csocket.h

Unix 下的多线程下载程序 支持断点续传功能

#ifndef __CSOCKET_H__ 
#define __CSOCKET_H__ 
 
#include <stdio.h> 
#include <stdlib.h> 
#include <unistd.h> 
#include <stdarg.h> 
#include <string.h> 
#include <errno.h> 
#include <netdb.h> 
#include <fcntl.h> 
#include <sys/time.h> 
#include <sys/socket.h> 
#include <netinet/in.h> 
#include <arpa/inet.h> 
#include <string> 
#include <iostream> 
 
using namespace std; 
 
typedef enum socket_type { SERVER_TYPE = 0, CLIENT_TYPE } s_type; 
typedef enum socket_state{ CONN_ERROR = -1, CONN_OK = 0, CONN_WAIT = 1 } s_state; 
 
class Sock_instance 
{ 
public: 
	Sock_instance(string hostname, unsigned port, s_type type); 
	~Sock_instance(); 
	bool Connect(); 
	int fd(); 
	s_state state(); 
	bool Send(string msg); 
	int Receive(); 
	void Close(); 
	unsigned char* data() const; 
	int datalen() const; 
	string http_head() const; 
private: 
	string	_hostname; 
	unsigned	_port; 
	int		_fd; 
	s_state	_state; 
	s_type	_type; 
	unsigned char *_data; 
	int _datalen; 
	string _http_head; 
}; 
 
 
#endif