コード例 #1
0
ファイル: clientcursor.cpp プロジェクト: jfensign/mongo
    void ClientCursor::staticYield( int micros , const StringData& ns , Record * rec ) {
        killCurrentOp.checkForInterrupt( false );
        {
            auto_ptr<LockMongoFilesShared> lk;
            if ( rec ) {
                // need to lock this else rec->touch won't be safe file could disappear
                lk.reset( new LockMongoFilesShared() );
            }
            
            dbtempreleasecond unlock;
            if ( unlock.unlocked() ) {
                if ( micros == -1 )
                    micros = Client::recommendedYieldMicros();
                if ( micros > 0 )
                    sleepmicros( micros );
            }
            else {
                CurOp * c = cc().curop();
                while ( c->parent() )
                    c = c->parent();
                warning() << "ClientCursor::yield can't unlock b/c of recursive lock"
                          << " ns: " << ns 
                          << " top: " << c->info()
                          << endl;
            }

            if ( rec )
                rec->touch();

            lk.reset(0); // need to release this before dbtempreleasecond
        }
    }
コード例 #2
0
ファイル: clientcursor.cpp プロジェクト: EshaMaharishi/pubsub
    void ClientCursor::staticYield(int micros, const StringData& ns, const Record* rec) {
        bool haveReadLock = Lock::isReadLocked();

        killCurrentOp.checkForInterrupt();
        {
            auto_ptr<LockMongoFilesShared> lk;
            if ( rec ) {
                // need to lock this else rec->touch won't be safe file could disappear
                lk.reset( new LockMongoFilesShared() );
            }

            dbtempreleasecond unlock;
            if ( unlock.unlocked() ) {
                if ( haveReadLock ) {
                    // This sleep helps reader threads yield to writer threads.
                    // Without this, the underlying reader/writer lock implementations
                    // are not sufficiently writer-greedy.
#ifdef _WIN32
                    SwitchToThread();
#else
                    if ( micros == 0 ) {
                        yieldOrSleepFor1Microsecond();
                    }
                    else {
                        sleepmicros(1);
                    }
#endif
                }
                else {
                    if ( micros == -1 ) {
                        sleepmicros(Client::recommendedYieldMicros());
                    }
                    else if ( micros == 0 ) {
                        yieldOrSleepFor1Microsecond();
                    }
                    else if ( micros > 0 ) {
                        sleepmicros( micros );
                    }
                }

            }
            else if ( Listener::getTimeTracker() == 0 ) {
                // we aren't running a server, so likely a repair, so don't complain
            }
            else {
                CurOp * c = cc().curop();
                while ( c->parent() )
                    c = c->parent();
                warning() << "ClientCursor::staticYield can't unlock b/c of recursive lock"
                          << " ns: " << ns 
                          << " top: " << c->info()
                          << endl;
            }

            if ( rec )
                rec->touch();

            lk.reset(0); // need to release this before dbtempreleasecond
        }
    }
コード例 #3
0
ファイル: curop.cpp プロジェクト: amcfague/mongo
    CurOp* CurOp::getOp(const BSONObj& criteria) {
        Matcher matcher(criteria);
        Client& me = cc();

        scoped_lock client_lock(Client::clientsMutex);
        for (std::set<Client*>::iterator it = Client::clients.begin();
             it != Client::clients.end();
             it++) {

            Client *client = *it;
            verify(client);

            CurOp* curop = client->curop();
            if (client == &me || curop == NULL) {
                continue;
            }

            BSONObj info = curop->info();
            if (matcher.matches(info)) {
                return curop;
            }
        }

        return NULL;
    }
コード例 #4
0
ファイル: instance.cpp プロジェクト: nvdnkpr/mongo
    void inProgCmd( Message &m, DbResponse &dbresponse ) {
        BSONObjBuilder b;

