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AIXLink/X.25 1.1 for AIX: Guide and Reference

X25_COUNTER_READ (Read Counter) x25sioctl X.25 Device Handler Operation


Reads the value of a counter.


Note: Only user-mode processes can use counter operations.

The X25_COUNTER_READ x25sioctl operation reads the value of a counter. For this operation, the arg parameter points to the x25_counter_info structure. This structure contains the following fields:

counter_id Identifies a counter to read.
counter_value Holds the current value of the counter on return of the X25_COUNTER_READ operation.

Execution Environment

The X25_COUNTER_READ operation can be called from the process environment only.

Return Values

A return code of -1 indicates an unsuccessful operation. If -1 is returned, the kernel sets the errno global variable to one of the following values:

EFAULT Indicates a specified address is not valid.
EINVAL Indicates the counter ID does not exist.

Implementation Specifics

The X25_COUNTER_READ operation functions with an X.25 Interface Co-Processor/2 that has been correctly configured for use on a qualified network. Consult adapter specifications for more information on configuring the adapter and network qualifications.

Related Information

The X25_COUNTER_GET x25sioctl X.25 Device Handler Operation, X25_COUNTER_REMOVE x25sioctl X.25 Device Handler Operation, X25_COUNTER_WAIT x25sioctl X.25 Device Handler Operation.

The x25sioctl device handler entry point.

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