如何在Golang中实现指针安全传递_Golang指针安全传递操作方法汇总

type SafeCounter struct {
    mu    sync.Mutex
    value int
}
<p>func (c *SafeCounter) Inc() {
c.mu.Lock()
defer c.mu.Unlock()
c.value++
}</p><p>func (c *SafeCounter) Get() int {
c.mu.Lock()
defer c.mu.Unlock()
return c.value
}

type Work struct {
    Data *string
}
<p>ch := make(chan *Work, 10)</p>
                    <div class="aritcle_card">
                        <a class="aritcle_card_img" href="/ai/2056">
                            <img src="https://img.php.cn/upload/ai_manual/000/000/000/175680118292143.png" alt="Logome">
                        </a>
                        <div class="aritcle_card_info">
                            <a href="/ai/2056">Logome</a>
                            <p>AI驱动的Logo生成工具</p>
                            <div class="">
                                <img src="/static/images/card_xiazai.png" alt="Logome">
                                <span>133</span>
                            </div>
                        </div>
                        <a href="/ai/2056" class="aritcle_card_btn">
                            <span>查看详情</span>
                            <img src="/static/images/cardxiayige-3.png" alt="Logome">
                        </a>
                    </div>
                <p>go func() {
for work := range ch {
// 处理 work.Data，处理完后不再传递
process(work)
}
}()</p><p>// 发送方创建并发送，接收方独占使用
data := "hello"
ch <- &Work{Data: &data}

var ptr unsafe.Pointer // 指向某结构体
<p>newVal := &MyStruct{Field: 42}
atomic.StorePointer(&ptr, unsafe.Pointer(newVal))</p><p>// 安全读取
current := (*MyStruct)(atomic.LoadPointer(&ptr))

func badFunc() *int {
    x := 10
    return &x // 错误！x在函数结束后被回收
}