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| explain_setvbuf_or_die(3) | FreeBSD Library Functions Manual | explain_setvbuf_or_die(3) |
NAME
explain_setvbuf_or_die - stream buffering operations and report errorsSYNOPSIS
#include <libexplain/setvbuf.h>void explain_setvbuf_or_die(FILE *fp, char *data, int mode, size_t
size);
int explain_setvbuf_on_error(FILE *fp, char *data, int mode, size_t size);
DESCRIPTION
The explain_setvbuf_or_die function is used to call the setvbuf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_setvbuf(3) function, and then the process terminates by calling exit(EXIT_FAILURE).The explain_setvbuf_on_error function is used to call the setvbuf(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_setvbuf(3) function, but still returns to the caller.
- fp
- The fp, exactly as to be passed to the setvbuf(3) system call.
- data
- The data, exactly as to be passed to the setvbuf(3) system call.
- mode
- The mode, exactly as to be passed to the setvbuf(3) system call.
- size
- The size, exactly as to be passed to the setvbuf(3) system call.
RETURN VALUE
The explain_setvbuf_or_die function only returns on success, see setvbuf(3) for more information. On failure, prints an explanation and exits, it does not return.The explain_setvbuf_on_error function always returns the value return by the wrapped setvbuf(3) system call.
EXAMPLE
The explain_setvbuf_or_die function is intended to be used in a fashion similar to the following example:explain_setvbuf_or_die(fp, data, mode, size);
SEE ALSO
- setvbuf(3)
- stream buffering operations
- explain_setvbuf(3)
- explain setvbuf(3) errors
- exit(2)
- terminate the calling process
COPYRIGHT
libexplain version 1.3Copyright (C) 2010 Peter Miller
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