private SharedMemory(string name, long size)
{
this.name = name;
handle = NativeMappedFile.CreateFileMapping(NativeMappedFile.INVALID_HANDLE,
NativeMappedFile.NULL_HANDLE,
(int)NativeMappedFile.MapProtection.ReadWrite,
(int)((size >> 32) & 0xFFFFFFFF),
(int)(size & 0xFFFFFFFF), name);
if (handle == NativeMappedFile.NULL_HANDLE)
{
var error = Marshal.GetHRForLastWin32Error();
throw new IOException("CreateFileMapping returned: " + error);
}
long offset = 0L;
baseAddress = NativeMappedFile.MapViewOfFile(
handle, (int)NativeMappedFile.MapAccess.FileMapAllAccess,
(int)((offset >> 32) & 0xFFFFFFFF),
(int)(offset & 0xFFFFFFFF), (IntPtr)size);
if (BaseAddress == NativeMappedFile.INVALID_HANDLE)
{
throw new IOException("MapViewOfFile returned: " + Marshal.GetHRForLastWin32Error());
}
}
protected virtual void Dispose(bool disposing)
{
if (!isDisposed)
{
isDisposed = true;
lock (taskLocker)
{
using (locker.Using())
{
shares.Remove(name);
NativeMappedFile.CloseHandle(handle);
}
}
}
}
