CN103873522A - Electronic equipment, and file partitioning method applied to same - Google Patents
Electronic equipment, and file partitioning method applied to same Download PDFInfo
- Publication number
- CN103873522A CN103873522A CN201210546290.0A CN201210546290A CN103873522A CN 103873522 A CN103873522 A CN 103873522A CN 201210546290 A CN201210546290 A CN 201210546290A CN 103873522 A CN103873522 A CN 103873522A
- Authority
- CN
- China
- Prior art keywords
- file
- files
- blocks
- initial address
- file block
- 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.)
- Granted
Links
Images
Abstract
The invention discloses electronic equipment, and a file partitioning method applied to the same. The method is applied to the electronic equipment, and comprises the following steps of receiving a file modification operation; obtaining a file partitioning range corresponding to the file modification operation according to the file modification operation and a first partitioning result; obtaining a first file partitioning instruction; carrying out a first partitioning operation on data in the file partitioning range according to the first file partitioning instruction to generate a second partitioning result; when obtaining a file synchronization instruction, transmitting the changed file block according to the second partitioning result. By utilizing a partitioning history result, after a file is modified, the file partitioning range corresponding to the file modification operation can be obtained, and only the data in the file portioning range is re-partitioned, so that the file partitioning time is shortened, the file partitioning efficiency is improved, and the amount of data transmitted when the file is synchronized is reduced.
Description
Technical field
The present invention relates to communication technical field, be specifically related to a kind of electronic equipment and be applied to the file block method of electronic equipment.
Background technology
Between mobile device and cloud server, in reciprocal process, may produce the transmission of repeating data, this has reduced the synchronous efficiency of data to a great extent.For example: in some files, user may only change several bytes wherein, if synchronized algorithm still uploads to whole file in cloud server completely, can cause meaningless flow expense and time overhead.Therefore, need to adopt the mode of a upload file difference part to carry out file synchronization.
Current difference algorithm all needs in advance whole file to be carried out to piecemeal, in the prior art the general variable-length cutting method that adopts content-based piecemeal.But, this method need to scan file block to whole file, even if modification scope is very little, after each file modification, all needs whole file to rescan and carry out file block, obtaining after file block result, then transfer files difference part is carried out file synchronization.After file modification, file entirety is entered to Line Scan Partitioning, in the time of file block, the part not changing is repeated to a point block operations on the one hand, can cause the problem of length, inefficiency consuming time, on the other hand, also may cause file block results change larger, increase the data volume of file synchronization time difference portions transmission.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of electronic equipment and is applied to the file block method of electronic equipment, the problem that while carrying out file block to solve prior art, transmitted data amount increases when inefficiency, file synchronization.
For addressing the above problem, technical scheme provided by the invention is as follows:
A kind of file block method, described method is applied in an electronic equipment, and described method comprises:
The operation of reception file modification;
According to described file modification operation and the first piecemeal result, obtain described file modification and operate corresponding file block scope;
Obtain one first file block instruction;
According to described the first file block instruction, the data within the scope of described file block are carried out to first point of block operations, produce the second piecemeal result;
While obtaining a file synchronization instruction, according to described the second piecemeal result, the blocks of files that transmission changes.
Preferably, before described reception file modification operation, described method also comprises:
Judge whether to exist the second piecemeal result, produce the first judged result;
In the time that described the first judged result represents to exist the second piecemeal result, the second piecemeal result is transformed to the first piecemeal result;
In the time that described the first judged result represents not exist the second piecemeal result, obtain after one second file block instruction, according to described the second file block instruction, the total data of file is carried out to second point of block operations, produce the first piecemeal result.
Preferably, describedly obtain described file modification and operate corresponding file block scope according to the operation of described file modification and the first piecemeal result, comprising:
According to described file modification operation, obtain initial address and the termination address of described file modification operation;
According to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope.
Preferably, in the time that described file modification is operating as update, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, comprising:
Judge whether the initial address of described update and the difference of termination address are less than first threshold, produce the second judged result;
In the time that described the second judged result represents that the initial address of described update and the difference of termination address are less than first threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update;
In the time that described the second judged result represents that the initial address of described update and the difference of termination address are more than or equal to first threshold, judge whether the initial address of described update and the difference of termination address are less than Second Threshold, produce the 3rd judged result;
In the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are less than Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update and the blocks of files adjacent with the termination address place blocks of files of described update;
In the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are more than or equal to Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update.
Preferably, in the time that described file modification is operating as deletion action, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, comprising:
Judge whether the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, produce the 4th judged result;
In the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action and described deletion action;
In the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are more than or equal to the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action, described deletion action and the blocks of files adjacent with the termination address place blocks of files of described deletion action.
Preferably, in the time that described file modification is operating as replacement operation, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, comprising:
According to the initial address of described replacement operation and termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the blocks of files between the termination address place blocks of files of the termination address place blocks of files of the initial address place blocks of files that described file block scope is described replacement operation, described replacement operation and the initial address place blocks of files of described replacement operation and described replacement operation.
