Extensible event notification mechanism

• US 20030009602A1
• Filed: 04/25/2002
• Published: 01/09/2003
• Est. Priority Date: 05/18/2001
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Sprigg, Stephen A., Jacobs, Paul E.
• Granted Patent: US 7,472,396 B2
• Time in Patent Office: Days
• US Class Current: 719/318
• CPC Class Codes: G06F 2209/543 Local
• CPC Class Codes: G06F 9/542 Event management; Broadcasting; Multicasting; Notifications

Abstract

An extensible event notification system detects certain events, and notifies requestor programs that have registered to receive such notification. The system includes a notification manager, multiple event notifier programs, multiple requester programs, a map, and a notification dictionary. When loaded by the notification manager, each event notifier program detects certain prescribed events. When advised by notifier programs of events, the notification manger consults the map to identify the requester programs registered for those events and any applicable notification parameters. Then the notification manger loads the requestor programs registered for those events, and notifies them of the occurrence of the events according to the applicable notification parameters.

Claims

1. A method for event notification, comprising operations of:

requester programs submitting respective registration requests to a notification manager, each registration request comprising a request to receive notification of one or more future event classes and including an identification of the requestor program, and identification of an notifier program corresponding to each event class;

the notification manager storing identification of the requestor programs in a map in association with contents of the registration requests;

activating a number of event notifier programs;

responsive to occurrence of each event, a notifier program corresponding to an event class of said event detecting the event and notifying a notification manager;

responsive to notification of an event from a notifier program, performing operations comprising;

the notification manager accessing the map to identify all requestor programs having submitted registration requests concerning the notifier program; and

activating the identified requestor programs and transmitting thereto a representation of the occurred event.

2. The method of claim 1, the operations further comprising:

unloading the requester program.

3. The method of claim 1, the operations further comprising:

for each activated requestor program, determining whether the requester program has submitted a stay-resident request, and if not, deactivating the requestor program.

4. The method of claim 1, where one or more of the registration requests further includes characteristics of desired event notification, comprising:

selecting a notification; and

the operations responsive to notification of an event from a notifier program further include the notification manager accessing the map to identify, for each requestor program having submitted a registration request concerning the notifier program, a notification parameter representative of the desired character of notification, wherein the transmission of a representation of the occurred event to the identified requestor programs is conducted in accordance with any applicable notification parameter.

5. The method of claim 4, the notification parameters represented by bit mask, each bit having a different preassigned significance.

6. The method of claim 4, the submitting operation being performed by the requestor programs.

7. The method of claim 4, wherein the operations further comprise initially associating IDs with each requestor program and notifier program, and wherein said identifications of the notifier programs and requestor program are provided by the IDs.

8. A method for event notification in a system that includes a notification manager, at least one requestor program, and at least one notifier program, comprising operations of:

submitting respective registration requests to the notification manger, each registration request comprising a request for a registering one of the requestor programs to receive notification of one or more events detectable by a targeted notifier program and including an identification of the registering requestor program and identification of the targeted notifier program;

the notification manager storing identification of the registering requestor programs in a map in association with contents of the respective registration requests;

activating a number of the notifier programs including at least the targeted notifier programs;

responsive to occurrence of each event detectable by one of the targeted notifier programs, the targeted notifier program detecting the event and alerting the notification manager;

responsive to each alert from one of the notifier programs, the notification manager performing operations comprising;

accessing the map to identify all requestor programs having submitted registration requests concerning the alerting notifier program; and

for each identified requester program, activating the requestor program and transmitting thereto a representation of the occurred event.

15. The circuit of claim 8, the notification parameters represented by a bit mask, each bit having a different preassigned significance.

16. The circuit of claim 8, the submitting operation being performed by the requestor programs.

17. The circuit of claim 8, where:

the operations further comprise initially associating IDs with each requester program and notifier program;

where said identifications of the notifier programs and requestor program are provided by the IDs.

9. A signal-bearing medium tangibly embodying a program of machine-readable instructions executable by a digital data processing apparatus to perform event notification operations comprising:

receiving registration requests, each registration request comprising a request for a requestor program to receive notification of one or more future event classes and including an identification of the requester program and identification of notifier program corresponding to each event class;

storing identification of the requestor programs in a map in association with contents of the registration requests;

activating a number of notifier programs each responsive to occurrence of events of a corresponding event class to detect the event and transmit a representative notification;

responsive to notification of an event from a notifier program, performing operations comprising;

accessing the map to identify all requestor programs having submitted registration requests concerning the notifier program; and

activating the identified requestor programs and transmitting thereto a representation of the occurred event.

10. A logic circuit of multiple interconnected electrically conductive elements configured to perform operations to perform event notification operations comprising:

receiving registration requests, each registration request comprising a request for a requestor program to receive notification of one or more future event classes and including an identification of the requester program and identification of notifier program corresponding to each event class;

storing identification of the requestor programs in a map in association with contents of the registration requests;

activating a number of notifier programs each responsive to occurrence of events of a corresponding event class to detect the event and transmit a representative notification;

responsive to notification of an event from a notifier program, performing operations comprising;

accessing the map to identify all requester programs having submitted registration requests concerning the notifier program; and

activating the identified requestor programs and transmitting thereto a representation of the occurred event.

