DiskLoc DummyExtentManager::allocateExtent( OperationContext* txn,
        bool capped,
        int size,
        bool enforceQuota ) {
    size = quantizeExtentSize( size );

    ExtentInfo info;
    info.data = static_cast<char*>( mongoMalloc( size ) );
    info.length = size;

    DiskLoc loc( _extents.size(), 0 );
    _extents.push_back( info );

    Extent* e = getExtent( loc, false );
    e->magic = Extent::extentSignature;
    e->myLoc = loc;
    e->xnext.Null();
    e->xprev.Null();
    e->length = size;
    e->firstRecord.Null();
    e->lastRecord.Null();

    return loc;

}
示例#2
0
    WindowsCommandLine::WindowsCommandLine(int argc, wchar_t* argvW[], wchar_t* envpW[]) :
            _argv(NULL), _envp(NULL) {

        // Construct UTF-8 copy of arguments
        vector<string> utf8args;
        vector<size_t> utf8argLength;
        size_t blockSize = argc * sizeof(char*);
        size_t blockPtr = blockSize;
        for (int i = 0; i < argc; ++i) {
            utf8args.push_back( toUtf8String(argvW[i]) );
            size_t argLength = utf8args[i].length() + 1;
            utf8argLength.push_back(argLength);
            blockSize += argLength;
        }
        _argv = static_cast<char**>(mongoMalloc(blockSize));
        for (int i = 0; i < argc; ++i) {
            _argv[i] = reinterpret_cast<char*>(_argv) + blockPtr;
            strcpy_s(_argv[i], utf8argLength[i], utf8args[i].c_str());
            blockPtr += utf8argLength[i];
        }

        // Construct UTF-8 copy of environment strings
        size_t envCount = 0;
        wchar_t** envpWptr = &envpW[0];
        while (*envpWptr++) {
            ++envCount;
        }
        vector<string> utf8envs;
        vector<size_t> utf8envLength;
        blockSize = (envCount + 1) * sizeof(char*);
        blockPtr = blockSize;
        for (size_t i = 0; i < envCount; ++i) {
            utf8envs.push_back( toUtf8String(envpW[i]) );
            size_t envLength = utf8envs[i].length() + 1;
            utf8envLength.push_back(envLength);
            blockSize += envLength;
        }
        _envp = static_cast<char**>(mongoMalloc(blockSize));
        size_t i;
        for (i = 0; i < envCount; ++i) {
            _envp[i] = reinterpret_cast<char*>(_envp) + blockPtr;
            strcpy_s(_envp[i], utf8envLength[i], utf8envs[i].c_str());
            blockPtr += utf8envLength[i];
        }
        _envp[i] = NULL;
    }
void NetworkInterfaceASIO::_recvMessageBody(AsyncOp* op) {
    // TODO: This error code should be more meaningful.
    std::error_code ec;

    // validate message length
    int len = op->header()->constView().getMessageLength();
    if (len == 542393671) {
        LOG(3) << "attempt to access MongoDB over HTTP on the native driver port.";
        return _networkErrorCallback(op, ec);
    } else if (len == -1) {
        // TODO: An endian check is run after the client connects, we should
        // set that we've received the client's handshake
        LOG(3) << "Endian check received from client";
        return _networkErrorCallback(op, ec);
    } else if (static_cast<size_t>(len) < sizeof(MSGHEADER::Value) ||
               static_cast<size_t>(len) > MaxMessageSizeBytes) {
        warning() << "recv(): message len " << len << " is invalid. "
                  << "Min " << sizeof(MSGHEADER::Value) << " Max: " << MaxMessageSizeBytes;
        return _networkErrorCallback(op, ec);
    }

    // validate response id
    uint32_t expectedId = op->toSend()->header().getId();
    uint32_t actualId = op->header()->constView().getResponseTo();
    if (actualId != expectedId) {
        LOG(3) << "got wrong response:"
               << " expected response id: " << expectedId << ", got response id: " << actualId;
        return _networkErrorCallback(op, ec);
    }

    int z = (len + 1023) & 0xfffffc00;
    invariant(z >= len);
    op->toRecv()->setData(reinterpret_cast<char*>(mongoMalloc(z)), true);
    MsgData::View mdView = op->toRecv()->buf();

    // copy header data into master buffer
    int headerLen = sizeof(MSGHEADER::Value);
    memcpy(mdView.view2ptr(), op->header(), headerLen);
    int bodyLength = len - headerLen;
    invariant(bodyLength >= 0);

