The DLC_TRACE ioctl operation is selectable through the fp_ioctl kernel service or the ioctl subroutine. It can be called from the process environment only.
The following parameter block traces link station (LS) activity for short or long activities:
The fields of this ioctl operation are:
Field | Description |
---|---|
gdlc_sap_corr | Contains the GDLC SAP correlator. The correlator returned by GDLC when the SAP was enabled by the user. This correlator identifies the user SAP to the GDLC protocol process. |
gdlc_ls_corr | Contains the GDLC LS correlator. The correlator returned by GDLC when the LS was started by the user. This correlator identifies the user LS to the GDLC protocol process. |
trace_chan | Specifies the trace channel number obtained from the trcstart subroutine. This field is only valid if the DLC_TRCO indicator is set active. |
flags | Specifies trace flags. The following flags are supported: |