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explain_writev_or_die(3) Library Functions Manual explain_writev_or_die(3) NAME explain_writev_or_die - write data from multiple buffers and report er- rors SYNOPSIS #include <libexplain/writev.h> ssize_t explain_writev_or_die(int fildes, const struct iovec *data, int data_size); ssize_t explain_writev_on_error(int fildes, const struct iovec *data, int data_size); DESCRIPTION The explain_writev_or_die function is used to call the writev(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_writev(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_writev_on_error function is used to call the writev(2) sys- tem call. On failure an explanation will be printed to stderr, obtained from the explain_writev(3) function, but still returns to the caller. fildes The fildes, exactly as to be passed to the writev(2) system call. data The data, exactly as to be passed to the writev(2) system call. data_size The data_size, exactly as to be passed to the writev(2) system call. RETURN VALUE The explain_writev_or_die function only returns on success, see writev(2) for more information. On failure, prints an explanation and exits, it does not return. The explain_writev_on_error function always returns the value return by the wrapped writev(2) system call. EXAMPLE The explain_writev_or_die function is intended to be used in a fashion similar to the following example: ssize_t result = explain_writev_or_die(fildes, data, data_size); SEE ALSO writev(2) write data from multiple buffers explain_writev(3) explain writev(2) errors exit(2) terminate the calling process COPYRIGHT libexplain version 1.3 Copyright (C) 2009 Peter Miller explain_writev_or_die(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT
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