Preferably, after the described file modification of described acquisition operates corresponding file block scope, described method also comprises:
Record and preserve described file block scope.
Preferably, when described acquisition one file synchronization instruction, according to described the second piecemeal result, the blocks of files that transmission changes, comprising:
According to described the second piecemeal result, obtain the fingerprint value of each blocks of files;
While obtaining a file synchronization instruction, transmit the blocks of files that described fingerprint value changes.
The present invention also provides a kind of electronic equipment, it is characterized in that, described electronic equipment comprises:
The first receiving element, for receiving file modification operation;
First obtains unit, for according to described file modification operation and the first piecemeal result, obtains described file modification and operates corresponding file block scope;
Second obtains unit, for obtaining one first file block instruction;
First point of module unit, for according to described the first file block instruction, carries out first point of block operations to the data within the scope of described file block, produces the second piecemeal result;
File synchronization unit, when obtaining a file synchronization instruction, according to described the second piecemeal result, the blocks of files that transmission changes.
Preferably, described electronic equipment also comprises:
The first judging unit, for judging whether to exist the second piecemeal result, produces the first judged result;
The first converter unit, in the time that described the first judged result represents to exist the second piecemeal result, is transformed to the first piecemeal result by the second piecemeal result;
Second point of module unit, application, in the time that described the first judged result represents not exist the second piecemeal result, obtains after one second file block instruction, according to described the second file block instruction, the total data of file is carried out to second point of block operations, produce the first piecemeal result.
Preferably, described the first acquisition unit comprises:
First obtains subelement, for according to described file modification operation, obtains initial address and the termination address of described file modification operation;
Second obtains subelement, according to described initial address and described termination address, compares with the first piecemeal result, obtains described file modification and operates corresponding file block scope.
Preferably, in the time that described file modification is operating as update, described second obtains subelement comprises:
The first judgment sub-unit, for judging whether the initial address of described update and the difference of termination address are less than first threshold, produces the second judged result;
The 3rd obtains subelement, in the time that described the second judged result represents that the initial address of described update and the difference of termination address are less than first threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update;
The second judgment sub-unit, for in the time that described the second judged result represents that the initial address of described update and the difference of termination address are more than or equal to first threshold, judge whether the initial address of described update and the difference of termination address are less than Second Threshold, produce the 3rd judged result;
The 4th obtains subelement, for in the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are less than Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update and the blocks of files adjacent with the termination address place blocks of files of described update;
The 5th obtains subelement, for in the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are more than or equal to Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update.
Preferably, in the time that described file modification is operating as deletion action, described second obtains subelement comprises:
The 3rd judgment sub-unit, for judging whether the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, produces the 4th judged result;
The 6th obtains subelement, for in the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action and described deletion action;
The 7th obtains subelement, for in the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are more than or equal to the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action, described deletion action and the blocks of files adjacent with the termination address place blocks of files of described deletion action.
Preferably, in the time that described file modification is operating as replacement operation, described second obtain subelement specifically for:
According to the initial address of described replacement operation and termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the blocks of files between the termination address place blocks of files of the termination address place blocks of files of the initial address place blocks of files that described file block scope is described replacement operation, described replacement operation and the initial address place blocks of files of described replacement operation and described replacement operation.
Preferably, described electronic equipment also comprises:
Storage unit, for recording and preserve described file block scope.
Preferably, described file synchronization unit comprises:
The 8th obtains subelement, for according to described the second piecemeal result, obtains the fingerprint value of each blocks of files;
File transfer subelement, when obtaining a file synchronization instruction, transmits the blocks of files that described fingerprint value changes.
As can be seen here, the present invention has following beneficial effect:
The present invention utilizes piecemeal historical results, after file modification, can obtain file modification and operate corresponding file block scope, be that locating file is revised related blocks of files, only carry out piecemeal again for the data within the scope of file block, reduce the time of file block, improved the efficiency of file block.Simultaneously, only the data within the scope of file block are carried out to piecemeal again, can not affect the piecemeal historical results of other parts of file, in the time that needs carry out file synchronization, only need transmit the blocks of files changing, the data volume of having transmitted while having reduced file synchronization according to new piecemeal result.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the flow chart of file block embodiment of the method 1 of the present invention;
Fig. 2 is the flow chart of file block embodiment of the method 2 of the present invention;
Fig. 3 is the flow chart of file block embodiment of the method 3 of the present invention;
Fig. 4 is the schematic diagram of file block method of the present invention in the time of the 1st kind of situation of update;
Fig. 5 is the schematic diagram of file block method of the present invention in the time of the 2nd kind of situation of update;
Fig. 6 is the schematic diagram of file block method of the present invention in the time of the 3rd kind of situation of update;
Fig. 7 is the flow chart of file block embodiment of the method 4 of the present invention;
Fig. 8 is the schematic diagram of file block method of the present invention in the time of the 1st kind of situation of deletion action;
Fig. 9 is the schematic diagram of file block method of the present invention in the time of the 2nd kind of situation of deletion action;
Figure 10 is the schematic diagram of electronic equipment embodiment 1 of the present invention;
Figure 11 is the schematic diagram of electronic equipment embodiment 2 of the present invention;
Figure 12 is the schematic diagram of electronic equipment embodiment 3 of the present invention;
Figure 13 is the schematic diagram of electronic equipment embodiment 4 of the present invention;
Figure 14 is the schematic diagram of electronic equipment embodiment 5 of the present invention;
Figure 15 is the schematic diagram of electronic equipment embodiment 6 of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the embodiment of the present invention is described in further detail.
