unsafe void InitReader()
{
string prefix = sm.instanceType == eInstanceType.Slave ? "1" : "2";
if (ewh_Reader_ReadyToRead == null)
{
ewh_Reader_ReadyToRead = new EventWaitHandle(false, EventResetMode.ManualReset, sm.uniqueHandlerName + prefix + "_SharmNet_ReadyToRead");
ewh_Reader_ReadyToWrite = new EventWaitHandle(true, EventResetMode.ManualReset, sm.uniqueHandlerName + prefix + "_SharmNet_ReadyToWrite");
ewh_Reader_ReadyToWrite.Set();
}
//if (sm.instanceType == tiesky.com.SharmIpc.eInstanceType.Slave)
//{
// Console.WriteLine("My reader handlers:");
// Console.WriteLine(sm.uniqueHandlerName + prefix + "_SharmNet_ReadyToRead");
// Console.WriteLine(sm.uniqueHandlerName + prefix + "_SharmNet_ReadyToWrite");
// Console.WriteLine("-------");
//}
if (Reader_mmf == null)
{
//Reader_mmf = System.IO.MemoryMappedFiles.MemoryMappedFile.CreateOrOpen(sm.uniqueHandlerName + prefix + "_SharmNet_MMF", sm.bufferCapacity, MemoryMappedFileAccess.ReadWrite);
//Reader_accessor = Reader_mmf.CreateViewAccessor(0, sm.bufferCapacity);
var security = new MemoryMappedFileSecurity();
security.AddAccessRule(new System.Security.AccessControl.AccessRule<MemoryMappedFileRights>(
new System.Security.Principal.SecurityIdentifier(System.Security.Principal.WellKnownSidType.WorldSid, null),
MemoryMappedFileRights.FullControl,
System.Security.AccessControl.AccessControlType.Allow));
//Reader_mmf = System.IO.MemoryMappedFiles.MemoryMappedFile.CreateOrOpen(@"Global\MapName1", sm.bufferCapacity,
Reader_mmf = System.IO.MemoryMappedFiles.MemoryMappedFile.CreateOrOpen(sm.uniqueHandlerName + prefix + "_SharmNet_MMF", sm.bufferCapacity,
MemoryMappedFileAccess.ReadWrite, MemoryMappedFileOptions.DelayAllocatePages, security, System.IO.HandleInheritability.Inheritable);
Reader_accessor = Reader_mmf.CreateViewAccessor(0, sm.bufferCapacity);
Reader_accessor.SafeMemoryMappedViewHandle.AcquirePointer(ref Reader_accessor_ptr);
}
Task.Run(() =>
{
byte[] hdr = null;
byte[] ret=null;
ushort iCurChunk = 0;
ushort iTotChunk = 0;
ulong iMsgId = 0;
int iPayLoadLen = 0;
ulong iResponseMsgId = 0;
eMsgType msgType = eMsgType.RpcRequest;
try
{
while (true)
{
ewh_Reader_ReadyToRead.WaitOne();
if (ewh_Reader_ReadyToRead == null) //Special Dispose case
return;
ewh_Reader_ReadyToRead.Reset();
//Reading data from MMF
//Reading header
hdr = ReadBytes(Reader_accessor_ptr, 0, protocolLen);
msgType = (eMsgType)hdr[0];
//Parsing header
switch (msgType)
{
case eMsgType.ErrorInRpc:
iPayLoadLen = BitConverter.ToInt32(hdr, 9); //+4
iResponseMsgId = BitConverter.ToUInt64(hdr, 17); //+8
this.sm.SharmIPC.InternalDataArrived(msgType, iResponseMsgId, null);
break;
case eMsgType.RpcResponse:
case eMsgType.RpcRequest:
case eMsgType.Request:
bool zeroByte = false;
iMsgId = BitConverter.ToUInt64(hdr, 1); //+8
iPayLoadLen = BitConverter.ToInt32(hdr, 9); //+4
if (iPayLoadLen == Int32.MaxValue)
{
zeroByte = true;
iPayLoadLen = 0;
}
iCurChunk = BitConverter.ToUInt16(hdr, 13); //+2
iTotChunk = BitConverter.ToUInt16(hdr, 15); //+2
iResponseMsgId = BitConverter.ToUInt64(hdr, 17); //+8
if (iCurChunk == 1)
{
chunksCollected = null;
MsgId_Received = iMsgId;
}
else if (iCurChunk != currentChunk + 1)
{
//Wrong income, sending special signal back, waiting for new MsgId
switch (msgType)
{
case eMsgType.RpcRequest:
this.SendMessage(eMsgType.ErrorInRpc, this.GetMessageId(), null, iMsgId);
break;
case eMsgType.RpcResponse:
this.sm.SharmIPC.InternalDataArrived(eMsgType.ErrorInRpc, iResponseMsgId, null);
break;
}
break;
}
if (iTotChunk == iCurChunk)
{
if (chunksCollected == null)
this.sm.SharmIPC.InternalDataArrived(msgType, (msgType == eMsgType.RpcResponse) ? iResponseMsgId : iMsgId, iPayLoadLen == 0 ? ((zeroByte) ? new byte[0] : null) : ReadBytes(Reader_accessor_ptr, protocolLen, iPayLoadLen));
else
{
ret = new byte[iPayLoadLen + chunksCollected.Length];
Buffer.BlockCopy(chunksCollected, 0, ret, 0, chunksCollected.Length);
Buffer.BlockCopy(ReadBytes(Reader_accessor_ptr, protocolLen, iPayLoadLen), 0, ret, chunksCollected.Length, iPayLoadLen);
this.sm.SharmIPC.InternalDataArrived(msgType, (msgType == eMsgType.RpcResponse) ? iResponseMsgId : iMsgId, ret);
}
chunksCollected = null;
currentChunk = 0;
}
else
{
if (chunksCollected == null)
{
chunksCollected = ReadBytes(Reader_accessor_ptr, protocolLen, iPayLoadLen);
}
else
{
byte[] tmp = new byte[chunksCollected.Length + iPayLoadLen];
Buffer.BlockCopy(chunksCollected, 0, tmp, 0, chunksCollected.Length);
Buffer.BlockCopy(ReadBytes(Reader_accessor_ptr, protocolLen, iPayLoadLen), 0, tmp, chunksCollected.Length, iPayLoadLen);
chunksCollected = tmp;
}
currentChunk = iCurChunk;
}
break;
default:
//Unknown protocol type
chunksCollected = null;
currentChunk = 0;
//Wrong income, doing nothing
throw new Exception("tiesky.com.SharmIpc: Reading protocol contains errors");
//break;
}
//Setting signal
ewh_Reader_ReadyToWrite.Set();
}
}
catch(System.Exception ex)
{
/*
System.ObjectDisposedException: Das SafeHandle wurde geschlossen. bei System.Runtime.InteropServices.SafeHandle.DangerousAddRef(Boolean& success)
bei System.StubHelpers.StubHelpers.SafeHandleAddRef(SafeHandle pHandle, Boolean& success)
bei Microsoft.Win32.Win32Native.SetEvent(SafeWaitHandle handle) bei System.Threading.EventWaitHandle.Set() bei tiesky.com.SharmIpcInternals.ReaderWriterHandler.b__28_0()
*/
this.sm.SharmIPC.LogException("SharmIps.ReaderWriterHandler.InitReader LE", ex);
}
});
}
