_pos_access_ok(pos, len * CHAR_BIT)) | |
45 | return -EFAULT; | |
46 | ||
47 | g_string_assign(sequence_definition->string, ""); | |
48 | g_string_insert_len(sequence_definition->string, | |
49 | 0, (char *) ctf_get_pos_addr(pos), len); | |
50 | ctf_move_pos(pos, len * CHAR_BIT); | |
51 | return 0; | |
52 | } | |
53 | } | |
54 | } | |
55 | return sequence_rw(ppos, definition); | |
56 | } | |
57 | ||
58 | int ctf_sequence_write(struct stream_pos *ppos, struct definition *definition) | |
59 | { | |
60 | struct definition_sequence *sequence_definition = | |
61 | container_of(definition, struct definition_sequence, p); | |
62 | struct declaration_sequence *sequence_declaration = | |
63 | sequence_definition->declaration; | |
64 | struct declaration *elem = sequence_declaration->elem; | |
65 | struct ctf_stream_pos *pos = ctf_pos(ppos); | |
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 | uint64_t len = sequence_len(sequence_definition); | |
77 | ||
78 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
79 | if (!ctf_pos_access_ok(pos, len * CHAR_BIT)) | |
80 | return -EFAULT; | |
81 | ||
82 | memcpy((char *) ctf_get_pos_addr(pos), | |
83 | sequence_definition->string->str, len); | |
84 | ctf_move_pos(pos, len * CHAR_BIT); | |
85 | return 0; | |
86 | } | |
87 | } | |
88 | } | |
c5e74408 | 89 | return sequence_rw(ppos, definition); |
d06d03db | 90 | } |