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C++ intrusive_ptr::setClosedSet方法代码示例

本文整理汇总了C++中intrusive_ptr::setClosedSet方法的典型用法代码示例。如果您正苦于以下问题:C++ intrusive_ptr::setClosedSet方法的具体用法?C++ intrusive_ptr::setClosedSet怎么用?C++ intrusive_ptr::setClosedSet使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在intrusive_ptr的用法示例。


在下文中一共展示了intrusive_ptr::setClosedSet方法的1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,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: manageDependencies

    void DocumentSourceProject::manageDependencies(
        const intrusive_ptr<DependencyTracker> &pTracker) {

        /*
          If the $project is in "inclusionary mode," then it produces
          a closed result set
        */
        if (!pEO->isExclusionMode())
            pTracker->setClosedSet();

        /*
          Look at all the products (inclusions and computed fields) of this
          projection.  For each one that is currently a dependency, remove it
          from the list of dependencies, because this product will satisfy that
          dependency.

          First look at the included paths
         */
        ExpressionObject::DependencyRemover dependencyRemover(pTracker);
        pEO->emitPaths(&dependencyRemover);

        /* the computed expressions are also products */
        intrusive_ptr<Iterator<string> > pFieldIter(pEO->getFieldIterator());
        while(pFieldIter->hasNext()) {
            string fieldName(pFieldIter->next());
            FieldPath fieldPath(fieldName);
            pTracker->removeDependency(fieldPath);
        }

        /*
          Look at the exclusions of this projection.  If any of them are
          dependencies, inform the user (error/usassert) that the dependency
          can't be satisfied.

          Note we need to do this after the product examination above because
          it is possible for there to be an exclusion field name that matches
          a new computed product field name.  The latter would satisfy the
          dependency.
         */
        DependencyChecker dependencyChecker(pTracker, this);
        pEO->emitPaths(&dependencyChecker);

        /*
          Look at the products of this projection.  For inclusions, add the
          field names to the list of dependencies.  For computed expressions,
          add their dependencies to the list of dependencies.
         */
        pEO->addDependencies(pTracker, this);
    }
开发者ID:cwestin,项目名称:mongo,代码行数:49,代码来源:document_source_project.cpp


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