C++ SockAddr::toString方法代码示例

 void Listener::listen() {
     static long connNumber = 0;
     SockAddr from;
     while ( ! inShutdown() ) {
         int s = accept(sock, (sockaddr *) &from.sa, &from.addressSize);
         if ( s < 0 ) {
             if ( errno == ECONNABORTED || errno == EBADF ) {
                 log() << "Listener on port " << port << " aborted" << endl;
                 return;
             }
             log() << "Listener: accept() returns " << s << " " << OUTPUT_ERRNO << endl;
             continue;
         }
         disableNagle(s);
         if ( ! cmdLine.quiet ) log() << "connection accepted from " << from.toString() << " #" << ++connNumber << endl;
         accepted( new MessagingPort(s, from) );
     }
 }

 void MiniWebServer::run() {
     SockAddr from;
     while ( 1 ) {
         int s = accept(sock, from.getSockAddr(), &from.addressSize);
         if ( s < 0 ) {
             if ( errno == ECONNABORTED ) {
                 log() << "Listener on port " << port << " aborted." << endl;
                 return;
             }
             log() << "MiniWebServer: accept() returns " << s << " errno:" << errno << endl;
             sleepmillis(200);
             continue;
         }
         disableNagle(s);
         RARELY log() << "MiniWebServer: connection accepted from " << from.toString() << endl;
         accepted( s, from );
         closesocket(s);
     }
 }

    void Listener::initAndListen() {
        vector<SockAddr> mine = ipToAddrs(_ip.c_str(), _port);
        vector<int> socks;
        SOCKET maxfd = 0; // needed for select()

        for (vector<SockAddr>::iterator it=mine.begin(), end=mine.end(); it != end; ++it){
            SockAddr& me = *it;

            SOCKET sock = ::socket(me.getType(), SOCK_STREAM, 0);
            if ( sock == INVALID_SOCKET ) {
                log() << "ERROR: listen(): invalid socket? " << errnoWithDescription() << endl;
            }

            if (me.getType() == AF_UNIX){
#if !defined(_WIN32)
                if (unlink(me.getAddr().c_str()) == -1){
                    int x = errno;
                    if (x != ENOENT){
                        log() << "couldn't unlink socket file " << me << errnoWithDescription(x) << " skipping" << endl;
                        continue;
                    }
                }
#endif
            } else if (me.getType() == AF_INET6) {
                // IPv6 can also accept IPv4 connections as mapped addresses (::ffff:127.0.0.1)
                // That causes a conflict if we don't do set it to IPV6_ONLY
                const int one = 1;
                setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (const char*) &one, sizeof(one));
            }

            prebindOptions( sock );
            
            if ( ::bind(sock, me.raw(), me.addressSize) != 0 ) {
                int x = errno;
                log() << "listen(): bind() failed " << errnoWithDescription(x) << " for socket: " << me.toString() << endl;
                if ( x == EADDRINUSE )
                    log() << "  addr already in use" << endl;
                closesocket(sock);
                return;
            }

            if ( ::listen(sock, 128) != 0 ) {
                log() << "listen(): listen() failed " << errnoWithDescription() << endl;
                closesocket(sock);
                return;
            }

            ListeningSockets::get()->add( sock );

            socks.push_back(sock);
            if (sock > maxfd)
                maxfd = sock;
        }

        static long connNumber = 0;
        struct timeval maxSelectTime;
        while ( ! inShutdown() ) {
            fd_set fds[1];
            FD_ZERO(fds);

            for (vector<int>::iterator it=socks.begin(), end=socks.end(); it != end; ++it){
                FD_SET(*it, fds);
            }

            maxSelectTime.tv_sec = 0;
            maxSelectTime.tv_usec = 10000;
            const int ret = select(maxfd+1, fds, NULL, NULL, &maxSelectTime);
            
            if (ret == 0){
                _elapsedTime += maxSelectTime.tv_usec / 1000;
                continue;
            }
            _elapsedTime += ret; // assume 1ms to grab connection. very rough
            
            if (ret < 0){
                int x = errno;
#ifdef EINTR
                if ( x == EINTR ){
                    log() << "select() signal caught, continuing" << endl;
                    continue;
                }
#endif
                if ( ! inShutdown() )
                    log() << "select() failure: ret=" << ret << " " << errnoWithDescription(x) << endl;
                return;
            }

            for (vector<int>::iterator it=socks.begin(), end=socks.end(); it != end; ++it){
                if (! (FD_ISSET(*it, fds)))
                    continue;

