在嵌入式虛擬磁帶庫(kù)(VTL)的設(shè)計(jì)中，應(yīng)用程序與內(nèi)核之間的通訊是一個(gè)核心問題。本文提出了基于共享磁盤和共享內(nèi)存的應(yīng)用程序與內(nèi)核之間的通訊方案，實(shí)現(xiàn)了嵌入式虛擬磁帶庫(kù)中的用戶界面和SCSI 控制器之間可靠的消息傳遞。實(shí)驗(yàn)表明，該通訊解決方案是可行的。
關(guān)鍵詞：虛擬磁帶庫(kù)，嵌入式，內(nèi)核，通信

Design of information communication between user space and kernel on virtual tape library based on embedded technology Xuan Zhao, Xuelei Xu, Jianwei Xing, Hong Liu （Tsinghua University, Beijing 100084） Abstract: Communication between application and kernel is a key problem in the design of virtual tape library (VTL) based on embedded technology. This paper brings forward a solution based on shared disk and memory, which can transfer message between user interface and SCSI controller reliably.
Experiments indicate that our solution is feasible.
Keywords: virtual tape library, embedded technology, kernel, communication