[lwip-devel] [bug #48220] TCPIP_CORE_LOCKING should be the default

[Simon Goldschmidt]

URL:
  <http://savannah.nongnu.org/bugs/?48220>

                 Summary: TCPIP_CORE_LOCKING should be the default
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: goldsimon
            Submitted on: Tue 14 Jun 2016 07:30:14 AM GMT
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: 2.0.0 Beta2
            lwIP version: git head

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Details:

LWIP_TCPIP_CORE_LOCKING should perform much better since grabbing a mutex
should be faster than 2 thread context switches on most platforms. Also,
thread priorites help to schedule which task is served first.

However, we should get people to implement a mutex to prevent priority
inversion.

To do this, we could raise an #error if LWIP_COMPAT_MUTEX is 1. (and we should
implement mutexes for our example ports :)




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