System and method for virtual parallel resource management

• US 9,357,016 B2
• Filed: 10/18/2013
• Issued: 05/31/2016
• Est. Priority Date: 10/18/2013
• Status: Active Grant

• Current Assignee: Damaka, Inc.
• Original Assignee: Damaka, Inc.
• Inventors: Chaturvedi, Sivakumar, Gundabathula, Satish, Krishnan, Rajaraman
• Primary Examiner(s): Khan, Aftab N.
• Application Number:
  US14/057,872
• Publication Number:
  US 20150113119A1
• Time in Patent Office: 956 Days
• Field of Search: 709/204, 709/205
• US Class Current: 1/1
• CPC Class Codes: H04L 47/741 Holding a request until resources become available
• CPC Class Codes: H04L 65/4015 where at least one of the additional parallel sessions is real time or time sensitive, e.g. white board sharing, collaboration or spawning of a subconference
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/142 Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols

Abstract

An improved system and method are disclosed for providing virtual parallel access to a shared resource. In one example, the method includes receiving a request from a device to take control of the shared resource. After determining that another device is currently in control of the shared resource, a timer is started. Control of the shared resource will automatically pass from the device currently in control to the requesting device when the timer expires. Input received from the device currently in control is executed. Input received from the device that has requested control is buffered and executed once control is transferred.

Claims

1. A method comprising:

receiving, by a first device of a plurality of devices involved in a collaboration session that uses a shared resource, first input from a second device of the plurality of devices, wherein the first input represents a request to take control of the shared resource;

determining, by the first device, that a third device of the plurality of devices is currently in control of the shared resource;

receiving, by the first device, a locked indicator prior to starting a timer, wherein the locked indicator signifies that control cannot be transferred from the third device;

receiving, by the first device, an unlocked indicator following the receipt of the locked indicator, wherein the unlocked indicator signifies that control can be transferred from the third device and wherein the timer is started after receiving the unlocked indicator;

starting the timer, by the first device, wherein control of the shared resource will automatically pass from the third device to the second device when a time period defined by the timer expires;

executing, by the first device, second input received from the third device after the timer has been started and before the time period expires, wherein the second input represents at least one action to be taken using the shared resource;

sending, by the first device, a result obtained by executing the at least one action represented by the second input to each of the plurality of devices;

buffering, by the first device, third input received from the second device after the timer has been started and before the time period expires, wherein the third input represents at least one action to be taken using the shared resource; and

executing, by the first device, the at least one action represented by the third input after control is passed from the third device to the second device;

sending, by the first device, a result obtained by executing the at least one action represented by the third input to each of the plurality of devices;

receiving, by the first device, fourth input from the second device, wherein the fourth input is received before the first input and while the third device is in control of the shared resource, and wherein the fourth input represents at least one action to be taken using the shared resource; and

ignoring, by the first device, the fourth input.

2. The method of claim 1 further comprising determining, by the first device, whether the second input includes a restricted action, wherein the restricted action is ignored and not executed.

3. The method of claim 1 wherein the first device is sharing the shared resource, the method further comprising taking control of the shared resource from any other device of the plurality of devices that currently has control.

4. The method of claim 1 further comprising sending, by the first device, a message to the plurality of devices to inform the plurality of devices that the second device is now in control of the shared resource.

5. The method of claim 1 further comprising sending, by the first device, a message to the third device indicating that the third device will lose control of the shared resource when the time period expires.

6. The method of claim 1 further comprising receiving, by the first device, a message from the third device indicating that the third device relinquishes control to the second device prior to the expiration of the time period.

7. The method of claim 1 further comprising taking control of the shared resource, by the first device, after control is passed from the third device to the second device and the second device leaves the collaboration session without passing control to another device of the plurality of devices.

8. The method of claim 1 wherein access to the shared resource by the first device is handled by the first device in an identical manner as access by any other device of the plurality of devices.

9. The method of claim 1 wherein the shared resource is user-controllable and wherein the first, second, and third input correspond to user input.

10. The method of claim 9, wherein the shared resource includes a user interface device.

11. The method of claim 1 further comprising:

receiving, by the first device, fourth input from the third device, wherein the fourth input represents a request to take control of the shared resource after control of the resource has passed to the second device; and

determining whether a cooling off period has expired, wherein the second device cannot gain control of the shared resource until the cooling off period has expired.

