projects / babeltrace.git / blame
| Commit | Line | Data |
|---|---|---|
| d06d03db MD |
1 | /* |
| 2 | * Common Trace Format | |
| 3 | * | |
| 4 | * Array format access functions. | |
| 5 | * | |
| ccd7e1c8 | 6 | * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| d06d03db | 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: | |
| d06d03db | 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. | |
| d06d03db MD |
17 | */ |
| 18 | ||
| 19 | #include <babeltrace/ctf/types.h> | |
| 20 | ||
| 81dee1bb | 21 | int ctf_array_read(struct stream_pos *ppos, struct definition *definition) |
| d06d03db | 22 | { |
| 81dee1bb MD |
23 | struct definition_array *array_definition = |
| 24 | container_of(definition, struct definition_array, p); | |
| 25 | struct declaration_array *array_declaration = | |
| 26 | array_definition->declaration; | |
| 27 | struct declaration *elem = array_declaration->elem; | |
| 28 | struct ctf_stream_pos *pos = | |
| 29 | container_of(ppos, struct ctf_stream_pos, parent); | |
| 30 | ||
| 31 | if (elem->id == CTF_TYPE_INTEGER) { | |
| 32 | struct declaration_integer *integer_declaration = | |
| 33 | container_of(elem, struct declaration_integer, p); | |
| 34 | ||
| 35 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
| 36 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
| 37 | ||
| 38 | if (integer_declaration->len == CHAR_BIT | |
| 39 | && integer_declaration->p.alignment == CHAR_BIT) { | |
| 40 | ||
| 41 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
| 42 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
| 43 | return -EFAULT; | |
| 44 | ||
| 45 | g_string_assign(array_definition->string, ""); | |
| 46 | g_string_insert_len(array_definition->string, | |
| 47 | 0, (char *) ctf_get_pos_addr(pos), | |
| 48 | array_declaration->len); | |
| 49 | ctf_move_pos(pos, array_declaration->len * CHAR_BIT); | |
| 50 | return 0; | |
| 51 | } | |
| 52 | } | |
| 53 | } | |
| 54 | return array_rw(ppos, definition); | |
| 55 | } | |
| 56 | ||
| 57 | int ctf_array_write(struct stream_pos *ppos, struct definition *definition) | |
| 58 | { | |
| 59 | struct definition_array *array_definition = | |
| 60 | container_of(definition, struct definition_array, p); | |
| 61 | struct declaration_array *array_declaration = | |
| 62 | array_definition->declaration; | |
| 63 | struct declaration *elem = array_declaration->elem; | |
| 64 | struct ctf_stream_pos *pos = | |
| 65 | container_of(ppos, struct ctf_stream_pos, parent); | |
| 66 | ||
| 67 | if (elem->id == CTF_TYPE_INTEGER) { | |
| 68 | struct declaration_integer *integer_declaration = | |
| 69 | container_of(elem, struct declaration_integer, p); | |
| 70 | ||
| 71 | if (integer_declaration->encoding == CTF_STRING_UTF8 | |
| 72 | || integer_declaration->encoding == CTF_STRING_ASCII) { | |
| 73 | ||
| 74 | if (integer_declaration->len == CHAR_BIT | |
| 75 | && integer_declaration->p.alignment == CHAR_BIT) { | |
| 76 | ||
| 77 | ctf_align_pos(pos, integer_declaration->p.alignment); | |
| 78 | if (!ctf_pos_access_ok(pos, array_declaration->len * CHAR_BIT)) | |
| 79 | return -EFAULT; | |
| 80 | ||
| 81 | memcpy((char *) ctf_get_pos_addr(pos), | |
| 82 | array_definition->string->str, | |
| 83 | array_declaration->len); | |
| 84 | ctf_move_pos(pos, array_declaration->len * CHAR_BIT); | |
| 85 | return 0; | |
| 86 | } | |
| 87 | } | |
| 88 | } | |
| 89 | return array_rw(ppos, definition); | |
| d06d03db | 90 | } |