CN108763479A - File management method based on terminal document system - Google Patents
File management method based on terminal document system Download PDFInfo
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- CN108763479A CN108763479A CN201810533837.0A CN201810533837A CN108763479A CN 108763479 A CN108763479 A CN 108763479A CN 201810533837 A CN201810533837 A CN 201810533837A CN 108763479 A CN108763479 A CN 108763479A
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Abstract
The present invention relates to the file management methods based on terminal document system, by creating original document piece in terminal document system, terminal is according to the writing ranges of data to be written and original document piece amount of capacity multilevel iudge, with when the writing range of data to be written exceeds original document piece, it is written into the preceding segment data write-in original document piece of data, the rear segment data for being written into data is written in system in stored files for storage piece, it realizes in the case where not changing original document piece capacity, writing range according to data to be written is automatic, dynamic adjustment terminal document system is interior and matches the file piece quantity of data writing range to be written, promote the space availability ratio of terminal document system;When data in reading terminals file system, terminal automatically switches the data of each file piece in reading terminals file system according to the read range of data to be read with the amount of capacity of original document piece, realizes automatic switchover read operation of the terminal document system to data to be read.
Description
Technical field
The present invention relates to terminal document management domain more particularly to a kind of file management sides based on terminal document system
Method.
Background technology
Due to the limited system resources of common terminal platform, terminal system file system function mounted is simultaneously not perfect,
Cause file when changing capacity, deletion or renaming, it is necessary to assure the powered stable that terminal is received is reliable;Otherwise, terminal
File in file system, which will exist, to be risk of damage to.
For above-mentioned risk, following method is primarily now taken to cope with the risk:Text is created in terminal document system
When part, then the possible maximum capacity of calculation document first removes the file for creating content blank according to the maximum capacity, finally exists
The write-in for data in file and read operation are completed in the case of not changing file size.
But there is also shortcomings for the above method:First, file is once created in terminal document system and will be occupied
The fixed space of system causes the space availability ratio of terminal document system relatively low;Secondly, the text created in terminal document system
Part generally selects as possible without delete operation, but does not largely delete file (or discarded file) by occupied terminal file
The space of system can equally reduce the space availability ratio of terminal document system.
Invention content
It is a kind of based on terminal document system the technical problem to be solved by the present invention is to provide for the above-mentioned prior art
File management method.
Technical solution is used by the present invention solves above-mentioned technical problem:File management side based on terminal document system
Method, which is characterized in that include the following steps 1 to step 5:
Step 1, when the terminal needs to create the file of record data, matching is created in the terminal document system
The original document piece of this document purposes;
Step 2, when the terminal carries out write-in data manipulation, the writing range of data to be written is obtained;Wherein, described to wait for
The writing range of data is written as writing position value of the data to be written in terminal document system to the writing position value
With the section of the sum of data length to be written;
Step 3, according to the capacity of the original document piece and the writing range of the data to be written, judge to be directed to institute
State the further operating of data to be written:
Step 3-1, when capacity of the writing range of the data to be written without departing from the original document piece, then by institute
Data to be written are stated to be written in the original document piece;
Step 3-2, when the writing range of the data to be written exceeds the capacity of the original document piece, and the terminal
There are when next file piece in file system:
When next file piece capacity can accommodate the rear segment data of data to be written, then by the data to be written
Preceding segment data is written at said write positional value in original document piece, and the rear segment data of the data to be written is written to
Next file piece present in terminal document system;Otherwise, terminal automatically creates required amount of in its file system
And with the backup file piece of the capacity such as next file piece, by the front end data of the data to be written in said write position
Be written at value in original document piece, the Back end data of the data to be written is sequentially written in automatically create it is described each spare
In file piece;Wherein, the preceding segment data is in data to be written in said write position and original document piece end
Data between position, the rear segment data are to remove the data after the preceding segment data in data to be written;The spare text
The quantity of part piece the upward of quotient between the back segment data length and next file piece capacity of the data to be written takes
Whole value;
Step 3-3, when the writing range of the data to be written exceeds the capacity of the original document piece, and the terminal
When next file piece being not present in file system, the terminal automatically creates requirement in its system and holds with default
The new file piece of amount, and the preceding segment data of the data to be written is written to the original document at said write positional value
In piece, the rear segment data of the data to be written is sequentially written in each new file piece automatically created;Wherein, described
The quantity of new file piece the upward of quotient between the back segment data length and the new file piece capacity of the data to be written takes
Whole value;
Step 4, when the terminal is read out data manipulation, the read range of data to be read is obtained;Wherein, described to wait for
The read range of data is read as reading position value of the data to be read in terminal document system to the reading position value
With the section of the sum of data length to be read;
Step 5, according to the capacity of the original document piece and the read range of the data to be read, judge to be directed to institute
State the further operating of data to be read:
Step 5-1, when capacity of the read range of the data to be read without departing from the original document piece, then in institute
State the data read at reading position value in the original document piece;
Step 5-2, when the read range of the data to be read exceeds the capacity of the original document piece, and the terminal
There are when the files for storage piece of at least one storage data in file system, the terminal is read in the original document piece
Data as the preceding segment data of the data to be read, the data that are successively read in each files for storage piece be used as described in continue
The rear segment data for evidence of fetching;
Step 5-3, when the read range of the data to be read exceeds the capacity of the original document piece, and the terminal
There is no when the files for storage piece of storage data in file system, the terminal reads described first at the reading position
Preceding segment data of the data as the data to be read in beginning file piece, and access of continuing described in empty data conduct is read automatically
According to rear segment data.
