This section describes the DBCHCL functions listed below.
| Function Name | Description |
|---|---|
| CON | Connect |
| RSUP | RunStartUp Request |
| IRQ | Initiate Request |
| IWPF | Initiate With Protocol-function |
| CRQ | Continue Request |
| CMD | Command |
| ABT | Abort |
| FET | Fetch |
| REW | Rewind and Fetch |
| ERQ | End Request |
| DSC | Disconnect |
General Notes
For each function, there is a list of the required and optional input and output arguments and a general description of how DBCHCL processes the function.
The interpretation of some of the arguments may depend on the setting of the DBCAREA options (for more information, see Setting DBCAREA Options.
For instance, input/output string pointers may be variable strings. For output strings, DBCHCL will provide an address and length if Locate-mode is in effect; otherwise, DBCHCL expects that the application has set the address of the area to which DBCHCL is to move the string.
If DBCHCL detects an error while processing, various fields will be set to help the user interpret and handle the error.