METHOD AND APPARATUS FOR PROVIDING AN AGGREGATE VIEW OF ENUMERATED SYSTEM RESOURCES FROM VARIOUS ISOLATION LAYERS

• US 20060070030A1
• Filed: 09/30/2004
• Published: 03/30/2006
• Est. Priority Date: 09/30/2004
• Status: Active Grant

• Current Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Original Assignee: Citrix Systems, Inc. (Cloud Software Group)
• Inventors: Mazzaferri, Richard James, Laborczfalvi, Lee George, Borzycki, Andrew Gerard, Roychoudhry, Anil, Chin, Huai Chiun, Muir, Jeffrey Dale
• Granted Patent: US 8,171,479 B2
• Time in Patent Office: Days
• US Class Current: 717/120
• CPC Class Codes: G06F 8/61 Installation
• CPC Class Codes: G06F 9/52 Program synchronisation; Mutual exclusion, e.g. by means of semaphores

Abstract

A method for presenting an aggregate view of native resources includes the step of enumerating a plurality of system-scoped native resources provided by a system scope. A plurality of application-scoped native resources provided by an application isolation scope are enumerated, some of which correspond to some of the plurality of system-scoped resources. For one of the plurality of system-scoped resources, the existence of a corresponding one of the plurality of application-scoped resources is determined and the corresponding one of the plurality of application-scoped resources is included in an aggregate view of native resources.

Claims

1. A method for presenting an aggregate view of native resources, the method comprising the steps of:

enumerating a plurality of system-scoped native resources provided by a system scope;

enumerating a plurality of application-scoped native resources provided by an application isolation scope, some of the plurality of application-scoped resources corresponding to some of the plurality of system-scoped resources;

determining, for one of the plurality of system-scoped resources, the existence of a corresponding one of the plurality of application-scoped resources; and

including the corresponding one of the plurality of application-scoped resources in an aggregate view of native resources.

2. The method of claim 1 wherein step (c) comprises determining, for one of the plurality of system-scoped resources, that a corresponding one of the plurality of application-scoped resources does not exist.

3. The method of claim 2 wherein step (d) comprises including the one of the plurality of system-scoped resources in an aggregate view of native resources.

4. The method of claim 1 further comprising:

(e) enumerating a plurality of user-scoped native resources provided by a user isolation scope, some of the plurality of user-scoped resources corresponding to some of the plurality of system-scoped resources;

(f) determining, for one of the plurality of system-scoped resources, the existence of a corresponding one of the plurality of user-scoped resources; and

(g) including the corresponding one of the plurality of user-scoped resources in an aggregate view of native resources.

5. The method of claim 4 wherein step (f) comprises determining, for one of the plurality of system-scoped resources, that a corresponding one of the plurality of user-scoped resources does not exist.

6. The method of claim 5 wherein step (g) comprises including the one of the plurality of system-scoped resources in an aggregate view of system-scoped resources.

7. The method of claim 1 wherein step (c) comprises determining, for one of the plurality of system-scoped resources, that a corresponding one of the plurality of application-scoped resources indicates the resource is deleted.

8. The method of claim 7 wherein step (d) comprises removing the system-scoped resource from the aggregate view of system-scoped resources.

9. The method of claim 4 wherein step (f) comprises determining, for one of the plurality of system-scoped resources, that a corresponding one of the plurality of user-scoped resources indicates the resource is deleted.

10. The method of claim 9 wherein step (g) comprises removing the system-scoped resource from the aggregate view of system-scoped resources.

11. The method of claim 1 further comprising the step of intercepting, by one of a file system driver, a mini-driver, a user mode hooking mechanism, and a kernel mode hooking mechanism, a request to enumerate a file system comprising system-scoped resources.

12. The method of claim 1 further comprising the step of intercepting a request to enumerate a plurality of registry entries.