With improvement, described based in the file management method of terminal document system, the terminal needs to reduce file appearance
When amount, the terminal obtains the end position of the file to be reduced, and it is later by the terminal to remove the end of file position
Data.
Further, after the end of file position of the capacity to be reduced there are when extra file piece, the end
Automatically the extra file piece is recycled in end.
With improvement, described based in the file management method of terminal document system, the text in the terminal document system
Part title includes the serial number of the file name that this document piece is belonged to and this document piece in its belonged to file.
It improves again, the file management method based on terminal document system further includes:The terminal executes delete target
When Object Operations, terminal sets the target object to be deleted to the step of object to be deleted is stored;Wherein, described
Target object is file piece or includes the file of file piece.
Further, described based in the file management method of terminal document system, the terminal is by by the mesh
The header respective flag of mark object does set processing, and the target object is set to object to be deleted to realize.
It improves again, described based in the file management method of terminal document system, the terminal will wait for described in storage
Object is deleted in preset time complete deletion.
Preferably, described based in the file management method of terminal document system, the preset time is the terminal
Receive the time of stable power-supplying.
Compared with the prior art, the advantages of the present invention are as follows:
First, after the file management method in the present invention in terminal document system by creating original document piece, by end
Multilevel iudge is made in end according to the writing range of data be written and the amount of capacity of original document piece, in data to be written
When writing range exceeds original document piece, it is written into the preceding segment data write-in original document piece of data, and is written into data
Rear segment data be written at least one files for storage piece stored in system, realize and do not changing original document
In the case of piece capacity, according to the writing range of data to be written come it is automatic, dynamically adjust in terminal document system and match
The file piece quantity of data writing range to be written, realization automatically provide appropriate number of according to the writing range of data to be written
File piece accommodates current data to be written with lucky matching, promotes the space availability ratio of terminal document system;
Similarly, when data of the file management method in reading terminals file system in the present invention, also by terminal root
Automatically switch each file in reading terminals file system according to the read range of data to be read and the amount of capacity of original document piece
Automatic switchover read operation of the terminal document system to data to be read may be implemented in the data of piece in this way;Pass through what will be read
After preceding segment data and rear segment data (if any) split, you can formation obtains the entire data to be read to be read;
Secondly, the file management method in the present invention waits deleting in the case where allowing file to delete also directed in system
Except object thoroughly concentrates deletion in preset time, to reduce the risk that each file piece is accidentally deleted in file system, and then also improve
The space availability ratio of terminal document system.
