The System Architecture guide accompanies the QNX realtime operating system and is intended for both application developers and end-users.
The guide describes the philosophy of QNX and the architecture used to robustly implement the OS. It covers message-passing services, followed by the details of the Neutrino microkernel, the process manager, resource managers, the Photon microGUI, and other aspects of QNX.
Note that certain features of the OS as described in this
guide may still be under development for a given release.
For the latest news and information on QNX, visit the QNX Developer's Network (qdn.qnx.com). You'll find links to many useful areas -- software downloads, a searchable knowledge base, featured articles by developers, newsgroups, technical support options, and more. |
The following table may help you find information quickly:
To find out about: | Go to: |
---|---|
OS design goals; message-passing IPC | The Philosophy of QNX |
Microkernel services | The Neutrino Microkernel |
Microkernel instrumentation | The Instrumented Microkernel |
SMP systems | SMP with QNX |
Process and memory management | Process Manager |
Linking shared objects | Dynamic Linking |
Resource managers (device drivers) | Resource Managers |
Filesystems (image, RAM, QNX 4, DOS, CD-ROM, Flash, NFS, CIFS, Ext2) | Filesystems |
Serial and parallel devices | Character I/O |
Graphical environment | The Photon microGUI |
Network subsystem | Networking Architecture |
Native QNX networking (Qnet) | Qnet Networking |
TCP/IP implementation | TCP/IP Networking |
Fault recovery | High Availability Manager |
List of functions in the QNX library | The QNX Library |
Terms used in QNX docs | Glossary |
In QNX documentation, we use a forward slash (/) as a delimiter in all pathnames, including those pointing to Windows files.
We also generally follow POSIX/UNIX filesystem conventions.