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30 lines
538 B
30 lines
538 B
package sdkrand
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import (
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"math/rand"
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"sync"
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"time"
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)
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// lockedSource is a thread-safe implementation of rand.Source
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type lockedSource struct {
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lk sync.Mutex
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src rand.Source
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}
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func (r *lockedSource) Int63() (n int64) {
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r.lk.Lock()
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n = r.src.Int63()
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r.lk.Unlock()
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return
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}
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func (r *lockedSource) Seed(seed int64) {
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r.lk.Lock()
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r.src.Seed(seed)
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r.lk.Unlock()
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}
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// SeededRand is a new RNG using a thread safe implementation of rand.Source
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var SeededRand = rand.New(&lockedSource{src: rand.NewSource(time.Now().UnixNano())})
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