C++ fetcherinfo::Item类代码示例

OStack程序员社区-中国程序员成长平台 › 门户 › 编程› C++›C++教程

原作者: [db:作者] 来自: [db:来源] 收藏邀请

本文整理汇总了C++中fetcherinfo::Item类的典型用法代码示例。如果您正苦于以下问题：C++ Item类的具体用法？C++ Item怎么用？C++ Item使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Item类的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: Error

// Returns the resulting file or in case of extraction the destination
// directory (for logging).
static Try<string> fetchFromCache(
    const FetcherInfo::Item& item,
    const string& cacheDirectory,
    const string& sandboxDirectory)
{
  LOG(INFO) << "Fetching from cache";

  if (item.uri().has_output_file()) {
    string dirname = Path(item.uri().output_file()).dirname();
    if (dirname != ".") {
      Try<Nothing> result =
        os::mkdir(path::join(sandboxDirectory, dirname), true);

      if (result.isError()) {
        return Error(
          "Unable to create subdirectory " + dirname + "in sandbox");
      }
    }
  }

  Try<string> outputFile = item.uri().has_output_file()
    ? item.uri().output_file()
    : Fetcher::basename(item.uri().value());

  if (outputFile.isError()) {
    return Error(outputFile.error());
  }

  string destinationPath = path::join(sandboxDirectory, outputFile.get());

  // Non-empty cache filename is guaranteed by the callers of this function.
  CHECK(!item.cache_filename().empty());

  string sourcePath = path::join(cacheDirectory, item.cache_filename());

  if (item.uri().executable()) {
    Try<string> copied = copyFile(sourcePath, destinationPath);
    if (copied.isError()) {
      return Error(copied.error());
    }

    return chmodExecutable(copied.get());
  } else if (item.uri().extract()) {
    Try<bool> extracted = extract(sourcePath, sandboxDirectory);
    if (extracted.isError()) {
      return Error(extracted.error());
    } else if (extracted.get()) {
      return sandboxDirectory;
    } else {
      LOG(WARNING) << "Copying instead of extracting resource from URI with "
                   << "'extract' flag, because it does not seem to be an "
                   << "archive: " << item.uri().value();
    }
  }

  return copyFile(sourcePath, destinationPath);
}

开发者ID:BonnieTang，项目名称:mesos，代码行数:59，代码来源:fetcher.cpp

示例2: fetchBypassingCache

// Returns the resulting file or in case of extraction the destination
// directory (for logging).
static Try<string> fetch(
    const FetcherInfo::Item& item,
    const Option<string>& cacheDirectory,
    const string& sandboxDirectory,
    const Option<string>& frameworksHome)
{
  LOG(INFO) << "Fetching URI '" << item.uri().value() << "'";

  if (item.action() == FetcherInfo::Item::BYPASS_CACHE) {
    return fetchBypassingCache(
        item.uri(),
        sandboxDirectory,
        frameworksHome);
  }

  return fetchThroughCache(
      item,
      cacheDirectory,
      sandboxDirectory,
      frameworksHome);
}

开发者ID:BonnieTang，项目名称:mesos，代码行数:23，代码来源:fetcher.cpp

示例3: Error

// Returns the resulting file or in case of extraction the destination
// directory (for logging).
static Try<string> fetchFromCache(
    const FetcherInfo::Item& item,
    const string& cacheDirectory,
    const string& sandboxDirectory)
{
  LOG(INFO) << "Fetching from cache";

  Try<string> basename = Fetcher::basename(item.uri().value());
  if (basename.isError()) {
    return Error(basename.error());
  }

  string destinationPath = path::join(sandboxDirectory, basename.get());

  string sourcePath = path::join(cacheDirectory, item.cache_filename());

  if (item.uri().executable()) {
    Try<string> copied = copyFile(sourcePath, destinationPath);
    if (copied.isError()) {
      return Error(copied.error());
    }

    return chmodExecutable(copied.get());
  } else if (item.uri().extract()) {
    Try<bool> extracted = extract(sourcePath, sandboxDirectory);
    if (extracted.isError()) {
      return Error(extracted.error());
    } else if (extracted.get()) {
      return sandboxDirectory;
    } else {
      LOG(WARNING) << "Copying instead of extracting resource from URI with "
                   << "'extract' flag, because it does not seem to be an "
                   << "archive: " << item.uri().value();
    }
  }

  return copyFile(sourcePath, destinationPath);
}

开发者ID:fin09pcap，项目名称:mesos，代码行数:40，代码来源:fetcher.cpp

注：本文中的fetcherinfo::Item类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。