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Code Issues Releases Activity

some modernization of CFileInputStream implementation code

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This commit is contained in:
Zyx-2000
2016-01-12 23:40:24 +01:00
parent f9b255c896
commit 933b7c1f5e
4 changed files with 14 additions and 41 deletions
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28
lib/filesystem/CFileInputStream.cpp
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@@ -4,39 +4,25 @@
#include "CFileInfo.h"
CFileInputStream::CFileInputStream(const boost::filesystem::path & file, si64 start, si64 size)
: dataStart{start},
dataSize{size},
fileStream{file, std::ios::in | std::ios::binary}
{
open(file, start, size);
}
CFileInputStream::CFileInputStream(const CFileInfo & file, si64 start, si64 size)
{
open(file.getName(), start, size);
}
CFileInputStream::~CFileInputStream()
{
fileStream.close();
}
void CFileInputStream::open(const boost::filesystem::path & file, si64 start, si64 size)
{
fileStream.open(file, std::ios::in | std::ios::binary);
if (fileStream.fail())
throw std::runtime_error("File " + file.string() + " isn't available.");
dataStart = start;
dataSize = size;
if (dataSize == 0)
{
fileStream.seekg(0, std::ios::end);
dataSize = tell();
}
fileStream.seekg(start, std::ios::beg);
fileStream.seekg(dataStart, std::ios::beg);
}
CFileInputStream::CFileInputStream(const CFileInfo & file, si64 start, si64 size)
: CFileInputStream{file.getName(), start, size} {}
si64 CFileInputStream::read(ui8 * data, si64 size)
{
si64 origin = tell();