Add missing permission notice in each source file
[babeltrace.git] / formats / ctf / types / sequence.c
1 /*
2 * Common Trace Format
3 *
4 * Sequence format access functions.
5 *
6 * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
7 *
8 * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
9 *
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:
16 *
17 * The above copyright notice and this permission notice shall be included in
18 * all copies or substantial portions of the Software.
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.
27 */
28
29 #include <babeltrace/ctf/types.h>
30
31 int ctf_sequence_read(struct stream_pos *ppos, struct definition *definition)
32 {
33 struct definition_sequence *sequence_definition =
34 container_of(definition, struct definition_sequence, p);
35 struct declaration_sequence *sequence_declaration =
36 sequence_definition->declaration;
37 struct declaration *elem = sequence_declaration->elem;
38 struct ctf_stream_pos *pos = ctf_pos(ppos);
39
40 if (elem->id == CTF_TYPE_INTEGER) {
41 struct declaration_integer *integer_declaration =
42 container_of(elem, struct declaration_integer, p);
43
44 if (integer_declaration->encoding == CTF_STRING_UTF8
45 || integer_declaration->encoding == CTF_STRING_ASCII) {
46
47 if (integer_declaration->len == CHAR_BIT
48 && integer_declaration->p.alignment == CHAR_BIT) {
49 uint64_t len = sequence_len(sequence_definition);
50
51 ctf_align_pos(pos, integer_declaration->p.alignment);
52 if (!ctf_pos_access_ok(pos, len * CHAR_BIT))
53 return -EFAULT;
54
55 g_string_assign(sequence_definition->string, "");
56 g_string_insert_len(sequence_definition->string,
57 0, (char *) ctf_get_pos_addr(pos), len);
58 ctf_move_pos(pos, len * CHAR_BIT);
59 return 0;
60 }
61 }
62 }
63 return sequence_rw(ppos, definition);
64 }
65
66 int ctf_sequence_write(struct stream_pos *ppos, struct definition *definition)
67 {
68 struct definition_sequence *sequence_definition =
69 container_of(definition, struct definition_sequence, p);
70 struct declaration_sequence *sequence_declaration =
71 sequence_definition->declaration;
72 struct declaration *elem = sequence_declaration->elem;
73 struct ctf_stream_pos *pos = ctf_pos(ppos);
74
75 if (elem->id == CTF_TYPE_INTEGER) {
76 struct declaration_integer *integer_declaration =
77 container_of(elem, struct declaration_integer, p);
78
79 if (integer_declaration->encoding == CTF_STRING_UTF8
80 || integer_declaration->encoding == CTF_STRING_ASCII) {
81
82 if (integer_declaration->len == CHAR_BIT
83 && integer_declaration->p.alignment == CHAR_BIT) {
84 uint64_t len = sequence_len(sequence_definition);
85
86 ctf_align_pos(pos, integer_declaration->p.alignment);
87 if (!ctf_pos_access_ok(pos, len * CHAR_BIT))
88 return -EFAULT;
89
90 memcpy((char *) ctf_get_pos_addr(pos),
91 sequence_definition->string->str, len);
92 ctf_move_pos(pos, len * CHAR_BIT);
93 return 0;
94 }
95 }
96 }
97 return sequence_rw(ppos, definition);
98 }
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