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69 lines
2.2 KiB
69 lines
2.2 KiB
/* |
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* |
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* Copyright 2014 gRPC authors. |
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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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* |
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*/ |
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// Package naming defines the naming API and related data structures for gRPC. |
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// The interface is EXPERIMENTAL and may be suject to change. |
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// |
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// Deprecated: please use package resolver. |
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package naming |
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// Operation defines the corresponding operations for a name resolution change. |
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// |
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// Deprecated: please use package resolver. |
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type Operation uint8 |
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const ( |
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// Add indicates a new address is added. |
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Add Operation = iota |
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// Delete indicates an existing address is deleted. |
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Delete |
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) |
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// Update defines a name resolution update. Notice that it is not valid having both |
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// empty string Addr and nil Metadata in an Update. |
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// |
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// Deprecated: please use package resolver. |
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type Update struct { |
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// Op indicates the operation of the update. |
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Op Operation |
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// Addr is the updated address. It is empty string if there is no address update. |
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Addr string |
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// Metadata is the updated metadata. It is nil if there is no metadata update. |
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// Metadata is not required for a custom naming implementation. |
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Metadata interface{} |
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} |
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// Resolver creates a Watcher for a target to track its resolution changes. |
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// |
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// Deprecated: please use package resolver. |
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type Resolver interface { |
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// Resolve creates a Watcher for target. |
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Resolve(target string) (Watcher, error) |
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} |
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// Watcher watches for the updates on the specified target. |
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// |
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// Deprecated: please use package resolver. |
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type Watcher interface { |
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// Next blocks until an update or error happens. It may return one or more |
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// updates. The first call should get the full set of the results. It should |
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// return an error if and only if Watcher cannot recover. |
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Next() ([]*Update, error) |
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// Close closes the Watcher. |
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Close() |
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}
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