嵌入式系统环形缓冲区快速读写方法的设计与实现

Design and Implementation of Fast Reading and Writing Method for Ring Buffer in Embedded Systems

针对常用环形缓冲区读写数据运行效率低的弊端,提出了一种快速读写环形缓冲区数据的方法。在读写缓冲区数据时,通过位与逻辑运算修改读写指针值,利用读写指针的差值作为缓冲区有效数据个数实现环形缓冲区状态判断。通过仿真测试实验和测试数据分析,这种快速读写环形缓冲区的方法可以显著提高系统运行效率。

In view of the low efficiency of reading and writing data in the common ring buffer,a fast method for reading and writing ring buffer data is proposed.When reading and writing buffer data,modify the read and write pointer value through bit and logic operations,and use the difference between the read and write pointers as the number of effective data in the buffer to determine the status of the circular buffer.Through simulation testing experiments and data analysis,this fast method of reading and writing ring buffers can significantly improve the efficiency of system operation.