## Semaphore class


[Semaphore](./) implementation. Objects of this class should only be allocated using [System::MakeObject()](../../system/makeobject/) function. Never create instance of this type on stack or using operator new, as it will result in runtime errors and/or assertion faults. Always wrap this class into [System::SmartPtr](../../system/smartptr/) pointer and use this pointer to pass it to functions as argument.

```cpp
class Semaphore : public System::Threading::WaitHandle
```

## 方法

| 方法 | 描述 |
| --- | --- |
| [Release](./release/)() | 释放信号量上的锁。 |
| [Release](./release/)(int) | 释放信号量上的多个锁。 |
| virtual [Reset](./reset/)() | 将信号量设置为非信号状态。不受支持。 |
| [Semaphore](./semaphore/)(int, int) | RTTI 信息。 |
| [Semaphore](./semaphore/)(int, int, const String\&) | 创建具名信号量。 |
| [Semaphore](./semaphore/)(int, int, const String\&, bool\&) | 创建具名信号量。 |
| virtual [Set](./set/)() | 将信号量设置为已发信号状态。不受支持。 |
| [WaitOne](./waitone/)() override | 锁定信号量。如果必要，执行无限等待。 |
| [WaitOne](./waitone/)(int) override | 锁定信号量。如果必要，执行等待。 |
## 字段

| 字段 | 描述 |
| --- | --- |
| static [WaitTimeout](../waithandle/waittimeout/) | 特殊值由函数返回；否则返回数组中已发信号对象的索引，如果超时且没有任何信号。 |
## 另见

* Class [WaitHandle](../waithandle/)
* Namespace [System::Threading](../)
* Library [Aspose.Font for C++](../../)