go-ceph/rados/ioctx_pool_alignment.go
Anoop C S 6e051a520d rados: Make IOContext.Alignment stable
Signed-off-by: Anoop C S <anoopcs@cryptolab.net>
2022-12-06 14:20:29 +00:00

25 lines
741 B
Go

package rados
// #cgo LDFLAGS: -lrados
// #include <rados/librados.h>
// #include <stdlib.h>
//
import "C"
// Alignment returns the required stripe size in bytes for pools supporting/requiring it, or an error if unsuccessful.
// For an EC pool, a buffer size multiple of its stripe size is required to call Append. To know if the pool requires
// alignment or not, use RequiresAlignment.
//
// Implements:
// int rados_ioctx_pool_required_alignment2(rados_ioctx_t io, uint64_t *alignment)
func (ioctx *IOContext) Alignment() (uint64, error) {
var alignSizeBytes C.uint64_t
ret := C.rados_ioctx_pool_required_alignment2(
ioctx.ioctx,
&alignSizeBytes)
if ret != 0 {
return 0, getError(ret)
}
return uint64(alignSizeBytes), nil
}