LID_T(COMMON )

Shore Programmer's Manual - 2 August 96

NAME

lid_t, lvid_t \- Logical ID Classes

SYNOPSIS

#include <lid_t.h>

// Logical Volume ID
struct lvid_t {
    // usually generated from net addr of creating server
    uint4 high;
    // usually generated from time of day when created
    uint4 low;

    lvid_t();
    lvid_t(uint4 hi, uint4 lo);
	
    operator==(const lvid_t& s) const;
    operator!=(const lvid_t& s) const;

    friend ostream& operator<<(ostream&, const lvid_t&);
    friend istream& operator>>(istream&, lvid_t&);

    static const lvid_t null;
};

// Logical ID
struct lid_t {
    lvid_t	lvid;
    serial_t    serial;

    lid_t();
    lid_t(const lvid_t& lvid_, const serial_t& serial_);
    lid_t(uint4 hi, uint4 lo, uint4 ser, bool remote);

    operator==(const lid_t& s) const;
    operator!=(const lid_t& s) const;
    friend ostream& operator<<(ostream&, const lid_t& s);
    friend istream& operator>>(istream&, lid_t& s);

    static const lid_t null;
};

typedef	lid_t lrid_t;

DESCRIPTION

Class lvid_t represents a globally unique, 8-byte long volume ID. Serial numbers, serial_t are IDs unique to the volume containing them. Class lid_t represents a complete ID for a file, index or record. It is a combination of the volume ID and serial number.

VERSION

This manual page applies to Version 1.0 of theShore software.

SPONSORSHIP

The Shore project is sponsored by the Advanced Research Project Agency, ARPA order number 018 (formerly 8230), monitored by the U.S. Army Research Laboratory under contract DAAB07-92-C-Q508.