我是想通过TCP两个客户端之间进行通信，就不知道怎么样修改？请教各位大侠！
DWORD ClientThread(LPVOID sock)
{
char recvbuf[1024];
sockcli *sockfd = (sockcli *)sock;
while(1)
{
int nRet = recv(sockfd->sockClient,recvbuf,sizeof(recvbuf),0);
if(nRet == -1)
{
printf("recv error!\n");
closesocket((SOCKET)sockfd->sockClient);
return 0;
}
else printf("Data recevied from %s is %s\n",inet_ntoa(sockfd->addr.sin_addr),recvbuf);
}
closesocket((SOCKET)sockfd->sockClient);
delete sockfd;
return 0;
}
int main(int argc, char* argv[])
{
SOCKET sockfd;
struct sockaddr_in serv_addr;
HANDLE dwrecvClientThread;
DWORD ThreadAddr;
WSADATA wsaData;
WORD wVersionRequest = MAKEWORD(1,1);
if(WSAStartup(wVersionRequest,&wsaData))
{
printf("start socket failed!\n");
exit(0);
}
if((sockfd = socket(AF_INET,SOCK_STREAM,0)) == -1)
{
perror("TCP socket create error: ");
exit(0);
}
else printf("TCP socket create ok!\n");
memset(&serv_addr,0,sizeof(serv_addr));
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(PORT);
serv_addr.sin_addr.s_addr = INADDR_ANY;
if(bind(sockfd,(struct sockaddr *)&serv_addr,sizeof(serv_addr)) == -1)
{
perror("TCP socket bind error: ");
exit(0);
}
else printf("TCP socket bind ok!\n");
if(listen(sockfd,5) == -1)
{
perror("TCP socket listen error: ");
exit(0);
}
else printf("TCP socket listen ok!\n");
while(1)
{
struct sockaddr_in client_addr;
sockcli *pSockcli = new sockcli;
int len = sizeof(struct sockaddr);
pSockcli->sockClient = accept(sockfd,(struct sockaddr *)&client_addr,&len);
if(pSockcli->sockClient == -1)
{
perror("TCP socket accept error: ");
exit(0);
}
else printf("connection accepted on socket %d from %s\n",pSockcli->sockClient,inet_ntoa(client_addr.sin_addr));
pSockcli->addr =client_addr;
dwrecvClientThread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)&ClientThread,pSockcli,0,&ThreadAddr);
if(!dwrecvClientThread)
printf("can't create client thread!\n");
CloseHandle((HANDLE)dwrecvClientThread);
}
return 0;
} tcp thread socket
[解决办法]
两个客服端怎么建立TCP连接？
[解决办法]
那你得需要把你想要发到的客服端信息告诉服务器对吧， 比如A B两个客服端连接服务器C的时候，C记录了A,B 名字 ID IP 之类的信息， A 要向 B发的时候，就告诉C 一个 名字，ID， IP 之类的信息，服务器再在本地找到目的端的地址，发过去就行了。
[解决办法]
特供调试多线程程序使用：
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef WIN32
#include <windows.h>
#include <io.h>
#else
#include <unistd.h>
#include <sys/time.h>
#include <pthread.h>
#define CRITICAL_SECTION pthread_mutex_t
#define _vsnprintf vsnprintf
#endif
//Log{
#define MAXLOGSIZE 20000000
#define MAXLINSIZE 16000
#include <time.h>
#include <sys/timeb.h>
#include <stdarg.h>
char logfilename1[]="MyLog1.log";
char logfilename2[]="MyLog2.log";
static char logstr[MAXLINSIZE+1];
char datestr[16];
char timestr[16];
char mss[4];
CRITICAL_SECTION cs_log;
FILE *flog;
#ifdef WIN32
void Lock(CRITICAL_SECTION *l) {
EnterCriticalSection(l);
}
void Unlock(CRITICAL_SECTION *l) {
LeaveCriticalSection(l);
}
#else
void Lock(CRITICAL_SECTION *l) {
pthread_mutex_lock(l);
}
void Unlock(CRITICAL_SECTION *l) {
pthread_mutex_unlock(l);
}
#endif
void LogV(const char *pszFmt,va_list argp) {
struct tm *now;
struct timeb tb;
if (NULL==pszFmt
[解决办法]
0==pszFmt[0]) return;
_vsnprintf(logstr,MAXLINSIZE,pszFmt,argp);
ftime(&tb);
now=localtime(&tb.time);
sprintf(datestr,"%04d-%02d-%02d",now->tm_year+1900,now->tm_mon+1,now->tm_mday);
sprintf(timestr,"%02d:%02d:%02d",now->tm_hour ,now->tm_min ,now->tm_sec );
sprintf(mss,"%03d",tb.millitm);
printf("%s %s.%s %s",datestr,timestr,mss,logstr);
flog=fopen(logfilename1,"a");
if (NULL!=flog) {
fprintf(flog,"%s %s.%s %s",datestr,timestr,mss,logstr);
if (ftell(flog)>MAXLOGSIZE) {
fclose(flog);
if (rename(logfilename1,logfilename2)) {
remove(logfilename2);
rename(logfilename1,logfilename2);
}
} else {
fclose(flog);
}
}
}
void Log(const char *pszFmt,...) {
va_list argp;
Lock(&cs_log);
va_start(argp,pszFmt);
LogV(pszFmt,argp);
va_end(argp);
Unlock(&cs_log);
}
//Log}
int main(int argc,char * argv[]) {
int i;
#ifdef WIN32
InitializeCriticalSection(&cs_log);
#else
pthread_mutex_init(&cs_log,NULL);
#endif
for (i=0;i<10000;i++) {
Log("This is a Log %04d from FILE:%s LINE:%d\n",i, __FILE__, __LINE__);
}
#ifdef WIN32
DeleteCriticalSection(&cs_log);
#else
pthread_mutex_destroy(&cs_log);
#endif
return 0;
}
