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NAME

       explain_writev_or_die  -  write  data  from multiple buffers and report
       errors

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)
       system 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 0.19
       Copyright (C) 2009 Peter Miller

                                                      explain_writev_or_die(3)