60 lines
1.3 KiB
Markdown
60 lines
1.3 KiB
Markdown
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# TaskPriority
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**命名空间**: `XCEngine::Threading`
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**类型**: `enum class`
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**头文件**: `XCEngine/Threading/Task.h`
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## 概述
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`TaskPriority` 定义了任务的优先级，用于控制任务在任务系统中的执行顺序。优先级较高的任务会在优先级较低的任务之前执行。
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## 枚举值
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| 枚举值 | 数值 | 描述 |
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|--------|------|------|
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| `Critical` | 0 | 最高优先级，关键任务 |
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| `High` | 1 | 高优先级 |
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| `Normal` | 2 | 普通优先级（默认） |
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| `Low` | 3 | 低优先级 |
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| `Idle` | 4 | 最低优先级，仅在无其他任务时执行 |
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## 使用示例
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```cpp
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#include "XCEngine/Threading/TaskGroup.h"
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#include "XCEngine/Threading/Task.h"
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#include <iostream>
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using namespace XCEngine::Threading;
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int main() {
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TaskGroup group;
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group.AddTask([]() {
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std::cout << "Critical task\n";
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}, TaskPriority::Critical);
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group.AddTask([]() {
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std::cout << "High priority task\n";
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}, TaskPriority::High);
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group.AddTask([]() {
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std::cout << "Normal task\n";
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}, TaskPriority::Normal);
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group.AddTask([]() {
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std::cout << "Low priority task\n";
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}, TaskPriority::Low);
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group.Wait();
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return 0;
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}
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```
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## 相关文档
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- [TaskGroup 总览](task-group.md) - 任务组类总览
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- [ITask](../task/task.md) - 任务接口基类
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