Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
explain_munmap_or_die(3)   Library Functions Manual   explain_munmap_or_die(3)

NAME
       explain_munmap_or_die  -	 unmap a file or device	from memory and	report
       errors

SYNOPSIS
       #include	<libexplain/munmap.h>
       void explain_munmap_or_die(void *data, size_t data_size);
       int explain_munmap_on_error(void	*data, size_t data_size);

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

       The explain_munmap_on_error function is used to call the	munmap(2) sys-
       tem call. On failure an explanation will	be printed to stderr, obtained
       from the	explain_munmap(3) function, but	still returns to the caller.

       data    The data, exactly as to be passed to the	munmap(2) system call.

       data_size
	       The  data_size, exactly as to be	passed to the munmap(2)	system
	       call.

RETURN VALUE
       The explain_munmap_or_die function only returns on  success,  see  mun-
       map(2)  for more	information. On	failure, prints	an explanation and ex-
       its, it does not	return.

       The explain_munmap_on_error function always returns the value return by
       the wrapped munmap(2) system call.

EXAMPLE
       The  explain_munmap_or_die function is intended to be used in a fashion
       similar to the following	example:
	      explain_munmap_or_die(data, data_size);

SEE ALSO
       munmap(2)
	       unmap a file or device from memory

       explain_munmap(3)
	       explain munmap(2) errors

       exit(2) terminate the calling process

COPYRIGHT
       libexplain version 1.3
       Copyright (C) 2010 Peter	Miller

						      explain_munmap_or_die(3)

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

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=explain_munmap_or_die&sektion=3&manpath=FreeBSD+12.2-RELEASE+and+Ports>

home | help