GB2370661B - Method of, and apparatus for, storing a data packet - Google Patents
Method of, and apparatus for, storing a data packetInfo
- Publication number
- GB2370661B GB2370661B GB0102278A GB0102278A GB2370661B GB 2370661 B GB2370661 B GB 2370661B GB 0102278 A GB0102278 A GB 0102278A GB 0102278 A GB0102278 A GB 0102278A GB 2370661 B GB2370661 B GB 2370661B
- Authority
- GB
- United Kingdom
- Prior art keywords
- data
- memory
- queue
- read
- location
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
- H04L49/901—Buffering arrangements using storage descriptor, e.g. read or write pointers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/90—Buffering arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/16—Arrangements for providing special services to substations
- H04L12/18—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast
- H04L12/1863—Arrangements for providing special services to substations for broadcast or conference, e.g. multicast comprising mechanisms for improved reliability, e.g. status reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/22—Parsing or analysis of headers
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Communication Control (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A data queue system comprises plural memory blocks defined in memory and a data queue, which comprises a number of memory blocks each including a link to the following block in the data queue. A queue descriptor is stored in memory. It comprises information identifying the following: the final block in the queue, the memory location where the most recent read commit occurred, and an offset from a predetermined location in that memory block, the memory location where the most recent write commit occurred, and an offset from a predetermined location in that memory block, the size of the memory blocks, the memory location where the most recent write occurred, the number of unused blocks associated with the data queue, the number of memory blocks associated with the data queue which contain data to be read, the type of data queue, the memory location where the most recent read occurred, and the number of memory blocks which have been read since the most recent read commit. A method of managing data stored in a queue in memory comprises reading data from a head of the queue, updating the position of a latest read pointer to a location corresponding to the end of the data, transferring the data to a destination, and updating the position of a committed read pointer to a location corresponding to the end of the data upon receiving confirmation that the data transfer was successful. When there is insufficient data in the queue to meet a continuous-flow demand, the most recently read data is re-read.
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0230176A GB2382899B (en) | 2000-12-29 | 2001-01-29 | A data queue system |
GB0230171A GB2382898B (en) | 2000-12-29 | 2001-01-29 | A method of managing data |
DE10164456A DE10164456A1 (en) | 2000-12-29 | 2001-12-21 | Data queuing system |
DE10164453A DE10164453A1 (en) | 2000-12-29 | 2001-12-21 | Procedure for managing data |
DE10164455A DE10164455A1 (en) | 2000-12-29 | 2001-12-21 | Method for storing a data packet |
JP2001393974A JP2002236608A (en) | 2000-12-29 | 2001-12-26 | Data queue system |
JP2001393972A JP2002261840A (en) | 2000-12-29 | 2001-12-26 | Method for storing data packet |
JP2001393973A JP2002278830A (en) | 2000-12-29 | 2001-12-26 | Managing method for data |
US10/032,806 US20020156764A1 (en) | 2000-12-29 | 2001-12-28 | Method of managing data |
US10/035,002 US20020129213A1 (en) | 2000-12-29 | 2001-12-28 | Method of storing a data packet |
US10/035,000 US6760795B2 (en) | 2000-12-29 | 2001-12-28 | Data queue system |
FR0117083A FR2819069A1 (en) | 2000-12-29 | 2001-12-31 | Method for recording a data packet into a memory divided into blocks in which cooperation between a data queuing system with programs and circuits is optimized |
FR0117087A FR2821454A1 (en) | 2000-12-29 | 2001-12-31 | DATA MANAGEMENT METHOD |
FR0117086A FR2819090A1 (en) | 2000-12-29 | 2001-12-31 | METHOD FOR RECORDING A DATA PACKET |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0031761.0A GB0031761D0 (en) | 2000-12-29 | 2000-12-29 | Data queues |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0102278D0 GB0102278D0 (en) | 2001-03-14 |
