|
- // Copyright 2018 Google LLC
- //
- // 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 cloud_test
-
- import (
- "time"
-
- "cloud.google.com/go/bigquery"
- "golang.org/x/net/context"
- )
-
- // To set a timeout for an RPC, use context.WithTimeout.
- func Example_timeout() {
- ctx := context.Background()
- // Do not set a timeout on the context passed to NewClient: dialing happens
- // asynchronously, and the context is used to refresh credentials in the
- // background.
- client, err := bigquery.NewClient(ctx, "project-id")
- if err != nil {
- // TODO: handle error.
- }
- // Time out if it takes more than 10 seconds to create a dataset.
- tctx, cancel := context.WithTimeout(ctx, 10*time.Second)
- defer cancel() // Always call cancel.
-
- if err := client.Dataset("new-dataset").Create(tctx, nil); err != nil {
- // TODO: handle error.
- }
- }
-
- // To arrange for an RPC to be canceled, use context.WithCancel.
- func Example_cancellation() {
- ctx := context.Background()
- // Do not cancel the context passed to NewClient: dialing happens asynchronously,
- // and the context is used to refresh credentials in the background.
- client, err := bigquery.NewClient(ctx, "project-id")
- if err != nil {
- // TODO: handle error.
- }
- cctx, cancel := context.WithCancel(ctx)
- defer cancel() // Always call cancel.
-
- // TODO: Make the cancel function available to whatever might want to cancel the
- // call--perhaps a GUI button.
- if err := client.Dataset("new-dataset").Create(cctx, nil); err != nil {
- // TODO: handle error.
- }
- }
|