C++ CFile::Read方法代码示例

TEST_F(TestZipFile, Read)
{
  XFILE::CFile file;
  char buf[20];
  memset(&buf, 0, sizeof(buf));
  std::string reffile, strpathinzip;
  CFileItemList itemlist;

  reffile = XBMC_REF_FILE_PATH("xbmc/filesystem/test/reffile.txt.zip");
  CURL zipUrl = URIUtils::CreateArchivePath("zip", CURL(reffile), "");
  ASSERT_TRUE(XFILE::CDirectory::GetDirectory(zipUrl, itemlist, "",
    XFILE::DIR_FLAG_NO_FILE_DIRS));
  EXPECT_GT(itemlist.Size(), 0);
  EXPECT_FALSE(itemlist[0]->GetPath().empty());
  strpathinzip = itemlist[0]->GetPath();
  ASSERT_TRUE(file.Open(strpathinzip));
  EXPECT_EQ(0, file.GetPosition());
  EXPECT_EQ(1616, file.GetLength());
  EXPECT_EQ(sizeof(buf), static_cast<size_t>(file.Read(buf, sizeof(buf))));
  file.Flush();
  EXPECT_EQ(20, file.GetPosition());
  EXPECT_TRUE(!memcmp("About\n-----\nXBMC is ", buf, sizeof(buf) - 1));
  EXPECT_TRUE(file.ReadString(buf, sizeof(buf)));
  EXPECT_EQ(39, file.GetPosition());
  EXPECT_STREQ("an award-winning fr", buf);
  EXPECT_EQ(100, file.Seek(100));
  EXPECT_EQ(100, file.GetPosition());
  EXPECT_EQ(sizeof(buf), static_cast<size_t>(file.Read(buf, sizeof(buf))));
  file.Flush();
  EXPECT_EQ(120, file.GetPosition());
  EXPECT_TRUE(!memcmp("ent hub for digital ", buf, sizeof(buf) - 1));
  EXPECT_EQ(220, file.Seek(100, SEEK_CUR));
  EXPECT_EQ(220, file.GetPosition());
  EXPECT_EQ(sizeof(buf), static_cast<size_t>(file.Read(buf, sizeof(buf))));
  file.Flush();
  EXPECT_EQ(240, file.GetPosition());
  EXPECT_TRUE(!memcmp("rs, XBMC is a non-pr", buf, sizeof(buf) - 1));
  EXPECT_EQ(1596, file.Seek(-(int64_t)sizeof(buf), SEEK_END));
  EXPECT_EQ(1596, file.GetPosition());
  EXPECT_EQ(sizeof(buf), static_cast<size_t>(file.Read(buf, sizeof(buf))));
  file.Flush();
  EXPECT_EQ(1616, file.GetPosition());
  EXPECT_TRUE(!memcmp("multimedia jukebox.\n", buf, sizeof(buf) - 1));
  EXPECT_EQ(-1, file.Seek(100, SEEK_CUR));
  EXPECT_EQ(1616, file.GetPosition());
  EXPECT_EQ(0, file.Seek(0, SEEK_SET));
  EXPECT_EQ(sizeof(buf), static_cast<size_t>(file.Read(buf, sizeof(buf))));
  file.Flush();
  EXPECT_EQ(20, file.GetPosition());
  EXPECT_TRUE(!memcmp("About\n-----\nXBMC is ", buf, sizeof(buf) - 1));
  EXPECT_EQ(0, file.Seek(0, SEEK_SET));
  EXPECT_EQ(-1, file.Seek(-100, SEEK_SET));
  file.Close();
}

TEST(TestRarFile, Read)
{
  XFILE::CFile file;
  char buf[20];
  memset(&buf, 0, sizeof(buf));
  CStdString reffile, strrarpath, strpathinrar;
  CFileItemList itemlist;

