INFORMATION PROCESSING UNIT, INFORMATION PROCESSING METHOD, CLIENT DEVICE AND INFORMATION PROCESSING SYSTEM

• US 20090240766A1
• Filed: 03/18/2009
• Published: 09/24/2009
• Est. Priority Date: 03/19/2008
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Yamashita, Kei, Honda, Yasuaki, Kikkawa, Norifumi, Miyama, Seiji
• Granted Patent: US 8,874,756 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• CPC Class Codes: H04L 47/27 Evaluation or update of window size, e.g. using information derived from acknowledged [ACK] packets
• CPC Class Codes: H04L 47/30 in combination with information about buffer occupancy at either end or at transit nodes
• CPC Class Codes: H04L 49/90 Buffering arrangements
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]

Abstract

An information processing unit includes an application data receiving buffer to temporarily store data transmitted from a client device for initiating a connection, an application data receiving section to acquire the data transmitted from the client device from the application data receiving buffer and transmit the data to an upper layer application, and a flow control reception management section to transfer the data transmitted from the client device to the application data receiving buffer and monitor a free space in the application data receiving buffer and supply a data size receivable by the application data receiving buffer to the client device.

Claims

1. An information processing unit comprising:

a connection wait section to establish a connection with a client device for initiating a connection; and

a data receiving section to receive data transmitted from the client device, the data receiving section including;

an application data receiving buffer to temporarily store data transmitted from the client device,

an application data receiving section to acquire the data transmitted from the client device from the application data receiving buffer and transmit the data to an upper layer application, and

a flow control reception management section to monitor a free space in the application data receiving buffer and supply a data size receivable by the application data receiving buffer to the client device, and transfer the data transmitted from the client device to the application data receiving buffer.

2. The information processing unit according to claim 1, wherein

the flow control reception management section supplies a data size receivable by the application data receiving buffer to the client device upon establishment of a connection with the client device.

3. The information processing unit according to claim 2, wherein

the flow control reception management section supplies an increment in the free space to the client device upon increase in the free space.

4. The information processing unit according to claim 1, further comprising:

a communication section to control communication with the client device; and

a communication section receiving buffer to temporarily store data received from the client device by the communication section,

wherein the flow control reception management section transfers the data temporarily stored in the communication section receiving buffer to the application data receiving buffer.

5. The information processing unit according to claim 1, further comprising:

a connection maintenance control information receiving section to receive connection maintenance control information transmitted from the client device,

wherein the connection maintenance control information receiving section discards the received connection maintenance control information upon reception of the connection maintenance control information.

6. The information processing unit according to claim 1, further comprising:

a data transmitting section to transmit data to the client device, the data transmitting section including;

an application data transmitting buffer to temporarily store data to be transmitted to the client device,

an application data transmitting section to acquire data to be transmitted to the client device from an upper layer application and transfer the data to the application data transmitting buffer, and

a flow control transmission management section to acquire the data from the application data transmitting buffer and transmit the acquired data to the client device based on a data size receivable by the client device, supplied from the client device.

7. The information processing unit according to claim 6, further comprising:

a communication section to control communication with the client device; and

a communication section transmitting buffer to temporarily store data to be transmitted to the client device by the communication section,

wherein the flow control transmission management section transfers the data temporarily stored in the application data transmitting buffer to the communication section transmitting buffer.

8. An information processing method comprising the steps of:

establishing a connection with a client device for initiating a connection;

supplying a data size receivable by an application data receiving buffer to the client device based on a free space in the application data receiving buffer to temporarily store data transmitted from the client device;

temporarily storing the data transmitted from the client device into the application data receiving buffer; and

transmitting the data temporarily stored in the application data receiving buffer to an upper layer application.

9. The information processing method according to claim 8, further comprising the steps of:

acquiring data to be transmitted to the client device from an upper layer application and transferring the acquired data to an application data transmitting buffer to temporarily store data to be transmitted to the client device; and

acquiring the data from the application data transmitting buffer and transmitting the acquired data to the client device based on a data size receivable by the client device, supplied from the client device.

