public static byte[] ToArray(this Stream stream)
{
var bufferOwner = BufferArrayPool <byte> .Rent(1024 * 16);
var buffer = bufferOwner.AsSpan();
var totalRead = 0;
int read;
try
{
while ((read = stream.Read(buffer.Slice(totalRead, buffer.Length - totalRead))) > 0)
{
totalRead += read;
if (totalRead == buffer.Length)
{
BufferArrayPool <byte> .Grow(ref bufferOwner, bufferOwner.Length * 2);
buffer = bufferOwner.AsSpan();
}
}
var bytes = new byte[totalRead];
Buffer.BlockCopy(bufferOwner, 0, bytes, 0, totalRead);
return(bytes);
}
finally
{
buffer.Slice(0, totalRead).Clear();
BufferArrayPool <byte> .Return(bufferOwner);
}
}
public static async Task <byte[]> ToArrayAsync(this Stream stream, CancellationToken cancellationToken = default)
{
var bufferOwner = BufferArrayPool <byte> .Rent(1024 * 16);
var buffer = bufferOwner.AsMemory();
var totalRead = 0;
int read;
try
{
while ((read = await stream.ReadAsync(buffer.Slice(totalRead, buffer.Length - totalRead), cancellationToken)) > 0)
{
totalRead += read;
if (totalRead == buffer.Length)
{
BufferArrayPool <byte> .Grow(ref bufferOwner, buffer.Length * 2);
buffer = bufferOwner.AsMemory();
}
}
var bytes = new byte[totalRead];
buffer.Slice(0, totalRead).Span.CopyTo(bytes.AsSpan());
return(bytes);
}
finally
{
buffer.Span.Slice(0, totalRead).Clear();
BufferArrayPool <byte> .Return(bufferOwner);
}
}
public static async Task <byte[]> ToArrayAsync(this Stream stream, CancellationToken cancellationToken = default)
{
var buffer = BufferArrayPool <byte> .Rent(1024 * 16);
var totalRead = 0;
int read;
try
{
while ((read = await stream.ReadAsync(buffer, totalRead, buffer.Length - totalRead, cancellationToken)) > 0)
{
totalRead += read;
if (totalRead == buffer.Length)
{
BufferArrayPool <byte> .Grow(ref buffer, buffer.Length * 2);
}
}
var bytes = new byte[totalRead];
Buffer.BlockCopy(buffer, 0, bytes, 0, totalRead);
return(bytes);
}
finally
{
Array.Clear(buffer, 0, totalRead);
BufferArrayPool <byte> .Return(buffer);
}
}
public static unsafe T Deserialize <T>(string queryString)
{
var model = Instantiator.CreateInstance <T>();
var typeDetail = TypeAnalyzer.GetTypeDetail(typeof(T));
var bufferOwner = BufferArrayPool <char> .Rent(256);
var buffer = bufferOwner.AsSpan();
var bufferLength = 0;
try
{
fixed(char *pFixed = queryString)
{
char * p = pFixed;
string name = null;
for (var i = 0; i < queryString.Length; i++)
{
var c = *p;
switch (c)
{
case '=':
if (name != null)
{
throw new Exception($"Invalid query string at position {i}");
}
#if NETSTANDARD2_0
name = new String(bufferOwner, 0, bufferLength);
#else
name = new String(buffer.Slice(0, bufferLength));
#endif
bufferLength = 0;
break;
case '&':
if (name == null)
{
throw new Exception($"Invalid query string at position {i}");
}
#if NETSTANDARD2_0
var value = new String(bufferOwner, 0, bufferLength);
#else
var value = new String(buffer.Slice(0, bufferLength));
#endif
SetValue(typeDetail, model, WebUtility.UrlDecode(name), WebUtility.UrlDecode(value));
name = null;
bufferLength = 0;
break;
default:
if (bufferLength == buffer.Length)
{
BufferArrayPool <char> .Grow(ref bufferOwner, bufferOwner.Length * 2);
buffer = bufferOwner.AsSpan();
}
buffer[bufferLength++] = c;
break;
}
p++;
}
if (name != null)
{
#if NETSTANDARD2_0
var value = new String(bufferOwner, 0, bufferLength);
#else
var value = new String(buffer.Slice(0, bufferLength));
#endif
SetValue(typeDetail, model, WebUtility.UrlDecode(name), WebUtility.UrlDecode(value));
bufferLength = 0;
}
}
}
finally
{
BufferArrayPool <char> .Return(bufferOwner);
}
return(model);
}
