| 1 | /* |
| 2 | * BabelTrace - Sequence Type Converter |
| 3 | * |
| 4 | * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com> |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | #include <babeltrace/compiler.h> |
| 22 | #include <babeltrace/types.h> |
| 23 | |
| 24 | void sequence_copy(struct stream_pos *dest, const struct format *fdest, |
| 25 | struct stream_pos *src, const struct format *fsrc, |
| 26 | const struct type_class *type_class) |
| 27 | { |
| 28 | struct type_class_sequence *sequence_class = |
| 29 | container_of(type_class, struct type_class_sequence, p); |
| 30 | unsigned int i; |
| 31 | size_t len; |
| 32 | |
| 33 | fsrc->sequence_begin(src, sequence_class); |
| 34 | fdest->sequence_begin(dest, sequence_class); |
| 35 | |
| 36 | len = fsrc->uint_read(src, sequence_class->len_class); |
| 37 | fdest->uint_write(dest, sequence_class->len_class, len); |
| 38 | |
| 39 | for (i = 0; i < len; i++) { |
| 40 | struct type_class *elem_class = sequence_class->elem; |
| 41 | elem_class->copy(dest, fdest, src, fsrc, &elem_class->p); |
| 42 | } |
| 43 | fsrc->sequence_end(src, sequence_class); |
| 44 | fdest->sequence_end(dest, sequence_class); |
| 45 | } |
| 46 | |
| 47 | void sequence_type_free(struct type_class_sequence *sequence_class) |
| 48 | { |
| 49 | sequence_class->elem->free(&sequence_class->elem->p); |
| 50 | g_free(sequence_class); |
| 51 | } |
| 52 | |
| 53 | static void _sequence_type_free(struct type_class *type_class) |
| 54 | { |
| 55 | struct type_class_struct *sequence_class = |
| 56 | container_of(type_class, struct type_class_sequence, p); |
| 57 | sequence_type_free(sequence_class); |
| 58 | } |
| 59 | |
| 60 | struct type_class_sequence * |
| 61 | sequence_type_new(const char *name, struct type_class_integer *len_class, |
| 62 | struct type_class *elem) |
| 63 | { |
| 64 | struct type_class_sequence *sequence_class; |
| 65 | int ret; |
| 66 | |
| 67 | sequence_class = g_new(struct type_class_sequence, 1); |
| 68 | type_class = &float_class->p; |
| 69 | |
| 70 | assert(!len_class->signedness); |
| 71 | |
| 72 | sequence_class->len = len; |
| 73 | type_class->name = g_quark_from_string(name); |
| 74 | type_class->alignment = max(len_class->p.alignment, |
| 75 | elem->p.alignment); |
| 76 | type_class->copy = sequence_copy; |
| 77 | type_class->free = _sequence_type_free; |
| 78 | |
| 79 | if (type_class->name) { |
| 80 | ret = ctf_register_type(type_class); |
| 81 | if (ret) |
| 82 | goto error_register; |
| 83 | } |
| 84 | return sequence_class; |
| 85 | |
| 86 | error_register: |
| 87 | len_class->p.free(&len_class->p); |
| 88 | sequence_class->elem->free(&sequence_class->elem->p); |
| 89 | g_free(sequence_class); |
| 90 | return NULL; |
| 91 | } |