  reffile = XBMC_REF_FILE_PATH("xbmc/filesystem/test/reffile.txt.rar");
  URIUtils::CreateArchivePath(strrarpath, "rar", reffile, "");
  ASSERT_TRUE(XFILE::CDirectory::GetDirectory(strrarpath, itemlist, "",
    XFILE::DIR_FLAG_NO_FILE_DIRS));
  strpathinrar = itemlist[0]->GetPath();
  ASSERT_TRUE(file.Open(strpathinrar));
  EXPECT_EQ(0, file.GetPosition());
  EXPECT_EQ(1616, file.GetLength());
  EXPECT_EQ(sizeof(buf), file.Read(buf, sizeof(buf)));
  file.Flush();
  EXPECT_EQ(20, file.GetPosition());
  EXPECT_TRUE(!memcmp("About\n-----\nXBMC is ", buf, sizeof(buf) - 1));
  EXPECT_TRUE(file.ReadString(buf, sizeof(buf)));
  EXPECT_EQ(39, file.GetPosition());
  EXPECT_STREQ("an award-winning fr", buf);
  EXPECT_EQ(100, file.Seek(100));
  EXPECT_EQ(100, file.GetPosition());
  EXPECT_EQ(sizeof(buf), file.Read(buf, sizeof(buf)));
  file.Flush();
  EXPECT_EQ(120, file.GetPosition());
  EXPECT_TRUE(!memcmp("ent hub for digital ", buf, sizeof(buf) - 1));
  EXPECT_EQ(220, file.Seek(100, SEEK_CUR));
  EXPECT_EQ(220, file.GetPosition());
  EXPECT_EQ(sizeof(buf), file.Read(buf, sizeof(buf)));
  file.Flush();
  EXPECT_EQ(240, file.GetPosition());
  EXPECT_TRUE(!memcmp("rs, XBMC is a non-pr", buf, sizeof(buf) - 1));
  EXPECT_EQ(1596, file.Seek(-(int64_t)sizeof(buf), SEEK_END));
  EXPECT_EQ(1596, file.GetPosition());
  EXPECT_EQ(sizeof(buf), file.Read(buf, sizeof(buf)));
  file.Flush();
  EXPECT_EQ(1616, file.GetPosition());
  EXPECT_TRUE(!memcmp("multimedia jukebox.\n", buf, sizeof(buf) - 1));
  EXPECT_EQ(1716, file.Seek(100, SEEK_CUR));
  EXPECT_EQ(1716, file.GetPosition());
  EXPECT_EQ(0, file.Seek(0, SEEK_SET));
  EXPECT_EQ(sizeof(buf), file.Read(buf, sizeof(buf)));
  file.Flush();
  EXPECT_EQ(20, file.GetPosition());
  EXPECT_TRUE(!memcmp("About\n-----\nXBMC is ", buf, sizeof(buf) - 1));
  EXPECT_EQ(0, file.Seek(0, SEEK_SET));
  EXPECT_EQ(-1, file.Seek(-100, SEEK_SET));
  file.Close();
}

HRESULT CD3DEffect::Open(D3D_INCLUDE_TYPE IncludeType, LPCSTR pFileName, LPCVOID pParentData, LPCVOID* ppData, UINT* pBytes)
{
  XFILE::CFile includeFile;

  std::string fileName("special://xbmc/system/shaders/");
  fileName.append(pFileName);

  if (!includeFile.Open(fileName))
  {
    CLog::Log(LOGERROR, "%s: Could not open 3DLUT file: %s", __FUNCTION__, fileName.c_str());
    return E_FAIL;
  }

  int64_t length = includeFile.GetLength();
  void *pData = malloc(length);
  if (includeFile.Read(pData, length) != length)
  {
    free(pData);
    return E_FAIL;
  }
  *ppData = pData;
  *pBytes = length;

  return S_OK;
}

bool CJpegIO::Open(const CStdString &texturePath, unsigned int minx, unsigned int miny, bool read)
{
  m_texturePath = texturePath;
  unsigned int imgsize = 0;

  XFILE::CFile file;
  if (file.Open(m_texturePath.c_str(), 0))
  {
    imgsize = (unsigned int)file.GetLength();
    m_inputBuff = new unsigned char[imgsize];
    m_inputBuffSize = file.Read(m_inputBuff, imgsize);
    file.Close();

    if ((imgsize != m_inputBuffSize) || (m_inputBuffSize == 0))
      return false;
  }
  else
    return false;

  if (!read)
    return true;

  if (Read(m_inputBuff, m_inputBuffSize, minx, miny))
    return true;
  return false;
}

TEST(TestFile, Write)
{
  XFILE::CFile *file;
  const char str[] = "TestFile.Write test string\n";
  char buf[30];
  memset(&buf, 0, sizeof(buf));

