[lwip-devel] [patch #8852] Optimize udp_bind code paths

[Axel Lin]

URL:
  <http://savannah.nongnu.org/patch/?8852>

                 Summary: Optimize udp_bind code paths
                 Project: lwIP - A Lightweight TCP/IP stack
            Submitted by: axellin
            Submitted on: Tue 12 Jan 2016 01:22:59 AM GMT
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

[PATCH 1/2] udp_bind: Slightly optimize the rebind code path

udp_pcbs does not have duplicate pcb in the list.
So for a given pcb, it's not possible to match multiple entries in udp_pcbs.
Optimize the code by break out from the for loop once a match is found.

[PATCH 2/2] udp_bind: Optimize the code patch for checking port collision

Move rebind checking earlier then we can optimize the code path for checking
port collision. udp_new_port() already ensures the ephemeral port selected is
unique, so we can avoid the port collision test again for this case.
Just need to check port collision when port != 0 && rebind == 0.



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File Attachments:


-------------------------------------------------------
Date: Tue 12 Jan 2016 01:22:59 AM GMT  Name:
0001-udp_bind-Slightly-optimize-the-rebind-code-path.patch  Size: 2kB   By:
axellin

<http://savannah.nongnu.org/patch/download.php?file_id=35994>
-------------------------------------------------------
Date: Tue 12 Jan 2016 01:22:59 AM GMT  Name:
0002-udp_bind-Optimize-the-code-patch-for-checking-port-c.patch  Size: 4kB  
By: axellin

<http://savannah.nongnu.org/patch/download.php?file_id=35995>

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