11. The circuit of claim 10, where the circuit is an integrated circuit.

12. The circuit of claim 10, the operations further comprising:

unloading the requestor program.

13. The circuit of claim 10, the operations further comprising:

for each activated requestor program, determining whether the requestor program has submitted a stay-resident request, and if not, deactivating the requestor program.

14. The circuit of claim 10, where one or more of the registration requests further includes characteristics of desired event notification, comprising:

selecting a notification; and

the operations responsive to notification of an event from a notifier program further include;

the notification manager accessing the map to identify, for each requestor programs having submitted a registration request concerning the notifier program, a notification parameter representative of the desired character of notification; and

where the transmission of a representation of the occurred event to the identified requestor programs is conducted in accordance with any applicable notification parameter.

20. The apparatus of claim 19, the notification manager being further programmed to perform operations comprising:

unloading the requestor program after the activating and transmitting operations.

21. The apparatus of claim 19, the notification manager being further programmed to perform operations comprising:

after the activating and transmitting operations, determining whether the activated requestor program has submitted a stay-resident request, and if not, deactivating the requestor program.

22. The apparatus of claim 19, where the notification manager is programmed such that the receiving of registration requests further includes receiving one or more notification parameters prescribing characteristics of the event notification, comprising:

selecting a notification; and

the operations responsive to notification of an event from a notifier program further include;

the notification manager accessing the map to identify, for each requestor programs having submitted a registration request concerning the notifier program, any notification parameter, wherein the transmission of a representation of the occurred event to the identified requester programs is conducted in accordance with any applicable notification parameter.

23. The apparatus of claim 22, the notification parameters represented by bit masks, each bit having a different preassigned significance.

24. The apparatus of claim 19, further comprising:

multiple requestor programs.

18. A logic circuit of multiple interconnected electrically conductive elements configured to perform operations to perform event notification operations in a system that includes a notification manager, at least one requestor program, and at least one notifier program, the operations comprising:

submitting respective registration requests to the notification manger, each registration request comprising a request for a registering one of the requestor programs to receive notification of one or more events detectable by a targeted notifier program and including an identification of the registering requester program and identification of the targeted notifier program;

the notification manager storing identification of the registering requester programs in a map in association with contents of the respective registration requests;

activating a number of the notifier programs including at least the targeted notifier programs;

responsive to occurrence of each event detectable by one of the targeted notifier programs, the targeted notifier program detecting the event and alerting the notification manager;

responsive to each alert from one of the notifier programs, the notification manager performing operations comprising;

accessing the map to identify all requestor programs having submitted registration requests concerning the alerting notifier program; and

for each identified requester program, activating the requester program and transmitting thereto a representation of the occurred event.

19. An event notification apparatus, comprising:

multiple event notifier programs, each corresponding to a predetermined event class and responsive to occurrence of events of that event class to detect the event and notify a notification manager;

a map;

a notification manager, coupled to the notifier programs and the map, and programmed to perform operations comprising;

receiving registration requests of respective requestor programs, each registration request comprising a request to receive notification of one or more future event classes and including an identification of the requestor program, and identification of one of the notifier programs that corresponds to each event class;

storing identification of the requestor programs in a map in association with contents of the registration requests;

activating a number of the event notifier programs;

responsive to notification of an event from a notifier program, performing operations comprising;

the notification manager accessing the map to identify all requestor programs having submitted registration requests concerning the notifier program; and

activating the identified requestor programs and transmitting thereto a representation of the occurred event.

25. An event notification apparatus, comprising:

multiple event notifier programs, each corresponding to at least one predetermined event and responsive to occurrence of each corresponding event to detect the event and notify a notification manager;

a map;

a notification manager, coupled to the notifier programs and the map, and programmed to perform operations comprising;

receiving registration requests, each registration request comprising a request for a requestor program to receive notification of one or more desired events and including an identification of the requestor program and identification of one or more targeted notifier programs that correspond to the desired events;

storing identification of the requestor programs in a map in association with contents of the registration requests;

activating a number of the notifier programs;

responsive to notification of an event from a notifier program, performing operations comprising;

the notification manager accessing the map to identify all requestor programs having submitted registration requests concerning the notifier program providing said notification of said event; and

activating the identified requester programs and transmitting thereto a representation of the occurred event.

26. An event notification apparatus, comprising:

event notifier means, each corresponding to a predetermined event class and responsive to occurrence of events of that event class, for detecting the event and notify a notification manager;

a map;

notification manager means, coupled to the notifier programs and the map, for;

receiving registration requests of respective requestor programs, each registration request comprising a request to receive notification of one or more future event classes and including an identification of the requestor program, and identification of one of the notifier programs that corresponds to each event class;

storing identification of the requestor programs in a map in association with contents of the registration requests;

activating a number of the event notifier programs;

responsive to notification of an event from a notifier program, performing operations comprising;

the notification manager accessing the map to identify all requestor programs having submitted registration requests concerning the notifier program; and

activating the identified requester programs and transmitting thereto a representation of the occurred event.