27 lines
537 B
Go
27 lines
537 B
Go
package metrics
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import "context"
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const CtxScopeKey = "ipfs.metrics.scope"
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func CtxGetScope(ctx context.Context) string {
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s := ctx.Value(CtxScopeKey)
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if s == nil {
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return "<no-scope>"
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}
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str, ok := s.(string)
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if !ok {
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return "<no-scope>"
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}
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return str
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}
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func CtxScope(ctx context.Context, scope string) context.Context {
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return context.WithValue(ctx, CtxScopeKey, scope)
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}
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func CtxSubScope(ctx context.Context, subscope string) context.Context {
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curscope := CtxGetScope(ctx)
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return CtxScope(ctx, curscope+"."+subscope)
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}
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