projects / babeltrace.git / blame
| Commit | Line | Data |
|---|---|---|
| fc93b2bd MD |
1 | /* |
| 2 | * BabelTrace - Integer 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> | |
| 698f0fe4 | 22 | #include <babeltrace/align.h> |
| fc93b2bd MD |
23 | #include <stdint.h> |
| 24 | ||
| 698f0fe4 | 25 | size_t integer_copy(unsigned char *dest, const struct format *fdest, |
| fc93b2bd MD |
26 | const unsigned char *src, const struct format *fsrc, |
| 27 | const struct type_class *type_class) | |
| 28 | { | |
| 29 | struct type_class_integer *int_class = | |
| 30 | container_of(type_class, struct type_class_integer, p); | |
| 31 | ||
| 698f0fe4 MD |
32 | if (fsrc->p.alignment) |
| 33 | src = PTR_ALIGN(src, fsrc->p.alignment / CHAR_BIT); | |
| 34 | if (fdest->p.alignment) | |
| 35 | dest = PTR_ALIGN(dest, fdest->p.alignment / CHAR_BIT); | |
| 36 | ||
| fc93b2bd MD |
37 | if (!int_class->signedness) { |
| 38 | uint64_t v; | |
| 39 | ||
| 698f0fe4 MD |
40 | v = fsrc->uint_read(src, int_class->len, int_class->byte_order); |
| 41 | return fdest->uint_write(dest, int_class->len, int_class->byte_order, v); | |
| fc93b2bd MD |
42 | } else { |
| 43 | int64_t v; | |
| 44 | ||
| 698f0fe4 MD |
45 | v = fsrc->int_read(src, int_class->len, int_class->byte_order); |
| 46 | return fdest->int_write(dest, int_class->len, int_class->byte_order, v); | |
| fc93b2bd MD |
47 | } |
| 48 | } | |
| 698f0fe4 MD |
49 | |
| 50 | int integer_type_new(const char *name, size_t alignment, size_t len, | |
| 51 | int byte_order, int signedness) | |
| 52 | { | |
| 53 | struct type_class_integer int_class; | |
| 54 | int ret; | |
| 55 | ||
| 56 | /* | |
| 57 | * Freed when type is unregistered. | |
| 58 | */ | |
| 59 | int_class = g_new(struct type_class_integer, 1); | |
| 60 | int_class->p.name = g_quark_from_string(name); | |
| 61 | int_class->p.alignment = alignment; | |
| 62 | int_class->p.copy = integer_copy; | |
| 63 | int_class->len = len; | |
| 64 | int_class->byte_order = byte_order; | |
| 65 | int_class->signedness = signedness; | |
| 66 | ret = ctf_register_type(&int_class.p); | |
| 67 | if (ret) | |
| 68 | g_free(int_class); | |
| 69 | return ret; | |
| 70 | } | |
| 71 | ||
| 72 | /* TODO: integer_type_free */ |