44 lines
1.6 KiB
Go
44 lines
1.6 KiB
Go
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// Copyright 2016 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package clientv3
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import (
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"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
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pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
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storagepb "github.com/coreos/etcd/storage/storagepb"
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)
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type Watcher interface {
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// Watch watches on a single key. The watched events will be returned
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// through the returned channel.
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// If the watch is slow or the required rev is compacted, the watch request
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// might be canceled from the server-side and the chan will be closed.
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Watch(cxt context.Context, key string, rev int64) <-chan WatchResponse
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// Watch watches on a prefix. The watched events will be returned
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// through the returned channel.
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// If the watch is slow or the required rev is compacted, the watch request
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// might be canceled from the server-side and the chan will be closed.
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WatchPrefix(cxt context.Context, prefix string, rev int64) <-chan WatchResponse
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// Close closes the watcher and cancels all watch requests.
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Close() error
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}
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type WatchResponse struct {
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Header pb.ResponseHeader
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Events []*storagepb.Event
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}
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