For the recent months, I was always focus on debugging in the real-time system Vxworks, and off course wasted too much time on some bugs. These bugs were tricky but all turned out to be simple after finding the root cause.There are different ways of
多任務環境中,某任務從socket接收資料,並傳給底層處理. 程式結構如下:while(1){ socket receive; Invoke other module handle the received data;}次任務每收一條資料都發給底層去處理.處理完再收下一條資料.測試結果丟資料,ethereal上看到用戶端已經發送資料,但是這個任務只收到部分資料.後來查證,每次收資料,處理資料的module會延遲幾個或者幾十毫秒.累積之後導致此任務接收資料丟失.
1. DKMUse Downloadable Kernel Module projects to manage and build modules that willexist in the kernel space.Kernel-mode development is the traditional VxWorks method of development; allthe tasks you spawn run in an unprotected environment, and all
VxMP is a VxWorks component that provides shared-memory objects dedicatedto high-speed synchronization and communication between tasks running inseparate instances of VxWorks.=================================啥叫"separate instances of
最近想做個Android的遊戲,用到libgdx,現在研究地圖這塊,製作好地圖tmx檔案後需要處理後libgdx才能載入,需要用到TiledMapPacker工具,該工具被放在gdx-tiled-preprocessor.jar裡,這破玩意可愁死我了,一路嘗試下來各種各種報錯神馬的諸如:Failed to load Main-Class manifest attribute Exception in thread "main"
Symmetric multiprocessing (SMP) is a variant of multiprocessing technology inwhich one instance of an operating system controls all processors, and in whichmemory is