https://github.com/zikani03/pgadvisorylock

Go library for acquiring and releasing PostgreSQL's Advisory Locks with added support for pgx.
https://github.com/zikani03/pgadvisorylock

advisory-locks golang postgresql

Last synced: 6 days ago
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Go library for acquiring and releasing PostgreSQL's Advisory Locks with added support for pgx.

• Host: GitHub
• URL: https://github.com/zikani03/pgadvisorylock
• Owner: zikani03
• License: mit
• Created: 2021-07-06T11:18:20.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2023-10-20T19:25:06.000Z (about 1 year ago)
• Last Synced: 2024-06-20T12:46:04.617Z (7 months ago)
• Topics: advisory-locks, golang, postgresql
• Language: Go
• Homepage:
• Size: 51.8 KB
• Stars: 2
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
pgadvisorylock

===

Go library for acquiring and releasing [PostgreSQL's Advisory Locks](https://www.postgresql.org/docs/13/explicit-locking.html#ADVISORY-LOCKS) with added support for [pgx](https://github.com/jackc/pgx).

## Use in your project

```sh

$ go get github.com/zikani03/pgadvisorylock

```

## Example Usage

```go

package main

import (

    "context"

    "github.com/zikani03/pgadvisorylock"

)

func main() {

    // conn is *sql.DB wherever you get your flavour from

    ctx := context.Context

    ok, id, err := pgadvisorylock.AcquireLock(conn, ctx, "person:1")

    if !ok {

        panic("Failed to acquire lock")

    }

    ok, err = pgadvisorylock.ReleaseLock(conn, ctx, id)

    if !ok {

        panic("Failed to release lock")

    }

    ok, id, err = pgadvisorylock.AcquireSharedLock(conn, ctx, "person:1")

    if !ok {

        panic("Failed to acquire lock")

    }

    advisoryLocks, err = pgadvisorylock.FetchAdvisoryLocks(conn, ctx)

    if err != nil {

        panic("Failed to fetch locks")

    }

    for _, l := range advisoryLocks {

        fmt.Printf("LockID:%s, ClassID:%s, PID:%s\n", string(l.ObjectID), string(l.ClassID), string(l.PID))

    }

    ok, err = pgadvisorylock.ReleaseSharedLock(conn, ctx, id)

    if !ok {

        panic("Failed to release lock")

    }

}

```

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Copyright (c) Zikani Nyirenda Mwase