The invention provides a kind of electronic equipment and be applied to the file block method of electronic equipment,
Shown in Figure 1, be the flow chart of file block embodiment of the method 1 of the present invention, described method is applied in an electronic equipment, and described method comprises:
Step 101: receive file modification operation.
User is opening an existing file or is creating after a new file, can be to the file operation of modifying, to the modification of file concrete can comprise the replacement operation that update, deletion action and deletion insertion are carried out simultaneously.File modification operation can be monitored and receive to electronic equipment, as the equipment of user's direct control, in real time.
In actual applications, can be by calling the mode of file access interface when the file operation, for example call based on linux normative document accessing operation interface (read write open close etc.), receive and log file retouching operation to facilitate.
Step 102: according to described file modification operation and the first piecemeal result, obtain described file modification and operate corresponding file block scope.
The first piecemeal result can be thought historical piecemeal result, can log history piecemeal result in electronic equipment, can specifically comprise that the last file of record is divided into after several blocks of files and former documentary corresponding relation.
Historical piecemeal result can represent by the mapping table of a description document piecemeal, and this file block mapping table can comprise: blocks of files ID, blocks of files size, blocks of files initial address and blocks of files are in the sequence number of file inside.
In the time that file is modified, initial address and the termination address that can obtain by calling file interface file modification position, which blocks of files is the part that obtains file modification according to the corresponding relation between blocks of files and modified address in file block mapping table be positioned in based on historical piecemeal result.
Obtaining behind the position of file modification, can be according to the different feature of update, deletion action or replacement operation in file modification operation, obtain file modification and operate corresponding file block scope, file modification operates the scope that corresponding file block scope needs to re-start file block.
It should be noted that and remove in the situation that each blocks of files has been carried out revising, file modification operates corresponding file block scope and is less than whole file extent.
Step 103: obtain one first file block instruction.
Obtaining the concrete mode of the first file block instruction can be: after file modification completes, user preserves after file close file, is to input the first file block instruction to electronic equipment.
Step 104: according to described the first file block instruction, the data within the scope of described file block are carried out to first point of block operations, produce the second piecemeal result.
Can adopt CDC (content-defined chunking, content-based piecemeal) algorithm carries out first point of block operations to the data within the scope of file block, CDC algorithm is a kind of elongated block algorithm, carry out blocks of files cutting based on file content, the blocks of files size obtaining after file block is transformable.The blocks of files that CDC algorithm can application data fingerprint (as Rabin fingerprint) becomes length to differ in size file division.In algorithm implementation, utilize the sliding window of a fixed size to file data calculated data fingerprint.And compare with a preset value, if equated, the match is successful, the cutting position using this window's position as a file block.
Adopt CDC algorithm to carry out first point of block operations to the data within the scope of file block, produce the second piecemeal result, the second piecemeal result can be thought this piecemeal result.Only the data within the scope of file block corresponding to file modification are re-started to a point block operations, divide and do not need that the data within the scope of All Files are carried out again to piecemeal.But it should be noted that the every terms of information in the mapping table that also needs to revise description document piecemeal, comprise that blocks of files ID, blocks of files are in sequence number of file inside etc.
Step 105: while obtaining a file synchronization instruction, according to described the second piecemeal result, the blocks of files that transmission changes.
In this step, can, according to described the second piecemeal result, obtain the fingerprint value of each blocks of files; While obtaining a file synchronization instruction, transmit the blocks of files that described fingerprint value changes.
The fingerprint value of each blocks of files is different from the data fingerprint in CDC algorithm, can represent each blocks of files with the fingerprint value of each blocks of files, and each blocks of files is distinguished by different fingerprint values.
In the time obtaining file synchronization instruction, judge by the fingerprint value of each blocks of files, the blocks of files that only transmission changes, needn't transmit the blocks of files that other do not change.
Like this, the present invention can utilize piecemeal historical results, after file modification, can obtain file modification and operate corresponding file block scope, be that locating file is revised related blocks of files, only carry out piecemeal again for the data within the scope of file block, reduced the time of file block, improved the efficiency of file block.Simultaneously, only the data within the scope of file block are carried out to piecemeal again, can not affect the piecemeal historical results of other parts of file, in the time that needs carry out file synchronization, only need transmit the blocks of files changing, the data volume of having transmitted while having reduced file synchronization according to new piecemeal result.
