public MappedFileBuffer(byte[] data)
{
_file = MemoryMappedFile.CreateNew(Guid.NewGuid().ToString(), data.Length);
_stream = _file.CreateViewStream();
_stream.Write(data, 0, data.Length);
//File.WriteAllBytes(_file.Name, data);
_size = (uint)data.Length;
}
public void RunProcess(Action<Action<StringDictionary>> process)
{
var key = Guid.NewGuid().GetHashCode().ToString("X");
var processMgmt = new AutoResetEvent(false);
var queueMgmt = new AutoResetEvent(false);
var environmentKeyRead = new AutoResetEvent(false);
var handles = new List<WaitHandle> { processMgmt };
_profilerRequestsInformation = new EventWaitHandle(false, EventResetMode.ManualReset, @"Local\OpenCover_Profiler_Communication_SendData_Event_" + key);
_informationReadyForProfiler = new EventWaitHandle(false, EventResetMode.ManualReset, @"Local\OpenCover_Profiler_Communication_ReceiveData_Event_" + key);
_informationReadByProfiler = new EventWaitHandle(false, EventResetMode.ManualReset, @"Local\OpenCover_Profiler_Communication_ChunkData_Event_" + key);
handles.Add(_profilerRequestsInformation);
_profilerHasResults = new EventWaitHandle(false, EventResetMode.ManualReset, @"Local\OpenCover_Profiler_Communication_SendResults_Event_" + key);
_resultsHaveBeenReceived = new EventWaitHandle(false, EventResetMode.ManualReset, @"Local\OpenCover_Profiler_Communication_ReceiveResults_Event_" + key);
handles.Add(_profilerHasResults);
_messageQueue = new ConcurrentQueue<byte[]>();
using (var mmfComms = MemoryMappedFile.CreateNew(@"Local\OpenCover_Profiler_Communication_MemoryMapFile_" + key, maxMsgSize))
using (var mmfResults = MemoryMappedFile.CreateNew(@"Local\OpenCover_Profiler_Results_MemoryMapFile_" + key, maxMsgSize))
using (_streamAccessorComms = mmfComms.CreateViewStream(0, maxMsgSize, MemoryMappedFileAccess.ReadWrite))
using (_streamAccessorResults = mmfResults.CreateViewStream(0, maxMsgSize, MemoryMappedFileAccess.ReadWrite))
{
_streamAccessorResults.Write(BitConverter.GetBytes(0), 0, 4);
ThreadPool.QueueUserWorkItem((state) =>
{
try
{
process(dictionary =>
{
if (dictionary == null) return;
dictionary[@"OpenCover_Profiler_Key"] = key;
dictionary["Cor_Profiler"] = "{1542C21D-80C3-45E6-A56C-A9C1E4BEB7B8}";
dictionary["Cor_Enable_Profiling"] = "1";
environmentKeyRead.Set();
});
}
finally
{
processMgmt.Set();
}
});
ThreadPool.QueueUserWorkItem((state) =>
{
while (true)
{
byte[] data;
while (!_messageQueue.TryDequeue(out data))
Thread.Yield();
if (data.Length == 0)
{
_messageHandler.Complete();
queueMgmt.Set();
return;
}
_persistance.SaveVisitData(data);
}
});
// wait for the environment key to be read
if (WaitHandle.WaitAny(new[] { environmentKeyRead }, new TimeSpan(0, 0, 0, 10)) == -1)
return;
_dataCommunication = new byte[maxMsgSize];
var pinnedComms = GCHandle.Alloc(_dataCommunication, GCHandleType.Pinned);
try
{
ProcessMessages(handles, pinnedComms);
}
finally
{
pinnedComms.Free();
}
queueMgmt.WaitOne();
}
}
