NAME¶
explain_tcflow_or_die - terminal flow control and report errors
SYNOPSIS¶
#include <libexplain/tcflow.h>
void explain_tcflow_or_die(int fildes, int action);
int explain_tcflow_on_error(int fildes, int action);
DESCRIPTION¶
The
explain_tcflow_or_die function is used to call the
tcflow(3)
system call. On failure an explanation will be printed to
stderr,
obtained from the
explain_tcflow(3) function, and then the process
terminates by calling exit(EXIT_FAILURE).
The
explain_tcflow_on_error function is used to call the
tcflow(3)
system call. On failure an explanation will be printed to
stderr,
obtained from the
explain_tcflow(3) function, but still returns to the
caller.
- fildes
- The fildes, exactly as to be passed to the tcflow(3)
system call.
- action
- The action, exactly as to be passed to the tcflow(3)
system call.
RETURN VALUE¶
The
explain_tcflow_or_die function only returns on success, see
tcflow(3) for more information. On failure, prints an explanation and
exits, it does not return.
The
explain_tcflow_on_error function always returns the value return by
the wrapped
tcflow(3) system call.
EXAMPLE¶
The
explain_tcflow_or_die function is intended to be used in a fashion
similar to the following example:
explain_tcflow_or_die(fildes, action);
SEE ALSO¶
- tcflow(3)
- terminal flow control
- explain_tcflow(3)
- explain tcflow(3) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 0.52
Copyright (C) 2009 Peter Miller
