CN106919515A - A kind of daily record linked list data reading/writing method in memory - Google Patents
A kind of daily record linked list data reading/writing method in memory Download PDFInfo
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- CN106919515A CN106919515A CN201510984742.7A CN201510984742A CN106919515A CN 106919515 A CN106919515 A CN 106919515A CN 201510984742 A CN201510984742 A CN 201510984742A CN 106919515 A CN106919515 A CN 106919515A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/02—Addressing or allocation; Relocation
- G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
- G06F12/0646—Configuration or reconfiguration
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Abstract
The present invention relates to a kind of daily record linked list data write method in memory, including：Initialization write address WarnSave and reading address PageAddr；Wherein, write address WarnSave includes two elements：Addr and num, addr therein represent the storage address of state-of-the-art record, and num represents the record number for storing altogether；When write address WarnSave is initialized, the numerical value of num is for the size of 0, addr：The record number of one record length × to be stored；When daily record data is stored, record number to be stored is given value；Read address PageAddr and only include address element；When there is new log recording, by the new log recording according to the memory that is sequentially written in from high address to low address, write address WarnSave subtracts a length for record, and assigns reading address PageAddr by newest write address WarnSave.
Description
Technical field
The present invention relates to field of data storage, more particularly to a kind of daily record linked list data reading/writing method in memory.
Background technology
The mode of first in first out is generally followed when data are stored in memory, i.e., the data of newer storage store position
Put more rearward.Daily record data is no exception in storage.But, it is necessary to show during using UI interface display daily record datas
Newest data, i.e., newest daily record data shows, if there is the new daily record data for arriving in display, also needs at first
To refresh display in real time.
Data storing order is inconsistent with daily record data display order, causes daily record data speed in display slower,
Real-time is not strong.
The content of the invention
It is an object of the invention to overcome existing daily record data storage order inconsistent with daily record data display order,
The defect that daily record data display speed is slow, real-time is not strong is caused, so that providing one kind can effectively improve journal displaying
The daily record chained list data read-write method of speed.
To achieve these goals, the write method the invention provides a kind of daily record linked list data in memory, bag
Include：
Step 101), initialization write address WarnSave and read address PageAddr；Wherein,
The write address WarnSave includes two elements：Addr and num, addr therein represents newest note
The storage address of record, num represents the record number for storing altogether；When write address WarnSave is initialized, num
Numerical value be for the size of 0, addr：The record number of one record length × to be stored；Wherein, in daily record data
During storage, record number to be stored is given value；
The reading address PageAddr only includes address element；
Step 102) when there is new log recording, by the new log recording according to suitable from high address to low address
Sequence writes memory, and write address WarnSave subtracts a length for record, and by newest write address WarnSave
Assign and read address PageAddr.
In above-mentioned technical proposal, the step 102) further include：
102-1), when there is new daily record to need storage, with the current number of the addr elements in write address WarnSave
It is worth initial address of the representative storage address as write operation, then according to the order from high address to low address
In one section of storage unit stores data；
Step 102-2), the numerical value of addr elements in modification write address WarnSave, will its numerical value subtract and work as
The length of preceding stored log recording, and for the num element values in write address WarnSave add 1；
Step 102-3), the new numerical value of the addr elements in write address WarnSave is assigned and reads address
PageAddr。
Present invention also offers a kind of daily record linked list data reading method in memory, for described write method
The daily record linked list data for being stored is read out, including：
Step 201), since address PageAddr is read, according to since low address to the order of high address from storage
Daily record data is read in device, can judge the size of currently-read daily record data reach the display scale of one page,
If it is, performing next step, otherwise, step 203 is performed)；
Step 202), the daily record data of display current page, then will read address PageAddr and subtract number of pages and be multiplied by every page
Number, then re-execute step 201)；
Step 203), display current page daily record data, terminate read operation.
The advantage of the invention is that：
The present invention is real-time in show log data, and display speed is fast.
Brief description of the drawings
Fig. 1 is the schematic diagram for aiming at day being shown on GUI；
Fig. 2 is daily record linked list data storage schematic diagram in memory.
Specific embodiment
In conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is the schematic diagram for aiming at day being shown on GUI, as illustrated, aim at day being shown in the form of page on GUI,
Every page has a plurality of record.In machine running process, can there are multiple such pages, possess on turn over, lower page turning etc.
Function, and, it is necessary to the content of real-time update page display when having a new daily record.
Reading/writing method with reference to Fig. 2 to daily record linked list data in memory is illustrated.The method includes：
Step 101), initialization write address WarnSave and read address PageAddr.Wherein,
The write address WarnSave includes two elements：Addr and num, addr therein represents newest note
The storage address of record, num represents the record number for storing altogether.When write address WarnSave is initialized, num
Numerical value be for the size of 0, addr：The record number of one record length × to be stored；Wherein, stored in daily record
When, record number to be stored is given value.
The reading address PageAddr only includes address element, and when address PageAddr is read in initialization, its value is
The value of newest write address WarnSave.
