一 代码结构

一种简单易用的C++进程类_#include

二 代码

1. posix_process.h

/*************************************************************************
> File Name: posix_process.h
> Author: wangzhicheng
> Created Time: Thu 12 Feb 2015 07:35:34 PM WST
************************************************************************/
#ifndef POSIX_PROCESS_H
#define POSIX_PROCESS_H
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <spawn.h>
#include <sys/wait.h>
#include <errno.h>
#include <iostream>
#include <string>
using namespace std;
/*
* posix process class
* */
class POSIX_PROCESS {
protected:
pid_t mPid;
posix_spawnattr_t mSpawnattr;
posix_spawn_file_actions_t mFileactions;
char **mArgv;
char **mEnvp;
string mProgram_path;
public:
POSIX_PROCESS(const string &program_path, char **argv, char **envp);
POSIX_PROCESS(const string &program_path, char **argv, char **envp, posix_spawnattr_t &X, \
posix_spawn_file_actions_t &Y);
void run(void);
void join(int &value);
};
#endif


2. posix_process.cpp

/*************************************************************************
> File Name: posix_process.cpp
> Author: wangzhicheng
> Mail: 2363702560@163.com
> Created Time: Thu 12 Feb 2015 07:50:36 PM WST
************************************************************************/

#include "posix_process.h"
POSIX_PROCESS::POSIX_PROCESS(const string &program_path, char **argv, char **envp) {
this->mArgv = argv;
this->mEnvp = envp;
this->mProgram_path = program_path;
posix_spawnattr_init(&this->mSpawnattr);
posix_spawn_file_actions_init(&this->mFileactions);
}
POSIX_PROCESS::POSIX_PROCESS(const string &program_path, char **argv, char **envp, posix_spawnattr_t &X, posix_spawn_file_actions_t &Y) {
this->mArgv = argv;
this->mEnvp = envp;
this->mProgram_path = program_path;
this->mSpawnattr = X;
this->mFileactions = Y;
posix_spawnattr_init(&this->mSpawnattr);
posix_spawn_file_actions_init(&this->mFileactions);
}
void POSIX_PROCESS::run(void) {
posix_spawn(&this->mPid, this->mProgram_path.c_str(), &this->mFileactions, &this->mSpawnattr, \
this->mArgv, this->mEnvp);
}
void POSIX_PROCESS::join(int &value) {
wait(&value);
}


3. schedule.cpp

/*************************************************************************
> File Name: schedule.cpp
> Author: wangzhicheng
> Mail: 2363702560@qq.com
> Created Time: Thu 12 Feb 2015 08:01:44 PM WST
************************************************************************/
#include "posix_process.h"
int main(int argc, char **argv, char **envp) {
string program_path;
cin >> program_path;
POSIX_PROCESS process(program_path, argv, envp);
int value;
process.run();
process.join(value);

return 0;
}


4. makefile

CC=g++
all:
$(CC) -g -o main schedule.cpp posix_process.cpp posix_process.h


三 程序运行截图

一种简单易用的C++进程类_#ifndef_02