Method acquireLock

internal/repository/cache/lotteryDraw.go:303–311

acquireLock 尝试获取分布式锁

(ctx context.Context, lockKey, lockValue string, ttl time.Duration)

// acquireLock 尝试获取分布式锁
func (c *lotteryDrawCache) acquireLock(ctx context.Context, lockKey, lockValue string, ttl time.Duration) (bool, error) {
	// 使用 SET 命令获取锁
	ok, err := c.client.SetNX(ctx, lockKey, lockValue, ttl).Result()
	if err != nil {
		return false, err
	}

	return ok, nil
}

// releaseLock 释放分布式锁，使用 Lua 脚本确保操作的原子性
func (c *lotteryDrawCache) releaseLock(ctx context.Context, lockKey, lockValue string) error {