ADAPTERPERFDATA

The ADAPTERPERFDATA structure groups all of the ADAPTERCOUNTER structures for an SNA link service together into a single block. It also has a few fields used internally by the SNA Perfmon code. The SNA link driver should not change the first three members of this structure.

typedef struct adapterperfdata
{
    ULONG inuse;
    ULONG ServiceNameIndex;
    ULONG FirstCounterIndex;
    ADAPTERCOUNTER TotalBytesReceived;
    ADAPTERCOUNTER TotalBytesTransmitted;
    ADAPTERCOUNTER TotalFramesReceived;
    ADAPTERCOUNTER TotalFramesTransmitted;
    ADAPTERCOUNTER SuccessfulConnects;
    ADAPTERCOUNTER ConnectionFailures;
    ADAPTERCOUNTER TotalBytesThroughput;
    ADAPTERCOUNTER TotalFramesThroughput;
    ADAPTERCOUNTER AdapterFailures;
    ADAPTERCOUNTER reserved[11];
    ULONG pad;
} ADAPTERPERFDATA;
 

Members

inuse

A flag that indicates that the link service is using this section of shared memory.

ServiceNameIndex

An index into an array of strings describing events that can be monitored by the Perfmon functions. These strings are stored in the registry under the HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Perflib key.

FirstCounterIndex

An index into an array of events that can be monitored by the Perfmon functions.

TotalBytesReceived

The number of data bytes received per second.

TotalBytesTransmitted

The number of data bytes transmitted per second.

TotalFramesReceived

The number of data frames received per second. A frame is an information structure recognized by one of the various protocols related to SNA. Frames contain multiple bytes of data.

TotalFramesTransmitted

The number of data frames transmitted per second.

SuccessfulConnects

The number of times since startup that a successful connection has been made.

ConnectionFailures

The number of times since startup that a connection has encountered an error condition.

TotalBytesThroughput

The total number of bytes flowing through the SNA Server per second. This includes both incoming and outgoing bytes, and is a good indicator of how heavily your SNA Server is loaded.

TotalFramesThroughput

The total number of data frames flowing through the SNA Server per second. This includes both incoming and outgoing frames, and is a good indicator of how heavily your SNA Server is loaded.

AdapterFailures

The number of times since startup that a network adapter has encountered an error condition.

reserved

An array of ADAPTERCOUNTER structures for future expansion.

pad

Padding.