path: root/db/db.cpp

// db.cpp : Defines the entry point for the console application.
//

/**
*    Copyright (C) 2008 10gen Inc.info
*
*    This program is free software: you can redistribute it and/or  modify
*    it under the terms of the GNU Affero General Public License, version 3,
*    as published by the Free Software Foundation.
*
*    This program is distributed in the hope that it will be useful,
*    but WITHOUT ANY WARRANTY; without even the implied warranty of
*    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
*    GNU Affero General Public License for more details.
*
*    You should have received a copy of the GNU Affero General Public License
*    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "stdafx.h"
#include "db.h"
#include "query.h"
#include "introspect.h"
#include "repl.h"
#include "../util/unittest.h"
#include "../util/file_allocator.h"
#include "dbmessage.h"
#include "instance.h"
#include "clientcursor.h"
#include "pdfile.h"
#if !defined(_WIN32)
#include <sys/file.h>
#endif

#if defined(_WIN32)
#include "../util/ntservice.h"
#endif

#include "../scripting/engine.h"
#include "mms.h"

namespace mongo {

    extern bool quiet, quota, cpu;
    bool useJNI = true;

    /* only off if --nocursors which is for debugging. */
    extern bool useCursors;
    /* only off if --nohints */
    extern bool useHints;

    bool noHttpInterface = false;

    extern int port;
    extern string bind_ip;
    extern char *appsrvPath;
    extern int curOp;
    extern bool autoresync;
    extern string dashDashSource;
    extern string dashDashOnly;
    extern int opLogging;
    extern long long oplogSize;
    extern OpLog _oplog;

    extern int ctr;
    extern int callDepth;

    extern int lockFile;

    void setupSignals();
    void closeAllSockets();
    void startReplication();
    void pairWith(const char *remoteEnd, const char *arb);
    void setRecCacheSize(unsigned MB);

    struct MyStartupTests {
        MyStartupTests() {
            assert( sizeof(OID) == 12 );
        }
    } mystartupdbcpp;

    QueryResult* emptyMoreResult(long long);

    void testTheDb() {
        stringstream ss;

        setClient("sys.unittest.pdfile");

        /* this is not validly formatted, if you query this namespace bad things will happen */
        theDataFileMgr.insert("sys.unittest.pdfile", (void *) "hello worldx", 13);
        theDataFileMgr.insert("sys.unittest.pdfile", (void *) "hello worldx", 13);

        BSONObj j1((const char *) &js1);
        deleteObjects("sys.unittest.delete", j1, false);
        theDataFileMgr.insert("sys.unittest.delete", &js1, sizeof(js1));
        deleteObjects("sys.unittest.delete", j1, false);
        updateObjects("sys.unittest.delete", j1, j1, true,ss);
        updateObjects("sys.unittest.delete", j1, j1, false,ss);

        auto_ptr<Cursor> c = theDataFileMgr.findAll("sys.unittest.pdfile");
        while ( c->ok() ) {
            c->_current();
            c->advance();
        }
        out() << endl;

        database = 0;
    }

    MessagingPort *grab = 0;
    void connThread();

    class OurListener : public Listener {
    public:
        OurListener(const string &ip, int p) : Listener(ip, p) { }
        virtual void accepted(MessagingPort *mp) {
            assert( grab == 0 );
            grab = mp;
            boost::thread thr(connThread);
            while ( grab )
                sleepmillis(1);
        }
    };

    void webServerThread();
    void pdfileInit();

    /* versions
       114 bad memory bug fixed
       115 replay, opLogging
    */
    void listen(int port) {
        log() << mongodVersion() << endl;
        printGitVersion();
        printSysInfo();
        pdfileInit();
        //testTheDb();
        log() << "waiting for connections on port " << port << endl;
        OurListener l(bind_ip, port);
        startReplication();
        if ( !noHttpInterface )
            boost::thread thr(webServerThread);
        if ( l.init() ) {
            registerListenerSocket( l.socket() );
            l.listen();
        }
    }

    class JniMessagingPort : public AbstractMessagingPort {
    public:
        JniMessagingPort(Message& _container) : container(_container) { }
        void reply(Message& received, Message& response, MSGID) {
            container = response;
        }
        void reply(Message& received, Message& response) {
            container = response;
        }
        Message & container;
    };

