projects / babeltrace.git / blame
| Commit | Line | Data |
|---|---|---|
| 6dc2ca62 MD |
1 | #ifndef _CTF_TYPES_BITFIELD_H |
| 2 | #define _CTF_TYPES_BITFIELD_H | |
| 3 | ||
| 4 | /* | |
| 5 | * Common Trace Format | |
| 6 | * | |
| 7 | * Bitfields read/write functions. | |
| 8 | * | |
| 9 | * Copyright 2010 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com> | |
| 10 | * | |
| 11 | * Dual LGPL v2.1/GPL v2 license. | |
| 12 | */ | |
| 13 | ||
| 14 | #include <ctf/bitfield.h> | |
| 15 | #include <endian.h> | |
| 16 | ||
| 08228826 MD |
17 | static inline |
| 18 | uint64_t ctf_bitfield_unsigned_read(const uint8_t *ptr, | |
| 19 | unsigned long start, unsigned long len, | |
| 20 | int byte_order) | |
| 21 | { | |
| 22 | uint64_t v; | |
| 23 | ||
| 24 | if (byte_order == LITTLE_ENDIAN) | |
| 25 | ctf_bitfield_read_le(ptr, start, len, &v); | |
| 26 | else | |
| 27 | ctf_bitfield_read_be(ptr, start, len, &v); | |
| 28 | return v; | |
| 29 | } | |
| 30 | ||
| 31 | static inline | |
| 32 | int64_t ctf_bitfield_signed_read(const uint8_t *ptr, | |
| 33 | unsigned long start, unsigned long len, | |
| 34 | int byte_order) | |
| 35 | { | |
| 36 | int64_t v; | |
| 37 | ||
| 38 | if (byte_order == LITTLE_ENDIAN) | |
| 39 | ctf_bitfield_read_le(ptr, start, len, &v); | |
| 40 | else | |
| 41 | ctf_bitfield_read_be(ptr, start, len, &v); | |
| 42 | return v; | |
| 43 | } | |
| 6dc2ca62 MD |
44 | |
| 45 | static inline | |
| 46 | size_t ctf_bitfield_unsigned_write(uint8_t *ptr, | |
| 47 | unsigned long start, unsigned long len, | |
| 48 | int byte_order, uint64_t v) | |
| 49 | { | |
| 50 | if (!ptr) | |
| 51 | goto end; | |
| 52 | if (byte_order == LITTLE_ENDIAN) | |
| 53 | ctf_bitfield_write_le(ptr, start, len, v); | |
| 54 | else | |
| 55 | ctf_bitfield_write_be(ptr, start, len, v); | |
| 56 | end: | |
| 57 | return len; | |
| 58 | } | |
| 59 | ||
| 60 | static inline | |
| 61 | size_t ctf_bitfield_signed_write(uint8_t *ptr, | |
| 62 | unsigned long start, unsigned long len, | |
| 63 | int byte_order, int64_t v) | |
| 64 | { | |
| 65 | if (!ptr) | |
| 66 | goto end; | |
| 67 | if (byte_order == LITTLE_ENDIAN) | |
| 68 | ctf_bitfield_write_le(ptr, start, len, v); | |
| 69 | else | |
| 70 | ctf_bitfield_write_be(ptr, start, len, v); | |
| 71 | end: | |
| 72 | return len; | |
| 73 | } | |
| 74 | ||
| 75 | #endif /* _CTF_TYPES_BITFIELD_H */ |