关闭没有网络连接的套接字时，未释放数据包堆

嗨，我一直在尝试找到这个问题的答案，但是没有乐趣，希望解决的办法是我忽略的。这个问题只发生在我没有网络连接的时候。我的PIC32 MX尝试用TeCPPIPTCPPclipse打开函数连接到网络上的另一个设备。它被分配给套接字，它的状态变成TCPIPpTCPYSTATEY-clitNo.WItiTY连接。套接字包上的TCPIpMaCMAKPKTYFRAGEL排队标志是SATAS，套接字从不连接到网络I，然后使用TCPIPPUTCPY关闭功能关闭套接字，除了分组存储器W以外，所有的内存都被释放了。HICH大约是200字节。如果我尝试了足够的连接，堆最终会用完，并且我不能再做任何其他的TCP连接。我发现内存不被释放的原因是因为TCPIpMaCypKtfFraveQualdBayes标志。在TXSKTFLeLoCKEDV4PKT函数中的一条逻辑声明它将被释放，但是这个确认永远不会到来。我发现这2个方法是，如果PIC32 MX没有连接到网络，或者手动删除TCPIPSIMACYPKPKTFLAG队列，则不尝试连接。关闭Socket之前的d标志。但是，如果网络连接不够好，我的代码在网络瘫痪时尝试连接，我想用一种干净的方式释放不依赖于解决方案功能的资源。有人以前遇到过这种情况吗？因为我没有发现任何与这个问题有关的东西，我猜我已经错过了一些显而易见的东西。任何帮助都会被赏识的。我用的是V109的和声。谢谢，保罗。



      以下为原文

    Hi,
I've been trying to find an answer to this problem but have had no joy and hope the solution is something I've overlooked.

This problem only occurs when I have no network connection.
My pic32MX is trying to connect to another device on the network using the TCPIP_TCP_ClientOpen function.
The memory is allocated to the socket and its state becomes TCPIP_TCP_STATE_CLIENT_WAIT_CONNECT
The TCPIP_MAC_PKT_FLAG_QUEUED flag on the socket packet is set
As the socket never connects to the network I then close the socket using the TCPIP_TCP_Close function
All memory is freed except for the packet memory, which is roughly 200 bytes. If I attempt enough connections the heap eventually becomes used up and I can no longer make any further TCP connections.

The reason I found for the memory not being freed is due to the TCPIP_MAC_PKT_FLAG_QUEUED flag. A piece of logic in the _TxSktFreeLockedV4Pkt function states it will be freed by the acknowledge, but this acknowledge never comes.

The 2 ways I've found round this is either not to attempt a connection if the pic32MX is not connected to the network, or manually removing the TCPIP_MAC_PKT_FLAG_QUEUED flag prior to closing the socket. However if the network connection is poor enough that my code does try a connection when the network is down I would like a clean way to free up the resources that doesn't rely on a workaround function.

Has anyone come up against this before? As I haven't found anything related to this problem my guess is I've missed something obvious. Any help would be appreciated.

I'm using a v1_09 of HARMony.

Thanks,

Paul