Interprocess Communication Pipe Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing interprocess communication mechanisms in operating systems face security and reliability issues with shared memory and inefficiencies with the pipe approach, which involves data copying, reducing performance.
Innovation Solution
The system employs a method that recognizes asynchronous write and read requests to a pipe, using a Direct Memory Access (DMA) engine or CPU-based mechanisms to transfer data efficiently, selecting the most efficient mechanism based on availability, load, and data size, thereby avoiding unnecessary copying and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If shared memory is used for interprocess communication, then data transfer efficiency is improved, but security and reliability deteriorate due to potential memory alteration by malicious or malfunctioning processes
Solution Approach 1:
The patent introduces a pipe as an intermediary mechanism between sending and receiving processes. The pipe acts as a buffered channel that receives data from the sending process and delivers it to the receiving process, preventing direct memory access between processes. This mediator structure maintains data transfer efficiency while eliminating the security risks associated with shared memory, as the pipe buffer isolates process memory spaces.
2Reliability
If pipe approach is used for interprocess communication, then security and reliability are improved, but data transfer efficiency deteriorates due to required data copying
Solution Approach 1:
The patent implements dynamic selection between different data transfer mechanisms (pipe-based copying vs. shared memory) based on real-time system conditions. The system monitors factors such as process trust levels, memory availability, and performance requirements to dynamically switch between secure but slower pipe copying and efficient but riskier shared memory access. This dynamic adaptation allows the system to optimize data transfer efficiency while maintaining security based on current operational context.
3Productivity
If dynamic mechanism selection is implemented, then overall system efficiency is improved, but device complexity increases due to multiple IPC mechanisms and selection logic
Solution Approach 1:
The patent creates a universal interprocess communication framework that handles multiple communication scenarios through a single unified interface. The system provides a common API that abstracts the underlying complexity of multiple IPC mechanisms (pipes, shared memory, messages) behind a consistent interface. This multi-functional approach allows the system to select and switch between different mechanisms automatically while presenting a simplified interface to applications, thereby reducing perceived complexity despite the underlying multi-mechanism architecture.
Data Source
AI summary
A system and methods for sending data from one process to another process (i.e., interprocess communication) are disclosed. In accordance with one embodiment, an operating system recognizes a request by a sending process to perform an asynchronous write to a pipe, and a request by a receiving process to perform an asynchronous read from the pipe, occurring in either order. The operating system then selects one of a plurality of mechanisms for providing the data to the receiving process.