Shown in Figure 2, be the flow chart of file block embodiment of the method 2 of the present invention, can comprise the following steps:
Step 201: judge whether to exist the second piecemeal result, produce the first judged result;
Step 202: in the time that described the first judged result represents to exist the second piecemeal result, the second piecemeal result is transformed to the first piecemeal result;
Step 203: in the time that described the first judged result represents not exist the second piecemeal result, obtain after one second file block instruction, according to described the second file block instruction, the total data of file is carried out to second point of block operations, produce the first piecemeal result.
If user creates a new file, preserve after file close file, owing to there is no historical piecemeal record, therefore, need to scan whole file, the total data of file is carried out to second point of block operations, produce the first piecemeal result.The total data of file is carried out to second point of block operations and equally also can adopt CD C algorithm, first point of block operations is different from second point of block operations, difference is file block scope difference, first point of block operations is that the data that file modification is operated within the scope of corresponding file block are divided block operations, and second point of block operations is to divide block operations to the total data in whole file extent.And remove in the situation that each blocks of files has been carried out revising, file modification operates corresponding file block scope and is less than whole file extent.
In addition, if user opens is an existing file, receiving before file modification operation, the piecemeal result that can first last piecemeal be produced, as historical piecemeal result, namely be transformed to the first piecemeal result by the second piecemeal result.
Step 204: receive file modification operation;
Step 205: according to described file modification operation and the first piecemeal result, obtain described file modification and operate corresponding file block scope;
Step 206: obtain one first file block instruction.
Step 207: according to described the first file block instruction, the data within the scope of described file block are carried out to first point of block operations, produce the second piecemeal result.
Step 208: while obtaining a file synchronization instruction, according to described the second piecemeal result, the blocks of files that transmission changes.
Step 204-step 208 is identical with step 101-step 105, repeats no more herein.
Below can also be in conjunction with instantiation further to according to the operation of described file modification and the first piecemeal result, obtain described file modification and operate corresponding file block scope and explain.
First,, according to described file modification operation, obtain initial address and the termination address of described file modification operation;
Afterwards, according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope.
Concrete, according to the difference of file operation type, below respectively when file is carried out to update, deletion action and replacement operation, how to obtain described file modification and operate corresponding file block scope and describe.
Shown in Figure 3, for the flow chart of file block embodiment of the method 3 of the present invention, in the time that described file modification is operating as update, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, can comprise the following steps:
Step 301: judge whether the initial address of described update and the difference of termination address are less than first threshold, produce the second judged result;
Step 302: in the time that described the second judged result represents that the initial address of described update and the difference of termination address are less than first threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update;
Step 303: in the time that described the second judged result represents that the initial address of described update and the difference of termination address are more than or equal to first threshold, judge whether the initial address of described update and the difference of termination address are less than Second Threshold, produce the 3rd judged result;
Step 304: in the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are less than Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update and the blocks of files adjacent with the termination address place blocks of files of described update;
Step 305: in the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are more than or equal to Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update.
In the time that described file modification is operating as update, can be divided into three kinds of situations, the data of insertion are little, when the initial address of update and the difference of termination address are less than first threshold; The data of inserting are a lot, when the initial address of update and the difference of termination address are more than or equal to Second Threshold; Or the situation of above two kinds of situations compromise, when the initial address of update and the difference of termination address are more than or equal to first threshold and are less than Second Threshold.
Shown in Figure 4, in the time that the data content inserting is little, it can be the initial address place blocks of files of update that file modification operates corresponding file block scope, only file modification being operated to corresponding file block scope is that the initial address place blocks of files of update is carried out first point of block operations, produce the second piecemeal result, the blocks of files that only transmission changes when needed.
Shown in Figure 5, in the time that the data content inserting is a lot, it can be also the initial address place blocks of files of update that same file modification operates corresponding file block scope, only file modification being operated to corresponding file block scope is that the initial address place blocks of files of update is carried out first point of block operations, produce the second piecemeal result, the blocks of files that only transmission changes when needed.
Shown in Figure 6, and when between above two kinds of situations, file modification operate corresponding file block scope can for the initial address place blocks of files of update with and adjacent blocks of files afterwards, only to file modification operate corresponding file block scope be the initial address place blocks of files of update and afterwards adjacent blocks of files carry out first point of block operations, produce the second piecemeal result, the blocks of files that only transmission changes when needed.
Can guarantee like this file to carry out after update, needing again the blocks of files of piecemeal is that file modification operates corresponding file block scope and reduces as far as possible, also can guarantee the data volume of transmitting when improving the efficiency of piecemeal as far as possible and reducing file synchronization.
Shown in Figure 7, for the flow chart of file block embodiment of the method 4 of the present invention, in the time that described file modification is operating as deletion action, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, can comprise the following steps:
Step 401: judge whether the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, produce the 4th judged result;
Step 402: in the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action and described deletion action;
Step 403: in the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are more than or equal to the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action, described deletion action and the blocks of files adjacent with the termination address place blocks of files of described deletion action.
