mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Tamir Duberstein
41 lines
999 B
Go
41 lines
999 B
Go
// Copyright 2020 The gVisor 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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package stack
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import (
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"math/rand"
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"gvisor.dev/gvisor/pkg/sync"
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)
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// lockedRandomSource provides a threadsafe rand.Source.
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type lockedRandomSource struct {
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mu sync.Mutex
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src rand.Source
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}
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func (r *lockedRandomSource) Int63() (n int64) {
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r.mu.Lock()
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n = r.src.Int63()
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r.mu.Unlock()
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return n
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}
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func (r *lockedRandomSource) Seed(seed int64) {
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r.mu.Lock()
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r.src.Seed(seed)
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r.mu.Unlock()
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}
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