12. The method of claim 11 wherein the cooling off period is applied to each of the plurality of devices.

13. The method of claim 11 wherein the cooling off period is applied only to the second device.

14. A method comprising:

monitoring, by a first device of a plurality of devices involved in a collaboration session that uses a shared resource, a state of each of the plurality of devices as one of an owner state, a not owner state, a gaining ownership state, and a losing ownership state;

receiving, by the first device, first input from a second device of the plurality of devices, wherein the first input represents a request to take control of the shared resource;

identifying, by the first device, that the second device is in the not owner state and that a third device of the plurality of devices is currently in the owner state, wherein the not owner state indicates that the second device is currently not in control of the shared resource and wherein the owner state indicates that the third device is currently in control of the shared resource;

starting a timer, by the first device, wherein control of the shared resource will automatically pass from the third device to the second device when a transition period defined by the timer expires;

modifying, by the first device, the state of the second device from the not owner state to the gaining ownership state, wherein second input received from the second device while in the gaining ownership state is buffered by the first device as the second input is received and not sent to each of the plurality of devices, wherein the second input represents at least one action to be taken using the shared resource;

modifying, by the first device, the state of the third device from the owner state to the losing ownership state, wherein third input received from the third device while in the losing ownership state is executed by the first device as the third input is received and a result obtained by executing the third input is sent to each of the plurality of devices, wherein the third input represents at least one action to be taken using the shared resource;

modifying, by the first device, the state of the third device from the losing ownership state to the not owner state upon expiration of the timer;

modifying, by the first device, the state of the second device from the gaining ownership state to the owner state upon expiration of the timer;

executing, by the first device, the second input once the second device is in the owner state;

sending, by the first device, a result obtained by executing the second input to each of the plurality of devices;

receiving, by the first device, fourth input from a fourth device of the plurality of devices, wherein the fourth input represents at least one action to be taken using the shared resource;

identifying, by the first device, that the fourth device is not in either the owner state or the gaining ownership state;

identifying, by the first device, that the fourth input does not represent a request to take control of the shared resource; and

ignoring the fourth input.

15. The method of claim 14 further comprising:

receiving, by the first device, a cursor position for each of the plurality of devices including the second and third devices; and

sending, by the first device, cursor information for each of the plurality of devices to each of the other devices, wherein the cursor information includes the cursor position and a cursor type identifier, wherein the cursor type identifier distinguishes the cursor belonging to whichever device of the plurality of devices currently in the owner state and the losing ownership state, and wherein the cursor information is sent regardless of the state of the device from which the cursor position was received.

16. The method of claim 14 further comprising:

determining, by the first device, that the second device is no longer part of the collaboration session but is currently listed as being in the owner state; and

modifying, by the first device, the state of the first device from the not owner state to the owner state without passing through the gaining ownership state.

17. A device comprising:

a network interface;

a processor coupled to the network interface; and

a memory coupled to the processor and configured to store a plurality of instructions executable by the processor, the instructions including instructions for;

monitoring a state of each of a plurality of devices as one of an owner state, a not owner state, a gaining ownership state, and a losing ownership state, wherein the plurality of devices are involved in a collaboration session that uses a shared resource being shared by the device,

receiving first input from a second device of the plurality of devices via the network interface, wherein the first input represents a request to take control of the shared resource;

identifying that the second device is in the not owner state and that a third device of the plurality of devices is currently in the owner state, wherein the not owner state indicates that the second device is currently not in control of the shared resource and wherein the owner state indicates that the third device is currently in control of the shared resource;

starting a timer, wherein control of the shared resource will automatically pass from the third device to the second device when a transition period defined by the timer expires;

modifying the state of the second device from the not owner state to the gaining ownership state, wherein second input received via the network interface from the second device while in the gaining ownership state is buffered by the first device as the second input is received and not sent to each of the plurality of devices, wherein the second input represents at least one action to be taken using the shared resource;

modifying the state of the third device from the owner state to the losing ownership state, wherein third input received via the network interface from the third device while in the losing ownership state is executed by the first device as the third input is received and a result obtained by executing the third input is sent to each of the plurality of devices, wherein the third input represents at least one action to be taken using the shared resource;

modifying the state of the third device from the losing ownership state to the not owner state upon expiration of the timer;

modifying the state of the second device from the gaining ownership state to the owner state upon expiration of the timer;

executing the second input once the second device is in the owner state;

sending a result obtained by executing the second input to each of the plurality of devices;

receiving fourth input from a fourth device of the plurality of devices, wherein the fourth input represents at least one action to be taken using the shared resource;

identifying that the fourth device is not in either the owner state or the gaining ownership state;

identifying that the fourth input does not represent a request to take control of the shared resource; and

ignoring the fourth input.