Hiroaki86
581 lines
19 KiB
Plaintext
581 lines
19 KiB
Plaintext
#ifndef HIT_EXTERNAL_PROCESS_MQH
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#define HIT_EXTERNAL_PROCESS_MQH
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//+------------------------------------------------------------------+
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//| "process_done.txt"を作成する関数
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//+------------------------------------------------------------------+
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/**
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* @brief 指定したdoneファイルを作成します。
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*
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* @param name 作成するファイル名。MT5のMQL5\Files配下を基準に扱います。
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*/
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void CreateDoneFile(const string name)
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{
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if(!FileIsExist(name))
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{
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int h = FileOpen(name, FILE_WRITE|FILE_TXT);
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if(h != INVALID_HANDLE)
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FileClose(h);
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else
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Print("Failed to create file: ", name, " err=", GetLastError());
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}
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}
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//+------------------------------------------------------------------+
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//| "process_done.txt"を削除する関数
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//+------------------------------------------------------------------+
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/**
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* @brief 指定したdoneファイルを削除します。
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*
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* @param name 削除するファイル名。存在しない場合は何もしません。
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*/
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void DeleteDoneFile(const string name)
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{
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if(FileIsExist(name))
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FileDelete(name);
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}
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//+------------------------------------------------------------------+
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//| "process_done.txt"の存在を確認し、存在する場合はtrueを返す関数
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//+------------------------------------------------------------------+
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/**
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* @brief 指定したdoneファイルの存在有無を確認します。
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*
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* @param name 確認するファイル名。
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* @return ファイルが存在する場合はtrue、存在しない場合はfalse。
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*/
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bool CheckDoneFile(const string name)
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{
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return FileIsExist(name);
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}
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//+------------------------------------------------------------------+
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//| Python実行中ファイルを作成する関数
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//+------------------------------------------------------------------+
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/**
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* @brief Python起動時刻を実行中ファイルへ記録します。
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*
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* @param name 作成するrunningファイル名。
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*/
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void CreateRunningFile(const string name, const uint process_id)
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{
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int h = FileOpen(name, FILE_WRITE | FILE_TXT);
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if(h != INVALID_HANDLE)
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{
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FileWrite(h, IntegerToString((long)TimeCurrent()));
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FileWrite(h, IntegerToString((long)process_id));
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FileClose(h);
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}
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else
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Print("Failed to create running file: ", name, " err=", GetLastError());
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}
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//+------------------------------------------------------------------+
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//| Python実行中ファイルを削除する関数
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//+------------------------------------------------------------------+
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/**
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* @brief 指定したrunningファイルを削除します。
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*
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* @param name 削除するrunningファイル名。
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*/
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void DeleteRunningFile(const string name)
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{
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if(FileIsExist(name))
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FileDelete(name);
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}
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//+------------------------------------------------------------------+
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//| Python実行開始時刻を読み込む関数
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//+------------------------------------------------------------------+
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/**
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* @brief runningファイルに記録されたPython起動時刻を読み込みます。
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*
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* @param name 読み込むrunningファイル名。
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* @return 読み込めた起動時刻。失敗時は0。
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*/
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datetime LoadRunningStartedAt(const string name)
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{
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if(!FileIsExist(name))
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return 0;
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int h = FileOpen(name, FILE_READ | FILE_TXT);
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if(h == INVALID_HANDLE)
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{
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Print("Failed to open running file: ", name, " err=", GetLastError());
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return 0;
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}
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string line = FileReadString(h);
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FileClose(h);
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return (datetime)StringToInteger(line);
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}
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//+------------------------------------------------------------------+
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//| Python実行プロセスIDを読み込む関数
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//+------------------------------------------------------------------+
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/**
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* @brief runningファイルに記録されたプロセスIDを読み込みます。
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*
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* @param name 読み込むrunningファイル名。
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* @return 読み込めたプロセスID。旧形式または失敗時は0。
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*/
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uint LoadRunningProcessId(const string name)
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{
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if(!FileIsExist(name))
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return 0;
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int h = FileOpen(name, FILE_READ | FILE_TXT);
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if(h == INVALID_HANDLE)
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{
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Print("Failed to open running file: ", name, " err=", GetLastError());
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return 0;
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}
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FileReadString(h); // started_at
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if(FileIsEnding(h))
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{
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FileClose(h);
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return 0;
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}
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string line = FileReadString(h);
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FileClose(h);
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return (uint)StringToInteger(line);
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}
