NAME¶
explain_setlinebuf_or_die - stream buffering operations and report errors
SYNOPSIS¶
#include <libexplain/setlinebuf.h>
void explain_setlinebuf_or_die(FILE *fp);
void explain_setlinebuf_on_error(FILE *fp);
DESCRIPTION¶
The
explain_setlinebuf_or_die function is used to call the
setlinebuf(3) system call. On failure an explanation will be printed to
stderr, obtained from the
explain_setlinebuf(3) function, and
then the process terminates by calling exit(EXIT_FAILURE).
The
explain_setlinebuf_on_error function is used to call the
setlinebuf(3) system call. On failure an explanation will be printed to
stderr, obtained from the
explain_setlinebuf(3) function, but
still returns to the caller.
- fp
- The fp, exactly as to be passed to the setlinebuf(3)
system call.
RETURN VALUE¶
The
explain_setlinebuf_or_die function only returns on success, see
setlinebuf(3) for more information. On failure, prints an explanation
and exits, it does not return.
The
explain_setlinebuf_on_error function always returns the value return
by the wrapped
setlinebuf(3) system call.
EXAMPLE¶
The
explain_setlinebuf_or_die function is intended to be used in a
fashion similar to the following example:
explain_setlinebuf_or_die(fp);
SEE ALSO¶
- setlinebuf(3)
- stream buffering operations
- explain_setlinebuf(3)
- explain setlinebuf(3) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 0.52
Copyright (C) 2010 Peter Miller
