CN105446664B - A kind of pair of memory carries out file memory method and storage device - Google Patents
A kind of pair of memory carries out file memory method and storage device Download PDFInfo
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- CN105446664B CN105446664B CN201510876978.9A CN201510876978A CN105446664B CN 105446664 B CN105446664 B CN 105446664B CN 201510876978 A CN201510876978 A CN 201510876978A CN 105446664 B CN105446664 B CN 105446664B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000013507 mapping Methods 0.000 claims abstract description 18
- 238000010304 firing Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0638—Organizing or formatting or addressing of data
- G06F3/0643—Management of files
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
- G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0629—Configuration or reconfiguration of storage systems
- G06F3/0631—Configuration or reconfiguration of storage systems by allocating resources to storage systems
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Abstract
The present invention provides a kind of pair of memories to carry out file memory method, and the file memory method includes the following steps:Memory is divided into two regions, one of region is storage configuration area, another region is storage data area;Storage data area is divided into two file areas, one of region is file data area, another region is exchange files area;Exchange files area is written to memory, and updates storage mapping table, wherein the memory map assignments are used to indicate the relationship of the logical address and physical address in the file data area and exchange files area;Judge whether file data successfully writes, if it does, the file data of write-in is updated to the file data area;Updated memory map assignments are saved into the storage configuration area.The file memory method may insure the integrality of file.
Description
Technical field
The present invention relates to peace electronics fields more particularly to a kind of pair of memory to carry out file memory method and storage dress
It sets.
Background technique
Current many electronic products can be increased by way of upgrading software package or the function of upgrading products
Can, the demand for making product be able to satisfy client under the premise of not needing replacement product.
As the continuous renewal of product upgrades, the individual data stored in product is also increasing, to depositing in product
The demand of reservoir is also increasing, on the one hand will increase the cost of product in this way, on the other hand due to the increasing of single data
Add, what data updated crosses the probability that data update failure in kind will also increase therewith, since the data of update are largely programs
Software, if updating failure, it would be possible to cause the serious consequence of damage of product.
Currently used memory technology, one is a kind of better simply modes, i.e., are storing all data to be updated
On device distribute two sections of memory spaces, update when, this two sector addresses space-alternating use, may insure so entire file by
After function is updated into storage equipment, then delete old data.This method can ensure that entire file is updated by correct to storage
In equipment, but the demand that will cause in this way to memory is very big, increases the cost of product.
Another way, i.e., general file system, such as FAT32, JFFS2 etc., this kind of file system can be very good
It solves the problems, such as memory space, but can only ensure the integrality of presently written monolithic data, cannot ensure the complete of entire file
Whole property, if occurring exception in data writing process, for example unexpected power down, the then data for the file for needing to update may have one
Portion be it is old, some is newly written, and causes entire data not and be complete, i.e., is new data entirely or is old number entirely
According to.Although this method can save memory space, the cost of product is reduced, cannot ensure the integrality of entire file data,
It will likely cause the serious consequence of damage of product.
Summary of the invention
The purpose of the present invention aims to solve at least one of above-mentioned technological deficiency, provides a kind of pair of memory and carries out file storage
Method and storage device.
The present invention provides a kind of pair of memory and carries out file memory method, and the file memory method includes the following steps:
Memory is divided into two regions, one of region is storage configuration area, another region is storing data
Area;
Storage data area is divided into two file areas, one of region is file data area, another region is
Exchange files area;
Exchange files area is written to memory, and updates storage mapping table, wherein the memory map assignments are used to indicate institute
State the relationship of the logical address and physical address in file data area and exchange files area;
Judge whether file data successfully writes, if it does, the file data of write-in is updated to the file data area;
Updated memory map assignments are saved into the storage configuration area.
Scheme from the above can be seen that all data one-time writes when file, and all data successes
After write-in, then memory map assignments are deposited and are saved in memory map assignments memory block.Before data are not written successfully, old data
Also always present in memory, what memory map assignments were directed toward is also old data, and only after data are completely written, storage is reflected
Firing table can just be directed toward new data, and old data will be invalid, so that it is guaranteed that the integrality and reliability of data.
