- init

2 years ago · fef90c02e4
commit fef90c02e4
11 changed files with 568 additions and 0 deletions
--- a/.drone.yml
+++ b/.drone.yml
@ -0,0 +1,17 @@
+kind: pipeline
+type: docker
+name: clone
+
+steps:
+  - name: Test
+    image: golang:1.18
+    commands:
+      - go env -w GO111MODULE=on
+      - go env -w GOPROXY=https://goproxy.cn,direct
+      - go test -v ./...
+  - name: Benchmark
+    image: golang:1.18
+    commands:
+      - go env -w GO111MODULE=on
+      - go env -w GOPROXY=https://goproxy.cn,direct
+      - go test -bench=. -benchmem
--- a/.gitignore
+++ b/.gitignore
@ -0,0 +1,9 @@
+.env
+.git
+.svn
+.idea
+.vscode
+*.log
+gomod.sh
+/vendor/
+*_test.go
--- a/21
+++ b/21
@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 李光春
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
--- a/README.md
+++ b/README.md
@ -0,0 +1,17 @@
+<h1>
+<a href="https://www.dtapp.net/">Golang Lock</a>
+</h1>
+
+📦 Golang Lock
+
+[comment]: <> (go)
+[![godoc](https://pkg.go.dev/badge/go.dtapp.net/golock?status.svg)](https://pkg.go.dev/go.dtapp.net/golock)
+[![goproxy.cn](https://goproxy.cn/stats/go.dtapp.net/golock/badges/download-count.svg)](https://goproxy.cn/stats/go.dtapp.net/golock)
+[![goreportcard.com](https://goreportcard.com/badge/go.dtapp.net/golock	)](https://goreportcard.com/report/go.dtapp.net/golock)
+[![deps.dev](https://img.shields.io/badge/deps-go-red.svg)](https://deps.dev/go/go.dtapp.net/golock)
+
+#### 安装
+
+```shell
+go get -v -u go.dtapp.net/golock
+```
--- a/etcd.go
+++ b/etcd.go
@ -0,0 +1,76 @@
+package golock
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"go.etcd.io/etcd/client/v3"
+)
+
+type LockEtcd struct {
+	etcdClient *clientv3.Client // 驱动
+}
+
+func NewLockEtcd(etcdClient *clientv3.Client) *LockEtcd {
+	return &LockEtcd{etcdClient: etcdClient}
+}
+
+// Lock 上锁
+// key 锁名
+// val 锁内容
+// ttl 锁过期时间
+func (e *LockEtcd) Lock(key string, val string, ttl int64) (string, error) {
+	if ttl <= 0 {
+		return "", errors.New("长期请使用 LockForever 方法")
+	}
+	// 1、获取
+	get, err := e.etcdClient.Get(context.Background(), key)
+	if err != nil {
+		return "", errors.New("获取异常")
+	}
+	if len(get.Kvs) > 0 {
+		return "", errors.New("上锁失败，已存在")
+	}
+	// 2、申请一个lease(租约)
+	lease := clientv3.NewLease(e.etcdClient)
+	// 3、申请一个*秒的租约
+	leaseGrantResp, err := lease.Grant(context.TODO(), ttl)
+	if err != nil {
+		return "", errors.New(fmt.Sprintf("申请租约失败 %s", err))
+	}
+	// 5、获得kv api子集
+	kv := clientv3.NewKV(e.etcdClient)
+	// 4、设置
+	kv.Put(context.TODO(), key, val, clientv3.WithLease(leaseGrantResp.ID))
+	if err != nil {
+		return "", errors.New("上锁失败")
+	}
+	return val, nil
+}
+
+// Unlock 解锁
+// key 锁名
+func (e *LockEtcd) Unlock(key string) error {
+	_, err := e.etcdClient.Delete(context.Background(), key)
+	return err
+}
+
+// LockForever 永远上锁
+// key 锁名
+// val 锁内容
+func (e *LockEtcd) LockForever(key string, val string) (string, error) {
+	// 1、获取
+	get, err := e.etcdClient.Get(context.Background(), key)
+	if err != nil {
+		return "", errors.New("获取异常")
+	}
+	if len(get.Kvs) > 0 {
+		return "", errors.New("上锁失败，已存在")
+	}
+	// 2、设置
