c++多线程，程序运行一段时间后主线程还在正常运行，但是子线程自动挂掉了，求解

but2013 2015-09-25 10:04:50
一个简单的udp通信程序，在线程中给服务端发指令，收数据。但是程序运行了10多个小时后，子线程就挂掉了，实在是不知道原因，求大虾指教啊
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赵4老师 2015-09-25
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有时不将“调用函数名字＋各参数值，进入函数后各参数值，中间变量值，退出函数前准备返回的值，返回函数到调用处后函数名字＋各参数值＋返回值”这些信息写日志到文件中是无论如何也发现不了问题在哪里的，包括捕获各种异常、写日志到屏幕、单步或设断点或生成core文件、……这些方法都不行！ 写日志到文件参考下面： 仅供参考：
//循环向a函数每次发送200个字节长度（这个是固定的）的buffer,
//a函数中需要将循环传进来的buffer，组成240字节（也是固定的）的新buffer进行处理，
//在处理的时候每次从新buffer中取两个字节打印
#ifdef WIN32
    #pragma warning(disable:4996)
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#ifdef WIN32
    #include <windows.h>
    #include <process.h>
    #include <io.h>
    #define  MYVOID             void
    #define  vsnprintf          _vsnprintf
#else
    #include <unistd.h>
    #include <sys/time.h>
    #include <pthread.h>
    #define  CRITICAL_SECTION   pthread_mutex_t
    #define  MYVOID             void *
#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);
}
void sleep_ms(int ms) {
    Sleep(ms);
}
#else
void Lock(CRITICAL_SECTION *l) {
    pthread_mutex_lock(l);
}
void Unlock(CRITICAL_SECTION *l) {
    pthread_mutex_unlock(l);
}
void sleep_ms(int ms) {
    usleep(ms*1000);
}
#endif
void LogV(const char *pszFmt,va_list argp) {
    struct tm *now;
    struct timeb tb;

    if (NULL==pszFmt||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}
#define ASIZE    200
#define BSIZE    240
#define CSIZE      2
char Abuf[ASIZE];
char Cbuf[CSIZE];
CRITICAL_SECTION cs_HEX ;
CRITICAL_SECTION cs_BBB ;
struct FIFO_BUFFER {
    int  head;
    int  tail;
    int  size;
    char data[BSIZE];
} BBB;
int No_Loop=0;
void HexDump(int cn,char *buf,int len) {
    int i,j,k;
    char binstr[80];

    Lock(&cs_HEX);
    for (i=0;i<len;i++) {
        if (0==(i%16)) {
            sprintf(binstr,"%03d %04x -",cn,i);
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
        } else if (15==(i%16)) {
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
            sprintf(binstr,"%s  ",binstr);
            for (j=i-15;j<=i;j++) {
                sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
            }
            Log("%s\n",binstr);
        } else {
            sprintf(binstr,"%s %02x",binstr,(unsigned char)buf[i]);
        }
    }
    if (0!=(i%16)) {
        k=16-(i%16);
        for (j=0;j<k;j++) {
            sprintf(binstr,"%s   ",binstr);
        }
        sprintf(binstr,"%s  ",binstr);
        k=16-k;
        for (j=i-k;j<i;j++) {
            sprintf(binstr,"%s%c",binstr,('!'<buf[j]&&buf[j]<='~')?buf[j]:'.');
        }
        Log("%s\n",binstr);
    }
    Unlock(&cs_HEX);
}
int GetFromRBuf(int cn,CRITICAL_SECTION *cs,FIFO_BUFFER *fbuf,char *buf,int len) {
    int lent,len1,len2;

