Re: [Boost-users] [Coroutine] Assertion when coroutine is not run

Subject: Re: [Boost-users] [Coroutine] Assertion when coroutine is not run
From: Brian Ravnsgaard Riis (brian_at_[hidden])
Date: 2014-03-10 04:04:18

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On 2014-03-10 08:26, Oliver Kowalke wrote:
> 2014-03-10 1:37 GMT+01:00 Brian Ravnsgaard Riis
> <brian_at_[hidden] <mailto:brian_at_[hidden]>>:
> 
> [&](coroutine<char>::pull_type& c) { content.push_back(c.get()); 
> while(content.size() != contentLength) { c(); 
> content.push_back(c.get()); } validResult = true; }
> 
> 
> before calling c.get() you should test if a value is available
> from pull_type, e.g. 'if(c)  x=c.get()'

Hi Oliver, thanks for replying.

Maybe I should've mentioned that I only call the push_type if there's
anything left in the buffer:

while(begin != end && !validResult)
{
    parser(*begin++)
}

"parser" is the push_type, obviously; begin and end are iterators into
the buffer I'm parsing. Anyway, I quickly tried to add the check in
the coroutine as well, but that did not change anything. I didn't
expect it to, as *I never call the push_type anyway!*

If I "merge" the above push_type with the one I use for parsing the
message header and just re-use that, then the assertion also does not
trigger. The problem seems to be that the push_type is initialised
with the lambda but then never called.

Will experiment a bit more...

 /Brian
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