基于RT-thread实现,一个事件集,三个线程,线程1优先级7,而线程2优先级8,线程3优先级低于线程1;线程 thread1 进入后接收事件组合·事件 3或事件5,接收到事件时候进行 100ms延时,然后接收事件组合·事件 3与事件 5,接收完成后结束线程; 线程 thread2 进入后发送事件 3,延时 200ms; 发送事件 5,延时 200ms; 发送事件 3,完成后结束线程; 线程3也是进行接收事件5和事件3的或事件和与事件; 实现thread2_send_event广播3/5OR事件和3/5 AND事件;thread1_recv_event;,thread3_recv_event两个线程都能接收到上述两个事件。 要求条理清晰,逻辑明了
时间: 2024-03-08 17:47:19 浏览: 69
基于RT-thread实现一个事件集,包含三个线程:线程1、线程2和线程3。线程1的优先级为7,线程2的优先级为8,线程3的优先级低于线程1。
线程1进入后接收事件组合·事件3或事件5,接收到事件时进行100ms延时,然后接收事件组合·事件3与事件5,接收完成后结束线程。
线程2进入后发送事件3,延时200ms,发送事件5,延时200ms,发送事件3,完成后结束线程。
线程3也是进行接收事件3和事件5的或事件和与事件。
为了实现thread2_send_event广播3/5 OR事件和3/5 AND事件,以及thread1_recv_event和thread3_recv_event两个线程都能接收到上述两个事件,可以按照以下步骤进行:
1. 定义事件集合:
```c
#define EVENT_3 (1 << 0)
#define EVENT_5 (1 << 1)
#define EVENT_OR (EVENT_3 | EVENT_5)
#define EVENT_AND (EVENT_3 & EVENT_5)
```
2. 定义线程函数:
```c
static void thread1_entry(void* parameter)
{
rt_uint32_t e;
e = rt_event_recv(&event, EVENT_OR, RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER);
if (e == EVENT_OR)
{
rt_thread_delay(100);
e = rt_event_recv(&event, EVENT_AND, RT_EVENT_FLAG_AND | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER);
if (e == EVENT_AND)
{
rt_kprintf("Thread1 received EVENT_AND\n");
}
}
}
static void thread2_entry(void* parameter)
{
rt_event_send(&event, EVENT_3);
rt_thread_delay(200);
rt_event_send(&event, EVENT_5);
rt_thread_delay(200);
rt_event_send(&event, EVENT_3);
}
static void thread3_entry(void* parameter)
{
rt_uint32_t e;
while(1)
{
e = rt_event_recv(&event, EVENT_OR, RT_EVENT_FLAG_OR | RT_EVENT_FLAG_CLEAR, RT_WAITING_FOREVER);
if (e == EVENT_3)
{
rt_kprintf("Thread3 received EVENT_3\n");
}
else if (e == EVENT_5)
{
rt_kprintf("Thread3 received EVENT_5\n");
}
}
}
```
3. 创建线程并启动:
```c
rt_thread_t thread1 = RT_NULL;
rt_thread_t thread2 = RT_NULL;
rt_thread_t thread3 = RT_NULL;
rt_event_t event;
int main(void)
{
rt_err_t result;
event = rt_event_create("event", RT_IPC_FLAG_FIFO);
thread1 = rt_thread_create("thread1", thread1_entry, RT_NULL, 512, 7, 10);
if (thread1 != RT_NULL)
{
rt_thread_startup(thread1);
}
thread2 = rt_thread_create("thread2", thread2_entry, RT_NULL, 512, 8, 10);
if (thread2 != RT_NULL)
{
rt_thread_startup(thread2);
}
thread3 = rt_thread_create("thread3", thread3_entry, RT_NULL, 512, 6, 10);
if (thread3 != RT_NULL)
{
rt_thread_startup(thread3);
}
return 0;
}
```
这样,线程1会接收事件组合·事件3或事件5,当接收到事件时进行100ms延时,然后接收事件组合·事件3与事件5接收完成后结束线程;线程2会发送事件3,延时200ms,发送事件5,延时200ms,发送事件3,完成后结束线程;线程3会一直接收事件,并且可以接收到thread2_send_event广播3/5 OR事件和3/5 AND事件,以及thread1_recv_event和thread3_recv_event两个线程都能接收到上述两个事件。
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