public unsafe bool ReadActiveSourceItem(UIntPtr sourceHandle, int item, UIntPtr *type, byte *buffer, UInt16 bufferSize) { Lock.AcquireMutex(); object source = SourcesHandleTable[sourceHandle]; if (source != null) { ActiveSource activeSource = source as ActiveSource; if (activeSource != null) { bool success = activeSource.GetActiveEntry(item, type, buffer, bufferSize); Lock.ReleaseMutex(); return(success); } } Lock.ReleaseMutex(); return(false); }
public override bool GetSourceInformation(UIntPtr sourceHandle, ref UIntPtr storageHandle, ref UIntPtr eventType, ref UInt16 count, ref string bufferName) { Lock.AcquireMutex(); EventSource source = SourcesHandleTable[sourceHandle] as EventSource; if (source != null) { bufferName = source.SourceName; ActiveSource activeSource = source as ActiveSource; if (activeSource != null) { storageHandle = 0; eventType = activeSource.EventTypeHandle; count = activeSource.Count; } else { storageHandle = source.Storage.GetHandle(); eventType = 0; count = 0; } Lock.ReleaseMutex(); return(true); } Lock.ReleaseMutex(); return(false); }
// Eventing source support routines public override bool RegisterSource(EventSource source) { // Sanity check against double registration if (source.SourceHandle != 0) { return(false); } UIntPtr sourceHandle = 0; Lock.AcquireMutex(); object obj = SourcesLookupTable[source.SourceName]; if (obj != null) { sourceHandle = (UIntPtr)obj; } if (sourceHandle != 0) { object existingSource = SourcesHandleTable[sourceHandle]; if (existingSource != null) { // Type already registered. Return the existing value Lock.ReleaseMutex(); return(false); } } else { // The handle for this source has not been allocated // Register a new one sourceHandle = AllocateSourceHandleImpl(source.SourceName); while (sourceHandle == 0) { if (!TypesRepository.AddBuffer(BUFFER_EXPANSION_SIZE)) { Lock.ReleaseMutex(); return(false); } sourceHandle = AllocateSourceHandleImpl(source.SourceName); } SourcesLookupTable[source.SourceName] = sourceHandle; } // We must have here a valid source handle source.SourceHandle = sourceHandle; SourcesHandleTable[sourceHandle] = source; ActiveSource activeSource = source as ActiveSource; if (activeSource == null) { // regular sources with associated memory storage RegisterSourceStorageImpl(sourceHandle, source.Storage.GetHandle(), source.ControlFlags); } else { RegisterActiveSourceImpl(sourceHandle, activeSource.EventTypeHandle, activeSource.DebugBufferAddress, activeSource.Count, activeSource.EntrySize); // Active sources, the object does the event buffer management } Lock.ReleaseMutex(); return(true); }