public void writeToTarget(IByteTarget _target, IByteBuffer fb)
{
const int seg = 4096000;
int gcd = (int)(fb.Size / seg);
int gcf = (int)(fb.Size % seg);
if (gcd == 0)
{
_target.Write(fb.Data, 0, fb.Size);
}
else
{
for (int i = 0; i < gcd; i++)
{
var rgBuffer = fb.GetByteRange(i * seg, seg);
_target.Write(rgBuffer, 0, seg);
rgBuffer = null;
}
if (gcf > 0)
{
var rgBuffer = fb.GetByteRange(gcd * seg, gcf);
_target.Write(rgBuffer, 0, (uint)gcf);
rgBuffer = null;
}
}
}
private static async Task WriteBufferAsync(IByteTarget target, IByteBuffer buffer, uint largeObjectSize)
{
var offset = 0;
var remainingSize = buffer.Size;
while (remainingSize > largeObjectSize)
{
var range = buffer.GetByteRange(offset, (int)largeObjectSize);
await target.WriteAsync(range, 0, largeObjectSize).ConfigureAwait(false);
offset += (int)largeObjectSize;
remainingSize -= largeObjectSize;
}
target.Write(buffer.GetByteRange(offset, (int)remainingSize), 0, remainingSize);
}
private static void WriteBuffer(IByteTarget target, IByteBuffer buffer, uint largeObjectSize)
{
var offset = 0;
var remainingSize = buffer.Size;
while (remainingSize > largeObjectSize)
{
var range = buffer.GetByteRange(offset, (int)largeObjectSize);
target.Write(range, 0, largeObjectSize);
offset += (int)largeObjectSize;
remainingSize -= largeObjectSize;
}
target.Write(buffer.GetByteRange(offset, (int)remainingSize), 0, remainingSize);
}
public static T Get <T>(IByteBuffer buffer, int n)
{
int size = Marshal.SizeOf <T>();
var values = new T[1];
if (buffer.IsMemory)
{
System.Buffer.BlockCopy(buffer.Data, size * n, values, 0, size);
}
else
{
byte[] temp = ArrayPool <byte> .Shared.Rent(size);
try
{
buffer.GetByteRange(size * n, size, temp);
System.Buffer.BlockCopy(temp, 0, values, 0, size);
}
finally
{
ArrayPool <byte> .Shared.Return(temp);
}
}
return(values[0]);
}
public static T Get <T>(IByteBuffer buffer, int n)
{
int size = Marshal.SizeOf(typeof(T));
T[] values = new T[1];
if (buffer.IsMemory)
{
System.Buffer.BlockCopy(buffer.Data, size * n, values, 0, size);
}
else
{
byte[] temp = buffer.GetByteRange(size * n, size);
System.Buffer.BlockCopy(temp, 0, values, 0, size);
}
return(values[0]);
}
private static byte[] GetBufferRange(IByteBuffer buffer, uint offset, int count)
{
byte[] range = null;
if (buffer is CompositeByteBuffer)
{
var cbuf = buffer as CompositeByteBuffer;
range = cbuf.GetByteRange(offset, count);
}
else
{
if (offset > ((uint)int.MaxValue))//other buffers only accept ints
{
string bufName = nameof(buffer);
throw new System.ArgumentOutOfRangeException("Offset greater than " + bufName + " buffer allows");
}
range = buffer.GetByteRange((int)offset, count);
}
return(range);
}
