Database

Handles opening, reading and accessing the MaxMind GeoIP database

class Database {

MmFile dbfile;

Metadata _metadata;

Reader dataReader;

this(string filename);

const(Metadata) metadata [@property getter];

void readMetadata();

ulong findMetadataBlockStart();

DataNode lookup(string address);

DataNode lookupV4(string address);

DataNode lookupV4(ubyte[4] address);

DataNode lookupV6(string address);

DataNode lookupV6(ubyte[16] address);

DataNode lookup_impl(ubyte[] address);

DatabaseNode getNodeAt(ulong position);

}

Constructors

this this(string filename): Opens the database located at $filename on the system.

Members

Functions

findMetadataBlockStart ulong findMetadataBlockStart(): Scans the database file from the end to locate the metadata block (Yes, this is how MaxMind says to do)
getNodeAt DatabaseNode getNodeAt(ulong position): Returns a database node at $position (in node count)
lookup DataNode lookup(string address): Looks up any IP address in the database by delegating the search to the appropriate function
lookupV4 DataNode lookupV4(string address)
DataNode lookupV4(ubyte[4] address): Looks up an IPv4 address in the database, or return null if the record is not found.
lookupV6 DataNode lookupV6(ubyte[16] address): Looks up an IPv6 address in the database, or return null if the record is not found.
lookupV6 DataNode lookupV6(string address): Looks up an IPv6 address in the database, or return null if the record is not found.
lookup_impl DataNode lookup_impl(ubyte[] address): Internal implementation of the database search algorithm: takes the address as an array and searches the tree.
readMetadata void readMetadata(): Reads the database metadata from the file and sets it in the instance

Properties

metadata const(Metadata) metadata [@property getter]: Read-only accessor for the metadata

Variables

dbfile MmFile dbfile;: The memory-mapped database file for easy and fast access

Meta

Source

See Implementation

maxmind db classes

functions

parseIPv6

structs

Metadata

variables