public void TestYield()
{
ThreadCpuGovernor governor = new ThreadCpuGovernor(50);
Assert.DoesNotThrow(() => governor.Yield());
Assert.DoesNotThrow(() => governor.Yield());
Assert.DoesNotThrow(() => governor.Yield());
}
/// <summary>
/// Writes the tokens to the stream.
/// </summary>
/// <param name="context">The context.</param>
protected override void OnGenerate(WriterContext context)
{
ThreadCpuGovernor threadGovernor = new ThreadCpuGovernor(50);
foreach (Token token in Tokens)
{
// Allocate new unique IDs for recurring images
var docProperties = token.SourceNode as DocProperties;
if (token.IsOpen && docProperties != null)
{
docProperties.Id = context.AllocateImageId(docProperties.Id);
}
// Write token
context.Writer.WriteToken(token);
threadGovernor.Yield();
}
}
/// <summary>
/// Main processing method to convert an XML tree to a tree of instructions.
/// Starting at the root we do the following:
/// - read the token stream
/// - sometimes automatically ignore tokens
/// - sometimes implicitly pop off an instruction if we hit an 'implicit end' marker
/// - buffer tokens
/// - process the tokens
/// </summary>
/// <param name="root"></param>
/// <returns></returns>
public TemplateData BuildInstructionTree(OpenXmlElement root)
{
if (_templateData != null)
{
throw new InvalidOperationException("BuildInstructionTree can only be called once per instance of OpenXmlReader.");
}
_templateData = new TemplateData();
ReaderContext.OpenXmlReader = this;
// Initialize instruction stack
_templateData.RootInstruction = CreateRootInstruction();
_instructionStack.Push(_templateData.RootInstruction);
// Initialize token reader
IEnumerable <Token> tokens = ReadTokens(root);
ThreadCpuGovernor threadGovernor = new ThreadCpuGovernor(50);
// Main reader loop
foreach (Token token in tokens)
{
ProcessTokenRaw(token);
if (_discardUntil != null)
{
if (token == _discardUntil)
{
_discardUntil = null;
}
continue;
}
while (token == CurrentInstruction.ImplicitlyEndBefore)
{
ProcessEndImplicit();
}
_tokenBuffer.Add(token);
ProcessToken(token);
while (token == CurrentInstruction.ImplicitlyEndAfter)
{
ProcessEndImplicit();
}
threadGovernor.Yield();
}
// Handle final block
FlushTokenBufferToDataInstruction();
// Verify and return root instruction.
_instructionStack.Pop();
if (_instructionStack.Count > 0)
{
throw new Exception("Expected empty instruction stack.");
}
return(_templateData);
}
