38 lines
747 B
Go
38 lines
747 B
Go
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//go:build !noerrtrace
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// +build !noerrtrace
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package errors
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import (
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"sync/atomic"
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)
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var traceFlag int64
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const (
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traceEnabled = 0 // enabled by default
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traceDisabled = 1
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)
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// setTrace sets tracing flag that controls capturing caller frames.
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func setTrace(trace bool) {
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if trace {
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atomic.StoreInt64(&traceFlag, traceEnabled)
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} else {
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atomic.StoreInt64(&traceFlag, traceDisabled)
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}
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}
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// enableTrace enables capturing caller frames.
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//
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// Intentionally left unexported.
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func enableTrace() { setTrace(true) }
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// DisableTrace disables capturing caller frames.
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func DisableTrace() { setTrace(false) }
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// Trace reports whether caller stack capture is enabled.
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func Trace() bool {
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return atomic.LoadInt64(&traceFlag) == traceEnabled
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}
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