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 | ||
| 17 | /* | |
| 18 | * ctf_bitfield_unsigned_read and ctf_bitfield_signed_read are defined by | |
| 19 | * bitfield.h. | |
| 20 | * | |
| 21 | * The write primitives below are provided as wrappers over | |
| 22 | * ctf_bitfield_write_le and ctf_bitfield_write_be to specify per-byte write of | |
| 23 | * signed/unsigned integers through a standard API. | |
| 24 | */ | |
| 25 | ||
| 26 | static inline | |
| 27 | size_t ctf_bitfield_unsigned_write(uint8_t *ptr, | |
| 28 | unsigned long start, unsigned long len, | |
| 29 | int byte_order, uint64_t v) | |
| 30 | { | |
| 31 | if (!ptr) | |
| 32 | goto end; | |
| 33 | if (byte_order == LITTLE_ENDIAN) | |
| 34 | ctf_bitfield_write_le(ptr, start, len, v); | |
| 35 | else | |
| 36 | ctf_bitfield_write_be(ptr, start, len, v); | |
| 37 | end: | |
| 38 | return len; | |
| 39 | } | |
| 40 | ||
| 41 | static inline | |
| 42 | size_t ctf_bitfield_signed_write(uint8_t *ptr, | |
| 43 | unsigned long start, unsigned long len, | |
| 44 | int byte_order, int64_t v) | |
| 45 | { | |
| 46 | if (!ptr) | |
| 47 | goto end; | |
| 48 | if (byte_order == LITTLE_ENDIAN) | |
| 49 | ctf_bitfield_write_le(ptr, start, len, v); | |
| 50 | else | |
| 51 | ctf_bitfield_write_be(ptr, start, len, v); | |
| 52 | end: | |
| 53 | return len; | |
| 54 | } | |
| 55 | ||
| 56 | #endif /* _CTF_TYPES_BITFIELD_H */ |