private long Wait()
{
// Wait for the next timer event. If we have missed any the number is written to "missed"
byte[] buf = new byte[8];
var handle = GCHandle.Alloc(buf, GCHandleType.Pinned);
IntPtr pointer = handle.AddrOfPinnedObject();
int ret = LinuxInterop.read(this.fileDescriptor, pointer, buf.Length);
// ret = bytes read
long missed = Marshal.ReadInt64(pointer);
handle.Free();
if (ret < 0)
{
throw new Exception($"Error in read = {ret}");
}
return(missed);
}
