CNewsgroup.h

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#ifndef __CNewsgroup_h__
#define __CNewsgroup_h__

#include "NServer.h"
#include "NVNewsgroup.h"

class CNewsgroup:public NVNewsgroup {
      protected:
        nvtime_t _TTLGroup;
        RServer *_RServer;

        void sUpdateGroupInfo(unsigned int *infof, unsigned int *infol);
        void sUpdateOverview(void);

        void updateOverview(void) {
                VERB(slog.
                     p(Logger::Debug) << "CNewsgroup::updateOverview()\n");
                nvtime_t mt;
                 getmtime(&mt);
                if (mt + _TTLGroup >= nvtime(NULL))
                         return;
                 NVArray::lock(NVcontainer::ExclLock);
                 sUpdateOverview();
                 NVArray::lock(NVcontainer::UnLock);
        } void listgroup(char *lstgrp, unsigned int f, unsigned int l);
        virtual Article *retrievearticle(unsigned int nbr);

      public:
        CNewsgroup(RServer * nsrvr, OverviewFmt * fmt,
                   const char *spooldir, const char *name):NVNewsgroup(fmt,
                                                                       spooldir,
                                                                       name)
        {
                _RServer = nsrvr;
        }

        virtual void setttl(nvtime_t grp) {
                _TTLGroup = grp;
        }

        virtual void setsize(unsigned int f, unsigned int l) {
                lock(NVcontainer::ShrdLock);
                if (f != arrfst || l != arrlst) {
                        NVNewsgroup::setsize(f, l);
                        setmtime(0, 1);
                }
                lock(NVcontainer::UnLock);
        }

        virtual void prefetchGroup(int lockgrp = 1);

        virtual void prefetchOverview(void) {
                VERB(slog.
                     p(Logger::
                       Debug) << "CNewsgroup::prefetchOverview()\n");
                NVArray::lock(NVcontainer::ExclLock);
                sUpdateOverview();
                NVArray::lock(NVcontainer::UnLock);
        }

        virtual const char *getover(unsigned int nbr) {
                updateOverview();
                return NVNewsgroup::getover(nbr);
        }

        virtual void printheaderdb(std::ostream & os,
                                   const char *header,
                                   unsigned int f = 0, unsigned int l =
                                   UINT_MAX) {
                updateOverview();
                NVNewsgroup::printheaderdb(os, header, f, l);
        }

        virtual void printlistgroup(std::ostream & os) {
                updateOverview();
                NVNewsgroup::printlistgroup(os);
        }

        virtual void printover(std::ostream & os, unsigned int nbr) {
                updateOverview();
                NVNewsgroup::printover(os, nbr);
        }

        virtual void printoverdb(std::ostream & os, unsigned int f =
                                 0, unsigned int l = UINT_MAX) {
                updateOverview();
                NVNewsgroup::printoverdb(os, f, l);
        }
};

#endif

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