    lent=0;
    Lock(cs);
    if (fbuf->size>=len) {
        lent=len;
        if (fbuf->head+lent>BSIZE) {
            len1=BSIZE-fbuf->head;
            memcpy(buf     ,fbuf->data+fbuf->head,len1);
            len2=lent-len1;
            memcpy(buf+len1,fbuf->data           ,len2);
            fbuf->head=len2;
        } else {
            memcpy(buf     ,fbuf->data+fbuf->head,lent);
            fbuf->head+=lent;
        }
        fbuf->size-=lent;
    }
    Unlock(cs);
    return lent;
}
MYVOID thdB(void *pcn) {
    char        *recv_buf;
    int          recv_nbytes;
    int          cn;
    int          wc;
    int          pb;

    cn=(int)pcn;
    Log("%03d thdB              thread begin...\n",cn);
    while (1) {
        sleep_ms(10);
        recv_buf=(char *)Cbuf;
        recv_nbytes=CSIZE;
        wc=0;
        while (1) {
            pb=GetFromRBuf(cn,&cs_BBB,&BBB,recv_buf,recv_nbytes);
            if (pb) {
                Log("%03d recv %d bytes\n",cn,pb);
                HexDump(cn,recv_buf,pb);
                sleep_ms(1);
            } else {
                sleep_ms(1000);
            }
            if (No_Loop) break;//
            wc++;
            if (wc>3600) Log("%03d %d==wc>3600!\n",cn,wc);
        }
        if (No_Loop) break;//
    }
#ifndef WIN32
    pthread_exit(NULL);
#endif
}
int PutToRBuf(int cn,CRITICAL_SECTION *cs,FIFO_BUFFER *fbuf,char *buf,int len) {
    int lent,len1,len2;

    Lock(cs);
    lent=len;
    if (fbuf->size+lent>BSIZE) {
        lent=BSIZE-fbuf->size;
    }
    if (fbuf->tail+lent>BSIZE) {
        len1=BSIZE-fbuf->tail;
        memcpy(fbuf->data+fbuf->tail,buf     ,len1);
        len2=lent-len1;
        memcpy(fbuf->data           ,buf+len1,len2);
        fbuf->tail=len2;
    } else {
        memcpy(fbuf->data+fbuf->tail,buf     ,lent);
        fbuf->tail+=lent;
    }
    fbuf->size+=lent;
    Unlock(cs);
    return lent;
}
MYVOID thdA(void *pcn) {
    char        *send_buf;
    int          send_nbytes;
    int          cn;
    int          wc;
    int           a;
    int          pa;

    cn=(int)pcn;
    Log("%03d thdA              thread begin...\n",cn);
    a=0;
    while (1) {
        sleep_ms(100);
        memset(Abuf,a,ASIZE);
        a=(a+1)%256;
        if (16==a) {No_Loop=1;break;}//去掉这句可以让程序一直循环直到按Ctrl+C或Ctrl+Break或当前目录下存在文件No_Loop
        send_buf=(char *)Abuf;
        send_nbytes=ASIZE;
        Log("%03d sending %d bytes\n",cn,send_nbytes);
        HexDump(cn,send_buf,send_nbytes);
        wc=0;
        while (1) {
            pa=PutToRBuf(cn,&cs_BBB,&BBB,send_buf,send_nbytes);
            Log("%03d sent %d bytes\n",cn,pa);
            HexDump(cn,send_buf,pa);
            send_buf+=pa;
            send_nbytes-=pa;
            if (send_nbytes<=0) break;//
            sleep_ms(1000);
            if (No_Loop) break;//
            wc++;
            if (wc>3600) Log("%03d %d==wc>3600!\n",cn,wc);
        }
        if (No_Loop) break;//
    }
#ifndef WIN32
    pthread_exit(NULL);
#endif
}
int main() {
#ifdef WIN32
    InitializeCriticalSection(&cs_log);
    InitializeCriticalSection(&cs_HEX );
    InitializeCriticalSection(&cs_BBB );
#else
    pthread_t threads[2];
    int threadsN;
    int rc;
    pthread_mutex_init(&cs_log,NULL);
    pthread_mutex_init(&cs_HEX,NULL);
    pthread_mutex_init(&cs_BBB,NULL);
#endif
    Log("Start===========================================================\n");

