public void Read <T>(long position, out T structure) where T : struct
{
IntPtr dest = Marshal.AllocHGlobal(Marshal.SizeOf(default(T)));
Win32APIs.memcpy(dest, new IntPtr(baseAccessor.ToInt64() + position), (int)Marshal.SizeOf(default(T)));
structure = (T)Marshal.PtrToStructure(dest, typeof(T));
}
public void Dispose()
{
if (baseAccessor != IntPtr.Zero)
{
Win32APIs.CloseHandle(baseAccessor);
}
}
public MemoryMappedViewAccessor(IntPtr baseMap)
{
this.baseMap = baseMap;
baseAccessor = Win32APIs.MapViewOfFile(this.baseMap, MemoryMappedFileRights.ReadWrite, 0, 0, 0);
//int* a = (int*)Win32APIs.MapViewOfFile(this.baseMap, MemoryMappedFileRights.Read, 0, 0, 0);
}
public void Dispose()
{
if (basemap != IntPtr.Zero)
{
Win32APIs.UnmapViewOfFile(basemap);
}
}
//받기 위한 연결시작
public void Start()
{
this.handle =
Win32APIs.CreateFile(
this.pipeName,
GENERIC_READ,
0,
IntPtr.Zero,
OPEN_EXISTING,
FILE_FLAG_OVERLAPPED,
IntPtr.Zero);
//서버가 동작을 안하고있음
if (this.handle.IsInvalid)
{
if (Error != null)
{
nuiApp.Queue_Event(Error);
}
return;
}
this.stream = new FileStream(this.handle, FileAccess.Read, BUFFER_SIZE, true);
WaitForData();
}
public void Write <T>(long position, ref T structure) where T : struct
{
IntPtr structurePtr = Marshal.AllocHGlobal(Marshal.SizeOf(structure));
Marshal.StructureToPtr(structure, structurePtr, false);
Win32APIs.memcpy(new IntPtr(baseAccessor.ToInt64() + position), structurePtr, (int)Marshal.SizeOf(default(T)));
Marshal.FreeHGlobal(structurePtr);
}
public static MemoryMappedFile OpenExisting(string mappedName, MemoryMappedFileRights desiredAccessRights = MemoryMappedFileRights.ReadWrite)
{
MemoryMappedFile mappedFile = new MemoryMappedFile();
//mappedFile.map = Win32APIs.OpenFileMapping(desiredAccessRights, false, @"Global\" + mappedName);
mappedFile.rights = desiredAccessRights;
mappedFile.basemap = Win32APIs.OpenFileMapping(mappedFile.rights, false, mappedName);
if (mappedFile.basemap == IntPtr.Zero) //생성 실패
{
return(null);
}
return(mappedFile);
}