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//+------------------------------------------------------------------+
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//| Python実行中ファイルがタイムアウトしているか判定する関数
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//+------------------------------------------------------------------+
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/**
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* @brief runningファイルの起動時刻からPython待ち上限を超えているか判定します。
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*
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* @param name 判定するrunningファイル名。
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* @return タイムアウトしている場合はtrue。
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*/
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bool IsRunningFileTimedOut(const string name)
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{
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datetime started_at = LoadRunningStartedAt(name);
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if(started_at <= 0)
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return true;
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return (TimeCurrent() - started_at >= PYTHON_TIMEOUT_SECONDS);
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}
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//+------------------------------------------------------------------+
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//| 外部プロセス状態を初期値に戻す関数
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//+------------------------------------------------------------------+
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void ResetExternalProcessState(ExternalProcessState &process)
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{
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if(process.handle != 0)
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CloseHandle(process.handle);
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process.handle = 0;
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process.process_id = 0;
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process.active = false;
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process.exit_code_ready = false;
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process.exit_code = 0;
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process.started_at = 0;
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}
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//+------------------------------------------------------------------+
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//| runningファイルのPIDからプロセスハンドルを復元する関数
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//+------------------------------------------------------------------+
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bool AttachRunningProcess(const string running_file, const string label, ExternalProcessState &process)
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{
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if(process.active && process.handle != 0)
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return true;
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uint process_id = LoadRunningProcessId(running_file);
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if(process_id == 0)
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return false;
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long handle = OpenProcess(PROCESS_QUERY_LIMITED_INFORMATION | SYNCHRONIZE, 0, process_id);
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if(handle == 0)
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{
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Print("[", label, "] failed to open running process. pid=", process_id, " err=", GetLastError());
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return false;
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}
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process.handle = handle;
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process.process_id = process_id;
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process.active = true;
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process.exit_code_ready = false;
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process.exit_code = STILL_ACTIVE;
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process.started_at = LoadRunningStartedAt(running_file);
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return true;
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}
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//+------------------------------------------------------------------+
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//| 外部プロセスの終了状態を更新する関数
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//+------------------------------------------------------------------+
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bool UpdateExternalProcessStatus(ExternalProcessState &process, const string label)
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{
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if(!process.active || process.handle == 0)
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return true;
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int wait_result = WaitForSingleObject(process.handle, 0);
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if(wait_result == WAIT_TIMEOUT)
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return false;
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uint exit_code = 1;
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if(wait_result == WAIT_OBJECT_0)
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{
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if(GetExitCodeProcess(process.handle, exit_code) == 0)
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{
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Print("[", label, "] failed to get process exit code. err=", GetLastError());
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exit_code = 1;
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}
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}
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else
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{
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Print("[", label, "] WaitForSingleObject failed. result=", wait_result, " err=", GetLastError());
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exit_code = 1;
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}
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CloseHandle(process.handle);
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process.handle = 0;
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process.active = false;
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process.exit_code_ready = true;
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process.exit_code = exit_code;
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Print("[", label, "] process finished. pid=", process.process_id, " exit_code=", exit_code);
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return true;
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}
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//+------------------------------------------------------------------+
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//| 外部プロセスがタイムアウトしているか判定する関数
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//+------------------------------------------------------------------+
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bool IsExternalProcessTimedOut(ExternalProcessState &process, const string running_file)
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{
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datetime started_at = process.started_at;
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if(started_at <= 0)
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started_at = LoadRunningStartedAt(running_file);
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if(started_at <= 0)
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return true;
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return (TimeCurrent() - started_at >= PYTHON_TIMEOUT_SECONDS);
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}
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//+------------------------------------------------------------------+
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//| バッチファイルをプロセスハンドル付きで起動する関数
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//+------------------------------------------------------------------+
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/**
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* @brief パス内の最後のディレクトリ区切り文字位置を返します。
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*/
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int LastPathSeparatorIndex(const string path)
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{
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for(int i = StringLen(path) - 1; i >= 0; i--)
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{
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int ch = StringGetCharacter(path, i);
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if(ch == 92 || ch == 47) // backslash or slash
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return i;
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}
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return -1;
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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/**
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* @brief ファイルパスから親ディレクトリを返します。
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*/
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string ParentDirectory(const string path)
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{
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int index = LastPathSeparatorIndex(path);
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if(index <= 0)
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return "";
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return StringSubstr(path, 0, index);
