/// <summary>
/// Initialize the frontend.
/// </summary>
/// <remarks>
/// When the C++ method invocation reports a hardware error the call is repeated
/// up to three times with a <see cref="Thread.Sleep(int)"/>(500) between the calls.
/// If the error holds a <see cref="DVBException"/> is thrown.
/// <see cref="StopFilters"/>
/// </remarks>
/// <exception cref="DVBException">
/// Thrown when the C++ method invocation reports some <see cref="DVBError"/>.
/// </exception>
public void Initialize()
{
// Time to stop all filters
StopFilters();
// Execute
DVBError eCode = CDVBFrontend_Init(m_Class.ClassPointer);
// Retry
for (int nRetry = 3; (DVBError.Hardware == eCode) && (nRetry-- > 0);)
{
// Delay
Thread.Sleep(500);
// Try again
eCode = CDVBFrontend_Init(m_Class.ClassPointer);
}
// Validate
if (DVBError.None != eCode)
{
throw new DVBException("Can not initialize Frontend", eCode);
}
// Reset
m_lastMessage = null;
}
/// <summary>
/// If the code is not <see cref="DVBError">None</see> a new
/// <see cref="DVBException"/> is created.
/// </summary>
/// <param name="eCode">Error code from some API call.</param>
/// <param name="sMessage">Message to report.</param>
/// <exception cref="DVBException">If the error code is set.</exception>
public static void ThrowOnError(DVBError eCode, string sMessage)
{
// Check and throw
if (DVBError.None != eCode)
{
throw new DVBException(sMessage, eCode);
}
}
public void Initialize()
{
// Execute
DVBError errorCode = _Init(m_Class.ClassPointer);
// Retry
for (int retryCount = 3; (DVBError.Hardware == errorCode) && (retryCount-- > 0);)
{
// Delay
Thread.Sleep(500);
// Try again
errorCode = _Init(m_Class.ClassPointer);
}
// Validate
if (DVBError.None != errorCode)
{
throw new DVBException("Can not initialize frontend", errorCode);
}
}
/// <summary>
/// If the code is not <see cref="DVBError">None</see> a new
/// <see cref="DVBException"/> is created.
/// </summary>
/// <param name="eCode">Error code from some API call.</param>
/// <param name="sMessage">Message to report.</param>
/// <exception cref="DVBException">If the error code is set.</exception>
public static void ThrowOnError(DVBError eCode, string sMessage)
{
// Check and throw
if ( DVBError.None != eCode ) throw new DVBException(sMessage, eCode);
}
/// <summary>
/// Error from API call.
/// </summary>
/// <param name="sText">Some error string.</param>
/// <param name="eCode">Return value from the C++ method invocation.</param>
public DVBException(string sText, DVBError eCode) : base(sText + " [Error: " + eCode.ToString() + "]")
{
// Remember
m_Code = eCode;
}
private void CheckChannel( DVBError errorCode )
{
// Validate
DVBException.ThrowOnError( errorCode, "Unable to set channel" );
}
/// <summary>
/// Error from API call.
/// </summary>
/// <param name="sText">Some error string.</param>
/// <param name="eCode">Return value from the C++ method invocation.</param>
public DVBException(string sText, DVBError eCode) : base(sText + " [Error: " + eCode.ToString() + "]")
{
// Remember
m_Code = eCode;
}
private void CheckChannel(DVBError errorCode)
{
// Validate
DVBException.ThrowOnError(errorCode, "Unable to set channel");
}
