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130 lines
3.7 KiB
C++
130 lines
3.7 KiB
C++
/* -------------------------------------------------------------------------- */
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/* Copyright 2002-2020, OpenNebula Project, OpenNebula Systems */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
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/* not use this file except in compliance with the License. You may obtain */
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/* a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
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/* See the License for the specific language governing permissions and */
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/* limitations under the License. */
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/* -------------------------------------------------------------------------- */
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#ifndef INFORMATION_MANAGER_H_
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#define INFORMATION_MANAGER_H_
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#include "DriverManager.h"
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#include "Listener.h"
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#include "ProtocolMessages.h"
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#include "RaftManager.h"
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class HostPool;
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class Host;
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class VirtualMachinePool;
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class InformationManager : public DriverManager<Driver<im_msg_t>>
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{
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public:
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InformationManager(
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HostPool * _hpool,
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VirtualMachinePool * _vmpool,
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const std::string& mad_location)
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: DriverManager(mad_location)
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, hpool(_hpool)
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, vmpool(_vmpool)
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{
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}
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~InformationManager() = default;
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/**
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* This functions starts the associated listener thread, and creates a
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* new thread for the Information Manager. This thread will wait in
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* an action loop till it receives ACTION_FINALIZE.
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* @return 0 on success.
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*/
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int start();
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void finalize()
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{
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stop(drivers_timeout);
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};
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/**
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* Sends a STOPMONITR command to the associated driver and host
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* @param hid the host id
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* @param name of the host
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* @param im_mad the driver name
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*/
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void stop_monitor(int hid,
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const std::string& name,
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const std::string& im_mad);
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/**
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* Starts the monitor process on the host
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* @param host to monitor
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* @param update_remotes to copy the monitor probes to the host
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* @return 0 on success
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*/
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int start_monitor(Host * host, bool update_remotes);
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/**
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* Send host info to monitor
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*/
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void update_host(Host *host);
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/**
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* Send host delete message to monitor
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*/
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void delete_host(int hid);
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/**
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* Set raft status, send info to monitor daemon
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*/
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void raft_status(RaftManager::State raft);
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protected:
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/**
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* Received undefined message -> print error
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*/
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static void _undefined(std::unique_ptr<im_msg_t> msg);
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/**
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* Message HOST_STATE update from monitor
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*/
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void _host_state(std::unique_ptr<im_msg_t> msg);
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/**
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* Message HOST_SYSTEM update from monitor
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*/
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void _host_system(std::unique_ptr<im_msg_t> msg);
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/**
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* Message VM_STATE from monitor
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*/
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void _vm_state(std::unique_ptr<im_msg_t> msg);
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private:
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/**
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* Pointer to the Host Pool
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*/
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HostPool * hpool;
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/**
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* Pointer to the Host Pool
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*/
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VirtualMachinePool * vmpool;
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/**
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* Default timeout to wait for Information Driver (monitord)
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*/
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static const int drivers_timeout = 10;
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};
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#endif /*INFORMATION_MANAGER_H_*/
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