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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/**
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* @brief batファイルの位置からPythonアプリの作業ディレクトリを返します。
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*/
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string BatchWorkingDirectory(const string bat_file)
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{
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string bat_dir = ParentDirectory(bat_file);
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int length = StringLen(bat_dir);
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if(length >= 4 && StringSubstr(bat_dir, length - 4) == "\\bat")
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return StringSubstr(bat_dir, 0, length - 4);
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return bat_dir;
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}
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//+------------------------------------------------------------------+
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//| |
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//+------------------------------------------------------------------+
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bool StartBatchProcess(const string bat_file, const string running_file, const string label, ExternalProcessState &process)
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{
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STARTUPINFO_W startup_info = {};
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PROCESS_INFORMATION process_info = {};
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startup_info.cb = (uint)sizeof(startup_info);
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string cmd_exe = "C:\\Windows\\System32\\cmd.exe";
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string command_line = "\"" + cmd_exe + "\" /c \"\"" + bat_file + "\"\"";
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string current_directory = BatchWorkingDirectory(bat_file);
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int created = CreateProcessW(
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cmd_exe,
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command_line,
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0,
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0,
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0,
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CREATE_NO_WINDOW,
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0,
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current_directory,
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startup_info,
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process_info
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);
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if(created == 0 || process_info.hProcess == 0)
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{
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Print("[", label, "] CreateProcessW failed. file=", bat_file,
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" cwd=", current_directory, " err=", GetLastError());
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ResetExternalProcessState(process);
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DeleteRunningFile(running_file);
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return false;
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}
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if(process_info.hThread != 0)
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CloseHandle(process_info.hThread);
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process.handle = process_info.hProcess;
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process.process_id = process_info.dwProcessId;
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process.active = true;
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process.exit_code_ready = false;
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process.exit_code = STILL_ACTIVE;
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process.started_at = TimeCurrent();
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CreateRunningFile(running_file, process.process_id);
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Print("[", label, "] process started. pid=", process.process_id,
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" file=", bat_file, " cwd=", current_directory);
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return true;
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}
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//+------------------------------------------------------------------+
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//| EA起動時のdoneファイル状態を整える関数
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//+------------------------------------------------------------------+
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/**
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* @brief EA起動時にPython実行中状態を壊さない範囲でdoneファイルを準備します。
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*
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* @param done_file 完了判定ファイル名。
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* @param running_file 実行中判定ファイル名。
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* @param label ログ表示用ラベル。
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*/
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void PrepareDoneFileOnInit(const string done_file, const string running_file, const string label)
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{
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if(CheckDoneFile(done_file))
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{
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DeleteRunningFile(running_file);
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return;
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}
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if(FileIsExist(running_file))
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{
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if(IsRunningFileTimedOut(running_file))
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{
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Print("[", label, "] stale running file found on init. Remove marker without creating done.");
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DeleteRunningFile(running_file);
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}
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else
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Print("[", label, "] Python seems to be running on init. Keep waiting.");
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return;
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}
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Print("[", label, "] done file not found on init. Keep as not-ready until the next trigger.");
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}
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//+------------------------------------------------------------------+
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//| Python完了状態を返す関数
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//+------------------------------------------------------------------+
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/**
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* @brief doneファイルがあれば完了扱いにし、runningファイルを片付けます。
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*
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* @param done_file 完了判定ファイル名。
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* @param running_file 実行中判定ファイル名。
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* @return 完了済みの場合はtrue。
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*/
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bool IsProcessResultReady(const string done_file, const string running_file, const string result_file, const string label, ExternalProcessState &process)
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{
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if(process.active || FileIsExist(running_file))
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{
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if(process.active || AttachRunningProcess(running_file, label, process))
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{
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if(!UpdateExternalProcessStatus(process, label))
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return false;
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DeleteRunningFile(running_file);
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if(process.exit_code_ready && process.exit_code != 0)
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{
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Print("[", label, "] process failed. exit_code=", process.exit_code);
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return false;
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}
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}
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else if(!CheckDoneFile(done_file))
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{
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return false;
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}
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}
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if(!CheckDoneFile(done_file))
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return false;
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if(!FileIsExist(result_file))
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{
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Print("[", label, "] done exists but result file is missing: ", result_file);
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return false;
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}
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DeleteRunningFile(running_file);
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return true;
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}
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//+------------------------------------------------------------------+
