Commit | Line | Data |
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6dc2ca62 MD |
1 | /* |
2 | * Common Trace Format | |
3 | * | |
4 | * Strings read/write functions. | |
5 | * | |
ccd7e1c8 | 6 | * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
6dc2ca62 | 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: | |
de0ba614 | 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. | |
6dc2ca62 MD |
17 | */ |
18 | ||
d79865b9 | 19 | #include <babeltrace/ctf/types.h> |
a3dbc794 | 20 | #include <limits.h> /* C99 limits */ |
6dc2ca62 MD |
21 | #include <string.h> |
22 | ||
46322b33 | 23 | void ctf_string_copy(struct stream_pos *pdest, struct stream_pos *psrc, |
f6625916 | 24 | const struct declaration_string *string_declaration) |
6dc2ca62 | 25 | { |
46322b33 MD |
26 | struct ctf_stream_pos *dest = ctf_pos(pdest); |
27 | struct ctf_stream_pos *src = ctf_pos(psrc); | |
bed864a7 | 28 | size_t len; |
47e0f2e2 | 29 | char *destaddr, *srcaddr; |
6dc2ca62 | 30 | |
46322b33 MD |
31 | ctf_align_pos(src, string_declaration->p.alignment); |
32 | srcaddr = ctf_get_pos_addr(src); | |
bed864a7 | 33 | len = strlen(srcaddr) + 1; |
a52d7f6a | 34 | if (dest->dummy) |
6dc2ca62 | 35 | goto end; |
46322b33 MD |
36 | ctf_align_pos(dest, string_declaration->p.alignment); |
37 | destaddr = ctf_get_pos_addr(dest); | |
a52d7f6a MD |
38 | strcpy(destaddr, srcaddr); |
39 | end: | |
46322b33 MD |
40 | ctf_move_pos(dest, len); |
41 | ctf_move_pos(src, len); | |
a52d7f6a MD |
42 | } |
43 | ||
d11e9c49 | 44 | void ctf_string_read(struct stream_pos *ppos, struct definition *definition) |
a52d7f6a | 45 | { |
d11e9c49 MD |
46 | struct definition_string *string_definition = |
47 | container_of(definition, struct definition_string, p); | |
48 | const struct declaration_string *string_declaration = | |
49 | string_definition->declaration; | |
50 | struct ctf_stream_pos *pos = ctf_pos(ppos); | |
a52d7f6a | 51 | size_t len; |
47e0f2e2 | 52 | char *srcaddr; |
a52d7f6a | 53 | |
d11e9c49 MD |
54 | ctf_align_pos(pos, string_declaration->p.alignment); |
55 | srcaddr = ctf_get_pos_addr(pos); | |
a52d7f6a | 56 | len = strlen(srcaddr) + 1; |
d11e9c49 MD |
57 | if (string_definition->alloc_len < len) { |
58 | string_definition->value = | |
59 | g_realloc(string_definition->value, len); | |
60 | string_definition->alloc_len = len; | |
61 | } | |
62 | memcpy(string_definition->value, srcaddr, len); | |
63 | string_definition->len = len; | |
64 | ctf_move_pos(pos, len); | |
6dc2ca62 | 65 | } |
a52d7f6a | 66 | |
d11e9c49 MD |
67 | void ctf_string_write(struct stream_pos *ppos, |
68 | struct definition *definition) | |
a52d7f6a | 69 | { |
d11e9c49 MD |
70 | struct definition_string *string_definition = |
71 | container_of(definition, struct definition_string, p); | |
72 | const struct declaration_string *string_declaration = | |
73 | string_definition->declaration; | |
74 | struct ctf_stream_pos *pos = ctf_pos(ppos); | |
a52d7f6a | 75 | size_t len; |
47e0f2e2 | 76 | char *destaddr; |
a52d7f6a | 77 | |
d11e9c49 MD |
78 | ctf_align_pos(pos, string_declaration->p.alignment); |
79 | assert(string_definition->value != NULL); | |
80 | len = string_definition->len; | |
81 | if (pos->dummy) | |
a52d7f6a | 82 | goto end; |
d11e9c49 MD |
83 | destaddr = ctf_get_pos_addr(pos); |
84 | strcpy(destaddr, string_definition->value); | |
a52d7f6a | 85 | end: |
d11e9c49 | 86 | ctf_move_pos(pos, len); |
a52d7f6a | 87 | } |