1, the present invention also provides a kind of pair of memories to carry out file storage device, and the file storage device includes:
First division module, for memory to be divided into two regions, one of region is storage configuration area, another
A region is storage data area;
Second division module, for storage data area to be divided into two file areas, one of region is number of files
According to area, another region is exchange files area;
Writing module for exchange files area to be written to memory, and updates storage mapping table, wherein the storage mapping
Table is used to indicate the relationship of the logical address and physical address in the file data area and exchange files area;
Judgment module, judges whether file data successfully writes;
First update module, for when the result of judgment module, which is, is, the file data of write-in to be updated to the text
Part data field;
Second update module, for saving updated memory map assignments into the storage configuration area.
It can be seen that all data one-time writes when file, and all data successes from the scheme of above-mentioned apparatus
After write-in, then memory map assignments are deposited and are saved in memory map assignments memory block.Before data are not written successfully, old data
Also always present in memory, what memory map assignments were directed toward is also old data, and only after data are completely written, storage is reflected
Firing table can just be directed toward new data, and old data will be invalid, so that it is guaranteed that the integrality and reliability of data.
Detailed description of the invention
Fig. 1 is a kind of flow chart of embodiment of file memory method of the present invention;
Fig. 2 is the structural schematic diagram of memory of the present invention;
Fig. 3 is the structural schematic diagram of memory map assignments of the present invention;
Fig. 4 is a kind of flow chart of embodiment of write operation of file data process of the present invention;
Fig. 5 is the flow chart of file memory method another kind embodiment of the present invention;
Fig. 6 is a kind of structural schematic diagram of embodiment of file storage device of the present invention.
Specific embodiment
In order to which the technical problems, technical solutions and beneficial effects solved by the present invention is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used
To explain the present invention, it is not intended to limit the present invention.
What the present invention provided a kind of embodiment carries out file memory method to memory, as shown in Figure 1, the file stores
Method includes:
Memory is divided into two regions by step S01, and one of region is storage configuration area, another region is
Storage data area;
Storage data area is divided into two file areas by step S02, and one of region is file data area, another
A region is exchange files area;
Step S03 is written exchange files area to memory, and updates storage mapping table, wherein the memory map assignments are used
In the relationship for the logical address and physical address for indicating the file data area and exchange files area;
Step S04, judges whether file data successfully writes, if so, S05 is entered step, if not, entering step
S03;
The file data of write-in is updated to the file data area by step S05;
Step S06 saves updated memory map assignments into the storage configuration area.
In step S01 and S02, as shown in Fig. 2, the memory includes storage configuration area 120, it is used to refer to this method
Storage parameter;Storage data area 110, for storing actual data;File data area 112, for storing actual text
Number of packages evidence;Exchange files area 111 is used to the interim storage file data in file write-in, first writes data into exchange area, etc.
After file data is all successfully written, then swap with the memory block in file data area;Information table memory 122, is used to refer to
Some informations parameter of storage;Memory map assignments 121 are used to refer to the logical address and object in file data area and exchange files area
Manage the relationship of address.
In specific implementation, the physical storage locations of storage data area are had recorded in the information table memory 122, storage is reflected
The physical storage locations of firing table, the size of memory map assignments, the size of memory block, file storage area size and exchange files area are big
It is small;
The size of the memory map assignments can determine that how many a storing data blocks can be mapped;
The size of memory block indicates file storage area and the size of data exchanged minimum in exchange files area;
File storage area size indicates the maximum capacity that can be stored, the size of as practical energy storing data;
Exchange files area size indicates the size for the maximum single file that can be written, which is configured as may write-in
Maximum file size.
In specific implementation, as shown in figure 3, the record of the memory map assignments 121 and instruction logical memory blocks address institute are right
The address for the physical storage block answered, including file data area 112 and exchange files area 111, in the final area of memory map assignments
There is a memory map assignments end mark, which will be used to be confirmed whether it is when restoring memory map assignments effectively, if
It is not end mark, then is shown as the memory map assignments that current page did not save memory map assignments or mistake.
