[lwip-users] New RTL-lwIp Release 0.4

[Sergio Pérez]

RTL-lwIP is a TCP/IP stack based on lwIP which gives to RT-Tasks the chance of
communicating via TCP/IP directly with other RT-Tasks or even with Linux user
processes.

RTL-lwIP includes IP, ICMP, UDP and TCP protocols. It provides to RT-Tasks a
socket-like API to communicate over a network. In this software package you'll 
find:

* The TCP/IP stack (IPV4, IPV6, ICMP, UDP, TCP)
* Asynchronous DNS resolver
* Programming examples
* RT-Linux network card driver 3Com905C-X.
* RT-Linux network card driver Realtek8139 (by ByungGi Baek <address@hidden>).


This new release (RTL-lwIP-0.4) solves some problems that RTL-lwIP-0.3 had when
running in RTLinux-3.2-preX. Changes deal with:
 - Changing the Dynamic Memory Allocator with TLSF which is a DM allocator 
suitable for Real-Time systems.
 - Modifying the code of the ethernet drivers:
          Threads registration has been removed.
          Now threads that want to read from  a driver, if there is no
          packet  available, get blocked  until a packet arrives. This
          solution is more compliant with the POSIX standard.
 - The Makefile has been completely rewritten to take into account dependencies.

This new release has been tested with RTLinux-3.2-pre3 and Linux kernel 2.4.21.

The RTL-lwIP home page is:

http://canals.disca.upv.es/~serpeal/RTL-lwIP/htmlFiles/index.html

Send comments to Sergio Perez <address@hidden>



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Sergio Pérez Alcañiz    Mail to: <address@hidden>
WWW: http://canals.disca.upv.es/~serpeal
Departamento de Informática de Sistemas y Computadores
Universidad Politécnica de Valencia
Visit: RTL-lwIP project - A RT-Linux Lightweight TCP/IP stack
WWW: http://canals.disca.upv.es/~serpeal/RTL-lwIP/htmlFiles/index.html
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