Experimental Physics and
Industrial Control System

Hi Andrew,

It think there was some confusion.  Could you test all of the commits on
the 'reuseport' branch in my github repo.

https://github.com/mdavidsaver/epics-base/pull/new/reuseport


On 2/6/20 3:10 PM, Andrew Johnson via Core-talk wrote:
> On 2/6/20 12:28 PM, Michael Davidsaver via Core-talk wrote:
>> My attempt to fix epicsSocketEnableAddressUseForDatagramFanout() on vxWorks (which still needs confirmation)
>> and RTEMS had a side-effect on Linux where it seems that SO_REUSEADDR
>> and SO_REUSEPORT have the same effect, but are not interchangeable.
> Sorry.
> 
> I cherry-picked 8dc131dc4cc04eef3df513a978576442af9405b1 from your branch:
>> iocanj> osiSockTest
>> 1..18
>> ok  1 - osiSockAttach
>> ok  2 - epicsSocketCreate INET, DGRAM, 0
>> ok  3 - setsockopt BROADCAST := 1
>> ok  4 - getsockopt BROADCAST => 1
>> ok  5 - setsockopt BROADCAST := 0
>> ok  6 - getsockopt BROADCAST => 0
>> ok  7 - setsockopt MULTICAST_LOOP := 1
>> ok  8 - getsockopt MULTICAST_LOOP => 1
>> ok  9 - setsockopt MULTICAST_LOOP := 0
>> ok 10 - getsockopt MULTICAST_LOOP => 0
>> ok 11 - setsockopt IP_MULTICAST_TTL := 1
>> ok 12 - getsockopt IP_MULTICAST_TTL => 1
>> ok 13 - setsockopt IP_MULTICAST_TTL := 0
>> not ok 14 - getsockopt IP_MULTICAST_TTL => 1
>> # First test if epicsSocketEnableAddressUseForDatagramFanout() is necessary
>> ok 15 - bind() to port 50463
>> ok 16 - bind() to 50463 error -1, 48
>> # Now the real test
>> ok 17 - bind() to port 50463
>> not ok 18 - bind() to 50463 error -1, 48
>>
>>     Results
>>     =======
>>        Tests: 18
>>       Passed:  16 = 88.89%
>>       Failed:   2 = 11.11%
>> iocanj> puts strerror(48)
>> S_errno_EADDRINUSE
>> value = 10 = 0xa
> 
> Test 14 always fails on VxWorks, I just haven't had time to chase the reason.
> 
> - Andrew
> 
> -- 
> Complexity comes for free, Simplicity you have to work for.
> 

Replies:

Re: Weird CAS hangup on IOC Michael Davidsaver via Core-talk

References:

Weird CAS hangup on IOC Ralph Lange via Core-talk

Re: Weird CAS hangup on IOC Michael Davidsaver via Core-talk

Re: Weird CAS hangup on IOC Andrew Johnson via Core-talk

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