| Lines 4-6 were replaced by lines 4-7 |
| - one list when adding a new feature. Let us start with an |
| - example: You have written a new environment driver, and you |
| - want to add it to the system... |
| + one list when adding a new feature. Let us look at the |
| + difference when adding a command or driver. Before using this |
| + scheme, there were many different places in psi/psi.c where |
| + modifications had to be added: |
| Line 8 was replaced by lines 9-20 |
| - !Adding a new feature |
| + * when adding a new command |
| + ** prototype declaration of the command function or include |
| + statement |
| + ** inserting the command to the AddPsiCommands function |
| + ** if it is a startup command, inserting the command to |
| + the RemovePsiCommands function |
| + * when adding a new driver |
| + ** prototype declaration of the driver creation function or |
| + include statement |
| + ** adding a "else if" clause to the CreatePsiXXX function |
| + ** in the case of an envitonment driver, also add an "else if" |
| + clause to the ConfigureController function. |
| At line 9 added 11 lines. |
| + With the new scheme, for a module one has one init function, |
| + with prototype "void (void)" placed in the source file of the module. |
| + In this function, for standalone commands, either AddIniCmd[1] or |
| + AddCmd[1] is called to insert a startup or normal command. To create |
| + a new driver, use either the MakeDriver function, if you want |
| + to use the MakeObject[2] command to create the driver, or the functions |
| + MakeInitializer/GetInitializer[2], if you want to do use an other |
| + factory command. |
| + |
| + [#1] SCinter.h |
| + [#2] initializer.h |
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