Legacy Document
Important: The information in this document is obsolete and should not be used for new development.
Important: The information in this document is obsolete and should not be used for new development.
Low-Level Volume Access Routines
This section describes the low-level routines for accessing volumes. These routines exchange parameters with your application through a parameter block of typeParamBlock,HParamBlock, or WDPBRec. When you call a low-level routine, you
pass the address of the appropriate parameter block to the routine.Some low-level routines for accessing volumes can run either asynchronously or synchronously. Each of these routines comes in three versions: one version requires the
asyncparameter and two have the suffixAsyncorSyncadded to their names. For more information about the differences between the three versions, see "Low-Level File Access Routines" on page 2-120.Only the first version of these routines is documented in this section. See "Summary of the File Manager," beginning on page 2-240, for a listing that includes all three versions.
- Assembly-Language Note
- See the assembly-language note on page 2-120 for details on calling these routines from assembly language.
Subtopics
- Mounting and Unmounting Volumes
- Updating Volumes
- Obtaining Volume Information
- Manipulating the Default Volume