setpwent (BPX1SPE, BPX4SPE) — Reset the user database
Function
The setpwent callable service resets the user database for subsequent searching by the getpwent service. The next getpwent service that is used after setpwent starts searching from the beginning of the user database.
Requirements
Operation | Environment |
---|---|
Authorization: | Supervisor state or problem state, any PSW key |
Dispatchable unit mode: | Task |
Cross memory mode: | PASN = HASN |
AMODE (BPX1SPE): | 31-bit |
AMODE (BPX4SPE): | 64-bit |
ASC mode: | Primary mode |
Interrupt status: | Enabled for interrupts |
Locks: | Unlocked |
Control parameters: | All parameters must be addressable by the caller and in the primary address space. |
Format
|
AMODE 64 callers use BPX4SPE.
Parameters
- Return_value
- Returned parameter
- Type:
- Integer
- Length:
- Fullword
The name of a fullword in which the setpwent service returns 0.
Usage notes
The setpwent service is intended to be used to interrupt a sequential search of the user database from the calling task. The getpwent service performs the sequential search. When the setpwent service is called, it resets the search point for the current task in the user database to the beginning. The next getpwent service that is called from this task after this point starts searching the user database from the beginning.
Characteristics and restrictions
There are no restrictions on the use of the setpwent service.
Examples
For an example using this callable service, see BPX1SPE (setpwent) example.