server.cc

AVR 单片机程序设计用到的模拟器

/* $Id: Server.cc,v 1.3 2000/10/01 17:00:42 pure Exp $ */

#include "Server.h"
#include <unistd.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include <arpa/inet.h>
#include <sys/time.h>

UnixServer::UnixServer(char* hostname, int port)
{
	struct hostent* host;
	host = gethostbyname(hostname);
	if (!host) 
	    throw;
	
	struct sockaddr_in sa;
	sa.sin_family = AF_INET;
	sa.sin_port = htons(port);
	sa.sin_addr = *(struct in_addr *) host->h_addr;
	
	sock = socket(PF_INET, SOCK_STREAM, 0);
	if (sock < 0) 
	    throw;
	
	char tmp;
	tmp=1;
	setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char*)&tmp, sizeof(tmp));
	tmp=1;
	setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char*)&tmp, sizeof(tmp));

	if (bind(sock, (struct sockaddr *)&sa, sizeof(sa)) < 0)
	    throw;
	
	if (listen(sock, 1) < 0)
	    throw;
	
	filedes = -1;
}

void UnixServer::accept()
{
	struct sockaddr_in sa;
	socklen_t size = sizeof(sa);
	
	filedes = ::accept(sock, (struct sockaddr *) &sa, &size);
	if (filedes < 0) throw;
}

UnixServer::~UnixServer()
{
	if (filedes >= 0) {
		shutdown(filedes, SHUT_RDWR);
		close(filedes);
	}
	close(sock);
}

Server::Server(char* hostname, int port) :
UnixServer(hostname, port),
istream(&buf),
ostream(&buf)
{
}

Server::~Server()
{
}

int Server::fd()
{
	return filedes;
}

void Server::accept()
{
	UnixServer::accept();
	buf.attach(filedes);
}