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explain_poll_or_die(3)	   Library Functions Manual	explain_poll_or_die(3)

NAME
       explain_poll_or_die - wait for some event on file descriptor and	report
       errors

SYNOPSIS
       #include	<libexplain/poll.h>
       int explain_poll_or_die(struct pollfd *fds, int nfds, int timeout);
       int explain_poll_on_error(struct	pollfd *fds, int nfds, int timeout);

DESCRIPTION
       The explain_poll_or_die function	is used	to  call  the  poll(2)	system
       call.  On  failure  an  explanation will	be printed to stderr, obtained
       from the	explain_poll(3)	function, and then the process	terminates  by
       calling exit(EXIT_FAILURE).

       The  explain_poll_on_error  function is used to call the	poll(2)	system
       call. On	failure	an explanation will be	printed	 to  stderr,  obtained
       from the	explain_poll(3)	function, but still returns to the caller.

       fds     The fds,	exactly	as to be passed	to the poll(2) system call.

       nfds    The nfds, exactly as to be passed to the	poll(2)	system call.

       timeout The  timeout,  exactly  as  to  be passed to the	poll(2)	system
	       call.

RETURN VALUE
       The explain_poll_or_die function	only returns on	success,  see  poll(2)
       for  more  information. On failure, prints an explanation and exits, it
       does not	return.

       The explain_poll_on_error function always returns the value  return  by
       the wrapped poll(2) system call.

EXAMPLE
       The  explain_poll_or_die	 function  is intended to be used in a fashion
       similar to the following	example:
	      int result = explain_poll_or_die(fds, nfds, timeout);

SEE ALSO
       poll(2) wait for	some event on a	file descriptor

       explain_poll(3)
	       explain poll(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2010 Peter	Miller

							explain_poll_or_die(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT

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