GB2370661A GB2370661A (en) | 2002-07-03 |
GB2370661B true GB2370661B (en) | 2003-05-14 |
Family
ID=9905970
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB0031761.0A Ceased GB0031761D0 (en) | 2000-12-29 | 2000-12-29 | Data queues |
GB0102278A Expired - Fee Related GB2370661B (en) | 2000-12-29 | 2001-01-29 | Method of, and apparatus for, storing a data packet |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB0031761.0A Ceased GB0031761D0 (en) | 2000-12-29 | 2000-12-29 | Data queues |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB0031761D0 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11397610B2 (en) * | 2018-12-28 | 2022-07-26 | Beijing Voyager Technology Co., Ltd. | Architecture for simulation clock-based simulation of distributed systems |
WO2020139961A1 (en) | 2018-12-28 | 2020-07-02 | Didi Research America, Llc | Distributed system task management using a simulated clock |
US11480964B2 (en) | 2018-12-28 | 2022-10-25 | Beijing Voyager Technology Co., Ltd. | Distributed system execution using a serial timeline |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1454290A (en) * | 1972-12-26 | 1976-11-03 | Ibm | Digital data processing apparatus |
WO1984000835A1 (en) * | 1982-08-13 | 1984-03-01 | Western Electric Co | First-in, first-out (fifo) memory configuration for queue storage |
EP0241129A2 (en) * | 1986-03-06 | 1987-10-14 | Advanced Micro Devices, Inc. | Addressing arrangement for a RAM buffer controller |
EP0273083A1 (en) * | 1986-12-30 | 1988-07-06 | International Business Machines Corporation | Non-locking queueing mechanism |
WO1988007298A1 (en) * | 1987-03-18 | 1988-09-22 | Alcatel N.V. | Switching system |
EP0382699A2 (en) * | 1989-02-07 | 1990-08-16 | International Business Machines Corporation | Interprocessor data transfer system and method |
US5237564A (en) * | 1990-04-06 | 1993-08-17 | France Telecom | Frame switching relay for asynchronous digital network |
GB2267588A (en) * | 1992-06-06 | 1993-12-08 | Motorola Inc | FIFO memory system |
GB2330479A (en) * | 1997-10-15 | 1999-04-21 | Motorola Inc | A router for use in a broadcast communication system |
GB2350533A (en) * | 1999-05-28 | 2000-11-29 | Mitel Corp | Avoiding underflow or overflow in a circular buffer |
-
2000
- 2000-12-29 GB GBGB0031761.0A patent/GB0031761D0/en not_active Ceased
-
2001
- 2001-01-29 GB GB0102278A patent/GB2370661B/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1454290A (en) * | 1972-12-26 | 1976-11-03 | Ibm | Digital data processing apparatus |
WO1984000835A1 (en) * | 1982-08-13 | 1984-03-01 | Western Electric Co | First-in, first-out (fifo) memory configuration for queue storage |
EP0241129A2 (en) * | 1986-03-06 | 1987-10-14 | Advanced Micro Devices, Inc. | Addressing arrangement for a RAM buffer controller |
EP0273083A1 (en) * | 1986-12-30 | 1988-07-06 | International Business Machines Corporation | Non-locking queueing mechanism |
WO1988007298A1 (en) * | 1987-03-18 | 1988-09-22 | Alcatel N.V. | Switching system |
EP0382699A2 (en) * | 1989-02-07 | 1990-08-16 | International Business Machines Corporation | Interprocessor data transfer system and method |
US5237564A (en) * | 1990-04-06 | 1993-08-17 | France Telecom | Frame switching relay for asynchronous digital network |
GB2267588A (en) * | 1992-06-06 | 1993-12-08 | Motorola Inc | FIFO memory system |
GB2330479A (en) * | 1997-10-15 | 1999-04-21 | Motorola Inc | A router for use in a broadcast communication system |
GB2350533A (en) * | 1999-05-28 | 2000-11-29 | Mitel Corp | Avoiding underflow or overflow in a circular buffer |
Non-Patent Citations (3)
Title |
---|
IBM Technical Disclosure Bulletin, Sept 1966, v9, n4, pp 374-375, "Sequential access buffer control" * |
Int Conf Multimedia & Expo, ICME 2000, New York, 30 Jul 2000, v3, pp 1687-1690, ISBN 0-7803-6536-4. * |
Journal of Systems Architecture, v46, n6, Apr 2000, pp 483-511, ISSN 1383-7621, Aweya J. * |
Also Published As
Publication number | Publication date |
---|---|
GB0102278D0 (en) | 2001-03-14 |
GB2370661A (en) | 2002-07-03 |
GB0031761D0 (en) | 2001-02-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20070129 |