} // namespace mongo

#include "lasterror.h"
#include "security.h"

namespace mongo {

  void sysRuntimeInfo() {
    out() << "sysinfo:\n";
#if defined(_SC_PAGE_SIZE)
    out() << "  page size: " << (int) sysconf(_SC_PAGE_SIZE) << endl;
#endif
#if defined(_SC_PHYS_PAGES)
    out() << "  _SC_PHYS_PAGES: " << sysconf(_SC_PHYS_PAGES) << endl;
#endif
#if defined(_SC_AVPHYS_PAGES)
    out() << "  _SC_AVPHYS_PAGES: " << sysconf(_SC_AVPHYS_PAGES) << endl;
#endif
  }

    /* we create one thread for each connection from an app server database.
       app server will open a pool of threads.
    */
    void connThread()
    {
        AuthenticationInfo *ai = new AuthenticationInfo();
        authInfo.reset(ai);
        LastError *le = new LastError();
        lastError.reset(le);

        MessagingPort& dbMsgPort = *grab;
        grab = 0;

        try {

            ai->isLocalHost = dbMsgPort.farEnd.isLocalHost();

            Message m;
            while ( 1 ) {
                m.reset();

                if ( !dbMsgPort.recv(m) ) {
                    lognoquiet() << "end connection " << dbMsgPort.farEnd.toString() << endl;
                    dbMsgPort.shutdown();
                    break;
                }

                le->nPrev++;

                DbResponse dbresponse;
                if ( !assembleResponse( m, dbresponse, dbMsgPort.farEnd.sa ) ) {
                    out() << curTimeMillis() % 10000 << "   end msg " << dbMsgPort.farEnd.toString() << endl;
                    /* todo: we may not wish to allow this, even on localhost: very low priv accounts could stop us. */
                    if ( dbMsgPort.farEnd.isLocalHost() ) {
                        dbMsgPort.shutdown();
                        sleepmillis(50);
                        problem() << "exiting end msg" << endl;
                        dbexit(EXIT_CLEAN);
                    }
                    else {
                        out() << "  (not from localhost, ignoring end msg)" << endl;
                    }
                }

                if ( dbresponse.response )
                    dbMsgPort.reply(m, *dbresponse.response, dbresponse.responseTo);
            }

        }
        catch ( AssertionException& ) {
            problem() << "AssertionException in connThread, closing client connection" << endl;
            dbMsgPort.shutdown();
        }
        catch ( SocketException& ) {
            problem() << "SocketException in connThread, closing client connection" << endl;
            dbMsgPort.shutdown();
        }
        catch ( std::exception &e ) {
            problem() << "Uncaught std::exception: " << e.what() << ", terminating" << endl;
            dbexit( EXIT_UNCAUGHT );
        }
        catch ( ... ) {
            problem() << "Uncaught exception, terminating" << endl;
            dbexit( EXIT_UNCAUGHT );
        }

        // any thread cleanup can happen here
        
        globalScriptEngine->threadDone();
    }


    void msg(const char *m, const char *address, int port, int extras = 0) {

        SockAddr db(address, port);

//  SockAddr db("127.0.0.1", DBPort);
//  SockAddr db("192.168.37.1", MessagingPort::DBPort);
//  SockAddr db("10.0.21.60", MessagingPort::DBPort);
//  SockAddr db("172.16.0.179", MessagingPort::DBPort);

        MessagingPort p;
        if ( !p.connect(db) )
            return;

        const int Loops = 1;
        for ( int q = 0; q < Loops; q++ ) {
            Message send;
            Message response;

            send.setData( dbMsg , m);
            int len = send.data->dataLen();

            for ( int i = 0; i < extras; i++ )
                p.say(/*db, */send);

