dl_process.h

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#pragma once
 
#include <string>
 
#include "system/dl_thread.h"
#include "base/dl_list_mt.h"
 
namespace subprocess
{
    class Popen;
}
 
namespace dl
{
class Process
{
public:
    enum class State
    {
        NONE,   // 空
        START, // 开始准备
        RUN, // 正在执行
        END      // 执行完成
    };
    // 调用结果
    struct Result
    {
        int _exitCode;
        std::string _str;
    };  
    // 异步调用
    class Instance
    {
        friend class Process;
    public:
        std::string GetOutput()
        {
            std::lock_guard guard{ _mutexRet };
            return _result._str;
        }

        ListMultiThread<std::string>& GetOutputLine()
        {
            return _listLine;
        }
        Instance() :
            _thread{ nullptr },
            _p{ nullptr },
            _bEnd{ false }
        {
        }
        ~Instance();
    private:
        Thread* _thread;
        subprocess::Popen* _p;
        std::vector<std::string> _cmd;
        bool _bEnd;
        std::mutex _mutexRet;
        Result _result;
        ListMultiThread<std::string> _listLine;
    };
 
    // 阻塞调用
    static bool Exec(const std::vector<std::string>& cmd, Result& result);
 
    // 异步调用
    static bool ExecMulti(const std::vector<std::string>& cmd, Instance& instance);
 
 
 
    static void Send(Instance& instance, std::string_view str);
private:
    static void _thread_exec(void* p);
 
 
    static std::string _read(Instance& instance);
};
}