Re: what' the flaw in code
Stuart Golodetz <sgolod...@NdOiSaPlA.pMiPpLeExA.ScEom> wrote:
layman wrote:
class Dictionary
{
public :
Dictionary()
{
pthread_mutex_init(&=
mutex_,0)
}
virtual ~Dictionary()
{
pthread_mutex_destro=
y(&mutex_);
}
std::String transalate(std::string word) throw (std::st=
ring)
{
pthread_mutex_lock(&mutex_)=
;
dict.end())
g(word + "not found");
}
std::string transalation =
= dict[MH:word];
pthread_mutex_unlock(&mutex=
_);
return transalation;
}
void addToDictionary (std::string word,std::string
transalation) throw (std::string)
{
pthread_mutex_lock(&mutex_)=
;
if (dict.find(word)!=dict=
..end())
ng(word + "already exits");
}
dict[MH:word]=transalatio=
n;
pthread_mutex_unlock(&mutex=
_);
}
private:
typedef std::map<std::string,std ::string>dictTy=
pe;
dictType dict;
pthread_mutex_t mutex_;
}
Here would like to know.What this class actually intended for?
What is the flaw in the class & what is the fix?
How to improve the perfomance in the concurrent environment,or how to
better perfomance.
what will be the ideal test which can demonstrate perfomance
improvement in the concurrent environment
A hint is to Google for RAII - if you do due diligence, that should help
you figure out the flaw at least. No-one here's going to do your
homework for you :)
Cheers,
Stu
Oh, the OP ran away really fast... the post disappeared from GG in a
couple of minutes, scary group this one, isn't it?
--
FSC
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