According to the micro - kernel architecture , the kernel is divided into four modules : task handling , semaphore , message queue handling , exception and interrupt handling , more , the lock issue is added for reentry avoid 按照微內(nèi)核架構(gòu)的思想,將內(nèi)核分為任務(wù)處理,信號(hào)量,消息隊(duì)列,中斷及異常處理四個(gè)主要模塊,同時(shí)對(duì)軟件上防止重入的鎖機(jī)制進(jìn)行單獨(dú)地分析。