            Timer t;
            bool ok = p.call(send, response);
            double tm = t.micros() + 1;
            out() << " ****ok. response.data:" << ok << " time:" << tm / 1000.0 << "ms " <<
                 ((double) len) * 8 / 1000000 / (tm/1000000) << "Mbps" << endl;
            if (  q+1 < Loops ) {
                out() << "\t\tSLEEP 8 then sending again as a test" << endl;
                sleepsecs(8);
            }
        }
        sleepsecs(1);

        p.shutdown();
    }

    void msg(const char *m, int extras = 0) {
        msg(m, "127.0.0.1", DBPort, extras);
    }

    void repairDatabases() {
        dblock lk;
        vector< string > dbNames;
        getDatabaseNames( dbNames );
        for ( vector< string >::iterator i = dbNames.begin(); i != dbNames.end(); ++i ) {
            string dbName = *i;
            assert( !setClientTempNs( dbName.c_str() ) );
            MongoDataFile *p = database->getFile( 0 );
            MDFHeader *h = p->getHeader();
            if ( !h->currentVersion() ) {
                // QUESTION: Repair even if file format is higher version than code?
                log() << "repairing database " << dbName << " with pdfile version " << h->version << "." << h->versionMinor << ", "
                << "new version: " << VERSION << "." << VERSION_MINOR << endl;
                string errmsg;
                assert( repairDatabase( dbName.c_str(), errmsg ) );
            } else {
                closeClient( dbName.c_str() );
            }
        }
    }

    void clearTmpFiles() {
        boost::filesystem::path path( dbpath );
        for ( boost::filesystem::directory_iterator i( path );
                i != boost::filesystem::directory_iterator(); ++i ) {
            string fileName = i->leaf();
            if ( boost::filesystem::is_directory( *i ) &&
                    fileName.length() > 2 && fileName.substr( 0, 3 ) == "tmp" )
                boost::filesystem::remove_all( *i );
        }
    }

    void clearTmpCollections() {
        vector< string > toDelete;
        DBDirectClient cli;
        auto_ptr< DBClientCursor > c = cli.query( "local.system.namespaces", Query( fromjson( "{name:/^local.temp./}" ) ) );
        while( c->more() )
            toDelete.push_back( c->next().getStringField( "name" ) );
        for( vector< string >::iterator i = toDelete.begin(); i != toDelete.end(); ++i ) {
            log() << "Dropping old temporary collection: " << *i << endl;
            cli.dropCollection( *i );
        }
    }

    void show_32_warning(){
        if ( sizeof(int*) != 4 )
            return;
        cout << endl;
        cout << "** NOTE: when using MongoDB 32 bit, you are limited to about 2 gigabytes of data" << endl;
        cout << "**       see http://blog.mongodb.org/post/137788967/32-bit-limitations for more" << endl;
        cout << endl;
    }

    Timer startupSrandTimer;

    void _initAndListen(int listenPort, const char *appserverLoc = null) {

#if !defined(_WIN32)
        pid_t pid = 0;
        pid = getpid();
#else
        int pid=0;
#endif

        bool is32bit = sizeof(int*) == 4;

        log() << "Mongo DB : starting : pid = " << pid << " port = " << port << " dbpath = " << dbpath
              <<  " master = " << master << " slave = " << (int) slave << "  " << ( is32bit ? "32" : "64" ) << "-bit " << endl;

        show_32_warning();

        stringstream ss;
        ss << "dbpath (" << dbpath << ") does not exist";
        massert( ss.str().c_str(), boost::filesystem::exists( dbpath ) );

        acquirePathLock();

        theFileAllocator().start();

        BOOST_CHECK_EXCEPTION( clearTmpFiles() );

        clearTmpCollections();

        if ( opLogging )
            log() << "opLogging = " << opLogging << endl;
        _oplog.init();

        mms.go();

