mirror of
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118 lines
2.3 KiB
C++
118 lines
2.3 KiB
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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#ifndef PROCESS_H
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#define PROCESS_H
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#include "base/i2-base.hpp"
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#include "base/dictionary.hpp"
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#include <iosfwd>
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#include <deque>
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#include <vector>
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#include <sstream>
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#include <mutex>
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#include <condition_variable>
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namespace icinga
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{
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/**
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* The result of a Process task.
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*
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* @ingroup base
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*/
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struct ProcessResult
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{
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pid_t PID;
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double ExecutionStart;
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double ExecutionEnd;
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long ExitStatus;
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String Output;
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};
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/**
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* A process task. Executes an external application and returns the exit
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* code and console output.
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*
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* @ingroup base
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*/
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class Process final : public Object
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{
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public:
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DECLARE_PTR_TYPEDEFS(Process);
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#ifdef _WIN32
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typedef String Arguments;
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typedef HANDLE ProcessHandle;
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typedef HANDLE ConsoleHandle;
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#else /* _WIN32 */
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typedef std::vector<String> Arguments;
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typedef pid_t ProcessHandle;
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typedef int ConsoleHandle;
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#endif /* _WIN32 */
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static const std::deque<Process::Ptr>::size_type MaxTasksPerThread = 512;
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Process(Arguments arguments, Dictionary::Ptr extraEnvironment = nullptr);
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~Process() override;
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void SetTimeout(double timeout);
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double GetTimeout() const;
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void SetAdjustPriority(bool adjust);
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bool GetAdjustPriority() const;
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void Run(const std::function<void (const ProcessResult&)>& callback = std::function<void (const ProcessResult&)>());
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const ProcessResult& WaitForResult();
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pid_t GetPID() const;
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static Arguments PrepareCommand(const Value& command);
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static void ThreadInitialize();
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static String PrettyPrintArguments(const Arguments& arguments);
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#ifndef _WIN32
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static void InitializeSpawnHelper();
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#endif /* _WIN32 */
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private:
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Arguments m_Arguments;
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Dictionary::Ptr m_ExtraEnvironment;
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double m_Timeout;
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#ifndef _WIN32
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bool m_SentSigterm;
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#endif /* _WIN32 */
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bool m_AdjustPriority;
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ProcessHandle m_Process;
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pid_t m_PID;
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ConsoleHandle m_FD;
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#ifdef _WIN32
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bool m_ReadPending;
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bool m_ReadFailed;
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OVERLAPPED m_Overlapped;
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char m_ReadBuffer[1024];
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#endif /* _WIN32 */
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std::ostringstream m_OutputStream;
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std::function<void (const ProcessResult&)> m_Callback;
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ProcessResult m_Result;
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bool m_ResultAvailable;
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std::mutex m_ResultMutex;
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std::condition_variable m_ResultCondition;
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static void IOThreadProc(int tid);
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bool DoEvents();
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int GetTID() const;
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double GetNextTimeout() const;
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};
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}
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#endif /* PROCESS_H */
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