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crate/contexthelper/nocancel.go

18 lines
380 B
Go

package contexthelper
import "context"
// WithNoCancel 阻断上级 ctx 的中断信号
// 想要使用上级 ctx 中的值但不想受上级 ctx 控制退出时可以使用
func WithNoCancel(ctx context.Context) context.Context {
return &noCancelCtx{Context: ctx}
}
type noCancelCtx struct {
context.Context
}
func (ctx *noCancelCtx) Done() <-chan struct{} {
return nil
}