    BBB.head=0;
    BBB.tail=0;
    BBB.size=0;

#ifdef WIN32
    _beginthread((void(__cdecl *)(void *))thdA,0,(void *)1);
    _beginthread((void(__cdecl *)(void *))thdB,0,(void *)2);
#else
    threadsN=0;
    rc=pthread_create(&(threads[threadsN++]),NULL,thdA,(void *)1);if (rc) Log("%d=pthread_create %d error!\n",rc,threadsN-1);
    rc=pthread_create(&(threads[threadsN++]),NULL,thdB,(void *)2);if (rc) Log("%d=pthread_create %d error!\n",rc,threadsN-1);
#endif

    if (!access("No_Loop",0)) {
        remove("No_Loop");
        if (!access("No_Loop",0)) {
            No_Loop=1;
        }
    }
    while (1) {
        sleep_ms(1000);
        if (No_Loop) break;//
        if (!access("No_Loop",0)) {
            No_Loop=1;
        }
    }
    sleep_ms(3000);
    Log("End=============================================================\n");
#ifdef WIN32
    DeleteCriticalSection(&cs_BBB );
    DeleteCriticalSection(&cs_HEX );
    DeleteCriticalSection(&cs_log);
#else
    pthread_mutex_destroy(&cs_BBB);
    pthread_mutex_destroy(&cs_HEX);
    pthread_mutex_destroy(&cs_log);
#endif
    return 0;
}
QIUSQJF 2015-09-25
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while (hThrd != NULL)
{
   CloseHandle(hThrd);
   EnterCriticalSection(&g_lock);
   WriteToLog("清除上个线程空间");
   LeaveCriticalSection(&g_lock);
}
你这个while什么意思？你后面CloseHandle了，但是并不一定这个hThrd就成为NULL了吧，而且一般没有显示的hThrd = NULL,这个值还是原始的值，也就是类似野指针了……
Pokeeeer 2015-09-25
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回去看log吧。。。
but2013 2015-09-25
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来人啊 ！！！！！！！
but2013 2015-09-25
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#include <WinSock2.h>

#include <time.h>

#include <Windows.h>

#include <tchar.h>

#include <process.h>

#include <iostream>



using namespace std;



#pragma comment(lib,"ws2_32.lib")

char g_szLogFile[1024];

CRITICAL_SECTION g_lock;



int WriteToLog(char* str)

{

	printf("debug info = %s \n",str);

	FILE* log;

	log = fopen(g_szLogFile, "a+");

	if (log == NULL)

		return -1;



	fseek(log,0,SEEK_END);

	LONG64 size = ftell(log);

	fseek(log,0,SEEK_SET);



	if (size > 1024*1024*50)

	{

		fclose(log);



		log = fopen(g_szLogFile, "w");

		if (log == NULL)

			return -1;

	}

	time_t t = time(0);

	char tmp[64] = {0 };

	strftime(tmp, sizeof(tmp), "%Y/%m/%d %X %A ", localtime(&t));



	fprintf(log, "%s:%s\n", tmp,str);

	fclose(log);

	return 0;

}



typedef struct __INFO

{

	SOCKET m_sendsock;

	SOCKET m_recvsock;

	SOCKADDR_IN	m_addrServer;

	char path[1024];

}Info;





void run(void* param)

{

	Info* pInfo = (Info *)param;



	SOCKET m_sendsock = pInfo->m_sendsock;

	SOCKET m_recvsock = pInfo->m_recvsock;

	SOCKADDR_IN	m_addrServer = pInfo->m_addrServer;

	char sendBuf[10] ;

	int ret = 0;

	SOCKADDR_IN saClient;



	char cRecvBuff[50] = {0};

	int nSize = sizeof (SOCKADDR_IN);

	int nbSize = 0;

	int iValue = 0;

	char t[50];

	memset(sendBuf,0,sizeof(sendBuf));



	strcpy(sendBuf,"M4S00");





		ret = connect(m_sendsock,(struct sockaddr *)&m_addrServer,sizeof(m_addrServer));



		if (ret != 0)

