49 lines
1.0 KiB
Go
49 lines
1.0 KiB
Go
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// +build windows
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package procstat
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import (
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"unsafe"
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"golang.org/x/sys/windows"
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"golang.org/x/sys/windows/svc/mgr"
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)
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func getService(name string) (*mgr.Service, error) {
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m, err := mgr.Connect()
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if err != nil {
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return nil, err
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}
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defer m.Disconnect()
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srv, err := m.OpenService(name)
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if err != nil {
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return nil, err
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}
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return srv, nil
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}
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func queryPidWithWinServiceName(winServiceName string) (uint32, error) {
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srv, err := getService(winServiceName)
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if err != nil {
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return 0, err
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}
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var p *windows.SERVICE_STATUS_PROCESS
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var bytesNeeded uint32
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var buf []byte
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if err := windows.QueryServiceStatusEx(srv.Handle, windows.SC_STATUS_PROCESS_INFO, nil, 0, &bytesNeeded); err != windows.ERROR_INSUFFICIENT_BUFFER {
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return 0, err
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}
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buf = make([]byte, bytesNeeded)
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p = (*windows.SERVICE_STATUS_PROCESS)(unsafe.Pointer(&buf[0]))
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if err := windows.QueryServiceStatusEx(srv.Handle, windows.SC_STATUS_PROCESS_INFO, &buf[0], uint32(len(buf)), &bytesNeeded); err != nil {
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return 0, err
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}
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return p.ProcessId, nil
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}
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