Golang rados_ioctx_get_pool_name示例

示例#1

文件： rados_io.go 项目： vuleetu/gorados

func (r *RadosIoCtx) GetPoolName() (string, error) {
	var buf [MAX_NAME_LEN]C.char
	cerr := C.rados_ioctx_get_pool_name(*r.ctx, &buf[0], MAX_NAME_LEN-1)

	if cerr < 0 {
		return "", errors.New("get pool name failed")
	}

	return C.GoString(&buf[0]), nil
}

示例#2

文件： pools.go 项目： objStorage/grados

// Name returns the name of the pool.
func (pool *Pool) Name() string {
	bufLen := 64
	for {
		bufAddr := bufferAddress(bufLen)
		ret := C.rados_ioctx_get_pool_name(pool.context, bufAddr, C.unsigned(bufLen))
		if int(ret) == -int(syscall.ERANGE) {
			bufLen *= 2
			continue
		}
		return C.GoStringN(bufAddr, ret)
	}
}

示例#3

文件： ioctx.go 项目： mittalms/go-ceph

// GetPoolName returns the name of the pool associated with the I/O context.
func (ioctx *IOContext) GetPoolName() (name string, err error) {
	buf := make([]byte, 128)
	for {
		ret := C.rados_ioctx_get_pool_name(ioctx.ioctx,
			(*C.char)(unsafe.Pointer(&buf[0])), C.unsigned(len(buf)))
		if ret == -34 { // FIXME
			buf = make([]byte, len(buf)*2)
			continue
		} else if ret < 0 {
			return "", RadosError(ret)
		}
		name = C.GoStringN((*C.char)(unsafe.Pointer(&buf[0])), ret)
		return name, nil
	}
}