BmnFileReaderRaw.cxx

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// headers from this target
#include "BmnFileReaderRaw.h"
 
// o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o
// ================== BmnFileReaderZstd public methods ==================
// o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o
 
BmnFileReaderRaw::BmnFileReaderRaw(const std::string& fileName)
    : BmnIFileReader(BmnFileType::Raw, fileName)
    , fInputStream()
    , fNextByteToRead(0ll)
{}
 
BmnFileReaderRaw::BmnFileReaderRaw(std::string&& fileName)
    : BmnIFileReader(BmnFileType::Raw, std::move(fileName))
    , fInputStream()
    , fNextByteToRead(0ll)
{}
 
BmnFileReaderRaw::BmnFileReaderRaw(const std::filesystem::path& filePath)
    : BmnIFileReader(BmnFileType::Raw, filePath)
    , fInputStream()
    , fNextByteToRead(0ll)
{}
 
BmnFileReaderRaw::BmnFileReaderRaw(std::filesystem::path&& filePath)
    : BmnIFileReader(BmnFileType::Raw, std::move(filePath))
    , fInputStream()
    , fNextByteToRead(0ll)
{}
 
// ========== BmnIFileReaderInterface ==========
 
void BmnFileReaderRaw::Open(const BmnBinaryFileProcessingOptions processingFlags)
{
    if (fInputStream.is_open()) {
        LOG(error) << "Before opening a new stream with `BmnFileReaderRaw::Open`, close the old one!\n";
        return;
    }
    if (!PerformStandardChecksBeforeOpening(processingFlags))
        return;
    fInputStream.open(fFilePath, std::ios::in | std::ios::binary);
}
 
void BmnFileReaderRaw::Close() noexcept
{
    fInputStream.close();
    fNextByteToRead = 0ll;
}
 
int64_t BmnFileReaderRaw::Read(void* dataToFill, const int64_t sizeToFill)
{
    fInputStream.read((char*)dataToFill, sizeToFill);
    int64_t noOfReadBytes = fInputStream.gcount();
    fNextByteToRead += noOfReadBytes;
    return noOfReadBytes;
}
 
int64_t BmnFileReaderRaw::Tell() const noexcept
{
    return fNextByteToRead;
}
 
void BmnFileReaderRaw::Seek(int64_t value)
{
    if (fInputStream.bad())
        return;
    fInputStream.seekg(value);
    if (fInputStream.good())
        fNextByteToRead = value;
}
 
bool BmnFileReaderRaw::IsGood() const noexcept
{
    return fInputStream.good();
}
 
bool BmnFileReaderRaw::IsEOF() const noexcept
{
    return fInputStream.eof();
}
 
void BmnFileReaderRaw::ClearStateFlags()
{
    fInputStream.clear();
}
 
bool BmnFileReaderRaw::IsOpen() const noexcept
{
    return fInputStream.is_open();
}