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30 lines
704 B
Go
30 lines
704 B
Go
package daemon
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import (
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"fmt"
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"os"
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"syscall"
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"github.com/Sirupsen/logrus"
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psignal "github.com/docker/docker/pkg/signal"
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"github.com/docker/docker/pkg/system"
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)
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func setupDumpStackTrap() {
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// Windows does not support signals like *nix systems. So instead of
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// trapping on SIGUSR1 to dump stacks, we wait on a Win32 event to be
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// signalled.
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go func() {
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sa := syscall.SecurityAttributes{
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Length: 0,
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}
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ev := "Global\\docker-daemon-" + fmt.Sprint(os.Getpid())
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if h, _ := system.CreateEvent(&sa, false, false, ev); h != 0 {
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logrus.Debugf("Stackdump - waiting signal at %s", ev)
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for {
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syscall.WaitForSingleObject(h, syscall.INFINITE)
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psignal.DumpStacks()
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}
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}
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}()
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}
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