		{

			char buf[1200]= { 0};

			sprintf (buf," 对方服务器关闭,connect error  ret = %d",ret);

			EnterCriticalSection(&g_lock);

			WriteToLog(buf);

			LeaveCriticalSection(&g_lock);

			return ;

		}



		if ( strlen(sendBuf) != sendto(m_sendsock, sendBuf, strlen(sendBuf),0, (SOCKADDR*)&m_addrServer, sizeof(SOCKADDR)))

		{

			EnterCriticalSection(&g_lock);

			WriteToLog(" sendto 失败");

			LeaveCriticalSection(&g_lock);



			return ;

		}

		memset(&saClient,0,sizeof(saClient));

		//char cRecvBuff[800] = {0};

		memset(cRecvBuff,0,sizeof(cRecvBuff));

	    nSize = sizeof (SOCKADDR_IN);



		//WriteToLog(" recvfrom wait");

	    nbSize=recvfrom (m_recvsock,cRecvBuff,800,0,(SOCKADDR FAR *) &saClient,&nSize); //若接收失败则提示错误

		//WriteToLog(" recvfrom end");

		

		if (nbSize <=0 )

		{

			EnterCriticalSection(&g_lock);

			WriteToLog("recvfrom error");

			LeaveCriticalSection(&g_lock);



			return ;

		}



	    iValue = 0;

		if( cRecvBuff[10] & 0x01) //10

		{

			iValue = 1;

		}

		//char t[256];

		memset(t,0,sizeof(t));

		sprintf(t, "%d", iValue);

		EnterCriticalSection(&g_lock);

		::WritePrivateProfileString(TEXT("ACE"), TEXT("Value"),t, pInfo->path);

		LeaveCriticalSection(&g_lock);

 		Sleep(1000);

}



void pthread(void* param)

{

	int count = 0;

	EnterCriticalSection(&g_lock);

	WriteToLog("服务开启成功");

	LeaveCriticalSection(&g_lock);

	while (1)

	{

		Sleep(1000);

		run(param);

		count++;

		if (count%300 == 0)

		{

			EnterCriticalSection(&g_lock);

			WriteToLog("运行了10分钟");

			LeaveCriticalSection(&g_lock);

			count = 0;

		}

	}

	EnterCriticalSection(&g_lock);

	WriteToLog("线程死掉");

	LeaveCriticalSection(&g_lock);

	

}



int main(void)

{

	int m_iPort;

	SOCKET m_sendsock;

	SOCKET m_recvsock;

	SOCKADDR_IN	m_addrServer;





	char szFilePath[MAX_PATH + 1]={0};  

	GetModuleFileNameA(NULL, szFilePath, MAX_PATH);  

	(strrchr(szFilePath, '\\'))[0] = 0; // 删除文件名，只获得路径字串  

	string path = szFilePath; 

	path += "\\configure.ini";



	GetPrivateProfileString(_T("CONFIGURE"), _T("LOGFILE "),NULL, g_szLogFile, sizeof(g_szLogFile),path.c_str());

	char szport[50] = {};

	char szip[50]={};

	char szpath[50] ={};

	GetPrivateProfileString(_T("CONFIGURE"), _T("PORT "),NULL, szport, sizeof(szport),path.c_str());

	GetPrivateProfileString(_T("CONFIGURE"), _T("IP "),NULL, szip, sizeof(szip),path.c_str());

	GetPrivateProfileString(_T("CONFIGURE"), _T("Path"),NULL, szpath, sizeof(szpath),path.c_str());



	char buf[1024]= {0};

	sprintf(buf,"读取的配置路径: %s",szFilePath);

	WriteToLog(buf);



	memset(buf,0,sizeof(buf));

	sprintf(buf,"读取的对方服务器ip: %s",szip);

