public unsafe TraceEventInfoCPtr Build()
{
var strings = new[] {
ProviderName,
LevelName,
ChannelName,
KeywordsName,
TaskName,
OpcodeName,
EventMessage,
ProviderMessage,
ActivityIDName,
RelatedActivityIDName
};
var size = sizeof(TRACE_EVENT_INFO);
size += sizeof(EVENT_PROPERTY_INFO) * Math.Max(0, (int)PropertyCount - 1);
int stringsOffset = size;
foreach (var s in strings)
{
if (!string.IsNullOrEmpty(s))
{
size += (s.Length + 1) * 2;
}
}
var info = (TRACE_EVENT_INFO *)allocator.Allocate(size);
*info = new TRACE_EVENT_INFO();
info->ProviderGuid = ProviderGuid;
info->EventGuid = EventGuid;
info->EventDescriptor = EventDescriptor;
info->DecodingSource = DecodingSource;
info->PropertyCount = PropertyCount;
info->TopLevelPropertyCount = TopLevelPropertyCount;
info->Flags = Flags;
for (int i = 0; i < EventPropertyInfos.Length; ++i)
{
(&info->EventPropertyInfoArray)[i] = EventPropertyInfos[i];
}
uint offset = (uint)stringsOffset;
info->ProviderNameOffset = AddString(info, ref offset, ProviderName);
info->LevelNameOffset = AddString(info, ref offset, LevelName);
info->ChannelNameOffset = AddString(info, ref offset, ChannelName);
info->KeywordsNameOffset = AddString(info, ref offset, KeywordsName);
info->TaskNameOffset = AddString(info, ref offset, TaskName);
info->OpcodeNameOffset = AddString(info, ref offset, OpcodeName);
info->EventMessageOffset = AddString(info, ref offset, EventMessage);
info->ProviderMessageOffset = AddString(info, ref offset, ProviderMessage);
info->ActivityIDNameOffset = AddString(info, ref offset, ActivityIDName);
info->RelatedActivityIDNameOffset = AddString(info, ref offset, RelatedActivityIDName);
return(new TraceEventInfoCPtr(info, (uint)size));
}
public unsafe EventRecordCPtr Build()
{
if (userData.Count > ushort.MaxValue)
{
throw new OverflowException();
}
ushort userDataLength = (ushort)userData.Count;
var pr = (EVENT_RECORD *)allocator.Allocate(sizeof(EVENT_RECORD) + userDataLength);
*pr = record;
pr->UserData = (IntPtr)((byte *)pr + sizeof(EVENT_RECORD));
pr->UserDataLength = userDataLength;
Marshal.Copy(userData.ToArray(), 0, pr->UserData, userDataLength);
return(new EventRecordCPtr(pr));
}