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/**
* \file request_watchdog.h
* \brief RequestWatchdog class header file.
*
* Copyright (c) 2013, Ford Motor Company
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following
* disclaimer in the documentation and/or other materials provided with the
* distribution.
*
* Neither the name of the Ford Motor Company nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef SRC_COMPONENTS_REQUEST_WATCHDOG_INCLUDE_REQUEST_WATCHDOG_REQUEST_WATCHDOG_H_
#define SRC_COMPONENTS_REQUEST_WATCHDOG_INCLUDE_REQUEST_WATCHDOG_REQUEST_WATCHDOG_H_
#include <list>
#include <map>
#include "request_watchdog/watchdog.h"
#include "utils/logger.h"
#include "utils/threads/thread.h"
#include "utils/threads/thread_delegate.h"
#include "utils/date_time.h"
#include "utils/lock.h"
namespace request_watchdog {
class RequestWatchdog : public Watchdog {
public:
//static Watchdog* instance();
virtual void AddListener(WatchdogSubscriber* subscriber);
virtual void RemoveListener(WatchdogSubscriber* subscriber);
virtual void removeAllListeners();
/*
* @brief Adds request
*
* @brief requestInfo Request info (connection key, request correlation id,
* request id, watchdog timeout for request, current application hmi level
*/
virtual void addRequest(RequestInfo* requestInfo);
/*
* @brief Removes corresponding request
*
* @brief connection_key Application connection key
* @brief correlation_id Mobile request correlation ID
*/
virtual void removeRequest(int32_t connection_key,
int32_t correlation_id);
/*
* @brief Update request watchdog timeout
*
* @brief connection_key Application connection key
* @brief correlation_id Mobile request correlation ID
* @brief new_timeout_value New value of request watchdog timeout
*/
virtual void updateRequestTimeout(int32_t connection_key,
int32_t correlation_id,
int32_t new_timeout_value);
/*
* @brief Check if amount of requests during time scale for application
* doesn't exceed limit.
*
* @brief connection_key Application ID
* @brief app_time_scale Configured time scale for application
* @brief max_request_per_time_scale Configured max request amount for
* application time scale
*
* @return TRUE if amount of request doesn't exceed limit, otherwise FALSE
*/
virtual bool checkTimeScaleMaxRequest(
const int32_t& connection_key,
const uint32_t& app_time_scale,
const uint32_t& max_request_per_time_scale);
/*
* @brief Check if amount of requests during time scale for application in
* specified hmi level doesn't exceed limit.
*
* @brief hmi_level Application hmi level(NONE)
* @brief connection_key Application ID
* @brief app_time_scale Configured time scale for application
* @brief max_request_per_time_scale Configured max request amount for
* application time scale
*
* @return TRUE if amount of request doesn't exceed limit, otherwise FALSE
*/
virtual bool checkHMILevelTimeScaleMaxRequest(
const int32_t& hmi_level,
const int32_t& connection_key,
const uint32_t& app_time_scale,
const uint32_t& max_request_per_time_scale);
/*
* @brief Removes all requests
*/
virtual void removeAllRequests();
virtual int32_t getRegesteredRequestsNumber();
~RequestWatchdog();
RequestWatchdog();
private:
void notifySubscribers(const RequestInfo& requestInfo);
void startDispatcherThreadIfNeeded();
void stopDispatcherThreadIfNeeded();
friend class QueueDispatcherThreadDelegate;
class QueueDispatcherThreadDelegate : public threads::ThreadDelegate {
public:
explicit QueueDispatcherThreadDelegate(RequestWatchdog *inRequestWatchdog);
void threadMain();
virtual bool exitThreadMain();
private:
volatile bool stop_flag_;
RequestWatchdog* requestWatchdog_;
DISALLOW_COPY_AND_ASSIGN(QueueDispatcherThreadDelegate);
};
/*
* @brief Structure used in std algorithms to determine amount of request
* during time scale
*/
struct TimeScale {
explicit TimeScale(const TimevalStruct& start, const TimevalStruct& end,
const int32_t& connection_key)
: start_(start),
end_(end),
connection_key_(connection_key) {};
bool operator()(std::pair<RequestInfo*, TimevalStruct> mapEntry) {
bool result = false;
if (mapEntry.first->connectionID_ == connection_key_) {
if (mapEntry.second.tv_sec >= start_.tv_sec &&
mapEntry.second.tv_sec <= end_.tv_sec) {
result = true;
}
}
return result;
};
TimevalStruct start_;
TimevalStruct end_;
int32_t connection_key_;
};
/*
* @brief Structure used in std algorithms to determine amount of request
* during time scale for application in defined hmi level
*/
struct HMILevelTimeScale {
explicit HMILevelTimeScale(
const TimevalStruct& start, const TimevalStruct& end,
const int32_t& connection_key, const int32_t& hmi_level)
: start_(start),
end_(end),
connection_key_(connection_key),
hmi_level_(hmi_level) {};
bool operator()(std::pair<RequestInfo*, TimevalStruct> mapEntry) {
bool result = false;
if (mapEntry.first->connectionID_ == connection_key_ &&
mapEntry.first->app_hmi_level_ == hmi_level_) {
if (mapEntry.second.tv_sec >= start_.tv_sec &&
mapEntry.second.tv_sec <= end_.tv_sec) {
result = true;
}
}
return result;
};
TimevalStruct start_;
TimevalStruct end_;
int32_t connection_key_;
int32_t hmi_level_;
};
static const int32_t DEFAULT_CYCLE_TIMEOUT = 250000;
static log4cxx::LoggerPtr logger_;
std::list<WatchdogSubscriber*> subscribers_;
sync_primitives::Lock subscribersLock_;
std::map<RequestInfo*, TimevalStruct> requests_;
sync_primitives::Lock requestsLock_;
threads::Thread queueDispatcherThread;
DISALLOW_COPY_AND_ASSIGN(RequestWatchdog);
};
} // namespace request_watchdog
#endif // SRC_COMPONENTS_REQUEST_WATCHDOG_INCLUDE_REQUEST_WATCHDOG_REQUEST_WATCHDOG_H_
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