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Re: [lwip-users] Problem with sending big buffers to lwip_write and sema
From: |
Kieran Mansley |
Subject: |
Re: [lwip-users] Problem with sending big buffers to lwip_write and semaphoresduring big downloads. |
Date: |
Wed, 11 Apr 2007 10:23:51 +0100 |
On Wed, 2007-04-11 at 10:20 +0200, address@hidden wrote:
> The first problem is sending big buffers to lwip_write. If I send in a
> buffer that are bigger then a ethernet frame (3000 bytes) then LWIP
> will send the first buffer but my second call to write will not work.
Can you describe in what way it doesn't work? Does the lwip_write
function return an error for example?
> The other problem is with semaphores. This is quite a small problems
> as I seems to be able to work around it by streaming smaller amount of
> data. Anyway, If I connect to a server and starts streaming data over
> TCP via LWIP. Then everything works fine until about 100 MB of data
> when our platform assert based on more calls to sys_sem_signalthen to
> sys_arch_sem_wait.
I haven't heard of that particular problem before.
Kieran
- [lwip-users] Problem with sending big buffers to lwip_write and semaphoresduring big downloads., Hans . Forsstrom, 2007/04/11
- Re: [lwip-users] Problem with sending big buffers to lwip_write and semaphoresduring big downloads.,
Kieran Mansley <=
- Re: [lwip-users] Problem with sending big buffers to lwip_writeand semaphoresduring big downloads., Hans . Forsstrom, 2007/04/11
- Re: [lwip-users] Problem with sending big buffers to lwip_writeand semaphoresduring big downloads., Kieran Mansley, 2007/04/11
- Re: [lwip-users] Problem with sending big buffers to lwip_writeandsemaphoresduring big downloads., Hans . Forsstrom, 2007/04/11
- Re: [lwip-users] Problem with sending big buffers to lwip_writeandsemaphoresduring big downloads., Kieran Mansley, 2007/04/11
- Re: [lwip-users] Problem with sending big buffers tolwip_writeandsemaphoresduring big downloads., Hans . Forsstrom, 2007/04/12
- Re: [lwip-users] Problem with sending big buffers tolwip_writeandsemaphoresduring big downloads., Kieran Mansley, 2007/04/12
- Re: [lwip-users] Problem with sending big bufferstolwip_writeandsemaphoresduring big downloads., Hans . Forsstrom, 2007/04/12