Design Issues for a Runtime Application (MATLAB Runtime Server)

MATLAB Runtime Server

Setting the Global Error Behavior on a PC

When an untrapped error occurs on PC platforms, the Runtime Server reacts with the error behavior that you specify in the matlabrt.m file. The syntax is

```
runtime errormode mode
```

The three possible mode values and the corresponding responses to an untrapped error are in the table below.

Table 1-1: Values of mode and Responses to Untrapped Errors
mode
Response to Untrapped Error

continue
Ignore the error; do not inform the user

quit
Prompt the user to quit the application

dialog
Prompt the user to choose between ignoring the error and quitting the application

Table 1-1: **Values of mode and Responses to Untrapped Errors**
mode	Response to Untrapped Error
`continue`	Ignore the error; do not inform the user
`quit`	Prompt the user to quit the application
`dialog`	Prompt the user to choose between ignoring the error and quitting the application

The Runtime Server defaults to the dialog mode if matlabrt does not specify an error behavior; dialog is the recommended error behavior for a runtime application.

These three modes are described below. Note that the error mode setting is only effective when the application runs with the Runtime Server; if the application is running in commercial MATLAB, whether MATLAB emulates the Runtime Server or not, then untrapped errors are displayed in the command window. The difference between the Runtime Server and commercial MATLAB runtime emulation is explained in Emulating the Runtime Server. Also, the error mode setting does not apply to the execution of the matlabrt file. When executing matlabrt, the Runtime Server always halts when an error occurs.

Trapping Errors Ignore Errors