VCSAgRegister
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VCSAgRegister

void

VCSAgRegister(const char *notify_res_name,

const char *res_name,

const char *attr_name);

This primitive requests that the agent framework notify the resource notify_res_name when the value of the attribute attr_name of the resource res_name is modified. The notification is made by calling the attr_changed entry point for notify_res_name.

Note that notify_res_name can be the same as res_name.

This primitive can be called from any entry point, but it is useful only when the attr_changed entry point is implemented. For example:

#include "VCSAgApi.h"

...

void res_open(const char *res_name, void **attr_val) {

// Register to get notified when the

// "CriticalAttr" of this resource is modified.

VCSAgRegister(res_name, res_name, "CriticalAttr");

// Register to get notified when the

// "CriticalAttr" of "CentralRes" is modified.

VCSAgRegister(res_name, "CentralRes",

"CriticalAttr");

// Register to get notified when the

// "CriticalAttr" of another resource is modified.

// It is assumed that the name of the other resource

// is given as the first ArgList attribute.

VCSAgRegister(res_name, (const char *)attr_val[0],

"CriticalAttr");

}