In the time that described file modification is operating as deletion action, can be divided into two kinds of situations, when the initial address of deletion action and the difference of termination address are less than the 3rd threshold value and when the initial address of deletion action and the difference of termination address are more than or equal to the 3rd threshold value.
In the time that the initial address of deletion action and the difference of termination address are less than the 3rd threshold value, the initial address place blocks of files that file block scope is described deletion action and the termination address place blocks of files of described deletion action, shown in Figure 8, if the initial address of deletion action and termination address are at same file piece, file block scope can be the blocks of files at this deletion action place, only file modification being operated to corresponding file block scope is that the blocks of files at deletion action place is carried out first point of block operations, produce the second piecemeal result, the blocks of files that only transmission changes when needed, if the initial address of deletion action is from termination address in different blocks of files, not shown in Fig. 8, file block scope can be the initial address of the deletion action of deletion action after completing and the termination address blocks of files at place respectively.
Shown in Figure 9, in the time that the initial address of deletion action and the difference of termination address are more than or equal to the 3rd threshold value, the initial address place blocks of files that file block scope is deletion action, the termination address place blocks of files of deletion action and the blocks of files afterwards adjacent with the termination address place blocks of files of deletion action, only file modification is operated to corresponding file block scope carries out first point of block operations, produce the second piecemeal result, the blocks of files that only transmission changes when needed.
Can guarantee like this file to carry out after deletion action, needing again the blocks of files of piecemeal is that file modification operates corresponding file block scope and reduces as far as possible, also can guarantee the data volume of transmitting when improving the efficiency of piecemeal as far as possible and reducing file synchronization.
And in the time that described file modification is operating as replacement operation, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, can be specially:
According to the initial address of described replacement operation and termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the blocks of files between the termination address place blocks of files of the termination address place blocks of files of the initial address place blocks of files that described file block scope is described replacement operation, described replacement operation and the initial address place blocks of files of described replacement operation and described replacement operation.
When file modification is operating as replacement operation, determine that file block scope is comparatively simple, if the initial address of replacement operation and termination address are at identical file piece, file block scope is this replacement operation place blocks of files, if the initial address of replacement operation and termination address are in adjacent blocks of files, the initial address that file block scope is replacement operation and termination address be residing blocks of files respectively, if the initial address of replacement operation and termination address are in non-conterminous blocks of files, file block scope is, the initial address of replacement operation and termination address respectively residing blocks of files and between blocks of files.
Same, can guarantee like this file to carry out after replacement operation, needing again the blocks of files of piecemeal is that file modification operates corresponding file block scope and reduces as far as possible, also can guarantee the data volume of transmitting when improving the efficiency of piecemeal as far as possible and reducing file synchronization.
If carried out many places file modification at a File Open and between closing, update, deletion action and replacement operation for example between different blocks of files, are carried out simultaneously, need to record many places and revise the blocks of files position being positioned at, the blocks of files that can adopt the mode mark of putting flag bit to revise, and based on historical piecemeal record, obtain respectively these file modifications and operate corresponding file block scope, record and preserve these file block scopes, can be kept in local data base.
Accordingly, the present invention also provides a kind of electronic equipment, shown in Figure 10, is the schematic diagram of electronic equipment embodiment 1 of the present invention, and described electronic equipment can comprise:
The first receiving element 501, for receiving file modification operation;
First obtains unit 502, for according to described file modification operation and the first piecemeal result, obtains described file modification and operates corresponding file block scope;
Second obtains unit 503, for obtaining one first file block instruction;
First point of module unit 504, for according to described the first file block instruction, carries out first point of block operations to the data within the scope of described file block, produces the second piecemeal result;
Shown in Figure 11, be the schematic diagram of electronic equipment embodiment 2 of the present invention, described electronic equipment can also comprise:
The first judging unit 601, for judging whether to exist the second piecemeal result, produces the first judged result;
The first converter unit 602, in the time that described the first judged result represents to exist the second piecemeal result, is transformed to the first piecemeal result by the second piecemeal result;
Second point of module unit 603, application, in the time that described the first judged result represents not exist the second piecemeal result, obtains after one second file block instruction, according to described the second file block instruction, the total data of file is carried out to second point of block operations, produce the first piecemeal result.
Shown in Figure 12, be the schematic diagram of electronic equipment embodiment 3 of the present invention, described first obtains unit 502 can comprise:
First obtains subelement 701, for according to described file modification operation, obtains initial address and the termination address of described file modification operation;
Second obtains subelement 702, according to described initial address and described termination address, compares with the first piecemeal result, obtains described file modification and operates corresponding file block scope.
