Add float type class to babeltrace types
[babeltrace.git] / include / babeltrace / ctf / types.h
1 #ifndef _BABELTRACE_CTF_TYPES_H
2 #define _BABELTRACE_CTF_TYPES_H
3
4 /*
5 * Common Trace Format
6 *
7 * Type header
8 *
9 * Copyright (c) 2010 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
10 *
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Lesser General Public
13 * License as published by the Free Software Foundation; either
14 * version 2.1 of the License, or (at your option) any later version.
15 *
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public
22 * License along with this library; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 */
25
26 #include <stdint.h>
27 #include <glib.h>
28
29 /*
30 * IMPORTANT: All lengths (len) and offsets (start, end) are expressed in bits,
31 * *not* in bytes.
32 *
33 * All write primitives, as well as read for dynamically sized entities, can
34 * receive a NULL ptr/dest parameter. In this case, no write is performed, but
35 * the size is returned.
36 */
37
38 uint64_t ctf_uint_read(const unsigned char *ptr, int byte_order, size_t len);
39 int64_t ctf_int_read(const unsigned char *ptr, int byte_order, size_t len);
40 size_t ctf_uint_write(unsigned char *ptr, int byte_order, size_t len, uint64_t v);
41 size_t ctf_int_write(unsigned char *ptr, int byte_order, size_t len, int64_t v);
42
43 uint64_t ctf_bitfield_unsigned_read(const unsigned char *ptr,
44 unsigned long start, unsigned long len,
45 int byte_order);
46 int64_t ctf_bitfield_signed_read(const unsigned char *ptr,
47 unsigned long start, unsigned long len,
48 int byte_order);
49 size_t ctf_bitfield_unsigned_write(unsigned char *ptr,
50 unsigned long start, unsigned long len,
51 int byte_order, uint64_t v);
52 size_t ctf_bitfield_signed_write(unsigned char *ptr,
53 unsigned long start, unsigned long len,
54 int byte_order, int64_t v);
55
56 double ctf_double_read(const unsigned char *ptr, const struct type_class_float *src);
57 size_t ctf_double_write(unsigned char *ptr, const struct type_class_float *dest,
58 double v);
59 long double ctf_ldouble_read(const unsigned char *ptr,
60 const struct type_class_float *src);
61 size_t ctf_ldouble_write(unsigned char *ptr, const struct type_class_float *dest,
62 long double v);
63 void ctf_float_copy(unsigned char *destp, const struct type_class_float *dest,
64 const unsigned char *srcp, const struct type_class_float *src);
65
66 size_t ctf_string_copy(unsigned char *dest, const unsigned char *src);
67
68 /*
69 * A GQuark can be translated to/from strings with g_quark_from_string() and
70 * g_quark_to_string().
71 */
72 GQuark ctf_enum_uint_to_quark(const struct enum_table *table, uint64_t v);
73 GQuark ctf_enum_int_to_quark(const struct enum_table *table, uint64_t v);
74 uint64_t ctf_enum_quark_to_uint(size_t len, int byte_order, GQuark q);
75 int64_t ctf_enum_quark_to_int(size_t len, int byte_order, GQuark q);
76 void ctf_enum_signed_insert(struct enum_table *table, int64_t v, GQuark q);
77 void ctf_enum_unsigned_insert(struct enum_table *table, uint64_t v, GQuark q);
78 struct enum_table *ctf_enum_new(void);
79 void ctf_enum_destroy(struct enum_table *table);
80
81 #endif /* _BABELTRACE_CTF_TYPES_H */
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