QNX System Architecture

		About This Guide
		Introduction
		Typographic conventions
		Copyright information

Chapter 1		The Philosophy of QNX
		Introduction
		What is QNX?
		QNX's microkernel architecture
		Interprocess communication (IPC)
		QNX as a network

Chapter 2		The Microkernel
		Introduction
		Interprocess communication
		IPC via messages
		IPC via proxies
		IPC via signals
		IPC across the network
		IPC via semaphores
		Process scheduling
		A word about realtime performance

Chapter 3		The Process Manager
		Introduction
		The life cycle of a process
		Process states
		Process symbolic names
		Timers
		Interrupt handlers

Chapter 4		I/O Namespace
		Introduction
		Resolving pathnames
		File descriptor namespace

Chapter 5		The Filesystem Manager
		Introduction
		What is a file?
		Regular files and directories
		Links and inodes
		Symbolic links
		Pipes and FIFOs
		Filesystem Manager performance
		Filesystem robustness
		Raw volumes
		Key components of a QNX partition
		The DOS Filesystem Manager
		CD-ROM filesystem
		Flash filesystem
		NFS filesystem
		SMB filesystem

Chapter 6		The Device Manager
		Introduction
		Device services
		Edited input mode
		Raw input mode
		Device drivers
		The QNX console
		Serial devices
		Parallel devices
		Device subsystem performance

Chapter 7		The Network Manager
		Introduction
		Network Manager responsibilities
		Microkernel/Network Manager interface
		Network drivers
		Node and network identifiers
		Choosing a network
		TCP/IP networking

Chapter 8		The Photon microGUI^® Windowing System
		Introduction
		A graphical microkernel
		The Photon event space
		Graphics drivers
		Scalable fonts
		Unicode multilingual support
		Animation support
		Printing support
		The Photon Window Manager
		Widget library
		Summary

		© QNX Software Systems Ltd. 1997 QNX, Photon microGUI, and Neutrino are registered trademarks, and IAT, Voyager, FLEET, FTL, Phindows, and PhinX are trademarks, of QNX Software Systems Ltd. All other trademarks belong to their respective owners.