48 lines
1.2 KiB
48 lines
1.2 KiB
// Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
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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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// http://www.apache.org/licenses/LICENSE-2.0
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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 master
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import "sync"
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// InMemStore is an in memory implementation of Store interface.
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//
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// It does not tolerate the fault that causes the program to crash.
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type InMemStore struct {
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mu sync.Mutex
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buf []byte
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}
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// Save saves the state into the in-memory store.
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func (m *InMemStore) Save(state []byte) error {
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m.mu.Lock()
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defer m.mu.Unlock()
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m.buf = state
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return nil
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}
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// Load loads the state from the in-memory store.
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func (m *InMemStore) Load() ([]byte, error) {
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m.mu.Lock()
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defer m.mu.Unlock()
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return m.buf, nil
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}
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// Shutdown shuts down the in mem store.
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func (m *InMemStore) Shutdown() error {
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return nil
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}
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