resolver

Documentation

Overview

Package resolver provides deterministic port assignment using FNV-1a hashing. Given a project ID and service name, it computes a stable port number in the range 10000-49151. When collisions occur, linear probing finds the next available port.

Index

• Constants
• func Resolve(projectID, service string) int
• func ResolveAvailable(projectID, service string, isPortTaken func(int) bool) (int, error)

Constants

const MorthNumber = 6678

MorthNumber is the signature port for morth itself (M=6, O=6, R=7, T=8 on a phone keypad). Used as an Easter egg in "morth get morth".

Functions

func Resolve

func Resolve(projectID, service string) int

Resolve computes a deterministic port for the given project ID and service name using FNV-1a hashing. The result is mapped to the range 10000-49151. This function does not check whether the port is actually available.

func ResolveAvailable

func ResolveAvailable(projectID, service string, isPortTaken func(int) bool) (int, error)

ResolveAvailable computes a deterministic port and then uses linear probing to find the first port that is not taken. The isPortTaken callback should check both the registry and OS-level availability. Returns an error if the entire port range is exhausted without finding a free port.