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电梯直达

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发表于 2007-01-09 13:17 |只看该作者 |倒序浏览

线程退出异常错误

我的线程
//**************************************************************
//接收线程
//**************************************************************
void *ServTcp(void *p)
{
int myfd,ret;
myfd = (int)p;
int nBuff;
char szBuffer[MAX_NETBUF],szBuf[8192];
char *psz;

//脱离主线程
pthread_detach(pthread_self());
nBuff = 0;
while(g_nRun == 1) //g_nRun = 1,run.g_nRun=-1,exit
{
ret = recv(myfd, szBuffer, MAX_NETBUF,0);
if (ret == -1)
{
perror("recv");
CloseSock(myfd);
pthread_exit(NULL);
return NULL;
}
szBuffer[ret] = '\0';

//对接收的数据进行缓存处理
strcpy(&szBuf[nBuff], szBuffer);
      psz = MsgRec(szBuf,myfd);
if (psz)
{
nBuff = strlen(psz);
memcpy(szBuf, psz, nBuff);
szBuf[nBuff] = '\0';
}
else
{
nBuff = 0;
//清空该块内存
memset(szBuf,0, sizeof(szBuf));
}
}

printf("exit:ServTcp:[ %x ]\n",myfd);
CloseSock(myfd);
pthread_exit(NULL);
return NULL;
}

*** glibc detected *** ./kserver: free(): invalid next size (fast): 0x0863d9d0 ***
======= Backtrace: =========
/lib/libc.so.6[0x639efd]
/lib/libc.so.6(cfree+0x90)[0x63d550]
/lib/libc.so.6[0x5f8780]
/lib/libc.so.6[0x5f7ff2]
/lib/libc.so.6(dcgettext+0x43)[0x5f7123]
/lib/libc.so.6(__strerror_r+0x119)[0x640299]
/lib/libc.so.6(perror+0x14d)[0x62718d]
./kserver[0x804f299]
/lib/libpthread.so.0[0x7473db]
/lib/libc.so.6(clone+0x5e)[0x6a106e]
======= Memory map: ========
002fd000-00308000 r-xp 00000000 fd:00 1640967 /lib/libgcc_s-4.1.1-20061011.so.1
00308000-00309000 rwxp 0000a000 fd:00 1640967 /lib/libgcc_s-4.1.1-20061011.so.1
005b7000-005d0000 r-xp 00000000 fd:00 1640964 /lib/ld-2.5.so
005d0000-005d1000 r-xp 00018000 fd:00 1640964 /lib/ld-2.5.so
005d1000-005d2000 rwxp 00019000 fd:00 1640964 /lib/ld-2.5.so
005d4000-0070b000 r-xp 00000000 fd:00 1640965 /lib/libc-2.5.so
0070b000-0070d000 r-xp 00137000 fd:00 1640965 /lib/libc-2.5.so
0070d000-0070e000 rwxp 00139000 fd:00 1640965 /lib/libc-2.5.so
0070e000-00711000 rwxp 0070e000 00:00 0
00742000-00755000 r-xp 00000000 fd:00 1640968 /lib/libpthread-2.5.so
00755000-00756000 r-xp 00012000 fd:00 1640968 /lib/libpthread-2.5.so
00756000-00757000 rwxp 00013000 fd:00 1640968 /lib/libpthread-2.5.so
00757000-00759000 rwxp 00757000 00:00 0
00b26000-00b27000 r-xp 00b26000 00:00 0       [vdso]
08048000-08055000 r-xp 00000000 03:06 425988    /home/share/server/src/K3S/kserver
08055000-08056000 rw-p 0000c000 03:06 425988    /home/share/server/src/K3S/kserver
08056000-0805c000 rw-p 08056000 00:00 0
0863d000-086a0000 rw-p 0863d000 00:00 0
b5300000-b5321000 rw-p b5300000 00:00 0
b5321000-b5400000 ---p b5321000 00:00 0
b54bf000-b54d1000 r--p 00000000 fd:00 1021988 /usr/share/locale/zh_CN/LC_MESSAGES/libc.mo
b54d1000-b54d2000 rw-p b54d1000 00:00 0
b54d2000-b54d3000 ---p b54d2000 00:00 0
b54d3000-b5ed3000 rw-p b54d3000 00:00 0
b5ed3000-b5ed4000 ---p b5ed3000 00:00 0
b5ed4000-b68d4000 rw-p b5ed4000 00:00 0
b68d4000-b68d5000 ---p b68d4000 00:00 0
b68d5000-b72d5000 rw-p b68d5000 00:00 0
b72d5000-b72d6000 ---p b72d5000 00:00 0
b72d6000-b7cd7000 rw-p b72d6000 00:00 0
b7cd7000-b7cd8000 r--p 00d28000 fd:00 1022366 /usr/lib/locale/locale-archive
b7cd8000-b7d14000 r--p 00cea000 fd:00 1022366 /usr/lib/locale/locale-archive
b7d14000-b7f14000 r--p 00000000 fd:00 1022366 /usr/lib/locale/locale-archive
b7f14000-b7f15000 rw-p b7f14000 00:00 0
b7f1e000-b7f20000 rw-p b7f1e000 00:00 0
bfce2000-bfda4000 rw-p bfce2000 00:00 0       [stack]
已放弃

我的分机连接一会在断开就会出错。
但是如果是刚刚连接时间不是很久就断开就没是，很奇怪。