#if 0
        {
            stringstream indexpath;
            indexpath << dbpath << "/indexes.dat";
            RecCache::tempStore.init(indexpath.str().c_str(), BucketSize);
        }
#endif


        if ( useJNI ) {
            ScriptEngine::setup();
        }

        repairDatabases();
        /* this is for security on certain platforms */
        srand(curTimeMicros() ^ startupSrandTimer.micros());

        listen(listenPort);

        // listen() will return when exit code closes its socket.
        while( 1 )
            sleepsecs( 100 );
    }
    void initAndListen(int listenPort, const char *appserverLoc = null) {
        try { _initAndListen(listenPort, appserverLoc); }
        catch(...) {
            log() << " exception in initAndListen, terminating" << endl;
            dbexit( EXIT_UNCAUGHT );
        }
    }

    #if defined(_WIN32)
    bool initService() {
        ServiceController::reportStatus( SERVICE_RUNNING );
        initAndListen( port, appsrvPath );
        return true;
    }
    #endif

} // namespace mongo


using namespace mongo;

#include <boost/program_options.hpp>

namespace po = boost::program_options;


void show_help_text(po::options_description options) {
    show_32_warning();
    cout << options << endl;
};

/* Return error string or "" if no errors. */
string arg_error_check(int argc, char* argv[]) {
    for (int i = 1; i < argc; i++) {
        string s = argv[i];
        /* check for inclusion of old-style arbiter setting. */
        if (s == "--pairwith") {
            if (argc > i + 2) {
                string old_arbiter = argv[i + 2];
                if (old_arbiter == "-" || old_arbiter.substr(0, 1) != "-") {
                    return "Specifying arbiter using --pairwith is no longer supported, please use --arbiter";
                }
            }
        }
    }
    return "";
}

int main(int argc, char* argv[], char *envp[] )
{
    po::options_description general_options("General options");
    po::options_description replication_options("Replication options");
    po::options_description visible_options("Allowed options");
    po::options_description hidden_options("Hidden options");
    po::options_description cmdline_options("Command line options");

    po::positional_options_description positional_options;

    general_options.add_options()
        ("help,h", "show this usage information")
        ("config,f", po::value<string>(), "configuration file specifying additional options")
        ("port", po::value<int>(&port)->default_value(DBPort), "specify port number")
        ("bind_ip", po::value<string>(&bind_ip),
         "local ip address to bind listener - all local ips bound by default")
        ("verbose,v", "be more verbose (include multiple times for more verbosity e.g. -vvvvv)")
        ("dbpath", po::value<string>()->default_value("/data/db/"), "directory for datafiles")
        ("quiet", "quieter output")
        ("cpu", "periodically show cpu and iowait utilization")
        ("noauth", "run without security")
        ("auth", "run with security")
        ("objcheck", "inspect client data for validity on receipt")
        ("quota", "enable db quota management")
        ("appsrvpath", po::value<string>(), "root directy for the babble app server")
        ("nocursors", "diagnostic/debugging option")
        ("nohints", "ignore query hints")
        ("nohttpinterface", "disable http interface")
        ("noscripting", "disable scripting engine")
        ("noprealloc", "disable data file preallocation")
        ("oplog", po::value<int>(), "0=off 1=W 2=R 3=both 7=W+some reads")
        ("sysinfo", "print some diagnostic system information")
#if defined(_WIN32)
        ("install", "install mongodb service")
        ("remove", "remove mongodb service")
        ("service", "start mongodb service")
#endif
        ( "mms-token" , po::value<string>() , "account token for mongo monitoring server" )
        ( "mms-name" , po::value<string>() , "server name mongo monitoring server" )
        ( "mms-interval" , po::value<int>()->default_value(30) , "ping interval for mongo monitoring server (default 30)" )
        ;

    replication_options.add_options()
        ("master", "master mode")
        ("slave", "slave mode")
        ("source", po::value<string>(), "when slave: specify master as <server:port>")
        ("only", po::value<string>(), "when slave: specify a single database to replicate")
        ("pairwith", po::value<string>(), "address of server to pair with")
        ("arbiter", po::value<string>(), "address of arbiter server")
        ("autoresync", "automatically resync if slave data is stale")
        ("oplogSize", po::value<long>(), "size limit (in MB) for op log")
        ("opIdMem", po::value<long>(), "size limit (in bytes) for in memory storage of op ids")
        ;

    hidden_options.add_options()
        ("command", po::value< vector<string> >(), "command")
        ("cacheSize", po::value<long>(), "cache size (in MB) for rec store")
        /* hiding this because it is deprecated */
        ("deDupMem", po::value<long>(), "custom memory limit (in bytes) for query de-duping")
        ;

