From fef90c02e47ca3c56e428012c695cc4a8238f166 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E6=9D=8E=E5=85=89=E6=98=A5?= Date: Thu, 4 Aug 2022 09:50:20 +0800 Subject: [PATCH] - init --- .drone.yml | 17 +++ .gitignore | 9 ++ LICENSE | 21 ++++ README.md | 17 +++ etcd.go | 76 +++++++++++++ go.mod | 28 +++++ go.sum | 301 +++++++++++++++++++++++++++++++++++++++++++++++++++ lock.go | 28 +++++ redis.go | 67 ++++++++++++ version.go | 3 + zookeeper.go | 1 + 11 files changed, 568 insertions(+) create mode 100644 .drone.yml create mode 100644 .gitignore create mode 100644 LICENSE create mode 100644 README.md create mode 100644 etcd.go create mode 100644 go.mod create mode 100644 go.sum create mode 100644 lock.go create mode 100644 redis.go create mode 100644 version.go create mode 100644 zookeeper.go diff --git a/.drone.yml b/.drone.yml new file mode 100644 index 0000000..c56c479 --- /dev/null +++ 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 \ No newline at end of file diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..4fc62b0 --- /dev/null +++ b/.gitignore @@ -0,0 +1,9 @@ +.env +.git +.svn +.idea +.vscode +*.log +gomod.sh +/vendor/ +*_test.go diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..ff84bbf --- /dev/null +++ b/LICENSE @@ -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. diff --git a/README.md b/README.md new file mode 100644 index 0000000..5547b90 --- /dev/null +++ b/README.md @@ -0,0 +1,17 @@ +

+Golang Lock +

+ +📦 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 +``` \ No newline at end of file diff --git a/etcd.go b/etcd.go new file mode 100644 index 0000000..2e0f7cf --- /dev/null +++ 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 +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..bdebef1 --- /dev/null +++ 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 +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..f5583c8 --- /dev/null +++ b/go.sum @@ -0,0 +1,301 @@ +cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/alecthomas/template 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@@ -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{}{} +} diff --git a/redis.go b/redis.go new file mode 100644 index 0000000..d082511 --- /dev/null +++ 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 +} diff --git a/version.go b/version.go new file mode 100644 index 0000000..5f87b8d --- /dev/null +++ b/version.go @@ -0,0 +1,3 @@ +package golock + +const Version = "1.0.0" diff --git a/zookeeper.go b/zookeeper.go new file mode 100644 index 0000000..6defed6 --- /dev/null +++ b/zookeeper.go @@ -0,0 +1 @@ +package golock