        if (!cc().getAuthorizationManager()->checkAuthorization(
                AuthorizationManager::SERVER_RESOURCE_NAME, ActionType::inprog)) {
            b.append("err", "unauthorized");
        }
        else {
            DbMessage d(m);
            QueryMessage q(d);
            bool all = q.query["$all"].trueValue();
            bool allMatching = q.query["$allMatching"].trueValue();
            vector<BSONObj> vals;
            BSONObjBuilder qb;
            for (BSONObjIterator it(q.query); it.more(); ) {
                BSONElement e = it.next();
                StringData fn(e.fieldName());
                if (fn != "$all" && fn != "$allMatching") {
                    qb.append(e);
                }
            }
            {
                Client& me = cc();
                scoped_lock bl(Client::clientsMutex);
                scoped_ptr<Matcher> m(new Matcher(qb.done()));
                for( set<Client*>::iterator i = Client::clients.begin(); i != Client::clients.end(); i++ ) {
                    Client *c = *i;
                    verify( c );
                    CurOp* co = c->curop();
                    if ( c == &me && !co ) {
                        continue;
                    }
                    verify( co );
                    if( all || allMatching || co->displayInCurop() ) {
                        BSONObj info = co->info();
                        if ( all || m->matches( info )) {
                            vals.push_back( info );
                        }
                    }
                }
            }
            b.append("inprog", vals);
        }

        replyToQuery(0, m, dbresponse, b.obj());
    }
コード例 #5
0
ファイル: clientcursor.cpp プロジェクト: 89snake89/mongo
    void ClientCursor::staticYield( int micros , const StringData& ns , Record * rec ) {
        bool haveReadLock = Lock::isReadLocked();

        killCurrentOp.checkForInterrupt( false );
        {
            auto_ptr<LockMongoFilesShared> lk;
            if ( rec ) {
                // need to lock this else rec->touch won't be safe file could disappear
                lk.reset( new LockMongoFilesShared() );
            }
            
            dbtempreleasecond unlock;
            if ( unlock.unlocked() ) {
                if ( haveReadLock ) {
                    // don't sleep with a read lock
                }
                else {
                    if ( micros == -1 )
                        micros = Client::recommendedYieldMicros();
                    if ( micros > 0 )
                        sleepmicros( micros );
                }
                
            }
            else if ( Listener::getTimeTracker() == 0 ) {
                // we aren't running a server, so likely a repair, so don't complain
            }
            else {
                CurOp * c = cc().curop();
                while ( c->parent() )
                    c = c->parent();
                warning() << "ClientCursor::yield can't unlock b/c of recursive lock"
                          << " ns: " << ns 
                          << " top: " << c->info()
                          << endl;
            }

            if ( rec )
                rec->touch();

            lk.reset(0); // need to release this before dbtempreleasecond
        }
    }
コード例 #6
0
ファイル: instance.cpp プロジェクト: Thor1Khan/mongo
    void inProgCmd( Message &m, DbResponse &dbresponse ) {
        BSONObjBuilder b;

        if (!cc().getAuthorizationManager()->checkAuthorization(
                AuthorizationManager::SERVER_RESOURCE_NAME, ActionType::inprog)) {
            b.append("err", "unauthorized");
        }
        else {
            DbMessage d(m);
            QueryMessage q(d);
            bool all = q.query["$all"].trueValue();
            vector<BSONObj> vals;
            {
                Client& me = cc();
                scoped_lock bl(Client::clientsMutex);
                scoped_ptr<Matcher> m(new Matcher(q.query));
                for( set<Client*>::iterator i = Client::clients.begin(); i != Client::clients.end(); i++ ) {
                    Client *c = *i;
                    verify( c );
                    CurOp* co = c->curop();
                    if ( c == &me && !co ) {
                        continue;
                    }
                    verify( co );
                    if( all || co->displayInCurop() ) {
                        BSONObj info = co->info();
                        if ( all || m->matches( info )) {
                            vals.push_back( info );
                        }
                    }
                }
            }
            b.append("inprog", vals);
            if( lockedForWriting() ) {
                b.append("fsyncLock", true);
                b.append("info", "use db.fsyncUnlock() to terminate the fsync write/snapshot lock");
            }
        }

        replyToQuery(0, m, dbresponse, b.obj());
    }
コード例 #7
0
ファイル: clientcursor.cpp プロジェクト: Kenterfie/mongo
 void ClientCursor::staticYield( int micros , const StringData& ns ) {
     killCurrentOp.checkForInterrupt( false );
     {
         dbtempreleasecond unlock;
         if ( unlock.unlocked() ) {
             if ( micros == -1 )
                 micros = Client::recommendedYieldMicros();
             if ( micros > 0 )
                 sleepmicros( micros );
         }
         else {
             CurOp * c = cc().curop();
             while ( c->parent() )
                 c = c->parent();
             warning() << "ClientCursor::yield can't unlock b/c of recursive lock"
                       << " ns: " << ns 
                       << " top: " << c->info()
                       << endl;
         }
     }
 }