    /* support for -vv -vvvv etc. */
    for (string s = "vv"; s.length() <= 10; s.append("v")) {
        hidden_options.add_options()(s.c_str(), "verbose");
    }

    positional_options.add("command", 3);
    visible_options.add(general_options).add(replication_options);
    cmdline_options.add(general_options).add(replication_options).add(hidden_options);

    setupSignals();

    dbExecCommand = argv[0];

    srand(curTimeMicros());
    boost::filesystem::path::default_name_check( boost::filesystem::no_check );

    {
        unsigned x = 0x12345678;
        unsigned char& b = (unsigned char&) x;
        if ( b != 0x78 ) {
            out() << "big endian cpus not yet supported" << endl;
            return 33;
        }
    }

    DEV out() << "warning: DEV mode enabled\n";

    UnitTest::runTests();

    if (argc >= 2) {
        bool installService = false;
        bool removeService = false;
        bool startService = false;
        po::variables_map params;

        string error_message = arg_error_check(argc, argv);
        if (error_message != "") {
            cout << error_message << endl << endl;
            show_help_text(visible_options);
            return 0;
        }

        /* don't allow guessing - creates ambiguities when some options are
         * prefixes of others. allow long disguises and don't allow guessing
         * to get away with our vvvvvvv trick. */
        int command_line_style = (((po::command_line_style::unix_style ^
                                    po::command_line_style::allow_guessing) |
                                   po::command_line_style::allow_long_disguise) ^
                                  po::command_line_style::allow_sticky);

        try {
            po::store(po::command_line_parser(argc, argv).options(cmdline_options).
                      positional(positional_options).
                      style(command_line_style).run(), params);

            if (params.count("config")) {
                ifstream config_file (params["config"].as<string>().c_str());
                if (config_file.is_open()) {
                    po::store(po::parse_config_file(config_file, cmdline_options), params);
                    config_file.close();
                } else {
                    cout << "ERROR: could not read from config file" << endl << endl;
                    cout << visible_options << endl;
                    return 0;
                }
            }

            po::notify(params);
        } catch (po::error &e) {
            cout << "ERROR: " << e.what() << endl << endl;
            cout << visible_options << endl;
            return 0;
        }

