Initial MyShell header file.

Author: nthnn

include/myshell.hpp

@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2024 - Nathanne Isip
+ * This file is part of MyShell.
+ * 
+ * N8 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License,
+ * or (at your option) any later version.
+ * 
+ * N8 is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with N8. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef MYSHELL_HPP
+#define MYSHELL_HPP
+
+#include <condition_variable>
+#include <memory>
+#include <mutex>
+#include <queue>
+#include <string>
+#include <thread>
+#include <vector>
+
+#ifdef _WIN32
+#   include <windows.h>
+#else
+#   include <fcntl.h>
+#   include <signal.h>
+#   include <sys/types.h>
+#   include <sys/wait.h>
+#   include <unistd.h>
+#endif
+
+class MyShell {
+public:
+    MyShell(std::string command);
+    ~MyShell();
+
+    MyShell(const MyShell&) = delete;
+    MyShell& operator=(const MyShell&) = delete;
+
+    std::string readShellOutputStream();
+    std::string readShellErrorStream();
+
+    void writeToShell(std::string input);
+
+    void forceExit();
+    bool hasExited();
+
+    int exitCode();
+    int processId();
+
+private:
+    bool procHasExited;
+    bool stopSignal;
+    int procExitCode;
+
+    std::string outputBuffer;
+    std::string errorBuffer;
+    std::mutex outputMutex;
+    std::mutex errorMutex;
+
+    std::thread outputReader;
+    std::thread errorReader;
+
+    void outputReaderThread();
+    void errorReaderThread();
+
+    #ifdef _WIN32
+    HANDLE procHandle;
+    HANDLE inputWriteHandle;
+    HANDLE outputReadHandle;
+    HANDLE errorReadHandle;
+    DWORD procId;
+    
+    void createWindowsProcess(const std::string& command);
+    void readFromPipe(HANDLE pipe, std::string& buffer, std::mutex& mutex);
+
+    #else
+
+    pid_t procId;
+    int inputPipe[2];
+    int outputPipe[2];
+    int errorPipe[2];
+    
+    void createUnixProcess(const std::string& command);
+    void readFromPipe(int pipe, std::string& buffer, std::mutex& mutex);
+    void closeUnixPipes();
+
+    #endif
+
+    static const int bufferSize = 4096;
+};
+
+#endif