private ZErrorCode Deflate(ZFlushCode flushCode)
{
ZErrorCode errC;
try
{
errC = _zlibStream.Deflate(flushCode);
}
catch (Exception cause)
{
throw new ZLibException("SR.ZLibErrorDLLLoadError", cause);
}
switch (errC)
{
case ZErrorCode.Ok:
case ZErrorCode.StreamEnd:
return(errC);
case ZErrorCode.BufError:
return(errC); // This is a recoverable error
case ZErrorCode.StreamError:
throw new ZLibException("SR.ZLibErrorInconsistentStream", "deflate", (int)errC, _zlibStream.GetErrorMessage());
default:
throw new ZLibException("SR.ZLibErrorUnexpected", "deflate", (int)errC, _zlibStream.GetErrorMessage());
}
}
private unsafe ZErrorCode ReadDeflateOutput(IntPtr buffer, int count, ZFlushCode flushCode, out int bytesRead)
{
lock (_syncLock)
{
_zlibStream.NextOut = buffer;
_zlibStream.AvailOut = (uint)count;
ZErrorCode errC = Deflate(flushCode);
bytesRead = count - (int)_zlibStream.AvailOut;
return(errC);
}
}