In specific implementation, described that exchange files area, and the step of updating storage mapping table is written to memory, it is specific to wrap
Include following steps:
Memory map assignments are searched, the physical address of a swap block is obtained in the exchange files area;
Empty the original data in the corresponding swap block of the physical address;
It writes file data in the corresponding swap block of the physical address;
When the data of the corresponding swap block of the physical address have write full, with updating the physical address counterlogic
Location;
Update storage mapping table.
In specific implementation, the step write file data in the corresponding swap block of the physical address, packet
Include following steps:
Judge write-in initial address whether be swap block initial address;
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
Data are copied to the initial address of swap block from the initial address of script physical block, and wherein size of data is currently to want
The address of data is written to the initial address of the swap block;
File data is to the exchange block address.
In specific implementation, as shown in figure 4, described write file data in the corresponding swap block of the physical address
The step of, include the following steps:
Step S041, judge write-in initial address whether be swap block initial address;If not, entering step
S042, if so, step S044;
Step S042, if not, searching memory map assignments, with obtaining the corresponding physical block of original data logical block address
Location;
Step S043, from the initial address of script physical block copy data to the initial address of swap block, wherein data are big
Small is that the address of data is currently written to the initial address of the swap block;
Step S044, file data to the exchange block address;
Step S045, judges whether the end address of write-in is the end address of swap block, if not, entering step
S046, if so, entering step S048;
Step S046, if not, searching memory map assignments, with obtaining the corresponding physical block of original data logical block address
Location;
Step S047, from the initial address of script physical block copy data to the current end address of swap block, wherein counting
It is end address to the end address that data are currently written of the swap block according to size;
Step S048 updates the physical address when the data of the corresponding swap block of the physical address have write full
Counterlogic address, i.e. logical address add 1 certainly.
That is, first passing through memory map assignments 121 in exchange files area when carrying out write operation of file data process
The physical address of a swap block is obtained, is then write data into the physical storage block.Write operation each time all will be with
Memory block is updated for unit, i.e., if the initial address for writing data is not memory block initial address, will can currently write number
New memory block is copied to according to the legacy data before initial address, followed by the current data of write-in;If current data are write
After complete, which is not write also completely, by copying to corresponding legacy data in new memory block.If data are written successfully,
The memory map assignments in memory are updated, the physical address of swap block are written to corresponding logical memory blocks position, then by before
The corresponding physical store block address of logical memory blocks is written to the position of swap block;If the data of this document by all at
Function is write, then the memory map assignments in memory is finally written to corresponding position in memory.
In specific implementation, described the step of updating storage mapping table, include the following steps:
The physical address of the swap block is written to corresponding logical memory blocks position;
The corresponding physical store block address of logical memory blocks is written to the position of swap block.
That is, the memory block for saving memory map assignments is referred to as memory map assignments memory block;By memory map assignments
Memory block is divided into several memory map assignments pages that size is storage mapping table size.Memory map assignments memory block is in actual reality
In existing memory map assignments can be alternately stored using two memory blocks;Memory map assignments update every time will be written to it is currently stored
In next new storage mapping page in block.If the memory block is fully written, it is written to first of another memory block
In storage mapping page, such two memory blocks alternately store memory map assignments, after all data of file are successfully written to,
It then needs for the memory map assignments of update to be saved in memory, to confirm the final data of file as latest data, if will
Memory map assignments are saved in memory, then when restoring memory map assignments next time, the data that this document is directed toward will also be memory
Old data.
In specific implementation, as shown in figure 5, the file memory method is further comprising the steps of:
Step S07 searches memory map assignments when reading file data, with obtaining the corresponding physical block of logical block address
Location;
Step S08 reads data from the physical block acquired;
Step S09 updates physical address counterlogic address;
Step S10, judges whether file data has all run through, if so, S11 is entered step, if not, entering step
Rapid S07;
Step S11, file reading terminate.