                SockAddr from;
                int s = accept(*it, from.raw(), &from.addressSize);
                if ( s < 0 ) {
                    int x = errno; // so no global issues
                    if ( x == ECONNABORTED || x == EBADF ) {
                        log() << "Listener on port " << _port << " aborted" << endl;
                        return;
                    } if ( x == 0 && inShutdown() ){
                        return;   // socket closed
//.........这里部分代码省略.........

//.........这里部分代码省略.........
            // both
            _logListen( _port , false );
            _logListen( _sslPort , true );
        }
#else
        _logListen( _port , false );
#endif

        static long connNumber = 0;
        struct timeval maxSelectTime;
        while ( ! inShutdown() ) {
            fd_set fds[1];
            FD_ZERO(fds);
            
            for (vector<SOCKET>::iterator it=socks.begin(), end=socks.end(); it != end; ++it) {
                FD_SET(*it, fds);
            }

            maxSelectTime.tv_sec = 0;
            maxSelectTime.tv_usec = 10000;
            const int ret = select(maxfd+1, fds, NULL, NULL, &maxSelectTime);

            if (ret == 0) {
#if defined(__linux__)
                _elapsedTime += ( 10000 - maxSelectTime.tv_usec ) / 1000;
#else
                _elapsedTime += 10;
#endif
                continue;
            }

            if (ret < 0) {
                int x = errno;
#ifdef EINTR
                if ( x == EINTR ) {
                    log() << "select() signal caught, continuing" << endl;
                    continue;
                }
#endif
                if ( ! inShutdown() )
                    log() << "select() failure: ret=" << ret << " " << errnoWithDescription(x) << endl;
                return;
            }

#if defined(__linux__)
            _elapsedTime += max(ret, (int)(( 10000 - maxSelectTime.tv_usec ) / 1000));
#else
            _elapsedTime += ret; // assume 1ms to grab connection. very rough
#endif

            for (vector<SOCKET>::iterator it=socks.begin(), end=socks.end(); it != end; ++it) {
                if (! (FD_ISSET(*it, fds)))
                    continue;

                SockAddr from;
                int s = accept(*it, from.raw(), &from.addressSize);
                if ( s < 0 ) {
                    int x = errno; // so no global issues
                    if ( x == ECONNABORTED || x == EBADF ) {
                        log() << "Listener on port " << _port << " aborted" << endl;
                        return;
                    }
                    if ( x == 0 && inShutdown() ) {
                        return;   // socket closed
                    }
                    if( !inShutdown() ) {
                        log() << "Listener: accept() returns " << s << " " << errnoWithDescription(x) << endl;
                        if (x == EMFILE || x == ENFILE) {
                            // Connection still in listen queue but we can't accept it yet
                            error() << "Out of file descriptors. Waiting one second before trying to accept more connections." << warnings;
                            sleepsecs(1);
                        }
                    }
                    continue;
                }
                if (from.getType() != AF_UNIX)
                    disableNagle(s);

#ifdef SO_NOSIGPIPE
                // ignore SIGPIPE signals on osx, to avoid process exit
                const int one = 1;
                setsockopt( s , SOL_SOCKET, SO_NOSIGPIPE, &one, sizeof(int));
#endif

                if ( _logConnect && ! cmdLine.quiet ){
                    int conns = connTicketHolder.used()+1;
                    const char* word = (conns == 1 ? " connection" : " connections");
                    log() << "connection accepted from " << from.toString() << " #" << ++connNumber << " (" << conns << word << " now open)" << endl;
                }
                
                boost::shared_ptr<Socket> pnewSock( new Socket(s, from) );
#ifdef MONGO_SSL
                if ( _ssl && ( _sslPort == 0 || sslSocks.count(*it) ) ) {
                    pnewSock->secureAccepted( _ssl );
                }
#endif
                accepted( pnewSock );
            }
        }
    }

