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server/internal/library/hgrds/lock/consts.go

@@ -0,0 +1,59 @@
+// Package lock
+// @Link  https://github.com/bufanyun/hotgo
+// @Copyright  Copyright (c) 2023 HotGo CLI
+// @Author  Ms <133814250@qq.com>
+// @License  https://github.com/bufanyun/hotgo/blob/master/LICENSE
+package lock
+
+import (
+	"github.com/gogf/gf/v2/errors/gerror"
+	"time"
+)
+
+const (
+	// 加锁脚本
+	lockScript = `
+	local token = redis.call('get', KEYS[1])
+	if token then
+		return 0
+	else
+		local setResult = redis.call('setex', KEYS[1], ARGV[2], ARGV[1])
+		return setResult
+	end
+`
+
+	// 续约脚本
+	renewalScript = `
+	if redis.call('get',KEYS[1])==ARGV[2] then
+		return redis.call('expire',KEYS[1],ARGV[1])
+	end
+	return 0
+`
+
+	// 解锁脚本
+	unlockScript = `
+	if redis.call("get",KEYS[1]) == ARGV[1] then
+		return redis.call("del",KEYS[1])
+	else
+		return 2
+	end
+`
+)
+
+const (
+	// DefaultTTL 锁默认过期时间
+	DefaultTTL = time.Second * 10
+	// DefaultTryLockInterval 默认重试获取锁间隔时间
+	DefaultTryLockInterval = time.Millisecond * 100
+)
+
+var (
+	// ErrLockFailed 加锁失败
+	ErrLockFailed = gerror.New("lock failed")
+	// ErrTimeout 加锁超时
+	ErrTimeout = gerror.New("timeout")
+	// ErrNotCaller 锁持有者不是当前实例
+	ErrNotCaller = gerror.New("lock not held by the caller")
+	// ErrNotExist 锁不存在
+	ErrNotExist = gerror.New("lock does not exist")
+)