That is, first passing through memory map assignments 121 when reading file data and finding the corresponding logical memory blocks of file
Physical store block address, then read corresponding data from actual physical storage block.
In addition, the size in exchange files area is configured as the size for the maximum data file that may be written, so each
The data of file can disposably be completed to be written to exchange files area.When all data one-time writes of file, and it is all
Data be successfully written after, then memory map assignments are deposited and are saved in memory map assignments memory block.It is not written successfully in data
Before, old data are also always present in memory, and what memory map assignments were directed toward is also old data, only when data are completely write
After entering, memory map assignments can just be directed toward new data, and old data will be invalid.By above processing, so that it is guaranteed that data
Integrality and reliability.Moreover, because all files are all to share same file exchange area, do not need as each file
An exchange files area is distributed, so greatly saving memory space, and the space that file more more piece saves is more.
Scheme from the above can be seen that all data one-time writes when file, and all data successes
After write-in, then memory map assignments are deposited and are saved in memory map assignments memory block.Before data are not written successfully, old data
Also always present in memory, what memory map assignments were directed toward is also old data, and only after data are completely written, storage is reflected
Firing table can just be directed toward new data, and old data will be invalid, so that it is guaranteed that the integrality and reliability of data.
In specific implementation, what the present invention provided a kind of embodiment carries out file storage device to memory, such as Fig. 6 institute
Show, the file storage device includes:
First division module 61, for memory to be divided into two regions, one of region is storage configuration area
120, another region is storage data area 110;
Second division module 62, for storage data area 110 to be divided into two file areas, one of region is
File data area 112, another region are exchange files area 111;
Writing module 63 for exchange files area 111 to be written to memory, and updates storage mapping table 121, wherein described
Memory map assignments are used to indicate the relationship of the logical address and physical address in the file data area and exchange files area;
Judgment module 64, judges whether file data successfully writes;
First update module 65, for the file data of write-in being updated to described when the result of judgment module, which is, is
File data area 112;
Second update module 66, for saving updated memory map assignments 121 into the storage configuration area 120.
As shown in Fig. 2, the memory 100 includes storage configuration area 120, it is used to refer to the parameter of the storage of this method;
Storage data area 110, for storing actual data;File data area 112, for storing actual file data;File is handed over
Area 111 is changed, is used to the interim storage file data in file write-in, first writes data into exchange area, wait file datas whole
After being successfully written, then swap with the memory block in file data area;Information table memory 122 is used to refer to some letters of storage
Cease parameter;Memory map assignments 121 are used to refer to the pass of the logical address and physical address in file data area and exchange files area
System.
In specific implementation, the physical storage locations of storage data area are had recorded in the information table memory 122, storage is reflected
The physical storage locations of firing table, the size of memory map assignments, the size of memory block, file storage area size and exchange files area are big
It is small;
The size of the memory map assignments can determine that how many a storing data blocks can be mapped;
The size of memory block indicates file storage area and the size of data exchanged minimum in exchange files area;
File storage area size indicates the maximum capacity that can be stored, the size of as practical energy storing data;
Exchange files area size indicates the size for the maximum single file that can be written, which is configured as may write-in
Maximum file size.
In specific implementation, as shown in figure 3, the record of the memory map assignments 121 and instruction logical memory blocks address institute are right
The address for the physical storage block answered, including file data area 112 and exchange files area 111, in the final area of memory map assignments
There is a memory map assignments end mark, which will be used to be confirmed whether it is when restoring memory map assignments effectively, if
It is not end mark, then is shown as the memory map assignments that current page did not save memory map assignments or mistake.
In specific implementation, the write module 63 is also used to:
Memory map assignments are searched, the physical address of a swap block is obtained in the exchange files area;
Empty the original data in the corresponding swap block of the physical address;
It writes file data in the corresponding swap block of the physical address;
When the data of the corresponding swap block of the physical address have write full, with updating the physical address counterlogic
Location;
Update storage mapping table 121.
