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Merge pull request #147 from dnephin/signal-handler
Add a signal handler to forward SIGINT to 'go test'
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,48 @@ | ||
package main | ||
|
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import ( | ||
"fmt" | ||
"io/ioutil" | ||
"os" | ||
"os/signal" | ||
"strconv" | ||
"syscall" | ||
"time" | ||
) | ||
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func main() { | ||
if len(os.Args) < 2 { | ||
log("missing required filename argument") | ||
os.Exit(1) | ||
} | ||
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pid := []byte(strconv.Itoa(os.Getpid())) | ||
if err := ioutil.WriteFile(os.Args[1], pid, 0644); err != nil { | ||
log("failed to write file:", err.Error()) | ||
os.Exit(1) | ||
} | ||
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c := make(chan os.Signal, 1) | ||
signal.Notify(c) | ||
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var s os.Signal | ||
select { | ||
case s = <-c: | ||
case <-time.After(time.Minute): | ||
log("timeout waiting for signal") | ||
os.Exit(1) | ||
} | ||
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log("Received signal:", s) | ||
switch n := s.(type) { | ||
case syscall.Signal: | ||
os.Exit(100 + int(n)) | ||
default: | ||
log("failed to parse signal number") | ||
os.Exit(3) | ||
} | ||
} | ||
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func log(v ...interface{}) { | ||
fmt.Fprintln(os.Stderr, v...) | ||
} |
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