include/comphelper/bytereader.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9 #pragma once
  10
  11 #include <sal/types.h>
  12 #include <comphelper/comphelperdllapi.h>
  13 #include <com/sun/star/uno/Sequence.hxx>
  14
  15 namespace comphelper
  16 {
  17 /**
  18  * Interface that we can cast to, to bypass the inefficiency of using Sequence<sal_Int8>
  19  * when reading via XInputStream.
  20  */
  21 class COMPHELPER_DLLPUBLIC SAL_LOPLUGIN_ANNOTATE("crosscast") ByteReader
  22 {
  23 public:
  24     virtual ~ByteReader();
  25     virtual sal_Int32 readSomeBytes(sal_Int8* aData, sal_Int32 nBytesToRead) = 0;
  26 };
  27
  28 /**
  29  * Interface that we can cast to, to bypass the inefficiency of using Sequence<sal_Int8>
  30  * when writing via XOutputStream.
  31  */
  32 class COMPHELPER_DLLPUBLIC SAL_LOPLUGIN_ANNOTATE("crosscast") ByteWriter
  33 {
  34 public:
  35     virtual ~ByteWriter();
  36     virtual void writeBytes(const sal_Int8* aData, sal_Int32 nBytesToWrite) = 0;
  37 };
  38
  39 } // namespace utl
  40
  41 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */