【主线待合】freeRTOS增加不阻塞的带超时信号量

RBcore/msg_center.c

@@ -327,8 +327,11 @@ int MsgCenter_ProcessWait(uint32_t uiModuleID, uint32_t uiTimeoutMs)
     // 等待信号量（有新消息到达）
     if (uiTimeoutMs > 0)
     {
-        // 带超时等待
-        Rd_SemWait(&g_astModules[iIndex].stSem, __func__, NULL);
+        // 带超时等待，超时返回 -1 让调用方继续轮询
+        if (Rd_SemWaitTimeout(&g_astModules[iIndex].stSem, uiTimeoutMs) != 0)
+        {
+            return -1;
+        }
     }
     else
     {

bspMCU/My_freeRTOS.c

@@ -114,6 +114,21 @@ void Rd_SemWait(void *_sem, const char *_pcFunc, int *_piCnt)
 	}
 }
 
+int Rd_SemWaitTimeout(void *_sem, uint32_t _uiTimeoutMs)
+{
+	rd_sem_t *pSem = (rd_sem_t *)_sem;
+	uint32_t ticks = (_uiTimeoutMs * osKernelGetTickFreq()) / 1000;
+	if (ticks == 0) ticks = 1;
+	osStatus_t status = osSemaphoreAcquire(pSem->sem_id, ticks);
+	if (status == osOK) {
+		return 0;
+	} else if (status == osErrorTimeout || status == osErrorResource) {
+		return -1;
+	} else {
+		return -2;
+	}
+}
+
 void Rd_SemPost(void *_sem, const char *_pcFunc, int *_piCnt)
 {
 	rd_sem_t *pSem = (rd_sem_t *)_sem;

library/common/include/rd_thread.h

@@ -155,6 +155,7 @@ int Rd_MutexDestroy(void *_pMutex);
 int Rd_SemInit(void *_sem, int _iPshared, int _iValue);
 void Rd_SemPost(void *_sem, const char *_pcFunc, int *_piCnt);
 void Rd_SemWait(void *_sem, const char *_pcFunc, int *_piCnt);
+int Rd_SemWaitTimeout(void *_sem, uint32_t _uiTimeoutMs);
 int Rd_SemDestroy(void *_sem);
 
 /**

library/common/rd_thread.c

@@ -55,6 +55,13 @@ WEAK void Rd_SemWait(void *_sem, const char *_pcFunc, int *_piCnt)
     return;
 }
 
+WEAK int Rd_SemWaitTimeout(void *_sem, uint32_t _uiTimeoutMs)
+{
+    (void)_sem;
+    (void)_uiTimeoutMs;
+    return -1;
+}
+
 WEAK void Rd_SemPost(void *_sem, const char *_pcFunc, int *_piCnt)
 {
     return;