    // receive remaining data into md->data
    asio::async_read(op->connection()->sock(),
                     asio::buffer(mdView.data(), bodyLength),
                     [this, op, mdView](asio::error_code ec, size_t bytes) {

                         if (op->canceled()) {
                             return _completeOperation(op, kCanceledStatus);
                         }

                         if (ec) {
                             LOG(3) << "error receiving message body";
                             return _networkErrorCallback(op, ec);
                         }

                         return _completedWriteCallback(op);
                     });
}
示例#4
0
文件: logfile.cpp 项目: ANTco/mongo
 void run() {
     if( 0 && debug ) {
         try {
             LogFile f("logfile_test");
             void *p = mongoMalloc(16384);
             char *buf = (char*) p;
             buf += 4095;
             buf = (char*) (((size_t)buf)&(~0xfff));
             memset(buf, 'z', 8192);
             buf[8190] = '\n';
             buf[8191] = 'B';
             buf[0] = 'A';
             f.synchronousAppend(buf, 8192);
             f.synchronousAppend(buf, 8192);
             free(p);
         }
         catch(DBException& e ) {
             log() << "logfile.cpp test failed : " << e.what() << endl;
             throw;
         }
     }
 }
示例#5
0
bool MessagingPort::recv(Message& m) {
    try {
#ifdef MONGO_CONFIG_SSL
    again:
#endif
        // mmm( log() << "*  recv() sock:" << this->sock << endl; )
        MSGHEADER::Value header;
        int headerLen = sizeof(MSGHEADER::Value);
        psock->recv((char*)&header, headerLen);
        int len = header.constView().getMessageLength();

        if (len == 542393671) {
            // an http GET
            string msg =
                "It looks like you are trying to access MongoDB over HTTP on the native driver "
                "port.\n";
            LOG(psock->getLogLevel()) << msg;
            std::stringstream ss;
            ss << "HTTP/1.0 200 OK\r\nConnection: close\r\nContent-Type: "
                  "text/plain\r\nContent-Length: " << msg.size() << "\r\n\r\n" << msg;
            string s = ss.str();
            send(s.c_str(), s.size(), "http");
            return false;
        }
        // If responseTo is not 0 or -1 for first packet assume SSL
        else if (psock->isAwaitingHandshake()) {
#ifndef MONGO_CONFIG_SSL
            if (header.constView().getResponseTo() != 0 &&
                header.constView().getResponseTo() != -1) {
                uasserted(17133,
                          "SSL handshake requested, SSL feature not available in this build");
            }
#else
            if (header.constView().getResponseTo() != 0 &&
                header.constView().getResponseTo() != -1) {
                uassert(17132,
                        "SSL handshake received but server is started without SSL support",
                        sslGlobalParams.sslMode.load() != SSLParams::SSLMode_disabled);
                setX509SubjectName(
                    psock->doSSLHandshake(reinterpret_cast<const char*>(&header), sizeof(header)));
                psock->setHandshakeReceived();
                goto again;
            }
            uassert(17189,
                    "The server is configured to only allow SSL connections",
                    sslGlobalParams.sslMode.load() != SSLParams::SSLMode_requireSSL);
#endif  // MONGO_CONFIG_SSL
        }
        if (static_cast<size_t>(len) < sizeof(MSGHEADER::Value) ||
            static_cast<size_t>(len) > MaxMessageSizeBytes) {
            LOG(0) << "recv(): message len " << len << " is invalid. "
                   << "Min " << sizeof(MSGHEADER::Value) << " Max: " << MaxMessageSizeBytes;
            return false;
        }

        psock->setHandshakeReceived();
        int z = (len + 1023) & 0xfffffc00;
        verify(z >= len);
        MsgData::View md = reinterpret_cast<char*>(mongoMalloc(z));
        ScopeGuard guard = MakeGuard(free, md.view2ptr());
        verify(md.view2ptr());

        memcpy(md.view2ptr(), &header, headerLen);
        int left = len - headerLen;

        psock->recv(md.data(), left);

        guard.Dismiss();
        m.setData(md.view2ptr(), true);
        return true;

    } catch (const SocketException& e) {
        logger::LogSeverity severity = psock->getLogLevel();
        if (!e.shouldPrint())
            severity = severity.lessSevere();
        LOG(severity) << "SocketException: remote: " << remote() << " error: " << e;
        m.reset();
        return false;
    }
}
示例#6
0
BSONObj BSONObj::copy() const {
    char* storage = static_cast<char*>(mongoMalloc(sizeof(Holder) + objsize()));
    memcpy(storage + sizeof(Holder), objdata(), objsize());
    return BSONObj::takeOwnership(storage);
}