Description of the drawings
Fig. 1 is the file management method flow diagram based on terminal document system in the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
As shown in Figure 1, the file management method based on terminal document system in the present embodiment, includes the following steps 1 to step
Rapid 5:
Step 1, when terminal needs to create the file of record data, matching current file is created in terminal document system
The original document piece of purposes;The amount of capacity of the original document piece is related with the current purposes of this file piece, for example, can root
It is set as 1M according to the capacity by this original document piece is needed;
Step 2, when terminal carries out write-in data manipulation, the writing range of data to be written is obtained;Wherein, data to be written
Writing range be writing position value of the data to be written in terminal document system to the writing position value and data to be written
The section of the sum of length;
Step 3, according to the capacity of original document piece and the writing range of data to be written, judge to be directed to data to be written
Further operating:
Step 3-1 shows current initial when capacity of the writing range of data to be written without departing from original document piece
File piece capacity is enough to store entire data to be written, then is written into data and is written in original document piece;
Step 3-2, when the writing range of data to be written exceeds the capacity of original document piece, and terminal document Installed System Memory
In next file piece, show that current original document capacity is difficult to store entire data to be written completely:
When next file piece capacity can accommodate the rear segment data of data to be written, then by the data to be written
Preceding segment data is written at writing position value in original document piece, and the rear segment data of the data to be written is written to terminal
Next file piece present in file system;Otherwise, terminal automatically created in its file system it is required amount of and with
The front end data of the data to be written is written the backup file piece of the capacity such as next file piece at writing position value
In to original document piece, the Back end data of the data to be written is sequentially written in each backup file piece automatically created;Its
In, preceding segment data is in data to be written in the data between writing position and original document piece end position, rear segment data
For the data for removing after preceding segment data in data to be written;The quantity of backup file piece is the back segment data length of data to be written
The value that rounds up of quotient between next file piece capacity;It should be noted that preceding segment data herein and rear hop count
After (if any) split, that is, form entire data to be written described in the present embodiment;
Step 3-3, when capacity of the writing range beyond original document piece of data to be written, and in terminal document system not
There are when next file piece, which automatically creates requirement and the new file piece with preset capacity in its system,
And the preceding segment data for being written into data is written at writing position value in original document piece, is written into the rear hop count of data
According to being sequentially written in each new file piece automatically created;Wherein, the quantity of new file piece is the rear segment data of data to be written
The value that rounds up of quotient between length and the new file piece capacity;
Step 4, when terminal is read out data manipulation, the read range of data to be read is obtained;Wherein, data to be read
Read range be reading position value of the data to be read in terminal document system to the reading position value and data to be read
The section of the sum of length;
Step 5, according to the capacity of original document piece and the read range of data to be read, judge to be directed to data to be read
Further operating:
Step 5-1 shows continuing at this time when capacity of the read range of data to be read without departing from original document piece
Access then reads the data in original document piece according to being located only in original document piece at reading position value;
Step 5-2, when the read range of data to be read exceeds the capacity of original document piece, and terminal document Installed System Memory
In the files for storage piece of at least one storage data, terminal reads the data in original document piece as data to be read
Rear segment data as data to be read of preceding segment data, the data that are successively read in each files for storage piece;Wherein, herein
After preceding segment data and rear segment data (if any) split, that is, form entire data to be read described in the present embodiment;
Step 5-3, when capacity of the read range beyond original document piece of data to be read, and in terminal document system not
When in the presence of the files for storage piece for storing data, terminal reads the data conduct in original document piece at reading position and continues
The preceding segment data for evidence of fetching, and rear segment data of the empty data as data to be read is read automatically.Wherein, preceding segment data herein
After rear segment data (if any) split, that is, form entire data to be read described in the present embodiment.
Certainly, in the present embodiment, when terminal needs to reduce file size, terminal obtains the end of the file to be reduced
Position, and the later data in end of file position are removed by the terminal.Wherein, specifically, when the end of file of capacity to be reduced
There are when extra file piece after position, terminal just recycles extra file piece automatically.
In addition, the file title in terminal document system includes the file name and this document piece that this document piece is belonged to
Serial number in its belonged to file.For example, a file piece in terminal document system belongs to file A, this document piece exists
Serial number 02 in its belonged to file A, then this file title in terminal document system is exactly A_02.Certainly, as text
The definition format of part piece title can be set as needed, such as file piece name format can be set as " A_02 ", also may be used
To be set as " A02 ".
When terminal needs execution deletion such as file piece or file these target objects operation including file piece, eventually
End sets target object to be deleted to object to be deleted and stores;Wherein, target object mentioned here is file piece
Or include the file of file piece.It is stored by setting target object to be deleted to object to be deleted, text at this time
Either file piece can't be deleted immediately but the file being related to or file piece are set to file to be deleted or wait deleting part
Except file.These files to be deleted or file piece to be deleted are not present for users at this time, but thus can be with
Facilitate user by calling terminal document system to go to restore to obtain these files or file piece again.Certainly, in the present embodiment,
The target object is set as to be deleted right by terminal by the way that the header respective flag of target object is done set processing, to realize
As.
In order to save the space in terminal document system, the excessive occupied terminal file of file or file piece to be deleted system is avoided
System space, and then the space availability ratio of terminal document system is improved, in the present embodiment, terminal exists the object to be deleted of storage
Preset time complete deletion.Described preset time is the time that terminal receives stable power-supplying in the present embodiment.Certainly, this is pre-
If the time, which can also be user oneself, defines setting, such as, the preset time of delete target object is daily 0:00.
Although the preferred embodiment of the present invention described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Appoint made by all within the spirits and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. the file management method based on terminal document system, which is characterized in that include the following steps 1 to step 5:
Step 1, when the terminal needs to create the file of record data, matching this article is created in the terminal document system
The original document piece of part purposes;
Step 2, when the terminal carries out write-in data manipulation, the writing range of data to be written is obtained;Wherein, described to be written
The writing range of data be writing position value of the data to be written in terminal document system to the writing position value with wait for
The section of the sum of data length is written;
Step 3, according to the capacity of the original document piece and the writing range of the data to be written, judge to wait for for described
The further operating of data is written:
Step 3-1 is then waited for described when capacity of the writing range of the data to be written without departing from the original document piece
Write-in data are written in the original document piece;
Step 3-2, when the writing range of the data to be written exceeds the capacity of the original document piece, and the terminal document
Installed System Memory is in next file piece:
When next file piece capacity can accommodate the rear segment data of data to be written, then by the leading portion of the data to be written
Data are written at said write positional value in original document piece, and the rear segment data of the data to be written is written to terminal
Next file piece present in file system;Otherwise, terminal automatically created in its file system it is required amount of and with
The backup file piece of the capacity such as next file piece, by the front end data of the data to be written at said write positional value
It is written in original document piece, the Back end data of the data to be written is sequentially written in each backup file automatically created
In piece;Wherein, the preceding segment data is in data to be written in said write position and the original document piece end position
Between data, it is described after segment data be data to be written in remove the data after the preceding segment data;The backup file piece
Quantity be the data to be written back segment data length and next file piece capacity between quotient the value that rounds up;
Step 3-3, when the writing range of the data to be written exceeds the capacity of the original document piece, and the terminal document
When next file piece being not present in system, the terminal automatically creates requirement in its system and has preset capacity
New file piece, and the preceding segment data of the data to be written is written to the original document piece at said write positional value
It is interior, the rear segment data of the data to be written is sequentially written in each new file piece automatically created;Wherein, described new
The quantity of file piece be the data to be written back segment data length and the new file piece capacity between quotient round up
Value;
Step 4, when the terminal is read out data manipulation, the read range of data to be read is obtained;Wherein, described to be read
The read range of data be reading position value of the data to be read in terminal document system to the reading position value with wait for
Read the section of the sum of data length;
Step 5, according to the capacity of the original document piece and the read range of the data to be read, judge to wait for for described
Read the further operating of data:
Step 5-1, when capacity of the read range of the data to be read without departing from the original document piece, then in the reading
Take the data read at positional value in the original document piece;
Step 5-2, when the read range of the data to be read exceeds the capacity of the original document piece, and the terminal document
For Installed System Memory in the files for storage piece of at least one storage data, the terminal reads the number in the original document piece
According to the preceding segment data as the data to be read, the data that are successively read in each files for storage piece be used as described in continue access
According to rear segment data;
Step 5-3, when the read range of the data to be read exceeds the capacity of the original document piece, and the terminal document
There is no when the files for storage piece of storage data in system, the terminal reads the initial text at the reading position
Preceding segment data of the data as the data to be read in part piece, and empty data are read automatically as the data to be read
Segment data afterwards.
2. the file management method according to claim 1 based on terminal document system, which is characterized in that the terminal needs
When reducing file size, the terminal obtains the end position of the file to be reduced, and removes the end of file by the terminal
The later data in position.
3. the file management method according to claim 2 based on terminal document system, which is characterized in that when described to be reduced
There are when extra file piece after the end of file position of capacity, the terminal recycles the extra file piece automatically.
4. the file management method according to claim 1 based on terminal document system, which is characterized in that the terminal document
File title in system includes the sequence of the file name that this document piece is belonged to and this document piece in its belonged to file
Number.
5. the file management method according to claim 1 based on terminal document system, which is characterized in that further include:It is described
When terminal executes delete target Object Operations, terminal sets the target object to be deleted to object to be deleted and stores
The step of;Wherein, the target object is file piece or includes the file of file piece.
6. the file management method according to claim 5 based on terminal document system, which is characterized in that the terminal passes through
The header respective flag of the target object is done into set processing, the target object is set to object to be deleted to realize.
7. the file management method according to claim 5 based on terminal document system, which is characterized in that the terminal will deposit
The object to be deleted of storage is in preset time complete deletion.
8. the file management method according to claim 7 based on terminal document system, which is characterized in that the preset time
Receive the time of stable power-supplying for the terminal.
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CN115421649A (en) * | 2022-08-02 | 2022-12-02 | 佳源科技股份有限公司 | Indexable and extensible parameter file fragment storage system and method |
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