[lwip-users] Re: [lwip] conn->sem

[Adam Dunkels]

Hi!

On Tuesday 23 April 2002 08.06, Mumtaz Ahmad wrote:
> Inside netconn_write  conn->sem is always deleted after sending the data
> and recreated when the application requests another chunk to be transmitted
> . It sounds an extra overhead since semaphore creation takes some time .We
> can always delay deleting conn->sem  until the whole data is transmitted.

That sounds like a good idea. The code was written under the assumption that 
semaphore creation is quite quick - perhaps the sys_sem_new() could be 
changed to cache semaphores in some way to make creation quicker?

/adam
-- 
Adam Dunkels <address@hidden>
http://www.sics.se/~adam

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