int main(int argc, const char * argv[]) { if(argc != 2){ printf("Usage: ./xxx port(port stands for the port wanna listen on.)\n"); exit(1); } signal(SIGCHLD, SIG_IGN); if(!is_free()){ // exit(0); } int port = atoi(argv[1]); struct sockaddr_in addr; bzero(&addr, sizeof(addr)); addr.sin_family = AF_INET; addr.sin_addr.s_addr = htonl(INADDR_ANY); addr.sin_port = htons(port); int server_socket = socket(AF_INET, SOCK_STREAM, 0); bind(server_socket, (struct sockaddr *) &addr, sizeof(addr)); listen(server_socket, 0); ProcessPool* pool = new ProcessPool(server_socket, 1, 10); pool->init(); pool->addTask(print, NULL); pool->start(); if(pool) delete(pool); exit(0); }