Shown in Figure 13, be the schematic diagram of electronic equipment embodiment 4 of the present invention, in the time that described file modification is operating as update, described second obtains subelement 702 can comprise:
The first judgment sub-unit 801, for judging whether the initial address of described update and the difference of termination address are less than first threshold, produces the second judged result;
The 3rd obtains subelement 802, in the time that described the second judged result represents that the initial address of described update and the difference of termination address are less than first threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update;
The second judgment sub-unit 803, for in the time that described the second judged result represents that the initial address of described update and the difference of termination address are more than or equal to first threshold, judge whether the initial address of described update and the difference of termination address are less than Second Threshold, produce the 3rd judged result;
The 4th obtains subelement 804, for in the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are less than Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update and the blocks of files adjacent with the termination address place blocks of files of described update;
The 5th obtains subelement 805, for in the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are more than or equal to Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update.
Shown in Figure 14, be the schematic diagram of electronic equipment embodiment 5 of the present invention, in the time that described file modification is operating as deletion action, described second obtains subelement 702 can comprise:
The 3rd judgment sub-unit 901, for judging whether the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, produces the 4th judged result;
The 6th obtains subelement 902, for in the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action and described deletion action;
The 7th obtains subelement 903, for in the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are more than or equal to the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action, described deletion action and the blocks of files adjacent with the termination address place blocks of files of described deletion action.
In the time that described file modification is operating as replacement operation, described second obtains subelement 702 can be specifically for:
According to the initial address of described replacement operation and termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the blocks of files between the termination address place blocks of files of the termination address place blocks of files of the initial address place blocks of files that described file block scope is described replacement operation, described replacement operation and the initial address place blocks of files of described replacement operation and described replacement operation.
In addition, described electronic equipment can also comprise: storage unit, and for recording and preserve described file block scope.
Shown in Figure 15, be the schematic diagram of electronic equipment embodiment 6 of the present invention, described file synchronization unit 505 can comprise:
The 8th obtains subelement 1001, for according to described the second piecemeal result, obtains the fingerprint value of each blocks of files;
Like this, the present invention utilizes piecemeal historical results, after file modification, can obtain file modification and operate corresponding file block scope, be that locating file is revised related blocks of files, only carry out piecemeal again for the data within the scope of file block, reduced the time of file block, improved the efficiency of file block.Simultaneously, only the data within the scope of file block are carried out to piecemeal again, can not affect the piecemeal historical results of other parts of file, in the time that needs carry out file synchronization, only need transmit the blocks of files changing, the data volume of having transmitted while having reduced file synchronization according to new piecemeal result.
It should be noted that, in this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.For the disclosed system of embodiment or device, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates referring to method part.
Also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the present invention.To be apparent for those skilled in the art to the multiple modification of these embodiment, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (16)
1. a file block method, is characterized in that, described method is applied in an electronic equipment, and described method comprises:
The operation of reception file modification;
According to described file modification operation and the first piecemeal result, obtain described file modification and operate corresponding file block scope;
Obtain one first file block instruction;
According to described the first file block instruction, the data within the scope of described file block are carried out to first point of block operations, produce the second piecemeal result;
While obtaining a file synchronization instruction, according to described the second piecemeal result, the blocks of files that transmission changes.
2. method according to claim 1, is characterized in that, before described reception file modification operation, described method also comprises:
Judge whether to exist the second piecemeal result, produce the first judged result;
In the time that described the first judged result represents to exist the second piecemeal result, the second piecemeal result is transformed to the first piecemeal result;
In the time that described the first judged result represents not exist the second piecemeal result, obtain after one second file block instruction, according to described the second file block instruction, the total data of file is carried out to second point of block operations, produce the first piecemeal result.
3. method according to claim 2, is characterized in that, describedly obtains described file modification and operates corresponding file block scope according to the operation of described file modification and the first piecemeal result, comprising:
According to described file modification operation, obtain initial address and the termination address of described file modification operation;
According to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope.
4. method according to claim 3, is characterized in that, in the time that described file modification is operating as update, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, comprising:
Judge whether the initial address of described update and the difference of termination address are less than first threshold, produce the second judged result;
In the time that described the second judged result represents that the initial address of described update and the difference of termination address are less than first threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update;
In the time that described the second judged result represents that the initial address of described update and the difference of termination address are more than or equal to first threshold, judge whether the initial address of described update and the difference of termination address are less than Second Threshold, produce the 3rd judged result;
In the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are less than Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update and the blocks of files adjacent with the termination address place blocks of files of described update;
In the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are more than or equal to Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update.
5. method according to claim 3, is characterized in that, in the time that described file modification is operating as deletion action, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, comprising:
Judge whether the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, produce the 4th judged result;
In the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action and described deletion action;
In the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are more than or equal to the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action, described deletion action and the blocks of files adjacent with the termination address place blocks of files of described deletion action.
6. method according to claim 3, is characterized in that, in the time that described file modification is operating as replacement operation, described according to described initial address and described termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, comprising:
According to the initial address of described replacement operation and termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the blocks of files between the termination address place blocks of files of the termination address place blocks of files of the initial address place blocks of files that described file block scope is described replacement operation, described replacement operation and the initial address place blocks of files of described replacement operation and described replacement operation.
