Re: [lwip-users] recv function BLOCK because recv_mbox is full: can yougive me a solution?

[Jonathan Larmour]

Bikram Chatterjee wrote:
> Consider in your case, if your driver produces 9 packets (8 is the max
> size of all mailboxes) in time, in which application can consume only
> one packet. The following scenario occurs:
> 1. After consuming one buffer-full application goes for the second time.
> 2. By that time driver have already posted 8 messages in mbox and
> blocking for 9th packet.
> 3. Application can not post anymore callbacks in mbox as it is already
> full and waiting on mbox.
> 4. tcpip_thread has already posted 8 messages into recvmbox and has
> 9th message in hand from driver to post in recvmbox and blocked.

Was this with an older version of lwIP? Current lwIP (i.e. 1.3.0rc1 and 
CVS) uses sys_mbox_trypost to post to the recvmbox so the tcpip thread 
should never block doing this.

Jifl
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