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| ffstdout(3) | FreeBSD Library Functions Manual | ffstdout(3) |
LIBRARY
#include <xtend/fast-file.h> -lxtend
SYNOPSIS
ffile_t *ffstdout()
ARGUMENTS
None
DESCRIPTION
ffstdout() is a simple wrapper function for connecting file descriptor 1 to an ffile_t object using ffdopen(3). This is useful for high-performance filter programs, where using the traditional FILE *stdout would cause a bottleneck.The ffile_t system is simpler than and several times as fast as 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 ffile_t object if successful, NULL otherwiseEXAMPLES
ffile_t *stream;
// "-" as a filename argument traditionally indicates stdout
if ( strcmp(argv[arg], "-") == 0 )
stream = ffstdout();
else
stream = ffopen(argv[arg], O_WRONLY|O_CREAT|O_TRUNC);
SEE ALSO
ffopen(3), ffdopen(3)
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