private bool EventWaitHandleThread()
{
message_wait.WaitOne();
//read what's in the shared memory
SMemIPCData data = IPCCodec.Deserialize(phile_stream);
//pass to program for processing
switch (data.messageType)
{
case 2: //compute function
SMemIPCData results = new SMemIPCData();
results.messageType = 3;
//call VBA handler
List <ResultStruct> res_temp = vba_core.ComputeOperator(data.messageValue, data.parameters, data.N, data.num_parameters);
//place results in shared memory
results.Results = res_temp;
IPCCodec.Serialize(phile_stream, results);
//store the result prefix length
phile_prefix_stream.Write(0, phile_stream.Position);
break;
case 4: //store in GPU
break;
case 5: //retrieve from GPU
break;
case 6:
string[] parameters = data.messageValue.Split('|');
Program.HandleFile(parameters[0], parameters[1]);
break;
default:
break;
}
message_handled.Set();
return(false);
}
public SMemIPCData SendMessage(SMemIPCData data_in)
{
try
{
sharedmem_mutex.WaitOne(); //take the mutex
//save message in shared memory
IPCCodec.Serialize(phile_stream, data_in);
//prepare the message prefix
phile_prefix.Write(0, phile_stream.Position);
message_wait.Set(); //signal message ready
message_handled.WaitOne(); //wait for reply ready signal
//copy results from shared memory
long result_size = phile_prefix.ReadInt64(0);
if (result_size > phile_stream.Capacity)
{
//enlarge the view stream if the result is too big
try
{
phile_stream.Close();
phile_stream = phile.CreateViewStream(sizeof(long), result_size);
}
catch
{
throw new SystemException("ijiCore: Result set too large.");
}
}
return(IPCCodec.Deserialize(phile_stream));
}
catch (Exception e)
{
return(null);
}
finally
{
sharedmem_mutex.ReleaseMutex();
}
}