LibXR::Topic::Domain Class Reference

主题域（Domain）管理器，用于组织多个主题。Domain manager for organizing multiple topics. More...

#include <message.hpp>

Collaboration diagram for LibXR::Topic::Domain:

Public Member Functions
	Domain (const char *name)
	构造函数，初始化或查找指定名称的主题域。Constructor initializing or looking up a domain by name.

Data Fields
RBTree< uint32_t >::Node< RBTree< uint32_t > > *	node_
	指向该域的根节点。Pointer to the root node of the domain.

Detailed Description

主题域（Domain）管理器，用于组织多个主题。Domain manager for organizing multiple topics.

Definition at line 132 of file message.hpp.

Constructor & Destructor Documentation

Domain()

LibXR::Topic::Domain::Domain ( const char *  name )

inline

构造函数，初始化或查找指定名称的主题域。Constructor initializing or looking up a domain by name.

Parameters

name	主题域的名称。Name of the domain.

Definition at line 140 of file message.hpp.

    {
      if (!domain_)
      {
        domain_lock_.Lock();
        if (!domain_)
        {
          domain_ =
              new RBTree<uint32_t>([](const uint32_t &a, const uint32_t &b)
                                   { return static_cast<int>(a) - static_cast<int>(b); });
        }
        domain_lock_.Unlock();
      }
 
      auto crc32 = CRC32::Calculate(name, strlen(name));
 
      auto domain = domain_->Search<RBTree<uint32_t>>(crc32);
 
      if (domain != nullptr)
      {
        node_ = domain;
        return;
      }
 
      node_ = new LibXR::RBTree<uint32_t>::Node<LibXR::RBTree<uint32_t>>(
          [](const uint32_t &a, const uint32_t &b)
          { return static_cast<int>(a) - static_cast<int>(b); });
 
      domain_->Insert(*node_, crc32);
    }

Field Documentation

node_

RBTree<uint32_t>::Node<RBTree<uint32_t> >* LibXR::Topic::Domain::node_

指向该域的根节点。Pointer to the root node of the domain.

Definition at line 174 of file message.hpp.

---

The documentation for this class was generated from the following file:

• src/middleware/message.hpp