Line data    Source code

       1             : /*
       2             :  * Copyright (c) 2014 Juniper Networks, Inc. All rights reserved.
       3             :  */
       4             : 
       5             : #ifndef __CONNECTION_INFO_H__
       6             : #define __CONNECTION_INFO_H__
       7             : 
       8             : #include <map>
       9             : #include <vector>
      10             : 
      11             : #include <boost/tuple/tuple.hpp>
      12             : #include <boost/asio/ip/tcp.hpp>
      13             : #include <boost/bind/bind.hpp>
      14             : #include <boost/assign/list_of.hpp>
      15             : #include <boost/scoped_ptr.hpp>
      16             : 
      17             : #include <base/feature_flags.h>
      18             : #include <base/sandesh/process_info_constants.h>
      19             : #include <base/sandesh/process_info_types.h>
      20             : #include <base/sandesh/cpuinfo_constants.h>
      21             : #include <base/sandesh/cpuinfo_types.h>
      22             : #include <base/sandesh/nodeinfo_constants.h>
      23             : #include <base/sandesh/nodeinfo_types.h>
      24             : 
      25             : using namespace boost::placeholders;
      26             : 
      27             : class ConnectionInfoTest;
      28             : 
      29             : namespace process {
      30             : 
      31             : typedef boost::asio::ip::tcp::endpoint Endpoint;
      32             : typedef boost::function<void (const std::vector<ConnectionInfo> &,
      33             :     ProcessState::type &, std::string &)> ProcessStateFn;
      34             : 
      35             : typedef std::pair<std::string, std::string> ConnectionTypeName;
      36             : void GetProcessStateCb(const std::vector<ConnectionInfo> &cinfos,
      37             :     ProcessState::type &state, std::string &message,
      38             :     const std::vector<ConnectionTypeName> &expected_connections);
      39             : void GetConnectionInfoMessage(const std::vector<ConnectionInfo> &cinfos,
      40             :     const std::vector<ConnectionTypeName> &expected_connections,
      41             :     std::string &message);
      42             : 
      43             : // ConnectionState
      44             : class ConnectionState {
      45             : public:
      46             :     static ConnectionState* GetInstance();
      47             :     void Update();
      48             :     void Update(ConnectionType::type ctype, const std::string &name,
      49             :         ConnectionStatus::type status, Endpoint server,
      50             :         std::string message);
      51             :     void Update(ConnectionType::type ctype, const std::string &name,
      52             :         ConnectionStatus::type status, const std::vector<Endpoint> &servers,
      53             :         std::string message);
      54             :     void Delete(ConnectionType::type ctype, const std::string &name);
      55             :     std::vector<ConnectionInfo> GetInfos() const;
      56             : 
      57             : private:
      58             :     void UpdateInternal(ConnectionType::type ctype,
      59             :         const std::string &name, ConnectionStatus::type status,
      60             :         const std::vector<Endpoint> &servers, std::string message);
      61             : 
      62             :     friend class
      63             :         ConnectionStateManager;
      64             : 
      65             :     typedef boost::tuple<ConnectionType::type, std::string> ConnectionInfoKey;
      66             :     typedef std::map<ConnectionInfoKey, ConnectionInfo> ConnectionInfoMap;
      67             :     typedef boost::function<void (void)> SendUveCb;
      68             : 
      69             :     std::vector<ConnectionInfo> GetInfosUnlocked() const;
      70             :     // Singleton
      71             :     ConnectionState(SendUveCb send_uve_cb);
      72             :     static void CreateInstance(SendUveCb send_uve_cb);
      73             : 
      74             :     static boost::scoped_ptr<ConnectionState> instance_;
      75             :     mutable std::mutex  mutex_;
      76             :     ConnectionInfoMap connection_map_;
      77             :     SendUveCb send_uve_cb_;
      78             : };
      79             : 
      80             : // ConnectionStateManager
      81             : class ConnectionStateManager {
      82             : public:
      83          96 :     static ConnectionStateManager* GetInstance() {
      84          96 :         if (instance_ == NULL) {
      85          48 :             instance_.reset(
      86          48 :                 new ConnectionStateManager());
      87             :             // Create ConnectionState instance and bind the send UVE function
      88          48 :             assert(ConnectionState::instance_ == NULL);
      89          48 :             ConnectionState::CreateInstance(boost::bind(
      90             :                 &ConnectionStateManager::
      91             :                     SendProcessStateUve, instance_.get(), false));
      92          48 :             FlagUveManager::CreateInstance(FlagManager::GetInstance(),
      93             :                 boost::bind(&ConnectionStateManager::
      94             :                     SendProcessStateUve, instance_.get(), false));
      95             :         }
      96          96 :         return instance_.get();
      97             :     }
      98             : 
      99          48 :     void Init(boost::asio::io_context &service, const std::string &hostname,
     100             :         const std::string &module, const std::string &instance_id,
     101             :         ProcessStateFn status_cb, std::string table) {
     102          48 :         data_.set_name(hostname);
     103          48 :         process_status_.set_module_id(module);
     104          48 :         process_status_.set_instance_id(instance_id);
     105          48 :         status_cb_ = status_cb;
     106          48 :         data_.table_ = table;
     107          48 :     }
     108             : 
     109          48 :     void Shutdown() {
     110          48 :     }
     111             : 
     112             : private:
     113             :     friend class ConnectionState;
     114             :     friend class FlagUveManager;
     115             :     friend class ::ConnectionInfoTest;
     116             : 
     117             :     // Singleton
     118          48 :     ConnectionStateManager() :
     119          48 :         status_cb_(NULL) {
     120          48 :     }
     121             : 
     122           3 :     void SetProcessStateCb(ProcessStateFn status_cb) {
     123           3 :         status_cb_ = status_cb;
     124           3 :     }
     125             : 
     126             :     // Convert flag_infos to sandesh type
     127             :     std::vector<FlagInfo> GetFlagInfos(const FlagConfigVec &flag_infos);
     128             : 
     129         453 :     bool SendProcessStateUve(bool lock) {
     130         453 :         if (status_cb_.empty()) {
     131           0 :             return false;
     132             :         }
     133             :         // Update
     134             :         // Add connection_info
     135         453 :         process_status_.set_connection_infos(lock ?
     136             :             ConnectionState::GetInstance()->GetInfos() :
     137             :             ConnectionState::GetInstance()->GetInfosUnlocked());
     138             :         // Add flag_info
     139         453 :         process_status_.set_flag_infos(GetFlagInfos(
     140         906 :             FlagUveManager::GetInstance()->GetFlagInfos(lock)));
     141             :         ProcessState::type pstate;
     142         453 :         std::string message;
     143         453 :         status_cb_(process_status_.get_connection_infos(), pstate, message);
     144         906 :         process_status_.set_state(g_process_info_constants.
     145         453 :             ProcessStateNames.find(pstate)->second);
     146         453 :         process_status_.set_description(message);
     147             :         // Send
     148             :         std::vector<ProcessStatus> vps = boost::assign::list_of
     149         453 :             (process_status_);
     150         453 :         data_.set_process_status(vps);
     151         453 :         NodeStatusUVE::Send(data_);
     152         453 :         return true;
     153         453 :     }
     154             : 
     155             :     static boost::scoped_ptr<ConnectionStateManager> instance_;
     156             : 
     157             :     ProcessStateFn status_cb_;
     158             :     ProcessStatus process_status_;
     159             :     NodeStatus data_;
     160             : };
     161             : 
     162             : } // namespace process
     163             : 
     164             : #endif // __CONNECTION_INFO_H__