In specific implementation, the write module 63 is also used to:
Judge write-in initial address whether be swap block initial address;
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
Data are copied to the initial address of swap block from the initial address of script physical block, and wherein size of data is currently to want
The address of data is written to the initial address of the swap block;
File data is to the exchange block address.
In specific implementation, the write module 63 is also used to:
The write module is also used to:
Judge write-in initial address whether be swap block initial address;
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
Data are copied to the initial address of swap block from the initial address of script physical block, and wherein size of data is currently to want
The address of data is written to the initial address of the swap block;
File data is to the exchange block address;
Judge write-in end address whether be swap block end address;
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
From the initial address of script physical block copy data to the current end address of swap block, wherein size of data is institute
State end address to the end address that data are currently written of swap block;
If so, update is described physically into when the data of the corresponding swap block of the physical address have write full
The step of location counterlogic address.
That is, first passing through memory map assignments 121 in exchange files area when carrying out write operation of file data process
The physical address of a swap block is obtained, is then write data into the physical storage block.Write operation each time all will be with
Memory block is updated for unit, i.e., if the initial address for writing data is not memory block initial address, will can currently write number
New memory block is copied to according to the legacy data before initial address, followed by the current data of write-in;If current data are write
After complete, which is not write also completely, by copying to corresponding legacy data in new memory block.If data are written successfully,
The memory map assignments in memory are updated, the physical address of swap block are written to corresponding logical memory blocks position, then by before
The corresponding physical store block address of logical memory blocks is written to the position of swap block;If the data of this document by all at
Function is write, then the memory map assignments in memory is finally written to corresponding position in memory.
In addition, the size in exchange files area is configured as the size for the maximum data file that may be written, so each
The data of file can disposably be completed to be written to exchange files area.When all data one-time writes of file, and it is all
Data be successfully written after, then memory map assignments are deposited and are saved in memory map assignments memory block.It is not written successfully in data
Before, old data are also always present in memory, and what memory map assignments were directed toward is also old data, only when data are completely write
After entering, memory map assignments can just be directed toward new data, and old data will be invalid.By above processing, so that it is guaranteed that data
Integrality and reliability.Moreover, because all files are all to share same file exchange area, do not need as each file
An exchange files area is distributed, so greatly saving memory space, and the space that file more more piece saves is more.
It can be seen that all data one-time writes when file, and all data successes from the scheme of above-mentioned apparatus
After write-in, then memory map assignments are deposited and are saved in memory map assignments memory block.Before data are not written successfully, old data
Also always present in memory, what memory map assignments were directed toward is also old data, and only after data are completely written, storage is reflected
Firing table can just be directed toward new data, and old data will be invalid, so that it is guaranteed that the integrality and reliability of data.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (7)
1. a kind of pair of memory carries out file memory method, it is characterised in that:The file memory method includes the following steps:
Memory is divided into two regions, one of region is storage configuration area, another region is storage data area;
Storage data area is divided into two file areas, one of region is file data area, another region is file
Exchange area;
File data is written to the exchange files area of memory, and updates storage mapping table, wherein the memory map assignments are used for
Indicate the relationship of the logical address and physical address in the file data area and exchange files area;
Judge whether file data successfully writes, if it does, the file data of write-in is updated to the file data area;
Updated memory map assignments are saved into the storage configuration area;
Wherein, described that exchange files area, and the step of updating storage mapping table is written to memory, specifically include following steps:
Memory map assignments are searched, the physical address of a swap block is obtained in the exchange files area;
Empty the original data in the corresponding swap block of the physical address;
It writes file data in the corresponding swap block of the physical address;
When the data of the corresponding swap block of the physical address have write full, physical address counterlogic address is updated;
Update storage mapping table.
2. file memory method as described in claim 1, it is characterised in that:It is described write file data to it is described physically
Step in the corresponding swap block in location, includes the following steps:
Judge write-in initial address whether be swap block initial address;
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
Data are copied to the initial address of swap block from the initial address of script physical block, and wherein size of data is currently to be written
The address of data to the swap block initial address;
File data is to the exchange block address.
