NAME

xt_ff_stdin() - Create a fast file stream attached to descriptor 0

LIBRARY

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

SYNOPSIS

xt_ff_t *xt_ff_stdin(void)

ARGUMENTS

None

DESCRIPTION

xt_ff_stdin(3) is a simple wrapper function for connecting file descriptor 0 to an xt_ff_t object using xt_ff_dopen(3). This is useful for high-performance filter programs, where using the traditional FILE *stdin would cause a bottleneck.

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

Pointer to an xt_ff_t object if successful, NULL otherwise

EXAMPLES

xt_ff_t *stream;
// "-" as a filename argument traditionally indicates stdin
if ( strcmp(argv[arg], "-") == 0 )


    stream = xt_ff_stdin(3);
else


    stream = xt_ff_open(argv[arg], O_RDONLY);