Method and apparatus for managing application data in a shared cache of a mobile electronic device

• US 8,386,718 B2
• Filed: 11/18/2009
• Issued: 02/26/2013
• Est. Priority Date: 11/18/2009
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Research In Motion Limited (Blackberry Limited)
• Inventors: Aggarwal, Ankur
• Primary Examiner(s): KIM, HONG CHONG
• Application Number:
  US12/621,125
• Publication Number:
  US 20110119447A1
• Time in Patent Office: 1,196 Days
• Field of Search: 711/138, 711/139, 711/144, 711/130
• US Class Current: 711/144
• CPC Class Codes: G06F 12/084 with a shared cache

Abstract

According to embodiments described in the specification, a method and apparatus for managing memory in a mobile electronic device are provided. The method comprises: receiving a request to install an application; receiving at least one indication of data intended to be maintained in a shared cache; determining, based on the at least one indication, whether data corresponding to the intended data exists in the shared cache; upon a negative determination, writing the intended data to the shared cache; and repeating the receiving at least one indication, the determining and the writing for at least one additional application.

Claims

1. A method for managing application data in a mobile electronic device, the method comprising:

receiving a request to install a first application;

receiving at least one indication of data for use by the first application and intended to be maintained in a shared cache;

determining, based on the at least one indication, whether data corresponding to the intended data exists in the shared cache;

upon a negative determination, writing the intended data to the shared cache, the intended data accessible by the first application and a second application in the mobile electronic device; and

repeating the receiving at least one indication, the determining and the writing for at least one additional application.

2. The method of claim 1, comprising receiving a plurality of indications of data intended to be maintained in the shared cache;

and

for each one of the plurality of indications, determining, based on the one of the plurality of indications, whether data corresponding to the intended data exists in the shared cache; and

,

upon a negative determination, writing the intended data to the shared cache.

3. The method of claim 1, further comprising:

prior to repeating the receiving at least one indication, the determining and the writing, receiving a further request to install the at least one additional application.

4. The method of claim 1, further comprising:

prior to determining whether data corresponding to the intended data exists in the shared cache, detecting whether the shared cache exists; and

when the detection is negative, creating the shared cache.

5. The method of claim 4, wherein creating the shared cache comprises reserving a predetermined amount of storage space in a memory of the mobile electronic device.

6. The method of claim 1, wherein the intended data comprises an intended name and an intended value associated with the intended name, wherein the at least one indication comprises the intended name and wherein the determination comprises determining if a name corresponding to the intended name exists in the shared cache.

7. The method of claim 6, wherein the at least one indication comprises the intended name and the intended value, the method comprising:

upon a positive determination that a name corresponding to the intended name exists in the shared cache, assessing whether an associated value corresponding to the intended value is maintained in the shared cache; and

upon a negative assessment, overwriting the value with the intended value in the shared cache.

8. The method of claim 6, further comprising:

prior to overwriting, receiving a request to overwrite the value with the intended value.

9. A mobile electronic device comprising:

a memory for maintaining a shared cache;

a processor interconnected with the memory, the processor configured to receive a request to install a first application;

the processor further configured to receive at least one indication of data intended for use by the first application and to be maintained in the shared cache;

the processor further configured to determine, based on the at least one indication, whether data corresponding to the intended data exists in the shared cache maintained within the memory;

the processor further configured to write, upon a negative determination, the intended data to the shared cache; and

to repeat the receiving at least one indication, the determination and the writing for at least one additional application,

wherein the intended data stored in the shared cache is accessible by the first application and a second application in the mobile electronic device.

10. The mobile electronic device of claim 9, the processor being configured to receive a plurality of indications of data intended to be maintained in the shared cache;

the processor further being configured to determine, for each one of the plurality of indications, based on the one of the plurality of indications, whether data corresponding to the intended data exists in the shared cache; and

, upon a negative determination, to write the intended data to the shared cache.

11. The mobile electronic device of claim 9, the processor being further configured to receive a further request to install the at least one additional application prior to repeating the receiving at least one indication, the determination and the writing.

12. The mobile electronic device of claim 9, the processor being further configured to detect whether the shared cache exists in the memory prior to determining whether data corresponding to the intended data exists in the shared cache;

the processor further configured to create the shared cache when the detection is negative.

13. The mobile electronic device of claim 12, the processor further configured to create the shared cache by reserving a predetermined amount of storage space in the memory of the mobile electronic device.

14. The mobile electronic device of claim 9, wherein the intended data comprises an intended name and an intended value associated with the intended name, wherein the at least one indication comprises the intended name;

the processor configured to determine if a name corresponding to the intended name exists in the shared cache.

15. The mobile electronic device of claim 14, wherein the at least one indication comprises the intended name and the intended value;

the processor being further configured to assess whether an associated value corresponding to the intended value is maintained in the shared cache upon a positive determination that a name corresponding to the intended name exists in the shared cache;

the processor being further configured to overwrite the value with the intended value in the shared cache upon a negative assessment.

16. The mobile electronic device of claim 14, the processor being further configured to receive a request to overwrite the value with the intended value prior to overwriting.

17. A computer readable storage medium for storing computer readable instructions for execution by a processor, the computer readable instructions implementing the steps of:

receiving a request to install a first application;

receiving at least one indication of data for use by the first application and intended to be maintained in a shared cache;

determining, based on the at least one indication, whether data corresponding to the intended data exists in the shared cache;

upon a negative determination, writing the intended data to the shared cache, the intended data accessible by the first application and a second application included in a mobile electronic device; and

repeating the receiving at least one indication, the determining and the writing for at least one additional application.