10. A client device comprising;

a connection establishment section to initiate a connection with an information processing unit and establish a connection with the information processing unit; and

a data transmitting section to transmit data to the information processing unit, the data transmitting section including;

an application data transmitting buffer to temporarily store data to be transmitted to the information processing unit,

an application data transmitting section to acquire data to be transmitted to the information processing unit from an upper layer application and transfer the data to the application data transmitting buffer, and

a flow control transmission management section to acquire the data from the application data transmitting buffer and transmit the acquired data to the information processing unit based on a data size receivable by the information processing unit, supplied from the information processing unit.

11. The client device according to claim 10, further comprising:

a data receiving section to receive data transmitted from the information processing unit, the data receiving section including;

an application data receiving buffer to temporarily store data transmitted from the information processing unit,

an application data receiving section to acquire the data transmitted from the information processing unit from the application data receiving buffer and transmit the data to an upper layer application, and

a flow control reception management section to monitor a free space in the application data receiving buffer and supply a data size receivable by the application data receiving buffer to the information processing unit, and transfer the data transmitted from the information processing unit to the application data receiving buffer.

12. An information processing method comprising the steps of:

initiating a connection with an information processing unit and establishing a connection with the information processing unit;

acquiring data to be transmitted to the information processing unit from an upper layer application and transferring the acquired data to an application data transmitting buffer to temporarily store data to be transmitted to the information processing unit; and

acquiring the data from the application data transmitting buffer and transmitting the acquired data to the information processing unit based on a data size receivable by the information processing unit, supplied from the information processing unit.

13. The information processing method according to claim 12, further comprising the steps of:

supplying a data size receivable by an application data receiving buffer to the information processing unit based on a free space in the application data receiving buffer to temporarily store data transmitted from the client device;

temporarily storing the data transmitted from the information processing unit into the application data receiving buffer; and

transmitting the data temporarily stored in the application data receiving buffer to an upper layer application.

14. An information processing system comprising:

a client device including;

a connection establishment section to initiate a connection with an information processing unit and establish a connection with the information processing unit, and

a data transmitting section to transmit data to the information processing unit, the data transmitting section including;

an application data transmitting buffer to temporarily store data to be transmitted to the information processing unit,

an application data transmitting section to acquire data to be transmitted to the information processing unit from an upper layer application and transfer the data to the application data transmitting buffer, and

a flow control transmission management section to acquire the data from the application data transmitting buffer and transmit the acquired data to the information processing unit based on a data size receivable by the information processing unit, supplied from the information processing unit; and

the information processing unit including;

a connection wait section to establish a connection with the client device, and

a data receiving section to receive data transmitted from the client device, the data receiving section including;

an application data receiving buffer to temporarily store data transmitted from the client device,

an application data receiving section to acquire the data transmitted from the client device from the application data receiving buffer and transmit the data to an upper layer application, and

a flow control reception management section to monitor a free space in the application data receiving buffer and supply a data size receivable by the application data receiving buffer to the client device, and transfer the data transmitted from the client device to the application data receiving buffer.

15. The information processing system according to claim 14, wherein

the data transmitting section included in the client device further includes a connection maintenance control information transmitting section to transmit connection maintenance control information for maintaining a connection established with the information processing unit, and

the connection maintenance control information transmitting section transmits the connection maintenance control information to the information processing unit when communication is not performed with the information processing unit for a given period of time.

16. The information processing system according to claim 14, wherein

the information processing unit further includes a data transmitting section to transmit data to the client device, the data transmitting section including:

an application data transmitting buffer to temporarily store data to be transmitted to the client device;

an application data transmitting section to acquire data to be transmitted to the client device from an upper layer application and transfer the data to the application data transmitting buffer; and

a flow control transmission management section to acquire the data from the application data transmitting buffer and transmit the acquired data to the client device based on a data size receivable by the client device, supplied from the client device, and

the client device further includes a data receiving section to receive data transmitted from the information processing unit, the data receiving section including;

an application data receiving buffer to temporarily store data transmitted from the information processing unit;

an application data receiving section to acquire the data transmitted from the information processing unit from the application data receiving buffer and transmit the data to an upper layer application; and

a flow control reception management section to monitor a free space in the application data receiving buffer and supply a data size receivable by the application data receiving buffer to the information processing unit, and transfer the data transmitted from the information processing unit to the application data receiving buffer.