heimdall

package
Version: v0.0.0-...-6cc0d21 Latest Latest
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Published: Sep 4, 2022 License: Apache-2.0 Imports: 6 Imported by: 0

Documentation

Overview

Package heimdall manages the acquisition of a lock from PostgreSQL via the `pg_try_advisory_lock(int, int)` function.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Lock

type Lock struct {
	Database  *sql.DB
	Namespace int32
	Name      int32
}

Lock represents the components of a `pg_try_advisory_lock` lock.

func New

func New(database, namespace, name string) (lock *Lock, err error)

New establishes a connection to the PostgreSQL database with a connection string and creates a Lock.

func (*Lock) Acquire

func (l *Lock) Acquire() (lockStatus bool, err error)

Acquire attempts to acquire a lock from PostgreSQL using `pg_try_advisory_lock`.

func (*Lock) Release

func (l *Lock) Release()

Release closes the connection to the database, which releases the lock.

Source Files

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