Created
July 22, 2023 03:14
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package main | |
import ( | |
"context" | |
"fmt" | |
) | |
func Example_childCancelsParent() { | |
parentCtx, cancelParentCtx := context.WithCancel(context.Background()) | |
interimValCtx := context.WithValue(parentCtx, "foo", "bar") | |
childCtx, cancelChildCtx := context.WithCancel(interimValCtx) | |
defer cancelChildCtx() | |
defer cancelParentCtx() | |
cancelChildCtx() | |
fmt.Println("parent:", parentCtx.Err()) | |
fmt.Println("interim:", interimValCtx.Err()) | |
fmt.Println("child:", childCtx.Err()) | |
// Output: | |
// parent: <nil> | |
// interim: <nil> | |
// child: context canceled | |
} |
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