RTX5的信号量控制块没有做列表，就是独立的一个结构体变量，没法做遍历操作
信号量列表创建太简单了，没有做列表管理
/// Create and Initialize a Semaphore object.
/// \note API identical to osSemaphoreNew
static osSemaphoreId_t svcRtxSemaphoreNew (uint32_t max_count, uint32_t initial_count, const osSemaphoreAttr_t *attr) {
os_semaphore_t *semaphore;
uint8_t flags;
const char *name;
// Check parameters
if ((max_count == 0U) || (max_count > osRtxSemaphoreTokenLimit) || (initial_count > max_count)) {
EvrRtxSemaphoreError(NULL, (int32_t)osErrorParameter);
//lint -e{904} "Return statement before end of function"
return NULL;
}
// Process attributes
if (attr != NULL) {
name = attr->name;
//lint -e{9079} "conversion from pointer to void to pointer to other type"
semaphore = attr->cb_mem;
if (semaphore != NULL) {
//lint -e(923) -e(9078) "cast from pointer to unsigned int"
if ((((uint32_t)semaphore & 3U) != 0U) || (attr->cb_size < sizeof(os_semaphore_t))) {
EvrRtxSemaphoreError(NULL, osRtxErrorInvalidControlBlock);
//lint -e{904} "Return statement before end of function"
return NULL;
}
} else {
if (attr->cb_size != 0U) {
EvrRtxSemaphoreError(NULL, osRtxErrorInvalidControlBlock);
//lint -e{904} "Return statement before end of function"
return NULL;
}
}
} else {
name = NULL;
semaphore = NULL;
}
// Allocate object memory if not provided
if (semaphore == NULL) {
if (osRtxInfo.mpi.semaphore != NULL) {
//lint -e{9079} "conversion from pointer to void to pointer to other type"
semaphore = osRtxMemoryPoolAlloc(osRtxInfo.mpi.semaphore);
} else {
//lint -e{9079} "conversion from pointer to void to pointer to other type"
semaphore = osRtxMemoryAlloc(osRtxInfo.mem.common, sizeof(os_semaphore_t), 1U);
}
#ifdef RTX_OBJ_MEM_USAGE
if (semaphore != NULL) {
uint32_t used;
osRtxSemaphoreMemUsage.cnt_alloc++;
used = osRtxSemaphoreMemUsage.cnt_alloc - osRtxSemaphoreMemUsage.cnt_free;
if (osRtxSemaphoreMemUsage.max_used < used) {
osRtxSemaphoreMemUsage.max_used = used;
}
}
#endif
flags = osRtxFlagSystemObject;
} else {
flags = 0U;
}
if (semaphore != NULL) {
// Initialize control block
semaphore->id = osRtxIdSemaphore;
semaphore->flags = flags;
semaphore->name = name;
semaphore->thread_list = NULL;
semaphore->tokens = (uint16_t)initial_count;
semaphore->max_tokens= (uint16_t)max_count;
// Register post ISR processing function
osRtxInfo.post_process.semaphore = osRtxSemaphorePostProcess;
EvrRtxSemaphoreCreated(semaphore, semaphore->name);
} else {
EvrRtxSemaphoreError(NULL,(int32_t)osErrorNoMemory);
}
return semaphore;
}
如果全局动态创建方式，找到检索办法了，可以从全局动态内存里面动态检索。
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