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36 lines
1 KiB
Go
36 lines
1 KiB
Go
// Copyright 2017 Pilosa Corp.
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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 storage
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import (
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"sync/atomic"
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)
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// if enableRowCache, then we must not return mmap-ed memory
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// directly, but only a copy.
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var enableRowcache int64 = 1
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// SetRowCacheOn should only be called in NewHolder before
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// all other reads.
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func SetRowCacheOn(on bool) {
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if on {
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atomic.StoreInt64(&enableRowcache, 1)
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} else {
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atomic.StoreInt64(&enableRowcache, 0)
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}
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}
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func EnableRowCache() bool {
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return atomic.LoadInt64(&enableRowcache) == 1
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}
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