        if (params.count("help")) {
            show_help_text(visible_options);
            return 0;
        }
        dbpath = params["dbpath"].as<string>();
        if (params.count("quiet")) {
            quiet = true;
        }
        if (params.count("verbose")) {
            logLevel = 1;
        }
        for (string s = "vv"; s.length() <= 10; s.append("v")) {
            if (params.count(s)) {
                logLevel = s.length();
            }
        }
        if (params.count("cpu")) {
            cpu = true;
        }
        if (params.count("noauth")) {
            noauth = true;
        }
        if (params.count("auth")) {
            noauth = false;
        }
        if (params.count("quota")) {
            quota = true;
        }
        if (params.count("objcheck")) {
            objcheck = true;
        }
        if (params.count("appsrvpath")) {
            /* casting away the const-ness here */
            appsrvPath = (char*)(params["appsrvpath"].as<string>().c_str());
        }
        if (params.count("nocursors")) {
            useCursors = false;
        }
        if (params.count("nohints")) {
            useHints = false;
        }
        if (params.count("nohttpinterface")) {
            noHttpInterface = true;
        }
        if (params.count("noscripting")) {
            useJNI = false;
        }
        if (params.count("noprealloc")) {
            prealloc = false;
        }
        if (params.count("oplog")) {
            int x = params["oplog"].as<int>();
            if ( x < 0 || x > 7 ) {
                out() << "can't interpret --oplog setting" << endl;
                dbexit( EXIT_BADOPTIONS );
            }
            opLogging = x;
        }
        if (params.count("sysinfo")) {
            sysRuntimeInfo();
            return 0;
        }
        if (params.count("deDupMem")) {
            uasserted("deprecated");
            long x = params["deDupMem"].as<long>();
            uassert("bad arg", x > 0);
            // IdSet::maxSize_ = x;
            // assert(IdSet::maxSize_ > 0);
        }
        if (params.count("install")) {
            installService = true;
        }
        if (params.count("remove")) {
            removeService = true;
        }
        if (params.count("service")) {
            startService = true;
        }
        if (params.count("master")) {
            master = true;
        }
        if (params.count("slave")) {
			slave = SimpleSlave;
        }
        if (params.count("source")) {
            /* specifies what the source in local.sources should be */
            dashDashSource = params["source"].as<string>().c_str();
        }
        if (params.count("only")) {
            dashDashOnly = params["only"].as<string>().c_str();
        }
        if (params.count("pairwith")) {
            string paired = params["pairwith"].as<string>();
            if (params.count("arbiter")) {
                string arbiter = params["arbiter"].as<string>();
                pairWith(paired.c_str(), arbiter.c_str());
            } else {
                pairWith(paired.c_str(), "-");
            }
        } else if (params.count("arbiter")) {
            uasserted("specifying --arbiter without --pairwith");
        }
        if (params.count("autoresync")) {
            autoresync = true;
        }
        if (params.count("oplogSize")) {
            long x = params["oplogSize"].as<long>();
            uassert("bad --oplogSize arg", x > 0);
            oplogSize = x * 1024 * 1024;
            assert(oplogSize > 0);
        }
        if (params.count("opIdMem")) {
            long x = params["opIdMem"].as<long>();
            uassert("bad --opIdMem arg", x > 0);
            opIdMem = x;
            assert(opIdMem > 0);
        }
        if (params.count("cacheSize")) {
            long x = params["cacheSize"].as<long>();
            uassert("bad --cacheSize arg", x > 0);
            setRecCacheSize(x);
        }

        if ( params.count( "mms-token" ) ){
            mms.setToken( params["mms-token"].as<string>() );
        }
        if ( params.count( "mms-name" ) ){
            mms.setName( params["mms-name"].as<string>() );
        }
        mms.setPingInterval( params["mms-interval"].as<int>() );

        if (params.count("command")) {
            vector<string> command = params["command"].as< vector<string> >();

            if (command[0].compare("msg") == 0) {
                const char *m;

                if (command.size() < 3) {
                    cout << "Too few parameters to 'msg' command" << endl;
                    cout << visible_options << endl;
                    return 0;
                }

                m = command[1].c_str();

                msg(m, "127.0.0.1", atoi(command[2].c_str()));
                return 0;
            }
            if (command[0].compare("run") == 0) {
                if (command.size() > 1) {
                    cout << "Too many parameters to 'run' command" << endl;
                    cout << visible_options << endl;
                    return 0;
                }

                initAndListen(port);
                return 0;
            }

            cout << "Invalid command: " << command[0] << endl;
            cout << visible_options << endl;
            return 0;
        }

#if defined(_WIN32)
        if ( installService ) {
            if ( !ServiceController::installService( L"MongoDB", L"Mongo DB", L"Mongo DB Server", argc, argv ) )
                dbexit( EXIT_NTSERVICE_ERROR );
            dbexit( EXIT_CLEAN );
        }
        else if ( removeService ) {
            if ( !ServiceController::removeService( L"MongoDB" ) )
                dbexit( EXIT_NTSERVICE_ERROR );
            dbexit( EXIT_CLEAN );
        }
        else if ( startService ) {
            if ( !ServiceController::startService( L"MongoDB", mongo::initService ) )
                dbexit( EXIT_NTSERVICE_ERROR );
            dbexit( EXIT_CLEAN );
        }
#endif
    } 
    else {
        cout << dbExecCommand << " --help for help and startup options" << endl;
    }

    initAndListen(port, appsrvPath);
    dbexit(EXIT_CLEAN);
    return 0;
}

namespace mongo {

    /* we do not use log() below as it uses a mutex and that could cause deadlocks.
    */

    string getDbContext();