  ASSERT_TRUE((file = XBMC_CREATETEMPFILE("")) != NULL);
  file->Close();
  ASSERT_TRUE(file->OpenForWrite(XBMC_TEMPFILEPATH(file), true));
  EXPECT_EQ((int)sizeof(str), file->Write(str, sizeof(str)));
  file->Flush();
  EXPECT_EQ(0, file->GetPosition());
  file->Close();
  ASSERT_TRUE(file->Open(XBMC_TEMPFILEPATH(file)));
  EXPECT_EQ(0, file->GetPosition());
  EXPECT_EQ((int64_t)sizeof(str), file->Seek(0, SEEK_END));
  EXPECT_EQ(0, file->Seek(0, SEEK_SET));
  EXPECT_EQ((int64_t)sizeof(str), file->GetLength());
  EXPECT_EQ(sizeof(str), file->Read(buf, sizeof(buf)));
  file->Flush();
  EXPECT_EQ((int64_t)sizeof(str), file->GetPosition());
  EXPECT_TRUE(!memcmp(str, buf, sizeof(str)));
  file->Close();
  EXPECT_TRUE(XBMC_DELETETEMPFILE(file));
}

int CNfoFile::Load(const CStdString& strFile)
{
  Close();
  XFILE::CFile file;
  if (file.Open(strFile))
  {
    m_size = (int)file.GetLength();
    try
    {
      m_doc = new char[m_size+1];
      m_headofdoc = m_doc;
    }
    catch (...)
    {
      CLog::Log(LOGERROR, "%s: Exception while creating file buffer",__FUNCTION__);
      return 1;
    }
    if (!m_doc)
    {
      file.Close();
      return 1;
    }
    file.Read(m_doc, m_size);
    m_doc[m_size] = 0;
    file.Close();
    return 0;
  }
  return 1;
}

TEST_F(TestRegExpLog, DumpOvector)
{
  CRegExp regex;
  CStdString logfile, logstring;
  char buf[100];
  unsigned int bytesread;
  XFILE::CFile file;

  logfile = CSpecialProtocol::TranslatePath("special://temp/") + "xbmc.log";
  EXPECT_TRUE(CLog::Init(CSpecialProtocol::TranslatePath("special://temp/")));
  EXPECT_TRUE(XFILE::CFile::Exists(logfile));

  EXPECT_TRUE(regex.RegComp("^(?<first>Test)\\s*(?<second>.*)\\."));
  EXPECT_EQ(0, regex.RegFind("Test string."));
  regex.DumpOvector(LOGDEBUG);
  CLog::Close();

  EXPECT_TRUE(file.Open(logfile));
  while ((bytesread = file.Read(buf, sizeof(buf) - 1)) > 0)
  {
    buf[bytesread] = '\0';
    logstring.append(buf);
  }
  file.Close();
  EXPECT_FALSE(logstring.empty());

  EXPECT_STREQ("\xEF\xBB\xBF", logstring.substr(0, 3).c_str());

  EXPECT_TRUE(regex.RegComp(".*DEBUG: regexp ovector=\\{\\[0,12\\],\\[0,4\\],"
                            "\\[5,11\\]\\}.*"));
  EXPECT_GE(regex.RegFind(logstring), 0);

  EXPECT_TRUE(XFILE::CFile::Delete(logfile));
}

bool CScraperUrl::Get(const SUrlEntry& scrURL, string& strHTML, CHTTP& http)
{
    CURL url(scrURL.m_url);
    http.SetReferer(scrURL.m_spoof);
    CStdString strCachePath;

    if (!scrURL.m_cache.IsEmpty())
    {
        CUtil::AddFileToFolder(g_advancedSettings.m_cachePath,"scrapers\\"+scrURL.m_cache,strCachePath);
        if (XFILE::CFile::Exists(strCachePath))
        {
            XFILE::CFile file;
            file.Open(strCachePath);
            char* temp = new char[(int)file.GetLength()];
            file.Read(temp,file.GetLength());
            strHTML.append(temp,temp+file.GetLength());
            file.Close();
            delete[] temp;
            return true;
        }
    }

    if (scrURL.m_post)
    {
        CStdString strOptions = url.GetOptions();
        strOptions = strOptions.substr(1);
        url.SetOptions("");
        CStdString strUrl;
        url.GetURL(strUrl);

        if (!http.Post(strUrl, strOptions, strHTML))
            return false;
    }
    else if (!http.Get(scrURL.m_url, strHTML))
        return false;

    if (scrURL.m_url.Find(".zip") > -1)
    {
        XFILE::CFileZip file;
        CStdString strBuffer;
        int iSize = file.UnpackFromMemory(strBuffer,strHTML);
        if (iSize)
        {
            strHTML.clear();
            strHTML.append(strBuffer.c_str(),strBuffer.data()+iSize);
        }
    }

    if (!scrURL.m_cache.IsEmpty())
    {
        CStdString strCachePath;
        CUtil::AddFileToFolder(g_advancedSettings.m_cachePath,"scrapers\\"+scrURL.m_cache,strCachePath);
        XFILE::CFile file;
        if (file.OpenForWrite(strCachePath,true,true))
            file.Write(strHTML.data(),strHTML.size());
        file.Close();
    }
    return true;
}

static int dvd_file_read(void *h, uint8_t* buf, int size)
{
  if(interrupt_cb(NULL))
    return -1;

