// 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);
}
public virtual void UnRegisterSource(EventSource source)
{
}
// Public methods
// Private methods
internal override void Initialize()
{
base.Initialize();
EventTable = new Hashtable();
SourcesLookupTable = new Hashtable();
SourcesHandleTable = new Hashtable();
UIntPtr RepositoryStorageHandle = FetchLocalStorage();
if (RepositoryStorageHandle != 0)
{
TypesRepository = EventingStorage.CreateStorageFromHandle(RepositoryStorageHandle);
// Fetch now the existing source list created before initializing the controller
int currentSize = 20;
UIntPtr [] sourceArray = new UIntPtr[currentSize];
if (sourceArray != null)
{
unsafe
{
fixed(UIntPtr *ptr = sourceArray)
{
int sourceCount = QuerySystemSources(ptr, (ushort)currentSize);
while (sourceCount > currentSize)
{
sourceArray = new UIntPtr[sourceCount];
sourceCount = QuerySystemSources(ptr, (ushort)currentSize);
}
for (int i = 0; i < sourceCount; i++)
{
UIntPtr sourceHandle = sourceArray[i];
UIntPtr storageHandle = 0;
string bufferName = "";
if (GetNativeSourceName(sourceHandle, ref storageHandle, ref bufferName))
{
EventSource source = new EventSource(this, bufferName, storageHandle);
if (source != null)
{
source.Register();
}
}
}
}
}
}
}
else
{
TypesRepository = EventingStorage.CreateLocalStorage(QualityOfService.PermanentEvents,
BUFFER_EXPANSION_SIZE);
SetRepositoryStorage(TypesRepository.GetHandle());
}
string sourceName = "ControllerLog";
#if SINGULARITY_KERNEL
sourceName = sourceName + "{kernel}";
#else
unsafe {
int argMaxLen = ProcessService.GetStartupArg(0, null, 0);
char[] argArray = new char [argMaxLen];
fixed(char *argptr = &argArray[0])
{
int len = ProcessService.GetStartupArg(0,
argptr,
argArray.Length);
sourceName = sourceName + "{" + String.StringCTOR(argptr, 0, len) + "}";
sourceName = sourceName + "(PID:" + ProcessService.GetCurrentProcessId() + ")";
}
}
#endif
InternalSource = ControllerLogger.Create(sourceName, TypesRepository);
}
//
// Source related methods
//
public virtual bool RegisterSource(EventSource source)
{
return(false);
}