System and method for processing data in kernel area by a user command

• US 20050165983A1
• Filed: 08/16/2004
• Published: 07/28/2005
• Est. Priority Date: 01/26/2004
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Nam, Sang-Jun
• Application Number:
  US10/918,918
• Publication Number:
  US 20050165983A1
• Time in Patent Office: Days
• US Class Current: 710/52
• CPC Class Codes: G06F 9/544 Buffers; Shared memory; Pipes
• CPC Class Codes: G06F 9/545 where tasks reside in different layers, e.g. user- and kernel-space
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/65 Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

Disclosed is a data processing method of a kernel area according to a command of a user in a data processing system having a kernel mode used as an operation mode of the kernel area and a user mode used as an operation mode of an user area. The data processing method includes the steps of extracting data to be processed from a data storage part in response to the command of the user in the kernel mode if a predetermined data process command occurs in the user mode by the command of the user; storing the data to be processed in a kernel buffer; transferring basic information of the data to be processed to the user mode; creating a second data processing function corresponding to a first data processing function using the basic information in the kernel mode if the first data processing function using the basic information is initiated in the user mode; and processing the data to be processed by using the data processing function. Accordingly, data transmission efficiency is improved by reducing the excessive overheads occurring due to frequent data transmission between a user mode and a kernel mode when transmitting multimedia data. Also, it is possible to simplify interfaces of applications based on the RTP by creating RTP packets in a kernel area.

Claims

1. A data processing system in a kernel area according to a command of a user, the data processing system comprising:

a database;

a user area input/output control part used for initiating an input/output system call for performing a command if the command for data transfer occurs in a user area, wherein the command is performed by using predetermined parameters after establishing the predetermined parameters required for performing the command;

a kernel area input/output control part for controlling input/output in the kernel area in response to initiation of the input/output system call; and

a second buffer for storing data extracted from the database with a transmission unit by a control command of the kernel area input/output control part, wherein the kernel area input/output control part adds a protocol header by using the predetermined parameters for transmitting data to each of data segments in the transmission unit stored in the second buffer.

2. The data processing system as claimed in claim 1, wherein the kernel area input/output control part adds a protocol header to each transmission unit data segments for real-time transmission.

3. The data processing system as claimed in claim 2, wherein the kernel area input/output control part transfers transmission data segments to a network device, which performs data transmission/receiving in relation to an external device, by using coder-decoder (CODEC) information for processing the transmission data segments having the protocol header for real-time transmission.

4. The data processing system as claimed in claim 1, wherein the kernel area input/output control part creates an application program interface corresponding to the input/output system call in response to the input/output system call of the user area input/output control part and controls input/output of the kernel area by using the application program interface.

5. A data processing method of a kernel area according to a user command in a data processing system having a kernel mode used as an operation mode of the kernel area and a user mode used as an operation mode of an user area, the data processing method comprising the steps of:

i) extracting data from a data storage part in response to the user command in the kernel mode if a predetermined data process command occurs in the user mode by the command of the user;

ii) storing the data in a kernel buffer;

iii) transferring basic information of the data to be processed to the user mode;

iv) creating a second data processing function corresponding to a first data processing function using the basic information in the kernel mode if the first data processing function using the basic information is initiated in the user mode; and

v) processing the data by using the first data processing function.

6. The data processing method as claimed in claim 5, wherein step v) further comprises a step of adding a protocol header for data transmission to data of a transmission unit stored in the kernel buffer.

7. The data processing method as claimed in claim 6, wherein in step v) further comprises a step of adding a protocol header for real-time data transmission is to the data.

8. The data processing method as claimed in claim 7, wherein in step v) further comprises a step of transferring the transmission data to a network device performing data transmission/receiving in relation to an external device by using CODEC information for processing the data having the protocol header for real-time data transmission.