#undef out

#if !defined(_WIN32)

} // namespace mongo

#include <signal.h>
#include <string.h>

namespace mongo {

    void pipeSigHandler( int signal ) {
#ifdef psignal
        psignal( signal, "Signal Received : ");
#else
        cout << "got pipe signal:" << signal << endl;
#endif
    }

    void abruptQuit(int x) {
        ostringstream ossSig;
        ossSig << "Got signal: " << x << " (" << strsignal( x ) << ")." << endl;
        rawOut( ossSig.str() );

        ostringstream ossOp;
        ossOp << "Last op: " << currentOp.infoNoauth() << endl;
        rawOut( ossOp.str() );

        ostringstream oss;
        oss << "Backtrace:" << endl;
        printStackTrace( oss );
        rawOut( oss.str() );
        dbexit( EXIT_ABRUBT );
    }

    sigset_t asyncSignals;
    // The above signals will be processed by this thread only, in order to
    // ensure the db and log mutexes aren't held.
    void interruptThread() {
        int x;
        sigwait( &asyncSignals, &x );
        log() << "got kill or ctrl c signal " << x << " (" << strsignal( x ) << "), will terminate after current cmd ends" << endl;
        {
            dblock lk;
            log() << "now exiting" << endl;
            dbexit( EXIT_KILL );
        }
    }

    void setupSignals() {
        assert( signal(SIGSEGV, abruptQuit) != SIG_ERR );
        assert( signal(SIGFPE, abruptQuit) != SIG_ERR );
        assert( signal(SIGABRT, abruptQuit) != SIG_ERR );
        assert( signal(SIGBUS, abruptQuit) != SIG_ERR );
        assert( signal(SIGPIPE, pipeSigHandler) != SIG_ERR );

        sigemptyset( &asyncSignals );
        sigaddset( &asyncSignals, SIGINT );
        sigaddset( &asyncSignals, SIGTERM );
        assert( pthread_sigmask( SIG_SETMASK, &asyncSignals, 0 ) == 0 );
        boost::thread it( interruptThread );
    }

#else
void ctrlCTerminate() {
    log() << "got kill or ctrl c signal, will terminate after current cmd ends" << endl;
    {
        dblock lk;
        log() << "now exiting" << endl;
        dbexit( EXIT_KILL );
    }
}
BOOL CtrlHandler( DWORD fdwCtrlType ) 
{ 
    switch( fdwCtrlType ) 
    { 
    case CTRL_C_EVENT: 
        rawOut("Ctrl-C signal\n");
        ctrlCTerminate();
        return( TRUE );
    case CTRL_CLOSE_EVENT: 
        rawOut("CTRL_CLOSE_EVENT signal\n");
        ctrlCTerminate();
        return( TRUE ); 
    case CTRL_BREAK_EVENT: 
        rawOut("CTRL_BREAK_EVENT signal\n");
        ctrlCTerminate();
        return TRUE;
    case CTRL_LOGOFF_EVENT: 
        rawOut("CTRL_LOGOFF_EVENT signal (ignored)\n");
        return FALSE; 
    case CTRL_SHUTDOWN_EVENT: 
         rawOut("CTRL_SHUTDOWN_EVENT signal (ignored)\n");
         return FALSE; 
    default: 
        return FALSE; 
    } 
} 

    void setupSignals() {
        if( SetConsoleCtrlHandler( (PHANDLER_ROUTINE) CtrlHandler, TRUE ) ) 
            ;
        else
            massert("Couldn't register Ctrl-C handler", false);
    } 
#endif

} // namespace mongo

#include "recstore.h"
#include "reccache.h"