3. file memory method as described in claim 1, it is characterised in that:It is described write file data to it is described physically
Step in the corresponding swap block in location, includes the following steps:
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
File data is to the exchange block address;
Judge write-in end address whether be swap block end address;
Data are copied to the current end address of swap block from the initial address of script physical block, and wherein size of data is the friendship
Change end address to the end address that data are currently written of block;
If so, updating the physical address pair into when the data of the corresponding swap block of the physical address have write full
The step of answering logical address.
4. file memory method as described in claim 1, it is characterised in that:It is further comprising the steps of:
When reading file data, memory map assignments are searched, obtain the corresponding physical block address of logical block address;
Data are read from the physical block acquired;
Update physical address counterlogic address;
Judge whether file data has all run through, if so, obtaining logical block address into the lookup memory map assignments
The step of corresponding physical block address.
5. a kind of pair of memory carries out file storage device, it is characterised in that:The file storage device includes:
First division module, for memory to be divided into two regions, one of region is storage configuration area, another area
Domain is storage data area;
Second division module, for storage data area to be divided into two file areas, one of region is file data area,
Another region is exchange files area;
Writing module for exchange files area to be written to memory, and updates storage mapping table, wherein the memory map assignments are used
In the relationship for the logical address and physical address for indicating the file data area and exchange files area;
Judgment module, judges whether file data successfully writes;
First update module, for when the result of judgment module, which is, is, the file data of write-in to be updated to the number of files
According to area;
Second update module, for saving updated memory map assignments into the storage configuration area;
Wherein, the write module is also used to:
Memory map assignments are searched, the physical address of a swap block is obtained in the exchange files area;
Empty the original data in the corresponding swap block of the physical address;
It writes file data in the corresponding swap block of the physical address;
When the data of the corresponding swap block of the physical address have write full, physical address counterlogic address is updated;
Update storage mapping table.
6. file storage device as claimed in claim 5, it is characterised in that:The write module is also used to:
Judge write-in initial address whether be swap block initial address;
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
Data are copied to the initial address of swap block from the initial address of script physical block, and wherein size of data is currently to be written
The address of data to the swap block initial address;
File data is to the exchange block address.
7. file storage device as claimed in claim 5, it is characterised in that:The write module is also used to:
Judge write-in initial address whether be swap block initial address;
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
Data are copied to the initial address of swap block from the initial address of script physical block, and wherein size of data is currently to be written
The address of data to the swap block initial address;
File data is to the exchange block address;
Judge write-in end address whether be swap block end address;
If not, searching memory map assignments, the corresponding physical block address of original data logical block address is obtained;
Data are copied to the current end address of swap block from the initial address of script physical block, and wherein size of data is the friendship
Change end address to the end address that data are currently written of block;
If so, updating the physical address pair into when the data of the corresponding swap block of the physical address have write full
The step of answering logical address.
Priority Applications (1)
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CN107315533A (en) * | 2016-04-26 | 2017-11-03 | 杭州海康威视数字技术股份有限公司 | A kind of date storage method and device |
CN106339431B (en) * | 2016-08-18 | 2019-09-06 | 佛山智能装备技术研究院 | Robot program's document handling method and system based on text block |
CN111143899A (en) * | 2018-11-06 | 2020-05-12 | 中兴通讯股份有限公司 | Method and device for storing data, storage medium and electronic device |
CN109783440B (en) * | 2018-12-19 | 2023-09-19 | 爱云保(上海)科技有限公司 | Data storage method, data retrieval method, data storage device, medium and electronic equipment |
CN111897744B (en) * | 2019-05-05 | 2024-06-14 | 兆易创新科技集团股份有限公司 | Data writing method and device, electronic equipment and storage medium |
CN113553005B (en) * | 2021-07-06 | 2023-12-22 | 杭州宏杉科技股份有限公司 | Data read-write method, device and equipment for simplifying LUN |
CN113722340A (en) * | 2021-08-27 | 2021-11-30 | 科大智能电气技术有限公司 | Processing method and system for remote automatic point table updating based on power distribution device |
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