各位专家：大家好！
我采用hua例程实现TCP通讯时，在接收TCP数据时遇到一问题，花了几天时间也没解决。希望能百忙中帮忙看看。
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问题描述：上位机做为TCP通信的客户端，在与开发板建立起TCP通信后，不断向开发板发送一个几兆大小的数据包，测试发现，在通信频繁的情况下几乎不出错，但如果停止通信几分钟后，再次通信，则必然会发现数据接收不全的情况（即丢包情况）。
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Hua例程中我的接收函数：
while (1) {
timeout.tv_sec = 1;
timeout.tv_usec = 0;
setsockopt(s,SOL_SOCKET,SO_RCVTIMEO,&timeout,sizeof(timeout));
while(1){
bytes = (int)recv( s, (void *) &ctlField, sizeof(CONTROL_FIELD), 0);//ctlField结构体长度为8个字节
if(bytes > 0){
total = 0;
count = 0;
while(total < ctlField.bLength){
count = (int)recv( s, (void *)(*(BigMem + ctlField.bCoreId) + total), ctlField.bLength - total, MSG_WAITALL);
if(count >= 0 ){
total += count;
mark = 0;
}
else{
mark++;
if(mark > 5){
printf("mark > 5,count = %d, total = %d\n",count,total);
break;
}
continue;
}
}
printf("count = %d,\ttotal = %d\n",count,total);
}
}
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运行的结果：
[C66xx_0] Start BIOS 6
[C66xx_0] QMSS successfully initialized
[C66xx_0] CPPI successfully initialized
[C66xx_0] PA successfully initialized
[C66xx_0] HUA version 2.00.00.04
[C66xx_0] Setting hostname to tidemo-CE5330
[C66xx_0] MAC Address: 90-D7-EB-0C-A9-1B
[C66xx_0] EVM in StaticIP mode at 192.168.2.100
[C66xx_0] Set IP address of PC to 192.168.2.101
[C66xx_0] PASS successfully initialized
[C66xx_0] Ethernet subsystem successfully initialized
[C66xx_0] Ethernet eventId : 48 and vectId (Interrupt) : 7
[C66xx_0] Registration of the EMAC Successful, waiting for link up ..
[C66xx_0] Network Added: If-1:192.168.2.100
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] count = 4991129, total = 4991129
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] count = 4300038, total = 4300038
[C66xx_0] mark > 5,count = -1, total = 1452
[C66xx_0] count = -1, total = 1452
其中倒数第二行是停止TCP通信几分钟后再次通信的结果，当时上位机传输的是4300038个字节的数据包，可实际只收到1452个字节的数据包（8字节的结构体包头除外）。
