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Make check() concurrent to improve speed #3

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Make check() concurrent to improve speed #3

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14 changes: 13 additions & 1 deletion certchk.go
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Original file line number Diff line number Diff line change
Expand Up @@ -85,8 +85,20 @@ func main() {
// actually check
fmt.Printf("%*s | Certificate status\n%s-+-%s\n", width, "Server",
strings.Repeat("-", width), strings.Repeat("-", 80-width-2))

// channel for synchronizing 'done state', buffer the amount of names
done := make(chan bool, len(names))

for _, name := range names {
check(name, width)
go func(name string) {
check(name, width)
done <- true
}(name)
}

// Drain the channel and wait for all goroutines to complete
for i := 0; i < len(names); i++ {
<-done // wait for one task to complete
}
}

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