High Availability Monitors Version A.03.02 Release Notes

Writing NOF Applications

Description of the NOF API Entry Points

Chapter 294

when SNAplus2 returns control to the application, so SNAplus2 does not

use the application's callback routine.

Function Call

AP_UINT16 nof_async(

AP_UINT32 target_handle,

void * nofvcb,

NOF_CALLBACK (*comp_proc),

AP_CORR corr

);

typedef void (*NOF_CALLBACK) (

AP_UINT32 target_handle,

void * nofvcb,

AP_CORR corr

AP_UINT32 indic_length

);

typedef union ap_corr {

void * corr_p;

AP_UINT32 corr_l;

int corr_i;

} AP_CORR;

For more information about the parameters in the NOF_CALLBACK

structure, see “The Callback Routine Speciﬁed on the nof_async Entry

Point”.

Supplied Parameters

An application supplies the following parameters when it uses the

nof_async entry point:

target_handle

This parameter is supplied in one of the following

ways:

• For the following verbs, this parameter is not used;

set it to 0 (zero). If the verb completes successfully,

SNAplus2 returns the target handle as one of the

VCB parameters. The application then uses the

target handle for subsequent verbs.

— CONNECT_NODE (to access a running node, or

to access the node on a server where the

SNAplus2 software is started but the node is not