封装Unix进程的基本进程类_C++_下载.zip

#include <stdlib.h> #include <stdio.h> #include <unistd.h> #include <sys/wait.h> #include "Process.hpp" Process::Process(const std::vector<char*>& args, bool verbose) : verbose(verbose), m_name(args[0]), m_pid((pid_t)NULL), m_writepipe {-1,-1}, m_readpipe {-1,-1}, m_pwrite((FILE*)NULL), m_pread((FILE*)NULL) { if ((m_pid = fork()) < 0) { perror("Process fork"); throw std::string("Process fork"); } else if ( m_pid == 0 ) { /* child process */ execvp(args[0], const_cast<char**>(&args[0])); perror("Process execvp"); throw std::string("Process execvp"); } else { /* parent process */ if (verbose) std::cerr << "Process " << m_name << ": forked PID " << m_pid << std::endl; } }; Process::~Process() { if (verbose) std::cerr << "Process " << m_name << ": Entering ~Process()" << std::endl; kill(m_pid, SIGTERM); int status; pid_t pid = waitpid(m_pid, &status, 0); if (pid < 0) perror("~Process waitpid"); if (verbose) std::cerr << "Process " << m_name << ": Leaving ~Process()" << std::endl; };