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//| Python開始可能状態を返す関数
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//+------------------------------------------------------------------+
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/**
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* @brief done/runningファイル状態からPythonを新規起動できるか判定します。
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*
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* @param done_file 完了判定ファイル名。
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* @param running_file 実行中判定ファイル名。
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* @param label ログ表示用ラベル。
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* @return 起動可能な場合はtrue。
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*/
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bool IsProcessStartAllowed(const string done_file, const string running_file, const string label, ExternalProcessState &process)
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{
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if(process.active || FileIsExist(running_file))
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{
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if(process.active || AttachRunningProcess(running_file, label, process))
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{
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if(!UpdateExternalProcessStatus(process, label))
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{
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if(IsExternalProcessTimedOut(process, running_file))
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Print("[", label, "] Python timed out, but the process is still running. Keep waiting.");
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else
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Print("[", label, "] Python is still running. Skip execute.");
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return false;
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}
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DeleteRunningFile(running_file);
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if(process.exit_code_ready && process.exit_code != 0)
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Print("[", label, "] previous process failed. exit_code=", process.exit_code, ". Retry is allowed.");
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}
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else
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{
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if(CheckDoneFile(done_file))
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{
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DeleteRunningFile(running_file);
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return true;
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}
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if(IsRunningFileTimedOut(running_file))
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{
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Print("[", label, "] stale running marker without live process. Retry is allowed.");
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DeleteRunningFile(running_file);
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return true;
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}
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Print("[", label, "] running marker exists, but process cannot be verified yet. Skip execute.");
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return false;
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}
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}
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if(CheckDoneFile(done_file))
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{
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DeleteRunningFile(running_file);
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return true;
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}
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Print("[", label, "] done file missing without running marker. Start new process.");
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return true;
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}
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//+------------------------------------------------------------------+
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//| タイムアウトしたPython待ちを復旧する関数
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//+------------------------------------------------------------------+
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/**
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* @brief Pythonがdoneファイルを返さない状態を検知し、再実行できる状態へ戻します。
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*/
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void RecoverTimedOutPythonProcesses()
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{
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if(RecoverTimedOutProcess(done_trend_file, running_trend_file, "trend", g_trend_process))
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{
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g_ea.load_trend_flg = false;
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g_init_trend_pending = true;
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}
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if(RecoverTimedOutProcess(done_entry_file, running_entry_file, "entry", g_entry_process))
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{
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g_ea.load_target_flg = false;
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g_bars_H1_check = false;
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g_bars_M15_check = false;
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g_ea.chk_cnt = 0;
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g_init_entry_pending = true;
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}
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}
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//+------------------------------------------------------------------+
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//| 個別Python処理のタイムアウトを復旧する関数
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//+------------------------------------------------------------------+
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/**
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* @brief 1種類のPython処理について、実行中ファイルのタイムアウトを検知します。
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*
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* @param done_file 完了判定ファイル名。
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* @param running_file 実行中判定ファイル名。
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* @param label ログ表示用ラベル。
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* @return タイムアウト復旧を行った場合はtrue。
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*/
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bool RecoverTimedOutProcess(const string done_file, const string running_file, const string label, ExternalProcessState &process)
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{
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if(CheckDoneFile(done_file) && !process.active)
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{
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DeleteRunningFile(running_file);
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return false;
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}
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if(!process.active && !FileIsExist(running_file))
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return false;
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if(process.active || AttachRunningProcess(running_file, label, process))
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{
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if(!UpdateExternalProcessStatus(process, label))
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{
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if(IsExternalProcessTimedOut(process, running_file))
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Print("[", label, "] Python exceeded ", PYTHON_TIMEOUT_SECONDS,
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" seconds, but the process is still running. Keep waiting.");
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return false;
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}
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DeleteRunningFile(running_file);
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if(process.exit_code_ready && process.exit_code != 0)
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{
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Print("[", label, "] Python process failed. Retry on next trigger.");
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return true;
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}
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if(!CheckDoneFile(done_file))
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{
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Print("[", label, "] Python process ended without done file. Retry on next trigger.");
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return true;
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}
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return false;
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}
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if(!IsRunningFileTimedOut(running_file))
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return false;
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Print("[", label, "] Python did not finish within ",
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PYTHON_TIMEOUT_SECONDS, " seconds, and no live process was found. Retry is allowed.");
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DeleteRunningFile(running_file);
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return true;
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}
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#endif
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