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[babeltrace.git] / formats / ctf / types / string.c
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1/*
2 * Common Trace Format
3 *
4 * Strings read/write functions.
5 *
ccd7e1c8 6 * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
6dc2ca62 7 *
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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:
de0ba614 14 *
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15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
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17 */
18
d79865b9 19#include <babeltrace/ctf/types.h>
a3dbc794 20#include <limits.h> /* C99 limits */
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21#include <string.h>
22
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23void ctf_string_copy(struct stream_pos *dest, struct stream_pos *src,
24 const struct type_class_string *string_class)
6dc2ca62 25{
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26 size_t len;
27 unsigned char *destaddr, *srcaddr;
6dc2ca62 28
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29 align_pos(src, string_class->p.alignment);
30 srcaddr = get_pos_addr(src);
31 len = strlen(srcaddr) + 1;
a52d7f6a 32 if (dest->dummy)
6dc2ca62 33 goto end;
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34 align_pos(dest, string_class->p.alignment);
35 destaddr = get_pos_addr(dest);
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36 strcpy(destaddr, srcaddr);
37end:
bed864a7 38 move_pos(dest, len);
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39 move_pos(src, len);
40}
41
42void ctf_string_read(unsigned char **dest, struct stream_pos *src,
43 const struct type_class_string *string_class)
44{
45 size_t len;
46 unsigned char *srcaddr;
47
48 align_pos(src, string_class->p.alignment);
49 srcaddr = get_pos_addr(src);
50 len = strlen(srcaddr) + 1;
a52d7f6a 51 *dest = g_realloc(*dest, len);
4c8bfb7e 52 strcpy(*dest, srcaddr);
6dc2ca62 53end:
bed864a7 54 move_pos(src, len);
6dc2ca62 55}
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56
57void ctf_string_write(struct stream_pos *dest, const unsigned char *src,
58 const struct type_class_string *string_class)
59{
60 size_t len;
61 unsigned char *destaddr;
62
63 align_pos(dest, string_class->p.alignment);
64 len = strlen(src) + 1;
65 if (dest->dummy)
66 goto end;
67 destaddr = get_pos_addr(dest);
68 strcpy(destaddr, src);
69end:
70 move_pos(dest, len);
71}
72
73void ctf_string_free_temp(unsigned char *string)
74{
75 g_free(string);
76}
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