DefaultLogSystem.h

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#pragma once
 
#include <aws/core/Core_EXPORTS.h>
 
#include <aws/core/utils/logging/FormattedLogSystem.h>
#include <aws/core/utils/logging/LogLevel.h>
#include <aws/core/utils/memory/stl/AWSVector.h>
#include <aws/core/utils/memory/stl/AWSString.h>
#include <aws/core/utils/memory/stl/AWSStreamFwd.h>
 
#include <thread>
#include <memory>
#include <mutex>
#include <atomic>
#include <condition_variable>
 
namespace Aws
{
    namespace Utils
    {
        namespace Logging
        {
            class AWS_CORE_API DefaultLogSystem : public FormattedLogSystem
            {
            public:
                using Base = FormattedLogSystem;
 
                DefaultLogSystem(LogLevel logLevel, const std::shared_ptr<Aws::OStream>& logFile);
                DefaultLogSystem(LogLevel logLevel, const Aws::String& filenamePrefix);
 
                virtual ~DefaultLogSystem();
 
                void Flush() override;
 
                struct LogSynchronizationData
                {
                public:
                    LogSynchronizationData() : m_stopLogging(false) {}
 
                    std::mutex m_logQueueMutex;
                    std::condition_variable m_queueSignal;
                    Aws::Vector<Aws::String> m_queuedLogMessages;
                    bool m_stopLogging;
 
                private:
                    LogSynchronizationData(const LogSynchronizationData& rhs) = delete;
                    LogSynchronizationData& operator =(const LogSynchronizationData& rhs) = delete;
                };
 
            protected:
                virtual void ProcessFormattedStatement(Aws::String&& statement) override;
 
            private:
                DefaultLogSystem(const DefaultLogSystem& rhs) = delete;
                DefaultLogSystem& operator =(const DefaultLogSystem& rhs) = delete;
 
                LogSynchronizationData m_syncData;
 
                std::thread m_loggingThread;
            };
 
        } // namespace Logging
    } // namespace Utils
} // namespace Aws