[lwip-users] Project based on lwip - design strategies (raw vs. sequential)

[Marko Panger]

Hi all,

I'm new to lwip stack and I'm climbing the learning curve. I plan to use 
the stack to send data to a server (and receive some) over a gprs 
connection. I have my own preemptive RTOS based environment and my 
platform is based around an ARM7 with 32kb of RAM. Flash is not a problem.

I'm a little bit confused on which interface to use for my application. 
As I understand RAW api gives more performance in terms of throughput 
wile sequential API is more application developer friendly. However 
throughput is not critical for my application so using sequential api 
seems more appropriate for me.

1) I presume RAW api is well tested as represents the lwip core. Is also 
sequential api tested, reliable and widely used ?

2) As I can see there are two sequential API interfaces. One is 
"netconn" an the other is "sockets". What's the difference ? I'm a 
little bit familiar with socket programming but I have no idea what 
"netconn" is. Please excuse my ignorance here as I might be asking 
nonsenses here.

3) Which version do you suggest. Should I go with 1.2 or use a CVS 
snapshot ? Comparing the sources it seems the major difference was in 
"sequential api" sources.

Thank you in advace for your comments !

Marko