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0a46062b MD |
1 | /* |
2 | * BabelTrace - Float 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> | |
448d3cc7 | 22 | #include <babeltrace/types.h> |
0a46062b MD |
23 | |
24 | size_t float_copy(unsigned char *dest, const struct format *fdest, | |
25 | const unsigned char *src, const struct format *fsrc, | |
26 | const struct type_class *type_class) | |
27 | { | |
28 | struct type_class_float *float_class = | |
29 | container_of(type_class, struct type_class_float, p); | |
30 | ||
31 | if (fsrc->float_copy == fdest->float_copy) { | |
32 | fsrc->float_copy(dest, float_class, src, float_class); | |
33 | return float_class->mantissa_len + float_class->exp_len; | |
34 | } else { | |
35 | double v; | |
36 | ||
37 | v = fsrc->double_read(src, fsrc); | |
38 | return fdest->double_write(dest, fdest, v); | |
39 | } | |
40 | } | |
41 | ||
90b676d7 MD |
42 | void float_type_free(struct type_class_float *float_class) |
43 | { | |
44 | g_free(float_class); | |
45 | } | |
46 | ||
47 | static void _float_type_free(struct type_class *type_class) | |
48 | { | |
49 | struct type_class_float *float_class = | |
50 | container_of(type_class, struct type_class_float, p); | |
51 | float_type_free(float_class); | |
52 | } | |
53 | ||
0a46062b MD |
54 | struct type_class_float *float_type_new(const char *name, |
55 | size_t mantissa_len, | |
56 | size_t exp_len, int byte_order, | |
57 | size_t alignment) | |
58 | { | |
59 | struct type_class_float *float_class; | |
60 | int ret; | |
61 | ||
0a46062b MD |
62 | float_class = g_new(struct type_class_float, 1); |
63 | float_class->p.name = g_quark_from_string(name); | |
64 | float_class->p.alignment = alignment; | |
90b676d7 MD |
65 | float_class->p.copy = float_copy; |
66 | float_class->p.free = _float_type_free; | |
0a46062b MD |
67 | float_class->mantissa_len = mantissa_len; |
68 | float_class->exp_len = exp_len; | |
69 | float_class->byte_order = byte_order; | |
70 | if (float_class->p.name) { | |
71 | ret = ctf_register_type(&float_class->p); | |
72 | if (ret) { | |
73 | g_free(float_class); | |
74 | return NULL; | |
75 | } | |
76 | } | |
77 | return float_class; | |
78 | } |