【摘要】 分析uC/OS-Ⅱ内核的超时等待机制,证实在一定情况下超时时间间隔不准确,在时间间隔到期的情况下,内核仍有可能返回成功,不符合一般的操作系统原理,且超时等待机制在有附加的挂起操作时,处理效率低下。指出uC/OS-Ⅱ内核的超时等待机制不完善的原因,对不足之处提出改进方法。更多还原

【Abstract】 This paper analyzes the waiting-timeout mechanism of uC/OS-II kernel from source code.It indicates waiting-timeout of uC/OS-II is not correst in some cases.The kernel can return success while it is time out.System efficiency is low if kernel waiting-timeout mechanism has additional suspension operation.The reason why waiting-timeout mechanism of uC/OS-II kernel is not perfect is analyzed.A method is advanced to resolve these problems.更多还原