NVlist.h

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#ifndef _NVlist_h_
#define _NVlist_h_

#include"NVcontainer.h"

#include<iostream>

class NVlist:public NVcontainer {
      protected:
        NVlist(void):NVcontainer() {
        } NVlist(const char *dbname, int flags =
                 0):NVcontainer(dbname, flags) {
        }
        struct Record {
                unsigned long next;     /* 64 */
                unsigned long szdata;   /* 64 */
                // Data follows here
                char *datap() {
                        return ((char *) this) + sizeof(Record);
        }};

        Record *o2r(nvoff_t o) {
                return (Record *) (o ? mem_p + o : NULL);
        }
        nvoff_t r2o(Record * r) {
                return r ? (char *) r - mem_p : 0;
        }

        int sis_empty(nvoff_t proot) {
                return *(nvoff_t *) (mem_p + proot) == 0;
        }
        void sprepend(nvoff_t proot, const char *data, size_t szdata);
        void sappend(nvoff_t proot, const char *data, size_t szdata);
        void sremove(nvoff_t proot);
        void sclear(nvoff_t proot);
        void sprint(nvoff_t proot, std::ostream & os);
};

#endif

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