fec_read.cpp File Reference

#include <fcntl.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <fec.h>
#include "fec_private.h"

Include dependency graph for fec_read.cpp:

Typedefs
using	rs_unique_ptr = std::unique_ptr< void, decltype(&free_rs_char)>

Functions
static void	dump (const char *name, uint64_t value, const uint8_t *data, size_t size)
static bool	is_erasure (fec_handle *f, uint64_t offset, const uint8_t *data)
static bool	is_zero (fec_handle *f, uint64_t offset)
static int	__ecc_read (fec_handle *f, void *rs, uint8_t *dest, uint64_t offset, bool use_erasures, uint8_t *ecc_data, size_t *errors)
static int	ecc_init (fec_handle *f, rs_unique_ptr &rs, std::unique_ptr< uint8_t[]> &ecc_data)
static ssize_t	ecc_read (fec_handle *f, uint8_t *dest, size_t count, uint64_t offset, size_t *errors)
static ssize_t	verity_read (fec_handle *f, uint8_t *dest, size_t count, uint64_t offset, size_t *errors)
int	fec_seek (struct fec_handle *f, int64_t offset, int whence)
ssize_t	fec_read (struct fec_handle *f, void *buf, size_t count)
static size_t	get_max_count (uint64_t offset, size_t count, uint64_t max)
bool	raw_pread (int fd, void *buf, size_t count, uint64_t offset)
bool	raw_pwrite (int fd, const void *buf, size_t count, uint64_t offset)
ssize_t	fec_pread (struct fec_handle *f, void *buf, size_t count, uint64_t offset)

Typedef Documentation

rs_unique_ptr

using rs_unique_ptr = std::unique_ptr<void, decltype(&free_rs_char)>

Function Documentation

__ecc_read()

static int __ecc_read ( fec_handle *  f, void *  rs, uint8_t *  dest, uint64_t  offset, bool  use_erasures, uint8_t *  ecc_data, size_t *  errors  )

static

dump()

static void dump ( const char *  name, uint64_t  value, const uint8_t *  data, size_t  size  )

static

ecc_init()

static int ecc_init ( fec_handle *  f, rs_unique_ptr &  rs, std::unique_ptr< uint8_t[]> &  ecc_data  )

static

ecc_read()

static ssize_t ecc_read ( fec_handle *  f, uint8_t *  dest, size_t  count, uint64_t  offset, size_t *  errors  )

static

fec_pread()

ssize_t fec_pread	(	struct fec_handle *	f,
		void *	buf,
		size_t	count,
		uint64_t	offset
	)

fec_read()

ssize_t fec_read	(	struct fec_handle *	f,
		void *	buf,
		size_t	count
	)

fec_seek()

int fec_seek	(	struct fec_handle *	f,
		int64_t	offset,
		int	whence
	)

get_max_count()

static size_t get_max_count ( uint64_t  offset, size_t  count, uint64_t  max  )

inlinestatic

is_erasure()

static bool is_erasure ( fec_handle *  f, uint64_t  offset, const uint8_t *  data  )

inlinestatic

is_zero()

static bool is_zero ( fec_handle *  f, uint64_t  offset  )

inlinestatic

raw_pread()

bool raw_pread	(	int	fd,
		void *	buf,
		size_t	count,
		uint64_t	offset
	)

raw_pwrite()

bool raw_pwrite	(	int	fd,
		const void *	buf,
		size_t	count,
		uint64_t	offset
	)

verity_read()

static ssize_t verity_read ( fec_handle *  f, uint8_t *  dest, size_t  count, uint64_t  offset, size_t *  errors  )

static