public static unsafe void Advise <T>(this Ipc scope, string method, Action <T> proxy)
where T : struct
{
CallFrameListDescriptor *descriptor = null; //scope.GetObject<CallFrameListDescriptor>("CallFrameListDescriptor:" + method);
CallFrameListNode * node = null; //scope.GetObject<CallFrameListNode>("CallFrameListNode:" + descriptor->CallFrameListHead);
//Seek to the end of the frame list
while (Interlocked.CompareExchange(ref node->NextCallFrame, 0, 0) != 0)
{
node = null; //scope.GetObject<CallFrameListNode>("CallFrameListNode:" + node->NextCallFrame);
}
//The current value of node is the one before any calls we'd process
new Thread(() =>
{
while (true)
{
//while there's no node to process, wait patiently
while (Interlocked.CompareExchange(ref node->NextCallFrame, 0, 0) == 0)
{
Thread.Sleep(1);
}
//Move to the unprocessed frame
node = null; //scope.GetObject<CallFrameListNode>("CallFrameListNode:" + node->NextCallFrame);
//Process it
Ipc <T> frameData = scope.GetObject <T>("CallFrame:" + node->FrameId);
proxy(frameData.Value);
}
}).Start();
}
public static unsafe void QueueCall <T>(this Ipc scope, string method, T frameContent)
where T : struct
{
CallFrameListDescriptor *descriptor = null; //scope.GetObject<CallFrameListDescriptor>("CallFrameListDescriptor:" + method);
CallFrameListNode * node = null; //scope.GetObject<CallFrameListNode>("CallFrameListNode:" + descriptor->CallFrameListHead);
Luid id = new Luid {
Whole = Guid.NewGuid()
};
MemoryMappedFile data;
//Get a space to store the frame in
do
{
try
{
data = MemoryMappedFile.CreateNew($"{scope.Name}:CallFrames:{id.Low}", Marshal.SizeOf <T>(), MemoryMappedFileAccess.ReadWrite);
//Write frameContent into data
break;
}
catch
{
id = new Luid {
Whole = Guid.NewGuid()
};
}
} while (true);
//Acquire the tail of the call frame list
while (Interlocked.CompareExchange(ref node->NextCallFrame, id.Low, 0) != 0)
{
node = null; //scope.GetObject<CallFrameListNode>("CallFrameListNode:" + node->NextCallFrame);
}
node = null; //scope.GetObject<CallFrameListNode>("CallFrameListNode:" + id.Low);
//Write the current time to the call frame so it may be reclaimed at some point
//write
Interlocked.Exchange(ref descriptor->CallFrameListHead, id.Low);
}
