Add stddef.h include for offsetof
[babeltrace.git] / formats / ctf / types / string.c
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1/*
2 * Common Trace Format
3 *
4 * Strings read/write functions.
5 *
de0ba614 6 * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6dc2ca62 7 *
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8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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21 */
22
d79865b9 23#include <babeltrace/ctf/types.h>
a3dbc794 24#include <limits.h> /* C99 limits */
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25#include <string.h>
26
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27void ctf_string_copy(struct stream_pos *dest, struct stream_pos *src,
28 const struct type_class_string *string_class)
6dc2ca62 29{
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30 size_t len;
31 unsigned char *destaddr, *srcaddr;
6dc2ca62 32
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33 align_pos(src, string_class->p.alignment);
34 srcaddr = get_pos_addr(src);
35 len = strlen(srcaddr) + 1;
a52d7f6a 36 if (dest->dummy)
6dc2ca62 37 goto end;
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38 align_pos(dest, string_class->p.alignment);
39 destaddr = get_pos_addr(dest);
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40 strcpy(destaddr, srcaddr);
41end:
bed864a7 42 move_pos(dest, len);
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43 move_pos(src, len);
44}
45
46void ctf_string_read(unsigned char **dest, struct stream_pos *src,
47 const struct type_class_string *string_class)
48{
49 size_t len;
50 unsigned char *srcaddr;
51
52 align_pos(src, string_class->p.alignment);
53 srcaddr = get_pos_addr(src);
54 len = strlen(srcaddr) + 1;
55 if (dest->dummy)
56 goto end;
57 *dest = g_realloc(*dest, len);
58 strcpy(dest, srcaddr);
6dc2ca62 59end:
bed864a7 60 move_pos(src, len);
6dc2ca62 61}
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62
63void ctf_string_write(struct stream_pos *dest, const unsigned char *src,
64 const struct type_class_string *string_class)
65{
66 size_t len;
67 unsigned char *destaddr;
68
69 align_pos(dest, string_class->p.alignment);
70 len = strlen(src) + 1;
71 if (dest->dummy)
72 goto end;
73 destaddr = get_pos_addr(dest);
74 strcpy(destaddr, src);
75end:
76 move_pos(dest, len);
77}
78
79void ctf_string_free_temp(unsigned char *string)
80{
81 g_free(string);
82}
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