void res_open(const char *res_name, void **attr_val);
You may select any name for the function.
Set the VCSAgEPInfo parameter of VCSAgSetEntryPoint() primitive to the name of the entry point's function.
In the following example, the function res_open is defined as the Open entry point.
void res_open(const char *res_name, void **attr_val) {
// Perform resource initialization, if any.
// Register for attribute change notification, if needed.
VCSAG_LOG_INIT("VCSAgStartup");
VCSAgInitEntryPointStruct(V50);
VCSAgSetEntryPoint(VCSAgEPOpen, res_open);
VCSAgSetEntryPoint(VCSAgEPMonitor, res_monitor);
VCSAgSetEntryPoint(VCSAgEPOnline, res_online);
VCSAgSetEntryPoint(VCSAgEPOffline, res_offline);
VCSAgSetEntryPoint(VCSAgEPClean, res_clean);