	WriteToLog(buf);



	memset(buf,0,sizeof(buf));

	sprintf(buf,"读取的自己的配置端口号: %s",szport);

	WriteToLog(buf);



	m_iPort = atoi(szport);



	WSADATA wsaData;   //指向WinSocket信息结构的指针

	if(WSAStartup(MAKEWORD(1,1), &wsaData)!=0)//进行WinSocket的初始化

	{

		WSACleanup();

	}



	if( ( m_sendsock = socket(AF_INET, SOCK_DGRAM, 0) ) == INVALID_SOCKET )

	{

		WriteToLog( "创建套接字失败!" );

		WSACleanup( );

		return -1;

	}



	if( ( m_recvsock = socket(AF_INET, SOCK_DGRAM, 0) ) == INVALID_SOCKET )

	{

		WriteToLog( "创建套接字失败!" );

		WSACleanup( );

		return -1;

	}

	SOCKADDR_IN sin;

	sin.sin_family = AF_INET;

	sin.sin_port = htons(m_iPort);             

	sin.sin_addr.s_addr = htonl(INADDR_ANY);





	int val = 1;



	if(setsockopt(m_recvsock,SOL_SOCKET,SO_REUSEADDR,(char*)&val,sizeof(val)) != 0)

	{



		WriteToLog(" setsockopt error");

		return -1;

	}



	if( bind(m_recvsock, (SOCKADDR FAR *)&sin, sizeof(sin)) == -1)

	{

		WriteToLog(" 绑定失败");

		return -1;

	}

	//bind(m_sendsock, (SOCKADDR FAR *)&sin, sizeof(sin));     //???

	m_addrServer.sin_family = AF_INET;

	m_addrServer.sin_addr.s_addr = inet_addr(szip);

	m_addrServer.sin_port = htons(18003);

	

	Info param;

	memset(¶m,0,sizeof(param));

	

	param.m_addrServer = m_addrServer;

	param.m_recvsock = m_recvsock;

	param.m_sendsock = m_sendsock;

	strcpy(param.path,path.c_str());



	InitializeCriticalSection(&g_lock);

	HANDLE hThrd = (HANDLE)_beginthread(pthread,0,(void*)¶m);

	long nCode = STILL_ACTIVE;

	while(1)

	{

		Sleep(2000);

		if(true != GetExitCodeThread(hThrd,(LPDWORD)&nCode))

		{

			EnterCriticalSection(&g_lock);

			WriteToLog("GetExitCodeThread error");

			LeaveCriticalSection(&g_lock);

			MessageBox(NULL,TEXT("程序开启出错，请重新开启"),TEXT("ERROR"),MB_OK);

			break;

		}

		else

		{

			if (nCode != STILL_ACTIVE )

			{

				while (hThrd != NULL)

				{

				   CloseHandle(hThrd);

				   EnterCriticalSection(&g_lock);

				   WriteToLog("清除上个线程空间");

				   LeaveCriticalSection(&g_lock);

				}

			  nCode = STILL_ACTIVE;

			  hThrd = (HANDLE)_beginthread(pthread,0,(void*)¶m);

			  EnterCriticalSection(&g_lock);

			  WriteToLog("重新开启线程");

			  LeaveCriticalSection(&g_lock);



			}

		}

	}



	return 0;

