go-ceph/rados/ioctx_set_alloc_hint.go

37 lines
1009 B
Go
Raw Normal View History

package rados
// #cgo LDFLAGS: -lrados
// #include <rados/librados.h>
// #include <stdlib.h>
//
import "C"
import (
"unsafe"
)
// 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:
//
// int rados_set_alloc_hint2(rados_ioctx_t io,
// const char *o,
// uint64_t expected_object_size,
// uint64_t expected_write_size,
// uint32_t flags);
func (ioctx *IOContext) SetAllocationHint(oid string, expectedObjectSize uint64, expectedWriteSize uint64, flags AllocHintFlags) error {
coid := C.CString(oid)
defer C.free(unsafe.Pointer(coid))
return getError(C.rados_set_alloc_hint2(
ioctx.ioctx,
coid,
(C.uint64_t)(expectedObjectSize),
(C.uint64_t)(expectedWriteSize),
(C.uint32_t)(flags),
))
}