//.........这里部分代码省略.........
                const int mongo_errno = WSAGetLastError();
                error() << "Windows WSAWaitForMultipleEvents returned " 
                    << errnoWithDescription(mongo_errno) << endl;
                fassertFailed(16723);
            }
        
            if (result == WSA_WAIT_TIMEOUT) {
                _elapsedTime += 10;
                continue;
            }
            _elapsedTime += 1; // assume 1ms to grab connection. very rough
            
            // Determine which socket is ready
            DWORD eventIndex = result - WSA_WAIT_EVENT_0;
            WSANETWORKEVENTS networkEvents;            
            // Extract event details, and clear event for next pass
            int status = WSAEnumNetworkEvents(_socks[eventIndex],
                                              events[eventIndex], 
                                              &networkEvents);
            if (status == SOCKET_ERROR) {
                const int mongo_errno = WSAGetLastError();
                error() << "Windows WSAEnumNetworkEvents returned " 
                    << errnoWithDescription(mongo_errno) << endl;
                continue;
            }
            
            if (networkEvents.lNetworkEvents & FD_CLOSE) {              
                log() << "listen socket closed" << endl;
                break;
            }
            
            if (!(networkEvents.lNetworkEvents & FD_ACCEPT)) {
                error() << "Unexpected network event: " << networkEvents.lNetworkEvents << endl;
                continue;
            }
            
            int iec = networkEvents.iErrorCode[FD_ACCEPT_BIT];
            if (iec != 0) {                 
                error() << "Windows socket accept did not work:" << errnoWithDescription(iec) 
                        << endl;
                continue;
            }
            
            status = WSAEventSelect(_socks[eventIndex], NULL, 0);
            if (status == SOCKET_ERROR) {
                const int mongo_errno = WSAGetLastError();
                error() << "Windows WSAEventSelect returned " 
                    << errnoWithDescription(mongo_errno) << endl;
                continue;
            }
            
            disableNonblockingMode(_socks[eventIndex]);
            
            SockAddr from;
            int s = accept(_socks[eventIndex], from.raw(), &from.addressSize);
            if ( s < 0 ) {
                int x = errno; // so no global issues
                if (x == EBADF) {
                    log() << "Port " << _port << " is no longer valid" << endl;
                    continue;
                }
                else if (x == ECONNABORTED) {
                    log() << "Listener on port " << _port << " aborted" << endl;
                    continue;
                }
                if ( x == 0 && inShutdown() ) {
                    return;   // socket closed
                }
                if( !inShutdown() ) {
                    log() << "Listener: accept() returns " << s << " " 
                        << errnoWithDescription(x) << endl;
                    if (x == EMFILE || x == ENFILE) {
                        // Connection still in listen queue but we can't accept it yet
                        error() << "Out of file descriptors. Waiting one second before"
                            " trying to accept more connections." << warnings;
                        sleepsecs(1);
                    }
                }
                continue;
            }
            if (from.getType() != AF_UNIX)
                disableNagle(s);

            long long myConnectionNumber = globalConnectionNumber.addAndFetch(1);

            if (_logConnect && !serverGlobalParams.quiet) {
                int conns = globalTicketHolder.used()+1;
                const char* word = (conns == 1 ? " connection" : " connections");
                log() << "connection accepted from " << from.toString() << " #" << myConnectionNumber << " (" << conns << word << " now open)" << endl;
            }
            
            std::shared_ptr<Socket> pnewSock( new Socket(s, from) );
#ifdef MONGO_CONFIG_SSL
            if (_ssl) {
                pnewSock->secureAccepted(_ssl);
            }
#endif
            accepted( pnewSock , myConnectionNumber );
        }
    }