Append (cat) to beginning of file ? Post: 44673

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hugetlbfs_unlinked_fd_for_size

HUGETLBFS_UNLINKED_FD(3)				     Library Functions Manual					  HUGETLBFS_UNLINKED_FD(3)

NAME

       hugetlbfs_unlinked_fd, hugetlbfs_unlinked_fd_for_size - Obtain a file descriptor for a new unlinked file in hugetlbfs

SYNOPSIS

       #include <hugetlbfs.h>

       int hugetlbfs_unlinked_fd(void);
       int hugetlbfs_unlinked_fd_for_size(long page_size);

DESCRIPTION

       These functions return an open file descriptor for a unique, newly-created file in a hugetlbfs filesystem.  To avoid leaking hugepages, the
       file is unlinked automatically before the function returns.

       For hugetlbfs_unlinked_fd, the default huge page size is used (see gethugepagesize(3)).	For hugetlbfs_unlinked_fd_for_size, a  valid  huge
       page size must be specified (see gethugepagesizes(3)).

RETURN VALUE

       On success, a valid open file descriptor is returned.  On failure, -1 is returned and errno may be set appropriately.

SEE ALSO

       gethugepagesize(3), gethugepagesizes(3), mkstemp(3), libhugetlbfs(7)

AUTHORS

       libhugetlbfs was written by various people on the libhugetlbfs-devel mailing list.

								   March 7, 2012					  HUGETLBFS_UNLINKED_FD(3)

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