ZLMediaKit/server/Process.h
alexliyu7352 43c5d05d8f
使用clone替代fork (#1518)
使用clone替代fork
因为fork子进程有时会导致提前写时复制, 进而影响性能.
而vfork又会引起父进程阻塞
所以使用clone来产生子进程运行ffmpeg
2022-03-27 21:25:40 +08:00

40 lines
945 B
C++

/*
* Copyright (c) 2016 The ZLMediaKit project authors. All Rights Reserved.
*
* This file is part of ZLMediaKit(https://github.com/xia-chu/ZLMediaKit).
*
* Use of this source code is governed by MIT license that can be found in the
* LICENSE file in the root of the source tree. All contributing project authors
* may be found in the AUTHORS file in the root of the source tree.
*/
#ifndef ZLMEDIAKIT_PROCESS_H
#define ZLMEDIAKIT_PROCESS_H
#ifdef _WIN32
typedef int pid_t;
#else
#include <sys/wait.h>
#endif // _WIN32
#include <fcntl.h>
#include <string>
class Process {
public:
Process();
~Process();
void run(const std::string &cmd, std::string &log_file);
void kill(int max_delay,bool force = false);
bool wait(bool block = true);
int exit_code();
private:
pid_t _pid = -1;
void *_handle = nullptr;
void* _process_stack = nullptr;
int _exit_code = 0;
};
#endif //ZLMEDIAKIT_PROCESS_H