template <class charT, class traits = char_traits <charT> > class basic_fdbuf : public basic_streambuf <charT, traits>

Basic file descriptors stream buffer

Inheritance:

Public Methods

basic_fdbuf (int fdin, int fdout) Constructor

Protected Fields

int	fFdIn Inpput file descriptor
int	fFdOut Inpput file descriptor
static const streamsize	fBufferSize size of input data buffer
char_type	fBuffer [fBufferSize] Input data buffer

Protected Methods

virtual int_type	underflow () Read one character
virtual int_type	overflow (int_type c = traits::eof()) Write one character
virtual streamsize	xsputn (const char_type* s, streamsize num) Write multiple characters
virtual pos_type	seekoff (off_type off, ios_base::seekdir way, ios_base::openmode which = ios_base::in | ios_base::out) Seek with offset
virtual pos_type	seekpos (pos_type sp, ios_base::openmode which = ios_base::in | ios_base::out) Seek with position
static streamsize	fdread (int fd, char_type* s, streamsize num) file descriptor read
static streamsize	fdwrite (int fd, const char_type* s, streamsize num) file descriptor write
static pos_type	fdseek (int fd, off_type off, ios_base::seekdir way) file descriptor seek

basic_fdbuf(int fdin, int fdout)

Constructor. Create a streambuf from open file descriptors. The first descriptor will be used for input whereas the second is used for output. If one of the is not used, set it to -1.

int fFdIn

Inpput file descriptor

int fFdOut

Inpput file descriptor

static const streamsize fBufferSize

size of input data buffer

char_type fBuffer[fBufferSize]

Input data buffer

virtual int_type underflow()

Read one character

virtual int_type overflow(int_type c = traits::eof())

Write one character

virtual streamsize xsputn(const char_type* s, streamsize num)

Write multiple characters

virtual pos_type seekoff(off_type off, ios_base::seekdir way, ios_base::openmode which = ios_base::in | ios_base::out)

Seek with offset

virtual pos_type seekpos(pos_type sp, ios_base::openmode which = ios_base::in | ios_base::out)

Seek with position

static streamsize fdread(int fd, char_type* s, streamsize num)

file descriptor read

static streamsize fdwrite(int fd, const char_type* s, streamsize num)

file descriptor write

static pos_type fdseek(int fd, off_type off, ios_base::seekdir way)

file descriptor seek

alphabetic index hierarchy of classes

Please send questions and comments to zweizig_j@ligo.caltech.edu

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