Code Generation Tutorial: Difference between revisions
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=== Tutorial Overview === | === Tutorial Overview === | ||
The aim of the tutorial is to allow users to explore the approach with a relatively simple example. The example uses a shared buffer with reader and writer processes. The tutorial is presented in three stages, making use of the example projects from the download site. The example projects are, | The aim of the tutorial is to allow users to explore the approach with a relatively simple example. The example uses a shared buffer with reader and writer processes. The tutorial is presented in three stages, making use of the example projects from the download site. There are two translations performed, one is to a common language model (IL1). The second is to an Event-B project which includes a model of the implementation. The example projects are, | ||
{| | {| border="1" | ||
SharedBuffer20100819Demo | |SharedBuffer20100819Demo | ||
| | |An example project with a completed Tasking Development and IL1 model (post IL1 translation, but before Event-B translation). | ||
|- | |- | ||
|Sharedbuffer20100819Tasking | |||
| | |Same as the project above, but with Event-B model translations. This development includes a model of the implementation; this primarily includes program counters to describe flow of execution. | ||
|- | |||
|SharedBuffer20100819Tutorial | |||
|A bare project for step 1 of the tutorial. | |||
|- | |||
|sharedbuffer20100819Tutorial2 | |||
|A partially completed tasking development for steps 2 and 3 of the tutorial. | |||
|} | |} | ||
The steps will be as follows, | The steps will be as follows, | ||
* Step 1 - Create the tasking development. | * Step 1 - Create the tasking development. | ||
Revision as of 08:57, 8 December 2010
This Page is Under Construction
Tutorial Overview
The aim of the tutorial is to allow users to explore the approach with a relatively simple example. The example uses a shared buffer with reader and writer processes. The tutorial is presented in three stages, making use of the example projects from the download site. There are two translations performed, one is to a common language model (IL1). The second is to an Event-B project which includes a model of the implementation. The example projects are,
| SharedBuffer20100819Demo | An example project with a completed Tasking Development and IL1 model (post IL1 translation, but before Event-B translation). |
| Sharedbuffer20100819Tasking | Same as the project above, but with Event-B model translations. This development includes a model of the implementation; this primarily includes program counters to describe flow of execution. |
| SharedBuffer20100819Tutorial | A bare project for step 1 of the tutorial. |
| sharedbuffer20100819Tutorial2 | A partially completed tasking development for steps 2 and 3 of the tutorial. |
The steps will be as follows,
- Step 1 - Create the tasking development.
- Step 2 - Add annotations.
- Step 3 - Invoke translators.
Preliminaries
Before discussing the modelling aspects further we discuss the PrettyPrint viewers. The PrettyPrinters make the viewing of tasking models easier, and provides a quick route to source code generation. The source code can easily be pasted into an Ada source file.
The PrettyPrint View of a Tasking Development
From the top-menu select Window/Show View/Other/Tasking Pretty Printer.
Note that the Tasking PrettyPrinter may have to be closed when editing the Tasking Development, since it can give rise to exceptions. The PrettyPrinter would need further work to make it robust, however it is intended only as a short-term solution.
Open the SharedBuffer20100819Demo Project and switch to the Resource Perspective. Open the .tasking model and inspect it. Clicking on the Main, Machine or Event nodes updates the pretty print window.
Viewing Source Code
aka. The PrettyPrint View of an IL1 Model.
From the top-menu select Window/Show View/Other/IL1 Pretty Printer.
Open the SharedBuffer20100819Demo Project and switch to the Resource Perspective. Open the .il1 model and inspect it. Clicking on the Protected, Main Entry, or Task nodes updates the pretty print window.
Creating The Tasking Development
From the Event-B Perspective,
Open the SharedBuffer20100819Tutorial Project.
Select the following Machines: Reader, Writer and Shared.
Right-click and select Make Tasking Development/Generate Tasking Development.
The new Tasking Development will not be visible in the Event-B perspective, change to the resource perspective, open and inspect the new .tasking file. The Tasking Development contains the machines that we wish to provide implementations for. In order to introduce the new concepts we have prepared a partially complete development.
Go to the Project SharedBuffer20100819Tutorial2 to begin the next step.
