NAME

_xt_ff_raw_close() - Close a stream created by _xt_ff_raw_open()

LIBRARY

#include <xtend/fast-file.h>
-lxtend

SYNOPSIS

int     _xt_ff_raw_close(xt_ff_t *stream)

ARGUMENTS

stream  Pointer to an xt_ff_t object opened by xt_ff_open(3)

DESCRIPTION

_xt_ff_raw_close(3) closes a xt_ff_t stream opened by _xt_ff_raw_open(3). It writes out any remaining data in the output buffer, deallocates memory allocated by xt_ff_open(3), and closes the underlying file descriptor opened by open(3).

The xt_ff_t system is simpler than and much faster than traditional FILE on typical systems. It is intended for processing large files character-by-character, where low-level block I/O is not convenient, but FILE I/O causes a bottleneck.

RETURN VALUES

The return status of the underlying close(3) call

EXAMPLES

char    *infilename, *outfilename;
xt_ff_t *instream, *outstream;
int     ch;
if ( (instream = xt_ff_open(infilename, O_RDONLY)) == NULL )
{


    fprintf(stderr, "Cannot open %s for reading: %s.n",


            infilename, strerror(errno));


    exit(EX_NOINPUT);
}
if ( (outstream = xt_ff_open(outfilename, O_WRONLY|O_CREAT|O_TRUNC)) == NULL )
{


    fprintf(stderr, "Cannot open %s for writing: %s.n",


            outfilename, strerror(errno));


    exit(EX_NOINPUT);
}
while ( (ch = xt_ff_getc(stream)) != EOF )


    xt_ff_putc(ch, outstream);
xt_ff_close(instream);
xt_ff_close(outstream);