  XFILE::CFile *pFile = (XFILE::CFile *)h;
  return pFile->Read(buf, size);
}

//========================================================================
int CFileURLProtocol::Read(AML_URLContext *h, unsigned char *buf, int size)
{
  XFILE::CFile *cfile = (XFILE::CFile*)h->priv_data;

  int readsize = cfile->Read(buf, size);
  //CLog::Log(LOGDEBUG, "CFileURLProtocol::Read size(%d), readsize(%d)", size, readsize);

  return readsize;
}

TEST_F(Testlog, Log)
{
    std::string logfile, logstring;
    char buf[100];
    unsigned int bytesread;
    XFILE::CFile file;
    CRegExp regex;

    std::string appName = CCompileInfo::GetAppName();
    StringUtils::ToLower(appName);
    logfile = CSpecialProtocol::TranslatePath("special://temp/") + appName + ".log";
    EXPECT_TRUE(CLog::Init(CSpecialProtocol::TranslatePath("special://temp/").c_str()));
    EXPECT_TRUE(XFILE::CFile::Exists(logfile));

    CLog::Log(LOGDEBUG, "debug log message");
    CLog::Log(LOGINFO, "info log message");
    CLog::Log(LOGNOTICE, "notice log message");
    CLog::Log(LOGWARNING, "warning log message");
    CLog::Log(LOGERROR, "error log message");
    CLog::Log(LOGSEVERE, "severe log message");
    CLog::Log(LOGFATAL, "fatal log message");
    CLog::Log(LOGNONE, "none type log message");
    CLog::Close();

    EXPECT_TRUE(file.Open(logfile));
    while ((bytesread = file.Read(buf, sizeof(buf) - 1)) > 0)
    {
        buf[bytesread] = '\0';
        logstring.append(buf);
    }
    file.Close();
    EXPECT_FALSE(logstring.empty());

    EXPECT_STREQ("\xEF\xBB\xBF", logstring.substr(0, 3).c_str());

    EXPECT_TRUE(regex.RegComp(".*DEBUG: debug log message.*"));
    EXPECT_GE(regex.RegFind(logstring), 0);
    EXPECT_TRUE(regex.RegComp(".*INFO: info log message.*"));
    EXPECT_GE(regex.RegFind(logstring), 0);
    EXPECT_TRUE(regex.RegComp(".*NOTICE: notice log message.*"));
    EXPECT_GE(regex.RegFind(logstring), 0);
    EXPECT_TRUE(regex.RegComp(".*WARNING: warning log message.*"));
    EXPECT_GE(regex.RegFind(logstring), 0);
    EXPECT_TRUE(regex.RegComp(".*ERROR: error log message.*"));
    EXPECT_GE(regex.RegFind(logstring), 0);
    EXPECT_TRUE(regex.RegComp(".*SEVERE: severe log message.*"));
    EXPECT_GE(regex.RegFind(logstring), 0);
    EXPECT_TRUE(regex.RegComp(".*FATAL: fatal log message.*"));
    EXPECT_GE(regex.RegFind(logstring), 0);
    EXPECT_TRUE(regex.RegComp(".*NONE: none type log message.*"));
    EXPECT_GE(regex.RegFind(logstring), 0);

    EXPECT_TRUE(XFILE::CFile::Delete(logfile));
}

/* The tests for XFILE::CFileFactory are tested indirectly through
 * XFILE::CFile. Since most parts of the VFS require some form of
 * network connection, the settings and VFS URLs must be given as
 * arguments in the main testsuite program.
 */
TEST_F(TestFileFactory, Read)
{
  XFILE::CFile file;
  std::string str;
  unsigned int size, i;
  unsigned char buf[16];
  int64_t count = 0;

  std::vector<std::string> urls =
    CXBMCTestUtils::Instance().getTestFileFactoryReadUrls();

