status/go17.go

// +build go1.7

/*
 *
 * Copyright 2018 gRPC authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 */

package status

import (
	"context"

	netctx "golang.org/x/net/context"
	"google.golang.org/grpc/codes"
)

// FromContextError converts a context error into a Status.  It returns a
// Status with codes.OK if err is nil, or a Status with codes.Unknown if err is
// non-nil and not a context error.
func FromContextError(err error) *Status {
	switch err {
	case nil:
		return New(codes.OK, "")
	case context.DeadlineExceeded, netctx.DeadlineExceeded:
		return New(codes.DeadlineExceeded, err.Error())
	case context.Canceled, netctx.Canceled:
		return New(codes.Canceled, err.Error())
	default:
		return New(codes.Unknown, err.Error())
	}
}