llapi_layout_comp_extent_get(3)

NAME

llapi_layout_comp_extent_get, llapi_layout_comp_extent_set - get or set the extent of a layout component.

SYNOPSIS

#include <lustre/lustreapi.h>

int llapi_layout_comp_extent_get(const struct llapi_layout *layout,
                                 uint64_t *start, uint64_t *end);

int llapi_layout_comp_extent_set(const struct llapi_layout *layout,
                                 uint64_t start, uint64_t end);

DESCRIPTION

The extent [start, end) defines the range of a layout component.

llapi_layout_comp_extent_get(3) gets the extent of the current component of layout and stores it into start and end.

llapi_layout_comp_extent_set(3) sets the extent [start, end) to the current component of layout.

RETURN VALUES

llapi_layout_comp_extent_get() and llapi_layout_comp_extent_set() return 0 on success, or -1 if an error occurred (in which case, errno is set appropriately).

ERRORS

EINVAL

An invalid argument was specified.

AVAILABILITY

llapi_layout_comp_extent_get() and llapi_layout_comp_extent_set() are part of the lustre(7) user application interface library since release 2.10.0

SEE ALSO

llapi_layout_alloc(3), llapi_layout_file_open(3), llapi_layout(7), lustreapi(7)