diff options
Diffstat (limited to 'src/components/connection_handler/include/connection_handler/heartbeat_monitor.h')
-rw-r--r-- | src/components/connection_handler/include/connection_handler/heartbeat_monitor.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/src/components/connection_handler/include/connection_handler/heartbeat_monitor.h b/src/components/connection_handler/include/connection_handler/heartbeat_monitor.h new file mode 100644 index 0000000000..9b641ce01c --- /dev/null +++ b/src/components/connection_handler/include/connection_handler/heartbeat_monitor.h @@ -0,0 +1,114 @@ +/* + * 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_CONNECTION_HANDLER_INCLUDE_HEARTBEAT_MONITOR_H_ +#define SRC_COMPONENTS_CONNECTION_HANDLER_INCLUDE_HEARTBEAT_MONITOR_H_ + +#include <stdint.h> +#include <map> + +#include "utils/threads/thread.h" +#include "utils/threads/thread_delegate.h" +#include "utils/date_time.h" +#include "utils/macro.h" +#include "utils/lock.h" + +namespace connection_handler { + +class Connection; + +/* + * Starts hearbeat timer for session and when it elapses closes it + */ +class HeartBeatMonitor: public threads::ThreadDelegate { + public: + HeartBeatMonitor(int32_t heartbeat_timeout_seconds, + Connection *connection); + + /** + * Thread procedure. + */ + virtual void threadMain(); + + /** + * \brief add and remove session + */ + void AddSession(uint8_t session_id); + void RemoveSession(uint8_t session_id); + + /** + * \brief Resets timer preventing session from being killed + */ + void KeepAlive(uint8_t session_id); + + /** + * \brief Thread exit procedure. + */ + virtual bool exitThreadMain(); + + void set_heartbeat_timeout_seconds(int32_t timeout); + + private: + struct SessionState; + typedef std::map<uint8_t, SessionState> SessionMap; + + // \brief Heartbeat timeout, should be read from profile + int32_t heartbeat_timeout_seconds_; + // \brief Connection that must be closed when timeout elapsed + Connection *connection_; + + static const int32_t kDefaultCycleTimeout = 100000; + + struct SessionState { + TimevalStruct heartbeat_expiration; + bool is_heartbeat_sent; + }; + + // \brief monitored sessions collection + + SessionMap sessions_; + + sync_primitives::Lock sessions_list_lock_; // recurcive + sync_primitives::Lock main_thread_lock_; + mutable sync_primitives::Lock heartbeat_timeout_seconds_lock_; + + volatile bool run_; + + void Process(); + void RefreshExpiration(TimevalStruct* expiration) const; + inline bool HasTimeoutElapsed(const TimevalStruct& expiration) const; + + DISALLOW_COPY_AND_ASSIGN(HeartBeatMonitor); +}; + +} // namespace connection_handler + +#endif // SRC_COMPONENTS_CONNECTION_HANDLER_INCLUDE_HEARTBEAT_MONITOR_H_ |