46 lines
776 B
Go
46 lines
776 B
Go
package main
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import (
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"fmt"
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"runtime"
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"time"
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)
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const problem = true
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func main() {
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fmt.Println("main program start")
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// this will get run on exit
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defer paperwork()
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// this will not run to completion
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go pcj()
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// this will not get run on exit
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rec := &requiresExternalCleanup{"external object"}
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runtime.SetFinalizer(rec, cleanup)
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if problem {
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fmt.Println("main program returning")
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return
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}
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}
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func paperwork() {
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fmt.Println("i's dotted, t's crossed")
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}
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func pcj() {
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fmt.Println("there's uncle Joe")
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time.Sleep(1e10)
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fmt.Println("movin kinda slow")
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}
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type requiresExternalCleanup struct {
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id string
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}
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func cleanup(rec *requiresExternalCleanup) {
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fmt.Println(rec.id, "cleanup")
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}
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