Put resources into boxes
Plan B is an operating system designed to work in distributed environments
where the set of available resources is different at different points in time.
It's main design guidelines are:
- All resources are perceived as a single abstraction, the box. Boxes are data containers that are operated using
copy instead of the traditional read/write. They have type and
constraints which determine how they can be used together.
- The system operates on both local and remote boxes through
the same protocol. Any implementor of such protocol can be used as
part of a Plan B system.
- Each application has its own name space and can customize it.
Customization is done by defining names for boxes, as well as the
order in which names should be searched.
- Boxes are used by name and no descriptors are kept. Applications
keep no connections to resources, they use the network to send
- Boxes can be advertised as they become available
to be automatically bound to pre-specified
names in the name spaces of applications that care about such resources.
The design owes much to Plan 9 and to
Off++. For a description of the system, you
may read a draft of
Plan B: boxes for network resources or
download a postscript instead.
1st edition user's manual can give you
a glimpse of how to write code for a Plan B application.
Source code is available under the Plan B license.
If you accept the license, enter your email and click on "Accept" to download