| 摘要 |
Proposed is a secure real-time inter-process data exchange mechanism based on memory mapped files (MMF). A modified FIFO access to the data (one head, multiple tails) is provided by pointers residing in a MMF buffer. A process writes to a data area of the buffer using head pointer, and data are read by processes using tail pointers. Only one shared data block is accessible at any given time, thus achieving secure high-performance real-time data sharing data between processes without using OS-dependent thread-synchronization techniques. The invention is implemented as OS-specific dynamic libraries that form a platform-independent software layer which hides the implementation details from the programmer. Access to the libraries is provided by a simple and easy to use API, via a limited number of high-level functions, with syntax consistent across languages (C, C++, Pascal, MATLAB) and OS platforms (Windows, Linux, MacOSX). |