  std::vector<std::string>::iterator it;
  for (it = urls.begin(); it < urls.end(); ++it)
  {
    std::cout << "Testing URL: " << *it << std::endl;
    ASSERT_TRUE(file.Open(*it));
    std::cout << "file.GetLength(): " <<
      testing::PrintToString(file.GetLength()) << std::endl;
    std::cout << "file.Seek(file.GetLength() / 2, SEEK_CUR) return value: " <<
      testing::PrintToString(file.Seek(file.GetLength() / 2, SEEK_CUR)) << std::endl;
    std::cout << "file.Seek(0, SEEK_END) return value: " <<
      testing::PrintToString(file.Seek(0, SEEK_END)) << std::endl;
    std::cout << "file.Seek(0, SEEK_SET) return value: " <<
      testing::PrintToString(file.Seek(0, SEEK_SET)) << std::endl;
    std::cout << "File contents:" << std::endl;
    while ((size = file.Read(buf, sizeof(buf))) > 0)
    {
      str = StringUtils::Format("  %08llX", count);
      std::cout << str << "  ";
      count += size;
      for (i = 0; i < size; i++)
      {
        str = StringUtils::Format("%02X ", buf[i]);
        std::cout << str;
      }
      while (i++ < sizeof(buf))
        std::cout << "   ";
      std::cout << " [";
      for (i = 0; i < size; i++)
      {
        if (buf[i] >= ' ' && buf[i] <= '~')
          std::cout << buf[i];
        else
          std::cout << ".";
      }
      std::cout << "]" << std::endl;
    }
    file.Close();
  }
}

bool CFileCurl::ReadFile(const CStdString &fileName, CStdString &out)
{
  XFILE::CFile file;
  if (file.Open(fileName))
  {
    char buffer[16384];
    unsigned int size_read; 
    while( (size_read = file.Read(buffer, sizeof(buffer)) ) > 0 )
      out.append(buffer, size_read);
    file.Close();
    return true;
  }
  return false;
}

bool CGUIPythonWindowXML::LoadXML(const CStdString &strPath, const CStdString &strLowerPath)
{
  // load our window
  XFILE::CFile file;
  if (!file.Open(strPath) && !file.Open(CStdString(strPath).ToLower()) && !file.Open(strLowerPath))
  {
    // fail - can't load the file
    CLog::Log(LOGERROR, "%s: Unable to load skin file %s", __FUNCTION__, strPath.c_str());
    return false;
  }
  // load the strings in
  unsigned int offset = LoadScriptStrings();

  CStdString xml;
  char *buffer = new char[(unsigned int)file.GetLength()+1];
  if(buffer == NULL)
    return false;
  int size = file.Read(buffer, file.GetLength());
  if (size > 0)
  {
    buffer[size] = 0;
    xml = buffer;
    if (offset)
    {
      // replace the occurences of SCRIPT### with offset+###
      // not particularly efficient, but it works
      int pos = xml.Find("SCRIPT");
      while (pos != (int)CStdString::npos)
      {
        CStdString num = xml.Mid(pos + 6, 4);
        int number = atol(num.c_str());
        CStdString oldNumber, newNumber;
        oldNumber.Format("SCRIPT%d", number);
        newNumber.Format("%lu", offset + number);
        xml.Replace(oldNumber, newNumber);
        pos = xml.Find("SCRIPT", pos + 6);
      }
    }
  }
  delete[] buffer;

  TiXmlDocument xmlDoc;
  xmlDoc.Parse(xml.c_str());

  if (xmlDoc.Error())
    return false;

  return Load(xmlDoc);
}

bool CPODocument::LoadFile(const std::string &pofilename)
{
  XFILE::CFile file;
  if (!file.Open(pofilename))
    return false;

  int64_t fileLength = file.GetLength();
  if (fileLength < 18) // at least a size of a minimalistic header
  {
    file.Close();
    CLog::Log(LOGERROR, "POParser: non valid length found for string file: %s", pofilename.c_str());
    return false;
  }

  m_POfilelength = static_cast<size_t> (fileLength);

  m_strBuffer.resize(m_POfilelength+1);
  m_strBuffer[0] = '\n';

  unsigned int readBytes = file.Read(&m_strBuffer[1], m_POfilelength);
  file.Close();

  if (readBytes != m_POfilelength)
  {
    CLog::Log(LOGERROR, "POParser: actual read data differs from file size, for string file: %s",
              pofilename.c_str());
    return false;
  }

  ConvertLineEnds(pofilename);

  // we make sure, to have an LF at the end of buffer
  if (*m_strBuffer.rbegin() != '\n')
  {
    m_strBuffer += "\n";
  }

  m_POfilelength = m_strBuffer.size();

  if (GetNextEntry() && m_Entry.Type == MSGID_FOUND)
    return true;

  CLog::Log(LOGERROR, "POParser: unable to read PO file header from file: %s", pofilename.c_str());
  return false;
}