}
but2013 2015-09-25
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下面附上代码 #include <WinSock2.h> #include <time.h> #include <Windows.h> #include <tchar.h> #include <process.h> #include <iostream> using namespace std; #pragma comment(lib,"ws2_32.lib") char g_szLogFile[1024]; CRITICAL_SECTION g_lock; int WriteToLog(char* str) { printf("debug info = %s \n",str); FILE* log; log = fopen(g_szLogFile, "a+"); if (log == NULL) return -1; fseek(log,0,SEEK_END); LONG64 size = ftell(log); fseek(log,0,SEEK_SET); if (size > 1024*1024*50) { fclose(log); log = fopen(g_szLogFile, "w"); if (log == NULL) return -1; } time_t t = time(0); char tmp[64] = {0 }; strftime(tmp, sizeof(tmp), "%Y/%m/%d %X %A ", localtime(&t)); fprintf(log, "%s:%s\n", tmp,str); fclose(log); return 0; } typedef struct __INFO { SOCKET m_sendsock; SOCKET m_recvsock; SOCKADDR_IN m_addrServer; char path[1024]; }Info; void run(void* param) { Info* pInfo = (Info *)param; SOCKET m_sendsock = pInfo->m_sendsock; SOCKET m_recvsock = pInfo->m_recvsock; SOCKADDR_IN m_addrServer = pInfo->m_addrServer; char sendBuf[10] ; int ret = 0; SOCKADDR_IN saClient; char cRecvBuff[50] = {0}; int nSize = sizeof (SOCKADDR_IN); int nbSize = 0; int iValue = 0; char t[50]; memset(sendBuf,0,sizeof(sendBuf)); strcpy(sendBuf,"M4S00"); ret = connect(m_sendsock,(struct sockaddr *)&m_addrServer,sizeof(m_addrServer)); if (ret != 0) { char buf[1200]= { 0}; sprintf (buf," 对方服务器关闭,connect error ret = %d",ret); EnterCriticalSection(&g_lock); WriteToLog(buf); LeaveCriticalSection(&g_lock); return ; } if ( strlen(sendBuf) != sendto(m_sendsock, sendBuf, strlen(sendBuf),0, (SOCKADDR*)&m_addrServer, sizeof(SOCKADDR))) { EnterCriticalSection(&g_lock); WriteToLog(" sendto 失败"); LeaveCriticalSection(&g_lock); return ; } memset(&saClient,0,sizeof(saClient)); //char cRecvBuff[800] = {0}; memset(cRecvBuff,0,sizeof(cRecvBuff)); nSize = sizeof (SOCKADDR_IN); //WriteToLog(" recvfrom wait"); nbSize=recvfrom (m_recvsock,cRecvBuff,800,0,(SOCKADDR FAR *) &saClient,&nSize); //若接收失败则提示错误 //WriteToLog(" recvfrom end"); if (nbSize <=0 ) { EnterCriticalSection(&g_lock); WriteToLog("recvfrom error"); LeaveCriticalSection(&g_lock); return ; } iValue = 0; if( cRecvBuff[10] & 0x01) //10 { iValue = 1; } //char t[256]; memset(t,0,sizeof(t)); sprintf(t, "%d", iValue); EnterCriticalSection(&g_lock); ::WritePrivateProfileString(TEXT("ACE"), TEXT("Value"),t, pInfo->path); LeaveCriticalSection(&g_lock); Sleep(1000); } void pthread(void* param) { int count = 0; EnterCriticalSection(&g_lock); WriteToLog("服务开启成功"); LeaveCriticalSection(&g_lock); while (1) { Sleep(1000); run(param); count++; if (count%300 == 0) { EnterCriticalSection(&g_lock); WriteToLog("运行了10分钟"); LeaveCriticalSection(&g_lock); count = 0; } } EnterCriticalSection(&g_lock); WriteToLog("线程死掉"); LeaveCriticalSection(&g_lock); } int main(void) { int m_iPort; SOCKET m_sendsock; SOCKET m_recvsock; SOCKADDR_IN m_addrServer; char szFilePath[MAX_PATH + 1]={0}; GetModuleFileNameA(NULL, szFilePath, MAX_PATH); (strrchr(szFilePath, '\\'))[0] = 0; // 删除文件名，只获得路径字串 string path = szFilePath; path += "\\configure.ini"; GetPrivateProfileString(_T("CONFIGURE"), _T("LOGFILE "),NULL, g_szLogFile, sizeof(g_szLogFile),path.c_str()); char szport[50] = {}; char szip[50]={}; char szpath[50] ={}; GetPrivateProfileString(_T("CONFIGURE"), _T("PORT "),NULL, szport, sizeof(szport),path.c_str()); GetPrivateProfileString(_T("CONFIGURE"), _T("IP "),NULL, szip, sizeof(szip),path.c_str()); GetPrivateProfileString(_T("CONFIGURE"), _T("Path"),NULL, szpath, sizeof(szpath),path.c_str()); char buf[1024]= {0}; sprintf(buf,"读取的配置路径: %s",szFilePath); WriteToLog(buf); memset(buf,0,sizeof(buf)); sprintf(buf,"读取的对方服务器ip: %s",szip); WriteToLog(buf); memset(buf,0,sizeof(buf)); sprintf(buf,"读取的自己的配置端口号: %s",szport); WriteToLog(buf); m_iPort = atoi(szport); WSADATA wsaData; //指向WinSocket信息结构的指针 if(WSAStartup(MAKEWORD(1,1), &wsaData)!=0)//进行WinSocket的初始化 { WSACleanup(); } if( ( m_sendsock = socket(AF_INET, SOCK_DGRAM, 0) ) == INVALID_SOCKET ) { WriteToLog( "创建套接字失败!" ); WSACleanup( ); return -1; } if( ( m_recvsock = socket(AF_INET, SOCK_DGRAM, 0) ) == INVALID_SOCKET ) { WriteToLog( "创建套接字失败!" ); WSACleanup( ); return -1; } SOCKADDR_IN sin; sin.sin_family = AF_INET; sin.sin_port = htons(m_iPort); sin.sin_addr.s_addr = htonl(INADDR_ANY); int val = 1; if(setsockopt(m_recvsock,SOL_SOCKET,SO_REUSEADDR,(char*)&val,sizeof(val)) != 0) { WriteToLog(" setsockopt error"); return -1; } if( bind(m_recvsock, (SOCKADDR FAR *)&sin, sizeof(sin)) == -1) { WriteToLog(" 绑定失败"); return -1; } //bind(m_sendsock, (SOCKADDR FAR *)&sin, sizeof(sin)); //??? m_addrServer.sin_family = AF_INET; m_addrServer.sin_addr.s_addr = inet_addr(szip); m_addrServer.sin_port = htons(18003); Info param; memset(¶m,0,sizeof(param)); param.m_addrServer = m_addrServer; param.m_recvsock = m_recvsock; param.m_sendsock = m_sendsock; strcpy(param.path,path.c_str()); InitializeCriticalSection(&g_lock); HANDLE hThrd = (HANDLE)_beginthread(pthread,0,(void*)¶m); long nCode = STILL_ACTIVE; while(1) { Sleep(2000); if(true != GetExitCodeThread(hThrd,(LPDWORD)&nCode)) { EnterCriticalSection(&g_lock); WriteToLog("GetExitCodeThread error"); LeaveCriticalSection(&g_lock); MessageBox(NULL,TEXT("程序开启出错，请重新开启"),TEXT("ERROR"),MB_OK); break; } else { if (nCode != STILL_ACTIVE ) { while (hThrd != NULL) { CloseHandle(hThrd); EnterCriticalSection(&g_lock); WriteToLog("清除上个线程空间"); LeaveCriticalSection(&g_lock); } nCode = STILL_ACTIVE; hThrd = (HANDLE)_beginthread(pthread,0,(void*)¶m); EnterCriticalSection(&g_lock); WriteToLog("重新开启线程"); LeaveCriticalSection(&g_lock); } } } return 0; }
QIUSQJF 2015-09-25
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char cRecvBuff[50] = {0};
nbSize=recvfrom (m_recvsock,cRecvBuff,800,0,(SOCKADDR FAR *) &saClient,&nSize); //若接收失败则提示错误
缓冲区才50，你要收800~不知道你想干嘛.....
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