public static GCEventSource Create(string sourceName, uint typeSize, ulong options)
{
uint qos = QualityOfService.RecyclableEvents;
if (options != 0)
{
qos |= QualityOfService.OOM_BreakOnRecycle;
}
EventingStorage storage = EventingStorage.CreateLocalStorage(qos, typeSize);
if (storage == null)
{
return(null);
}
GCEventSource Logger = new GCEventSource(sourceName,
storage,
ENABLE_ALL_MASK);
if (Logger != null)
{
Logger.Register();
}
return(Logger);
}
// Initialization, prior to attempting to set this profiler into the GC. It's
// inappropriate to do this stuff inside a constructor.
internal void Initialize(ulong Size, ulong Flags)
{
options = Flags;
typeTable = new Hashtable();
stackTable = new Hashtable();
funcTable = new Hashtable();
stackEips = new UIntPtr[stackSize];
stackNos = new uint[stackSize];
generations = new int[maxGeneration];
functionsIDs = new uint[stackSize];
Buffer = new ProfilerBuffer();
tempGCBuffer = new UIntPtr[tempBufferSize];
tempGCBufferEntries = 0;
#if LEGACY_GCTRACING
bufferSize = Size;
unsafe {
// Allocate the memory indicated as parameter, as nonGC
#if SINGULARITY_KERNEL
UIntPtr pages = Microsoft.Singularity.Memory.MemoryManager.PagesFromBytes(bufferSize);
bufferMemory = (byte *)Microsoft.Singularity.Memory.MemoryManager.KernelAllocate(
pages, null, 0, System.GCs.PageType.NonGC).ToPointer();
#else // !SINGULARITY_KERNEL
bufferMemory = (byte *)PageTableService.Allocate(bufferSize);
#endif //SINGULARITY_KERNEL
if (bufferMemory != null)
{
// When we set this, we are no longer single-threaded:
ProfilerBuffer.SetupBuffer(bufferMemory, bufferSize);
this.enabled = true;
}
}
#else // LEGACY_GCTRACING
typeSource = GCTypeSource.Create("GC.TypeDefinitions", (uint)Size, options);
EventSource = GCEventSource.Create("GC.Events", (uint)Size, options);
if ((typeSource == null) || (EventSource == null))
{
typeSource = null;
EventSource = null;
this.enabled = false;
}
else
{
TypeStorageHandle = typeSource.Storage.GetHandle();
StorageHandle = EventSource.Storage.GetHandle();
this.enabled = true;
}
#endif // LEGACY_GCTRACING
}