Step 102) when there is new log recording, by the new log recording according to suitable from high address to low address
Sequence writes memory, and WarnSave subtracts a length for record.
By taking the FRAM memory shown in Fig. 2 as an example, the lower section of the memory represents low address, and top represents highland
Location.When there is new daily record to need storage, with representated by the current value of the addr elements in write address WarnSave
Storage address as the initial address of write operation, then deposited at one section according to the order from high address to low address
Storage unit data storage.After completing write operation, the numerical value of the addr elements in write address WarnSave is changed, will
Its numerical value subtracts the length of currently stored log recording, and for the num element values in write address WarnSave add
1.In addition it is also necessary to the new numerical value of the addr elements in write address WarnSave is assigned and reads address PageAddr.
After according to method of the present invention storage daily record, when daily record data is read, realize in accordance with the following steps：
Step 201), since address PageAddr is read, according to since low address to the order of high address from storage
Daily record data is read in device, can judge the size of currently-read daily record data reach the display scale of one page,
If it is, performing next step, otherwise, step 203 is performed)；
Step 202), the daily record data of display current page, then will read address PageAddr and subtract number of pages and be multiplied by every page
Number, then re-execute step 201)；
Step 203), display current page daily record data, terminate read operation.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although
The present invention has been described in detail with reference to embodiment, it will be understood by those within the art that, to the present invention
Technical scheme modify or equivalent, without departure from the spirit and scope of technical solution of the present invention, its is equal
Should cover in the middle of scope of the presently claimed invention.
Claims (3)
1. a kind of daily record linked list data write method in memory, including：
Step 101), initialization write address WarnSave and read address PageAddr；Wherein,
The write address WarnSave includes two elements：Addr and num, addr therein represents newest note
The storage address of record, num represents the record number for storing altogether；When write address WarnSave is initialized, num
Numerical value be for the size of 0, addr：The record number of one record length × to be stored；Wherein, in daily record data
During storage, record number to be stored is given value；
The reading address PageAddr only includes address element；
Step 102) when there is new log recording, by the new log recording according to suitable from high address to low address
Sequence writes memory, and write address WarnSave subtracts a length for record, and by newest write address WarnSave
Assign and read address PageAddr.
2. daily record linked list data according to claim 1 write method in memory, it is characterised in that institute
State step 102) further include：
102-1), when there is new daily record to need storage, with the current number of the addr elements in write address WarnSave
It is worth initial address of the representative storage address as write operation, then according to the order from high address to low address
In one section of storage unit stores data；
Step 102-2), the numerical value of addr elements in modification write address WarnSave, will its numerical value subtract and work as
The length of preceding stored log recording, and for the num element values in write address WarnSave add 1；
Step 102-3), the new numerical value of the addr elements in write address WarnSave is assigned and reads address
PageAddr。
3. a kind of daily record linked list data reading method in memory, for being write to one of claim 1-2 is described
The daily record linked list data that method is stored is read out, including：
Step 201), since address PageAddr is read, according to since low address to the order of high address from storage
Daily record data is read in device, can judge the size of currently-read daily record data reach the display scale of one page,
If it is, performing next step, otherwise, step 203 is performed)；
Step 202), the daily record data of display current page, then will read address PageAddr and subtract number of pages and be multiplied by every page
Number, then re-execute step 201)；
Step 203), display current page daily record data, terminate read operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984742.7A CN106919515B (en) | 2015-12-24 | 2015-12-24 | Method for reading and writing log linked list data in memory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510984742.7A CN106919515B (en) | 2015-12-24 | 2015-12-24 | Method for reading and writing log linked list data in memory |
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| Publication Number | Publication Date |
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| CN106919515A true CN106919515A (en) | 2017-07-04 |
| CN106919515B CN106919515B (en) | 2020-09-18 |
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| US20120059999A1 (en) * | 2010-09-06 | 2012-03-08 | Avinash Kant Raikwar | Methods and systems for storing variable width stack elements in a single memory stack |
| CN102637148A (en) * | 2011-07-08 | 2012-08-15 | 中国科学院计算技术研究所 | DDR SDRAM (double data rate synchronous dynamic random-access memory) based stacked data caching device and method thereof |
| CN103902434A (en) * | 2012-12-29 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | Alarm log management method and system |
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Patent Citations (7)
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|---|---|---|---|---|
| US20070214291A1 (en) * | 2003-09-15 | 2007-09-13 | Broadcom Corporation | Elasticity buffer for streaming data |
| CN101272276A (en) * | 2008-04-22 | 2008-09-24 | 深圳国人通信有限公司 | Log management implementing method |
| CN102053923A (en) * | 2009-11-05 | 2011-05-11 | 北京金山软件有限公司 | Storage method and storage device for logbook data |
| US20120059999A1 (en) * | 2010-09-06 | 2012-03-08 | Avinash Kant Raikwar | Methods and systems for storing variable width stack elements in a single memory stack |
| CN102135943A (en) * | 2011-03-23 | 2011-07-27 | 华为终端有限公司 | Storing and accessing method of flash memory data and device thereof |
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