+	e.etcdClient.Put(context.TODO(), key, val)
+	if err != nil {
+		return "", errors.New("上锁失败")
+	}
+	return val, nil
+}
--- a/go.mod
+++ b/go.mod
@ -0,0 +1,28 @@
+module go.dtapp.net/golock
+
+go 1.18
+
+require (
+	github.com/go-redis/redis/v8 v8.11.5
+	go.etcd.io/etcd/client/v3 v3.5.4
+)
+
+require (
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/coreos/go-systemd/v22 v22.3.2 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	go.etcd.io/etcd/api/v3 v3.5.4 // indirect
+	go.etcd.io/etcd/client/pkg/v3 v3.5.4 // indirect
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.8.0 // indirect
+	go.uber.org/zap v1.21.0 // indirect
+	golang.org/x/net v0.0.0-20220802222814-0bcc04d9c69b // indirect
+	golang.org/x/sys v0.0.0-20220803195053-6e608f9ce704 // indirect
+	golang.org/x/text v0.3.7 // indirect
+	google.golang.org/genproto v0.0.0-20220803205849-8f55acc8769f // indirect
+	google.golang.org/grpc v1.48.0 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
+)
--- a/go.sum
+++ b/go.sum
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--- a/lock.go
+++ b/lock.go
@ -0,0 +1,28 @@
+package golock
+
+type Lock struct {
+	c chan struct{}
+}
+
+func NewLock() Lock {
+	l := Lock{}
+	l.c = make(chan struct{}, 1)
+	l.c <- struct{}{}
+	return l
+}
+
+// Lock 上锁
+func (l *Lock) Lock() bool {
+	lockResult := false
+	select {
+	case <-l.c:
+		lockResult = true
+	default:
+	}
+	return lockResult
+}
+
+// Unlock 解锁
+func (l *Lock) Unlock() {
+	l.c <- struct{}{}
+}
--- a/redis.go
+++ b/redis.go
@ -0,0 +1,67 @@
+package golock
+
+import (
+	"context"
+	"errors"
+	"github.com/go-redis/redis/v8"
+	"time"
+)
+
+type LockRedis struct {
+	redisClient *redis.Client // 驱动
+}
+
+func NewLockRedis(redisClient *redis.Client) *LockRedis {
+	return &LockRedis{redisClient: redisClient}
+}
+
+// Lock 上锁
+// key 锁名
+// val 锁内容
+// ttl 锁过期时间
+func (r *LockRedis) Lock(key string, val string, ttl int64) (string, error) {
+	if ttl <= 0 {
+		return "", errors.New("长期请使用 LockForever 方法")
+	}
+	// 1、获取
+	get, err := r.redisClient.Get(context.Background(), key).Result()
+	if err != nil {
+		return "", errors.New("获取异常")
+	}
+	if get != "" {
+		return "", errors.New("上锁失败，已存在")
+	}
+	// 2、设置
+	err = r.redisClient.Set(context.Background(), key, val, time.Duration(ttl)).Err()
+	if err != nil {
+		return "", errors.New("上锁失败")
+	}
+	return val, nil
+}
+
+// Unlock 解锁
+// key 锁名
+func (r *LockRedis) Unlock(key string) error {
+	_, err := r.redisClient.Del(context.Background(), key).Result()
+	return err
+}
+
+// LockForever 永远上锁
+// key 锁名
+// val 锁内容
+func (r *LockRedis) LockForever(key string, val string) (string, error) {
+	// 1、获取
+	get, err := r.redisClient.Get(context.Background(), key).Result()
+	if err != nil {
+		return "", errors.New("获取异常")
+	}
+	if get != "" {
+		return "", errors.New("上锁失败，已存在")
+	}
+	// 2、设置
+	err = r.redisClient.Set(context.Background(), key, val, 0).Err()
+	if err != nil {
+		return "", errors.New("上锁失败")
+	}
+	return val, nil
+}
--- a/version.go
+++ b/version.go
@ -0,0 +1,3 @@
+package golock
+
+const Version = "1.0.0"
--- a/zookeeper.go
+++ b/zookeeper.go
@ -0,0 +1 @@
+package golock