The variables "[fReopenDebugLog](https://github.com/bitcoin/bitcoin/blob/fa24439ff3d8ab5b9efaf66ef4dae6713b88cb35/src/util.h#L53)" and "[fRequestShutdown](https://github.com/bitcoin/bitcoin/blob/fae78fa81802b5387054715c339f286ef436408e/src/init.cpp#L128)" should [use the data type "sig_atomic_t"](https://www.securecoding.cert.org/confluence/display/c/SIG31-C.+Do+not+access+shared+objects+in+signal+handlers) (instead of "bool").

I reported this issue for [another evolving software](https://github.com/Electric-Coin-Company/zcash/issues/678) before.

{
public:
    CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {}
    bool GetCoins(const uint256 &txid, CCoins &coins) const {
        try {
            return CCoinsViewBacked::GetCoins(txid, coins);
        } catch(const std::runtime_error& e) {
            uiInterface.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR);
            LogPrintf("Error reading from database: %s\n", e.what());
            
            
            
            
            abort();
        }
    }
    
};
static CCoinsViewDB *pcoinsdbview = NULL;
static CCoinsViewErrorCatcher *pcoinscatcher = NULL;
static boost::scoped_ptr<ECCVerifyHandle> globalVerifyHandle;
void Interrupt(boost::thread_group& threadGroup)