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. | |
| d06d03db MD |
19 | */ |
| 20 | ||
| 21 | #include <babeltrace/ctf/types.h> | |
| 22 | ||
| 81dee1bb | 23 | int ctf_array_read(struct stream_pos *ppos, struct definition *definition) |
| d06d03db | 24 | { |
| 81dee1bb MD |
25 | struct definition_array *array_definition = |
| 26 | container_of(definition, struct definition_array, p); | |
| 27 | struct declaration_array *array_declaration = | |
| 28 | array_definition->declaration; | |
| 29 | struct declaration *elem = array_declaration->elem; | |
| 30 | struct ctf_stream_pos *pos = | |
| 31 | container_of(ppos, struct ctf_stream_pos, parent); | |
| 32 | ||
| 33 | if (elem->id == CTF_TYPE_INTEGER) { | |
| 34 | struct declaration_integer *integer_declaration = | |
| 35 | container_of(elem, struct declaration_integer, p); | |
| 36 | ||
| 37 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
| 38 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
| 39 | ||
| 40 | if (integer_declaration->len == CHAR_BIT | |
| 41 | && integer_declaration->p.alignment == CHAR_BIT) { | |
| 42 | ||
| 43 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
| 44 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
| 45 | return -EFAULT; | |
| 46 | ||
| 47 | g_string_assign(array_definition->string, ""); | |
| 48 | g_string_insert_len(array_definition->string, | |
| 49 | 0, (char *) ctf_get_pos_addr(pos), | |
| 50 | array_declaration->len); | |
| 51 | ctf_move_pos(pos, array_declaration->len * CHAR_BIT); | |
| 52 | return 0; | |
| 53 | } | |
| 54 | } | |
| 55 | } | |
| 56 | return array_rw(ppos, definition); | |
| 57 | } | |
| 58 | ||
| 59 | int ctf_array_write(struct stream_pos *ppos, struct definition *definition) | |
| 60 | { | |
| 61 | struct definition_array *array_definition = | |
| 62 | container_of(definition, struct definition_array, p); | |
| 63 | struct declaration_array *array_declaration = | |
| 64 | array_definition->declaration; | |
| 65 | struct declaration *elem = array_declaration->elem; | |
| 66 | struct ctf_stream_pos *pos = | |
| 67 | container_of(ppos, struct ctf_stream_pos, parent); | |
| 68 | ||
| 69 | if (elem->id == CTF_TYPE_INTEGER) { | |
| 70 | struct declaration_integer *integer_declaration = | |
| 71 | container_of(elem, struct declaration_integer, p); | |
| 72 | ||
| 73 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
| 74 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
| 75 | ||
| 76 | if (integer_declaration->len == CHAR_BIT | |
| 77 | && integer_declaration->p.alignment == CHAR_BIT) { | |
| 78 | ||
| 79 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
| 80 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
| 81 | return -EFAULT; | |
| 82 | ||
| 83 | memcpy((char *) ctf_get_pos_addr(pos), | |
| 84 | array_definition->string->str, | |
| 85 | array_declaration->len); | |
| 86 | ctf_move_pos(pos, array_declaration->len * CHAR_BIT); | |
| 87 | return 0; | |
| 88 | } | |
| 89 | } | |
| 90 | } | |
| 91 | return array_rw(ppos, definition); | |
| d06d03db | 92 | } |