go-ceph/rados/write_op_set_alloc_hint.go

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//go:build ceph_preview
// +build ceph_preview
package rados
// #cgo LDFLAGS: -lrados
// #include <rados/librados.h>
// #include <stdlib.h>
//
import "C"
// SetAllocationHint sets allocation hint for an object. This is an advisory
// operation, it will always succeed (as if it was submitted with a
// LIBRADOS_OP_FLAG_FAILOK flag set) and is not guaranteed to do anything on
// the backend.
//
// Implements:
// void rados_write_op_set_alloc_hint2(rados_write_op_t write_op,
// uint64_t expected_object_size,
// uint64_t expected_write_size,
// uint32_t flags);
func (w *WriteOp) SetAllocationHint(expectedObjectSize uint64, expectedWriteSize uint64, flags AllocHintFlags) {
C.rados_write_op_set_alloc_hint2(
w.op,
C.uint64_t(expectedObjectSize),
C.uint64_t(expectedWriteSize),
C.uint32_t(flags))
}