23 lines
450 B
Go
23 lines
450 B
Go
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package trace
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import (
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cryptorand "crypto/rand"
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"sync"
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"time"
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"github.com/oklog/ulid/v2"
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)
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var entropyPool = sync.Pool{
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New: func() interface{} {
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return ulid.Monotonic(cryptorand.Reader, 0)
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},
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}
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// GenerateTraceID 生成并发安全的 ULID trace ID
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func GenerateTraceID() string {
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entropy := entropyPool.Get().(*ulid.MonotonicEntropy)
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defer entropyPool.Put(entropy)
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return ulid.MustNew(ulid.Timestamp(time.Now()), entropy).String()
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}
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