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Re: [sc-users] 'Host not found' after OS upgrade
hi scott :-)
it seems two things mix here -
calls to NetAddr:isLocal (actually matchLangIP) being broken,
and depending on the semi-random order of initClassTree,
the Startup sequence sometimes tripping over that,
leaving SC in mostly unusable state.
Reproducer for NetAddr:isLocal is trivial:
// both of these returns the class NetAddr, not a boolean:
Server.local.addr.isLocal;
Server.internal.addr.isLocal;
Reproducer for the long error
resolve: Host not found (authoritative)
ERROR: Non Boolean in test.
is trickier: it depends on the the semi-random order in which
Class.initClassTree inits classes.
Sometimes it hangs there directly when starting SC 3.7.0a,
sometimes after 5-10 recompiles while working on classes or
help files, after installing more quarks, but I have no simple reproducer.
To track down where in the sequence it happens,
I've added a post to initClassTree to see the actual order;
and that order does seem to change when you change classes,
install quarks etc.
*initClassTree { arg aClass;
var implementsInitClass;
// sometimes you need a class to be inited before another class
// start the process: Class.initClassTree(Object)
if(classesInited.isNil, { classesInited = IdentitySet.new });
if(classesInited.includes(aClass).not, {
if(aClass.isMetaClass.not and: { aClass.class.findMethod(\initClass).notNil }, {
("-----> initClassTree: " + aClass + "...?").postln;
aClass.initClass;
("-----> initClassTree: " + aClass + "OK.").postln;
});
classesInited.add(aClass);
if(aClass.subclasses.notNil,{
aClass.subclasses.do({ arg class; this.initClassTree(class); });
});
});
}
thanks for taking that up!
best, adc
On 27/12/2013, at 12:37 , Scott Wilson <i@xxxxxxxxxxxxxx> wrote:
> I have an idea about this, but I don't see it myself. Can either of you suggest a reproducer?
>
> S.
>
> On 26 Dec 2013, at 21:47, adc <alberto.decampo@xxxxxxxxx> wrote:
>
>> Hi,
>>
>> I am seeing this on OSX 10.8.5 as well, so it is not linux specific.
>> Logging out and logging back in seems to help, but it keeps coming
>> back after several recompiles.
>>
>> I tried overwriting the NetAddr:isLocal like this:
>>
>> *matchLangIP { |ipstring|
>> ^ipstring == "127.0.0.1";
>> }
>>
>> // *matchLangIP {|ipstring|
>> // _MatchLangIP
>> // }
>>
>> but strangely, I still get the same error.
>>
>> best, adc
>>
>>
>> On 26/12/2013, at 19:32 , Phil Thomson <supercollider@xxxxxxxxxxxxxx> wrote:
>>
>>> On Wed, 25 Dec 2013 08:45:45 +0800
>>> James Harkins <jamshark70@xxxxxxxxx> wrote:
>>>
>>>> On Dec 25, 2013 4:12 AM, "Phil Thomson" <supercollider@xxxxxxxxxxxxxx>
>>>> wrote:
>>>>> compile done
>>>>> resolve: Host not found (authoritative)
>>>>> ERROR: Non Boolean in test.
>>>>> RECEIVER:
>>>>> class NetAddr (0x39fe700) {
>>>>
>>>> I don't know the solution, but I think this is what's happening.
>>>>
>>>> The test that's failing is here, in Server:
>>>>
>>>> newScopeBufferAllocators {
>>>> if (isLocal)
>>>>
>>>> The isLocal variable gets set in Server's init method: "isLocal =
>>>> inProcess || { addr.isLocal };" which leads to NetAddr:
>>>>
>>>> isLocal { ^this.class.matchLangIP(this.ip) }
>>>>
>>>> *matchLangIP {|ipstring|
>>>> _MatchLangIP
>>>> }
>>>>
>>>> This primitive should return a boolean or throw a descriptive error,
>>>> but instead, under this rare case, it simply returns the class
>>>> itself, which is how NetAddr got into the "if" test.
>>>>
>>>> If the SC code were fixed, though, you'd still have the "Host not
>>>> found" problem, which depends on something in the OS. I'm afraid I
>>>> haven't much time to look into that today, but I'm quite sure you'll
>>>> have other problems with SC (maybe with networking in general)
>>>> without dealing with this issue (and I don't believe it's an SC
>>>> configuration problem).
>>>>
>>>> hjh
>>>
>>> Not sure what my next step is. Should I contact the CCRMA folks? Is
>>> this an OS bug?
>>>
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>>
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