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Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler...
Reworked cancelation handling, if the cancel handler isn't specified the OperationCanceledException will be handled by the error handler Any unhandled OperationCanceledException will cause the promise cancelation
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r134:04d4c92d0f28 v2
r187:dd4a3590f9c6 ref20160224
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OperationContext.cs
65 lines | 2.3 KiB | text/x-csharp | CSharpLexer
/ Implab / Diagnostics / OperationContext.cs
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namespace Implab.Diagnostics {
struct OperationContext {
public readonly static OperationContext EMPTY = new OperationContext(LogicalOperation.EMPTY, false);
LogicalOperation m_initial;
LogicalOperation m_current;
bool m_ownership;
public OperationContext(LogicalOperation operation, bool ownership) {
Safe.ArgumentNotNull(operation, "operation");
m_initial = operation;
m_current = operation;
m_ownership = ownership;
}
public LogicalOperation CurrentOperation {
get { return m_current; }
}
public void BeginLogicalOperation(string name) {
m_current = new LogicalOperation(name, m_current);
}
public LogicalOperation DetachLogicalOperation() {
var detached = m_current;
if (m_current != LogicalOperation.EMPTY) {
if (m_current != m_initial)
m_current = m_current.Parent;
else if (m_ownership)
m_current = LogicalOperation.EMPTY;
else {
TraceLog.TraceWarning("DetachLogicalOperation can't be applied in the current context");
detached = LogicalOperation.EMPTY;
}
} else {
TraceLog.TraceWarning("DetachLogicalOperation can't be applied in the current context");
}
return detached;
}
public LogicalOperation EndLogicalOperation() {
var current = m_current;
if (m_current != LogicalOperation.EMPTY && (m_current != m_initial || m_ownership)) {
m_current = m_current.Parent;
if (current == m_initial) {
// we have complete the owned operation
m_initial = m_current;
m_ownership = false;
}
} else {
TraceLog.TraceWarning("EndLogicalOperation can't be applied in the current context");
}
return current;
}
public void Leave() {
if ((m_ownership && m_current != LogicalOperation.EMPTY) || (!m_ownership && m_current != m_initial) )
TraceLog.TraceWarning("Trying to leave unfinished logical operation {0}", m_current.Name);
}
}
}