mirror of
https://github.com/kasmtech/KasmVNC.git
synced 2024-12-11 01:10:38 +01:00
92c7695981
Most streams are backed by a memory buffer. Create common base classes for this functionality to avoid code duplication.
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
|
|
* Copyright (C) 2013 D. R. Commander. All Rights Reserved.
|
|
* Copyright 2015 Pierre Ossman for Cendio AB
|
|
*
|
|
* This is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This software is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this software; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
|
|
* USA.
|
|
*/
|
|
|
|
#include <errno.h>
|
|
|
|
#include <rdr/Exception.h>
|
|
#include <rdr/FileInStream.h>
|
|
|
|
using namespace rdr;
|
|
|
|
FileInStream::FileInStream(const char *fileName)
|
|
{
|
|
file = fopen(fileName, "rb");
|
|
if (!file)
|
|
throw SystemException("fopen", errno);
|
|
}
|
|
|
|
FileInStream::~FileInStream(void) {
|
|
if (file) {
|
|
fclose(file);
|
|
file = NULL;
|
|
}
|
|
}
|
|
|
|
bool FileInStream::fillBuffer(size_t maxSize, bool wait)
|
|
{
|
|
size_t n = fread((U8 *)end, 1, maxSize, file);
|
|
if (n == 0) {
|
|
if (ferror(file))
|
|
throw SystemException("fread", errno);
|
|
if (feof(file))
|
|
throw EndOfStream();
|
|
return false;
|
|
}
|
|
end += n;
|
|
|
|
return true;
|
|
}
|