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setupapi: Add SP_DRVINFO_DATA.IsNewer() method to simplify comparison

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Signed-off-by: Simon Rozman <simon@rozman.si>
This commit is contained in:
Simon Rozman 2019-02-06 20:17:47 +01:00
parent 3c29434a79
commit 069016bbc4
2 changed files with 48 additions and 0 deletions
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22
setupapi/setupapi_windows_test.go
View file

@ -177,6 +177,28 @@ func TestDevInfo_BuildDriverInfoList(t *testing.T) {
continue
}
if !driverData.IsNewer(windows.Filetime{}, 0) {
t.Error("Driver should have non-zero date and version")
}
if !driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime}, 0) {
t.Error("Driver should have non-zero date and version")
}
if driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime + 1}, 0) {
t.Error("Driver should report newer version on high-date-time")
}
if !driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime, LowDateTime: driverData.DriverDate.LowDateTime}, 0) {
t.Error("Driver should have non-zero version")
}
if driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime, LowDateTime: driverData.DriverDate.LowDateTime + 1}, 0) {
t.Error("Driver should report newer version on low-date-time")
}
if driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime, LowDateTime: driverData.DriverDate.LowDateTime}, driverData.DriverVersion) {
t.Error("Driver should not be newer than itself")
}
if driverData.IsNewer(windows.Filetime{HighDateTime: driverData.DriverDate.HighDateTime, LowDateTime: driverData.DriverDate.LowDateTime}, driverData.DriverVersion+1) {
t.Error("Driver should report newer version on version")
}
err = devInfoList.SetSelectedDriver(deviceData, driverData)
if err != nil {
t.Errorf("Error calling SetupDiSetSelectedDriver: %s", err.Error())

26
setupapi/types_windows.go
View file

@ -321,6 +321,32 @@ func (data SP_DRVINFO_DATA) ToGo() *DrvInfoData {
}
}
// IsNewer method returns true if SP_DRVINFO_DATA date and version is newer than supplied parameters.
func (data SP_DRVINFO_DATA) IsNewer(DriverDate windows.Filetime, DriverVersion uint64) bool {
if data.DriverDate.HighDateTime > DriverDate.HighDateTime {
return true
}
if data.DriverDate.HighDateTime < DriverDate.HighDateTime {
return false
}
if data.DriverDate.LowDateTime > DriverDate.LowDateTime {
return true
}
if data.DriverDate.LowDateTime < DriverDate.LowDateTime {
return false
}
if data.DriverVersion > DriverVersion {
return true
}
if data.DriverVersion < DriverVersion {
return false
}
return false
}
// DrvInfoData is driver information structure (member of a driver info list that may be associated with a particular device instance, or (globally) with a device information set)
type DrvInfoData struct {
DriverType uint32