Includes solved 02-worker-pool and 09-safe-counter (mutex, atomic, sharded). Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01GbnJj9ZqEx9nUvzkjdwfMq
23 lines
419 B
Go
23 lines
419 B
Go
// PREDICT: what happens? Can recover() save you? Run it a few times.
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// Then run with: go run -race .
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package main
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import (
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"fmt"
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"time"
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)
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func main() {
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defer func() {
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if r := recover(); r != nil {
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fmt.Println("recovered:", r) // will this ever print?
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}
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}()
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m := make(map[int]int)
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for i := 0; i < 100; i++ {
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go func(i int) { m[i] = i }(i)
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}
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time.Sleep(200 * time.Millisecond)
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fmt.Println(len(m))
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}
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