TAILIEUCHUNG - Lecture Operating systems: Lesson 8 - Dr. Syed Mansoor Sarwar

Lecture Operating systems: Lesson 8 - Dr. Syed Mansoor Sarwar. The main topics covered in this lesson include: interprocess communication (IPC) and process synchronization; UNIX/Linux IPC tools (pipe, named pipe—FIFO, socket, message queue, shared memory); use of pipe; . | Operating Systems Lecture 8 Agenda for Today Review of previous lecture Interprocess communication IPC and process synchronization UNIX Linux IPC tools pipe named pipe FIFO socket message queue shared memory Use of pipe Recap of the lecture 28 April 2022 Copyright Virtual University of Pakistan Review of Lecture 7 The wait and exec system calls and sample code Cooperating processes Producer-consumer problem 28 April 2022 Copyright Virtual University of Pakistan Interprocess Communication IPC Mechanism for processes to communicate and to synchronize their actions. Message system processes communicate with each other without resorting to shared variables. 28 April 2022 Copyright Virtual University of Pakistan Interprocess Communication IPC IPC facility provides two operations Send message message size fixed or variable Receive message 28 April 2022 Copyright Virtual University of Pakistan Interprocess Communication IPC If P and Q wish to communicate they need to establish a communication link between them exchange messages via send receive 28 April 2022 Copyright Virtual University of Pakistan Interprocess Communication IPC Implementation of communication link physical . shared memory hardware bus logical . logical properties 28 April 2022 Copyright Virtual University of Pakistan Implementation Questions How are links established Can a link be associated with more than two processes How many links can there be between every pair of communicating processes 28 April 2022 Copyright Virtual University of Pakistan Implementation Questions What is the capacity of a link Is the size of a message that the link can accommodate fixed or variable Is a link unidirectional or bi- directional 28 April 2022 Copyright Virtual University of Pakistan Direct Communication Processes must name each other explicitly send P message send a message to process P Receive Q message receive a message from process Q 28 April 2022 Copyright Virtual University of Pakistan Direct .

• Hệ điều hành
• Lecture Operating systems
• Bài giảng Hệ điều hành
• Operating systems
• Interprocess communication
• Process synchronization
• UNIX/Linux IPC tools
• Lecture Advanced Operating Systems
• Advanced Operating Systems
• Bài giảng Hệ điều hành nâng cao
• Server operating systems
• Multiprocessor operating systems
• PC operating systems
• Main frame operating systems
• Real time operating systems
• Structure of operating systems
• Distributed operating systems
• Memory management
• Embedded systems
• Modern operating systems
• Evolution of operating systems
• Memory protection
• File systems
• Characteristics of real time operating systems
• Real time scheduling
• Hệ điều hành
• Distributed systems
• Network operating systems
• Resource management
• User programs
• Computing environments
• Monolithic structure
• Implementing processes
• Scheduling policies
• Deadlock detection
• Handling deadlocks
• Message passing
• Implementing message passing
• Virtual memory
• Virtual memory manager
• File operations
• Distributed control algorithms
• Election algorithms
• Distributed system security
• Message security
• Networking essentials plus
• Lecture Networking essentials plus
• Novell operating systems
• Microsoft network operating systems
• Operating system
• Operating system concept
• Operating systems design
• Operating systems capabilities
• Network operating system
• Operating system structures
• Operating system design
• Operating system services
• Internalsand design principles
• Computer system
• Operating system objectives