c++11 - std::atomic_bool not being initialized/read correctly -


i had problem starting , stopping background threads based on value of boolean flag. had asked here , got detailed answer here.

however, after using solution few days, seems me there wrong it. launch worker thread in someobject::dorun called in someobject::start should work in loop , quit when call someobject::stop:

struct someobject {   someobject() { setdone(true); }   std::atomic_bool done_;   void dorun();   void setdone(bool v) { done_store(v); }   bool isdone() { return done_.load(); }   void start() {        if (isdone()) {            setdone(false);            dorun();        }   void stop() { setdone(true); } };

however, seems check isdone() in start() returns false , dorun() never gets called though have set done true in constructor.

the reason set done_ true in constructor , set false in start() want call start()/stop() repeatedly on same object.

what doing wrong here?


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