public /*unsafe */ void RunAsm(params byte[] asm)
{
IntPtr buf = VirtualAlloc(IntPtr.Zero, (uint)asm.Length, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
Marshal.Copy(asm, 0, buf, asm.Length);
IntReturner ptr = (IntReturner)Marshal.GetDelegateForFunctionPointer(buf, typeof(IntReturner));
//fixed (byte* newBuffer = &asm[0])
//{
ptr();
//del(newBuffer);
//}
//Console.WriteLine(ptr());
}
static void Main(string[] args)
{
List <byte> bodyBuilder = new List <byte>();
bodyBuilder.Add(0xb8); // MOV EAX,
bodyBuilder.AddRange(BitConverter.GetBytes(42)); // 42
bodyBuilder.Add(0xc3); // RET
byte[] body = bodyBuilder.ToArray();
IntPtr buf = VirtualAlloc(IntPtr.Zero, (uint)body.Length, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
Marshal.Copy(body, 0, buf, body.Length);
IntReturner ptr = (IntReturner)Marshal.GetDelegateForFunctionPointer(buf, typeof(IntReturner));
Console.WriteLine(ptr());
}
public static void test()
{
List <byte> bodyBuilder = new List <byte>();
bodyBuilder.Add(0xb8);
bodyBuilder.AddRange(BitConverter.GetBytes(42));
bodyBuilder.Add(0xc3);
byte[] body = bodyBuilder.ToArray();
IntPtr buf = VirtualAlloc(IntPtr.Zero, (uint)body.Length, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
Marshal.Copy(body, 0, buf, body.Length);
IntReturner ptr = (IntReturner)Marshal.GetDelegateForFunctionPointer(buf, typeof(IntReturner));
Console.WriteLine(ptr());
int here = 5;
int n = addInt(5, 7);
}
static void Main(string[] args)
{
WorkHandler wh = DoSomething;
Thread.CurrentThread.Name = "Main Thread";
var ar = wh.BeginInvoke(20, asyncResult => { Console.WriteLine("DoSomething Done"); }, null);
for (int i = 0; i < 20; i++)
{
IntReturner ir = GetInteger;
var ar2 = ir.BeginInvoke(asyncResult =>
{
Console.WriteLine("GetInteger Done");
}, null);
}
int remainingWorkerThreads, remainingIOThreads;
ThreadPool.GetAvailableThreads(out remainingWorkerThreads, out remainingIOThreads);
Console.WriteLine($"While the worker thread is doing its work, here we are in the {Thread.CurrentThread.Name} again. Remaining threads: {remainingWorkerThreads}");
Console.ReadKey();
}
