linux下socket编程总是bind错误。求教～～

同样代码在windows下运行成功。
头文件：
C/C++ code:

#ifndef SENDER_H
#define SENDER_H

#include <wx/thread.h>
#include "package.h"
#include <string>

#ifdef WIN32
#include <winsock2.h>
#else
#include <arpa/inet.h>
#include <errno.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#endif

#ifdef WIN32
typedef int socklen_t;
typedef int ssize_t;
#endif

#ifdef __LINUX__
typedef int SOCKET;
typedef unsigned char BYTE;
typedef unsigned long DWORD;
#define FALSE 0
#define SOCKET_ERROR (-1)
#define INVALID_SOCKET (-1)
#define closesocket(_x) close(_x)
#endif

using namespace std;

class DMS_serverFrame;
class reader;

class sender : public wxThread
{
public:
sender(DMS_serverFrame* frame);
virtual ~sender();
virtual wxThread::ExitCode Entry();
protected:
void sendMsgEvent(string msg);
private:
void sendData(SOCKET sock);
void changeVolume(short *buf);
void sendEmptyPackage(SOCKET sock);
void sendDataPackage(SOCKET sock, package pack,int i);
int send_all(SOCKET sock, char* buf, int nByte);
void recv_all(SOCKET sock, char* buf,int nByte);

DMS_serverFrame *m_pframe;
reader * prd;
SOCKET slist