backends/flint/flint_io.h File Reference

Wrappers for low-level POSIX I/O routines. More...

#include <sys/types.h>
#include "safefcntl.h"
#include "safeunistd.h"

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Functions
bool	flint_io_sync (int fd)
	Ensure all data previously written to file descriptor fd has been written to disk.
size_t	flint_io_read (int fd, char *p, size_t n, size_t min)
	Read n bytes (or until EOF) into block pointed to by p from file descriptor fd.
void	flint_io_write (int fd, const char *p, size_t n)
	Write n bytes from block pointed to by p to file descriptor fd.

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Detailed Description

Wrappers for low-level POSIX I/O routines.

Definition in file flint_io.h.

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Function Documentation

bool flint_io_sync

(

int

fd

)

[inline]

Ensure all data previously written to file descriptor fd has been written to disk.

Returns false if this could not be done.

Definition at line 33 of file flint_io.h.

Referenced by FlintTable::commit().

size_t flint_io_read	(	int	fd,
		char *	p,
		size_t	n,
		size_t	min
	)

Read n bytes (or until EOF) into block pointed to by p from file descriptor fd.

If less than min bytes are read, throw an exception.

Returns the number of bytes actually read.

Definition at line 30 of file flint_io.cc.

Referenced by FlintVersion::read_and_check(), and FlintTable::read_block().

void flint_io_write	(	int	fd,
		const char *	p,
		size_t	n
	)

Write n bytes from block pointed to by p to file descriptor fd.

Definition at line 51 of file flint_io.cc.

Referenced by FlintVersion::create(), and FlintTable::write_block().

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