Resource Type Functions

Together these functions access information about a resource type registered with the RGM.

• scha_resourcetype_open(3HA), scha_resourcetype_get(3HA), scha_resourcetype_close(3HA)- The scha_resourcetype_open function initializes access to a resource and returns a handle for scha_resourcetype_get, which accesses the resource type information. The scha_resourcetype_close function invalidates the handle and frees memory allocated for scha_resourcetype_get return values.

  A resource type can change--through cluster reconfiguration or administrative action--after scha_resourcetype_open returns the resource type's handle, in which case the information scha_resourcetype_get obtains through the handle could be inaccurate. In cases of cluster reconfiguration or administrative action on a resource type, the RGM returns the scha_err_seqid error code to scha_resourcetype_get to indicate information about the resource type might have changed. This is a non-fatal error message--the function returns successfully. You can choose to ignore the message and accept the returned information, or you can close the current handle and open a new handle to access information about the resource type.

  A single man page describes these three functions. You can access this man page through any of the individual functions, scha_resourcetype_open(3HA) scha_resourcetype_get(3HA), or scha_resourcetype_close(3HA).