7. according to the method described in claim 4-6 any one, it is characterized in that, after the described file modification of described acquisition operates corresponding file block scope, described method also comprises:
Record and preserve described file block scope.
8. method according to claim 1, is characterized in that, when described acquisition one file synchronization instruction, according to described the second piecemeal result, the blocks of files that transmission changes, comprising:
According to described the second piecemeal result, obtain the fingerprint value of each blocks of files;
While obtaining a file synchronization instruction, transmit the blocks of files that described fingerprint value changes.
9. an electronic equipment, is characterized in that, described electronic equipment comprises:
The first receiving element, for receiving file modification operation;
First obtains unit, for according to described file modification operation and the first piecemeal result, obtains described file modification and operates corresponding file block scope;
Second obtains unit, for obtaining one first file block instruction;
First point of module unit, for according to described the first file block instruction, carries out first point of block operations to the data within the scope of described file block, produces the second piecemeal result;
File synchronization unit, when obtaining a file synchronization instruction, according to described the second piecemeal result, the blocks of files that transmission changes.
10. electronic equipment according to claim 9, is characterized in that, described electronic equipment also comprises:
The first judging unit, for judging whether to exist the second piecemeal result, produces the first judged result;
The first converter unit, in the time that described the first judged result represents to exist the second piecemeal result, is transformed to the first piecemeal result by the second piecemeal result;
Second point of module unit, application, in the time that described the first judged result represents not exist the second piecemeal result, obtains after one second file block instruction, according to described the second file block instruction, the total data of file is carried out to second point of block operations, produce the first piecemeal result.
11. electronic equipments according to claim 10, is characterized in that, described first obtains unit comprises:
First obtains subelement, for according to described file modification operation, obtains initial address and the termination address of described file modification operation;
Second obtains subelement, according to described initial address and described termination address, compares with the first piecemeal result, obtains described file modification and operates corresponding file block scope.
12. electronic equipments according to claim 11, is characterized in that, in the time that described file modification is operating as update, described second obtains subelement comprises:
The first judgment sub-unit, for judging whether the initial address of described update and the difference of termination address are less than first threshold, produces the second judged result;
The 3rd obtains subelement, in the time that described the second judged result represents that the initial address of described update and the difference of termination address are less than first threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update;
The second judgment sub-unit, for in the time that described the second judged result represents that the initial address of described update and the difference of termination address are more than or equal to first threshold, judge whether the initial address of described update and the difference of termination address are less than Second Threshold, produce the 3rd judged result;
The 4th obtains subelement, for in the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are less than Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update and the blocks of files adjacent with the termination address place blocks of files of described update;
The 5th obtains subelement, for in the time that described the 3rd judged result represents that the initial address of described update and the difference of termination address are more than or equal to Second Threshold, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the initial address place blocks of files that described file block scope is described update.
13. electronic equipments according to claim 11, is characterized in that, in the time that described file modification is operating as deletion action, described second obtains subelement, comprising:
The 3rd judgment sub-unit, for judging whether the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, produces the 4th judged result;
The 6th obtains subelement, for in the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are less than the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action and described deletion action;
The 7th obtains subelement, for in the time that described the 4th judged result represents that the initial address of described deletion action and the difference of termination address are more than or equal to the 3rd threshold value, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the termination address place blocks of files of the initial address place blocks of files that described file block scope is described deletion action, described deletion action and the blocks of files adjacent with the termination address place blocks of files of described deletion action.
14. electronic equipments according to claim 11, is characterized in that, in the time that described file modification is operating as replacement operation, described second obtain subelement specifically for:
According to the initial address of described replacement operation and termination address, compare with the first piecemeal result, obtain described file modification and operate corresponding file block scope, the blocks of files between the termination address place blocks of files of the termination address place blocks of files of the initial address place blocks of files that described file block scope is described replacement operation, described replacement operation and the initial address place blocks of files of described replacement operation and described replacement operation.
15. according to the electronic equipment described in claim 12-14, it is characterized in that, described electronic equipment also comprises:
Storage unit, for recording and preserve described file block scope.
