projects / babeltrace.git / blame
| Commit | Line | Data |
|---|---|---|
| d06d03db MD |
1 | /* |
| 2 | * Common Trace Format | |
| 3 | * | |
| 4 | * Array 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. | |
| c462e188 MD |
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. | |
| d06d03db MD |
27 | */ |
| 28 | ||
| 29 | #include <babeltrace/ctf/types.h> | |
| 30 | ||
| 0d69b916 | 31 | int ctf_array_read(struct bt_stream_pos *ppos, struct bt_definition *definition) |
| d06d03db | 32 | { |
| 81dee1bb MD |
33 | struct definition_array *array_definition = |
| 34 | container_of(definition, struct definition_array, p); | |
| 35 | struct declaration_array *array_declaration = | |
| 36 | array_definition->declaration; | |
| ecc54f11 | 37 | struct bt_declaration *elem = array_declaration->elem; |
| 81dee1bb MD |
38 | struct ctf_stream_pos *pos = |
| 39 | container_of(ppos, struct ctf_stream_pos, parent); | |
| 40 | ||
| 41 | if (elem->id == CTF_TYPE_INTEGER) { | |
| 42 | struct declaration_integer *integer_declaration = | |
| 43 | container_of(elem, struct declaration_integer, p); | |
| 44 | ||
| 45 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
| 46 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
| 47 | ||
| 48 | if (integer_declaration->len == CHAR_BIT | |
| 49 | && integer_declaration->p.alignment == CHAR_BIT) { | |
| 50 | ||
| 51 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
| 52 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
| 53 | return -EFAULT; | |
| 54 | ||
| 55 | g_string_assign(array_definition->string, ""); | |
| 56 | g_string_insert_len(array_definition->string, | |
| 57 | 0, (char *) ctf_get_pos_addr(pos), | |
| 58 | array_declaration->len); | |
| 81dee1bb MD |
59 | } |
| 60 | } | |
| 61 | } | |
| dcaa2e7d | 62 | return bt_array_rw(ppos, definition); |
| 81dee1bb MD |
63 | } |
| 64 | ||
| 0d69b916 | 65 | int ctf_array_write(struct bt_stream_pos *ppos, struct bt_definition *definition) |
| 81dee1bb MD |
66 | { |
| 67 | struct definition_array *array_definition = | |
| 68 | container_of(definition, struct definition_array, p); | |
| 69 | struct declaration_array *array_declaration = | |
| 70 | array_definition->declaration; | |
| ecc54f11 | 71 | struct bt_declaration *elem = array_declaration->elem; |
| 81dee1bb MD |
72 | struct ctf_stream_pos *pos = |
| 73 | container_of(ppos, struct ctf_stream_pos, parent); | |
| 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 | ||
| 85 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
| 86 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
| 87 | return -EFAULT; | |
| 88 | ||
| 89 | memcpy((char *) ctf_get_pos_addr(pos), | |
| 90 | array_definition->string->str, | |
| 91 | array_declaration->len); | |
| 92 | ctf_move_pos(pos, array_declaration->len * CHAR_BIT); | |
| 93 | return 0; | |
| 94 | } | |
| 95 | } | |
| 96 | } | |
| dcaa2e7d | 97 | return bt_array_rw(ppos, definition); |
| d06d03db | 98 | } |