16. electronic equipments according to claim 9, is characterized in that, described file synchronization unit comprises:
The 8th obtains subelement, for according to described the second piecemeal result, obtains the fingerprint value of each blocks of files;
File transfer subelement, when obtaining a file synchronization instruction, transmits the blocks of files that described fingerprint value changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546290.0A CN103873522B (en) | 2012-12-14 | 2012-12-14 | A kind of electronic equipment and the file block method applied to electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210546290.0A CN103873522B (en) | 2012-12-14 | 2012-12-14 | A kind of electronic equipment and the file block method applied to electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103873522A true CN103873522A (en) | 2014-06-18 |
| CN103873522B CN103873522B (en) | 2018-07-06 |
Family
ID=50911643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210546290.0A Active CN103873522B (en) | 2012-12-14 | 2012-12-14 | A kind of electronic equipment and the file block method applied to electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103873522B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092780A (en) * | 2014-07-29 | 2014-10-08 | 中国联合网络通信集团有限公司 | File modification method and device and monofile synchronization method and device based on file blocks |
| CN104780048A (en) * | 2015-04-13 | 2015-07-15 | 中国电子科技集团公司第二十八研究所 | Lightweight mirror image file encryption system and method |
| CN110914800A (en) * | 2017-07-20 | 2020-03-24 | Arm有限公司 | Register-based complex processing |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070028064A1 (en) * | 2005-07-28 | 2007-02-01 | Mcbrearty Gerald F | Method for suspending mirrored writes during large data transfers |
| CN101788976A (en) * | 2010-02-10 | 2010-07-28 | 北京播思软件技术有限公司 | File splitting method based on contents |
| CN102065098A (en) * | 2010-12-31 | 2011-05-18 | 网宿科技股份有限公司 | Method and system for synchronizing data among network nodes |
| CN102571709A (en) * | 2010-12-16 | 2012-07-11 | 腾讯科技（北京）有限公司 | Method for uploading file, client, server and system |
| CN102624871A (en) * | 2012-02-03 | 2012-08-01 | 杭州杰唐信息技术有限公司 | Remote file synchronizing method realized based on distributed enterprise service bus |
| CN102629247A (en) * | 2011-12-31 | 2012-08-08 | 成都市华为赛门铁克科技有限公司 | Method, device and system for data processing |
-
2012
- 2012-12-14 CN CN201210546290.0A patent/CN103873522B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070028064A1 (en) * | 2005-07-28 | 2007-02-01 | Mcbrearty Gerald F | Method for suspending mirrored writes during large data transfers |
| CN101788976A (en) * | 2010-02-10 | 2010-07-28 | 北京播思软件技术有限公司 | File splitting method based on contents |
| CN102571709A (en) * | 2010-12-16 | 2012-07-11 | 腾讯科技（北京）有限公司 | Method for uploading file, client, server and system |
| CN102065098A (en) * | 2010-12-31 | 2011-05-18 | 网宿科技股份有限公司 | Method and system for synchronizing data among network nodes |
| CN102629247A (en) * | 2011-12-31 | 2012-08-08 | 成都市华为赛门铁克科技有限公司 | Method, device and system for data processing |
| CN102624871A (en) * | 2012-02-03 | 2012-08-01 | 杭州杰唐信息技术有限公司 | Remote file synchronizing method realized based on distributed enterprise service bus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092780A (en) * | 2014-07-29 | 2014-10-08 | 中国联合网络通信集团有限公司 | File modification method and device and monofile synchronization method and device based on file blocks |
| CN104780048A (en) * | 2015-04-13 | 2015-07-15 | 中国电子科技集团公司第二十八研究所 | Lightweight mirror image file encryption system and method |
| CN104780048B (en) * | 2015-04-13 | 2018-04-10 | 中国电子科技集团公司第二十八研究所 | The image file encryption system and method for a kind of lightweight |
| CN110914800A (en) * | 2017-07-20 | 2020-03-24 | Arm有限公司 | Register-based complex processing |
| CN110914800B (en) * | 2017-07-20 | 2023-12-05 | Arm有限公司 | Register-based complex processing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103873522B (en) | 2018-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2344959B1 (en) | Index compression in databases | |
| CN104090806B (en) | The processing method and processing device of AKU, upgrade request | |
| CN103294447B (en) | A kind of method and apparatus generating random number | |
| CN106708443B (en) | Data reading and writing method and device | |
| CN109857803B (en) | Data synchronization method, device, equipment, system and computer readable storage medium | |
| CN103995855A (en) | Method and device for storing data | |
| CN102567522B (en) | Method and device for managing file system of intelligent card | |
| CN103077208B (en) | URL(uniform resource locator) matched processing method and device | |
| CN111813813B (en) | Data management method, device, equipment and storage medium | |
| CN108595503A (en) | Document handling method and server | |
| CN105653484A (en) | Data block-oriented compression multi-path transmission method | |
| CN102866954A (en) | Method and device for allocating internal memory | |
| CN103873522A (en) | Electronic equipment, and file partitioning method applied to same | |
| CN103825945A (en) | Fragmentation storage method and user terminal | |
| CN104615459A (en) | MoCA equipment parameter configuration method and device | |
| CN105471955A (en) | Writing method of distributed file system, client device and distributed file system | |
| CN104063377A (en) | Information processing method and electronic equipment using same | |
| CN107436848B (en) | Method and device for realizing conversion between user data and compressed data | |
| CN104038566A (en) | Virtual switching device address learning method, apparatus and system | |
| CN103533075A (en) | Method for importing data into iSCSI target and iSCSI starter | |
| CN111367916A (en) | Data storage method and device | |
| CN106933974A (en) | The structure and querying method and device of a kind of video file index information | |
| CN107239226A (en) | A kind of data duplicate removal method and terminal, server | |
| CN107609143B (en) | Fragment information storage method of distributed real-time memory database | |
| CN104506390A (en) | Log storage method and device of road test system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |